dolphin/Source/Core/VideoCommon/PixelEngine.cpp

327 lines
8.1 KiB
C++
Raw Normal View History

// Copyright 2008 Dolphin Emulator Project
2015-05-17 23:08:10 +00:00
// Licensed under GPLv2+
// Refer to the license.txt file included.
2015-05-01 19:42:50 +00:00
// http://www.nvidia.com/object/General_FAQ.html#t6 !!!!!
#include <atomic>
#include "Common/Atomic.h"
#include "Common/ChunkFile.h"
#include "Common/CommonTypes.h"
#include "Core/ConfigManager.h"
2015-06-06 05:20:51 +00:00
#include "Core/Core.h"
#include "Core/CoreTiming.h"
#include "Core/State.h"
#include "Core/HW/MMIO.h"
#include "Core/HW/ProcessorInterface.h"
2014-09-17 01:04:37 +00:00
#include "VideoCommon/BoundingBox.h"
#include "VideoCommon/CommandProcessor.h"
#include "VideoCommon/Fifo.h"
#include "VideoCommon/PixelEngine.h"
#include "VideoCommon/RenderBase.h"
#include "VideoCommon/VideoCommon.h"
namespace PixelEngine
{
union UPEZConfReg
{
u16 Hex;
struct
{
u16 ZCompEnable : 1; // Z Comparator Enable
u16 Function : 3;
u16 ZUpdEnable : 1;
u16 : 11;
};
};
union UPEAlphaConfReg
{
u16 Hex;
struct
{
u16 BMMath : 1; // GX_BM_BLEND || GX_BM_SUBSTRACT
u16 BMLogic : 1; // GX_BM_LOGIC
u16 Dither : 1;
u16 ColorUpdEnable : 1;
u16 AlphaUpdEnable : 1;
u16 DstFactor : 3;
u16 SrcFactor : 3;
u16 Substract : 1; // Additive mode by default
u16 BlendOperator : 4;
};
};
union UPEDstAlphaConfReg
{
u16 Hex;
struct
{
u16 DstAlpha : 8;
u16 Enable : 1;
u16 : 7;
};
};
union UPEAlphaModeConfReg
{
u16 Hex;
struct
{
u16 Threshold : 8;
u16 CompareMode : 8;
};
};
// fifo Control Register
union UPECtrlReg
{
struct
{
u16 PETokenEnable : 1;
u16 PEFinishEnable : 1;
u16 PEToken : 1; // write only
u16 PEFinish : 1; // write only
u16 : 12;
};
u16 Hex;
UPECtrlReg() {Hex = 0; }
UPECtrlReg(u16 _hex) {Hex = _hex; }
};
// STATE_TO_SAVE
static UPEZConfReg m_ZConf;
static UPEAlphaConfReg m_AlphaConf;
static UPEDstAlphaConfReg m_DstAlphaConf;
static UPEAlphaModeConfReg m_AlphaModeConf;
static UPEAlphaReadReg m_AlphaRead;
static UPECtrlReg m_Control;
//static u16 m_Token; // token value most recently encountered
static std::atomic<u32> s_signal_token_interrupt;
static std::atomic<u32> s_signal_finish_interrupt;
static int et_SetTokenOnMainThread;
static int et_SetFinishOnMainThread;
enum
{
2014-02-09 21:03:16 +00:00
INT_CAUSE_PE_TOKEN = 0x200, // GP Token
INT_CAUSE_PE_FINISH = 0x400, // GP Finished
};
void DoState(PointerWrap &p)
{
p.Do(m_ZConf);
p.Do(m_AlphaConf);
p.Do(m_DstAlphaConf);
p.Do(m_AlphaModeConf);
p.Do(m_AlphaRead);
p.DoPOD(m_Control);
p.Do(s_signal_token_interrupt);
p.Do(s_signal_finish_interrupt);
}
void UpdateInterrupts();
void UpdateTokenInterrupt(bool active);
void UpdateFinishInterrupt(bool active);
void SetToken_OnMainThread(u64 userdata, int cyclesLate);
void SetFinish_OnMainThread(u64 userdata, int cyclesLate);
void Init()
{
m_Control.Hex = 0;
2012-01-02 10:20:22 +00:00
m_ZConf.Hex = 0;
m_AlphaConf.Hex = 0;
m_DstAlphaConf.Hex = 0;
m_AlphaModeConf.Hex = 0;
m_AlphaRead.Hex = 0;
s_signal_token_interrupt.store(0);
s_signal_finish_interrupt.store(0);
et_SetTokenOnMainThread = CoreTiming::RegisterEvent("SetToken", SetToken_OnMainThread);
et_SetFinishOnMainThread = CoreTiming::RegisterEvent("SetFinish", SetFinish_OnMainThread);
}
void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
{
// Directly mapped registers.
