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* PCM8, PCM16, ADPCM, white noise

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* volume, volume div, panning, master volume
This commit is contained in:
StapleButter
2017-04-07 01:06:10 +02:00
parent 76c4e57608
commit d8bbf25431
2 changed files with 259 additions and 42 deletions
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40
src/SPU.h
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@ -52,31 +52,55 @@ public:
u32 LoopPos;
u32 Length;
u8 Volume;
u8 VolumeShift;
u8 Pan;
u32 Timer;
u32 Pos;
s32 Pos;
s16 CurSample;
u16 NoiseVal;
s32 ADPCMVal;
s32 ADPCMIndex;
s32 ADPCMValLoop;
s32 ADPCMIndexLoop;
u8 ADPCMCurByte;
void SetCnt(u32 val)
{
if ((val & (1<<31)) && !(Cnt & (1<<31)))
u32 oldcnt = Cnt;
Cnt = val & 0xFF7F837F;
Volume = Cnt & 0x7F;
if (Volume == 127) Volume++;
const u8 volshift[4] = {4, 3, 2, 0};
VolumeShift = volshift[(Cnt >> 8) & 0x3];
Pan = (Cnt >> 16) & 0x7F;
if (Pan == 127) Pan++;
if ((val & (1<<31)) && !(oldcnt & (1<<31)))
{
Start();
}
Cnt = val & 0xFF7F837F;
//if(Num==8)printf("chan %d volume: %d\n", Num, val&0x7F);
}
void SetSrcAddr(u32 val) { SrcAddr = val & 0x07FFFFFF; }
void SetTimerReload(u32 val) { TimerReload = val & 0xFFFF;if(Num==8) printf("chan8 timer %04X\n", TimerReload);}
void SetSrcAddr(u32 val) { SrcAddr = val & 0x07FFFFFC; }
void SetTimerReload(u32 val) { TimerReload = val & 0xFFFF; }
void SetLoopPos(u32 val) { LoopPos = (val & 0xFFFF) << 2; }
void SetLength(u32 val) { Length = (val & 0x001FFFFF) << 2; }
void Start();
void NextSample_PCM8();
void NextSample_PCM16();
void NextSample_ADPCM();
void NextSample_PSG();
void NextSample_Noise();
void Run(s32* buf, u32 samples);
template<u32 type> void Run(s32* buf, u32 samples);
};
}