2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
7 // Blit.cpp: Surface copy utility class.
9 #ifndef LIBGLESV2_BLIT_H_
10 #define LIBGLESV2_BLIT_H_
15 #include <GLES2/gl2.h>
19 #include "common/angleutils.h"
28 explicit Blit(Context *context);
31 // Copy from source surface to dest surface.
32 // sourceRect, xoffset, yoffset are in D3D coordinates (0,0 in upper-left)
33 bool copy(IDirect3DSurface9 *source, const RECT &sourceRect, GLenum destFormat, GLint xoffset, GLint yoffset, IDirect3DSurface9 *dest);
35 // Copy from source surface to dest surface.
36 // sourceRect, xoffset, yoffset are in D3D coordinates (0,0 in upper-left)
37 // 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.
38 bool formatConvert(IDirect3DSurface9 *source, const RECT &sourceRect, GLenum destFormat, GLint xoffset, GLint yoffset, IDirect3DSurface9 *dest);
40 // 2x2 box filter sample from source to dest.
41 // Requires that source is RGB(A) and dest has the same format as source.
42 bool boxFilter(IDirect3DSurface9 *source, IDirect3DSurface9 *dest);
47 IDirect3DVertexBuffer9 *mQuadVertexBuffer;
48 IDirect3DVertexDeclaration9 *mQuadVertexDeclaration;
52 bool setFormatConvertShaders(GLenum destFormat);
54 IDirect3DTexture9 *copySurfaceToTexture(IDirect3DSurface9 *surface, const RECT &sourceRect);
55 void setViewport(const RECT &sourceRect, GLint xoffset, GLint yoffset);
56 void setCommonBlitState();
57 RECT getSurfaceRect(IDirect3DSurface9 *surface) const;
59 // This enum is used to index mCompiledShaders and mShaderSource.
64 SHADER_PS_PASSTHROUGH,
66 SHADER_PS_COMPONENTMASK,
70 static const char * const mShaderSource[];
72 // This actually contains IDirect3DVertexShader9 or IDirect3DPixelShader9 casted to IUnknown.
73 IUnknown *mCompiledShaders[SHADER_COUNT];
75 template <class D3DShaderType>
76 bool setShader(ShaderId source, const char *profile,
77 HRESULT (WINAPI IDirect3DDevice9::*createShader)(const DWORD *, D3DShaderType **),
78 HRESULT (WINAPI IDirect3DDevice9::*setShader)(D3DShaderType*));
80 bool setVertexShader(ShaderId shader);
81 bool setPixelShader(ShaderId shader);
86 IDirect3DStateBlock9 *mSavedStateBlock;
87 IDirect3DSurface9 *mSavedRenderTarget;
88 IDirect3DSurface9 *mSavedDepthStencil;
90 DISALLOW_COPY_AND_ASSIGN(Blit);
94 #endif // LIBGLESV2_BLIT_H_