struct {
u32 addr;
u16* ptr;
} directly_mapped_vars[] = {
{ PE_ZCONF, &m_ZConf.Hex },
{ PE_ALPHACONF, &m_AlphaConf.Hex },
{ PE_DSTALPHACONF, &m_DstAlphaConf.Hex },
{ PE_ALPHAMODE, &m_AlphaModeConf.Hex },
{ PE_ALPHAREAD, &m_AlphaRead.Hex },
};
for (auto& mapped_var : directly_mapped_vars)
{
mmio->Register(base | mapped_var.addr,
MMIO::DirectRead<u16>(mapped_var.ptr),
MMIO::DirectWrite<u16>(mapped_var.ptr)
);
}
// Performance queries registers: read only, need to call the video backend
// to get the results.
struct {
u32 addr;
PerfQueryType pqtype;
} pq_regs[] = {
{ PE_PERF_ZCOMP_INPUT_ZCOMPLOC_L, PQ_ZCOMP_INPUT_ZCOMPLOC },
{ PE_PERF_ZCOMP_OUTPUT_ZCOMPLOC_L, PQ_ZCOMP_OUTPUT_ZCOMPLOC },
{ PE_PERF_ZCOMP_INPUT_L, PQ_ZCOMP_INPUT },
{ PE_PERF_ZCOMP_OUTPUT_L, PQ_ZCOMP_OUTPUT },
{ PE_PERF_BLEND_INPUT_L, PQ_BLEND_INPUT },
{ PE_PERF_EFB_COPY_CLOCKS_L, PQ_EFB_COPY_CLOCKS },
};
for (auto& pq_reg : pq_regs)
{
mmio->Register(base | pq_reg.addr,
MMIO::ComplexRead<u16>([pq_reg](u32) {
return g_video_backend->Video_GetQueryResult(pq_reg.pqtype) & 0xFFFF;
}),
MMIO::InvalidWrite<u16>()
);
mmio->Register(base | (pq_reg.addr + 2),
MMIO::ComplexRead<u16>([pq_reg](u32) {
return g_video_backend->Video_GetQueryResult(pq_reg.pqtype) >> 16;
}),
MMIO::InvalidWrite<u16>()
);
}
// Control register
mmio->Register(base | PE_CTRL_REGISTER,
MMIO::DirectRead<u16>(&m_Control.Hex),
MMIO::ComplexWrite<u16>([](u32, u16 val) {
UPECtrlReg tmpCtrl(val);
if (tmpCtrl.PEToken)
s_signal_token_interrupt.store(0);
if (tmpCtrl.PEFinish)
s_signal_finish_interrupt.store(0);
m_Control.PETokenEnable = tmpCtrl.PETokenEnable;
m_Control.PEFinishEnable = tmpCtrl.PEFinishEnable;
m_Control.PEToken = 0; // this flag is write only
m_Control.PEFinish = 0; // this flag is write only
DEBUG_LOG(PIXELENGINE, "(w16) CTRL_REGISTER: 0x%04x", val);
UpdateInterrupts();
})
);
// Token register, readonly.
