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ZeldaHLE: Rip out the whole voice processing code. Still boots games, but no sound at all.

This commit is contained in:
Pierre Bourdon 2014-03-31 02:54:15 +02:00
parent a92727e862
commit 22ec258194
8 changed files with 7 additions and 1346 deletions
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3
Source/Core/Core/CMakeLists.txt
View File

@ -74,9 +74,6 @@ set(SRCS ActionReplay.cpp
HW/DSPHLE/UCodes/ROM.cpp
HW/DSPHLE/UCodes/UCodes.cpp
HW/DSPHLE/UCodes/Zelda.cpp
HW/DSPHLE/UCodes/ZeldaADPCM.cpp
HW/DSPHLE/UCodes/ZeldaSynth.cpp
HW/DSPHLE/UCodes/ZeldaVoice.cpp
HW/DSPHLE/MailHandler.cpp
HW/DSPHLE/DSPHLE.cpp
HW/DSPLLE/DSPDebugInterface.cpp

3
Source/Core/Core/Core.vcxproj
View File

@ -108,9 +108,6 @@
<ClCompile Include="HW\DSPHLE\UCodes\INIT.cpp" />
<ClCompile Include="HW\DSPHLE\UCodes\ROM.cpp" />
<ClCompile Include="HW\DSPHLE\UCodes\Zelda.cpp" />
<ClCompile Include="HW\DSPHLE\UCodes\ZeldaADPCM.cpp" />
<ClCompile Include="HW\DSPHLE\UCodes\ZeldaSynth.cpp" />
<ClCompile Include="HW\DSPHLE\UCodes\ZeldaVoice.cpp" />
<ClCompile Include="HW\DSPLLE\DSPDebugInterface.cpp" />
<ClCompile Include="HW\DSPLLE\DSPHost.cpp" />
<ClCompile Include="HW\DSPLLE\DSPLLE.cpp" />

9
Source/Core/Core/Core.vcxproj.filters
View File

@ -336,15 +336,6 @@
<ClCompile Include="HW\DSPHLE\UCodes\Zelda.cpp">
<Filter>HW %28Flipper/Hollywood%29\DSP Interface + HLE\HLE\uCodes</Filter>
</ClCompile>
<ClCompile Include="HW\DSPHLE\UCodes\ZeldaADPCM.cpp">
<Filter>HW %28Flipper/Hollywood%29\DSP Interface + HLE\HLE\uCodes</Filter>
</ClCompile>
<ClCompile Include="HW\DSPHLE\UCodes\ZeldaSynth.cpp">
<Filter>HW %28Flipper/Hollywood%29\DSP Interface + HLE\HLE\uCodes</Filter>
</ClCompile>
<ClCompile Include="HW\DSPHLE\UCodes\ZeldaVoice.cpp">
<Filter>HW %28Flipper/Hollywood%29\DSP Interface + HLE\HLE\uCodes</Filter>
</ClCompile>
<ClCompile Include="HW\DSPHLE\UCodes\UCodes.cpp">
<Filter>HW %28Flipper/Hollywood%29\DSP Interface + HLE\HLE\uCodes</Filter>
</ClCompile>

