131 lines
5.0 KiB
C++
131 lines
5.0 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _FRAMEBUFFERMANAGER_D3D_H_
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#define _FRAMEBUFFERMANAGER_D3D_H_
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#include <list>
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#include "DX9_D3DBase.h"
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#include "../FramebufferManager.h"
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// On the GameCube, the game sends a request for the graphics processor to
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// transfer its internal EFB (Embedded Framebuffer) to an area in GameCube RAM
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// called the XFB (External Framebuffer). The size and location of the XFB is
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// decided at the time of the copy, and the format is always YUYV. The video
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// interface is given a pointer to the XFB, which will be decoded and
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// displayed on the TV.
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//
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// There are two ways for Dolphin to emulate this:
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//
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// Real XFB mode:
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//
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// Dolphin will behave like the GameCube and encode the EFB to
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// a portion of GameCube RAM. The emulated video interface will decode the data
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// for output to the screen.
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//
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// Advantages: Behaves exactly like the GameCube.
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// Disadvantages: Resolution will be limited.
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//
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// Virtual XFB mode:
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//
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// When a request is made to copy the EFB to an XFB, Dolphin
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// will remember the RAM location and size of the XFB in a Virtual XFB list.
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// The video interface will look up the XFB in the list and use the enhanced
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// data stored there, if available.
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//
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// Advantages: Enables high resolution graphics, better than real hardware.
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// Disadvantages: If the GameCube CPU writes directly to the XFB (which is
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// possible but uncommon), the Virtual XFB will not capture this information.
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// There may be multiple XFBs in GameCube RAM. This is the maximum number to
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// virtualize.
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namespace DX9
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{
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const int MAX_VIRTUAL_XFB = 8;
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inline bool addrRangesOverlap(u32 aLower, u32 aUpper, u32 bLower, u32 bUpper)
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{
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return !((aLower >= bUpper) || (bLower >= aUpper));
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}
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struct XFBSource : public XFBSourceBase
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{
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XFBSource() : texture(NULL) {}
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~XFBSource();
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void CopyEFB(const TargetRectangle& efbSource);
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LPDIRECT3DTEXTURE9 texture;
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};
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class FramebufferManager : public ::FramebufferManagerBase
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{
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public:
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FramebufferManager();
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~FramebufferManager();
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void CopyToXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc);
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XFBSourceBase *CreateXFBSource(unsigned int target_width, unsigned int target_height);
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static LPDIRECT3DTEXTURE9 GetEFBColorTexture(const EFBRectangle& sourceRc);
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static LPDIRECT3DTEXTURE9 GetEFBDepthTexture(const EFBRectangle& sourceRc);
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static LPDIRECT3DSURFACE9 GetEFBColorRTSurface();
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static LPDIRECT3DSURFACE9 GetEFBDepthRTSurface();
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static LPDIRECT3DSURFACE9 GetEFBColorOffScreenRTSurface();
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static LPDIRECT3DSURFACE9 GetEFBDepthOffScreenRTSurface();
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static D3DFORMAT GetEFBDepthRTSurfaceFormat();
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static D3DFORMAT GetEFBColorRTSurfaceFormat();
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static D3DFORMAT GetEFBDepthReadSurfaceFormat();
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static LPDIRECT3DSURFACE9 GetEFBColorReadSurface();
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static LPDIRECT3DSURFACE9 GetEFBDepthReadSurface();
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private:
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void copyToRealXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc);
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void copyToVirtualXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc);
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const XFBSource** getRealXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32 &xfbCount);
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static XFBSource m_realXFBSource; // Only used in Real XFB mode
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const XFBSource* m_overlappingXFBArray[MAX_VIRTUAL_XFB];
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static LPDIRECT3DTEXTURE9 s_efb_color_texture;//Texture thats contains the color data of the render target
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static LPDIRECT3DTEXTURE9 s_efb_colorRead_texture;//1 pixel texture for temporal data store
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static LPDIRECT3DTEXTURE9 s_efb_depth_texture;//Texture thats contains the depth data of the render target
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static LPDIRECT3DTEXTURE9 s_efb_depthRead_texture;//4 pixel texture for temporal data store
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static LPDIRECT3DSURFACE9 s_efb_depth_surface;//Depth Surface
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static LPDIRECT3DSURFACE9 s_efb_color_surface;//Color Surface
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static LPDIRECT3DSURFACE9 s_efb_color_ReadBuffer;//Surface 0 of s_efb_colorRead_texture
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static LPDIRECT3DSURFACE9 s_efb_depth_ReadBuffer;//Surface 0 of s_efb_depthRead_texture
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static LPDIRECT3DSURFACE9 s_efb_color_OffScreenReadBuffer;//System memory Surface that can be locked to retriebe the data
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static LPDIRECT3DSURFACE9 s_efb_depth_OffScreenReadBuffer;//System memory Surface that can be locked to retriebe the data
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static D3DFORMAT s_efb_color_surface_Format;//Format of the color Surface
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static D3DFORMAT s_efb_depth_surface_Format;//Format of the Depth Surface
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static D3DFORMAT s_efb_depth_ReadBuffer_Format;//Format of the Depth color Read Surface
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};
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}
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#endif
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