dolphin/Source/Plugins/Plugin_VideoOGL/Src/DataReader.h

219 lines
5.2 KiB
C++

// Copyright (C) 2003-2008 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef _DATAREADER_H
#define _DATAREADER_H
#include "Fifo.h"
#if !defined(DATAREADER_INLINE) || defined(DATAREADER_DEBUG)
// =================================================================================================
// IDataReader
// =================================================================================================
class IDataReader
{
protected:
virtual ~IDataReader();
public:
virtual void Skip(u32) = 0;
virtual u8 Read8 () = 0;
virtual u16 Read16() = 0;
virtual u32 Read32() = 0;
virtual int GetPosition() = 0; // return values can be anything, as long as relative distances are correct
virtual int GetRealPtr() = 0;
};
// =================================================================================================
// CDataReader_Fifo
// =================================================================================================
class CDataReader_Fifo : public IDataReader
{
private:
public:
CDataReader_Fifo();
virtual void Skip(u32);
virtual u8 Read8();
virtual u16 Read16();
virtual u32 Read32();
virtual int GetPosition();
virtual int GetRealPtr();
};
// =================================================================================================
// CDataReader_Memory
// =================================================================================================
class CDataReader_Memory : public IDataReader
{
private:
//u8* m_pMemory;
u32 m_uReadAddress;
public:
CDataReader_Memory(u32 _uAddress);
u32 GetReadAddress();
virtual void Skip(u32);
virtual u8 Read8();
virtual u16 Read16();
virtual u32 Read32();
virtual int GetPosition();
virtual int GetRealPtr();
};
extern IDataReader* g_pDataReader;
#endif
#ifdef DATAREADER_INLINE
extern u32 g_pVideoData;
#endif
#ifdef DATAREADER_DEBUG
extern u32 g_pDataReaderRealPtr;
#define DATAREADER_DEBUG_CHECK_PTR g_pDataReaderRealPtr = g_pDataReader->GetRealPtr(); \
if (g_pDataReaderRealPtr!=g_pVideoData) _asm int 3
#define DATAREADER_DEBUG_CHECK_PTR_VAL g_pDataReaderRealPtr = g_pDataReader->GetRealPtr(); \
if ((g_pDataReaderRealPtr != g_pVideoData) || (tmp != tmpdb)) _asm int 3
//#define DATAREADER_DEBUG_CHECK_PTR_VAL DATAREADER_DEBUG_CHECK_PTR
#else
#define DATAREADER_DEBUG_CHECK_PTR
#define DATAREADER_DEBUG_CHECK_PTR_VAL
#endif
#ifdef DATAREADER_INLINE
inline u8 DataPeek8(u32 _uOffset)
{
u8 tmp = *(u8*)(g_pVideoData + _uOffset);
return tmp;
}
inline u16 DataPeek16(u32 _uOffset)
{
u16 tmp = Common::swap16(*(u16*)(g_pVideoData + _uOffset));
return tmp;
}
inline u32 DataPeek32(u32 _uOffset) {
u32 tmp = Common::swap32(*(u32*)(g_pVideoData + _uOffset));
return tmp;
}
inline u8 DataReadU8()
{
u8 tmp = *(u8*)g_pVideoData;
g_pVideoData++;
#ifdef DATAREADER_DEBUG
u8 tmpdb = g_pDataReader->Read8();
DATAREADER_DEBUG_CHECK_PTR_VAL;
#endif
return tmp;
}
inline u16 DataReadU16()
{
u16 tmp = Common::swap16(*(u16*)g_pVideoData);
g_pVideoData+=2;
#ifdef DATAREADER_DEBUG
u16 tmpdb = g_pDataReader->Read16();
DATAREADER_DEBUG_CHECK_PTR_VAL;
#endif
return tmp;
}
inline u32 DataReadU32()
{
u32 tmp = Common::swap32(*(u32*)g_pVideoData);
g_pVideoData+=4;
#ifdef DATAREADER_DEBUG
u32 tmpdb = g_pDataReader->Read32();
DATAREADER_DEBUG_CHECK_PTR_VAL;
#endif
return tmp;
}
inline float DataReadF32()
{
union {u32 i; float f;} temp;
temp.i = Common::swap32(*(u32*)g_pVideoData);
g_pVideoData+=4;
float tmp = temp.f;
#ifdef DATAREADER_DEBUG
//TODO clean up
u32 tmp3 = g_pDataReader->Read32();
float tmpdb = *(float*)(&tmp3);
DATAREADER_DEBUG_CHECK_PTR_VAL;
#endif
return tmp;
}
inline u32 DataGetPosition()
{
#ifdef DATAREADER_DEBUG
DATAREADER_DEBUG_CHECK_PTR;
#endif
return g_pVideoData;
}
inline void DataSkip(u32 skip)
{
g_pVideoData += skip;
#ifdef DATAREADER_DEBUG
g_pDataReader->Skip(skip);
DATAREADER_DEBUG_CHECK_PTR;
#endif
}
#else
inline u8 DataReadU8()
{
u8 tmp = g_pDataReader->Read8();
return tmp;
}
inline u16 DataReadU16()
{
u16 tmp = g_pDataReader->Read16();
return tmp;
}
inline u32 DataReadU32()
{
u32 tmp = g_pDataReader->Read32();
return tmp;
}
inline float DataReadF32()
{
u32 tmp2 = g_pDataReader->Read32();
float tmp = *(float*)(&tmp2);
return tmp;
}
inline void DataSkip(u32 skip)
{
g_pDataReader->Skip(skip);
}
#endif
#endif