/* ZeroGS KOSMOS
* Copyright (C) 2005-2006 zerofrog@gmail.com
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "GifTransfer.h"
void GIFtag(pathInfo *path, u32 *data) {
path->tag.nloop = data[0] & 0x7fff;
path->tag.eop = (data[0] >> 15) & 0x1;
u32 tagpre = (data[1] >> 14) & 0x1;
u32 tagprim = (data[1] >> 15) & 0x7ff;
u32 tagflg = (data[1] >> 26) & 0x3;
path->tag.nreg = (data[1] >> 28)<<2;
if (path->tag.nreg == 0) path->tag.nreg = 64;
gs.q = 1;
// GS_LOG("GIFtag: %8.8lx_%8.8lx_%8.8lx_%8.8lx: EOP=%d, NLOOP=%x, FLG=%x, NREG=%d, PRE=%d\n",
// data[3], data[2], data[1], data[0],
// path->tag.eop, path->tag.nloop, tagflg, path->tag.nreg, tagpre);
path->mode = tagflg+1;
switch (tagflg) {
case 0x0:
path->regs = *(u64 *)(data+2);
path->regn = 0;
if (tagpre)
GIFRegHandlerPRIM((u32*)&tagprim);
break;
case 0x1:
path->regs = *(u64 *)(data+2);
path->regn = 0;
break;
}
}
void _GSgifPacket(pathInfo *path, u32 *pMem) { // 128bit
int reg = (int)((path->regs >> path->regn) & 0xf);
g_GIFPackedRegHandlers[reg](pMem);
path->regn += 4;
if (path->tag.nreg == path->regn) {
path->regn = 0;
path->tag.nloop--;
}
}
void _GSgifRegList(pathInfo *path, u32 *pMem) { // 64bit
int reg;
reg = (int)((path->regs >> path->regn) & 0xf);
g_GIFRegHandlers[reg](pMem);
path->regn += 4;
if (path->tag.nreg == path->regn) {
path->regn = 0;
path->tag.nloop--;
}
}
static int nPath3Hack = 0;
void CALLBACK GSgetLastTag(u64* ptag)
{
*(u32*)ptag = nPath3Hack;
nPath3Hack = 0;
}
void _GSgifTransfer(pathInfo *path, u32 *pMem, u32 size)
{
#ifdef _WIN32
assert( g_hCurrentThread == GetCurrentThread() );
#endif
#ifdef _DEBUG
if( conf.log & 0x20 ) {
static int nSaveIndex=0;
GS_LOG("%d: p:%d %x\n", nSaveIndex++, (path==&gs.path3)?3:(path==&gs.path2?2:1), size);
int vals[4] = {0};
for(int i = 0; i < size; i++) {
for(int j = 0; j < 4; ++j )
vals[j] ^= pMem[4*i+j];
}
GS_LOG("%x %x %x %x\n", vals[0], vals[1], vals[2], vals[3]);
}
#endif
while(size > 0)
{
//LOG(_T("Transfer(%08x, %d) START\n"), pMem, size);
if (path->tag.nloop == 0)
{
GIFtag(path, pMem);
pMem+= 4;
size--;
if ((g_GameSettings & GAME_PATH3HACK) && path == &gs.path3 && gs.path3.tag.eop)
nPath3Hack = 1;
if (path == &gs.path1)
{
// if too much data, just ignore
if (path->tag.nloop * (path->tag.nreg / 4) > (int)size * (path->mode==2?2:1))
{
static int lasttime = 0;
if( timeGetTime() - lasttime > 5000 )
{
ERROR_LOG("VU1 too much data, ignore if gfx are fine\n");
lasttime = timeGetTime();
}
path->tag.nloop = 0;
return;
}
if (path->mode == 1)
{
// check if 0xb is in any reg, if yes, exit (kh2)
for(int i = 0; i < path->tag.nreg; i += 4)
{
if (((path->regs >> i)&0xf) == 11)
{
static int lasttime = 0;
if( timeGetTime() - lasttime > 5000 )
{
ERROR_LOG("Invalid unpack type\n");
lasttime = timeGetTime();
}
path->tag.nloop = 0;
