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FifoPlayer.cpp
574 lines (470 loc) · 14.3 KB
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FifoPlayer.cpp
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// Copyright 2011 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Core/FifoPlayer/FifoPlayer.h"
#include <algorithm>
#include <mutex>
#include "Common/Assert.h"
#include "Common/CommonTypes.h"
#include "Common/MsgHandler.h"
#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "Core/CoreTiming.h"
#include "Core/FifoPlayer/FifoAnalyzer.h"
#include "Core/FifoPlayer/FifoDataFile.h"
#include "Core/HW/CPU.h"
#include "Core/HW/GPFifo.h"
#include "Core/HW/Memmap.h"
#include "Core/HW/ProcessorInterface.h"
#include "Core/HW/SystemTimers.h"
#include "Core/HW/VideoInterface.h"
#include "Core/Host.h"
#include "Core/PowerPC/MMU.h"
#include "Core/PowerPC/PowerPC.h"
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/CommandProcessor.h"
// We need to include TextureDecoder.h for the texMem array.
// TODO: Move texMem somewhere else so this isn't an issue.
#include "VideoCommon/TextureDecoder.h"
bool IsPlayingBackFifologWithBrokenEFBCopies = false;
FifoPlayer::FifoPlayer() : m_Loop{SConfig::GetInstance().bLoopFifoReplay}
{
}
FifoPlayer::~FifoPlayer()
{
}
bool FifoPlayer::Open(const std::string& filename)
{
Close();
m_File = FifoDataFile::Load(filename, false);
if (m_File)
{
FifoAnalyzer::Init();
FifoPlaybackAnalyzer::AnalyzeFrames(m_File.get(), m_FrameInfo);
m_FrameRangeEnd = m_File->GetFrameCount();
}
if (m_FileLoadedCb)
m_FileLoadedCb();
return (m_File != nullptr);
}
void FifoPlayer::Close()
{
m_File.reset();
m_FrameRangeStart = 0;
m_FrameRangeEnd = 0;
}
bool FifoPlayer::IsPlaying() const
{
return GetFile() != nullptr && Core::IsRunning();
}
class FifoPlayer::CPUCore final : public CPUCoreBase
{
public:
explicit CPUCore(FifoPlayer* parent) : m_parent(parent) {}
CPUCore(const CPUCore&) = delete;
~CPUCore() {}
CPUCore& operator=(const CPUCore&) = delete;
void Init() override
{
IsPlayingBackFifologWithBrokenEFBCopies = m_parent->m_File->HasBrokenEFBCopies();
m_parent->m_CurrentFrame = m_parent->m_FrameRangeStart;
m_parent->LoadMemory();
}
void Shutdown() override { IsPlayingBackFifologWithBrokenEFBCopies = false; }
void ClearCache() override
{
// Nothing to clear.
}
void SingleStep() override
{
// NOTE: AdvanceFrame() will get stuck forever in Dual Core because the FIFO
// is disabled by CPU::EnableStepping(true) so the frame never gets displayed.
PanicAlertT("Cannot SingleStep the FIFO. Use Frame Advance instead.");
}
const char* GetName() const override { return "FifoPlayer"; }
void Run() override
{
while (CPU::GetState() == CPU::State::Running)
{
switch (m_parent->AdvanceFrame())
{
case CPU::State::PowerDown:
CPU::Break();
Host_Message(HostMessageID::WMUserStop);
break;
case CPU::State::Stepping:
CPU::Break();
Host_UpdateMainFrame();
break;
case CPU::State::Running:
break;
}
}
}
private:
FifoPlayer* m_parent;
};
CPU::State FifoPlayer::AdvanceFrame()
{
if (m_CurrentFrame >= m_FrameRangeEnd)
{
if (!m_Loop)
return CPU::State::PowerDown;
// If there are zero frames in the range then sleep instead of busy spinning
if (m_FrameRangeStart >= m_FrameRangeEnd)
return CPU::State::Stepping;
// When looping, reload the contents of all the BP/CP/CF registers.
