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| 1 // Copyright 2011 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 CC_PROGRAM_BINDING_H_ | |
| 6 #define CC_PROGRAM_BINDING_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/logging.h" | |
| 11 | |
| 12 namespace WebKit { class WebGraphicsContext3D; } | |
| 13 | |
| 14 namespace cc { | |
| 15 | |
| 16 class ProgramBindingBase { | |
| 17 public: | |
| 18 ProgramBindingBase(); | |
| 19 ~ProgramBindingBase(); | |
| 20 | |
| 21 void Init(WebKit::WebGraphicsContext3D* context, | |
| 22 const std::string& vertex_shader, | |
| 23 const std::string& fragment_shader); | |
| 24 void Link(WebKit::WebGraphicsContext3D* context); | |
| 25 void Cleanup(WebKit::WebGraphicsContext3D* context); | |
| 26 | |
| 27 unsigned program() const { return program_; } | |
| 28 bool initialized() const { return initialized_; } | |
| 29 | |
| 30 protected: | |
| 31 unsigned LoadShader(WebKit::WebGraphicsContext3D* context, | |
| 32 unsigned type, | |
| 33 const std::string& shader_source); | |
| 34 unsigned CreateShaderProgram(WebKit::WebGraphicsContext3D* context, | |
| 35 unsigned vertex_shader, | |
| 36 unsigned fragment_shader); | |
| 37 void CleanupShaders(WebKit::WebGraphicsContext3D* context); | |
| 38 bool IsContextLost(WebKit::WebGraphicsContext3D* context); | |
| 39 | |
| 40 unsigned program_; | |
| 41 unsigned vertex_shader_id_; | |
| 42 unsigned fragment_shader_id_; | |
| 43 bool initialized_; | |
| 44 }; | |
| 45 | |
| 46 template <class VertexShader, class FragmentShader> | |
| 47 class ProgramBinding : public ProgramBindingBase { | |
| 48 public: | |
| 49 explicit ProgramBinding(WebKit::WebGraphicsContext3D* context) { | |
| 50 ProgramBindingBase::Init(context, | |
| 51 vertex_shader_.getShaderString(), | |
| 52 fragment_shader_.getShaderString()); | |
| 53 } | |
| 54 | |
| 55 void Initialize(WebKit::WebGraphicsContext3D* context, | |
| 56 bool using_bind_uniform) { | |
| 57 DCHECK(context); | |
| 58 DCHECK(!initialized_); | |
| 59 | |
| 60 if (IsContextLost(context)) | |
| 61 return; | |
| 62 | |
| 63 // Need to bind uniforms before linking | |
| 64 if (!using_bind_uniform) | |
| 65 Link(context); | |
| 66 | |
| 67 int base_uniform_index = 0; | |
| 68 vertex_shader_.init( | |
| 69 context, program_, using_bind_uniform, &base_uniform_index); | |
| 70 fragment_shader_.init( | |
| 71 context, program_, using_bind_uniform, &base_uniform_index); | |
| 72 | |
| 73 // Link after binding uniforms | |
| 74 if (using_bind_uniform) | |
| 75 Link(context); | |
| 76 | |
| 77 initialized_ = true; | |
| 78 } | |
| 79 | |
| 80 const VertexShader& vertex_shader() const { return vertex_shader_; } | |
| 81 const FragmentShader& fragment_shader() const { return fragment_shader_; } | |
| 82 | |
| 83 private: | |
| 84 VertexShader vertex_shader_; | |
| 85 FragmentShader fragment_shader_; | |
| 86 }; | |
| 87 | |
| 88 } // namespace cc | |
| 89 | |
| 90 #endif // CC_PROGRAM_BINDING_H_ | |
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Chromium Code Reviews
Issue 12912006:
Part 4 of cc/ directory shuffles: output (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src