120
Source/Core/Core/HW/DSPHLE/UCodes/Zelda.cpp
View File

@ -23,21 +23,10 @@ ZeldaUCode::ZeldaUCode(DSPHLE *dsphle, u32 crc)
m_current_voice(0),
m_current_buffer(0),
m_num_buffers(0),
m_voice_pbs_addr(0),
m_unk_table_addr(0),
m_reverb_pbs_addr(0),
m_right_buffers_addr(0),
m_left_buffers_addr(0),
m_pos(0),
m_dma_base_addr(0),
m_num_steps(0),
m_list_in_progress(false),
m_step(0),
m_read_offset(0),
m_mail_state(WaitForMail),
m_num_pbs(0),
m_pb_address(0),
m_pb_address2(0)
m_read_offset(0)
{
DEBUG_LOG(DSPHLE, "UCode_Zelda - add boot mails for handshake");
@ -52,34 +41,11 @@ ZeldaUCode::ZeldaUCode(DSPHLE *dsphle, u32 crc)
DSP::GenerateDSPInterruptFromDSPEmu(DSP::INT_DSP);
m_mail_handler.PushMail(0xF3551111); // handshake
}
m_voice_buffer = new s32[256 * 1024];
m_resample_buffer = new s16[256 * 1024];
m_left_buffer = new s32[256 * 1024];
m_right_buffer = new s32[256 * 1024];
memset(m_buffer, 0, sizeof(m_buffer));
memset(m_sync_flags, 0, sizeof(m_sync_flags));
memset(m_afc_coef_table, 0, sizeof(m_afc_coef_table));
memset(m_pb_mask, 0, sizeof(m_pb_mask));
}
ZeldaUCode::~ZeldaUCode()
{
m_mail_handler.Clear();
delete [] m_voice_buffer;
delete [] m_resample_buffer;
delete [] m_left_buffer;
delete [] m_right_buffer;
}
u8 *ZeldaUCode::GetARAMPointer(u32 address)
{
if (IsDMAVersion())
return Memory::GetPointer(m_dma_base_addr) + address;
else
return DSP::GetARAMPtr() + address;
}
void ZeldaUCode::Update()
@ -116,7 +82,7 @@ void ZeldaUCode::HandleMail_LightVersion(u32 mail)
{
DSP::GenerateDSPInterruptFromDSPEmu(DSP::INT_DSP);
MixAudio();
// TODO(delroth): Mix audio.
m_current_buffer++;
@ -176,7 +142,7 @@ void ZeldaUCode::HandleMail_SMSVersion(u32 mail)
m_num_sync_mail = 0;
m_sync_in_progress = false;
MixAudio();
// TODO(delroth): Mix audio.
m_current_buffer++;
@ -281,7 +247,7 @@ void ZeldaUCode::HandleMail_NormalVersion(u32 mail)
if (m_current_voice >= m_num_voices)
{
MixAudio();
// TODO(delroth): Mix audio.
m_current_buffer++;
@ -403,63 +369,16 @@ void ZeldaUCode::ExecuteList()
// DsetupTable ... zelda ww jumps to 0x0095
case 0x01:
{
m_num_voices = extra_data;
m_voice_pbs_addr = Read32() & 0x7FFFFFFF;
m_unk_table_addr = Read32() & 0x7FFFFFFF;
m_afc_coef_table_addr = Read32() & 0x7FFFFFFF;
m_reverb_pbs_addr = Read32() & 0x7FFFFFFF; // WARNING: reverb PBs are very different from voice PBs!
// Read the other table
u16 *tmp_ptr = (u16*)Memory::GetPointer(m_unk_table_addr);
for (int i = 0; i < 0x280; i++)
m_misc_table[i] = (s16)Common::swap16(tmp_ptr[i]);
// Read AFC coef table
tmp_ptr = (u16*)Memory::GetPointer(m_afc_coef_table_addr);
for (int i = 0; i < 32; i++)
m_afc_coef_table[i] = (s16)Common::swap16(tmp_ptr[i]);
DEBUG_LOG(DSPHLE, "DsetupTable");
DEBUG_LOG(DSPHLE, "Num voice param blocks: %i", m_num_voices);
DEBUG_LOG(DSPHLE, "Voice param blocks address: 0x%08x", m_voice_pbs_addr);
// This points to some strange data table. Don't know yet what it's for. Reverb coefs?
DEBUG_LOG(DSPHLE, "DSPRES_FILTER (size: 0x40): 0x%08x", m_unk_table_addr);
// Zelda WW: This points to a 64-byte array of coefficients, which are EXACTLY the same
// as the AFC ADPCM coef array in decode.c of the in_cube winamp plugin,
// which can play Zelda audio. So, these should definitely be used when decoding AFC.
DEBUG_LOG(DSPHLE, "DSPADPCM_FILTER (size: 0x500): 0x%08x", m_afc_coef_table_addr);
DEBUG_LOG(DSPHLE, "Reverb param blocks address: 0x%08x", m_reverb_pbs_addr);
}
Read32(); Read32(); Read32(); Read32();
break;
// SyncFrame ... zelda ww jumps to 0x0243
case 0x02:
{
m_sync_cmd_pending = true;
m_current_buffer = 0;
m_num_buffers = (cmd_mail >> 16) & 0xFF;
// Addresses for right & left buffers in main memory
// Each buffer is 160 bytes long. The number of (both left & right) buffers
// is set by the first mail of the list.
m_left_buffers_addr = Read32() & 0x7FFFFFFF;
m_right_buffers_addr = Read32() & 0x7FFFFFFF;
DEBUG_LOG(DSPHLE, "DsyncFrame");
// These alternate between three sets of mixing buffers. They are all three fairly near,
// but not at, the ADMA read addresses.
DEBUG_LOG(DSPHLE, "Right buffer address: 0x%08x", m_right_buffers_addr);
DEBUG_LOG(DSPHLE, "Left buffer address: 0x%08x", m_left_buffers_addr);
Read32(); Read32();
if (IsLightVersion())
break;
else
return;
}
// Simply sends the sync messages
@ -485,11 +404,7 @@ void ZeldaUCode::ExecuteList()
// This opcode, in the SMG ucode, sets the base address for audio data transfers from main memory (using DMA).
// In the Zelda ucode, it is dummy, because this ucode uses accelerator for audio data transfers.
case 0x0e:
{
m_dma_base_addr = Read32() & 0x7FFFFFFF;
DEBUG_LOG(DSPHLE, "DsetDMABaseAddr");
DEBUG_LOG(DSPHLE, "DMA base address: 0x%08x", m_dma_base_addr);
}
Read32();
break;
// default ... zelda ww jumps to 0x0043
@ -521,9 +436,6 @@ u32 ZeldaUCode::GetUpdateMs()
void ZeldaUCode::DoState(PointerWrap &p)
{
p.Do(m_afc_coef_table);
p.Do(m_misc_table);
p.Do(m_sync_in_progress);
p.Do(m_max_voice);
p.Do(m_sync_flags);
@ -537,17 +449,6 @@ void ZeldaUCode::DoState(PointerWrap &p)
p.Do(m_current_buffer);
p.Do(m_num_buffers);
p.Do(m_voice_pbs_addr);
p.Do(m_unk_table_addr);
p.Do(m_afc_coef_table_addr);
p.Do(m_reverb_pbs_addr);
p.Do(m_right_buffers_addr);
p.Do(m_left_buffers_addr);
p.Do(m_pos);
p.Do(m_dma_base_addr);
p.Do(m_num_steps);
p.Do(m_list_in_progress);
p.Do(m_step);
@ -555,12 +456,5 @@ void ZeldaUCode::DoState(PointerWrap &p)
p.Do(m_read_offset);
p.Do(m_mail_state);
p.Do(m_pb_mask);
p.Do(m_num_pbs);
p.Do(m_pb_address);
p.Do(m_pb_address2);
DoStateShared(p);
}

