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comparison src/audio/SDL_audiocvt.c @ 2078:f932ac47a331

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Apparently it's possible that MSVC will want to call a built-in function to bitshift an Sint64, but it can't find this function since we don't use the C runtime on Windows. Division doesn't have this problem, though. Strange. Thanks, Suzuki Masahiro.
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 29 Nov 2006 10:38:07 +0000
parents 5f6550e5184f
children 3ee59c43d784
comparison
equal deleted inserted replaced
2077:8bfba7ec379a 2078:f932ac47a331
138 if (SDL_AUDIO_ISBIGENDIAN(format)) { 138 if (SDL_AUDIO_ISBIGENDIAN(format)) {
139 for (i = cvt->len_cvt / 8; i; --i, src += 2) { 139 for (i = cvt->len_cvt / 8; i; --i, src += 2) {
140 const Sint64 added = 140 const Sint64 added =
141 (((Sint64) (Sint32) SDL_SwapBE32(src[0])) + 141 (((Sint64) (Sint32) SDL_SwapBE32(src[0])) +
142 ((Sint64) (Sint32) SDL_SwapBE32(src[1]))); 142 ((Sint64) (Sint32) SDL_SwapBE32(src[1])));
143 *(dst++) = SDL_SwapBE32((Uint32) ((Sint32) (added >> 1))); 143 *(dst++) = SDL_SwapBE32((Uint32) ((Sint32) (added / 2)));
144 } 144 }
145 } else { 145 } else {
146 for (i = cvt->len_cvt / 8; i; --i, src += 2) { 146 for (i = cvt->len_cvt / 8; i; --i, src += 2) {
147 const Sint64 added = 147 const Sint64 added =
148 (((Sint64) (Sint32) SDL_SwapLE32(src[0])) + 148 (((Sint64) (Sint32) SDL_SwapLE32(src[0])) +
149 ((Sint64) (Sint32) SDL_SwapLE32(src[1]))); 149 ((Sint64) (Sint32) SDL_SwapLE32(src[1])));
150 *(dst++) = SDL_SwapLE32((Uint32) ((Sint32) (added >> 1))); 150 *(dst++) = SDL_SwapLE32((Uint32) ((Sint32) (added / 2)));
151 } 151 }
152 } 152 }
153 } 153 }
154 break; 154 break;
155 155