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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef GPU_COMMAND_BUFFER_SERVICE_SHADER_TRANSLATOR_H_ | 5 #ifndef GPU_COMMAND_BUFFER_SERVICE_SHADER_TRANSLATOR_H_ |
6 #define GPU_COMMAND_BUFFER_SERVICE_SHADER_TRANSLATOR_H_ | 6 #define GPU_COMMAND_BUFFER_SERVICE_SHADER_TRANSLATOR_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
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24 typedef base::hash_map<std::string, sh::Varying> VaryingMap; | 24 typedef base::hash_map<std::string, sh::Varying> VaryingMap; |
25 // Mapping between hashed name and original name. | 25 // Mapping between hashed name and original name. |
26 typedef base::hash_map<std::string, std::string> NameMap; | 26 typedef base::hash_map<std::string, std::string> NameMap; |
27 | 27 |
28 // Translates a GLSL ES 2.0 shader to desktop GLSL shader, or just | 28 // Translates a GLSL ES 2.0 shader to desktop GLSL shader, or just |
29 // validates GLSL ES 2.0 shaders on a true GLSL ES implementation. | 29 // validates GLSL ES 2.0 shaders on a true GLSL ES implementation. |
30 class ShaderTranslatorInterface | 30 class ShaderTranslatorInterface |
31 : public base::RefCounted<ShaderTranslatorInterface> { | 31 : public base::RefCounted<ShaderTranslatorInterface> { |
32 public: | 32 public: |
33 ShaderTranslatorInterface() {} | 33 ShaderTranslatorInterface() {} |
34 enum GlslImplementationType { | |
35 kGlsl, | |
36 kGlslES | |
37 }; | |
38 | 34 |
39 // Initializes the translator. | 35 // Initializes the translator. |
40 // Must be called once before using the translator object. | 36 // Must be called once before using the translator object. |
41 virtual bool Init( | 37 virtual bool Init(sh::GLenum shader_type, |
42 sh::GLenum shader_type, | 38 ShShaderSpec shader_spec, |
43 ShShaderSpec shader_spec, | 39 const ShBuiltInResources* resources, |
44 const ShBuiltInResources* resources, | 40 ShShaderOutput shader_output_language, |
45 GlslImplementationType glsl_implementation_type, | 41 ShCompileOptions driver_bug_workarounds) = 0; |
46 ShCompileOptions driver_bug_workarounds) = 0; | |
47 | 42 |
48 // Translates the given shader source. | 43 // Translates the given shader source. |
49 // Returns true if translation is successful, false otherwise. | 44 // Returns true if translation is successful, false otherwise. |
50 // Always fill |info_log| if it's non-null. | 45 // Always fill |info_log| if it's non-null. |
51 // Upon success, fill |translated_shader|, |attrib_map|, |uniform_map|, | 46 // Upon success, fill |translated_shader|, |attrib_map|, |uniform_map|, |
52 // |varying_map|, and |name_map| if they are non-null. | 47 // |varying_map|, and |name_map| if they are non-null. |
53 virtual bool Translate(const std::string& shader_source, | 48 virtual bool Translate(const std::string& shader_source, |
54 std::string* info_log, | 49 std::string* info_log, |
55 std::string* translated_shader, | 50 std::string* translated_shader, |
56 int* shader_version, | 51 int* shader_version, |
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85 private: | 80 private: |
86 DISALLOW_COPY_AND_ASSIGN(DestructionObserver); | 81 DISALLOW_COPY_AND_ASSIGN(DestructionObserver); |
87 }; | 82 }; |
88 | 83 |
89 ShaderTranslator(); | 84 ShaderTranslator(); |
90 | 85 |
91 // Overridden from ShaderTranslatorInterface. | 86 // Overridden from ShaderTranslatorInterface. |
92 bool Init(sh::GLenum shader_type, | 87 bool Init(sh::GLenum shader_type, |
93 ShShaderSpec shader_spec, | 88 ShShaderSpec shader_spec, |
94 const ShBuiltInResources* resources, | 89 const ShBuiltInResources* resources, |
95 GlslImplementationType glsl_implementation_type, | 90 ShShaderOutput shader_output_language, |
96 ShCompileOptions driver_bug_workarounds) override; | 91 ShCompileOptions driver_bug_workarounds) override; |
97 | 92 |
98 // Overridden from ShaderTranslatorInterface. | 93 // Overridden from ShaderTranslatorInterface. |
99 bool Translate(const std::string& shader_source, | 94 bool Translate(const std::string& shader_source, |
100 std::string* info_log, | 95 std::string* info_log, |
101 std::string* translated_source, | 96 std::string* translated_source, |
102 int* shader_version, | 97 int* shader_version, |
103 AttributeMap* attrib_map, | 98 AttributeMap* attrib_map, |
104 UniformMap* uniform_map, | 99 UniformMap* uniform_map, |
105 VaryingMap* varying_map, | 100 VaryingMap* varying_map, |
106 NameMap* name_map) const override; | 101 NameMap* name_map) const override; |
107 | 102 |
108 std::string GetStringForOptionsThatWouldAffectCompilation() const override; | 103 std::string GetStringForOptionsThatWouldAffectCompilation() const override; |
109 | 104 |
110 void AddDestructionObserver(DestructionObserver* observer); | 105 void AddDestructionObserver(DestructionObserver* observer); |
111 void RemoveDestructionObserver(DestructionObserver* observer); | 106 void RemoveDestructionObserver(DestructionObserver* observer); |
112 | 107 |
113 private: | 108 private: |
114 ~ShaderTranslator() override; | 109 ~ShaderTranslator() override; |
115 | 110 |
116 int GetCompileOptions() const; | 111 int GetCompileOptions() const; |
117 | 112 |
118 ShHandle compiler_; | 113 ShHandle compiler_; |
119 bool implementation_is_glsl_es_; | |
120 ShCompileOptions driver_bug_workarounds_; | 114 ShCompileOptions driver_bug_workarounds_; |
121 base::ObserverList<DestructionObserver> destruction_observers_; | 115 base::ObserverList<DestructionObserver> destruction_observers_; |
122 }; | 116 }; |
123 | 117 |
124 } // namespace gles2 | 118 } // namespace gles2 |
125 } // namespace gpu | 119 } // namespace gpu |
126 | 120 |
127 #endif // GPU_COMMAND_BUFFER_SERVICE_SHADER_TRANSLATOR_H_ | 121 #endif // GPU_COMMAND_BUFFER_SERVICE_SHADER_TRANSLATOR_H_ |
128 | 122 |
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