187
Source/Core/Core/HW/DSPHLE/UCodes/Zelda.h
View File

@ -7,113 +7,6 @@
#include "Common/CommonTypes.h"
#include "Core/HW/DSPHLE/UCodes/UCodes.h"
// Obviously missing things that must be in here, somewhere among the "unknown":
// * Volume
// * L/R Pan
// * (probably) choice of resampling algorithm (point, linear, cubic)
union ZeldaVoicePB
{
struct
{
// Read-Write part
u16 Status; // 0x00 | 1 = play, 0 = stop
u16 KeyOff; // 0x01 | writing 1 stops voice?
u16 RatioInt; // 0x02 | Position delta (playback speed)
u16 Unk03; // 0x03 | unknown
u16 NeedsReset; // 0x04 | indicates if some values in PB need to be reset
u16 ReachedEnd; // 0x05 | set to 1 when end reached
u16 IsBlank; // 0x06 | 0 = normal sound, 1 = samples are always the same
u16 Unk07; // 0x07 | unknown, in zelda always 0x0010. Something to do with number of saved samples (0x68)?
u16 SoundType; // 0x08 | "Sound type": so far in zww: 0x0d00 for music (volume mode 0), 0x4861 for sfx (volume mode 1)
u16 volumeLeft1; // 0x09 | Left Volume 1 // There's probably two of each because they should be ramped within each frame.
u16 volumeLeft2; // 0x0A | Left Volume 2
u16 Unk0B; // 0x0B | unknown
u16 SoundType2; // 0x0C | "Sound type" 2 (not really sound type)
u16 volumeRight1; // 0x0D | Right Volume 1
u16 volumeRight2; // 0x0E | Right Volume 2
u16 Unk0F; // 0x0F | unknown
u16 SoundType3; // 0x10 | "Sound type" 3 (not really sound type)
u16 volumeUnknown1_1; // 0x11 | Unknown Volume 1
u16 volumeUnknown1_2; // 0x12 | Unknown Volume 1
u16 Unk13; // 0x13 | unknown
u16 SoundType4; // 0x14 | "Sound type" 4 (not really sound type)
u16 volumeUnknown2_1; // 0x15 | Unknown Volume 2
u16 volumeUnknown2_2; // 0x16 | Unknown Volume 2
u16 Unk17; // 0x17 | unknown
u16 Unk18[0x10]; // 0x18 | unknown
u16 Unk28; // 0x28 | unknown
u16 Unk29; // 0x29 | unknown // multiplied by 0x2a @ 0d21/ZWW
u16 Unk2a; // 0x2A | unknown // loaded at 0d2e/ZWW
u16 Unk2b; // 0x2B | unknown
u16 VolumeMode; // 0x2C | unknown // See 0337/ZWW
u16 Unk2D; // 0x2D | unknown
u16 Unk2E; // 0x2E | unknown
u16 Unk2F; // 0x2F | unknown
u16 CurSampleFrac; // 0x30 | Fractional part of the current sample position
u16 Unk31; // 0x31 | unknown / unused
u16 CurBlock; // 0x32 | current block? used by zelda's AFC decoder. we don't need it.
u16 FixedSample; // 0x33 | sample value for "blank" voices
u32 RestartPos; // 0x34 | restart pos / "loop start offset"
u16 Unk36[2]; // 0x36 | unknown // loaded at 0adc/ZWW in 0x21 decoder
u32 CurAddr; // 0x38 | current address
u32 RemLength; // 0x3A | remaining length
u16 ResamplerOldData[4]; // 0x3C | The resampler stores the last 4 decoded samples here from the previous frame, so that the filter kernel has something to read before the start of the buffer.
u16 Unk40[0x10]; // 0x40 | Used as some sort of buffer by IIR
u16 Unk50[0x8]; // 0x50 | Used as some sort of buffer by 06ff/ZWW
u16 Unk58[0x8]; // 0x58 |
u16 Unk60[0x6]; // 0x60 |
u16 YN2; // 0x66 | YN2
u16 YN1; // 0x67 | YN1
u16 Unk68[0x10]; // 0x68 | Saved samples from last decode?
u16 FilterState1; // 0x78 | unknown // ZWW: 0c84_FilterBufferInPlace loads and stores. Simply, the filter state.
u16 FilterState2; // 0x79 | unknown // ZWW: same as above. these two are active if 0x04a8 != 0.
u16 Unk7A; // 0x7A | unknown
u16 Unk7B; // 0x7B | unknown
u16 Unk7C; // 0x7C | unknown
u16 Unk7D; // 0x7D | unknown
u16 Unk7E; // 0x7E | unknown
u16 Unk7F; // 0x7F | unknown
// Read-only part
u16 Format; // 0x80 | audio format
u16 RepeatMode; // 0x81 | 0 = one-shot, non zero = loop
u16 LoopYN1; // 0x82 | YN1 reload (when AFC loops)
u16 LoopYN2; // 0x83 | YN2 reload (when AFC loops)
u16 Unk84; // 0x84 | IIR Filter # coefs?
u16 StopOnSilence; // 0x85 | Stop on silence? (Flag for something volume related. Decides the weird stuff at 035a/ZWW, alco 0cd3)
u16 Unk86; // 0x86 | unknown
u16 Unk87; // 0x87 | unknown
u32 LoopStartPos; // 0x88 | loopstart pos
u32 Length; // 0x8A | sound length
u32 StartAddr; // 0x8C | sound start address
u32 UnkAddr; // 0x8E | ???
u16 Padding[0x10]; // 0x90 | padding
u16 Padding2[0x8]; // 0xa0 | FIR filter coefs of some sort (0xa4 controls the appearance of 0xa5-0xa7 and is almost always 0x7FFF)
u16 FilterEnable; // 0xa8 | FilterBufferInPlace enable
u16 Padding3[0x7]; // 0xa9 | padding
u16 Padding4[0x10]; // 0xb0 | padding
};
u16 raw[0xc0]; // WARNING-do not use on parts of the 32-bit values - they are swapped!
};
union ZeldaUnkPB
{
struct
{
u16 Control; // 0x00 | control
u16 Unk01; // 0x01 | unknown
u32 SrcAddr; // 0x02 | some address
u16 Unk04[0xC]; // 0x04 | unknown
};
u16 raw[16];
};
class ZeldaUCode : public UCodeInterface
{
public:
@ -127,17 +20,8 @@ public:
void HandleMail_NormalVersion(u32 mail);
void Update() override;
void CopyPBsFromRAM();
void CopyPBsToRAM();
void DoState(PointerWrap &p) override;
int *templbuffer;
int *temprbuffer;
// Simple dump ...
int DumpAFC(u8* pIn, const int size, const int srate);
u32 Read32()
{
u32 res = *(u32*)&m_buffer[m_read_offset];
@ -197,17 +81,6 @@ private:
}
}
// These are the only dynamically allocated things allowed in the ucode.
s32* m_voice_buffer;
s16* m_resample_buffer;
s32* m_left_buffer;
s32* m_right_buffer;
// If you add variables, remember to keep DoState() and the constructor up to date.
s16 m_afc_coef_table[32];
s16 m_misc_table[0x280];
bool m_sync_in_progress;
u32 m_max_voice;
u32 m_sync_flags[16];
@ -222,21 +95,6 @@ private:
u32 m_current_buffer;
u32 m_num_buffers;
// Those are set by command 0x1 (DsetupTable)
u32 m_voice_pbs_addr;
u32 m_unk_table_addr;
u32 m_afc_coef_table_addr;
u32 m_reverb_pbs_addr;
u32 m_right_buffers_addr;
u32 m_left_buffers_addr;
//u32 m_unkAddr;
u32 m_pos;
// Only in SMG ucode
// Set by command 0xE (DsetDMABaseAddr)
u32 m_dma_base_addr;
// List, buffer management =====================
u32 m_num_steps;
bool m_list_in_progress;
@ -245,50 +103,5 @@ private:
u32 m_read_offset;
enum EMailState
{
WaitForMail,
ReadingFrameSync,
ReadingMessage,
ReadingSystemMsg
};
EMailState m_mail_state;
u16 m_pb_mask[0x10];
u32 m_num_pbs;
u32 m_pb_address; // The main param block array
u32 m_pb_address2; // 4 smaller param blocks
void ExecuteList();
u8 *GetARAMPointer(u32 address);
// AFC decoder
static void AFCdecodebuffer(const s16 *coef, const char *input, signed short *out, short *histp, short *hist2p, int type);
void ReadVoicePB(u32 _Addr, ZeldaVoicePB& PB);
void WritebackVoicePB(u32 _Addr, ZeldaVoicePB& PB);
// Voice formats
void RenderSynth_Constant(ZeldaVoicePB &PB, s32* _Buffer, int _Size);
void RenderSynth_RectWave(ZeldaVoicePB &PB, s32* _Buffer, int _Size);
void RenderSynth_SawWave(ZeldaVoicePB &PB, s32* _Buffer, int _Size);
void RenderSynth_WaveTable(ZeldaVoicePB &PB, s32* _Buffer, int _Size);
void RenderVoice_PCM8(ZeldaVoicePB& PB, s16* _Buffer, int _Size);
void RenderVoice_PCM16(ZeldaVoicePB& PB, s16* _Buffer, int _Size);
void RenderVoice_AFC(ZeldaVoicePB& PB, s16* _Buffer, int _Size);
void RenderVoice_Raw(ZeldaVoicePB& PB, s16* _Buffer, int _Size);
void Resample(ZeldaVoicePB &PB, int size, s16 *in, s32 *out, bool do_resample = false);
int ConvertRatio(int pb_ratio);
int SizeForResampling(ZeldaVoicePB &PB, int size);
// Renders a voice and mixes it into LeftBuffer, RightBuffer
void RenderAddVoice(ZeldaVoicePB& PB, s32* _LeftBuffer, s32* _RightBuffer, int _Size);
void MixAudio();
};

