Mercurial > sdl-ios-xcode
view src/audio/SDL_audiotypecvt.c @ 3628:4d46850be3f6
Merged r5070:5071 from branches/SDL-1.2: forcibly disable buggy MMX mixers.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 10 Jan 2010 07:48:14 +0000 |
| parents | bfa8d34ce03a |
| children | f7b03b6838cb |
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/* DO NOT EDIT! This file is generated by sdlgenaudiocvt.pl */ /* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_audio.h" #include "SDL_audio_c.h" #ifndef DEBUG_CONVERT #define DEBUG_CONVERT 0 #endif /* If you can guarantee your data and need space, you can eliminate code... */ /* Just build the arbitrary resamplers if you're saving code space. */ #ifndef LESS_RESAMPLERS #define LESS_RESAMPLERS 0 #endif /* Don't build any resamplers if you're REALLY saving code space. */ #ifndef NO_RESAMPLERS #define NO_RESAMPLERS 0 #endif /* Don't build any type converters if you're saving code space. */ #ifndef NO_CONVERTERS #define NO_CONVERTERS 0 #endif /* *INDENT-OFF* */ #define DIVBY127 0.0078740157480315f #define DIVBY32767 3.05185094759972e-05f #define DIVBY2147483647 4.6566128752458e-10f #if !NO_CONVERTERS static void SDLCALL SDL_Convert_U8_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S8.\n"); #endif src = (const Uint8 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, ++src, ++dst) { const Sint8 val = ((*src) ^ 0x80); *dst = ((Sint8) val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_U8_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_U16LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Uint16 val = (((Uint16) *src) << 8); *dst = SDL_SwapLE16(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_U8_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S16LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint16 val = (((Sint16) ((*src) ^ 0x80)) << 8); *dst = ((Sint16) SDL_SwapLE16(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_U8_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_U16MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Uint16 val = (((Uint16) *src) << 8); *dst = SDL_SwapBE16(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_U8_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S16MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint16 val = (((Sint16) ((*src) ^ 0x80)) << 8); *dst = ((Sint16) SDL_SwapBE16(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_U8_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S32LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((*src) ^ 0x80)) << 24); *dst = ((Sint32) SDL_SwapLE32(val)); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_U8_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_S32MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((*src) ^ 0x80)) << 24); *dst = ((Sint32) SDL_SwapBE32(val)); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_U8_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_F32LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const float val = ((((float) *src) * DIVBY127) - 1.0f); *dst = SDL_SwapFloatLE(val); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_U8_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U8 to AUDIO_F32MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const float val = ((((float) *src) * DIVBY127) - 1.0f); *dst = SDL_SwapFloatBE(val); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_S8_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U8.\n"); #endif src = (const Uint8 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, ++src, ++dst) { const Uint8 val = ((((Sint8) *src)) ^ 0x80); *dst = val; } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_S8_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U16LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Uint16 val = (((Uint16) ((((Sint8) *src)) ^ 0x80)) << 8); *dst = SDL_SwapLE16(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_S8_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S16LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint16 val = (((Sint16) ((Sint8) *src)) << 8); *dst = ((Sint16) SDL_SwapLE16(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_S8_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_U16MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Uint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Uint16 val = (((Uint16) ((((Sint8) *src)) ^ 0x80)) << 8); *dst = SDL_SwapBE16(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_S8_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S16MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint16 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint16 val = (((Sint16) ((Sint8) *src)) << 8); *dst = ((Sint16) SDL_SwapBE16(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_S8_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S32LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((Sint8) *src)) << 24); *dst = ((Sint32) SDL_SwapLE32(val)); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_S8_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_S32MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((Sint8) *src)) << 24); *dst = ((Sint32) SDL_SwapBE32(val)); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_S8_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_F32LSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const float val = (((float) ((Sint8) *src)) * DIVBY127); *dst = SDL_SwapFloatLE(val); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_S8_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint8 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S8 to AUDIO_F32MSB.\n"); #endif src = ((const Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 4)) - 1; for (i = cvt->len_cvt / sizeof (Uint8); i; --i, --src, --dst) { const float val = (((float) ((Sint8) *src)) * DIVBY127); *dst = SDL_SwapFloatBE(val); } cvt->len_cvt *= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_U16LSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_U8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) (SDL_SwapLE16(*src) >> 8)); *dst = val; } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_U16LSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (((SDL_SwapLE16(*src)) ^ 0x8000) >> 8)); *dst = ((Sint8) val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_U16LSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S16LSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint16 val = ((SDL_SwapLE16(*src)) ^ 0x8000); *dst = ((Sint16) SDL_SwapLE16(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_U16LSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_U16MSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint16 val = SDL_SwapLE16(*src); *dst = SDL_SwapBE16(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_U16LSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S16MSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint16 val = ((SDL_SwapLE16(*src)) ^ 0x8000); *dst = ((Sint16) SDL_SwapBE16(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_U16LSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((SDL_SwapLE16(*src)) ^ 0x8000)) << 16); *dst = ((Sint32) SDL_SwapLE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_U16LSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_S32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((SDL_SwapLE16(*src)) ^ 0x8000)) << 16); *dst = ((Sint32) SDL_SwapBE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_U16LSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_F32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = ((((float) SDL_SwapLE16(*src)) * DIVBY32767) - 1.0f); *dst = SDL_SwapFloatLE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_U16LSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16LSB to AUDIO_F32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = ((((float) SDL_SwapLE16(*src)) * DIVBY32767) - 1.0f); *dst = SDL_SwapFloatBE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_S16LSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) (((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000) >> 8)); *dst = val; } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_S16LSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (((Sint16) SDL_SwapLE16(*src)) >> 8)); *dst = ((Sint8) val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_S16LSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U16LSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint16 val = ((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000); *dst = SDL_SwapLE16(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_S16LSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_U16MSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint16 val = ((((Sint16) SDL_SwapLE16(*src))) ^ 0x8000); *dst = SDL_SwapBE16(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_S16LSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S16MSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) SDL_SwapLE16(*src)); *dst = ((Sint16) SDL_SwapBE16(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_S16LSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((Sint16) SDL_SwapLE16(*src))) << 16); *dst = ((Sint32) SDL_SwapLE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_S16LSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_S32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((Sint16) SDL_SwapLE16(*src))) << 16); *dst = ((Sint32) SDL_SwapBE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_S16LSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_F32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = (((float) ((Sint16) SDL_SwapLE16(*src))) * DIVBY32767); *dst = SDL_SwapFloatLE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_S16LSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16LSB to AUDIO_F32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = (((float) ((Sint16) SDL_SwapLE16(*src))) * DIVBY32767); *dst = SDL_SwapFloatBE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_U16MSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_U8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) (SDL_SwapBE16(*src) >> 8)); *dst = val; } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_U16MSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (((SDL_SwapBE16(*src)) ^ 0x8000) >> 8)); *dst = ((Sint8) val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_U16MSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_U16LSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint16 val = SDL_SwapBE16(*src); *dst = SDL_SwapLE16(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_U16MSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S16LSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint16 val = ((SDL_SwapBE16(*src)) ^ 0x8000); *dst = ((Sint16) SDL_SwapLE16(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_U16MSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S16MSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint16 val = ((SDL_SwapBE16(*src)) ^ 0x8000); *dst = ((Sint16) SDL_SwapBE16(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_U16MSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((SDL_SwapBE16(*src)) ^ 0x8000)) << 16); *dst = ((Sint32) SDL_SwapLE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_U16MSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_S32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((SDL_SwapBE16(*src)) ^ 0x8000)) << 16); *dst = ((Sint32) SDL_SwapBE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_U16MSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_F32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = ((((float) SDL_SwapBE16(*src)) * DIVBY32767) - 1.0f); *dst = SDL_SwapFloatLE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_U16MSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_U16MSB to AUDIO_F32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = ((((float) SDL_SwapBE16(*src)) * DIVBY32767) - 1.0f); *dst = SDL_SwapFloatBE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_S16MSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_U8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) (((((Sint16) SDL_SwapBE16(*src))) ^ 0x8000) >> 8)); *dst = val; } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_S16MSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S8.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (((Sint16) SDL_SwapBE16(*src)) >> 8)); *dst = ((Sint8) val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_S16MSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_U16LSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint16 val = ((((Sint16) SDL_SwapBE16(*src))) ^ 0x8000); *dst = SDL_SwapLE16(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_S16MSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S16LSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) SDL_SwapBE16(*src)); *dst = ((Sint16) SDL_SwapLE16(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_S16MSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_U16MSB.\n"); #endif src = (const Uint16 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, ++src, ++dst) { const Uint16 val = ((((Sint16) SDL_SwapBE16(*src))) ^ 0x8000); *dst = SDL_SwapBE16(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_S16MSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((Sint16) SDL_SwapBE16(*src))) << 16); *dst = ((Sint32) SDL_SwapLE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_S16MSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_S32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((Sint32 *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const Sint32 val = (((Sint32) ((Sint16) SDL_SwapBE16(*src))) << 16); *dst = ((Sint32) SDL_SwapBE32(val)); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_S16MSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_F32LSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = (((float) ((Sint16) SDL_SwapBE16(*src))) * DIVBY32767); *dst = SDL_SwapFloatLE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_S16MSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint16 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S16MSB to AUDIO_F32MSB.\n"); #endif src = ((const Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; dst = ((float *) (cvt->buf + cvt->len_cvt * 2)) - 1; for (i = cvt->len_cvt / sizeof (Uint16); i; --i, --src, --dst) { const float val = (((float) ((Sint16) SDL_SwapBE16(*src))) * DIVBY32767); *dst = SDL_SwapFloatBE(val); } cvt->len_cvt *= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_S32LSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_U8.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) (((((Sint32) SDL_SwapLE32(*src))) ^ 0x80000000) >> 24)); *dst = val; } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_S32LSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S8.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (((Sint32) SDL_SwapLE32(*src)) >> 24)); *dst = ((Sint8) val); } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_S32LSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_U16LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapLE32(*src))) ^ 0x80000000) >> 16)); *dst = SDL_SwapLE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_S32LSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S16LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (((Sint32) SDL_SwapLE32(*src)) >> 16)); *dst = ((Sint16) SDL_SwapLE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_S32LSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_U16MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapLE32(*src))) ^ 0x80000000) >> 16)); *dst = SDL_SwapBE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_S32LSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S16MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (((Sint32) SDL_SwapLE32(*src)) >> 16)); *dst = ((Sint16) SDL_SwapBE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_S32LSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_S32MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint32 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint32 val = ((Sint32) SDL_SwapLE32(*src)); *dst = ((Sint32) SDL_SwapBE32(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_S32LSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_F32LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (float *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const float val = (((float) ((Sint32) SDL_SwapLE32(*src))) * DIVBY2147483647); *dst = SDL_SwapFloatLE(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_S32LSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32LSB to AUDIO_F32MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (float *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const float val = (((float) ((Sint32) SDL_SwapLE32(*src))) * DIVBY2147483647); *dst = SDL_SwapFloatBE(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_S32MSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_U8.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) (((((Sint32) SDL_SwapBE32(*src))) ^ 0x80000000) >> 24)); *dst = val; } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_S32MSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S8.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (((Sint32) SDL_SwapBE32(*src)) >> 24)); *dst = ((Sint8) val); } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_S32MSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_U16LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapBE32(*src))) ^ 0x80000000) >> 16)); *dst = SDL_SwapLE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_S32MSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S16LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (((Sint32) SDL_SwapBE32(*src)) >> 16)); *dst = ((Sint16) SDL_SwapLE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_S32MSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_U16MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) (((((Sint32) SDL_SwapBE32(*src))) ^ 0x80000000) >> 16)); *dst = SDL_SwapBE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_S32MSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S16MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (((Sint32) SDL_SwapBE32(*src)) >> 16)); *dst = ((Sint16) SDL_SwapBE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_S32MSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_S32LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (Sint32 *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const Sint32 val = ((Sint32) SDL_SwapBE32(*src)); *dst = ((Sint32) SDL_SwapLE32(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_S32MSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_F32LSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (float *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const float val = (((float) ((Sint32) SDL_SwapBE32(*src))) * DIVBY2147483647); *dst = SDL_SwapFloatLE(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } static void SDLCALL SDL_Convert_S32MSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const Uint32 *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_S32MSB to AUDIO_F32MSB.\n"); #endif src = (const Uint32 *) cvt->buf; dst = (float *) cvt->buf; for (i = cvt->len_cvt / sizeof (Uint32); i; --i, ++src, ++dst) { const float val = (((float) ((Sint32) SDL_SwapBE32(*src))) * DIVBY2147483647); *dst = SDL_SwapFloatBE(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_F32LSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_U8.\n"); #endif src = (const float *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) ((SDL_SwapFloatLE(*src) + 1.0f) * 127.0f)); *dst = val; } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_F32LSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S8.\n"); #endif src = (const float *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (SDL_SwapFloatLE(*src) * 127.0f)); *dst = ((Sint8) val); } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_F32LSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_U16LSB.\n"); #endif src = (const float *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) ((SDL_SwapFloatLE(*src) + 1.0f) * 32767.0f)); *dst = SDL_SwapLE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_F32LSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S16LSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (SDL_SwapFloatLE(*src) * 32767.0f)); *dst = ((Sint16) SDL_SwapLE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_F32LSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_U16MSB.\n"); #endif src = (const float *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) ((SDL_SwapFloatLE(*src) + 1.0f) * 32767.0f)); *dst = SDL_SwapBE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_F32LSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S16MSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (SDL_SwapFloatLE(*src) * 32767.0f)); *dst = ((Sint16) SDL_SwapBE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_F32LSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S32LSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint32 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint32 val = ((Sint32) (SDL_SwapFloatLE(*src) * 2147483647.0)); *dst = ((Sint32) SDL_SwapLE32(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_F32LSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_S32MSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint32 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint32 val = ((Sint32) (SDL_SwapFloatLE(*src) * 2147483647.0)); *dst = ((Sint32) SDL_SwapBE32(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_F32LSB_to_F32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32LSB to AUDIO_F32MSB.\n"); #endif src = (const float *) cvt->buf; dst = (float *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const float val = SDL_SwapFloatLE(*src); *dst = SDL_SwapFloatBE(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32MSB); } } static void SDLCALL SDL_Convert_F32MSB_to_U8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Uint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_U8.\n"); #endif src = (const float *) cvt->buf; dst = (Uint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Uint8 val = ((Uint8) ((SDL_SwapFloatBE(*src) + 1.0f) * 127.0f)); *dst = val; } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U8); } } static void SDLCALL SDL_Convert_F32MSB_to_S8(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint8 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S8.\n"); #endif src = (const float *) cvt->buf; dst = (Sint8 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint8 val = ((Sint8) (SDL_SwapFloatBE(*src) * 127.0f)); *dst = ((Sint8) val); } cvt->len_cvt /= 4; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S8); } } static void SDLCALL SDL_Convert_F32MSB_to_U16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_U16LSB.\n"); #endif src = (const float *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) ((SDL_SwapFloatBE(*src) + 1.0f) * 32767.0f)); *dst = SDL_SwapLE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16LSB); } } static void SDLCALL SDL_Convert_F32MSB_to_S16LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S16LSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (SDL_SwapFloatBE(*src) * 32767.0f)); *dst = ((Sint16) SDL_SwapLE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16LSB); } } static void SDLCALL SDL_Convert_F32MSB_to_U16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Uint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_U16MSB.\n"); #endif src = (const float *) cvt->buf; dst = (Uint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Uint16 val = ((Uint16) ((SDL_SwapFloatBE(*src) + 1.0f) * 32767.0f)); *dst = SDL_SwapBE16(val); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_U16MSB); } } static void SDLCALL SDL_Convert_F32MSB_to_S16MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint16 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S16MSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint16 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint16 val = ((Sint16) (SDL_SwapFloatBE(*src) * 32767.0f)); *dst = ((Sint16) SDL_SwapBE16(val)); } cvt->len_cvt /= 2; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S16MSB); } } static void SDLCALL SDL_Convert_F32MSB_to_S32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S32LSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint32 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint32 val = ((Sint32) (SDL_SwapFloatBE(*src) * 2147483647.0)); *dst = ((Sint32) SDL_SwapLE32(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32LSB); } } static void SDLCALL SDL_Convert_F32MSB_to_S32MSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; Sint32 *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_S32MSB.\n"); #endif src = (const float *) cvt->buf; dst = (Sint32 *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const Sint32 val = ((Sint32) (SDL_SwapFloatBE(*src) * 2147483647.0)); *dst = ((Sint32) SDL_SwapBE32(val)); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_S32MSB); } } static void SDLCALL SDL_Convert_F32MSB_to_F32LSB(SDL_AudioCVT * cvt, SDL_AudioFormat format) { int i; const float *src; float *dst; #if DEBUG_CONVERT fprintf(stderr, "Converting AUDIO_F32MSB to AUDIO_F32LSB.