return;
}
}
}
}
if(path->tag.nloop == 0 )
{
if( path == &gs.path1 )
{
// ffx hack
/*if( g_GameSettings & GAME_FFXHACK )
{*/
if( path->tag.eop )
return;
continue;
/*}*/
return;
}
if( !path->tag.eop )
{
//DEBUG_LOG("continuing from eop\n");
continue;
}
continue;
}
}
switch(path->mode) {
case 1: // PACKED
{
assert( path->tag.nloop > 0 );
for(; size > 0; size--, pMem += 4)
{
int reg = (int)((path->regs >> path->regn) & 0xf);
g_GIFPackedRegHandlers[reg](pMem);
path->regn += 4;
if (path->tag.nreg == path->regn)
{
path->regn = 0;
if( path->tag.nloop-- <= 1 )
{
size--;
pMem += 4;
break;
}
}
}
break;
}
case 2: // REGLIST
{
//GS_LOG("%8.8x%8.8x %d L\n", ((u32*)&gs.regs)[1], *(u32*)&gs.regs, path->tag.nreg/4);
assert( path->tag.nloop > 0 );
size *= 2;
for(; size > 0; pMem+= 2, size--)
{
int reg = (int)((path->regs >> path->regn) & 0xf);
g_GIFRegHandlers[reg](pMem);
path->regn += 4;
if (path->tag.nreg == path->regn)
{
path->regn = 0;
if( path->tag.nloop-- <= 1 )
{
size--;
pMem += 2;
break;
}
}
}
if( size & 1 ) pMem += 2;
size /= 2;
break;
}
case 3: // GIF_IMAGE (FROM_VFRAM)
case 4: // Used in the DirectX version, so we'll use it here too.
{
if(gs.imageTransfer >= 0 && gs.imageTransfer <= 1)
{
int process = min((int)size, path->tag.nloop);
if( process > 0 )
{
if ( gs.imageTransfer )
ZeroGS::TransferLocalHost(pMem, process);
else
ZeroGS::TransferHostLocal(pMem, process*4);
path->tag.nloop -= process;
pMem += process*4; size -= process;
assert( size == 0 || path->tag.nloop == 0 );
}
break;
}
else
{
// simulate
int process = min((int)size, path->tag.nloop);
path->tag.nloop -= process;
pMem += process*4; size -= process;
}
break;
}
default: // GIF_IMAGE
GS_LOG("*** WARNING **** Unexpected GIFTag flag\n");
assert(0);
path->tag.nloop = 0;
break;
}
if( path == &gs.path1 && path->tag.eop )
return;
}
}
void CALLBACK GSgifTransfer2(u32 *pMem, u32 size)
{
//GS_LOG("GSgifTransfer2 size = %lx (mode %d, gs.path2.tag.nloop = %d)\n", size, gs.path2.mode, gs.path2.tag.nloop);
_GSgifTransfer(&gs.path2, pMem, size);
}
void CALLBACK GSgifTransfer3(u32 *pMem, u32 size)
{
//GS_LOG("GSgifTransfer3 size = %lx (mode %d, gs.path3.tag.nloop = %d)\n", size, gs.path3.mode, gs.path3.tag.nloop);
nPath3Hack = 0;
_GSgifTransfer(&gs.path3, pMem, size);
}
static int count = 0;
void CALLBACK GSgifTransfer1(u32 *pMem, u32 addr)
{
pathInfo *path = &gs.path1;
//GS_LOG("GSgifTransfer1 0x%x (mode %d)\n", addr, path->mode);
addr &= 0x3fff;
#ifdef _DEBUG
PRIM_LOG("count: %d\n", count);
count++;
#endif
gs.path1.tag.nloop = 0;
gs.path1.tag.eop = 0;
_GSgifTransfer(&gs.path1, (u32*)((u8*)pMem+addr), (0x4000-addr)/16);
if( !gs.path1.tag.eop && gs.path1.tag.nloop > 0 ) {
assert( (addr&0xf) == 0 ); //BUG
gs.path1.tag.nloop = 0;
ERROR_LOG("Transfer1 - 2\n");
return;
}
}