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Handle non-native endian formats with SDL_sound

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This commit is contained in:
Chris Robinson
2013-06-19 22:47:17 -07:00
parent a9fac12969
commit 160e901381
1 changed files with 17 additions and 2 deletions
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examples/common/sdl_sound.c
+17 -2
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@@ -105,9 +105,9 @@ int getAudioInfo(FilePtr file, ALuint *rate, ALenum *channels, ALenum *type)
*type = AL_UNSIGNED_BYTE_SOFT;
else if(file->actual.format == AUDIO_S8)
*type = AL_BYTE_SOFT;
else if(file->actual.format == AUDIO_U16SYS)
else if(file->actual.format == AUDIO_U16LSB || file->actual.format == AUDIO_U16MSB)
*type = AL_UNSIGNED_SHORT_SOFT;
else if(file->actual.format == AUDIO_S16SYS)
else if(file->actual.format == AUDIO_S16LSB || file->actual.format == AUDIO_S16MSB)
*type = AL_SHORT_SOFT;
else
{
@@ -126,6 +126,21 @@ uint8_t *getAudioData(FilePtr file, size_t *length)
*length = Sound_Decode(file);
if(*length == 0)
return NULL;
if((file->actual.format == AUDIO_U16LSB && AUDIO_U16LSB != AUDIO_U16SYS) ||
(file->actual.format == AUDIO_U16MSB && AUDIO_U16MSB != AUDIO_U16SYS) ||
(file->actual.format == AUDIO_S16LSB && AUDIO_S16LSB != AUDIO_S16SYS) ||
(file->actual.format == AUDIO_S16MSB && AUDIO_S16MSB != AUDIO_S16SYS))
{
/* Swap bytes if the decoded endianness doesn't match the system. */
char *buffer = file->buffer;
size_t i;
for(i = 0;i < *length;i+=2)
{
char b = buffer[i];
buffer[i] = buffer[i+1];
buffer[i+1] = b;
}
}
return file->buffer;
}