dolphin/Source/Core/VideoCommon/Src/PixelEngine.cpp

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// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// http://developer.nvidia.com/object/General_FAQ.html#t6 !!!!!
#include "Common.h"
#include "VideoCommon.h"
#include "ChunkFile.h"
#include "Atomic.h"
#include "PixelEngine.h"
#include "CommandProcessor.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 bool g_bSignalTokenInterrupt;
static bool g_bSignalFinishInterrupt;
static int et_SetTokenOnMainThread;
static int et_SetFinishOnMainThread;
volatile bool interruptSetToken = false;
volatile bool interruptSetFinish = false;
u16 bbox[4];
bool bbox_active;
enum
{
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.Do(m_Control);
p.Do(CommandProcessor::fifo.PEToken);
p.Do(g_bSignalTokenInterrupt);
p.Do(g_bSignalFinishInterrupt);
p.Do(bbox);
p.Do(bbox_active);
}
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;
et_SetTokenOnMainThread = g_VideoInitialize.pRegisterEvent("SetToken", SetToken_OnMainThread);
et_SetFinishOnMainThread = g_VideoInitialize.pRegisterEvent("SetFinish", SetFinish_OnMainThread);
bbox[0] = 0x80;
bbox[1] = 0xA0;
bbox[2] = 0x80;
bbox[3] = 0xA0;
bbox_active = false;
}
void Read16(u16& _uReturnValue, const u32 _iAddress)
{
DEBUG_LOG(PIXELENGINE, "(r16) 0x%08x", _iAddress);
CommandProcessor::ProcessFifoEvents();
switch (_iAddress & 0xFFF)
{
// CPU Direct Access EFB Raster State Config
case PE_ZCONF:
_uReturnValue = m_ZConf.Hex;
INFO_LOG(PIXELENGINE, "(r16) ZCONF");
break;
case PE_ALPHACONF:
// Most games read this early. no idea why.
_uReturnValue = m_AlphaConf.Hex;
INFO_LOG(PIXELENGINE, "(r16) ALPHACONF");
break;
case PE_DSTALPHACONF:
_uReturnValue = m_DstAlphaConf.Hex;
INFO_LOG(PIXELENGINE, "(r16) DSTALPHACONF");
break;
case PE_ALPHAMODE:
_uReturnValue = m_AlphaModeConf.Hex;
INFO_LOG(PIXELENGINE, "(r16) ALPHAMODE");
break;
case PE_ALPHAREAD:
_uReturnValue = m_AlphaRead.Hex;
WARN_LOG(PIXELENGINE, "(r16) ALPHAREAD");
break;
case PE_CTRL_REGISTER:
_uReturnValue = m_Control.Hex;
INFO_LOG(PIXELENGINE, "(r16) CTRL_REGISTER : %04x", _uReturnValue);
break;
case PE_TOKEN_REG:
_uReturnValue = CommandProcessor::fifo.PEToken;
INFO_LOG(PIXELENGINE, "(r16) TOKEN_REG : %04x", _uReturnValue);
break;
// The return values for these BBOX registers need to be gotten from the bounding box of the object.
// See http://code.google.com/p/dolphin-emu/issues/detail?id=360#c74 for more details.
// 0x80, 0xa0, 0x80, 0xa0 makes Paper Mario happy.
case PE_BBOX_LEFT: _uReturnValue = bbox[0]; INFO_LOG(PIXELENGINE, "R: BBOX_LEFT = %i", bbox[0]); bbox_active = false; break;
case PE_BBOX_RIGHT: _uReturnValue = bbox[1]; INFO_LOG(PIXELENGINE, "R: BBOX_RIGHT = %i", bbox[1]); bbox_active = false; break;
case PE_BBOX_TOP: _uReturnValue = bbox[2]; INFO_LOG(PIXELENGINE, "R: BBOX_TOP = %i", bbox[2]); bbox_active = false; break;
case PE_BBOX_BOTTOM: _uReturnValue = bbox[3]; INFO_LOG(PIXELENGINE, "R: BBOX_BOTTOM = %i", bbox[3]); bbox_active = false; break;
case PE_PERF_0L:
case PE_PERF_0H:
case PE_PERF_1L:
case PE_PERF_1H:
case PE_PERF_2L:
case PE_PERF_2H:
case PE_PERF_3L:
case PE_PERF_3H:
case PE_PERF_4L:
case PE_PERF_4H:
case PE_PERF_5L:
case PE_PERF_5H:
INFO_LOG(PIXELENGINE, "(r16) perf counter @ %08x", _iAddress);
break;
default:
INFO_LOG(PIXELENGINE, "(r16) unknown @ %08x", _iAddress);
_uReturnValue = 1;
break;
}
}
void Write16(const u16 _iValue, const u32 _iAddress)
{
switch (_iAddress & 0xFFF)
{
// CPU Direct Access EFB Raster State Config
case PE_ZCONF:
m_ZConf.Hex = _iValue;
INFO_LOG(PIXELENGINE, "(w16) ZCONF: %02x", _iValue);
break;
case PE_ALPHACONF:
m_AlphaConf.Hex = _iValue;
INFO_LOG(PIXELENGINE, "(w16) ALPHACONF: %02x", _iValue);
break;
case PE_DSTALPHACONF:
m_DstAlphaConf.Hex = _iValue;
INFO_LOG(PIXELENGINE, "(w16) DSTALPHACONF: %02x", _iValue);
break;
case PE_ALPHAMODE:
m_AlphaModeConf.Hex = _iValue;
INFO_LOG(PIXELENGINE, "(w16) ALPHAMODE: %02x", _iValue);
break;
case PE_ALPHAREAD:
m_AlphaRead.Hex = _iValue;
INFO_LOG(PIXELENGINE, "(w16) ALPHAREAD: %02x", _iValue);
break;
