1 //
2 // Copyright 2002 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 // TextureStorage.h: Defines the abstract rx::TextureStorage class.
8
9 #ifndef LIBANGLE_RENDERER_D3D_TEXTURESTORAGE_H_
10 #define LIBANGLE_RENDERER_D3D_TEXTURESTORAGE_H_
11
12 #include "common/debug.h"
13 #include "libANGLE/angletypes.h"
14
15 #include <GLES2/gl2.h>
16 #include <stdint.h>
17
18 namespace gl
19 {
20 class Context;
21 class ImageIndex;
22 struct Box;
23 struct PixelUnpackState;
24 } // namespace gl
25
26 namespace angle
27 {
28 class Subject;
29 } // namespace angle
30
31 namespace rx
32 {
33 class SwapChainD3D;
34 class RenderTargetD3D;
35 class ImageD3D;
36
37 // Dirty bit messages from TextureStorage
38 constexpr size_t kTextureStorageObserverMessageIndex = 0;
39
40 class TextureStorage : public angle::Subject
41 {
42 public:
TextureStorage(const std::string & label)43 TextureStorage(const std::string &label) : mKHRDebugLabel(label) {}
~TextureStorage()44 ~TextureStorage() override {}
45
46 virtual angle::Result onDestroy(const gl::Context *context);
47
48 virtual int getTopLevel() const = 0;
49 virtual bool isRenderTarget() const = 0;
50 virtual bool isUnorderedAccess() const = 0;
51 virtual bool isManaged() const = 0;
52 virtual bool supportsNativeMipmapFunction() const = 0;
53 virtual int getLevelCount() const = 0;
54
55 virtual bool isMultiplanar(const gl::Context *context) = 0;
56
57 virtual angle::Result findRenderTarget(const gl::Context *context,
58 const gl::ImageIndex &index,
59 GLsizei samples,
60 RenderTargetD3D **outRT) const = 0;
61 virtual angle::Result getRenderTarget(const gl::Context *context,
62 const gl::ImageIndex &index,
63 GLsizei samples,
64 RenderTargetD3D **outRT) = 0;
65 virtual angle::Result generateMipmap(const gl::Context *context,
66 const gl::ImageIndex &sourceIndex,
67 const gl::ImageIndex &destIndex) = 0;
68
69 virtual angle::Result copyToStorage(const gl::Context *context,
70 TextureStorage *destStorage) = 0;
71 virtual angle::Result setData(const gl::Context *context,
72 const gl::ImageIndex &index,
73 ImageD3D *image,
74 const gl::Box *destBox,
75 GLenum type,
76 const gl::PixelUnpackState &unpack,
77 const uint8_t *pixelData) = 0;
78
79 // This is a no-op for most implementations of TextureStorage. Some (e.g. TextureStorage11_2D)
80 // might override it.
81 virtual angle::Result useLevelZeroWorkaroundTexture(const gl::Context *context,
82 bool useLevelZeroTexture);
83
invalidateTextures()84 virtual void invalidateTextures() {}
85
86 // RenderToTexture methods
87 virtual angle::Result releaseMultisampledTexStorageForLevel(size_t level);
88 virtual angle::Result resolveTexture(const gl::Context *context);
89 virtual GLsizei getRenderToTextureSamples() const;
90
91 // Called by outer object when label has changed via KHR_debug extension
92 void setLabel(const std::string &newLabel);
93
94 protected:
onLabelUpdate()95 virtual void onLabelUpdate() {}
96
97 const angle::Subject *mSubject;
98 std::string mKHRDebugLabel;
99 };
100
onDestroy(const gl::Context * context)101 inline angle::Result TextureStorage::onDestroy(const gl::Context *context)
102 {
103 return angle::Result::Continue;
104 }
105
useLevelZeroWorkaroundTexture(const gl::Context * context,bool useLevelZeroTexture)106 inline angle::Result TextureStorage::useLevelZeroWorkaroundTexture(const gl::Context *context,
107 bool useLevelZeroTexture)
108 {
109 return angle::Result::Continue;
110 }
111
releaseMultisampledTexStorageForLevel(size_t level)112 inline angle::Result TextureStorage::releaseMultisampledTexStorageForLevel(size_t level)
113 {
114 return angle::Result::Continue;
115 }
116
resolveTexture(const gl::Context * context)117 inline angle::Result TextureStorage::resolveTexture(const gl::Context *context)
118 {
119 return angle::Result::Continue;
120 }
121
getRenderToTextureSamples()122 inline GLsizei TextureStorage::getRenderToTextureSamples() const
123 {
124 return 0;
125 }
126
setLabel(const std::string & newLabel)127 inline void TextureStorage::setLabel(const std::string &newLabel)
128 {
129 mKHRDebugLabel = newLabel;
130 onLabelUpdate();
131 }
132
133 using TexStoragePointer = angle::UniqueObjectPointer<TextureStorage, gl::Context>;
134
135 } // namespace rx
136
137 #endif // LIBANGLE_RENDERER_D3D_TEXTURESTORAGE_H_
138