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Back ported SDL sound bug fixes from QT to GTK GUI.

This commit is contained in:
Matthew Budd 2020-08-09 05:17:48 -04:00
parent 33c5b328b2
commit 989d39c26e
1 changed files with 20 additions and 5 deletions
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25
src/drivers/sdl/sdl-sound.cpp
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@ -49,16 +49,21 @@ fillaudio(void *udata,
uint8 *stream,
int len)
{
static int16_t sample = 0;
int16 *tmps = (int16*)stream;
len >>= 1;
while(len) {
int16 sample = 0;
if(s_BufferIn) {
while (len)
{
if (s_BufferIn)
{
sample = s_Buffer[s_BufferRead];
s_BufferRead = (s_BufferRead + 1) % s_BufferSize;
s_BufferIn--;
} else {
sample = 0;
// Retain last known sample value, helps avoid clicking
// noise when sound system is starved of audio data.
//sample = 0;
//bufStarveDetected = 1;
}
*tmps = sample;
@ -179,11 +184,20 @@ WriteSound(int32 *buf,
{
extern int EmulationPaused;
if (EmulationPaused == 0)
{
int waitCount = 0;
while(Count)
{
while(s_BufferIn == s_BufferSize)
{
SDL_Delay(1);
SDL_Delay(1); waitCount++;
if ( waitCount > 1000 )
{
printf("Error: Sound sink is not draining... Breaking out of audio loop to prevent lockup.\n");
return;
}
}
s_Buffer[s_BufferWrite] = *buf;
@ -196,6 +210,7 @@ WriteSound(int32 *buf,
buf++;
}
}
}
/**