68
Source/Core/Core/HW/DSPHLE/UCodes/ZeldaADPCM.cpp
View File

@ -1,68 +0,0 @@
// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/CommonTypes.h"
#include "Common/MathUtil.h"
#include "Core/HW/DSPHLE/UCodes/Zelda.h"
void ZeldaUCode::AFCdecodebuffer(const s16 *coef, const char *src, signed short *out, short *histp, short *hist2p, int type)
{
// First 2 nibbles are ADPCM scale etc.
short delta = 1 << (((*src) >> 4) & 0xf);
short idx = (*src) & 0xf;
src++;
short nibbles[16];
if (type == 9)
{
for (int i = 0; i < 16; i += 2)
{
nibbles[i + 0] = *src >> 4;
nibbles[i + 1] = *src & 15;
src++;
}
for (auto& nibble : nibbles)
{
if (nibble >= 8)
nibble = nibble - 16;
nibble <<= 11;
}
}
else
{
// In Pikmin, Dolphin's engine sound is using AFC type 5, even though such a sound is hard
// to compare, it seems like to sound exactly like a real GC
// In Super Mario Sunshine, you can get such a sound by talking to/jumping on anyone
for (int i = 0; i < 16; i += 4)
{
nibbles[i + 0] = (*src >> 6) & 0x03;
nibbles[i + 1] = (*src >> 4) & 0x03;
nibbles[i + 2] = (*src >> 2) & 0x03;
nibbles[i + 3] = (*src >> 0) & 0x03;
src++;
}
for (auto& nibble : nibbles)
{
if (nibble >= 2)
nibble = nibble - 4;
nibble <<= 13;
}
}
short hist = *histp;
short hist2 = *hist2p;
for (int i = 0; i < 16; i++)
{
int sample = delta * nibbles[i] + ((int)hist * coef[idx * 2]) + ((int)hist2 * coef[idx * 2 + 1]);
sample >>= 11;
MathUtil::Clamp(&sample, -32768, 32767);
out[i] = sample;
hist2 = hist;
hist = (short)sample;
}
*histp = hist;
*hist2p = hist2;
}

173
Source/Core/Core/HW/DSPHLE/UCodes/ZeldaSynth.cpp
View File

@ -1,173 +0,0 @@
// Copyright 2008 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <cmath>
#include "Core/HW/DSPHLE/UCodes/UCodes.h"
#include "Core/HW/DSPHLE/UCodes/Zelda.h"
void ZeldaUCode::RenderSynth_RectWave(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
{
s64 ratio = ((s64)PB.RatioInt << 16) * 16;
s64 TrueSamplePosition = PB.CurSampleFrac;
// PB.Format == 0x3 -> Rectangular Wave, 0x0 -> Square Wave
unsigned int mask = PB.Format ? 3 : 1;
// int shift = PB.Format ? 2 : 1; // Unused?
u32 pos[2] = {0, 0};
int i = 0;
if (PB.KeyOff != 0)
return;
if (PB.NeedsReset)
{
PB.RemLength = PB.Length - PB.RestartPos;
PB.CurAddr = PB.StartAddr + (PB.RestartPos << 1);
PB.ReachedEnd = 0;
}
_lRestart:
if (PB.ReachedEnd)
{
PB.ReachedEnd = 0;
if (PB.RepeatMode == 0)
{
PB.KeyOff = 1;
PB.RemLength = 0;
PB.CurAddr = PB.StartAddr + (PB.RestartPos << 1) + PB.Length;
return;
}
else
{
PB.RestartPos = PB.LoopStartPos;
PB.RemLength = PB.Length - PB.RestartPos;
PB.CurAddr = PB.StartAddr + (PB.RestartPos << 1);
pos[1] = 0; pos[0] = 0;
}
}
while (i < _Size)
{
s16 sample = ((pos[1] & mask) == mask) ? 0xc000 : 0x4000;
TrueSamplePosition += (ratio >> 16);
_Buffer[i++] = (s32)sample;
(*(u64*)&pos) += ratio;
if ((pos[1] + ((PB.CurAddr - PB.StartAddr) >> 1)) >= PB.Length)
{
PB.ReachedEnd = 1;
goto _lRestart;
}
}
if (PB.RemLength < pos[1])
{
PB.RemLength = 0;
PB.ReachedEnd = 1;
}
else
{
PB.RemLength -= pos[1];
}
PB.CurSampleFrac = TrueSamplePosition & 0xFFFF;
}
void ZeldaUCode::RenderSynth_SawWave(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
{
s32 ratio = (s32)ceil((float)PB.RatioInt / 3);
s64 pos = PB.CurSampleFrac;
for (int i = 0; i < _Size; i++)
{
pos += ratio;
_Buffer[i] = pos & 0xFFFF;
}
PB.CurSampleFrac = pos & 0xFFFF;
}
void ZeldaUCode::RenderSynth_Constant(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
{
// TODO: Header, footer
for (int i = 0; i < _Size; i++)
_Buffer[i] = (s32)PB.RatioInt;
}
// A piece of code from LLE so we can see how the wrap register affects the sound
inline u16 AddValueToReg(u32 ar, s32 ix)
{
u32 wr = 0x3f;
u32 mx = (wr | 1) << 1;
u32 nar = ar + ix;
u32 dar = (nar ^ ar ^ ix) & mx;
if (ix >= 0)
{
if (dar > wr) //overflow
nar -= wr + 1;
}
else
{
if ((((nar + wr + 1) ^ nar) & dar) <= wr) //underflow or below min for mask
nar += wr + 1;
}
return nar;
}
void ZeldaUCode::RenderSynth_WaveTable(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
{
u16 address;
switch (PB.Format)
{
default:
case 0x0004:
address = 0x140;
break;
case 0x0007:
address = 0x100;
break;
case 0x000b:
address = 0x180;
break;
case 0x000c:
address = 0x1c0;
break;
}
// TODO: Resample this!
INFO_LOG(DSPHLE, "Synthesizing the incomplete format 0x%04x", PB.Format);
u64 ACC0 = PB.CurSampleFrac << 6;
ACC0 &= 0xffff003fffffULL;
address = AddValueToReg(address, ((ACC0 >> 16) & 0xffff));
ACC0 &= 0xffff0000ffffULL;
for (int i = 0; i < 0x50; i++)
{
_Buffer[i] = m_misc_table[address];
ACC0 += PB.RatioInt << 5;
address = AddValueToReg(address, ((ACC0 >> 16) & 0xffff));
ACC0 &= 0xffff0000ffffULL;
}
ACC0 += address << 16;
PB.CurSampleFrac = (ACC0 >> 6) & 0xffff;
}

