mirror of https://github.com/PCSX2/pcsx2.git
287 lines
7.9 KiB
C++
287 lines
7.9 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
|
|
* Copyright (C) 2002-2010 PCSX2 Dev Team
|
|
*
|
|
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU Lesser General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* PCSX2 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 for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with PCSX2.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "PrecompiledHeader.h"
|
|
#include "Common.h"
|
|
|
|
#include "Gif_Unit.h"
|
|
#include "Vif_Dma.h"
|
|
#include "MTVU.h"
|
|
|
|
Gif_Unit gifUnit;
|
|
|
|
// Returns true on stalling SIGNAL
|
|
bool Gif_HandlerAD(u8* pMem)
|
|
{
|
|
u32 reg = pMem[8];
|
|
u32* data = (u32*)pMem;
|
|
if (reg == 0x50)
|
|
{
|
|
vif1.BITBLTBUF._u64 = *(u64*)pMem;
|
|
}
|
|
else if (reg == 0x52)
|
|
{
|
|
vif1.TRXREG._u64 = *(u64*)pMem;
|
|
}
|
|
else if (reg == 0x53)
|
|
{ // TRXDIR
|
|
if ((pMem[0] & 3) == 1)
|
|
{ // local -> host
|
|
u8 bpp = 32; // Onimusha does TRXDIR without BLTDIVIDE first, assume 32bit
|
|
switch (vif1.BITBLTBUF.SPSM & 7)
|
|
{
|
|
case 0:
|
|
bpp = 32;
|
|
break;
|
|
case 1:
|
|
bpp = 24;
|
|
break;
|
|
case 2:
|
|
bpp = 16;
|
|
break;
|
|
case 3:
|
|
bpp = 8;
|
|
break;
|
|
default: // 4 is 4 bit but this is forbidden
|
|
Console.Error("Illegal format for GS upload: SPSM=0%02o", vif1.BITBLTBUF.SPSM);
|
|
break;
|
|
}
|
|
// qwords, rounded down; any extra bits are lost
|
|
// games must take care to ensure transfer rectangles are exact multiples of a qword
|
|
vif1.GSLastDownloadSize = vif1.TRXREG.RRW * vif1.TRXREG.RRH * bpp >> 7;
|
|
}
|
|
}
|
|
else if (reg == 0x60)
|
|
{ // SIGNAL
|
|
if (CSRreg.SIGNAL)
|
|
{ // Time to ignore all subsequent drawing operations.
|
|
GUNIT_WARN(Color_Orange, "GIF Handler - Stalling SIGNAL");
|
|
if (!gifUnit.gsSIGNAL.queued)
|
|
{
|
|
gifUnit.gsSIGNAL.queued = true;
|
|
gifUnit.gsSIGNAL.data[0] = data[0];
|
|
gifUnit.gsSIGNAL.data[1] = data[1];
|
|
return true; // Stalling SIGNAL
|
|
}
|
|
}
|
|
else
|
|
{
|
|
GUNIT_WARN("GIF Handler - SIGNAL");
|
|
GSSIGLBLID.SIGID = (GSSIGLBLID.SIGID & ~data[1]) | (data[0] & data[1]);
|
|
if (!GSIMR.SIGMSK)
|
|
gsIrq();
|
|
CSRreg.SIGNAL = true;
|
|
}
|
|
}
|
|
else if (reg == 0x61)
|
|
{ // FINISH
|
|
GUNIT_WARN("GIF Handler - FINISH");
|
|
CSRreg.FINISH = true;
|
|
}
|
|
else if (reg == 0x62)
|
|
{ // LABEL
|
|
GUNIT_WARN("GIF Handler - LABEL");
|
|
GSSIGLBLID.LBLID = (GSSIGLBLID.LBLID & ~data[1]) | (data[0] & data[1]);
|
|
}
|
|
else if (reg >= 0x63 && reg != 0x7f)
|
|
{
|
|
//DevCon.Warning("GIF Handler - Write to unknown register! [reg=%x]", reg);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool Gif_HandlerAD_MTVU(u8* pMem)
|
|
{
|
|
// Note: Atomic communication is with MTVU.cpp Get_GSChanges
|
|