case PE_CTRL_REGISTER:
{
UPECtrlReg tmpCtrl(_iValue);
if (tmpCtrl.PEToken) g_bSignalTokenInterrupt = false;
if (tmpCtrl.PEFinish) g_bSignalFinishInterrupt = false;
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", _iValue);
UpdateInterrupts();
}
break;
case PE_TOKEN_REG:
//LOG(PIXELENGINE,"WEIRD: program wrote token: %i",_iValue);
PanicAlert("(w16) WTF? PowerPC program wrote token: %i", _iValue);
//only the gx pipeline is supposed to be able to write here
//g_token = _iValue;
break;
default:
WARN_LOG(PIXELENGINE, "(w16) unknown %04x @ %08x", _iValue, _iAddress);
break;
}
CommandProcessor::ProcessFifoEvents();
}
void Write32(const u32 _iValue, const u32 _iAddress)
{
WARN_LOG(PIXELENGINE, "(w32) 0x%08x @ 0x%08x IGNORING...",_iValue,_iAddress);
}
bool AllowIdleSkipping()
{
return !g_VideoInitialize.bOnThread || (!m_Control.PETokenEnable && !m_Control.PEFinishEnable);
}
void UpdateInterrupts()
{
// check if there is a token-interrupt
UpdateTokenInterrupt((g_bSignalTokenInterrupt & m_Control.PETokenEnable));
// check if there is a finish-interrupt
UpdateFinishInterrupt((g_bSignalFinishInterrupt & m_Control.PEFinishEnable));
}
void UpdateTokenInterrupt(bool active)
{
if(interruptSetToken != active)
{
g_VideoInitialize.pSetInterrupt(INT_CAUSE_PE_TOKEN, active);
interruptSetToken = active;
}
}
void UpdateFinishInterrupt(bool active)
{
if(interruptSetFinish != active)
{
g_VideoInitialize.pSetInterrupt(INT_CAUSE_PE_FINISH, active);
interruptSetFinish = 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)
{
//if (userdata >> 16)
//{
g_bSignalTokenInterrupt = true;
//_dbg_assert_msg_(PIXELENGINE, (CommandProcessor::fifo.PEToken == (userdata&0xFFFF)), "WTF? BPMEM_PE_TOKEN_INT_ID's token != BPMEM_PE_TOKEN_ID's token" );
INFO_LOG(PIXELENGINE, "VIDEO Plugin raises INT_CAUSE_PE_TOKEN (btw, token: %04x)", CommandProcessor::fifo.PEToken);
UpdateInterrupts();
CommandProcessor::interruptTokenWaiting = false;
//}
//else
// LOGV(PIXELENGINE, 1, "VIDEO Plugin wrote token: %i", CommandProcessor::fifo.PEToken);
}
void SetFinish_OnMainThread(u64 userdata, int cyclesLate)
{
g_bSignalFinishInterrupt = 1;
UpdateInterrupts();
CommandProcessor::interruptFinishWaiting = false;
}
// SetToken
// THIS IS EXECUTED FROM VIDEO THREAD
void SetToken(const u16 _token, const int _bSetTokenAcknowledge)
{
// TODO?: set-token-value and set-token-INT could be merged since set-token-INT own the token value.
if (_bSetTokenAcknowledge) // set token INT
{
// This seems smelly...
CommandProcessor::IncrementGPWDToken(); // for DC watchdog hack since PEToken seems to be a frame-finish too
Common::AtomicStore(*(volatile u32*)&CommandProcessor::fifo.PEToken, _token);
CommandProcessor::interruptTokenWaiting = true;
g_VideoInitialize.pScheduleEvent_Threadsafe(
0, et_SetTokenOnMainThread, _token | (_bSetTokenAcknowledge << 16));
}
else // set token value
{
// we do it directly from videoThread because of
// Super Monkey Ball
// 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, _token);
}
}
// SetFinish
// THIS IS EXECUTED FROM VIDEO THREAD (BPStructs.cpp) when a new frame has been drawn
void SetFinish()
{
CommandProcessor::IncrementGPWDToken(); // for DC watchdog hack
CommandProcessor::interruptFinishWaiting = true;
g_VideoInitialize.pScheduleEvent_Threadsafe(
0, et_SetFinishOnMainThread, 0);
INFO_LOG(PIXELENGINE, "VIDEO Set Finish");
}
//This function is used in CommandProcessor when write CTRL_REGISTER and the new fifo is attached.
void ResetSetFinish()
{
//if SetFinish happened but PE_CTRL_REGISTER not, I reset the interrupt else
//remove event from the queque
if (g_bSignalFinishInterrupt)
{
UpdateFinishInterrupt(false);
g_bSignalFinishInterrupt = false;
}else
{
g_VideoInitialize.pRemoveEvent(et_SetFinishOnMainThread);
}
CommandProcessor::interruptFinishWaiting = false;
}
void ResetSetToken()
{
if (g_bSignalTokenInterrupt)
{
UpdateTokenInterrupt(false);
g_bSignalTokenInterrupt = false;
}else
{
g_VideoInitialize.pRemoveEvent(et_SetTokenOnMainThread);
}
CommandProcessor::interruptTokenWaiting = false;
}
} // end of namespace PixelEngine