790
Source/Core/Core/HW/DSPHLE/UCodes/ZeldaVoice.cpp
View File

@ -1,790 +0,0 @@
// Copyright 2009 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <sstream>
#include "Common/CommonFuncs.h"
#include "Common/MathUtil.h"
#include "Core/HW/DSP.h"
#include "Core/HW/Memmap.h"
#include "Core/HW/DSPHLE/UCodes/UCodes.h"
#include "Core/HW/DSPHLE/UCodes/Zelda.h"
void ZeldaUCode::ReadVoicePB(u32 _Addr, ZeldaVoicePB& PB)
{
u16 *memory = (u16*)Memory::GetPointer(_Addr);
// Perform byteswap
for (int i = 0; i < (0x180 / 2); i++)
((u16*)&PB)[i] = Common::swap16(memory[i]);
// Word swap all 32-bit variables.
PB.RestartPos = (PB.RestartPos << 16) | (PB.RestartPos >> 16);
PB.CurAddr = (PB.CurAddr << 16) | (PB.CurAddr >> 16);
PB.RemLength = (PB.RemLength << 16) | (PB.RemLength >> 16);
// Read only part
PB.LoopStartPos = (PB.LoopStartPos << 16) | (PB.LoopStartPos >> 16);
PB.Length = (PB.Length << 16) | (PB.Length >> 16);
PB.StartAddr = (PB.StartAddr << 16) | (PB.StartAddr >> 16);
PB.UnkAddr = (PB.UnkAddr << 16) | (PB.UnkAddr >> 16);
}
void ZeldaUCode::WritebackVoicePB(u32 _Addr, ZeldaVoicePB& PB)
{
u16 *memory = (u16*)Memory::GetPointer(_Addr);
// Word swap all 32-bit variables.
PB.RestartPos = (PB.RestartPos << 16) | (PB.RestartPos >> 16);
PB.CurAddr = (PB.CurAddr << 16) | (PB.CurAddr >> 16);
PB.RemLength = (PB.RemLength << 16) | (PB.RemLength >> 16);
// Perform byteswap
// Only the first 0x100 bytes are written back
for (int i = 0; i < (0x100 / 2); i++)
memory[i] = Common::swap16(((u16*)&PB)[i]);
}
int ZeldaUCode::ConvertRatio(int pb_ratio)
{
return pb_ratio * 16;
}
int ZeldaUCode::SizeForResampling(ZeldaVoicePB &PB, int size)
{
// This is the little calculation at the start of every sample decoder
// in the ucode.
return (PB.CurSampleFrac + size * ConvertRatio(PB.RatioInt)) >> 16;
}
// Simple resampler, linear interpolation.
// Any future state should be stored in PB.raw[0x3c to 0x3f].
// In must point 4 samples into a buffer.
void ZeldaUCode::Resample(ZeldaVoicePB &PB, int size, s16 *in, s32 *out, bool do_resample)
{
if (!do_resample)
{
memcpy(out, in, size * sizeof(int));
return;
}
for (int i = 0; i < 4; i++)
{
in[i - 4] = (s16)PB.ResamplerOldData[i];
}
int ratio = ConvertRatio(PB.RatioInt);
int in_size = SizeForResampling(PB, size);
int position = PB.CurSampleFrac;
for (int i = 0; i < size; i++)
{
int int_pos = (position >> 16);
int frac = ((position & 0xFFFF) >> 1);
out[i] = (in[int_pos - 3] * (frac ^ 0x7FFF) + in[int_pos - 2] * frac) >> 15;
position += ratio;
}
for (int i = 0; i < 4; i++)
{
PB.ResamplerOldData[i] = (u16)(s16)in[in_size - 4 + i];
}
PB.CurSampleFrac = position & 0xFFFF;
}
static void UpdateSampleCounters10(ZeldaVoicePB &PB)
{
PB.RemLength = PB.Length - PB.RestartPos;
PB.CurAddr = PB.StartAddr + (PB.RestartPos << 1);
PB.ReachedEnd = 0;
}
void ZeldaUCode::RenderVoice_PCM16(ZeldaVoicePB &PB, s16 *_Buffer, int _Size)
{
int _RealSize = SizeForResampling(PB, _Size);
u32 rem_samples = _RealSize;
if (PB.KeyOff)
goto clear_buffer;
if (PB.NeedsReset)
{
UpdateSampleCounters10(PB);
for (int i = 0; i < 4; i++)
PB.ResamplerOldData[i] = 0; // Doesn't belong here, but dunno where to do it.
}
if (PB.ReachedEnd)
{
PB.ReachedEnd = 0;
reached_end:
if (!PB.RepeatMode)
{
// One shot - play zeros the rest of the buffer.
clear_buffer:
for (u32 i = 0; i < rem_samples; i++)
*_Buffer++ = 0;
PB.KeyOff = 1;
return;
}
else
{
PB.RestartPos = PB.LoopStartPos;
UpdateSampleCounters10(PB);
}
}
// SetupAccelerator
const s16 *read_ptr = (s16*)GetARAMPointer(PB.CurAddr);
if (PB.RemLength < (u32)rem_samples)
{
// finish-up loop
for (u32 i = 0; i < PB.RemLength; i++)
*_Buffer++ = Common::swap16(*read_ptr++);
rem_samples -= PB.RemLength;
goto reached_end;
}
// main render loop
for (u32 i = 0; i < rem_samples; i++)
*_Buffer++ = Common::swap16(*read_ptr++);
PB.RemLength -= rem_samples;
if (PB.RemLength == 0)
PB.ReachedEnd = 1;
PB.CurAddr += rem_samples << 1;
}
static void UpdateSampleCounters8(ZeldaVoicePB &PB)
{
PB.RemLength = PB.Length - PB.RestartPos;
PB.CurAddr = PB.StartAddr + PB.RestartPos;
PB.ReachedEnd = 0;
}
void ZeldaUCode::RenderVoice_PCM8(ZeldaVoicePB &PB, s16 *_Buffer, int _Size)
{
int _RealSize = SizeForResampling(PB, _Size);
u32 rem_samples = _RealSize;
if (PB.KeyOff)
goto clear_buffer;
if (PB.NeedsReset)
{
UpdateSampleCounters8(PB);
for (int i = 0; i < 4; i++)
PB.ResamplerOldData[i] = 0; // Doesn't belong here, but dunno where to do it.
}
if (PB.ReachedEnd)
{
reached_end:
PB.ReachedEnd = 0;
if (!PB.RepeatMode)
{
// One shot - play zeros the rest of the buffer.
clear_buffer:
for (u32 i = 0; i < rem_samples; i++)
*_Buffer++ = 0;
PB.KeyOff = 1;
return;
}
else
{
PB.RestartPos = PB.LoopStartPos;
UpdateSampleCounters8(PB);
}
}
// SetupAccelerator
const s8 *read_ptr = (s8*)GetARAMPointer(PB.CurAddr);
if (PB.RemLength < (u32)rem_samples)
{