// This ensures that each time the first frame is played back, the state of the
// GPU is the same for each playback loop.
m_CurrentFrame = m_FrameRangeStart;
LoadRegisters();
LoadTextureMemory();
FlushWGP();
}
if (m_FrameWrittenCb)
m_FrameWrittenCb();
if (m_EarlyMemoryUpdates && m_CurrentFrame == m_FrameRangeStart)
WriteAllMemoryUpdates();
WriteFrame(m_File->GetFrame(m_CurrentFrame), m_FrameInfo[m_CurrentFrame]);
++m_CurrentFrame;
return CPU::State::Running;
}
std::unique_ptr<CPUCoreBase> FifoPlayer::GetCPUCore()
{
if (!m_File || m_File->GetFrameCount() == 0)
return nullptr;
return std::make_unique<CPUCore>(this);
}
bool FifoPlayer::IsRunningWithFakeVideoInterfaceUpdates() const
{
if (!m_File || m_File->GetFrameCount() == 0)
{
return false;
}
return m_File->ShouldGenerateFakeVIUpdates();
}
u32 FifoPlayer::GetFrameObjectCount() const
{
if (m_CurrentFrame < m_FrameInfo.size())
{
return (u32)(m_FrameInfo[m_CurrentFrame].objectStarts.size());
}
return 0;
}
void FifoPlayer::SetFrameRangeStart(u32 start)
{
if (m_File)
{
u32 frameCount = m_File->GetFrameCount();
if (start > frameCount)
start = frameCount;
m_FrameRangeStart = start;
if (m_FrameRangeEnd < start)
m_FrameRangeEnd = start;
if (m_CurrentFrame < m_FrameRangeStart)
m_CurrentFrame = m_FrameRangeStart;
}
}
void FifoPlayer::SetFrameRangeEnd(u32 end)
{
if (m_File)
{
u32 frameCount = m_File->GetFrameCount();
if (end > frameCount)
end = frameCount;
m_FrameRangeEnd = end;
if (m_FrameRangeStart > end)
m_FrameRangeStart = end;
if (m_CurrentFrame >= m_FrameRangeEnd)
m_CurrentFrame = m_FrameRangeStart;
}
}
FifoPlayer& FifoPlayer::GetInstance()
{
static FifoPlayer instance;
return instance;
}
void FifoPlayer::WriteFrame(const FifoFrameInfo& frame, const AnalyzedFrameInfo& info)
{
// Core timing information
m_CyclesPerFrame = SystemTimers::GetTicksPerSecond() / VideoInterface::GetTargetRefreshRate();
m_ElapsedCycles = 0;
m_FrameFifoSize = static_cast<u32>(frame.fifoData.size());
// Determine start and end objects
u32 numObjects = (u32)(info.objectStarts.size());
u32 drawStart = std::min(numObjects, m_ObjectRangeStart);
u32 drawEnd = std::min(numObjects - 1, m_ObjectRangeEnd);
u32 position = 0;
u32 memoryUpdate = 0;
// Skip memory updates during frame if true
if (m_EarlyMemoryUpdates)
{
memoryUpdate = (u32)(frame.memoryUpdates.size());
}
if (numObjects > 0)
{
u32 objectNum = 0;
// Write fifo data skipping objects before the draw range
while (objectNum < drawStart)
{
WriteFramePart(position, info.objectStarts[objectNum], memoryUpdate, frame, info);
position = info.objectEnds[objectNum];
++objectNum;
}
// Write objects in draw range
if (objectNum < numObjects && drawStart <= drawEnd)
{
objectNum = drawEnd;
WriteFramePart(position, info.objectEnds[objectNum], memoryUpdate, frame, info);
position = info.objectEnds[objectNum];
++objectNum;
}
// Write fifo data skipping objects after the draw range
while (objectNum < numObjects)
{
WriteFramePart(position, info.objectStarts[objectNum], memoryUpdate, frame, info);
position = info.objectEnds[objectNum];
++objectNum;
}
}
// Write data after the last object
WriteFramePart(position, static_cast<u32>(frame.fifoData.size()), memoryUpdate, frame, info);
FlushWGP();
// Sleep while the GPU is active
while (!IsIdleSet())
{
CoreTiming::Idle();
CoreTiming::Advance();
}
}
void FifoPlayer::WriteFramePart(u32 dataStart, u32 dataEnd, u32& nextMemUpdate,
