DevKit7/libctru
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Clean the CSND code a bit more

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This commit is contained in:
fincs 2015-01-02 14:36:28 +01:00
parent 59009d531d
commit bc085b5eb1
1 changed files with 20 additions and 21 deletions
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35
libctru/source/services/csnd.c
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@ -11,6 +11,7 @@
vu32* csndSharedMem = NULL;
u32 csndSharedMemSize;
u32 csndChannels = 0;
u32 csndOffsets[4];
static Handle csndHandle = 0;
static Handle csndMutex = 0;
@ -21,17 +22,14 @@ static u32 csndCmdBlockSize = 0x2000;
static u32 csndCmdStartOff = 0;
static u32 csndCmdCurOff = 0;
static Result CSND_Initialize(u32 sharedmem_size, u32 off0, u32 off1, u32 off2, u32 off3)
static Result CSND_Initialize(void)
{
Result ret=0;
u32 *cmdbuf = getThreadCommandBuffer();
cmdbuf[0] = 0x00010140;
cmdbuf[1] = sharedmem_size;
cmdbuf[2] = off0;
cmdbuf[3] = off1;
cmdbuf[4] = off2;
cmdbuf[5] = off3;
cmdbuf[1] = csndSharedMemSize;
memcpy(&cmdbuf[2], &csndOffsets[0], 4*sizeof(u32));
if((ret = svcSendSyncRequest(csndHandle))!=0)return ret;
@ -89,13 +87,14 @@ Result csndInit(void)
ret = srvGetServiceHandle(&csndHandle, "csnd:SND");
if (ret != 0) return ret;
u32 offset0 = csndCmdBlockSize;
u32 offset1 = offset0 + 8;
u32 offset2 = offset1 + 32*sizeof(CSND_ChnInfo);
u32 offset3 = offset2 + 0x10;
csndSharedMemSize = offset3 + 0x3C;
// Calculate offsets and sizes required by the CSND module
csndOffsets[0] = csndCmdBlockSize; // Offset to some unknown DSP status flags
csndOffsets[1] = csndOffsets[0] + 8; // Offset to sound channel information
csndOffsets[2] = csndOffsets[1] + 32*sizeof(CSND_ChnInfo); // Offset to information for an 'unknown' sort of channels
csndOffsets[3] = csndOffsets[2] + 2*8; // Offset to more unknown information
csndSharedMemSize = csndOffsets[3] + 0x3C; // Total size of the CSND shared memory
ret = CSND_Initialize(csndSharedMemSize, offset0, offset1, offset2, offset3);
ret = CSND_Initialize();
if (ret != 0) return ret;
ret = svcMapMemoryBlock(csndSharedMemBlock, (u32)csndSharedMem, 3, 0x10000000);
@ -106,7 +105,7 @@ Result csndInit(void)
ret = CSND_AcquireSoundChannels(&csndChannels);
if (ret != 0) return ret;
// Build index table
// Build channel indices for the sound channel information table
int i, j = 0;
for (i = 0; i < CSND_NUM_CHANNELS; i ++)
{
@ -168,10 +167,10 @@ void csndWriteChnCmd(int cmdid, u8 *cmdparams)
ptr = (vu16*)&csndSharedMem[csndCmdCurOff>>2];
ptr[0] = 0xFFFF;
ptr[1] = cmdid & 0xFFFF;
ptr[1] = cmdid;
ptr[2] = 0;
ptr[3] = 0;
memcpy((void*)&ptr[8>>1], cmdparams, 0x18);
memcpy((void*)&ptr[4], cmdparams, 0x18);
csndCmdCurOff += 0x20;
if (csndCmdCurOff >= csndCmdBlockSize)
@ -314,13 +313,13 @@ Result csndChnPlaySound(u32 channel, u32 looping, u32 encoding, u32 samplerate,
CSND_ChnSetVol(channel, 0xFFFF, 0xFFFF);
CSND_ChnSetPlayState(channel, 1);
return CSND_UpdateChnInfo(false);
return csndExecChnCmds(true);
}
CSND_ChnInfo* csndChnGetInfo(u32 channel)
{
channel = csndChnIdx[channel];
return (CSND_ChnInfo*)(&csndSharedMem[(csndCmdBlockSize+8 + channel*0xc) >> 2]);
return (CSND_ChnInfo*)(&csndSharedMem[(csndOffsets[1] + channel*0xc) >> 2]);
}
Result csndChnGetState(u32 channel, u32 *out)
@ -330,7 +329,7 @@ Result csndChnGetState(u32 channel, u32 *out)
if ((ret = CSND_UpdateChnInfo(true)) != 0)return ret;
memcpy(out, (const void*)&csndSharedMem[(csndCmdBlockSize+8 + channel*0xc) >> 2], 0xc);
memcpy(out, (const void*)&csndSharedMem[(csndOffsets[1] + channel*0xc) >> 2], 0xc);
//out[2] -= 0x0c000000;
return 0;