323 lines
9.1 KiB
C++
323 lines
9.1 KiB
C++
// Copyright (C) 2003-2008 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/
|
|
|
|
//DL facts:
|
|
// Ikaruga uses (nearly) NO display lists!
|
|
// Zelda WW uses TONS of display lists
|
|
// Zelda TP uses almost 100% display lists except menus (we like this!)
|
|
|
|
// Note that it IS NOT GENERALLY POSSIBLE to precompile display lists! You can compile them as they are
|
|
// and hope that the vertex format doesn't change, though, if you do it just when they are
|
|
// called. The reason is that the vertex format affects the sizes of the vertices.
|
|
|
|
#include "Globals.h"
|
|
#include "Profiler.h"
|
|
#include "OpcodeDecoding.h"
|
|
#include "VertexLoader.h"
|
|
#include "VertexManager.h"
|
|
#include "VertexShaderManager.h"
|
|
|
|
#include "BPStructs.h"
|
|
#include "Fifo.h"
|
|
#include "DataReader.h"
|
|
|
|
#define CMDBUFFER_SIZE 1024*1024
|
|
|
|
u8* g_pVideoData = 0;
|
|
|
|
extern u8* FAKE_GetFifoStartPtr();
|
|
extern u8* FAKE_GetFifoEndPtr();
|
|
|
|
void Decode();
|
|
|
|
template <class T>
|
|
void Xchg(T& a, T&b)
|
|
{
|
|
T c = a;
|
|
a = b;
|
|
b = c;
|
|
}
|
|
|
|
void ExecuteDisplayList(u32 address, u32 size)
|
|
{
|
|
u8* old_pVideoData = g_pVideoData;
|
|
|
|
u8* startAddress = Memory_GetPtr(address);
|
|
g_pVideoData = startAddress;
|
|
|
|
// temporarily swap dl and non-dl(small "hack" for the stats)
|
|
Xchg(stats.thisFrame.numDLPrims, stats.thisFrame.numPrims);
|
|
Xchg(stats.thisFrame.numXFLoadsInDL, stats.thisFrame.numXFLoads);
|
|
Xchg(stats.thisFrame.numCPLoadsInDL, stats.thisFrame.numCPLoads);
|
|
Xchg(stats.thisFrame.numBPLoadsInDL, stats.thisFrame.numBPLoads);
|
|
|
|
while((u32)(g_pVideoData - startAddress) < size)
|
|
{
|
|
Decode();
|
|
}
|
|
INCSTAT(stats.numDListsCalled);
|
|
INCSTAT(stats.thisFrame.numDListsCalled);
|
|
|
|
// un-swap
|
|
Xchg(stats.thisFrame.numDLPrims, stats.thisFrame.numPrims);
|
|
Xchg(stats.thisFrame.numXFLoadsInDL, stats.thisFrame.numXFLoads);
|
|
Xchg(stats.thisFrame.numCPLoadsInDL, stats.thisFrame.numCPLoads);
|
|
Xchg(stats.thisFrame.numBPLoadsInDL, stats.thisFrame.numBPLoads);
|
|
|
|
// reset to the old pointer
|
|
g_pVideoData = old_pVideoData;
|
|
}
|
|
|
|
bool FifoCommandRunnable(void)
|
|
{
|
|
u32 iBufferSize = (u32)(FAKE_GetFifoEndPtr() - g_pVideoData);
|
|
if (iBufferSize == 0)
|
|
return false; // can't peek
|
|
|
|
u8 Cmd = DataPeek8(0);
|
|
u32 iCommandSize = 0;
|
|
|
|
switch(Cmd)
|
|
{
|
|
case GX_NOP:
|
|
// Hm, this means that we scan over nop streams pretty slowly...
|
|
iCommandSize = 1;
|
|
break;
|
|
|
|
case GX_LOAD_CP_REG:
|
|
iCommandSize = 6;
|
|
break;
|
|
|
|
case GX_LOAD_INDX_A:
|
|
case GX_LOAD_INDX_B:
|
|
case GX_LOAD_INDX_C:
|
|
case GX_LOAD_INDX_D:
|
|
iCommandSize = 5;
|
|
break;
|
|
|
|
case GX_CMD_CALL_DL:
|
|
iCommandSize = 9;
|
|
break;
|
|
|
|
case 0x44:
|
|
iCommandSize = 1;
|
|
// zelda 4 swords calls it and checks the metrics registers after that
|
|
break;
|
|
|
|
case GX_CMD_INVL_VC: // invalid vertex cache - no parameter?
