play static, with volume controlled by the music volume slider

This commit is contained in:
Eric Wasylishen 2011-01-01 23:58:26 -07:00
parent 195baa74bc
commit 9998e06750
4 changed files with 116 additions and 25 deletions

1
Quake/cd_ogg.c Normal file
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@ -0,0 +1 @@

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@ -167,7 +167,7 @@ void S_PaintChannels (int endtime)
// clear the paint buffer // clear the paint buffer
memset(paintbuffer, 0, (end - paintedtime) * sizeof(portable_samplepair_t)); memset(paintbuffer, 0, (end - paintedtime) * sizeof(portable_samplepair_t));
// paint in the channels. // paint in the sfx channels.
ch = snd_channels; ch = snd_channels;
for (i = 0; i < total_channels; i++, ch++) for (i = 0; i < total_channels; i++, ch++)
{ {
@ -215,6 +215,30 @@ void S_PaintChannels (int endtime)
} }
} }
// paint the OGG music
{
ltime = paintedtime;
int volume = 255 * bgmvolume.value;
count = end - ltime;
int i;
int *lscale, *rscale;
lscale = snd_scaletable[volume >> 3];
rscale = snd_scaletable[volume >> 3];
for (i = 0; i < count; i++)
{
unsigned char data = rand() % 256;
paintbuffer[i].left += lscale[data];
paintbuffer[i].right += rscale[data];
}
}
// transfer out according to DMA format // transfer out according to DMA format
S_TransferPaintBuffer(end); S_TransferPaintBuffer(end);
paintedtime = end; paintedtime = end;

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@ -50,9 +50,15 @@
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@ -1,11 +1,38 @@
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