sdl-ios-xcode: src/audio/mint/SDL_mintaudio

annotate src/audio/mint/SDL_mintaudio_gsxb.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device

Removed distinction between "available" and "init" in audio backends, since both had to be checked for success as a pair at the higher level and several of the Available methods were just always-succeed placeholders anyhow. Now the availability check is done in the init code, and the higher level tries all possible drivers until one manages to initialize successfully.

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 17 Oct 2006 09:09:21 +0000
parents	1f156fd874fa
children

rev	line source
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	1 /*
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
769 b8d311d90021 Updated copyright information for 2004 (Happy New Year!) Sam Lantinga <slouken@libsdl.org> parents: 704 diff changeset	3 Copyright (C) 1997-2004 Sam Lantinga
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	4
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	9
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	13 Library General Public License for more details.
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	14
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	16 License along with this library; if not, write to the Free
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	18
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	19 Sam Lantinga
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	20 slouken@libsdl.org
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	23
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	24 /*
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	25 MiNT audio driver
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	26 using XBIOS functions (GSXB compatible driver)
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	27
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	28 Patrice Mandin
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	29 */
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	30
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	31 /* Mint includes */
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	32 #include <mint/osbind.h>
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	33 #include <mint/falcon.h>
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	34 #include <mint/cookie.h>
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	35
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	36 #include "SDL_audio.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	37 #include "../SDL_audio_c.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	38 #include "../SDL_sysaudio.h"
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	39
1412 a8181c4040b8 Fixed include files Patrice Mandin <patmandin@gmail.com> parents: 1402 diff changeset	40 #include "../../video/ataricommon/SDL_atarimxalloc_c.h"
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	41
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	42 #include "SDL_mintaudio.h"
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	43 #include "SDL_mintaudio_gsxb.h"
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	44
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	45 /--- Defines ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	46
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	47 #define MINT_AUDIO_DRIVER_NAME "mint_gsxb"
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	48
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	49 /* Debug print info */
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	50 #define DEBUG_NAME "audio:gsxb: "
962 176240cf4405 Forgot to disable debug messages Patrice Mandin <patmandin@gmail.com> parents: 961 diff changeset	51 #if 0
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	52 #define DEBUG_PRINT(what) \
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	53 { \
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	54 printf what; \
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	55 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	56 #else
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	57 #define DEBUG_PRINT(what)
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	58 #endif
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	59
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	60 /--- Static variables ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	61
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	62 static unsigned long cookie_snd, cookie_gsxb;
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	63
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	64 /--- Audio driver functions ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	65
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	66 /* GSXB callbacks */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	67 static void MINTGSXB_GsxbInterrupt(void);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	68 static void MINTGSXB_GsxbNullInterrupt(void);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	69
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	70 static void
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	71 MINTGSXB_LockDevice(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	72 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	73 /* Stop replay */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	74 Buffoper(0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	75 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	76
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	77 static void
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	78 MINTGSXB_UnlockDevice(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	79 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	80 /* Restart replay */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	81 Buffoper(SB_PLA_ENA \| SB_PLA_RPT);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	82 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	83
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	84 static void
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	85 MINTGSXB_CloseDevice(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	86 {
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	87 if (this->hidden != NULL) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	88 /* Stop replay */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	89 Buffoper(0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	90
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	91 /* Uninstall interrupt */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	92 if (NSetinterrupt(2, SI_NONE, MINTGSXB_GsxbNullInterrupt) < 0) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	93 DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed in close\n"));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	94 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	95
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	96 /* Wait if currently playing sound */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	97 while (SDL_MintAudio_mutex != 0) {}
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	98
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	99 /* Clear buffers */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	100 if (SDL_MintAudio_audiobuf[0]) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	101 Mfree(SDL_MintAudio_audiobuf[0]);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	102 SDL_MintAudio_audiobuf[0] = SDL_MintAudio_audiobuf[1] = NULL;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	103 }
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	104
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	105 /* Unlock sound system */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	106 Unlocksnd();
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	107
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	108 SDL_free(this->hidden);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	109 this->hidden = NULL;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	110 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	111 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	112
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	113 static int
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	114 MINTGSXB_CheckAudio(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	115 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	116 long snd_format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	117 int i, resolution, format_signed, format_bigendian;
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	118 SDL_AudioFormat test_format = SDL_FirstAudioFormat(this->spec.format);