u32 reg = pMem[8];
|
|
u32* data = (u32*)pMem;
|
|
|
|
if (reg == 0x60)
|
|
{ // SIGNAL
|
|
GUNIT_WARN("GIF Handler - SIGNAL");
|
|
if (vu1Thread.mtvuInterrupts.load(std::memory_order_acquire) & VU_Thread::InterruptFlagSignal)
|
|
Console.Error("GIF Handler MTVU - Double SIGNAL Not Handled");
|
|
vu1Thread.gsSignal.store(((u64)data[1] << 32) | data[0], std::memory_order_relaxed);
|
|
vu1Thread.mtvuInterrupts.fetch_or(VU_Thread::InterruptFlagSignal, std::memory_order_release);
|
|
}
|
|
else if (reg == 0x61)
|
|
{ // FINISH
|
|
GUNIT_WARN("GIF Handler - FINISH");
|
|
u32 old = vu1Thread.mtvuInterrupts.fetch_or(VU_Thread::InterruptFlagFinish, std::memory_order_relaxed);
|
|
if (old & VU_Thread::InterruptFlagFinish)
|
|
Console.Error("GIF Handler MTVU - Double FINISH Not Handled");
|
|
}
|
|
else if (reg == 0x62)
|
|
{ // LABEL
|
|
GUNIT_WARN("GIF Handler - LABEL");
|
|
// It's okay to coalesce label updates
|
|
u32 labelData = data[0];
|
|
u32 labelMsk = data[1];
|
|
u64 existing = 0;
|
|
u64 wanted = ((u64)labelMsk << 32) | labelData;
|
|
while (!vu1Thread.gsLabel.compare_exchange_weak(existing, wanted, std::memory_order_relaxed))
|
|
{
|
|
u32 existingData = (u32)existing;
|
|
u32 existingMsk = (u32)(existing >> 32);
|
|
u32 wantedData = (existingData & ~labelMsk) | (labelData & labelMsk);
|
|
u32 wantedMsk = existingMsk | labelMsk;
|
|
wanted = ((u64)wantedMsk << 32) | wantedData;
|
|
}
|
|
vu1Thread.mtvuInterrupts.fetch_or(VU_Thread::InterruptFlagLabel, std::memory_order_release);
|
|
}
|
|
else if (reg >= 0x63 && reg != 0x7f)
|
|
{
|
|
DevCon.Warning("GIF Handler Debug - Write to unknown register! [reg=%x]", reg);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// Returns true if pcsx2 needed to process the packet...
|
|
bool Gif_HandlerAD_Debug(u8* pMem)
|
|
{
|
|
u32 reg = pMem[8];
|
|
if (reg == 0x50)
|
|
{
|
|
Console.Error("GIF Handler Debug - BITBLTBUF");
|
|
return 1;
|
|
}
|
|
else if (reg == 0x52)
|
|
{
|
|
Console.Error("GIF Handler Debug - TRXREG");
|
|
return 1;
|
|
}
|
|
else if (reg == 0x53)
|
|
{
|
|
Console.Error("GIF Handler Debug - TRXDIR");
|
|
return 1;
|
|
}
|
|
else if (reg == 0x60)
|
|
{
|
|
Console.Error("GIF Handler Debug - SIGNAL");
|
|
return 1;
|
|
}
|
|
else if (reg == 0x61)
|
|
{
|
|
Console.Error("GIF Handler Debug - FINISH");
|
|
return 1;
|
|
}
|
|
else if (reg == 0x62)
|
|
{
|
|
Console.Error("GIF Handler Debug - LABEL");
|
|
return 1;
|
|
}
|
|
else if (reg >= 0x63 && reg != 0x7f)
|
|
{
|
|
DevCon.Warning("GIF Handler Debug - Write to unknown register! [reg=%x]", reg);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void Gif_FinishIRQ()
|
|
{
|
|
if (CSRreg.FINISH && !GSIMR.FINISHMSK && !gifUnit.gsFINISH.gsFINISHFired)
|
|
{
|
|
gsIrq();
|
|
gifUnit.gsFINISH.gsFINISHFired = true;
|
|
}
|
|
}
|
|
|
|
// Used in MTVU mode... MTVU will later complete a real packet
