mirror of https://github.com/PCSX2/pcsx2.git
320 lines
6.9 KiB
C++
320 lines
6.9 KiB
C++
/* ZeroGS KOSMOS
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* Copyright (C) 2005-2006 zerofrog@gmail.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "GifTransfer.h"
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void GIFtag(pathInfo *path, u32 *data) {
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FUNCLOG
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path->tag.nloop = data[0] & 0x7fff;
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path->tag.eop = (data[0] >> 15) & 0x1;
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u32 tagpre = (data[1] >> 14) & 0x1;
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u32 tagprim = (data[1] >> 15) & 0x7ff;
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u32 tagflg = (data[1] >> 26) & 0x3;
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path->tag.nreg = (data[1] >> 28)<<2;
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if (path->tag.nreg == 0) path->tag.nreg = 64;
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gs.q = 1;
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// GS_LOG("GIFtag: %8.8lx_%8.8lx_%8.8lx_%8.8lx: EOP=%d, NLOOP=%x, FLG=%x, NREG=%d, PRE=%d\n",
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// data[3], data[2], data[1], data[0],
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// path->tag.eop, path->tag.nloop, tagflg, path->tag.nreg, tagpre);
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path->mode = tagflg+1;
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switch (tagflg) {
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case 0x0:
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path->regs = *(u64 *)(data+2);
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path->regn = 0;
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if (tagpre)
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GIFRegHandlerPRIM((u32*)&tagprim);
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break;
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case 0x1:
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path->regs = *(u64 *)(data+2);
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path->regn = 0;
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break;
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}
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}
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void _GSgifPacket(pathInfo *path, u32 *pMem) { // 128bit
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FUNCLOG
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int reg = (int)((path->regs >> path->regn) & 0xf);
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g_GIFPackedRegHandlers[reg](pMem);
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path->regn += 4;
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if (path->tag.nreg == path->regn) {
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path->regn = 0;
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path->tag.nloop--;
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}
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}
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void _GSgifRegList(pathInfo *path, u32 *pMem) { // 64bit
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FUNCLOG
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int reg;
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reg = (int)((path->regs >> path->regn) & 0xf);
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g_GIFRegHandlers[reg](pMem);
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path->regn += 4;
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if (path->tag.nreg == path->regn) {
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path->regn = 0;
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path->tag.nloop--;
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}
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}
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static int nPath3Hack = 0;
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void CALLBACK GSgetLastTag(u64* ptag)
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{
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FUNCLOG
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*(u32*)ptag = nPath3Hack;
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nPath3Hack = 0;
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}
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// for debug assertion checks (thread affinity checks)
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extern HANDLE g_hCurrentThread;
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void _GSgifTransfer(pathInfo *path, u32 *pMem, u32 size)
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{
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FUNCLOG
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#ifdef _WIN32
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assert( g_hCurrentThread == GetCurrentThread() );
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#endif
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#ifdef _DEBUG
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if( conf.log & 0x20 ) {
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static int nSaveIndex=0;
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GS_LOG("%d: p:%d %x\n", nSaveIndex++, (path==&gs.path3)?3:(path==&gs.path2?2:1), size);
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int vals[4] = {0};
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for(int i = 0; i < size; i++) {
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for(int j = 0; j < 4; ++j )
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vals[j] ^= pMem[4*i+j];
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}
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GS_LOG("%x %x %x %x\n", vals[0], vals[1], vals[2], vals[3]);
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}
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#endif
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while(size > 0)
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{
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//LOG(_T("Transfer(%08x, %d) START\n"), pMem, size);
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if (path->tag.nloop == 0)
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{
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GIFtag(path, pMem);
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pMem+= 4;
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size--;
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if ((g_GameSettings & GAME_PATH3HACK) && path == &gs.path3 && gs.path3.tag.eop)
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nPath3Hack = 1;
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if (path == &gs.path1)
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{
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if (path->mode == 1)
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{
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// check if 0xb is in any reg, if yes, exit (kh2)
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for(int i = 0; i < path->tag.nreg; i += 4)
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{
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if (((path->regs >> i)&0xf) == 11)
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{
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ERROR_LOG_SPAM("Invalid unpack type\n");
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path->tag.nloop = 0;
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return;
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}
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}
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}
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}
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if(path->tag.nloop == 0 )
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{
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if( path == &gs.path1 )
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{
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// ffx hack
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if( path->tag.eop )
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return;
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continue;
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}
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if( !path->tag.eop )
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{
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//DEBUG_LOG("continuing from eop\n");
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continue;
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}
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// Issue 174 fix!