const FifoFrameInfo& frame, const AnalyzedFrameInfo& info)
{
const u8* const data = frame.fifoData.data();
while (nextMemUpdate < frame.memoryUpdates.size() && dataStart < dataEnd)
{
const MemoryUpdate& memUpdate = info.memoryUpdates[nextMemUpdate];
if (memUpdate.fifoPosition < dataEnd)
{
if (dataStart < memUpdate.fifoPosition)
{
WriteFifo(data, dataStart, memUpdate.fifoPosition);
dataStart = memUpdate.fifoPosition;
}
WriteMemory(memUpdate);
++nextMemUpdate;
}
else
{
WriteFifo(data, dataStart, dataEnd);
dataStart = dataEnd;
}
}
if (dataStart < dataEnd)
WriteFifo(data, dataStart, dataEnd);
}
void FifoPlayer::WriteAllMemoryUpdates()
{
ASSERT(m_File);
for (u32 frameNum = 0; frameNum < m_File->GetFrameCount(); ++frameNum)
{
const FifoFrameInfo& frame = m_File->GetFrame(frameNum);
for (auto& update : frame.memoryUpdates)
{
WriteMemory(update);
}
}
}
void FifoPlayer::WriteMemory(const MemoryUpdate& memUpdate)
{
u8* mem = nullptr;
if (memUpdate.address & 0x10000000)
mem = &Memory::m_pEXRAM[memUpdate.address & Memory::EXRAM_MASK];
else
mem = &Memory::m_pRAM[memUpdate.address & Memory::RAM_MASK];
std::copy(memUpdate.data.begin(), memUpdate.data.end(), mem);
}
void FifoPlayer::WriteFifo(const u8* data, u32 start, u32 end)
{
u32 written = start;
u32 lastBurstEnd = end - 1;
// Write up to 256 bytes at a time
while (written < end)
{
while (IsHighWatermarkSet())
{
CoreTiming::Idle();
CoreTiming::Advance();
}
u32 burstEnd = std::min(written + 255, lastBurstEnd);
while (written < burstEnd)
GPFifo::FastWrite8(data[written++]);
GPFifo::Write8(data[written++]);
// Advance core timing
u32 elapsedCycles = u32(((u64)written * m_CyclesPerFrame) / m_FrameFifoSize);
u32 cyclesUsed = elapsedCycles - m_ElapsedCycles;
m_ElapsedCycles = elapsedCycles;
PowerPC::ppcState.downcount -= cyclesUsed;
CoreTiming::Advance();
}
}
void FifoPlayer::SetupFifo()
{
WriteCP(CommandProcessor::CTRL_REGISTER, 0); // disable read, BP, interrupts
WriteCP(CommandProcessor::CLEAR_REGISTER, 7); // clear overflow, underflow, metrics
const FifoFrameInfo& frame = m_File->GetFrame(m_CurrentFrame);
// Set fifo bounds
WriteCP(CommandProcessor::FIFO_BASE_LO, frame.fifoStart);
WriteCP(CommandProcessor::FIFO_BASE_HI, frame.fifoStart >> 16);
WriteCP(CommandProcessor::FIFO_END_LO, frame.fifoEnd);
WriteCP(CommandProcessor::FIFO_END_HI, frame.fifoEnd >> 16);
// Set watermarks, high at 75%, low at 0%
u32 hi_watermark = (frame.fifoEnd - frame.fifoStart) * 3 / 4;
WriteCP(CommandProcessor::FIFO_HI_WATERMARK_LO, hi_watermark);
WriteCP(CommandProcessor::FIFO_HI_WATERMARK_HI, hi_watermark >> 16);
WriteCP(CommandProcessor::FIFO_LO_WATERMARK_LO, 0);
WriteCP(CommandProcessor::FIFO_LO_WATERMARK_HI, 0);
// Set R/W pointers to fifo start
WriteCP(CommandProcessor::FIFO_RW_DISTANCE_LO, 0);
WriteCP(CommandProcessor::FIFO_RW_DISTANCE_HI, 0);
WriteCP(CommandProcessor::FIFO_WRITE_POINTER_LO, frame.fifoStart);
WriteCP(CommandProcessor::FIFO_WRITE_POINTER_HI, frame.fifoStart >> 16);
WriteCP(CommandProcessor::FIFO_READ_POINTER_LO, frame.fifoStart);
WriteCP(CommandProcessor::FIFO_READ_POINTER_HI, frame.fifoStart >> 16);
// Set fifo bounds
WritePI(ProcessorInterface::PI_FIFO_BASE, frame.fifoStart);
WritePI(ProcessorInterface::PI_FIFO_END, frame.fifoEnd);
// Set write pointer
WritePI(ProcessorInterface::PI_FIFO_WPTR, frame.fifoStart);
FlushWGP();
WritePI(ProcessorInterface::PI_FIFO_WPTR, frame.fifoStart);