|
|
iCommandSize = 1;
|
|
break;
|
|
|
|
case GX_LOAD_BP_REG:
|
|
iCommandSize = 5;
|
|
break;
|
|
|
|
case GX_LOAD_XF_REG:
|
|
{
|
|
// check if we can read the header
|
|
if (iBufferSize >= 5)
|
|
{
|
|
iCommandSize = 1 + 4;
|
|
u32 Cmd2 = DataPeek32(1);
|
|
int dwTransferSize = ((Cmd2 >> 16) & 15) + 1;
|
|
iCommandSize += dwTransferSize * 4;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
if (Cmd & 0x80)
|
|
{
|
|
// check if we can read the header
|
|
if (iBufferSize >= 3)
|
|
{
|
|
iCommandSize = 1 + 2;
|
|
u16 numVertices = DataPeek16(1);
|
|
VertexLoader& vtxLoader = g_VertexLoaders[Cmd & GX_VAT_MASK];
|
|
iCommandSize += numVertices * vtxLoader.ComputeVertexSize();
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char szTemp[1024];
|
|
sprintf(szTemp, "GFX: Unknown Opcode (0x%x).\n"
|
|
"This means one of the following:\n"
|
|
"* The emulated GPU got desynced, disabling dual core can help\n"
|
|
"* Command stream corrupted by some spurious memory bug\n"
|
|
"* This really is an unknown opcode (unlikely)\n"
|
|
"* Some other sort of bug\n\n"
|
|
"Dolphin will now likely crash or hang. Enjoy." , Cmd);
|
|
g_VideoInitialize.pSysMessage(szTemp);
|
|
g_VideoInitialize.pLog(szTemp, TRUE);
|
|
{
|
|
SCPFifoStruct &fifo = *g_VideoInitialize.pCPFifo;
|
|
|
|
char szTmp[256];
|
|
// sprintf(szTmp, "Illegal command %02x (at %08x)",Cmd,g_pDataReader->GetPtr());
|
|
sprintf(szTmp, "Illegal command %02x\n"
|
|
"CPBase: 0x%08x\n"
|
|
"CPEnd: 0x%08x\n"
|
|
"CPHiWatermark: 0x%08x\n"
|
|
"CPLoWatermark: 0x%08x\n"
|
|
"CPReadWriteDistance: 0x%08x\n"
|
|
"CPWritePointer: 0x%08x\n"
|
|
"CPReadPointer: 0x%08x\n"
|
|
"CPBreakpoint: 0x%08x\n"
|
|
"bFF_GPReadEnable: %s\n"
|
|
"bFF_BPEnable: %s\n"
|
|
"bFF_GPLinkEnable: %s\n"
|
|
"bFF_Breakpoint: %s\n"
|
|
,Cmd, fifo.CPBase, fifo.CPEnd, fifo.CPHiWatermark, fifo.CPLoWatermark, fifo.CPReadWriteDistance
|
|
,fifo.CPWritePointer, fifo.CPReadPointer, fifo.CPBreakpoint, fifo.bFF_GPReadEnable ? "true" : "false"
|
|
,fifo.bFF_BPEnable ? "true" : "false" ,fifo.bFF_GPLinkEnable ? "true" : "false"
|
|
,fifo.bFF_Breakpoint ? "true" : "false");
|
|
|
|
g_VideoInitialize.pSysMessage(szTmp);
|
|
g_VideoInitialize.pLog(szTmp, TRUE);
|
|
// _assert_msg_(0,szTmp,"");
|
|
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (iCommandSize > iBufferSize)
|
|
return false;
|
|
|
|
// INFO_LOG("OP detected: Cmd 0x%x size %i buffer %i",Cmd, iCommandSize, iBufferSize);
|
|
|
|
return true;
|
|
}
|
|
|
|
void Decode(void)
|
|
{
|
|
int Cmd = DataReadU8();
|
|
