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Side by Side Diff: gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h

Issue 9968113: Addition of GL_CHROMIUM_copy_texture extension. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Adding extension implementation files. Created 8 years, 8 months ago
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1 // Copyright (c) 2012 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_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_
6 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_
7
8 #include "gpu/command_buffer/service/gl_utils.h"
9
10 // This class encapsulates the resources required to implement the
11 // GL_CHROMIUM_copy_texture extension. The copy operation is performed
12 // via a blit to a framebuffer object.
13 class CopyTextureCHROMIUMResourceManager {
14 public:
15 CopyTextureCHROMIUMResourceManager() {}
16 ~CopyTextureCHROMIUMResourceManager();
17
18 void Initialize();
19
20 void DoCopyTexture(GLenum target,GLuint source_id, GLuint dest_id,
21 GLint level, bool flip_y, bool premultiply_alpha);
22
23 private:
24 void FreeResources();
25
26 static const int kNumShaders = 5;
27 static const int kNumPrograms = 4;
28 GLuint shaders_[kNumShaders];
29 GLuint programs_[kNumPrograms];
30 GLuint buffer_ids_[2];
31 GLuint framebuffer_;
32
33 GLuint position_locations_[kNumPrograms];
34 GLuint texture_coordinate_locations_[kNumPrograms];
35 GLuint sampler_locations_[kNumPrograms];
36
37 DISALLOW_COPY_AND_ASSIGN(CopyTextureCHROMIUMResourceManager);
38 };
39
40 #endif // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_
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