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	119 int valid_datatype = 0;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	120
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	121 resolution = SDL_AUDIO_BITSIZE(this->spec.format);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	122 format_signed = SDL_AUDIO_ISSIGNED(this->spec.format);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	123 format_bigendian = SDL_AUDIO_ISBIGENDIAN(this->spec.format);
704 c4803992e09c Small bugfixes Patrice Mandin <patmandin@gmail.com> parents: 644 diff changeset	124
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	125 DEBUG_PRINT((DEBUG_NAME "asked: %d bits, ", resolution));
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	126 DEBUG_PRINT(("float=%d, ", SDL_AUDIO_ISFLOAT(this->spec.format)));
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	127 DEBUG_PRINT(("signed=%d, ", format_signed));
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	128 DEBUG_PRINT(("big endian=%d, ", format_bigendian));
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	129 DEBUG_PRINT(("channels=%d, ", this->spec.channels));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	130 DEBUG_PRINT(("freq=%d\n", this->spec.freq));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	131
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	132 if (this->spec.channels > 2) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	133 this->spec.channels = 2; /* no more than stereo! */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	134 }
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	135
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	136 while ((!valid_datatype) && (test_format)) {
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	137 /* Check formats available */
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	138 snd_format = Sndstatus(SND_QUERYFORMATS);
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	139 this->spec.format = test_format;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	140 resolution = SDL_AUDIO_BITSIZE(this->spec.format);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	141 format_signed = SDL_AUDIO_ISSIGNED(this->spec.format);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	142 format_bigendian = SDL_AUDIO_ISBIGENDIAN(this->spec.format);
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	143 switch (test_format) {
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	144 case AUDIO_U8:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	145 case AUDIO_S8:
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	146 if (snd_format & SND_FORMAT8) {
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	147 valid_datatype = 1;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	148 snd_format = Sndstatus(SND_QUERY8BIT);
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	149 }
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	150 break;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	151
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	152 case AUDIO_U16LSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	153 case AUDIO_S16LSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	154 case AUDIO_U16MSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	155 case AUDIO_S16MSB:
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	156 if (snd_format & SND_FORMAT16) {
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	157 valid_datatype = 1;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	158 snd_format = Sndstatus(SND_QUERY16BIT);
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	159 }
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	160 break;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	161
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	162 case AUDIO_S32LSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	163 case AUDIO_S32MSB:
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	164 if (snd_format & SND_FORMAT32) {
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	165 valid_datatype = 1;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	166 snd_format = Sndstatus(SND_QUERY32BIT);
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	167 }
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	168 break;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	169
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	170 /* no float support... */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	171
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	172 default:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	173 test_format = SDL_NextAudioFormat();
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	174 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	175 }
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	176 }
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	177
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	178 if (!valid_datatype) {
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	179 SDL_SetError("Unsupported audio format");
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	180 return (-1);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	181 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	182
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	183 /* Check signed/unsigned format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	184 if (format_signed) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	185 if (snd_format & SND_FORMATSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	186 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	187 } else if (snd_format & SND_FORMATUNSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	188 /* Give unsigned format */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	189 this->spec.format = this->spec.format & (~SDL_AUDIO_MASK_SIGNED);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	190 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	191 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	192 if (snd_format & SND_FORMATUNSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	193 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	194 } else if (snd_format & SND_FORMATSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	195 /* Give signed format */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	196 this->spec.format \|= SDL_AUDIO_MASK_SIGNED;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	197 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	198 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	199
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	200 if (format_bigendian) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	201 if (snd_format & SND_FORMATBIGENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	202 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	203 } else if (snd_format & SND_FORMATLITTLEENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	204 /* Give little endian format */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	205 this->spec.format = this->spec.format & (~SDL_AUDIO_MASK_ENDIAN);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	206 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	207 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	208 if (snd_format & SND_FORMATLITTLEENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	209 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	210 } else if (snd_format & SND_FORMATBIGENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	211 /* Give big endian format */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	212 this->spec.format \|= SDL_AUDIO_MASK_ENDIAN;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	213 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	214 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	215
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	216 /* Calculate and select the closest frequency */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	217 MINTAUDIO_freqcount = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	218 for (i = 1; i < 4; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	219 SDL_MintAudio_AddFrequency(this,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	220 MASTERCLOCK_44K / (MASTERPREDIV_MILAN *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	221 (1 << i)),
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	222 MASTERCLOCK_44K, (1 << i) - 1, -1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	223 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	224
961 185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200 Patrice Mandin <patmandin@gmail.com> parents: 769 diff changeset	225 #if 1
