1 // Copyright 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.
5 #ifndef GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
6 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_
10 #include "base/memory/ref_counted.h"
11 #include "gpu/command_buffer/service/gl_utils.h"
22 class NativeImageBuffer : public base::RefCountedThreadSafe<NativeImageBuffer> {
24 static scoped_refptr<NativeImageBuffer> Create(GLuint texture_id);
26 virtual void AddClient(gfx::GLImage* client) = 0;
27 virtual void RemoveClient(gfx::GLImage* client) = 0;
28 virtual bool IsClient(gfx::GLImage* client) = 0;
29 virtual void BindToTexture(GLenum target) = 0;
30 virtual void WillRead(gfx::GLImage* client) = 0;
31 virtual void WillWrite(gfx::GLImage* client) = 0;
32 virtual void DidRead(gfx::GLImage* client) = 0;
33 virtual void DidWrite(gfx::GLImage* client) = 0;
36 friend class base::RefCountedThreadSafe<NativeImageBuffer>;
37 NativeImageBuffer() {}
38 virtual ~NativeImageBuffer() {}
40 DISALLOW_COPY_AND_ASSIGN(NativeImageBuffer);
43 // An immutable description that can be used to create a texture that shares
44 // the underlying image buffer(s).
45 class TextureDefinition {
47 TextureDefinition(GLenum target,
50 const scoped_refptr<NativeImageBuffer>& image);
51 virtual ~TextureDefinition();
53 Texture* CreateTexture() const;
54 void UpdateTexture(Texture* texture) const;
56 unsigned int version() const { return version_; }
57 bool IsOlderThan(unsigned int version) const {
58 return (version - version_) < 0x80000000;
60 bool Matches(const Texture* texture) const;
62 scoped_refptr<NativeImageBuffer> image() { return image_buffer_; }
66 LevelInfo(GLenum target,
67 GLenum internal_format,
78 GLenum internal_format;
88 typedef std::vector<std::vector<LevelInfo> > LevelInfos;
90 unsigned int version_;
92 scoped_refptr<NativeImageBuffer> image_buffer_;
99 LevelInfos level_infos_;
105 #endif // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_DEFINITION_H_