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continue;
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}
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}
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switch(path->mode) {
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case 1: // PACKED
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{
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assert( path->tag.nloop > 0 );
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for(; size > 0; size--, pMem += 4)
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{
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int reg = (int)((path->regs >> path->regn) & 0xf);
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g_GIFPackedRegHandlers[reg](pMem);
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path->regn += 4;
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if (path->tag.nreg == path->regn)
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{
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path->regn = 0;
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if( path->tag.nloop-- <= 1 )
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{
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size--;
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pMem += 4;
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break;
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}
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}
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}
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break;
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}
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case 2: // REGLIST
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{
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//GS_LOG("%8.8x%8.8x %d L\n", ((u32*)&gs.regs)[1], *(u32*)&gs.regs, path->tag.nreg/4);
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assert( path->tag.nloop > 0 );
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size *= 2;
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for(; size > 0; pMem+= 2, size--)
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{
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int reg = (int)((path->regs >> path->regn) & 0xf);
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g_GIFRegHandlers[reg](pMem);
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path->regn += 4;
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if (path->tag.nreg == path->regn)
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{
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path->regn = 0;
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if( path->tag.nloop-- <= 1 )
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{
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size--;
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pMem += 2;
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break;
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}
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}
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}
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if( size & 1 ) pMem += 2;
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size /= 2;
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break;
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}
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case 3: // GIF_IMAGE (FROM_VFRAM)
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case 4: // Used in the DirectX version, so we'll use it here too.
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{
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if(gs.imageTransfer >= 0 && gs.imageTransfer <= 1)
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{
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int process = min((int)size, path->tag.nloop);
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if( process > 0 )
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{
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if ( gs.imageTransfer )
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ZeroGS::TransferLocalHost(pMem, process);
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else
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ZeroGS::TransferHostLocal(pMem, process*4);
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path->tag.nloop -= process;
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pMem += process*4; size -= process;
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assert( size == 0 || path->tag.nloop == 0 );
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}
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break;
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}
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else
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{
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// simulate
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int process = min((int)size, path->tag.nloop);
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path->tag.nloop -= process;
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pMem += process*4; size -= process;
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}
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break;
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}
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default: // GIF_IMAGE
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GS_LOG("*** WARNING **** Unexpected GIFTag flag\n");
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assert(0);
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path->tag.nloop = 0;
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break;
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}
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if( path == &gs.path1 && path->tag.eop )
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return;
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}
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// This is case when not all data was readed from one try: VU1 to much data.
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// So we should redone reading from start
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if (path == &gs.path1 && size == 0 && path->tag.nloop > 0) {
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ERROR_LOG_SPAMA("VU1 too much data, ignore if gfx are fine %d\n", path->tag.nloop)
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// TODO: this code is not working correctly. Anyway, ringing work only in single-threadred mode.
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// _GSgifTransfer(&gs.path1, (u32*)((u8*)pMem-0x4000), (0x4000)/16);
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}
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}
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void CALLBACK GSgifTransfer2(u32 *pMem, u32 size)
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{
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FUNCLOG
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//GS_LOG("GSgifTransfer2 size = %lx (mode %d, gs.path2.tag.nloop = %d)\n", size, gs.path2.mode, gs.path2.tag.nloop);
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_GSgifTransfer(&gs.path2, pMem, size);
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}
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void CALLBACK GSgifTransfer3(u32 *pMem, u32 size)
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{
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FUNCLOG
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//GS_LOG("GSgifTransfer3 size = %lx (mode %d, gs.path3.tag.nloop = %d)\n", size, gs.path3.mode, gs.path3.tag.nloop);
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nPath3Hack = 0;
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_GSgifTransfer(&gs.path3, pMem, size);
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}
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#ifdef _DEBUG
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static int count = 0;
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#endif
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void CALLBACK GSgifTransfer1(u32 *pMem, u32 addr)
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{
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FUNCLOG
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//pathInfo *path = &gs.path1;
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//GS_LOG("GSgifTransfer1 0x%x (mode %d)\n", addr, path->mode);
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// addr &= 0x3fff;
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#ifdef _DEBUG
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PRIM_LOG("count: %d\n", count);
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count++;
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#endif
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gs.path1.tag.nloop = 0;
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gs.path1.tag.eop = 0;
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_GSgifTransfer(&gs.path1, (u32*)((u8*)pMem+addr), (0x4000 - addr)/16);
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if( !gs.path1.tag.eop && gs.path1.tag.nloop > 0 ) {
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assert( (addr&0xf) == 0 ); //BUG
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gs.path1.tag.nloop = 0;
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ERROR_LOG("Transfer1 - 2\n");
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return;
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}
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}
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