\n"); #endif src = (const float *) cvt->buf; dst = (float *) cvt->buf; for (i = cvt->len_cvt / sizeof (float); i; --i, ++src, ++dst) { const float val = SDL_SwapFloatBE(*src); *dst = SDL_SwapFloatLE(val); } if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, AUDIO_F32LSB); } } #endif /* !NO_CONVERTERS */ const SDL_AudioTypeFilters sdl_audio_type_filters[] = { #if !NO_CONVERTERS { AUDIO_U8, AUDIO_S8, SDL_Convert_U8_to_S8 }, { AUDIO_U8, AUDIO_U16LSB, SDL_Convert_U8_to_U16LSB }, { AUDIO_U8, AUDIO_S16LSB, SDL_Convert_U8_to_S16LSB }, { AUDIO_U8, AUDIO_U16MSB, SDL_Convert_U8_to_U16MSB }, { AUDIO_U8, AUDIO_S16MSB, SDL_Convert_U8_to_S16MSB }, { AUDIO_U8, AUDIO_S32LSB, SDL_Convert_U8_to_S32LSB }, { AUDIO_U8, AUDIO_S32MSB, SDL_Convert_U8_to_S32MSB }, { AUDIO_U8, AUDIO_F32LSB, SDL_Convert_U8_to_F32LSB }, { AUDIO_U8, AUDIO_F32MSB, SDL_Convert_U8_to_F32MSB }, { AUDIO_S8, AUDIO_U8, SDL_Convert_S8_to_U8 }, { AUDIO_S8, AUDIO_U16LSB, SDL_Convert_S8_to_U16LSB }, { AUDIO_S8, AUDIO_S16LSB, SDL_Convert_S8_to_S16LSB }, { AUDIO_S8, AUDIO_U16MSB, SDL_Convert_S8_to_U16MSB }, { AUDIO_S8, AUDIO_S16MSB, SDL_Convert_S8_to_S16MSB }, { AUDIO_S8, AUDIO_S32LSB, SDL_Convert_S8_to_S32LSB }, { AUDIO_S8, AUDIO_S32MSB, SDL_Convert_S8_to_S32MSB }, { AUDIO_S8, AUDIO_F32LSB, SDL_Convert_S8_to_F32LSB }, { AUDIO_S8, AUDIO_F32MSB, SDL_Convert_S8_to_F32MSB }, { AUDIO_U16LSB, AUDIO_U8, SDL_Convert_U16LSB_to_U8 }, { AUDIO_U16LSB, AUDIO_S8, SDL_Convert_U16LSB_to_S8 }, { AUDIO_U16LSB, AUDIO_S16LSB, SDL_Convert_U16LSB_to_S16LSB }, { AUDIO_U16LSB, AUDIO_U16MSB, SDL_Convert_U16LSB_to_U16MSB }, { AUDIO_U16LSB, AUDIO_S16MSB, SDL_Convert_U16LSB_to_S16MSB }, { AUDIO_U16LSB, AUDIO_S32LSB, SDL_Convert_U16LSB_to_S32LSB }, { AUDIO_U16LSB, AUDIO_S32MSB, SDL_Convert_U16LSB_to_S32MSB }, { AUDIO_U16LSB, AUDIO_F32LSB, SDL_Convert_U16LSB_to_F32LSB }, { AUDIO_U16LSB, AUDIO_F32MSB, SDL_Convert_U16LSB_to_F32MSB }, { AUDIO_S16LSB, AUDIO_U8, SDL_Convert_S16LSB_to_U8 }, { AUDIO_S16LSB, AUDIO_S8, SDL_Convert_S16LSB_to_S8 }, { AUDIO_S16LSB, AUDIO_U16LSB, SDL_Convert_S16LSB_to_U16LSB }, { AUDIO_S16LSB, AUDIO_U16MSB, SDL_Convert_S16LSB_to_U16MSB }, { AUDIO_S16LSB, AUDIO_S16MSB, SDL_Convert_S16LSB_to_S16MSB }, { AUDIO_S16LSB, AUDIO_S32LSB, SDL_Convert_S16LSB_to_S32LSB }, { AUDIO_S16LSB, AUDIO_S32MSB, SDL_Convert_S16LSB_to_S32MSB }, { AUDIO_S16LSB, AUDIO_F32LSB, SDL_Convert_S16LSB_to_F32LSB }, { AUDIO_S16LSB, AUDIO_F32MSB, SDL_Convert_S16LSB_to_F32MSB }, { AUDIO_U16MSB, AUDIO_U8, SDL_Convert_U16MSB_to_U8 }, { AUDIO_U16MSB, AUDIO_S8, SDL_Convert_U16MSB_to_S8 }, { AUDIO_U16MSB, AUDIO_U16LSB, SDL_Convert_U16MSB_to_U16LSB }, { AUDIO_U16MSB, AUDIO_S16LSB, SDL_Convert_U16MSB_to_S16LSB }, { AUDIO_U16MSB, AUDIO_S16MSB, SDL_Convert_U16MSB_to_S16MSB }, { AUDIO_U16MSB, AUDIO_S32LSB, SDL_Convert_U16MSB_to_S32LSB }, { AUDIO_U16MSB, AUDIO_S32MSB, SDL_Convert_U16MSB_to_S32MSB }, { AUDIO_U16MSB, AUDIO_F32LSB, SDL_Convert_U16MSB_to_F32LSB }, { AUDIO_U16MSB, AUDIO_F32MSB, SDL_Convert_U16MSB_to_F32MSB }, { AUDIO_S16MSB, AUDIO_U8, SDL_Convert_S16MSB_to_U8 }, { AUDIO_S16MSB, AUDIO_S8, SDL_Convert_S16MSB_to_S8 }, { AUDIO_S16MSB, AUDIO_U16LSB, SDL_Convert_S16MSB_to_U16LSB }, { AUDIO_S16MSB, AUDIO_S16LSB, SDL_Convert_S16MSB_to_S16LSB }, { AUDIO_S16MSB, AUDIO_U16MSB, SDL_Convert_S16MSB_to_U16MSB }, { AUDIO_S16MSB, AUDIO_S32LSB, SDL_Convert_S16MSB_to_S32LSB }, { AUDIO_S16MSB, AUDIO_S32MSB, SDL_Convert_S16MSB_to_S32MSB }, { AUDIO_S16MSB, AUDIO_F32LSB, SDL_Convert_S16MSB_to_F32LSB }, { AUDIO_S16MSB, AUDIO_F32MSB, SDL_Convert_S16MSB_to_F32MSB }, { AUDIO_S32LSB, AUDIO_U8, SDL_Convert_S32LSB_to_U8 }, { AUDIO_S32LSB, AUDIO_S8, SDL_Convert_S32LSB_to_S8 }, { AUDIO_S32LSB, AUDIO_U16LSB, SDL_Convert_S32LSB_to_U16LSB }, { AUDIO_S32LSB, AUDIO_S16LSB, SDL_Convert_S32LSB_to_S16LSB }, { AUDIO_S32LSB, AUDIO_U16MSB, SDL_Convert_S32LSB_to_U16MSB }, { AUDIO_S32LSB, AUDIO_S16MSB, SDL_Convert_S32LSB_to_S16MSB }, { AUDIO_S32LSB, AUDIO_S32MSB, SDL_Convert_S32LSB_to_S32MSB }, { AUDIO_S32LSB, AUDIO_F32LSB, SDL_Convert_S32LSB_to_F32LSB }, { AUDIO_S32LSB, AUDIO_F32MSB, SDL_Convert_S32LSB_to_F32MSB }, { AUDIO_S32MSB, AUDIO_U8, SDL_Convert_S32MSB_to_U8 }, { AUDIO_S32MSB, AUDIO_S8, SDL_Convert_S32MSB_to_S8 }, { AUDIO_S32MSB, AUDIO_U16LSB, SDL_Convert_S32MSB_to_U16LSB }, { AUDIO_S32MSB, AUDIO_S16LSB, SDL_Convert_S32MSB_to_S16LSB }, { AUDIO_S32MSB, AUDIO_U16MSB, SDL_Convert_S32MSB_to_U16MSB }, { AUDIO_S32MSB, AUDIO_S16MSB, SDL_Convert_S32MSB_to_S16MSB }, { AUDIO_S32MSB, AUDIO_S32LSB, SDL_Convert_S32MSB_to_S32LSB }, { AUDIO_S32MSB, AUDIO_F32LSB, SDL_Convert_S32MSB_to_F32LSB }, { AUDIO_S32MSB, AUDIO_F32MSB, SDL_Convert_S32MSB_to_F32MSB }, { AUDIO_F32LSB, AUDIO_U8, SDL_Convert_F32LSB_to_U8 }, { AUDIO_F32LSB, AUDIO_S8, SDL_Convert_F32LSB_to_S8 }, { AUDIO_F32LSB, AUDIO_U16LSB, SDL_Convert_F32LSB_to_U16LSB }, { AUDIO_F32LSB, AUDIO_S16LSB, SDL_Convert_F32LSB_to_S16LSB }, { AUDIO_F32LSB, AUDIO_U16MSB, SDL_Convert_F32LSB_to_U16MSB }, { AUDIO_F32LSB, AUDIO_S16MSB, SDL_Convert_F32LSB_to_S16MSB }, { AUDIO_F32LSB, AUDIO_S32LSB, SDL_Convert_F32LSB_to_S32LSB }, { AUDIO_F32LSB, AUDIO_S32MSB, SDL_Convert_F32LSB_to_S32MSB }, { AUDIO_F32LSB, AUDIO_F32MSB, SDL_Convert_F32LSB_to_F32MSB }, { AUDIO_F32MSB, AUDIO_U8, SDL_Convert_F32MSB_to_U8 }, { AUDIO_F32MSB, AUDIO_S8, SDL_Convert_F32MSB_to_S8 }, { AUDIO_F32MSB, AUDIO_U16LSB, SDL_Convert_F32MSB_to_U16LSB }, { AUDIO_F32MSB, AUDIO_S16LSB, SDL_Convert_F32MSB_to_S16LSB }, { AUDIO_F32MSB, AUDIO_U16MSB, SDL_Convert_F32MSB_to_U16MSB }, { AUDIO_F32MSB, AUDIO_S16MSB, SDL_Convert_F32MSB_to_S16MSB }, { AUDIO_F32MSB, AUDIO_S32LSB, SDL_Convert_F32MSB_to_S32LSB }, { AUDIO_F32MSB, AUDIO_S32MSB, SDL_Convert_F32MSB_to_S32MSB }, { AUDIO_F32MSB, AUDIO_F32LSB, SDL_Convert_F32MSB_to_F32LSB }, #endif /* !NO_CONVERTERS */ { 0, 0, NULL } }; #if !NO_RESAMPLERS static void SDLCALL SDL_Upsample_U8_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 16; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 1; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint8 *target = ((const Uint8 *) cvt->buf) - 1; Uint8 sample0 = src[0]; Uint8 last_sample0 = sample0; while (dst != target) { dst[0] = sample0; dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 16; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Uint8 sample0 = src[0]; Uint8 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = sample0; dst++; sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 2; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint8 *target = ((const Uint8 *) cvt->buf) - 2; Uint8 sample1 = src[1]; Uint8 sample0 = src[0]; Uint8 last_sample1 = sample1; Uint8 last_sample0 = sample0; while (dst != target) { dst[1] = sample1; dst[0] = sample0; dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Uint8 sample0 = src[0]; Uint8 sample1 = src[1]; Uint8 last_sample0 = sample0; Uint8 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = sample0; dst[1] = sample1; dst += 2; sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 4; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint8 *target = ((const Uint8 *) cvt->buf) - 4; Uint8 sample3 = src[3]; Uint8 sample2 = src[2]; Uint8 sample1 = src[1]; Uint8 sample0 = src[0]; Uint8 last_sample3 = sample3; Uint8 last_sample2 = sample2; Uint8 last_sample1 = sample1; Uint8 last_sample0 = sample0; while (dst != target) { dst[3] = sample3; dst[2] = sample2; dst[1] = sample1; dst[0] = sample0; dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1); sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Uint8 sample0 = src[0]; Uint8 sample1 = src[1]; Uint8 sample2 = src[2]; Uint8 sample3 = src[3]; Uint8 last_sample0 = sample0; Uint8 last_sample1 = sample1; Uint8 last_sample2 = sample2; Uint8 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = sample0; dst[1] = sample1; dst[2] = sample2; dst[3] = sample3; dst += 4; sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1); sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 96; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 6; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint8 *target = ((const Uint8 *) cvt->buf) - 6; Uint8 sample5 = src[5]; Uint8 sample4 = src[4]; Uint8 sample3 = src[3]; Uint8 sample2 = src[2]; Uint8 sample1 = src[1]; Uint8 sample0 = src[0]; Uint8 last_sample5 = sample5; Uint8 last_sample4 = sample4; Uint8 last_sample3 = sample3; Uint8 last_sample2 = sample2; Uint8 last_sample1 = sample1; Uint8 last_sample0 = sample0; while (dst != target) { dst[5] = sample5; dst[4] = sample4; dst[3] = sample3; dst[2] = sample2; dst[1] = sample1; dst[0] = sample0; dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1); sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1); sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1); sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 96; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Uint8 sample0 = src[0]; Uint8 sample1 = src[1]; Uint8 sample2 = src[2]; Uint8 sample3 = src[3]; Uint8 sample4 = src[4]; Uint8 sample5 = src[5]; Uint8 last_sample0 = sample0; Uint8 last_sample1 = sample1; Uint8 last_sample2 = sample2; Uint8 last_sample3 = sample3; Uint8 last_sample4 = sample4; Uint8 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = sample0; dst[1] = sample1; dst[2] = sample2; dst[3] = sample3; dst[4] = sample4; dst[5] = sample5; dst += 6; sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1); sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1); sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1); sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U8, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 8; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint8 *target = ((const Uint8 *) cvt->buf) - 8; Uint8 sample7 = src[7]; Uint8 sample6 = src[6]; Uint8 sample5 = src[5]; Uint8 sample4 = src[4]; Uint8 sample3 = src[3]; Uint8 sample2 = src[2]; Uint8 sample1 = src[1]; Uint8 sample0 = src[0]; Uint8 last_sample7 = sample7; Uint8 last_sample6 = sample6; Uint8 last_sample5 = sample5; Uint8 last_sample4 = sample4; Uint8 last_sample3 = sample3; Uint8 last_sample2 = sample2; Uint8 last_sample1 = sample1; Uint8 last_sample0 = sample0; while (dst != target) { dst[7] = sample7; dst[6] = sample6; dst[5] = sample5; dst[4] = sample4; dst[3] = sample3; dst[2] = sample2; dst[1] = sample1; dst[0] = sample0; dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Uint8) ((((Sint16) src[7]) + ((Sint16) last_sample7)) >> 1); sample6 = (Uint8) ((((Sint16) src[6]) + ((Sint16) last_sample6)) >> 1); sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1); sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1); sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1); sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U8, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Uint8 sample0 = src[0]; Uint8 sample1 = src[1]; Uint8 sample2 = src[2]; Uint8 sample3 = src[3]; Uint8 sample4 = src[4]; Uint8 sample5 = src[5]; Uint8 sample6 = src[6]; Uint8 sample7 = src[7]; Uint8 last_sample0 = sample0; Uint8 last_sample1 = sample1; Uint8 last_sample2 = sample2; Uint8 last_sample3 = sample3; Uint8 last_sample4 = sample4; Uint8 last_sample5 = sample5; Uint8 last_sample6 = sample6; Uint8 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = sample0; dst[1] = sample1; dst[2] = sample2; dst[3] = sample3; dst[4] = sample4; dst[5] = sample5; dst[6] = sample6; dst[7] = sample7; dst += 8; sample0 = (Uint8) ((((Sint16) src[0]) + ((Sint16) last_sample0)) >> 1); sample1 = (Uint8) ((((Sint16) src[1]) + ((Sint16) last_sample1)) >> 1); sample2 = (Uint8) ((((Sint16) src[2]) + ((Sint16) last_sample2)) >> 1); sample3 = (Uint8) ((((Sint16) src[3]) + ((Sint16) last_sample3)) >> 1); sample4 = (Uint8) ((((Sint16) src[4]) + ((Sint16) last_sample4)) >> 1); sample5 = (Uint8) ((((Sint16) src[5]) + ((Sint16) last_sample5)) >> 1); sample6 = (Uint8) ((((Sint16) src[6]) + ((Sint16) last_sample6)) >> 1); sample7 = (Uint8) ((((Sint16) src[7]) + ((Sint16) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 16; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 1; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint8 *target = ((const Sint8 *) cvt->buf) - 1; Sint8 sample0 = ((Sint8) src[0]); Sint8 last_sample0 = sample0; while (dst != target) { dst[0] = ((Sint8) sample0); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 16; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint8 sample0 = ((Sint8) src[0]); Sint8 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint8) sample0); dst++; sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 2; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint8 *target = ((const Sint8 *) cvt->buf) - 2; Sint8 sample1 = ((Sint8) src[1]); Sint8 sample0 = ((Sint8) src[0]); Sint8 last_sample1 = sample1; Sint8 last_sample0 = sample0; while (dst != target) { dst[1] = ((Sint8) sample1); dst[0] = ((Sint8) sample0); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint8 sample0 = ((Sint8) src[0]); Sint8 sample1 = ((Sint8) src[1]); Sint8 last_sample0 = sample0; Sint8 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint8) sample0); dst[1] = ((Sint8) sample1); dst += 2; sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 4; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint8 *target = ((const Sint8 *) cvt->buf) - 4; Sint8 sample3 = ((Sint8) src[3]); Sint8 sample2 = ((Sint8) src[2]); Sint8 sample1 = ((Sint8) src[1]); Sint8 sample0 = ((Sint8) src[0]); Sint8 last_sample3 = sample3; Sint8 last_sample2 = sample2; Sint8 last_sample1 = sample1; Sint8 last_sample0 = sample0; while (dst != target) { dst[3] = ((Sint8) sample3); dst[2] = ((Sint8) sample2); dst[1] = ((Sint8) sample1); dst[0] = ((Sint8) sample0); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1); sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint8 sample0 = ((Sint8) src[0]); Sint8 sample1 = ((Sint8) src[1]); Sint8 sample2 = ((Sint8) src[2]); Sint8 sample3 = ((Sint8) src[3]); Sint8 last_sample0 = sample0; Sint8 last_sample1 = sample1; Sint8 last_sample2 = sample2; Sint8 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint8) sample0); dst[1] = ((Sint8) sample1); dst[2] = ((Sint8) sample2); dst[3] = ((Sint8) sample3); dst += 4; sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1); sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 96; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 6; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint8 *target = ((const Sint8 *) cvt->buf) - 6; Sint8 sample5 = ((Sint8) src[5]); Sint8 sample4 = ((Sint8) src[4]); Sint8 sample3 = ((Sint8) src[3]); Sint8 sample2 = ((Sint8) src[2]); Sint8 sample1 = ((Sint8) src[1]); Sint8 sample0 = ((Sint8) src[0]); Sint8 last_sample5 = sample5; Sint8 last_sample4 = sample4; Sint8 last_sample3 = sample3; Sint8 last_sample2 = sample2; Sint8 last_sample1 = sample1; Sint8 last_sample0 = sample0; while (dst != target) { dst[5] = ((Sint8) sample5); dst[4] = ((Sint8) sample4); dst[3] = ((Sint8) sample3); dst[2] = ((Sint8) sample2); dst[1] = ((Sint8) sample1); dst[0] = ((Sint8) sample0); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1); sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1); sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1); sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 96; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint8 sample0 = ((Sint8) src[0]); Sint8 sample1 = ((Sint8) src[1]); Sint8 sample2 = ((Sint8) src[2]); Sint8 sample3 = ((Sint8) src[3]); Sint8 sample4 = ((Sint8) src[4]); Sint8 sample5 = ((Sint8) src[5]); Sint8 last_sample0 = sample0; Sint8 last_sample1 = sample1; Sint8 last_sample2 = sample2; Sint8 last_sample3 = sample3; Sint8 last_sample4 = sample4; Sint8 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint8) sample0); dst[1] = ((Sint8) sample1); dst[2] = ((Sint8) sample2); dst[3] = ((Sint8) sample3); dst[4] = ((Sint8) sample4); dst[5] = ((Sint8) sample5); dst += 6; sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1); sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1); sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1); sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S8, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 8; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint8 *target = ((const Sint8 *) cvt->buf) - 8; Sint8 sample7 = ((Sint8) src[7]); Sint8 sample6 = ((Sint8) src[6]); Sint8 sample5 = ((Sint8) src[5]); Sint8 sample4 = ((Sint8) src[4]); Sint8 sample3 = ((Sint8) src[3]); Sint8 sample2 = ((Sint8) src[2]); Sint8 sample1 = ((Sint8) src[1]); Sint8 sample0 = ((Sint8) src[0]); Sint8 last_sample7 = sample7; Sint8 last_sample6 = sample6; Sint8 last_sample5 = sample5; Sint8 last_sample4 = sample4; Sint8 last_sample3 = sample3; Sint8 last_sample2 = sample2; Sint8 last_sample1 = sample1; Sint8 last_sample0 = sample0; while (dst != target) { dst[7] = ((Sint8) sample7); dst[6] = ((Sint8) sample6); dst[5] = ((Sint8) sample5); dst[4] = ((Sint8) sample4); dst[3] = ((Sint8) sample3); dst[2] = ((Sint8) sample2); dst[1] = ((Sint8) sample1); dst[0] = ((Sint8) sample0); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Sint8) ((((Sint16) ((Sint8) src[7])) + ((Sint16) last_sample7)) >> 1); sample6 = (Sint8) ((((Sint16) ((Sint8) src[6])) + ((Sint16) last_sample6)) >> 1); sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1); sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1); sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1); sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S8, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint8 sample0 = ((Sint8) src[0]); Sint8 sample1 = ((Sint8) src[1]); Sint8 sample2 = ((Sint8) src[2]); Sint8 sample3 = ((Sint8) src[3]); Sint8 sample4 = ((Sint8) src[4]); Sint8 sample5 = ((Sint8) src[5]); Sint8 sample6 = ((Sint8) src[6]); Sint8 sample7 = ((Sint8) src[7]); Sint8 last_sample0 = sample0; Sint8 last_sample1 = sample1; Sint8 last_sample2 = sample2; Sint8 last_sample3 = sample3; Sint8 last_sample4 = sample4; Sint8 last_sample5 = sample5; Sint8 last_sample6 = sample6; Sint8 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint8) sample0); dst[1] = ((Sint8) sample1); dst[2] = ((Sint8) sample2); dst[3] = ((Sint8) sample3); dst[4] = ((Sint8) sample4); dst[5] = ((Sint8) sample5); dst[6] = ((Sint8) sample6); dst[7] = ((Sint8) sample7); dst += 8; sample0 = (Sint8) ((((Sint16) ((Sint8) src[0])) + ((Sint16) last_sample0)) >> 1); sample1 = (Sint8) ((((Sint16) ((Sint8) src[1])) + ((Sint16) last_sample1)) >> 1); sample2 = (Sint8) ((((Sint16) ((Sint8) src[2])) + ((Sint16) last_sample2)) >> 1); sample3 = (Sint8) ((((Sint16) ((Sint8) src[3])) + ((Sint16) last_sample3)) >> 1); sample4 = (Sint8) ((((Sint16) ((Sint8) src[4])) + ((Sint16) last_sample4)) >> 1); sample5 = (Sint8) ((((Sint16) ((Sint8) src[5])) + ((Sint16) last_sample5)) >> 1); sample6 = (Sint8) ((((Sint16) ((Sint8) src[6])) + ((Sint16) last_sample6)) >> 1); sample7 = (Sint8) ((((Sint16) ((Sint8) src[7])) + ((Sint16) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint16 *target = ((const Uint16 *) cvt->buf) - 1; Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 last_sample0 = sample0; while (dst != target) { dst[0] = SDL_SwapLE16(sample0); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapLE16(sample0); dst++; sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint16 *target = ((const Uint16 *) cvt->buf) - 2; Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[1] = SDL_SwapLE16(sample1); dst[0] = SDL_SwapLE16(sample0); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapLE16(sample0); dst[1] = SDL_SwapLE16(sample1); dst += 2; sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint16 *target = ((const Uint16 *) cvt->buf) - 4; Uint16 sample3 = SDL_SwapLE16(src[3]); Uint16 sample2 = SDL_SwapLE16(src[2]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 last_sample3 = sample3; Uint16 last_sample2 = sample2; Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[3] = SDL_SwapLE16(sample3); dst[2] = SDL_SwapLE16(sample2); dst[1] = SDL_SwapLE16(sample1); dst[0] = SDL_SwapLE16(sample0); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample2 = SDL_SwapLE16(src[2]); Uint16 sample3 = SDL_SwapLE16(src[3]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; Uint16 last_sample2 = sample2; Uint16 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapLE16(sample0); dst[1] = SDL_SwapLE16(sample1); dst[2] = SDL_SwapLE16(sample2); dst[3] = SDL_SwapLE16(sample3); dst += 4; sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint16 *target = ((const Uint16 *) cvt->buf) - 6; Uint16 sample5 = SDL_SwapLE16(src[5]); Uint16 sample4 = SDL_SwapLE16(src[4]); Uint16 sample3 = SDL_SwapLE16(src[3]); Uint16 sample2 = SDL_SwapLE16(src[2]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 last_sample5 = sample5; Uint16 last_sample4 = sample4; Uint16 last_sample3 = sample3; Uint16 last_sample2 = sample2; Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[5] = SDL_SwapLE16(sample5); dst[4] = SDL_SwapLE16(sample4); dst[3] = SDL_SwapLE16(sample3); dst[2] = SDL_SwapLE16(sample2); dst[1] = SDL_SwapLE16(sample1); dst[0] = SDL_SwapLE16(sample0); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample2 = SDL_SwapLE16(src[2]); Uint16 sample3 = SDL_SwapLE16(src[3]); Uint16 sample4 = SDL_SwapLE16(src[4]); Uint16 sample5 = SDL_SwapLE16(src[5]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; Uint16 last_sample2 = sample2; Uint16 last_sample3 = sample3; Uint16 last_sample4 = sample4; Uint16 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapLE16(sample0); dst[1] = SDL_SwapLE16(sample1); dst[2] = SDL_SwapLE16(sample2); dst[3] = SDL_SwapLE16(sample3); dst[4] = SDL_SwapLE16(sample4); dst[5] = SDL_SwapLE16(sample5); dst += 6; sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint16 *target = ((const Uint16 *) cvt->buf) - 8; Uint16 sample7 = SDL_SwapLE16(src[7]); Uint16 sample6 = SDL_SwapLE16(src[6]); Uint16 sample5 = SDL_SwapLE16(src[5]); Uint16 sample4 = SDL_SwapLE16(src[4]); Uint16 sample3 = SDL_SwapLE16(src[3]); Uint16 sample2 = SDL_SwapLE16(src[2]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 last_sample7 = sample7; Uint16 last_sample6 = sample6; Uint16 last_sample5 = sample5; Uint16 last_sample4 = sample4; Uint16 last_sample3 = sample3; Uint16 last_sample2 = sample2; Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[7] = SDL_SwapLE16(sample7); dst[6] = SDL_SwapLE16(sample6); dst[5] = SDL_SwapLE16(sample5); dst[4] = SDL_SwapLE16(sample4); dst[3] = SDL_SwapLE16(sample3); dst[2] = SDL_SwapLE16(sample2); dst[1] = SDL_SwapLE16(sample1); dst[0] = SDL_SwapLE16(sample0); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Uint16) ((((Sint32) SDL_SwapLE16(src[7])) + ((Sint32) last_sample7)) >> 1); sample6 = (Uint16) ((((Sint32) SDL_SwapLE16(src[6])) + ((Sint32) last_sample6)) >> 1); sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapLE16(src[0]); Uint16 sample1 = SDL_SwapLE16(src[1]); Uint16 sample2 = SDL_SwapLE16(src[2]); Uint16 sample3 = SDL_SwapLE16(src[3]); Uint16 sample4 = SDL_SwapLE16(src[4]); Uint16 sample5 = SDL_SwapLE16(src[5]); Uint16 sample6 = SDL_SwapLE16(src[6]); Uint16 sample7 = SDL_SwapLE16(src[7]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; Uint16 last_sample2 = sample2; Uint16 last_sample3 = sample3; Uint16 last_sample4 = sample4; Uint16 last_sample5 = sample5; Uint16 last_sample6 = sample6; Uint16 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapLE16(sample0); dst[1] = SDL_SwapLE16(sample1); dst[2] = SDL_SwapLE16(sample2); dst[3] = SDL_SwapLE16(sample3); dst[4] = SDL_SwapLE16(sample4); dst[5] = SDL_SwapLE16(sample5); dst[6] = SDL_SwapLE16(sample6); dst[7] = SDL_SwapLE16(sample7); dst += 8; sample0 = (Uint16) ((((Sint32) SDL_SwapLE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapLE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapLE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapLE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapLE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample5 = (Uint16) ((((Sint32) SDL_SwapLE16(src[5])) + ((Sint32) last_sample5)) >> 1); sample6 = (Uint16) ((((Sint32) SDL_SwapLE16(src[6])) + ((Sint32) last_sample6)) >> 1); sample7 = (Uint16) ((((Sint32) SDL_SwapLE16(src[7])) + ((Sint32) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint16 *target = ((const Sint16 *) cvt->buf) - 1; Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 last_sample0 = sample0; while (dst != target) { dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst++; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint16 *target = ((const Sint16 *) cvt->buf) - 2; Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst += 2; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint16 *target = ((const Sint16 *) cvt->buf) - 4; Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3])); Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 last_sample3 = sample3; Sint16 last_sample2 = sample2; Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[3] = ((Sint16) SDL_SwapLE16(sample3)); dst[2] = ((Sint16) SDL_SwapLE16(sample2)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2])); Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; Sint16 last_sample2 = sample2; Sint16 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[2] = ((Sint16) SDL_SwapLE16(sample2)); dst[3] = ((Sint16) SDL_SwapLE16(sample3)); dst += 4; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint16 *target = ((const Sint16 *) cvt->buf) - 6; Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5])); Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4])); Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3])); Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 last_sample5 = sample5; Sint16 last_sample4 = sample4; Sint16 last_sample3 = sample3; Sint16 last_sample2 = sample2; Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[5] = ((Sint16) SDL_SwapLE16(sample5)); dst[4] = ((Sint16) SDL_SwapLE16(sample4)); dst[3] = ((Sint16) SDL_SwapLE16(sample3)); dst[2] = ((Sint16) SDL_SwapLE16(sample2)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2])); Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3])); Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4])); Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; Sint16 last_sample2 = sample2; Sint16 last_sample3 = sample3; Sint16 last_sample4 = sample4; Sint16 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[2] = ((Sint16) SDL_SwapLE16(sample2)); dst[3] = ((Sint16) SDL_SwapLE16(sample3)); dst[4] = ((Sint16) SDL_SwapLE16(sample4)); dst[5] = ((Sint16) SDL_SwapLE16(sample5)); dst += 6; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint16 *target = ((const Sint16 *) cvt->buf) - 8; Sint16 sample7 = ((Sint16) SDL_SwapLE16(src[7])); Sint16 sample6 = ((Sint16) SDL_SwapLE16(src[6])); Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5])); Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4])); Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3])); Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 last_sample7 = sample7; Sint16 last_sample6 = sample6; Sint16 last_sample5 = sample5; Sint16 last_sample4 = sample4; Sint16 last_sample3 = sample3; Sint16 last_sample2 = sample2; Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[7] = ((Sint16) SDL_SwapLE16(sample7)); dst[6] = ((Sint16) SDL_SwapLE16(sample6)); dst[5] = ((Sint16) SDL_SwapLE16(sample5)); dst[4] = ((Sint16) SDL_SwapLE16(sample4)); dst[3] = ((Sint16) SDL_SwapLE16(sample3)); dst[2] = ((Sint16) SDL_SwapLE16(sample2)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[7]))) + ((Sint32) last_sample7)) >> 1); sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[6]))) + ((Sint32) last_sample6)) >> 1); sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapLE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapLE16(src[1])); Sint16 sample2 = ((Sint16) SDL_SwapLE16(src[2])); Sint16 sample3 = ((Sint16) SDL_SwapLE16(src[3])); Sint16 sample4 = ((Sint16) SDL_SwapLE16(src[4])); Sint16 sample5 = ((Sint16) SDL_SwapLE16(src[5])); Sint16 sample6 = ((Sint16) SDL_SwapLE16(src[6])); Sint16 sample7 = ((Sint16) SDL_SwapLE16(src[7])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; Sint16 last_sample2 = sample2; Sint16 last_sample3 = sample3; Sint16 last_sample4 = sample4; Sint16 last_sample5 = sample5; Sint16 last_sample6 = sample6; Sint16 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapLE16(sample0)); dst[1] = ((Sint16) SDL_SwapLE16(sample1)); dst[2] = ((Sint16) SDL_SwapLE16(sample2)); dst[3] = ((Sint16) SDL_SwapLE16(sample3)); dst[4] = ((Sint16) SDL_SwapLE16(sample4)); dst[5] = ((Sint16) SDL_SwapLE16(sample5)); dst[6] = ((Sint16) SDL_SwapLE16(sample6)); dst[7] = ((Sint16) SDL_SwapLE16(sample7)); dst += 8; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[5]))) + ((Sint32) last_sample5)) >> 1); sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[6]))) + ((Sint32) last_sample6)) >> 1); sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapLE16(src[7]))) + ((Sint32) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint16 *target = ((const Uint16 *) cvt->buf) - 1; Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 last_sample0 = sample0; while (dst != target) { dst[0] = SDL_SwapBE16(sample0); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapBE16(sample0); dst++; sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint16 *target = ((const Uint16 *) cvt->buf) - 2; Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[1] = SDL_SwapBE16(sample1); dst[0] = SDL_SwapBE16(sample0); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapBE16(sample0); dst[1] = SDL_SwapBE16(sample1); dst += 2; sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint16 *target = ((const Uint16 *) cvt->buf) - 4; Uint16 sample3 = SDL_SwapBE16(src[3]); Uint16 sample2 = SDL_SwapBE16(src[2]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 last_sample3 = sample3; Uint16 last_sample2 = sample2; Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[3] = SDL_SwapBE16(sample3); dst[2] = SDL_SwapBE16(sample2); dst[1] = SDL_SwapBE16(sample1); dst[0] = SDL_SwapBE16(sample0); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample2 = SDL_SwapBE16(src[2]); Uint16 sample3 = SDL_SwapBE16(src[3]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; Uint16 last_sample2 = sample2; Uint16 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapBE16(sample0); dst[1] = SDL_SwapBE16(sample1); dst[2] = SDL_SwapBE16(sample2); dst[3] = SDL_SwapBE16(sample3); dst += 4; sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint16 *target = ((const Uint16 *) cvt->buf) - 6; Uint16 sample5 = SDL_SwapBE16(src[5]); Uint16 sample4 = SDL_SwapBE16(src[4]); Uint16 sample3 = SDL_SwapBE16(src[3]); Uint16 sample2 = SDL_SwapBE16(src[2]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 last_sample5 = sample5; Uint16 last_sample4 = sample4; Uint16 last_sample3 = sample3; Uint16 last_sample2 = sample2; Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[5] = SDL_SwapBE16(sample5); dst[4] = SDL_SwapBE16(sample4); dst[3] = SDL_SwapBE16(sample3); dst[2] = SDL_SwapBE16(sample2); dst[1] = SDL_SwapBE16(sample1); dst[0] = SDL_SwapBE16(sample0); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample2 = SDL_SwapBE16(src[2]); Uint16 sample3 = SDL_SwapBE16(src[3]); Uint16 sample4 = SDL_SwapBE16(src[4]); Uint16 sample5 = SDL_SwapBE16(src[5]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; Uint16 last_sample2 = sample2; Uint16 last_sample3 = sample3; Uint16 last_sample4 = sample4; Uint16 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapBE16(sample0); dst[1] = SDL_SwapBE16(sample1); dst[2] = SDL_SwapBE16(sample2); dst[3] = SDL_SwapBE16(sample3); dst[4] = SDL_SwapBE16(sample4); dst[5] = SDL_SwapBE16(sample5); dst += 6; sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_U16MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint16 *target = ((const Uint16 *) cvt->buf) - 8; Uint16 sample7 = SDL_SwapBE16(src[7]); Uint16 sample6 = SDL_SwapBE16(src[6]); Uint16 sample5 = SDL_SwapBE16(src[5]); Uint16 sample4 = SDL_SwapBE16(src[4]); Uint16 sample3 = SDL_SwapBE16(src[3]); Uint16 sample2 = SDL_SwapBE16(src[2]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 last_sample7 = sample7; Uint16 last_sample6 = sample6; Uint16 last_sample5 = sample5; Uint16 last_sample4 = sample4; Uint16 last_sample3 = sample3; Uint16 last_sample2 = sample2; Uint16 last_sample1 = sample1; Uint16 last_sample0 = sample0; while (dst != target) { dst[7] = SDL_SwapBE16(sample7); dst[6] = SDL_SwapBE16(sample6); dst[5] = SDL_SwapBE16(sample5); dst[4] = SDL_SwapBE16(sample4); dst[3] = SDL_SwapBE16(sample3); dst[2] = SDL_SwapBE16(sample2); dst[1] = SDL_SwapBE16(sample1); dst[0] = SDL_SwapBE16(sample0); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Uint16) ((((Sint32) SDL_SwapBE16(src[7])) + ((Sint32) last_sample7)) >> 1); sample6 = (Uint16) ((((Sint32) SDL_SwapBE16(src[6])) + ((Sint32) last_sample6)) >> 1); sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_U16MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Uint16 sample0 = SDL_SwapBE16(src[0]); Uint16 sample1 = SDL_SwapBE16(src[1]); Uint16 sample2 = SDL_SwapBE16(src[2]); Uint16 sample3 = SDL_SwapBE16(src[3]); Uint16 sample4 = SDL_SwapBE16(src[4]); Uint16 sample5 = SDL_SwapBE16(src[5]); Uint16 sample6 = SDL_SwapBE16(src[6]); Uint16 sample7 = SDL_SwapBE16(src[7]); Uint16 last_sample0 = sample0; Uint16 last_sample1 = sample1; Uint16 last_sample2 = sample2; Uint16 last_sample3 = sample3; Uint16 last_sample4 = sample4; Uint16 last_sample5 = sample5; Uint16 last_sample6 = sample6; Uint16 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapBE16(sample0); dst[1] = SDL_SwapBE16(sample1); dst[2] = SDL_SwapBE16(sample2); dst[3] = SDL_SwapBE16(sample3); dst[4] = SDL_SwapBE16(sample4); dst[5] = SDL_SwapBE16(sample5); dst[6] = SDL_SwapBE16(sample6); dst[7] = SDL_SwapBE16(sample7); dst += 8; sample0 = (Uint16) ((((Sint32) SDL_SwapBE16(src[0])) + ((Sint32) last_sample0)) >> 1); sample1 = (Uint16) ((((Sint32) SDL_SwapBE16(src[1])) + ((Sint32) last_sample1)) >> 1); sample2 = (Uint16) ((((Sint32) SDL_SwapBE16(src[2])) + ((Sint32) last_sample2)) >> 1); sample3 = (Uint16) ((((Sint32) SDL_SwapBE16(src[3])) + ((Sint32) last_sample3)) >> 1); sample4 = (Uint16) ((((Sint32) SDL_SwapBE16(src[4])) + ((Sint32) last_sample4)) >> 1); sample5 = (Uint16) ((((Sint32) SDL_SwapBE16(src[5])) + ((Sint32) last_sample5)) >> 1); sample6 = (Uint16) ((((Sint32) SDL_SwapBE16(src[6])) + ((Sint32) last_sample6)) >> 1); sample7 = (Uint16) ((((Sint32) SDL_SwapBE16(src[7])) + ((Sint32) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint16 *target = ((const Sint16 *) cvt->buf) - 1; Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 last_sample0 = sample0; while (dst != target) { dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 32; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst++; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint16 *target = ((const Sint16 *) cvt->buf) - 2; Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst += 2; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint16 *target = ((const Sint16 *) cvt->buf) - 4; Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3])); Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 last_sample3 = sample3; Sint16 last_sample2 = sample2; Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[3] = ((Sint16) SDL_SwapBE16(sample3)); dst[2] = ((Sint16) SDL_SwapBE16(sample2)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2])); Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; Sint16 last_sample2 = sample2; Sint16 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[2] = ((Sint16) SDL_SwapBE16(sample2)); dst[3] = ((Sint16) SDL_SwapBE16(sample3)); dst += 4; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint16 *target = ((const Sint16 *) cvt->buf) - 6; Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5])); Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4])); Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3])); Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 last_sample5 = sample5; Sint16 last_sample4 = sample4; Sint16 last_sample3 = sample3; Sint16 last_sample2 = sample2; Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[5] = ((Sint16) SDL_SwapBE16(sample5)); dst[4] = ((Sint16) SDL_SwapBE16(sample4)); dst[3] = ((Sint16) SDL_SwapBE16(sample3)); dst[2] = ((Sint16) SDL_SwapBE16(sample2)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 192; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2])); Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3])); Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4])); Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; Sint16 last_sample2 = sample2; Sint16 last_sample3 = sample3; Sint16 last_sample4 = sample4; Sint16 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[2] = ((Sint16) SDL_SwapBE16(sample2)); dst[3] = ((Sint16) SDL_SwapBE16(sample3)); dst[4] = ((Sint16) SDL_SwapBE16(sample4)); dst[5] = ((Sint16) SDL_SwapBE16(sample5)); dst += 6; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S16MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint16 *target = ((const Sint16 *) cvt->buf) - 8; Sint16 sample7 = ((Sint16) SDL_SwapBE16(src[7])); Sint16 sample6 = ((Sint16) SDL_SwapBE16(src[6])); Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5])); Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4])); Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3])); Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 last_sample7 = sample7; Sint16 last_sample6 = sample6; Sint16 last_sample5 = sample5; Sint16 last_sample4 = sample4; Sint16 last_sample3 = sample3; Sint16 last_sample2 = sample2; Sint16 last_sample1 = sample1; Sint16 last_sample0 = sample0; while (dst != target) { dst[7] = ((Sint16) SDL_SwapBE16(sample7)); dst[6] = ((Sint16) SDL_SwapBE16(sample6)); dst[5] = ((Sint16) SDL_SwapBE16(sample5)); dst[4] = ((Sint16) SDL_SwapBE16(sample4)); dst[3] = ((Sint16) SDL_SwapBE16(sample3)); dst[2] = ((Sint16) SDL_SwapBE16(sample2)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[7]))) + ((Sint32) last_sample7)) >> 1); sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[6]))) + ((Sint32) last_sample6)) >> 1); sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S16MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint16 sample0 = ((Sint16) SDL_SwapBE16(src[0])); Sint16 sample1 = ((Sint16) SDL_SwapBE16(src[1])); Sint16 sample2 = ((Sint16) SDL_SwapBE16(src[2])); Sint16 sample3 = ((Sint16) SDL_SwapBE16(src[3])); Sint16 sample4 = ((Sint16) SDL_SwapBE16(src[4])); Sint16 sample5 = ((Sint16) SDL_SwapBE16(src[5])); Sint16 sample6 = ((Sint16) SDL_SwapBE16(src[6])); Sint16 sample7 = ((Sint16) SDL_SwapBE16(src[7])); Sint16 last_sample0 = sample0; Sint16 last_sample1 = sample1; Sint16 last_sample2 = sample2; Sint16 last_sample3 = sample3; Sint16 last_sample4 = sample4; Sint16 last_sample5 = sample5; Sint16 last_sample6 = sample6; Sint16 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint16) SDL_SwapBE16(sample0)); dst[1] = ((Sint16) SDL_SwapBE16(sample1)); dst[2] = ((Sint16) SDL_SwapBE16(sample2)); dst[3] = ((Sint16) SDL_SwapBE16(sample3)); dst[4] = ((Sint16) SDL_SwapBE16(sample4)); dst[5] = ((Sint16) SDL_SwapBE16(sample5)); dst[6] = ((Sint16) SDL_SwapBE16(sample6)); dst[7] = ((Sint16) SDL_SwapBE16(sample7)); dst += 8; sample0 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[0]))) + ((Sint32) last_sample0)) >> 1); sample1 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[1]))) + ((Sint32) last_sample1)) >> 1); sample2 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[2]))) + ((Sint32) last_sample2)) >> 1); sample3 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[3]))) + ((Sint32) last_sample3)) >> 1); sample4 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[4]))) + ((Sint32) last_sample4)) >> 1); sample5 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[5]))) + ((Sint32) last_sample5)) >> 1); sample6 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[6]))) + ((Sint32) last_sample6)) >> 1); sample7 = (Sint16) ((((Sint32) ((Sint16) SDL_SwapBE16(src[7]))) + ((Sint32) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint32 *target = ((const Sint32 *) cvt->buf) - 1; Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 last_sample0 = sample0; while (dst != target) { dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst++; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint32 *target = ((const Sint32 *) cvt->buf) - 2; Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst += 2; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint32 *target = ((const Sint32 *) cvt->buf) - 4; Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3])); Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 last_sample3 = sample3; Sint32 last_sample2 = sample2; Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[3] = ((Sint32) SDL_SwapLE32(sample3)); dst[2] = ((Sint32) SDL_SwapLE32(sample2)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2])); Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; Sint32 last_sample2 = sample2; Sint32 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[2] = ((Sint32) SDL_SwapLE32(sample2)); dst[3] = ((Sint32) SDL_SwapLE32(sample3)); dst += 4; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint32 *target = ((const Sint32 *) cvt->buf) - 6; Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5])); Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4])); Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3])); Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 last_sample5 = sample5; Sint32 last_sample4 = sample4; Sint32 last_sample3 = sample3; Sint32 last_sample2 = sample2; Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[5] = ((Sint32) SDL_SwapLE32(sample5)); dst[4] = ((Sint32) SDL_SwapLE32(sample4)); dst[3] = ((Sint32) SDL_SwapLE32(sample3)); dst[2] = ((Sint32) SDL_SwapLE32(sample2)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2])); Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3])); Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4])); Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; Sint32 last_sample2 = sample2; Sint32 last_sample3 = sample3; Sint32 last_sample4 = sample4; Sint32 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[2] = ((Sint32) SDL_SwapLE32(sample2)); dst[3] = ((Sint32) SDL_SwapLE32(sample3)); dst[4] = ((Sint32) SDL_SwapLE32(sample4)); dst[5] = ((Sint32) SDL_SwapLE32(sample5)); dst += 6; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint32 *target = ((const Sint32 *) cvt->buf) - 8; Sint32 sample7 = ((Sint32) SDL_SwapLE32(src[7])); Sint32 sample6 = ((Sint32) SDL_SwapLE32(src[6])); Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5])); Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4])); Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3])); Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 last_sample7 = sample7; Sint32 last_sample6 = sample6; Sint32 last_sample5 = sample5; Sint32 last_sample4 = sample4; Sint32 last_sample3 = sample3; Sint32 last_sample2 = sample2; Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[7] = ((Sint32) SDL_SwapLE32(sample7)); dst[6] = ((Sint32) SDL_SwapLE32(sample6)); dst[5] = ((Sint32) SDL_SwapLE32(sample5)); dst[4] = ((Sint32) SDL_SwapLE32(sample4)); dst[3] = ((Sint32) SDL_SwapLE32(sample3)); dst[2] = ((Sint32) SDL_SwapLE32(sample2)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[7]))) + ((Sint64) last_sample7)) >> 1); sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[6]))) + ((Sint64) last_sample6)) >> 1); sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapLE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapLE32(src[1])); Sint32 sample2 = ((Sint32) SDL_SwapLE32(src[2])); Sint32 sample3 = ((Sint32) SDL_SwapLE32(src[3])); Sint32 sample4 = ((Sint32) SDL_SwapLE32(src[4])); Sint32 sample5 = ((Sint32) SDL_SwapLE32(src[5])); Sint32 sample6 = ((Sint32) SDL_SwapLE32(src[6])); Sint32 sample7 = ((Sint32) SDL_SwapLE32(src[7])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; Sint32 last_sample2 = sample2; Sint32 last_sample3 = sample3; Sint32 last_sample4 = sample4; Sint32 last_sample5 = sample5; Sint32 last_sample6 = sample6; Sint32 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapLE32(sample0)); dst[1] = ((Sint32) SDL_SwapLE32(sample1)); dst[2] = ((Sint32) SDL_SwapLE32(sample2)); dst[3] = ((Sint32) SDL_SwapLE32(sample3)); dst[4] = ((Sint32) SDL_SwapLE32(sample4)); dst[5] = ((Sint32) SDL_SwapLE32(sample5)); dst[6] = ((Sint32) SDL_SwapLE32(sample6)); dst[7] = ((Sint32) SDL_SwapLE32(sample7)); dst += 8; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[5]))) + ((Sint64) last_sample5)) >> 1); sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[6]))) + ((Sint64) last_sample6)) >> 1); sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapLE32(src[7]))) + ((Sint64) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint32 *target = ((const Sint32 *) cvt->buf) - 1; Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 last_sample0 = sample0; while (dst != target) { dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst++; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint32 *target = ((const Sint32 *) cvt->buf) - 2; Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst += 2; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint32 *target = ((const Sint32 *) cvt->buf) - 4; Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3])); Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 last_sample3 = sample3; Sint32 last_sample2 = sample2; Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[3] = ((Sint32) SDL_SwapBE32(sample3)); dst[2] = ((Sint32) SDL_SwapBE32(sample2)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2])); Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; Sint32 last_sample2 = sample2; Sint32 last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[2] = ((Sint32) SDL_SwapBE32(sample2)); dst[3] = ((Sint32) SDL_SwapBE32(sample3)); dst += 4; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint32 *target = ((const Sint32 *) cvt->buf) - 6; Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5])); Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4])); Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3])); Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 last_sample5 = sample5; Sint32 last_sample4 = sample4; Sint32 last_sample3 = sample3; Sint32 last_sample2 = sample2; Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[5] = ((Sint32) SDL_SwapBE32(sample5)); dst[4] = ((Sint32) SDL_SwapBE32(sample4)); dst[3] = ((Sint32) SDL_SwapBE32(sample3)); dst[2] = ((Sint32) SDL_SwapBE32(sample2)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2])); Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3])); Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4])); Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; Sint32 last_sample2 = sample2; Sint32 last_sample3 = sample3; Sint32 last_sample4 = sample4; Sint32 last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[2] = ((Sint32) SDL_SwapBE32(sample2)); dst[3] = ((Sint32) SDL_SwapBE32(sample3)); dst[4] = ((Sint32) SDL_SwapBE32(sample4)); dst[5] = ((Sint32) SDL_SwapBE32(sample5)); dst += 6; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_S32MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint32 *target = ((const Sint32 *) cvt->buf) - 8; Sint32 sample7 = ((Sint32) SDL_SwapBE32(src[7])); Sint32 sample6 = ((Sint32) SDL_SwapBE32(src[6])); Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5])); Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4])); Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3])); Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 last_sample7 = sample7; Sint32 last_sample6 = sample6; Sint32 last_sample5 = sample5; Sint32 last_sample4 = sample4; Sint32 last_sample3 = sample3; Sint32 last_sample2 = sample2; Sint32 last_sample1 = sample1; Sint32 last_sample0 = sample0; while (dst != target) { dst[7] = ((Sint32) SDL_SwapBE32(sample7)); dst[6] = ((Sint32) SDL_SwapBE32(sample6)); dst[5] = ((Sint32) SDL_SwapBE32(sample5)); dst[4] = ((Sint32) SDL_SwapBE32(sample4)); dst[3] = ((Sint32) SDL_SwapBE32(sample3)); dst[2] = ((Sint32) SDL_SwapBE32(sample2)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[7]))) + ((Sint64) last_sample7)) >> 1); sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[6]))) + ((Sint64) last_sample6)) >> 1); sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_S32MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint32 sample0 = ((Sint32) SDL_SwapBE32(src[0])); Sint32 sample1 = ((Sint32) SDL_SwapBE32(src[1])); Sint32 sample2 = ((Sint32) SDL_SwapBE32(src[2])); Sint32 sample3 = ((Sint32) SDL_SwapBE32(src[3])); Sint32 sample4 = ((Sint32) SDL_SwapBE32(src[4])); Sint32 sample5 = ((Sint32) SDL_SwapBE32(src[5])); Sint32 sample6 = ((Sint32) SDL_SwapBE32(src[6])); Sint32 sample7 = ((Sint32) SDL_SwapBE32(src[7])); Sint32 last_sample0 = sample0; Sint32 last_sample1 = sample1; Sint32 last_sample2 = sample2; Sint32 last_sample3 = sample3; Sint32 last_sample4 = sample4; Sint32 last_sample5 = sample5; Sint32 last_sample6 = sample6; Sint32 last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = ((Sint32) SDL_SwapBE32(sample0)); dst[1] = ((Sint32) SDL_SwapBE32(sample1)); dst[2] = ((Sint32) SDL_SwapBE32(sample2)); dst[3] = ((Sint32) SDL_SwapBE32(sample3)); dst[4] = ((Sint32) SDL_SwapBE32(sample4)); dst[5] = ((Sint32) SDL_SwapBE32(sample5)); dst[6] = ((Sint32) SDL_SwapBE32(sample6)); dst[7] = ((Sint32) SDL_SwapBE32(sample7)); dst += 8; sample0 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[0]))) + ((Sint64) last_sample0)) >> 1); sample1 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[1]))) + ((Sint64) last_sample1)) >> 1); sample2 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[2]))) + ((Sint64) last_sample2)) >> 1); sample3 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[3]))) + ((Sint64) last_sample3)) >> 1); sample4 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[4]))) + ((Sint64) last_sample4)) >> 1); sample5 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[5]))) + ((Sint64) last_sample5)) >> 1); sample6 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[6]))) + ((Sint64) last_sample6)) >> 1); sample7 = (Sint32) ((((Sint64) ((Sint32) SDL_SwapBE32(src[7]))) + ((Sint64) last_sample7)) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 1; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1; const float *target = ((const float *) cvt->buf) - 1; float sample0 = SDL_SwapFloatLE(src[0]); float last_sample0 = sample0; while (dst != target) { dst[0] = SDL_SwapFloatLE(sample0); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatLE(src[0]); float last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatLE(sample0); dst++; sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 2; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2; const float *target = ((const float *) cvt->buf) - 2; float sample1 = SDL_SwapFloatLE(src[1]); float sample0 = SDL_SwapFloatLE(src[0]); float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[1] = SDL_SwapFloatLE(sample1); dst[0] = SDL_SwapFloatLE(sample0); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatLE(src[0]); float sample1 = SDL_SwapFloatLE(src[1]); float last_sample0 = sample0; float last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatLE(sample0); dst[1] = SDL_SwapFloatLE(sample1); dst += 2; sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 4; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4; const float *target = ((const float *) cvt->buf) - 4; float sample3 = SDL_SwapFloatLE(src[3]); float sample2 = SDL_SwapFloatLE(src[2]); float sample1 = SDL_SwapFloatLE(src[1]); float sample0 = SDL_SwapFloatLE(src[0]); float last_sample3 = sample3; float last_sample2 = sample2; float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[3] = SDL_SwapFloatLE(sample3); dst[2] = SDL_SwapFloatLE(sample2); dst[1] = SDL_SwapFloatLE(sample1); dst[0] = SDL_SwapFloatLE(sample0); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatLE(src[0]); float sample1 = SDL_SwapFloatLE(src[1]); float sample2 = SDL_SwapFloatLE(src[2]); float sample3 = SDL_SwapFloatLE(src[3]); float last_sample0 = sample0; float last_sample1 = sample1; float last_sample2 = sample2; float last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatLE(sample0); dst[1] = SDL_SwapFloatLE(sample1); dst[2] = SDL_SwapFloatLE(sample2); dst[3] = SDL_SwapFloatLE(sample3); dst += 4; sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 6; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6; const float *target = ((const float *) cvt->buf) - 6; float sample5 = SDL_SwapFloatLE(src[5]); float sample4 = SDL_SwapFloatLE(src[4]); float sample3 = SDL_SwapFloatLE(src[3]); float sample2 = SDL_SwapFloatLE(src[2]); float sample1 = SDL_SwapFloatLE(src[1]); float sample0 = SDL_SwapFloatLE(src[0]); float last_sample5 = sample5; float last_sample4 = sample4; float last_sample3 = sample3; float last_sample2 = sample2; float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[5] = SDL_SwapFloatLE(sample5); dst[4] = SDL_SwapFloatLE(sample4); dst[3] = SDL_SwapFloatLE(sample3); dst[2] = SDL_SwapFloatLE(sample2); dst[1] = SDL_SwapFloatLE(sample1); dst[0] = SDL_SwapFloatLE(sample0); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatLE(src[0]); float sample1 = SDL_SwapFloatLE(src[1]); float sample2 = SDL_SwapFloatLE(src[2]); float sample3 = SDL_SwapFloatLE(src[3]); float sample4 = SDL_SwapFloatLE(src[4]); float sample5 = SDL_SwapFloatLE(src[5]); float last_sample0 = sample0; float last_sample1 = sample1; float last_sample2 = sample2; float last_sample3 = sample3; float last_sample4 = sample4; float last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatLE(sample0); dst[1] = SDL_SwapFloatLE(sample1); dst[2] = SDL_SwapFloatLE(sample2); dst[3] = SDL_SwapFloatLE(sample3); dst[4] = SDL_SwapFloatLE(sample4); dst[5] = SDL_SwapFloatLE(sample5); dst += 6; sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5); sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 8; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8; const float *target = ((const float *) cvt->buf) - 8; float sample7 = SDL_SwapFloatLE(src[7]); float sample6 = SDL_SwapFloatLE(src[6]); float sample5 = SDL_SwapFloatLE(src[5]); float sample4 = SDL_SwapFloatLE(src[4]); float sample3 = SDL_SwapFloatLE(src[3]); float sample2 = SDL_SwapFloatLE(src[2]); float sample1 = SDL_SwapFloatLE(src[1]); float sample0 = SDL_SwapFloatLE(src[0]); float last_sample7 = sample7; float last_sample6 = sample6; float last_sample5 = sample5; float last_sample4 = sample4; float last_sample3 = sample3; float last_sample2 = sample2; float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[7] = SDL_SwapFloatLE(sample7); dst[6] = SDL_SwapFloatLE(sample6); dst[5] = SDL_SwapFloatLE(sample5); dst[4] = SDL_SwapFloatLE(sample4); dst[3] = SDL_SwapFloatLE(sample3); dst[2] = SDL_SwapFloatLE(sample2); dst[1] = SDL_SwapFloatLE(sample1); dst[0] = SDL_SwapFloatLE(sample0); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (float) ((((double) SDL_SwapFloatLE(src[7])) + ((double) last_sample7)) * 0.5); sample6 = (float) ((((double) SDL_SwapFloatLE(src[6])) + ((double) last_sample6)) * 0.5); sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32LSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatLE(src[0]); float sample1 = SDL_SwapFloatLE(src[1]); float sample2 = SDL_SwapFloatLE(src[2]); float sample3 = SDL_SwapFloatLE(src[3]); float sample4 = SDL_SwapFloatLE(src[4]); float sample5 = SDL_SwapFloatLE(src[5]); float sample6 = SDL_SwapFloatLE(src[6]); float sample7 = SDL_SwapFloatLE(src[7]); float last_sample0 = sample0; float last_sample1 = sample1; float last_sample2 = sample2; float last_sample3 = sample3; float last_sample4 = sample4; float last_sample5 = sample5; float last_sample6 = sample6; float last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatLE(sample0); dst[1] = SDL_SwapFloatLE(sample1); dst[2] = SDL_SwapFloatLE(sample2); dst[3] = SDL_SwapFloatLE(sample3); dst[4] = SDL_SwapFloatLE(sample4); dst[5] = SDL_SwapFloatLE(sample5); dst[6] = SDL_SwapFloatLE(sample6); dst[7] = SDL_SwapFloatLE(sample7); dst += 8; sample0 = (float) ((((double) SDL_SwapFloatLE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatLE(src[1])) + ((double) last_sample1)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatLE(src[2])) + ((double) last_sample2)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatLE(src[3])) + ((double) last_sample3)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatLE(src[4])) + ((double) last_sample4)) * 0.5); sample5 = (float) ((((double) SDL_SwapFloatLE(src[5])) + ((double) last_sample5)) * 0.5); sample6 = (float) ((((double) SDL_SwapFloatLE(src[6])) + ((double) last_sample6)) * 0.5); sample7 = (float) ((((double) SDL_SwapFloatLE(src[7])) + ((double) last_sample7)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 1; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1; const float *target = ((const float *) cvt->buf) - 1; float sample0 = SDL_SwapFloatBE(src[0]); float last_sample0 = sample0; while (dst != target) { dst[0] = SDL_SwapFloatBE(sample0); dst--; eps += srcsize; if ((eps << 1) >= dstsize) { src--; sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_1c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 1 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 64; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatBE(src[0]); float last_sample0 = sample0; while (dst != target) { src++; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatBE(sample0); dst++; sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); last_sample0 = sample0; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 2; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2; const float *target = ((const float *) cvt->buf) - 2; float sample1 = SDL_SwapFloatBE(src[1]); float sample0 = SDL_SwapFloatBE(src[0]); float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[1] = SDL_SwapFloatBE(sample1); dst[0] = SDL_SwapFloatBE(sample0); dst -= 2; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 2; sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_2c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 2 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 128; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatBE(src[0]); float sample1 = SDL_SwapFloatBE(src[1]); float last_sample0 = sample0; float last_sample1 = sample1; while (dst != target) { src += 2; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatBE(sample0); dst[1] = SDL_SwapFloatBE(sample1); dst += 2; sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 4; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4; const float *target = ((const float *) cvt->buf) - 4; float sample3 = SDL_SwapFloatBE(src[3]); float sample2 = SDL_SwapFloatBE(src[2]); float sample1 = SDL_SwapFloatBE(src[1]); float sample0 = SDL_SwapFloatBE(src[0]); float last_sample3 = sample3; float last_sample2 = sample2; float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[3] = SDL_SwapFloatBE(sample3); dst[2] = SDL_SwapFloatBE(sample2); dst[1] = SDL_SwapFloatBE(sample1); dst[0] = SDL_SwapFloatBE(sample0); dst -= 4; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 4; sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_4c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 4 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 256; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatBE(src[0]); float sample1 = SDL_SwapFloatBE(src[1]); float sample2 = SDL_SwapFloatBE(src[2]); float sample3 = SDL_SwapFloatBE(src[3]); float last_sample0 = sample0; float last_sample1 = sample1; float last_sample2 = sample2; float last_sample3 = sample3; while (dst != target) { src += 4; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatBE(sample0); dst[1] = SDL_SwapFloatBE(sample1); dst[2] = SDL_SwapFloatBE(sample2); dst[3] = SDL_SwapFloatBE(sample3); dst += 4; sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 6; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6; const float *target = ((const float *) cvt->buf) - 6; float sample5 = SDL_SwapFloatBE(src[5]); float sample4 = SDL_SwapFloatBE(src[4]); float sample3 = SDL_SwapFloatBE(src[3]); float sample2 = SDL_SwapFloatBE(src[2]); float sample1 = SDL_SwapFloatBE(src[1]); float sample0 = SDL_SwapFloatBE(src[0]); float last_sample5 = sample5; float last_sample4 = sample4; float last_sample3 = sample3; float last_sample2 = sample2; float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[5] = SDL_SwapFloatBE(sample5); dst[4] = SDL_SwapFloatBE(sample4); dst[3] = SDL_SwapFloatBE(sample3); dst[2] = SDL_SwapFloatBE(sample2); dst[1] = SDL_SwapFloatBE(sample1); dst[0] = SDL_SwapFloatBE(sample0); dst -= 6; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 6; sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_6c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 6 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 384; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatBE(src[0]); float sample1 = SDL_SwapFloatBE(src[1]); float sample2 = SDL_SwapFloatBE(src[2]); float sample3 = SDL_SwapFloatBE(src[3]); float sample4 = SDL_SwapFloatBE(src[4]); float sample5 = SDL_SwapFloatBE(src[5]); float last_sample0 = sample0; float last_sample1 = sample1; float last_sample2 = sample2; float last_sample3 = sample3; float last_sample4 = sample4; float last_sample5 = sample5; while (dst != target) { src += 6; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatBE(sample0); dst[1] = SDL_SwapFloatBE(sample1); dst[2] = SDL_SwapFloatBE(sample2); dst[3] = SDL_SwapFloatBE(sample3); dst[4] = SDL_SwapFloatBE(sample4); dst[5] = SDL_SwapFloatBE(sample5); dst += 6; sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5); sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample arbitrary (x%f) AUDIO_F32MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = ((float *) (cvt->buf + dstsize)) - 8; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8; const float *target = ((const float *) cvt->buf) - 8; float sample7 = SDL_SwapFloatBE(src[7]); float sample6 = SDL_SwapFloatBE(src[6]); float sample5 = SDL_SwapFloatBE(src[5]); float sample4 = SDL_SwapFloatBE(src[4]); float sample3 = SDL_SwapFloatBE(src[3]); float sample2 = SDL_SwapFloatBE(src[2]); float sample1 = SDL_SwapFloatBE(src[1]); float sample0 = SDL_SwapFloatBE(src[0]); float last_sample7 = sample7; float last_sample6 = sample6; float last_sample5 = sample5; float last_sample4 = sample4; float last_sample3 = sample3; float last_sample2 = sample2; float last_sample1 = sample1; float last_sample0 = sample0; while (dst != target) { dst[7] = SDL_SwapFloatBE(sample7); dst[6] = SDL_SwapFloatBE(sample6); dst[5] = SDL_SwapFloatBE(sample5); dst[4] = SDL_SwapFloatBE(sample4); dst[3] = SDL_SwapFloatBE(sample3); dst[2] = SDL_SwapFloatBE(sample2); dst[1] = SDL_SwapFloatBE(sample1); dst[0] = SDL_SwapFloatBE(sample0); dst -= 8; eps += srcsize; if ((eps << 1) >= dstsize) { src -= 8; sample7 = (float) ((((double) SDL_SwapFloatBE(src[7])) + ((double) last_sample7)) * 0.5); sample6 = (float) ((((double) SDL_SwapFloatBE(src[6])) + ((double) last_sample6)) * 0.5); sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; eps -= dstsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_8c(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample arbitrary (x%f) AUDIO_F32MSB, 8 channels.\n", cvt->rate_incr); #endif const int srcsize = cvt->len_cvt - 512; const int dstsize = (int) (((double)cvt->len_cvt) * cvt->rate_incr); register int eps = 0; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); float sample0 = SDL_SwapFloatBE(src[0]); float sample1 = SDL_SwapFloatBE(src[1]); float sample2 = SDL_SwapFloatBE(src[2]); float sample3 = SDL_SwapFloatBE(src[3]); float sample4 = SDL_SwapFloatBE(src[4]); float sample5 = SDL_SwapFloatBE(src[5]); float sample6 = SDL_SwapFloatBE(src[6]); float sample7 = SDL_SwapFloatBE(src[7]); float last_sample0 = sample0; float last_sample1 = sample1; float last_sample2 = sample2; float last_sample3 = sample3; float last_sample4 = sample4; float last_sample5 = sample5; float last_sample6 = sample6; float last_sample7 = sample7; while (dst != target) { src += 8; eps += dstsize; if ((eps << 1) >= srcsize) { dst[0] = SDL_SwapFloatBE(sample0); dst[1] = SDL_SwapFloatBE(sample1); dst[2] = SDL_SwapFloatBE(sample2); dst[3] = SDL_SwapFloatBE(sample3); dst[4] = SDL_SwapFloatBE(sample4); dst[5] = SDL_SwapFloatBE(sample5); dst[6] = SDL_SwapFloatBE(sample6); dst[7] = SDL_SwapFloatBE(sample7); dst += 8; sample0 = (float) ((((double) SDL_SwapFloatBE(src[0])) + ((double) last_sample0)) * 0.5); sample1 = (float) ((((double) SDL_SwapFloatBE(src[1])) + ((double) last_sample1)) * 0.5); sample2 = (float) ((((double) SDL_SwapFloatBE(src[2])) + ((double) last_sample2)) * 0.5); sample3 = (float) ((((double) SDL_SwapFloatBE(src[3])) + ((double) last_sample3)) * 0.5); sample4 = (float) ((((double) SDL_SwapFloatBE(src[4])) + ((double) last_sample4)) * 0.5); sample5 = (float) ((((double) SDL_SwapFloatBE(src[5])) + ((double) last_sample5)) * 0.5); sample6 = (float) ((((double) SDL_SwapFloatBE(src[6])) + ((double) last_sample6)) * 0.5); sample7 = (float) ((((double) SDL_SwapFloatBE(src[7])) + ((double) last_sample7)) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; eps -= srcsize; } } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } #if !LESS_RESAMPLERS static void SDLCALL SDL_Upsample_U8_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 1; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint8 *target = ((const Uint8 *) cvt->buf) - 1; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample0 = (Sint16) src[0]; src--; dst[1] = (Uint8) ((sample0 + last_sample0) >> 1); dst[0] = (Uint8) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; src += 2; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 1; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint8 *target = ((const Uint8 *) cvt->buf) - 1; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample0 = (Sint16) src[0]; src--; dst[3] = (Uint8) sample0; dst[2] = (Uint8) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Uint8) ((sample0 + last_sample0) >> 1); dst[0] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; src += 4; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 2; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint8 *target = ((const Uint8 *) cvt->buf) - 2; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 2; dst[3] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) sample1; dst[0] = (Uint8) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; src += 4; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 2; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint8 *target = ((const Uint8 *) cvt->buf) - 2; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 2; dst[7] = (Uint8) sample1; dst[6] = (Uint8) sample0; dst[5] = (Uint8) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Uint8) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; src += 8; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 4; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint8 *target = ((const Uint8 *) cvt->buf) - 4; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 4; dst[7] = (Uint8) ((sample3 + last_sample3) >> 1); dst[6] = (Uint8) ((sample2 + last_sample2) >> 1); dst[5] = (Uint8) ((sample1 + last_sample1) >> 1); dst[4] = (Uint8) ((sample0 + last_sample0) >> 1); dst[3] = (Uint8) sample3; dst[2] = (Uint8) sample2; dst[1] = (Uint8) sample1; dst[0] = (Uint8) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample3 = (Sint16) src[3]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample3 = (Sint16) src[3]; src += 8; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample2 + last_sample2) >> 1); dst[3] = (Uint8) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 4; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint8 *target = ((const Uint8 *) cvt->buf) - 4; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 4; dst[15] = (Uint8) sample3; dst[14] = (Uint8) sample2; dst[13] = (Uint8) sample1; dst[12] = (Uint8) sample0; dst[11] = (Uint8) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Uint8) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Uint8) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Uint8) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Uint8) ((sample3 + last_sample3) >> 1); dst[6] = (Uint8) ((sample2 + last_sample2) >> 1); dst[5] = (Uint8) ((sample1 + last_sample1) >> 1); dst[4] = (Uint8) ((sample0 + last_sample0) >> 1); dst[3] = (Uint8) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint8) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample3 = (Sint16) src[3]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample3 = (Sint16) src[3]; src += 16; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample2 + last_sample2) >> 1); dst[3] = (Uint8) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 6; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint8 *target = ((const Uint8 *) cvt->buf) - 6; Sint16 last_sample5 = (Sint16) src[5]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample5 = (Sint16) src[5]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 6; dst[11] = (Uint8) ((sample5 + last_sample5) >> 1); dst[10] = (Uint8) ((sample4 + last_sample4) >> 1); dst[9] = (Uint8) ((sample3 + last_sample3) >> 1); dst[8] = (Uint8) ((sample2 + last_sample2) >> 1); dst[7] = (Uint8) ((sample1 + last_sample1) >> 1); dst[6] = (Uint8) ((sample0 + last_sample0) >> 1); dst[5] = (Uint8) sample5; dst[4] = (Uint8) sample4; dst[3] = (Uint8) sample3; dst[2] = (Uint8) sample2; dst[1] = (Uint8) sample1; dst[0] = (Uint8) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample5 = (Sint16) src[5]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample5 = (Sint16) src[5]; src += 12; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample2 + last_sample2) >> 1); dst[3] = (Uint8) ((sample3 + last_sample3) >> 1); dst[4] = (Uint8) ((sample4 + last_sample4) >> 1); dst[5] = (Uint8) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 6; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint8 *target = ((const Uint8 *) cvt->buf) - 6; Sint16 last_sample5 = (Sint16) src[5]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample5 = (Sint16) src[5]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 6; dst[23] = (Uint8) sample5; dst[22] = (Uint8) sample4; dst[21] = (Uint8) sample3; dst[20] = (Uint8) sample2; dst[19] = (Uint8) sample1; dst[18] = (Uint8) sample0; dst[17] = (Uint8) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Uint8) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Uint8) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Uint8) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Uint8) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Uint8) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Uint8) ((sample5 + last_sample5) >> 1); dst[10] = (Uint8) ((sample4 + last_sample4) >> 1); dst[9] = (Uint8) ((sample3 + last_sample3) >> 1); dst[8] = (Uint8) ((sample2 + last_sample2) >> 1); dst[7] = (Uint8) ((sample1 + last_sample1) >> 1); dst[6] = (Uint8) ((sample0 + last_sample0) >> 1); dst[5] = (Uint8) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Uint8) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Uint8) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint8) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample5 = (Sint16) src[5]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample5 = (Sint16) src[5]; src += 24; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample2 + last_sample2) >> 1); dst[3] = (Uint8) ((sample3 + last_sample3) >> 1); dst[4] = (Uint8) ((sample4 + last_sample4) >> 1); dst[5] = (Uint8) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 8; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint8 *target = ((const Uint8 *) cvt->buf) - 8; Sint16 last_sample7 = (Sint16) src[7]; Sint16 last_sample6 = (Sint16) src[6]; Sint16 last_sample5 = (Sint16) src[5]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample7 = (Sint16) src[7]; const Sint16 sample6 = (Sint16) src[6]; const Sint16 sample5 = (Sint16) src[5]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 8; dst[15] = (Uint8) ((sample7 + last_sample7) >> 1); dst[14] = (Uint8) ((sample6 + last_sample6) >> 1); dst[13] = (Uint8) ((sample5 + last_sample5) >> 1); dst[12] = (Uint8) ((sample4 + last_sample4) >> 1); dst[11] = (Uint8) ((sample3 + last_sample3) >> 1); dst[10] = (Uint8) ((sample2 + last_sample2) >> 1); dst[9] = (Uint8) ((sample1 + last_sample1) >> 1); dst[8] = (Uint8) ((sample0 + last_sample0) >> 1); dst[7] = (Uint8) sample7; dst[6] = (Uint8) sample6; dst[5] = (Uint8) sample5; dst[4] = (Uint8) sample4; dst[3] = (Uint8) sample3; dst[2] = (Uint8) sample2; dst[1] = (Uint8) sample1; dst[0] = (Uint8) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample5 = (Sint16) src[5]; Sint16 last_sample6 = (Sint16) src[6]; Sint16 last_sample7 = (Sint16) src[7]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample5 = (Sint16) src[5]; const Sint16 sample6 = (Sint16) src[6]; const Sint16 sample7 = (Sint16) src[7]; src += 16; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample2 + last_sample2) >> 1); dst[3] = (Uint8) ((sample3 + last_sample3) >> 1); dst[4] = (Uint8) ((sample4 + last_sample4) >> 1); dst[5] = (Uint8) ((sample5 + last_sample5) >> 1); dst[6] = (Uint8) ((sample6 + last_sample6) >> 1); dst[7] = (Uint8) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U8_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint8 *dst = ((Uint8 *) (cvt->buf + dstsize)) - 8; const Uint8 *src = ((Uint8 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint8 *target = ((const Uint8 *) cvt->buf) - 8; Sint16 last_sample7 = (Sint16) src[7]; Sint16 last_sample6 = (Sint16) src[6]; Sint16 last_sample5 = (Sint16) src[5]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample0 = (Sint16) src[0]; while (dst > target) { const Sint16 sample7 = (Sint16) src[7]; const Sint16 sample6 = (Sint16) src[6]; const Sint16 sample5 = (Sint16) src[5]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample0 = (Sint16) src[0]; src -= 8; dst[31] = (Uint8) sample7; dst[30] = (Uint8) sample6; dst[29] = (Uint8) sample5; dst[28] = (Uint8) sample4; dst[27] = (Uint8) sample3; dst[26] = (Uint8) sample2; dst[25] = (Uint8) sample1; dst[24] = (Uint8) sample0; dst[23] = (Uint8) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Uint8) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Uint8) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Uint8) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Uint8) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Uint8) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Uint8) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Uint8) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Uint8) ((sample7 + last_sample7) >> 1); dst[14] = (Uint8) ((sample6 + last_sample6) >> 1); dst[13] = (Uint8) ((sample5 + last_sample5) >> 1); dst[12] = (Uint8) ((sample4 + last_sample4) >> 1); dst[11] = (Uint8) ((sample3 + last_sample3) >> 1); dst[10] = (Uint8) ((sample2 + last_sample2) >> 1); dst[9] = (Uint8) ((sample1 + last_sample1) >> 1); dst[8] = (Uint8) ((sample0 + last_sample0) >> 1); dst[7] = (Uint8) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Uint8) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Uint8) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Uint8) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Uint8) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint8) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U8_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint8 *dst = (Uint8 *) cvt->buf; const Uint8 *src = (Uint8 *) cvt->buf; const Uint8 *target = (const Uint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) src[0]; Sint16 last_sample1 = (Sint16) src[1]; Sint16 last_sample2 = (Sint16) src[2]; Sint16 last_sample3 = (Sint16) src[3]; Sint16 last_sample4 = (Sint16) src[4]; Sint16 last_sample5 = (Sint16) src[5]; Sint16 last_sample6 = (Sint16) src[6]; Sint16 