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CSND: many looping-related discoveries

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This commit is contained in:
fincs 2015-01-02 23:18:39 +01:00
parent ce902bd6d1
commit e562b15a68
2 changed files with 51 additions and 37 deletions
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32
libctru/include/3ds/services/csnd.h
View File

@ -6,18 +6,30 @@
#define CSND_TIMER(n) (0x3FEC3FC / ((u32)(n)))
typedef enum{
CSND_LOOP_DISABLE,
CSND_LOOP_ENABLE,
} CSND_LOOPING;
typedef enum{
typedef enum
{
CSND_ENCODING_PCM8,
CSND_ENCODING_PCM16,
CSND_ENCODING_IMA_ADPCM,
CSND_ENCODING_ADPCM, // IMA-ADPCM
CSND_ENCODING_PSG, // Similar to DS?
} CSND_ENCODING;
#define SOUND_CHANNEL(n) ((u32)(n) & 0x1F)
#define SOUND_FORMAT(n) ((u32)(n) << 12)
enum
{
SOUND_LINEAR_INTERP = BIT(6),
SOUND_REPEAT = BIT(10),
SOUND_CONST_BLOCK_SIZE = BIT(11),
SOUND_ONE_SHOT = 0,
SOUND_FORMAT_8BIT = SOUND_FORMAT(CSND_ENCODING_PCM8),
SOUND_FORMAT_16BIT = SOUND_FORMAT(CSND_ENCODING_PCM16),
SOUND_FORMAT_ADPCM = SOUND_FORMAT(CSND_ENCODING_ADPCM),
SOUND_FORMAT_PSG = SOUND_FORMAT(CSND_ENCODING_PSG),
SOUND_ENABLE = BIT(14),
};
typedef union
{
u32 value[3];
@ -47,14 +59,14 @@ Result csndExecChnCmds(bool waitDone);
void CSND_ChnSetPlayStateR(u32 channel, u32 value);
void CSND_ChnSetPlayState(u32 channel, u32 value);
void CSND_ChnSetLoop(u32 channel, u32 physaddr, u32 size);
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_ChnConfig(u32 channel, u32 looping, u32 encoding, u32 timer, u32 unk0, u32 unk1, u32 physaddr0, u32 physaddr1, u32 totalbytesize);
void CSND_ChnConfig(u32 flags, u32 physaddr0, u32 physaddr1, u32 totalbytesize);
Result CSND_UpdateChnInfo(bool waitDone);
Result csndChnPlaySound(u32 channel, u32 looping, u32 encoding, u32 samplerate, u32 *vaddr0, u32 *vaddr1, u32 totalbytesize, u32 unk0, u32 unk1);
Result csndChnPlaySound(int chn, u32 flags, u32 sampleRate, void* data0, void* data1, u32 size);
CSND_ChnInfo* csndChnGetInfo(u32 channel); // Requires previous CSND_UpdateChnInfo()

56
libctru/source/services/csnd.c
View File

@ -223,7 +223,7 @@ void CSND_ChnSetPlayState(u32 channel, u32 value)
csndWriteChnCmd(0x1, (u8*)&cmdparams);
}
void CSND_ChnSetLoop(u32 channel, u32 physaddr, u32 size)
void CSND_ChnSetBlock(u32 channel, int block, u32 physaddr, u32 size)
{
u32 cmdparams[0x18>>2];
@ -233,7 +233,7 @@ void CSND_ChnSetLoop(u32 channel, u32 physaddr, u32 size)
cmdparams[1] = physaddr;
cmdparams[2] = size;
csndWriteChnCmd(0x3, (u8*)&cmdparams);
csndWriteChnCmd(block ? 0x3 : 0xA, (u8*)&cmdparams);
}
void CSND_ChnSetVol(u32 channel, u16 left, u16 right)
@ -260,23 +260,15 @@ void CSND_ChnSetTimer(u32 channel, u32 timer)
csndWriteChnCmd(0x8, (u8*)&cmdparams);
}
void CSND_ChnConfig(u32 channel, u32 looping, u32 encoding, u32 timer, u32 unk0, u32 unk1, u32 physaddr0, u32 physaddr1, u32 totalbytesize)
void CSND_ChnConfig(u32 flags, u32 physaddr0, u32 physaddr1, u32 totalbytesize)
{
u32 cmdparams[0x18>>2];
memset(cmdparams, 0, 0x18);
cmdparams[0] = channel & 0x1f;
cmdparams[0] |= (unk0 & 0xf) << 6;
if (!looping) cmdparams[0] |= 2 << 10;
if (looping) cmdparams[0] |= 1 << 10;
cmdparams[0] |= (encoding & 3) << 12;
cmdparams[0] |= (unk1 & 3) << 14;
if (timer < 0x42) timer = 0x42;
if (timer > 0xffff) timer = 0xffff;
cmdparams[0] |= timer<<16;
cmdparams[0] = flags;
cmdparams[1] = 0; // Unknown
cmdparams[2] = 0; // Unknown
cmdparams[3] = physaddr0;
cmdparams[4] = physaddr1;
cmdparams[5] = totalbytesize;
@ -294,25 +286,35 @@ Result CSND_UpdateChnInfo(bool waitDone)
return csndExecChnCmds(waitDone);
}
Result csndChnPlaySound(u32 channel, u32 looping, u32 encoding, u32 samplerate, u32 *vaddr0, u32 *vaddr1, u32 totalbytesize, u32 unk0, u32 unk1)
Result csndChnPlaySound(int chn, u32 flags, u32 sampleRate, void* data0, void* data1, u32 size)
{
if (!(csndChannels & BIT(channel)))
if (!(csndChannels & BIT(chn)))
return 1;
u32 physaddr0 = 0;
u32 physaddr1 = 0;
u32 paddr0 = 0, paddr1 = 0;
physaddr0 = osConvertVirtToPhys((u32)vaddr0);
physaddr1 = osConvertVirtToPhys((u32)vaddr1);
CSND_ChnConfig(channel, looping, encoding, CSND_TIMER(samplerate), unk0, unk1, physaddr0, physaddr1, totalbytesize);
if(looping)
if (((flags >> 12) & 3) != CSND_ENCODING_PSG)
{
if(physaddr1>physaddr0)totalbytesize-= (u32)physaddr1 - (u32)physaddr0;
CSND_ChnSetLoop(channel, physaddr1, totalbytesize);
if (data0) paddr0 = osConvertVirtToPhys((u32)data0);
if (data1) paddr1 = osConvertVirtToPhys((u32)data1);
}
CSND_ChnSetVol(channel, 0xFFFF, 0xFFFF);
CSND_ChnSetPlayState(channel, 1);
u32 timer = CSND_TIMER(sampleRate);
if (timer < 0x0042) timer = 0x0042;
else if (timer > 0xFFFF) timer = 0xFFFF;
flags &= ~0xFFFF001F;
flags |= SOUND_ENABLE | SOUND_CHANNEL(chn) | (timer << 16);
CSND_ChnConfig(flags, paddr0, paddr1, size);
if ((flags & SOUND_REPEAT) && !(flags & SOUND_CONST_BLOCK_SIZE) && paddr1 > paddr0)
{
// Now that the first block is playing, configure the size of the subsequent blocks
size -= paddr1 - paddr0;
CSND_ChnSetBlock(chn, 1, paddr1, size);
}
CSND_ChnSetVol(chn, 0xFFFF, 0xFFFF);
return csndExecChnCmds(true);
}