// finish-up loop
for (u32 i = 0; i < PB.RemLength; i++)
*_Buffer++ = (s8)(*read_ptr++) << 8;
rem_samples -= PB.RemLength;
goto reached_end;
}
// main render loop
for (u32 i = 0; i < rem_samples; i++)
*_Buffer++ = (s8)(*read_ptr++) << 8;
PB.RemLength -= rem_samples;
if (PB.RemLength == 0)
PB.ReachedEnd = 1;
PB.CurAddr += rem_samples;
}
template <typename T>
void PrintObject(const T &Obj)
{
std::stringstream ss;
u8 *o = (u8 *)&Obj;
// If this miscompiles, adjust the size of
// ZeldaVoicePB to 0x180 bytes (0xc0 shorts).
static_assert(sizeof(ZeldaVoicePB) == 0x180, "ZeldaVoicePB incorrectly defined.");
ss << std::hex;
for (size_t i = 0; i < sizeof(T); i++)
{
if ((i & 1) == 0)
ss << ' ';
ss.width(2);
ss.fill('0');
ss << Common::swap16(o[i]);
}
DEBUG_LOG(DSPHLE, "AFC PB:%s", ss.str().c_str());
}
void ZeldaUCode::RenderVoice_AFC(ZeldaVoicePB &PB, s16 *_Buffer, int _Size)
{
// TODO: Compare mono, stereo and surround samples
#if defined DEBUG || defined DEBUGFAST
PrintObject(PB);
#endif
int _RealSize = SizeForResampling(PB, _Size);
// initialize "decoder" if the sample is played the first time
if (PB.NeedsReset != 0)
{
// This is 0717_ReadOutPBStuff
// increment 4fb
// zelda:
// perhaps init or "has played before"
PB.CurBlock = 0x00;
PB.YN2 = 0x00; // history1
PB.YN1 = 0x00; // history2
// Length in samples.
PB.RemLength = PB.Length;
// Copy ARAM addr from r to rw area.
PB.CurAddr = PB.StartAddr;
PB.ReachedEnd = 0;
PB.CurSampleFrac = 0;
for (int i = 0; i < 4; i++)
PB.ResamplerOldData[i] = 0;
}
if (PB.KeyOff != 0) // 0747 early out... i dunno if this can happen because we filter it above
{
for (int i = 0; i < _RealSize; i++)
*_Buffer++ = 0;
return;
}
// Round upwards how many samples we need to copy, 0759
// u32 frac = NumberOfSamples & 0xF;
// NumberOfSamples = (NumberOfSamples + 0xf) >> 4; // i think the lower 4 are the fraction
const u8 *source;
u32 ram_mask = 1024 * 1024 * 16 - 1;
if (IsDMAVersion())
{
source = Memory::GetPointer(m_dma_base_addr);
ram_mask = 1024 * 1024 * 64 - 1;
}
else
{
source = DSP::GetARAMPtr();
}
int sampleCount = 0; // must be above restart.
restart:
if (PB.ReachedEnd)
{
PB.ReachedEnd = 0;
if ((PB.RepeatMode == 0) || (PB.StopOnSilence != 0))
{
PB.KeyOff = 1;
PB.RemLength = 0;
PB.CurAddr = PB.StartAddr + PB.RestartPos + PB.Length;
while (sampleCount < _RealSize)
_Buffer[sampleCount++] = 0;
return;
}
else
{
//AFC looping
// The loop start pos is incorrect? (Fixed?), so samples will loop a bit wrong.
// this fixes the intro music in ZTP.
PB.RestartPos = PB.LoopStartPos;
PB.RemLength = PB.Length - PB.RestartPos;
// see DSP_UC_Zelda.txt line 2817
PB.CurAddr = ((((((PB.LoopStartPos >> 4) & 0xffff0000)*PB.Format)<<16)+
(((PB.LoopStartPos >> 4) & 0xffff)*PB.Format))+PB.StartAddr) & 0xffffffff;
// Hmm, this shouldn't be reversed .. or should it? Is it different between versions of the ucode?
// -> it has to be reversed in ZTP, otherwise intro music is broken...
PB.YN1 = PB.LoopYN2;
PB.YN2 = PB.LoopYN1;
}
}
short outbuf[16] = {0};
u16 prev_yn1 = PB.YN1;
u16 prev_yn2 = PB.YN2;
u32 prev_addr = PB.CurAddr;
// Prefill the decode buffer.
AFCdecodebuffer(m_afc_coef_table, (char*)(source + (PB.CurAddr & ram_mask)), outbuf, (short*)&PB.YN2, (short*)&PB.YN1, PB.Format);
PB.CurAddr += PB.Format; // 9 or 5
u32 SamplePosition = PB.Length - PB.RemLength;
while (sampleCount < _RealSize)
{
_Buffer[sampleCount] = outbuf[SamplePosition & 15];
sampleCount++;
SamplePosition++;
PB.RemLength--;
if (PB.RemLength == 0)
{
PB.ReachedEnd = 1;
goto restart;
}
// Need new samples!
if ((SamplePosition & 15) == 0)
{
prev_yn1 = PB.YN1;
prev_yn2 = PB.YN2;
prev_addr = PB.CurAddr;
AFCdecodebuffer(m_afc_coef_table, (char*)(source + (PB.CurAddr & ram_mask)), outbuf, (short*)&PB.YN2, (short*)&PB.YN1, PB.Format);
PB.CurAddr += PB.Format; // 9 or 5
}
}
// Here we should back off to the previous addr/yn1/yn2, since we didn't consume the full last block.
// We'll re-decode it the next time around.
PB.YN2 = prev_yn2;
PB.YN1 = prev_yn1;
PB.CurAddr = prev_addr;
PB.NeedsReset = 0;
// PB.CurBlock = 0x10 - (PB.LoopStartPos & 0xf);
// write back
// NumberOfSamples = (NumberOfSamples << 4) | frac; // missing fraction
// i think pTest[0x3a] and pTest[0x3b] got an update after you have decoded some samples...
// just decrement them with the number of samples you have played
// and increase the ARAM Offset in pTest[0x38], pTest[0x39]
// end of block (Zelda 03b2)
}
void Decoder21_ReadAudio(ZeldaVoicePB &PB, int size, s16 *_Buffer);
// Researching what's actually inside the mysterious 0x21 case
// 0x21 seems to really just be reading raw 16-bit audio from RAM (not ARAM).
// The rules seem to be quite different, though.
// It's used for streaming, not for one-shot or looped sample playback.
void ZeldaUCode::RenderVoice_Raw(ZeldaVoicePB &PB, s16 *_Buffer, int _Size)
