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SDL_audiocvt.c: Don't byteswap 8-bit streams

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Otherwise, this results an assert on big endian machines when attenpting to use SDL_LoadWAV_RW function to load 8-bit WAV files.
This commit is contained in:
Wohlstand 2022-03-14 05:55:41 +03:00 committed by Sam Lantinga
parent 363c36781d
commit 7c421fec16
1 changed files with 3 additions and 3 deletions
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6
src/audio/SDL_audiocvt.c
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@ -941,7 +941,7 @@ SDL_BuildAudioTypeCVTToFloat(SDL_AudioCVT *cvt, const SDL_AudioFormat src_fmt)
{ {
int retval = 0; /* 0 == no conversion necessary. */ int retval = 0; /* 0 == no conversion necessary. */
if ((SDL_AUDIO_ISBIGENDIAN(src_fmt) != 0) == (SDL_BYTEORDER == SDL_LIL_ENDIAN)) { if ((SDL_AUDIO_ISBIGENDIAN(src_fmt) != 0) == (SDL_BYTEORDER == SDL_LIL_ENDIAN) && SDL_AUDIO_BITSIZE(src_fmt) > 8) {
if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) { if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) {
return -1; return -1;
} }
@ -1018,7 +1018,7 @@ SDL_BuildAudioTypeCVTFromFloat(SDL_AudioCVT *cvt, const SDL_AudioFormat dst_fmt)
retval = 1; /* added a converter. */ retval = 1; /* added a converter. */
} }
if ((SDL_AUDIO_ISBIGENDIAN(dst_fmt) != 0) == (SDL_BYTEORDER == SDL_LIL_ENDIAN)) { if ((SDL_AUDIO_ISBIGENDIAN(dst_fmt) != 0) == (SDL_BYTEORDER == SDL_LIL_ENDIAN) && SDL_AUDIO_BITSIZE(dst_fmt) > 8) {
if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) { if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) {
return -1; return -1;
} }
@ -1270,7 +1270,7 @@ SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
} }
/* just a byteswap needed? */ /* just a byteswap needed? */
if ((src_fmt & ~SDL_AUDIO_MASK_ENDIAN) == (dst_fmt & ~SDL_AUDIO_MASK_ENDIAN)) { if ((src_fmt & ~SDL_AUDIO_MASK_ENDIAN) == (dst_fmt & ~SDL_AUDIO_MASK_ENDIAN) && SDL_AUDIO_BITSIZE(dst_fmt) > 8) {
if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) { if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) {
return -1; return -1;
} }