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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 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 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 IsNewerThan(unsigned int version) const { | |
80 return (int)(version_ - version) > 0; | |
piman
2014/03/13 04:41:58
int overflow = undefined. I'm afraid the compiler
no sievers
2014/03/13 20:50:15
Done. Inverted, since you pointed out that 'equal'
piman
2014/03/13 23:29:06
Why can't we skip for Pull?
| |
81 } | |
82 bool Matches(const Texture* texture) const; | |
83 | |
84 scoped_refptr<NativeImageBuffer> image() { return image_; } | |
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_; | |
piman
2014/03/13 04:41:58
nit: image_buffer_ maybe? The callsites are confus
no sievers
2014/03/13 20:50:15
Done.
| |
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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