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melonDS
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my bad.

This commit is contained in:
Arisotura 2019-08-18 11:31:03 +02:00
parent 78ff4165ed
commit 626a9c1385
2 changed files with 16 additions and 7 deletions
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22
src/SPU.cpp
View File

@ -26,7 +26,7 @@
// * capture addition modes, overflow bugs // * capture addition modes, overflow bugs
// * channel hold // * channel hold
// * 'length less than 4' glitch // * 'length less than 4' glitch
int brap = 0;
namespace SPU namespace SPU
{ {
@ -63,7 +63,7 @@ const s16 PSGTable[8][8] =
const u32 kSamplesPerRun = 1; const u32 kSamplesPerRun = 1;
const u32 OutputBufferSize = 2*1024; const u32 OutputBufferSize = 2*2*1024;
s16 OutputBuffer[2 * OutputBufferSize]; s16 OutputBuffer[2 * OutputBufferSize];
u32 OutputReadOffset; u32 OutputReadOffset;
u32 OutputWriteOffset; u32 OutputWriteOffset;
@ -101,7 +101,7 @@ void Reset()
{ {
memset(OutputBuffer, 0, 2*OutputBufferSize*2); memset(OutputBuffer, 0, 2*OutputBufferSize*2);
OutputReadOffset = 0; OutputReadOffset = 0;
OutputWriteOffset = OutputBufferSize; OutputWriteOffset = 0;//OutputBufferSize;
Cnt = 0; Cnt = 0;
MasterVolume = 0; MasterVolume = 0;
@ -579,7 +579,7 @@ void CaptureUnit::Run(s32 sample)
} }
} }
int zog = 0, zig = 0;
void Mix(u32 samples) void Mix(u32 samples)
{ {
s32 channelbuf[32]; s32 channelbuf[32];
@ -734,15 +734,23 @@ void Mix(u32 samples)
OutputBuffer[OutputWriteOffset + 1] = r >> 1; OutputBuffer[OutputWriteOffset + 1] = r >> 1;
OutputWriteOffset += 2; OutputWriteOffset += 2;
OutputWriteOffset &= ((2*OutputBufferSize)-1); OutputWriteOffset &= ((2*OutputBufferSize)-1);
if (OutputWriteOffset == OutputReadOffset) printf("!! SOUND FIFO OVERFLOW\n"); if (OutputWriteOffset == OutputReadOffset) printf("!! SOUND FIFO OVERFLOW %d\n", OutputWriteOffset>>1);
zog++; zig++; brap++;
} }
NDS::ScheduleEvent(NDS::Event_SPU, true, 1024*kSamplesPerRun, Mix, kSamplesPerRun); NDS::ScheduleEvent(NDS::Event_SPU, true, 1024*kSamplesPerRun, Mix, kSamplesPerRun);
} }
int GetOutputSize()
{
return zog; // derp
}
int ReadOutput(s16* data, int samples) int ReadOutput(s16* data, int samples)
{ {
printf("ReadOutput(%d): wrote=%d level=%d ReadOffset=%d WriteOffset=%d\n", samples, zog, zig, OutputReadOffset>>1, OutputWriteOffset>>1);
zog = 0; zig -= (zig<samples ? zig : samples);
if (OutputReadOffset == OutputWriteOffset) if (OutputReadOffset == OutputWriteOffset)
return 0; return 0;
@ -908,8 +916,8 @@ void Write16(u32 addr, u16 val)
return; return;
case 0xA: chan->SetLoopPos(val); return; case 0xA: chan->SetLoopPos(val); return;
case 0xC: chan->SetLength((chan->Length & 0xFFFF0000) | val); return; case 0xC: chan->SetLength(((chan->Length >> 2) & 0xFFFF0000) | val); return;
case 0xE: chan->SetLength((chan->Length & 0x0000FFFF) | (val << 16)); return; case 0xE: chan->SetLength(((chan->Length >> 2) & 0x0000FFFF) | (val << 16)); return;
} }
} }
else else

1
src/SPU.h
View File

@ -35,6 +35,7 @@ void SetBias(u16 bias);
void Mix(u32 samples); void Mix(u32 samples);
int GetOutputSize();
int ReadOutput(s16* data, int samples); int ReadOutput(s16* data, int samples);
u8 Read8(u32 addr); u8 Read8(u32 addr);