michael@0: //
michael@0: // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // Blit.cpp: Surface copy utility class.
michael@0: 
michael@0: #ifndef LIBGLESV2_BLIT_H_
michael@0: #define LIBGLESV2_BLIT_H_
michael@0: 
michael@0: #include "common/angleutils.h"
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: class Framebuffer;
michael@0: }
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: class Renderer9;
michael@0: class TextureStorageInterface2D;
michael@0: class TextureStorageInterfaceCube;
michael@0: 
michael@0: class Blit
michael@0: {
michael@0:   public:
michael@0:     explicit Blit(Renderer9 *renderer);
michael@0:     ~Blit();
michael@0: 
michael@0:     // Copy from source surface to dest surface.
michael@0:     // sourceRect, xoffset, yoffset are in D3D coordinates (0,0 in upper-left)
michael@0:     bool copy(gl::Framebuffer *framebuffer, const RECT &sourceRect, GLenum destFormat, GLint xoffset, GLint yoffset, TextureStorageInterface2D *storage, GLint level);
michael@0:     bool copy(gl::Framebuffer *framebuffer, const RECT &sourceRect, GLenum destFormat, GLint xoffset, GLint yoffset, TextureStorageInterfaceCube *storage, GLenum target, GLint level);
michael@0: 
michael@0:     // Copy from source surface to dest surface.
michael@0:     // sourceRect, xoffset, yoffset are in D3D coordinates (0,0 in upper-left)
michael@0:     // source is interpreted as RGBA and destFormat specifies the desired result format. For example, if destFormat = GL_RGB, the alpha channel will be forced to 0.
michael@0:     bool formatConvert(IDirect3DSurface9 *source, const RECT &sourceRect, GLenum destFormat, GLint xoffset, GLint yoffset, IDirect3DSurface9 *dest);
michael@0: 
michael@0:     // 2x2 box filter sample from source to dest.
michael@0:     // Requires that source is RGB(A) and dest has the same format as source.
michael@0:     bool boxFilter(IDirect3DSurface9 *source, IDirect3DSurface9 *dest);
michael@0: 
michael@0:   private:
michael@0:     rx::Renderer9 *mRenderer;
michael@0: 
michael@0:     IDirect3DVertexBuffer9 *mQuadVertexBuffer;
michael@0:     IDirect3DVertexDeclaration9 *mQuadVertexDeclaration;
michael@0: 
michael@0:     void initGeometry();
michael@0: 
michael@0:     bool setFormatConvertShaders(GLenum destFormat);
michael@0: 
michael@0:     bool copy(IDirect3DSurface9 *source, const RECT &sourceRect, GLenum destFormat, GLint xoffset, GLint yoffset, IDirect3DSurface9 *dest);
michael@0:     IDirect3DTexture9 *copySurfaceToTexture(IDirect3DSurface9 *surface, const RECT &sourceRect);
michael@0:     void setViewport(const RECT &sourceRect, GLint xoffset, GLint yoffset);
michael@0:     void setCommonBlitState();
michael@0:     RECT getSurfaceRect(IDirect3DSurface9 *surface) const;
michael@0: 
michael@0:     // This enum is used to index mCompiledShaders and mShaderSource.
michael@0:     enum ShaderId
michael@0:     {
michael@0:         SHADER_VS_STANDARD,
michael@0:         SHADER_VS_FLIPY,
michael@0:         SHADER_PS_PASSTHROUGH,
michael@0:         SHADER_PS_LUMINANCE,
michael@0:         SHADER_PS_COMPONENTMASK,
michael@0:         SHADER_COUNT
michael@0:     };
michael@0: 
michael@0:     // This actually contains IDirect3DVertexShader9 or IDirect3DPixelShader9 casted to IUnknown.
michael@0:     IUnknown *mCompiledShaders[SHADER_COUNT];
michael@0: 
michael@0:     template <class D3DShaderType>
michael@0:     bool setShader(ShaderId source, const char *profile,
michael@0:                    D3DShaderType *(Renderer9::*createShader)(const DWORD *, size_t length),
michael@0:                    HRESULT (WINAPI IDirect3DDevice9::*setShader)(D3DShaderType*));
michael@0: 
michael@0:     bool setVertexShader(ShaderId shader);
michael@0:     bool setPixelShader(ShaderId shader);
michael@0:     void render();
michael@0: 
michael@0:     void saveState();
michael@0:     void restoreState();
michael@0:     IDirect3DStateBlock9 *mSavedStateBlock;
michael@0:     IDirect3DSurface9 *mSavedRenderTarget;
michael@0:     IDirect3DSurface9 *mSavedDepthStencil;
michael@0: 
michael@0:     DISALLOW_COPY_AND_ASSIGN(Blit);
michael@0: };
michael@0: }
michael@0: 
michael@0: #endif   // LIBGLESV2_BLIT_H_