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| 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_ |
| 6 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_ |
| 7 |
| 8 #include <list> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/callback.h" |
| 12 #include "base/memory/linked_ptr.h" |
| 13 #include "base/memory/ref_counted.h" |
| 14 #include "base/memory/scoped_ptr.h" |
| 15 #include "base/synchronization/lock.h" |
| 16 #include "gpu/command_buffer/service/gl_utils.h" |
| 17 #include "ui/gl/gl_fence.h" |
| 18 |
| 19 namespace gfx { |
| 20 class GLFence; |
| 21 class GLImage; |
| 22 } |
| 23 |
| 24 namespace gpu { |
| 25 namespace gles2 { |
| 26 |
| 27 class Texture; |
| 28 |
| 29 class NativeImageBuffer : public base::RefCountedThreadSafe<NativeImageBuffer> { |
| 30 public: |
| 31 static scoped_refptr<NativeImageBuffer> Create(GLuint texture_id); |
| 32 virtual void BindToTexture(GLenum target) = 0; |
| 33 |
| 34 void AddClient(gfx::GLImage* client); |
| 35 void RemoveClient(gfx::GLImage* client); |
| 36 bool IsClient(gfx::GLImage* client); |
| 37 |
| 38 void WillRead(gfx::GLImage* client); |
| 39 void WillWrite(gfx::GLImage* client); |
| 40 void DidRead(gfx::GLImage* client); |
| 41 void DidWrite(gfx::GLImage* client); |
| 42 |
| 43 protected: |
| 44 friend class base::RefCountedThreadSafe<NativeImageBuffer>; |
| 45 NativeImageBuffer(); |
| 46 virtual ~NativeImageBuffer(); |
| 47 |
| 48 base::Lock lock_; |
| 49 |
| 50 struct ClientInfo { |
| 51 ClientInfo(gfx::GLImage* client); |
| 52 ~ClientInfo(); |
| 53 |
| 54 gfx::GLImage* client; |
| 55 bool needs_wait_before_read; |
| 56 linked_ptr<gfx::GLFence> read_fence; |
| 57 }; |
| 58 std::list<ClientInfo> client_infos_; |
| 59 scoped_ptr<gfx::GLFence> write_fence_; |
| 60 gfx::GLImage* write_client_; |
| 61 |
| 62 DISALLOW_COPY_AND_ASSIGN(NativeImageBuffer); |
| 63 }; |
| 64 |
| 65 // An immutable description that can be used to create a texture that shares |
| 66 // the underlying image buffer(s). |
| 67 class TextureDefinition { |
| 68 public: |
| 69 TextureDefinition(GLenum target, |
| 70 Texture* texture, |
| 71 unsigned int version, |
| 72 const scoped_refptr<NativeImageBuffer>& image); |
| 73 virtual ~TextureDefinition(); |
| 74 |
| 75 Texture* CreateTexture() const; |
| 76 void UpdateTexture(Texture* texture) const; |
| 77 |
| 78 unsigned int version() const { return version_; } |
| 79 bool IsOlderThan(unsigned int version) const { |
| 80 return (version - version_) < 0x80000000; |
| 81 } |
| 82 bool Matches(const Texture* texture) const; |
| 83 |
| 84 scoped_refptr<NativeImageBuffer> image() { return image_buffer_; } |
| 85 |
| 86 private: |
| 87 struct LevelInfo { |
| 88 LevelInfo(GLenum target, |
| 89 GLenum internal_format, |
| 90 GLsizei width, |
| 91 GLsizei height, |
| 92 GLsizei depth, |
| 93 GLint border, |
| 94 GLenum format, |
| 95 GLenum type, |
| 96 bool cleared); |
| 97 ~LevelInfo(); |
| 98 |
| 99 GLenum target; |
| 100 GLenum internal_format; |
| 101 GLsizei width; |
| 102 GLsizei height; |
| 103 GLsizei depth; |
| 104 GLint border; |
| 105 GLenum format; |
| 106 GLenum type; |
| 107 bool cleared; |
| 108 }; |
| 109 |
| 110 typedef std::vector<std::vector<LevelInfo> > LevelInfos; |
| 111 |
| 112 unsigned int version_; |
| 113 GLenum target_; |
| 114 scoped_refptr<NativeImageBuffer> image_buffer_; |
| 115 GLenum min_filter_; |
| 116 GLenum mag_filter_; |
| 117 GLenum wrap_s_; |
| 118 GLenum wrap_t_; |
| 119 GLenum usage_; |
| 120 bool immutable_; |
| 121 LevelInfos level_infos_; |
| 122 }; |
| 123 |
| 124 } // namespage gles2 |
| 125 } // namespace gpu |
| 126 |
| 127 #endif // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_ |
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