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	226 for (i = 0; i < MINTAUDIO_freqcount; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	227 DEBUG_PRINT((DEBUG_NAME "freq %d: %lu Hz, clock %lu, prediv %d\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	228 i, MINTAUDIO_frequencies[i].frequency,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	229 MINTAUDIO_frequencies[i].masterclock,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	230 MINTAUDIO_frequencies[i].predivisor));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	231 }
961 185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200 Patrice Mandin <patmandin@gmail.com> parents: 769 diff changeset	232 #endif
185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200 Patrice Mandin <patmandin@gmail.com> parents: 769 diff changeset	233
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	234 MINTAUDIO_numfreq = SDL_MintAudio_SearchFrequency(this, this->spec.freq);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	235 this->spec.freq = MINTAUDIO_frequencies[MINTAUDIO_numfreq].frequency;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	236
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	237 DEBUG_PRINT((DEBUG_NAME "obtained: %d bits, ",
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	238 SDL_AUDIO_BITSIZE(this->spec.format)));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	239 DEBUG_PRINT(("float=%d, ", SDL_AUDIO_ISFLOAT(this->spec.format)));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	240 DEBUG_PRINT(("signed=%d, ", SDL_AUDIO_ISSIGNED(this->spec.format)));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	241 DEBUG_PRINT(("big endian=%d, ", SDL_AUDIO_ISBIGENDIAN(this->spec.format)));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	242 DEBUG_PRINT(("channels=%d, ", this->spec.channels));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	243 DEBUG_PRINT(("freq=%d\n", this->spec.freq));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	244
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	245 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	246 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	247
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	248 static void
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	249 MINTGSXB_InitAudio(_THIS)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	250 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	251 int channels_mode, prediv;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	252 void *buffer;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	253
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	254 /* Stop currently playing sound */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	255 Buffoper(0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	256
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	257 /* Set replay tracks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	258 Settracks(0, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	259 Setmontracks(0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	260
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	261 /* Select replay format */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	262 switch (SDL_AUDIO_BITSIZE(this->spec.format)) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	263 case 8:
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	264 if (this->spec.channels == 2) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	265 channels_mode = STEREO8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	266 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	267 channels_mode = MONO8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	268 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	269 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	270 case 16:
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	271 if (this->spec.channels == 2) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	272 channels_mode = STEREO16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	273 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	274 channels_mode = MONO16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	275 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	276 break;
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	277 case 32:
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	278 if (this->spec.channels == 2) {
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	279 channels_mode = STEREO32;
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	280 } else {
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	281 channels_mode = MONO32;
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	282 }
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	283 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	284 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	285 channels_mode = STEREO16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	286 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	287 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	288 if (Setmode(channels_mode) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	289 DEBUG_PRINT((DEBUG_NAME "Setmode() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	290 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	291
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	292 prediv = MINTAUDIO_frequencies[MINTAUDIO_numfreq].predivisor;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	293 Devconnect(DMAPLAY, DAC, CLKEXT, prediv, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	294
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	295 /* Set buffer */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	296 buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	297 if (Setbuffer(0, buffer, buffer + this->spec.size) < 0) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	298 DEBUG_PRINT((DEBUG_NAME "Setbuffer() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	299 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	300
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	301 /* Install interrupt */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	302 if (NSetinterrupt(2, SI_PLAY, MINTGSXB_GsxbInterrupt) < 0) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	303 DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	304 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	305
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	306 /* Go */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	307 Buffoper(SB_PLA_ENA \| SB_PLA_RPT);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	308 DEBUG_PRINT((DEBUG_NAME "hardware initialized\n"));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	309 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	310
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	311 static int
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	312 MINTGSXB_OpenDevice(_THIS, const char *devname, int iscapture)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	313 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	314 /* Lock sound system */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	315 if (Locksnd() != 1) {
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	316 SDL_SetError("MINTGSXB_OpenDevice: Audio system already in use");
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	317 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	318 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	319
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	320 SDL_MintAudio_device = this;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	321
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	322 /* Check audio capabilities */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	323 if (MINTGSXB_CheckAudio(this) == -1) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	324 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	325 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	326
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	327 /* Initialize all variables that we clean on shutdown */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	328 this->hidden = (struct SDL_PrivateAudioData *)
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	329 SDL_malloc((sizeof *this->hidden));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	330 if (this->hidden == NULL) {
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	331 SDL_OutOfMemory();
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	332 return 0;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	333 }
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	334 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	335