|
|
void Gif_AddGSPacketMTVU(GS_Packet& gsPack, GIF_PATH path)
|
|
{
|
|
GetMTGS().SendSimpleGSPacket(GS_RINGTYPE_MTVU_GSPACKET, 0, 0, path);
|
|
}
|
|
|
|
void Gif_AddCompletedGSPacket(GS_Packet& gsPack, GIF_PATH path)
|
|
{
|
|
//DevCon.WriteLn("Adding Completed Gif Packet [size=%x]", gsPack.size);
|
|
if (COPY_GS_PACKET_TO_MTGS)
|
|
{
|
|
GetMTGS().PrepDataPacket(path, gsPack.size / 16);
|
|
MemCopy_WrappedDest((u128*)&gifUnit.gifPath[path].buffer[gsPack.offset], RingBuffer.m_Ring,
|
|
GetMTGS().m_packet_writepos, RingBufferSize, gsPack.size / 16);
|
|
GetMTGS().SendDataPacket();
|
|
}
|
|
else
|
|
{
|
|
pxAssertDev(!gsPack.readAmount, "Gif Unit - gsPack.readAmount only valid for MTVU path 1!");
|
|
gifUnit.gifPath[path].readAmount.fetch_add(gsPack.size);
|
|
GetMTGS().SendSimpleGSPacket(GS_RINGTYPE_GSPACKET, gsPack.offset, gsPack.size, path);
|
|
}
|
|
}
|
|
|
|
void Gif_AddBlankGSPacket(u32 size, GIF_PATH path)
|
|
{
|
|
//DevCon.WriteLn("Adding Blank Gif Packet [size=%x]", size);
|
|
gifUnit.gifPath[path].readAmount.fetch_add(size);
|
|
GetMTGS().SendSimpleGSPacket(GS_RINGTYPE_GSPACKET, ~0u, size, path);
|
|
}
|
|
|
|
void Gif_MTGS_Wait(bool isMTVU)
|
|
{
|
|
GetMTGS().WaitGS(false, true, isMTVU);
|
|
}
|
|
|
|
void SaveStateBase::gifPathFreeze(u32 path)
|
|
{
|
|
|
|
Gif_Path& gifPath = gifUnit.gifPath[path];
|
|
pxAssertDev(!gifPath.readAmount, "Gif Path readAmount should be 0!");
|
|
pxAssertDev(!gifPath.gsPack.readAmount, "GS Pack readAmount should be 0!");
|
|
pxAssertDev(!gifPath.GetPendingGSPackets(), "MTVU GS Pack Queue should be 0!");
|
|
|
|
if (!gifPath.isMTVU())
|
|
{ // FixMe: savestate freeze bug (Gust games) with MTVU enabled
|
|
if (IsSaving())
|
|
{ // Move all the buffered data to the start of buffer
|
|
gifPath.RealignPacket(); // May add readAmount which we need to clear on load
|
|
}
|
|
}
|
|
u8* bufferPtr = gifPath.buffer; // Backup current buffer ptr
|
|
Freeze(gifPath.mtvu.fakePackets);
|
|
FreezeMem(&gifPath, sizeof(gifPath) - sizeof(gifPath.mtvu));
|
|
FreezeMem(bufferPtr, gifPath.curSize);
|
|
gifPath.buffer = bufferPtr;
|
|
if (!IsSaving())
|
|
{
|
|
gifPath.readAmount = 0;
|
|
gifPath.gsPack.readAmount = 0;
|
|
}
|
|
}
|
|
|
|
void SaveStateBase::gifFreeze()
|
|
{
|
|
bool mtvuMode = THREAD_VU1;
|
|
pxAssert(vu1Thread.IsDone());
|
|
GetMTGS().WaitGS();
|
|
FreezeTag("Gif Unit");
|
|
Freeze(mtvuMode);
|
|
Freeze(gifUnit.stat);
|
|
Freeze(gifUnit.gsSIGNAL);
|
|
Freeze(gifUnit.gsFINISH);
|
|
Freeze(gifUnit.lastTranType);
|
|
gifPathFreeze(GIF_PATH_1);
|
|
gifPathFreeze(GIF_PATH_2);
|
|
gifPathFreeze(GIF_PATH_3);
|
|
if (!IsSaving())
|
|
{
|
|
if (mtvuMode != THREAD_VU1)
|
|
{
|
|
DevCon.Warning("gifUnit: MTVU Mode has switched between save/load state");
|
|
// ToDo: gifUnit.SwitchMTVU(mtvuMode);
|
|
}
|
|
}
|
|
}
|