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Support SDL audio devices that require float32 samples.

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Fixes missing audio when playing on Windows with SDL 2.0.7, which started
using WASAPI, which demands floating point audio.
This commit is contained in:
Ryan C. Gordon 2018-04-13 14:05:12 -04:00
parent 3377f9981a
commit 4f8c7c2f2f
5 changed files with 26 additions and 4 deletions
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7
code/sdl/sdl_snd.c
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@ -96,7 +96,9 @@ static struct
{ AUDIO_U16LSB, "AUDIO_U16LSB" },
{ AUDIO_S16LSB, "AUDIO_S16LSB" },
{ AUDIO_U16MSB, "AUDIO_U16MSB" },
{ AUDIO_S16MSB, "AUDIO_S16MSB" }
{ AUDIO_S16MSB, "AUDIO_S16MSB" },
{ AUDIO_F32LSB, "AUDIO_F32LSB" },
{ AUDIO_F32MSB, "AUDIO_F32MSB" }
};
static int formatToStringTableSize = ARRAY_LEN( formatToStringTable );
@ -228,7 +230,8 @@ qboolean SNDDMA_Init(void)
}
dmapos = 0;
dma.samplebits = obtained.format & 0xFF; // first byte of format is bits.
dma.samplebits = SDL_AUDIO_BITSIZE(obtained.format);
dma.isfloat = SDL_AUDIO_ISFLOAT(obtained.format);
dma.channels = obtained.channels;
dma.samples = tmp;
dma.submission_chunk = 1;