switch(Cmd)
|
|
{
|
|
case GX_NOP:
|
|
break;
|
|
|
|
case GX_LOAD_CP_REG: //0x08
|
|
{
|
|
u32 SubCmd = DataReadU8();
|
|
u32 Value = DataReadU32();
|
|
VertexManager::LoadCPReg(SubCmd,Value);
|
|
INCSTAT(stats.thisFrame.numCPLoads);
|
|
}
|
|
break;
|
|
|
|
case GX_LOAD_XF_REG:
|
|
{
|
|
u32 Cmd2 = DataReadU32();
|
|
|
|
int dwTransferSize = ((Cmd2>>16)&15) + 1;
|
|
u32 dwAddress = Cmd2 & 0xFFFF;
|
|
static u32 pData[16];
|
|
for (int i=0; i<dwTransferSize; i++)
|
|
pData[i] = DataReadU32();
|
|
VertexShaderMngr::LoadXFReg(dwTransferSize,dwAddress,pData);
|
|
INCSTAT(stats.thisFrame.numXFLoads);
|
|
}
|
|
break;
|
|
|
|
case GX_LOAD_INDX_A: //used for position matrices
|
|
VertexShaderMngr::LoadIndexedXF(DataReadU32(),0xC);
|
|
break;
|
|
case GX_LOAD_INDX_B: //used for normal matrices
|
|
VertexShaderMngr::LoadIndexedXF(DataReadU32(),0xD);
|
|
break;
|
|
case GX_LOAD_INDX_C: //used for postmatrices
|
|
VertexShaderMngr::LoadIndexedXF(DataReadU32(),0xE);
|
|
break;
|
|
case GX_LOAD_INDX_D: //used for lights
|
|
VertexShaderMngr::LoadIndexedXF(DataReadU32(),0xF);
|
|
break;
|
|
|
|
case GX_CMD_CALL_DL:
|
|
{
|
|
u32 dwAddr = DataReadU32();
|
|
u32 dwCount = DataReadU32();
|
|
ExecuteDisplayList(dwAddr, dwCount);
|
|
}
|
|
break;
|
|
|
|
case 0x44:
|
|
// zelda 4 swords calls it and checks the metrics registers after that
|
|
break;
|
|
|
|
case GX_CMD_INVL_VC:// Invalidate (vertex cache?)
|
|
DebugLog("Invalidate (vertex cache?)");
|
|
break;
|
|
|
|
case GX_LOAD_BP_REG: //0x61
|
|
{
|
|
u32 cmd = DataReadU32();
|
|
LoadBPReg(cmd);
|
|
INCSTAT(stats.thisFrame.numBPLoads);
|
|
}
|
|
break;
|
|
|
|
// draw primitives
|
|
default:
|
|
if (Cmd&0x80)
|
|
{
|
|
// load vertices (use computed vertex size from FifoCommandRunnable above)
|
|
u16 numVertices = DataReadU16();
|
|
if (numVertices > 0) {
|
|
g_VertexLoaders[Cmd & GX_VAT_MASK].RunVertices((Cmd & GX_PRIMITIVE_MASK) >> GX_PRIMITIVE_SHIFT, numVertices);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// char szTmp[256];
|
|
//sprintf(szTmp, "Illegal command %02x (at %08x)",Cmd,g_pDataReader->GetPtr());
|
|
//g_VideoInitialize.pLog(szTmp);
|
|
//MessageBox(0,szTmp,"GFX ERROR",0);
|
|
// _assert_msg_(0,szTmp,"");
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void OpcodeDecoder_Init()
|
|
{
|
|
g_pVideoData = FAKE_GetFifoStartPtr();
|
|
}
|
|
|
|
|
|
void OpcodeDecoder_Shutdown()
|
|
{
|
|
}
|
|
|
|
void OpcodeDecoder_Run()
|
|
{
|
|
DVSTARTPROFILE();
|
|
while (FifoCommandRunnable())
|
|
{
|
|
Decode();
|
|
}
|
|
}
|