{
// Decoder0x21 starts here.
u32 _RealSize = SizeForResampling(PB, _Size);
// Decoder0x21Core starts here.
u32 AX0 = _RealSize;
// ERROR_LOG(DSPHLE, "0x21 volume mode: %i , stop: %i ", PB.VolumeMode, PB.StopOnSilence);
// The PB.StopOnSilence check is a hack, we should check the buffers and enter this
// only when the buffer is completely 0 (i.e. when the music has finished fading out)
if (PB.StopOnSilence || PB.RemLength < (u32)_RealSize)
{
WARN_LOG(DSPHLE, "Raw: END");
// Let's ignore this entire case since it doesn't seem to happen
// in Zelda, since Length is set to 0xF0000000
// blah
// blah
// readaudio
// blah
PB.RemLength = 0;
PB.KeyOff = 1;
}
PB.RemLength -= _RealSize;
u64 ACC0 = (u32)(PB.raw[0x8a ^ 1] << 16); // 0x8a 0ad5, yes it loads a, not b
u64 ACC1 = (u32)(PB.raw[0x34 ^ 1] << 16); // 0x34
// ERROR_LOG(DSPHLE, "%08x %08x", (u32)ACC0, (u32)ACC1);
ACC0 -= ACC1;
PB.Unk36[0] = (u16)(ACC0 >> 16);
ACC0 -= AX0 << 16;
if ((s64)ACC0 < 0)
{
// ERROR_LOG(DSPHLE, "Raw loop: ReadAudio size = %04x 34:%04x %08x", PB.Unk36[0], PB.raw[0x34 ^ 1], (int)ACC0);
Decoder21_ReadAudio(PB, PB.Unk36[0], _Buffer);
ACC0 = -(s64)ACC0;
_Buffer += PB.Unk36[0];
PB.raw[0x34 ^ 1] = 0;
PB.StartAddr = PB.LoopStartPos;
Decoder21_ReadAudio(PB, (int)(ACC0 >> 16), _Buffer);
return;
}
Decoder21_ReadAudio(PB, _RealSize, _Buffer);
}
void Decoder21_ReadAudio(ZeldaVoicePB &PB, int size, s16* _Buffer)
{
// 0af6
if (!size)
return;
#if 0
// 0afa
u32 AX1 = (PB.RestartPos >> 16) & 1; // PB.raw[0x34], except that it's part of a dword
// 0b00 - Eh, WTF.
u32 ACC0 = PB.StartAddr + ((PB.RestartPos >> 16) << 1) - 2*AX1;
u32 ACC1 = (size << 16) + 0x20000;
// All this trickery, and more, seems to be to align the DMA, which
// we really don't care about. So let's skip it. See the #else.
#else
// ERROR_LOG(DSPHLE, "ReadAudio: %08x %08x", PB.StartAddr, PB.raw[0x34 ^ 1]);
u32 ACC0 = PB.StartAddr + (PB.raw[0x34 ^ 1] << 1);
u32 ACC1 = (size << 16);
#endif
// ACC0 is the address
// ACC1 is the read size
const u16* src = (u16*)Memory::GetPointer(ACC0 & Memory::RAM_MASK);
for (u32 i = 0; i < (ACC1 >> 16); i++)
{
_Buffer[i] = Common::swap16(src[i]);
}
PB.raw[0x34 ^ 1] += size;
}
void ZeldaUCode::RenderAddVoice(ZeldaVoicePB &PB, s32* _LeftBuffer, s32* _RightBuffer, int _Size)
{
if (PB.IsBlank)
{
s32 sample = (s32)(s16)PB.FixedSample;
for (int i = 0; i < _Size; i++)
m_voice_buffer[i] = sample;
goto ContinueWithBlock; // Yes, a goto. Yes, it's evil, but it makes the flow look much more like the DSP code.
}
// XK: Use this to disable MIDI music (GREAT for testing). Also kills some sound FX.
//if (PB.SoundType == 0x0d00)
//{
// PB.NeedsReset = 0;
// return;
//}
// The Resample calls actually don't resample yet.
// ResampleBuffer corresponds to 0x0580 in ZWW ucode.
// VoiceBuffer corresponds to 0x0520.
// First jump table at ZWW: 2a6
switch (PB.Format)
{
case 0x0005: // AFC with extra low bitrate (32:5 compression).
case 0x0009: // AFC with normal bitrate (32:9 compression).
RenderVoice_AFC(PB, m_resample_buffer + 4, _Size);
Resample(PB, _Size, m_resample_buffer + 4, m_voice_buffer, true);
break;
case 0x0008: // PCM8 - normal PCM 8-bit audio. Used in Mario Kart DD + very little in Zelda WW.
RenderVoice_PCM8(PB, m_resample_buffer + 4, _Size);
Resample(PB, _Size, m_resample_buffer + 4, m_voice_buffer, true);
break;
case 0x0010: // PCM16 - normal PCM 16-bit audio.
RenderVoice_PCM16(PB, m_resample_buffer + 4, _Size);
Resample(PB, _Size, m_resample_buffer + 4, m_voice_buffer, true);
break;
case 0x0020:
// Normally, this shouldn't resample, it should just decode directly
// to the output buffer. However, (if we ever see this sound type), we'll
// have to resample anyway since we're running at a different sample rate.
RenderVoice_Raw(PB, m_resample_buffer + 4, _Size);
Resample(PB, _Size, m_resample_buffer + 4, m_voice_buffer, true);
break;
case 0x0021:
// Raw sound from RAM. Important for Zelda WW. Cutscenes use the music
// to let the game know they ended
RenderVoice_Raw(PB, m_resample_buffer + 4, _Size);
Resample(PB, _Size, m_resample_buffer + 4, m_voice_buffer, true);
break;
default:
// Second jump table
// TODO: Cases to find examples of:
// -0x0002
// -0x0003
// -0x0006
// -0x000a
switch (PB.Format)
{
// Synthesized sounds
case 0x0003: WARN_LOG(DSPHLE, "PB Format 0x03 used!");
case 0x0000: // Example: Magic meter filling up in ZWW
RenderSynth_RectWave(PB, m_voice_buffer, _Size);
break;
case 0x0001: // Example: "Denied" sound when trying to pull out a sword indoors in ZWW
RenderSynth_SawWave(PB, m_voice_buffer, _Size);
break;
case 0x0006:
WARN_LOG(DSPHLE, "Synthesizing 0x0006 (constant sound)");
RenderSynth_Constant(PB, m_voice_buffer, _Size);
break;
// These are more "synth" formats - square wave, saw wave etc.
case 0x0002:
WARN_LOG(DSPHLE, "PB Format 0x02 used!");
