mirror of
https://github.com/libretro/pcsx2.git
synced 2024-11-25 02:09:52 +00:00
38c229a350
git-svn-id: http://pcsx2.googlecode.com/svn/branches/GregMiscellaneous@4006 96395faa-99c1-11dd-bbfe-3dabce05a288
135 lines
2.7 KiB
C
135 lines
2.7 KiB
C
/* ZZ Open GL graphics plugin
|
|
* Copyright (c)2009-2010 zeydlitz@gmail.com, arcum42@gmail.com
|
|
* Based on Zerofrog's ZeroGS KOSMOS (c)2005-2008
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef GIFTRANSFER_H_INCLUDED
|
|
#define GIFTRANSFER_H_INCLUDED
|
|
|
|
#include "Util.h"
|
|
#include "GS.h"
|
|
#include "Regs.h"
|
|
|
|
enum GIF_FLG
|
|
{
|
|
GIF_FLG_PACKED = 0,
|
|
GIF_FLG_REGLIST = 1,
|
|
GIF_FLG_IMAGE = 2,
|
|
GIF_FLG_IMAGE2 = 3
|
|
};
|
|
|
|
//
|
|
// GIFTag
|
|
union GIFTag
|
|
{
|
|
u64 ai64[2];
|
|
u32 ai32[4];
|
|
|
|
struct
|
|
{
|
|
u32 NLOOP : 15;
|
|
u32 EOP : 1;
|
|
u32 _PAD1 : 16;
|
|
u32 _PAD2 : 14;
|
|
u32 PRE : 1;
|
|
u32 PRIM : 11;
|
|
u32 FLG : 2; // enum GIF_FLG
|
|
u32 NREG : 4;
|
|
u64 REGS : 64;
|
|
};
|
|
|
|
void set(const u32 *data)
|
|
{
|
|
for (int i = 0; i <= 3; i++)
|
|
{
|
|
ai32[i] = data[i];
|
|
}
|
|
}
|
|
|
|
GIFTag(u32 *data)
|
|
{
|
|
set(data);
|
|
}
|
|
|
|
GIFTag(){ ai64[0] = 0; ai64[1] = 0; }
|
|
};
|
|
|
|
// EE part. Data transfer packet description
|
|
|
|
typedef struct
|
|
{
|
|
u32 mode;
|
|
int reg;
|
|
u64 regs;
|
|
u32 nloop;
|
|
int eop;
|
|
int nreg;
|
|
u32 adonly;
|
|
GIFTag tag;
|
|
|
|
void setTag(const u32 *data)
|
|
{
|
|
tag.set(data);
|
|
|
|
nloop = tag.NLOOP;
|
|
eop = tag.EOP;
|
|
mode = tag.FLG;
|
|
adonly = false;
|
|
|
|
// Hmm....
|
|
nreg = tag.NREG << 2;
|
|
if (nreg == 0) nreg = 64;
|
|
regs = tag.REGS;
|
|
reg = 0;
|
|
if ((nreg == 4) && (regs == GIF_REG_A_D)) adonly = true;
|
|
|
|
// ZZLog::GS_Log("GIFtag: %8.8lx_%8.8lx_%8.8lx_%8.8lx: EOP=%d, NLOOP=%x, FLG=%x, NREG=%d, PRE=%d",
|
|
// data[3], data[2], data[1], data[0],
|
|
// path->eop, path->nloop, mode, path->nreg, tag.PRE);
|
|
}
|
|
|
|
u32 GetReg()
|
|
{
|
|
return (regs >> reg) & 0xf;
|
|
}
|
|
|
|
bool StepReg()
|
|
{
|
|
reg += 4;
|
|
|
|
if (reg == nreg)
|
|
{
|
|
reg = 0;
|
|
nloop--;
|
|
|
|
if (nloop == 0) return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
} pathInfo;
|
|
|
|
extern void _GSgifPacket(pathInfo *path, const u32 *pMem);
|
|
extern void _GSgifRegList(pathInfo *path, const u32 *pMem);
|
|
extern void _GSgifTransfer(pathInfo *path, const u32 *pMem, u32 size);
|
|
|
|
extern GIFRegHandler g_GIFPackedRegHandlers[];
|
|
extern GIFRegHandler g_GIFRegHandlers[];
|
|
extern void InitPath();
|
|
#endif // GIFTRANSFER_H_INCLUDED
|