pcsx2/plugins/zzogl-pg/opengl/HostMemory.h

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/* 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 HOSTMEMORY_H_INCLUDED
#define HOSTMEMORY_H_INCLUDED
#include "GLWin.h"
#define MEMORY_END 0x00400000
extern int GPU_TEXWIDTH;
extern u8* g_pBasePS2Mem;
extern u8* g_pbyGSMemory;
class GSMemory
{
public:
void init();
void destroy();
u8* get();
u8* get(u32 addr);
u8* get_raw(u32 addr);
};
extern u8* g_pbyGSClut; // the temporary clut buffer
class GSClut
{
public:
void init();
void destroy();
u8* get();
u8* get(u32 addr);
u8* get_raw(u32 addr);
};
class ZeroGSInit
{
public:
ZeroGSInit()
{
const u32 mem_size = MEMORY_END + 0x10000; // leave some room for out of range accesses (saves on the checks)
// clear
g_pbyGSMemory = (u8*)_aligned_malloc(mem_size, 1024);
memset(g_pbyGSMemory, 0, mem_size);
g_pbyGSClut = (u8*)_aligned_malloc(256 * 8, 1024); // need 512 alignment!
memset(g_pbyGSClut, 0, 256*8);
memset(&GLWin, 0, sizeof(GLWin));
}
~ZeroGSInit()
{
_aligned_free(g_pbyGSMemory);
g_pbyGSMemory = NULL;
_aligned_free(g_pbyGSClut);
g_pbyGSClut = NULL;
}
};
// The size in bytes of x strings (of texture).
inline int MemorySize(int x)
{
return 4 * GPU_TEXWIDTH * x;
}
// Return the address in memory of data block for string x.
inline u8* MemoryAddress(int x)
{
return g_pbyGSMemory + MemorySize(x);
}
template <u32 mult>
inline u8* _MemoryAddress(int x)
{
return g_pbyGSMemory + mult * x;
}
extern void GetRectMemAddress(int& start, int& end, int psm, int x, int y, int w, int h, int bp, int bw);
extern void GetRectMemAddress(int& start, int& end, int psm, Point p, Size s, int bp, int bw);
extern void GetRectMemAddress(int& start, int& end, int psm, int x, int y, Size s, int bp, int bw);
extern void GetRectMemAddressZero(int& start, int& end, int psm, int w, int h, int bp, int bw);
extern void GetRectMemAddressZero(int& start, int& end, int psm, Size s, int bp, int bw);
// called when trxdir is accessed. If host is involved, transfers memory to temp buffer byTransferBuf.
// Otherwise performs the transfer. TODO: Perhaps divide the transfers into chunks?
extern void InitTransferHostLocal();
extern void TransferHostLocal(const void* pbyMem, u32 nQWordSize);
extern void InitTransferLocalHost();
extern void TransferLocalHost(void* pbyMem, u32 nQWordSize);
extern void TransferLocalLocal();
#endif // HOSTMEMORY_H_INCLUDED