dolphin/Source/Plugins/Plugin_VideoSoftware/Src/SWPixelEngine.h

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// Copyright (C) 2003-2009 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 _PIXELENGINE_H
#define _PIXELENGINE_H
#include "Common.h"
#include "VideoCommon.h"
class PointerWrap;
namespace SWPixelEngine
{
// internal hardware addresses
enum
{
PE_ZCONF = 0x000, // Z Config
PE_ALPHACONF = 0x002, // Alpha Config
PE_DSTALPHACONF = 0x004, // Destination Alpha Config
PE_ALPHAMODE = 0x006, // Alpha Mode Config
PE_ALPHAREAD = 0x008, // Alpha Read
PE_CTRL_REGISTER = 0x00a, // Control
PE_TOKEN_REG = 0x00e, // Token
PE_BBOX_LEFT = 0x010, // Flip Left
PE_BBOX_RIGHT = 0x012, // Flip Right
PE_BBOX_TOP = 0x014, // Flip Top
PE_BBOX_BOTTOM = 0x016, // Flip Bottom
};
union UPEZConfReg
{
u16 Hex;
struct
{
u16 ZCompEnable : 1; // Z Comparator Enable
u16 Function : 3;
u16 ZUpdEnable : 1;
u16 : 11;
};
};
union UPEAlphaConfReg
{
u16 Hex;
struct
{
u16 BMMath : 1; // GX_BM_BLEND || GX_BM_SUBSTRACT
u16 BMLogic : 1; // GX_BM_LOGIC
u16 Dither : 1;
u16 ColorUpdEnable : 1;
u16 AlphaUpdEnable : 1;
u16 DstFactor : 3;
u16 SrcFactor : 3;
u16 Substract : 1; // Additive mode by default
u16 BlendOperator : 4;
};
};
union UPEDstAlphaConfReg
{
u16 Hex;
struct
{
u16 DstAlpha : 8;
u16 Enable : 1;
u16 : 7;
};
};
union UPEAlphaModeConfReg
{
u16 Hex;
struct
{
u16 Threshold : 8;
u16 CompareMode : 8;
};
};
union UPEAlphaReadReg
{
u16 Hex;
struct
{
u16 ReadMode : 3;
u16 : 13;
};
};
union UPECtrlReg
{
struct
{
u16 PETokenEnable : 1;
u16 PEFinishEnable : 1;
u16 PEToken : 1; // write only
u16 PEFinish : 1; // write only
u16 : 12;
};
u16 Hex;
UPECtrlReg() {Hex = 0; }
UPECtrlReg(u16 _hex) {Hex = _hex; }
};
struct PEReg
{
UPEZConfReg zconf;
UPEAlphaConfReg alphaConf;
UPEDstAlphaConfReg dstAlpha;
UPEAlphaModeConfReg alphaMode;
UPEAlphaReadReg alphaRead;
UPECtrlReg ctrl;
u16 unk0;
u16 token;
u16 boxLeft;
u16 boxRight;
u16 boxTop;
u16 boxBottom;
};
extern PEReg pereg;
void Init();
void DoState(PointerWrap &p);
// Read
void Read16(u16& _uReturnValue, const u32 _iAddress);
// Write
void Write16(const u16 _iValue, const u32 _iAddress);
void Write32(const u32 _iValue, const u32 _iAddress);
// gfx backend support
void SetToken(const u16 _token, const int _bSetTokenAcknowledge);
void SetFinish(void);
bool AllowIdleSkipping();
} // end of namespace SWPixelEngine
#endif