mmio->Register(base | PE_TOKEN_REG,
MMIO::DirectRead<u16>(&CommandProcessor::fifo.PEToken),
MMIO::InvalidWrite<u16>()
);
// BBOX registers, readonly and need to update a flag.
for (int i = 0; i < 4; ++i)
{
mmio->Register(base | (PE_BBOX_LEFT + 2 * i),
MMIO::ComplexRead<u16>([i](u32) {
BoundingBox::active = false;
return g_video_backend->Video_GetBoundingBox(i);
}),
MMIO::InvalidWrite<u16>()
);
}
}
void UpdateInterrupts()
{
// check if there is a token-interrupt
UpdateTokenInterrupt((s_signal_token_interrupt.load() & m_Control.PETokenEnable) != 0);
// check if there is a finish-interrupt
UpdateFinishInterrupt((s_signal_finish_interrupt.load() & m_Control.PEFinishEnable) != 0);
}
void UpdateTokenInterrupt(bool active)
{
ProcessorInterface::SetInterrupt(INT_CAUSE_PE_TOKEN, active);
}
void UpdateFinishInterrupt(bool active)
{
ProcessorInterface::SetInterrupt(INT_CAUSE_PE_FINISH, active);
}
// TODO(mb2): Refactor SetTokenINT_OnMainThread(u64 userdata, int cyclesLate).
// Think about the right order between tokenVal and tokenINT... one day maybe.
// Cleanup++
// Called only if BPMEM_PE_TOKEN_INT_ID is ack by GP
void SetToken_OnMainThread(u64 userdata, int cyclesLate)
{
// XXX: No 16-bit atomic store available, so cheat and use 32-bit.
// That's what we've always done. We're counting on fifo.PEToken to be
// 4-byte padded.
Common::AtomicStore(*(volatile u32*)&CommandProcessor::fifo.PEToken, userdata & 0xffff);
INFO_LOG(PIXELENGINE, "VIDEO Backend raises INT_CAUSE_PE_TOKEN (btw, token: %04x)", CommandProcessor::fifo.PEToken);
if (userdata >> 16)
{
s_signal_token_interrupt.store(1);
UpdateInterrupts();
}
CommandProcessor::SetInterruptTokenWaiting(false);
}
void SetFinish_OnMainThread(u64 userdata, int cyclesLate)
{
s_signal_finish_interrupt.store(1);
UpdateInterrupts();
CommandProcessor::SetInterruptFinishWaiting(false);
2015-06-06 05:20:51 +00:00
Core::FrameUpdateOnCPUThread();
}
// SetToken
// THIS IS EXECUTED FROM VIDEO THREAD
void SetToken(const u16 _token, const int _bSetTokenAcknowledge)
{
if (_bSetTokenAcknowledge) // set token INT
{
s_signal_token_interrupt.store(1);
}
CommandProcessor::SetInterruptTokenWaiting(true);
if (!SConfig::GetInstance().bCPUThread || g_use_deterministic_gpu_thread)
CoreTiming::ScheduleEvent(0, et_SetTokenOnMainThread, _token | (_bSetTokenAcknowledge << 16));
else
CoreTiming::ScheduleEvent_Threadsafe(0, et_SetTokenOnMainThread, _token | (_bSetTokenAcknowledge << 16));
}
// SetFinish
// THIS IS EXECUTED FROM VIDEO THREAD (BPStructs.cpp) when a new frame has been drawn
void SetFinish()
{
CommandProcessor::SetInterruptFinishWaiting(true);
if (!SConfig::GetInstance().bCPUThread || g_use_deterministic_gpu_thread)
CoreTiming::ScheduleEvent(0, et_SetFinishOnMainThread, 0);
else
CoreTiming::ScheduleEvent_Threadsafe(0, et_SetFinishOnMainThread, 0);
INFO_LOG(PIXELENGINE, "VIDEO Set Finish");
}
UPEAlphaReadReg GetAlphaReadMode()
{
return m_AlphaRead;
}
} // end of namespace PixelEngine