WriteCP(CommandProcessor::CTRL_REGISTER, 17); // enable read & GP link
}
void FifoPlayer::LoadMemory()
{
UReg_MSR newMSR;
newMSR.DR = 1;
newMSR.IR = 1;
MSR.Hex = newMSR.Hex;
PowerPC::ppcState.spr[SPR_IBAT0U] = 0x80001fff;
PowerPC::ppcState.spr[SPR_IBAT0L] = 0x00000002;
PowerPC::ppcState.spr[SPR_DBAT0U] = 0x80001fff;
PowerPC::ppcState.spr[SPR_DBAT0L] = 0x00000002;
PowerPC::ppcState.spr[SPR_DBAT1U] = 0xc0001fff;
PowerPC::ppcState.spr[SPR_DBAT1L] = 0x0000002a;
PowerPC::DBATUpdated();
PowerPC::IBATUpdated();
SetupFifo();
LoadRegisters();
LoadTextureMemory();
FlushWGP();
}
void FifoPlayer::LoadRegisters()
{
const u32* regs = m_File->GetBPMem();
for (int i = 0; i < FifoDataFile::BP_MEM_SIZE; ++i)
{
if (ShouldLoadBP(i))
LoadBPReg(i, regs[i]);
}
regs = m_File->GetCPMem();
LoadCPReg(0x30, regs[0x30]);
LoadCPReg(0x40, regs[0x40]);
LoadCPReg(0x50, regs[0x50]);
LoadCPReg(0x60, regs[0x60]);
for (int i = 0; i < 8; ++i)
{
LoadCPReg(0x70 + i, regs[0x70 + i]);
LoadCPReg(0x80 + i, regs[0x80 + i]);
LoadCPReg(0x90 + i, regs[0x90 + i]);
}
for (int i = 0; i < 16; ++i)
{
LoadCPReg(0xa0 + i, regs[0xa0 + i]);
LoadCPReg(0xb0 + i, regs[0xb0 + i]);
}
regs = m_File->GetXFMem();
for (int i = 0; i < FifoDataFile::XF_MEM_SIZE; i += 16)
LoadXFMem16(i, ®s[i]);
regs = m_File->GetXFRegs();
for (int i = 0; i < FifoDataFile::XF_REGS_SIZE; ++i)
LoadXFReg(i, regs[i]);
}
void FifoPlayer::LoadTextureMemory()
{
static_assert(static_cast<size_t>(TMEM_SIZE) == static_cast<size_t>(FifoDataFile::TEX_MEM_SIZE),
"TMEM_SIZE matches the size of texture memory in FifoDataFile");
std::memcpy(texMem, m_File->GetTexMem(), FifoDataFile::TEX_MEM_SIZE);
}
void FifoPlayer::WriteCP(u32 address, u16 value)
{
PowerPC::Write_U16(value, 0xCC000000 | address);
}
void FifoPlayer::WritePI(u32 address, u32 value)
{
PowerPC::Write_U32(value, 0xCC003000 | address);
}
void FifoPlayer::FlushWGP()
{
// Send 31 0s through the WGP
for (int i = 0; i < 7; ++i)
GPFifo::Write32(0);
GPFifo::Write16(0);
GPFifo::Write8(0);
GPFifo::ResetGatherPipe();
}
void FifoPlayer::LoadBPReg(u8 reg, u32 value)
{
GPFifo::Write8(0x61); // load BP reg
u32 cmd = (reg << 24) & 0xff000000;
cmd |= (value & 0x00ffffff);
GPFifo::Write32(cmd);
}
void FifoPlayer::LoadCPReg(u8 reg, u32 value)
{
GPFifo::Write8(0x08); // load CP reg
GPFifo::Write8(reg);
GPFifo::Write32(value);
}
void FifoPlayer::LoadXFReg(u16 reg, u32 value)
{
GPFifo::Write8(0x10); // load XF reg
GPFifo::Write32((reg & 0x0fff) | 0x1000); // load 4 bytes into reg
GPFifo::Write32(value);
}
void FifoPlayer::LoadXFMem16(u16 address, const u32* data)
{
// Loads 16 * 4 bytes in xf memory starting at address
GPFifo::Write8(0x10); // load XF reg
GPFifo::Write32(0x000f0000 | (address & 0xffff)); // load 16 * 4 bytes into address
for (int i = 0; i < 16; ++i)
GPFifo::Write32(data[i]);
}
bool FifoPlayer::ShouldLoadBP(u8 address)
{
switch (address)
{
case BPMEM_SETDRAWDONE:
case BPMEM_PE_TOKEN_ID:
case BPMEM_PE_TOKEN_INT_ID:
case BPMEM_TRIGGER_EFB_COPY:
case BPMEM_LOADTLUT1:
case BPMEM_PRELOAD_MODE:
case BPMEM_PERF1:
return false;
default:
return true;
}
}
bool FifoPlayer::IsIdleSet()
{
CommandProcessor::UCPStatusReg status =
PowerPC::Read_U16(0xCC000000 | CommandProcessor::STATUS_REGISTER);
return status.CommandIdle;
}
bool FifoPlayer::IsHighWatermarkSet()
{
CommandProcessor::UCPStatusReg status =
PowerPC::Read_U16(0xCC000000 | CommandProcessor::STATUS_REGISTER);
return status.OverflowHiWatermark;
}