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MSU-1 pop/skip fixes

This commit is contained in:
qwertymodo 2017-07-05 17:01:07 -07:00
parent 4f457f0c89
commit 32f70fa38e
3 changed files with 20 additions and 23 deletions
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6
apu/apu.cpp
View File

@ -385,6 +385,7 @@ void S9xFinalizeSamples (void)
{
if (Settings.MSU1)
{
S9xMSU1SetOutput((int16 *)msu::landing_buffer, msu::buffer_size);
S9xMSU1Generate(SNES::dsp.spc_dsp.sample_count());
if (!msu::resampler->push((short *)msu::landing_buffer, S9xMSU1Samples()))
{
@ -415,9 +416,6 @@ void S9xFinalizeSamples (void)
spc::sound_in_sync = FALSE;
SNES::dsp.spc_dsp.set_output((SNES::SPC_DSP::sample_t *) spc::landing_buffer, spc::buffer_size);
if (Settings.MSU1)
S9xMSU1SetOutput((int16 *)msu::landing_buffer, msu::buffer_size);
}
void S9xLandSamples (void)
@ -488,7 +486,7 @@ bool8 S9xInitSound (int buffer_ms, int lag_ms)
spc::buffer_size <<= 1;
if (Settings.SixteenBitSound)
spc::buffer_size <<= 1;
msu::buffer_size = ((buffer_ms * 44100 / 1000) * 44100 / 32040) << 2; // Always 16-bit, Stereo
msu::buffer_size = sample_count << 2; // Always 16-bit, Stereo
printf("Sound buffer size: %d (%d samples)\n", spc::buffer_size, sample_count);

27
msu1.cpp
View File

@ -200,7 +200,7 @@
STREAM dataStream = NULL;
STREAM audioStream = NULL;
uint32 audioLoopPos;
uint32 partial_samples;
size_t partial_samples;
// Sample buffer
int16 *bufPos, *bufBegin, *bufEnd;
@ -374,13 +374,13 @@ bool S9xMSU1ROMExists(void)
return exists;
}
void S9xMSU1Generate(int sample_count)
void S9xMSU1Generate(size_t sample_count)
{
partial_samples += 44100 * sample_count;
partial_samples += 4410 * sample_count;
while (((uintptr_t)bufPos < (uintptr_t)bufEnd) && (MSU1.MSU1_STATUS & AudioPlaying) && partial_samples > 32040)
while (((uintptr_t)bufPos < (uintptr_t)bufEnd) && partial_samples > 3204)
{
if (audioStream)
if (MSU1.MSU1_STATUS & AudioPlaying && audioStream)
{
int16 sample;
int bytes_read = READ_STREAM((char *)&sample, 2, audioStream);
@ -390,7 +390,7 @@ void S9xMSU1Generate(int sample_count)
*(bufPos++) = sample;
MSU1.MSU1_AUDIO_POS += 2;
partial_samples -= 32040;
partial_samples -= 3204;
}
else
if (bytes_read >= 0)
@ -399,7 +399,7 @@ void S9xMSU1Generate(int sample_count)
*(bufPos++) = sample;
MSU1.MSU1_AUDIO_POS += 2;
partial_samples -= 32040;
partial_samples -= 3204;
if (MSU1.MSU1_STATUS & AudioRepeating)
{
@ -410,25 +410,24 @@ void S9xMSU1Generate(int sample_count)
{
MSU1.MSU1_STATUS &= ~(AudioPlaying | AudioRepeating);
REVERT_STREAM(audioStream, 8, 0);
return;
}
}
else
{
MSU1.MSU1_STATUS &= ~(AudioPlaying | AudioRepeating);
return;
}
}
else
{
MSU1.MSU1_STATUS &= ~(AudioPlaying | AudioRepeating);
return;
partial_samples -= 3204;
*(bufPos++) = 0;
}
}
}
uint8 S9xMSU1ReadPort(int port)
uint8 S9xMSU1ReadPort(uint8 port)
{
switch (port)
{
@ -466,7 +465,7 @@ uint8 S9xMSU1ReadPort(int port)
}
void S9xMSU1WritePort(int port, uint8 byte)
void S9xMSU1WritePort(uint8 port, uint8 byte)
{
switch (port)
{
@ -537,12 +536,12 @@ void S9xMSU1WritePort(int port, uint8 byte)
}
}
uint16 S9xMSU1Samples(void)
size_t S9xMSU1Samples(void)
{
return bufPos - bufBegin;
}
void S9xMSU1SetOutput(int16 * out, int size)
void S9xMSU1SetOutput(int16 * out, size_t size)
{
bufPos = bufBegin = out;
bufEnd = out + size;

10
msu1.h
View File

@ -231,11 +231,11 @@ void S9xMSU1Init(void);
bool S9xMSU1ROMExists(void);
STREAM S9xMSU1OpenFile(char *msu_ext);
void S9xMSU1Init(void);
void S9xMSU1Generate(int sample_count);
uint8 S9xMSU1ReadPort(int port);
void S9xMSU1WritePort(int port, uint8 byte);
uint16 S9xMSU1Samples(void);
void S9xMSU1SetOutput(int16 *out, int size);
void S9xMSU1Generate(size_t sample_count);
uint8 S9xMSU1ReadPort(uint8 port);
void S9xMSU1WritePort(uint8 port, uint8 byte);
size_t S9xMSU1Samples(void);
void S9xMSU1SetOutput(int16 *out, size_t size);
void S9xMSU1PostLoadState(void);
#endif