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      1 //
      2 // Copyright (c) 2012 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.
      5 //
      6 
      7 // Image11.h: Defines the rx::Image11 class, which acts as the interface to
      8 // the actual underlying resources of a Texture
      9 
     10 #ifndef LIBGLESV2_RENDERER_IMAGE11_H_
     11 #define LIBGLESV2_RENDERER_IMAGE11_H_
     12 
     13 #include "libGLESv2/renderer/Image.h"
     14 
     15 #include "common/debug.h"
     16 
     17 namespace gl
     18 {
     19 class Framebuffer;
     20 }
     21 
     22 namespace rx
     23 {
     24 class Renderer;
     25 class Renderer11;
     26 class TextureStorageInterface2D;
     27 class TextureStorageInterfaceCube;
     28 
     29 class Image11 : public Image
     30 {
     31   public:
     32     Image11();
     33     virtual ~Image11();
     34 
     35     static Image11 *makeImage11(Image *img);
     36 
     37     static void generateMipmap(GLuint clientVersion, Image11 *dest, Image11 *src);
     38 
     39     virtual bool isDirty() const;
     40 
     41     virtual bool copyToStorage(TextureStorageInterface2D *storage, int level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height);
     42     virtual bool copyToStorage(TextureStorageInterfaceCube *storage, int face, int level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height);
     43     virtual bool copyToStorage(TextureStorageInterface3D *storage, int level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth);
     44     virtual bool copyToStorage(TextureStorageInterface2DArray *storage, int level, GLint xoffset, GLint yoffset, GLint arrayLayer, GLsizei width, GLsizei height);
     45 
     46     virtual bool redefine(Renderer *renderer, GLenum target, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, bool forceRelease);
     47 
     48     DXGI_FORMAT getDXGIFormat() const;
     49 
     50     virtual void loadData(GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth,
     51                           GLint unpackAlignment, GLenum type, const void *input);
     52     virtual void loadCompressedData(GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth,
     53                                     const void *input);
     54 
     55     virtual void copy(GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height, gl::Framebuffer *source);
     56 
     57   protected:
     58     HRESULT map(D3D11_MAP mapType, D3D11_MAPPED_SUBRESOURCE *map);
     59     void unmap();
     60 
     61   private:
     62     DISALLOW_COPY_AND_ASSIGN(Image11);
     63 
     64     ID3D11Resource *getStagingTexture();
     65     unsigned int getStagingSubresource();
     66     void createStagingTexture();
     67 
     68     Renderer11 *mRenderer;
     69 
     70     DXGI_FORMAT mDXGIFormat;
     71     ID3D11Resource *mStagingTexture;
     72     unsigned int mStagingSubresource;
     73 };
     74 
     75 }
     76 
     77 #endif // LIBGLESV2_RENDERER_IMAGE11_H_
     78