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1 //
2 // Copyright 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 LIBANGLE_RENDERER_D3D_D3D11_IMAGE11_H_
11 #define LIBANGLE_RENDERER_D3D_D3D11_IMAGE11_H_
12 
13 #include "common/debug.h"
14 #include "libANGLE/ImageIndex.h"
15 #include "libANGLE/renderer/d3d/ImageD3D.h"
16 #include "libANGLE/renderer/d3d/d3d11/MappedSubresourceVerifier11.h"
17 #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
18 
19 namespace gl
20 {
21 class Framebuffer;
22 }
23 
24 namespace d3d11
25 {
26 template <typename T>
27 class ScopedUnmapper;
28 }  // namespace d3d11
29 
30 namespace rx
31 {
32 class Renderer11;
33 class TextureHelper11;
34 class TextureStorage11;
35 struct Renderer11DeviceCaps;
36 
37 class Image11 : public ImageD3D
38 {
39   public:
40     Image11(Renderer11 *renderer);
41     ~Image11() override;
42 
43     static angle::Result GenerateMipmap(const gl::Context *context,
44                                         Image11 *dest,
45                                         Image11 *src,
46                                         const Renderer11DeviceCaps &rendererCaps);
47     static angle::Result CopyImage(const gl::Context *context,
48                                    Image11 *dest,
49                                    Image11 *source,
50                                    const gl::Box &sourceBox,
51                                    const gl::Offset &destOffset,
52                                    bool unpackFlipY,
53                                    bool unpackPremultiplyAlpha,
54                                    bool unpackUnmultiplyAlpha,
55                                    const Renderer11DeviceCaps &rendererCaps);
56 
57     bool isDirty() const override;
58 
59     angle::Result copyToStorage(const gl::Context *context,
60                                 TextureStorage *storage,
61                                 const gl::ImageIndex &index,
62                                 const gl::Box &region) override;
63 
64     bool redefine(gl::TextureType type,
65                   GLenum internalformat,
66                   const gl::Extents &size,
67                   bool forceRelease) override;
68 
69     DXGI_FORMAT getDXGIFormat() const;
70 
71     angle::Result loadData(const gl::Context *context,
72                            const gl::Box &area,
73                            const gl::PixelUnpackState &unpack,
74                            GLenum type,
75                            const void *input,
76                            bool applySkipImages) override;
77     angle::Result loadCompressedData(const gl::Context *context,
78                                      const gl::Box &area,
79                                      const void *input) override;
80 
81     angle::Result copyFromTexStorage(const gl::Context *context,
82                                      const gl::ImageIndex &imageIndex,
83                                      TextureStorage *source) override;
84     angle::Result copyFromFramebuffer(const gl::Context *context,
85                                       const gl::Offset &destOffset,
86                                       const gl::Rectangle &sourceArea,
87                                       const gl::Framebuffer *source) override;
88 
89     angle::Result recoverFromAssociatedStorage(const gl::Context *context);
90     void verifyAssociatedStorageValid(TextureStorage11 *textureStorageEXT) const;
91     void disassociateStorage();
92 
93     angle::Result getStagingTexture(const gl::Context *context,
94                                     const TextureHelper11 **outStagingTexture,
95                                     unsigned int *outSubresourceIndex);
96 
97   protected:
98     template <typename T>
99     friend class d3d11::ScopedUnmapper;
100     angle::Result map(const gl::Context *context, D3D11_MAP mapType, D3D11_MAPPED_SUBRESOURCE *map);
101     void unmap();
102 
103   private:
104     angle::Result copyWithoutConversion(const gl::Context *context,
105                                         const gl::Offset &destOffset,
106                                         const gl::Box &sourceArea,
107                                         const TextureHelper11 &textureHelper,
108                                         UINT sourceSubResource);
109 
110     angle::Result createStagingTexture(const gl::Context *context);
111     void releaseStagingTexture();
112 
113     Renderer11 *mRenderer;
114 
115     DXGI_FORMAT mDXGIFormat;
116     TextureHelper11 mStagingTexture;
117     unsigned int mStagingSubresource;
118     MappedSubresourceVerifier11 mStagingTextureSubresourceVerifier;
119 
120     bool mRecoverFromStorage;
121     TextureStorage11 *mAssociatedStorage;
122     gl::ImageIndex mAssociatedImageIndex;
123     unsigned int mRecoveredFromStorageCount;
124 };
125 
126 }  // namespace rx
127 
128 #endif  // LIBANGLE_RENDERER_D3D_D3D11_IMAGE11_H_
129