last_sample7 = (Sint16) src[7]; while (dst < target) { const Sint16 sample0 = (Sint16) src[0]; const Sint16 sample1 = (Sint16) src[1]; const Sint16 sample2 = (Sint16) src[2]; const Sint16 sample3 = (Sint16) src[3]; const Sint16 sample4 = (Sint16) src[4]; const Sint16 sample5 = (Sint16) src[5]; const Sint16 sample6 = (Sint16) src[6]; const Sint16 sample7 = (Sint16) src[7]; src += 32; dst[0] = (Uint8) ((sample0 + last_sample0) >> 1); dst[1] = (Uint8) ((sample1 + last_sample1) >> 1); dst[2] = (Uint8) ((sample2 + last_sample2) >> 1); dst[3] = (Uint8) ((sample3 + last_sample3) >> 1); dst[4] = (Uint8) ((sample4 + last_sample4) >> 1); dst[5] = (Uint8) ((sample5 + last_sample5) >> 1); dst[6] = (Uint8) ((sample6 + last_sample6) >> 1); dst[7] = (Uint8) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 1; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint8 *target = ((const Sint8 *) cvt->buf) - 1; Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src--; dst[1] = (Sint8) ((sample0 + last_sample0) >> 1); dst[0] = (Sint8) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src += 2; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 1; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint8 *target = ((const Sint8 *) cvt->buf) - 1; Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src--; dst[3] = (Sint8) sample0; dst[2] = (Sint8) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Sint8) ((sample0 + last_sample0) >> 1); dst[0] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S8, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src += 4; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 2; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint8 *target = ((const Sint8 *) cvt->buf) - 2; Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 2; dst[3] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) sample1; dst[0] = (Sint8) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); src += 4; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 2; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint8 *target = ((const Sint8 *) cvt->buf) - 2; Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 2; dst[7] = (Sint8) sample1; dst[6] = (Sint8) sample0; dst[5] = (Sint8) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Sint8) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S8, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); src += 8; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 4; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint8 *target = ((const Sint8 *) cvt->buf) - 4; Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 4; dst[7] = (Sint8) ((sample3 + last_sample3) >> 1); dst[6] = (Sint8) ((sample2 + last_sample2) >> 1); dst[5] = (Sint8) ((sample1 + last_sample1) >> 1); dst[4] = (Sint8) ((sample0 + last_sample0) >> 1); dst[3] = (Sint8) sample3; dst[2] = (Sint8) sample2; dst[1] = (Sint8) sample1; dst[0] = (Sint8) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); src += 8; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample2 + last_sample2) >> 1); dst[3] = (Sint8) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 4; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint8 *target = ((const Sint8 *) cvt->buf) - 4; Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 4; dst[15] = (Sint8) sample3; dst[14] = (Sint8) sample2; dst[13] = (Sint8) sample1; dst[12] = (Sint8) sample0; dst[11] = (Sint8) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Sint8) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Sint8) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Sint8) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Sint8) ((sample3 + last_sample3) >> 1); dst[6] = (Sint8) ((sample2 + last_sample2) >> 1); dst[5] = (Sint8) ((sample1 + last_sample1) >> 1); dst[4] = (Sint8) ((sample0 + last_sample0) >> 1); dst[3] = (Sint8) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint8) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S8, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); src += 16; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample2 + last_sample2) >> 1); dst[3] = (Sint8) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 6; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint8 *target = ((const Sint8 *) cvt->buf) - 6; Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample5 = (Sint16) ((Sint8) src[5]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 6; dst[11] = (Sint8) ((sample5 + last_sample5) >> 1); dst[10] = (Sint8) ((sample4 + last_sample4) >> 1); dst[9] = (Sint8) ((sample3 + last_sample3) >> 1); dst[8] = (Sint8) ((sample2 + last_sample2) >> 1); dst[7] = (Sint8) ((sample1 + last_sample1) >> 1); dst[6] = (Sint8) ((sample0 + last_sample0) >> 1); dst[5] = (Sint8) sample5; dst[4] = (Sint8) sample4; dst[3] = (Sint8) sample3; dst[2] = (Sint8) sample2; dst[1] = (Sint8) sample1; dst[0] = (Sint8) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample5 = (Sint16) ((Sint8) src[5]); src += 12; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample2 + last_sample2) >> 1); dst[3] = (Sint8) ((sample3 + last_sample3) >> 1); dst[4] = (Sint8) ((sample4 + last_sample4) >> 1); dst[5] = (Sint8) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 6; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint8 *target = ((const Sint8 *) cvt->buf) - 6; Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample5 = (Sint16) ((Sint8) src[5]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 6; dst[23] = (Sint8) sample5; dst[22] = (Sint8) sample4; dst[21] = (Sint8) sample3; dst[20] = (Sint8) sample2; dst[19] = (Sint8) sample1; dst[18] = (Sint8) sample0; dst[17] = (Sint8) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Sint8) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Sint8) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Sint8) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Sint8) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Sint8) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Sint8) ((sample5 + last_sample5) >> 1); dst[10] = (Sint8) ((sample4 + last_sample4) >> 1); dst[9] = (Sint8) ((sample3 + last_sample3) >> 1); dst[8] = (Sint8) ((sample2 + last_sample2) >> 1); dst[7] = (Sint8) ((sample1 + last_sample1) >> 1); dst[6] = (Sint8) ((sample0 + last_sample0) >> 1); dst[5] = (Sint8) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint8) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint8) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint8) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S8, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample5 = (Sint16) ((Sint8) src[5]); src += 24; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample2 + last_sample2) >> 1); dst[3] = (Sint8) ((sample3 + last_sample3) >> 1); dst[4] = (Sint8) ((sample4 + last_sample4) >> 1); dst[5] = (Sint8) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 8; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint8 *target = ((const Sint8 *) cvt->buf) - 8; Sint16 last_sample7 = (Sint16) ((Sint8) src[7]); Sint16 last_sample6 = (Sint16) ((Sint8) src[6]); Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample7 = (Sint16) ((Sint8) src[7]); const Sint16 sample6 = (Sint16) ((Sint8) src[6]); const Sint16 sample5 = (Sint16) ((Sint8) src[5]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 8; dst[15] = (Sint8) ((sample7 + last_sample7) >> 1); dst[14] = (Sint8) ((sample6 + last_sample6) >> 1); dst[13] = (Sint8) ((sample5 + last_sample5) >> 1); dst[12] = (Sint8) ((sample4 + last_sample4) >> 1); dst[11] = (Sint8) ((sample3 + last_sample3) >> 1); dst[10] = (Sint8) ((sample2 + last_sample2) >> 1); dst[9] = (Sint8) ((sample1 + last_sample1) >> 1); dst[8] = (Sint8) ((sample0 + last_sample0) >> 1); dst[7] = (Sint8) sample7; dst[6] = (Sint8) sample6; dst[5] = (Sint8) sample5; dst[4] = (Sint8) sample4; dst[3] = (Sint8) sample3; dst[2] = (Sint8) sample2; dst[1] = (Sint8) sample1; dst[0] = (Sint8) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); Sint16 last_sample6 = (Sint16) ((Sint8) src[6]); Sint16 last_sample7 = (Sint16) ((Sint8) src[7]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample5 = (Sint16) ((Sint8) src[5]); const Sint16 sample6 = (Sint16) ((Sint8) src[6]); const Sint16 sample7 = (Sint16) ((Sint8) src[7]); src += 16; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample2 + last_sample2) >> 1); dst[3] = (Sint8) ((sample3 + last_sample3) >> 1); dst[4] = (Sint8) ((sample4 + last_sample4) >> 1); dst[5] = (Sint8) ((sample5 + last_sample5) >> 1); dst[6] = (Sint8) ((sample6 + last_sample6) >> 1); dst[7] = (Sint8) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S8_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint8 *dst = ((Sint8 *) (cvt->buf + dstsize)) - 8; const Sint8 *src = ((Sint8 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint8 *target = ((const Sint8 *) cvt->buf) - 8; Sint16 last_sample7 = (Sint16) ((Sint8) src[7]); Sint16 last_sample6 = (Sint16) ((Sint8) src[6]); Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); while (dst > target) { const Sint16 sample7 = (Sint16) ((Sint8) src[7]); const Sint16 sample6 = (Sint16) ((Sint8) src[6]); const Sint16 sample5 = (Sint16) ((Sint8) src[5]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample0 = (Sint16) ((Sint8) src[0]); src -= 8; dst[31] = (Sint8) sample7; dst[30] = (Sint8) sample6; dst[29] = (Sint8) sample5; dst[28] = (Sint8) sample4; dst[27] = (Sint8) sample3; dst[26] = (Sint8) sample2; dst[25] = (Sint8) sample1; dst[24] = (Sint8) sample0; dst[23] = (Sint8) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Sint8) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Sint8) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Sint8) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Sint8) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Sint8) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Sint8) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Sint8) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Sint8) ((sample7 + last_sample7) >> 1); dst[14] = (Sint8) ((sample6 + last_sample6) >> 1); dst[13] = (Sint8) ((sample5 + last_sample5) >> 1); dst[12] = (Sint8) ((sample4 + last_sample4) >> 1); dst[11] = (Sint8) ((sample3 + last_sample3) >> 1); dst[10] = (Sint8) ((sample2 + last_sample2) >> 1); dst[9] = (Sint8) ((sample1 + last_sample1) >> 1); dst[8] = (Sint8) ((sample0 + last_sample0) >> 1); dst[7] = (Sint8) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Sint8) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Sint8) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint8) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint8) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint8) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint8) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint8) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S8_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S8, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint8 *dst = (Sint8 *) cvt->buf; const Sint8 *src = (Sint8 *) cvt->buf; const Sint8 *target = (const Sint8 *) (cvt->buf + dstsize); Sint16 last_sample0 = (Sint16) ((Sint8) src[0]); Sint16 last_sample1 = (Sint16) ((Sint8) src[1]); Sint16 last_sample2 = (Sint16) ((Sint8) src[2]); Sint16 last_sample3 = (Sint16) ((Sint8) src[3]); Sint16 last_sample4 = (Sint16) ((Sint8) src[4]); Sint16 last_sample5 = (Sint16) ((Sint8) src[5]); Sint16 last_sample6 = (Sint16) ((Sint8) src[6]); Sint16 last_sample7 = (Sint16) ((Sint8) src[7]); while (dst < target) { const Sint16 sample0 = (Sint16) ((Sint8) src[0]); const Sint16 sample1 = (Sint16) ((Sint8) src[1]); const Sint16 sample2 = (Sint16) ((Sint8) src[2]); const Sint16 sample3 = (Sint16) ((Sint8) src[3]); const Sint16 sample4 = (Sint16) ((Sint8) src[4]); const Sint16 sample5 = (Sint16) ((Sint8) src[5]); const Sint16 sample6 = (Sint16) ((Sint8) src[6]); const Sint16 sample7 = (Sint16) ((Sint8) src[7]); src += 32; dst[0] = (Sint8) ((sample0 + last_sample0) >> 1); dst[1] = (Sint8) ((sample1 + last_sample1) >> 1); dst[2] = (Sint8) ((sample2 + last_sample2) >> 1); dst[3] = (Sint8) ((sample3 + last_sample3) >> 1); dst[4] = (Sint8) ((sample4 + last_sample4) >> 1); dst[5] = (Sint8) ((sample5 + last_sample5) >> 1); dst[6] = (Sint8) ((sample6 + last_sample6) >> 1); dst[7] = (Sint8) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint16 *target = ((const Uint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src--; dst[1] = (Uint16) ((sample0 + last_sample0) >> 1); dst[0] = (Uint16) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src += 2; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint16 *target = ((const Uint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src--; dst[3] = (Uint16) sample0; dst[2] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Uint16) ((sample0 + last_sample0) >> 1); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src += 4; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint16 *target = ((const Uint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 2; dst[3] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); src += 4; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint16 *target = ((const Uint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 2; dst[7] = (Uint16) sample1; dst[6] = (Uint16) sample0; dst[5] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); src += 8; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint16 *target = ((const Uint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 4; dst[7] = (Uint16) ((sample3 + last_sample3) >> 1); dst[6] = (Uint16) ((sample2 + last_sample2) >> 1); dst[5] = (Uint16) ((sample1 + last_sample1) >> 1); dst[4] = (Uint16) ((sample0 + last_sample0) >> 1); dst[3] = (Uint16) sample3; dst[2] = (Uint16) sample2; dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); src += 8; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint16 *target = ((const Uint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 4; dst[15] = (Uint16) sample3; dst[14] = (Uint16) sample2; dst[13] = (Uint16) sample1; dst[12] = (Uint16) sample0; dst[11] = (Uint16) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Uint16) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Uint16) ((sample3 + last_sample3) >> 1); dst[6] = (Uint16) ((sample2 + last_sample2) >> 1); dst[5] = (Uint16) ((sample1 + last_sample1) >> 1); dst[4] = (Uint16) ((sample0 + last_sample0) >> 1); dst[3] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); src += 16; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint16 *target = ((const Uint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 6; dst[11] = (Uint16) ((sample5 + last_sample5) >> 1); dst[10] = (Uint16) ((sample4 + last_sample4) >> 1); dst[9] = (Uint16) ((sample3 + last_sample3) >> 1); dst[8] = (Uint16) ((sample2 + last_sample2) >> 1); dst[7] = (Uint16) ((sample1 + last_sample1) >> 1); dst[6] = (Uint16) ((sample0 + last_sample0) >> 1); dst[5] = (Uint16) sample5; dst[4] = (Uint16) sample4; dst[3] = (Uint16) sample3; dst[2] = (Uint16) sample2; dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); src += 12; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint16 *target = ((const Uint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 6; dst[23] = (Uint16) sample5; dst[22] = (Uint16) sample4; dst[21] = (Uint16) sample3; dst[20] = (Uint16) sample2; dst[19] = (Uint16) sample1; dst[18] = (Uint16) sample0; dst[17] = (Uint16) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Uint16) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Uint16) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Uint16) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Uint16) ((sample5 + last_sample5) >> 1); dst[10] = (Uint16) ((sample4 + last_sample4) >> 1); dst[9] = (Uint16) ((sample3 + last_sample3) >> 1); dst[8] = (Uint16) ((sample2 + last_sample2) >> 1); dst[7] = (Uint16) ((sample1 + last_sample1) >> 1); dst[6] = (Uint16) ((sample0 + last_sample0) >> 1); dst[5] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); src += 24; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint16 *target = ((const Uint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]); Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]); Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]); const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]); const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 8; dst[15] = (Uint16) ((sample7 + last_sample7) >> 1); dst[14] = (Uint16) ((sample6 + last_sample6) >> 1); dst[13] = (Uint16) ((sample5 + last_sample5) >> 1); dst[12] = (Uint16) ((sample4 + last_sample4) >> 1); dst[11] = (Uint16) ((sample3 + last_sample3) >> 1); dst[10] = (Uint16) ((sample2 + last_sample2) >> 1); dst[9] = (Uint16) ((sample1 + last_sample1) >> 1); dst[8] = (Uint16) ((sample0 + last_sample0) >> 1); dst[7] = (Uint16) sample7; dst[6] = (Uint16) sample6; dst[5] = (Uint16) sample5; dst[4] = (Uint16) sample4; dst[3] = (Uint16) sample3; dst[2] = (Uint16) sample2; dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]); Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]); const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]); src += 16; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); dst[6] = (Uint16) ((sample6 + last_sample6) >> 1); dst[7] = (Uint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint16 *target = ((const Uint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]); Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]); Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); while (dst > target) { const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]); const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]); const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); src -= 8; dst[31] = (Uint16) sample7; dst[30] = (Uint16) sample6; dst[29] = (Uint16) sample5; dst[28] = (Uint16) sample4; dst[27] = (Uint16) sample3; dst[26] = (Uint16) sample2; dst[25] = (Uint16) sample1; dst[24] = (Uint16) sample0; dst[23] = (Uint16) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Uint16) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Uint16) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Uint16) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Uint16) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Uint16) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Uint16) ((sample7 + last_sample7) >> 1); dst[14] = (Uint16) ((sample6 + last_sample6) >> 1); dst[13] = (Uint16) ((sample5 + last_sample5) >> 1); dst[12] = (Uint16) ((sample4 + last_sample4) >> 1); dst[11] = (Uint16) ((sample3 + last_sample3) >> 1); dst[10] = (Uint16) ((sample2 + last_sample2) >> 1); dst[9] = (Uint16) ((sample1 + last_sample1) >> 1); dst[8] = (Uint16) ((sample0 + last_sample0) >> 1); dst[7] = (Uint16) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Uint16) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapLE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapLE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapLE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapLE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapLE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapLE16(src[5]); Sint32 last_sample6 = (Sint32) SDL_SwapLE16(src[6]); Sint32 last_sample7 = (Sint32) SDL_SwapLE16(src[7]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapLE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapLE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapLE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapLE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapLE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapLE16(src[5]); const Sint32 sample6 = (Sint32) SDL_SwapLE16(src[6]); const Sint32 sample7 = (Sint32) SDL_SwapLE16(src[7]); src += 32; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); dst[6] = (Uint16) ((sample6 + last_sample6) >> 1); dst[7] = (Uint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint16 *target = ((const Sint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src--; dst[1] = (Sint16) ((sample0 + last_sample0) >> 1); dst[0] = (Sint16) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src += 2; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint16 *target = ((const Sint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src--; dst[3] = (Sint16) sample0; dst[2] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Sint16) ((sample0 + last_sample0) >> 1); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src += 4; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint16 *target = ((const Sint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 2; dst[3] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); src += 4; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint16 *target = ((const Sint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 2; dst[7] = (Sint16) sample1; dst[6] = (Sint16) sample0; dst[5] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); src += 8; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint16 *target = ((const Sint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 4; dst[7] = (Sint16) ((sample3 + last_sample3) >> 1); dst[6] = (Sint16) ((sample2 + last_sample2) >> 1); dst[5] = (Sint16) ((sample1 + last_sample1) >> 1); dst[4] = (Sint16) ((sample0 + last_sample0) >> 1); dst[3] = (Sint16) sample3; dst[2] = (Sint16) sample2; dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); src += 8; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint16 *target = ((const Sint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 4; dst[15] = (Sint16) sample3; dst[14] = (Sint16) sample2; dst[13] = (Sint16) sample1; dst[12] = (Sint16) sample0; dst[11] = (Sint16) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Sint16) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Sint16) ((sample3 + last_sample3) >> 1); dst[6] = (Sint16) ((sample2 + last_sample2) >> 1); dst[5] = (Sint16) ((sample1 + last_sample1) >> 1); dst[4] = (Sint16) ((sample0 + last_sample0) >> 1); dst[3] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); src += 16; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint16 *target = ((const Sint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 6; dst[11] = (Sint16) ((sample5 + last_sample5) >> 1); dst[10] = (Sint16) ((sample4 + last_sample4) >> 1); dst[9] = (Sint16) ((sample3 + last_sample3) >> 1); dst[8] = (Sint16) ((sample2 + last_sample2) >> 1); dst[7] = (Sint16) ((sample1 + last_sample1) >> 1); dst[6] = (Sint16) ((sample0 + last_sample0) >> 1); dst[5] = (Sint16) sample5; dst[4] = (Sint16) sample4; dst[3] = (Sint16) sample3; dst[2] = (Sint16) sample2; dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); src += 12; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint16 *target = ((const Sint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 6; dst[23] = (Sint16) sample5; dst[22] = (Sint16) sample4; dst[21] = (Sint16) sample3; dst[20] = (Sint16) sample2; dst[19] = (Sint16) sample1; dst[18] = (Sint16) sample0; dst[17] = (Sint16) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Sint16) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Sint16) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Sint16) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Sint16) ((sample5 + last_sample5) >> 1); dst[10] = (Sint16) ((sample4 + last_sample4) >> 1); dst[9] = (Sint16) ((sample3 + last_sample3) >> 1); dst[8] = (Sint16) ((sample2 + last_sample2) >> 1); dst[7] = (Sint16) ((sample1 + last_sample1) >> 1); dst[6] = (Sint16) ((sample0 + last_sample0) >> 1); dst[5] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); src += 24; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint16 *target = ((const Sint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 8; dst[15] = (Sint16) ((sample7 + last_sample7) >> 1); dst[14] = (Sint16) ((sample6 + last_sample6) >> 1); dst[13] = (Sint16) ((sample5 + last_sample5) >> 1); dst[12] = (Sint16) ((sample4 + last_sample4) >> 1); dst[11] = (Sint16) ((sample3 + last_sample3) >> 1); dst[10] = (Sint16) ((sample2 + last_sample2) >> 1); dst[9] = (Sint16) ((sample1 + last_sample1) >> 1); dst[8] = (Sint16) ((sample0 + last_sample0) >> 1); dst[7] = (Sint16) sample7; dst[6] = (Sint16) sample6; dst[5] = (Sint16) sample5; dst[4] = (Sint16) sample4; dst[3] = (Sint16) sample3; dst[2] = (Sint16) sample2; dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); src += 16; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); dst[6] = (Sint16) ((sample6 + last_sample6) >> 1); dst[7] = (Sint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint16 *target = ((const Sint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); while (dst > target) { const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); src -= 8; dst[31] = (Sint16) sample7; dst[30] = (Sint16) sample6; dst[29] = (Sint16) sample5; dst[28] = (Sint16) sample4; dst[27] = (Sint16) sample3; dst[26] = (Sint16) sample2; dst[25] = (Sint16) sample1; dst[24] = (Sint16) sample0; dst[23] = (Sint16) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Sint16) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Sint16) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Sint16) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Sint16) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Sint16) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Sint16) ((sample7 + last_sample7) >> 1); dst[14] = (Sint16) ((sample6 + last_sample6) >> 1); dst[13] = (Sint16) ((sample5 + last_sample5) >> 1); dst[12] = (Sint16) ((sample4 + last_sample4) >> 1); dst[11] = (Sint16) ((sample3 + last_sample3) >> 1); dst[10] = (Sint16) ((sample2 + last_sample2) >> 1); dst[9] = (Sint16) ((sample1 + last_sample1) >> 1); dst[8] = (Sint16) ((sample0 + last_sample0) >> 1); dst[7] = (Sint16) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Sint16) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapLE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapLE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapLE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapLE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapLE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapLE16(src[5])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapLE16(src[6])); const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapLE16(src[7])); src += 32; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); dst[6] = (Sint16) ((sample6 + last_sample6) >> 1); dst[7] = (Sint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint16 *target = ((const Uint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src--; dst[1] = (Uint16) ((sample0 + last_sample0) >> 1); dst[0] = (Uint16) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src += 2; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 1; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Uint16 *target = ((const Uint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src--; dst[3] = (Uint16) sample0; dst[2] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Uint16) ((sample0 + last_sample0) >> 1); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src += 4; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint16 *target = ((const Uint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 2; dst[3] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); src += 4; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 2; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Uint16 *target = ((const Uint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 2; dst[7] = (Uint16) sample1; dst[6] = (Uint16) sample0; dst[5] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); src += 8; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint16 *target = ((const Uint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 4; dst[7] = (Uint16) ((sample3 + last_sample3) >> 1); dst[6] = (Uint16) ((sample2 + last_sample2) >> 1); dst[5] = (Uint16) ((sample1 + last_sample1) >> 1); dst[4] = (Uint16) ((sample0 + last_sample0) >> 1); dst[3] = (Uint16) sample3; dst[2] = (Uint16) sample2; dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); src += 8; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 4; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Uint16 *target = ((const Uint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 4; dst[15] = (Uint16) sample3; dst[14] = (Uint16) sample2; dst[13] = (Uint16) sample1; dst[12] = (Uint16) sample0; dst[11] = (Uint16) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Uint16) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Uint16) ((sample3 + last_sample3) >> 1); dst[6] = (Uint16) ((sample2 + last_sample2) >> 1); dst[5] = (Uint16) ((sample1 + last_sample1) >> 1); dst[4] = (Uint16) ((sample0 + last_sample0) >> 1); dst[3] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); src += 16; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint16 *target = ((const Uint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 6; dst[11] = (Uint16) ((sample5 + last_sample5) >> 1); dst[10] = (Uint16) ((sample4 + last_sample4) >> 1); dst[9] = (Uint16) ((sample3 + last_sample3) >> 1); dst[8] = (Uint16) ((sample2 + last_sample2) >> 1); dst[7] = (Uint16) ((sample1 + last_sample1) >> 1); dst[6] = (Uint16) ((sample0 + last_sample0) >> 1); dst[5] = (Uint16) sample5; dst[4] = (Uint16) sample4; dst[3] = (Uint16) sample3; dst[2] = (Uint16) sample2; dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); src += 12; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 6; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Uint16 *target = ((const Uint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 6; dst[23] = (Uint16) sample5; dst[22] = (Uint16) sample4; dst[21] = (Uint16) sample3; dst[20] = (Uint16) sample2; dst[19] = (Uint16) sample1; dst[18] = (Uint16) sample0; dst[17] = (Uint16) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Uint16) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Uint16) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Uint16) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Uint16) ((sample5 + last_sample5) >> 1); dst[10] = (Uint16) ((sample4 + last_sample4) >> 1); dst[9] = (Uint16) ((sample3 + last_sample3) >> 1); dst[8] = (Uint16) ((sample2 + last_sample2) >> 1); dst[7] = (Uint16) ((sample1 + last_sample1) >> 1); dst[6] = (Uint16) ((sample0 + last_sample0) >> 1); dst[5] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); src += 24; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_U16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint16 *target = ((const Uint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]); Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]); Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]); const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]); const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 8; dst[15] = (Uint16) ((sample7 + last_sample7) >> 1); dst[14] = (Uint16) ((sample6 + last_sample6) >> 1); dst[13] = (Uint16) ((sample5 + last_sample5) >> 1); dst[12] = (Uint16) ((sample4 + last_sample4) >> 1); dst[11] = (Uint16) ((sample3 + last_sample3) >> 1); dst[10] = (Uint16) ((sample2 + last_sample2) >> 1); dst[9] = (Uint16) ((sample1 + last_sample1) >> 1); dst[8] = (Uint16) ((sample0 + last_sample0) >> 1); dst[7] = (Uint16) sample7; dst[6] = (Uint16) sample6; dst[5] = (Uint16) sample5; dst[4] = (Uint16) sample4; dst[3] = (Uint16) sample3; dst[2] = (Uint16) sample2; dst[1] = (Uint16) sample1; dst[0] = (Uint16) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_U16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]); Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]); const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]); src += 16; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); dst[6] = (Uint16) ((sample6 + last_sample6) >> 1); dst[7] = (Uint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_U16MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_U16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Uint16 *dst = ((Uint16 *) (cvt->buf + dstsize)) - 8; const Uint16 *src = ((Uint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Uint16 *target = ((const Uint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]); Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]); Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); while (dst > target) { const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]); const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]); const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); src -= 8; dst[31] = (Uint16) sample7; dst[30] = (Uint16) sample6; dst[29] = (Uint16) sample5; dst[28] = (Uint16) sample4; dst[27] = (Uint16) sample3; dst[26] = (Uint16) sample2; dst[25] = (Uint16) sample1; dst[24] = (Uint16) sample0; dst[23] = (Uint16) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Uint16) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Uint16) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Uint16) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Uint16) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Uint16) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Uint16) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Uint16) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Uint16) ((sample7 + last_sample7) >> 1); dst[14] = (Uint16) ((sample6 + last_sample6) >> 1); dst[13] = (Uint16) ((sample5 + last_sample5) >> 1); dst[12] = (Uint16) ((sample4 + last_sample4) >> 1); dst[11] = (Uint16) ((sample3 + last_sample3) >> 1); dst[10] = (Uint16) ((sample2 + last_sample2) >> 1); dst[9] = (Uint16) ((sample1 + last_sample1) >> 1); dst[8] = (Uint16) ((sample0 + last_sample0) >> 1); dst[7] = (Uint16) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Uint16) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Uint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Uint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Uint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Uint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Uint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Uint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_U16MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_U16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Uint16 *dst = (Uint16 *) cvt->buf; const Uint16 *src = (Uint16 *) cvt->buf; const Uint16 *target = (const Uint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) SDL_SwapBE16(src[0]); Sint32 last_sample1 = (Sint32) SDL_SwapBE16(src[1]); Sint32 last_sample2 = (Sint32) SDL_SwapBE16(src[2]); Sint32 last_sample3 = (Sint32) SDL_SwapBE16(src[3]); Sint32 last_sample4 = (Sint32) SDL_SwapBE16(src[4]); Sint32 last_sample5 = (Sint32) SDL_SwapBE16(src[5]); Sint32 last_sample6 = (Sint32) SDL_SwapBE16(src[6]); Sint32 last_sample7 = (Sint32) SDL_SwapBE16(src[7]); while (dst < target) { const Sint32 sample0 = (Sint32) SDL_SwapBE16(src[0]); const Sint32 sample1 = (Sint32) SDL_SwapBE16(src[1]); const Sint32 sample2 = (Sint32) SDL_SwapBE16(src[2]); const Sint32 sample3 = (Sint32) SDL_SwapBE16(src[3]); const Sint32 sample4 = (Sint32) SDL_SwapBE16(src[4]); const Sint32 sample5 = (Sint32) SDL_SwapBE16(src[5]); const Sint32 sample6 = (Sint32) SDL_SwapBE16(src[6]); const Sint32 sample7 = (Sint32) SDL_SwapBE16(src[7]); src += 32; dst[0] = (Uint16) ((sample0 + last_sample0) >> 1); dst[1] = (Uint16) ((sample1 + last_sample1) >> 1); dst[2] = (Uint16) ((sample2 + last_sample2) >> 1); dst[3] = (Uint16) ((sample3 + last_sample3) >> 1); dst[4] = (Uint16) ((sample4 + last_sample4) >> 1); dst[5] = (Uint16) ((sample5 + last_sample5) >> 1); dst[6] = (Uint16) ((sample6 + last_sample6) >> 1); dst[7] = (Uint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint16 *target = ((const Sint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src--; dst[1] = (Sint16) ((sample0 + last_sample0) >> 1); dst[0] = (Sint16) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src += 2; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 1; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint16 *target = ((const Sint16 *) cvt->buf) - 1; Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src--; dst[3] = (Sint16) sample0; dst[2] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Sint16) ((sample0 + last_sample0) >> 1); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src += 4; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint16 *target = ((const Sint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 2; dst[3] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); src += 4; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 2; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint16 *target = ((const Sint16 *) cvt->buf) - 2; Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 2; dst[7] = (Sint16) sample1; dst[6] = (Sint16) sample0; dst[5] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); src += 8; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint16 *target = ((const Sint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 4; dst[7] = (Sint16) ((sample3 + last_sample3) >> 1); dst[6] = (Sint16) ((sample2 + last_sample2) >> 1); dst[5] = (Sint16) ((sample1 + last_sample1) >> 1); dst[4] = (Sint16) ((sample0 + last_sample0) >> 1); dst[3] = (Sint16) sample3; dst[2] = (Sint16) sample2; dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); src += 8; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 4; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint16 *target = ((const Sint16 *) cvt->buf) - 4; Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 4; dst[15] = (Sint16) sample3; dst[14] = (Sint16) sample2; dst[13] = (Sint16) sample1; dst[12] = (Sint16) sample0; dst[11] = (Sint16) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Sint16) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Sint16) ((sample3 + last_sample3) >> 1); dst[6] = (Sint16) ((sample2 + last_sample2) >> 1); dst[5] = (Sint16) ((sample1 + last_sample1) >> 1); dst[4] = (Sint16) ((sample0 + last_sample0) >> 1); dst[3] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); src += 16; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint16 *target = ((const Sint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 6; dst[11] = (Sint16) ((sample5 + last_sample5) >> 1); dst[10] = (Sint16) ((sample4 + last_sample4) >> 1); dst[9] = (Sint16) ((sample3 + last_sample3) >> 1); dst[8] = (Sint16) ((sample2 + last_sample2) >> 1); dst[7] = (Sint16) ((sample1 + last_sample1) >> 1); dst[6] = (Sint16) ((sample0 + last_sample0) >> 1); dst[5] = (Sint16) sample5; dst[4] = (Sint16) sample4; dst[3] = (Sint16) sample3; dst[2] = (Sint16) sample2; dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); src += 12; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 6; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint16 *target = ((const Sint16 *) cvt->buf) - 6; Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 6; dst[23] = (Sint16) sample5; dst[22] = (Sint16) sample4; dst[21] = (Sint16) sample3; dst[20] = (Sint16) sample2; dst[19] = (Sint16) sample1; dst[18] = (Sint16) sample0; dst[17] = (Sint16) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Sint16) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Sint16) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Sint16) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Sint16) ((sample5 + last_sample5) >> 1); dst[10] = (Sint16) ((sample4 + last_sample4) >> 1); dst[9] = (Sint16) ((sample3 + last_sample3) >> 1); dst[8] = (Sint16) ((sample2 + last_sample2) >> 1); dst[7] = (Sint16) ((sample1 + last_sample1) >> 1); dst[6] = (Sint16) ((sample0 + last_sample0) >> 1); dst[5] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); src += 24; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint16 *target = ((const Sint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 8; dst[15] = (Sint16) ((sample7 + last_sample7) >> 1); dst[14] = (Sint16) ((sample6 + last_sample6) >> 1); dst[13] = (Sint16) ((sample5 + last_sample5) >> 1); dst[12] = (Sint16) ((sample4 + last_sample4) >> 1); dst[11] = (Sint16) ((sample3 + last_sample3) >> 1); dst[10] = (Sint16) ((sample2 + last_sample2) >> 1); dst[9] = (Sint16) ((sample1 + last_sample1) >> 1); dst[8] = (Sint16) ((sample0 + last_sample0) >> 1); dst[7] = (Sint16) sample7; dst[6] = (Sint16) sample6; dst[5] = (Sint16) sample5; dst[4] = (Sint16) sample4; dst[3] = (Sint16) sample3; dst[2] = (Sint16) sample2; dst[1] = (Sint16) sample1; dst[0] = (Sint16) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); src += 16; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); dst[6] = (Sint16) ((sample6 + last_sample6) >> 1); dst[7] = (Sint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S16MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint16 *dst = ((Sint16 *) (cvt->buf + dstsize)) - 8; const Sint16 *src = ((Sint16 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint16 *target = ((const Sint16 *) cvt->buf) - 8; Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); while (dst > target) { const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); src -= 8; dst[31] = (Sint16) sample7; dst[30] = (Sint16) sample6; dst[29] = (Sint16) sample5; dst[28] = (Sint16) sample4; dst[27] = (Sint16) sample3; dst[26] = (Sint16) sample2; dst[25] = (Sint16) sample1; dst[24] = (Sint16) sample0; dst[23] = (Sint16) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Sint16) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Sint16) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Sint16) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Sint16) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Sint16) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Sint16) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Sint16) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Sint16) ((sample7 + last_sample7) >> 1); dst[14] = (Sint16) ((sample6 + last_sample6) >> 1); dst[13] = (Sint16) ((sample5 + last_sample5) >> 1); dst[12] = (Sint16) ((sample4 + last_sample4) >> 1); dst[11] = (Sint16) ((sample3 + last_sample3) >> 1); dst[10] = (Sint16) ((sample2 + last_sample2) >> 1); dst[9] = (Sint16) ((sample1 + last_sample1) >> 1); dst[8] = (Sint16) ((sample0 + last_sample0) >> 1); dst[7] = (Sint16) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Sint16) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Sint16) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint16) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint16) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint16) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint16) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint16) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S16MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S16MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint16 *dst = (Sint16 *) cvt->buf; const Sint16 *src = (Sint16 *) cvt->buf; const Sint16 *target = (const Sint16 *) (cvt->buf + dstsize); Sint32 last_sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); Sint32 last_sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); Sint32 last_sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); Sint32 last_sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); Sint32 last_sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); Sint32 last_sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); Sint32 last_sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); Sint32 last_sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); while (dst < target) { const Sint32 sample0 = (Sint32) ((Sint16) SDL_SwapBE16(src[0])); const Sint32 sample1 = (Sint32) ((Sint16) SDL_SwapBE16(src[1])); const Sint32 sample2 = (Sint32) ((Sint16) SDL_SwapBE16(src[2])); const Sint32 sample3 = (Sint32) ((Sint16) SDL_SwapBE16(src[3])); const Sint32 sample4 = (Sint32) ((Sint16) SDL_SwapBE16(src[4])); const Sint32 sample5 = (Sint32) ((Sint16) SDL_SwapBE16(src[5])); const Sint32 sample6 = (Sint32) ((Sint16) SDL_SwapBE16(src[6])); const Sint32 sample7 = (Sint32) ((Sint16) SDL_SwapBE16(src[7])); src += 32; dst[0] = (Sint16) ((sample0 + last_sample0) >> 1); dst[1] = (Sint16) ((sample1 + last_sample1) >> 1); dst[2] = (Sint16) ((sample2 + last_sample2) >> 1); dst[3] = (Sint16) ((sample3 + last_sample3) >> 1); dst[4] = (Sint16) ((sample4 + last_sample4) >> 1); dst[5] = (Sint16) ((sample5 + last_sample5) >> 1); dst[6] = (Sint16) ((sample6 + last_sample6) >> 1); dst[7] = (Sint16) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint32 *target = ((const Sint32 *) cvt->buf) - 1; Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src--; dst[1] = (Sint32) ((sample0 + last_sample0) >> 1); dst[0] = (Sint32) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src += 2; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint32 *target = ((const Sint32 *) cvt->buf) - 1; Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src--; dst[3] = (Sint32) sample0; dst[2] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Sint32) ((sample0 + last_sample0) >> 1); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src += 4; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint32 *target = ((const Sint32 *) cvt->buf) - 2; Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 2; dst[3] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); src += 4; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint32 *target = ((const Sint32 *) cvt->buf) - 2; Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 2; dst[7] = (Sint32) sample1; dst[6] = (Sint32) sample0; dst[5] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); src += 8; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint32 *target = ((const Sint32 *) cvt->buf) - 4; Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 4; dst[7] = (Sint32) ((sample3 + last_sample3) >> 1); dst[6] = (Sint32) ((sample2 + last_sample2) >> 1); dst[5] = (Sint32) ((sample1 + last_sample1) >> 1); dst[4] = (Sint32) ((sample0 + last_sample0) >> 1); dst[3] = (Sint32) sample3; dst[2] = (Sint32) sample2; dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); src += 8; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint32 *target = ((const Sint32 *) cvt->buf) - 4; Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 4; dst[15] = (Sint32) sample3; dst[14] = (Sint32) sample2; dst[13] = (Sint32) sample1; dst[12] = (Sint32) sample0; dst[11] = (Sint32) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Sint32) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Sint32) ((sample3 + last_sample3) >> 1); dst[6] = (Sint32) ((sample2 + last_sample2) >> 1); dst[5] = (Sint32) ((sample1 + last_sample1) >> 1); dst[4] = (Sint32) ((sample0 + last_sample0) >> 1); dst[3] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); src += 16; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint32 *target = ((const Sint32 *) cvt->buf) - 6; Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 6; dst[11] = (Sint32) ((sample5 + last_sample5) >> 1); dst[10] = (Sint32) ((sample4 + last_sample4) >> 1); dst[9] = (Sint32) ((sample3 + last_sample3) >> 1); dst[8] = (Sint32) ((sample2 + last_sample2) >> 1); dst[7] = (Sint32) ((sample1 + last_sample1) >> 1); dst[6] = (Sint32) ((sample0 + last_sample0) >> 1); dst[5] = (Sint32) sample5; dst[4] = (Sint32) sample4; dst[3] = (Sint32) sample3; dst[2] = (Sint32) sample2; dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); src += 12; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint32 *target = ((const Sint32 *) cvt->buf) - 6; Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 6; dst[23] = (Sint32) sample5; dst[22] = (Sint32) sample4; dst[21] = (Sint32) sample3; dst[20] = (Sint32) sample2; dst[19] = (Sint32) sample1; dst[18] = (Sint32) sample0; dst[17] = (Sint32) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Sint32) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Sint32) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Sint32) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Sint32) ((sample5 + last_sample5) >> 1); dst[10] = (Sint32) ((sample4 + last_sample4) >> 1); dst[9] = (Sint32) ((sample3 + last_sample3) >> 1); dst[8] = (Sint32) ((sample2 + last_sample2) >> 1); dst[7] = (Sint32) ((sample1 + last_sample1) >> 1); dst[6] = (Sint32) ((sample0 + last_sample0) >> 1); dst[5] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); src += 24; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint32 *target = ((const Sint32 *) cvt->buf) - 8; Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 8; dst[15] = (Sint32) ((sample7 + last_sample7) >> 1); dst[14] = (Sint32) ((sample6 + last_sample6) >> 1); dst[13] = (Sint32) ((sample5 + last_sample5) >> 1); dst[12] = (Sint32) ((sample4 + last_sample4) >> 1); dst[11] = (Sint32) ((sample3 + last_sample3) >> 1); dst[10] = (Sint32) ((sample2 + last_sample2) >> 1); dst[9] = (Sint32) ((sample1 + last_sample1) >> 1); dst[8] = (Sint32) ((sample0 + last_sample0) >> 1); dst[7] = (Sint32) sample7; dst[6] = (Sint32) sample6; dst[5] = (Sint32) sample5; dst[4] = (Sint32) sample4; dst[3] = (Sint32) sample3; dst[2] = (Sint32) sample2; dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); src += 16; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); dst[6] = (Sint32) ((sample6 + last_sample6) >> 1); dst[7] = (Sint32) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint32 *target = ((const Sint32 *) cvt->buf) - 8; Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); while (dst > target) { const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); src -= 8; dst[31] = (Sint32) sample7; dst[30] = (Sint32) sample6; dst[29] = (Sint32) sample5; dst[28] = (Sint32) sample4; dst[27] = (Sint32) sample3; dst[26] = (Sint32) sample2; dst[25] = (Sint32) sample1; dst[24] = (Sint32) sample0; dst[23] = (Sint32) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Sint32) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Sint32) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Sint32) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Sint32) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Sint32) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Sint32) ((sample7 + last_sample7) >> 1); dst[14] = (Sint32) ((sample6 + last_sample6) >> 1); dst[13] = (Sint32) ((sample5 + last_sample5) >> 1); dst[12] = (Sint32) ((sample4 + last_sample4) >> 1); dst[11] = (Sint32) ((sample3 + last_sample3) >> 1); dst[10] = (Sint32) ((sample2 + last_sample2) >> 1); dst[9] = (Sint32) ((sample1 + last_sample1) >> 1); dst[8] = (Sint32) ((sample0 + last_sample0) >> 