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1 #ifndef _VKTSHADEREXECUTOR_HPP
2 #define _VKTSHADEREXECUTOR_HPP
3 /*------------------------------------------------------------------------
4  * Vulkan Conformance Tests
5  * ------------------------
6  *
7  * Copyright (c) 2015 The Khronos Group Inc.
8  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
9  *
10  * Licensed under the Apache License, Version 2.0 (the "License");
11  * you may not use this file except in compliance with the License.
12  * You may obtain a copy of the License at
13  *
14  *      http://www.apache.org/licenses/LICENSE-2.0
15  *
16  * Unless required by applicable law or agreed to in writing, software
17  * distributed under the License is distributed on an "AS IS" BASIS,
18  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  * See the License for the specific language governing permissions and
20  * limitations under the License.
21  *
22  *//*!
23  * \file
24  * \brief Vulkan ShaderExecutor
25  *//*--------------------------------------------------------------------*/
26 
27 #include "tcuDefs.hpp"
28 #include "vktTestCase.hpp"
29 #include "gluVarType.hpp"
30 #include "vkGlslProgram.hpp"
31 
32 #include <vector>
33 #include <string>
34 
35 namespace vkt
36 {
37 namespace shaderexecutor
38 {
39 
40 //! Shader input / output variable declaration.
41 struct Symbol
42 {
43 	std::string				name;		//!< Symbol name.
44 	glu::VarType			varType;	//!< Symbol type.
45 
Symbolvkt::shaderexecutor::Symbol46 	Symbol (void) {}
Symbolvkt::shaderexecutor::Symbol47 	Symbol (const std::string& name_, const glu::VarType& varType_) : name(name_), varType(varType_) {}
48 };
49 
50 //! Complete shader specification.
51 struct ShaderSpec
52 {
53 	glu::GLSLVersion		glslVersion;
54 	std::vector<Symbol>		inputs;
55 	std::vector<Symbol>		outputs;
56 	std::string				globalDeclarations;	//!< These are placed into global scope. Can contain uniform declarations for example.
57 	std::string				source;				//!< Source snippet to be executed.
58 	vk::GlslBuildOptions	buildOptions;
59 
ShaderSpecvkt::shaderexecutor::ShaderSpec60 	ShaderSpec (void)
61 		: glslVersion(glu::GLSL_VERSION_310_ES)
62 	{}
63 };
64 
65 enum
66 {
67 	//!< Descriptor set index for additional resources
68 	EXTRA_RESOURCES_DESCRIPTOR_SET_INDEX		= 1,
69 };
70 
71 //! Base class for shader executor.
72 class ShaderExecutor
73 {
74 public:
75 	virtual					~ShaderExecutor		(void);
76 
77 	//! Execute
78 	virtual void			execute				(int numValues, const void* const* inputs, void* const* outputs, vk::VkDescriptorSet extraResources = (vk::VkDescriptorSet)0) = 0;
79 
80 protected:
ShaderExecutor(Context & context,const ShaderSpec & shaderSpec)81 							ShaderExecutor		(Context& context, const ShaderSpec& shaderSpec)
82 								: m_context		(context)
83 								, m_shaderSpec	(shaderSpec)
84 							{}
85 
86 	Context&				m_context;
87 	const ShaderSpec		m_shaderSpec;
88 
89 private:
90 							ShaderExecutor		(const ShaderExecutor&);
91 	ShaderExecutor&			operator=			(const ShaderExecutor&);
92 };
93 
94 void				generateSources		(glu::ShaderType shaderType, const ShaderSpec& shaderSpec, vk::SourceCollections& dst);
95 ShaderExecutor*		createExecutor		(Context& context, glu::ShaderType shaderType, const ShaderSpec& shaderSpec, vk::VkDescriptorSetLayout extraResourcesLayout = (vk::VkDescriptorSetLayout)0);
96 
97 } // shaderexecutor
98 } // vkt
99 
100 #endif // _VKTSHADEREXECUTOR_HPP
101