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	336 SDL_CalculateAudioSpec(&this->spec);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	337
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	338 /* Allocate memory for audio buffers in DMA-able RAM */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	339 DEBUG_PRINT((DEBUG_NAME "buffer size=%d\n", this->spec.size));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	340
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	341 SDL_MintAudio_audiobuf[0] = Atari_SysMalloc(this->spec.size * 2, MX_STRAM);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	342 if (SDL_MintAudio_audiobuf[0] == NULL) {
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	343 SDL_free(this->hidden);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	344 this->hidden = NULL;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	345 SDL_OutOfMemory();
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	346 return 0;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	347 }
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	348 SDL_MintAudio_audiobuf[1] = SDL_MintAudio_audiobuf[0] + this->spec.size;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	349 SDL_MintAudio_numbuf = 0;
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	350 SDL_memset(SDL_MintAudio_audiobuf[0],this->spec.silence,this->spec.size*2);
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	351 SDL_MintAudio_audiosize = this->spec.size;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	352 SDL_MintAudio_mutex = 0;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	353
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	354 DEBUG_PRINT((DEBUG_NAME "buffer 0 at 0x%08x\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	355 SDL_MintAudio_audiobuf[0]));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	356 DEBUG_PRINT((DEBUG_NAME "buffer 1 at 0x%08x\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	357 SDL_MintAudio_audiobuf[1]));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	358
2027 d48ead2d2ba5 Save/restore FPU registers in interrupt Patrice Mandin <patmandin@gmail.com> parents: 2005 diff changeset	359 SDL_MintAudio_CheckFpu();
d48ead2d2ba5 Save/restore FPU registers in interrupt Patrice Mandin <patmandin@gmail.com> parents: 2005 diff changeset	360
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	361 /* Setup audio hardware */
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	362 MINTGSXB_InitAudio(this);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	363
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	364 return 1; /* good to go. */
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	365 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	366
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	367 static void
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	368 MINTGSXB_GsxbInterrupt(void)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	369 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	370 Uint8 *newbuf;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	371
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	372 if (SDL_MintAudio_mutex)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	373 return;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	374
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	375 SDL_MintAudio_mutex = 1;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	376
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	377 SDL_MintAudio_numbuf ^= 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	378 SDL_MintAudio_Callback();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	379 newbuf = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	380 Setbuffer(0, newbuf, newbuf + SDL_MintAudio_audiosize);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	381
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	382 SDL_MintAudio_mutex = 0;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	383 }
1097 c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	384
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	385 static void
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	386 MINTGSXB_GsxbNullInterrupt(void)
1097 c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	387 {
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	388 }
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	389
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	390 static int
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	391 MINTGSXB_Init(SDL_AudioDriverImpl *impl)
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	392 {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	393 /* Cookie _SND present ? if not, assume ST machine */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	394 if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	395 cookie_snd = SND_PSG;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	396 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	397
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	398 /* Check if we have 16 bits audio */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	399 if ((cookie_snd & SND_16BIT) == 0) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	400 SDL_SetError(DEBUG_NAME "no 16-bit sound");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	401 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	402 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	403
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	404 /* Cookie GSXB present ? */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	405 cookie_gsxb = (Getcookie(C_GSXB, &cookie_gsxb) == C_FOUND);
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	406
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	407 /* Is it GSXB ? */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	408 if (((cookie_snd & SND_GSXB) == 0) \|\| (cookie_gsxb == 0)) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	409 SDL_SetError(DEBUG_NAME "no GSXB audio");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	410 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	411 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	412
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	413 /* Check if audio is lockable */
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	414 if (Locksnd() != 1) {
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	415 SDL_SetError(DEBUG_NAME "audio locked by other application");
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	416 return 0;
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	417 }
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	418
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	419 Unlocksnd();
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	420
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	421 DEBUG_PRINT((DEBUG_NAME "GSXB audio available!\n"));
66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	422
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	423 /* Set the function pointers */
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	424 impl->OpenDevice = MINTGSXB_OpenDevice;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	425 impl->CloseDevice = MINTGSXB_CloseDevice;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	426 impl->LockAudio = MINTGSXB_LockAudio;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	427 impl->UnlockAudio = MINTGSXB_UnlockAudio;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	428 impl->OnlyHasDefaultOutputDevice = 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	429 impl->ProvidesOwnCallbackThread = 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	430 impl->SkipMixerLock = 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	431
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	432 return 1;
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	433 }
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	434
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	435 AudioBootStrap MINTAUDIO_GSXB_bootstrap = {
3846 66fb40445587 Removed distinction between "available" and "init" in audio backends, since Ryan C. Gordon <icculus@icculus.org> parents: 3820 diff changeset	436 MINT_AUDIO_DRIVER_NAME, "MiNT GSXB audio driver", MINTGSXB_Init, 0
3820 1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	437 };
1f156fd874fa Moved more audio drivers to 1.3 API (all 5 MiNT backends, BSD, IRIX...), and Ryan C. Gordon <icculus@icculus.org> parents: 3798 diff changeset	438
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	439 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/mint/SDL_mintaudio_gsxb.c @ 3846:66fb40445587 SDL-ryan-multiple-audio-device