1); dst[7] = (Sint32) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Sint32) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapLE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapLE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapLE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapLE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapLE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapLE32(src[5])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapLE32(src[6])); const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapLE32(src[7])); src += 32; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); dst[6] = (Sint32) ((sample6 + last_sample6) >> 1); dst[7] = (Sint32) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint32 *target = ((const Sint32 *) cvt->buf) - 1; Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src--; dst[1] = (Sint32) ((sample0 + last_sample0) >> 1); dst[0] = (Sint32) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src += 2; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 1; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 1; const Sint32 *target = ((const Sint32 *) cvt->buf) - 1; Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src--; dst[3] = (Sint32) sample0; dst[2] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[1] = (Sint32) ((sample0 + last_sample0) >> 1); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src += 4; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint32 *target = ((const Sint32 *) cvt->buf) - 2; Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 2; dst[3] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); src += 4; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 2; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 2; const Sint32 *target = ((const Sint32 *) cvt->buf) - 2; Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 2; dst[7] = (Sint32) sample1; dst[6] = (Sint32) sample0; dst[5] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[4] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[3] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); src += 8; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint32 *target = ((const Sint32 *) cvt->buf) - 4; Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 4; dst[7] = (Sint32) ((sample3 + last_sample3) >> 1); dst[6] = (Sint32) ((sample2 + last_sample2) >> 1); dst[5] = (Sint32) ((sample1 + last_sample1) >> 1); dst[4] = (Sint32) ((sample0 + last_sample0) >> 1); dst[3] = (Sint32) sample3; dst[2] = (Sint32) sample2; dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); src += 8; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 4; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 4; const Sint32 *target = ((const Sint32 *) cvt->buf) - 4; Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 4; dst[15] = (Sint32) sample3; dst[14] = (Sint32) sample2; dst[13] = (Sint32) sample1; dst[12] = (Sint32) sample0; dst[11] = (Sint32) (((3 * sample3) + last_sample3) >> 2); dst[10] = (Sint32) (((3 * sample2) + last_sample2) >> 2); dst[9] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[8] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[7] = (Sint32) ((sample3 + last_sample3) >> 1); dst[6] = (Sint32) ((sample2 + last_sample2) >> 1); dst[5] = (Sint32) ((sample1 + last_sample1) >> 1); dst[4] = (Sint32) ((sample0 + last_sample0) >> 1); dst[3] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); src += 16; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint32 *target = ((const Sint32 *) cvt->buf) - 6; Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 6; dst[11] = (Sint32) ((sample5 + last_sample5) >> 1); dst[10] = (Sint32) ((sample4 + last_sample4) >> 1); dst[9] = (Sint32) ((sample3 + last_sample3) >> 1); dst[8] = (Sint32) ((sample2 + last_sample2) >> 1); dst[7] = (Sint32) ((sample1 + last_sample1) >> 1); dst[6] = (Sint32) ((sample0 + last_sample0) >> 1); dst[5] = (Sint32) sample5; dst[4] = (Sint32) sample4; dst[3] = (Sint32) sample3; dst[2] = (Sint32) sample2; dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); src += 12; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 6; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 6; const Sint32 *target = ((const Sint32 *) cvt->buf) - 6; Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 6; dst[23] = (Sint32) sample5; dst[22] = (Sint32) sample4; dst[21] = (Sint32) sample3; dst[20] = (Sint32) sample2; dst[19] = (Sint32) sample1; dst[18] = (Sint32) sample0; dst[17] = (Sint32) (((3 * sample5) + last_sample5) >> 2); dst[16] = (Sint32) (((3 * sample4) + last_sample4) >> 2); dst[15] = (Sint32) (((3 * sample3) + last_sample3) >> 2); dst[14] = (Sint32) (((3 * sample2) + last_sample2) >> 2); dst[13] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[12] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[11] = (Sint32) ((sample5 + last_sample5) >> 1); dst[10] = (Sint32) ((sample4 + last_sample4) >> 1); dst[9] = (Sint32) ((sample3 + last_sample3) >> 1); dst[8] = (Sint32) ((sample2 + last_sample2) >> 1); dst[7] = (Sint32) ((sample1 + last_sample1) >> 1); dst[6] = (Sint32) ((sample0 + last_sample0) >> 1); dst[5] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); src += 24; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_S32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint32 *target = ((const Sint32 *) cvt->buf) - 8; Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 8; dst[15] = (Sint32) ((sample7 + last_sample7) >> 1); dst[14] = (Sint32) ((sample6 + last_sample6) >> 1); dst[13] = (Sint32) ((sample5 + last_sample5) >> 1); dst[12] = (Sint32) ((sample4 + last_sample4) >> 1); dst[11] = (Sint32) ((sample3 + last_sample3) >> 1); dst[10] = (Sint32) ((sample2 + last_sample2) >> 1); dst[9] = (Sint32) ((sample1 + last_sample1) >> 1); dst[8] = (Sint32) ((sample0 + last_sample0) >> 1); dst[7] = (Sint32) sample7; dst[6] = (Sint32) sample6; dst[5] = (Sint32) sample5; dst[4] = (Sint32) sample4; dst[3] = (Sint32) sample3; dst[2] = (Sint32) sample2; dst[1] = (Sint32) sample1; dst[0] = (Sint32) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_S32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); src += 16; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); dst[6] = (Sint32) ((sample6 + last_sample6) >> 1); dst[7] = (Sint32) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_S32MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_S32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; Sint32 *dst = ((Sint32 *) (cvt->buf + dstsize)) - 8; const Sint32 *src = ((Sint32 *) (cvt->buf + cvt->len_cvt)) - 8; const Sint32 *target = ((const Sint32 *) cvt->buf) - 8; Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); while (dst > target) { const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); src -= 8; dst[31] = (Sint32) sample7; dst[30] = (Sint32) sample6; dst[29] = (Sint32) sample5; dst[28] = (Sint32) sample4; dst[27] = (Sint32) sample3; dst[26] = (Sint32) sample2; dst[25] = (Sint32) sample1; dst[24] = (Sint32) sample0; dst[23] = (Sint32) (((3 * sample7) + last_sample7) >> 2); dst[22] = (Sint32) (((3 * sample6) + last_sample6) >> 2); dst[21] = (Sint32) (((3 * sample5) + last_sample5) >> 2); dst[20] = (Sint32) (((3 * sample4) + last_sample4) >> 2); dst[19] = (Sint32) (((3 * sample3) + last_sample3) >> 2); dst[18] = (Sint32) (((3 * sample2) + last_sample2) >> 2); dst[17] = (Sint32) (((3 * sample1) + last_sample1) >> 2); dst[16] = (Sint32) (((3 * sample0) + last_sample0) >> 2); dst[15] = (Sint32) ((sample7 + last_sample7) >> 1); dst[14] = (Sint32) ((sample6 + last_sample6) >> 1); dst[13] = (Sint32) ((sample5 + last_sample5) >> 1); dst[12] = (Sint32) ((sample4 + last_sample4) >> 1); dst[11] = (Sint32) ((sample3 + last_sample3) >> 1); dst[10] = (Sint32) ((sample2 + last_sample2) >> 1); dst[9] = (Sint32) ((sample1 + last_sample1) >> 1); dst[8] = (Sint32) ((sample0 + last_sample0) >> 1); dst[7] = (Sint32) ((sample7 + (3 * last_sample7)) >> 2); dst[6] = (Sint32) ((sample6 + (3 * last_sample6)) >> 2); dst[5] = (Sint32) ((sample5 + (3 * last_sample5)) >> 2); dst[4] = (Sint32) ((sample4 + (3 * last_sample4)) >> 2); dst[3] = (Sint32) ((sample3 + (3 * last_sample3)) >> 2); dst[2] = (Sint32) ((sample2 + (3 * last_sample2)) >> 2); dst[1] = (Sint32) ((sample1 + (3 * last_sample1)) >> 2); dst[0] = (Sint32) ((sample0 + (3 * last_sample0)) >> 2); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_S32MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_S32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; Sint32 *dst = (Sint32 *) cvt->buf; const Sint32 *src = (Sint32 *) cvt->buf; const Sint32 *target = (const Sint32 *) (cvt->buf + dstsize); Sint64 last_sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); Sint64 last_sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); Sint64 last_sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); Sint64 last_sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); Sint64 last_sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); Sint64 last_sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); Sint64 last_sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); Sint64 last_sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); while (dst < target) { const Sint64 sample0 = (Sint64) ((Sint32) SDL_SwapBE32(src[0])); const Sint64 sample1 = (Sint64) ((Sint32) SDL_SwapBE32(src[1])); const Sint64 sample2 = (Sint64) ((Sint32) SDL_SwapBE32(src[2])); const Sint64 sample3 = (Sint64) ((Sint32) SDL_SwapBE32(src[3])); const Sint64 sample4 = (Sint64) ((Sint32) SDL_SwapBE32(src[4])); const Sint64 sample5 = (Sint64) ((Sint32) SDL_SwapBE32(src[5])); const Sint64 sample6 = (Sint64) ((Sint32) SDL_SwapBE32(src[6])); const Sint64 sample7 = (Sint64) ((Sint32) SDL_SwapBE32(src[7])); src += 32; dst[0] = (Sint32) ((sample0 + last_sample0) >> 1); dst[1] = (Sint32) ((sample1 + last_sample1) >> 1); dst[2] = (Sint32) ((sample2 + last_sample2) >> 1); dst[3] = (Sint32) ((sample3 + last_sample3) >> 1); dst[4] = (Sint32) ((sample4 + last_sample4) >> 1); dst[5] = (Sint32) ((sample5 + last_sample5) >> 1); dst[6] = (Sint32) ((sample6 + last_sample6) >> 1); dst[7] = (Sint32) ((sample7 + last_sample7) >> 1); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 1; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1; const float *target = ((const float *) cvt->buf) - 1; double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); src--; dst[1] = (float) ((sample0 + last_sample0) * 0.5); dst[0] = (float) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); src += 2; dst[0] = (float) ((sample0 + last_sample0) * 0.5); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 1; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1; const float *target = ((const float *) cvt->buf) - 1; double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); src--; dst[3] = (float) sample0; dst[2] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[1] = (float) ((sample0 + last_sample0) * 0.5); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); src += 4; dst[0] = (float) ((sample0 + last_sample0) * 0.5); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 2; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2; const float *target = ((const float *) cvt->buf) - 2; double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 2; dst[3] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); src += 4; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 2; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2; const float *target = ((const float *) cvt->buf) - 2; double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 2; dst[7] = (float) sample1; dst[6] = (float) sample0; dst[5] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[4] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[3] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); src += 8; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 4; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4; const float *target = ((const float *) cvt->buf) - 4; double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 4; dst[7] = (float) ((sample3 + last_sample3) * 0.5); dst[6] = (float) ((sample2 + last_sample2) * 0.5); dst[5] = (float) ((sample1 + last_sample1) * 0.5); dst[4] = (float) ((sample0 + last_sample0) * 0.5); dst[3] = (float) sample3; dst[2] = (float) sample2; dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); src += 8; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 4; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4; const float *target = ((const float *) cvt->buf) - 4; double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 4; dst[15] = (float) sample3; dst[14] = (float) sample2; dst[13] = (float) sample1; dst[12] = (float) sample0; dst[11] = (float) (((3.0 * sample3) + last_sample3) * 0.25); dst[10] = (float) (((3.0 * sample2) + last_sample2) * 0.25); dst[9] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[8] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[7] = (float) ((sample3 + last_sample3) * 0.5); dst[6] = (float) ((sample2 + last_sample2) * 0.5); dst[5] = (float) ((sample1 + last_sample1) * 0.5); dst[4] = (float) ((sample0 + last_sample0) * 0.5); dst[3] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25); dst[2] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); src += 16; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 6; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6; const float *target = ((const float *) cvt->buf) - 6; double last_sample5 = (double) SDL_SwapFloatLE(src[5]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample5 = (double) SDL_SwapFloatLE(src[5]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 6; dst[11] = (float) ((sample5 + last_sample5) * 0.5); dst[10] = (float) ((sample4 + last_sample4) * 0.5); dst[9] = (float) ((sample3 + last_sample3) * 0.5); dst[8] = (float) ((sample2 + last_sample2) * 0.5); dst[7] = (float) ((sample1 + last_sample1) * 0.5); dst[6] = (float) ((sample0 + last_sample0) * 0.5); dst[5] = (float) sample5; dst[4] = (float) sample4; dst[3] = (float) sample3; dst[2] = (float) sample2; dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample5 = (double) SDL_SwapFloatLE(src[5]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample5 = (double) SDL_SwapFloatLE(src[5]); src += 12; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 6; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6; const float *target = ((const float *) cvt->buf) - 6; double last_sample5 = (double) SDL_SwapFloatLE(src[5]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample5 = (double) SDL_SwapFloatLE(src[5]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 6; dst[23] = (float) sample5; dst[22] = (float) sample4; dst[21] = (float) sample3; dst[20] = (float) sample2; dst[19] = (float) sample1; dst[18] = (float) sample0; dst[17] = (float) (((3.0 * sample5) + last_sample5) * 0.25); dst[16] = (float) (((3.0 * sample4) + last_sample4) * 0.25); dst[15] = (float) (((3.0 * sample3) + last_sample3) * 0.25); dst[14] = (float) (((3.0 * sample2) + last_sample2) * 0.25); dst[13] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[12] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[11] = (float) ((sample5 + last_sample5) * 0.5); dst[10] = (float) ((sample4 + last_sample4) * 0.5); dst[9] = (float) ((sample3 + last_sample3) * 0.5); dst[8] = (float) ((sample2 + last_sample2) * 0.5); dst[7] = (float) ((sample1 + last_sample1) * 0.5); dst[6] = (float) ((sample0 + last_sample0) * 0.5); dst[5] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25); dst[4] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25); dst[3] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25); dst[2] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample5 = (double) SDL_SwapFloatLE(src[5]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample5 = (double) SDL_SwapFloatLE(src[5]); src += 24; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 8; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8; const float *target = ((const float *) cvt->buf) - 8; double last_sample7 = (double) SDL_SwapFloatLE(src[7]); double last_sample6 = (double) SDL_SwapFloatLE(src[6]); double last_sample5 = (double) SDL_SwapFloatLE(src[5]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample7 = (double) SDL_SwapFloatLE(src[7]); const double sample6 = (double) SDL_SwapFloatLE(src[6]); const double sample5 = (double) SDL_SwapFloatLE(src[5]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 8; dst[15] = (float) ((sample7 + last_sample7) * 0.5); dst[14] = (float) ((sample6 + last_sample6) * 0.5); dst[13] = (float) ((sample5 + last_sample5) * 0.5); dst[12] = (float) ((sample4 + last_sample4) * 0.5); dst[11] = (float) ((sample3 + last_sample3) * 0.5); dst[10] = (float) ((sample2 + last_sample2) * 0.5); dst[9] = (float) ((sample1 + last_sample1) * 0.5); dst[8] = (float) ((sample0 + last_sample0) * 0.5); dst[7] = (float) sample7; dst[6] = (float) sample6; dst[5] = (float) sample5; dst[4] = (float) sample4; dst[3] = (float) sample3; dst[2] = (float) sample2; dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample5 = (double) SDL_SwapFloatLE(src[5]); double last_sample6 = (double) SDL_SwapFloatLE(src[6]); double last_sample7 = (double) SDL_SwapFloatLE(src[7]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample5 = (double) SDL_SwapFloatLE(src[5]); const double sample6 = (double) SDL_SwapFloatLE(src[6]); const double sample7 = (double) SDL_SwapFloatLE(src[7]); src += 16; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); dst[6] = (float) ((sample6 + last_sample6) * 0.5); dst[7] = (float) ((sample7 + last_sample7) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 8; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8; const float *target = ((const float *) cvt->buf) - 8; double last_sample7 = (double) SDL_SwapFloatLE(src[7]); double last_sample6 = (double) SDL_SwapFloatLE(src[6]); double last_sample5 = (double) SDL_SwapFloatLE(src[5]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); while (dst > target) { const double sample7 = (double) SDL_SwapFloatLE(src[7]); const double sample6 = (double) SDL_SwapFloatLE(src[6]); const double sample5 = (double) SDL_SwapFloatLE(src[5]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample0 = (double) SDL_SwapFloatLE(src[0]); src -= 8; dst[31] = (float) sample7; dst[30] = (float) sample6; dst[29] = (float) sample5; dst[28] = (float) sample4; dst[27] = (float) sample3; dst[26] = (float) sample2; dst[25] = (float) sample1; dst[24] = (float) sample0; dst[23] = (float) (((3.0 * sample7) + last_sample7) * 0.25); dst[22] = (float) (((3.0 * sample6) + last_sample6) * 0.25); dst[21] = (float) (((3.0 * sample5) + last_sample5) * 0.25); dst[20] = (float) (((3.0 * sample4) + last_sample4) * 0.25); dst[19] = (float) (((3.0 * sample3) + last_sample3) * 0.25); dst[18] = (float) (((3.0 * sample2) + last_sample2) * 0.25); dst[17] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[16] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[15] = (float) ((sample7 + last_sample7) * 0.5); dst[14] = (float) ((sample6 + last_sample6) * 0.5); dst[13] = (float) ((sample5 + last_sample5) * 0.5); dst[12] = (float) ((sample4 + last_sample4) * 0.5); dst[11] = (float) ((sample3 + last_sample3) * 0.5); dst[10] = (float) ((sample2 + last_sample2) * 0.5); dst[9] = (float) ((sample1 + last_sample1) * 0.5); dst[8] = (float) ((sample0 + last_sample0) * 0.5); dst[7] = (float) ((sample7 + (3.0 * last_sample7)) * 0.25); dst[6] = (float) ((sample6 + (3.0 * last_sample6)) * 0.25); dst[5] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25); dst[4] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25); dst[3] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25); dst[2] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32LSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32LSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatLE(src[0]); double last_sample1 = (double) SDL_SwapFloatLE(src[1]); double last_sample2 = (double) SDL_SwapFloatLE(src[2]); double last_sample3 = (double) SDL_SwapFloatLE(src[3]); double last_sample4 = (double) SDL_SwapFloatLE(src[4]); double last_sample5 = (double) SDL_SwapFloatLE(src[5]); double last_sample6 = (double) SDL_SwapFloatLE(src[6]); double last_sample7 = (double) SDL_SwapFloatLE(src[7]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatLE(src[0]); const double sample1 = (double) SDL_SwapFloatLE(src[1]); const double sample2 = (double) SDL_SwapFloatLE(src[2]); const double sample3 = (double) SDL_SwapFloatLE(src[3]); const double sample4 = (double) SDL_SwapFloatLE(src[4]); const double sample5 = (double) SDL_SwapFloatLE(src[5]); const double sample6 = (double) SDL_SwapFloatLE(src[6]); const double sample7 = (double) SDL_SwapFloatLE(src[7]); src += 32; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); dst[6] = (float) ((sample6 + last_sample6) * 0.5); dst[7] = (float) ((sample7 + last_sample7) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 1; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1; const float *target = ((const float *) cvt->buf) - 1; double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); src--; dst[1] = (float) ((sample0 + last_sample0) * 0.5); dst[0] = (float) sample0; last_sample0 = sample0; dst -= 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_1c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); src += 2; dst[0] = (float) ((sample0 + last_sample0) * 0.5); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 1; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 1; const float *target = ((const float *) cvt->buf) - 1; double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); src--; dst[3] = (float) sample0; dst[2] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[1] = (float) ((sample0 + last_sample0) * 0.5); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_1c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 1 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); src += 4; dst[0] = (float) ((sample0 + last_sample0) * 0.5); last_sample0 = sample0; dst++; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 2; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2; const float *target = ((const float *) cvt->buf) - 2; double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 2; dst[3] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample1 = sample1; last_sample0 = sample0; dst -= 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_2c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); src += 4; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 2; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 2; const float *target = ((const float *) cvt->buf) - 2; double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 2; dst[7] = (float) sample1; dst[6] = (float) sample0; dst[5] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[4] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[3] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_2c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 2 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); src += 8; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); last_sample0 = sample0; last_sample1 = sample1; dst += 2; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 4; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4; const float *target = ((const float *) cvt->buf) - 4; double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 4; dst[7] = (float) ((sample3 + last_sample3) * 0.5); dst[6] = (float) ((sample2 + last_sample2) * 0.5); dst[5] = (float) ((sample1 + last_sample1) * 0.5); dst[4] = (float) ((sample0 + last_sample0) * 0.5); dst[3] = (float) sample3; dst[2] = (float) sample2; dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_4c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); src += 8; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 4; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 4; const float *target = ((const float *) cvt->buf) - 4; double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 4; dst[15] = (float) sample3; dst[14] = (float) sample2; dst[13] = (float) sample1; dst[12] = (float) sample0; dst[11] = (float) (((3.0 * sample3) + last_sample3) * 0.25); dst[10] = (float) (((3.0 * sample2) + last_sample2) * 0.25); dst[9] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[8] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[7] = (float) ((sample3 + last_sample3) * 0.5); dst[6] = (float) ((sample2 + last_sample2) * 0.5); dst[5] = (float) ((sample1 + last_sample1) * 0.5); dst[4] = (float) ((sample0 + last_sample0) * 0.5); dst[3] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25); dst[2] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_4c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 4 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); src += 16; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; dst += 4; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 6; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6; const float *target = ((const float *) cvt->buf) - 6; double last_sample5 = (double) SDL_SwapFloatBE(src[5]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample5 = (double) SDL_SwapFloatBE(src[5]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 6; dst[11] = (float) ((sample5 + last_sample5) * 0.5); dst[10] = (float) ((sample4 + last_sample4) * 0.5); dst[9] = (float) ((sample3 + last_sample3) * 0.5); dst[8] = (float) ((sample2 + last_sample2) * 0.5); dst[7] = (float) ((sample1 + last_sample1) * 0.5); dst[6] = (float) ((sample0 + last_sample0) * 0.5); dst[5] = (float) sample5; dst[4] = (float) sample4; dst[3] = (float) sample3; dst[2] = (float) sample2; dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 12; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_6c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample5 = (double) SDL_SwapFloatBE(src[5]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample5 = (double) SDL_SwapFloatBE(src[5]); src += 12; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 6; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 6; const float *target = ((const float *) cvt->buf) - 6; double last_sample5 = (double) SDL_SwapFloatBE(src[5]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample5 = (double) SDL_SwapFloatBE(src[5]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 6; dst[23] = (float) sample5; dst[22] = (float) sample4; dst[21] = (float) sample3; dst[20] = (float) sample2; dst[19] = (float) sample1; dst[18] = (float) sample0; dst[17] = (float) (((3.0 * sample5) + last_sample5) * 0.25); dst[16] = (float) (((3.0 * sample4) + last_sample4) * 0.25); dst[15] = (float) (((3.0 * sample3) + last_sample3) * 0.25); dst[14] = (float) (((3.0 * sample2) + last_sample2) * 0.25); dst[13] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[12] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[11] = (float) ((sample5 + last_sample5) * 0.5); dst[10] = (float) ((sample4 + last_sample4) * 0.5); dst[9] = (float) ((sample3 + last_sample3) * 0.5); dst[8] = (float) ((sample2 + last_sample2) * 0.5); dst[7] = (float) ((sample1 + last_sample1) * 0.5); dst[6] = (float) ((sample0 + last_sample0) * 0.5); dst[5] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25); dst[4] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25); dst[3] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25); dst[2] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 24; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_6c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 6 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample5 = (double) SDL_SwapFloatBE(src[5]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample5 = (double) SDL_SwapFloatBE(src[5]); src += 24; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; dst += 6; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x2) AUDIO_F32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 2; float *dst = ((float *) (cvt->buf + dstsize)) - 8; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8; const float *target = ((const float *) cvt->buf) - 8; double last_sample7 = (double) SDL_SwapFloatBE(src[7]); double last_sample6 = (double) SDL_SwapFloatBE(src[6]); double last_sample5 = (double) SDL_SwapFloatBE(src[5]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample7 = (double) SDL_SwapFloatBE(src[7]); const double sample6 = (double) SDL_SwapFloatBE(src[6]); const double sample5 = (double) SDL_SwapFloatBE(src[5]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 8; dst[15] = (float) ((sample7 + last_sample7) * 0.5); dst[14] = (float) ((sample6 + last_sample6) * 0.5); dst[13] = (float) ((sample5 + last_sample5) * 0.5); dst[12] = (float) ((sample4 + last_sample4) * 0.5); dst[11] = (float) ((sample3 + last_sample3) * 0.5); dst[10] = (float) ((sample2 + last_sample2) * 0.5); dst[9] = (float) ((sample1 + last_sample1) * 0.5); dst[8] = (float) ((sample0 + last_sample0) * 0.5); dst[7] = (float) sample7; dst[6] = (float) sample6; dst[5] = (float) sample5; dst[4] = (float) sample4; dst[3] = (float) sample3; dst[2] = (float) sample2; dst[1] = (float) sample1; dst[0] = (float) sample0; last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 16; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_8c_x2(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x2) AUDIO_F32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 2; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample5 = (double) SDL_SwapFloatBE(src[5]); double last_sample6 = (double) SDL_SwapFloatBE(src[6]); double last_sample7 = (double) SDL_SwapFloatBE(src[7]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample5 = (double) SDL_SwapFloatBE(src[5]); const double sample6 = (double) SDL_SwapFloatBE(src[6]); const double sample7 = (double) SDL_SwapFloatBE(src[7]); src += 16; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); dst[6] = (float) ((sample6 + last_sample6) * 0.5); dst[7] = (float) ((sample7 + last_sample7) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Upsample_F32MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Upsample (x4) AUDIO_F32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt * 4; float *dst = ((float *) (cvt->buf + dstsize)) - 8; const float *src = ((float *) (cvt->buf + cvt->len_cvt)) - 8; const float *target = ((const float *) cvt->buf) - 8; double last_sample7 = (double) SDL_SwapFloatBE(src[7]); double last_sample6 = (double) SDL_SwapFloatBE(src[6]); double last_sample5 = (double) SDL_SwapFloatBE(src[5]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); while (dst > target) { const double sample7 = (double) SDL_SwapFloatBE(src[7]); const double sample6 = (double) SDL_SwapFloatBE(src[6]); const double sample5 = (double) SDL_SwapFloatBE(src[5]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample0 = (double) SDL_SwapFloatBE(src[0]); src -= 8; dst[31] = (float) sample7; dst[30] = (float) sample6; dst[29] = (float) sample5; dst[28] = (float) sample4; dst[27] = (float) sample3; dst[26] = (float) sample2; dst[25] = (float) sample1; dst[24] = (float) sample0; dst[23] = (float) (((3.0 * sample7) + last_sample7) * 0.25); dst[22] = (float) (((3.0 * sample6) + last_sample6) * 0.25); dst[21] = (float) (((3.0 * sample5) + last_sample5) * 0.25); dst[20] = (float) (((3.0 * sample4) + last_sample4) * 0.25); dst[19] = (float) (((3.0 * sample3) + last_sample3) * 0.25); dst[18] = (float) (((3.0 * sample2) + last_sample2) * 0.25); dst[17] = (float) (((3.0 * sample1) + last_sample1) * 0.25); dst[16] = (float) (((3.0 * sample0) + last_sample0) * 0.25); dst[15] = (float) ((sample7 + last_sample7) * 0.5); dst[14] = (float) ((sample6 + last_sample6) * 0.5); dst[13] = (float) ((sample5 + last_sample5) * 0.5); dst[12] = (float) ((sample4 + last_sample4) * 0.5); dst[11] = (float) ((sample3 + last_sample3) * 0.5); dst[10] = (float) ((sample2 + last_sample2) * 0.5); dst[9] = (float) ((sample1 + last_sample1) * 0.5); dst[8] = (float) ((sample0 + last_sample0) * 0.5); dst[7] = (float) ((sample7 + (3.0 * last_sample7)) * 0.25); dst[6] = (float) ((sample6 + (3.0 * last_sample6)) * 0.25); dst[5] = (float) ((sample5 + (3.0 * last_sample5)) * 0.25); dst[4] = (float) ((sample4 + (3.0 * last_sample4)) * 0.25); dst[3] = (float) ((sample3 + (3.0 * last_sample3)) * 0.25); dst[2] = (float) ((sample2 + (3.0 * last_sample2)) * 0.25); dst[1] = (float) ((sample1 + (3.0 * last_sample1)) * 0.25); dst[0] = (float) ((sample0 + (3.0 * last_sample0)) * 0.25); last_sample7 = sample7; last_sample6 = sample6; last_sample5 = sample5; last_sample4 = sample4; last_sample3 = sample3; last_sample2 = sample2; last_sample1 = sample1; last_sample0 = sample0; dst -= 32; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } static void SDLCALL SDL_Downsample_F32MSB_8c_x4(SDL_AudioCVT * cvt, SDL_AudioFormat format) { #if DEBUG_CONVERT fprintf(stderr, "Downsample (x4) AUDIO_F32MSB, 8 channels.\n"); #endif const int srcsize = cvt->len_cvt; const int dstsize = cvt->len_cvt / 4; float *dst = (float *) cvt->buf; const float *src = (float *) cvt->buf; const float *target = (const float *) (cvt->buf + dstsize); double last_sample0 = (double) SDL_SwapFloatBE(src[0]); double last_sample1 = (double) SDL_SwapFloatBE(src[1]); double last_sample2 = (double) SDL_SwapFloatBE(src[2]); double last_sample3 = (double) SDL_SwapFloatBE(src[3]); double last_sample4 = (double) SDL_SwapFloatBE(src[4]); double last_sample5 = (double) SDL_SwapFloatBE(src[5]); double last_sample6 = (double) SDL_SwapFloatBE(src[6]); double last_sample7 = (double) SDL_SwapFloatBE(src[7]); while (dst < target) { const double sample0 = (double) SDL_SwapFloatBE(src[0]); const double sample1 = (double) SDL_SwapFloatBE(src[1]); const double sample2 = (double) SDL_SwapFloatBE(src[2]); const double sample3 = (double) SDL_SwapFloatBE(src[3]); const double sample4 = (double) SDL_SwapFloatBE(src[4]); const double sample5 = (double) SDL_SwapFloatBE(src[5]); const double sample6 = (double) SDL_SwapFloatBE(src[6]); const double sample7 = (double) SDL_SwapFloatBE(src[7]); src += 32; dst[0] = (float) ((sample0 + last_sample0) * 0.5); dst[1] = (float) ((sample1 + last_sample1) * 0.5); dst[2] = (float) ((sample2 + last_sample2) * 0.5); dst[3] = (float) ((sample3 + last_sample3) * 0.5); dst[4] = (float) ((sample4 + last_sample4) * 0.5); dst[5] = (float) ((sample5 + last_sample5) * 0.5); dst[6] = (float) ((sample6 + last_sample6) * 0.5); dst[7] = (float) ((sample7 + last_sample7) * 0.5); last_sample0 = sample0; last_sample1 = sample1; last_sample2 = sample2; last_sample3 = sample3; last_sample4 = sample4; last_sample5 = sample5; last_sample6 = sample6; last_sample7 = sample7; dst += 8; } cvt->len_cvt = dstsize; if (cvt->filters[++cvt->filter_index]) { cvt->filters[cvt->filter_index] (cvt, format); } } #endif /* !LESS_RESAMPLERS */ #endif /* !NO_RESAMPLERS */ const SDL_AudioRateFilters sdl_audio_rate_filters[] = { #if !NO_RESAMPLERS { AUDIO_U8, 1, 0, 0, SDL_Downsample_U8_1c }, { AUDIO_U8, 1, 1, 0, SDL_Upsample_U8_1c }, { AUDIO_U8, 2, 0, 0, SDL_Downsample_U8_2c }, { AUDIO_U8, 2, 1, 0, SDL_Upsample_U8_2c }, { AUDIO_U8, 4, 0, 0, SDL_Downsample_U8_4c }, { AUDIO_U8, 4, 1, 0, SDL_Upsample_U8_4c }, { AUDIO_U8, 6, 0, 0, SDL_Downsample_U8_6c }, { AUDIO_U8, 6, 1, 0, SDL_Upsample_U8_6c }, { AUDIO_U8, 8, 0, 0, SDL_Downsample_U8_8c }, { AUDIO_U8, 8, 1, 0, SDL_Upsample_U8_8c }, { AUDIO_S8, 1, 0, 0, SDL_Downsample_S8_1c }, { AUDIO_S8, 1, 1, 0, SDL_Upsample_S8_1c }, { AUDIO_S8, 2, 0, 0, SDL_Downsample_S8_2c }, { AUDIO_S8, 2, 1, 0, SDL_Upsample_S8_2c }, { AUDIO_S8, 4, 0, 0, SDL_Downsample_S8_4c }, { AUDIO_S8, 4, 1, 0, SDL_Upsample_S8_4c }, { AUDIO_S8, 6, 0, 0, SDL_Downsample_S8_6c }, { AUDIO_S8, 6, 1, 0, SDL_Upsample_S8_6c }, { AUDIO_S8, 8, 0, 0, SDL_Downsample_S8_8c }, { AUDIO_S8, 8, 1, 0, SDL_Upsample_S8_8c }, { AUDIO_U16LSB, 1, 0, 0, SDL_Downsample_U16LSB_1c }, { AUDIO_U16LSB, 1, 1, 0, SDL_Upsample_U16LSB_1c }, { AUDIO_U16LSB, 2, 0, 0, SDL_Downsample_U16LSB_2c }, { AUDIO_U16LSB, 2, 1, 0, SDL_Upsample_U16LSB_2c }, { AUDIO_U16LSB, 4, 0, 0, SDL_Downsample_U16LSB_4c }, { AUDIO_U16LSB, 4, 1, 0, SDL_Upsample_U16LSB_4c }, { AUDIO_U16LSB, 6, 0, 0, SDL_Downsample_U16LSB_6c }, { AUDIO_U16LSB, 6, 1, 0, SDL_Upsample_U16LSB_6c }, { AUDIO_U16LSB, 8, 0, 0, SDL_Downsample_U16LSB_8c }, { AUDIO_U16LSB, 8, 1, 0, SDL_Upsample_U16LSB_8c }, { AUDIO_S16LSB, 1, 0, 0, SDL_Downsample_S16LSB_1c }, { AUDIO_S16LSB, 1, 1, 0, SDL_Upsample_S16LSB_1c }, { AUDIO_S16LSB, 2, 0, 0, SDL_Downsample_S16LSB_2c }, { AUDIO_S16LSB, 2, 1, 0, SDL_Upsample_S16LSB_2c }, { AUDIO_S16LSB, 4, 0, 0, SDL_Downsample_S16LSB_4c }, { AUDIO_S16LSB, 4, 1, 0, SDL_Upsample_S16LSB_4c }, { AUDIO_S16LSB, 6, 0, 0, SDL_Downsample_S16LSB_6c }, { AUDIO_S16LSB, 6, 1, 0, SDL_Upsample_S16LSB_6c }, { AUDIO_S16LSB, 8, 0, 0, SDL_Downsample_S16LSB_8c }, { AUDIO_S16LSB, 8, 1, 0, SDL_Upsample_S16LSB_8c }, { AUDIO_U16MSB, 1, 0, 0, SDL_Downsample_U16MSB_1c }, { AUDIO_U16MSB, 1, 1, 0, SDL_Upsample_U16MSB_1c }, { AUDIO_U16MSB, 2, 0, 0, SDL_Downsample_U16MSB_2c }, { AUDIO_U16MSB, 2, 1, 0, SDL_Upsample_U16MSB_2c }, { AUDIO_U16MSB, 4, 0, 0, SDL_Downsample_U16MSB_4c }, { AUDIO_U16MSB, 4, 1, 0, SDL_Upsample_U16MSB_4c }, { AUDIO_U16MSB, 6, 0, 0, SDL_Downsample_U16MSB_6c }, { AUDIO_U16MSB, 6, 1, 0, SDL_Upsample_U16MSB_6c }, { AUDIO_U16MSB, 8, 0, 0, SDL_Downsample_U16MSB_8c }, { AUDIO_U16MSB, 8, 1, 0, SDL_Upsample_U16MSB_8c }, { AUDIO_S16MSB, 1, 0, 0, SDL_Downsample_S16MSB_1c }, { AUDIO_S16MSB, 1, 1, 0, SDL_Upsample_S16MSB_1c }, { AUDIO_S16MSB, 2, 0, 0, SDL_Downsample_S16MSB_2c }, { AUDIO_S16MSB, 2, 1, 0, SDL_Upsample_S16MSB_2c }, { AUDIO_S16MSB, 4, 0, 0, SDL_Downsample_S16MSB_4c }, { AUDIO_S16MSB, 4, 1, 0, SDL_Upsample_S16MSB_4c }, { AUDIO_S16MSB, 6, 0, 0, SDL_Downsample_S16MSB_6c }, { AUDIO_S16MSB, 6, 1, 0, SDL_Upsample_S16MSB_6c }, { AUDIO_S16MSB, 8, 0, 0, SDL_Downsample_S16MSB_8c }, { AUDIO_S16MSB, 8, 1, 0, SDL_Upsample_S16MSB_8c }, { AUDIO_S32LSB, 1, 0, 0, SDL_Downsample_S32LSB_1c }, { AUDIO_S32LSB, 1, 1, 0, SDL_Upsample_S32LSB_1c }, { AUDIO_S32LSB, 2, 0, 0, SDL_Downsample_S32LSB_2c }, { AUDIO_S32LSB, 2, 1, 0, SDL_Upsample_S32LSB_2c }, { AUDIO_S32LSB, 4, 0, 0, SDL_Downsample_S32LSB_4c }, { AUDIO_S32LSB, 4, 1, 0, SDL_Upsample_S32LSB_4c }, { AUDIO_S32LSB, 6, 0, 0, SDL_Downsample_S32LSB_6c }, { AUDIO_S32LSB, 6, 1, 0, SDL_Upsample_S32LSB_6c }, { AUDIO_S32LSB, 8, 0, 0, SDL_Downsample_S32LSB_8c }, { AUDIO_S32LSB, 8, 1, 0, SDL_Upsample_S32LSB_8c }, { AUDIO_S32MSB, 1, 0, 0, SDL_Downsample_S32MSB_1c }, { AUDIO_S32MSB, 1, 1, 0, SDL_Upsample_S32MSB_1c }, { AUDIO_S32MSB, 2, 0, 0, SDL_Downsample_S32MSB_2c }, { AUDIO_S32MSB, 2, 1, 0, SDL_Upsample_S32MSB_2c }, { AUDIO_S32MSB, 4, 0, 0, SDL_Downsample_S32MSB_4c }, { AUDIO_S32MSB, 4, 1, 0, SDL_Upsample_S32MSB_4c }, { AUDIO_S32MSB, 6, 0, 0, SDL_Downsample_S32MSB_6c }, { AUDIO_S32MSB, 6, 1, 0, SDL_Upsample_S32MSB_6c }, { AUDIO_S32MSB, 8, 0, 0, SDL_Downsample_S32MSB_8c }, { AUDIO_S32MSB, 8, 1, 0, SDL_Upsample_S32MSB_8c }, { AUDIO_F32LSB, 1, 0, 0, SDL_Downsample_F32LSB_1c }, { AUDIO_F32LSB, 1, 1, 0, SDL_Upsample_F32LSB_1c }, { AUDIO_F32LSB, 2, 0, 0, SDL_Downsample_F32LSB_2c }, { AUDIO_F32LSB, 2, 1, 0, SDL_Upsample_F32LSB_2c }, { AUDIO_F32LSB, 4, 0, 0, SDL_Downsample_F32LSB_4c }, { AUDIO_F32LSB, 4, 1, 0, SDL_Upsample_F32LSB_4c }, { AUDIO_F32LSB, 6, 0, 0, SDL_Downsample_F32LSB_6c }, { AUDIO_F32LSB, 6, 1, 0, SDL_Upsample_F32LSB_6c }, { AUDIO_F32LSB, 8, 0, 0, SDL_Downsample_F32LSB_8c }, { AUDIO_F32LSB, 8, 1, 0, SDL_Upsample_F32LSB_8c }, { AUDIO_F32MSB, 1, 0, 0, SDL_Downsample_F32MSB_1c }, { AUDIO_F32MSB, 1, 1, 0, SDL_Upsample_F32MSB_1c }, { AUDIO_F32MSB, 2, 0, 0, SDL_Downsample_F32MSB_2c }, { AUDIO_F32MSB, 2, 1, 0, SDL_Upsample_F32MSB_2c }, { AUDIO_F32MSB, 4, 0, 0, SDL_Downsample_F32MSB_4c }, { AUDIO_F32MSB, 4, 1, 0, SDL_Upsample_F32MSB_4c }, { AUDIO_F32MSB, 6, 0, 0, SDL_Downsample_F32MSB_6c }, { AUDIO_F32MSB, 6, 1, 0, SDL_Upsample_F32MSB_6c }, { AUDIO_F32MSB, 8, 0, 0, SDL_Downsample_F32MSB_8c }, { AUDIO_F32MSB, 8, 1, 0, SDL_Upsample_F32MSB_8c }, #if !LESS_RESAMPLERS { AUDIO_U8, 1, 0, 2, SDL_Downsample_U8_1c_x2 }, { AUDIO_U8, 1, 1, 2, SDL_Upsample_U8_1c_x2 }, { AUDIO_U8, 1, 0, 4, SDL_Downsample_U8_1c_x4 }, { AUDIO_U8, 1, 1, 4, SDL_Upsample_U8_1c_x4 }, { AUDIO_U8, 2, 0, 2, SDL_Downsample_U8_2c_x2 }, { AUDIO_U8, 2, 1, 2, SDL_Upsample_U8_2c_x2 }, { AUDIO_U8, 2, 0, 4, SDL_Downsample_U8_2c_x4 }, { AUDIO_U8, 2, 1, 4, SDL_Upsample_U8_2c_x4 }, { AUDIO_U8, 4, 0, 2, SDL_Downsample_U8_4c_x2 }, { AUDIO_U8, 4, 1, 2, SDL_Upsample_U8_4c_x2 }, { AUDIO_U8, 4, 0, 4, SDL_Downsample_U8_4c_x4 }, { AUDIO_U8, 4, 1, 4, SDL_Upsample_U8_4c_x4 }, { AUDIO_U8, 6, 0, 2, SDL_Downsample_U8_6c_x2 }, { AUDIO_U8, 6, 1, 2, SDL_Upsample_U8_6c_x2 }, { AUDIO_U8, 6, 0, 4, SDL_Downsample_U8_6c_x4 }, { AUDIO_U8, 6, 1, 4, SDL_Upsample_U8_6c_x4 }, { AUDIO_U8, 8, 0, 2, SDL_Downsample_U8_8c_x2 }, { AUDIO_U8, 8, 1, 2, SDL_Upsample_U8_8c_x2 }, { AUDIO_U8, 8, 0, 4, SDL_Downsample_U8_8c_x4 }, { AUDIO_U8, 8, 1, 4, SDL_Upsample_U8_8c_x4 }, { AUDIO_S8, 1, 0, 2, SDL_Downsample_S8_1c_x2 }, { AUDIO_S8, 1, 1, 2, SDL_Upsample_S8_1c_x2 }, { AUDIO_S8, 1, 0, 4, SDL_Downsample_S8_1c_x4 }, { AUDIO_S8, 1, 1, 4, SDL_Upsample_S8_1c_x4 }, { AUDIO_S8, 2, 0, 2, SDL_Downsample_S8_2c_x2 }, { AUDIO_S8, 2, 1, 2, SDL_Upsample_S8_2c_x2 }, { AUDIO_S8, 2, 0, 4, SDL_Downsample_S8_2c_x4 }, { AUDIO_S8, 2, 1, 4, SDL_Upsample_S8_2c_x4 }, { AUDIO_S8, 4, 0, 2, SDL_Downsample_S8_4c_x2 }, { AUDIO_S8, 4, 1, 2, SDL_Upsample_S8_4c_x2 }, { AUDIO_S8, 4, 0, 4, SDL_Downsample_S8_4c_x4 }, { AUDIO_S8, 4, 1, 4, SDL_Upsample_S8_4c_x4 }, { AUDIO_S8, 6, 0, 2, SDL_Downsample_S8_6c_x2 }, { AUDIO_S8, 6, 1, 2, SDL_Upsample_S8_6c_x2 }, { AUDIO_S8, 6, 0, 4, SDL_Downsample_S8_6c_x4 }, { AUDIO_S8, 6, 1, 4, SDL_Upsample_S8_6c_x4 }, { AUDIO_S8, 8, 0, 2, SDL_Downsample_S8_8c_x2 }, { AUDIO_S8, 8, 1, 2, SDL_Upsample_S8_8c_x2 }, { AUDIO_S8, 8, 0, 4, SDL_Downsample_S8_8c_x4 }, { AUDIO_S8, 8, 1, 4, SDL_Upsample_S8_8c_x4 }, { AUDIO_U16LSB, 1, 0, 2, SDL_Downsample_U16LSB_1c_x2 }, { AUDIO_U16LSB, 1, 1, 2, SDL_Upsample_U16LSB_1c_x2 }, { AUDIO_U16LSB, 1, 0, 4, SDL_Downsample_U16LSB_1c_x4 }, { AUDIO_U16LSB, 1, 1, 4, SDL_Upsample_U16LSB_1c_x4 }, { AUDIO_U16LSB, 2, 0, 2, SDL_Downsample_U16LSB_2c_x2 }, { AUDIO_U16LSB, 2, 1, 2, SDL_Upsample_U16LSB_2c_x2 }, { AUDIO_U16LSB, 2, 0, 4, SDL_Downsample_U16LSB_2c_x4 }, { AUDIO_U16LSB, 2, 1, 4, SDL_Upsample_U16LSB_2c_x4 }, { AUDIO_U16LSB, 4, 0, 2, SDL_Downsample_U16LSB_4c_x2 }, { AUDIO_U16LSB, 4, 1, 2, SDL_Upsample_U16LSB_4c_x2 }, { AUDIO_U16LSB, 4, 0, 4, SDL_Downsample_U16LSB_4c_x4 }, { AUDIO_U16LSB, 4, 1, 4, SDL_Upsample_U16LSB_4c_x4 }, { AUDIO_U16LSB, 6, 0, 2, SDL_Downsample_U16LSB_6c_x2 }, { AUDIO_U16LSB, 6, 1, 2, SDL_Upsample_U16LSB_6c_x2 }, { AUDIO_U16LSB, 6, 0, 4, SDL_Downsample_U16LSB_6c_x4 }, { AUDIO_U16LSB, 6, 1, 4, SDL_Upsample_U16LSB_6c_x4 }, { AUDIO_U16LSB, 8, 0, 2, SDL_Downsample_U16LSB_8c_x2 }, { AUDIO_U16LSB, 8, 1, 2, SDL_Upsample_U16LSB_8c_x2 }, { AUDIO_U16LSB, 8, 0, 4, SDL_Downsample_U16LSB_8c_x4 }, { AUDIO_U16LSB, 8, 1, 4, SDL_Upsample_U16LSB_8c_x4 }, { AUDIO_S16LSB, 1, 0, 2, SDL_Downsample_S16LSB_1c_x2 }, { AUDIO_S16LSB, 1, 1, 2, SDL_Upsample_S16LSB_1c_x2 }, { AUDIO_S16LSB, 1, 0, 4, SDL_Downsample_S16LSB_1c_x4 }, { AUDIO_S16LSB, 1, 1, 4, SDL_Upsample_S16LSB_1c_x4 }, { AUDIO_S16LSB, 2, 0, 2, SDL_Downsample_S16LSB_2c_x2 }, { AUDIO_S16LSB, 2, 1, 2, SDL_Upsample_S16LSB_2c_x2 }, { AUDIO_S16LSB, 2, 0, 4, SDL_Downsample_S16LSB_2c_x4 }, { AUDIO_S16LSB, 2, 1, 4, SDL_Upsample_S16LSB_2c_x4 }, { AUDIO_S16LSB, 4, 0, 2, SDL_Downsample_S16LSB_4c_x2 }, { AUDIO_S16LSB, 4, 1, 2, SDL_Upsample_S16LSB_4c_x2 }, { AUDIO_S16LSB, 4, 0, 4, SDL_Downsample_S16LSB_4c_x4 }, { AUDIO_S16LSB, 4, 1, 4, SDL_Upsample_S16LSB_4c_x4 }, { AUDIO_S16LSB, 6, 0, 2, SDL_Downsample_S16LSB_6c_x2 }, { AUDIO_S16LSB, 6, 1, 2, SDL_Upsample_S16LSB_6c_x2 }, { AUDIO_S16LSB, 6, 0, 4, SDL_Downsample_S16LSB_6c_x4 }, { AUDIO_S16LSB, 6, 1, 4, SDL_Upsample_S16LSB_6c_x4 }, { AUDIO_S16LSB, 8, 0, 2, SDL_Downsample_S16LSB_8c_x2 }, { AUDIO_S16LSB, 8, 1, 2, SDL_Upsample_S16LSB_8c_x2 }, { AUDIO_S16LSB, 8, 0, 4, SDL_Downsample_S16LSB_8c_x4 }, { AUDIO_S16LSB, 8, 1, 4, SDL_Upsample_S16LSB_8c_x4 }, { AUDIO_U16MSB, 1, 0, 2, SDL_Downsample_U16MSB_1c_x2 }, { AUDIO_U16MSB, 1, 1, 2, SDL_Upsample_U16MSB_1c_x2 }, { AUDIO_U16MSB, 1, 0, 4, SDL_Downsample_U16MSB_1c_x4 }, { AUDIO_U16MSB, 1, 1, 4, SDL_Upsample_U16MSB_1c_x4 }, { AUDIO_U16MSB, 2, 0, 2, SDL_Downsample_U16MSB_2c_x2 }, { AUDIO_U16MSB, 2, 1, 2, SDL_Upsample_U16MSB_2c_x2 }, { AUDIO_U16MSB, 2, 0, 4, SDL_Downsample_U16MSB_2c_x4 }, { AUDIO_U16MSB, 2, 1, 4, SDL_Upsample_U16MSB_2c_x4 }, { AUDIO_U16MSB, 4, 0, 2, SDL_Downsample_U16MSB_4c_x2 }, { AUDIO_U16MSB, 4, 1, 2, SDL_Upsample_U16MSB_4c_x2 }, { AUDIO_U16MSB, 4, 0, 4, SDL_Downsample_U16MSB_4c_x4 }, { AUDIO_U16MSB, 4, 1, 4, SDL_Upsample_U16MSB_4c_x4 }, { AUDIO_U16MSB, 6, 0, 2, SDL_Downsample_U16MSB_6c_x2 }, { AUDIO_U16MSB, 6, 1, 2, SDL_Upsample_U16MSB_6c_x2 }, { AUDIO_U16MSB, 6, 0, 4, SDL_Downsample_U16MSB_6c_x4 }, { AUDIO_U16MSB, 6, 1, 4, SDL_Upsample_U16MSB_6c_x4 }, { AUDIO_U16MSB, 8, 0, 2, SDL_Downsample_U16MSB_8c_x2 }, { AUDIO_U16MSB, 8, 1, 2, SDL_Upsample_U16MSB_8c_x2 }, { AUDIO_U16MSB, 8, 0, 4, SDL_Downsample_U16MSB_8c_x4 }, { AUDIO_U16MSB, 8, 1, 4, SDL_Upsample_U16MSB_8c_x4 }, { AUDIO_S16MSB, 1, 0, 2, SDL_Downsample_S16MSB_1c_x2 }, { AUDIO_S16MSB, 1, 1, 2, SDL_Upsample_S16MSB_1c_x2 }, { AUDIO_S16MSB, 1, 0, 4, SDL_Downsample_S16MSB_1c_x4 }, { AUDIO_S16MSB, 1, 1, 4, SDL_Upsample_S16MSB_1c_x4 }, { AUDIO_S16MSB, 2, 0, 2, SDL_Downsample_S16MSB_2c_x2 }, { AUDIO_S16MSB, 2, 1, 2, SDL_Upsample_S16MSB_2c_x2 }, { AUDIO_S16MSB, 2, 0, 4, SDL_Downsample_S16MSB_2c_x4 }, { AUDIO_S16MSB, 2, 1, 4, SDL_Upsample_S16MSB_2c_x4 }, { AUDIO_S16MSB, 4, 0, 2, SDL_Downsample_S16MSB_4c_x2 }, { AUDIO_S16MSB, 4, 1, 2, SDL_Upsample_S16MSB_4c_x2 }, { AUDIO_S16MSB, 4, 0, 4, SDL_Downsample_S16MSB_4c_x4 }, { AUDIO_S16MSB, 4, 1, 4, SDL_Upsample_S16MSB_4c_x4 }, { AUDIO_S16MSB, 6, 0, 2, SDL_Downsample_S16MSB_6c_x2 }, { AUDIO_S16MSB, 6, 1, 2, SDL_Upsample_S16MSB_6c_x2 }, { AUDIO_S16MSB, 6, 0, 4, SDL_Downsample_S16MSB_6c_x4 }, { AUDIO_S16MSB, 6, 1, 4, SDL_Upsample_S16MSB_6c_x4 }, { AUDIO_S16MSB, 8, 0, 2, SDL_Downsample_S16MSB_8c_x2 }, { AUDIO_S16MSB, 8, 1, 2, SDL_Upsample_S16MSB_8c_x2 }, { AUDIO_S16MSB, 8, 0, 4, SDL_Downsample_S16MSB_8c_x4 }, { AUDIO_S16MSB, 8, 1, 4, SDL_Upsample_S16MSB_8c_x4 }, { AUDIO_S32LSB, 1, 0, 2, SDL_Downsample_S32LSB_1c_x2 }, { AUDIO_S32LSB, 1, 1, 2, SDL_Upsample_S32LSB_1c_x2 }, { AUDIO_S32LSB, 1, 0, 4, SDL_Downsample_S32LSB_1c_x4 }, { AUDIO_S32LSB, 1, 1, 4, SDL_Upsample_S32LSB_1c_x4 }, { AUDIO_S32LSB, 2, 0, 2, SDL_Downsample_S32LSB_2c_x2 }, { AUDIO_S32LSB, 2, 1, 2, SDL_Upsample_S32LSB_2c_x2 }, { AUDIO_S32LSB, 2, 0, 4, SDL_Downsample_S32LSB_2c_x4 }, { AUDIO_S32LSB, 2, 1, 4, SDL_Upsample_S32LSB_2c_x4 }, { AUDIO_S32LSB, 4, 0, 2, SDL_Downsample_S32LSB_4c_x2 }, { AUDIO_S32LSB, 4, 1, 2, SDL_Upsample_S32LSB_4c_x2 }, { AUDIO_S32LSB, 4, 0, 4, SDL_Downsample_S32LSB_4c_x4 }, { AUDIO_S32LSB, 4, 1, 4, SDL_Upsample_S32LSB_4c_x4 }, { AUDIO_S32LSB, 6, 0, 2, SDL_Downsample_S32LSB_6c_x2 }, { AUDIO_S32LSB, 6, 1, 2, SDL_Upsample_S32LSB_6c_x2 }, { AUDIO_S32LSB, 6, 0, 4, SDL_Downsample_S32LSB_6c_x4 }, { AUDIO_S32LSB, 6, 1, 4, SDL_Upsample_S32LSB_6c_x4 }, { AUDIO_S32LSB, 8, 0, 2, SDL_Downsample_S32LSB_8c_x2 }, { AUDIO_S32LSB, 8, 1, 2, SDL_Upsample_S32LSB_8c_x2 }, { AUDIO_S32LSB, 8, 0, 4, SDL_Downsample_S32LSB_8c_x4 }, { AUDIO_S32LSB, 8, 1, 4, SDL_Upsample_S32LSB_8c_x4 }, { AUDIO_S32MSB, 1, 0, 2, SDL_Downsample_S32MSB_1c_x2 }, { AUDIO_S32MSB, 1, 1, 2, SDL_Upsample_S32MSB_1c_x2 }, { AUDIO_S32MSB, 1, 0, 4, SDL_Downsample_S32MSB_1c_x4 }, { AUDIO_S32MSB, 1, 1, 4, SDL_Upsample_S32MSB_1c_x4 }, { AUDIO_S32MSB, 2, 0, 2, SDL_Downsample_S32MSB_2c_x2 }, { AUDIO_S32MSB, 2, 1, 2, SDL_Upsample_S32MSB_2c_x2 }, { AUDIO_S32MSB, 2, 0, 4, SDL_Downsample_S32MSB_2c_x4 }, { AUDIO_S32MSB, 2, 1, 4, SDL_Upsample_S32MSB_2c_x4 }, { AUDIO_S32MSB, 4, 0, 2, SDL_Downsample_S32MSB_4c_x2 }, { AUDIO_S32MSB, 4, 1, 2, SDL_Upsample_S32MSB_4c_x2 }, { AUDIO_S32MSB, 4, 0, 4, SDL_Downsample_S32MSB_4c_x4 }, { AUDIO_S32MSB, 4, 1, 4, SDL_Upsample_S32MSB_4c_x4 }, { AUDIO_S32MSB, 6, 0, 2, SDL_Downsample_S32MSB_6c_x2 }, { AUDIO_S32MSB, 6, 1, 2, SDL_Upsample_S32MSB_6c_x2 }, { AUDIO_S32MSB, 6, 0, 4, SDL_Downsample_S32MSB_6c_x4 }, { AUDIO_S32MSB, 6, 1, 4, SDL_Upsample_S32MSB_6c_x4 }, { AUDIO_S32MSB, 8, 0, 2, SDL_Downsample_S32MSB_8c_x2 }, { AUDIO_S32MSB, 8, 1, 2, SDL_Upsample_S32MSB_8c_x2 }, { AUDIO_S32MSB, 8, 0, 4, SDL_Downsample_S32MSB_8c_x4 }, { AUDIO_S32MSB, 8, 1, 4, SDL_Upsample_S32MSB_8c_x4 }, { AUDIO_F32LSB, 1, 0, 2, SDL_Downsample_F32LSB_1c_x2 }, { AUDIO_F32LSB, 1, 1, 2, SDL_Upsample_F32LSB_1c_x2 }, { AUDIO_F32LSB, 1, 0, 4, SDL_Downsample_F32LSB_1c_x4 }, { AUDIO_F32LSB, 1, 1, 4, SDL_Upsample_F32LSB_1c_x4 }, { AUDIO_F32LSB, 2, 0, 2, SDL_Downsample_F32LSB_2c_x2 }, { AUDIO_F32LSB, 2, 1, 2, SDL_Upsample_F32LSB_2c_x2 }, { AUDIO_F32LSB, 2, 0, 4, SDL_Downsample_F32LSB_2c_x4 }, { AUDIO_F32LSB, 2, 1, 4, SDL_Upsample_F32LSB_2c_x4 }, { AUDIO_F32LSB, 4, 0, 2, SDL_Downsample_F32LSB_4c_x2 }, { AUDIO_F32LSB, 4, 1, 2, SDL_Upsample_F32LSB_4c_x2 }, { AUDIO_F32LSB, 4, 0, 4, SDL_Downsample_F32LSB_4c_x4 }, { AUDIO_F32LSB, 4, 1, 4, SDL_Upsample_F32LSB_4c_x4 }, { AUDIO_F32LSB, 6, 0, 2, SDL_Downsample_F32LSB_6c_x2 }, { AUDIO_F32LSB, 6, 1, 2, SDL_Upsample_F32LSB_6c_x2 }, { AUDIO_F32LSB, 6, 0, 4, SDL_Downsample_F32LSB_6c_x4 }, { AUDIO_F32LSB, 6, 1, 4, SDL_Upsample_F32LSB_6c_x4 }, { AUDIO_F32LSB, 8, 0, 2, SDL_Downsample_F32LSB_8c_x2 }, { AUDIO_F32LSB, 8, 1, 2, SDL_Upsample_F32LSB_8c_x2 }, { AUDIO_F32LSB, 8, 0, 4, SDL_Downsample_F32LSB_8c_x4 }, { AUDIO_F32LSB, 8, 1, 4, SDL_Upsample_F32LSB_8c_x4 }, { AUDIO_F32MSB, 1, 0, 2, SDL_Downsample_F32MSB_1c_x2 }, { AUDIO_F32MSB, 1, 1, 2, SDL_Upsample_F32MSB_1c_x2 }, { AUDIO_F32MSB, 1, 0, 4, SDL_Downsample_F32MSB_1c_x4 }, { AUDIO_F32MSB, 1, 1, 4, SDL_Upsample_F32MSB_1c_x4 }, { AUDIO_F32MSB, 2, 0, 2, SDL_Downsample_F32MSB_2c_x2 }, { AUDIO_F32MSB, 2, 1, 2, SDL_Upsample_F32MSB_2c_x2 }, { AUDIO_F32MSB, 2, 0, 4, SDL_Downsample_F32MSB_2c_x4 }, { AUDIO_F32MSB, 2, 1, 4, SDL_Upsample_F32MSB_2c_x4 }, { AUDIO_F32MSB, 4, 0, 2, SDL_Downsample_F32MSB_4c_x2 }, { AUDIO_F32MSB, 4, 1, 2, SDL_Upsample_F32MSB_4c_x2 }, { AUDIO_F32MSB, 4, 0, 4, SDL_Downsample_F32MSB_4c_x4 }, { AUDIO_F32MSB, 4, 1, 4, SDL_Upsample_F32MSB_4c_x4 }, { AUDIO_F32MSB, 6, 0, 2, SDL_Downsample_F32MSB_6c_x2 }, { AUDIO_F32MSB, 6, 1, 2, SDL_Upsample_F32MSB_6c_x2 }, { AUDIO_F32MSB, 6, 0, 4, SDL_Downsample_F32MSB_6c_x4 }, { AUDIO_F32MSB, 6, 1, 4, SDL_Upsample_F32MSB_6c_x4 }, { AUDIO_F32MSB, 8, 0, 2, SDL_Downsample_F32MSB_8c_x2 }, { AUDIO_F32MSB, 8, 1, 2, SDL_Upsample_F32MSB_8c_x2 }, { AUDIO_F32MSB, 8, 0, 4, SDL_Downsample_F32MSB_8c_x4 }, { AUDIO_F32MSB, 8, 1, 4, SDL_Upsample_F32MSB_8c_x4 }, #endif /* !LESS_RESAMPLERS */ #endif /* !NO_RESAMPLERS */ { 0, 0, 0, 0, NULL } }; /* 390 converters generated. */ /* *INDENT-ON* */ /* vi: set ts=4 sw=4 expandtab: */