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CSND: IMA-ADPCM playback support, really fix looping

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fincs 2015-01-03 19:27:27 +01:00
parent 671ea5f555
commit cbc1c645a6
2 changed files with 50 additions and 5 deletions
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16
libctru/include/3ds/services/csnd.h
View File

@ -14,15 +14,23 @@ typedef enum
CSND_ENCODING_PSG, // Similar to DS?
};
enum
{
CSND_LOOPMODE_MANUAL = 0,
CSND_LOOPMODE_NORMAL,
CSND_LOOPMODE_ONESHOT,
CSND_LOOPMODE_NORELOAD,
};
#define SOUND_CHANNEL(n) ((u32)(n) & 0x1F)
#define SOUND_FORMAT(n) ((u32)(n) << 12)
#define SOUND_LOOPMODE(n) ((u32)(n) << 10)
enum
{
SOUND_LINEAR_INTERP = BIT(6),
SOUND_REPEAT = BIT(10),
SOUND_CONST_BLOCK_SIZE = BIT(11),
SOUND_ONE_SHOT = 0,
SOUND_REPEAT = SOUND_LOOPMODE(CSND_LOOPMODE_NORMAL),
SOUND_ONE_SHOT = SOUND_LOOPMODE(CSND_LOOPMODE_ONESHOT),
SOUND_FORMAT_8BIT = SOUND_FORMAT(CSND_ENCODING_PCM8),
SOUND_FORMAT_16BIT = SOUND_FORMAT(CSND_ENCODING_PCM16),
SOUND_FORMAT_ADPCM = SOUND_FORMAT(CSND_ENCODING_ADPCM),
@ -76,6 +84,8 @@ void CSND_ChnSetBlock(u32 channel, int block, u32 physaddr, u32 size);
void CSND_ChnSetVol(u32 channel, u16 left, u16 right);
void CSND_ChnSetTimer(u32 channel, u32 timer);
void CSND_ChnSetDuty(u32 channel, u32 duty);
void CSND_ChnSetAdpcmState(u32 channel, int block, int sample, int index);
void CSND_ChnSetAdpcmReload(u32 channel, bool reload);
void CSND_ChnConfig(u32 flags, u32 physaddr0, u32 physaddr1, u32 totalbytesize);
Result CSND_UpdateChnInfo(bool waitDone);

39
libctru/source/services/csnd.c
View File

@ -272,6 +272,31 @@ void CSND_ChnSetDuty(u32 channel, u32 duty)
csndWriteChnCmd(0x7, (u8*)&cmdparams);
}
void CSND_ChnSetAdpcmState(u32 channel, int block, int sample, int index)
{
u32 cmdparams[0x18>>2];
memset(cmdparams, 0, 0x18);
cmdparams[0] = channel & 0x1f;
cmdparams[1] = sample & 0xFFFF;
cmdparams[2] = index & 0x7F;
csndWriteChnCmd(block ? 0xC : 0xB, (u8*)&cmdparams);
}
void CSND_ChnSetAdpcmReload(u32 channel, bool reload)
{
u32 cmdparams[0x18>>2];
memset(cmdparams, 0, 0x18);
cmdparams[0] = channel & 0x1f;
cmdparams[1] = reload ? 1 : 0;
csndWriteChnCmd(0xD, (u8*)&cmdparams);
}
void CSND_ChnConfig(u32 flags, u32 physaddr0, u32 physaddr1, u32 totalbytesize)
{
u32 cmdparams[0x18>>2];
@ -305,10 +330,20 @@ Result csndChnPlaySound(int chn, u32 flags, u32 sampleRate, void* data0, void* d
u32 paddr0 = 0, paddr1 = 0;
if (((flags >> 12) & 3) != CSND_ENCODING_PSG)
int encoding = (flags >> 12) & 3;
int loopMode = (flags >> 10) & 3;
if (encoding != CSND_ENCODING_PSG)
{
if (data0) paddr0 = osConvertVirtToPhys((u32)data0);
if (data1) paddr1 = osConvertVirtToPhys((u32)data1);
if (encoding == CSND_ENCODING_ADPCM)
{
int adpcmSample = ((s16*)data0)[-2];
int adpcmIndex = ((u8*)data0)[-2];
CSND_ChnSetAdpcmState(chn, 0, adpcmSample, adpcmIndex);
}
}
u32 timer = CSND_TIMER(sampleRate);
@ -319,7 +354,7 @@ Result csndChnPlaySound(int chn, u32 flags, u32 sampleRate, void* data0, void* d
CSND_ChnConfig(flags, paddr0, paddr1, size);
if ((flags & SOUND_REPEAT) && !(flags & SOUND_CONST_BLOCK_SIZE) && paddr1 > paddr0)
if (loopMode == CSND_LOOPMODE_NORMAL && paddr1 > paddr0)
{
// Now that the first block is playing, configure the size of the subsequent blocks
size -= paddr1 - paddr0;