break;
case 0x0004: // Example: Big Pikmin onion mothership landing/building a bridge in Pikmin
case 0x0007: // Example: "success" SFX in Pikmin 1, Pikmin 2 in a cave, not sure what sound it is.
case 0x000b: // Example: SFX in area selection menu in Pikmin
case 0x000c: // Example: beam of death/yellow force-field in Temple of the Gods, ZWW
RenderSynth_WaveTable(PB, m_voice_buffer, _Size);
break;
default:
// TODO: Implement general decoder here
memset(m_voice_buffer, 0, _Size * sizeof(s32));
ERROR_LOG(DSPHLE, "Unknown MixAddVoice format in zelda %04x", PB.Format);
break;
}
}
ContinueWithBlock:
if (PB.FilterEnable)
{ // 0x04a8
for (int i = 0; i < _Size; i++)
{
// TODO: Apply filter from ZWW: 0c84_FilterBufferInPlace
}
}
for (int i = 0; i < _Size; i++)
{
// TODO?
}
// Apply volume. There are two different modes.
if (PB.VolumeMode != 0)
{
// Complex volume mode. Let's see what we can do.
if (PB.StopOnSilence)
{
PB.raw[0x2b] = PB.raw[0x2a] >> 1;
if (PB.raw[0x2b] == 0)
{
PB.KeyOff = 1;
}
}
short AX0L = PB.raw[0x28] >> 8;
short AX0H = PB.raw[0x28] & 0x7F;
short AX1L = AX0L ^ 0x7F;
short AX1H = AX0H ^ 0x7F;
AX0L = m_misc_table[0x200 + AX0L];
AX0H = m_misc_table[0x200 + AX0H];
AX1L = m_misc_table[0x200 + AX1L];
AX1H = m_misc_table[0x200 + AX1H];
short b00[20];
b00[0] = AX1L * AX1H >> 16;
b00[1] = AX0L * AX1H >> 16;
b00[2] = AX0H * AX1L >> 16;
b00[3] = AX0L * AX0H >> 16;
for (int i = 0; i < 4; i++)
{
b00[i + 4] = (s16)b00[i] * (s16)PB.raw[0x2a] >> 16;
}
int prod = ((s16)PB.raw[0x2a] * (s16)PB.raw[0x29] * 2) >> 16;
for (int i = 0; i < 4; i++)
{
b00[i + 8] = (s16)b00[i + 4] * prod;
}
// ZWW 0d34
int diff = (s16)PB.raw[0x2b] - (s16)PB.raw[0x2a];
PB.raw[0x2a] = PB.raw[0x2b];
for (int i = 0; i < 4; i++)
{
b00[i + 0xc] = (unsigned short)b00[i] * diff >> 16;
}
for (int i = 0; i < 4; i++)
{
b00[i + 0x10] = (s16)b00[i + 0xc] * PB.raw[0x29];
}
for (int count = 0; count < 8; count++)
{
// The 8 buffers to mix to: 0d00, 0d60, 0f40 0ca0 0e80 0ee0 0c00 0c50
// We just mix to the first two and call it stereo :p
int value = b00[0x4 + count];
//int delta = b00[0xC + count] << 11; // Unused?
int ramp = value << 16;
for (int i = 0; i < _Size; i++)
{
int unmixed_audio = m_voice_buffer[i];
switch (count)
{
case 0: _LeftBuffer[i] += (u64)unmixed_audio * ramp >> 29; break;
case 1: _RightBuffer[i] += (u64)unmixed_audio * ramp >> 29; break;
}
}
}
}
else
{
// ZWW 0355
if (PB.StopOnSilence)
{
int sum = 0;
int addr = 0x0a;
for (int i = 0; i < 6; i++)
{
u16 value = PB.raw[addr];
addr--;
value >>= 1;
PB.raw[addr] = value;
sum += value;
addr += 5;
}
if (sum == 0)
{
PB.KeyOff = 1;
}
}
// Seems there are 6 temporary output buffers.
for (int count = 0; count < 6; count++)
{
int addr = 0x08;
// we'll have to keep a map of buffers I guess...
u16 dest_buffer_address = PB.raw[addr++];
bool mix = dest_buffer_address ? true : false;
u16 vol2 = PB.raw[addr++];
u16 vol1 = PB.raw[addr++];
int delta = (vol2 - vol1) << 11;
addr--;
u32 ramp = vol1 << 16;
if (mix)
{
// 0ca9_RampedMultiplyAddBuffer
for (int i = 0; i < _Size; i++)
{
int value = m_voice_buffer[i];
// TODO - add to buffer specified by dest_buffer_address
switch (count)
{
// These really should be 32.
case 0: _LeftBuffer[i] += (u64)value * ramp >> 29; break;
case 1: _RightBuffer[i] += (u64)value * ramp >> 29; break;
}
if (((i & 1) == 0) && i < 64)
{
ramp += delta;
}
}
if (_Size < 32)
{
ramp += delta * (_Size - 32);
}
}
// Update the PB with the volume actually reached.
PB.raw[addr++] = ramp >> 16;
addr++;
}
}
// 03b2, this is the reason of using PB.NeedsReset. Seems to be necessary for SMG, and maybe other games.
if (PB.IsBlank == 0)
{
PB.NeedsReset = 0;
}
}
void ZeldaUCode::MixAudio()
{
const int BufferSamples = 5 * 16;
// Final mix buffers
memset(m_left_buffer, 0, BufferSamples * sizeof(s32));
memset(m_right_buffer, 0, BufferSamples * sizeof(s32));
// For each PB...
for (u32 i = 0; i < m_num_voices; i++)
{
if (!IsLightVersion())
{
u32 flags = m_sync_flags[(i >> 4) & 0xF];
if (!(flags & 1 << (15 - (i & 0xF))))
continue;
}
ZeldaVoicePB pb;
ReadVoicePB(m_voice_pbs_addr + (i * 0x180), pb);
if (pb.Status == 0)
continue;
if (pb.KeyOff != 0)
continue;
RenderAddVoice(pb, m_left_buffer, m_right_buffer, BufferSamples);
WritebackVoicePB(m_voice_pbs_addr + (i * 0x180), pb);
}
// Post processing, final conversion.
s16* left_buffer = (s16*)HLEMemory_Get_Pointer(m_left_buffers_addr);
s16* right_buffer = (s16*)HLEMemory_Get_Pointer(m_right_buffers_addr);
left_buffer += m_current_buffer * BufferSamples;
right_buffer += m_current_buffer * BufferSamples;
for (int i = 0; i < BufferSamples; i++)
{
s32 left = m_left_buffer[i];
s32 right = m_right_buffer[i];
MathUtil::Clamp(&left, -32768, 32767);
left_buffer[i] = Common::swap16((short)left);
MathUtil::Clamp(&right, -32768, 32767);
right_buffer[i] = Common::swap16((short)right);
}
}