1 #ifndef _GLSSHADEREXECUTIL_HPP
2 #define _GLSSHADEREXECUTIL_HPP
3 /*-------------------------------------------------------------------------
4 * drawElements Quality Program OpenGL (ES) Module
5 * -----------------------------------------------
6 *
7 * Copyright 2014 The Android Open Source Project
8 *
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 *
21 *//*!
22 * \file
23 * \brief Shader execution utilities.
24 *//*--------------------------------------------------------------------*/
25
26 #include "tcuDefs.hpp"
27 #include "gluVarType.hpp"
28 #include "gluShaderUtil.hpp"
29
30 namespace tcu
31 {
32 class TestLog;
33 }
34
35 namespace glu
36 {
37 class RenderContext;
38 }
39
40 namespace deqp
41 {
42 namespace gls
43 {
44 namespace ShaderExecUtil
45 {
46
47 //! Shader input / output variable declaration.
48 struct Symbol
49 {
50 std::string name; //!< Symbol name.
51 glu::VarType varType; //!< Symbol type.
52
Symboldeqp::gls::ShaderExecUtil::Symbol53 Symbol(void)
54 {
55 }
Symboldeqp::gls::ShaderExecUtil::Symbol56 Symbol(const std::string &name_, const glu::VarType &varType_) : name(name_), varType(varType_)
57 {
58 }
59 };
60
61 //! Complete shader specification.
62 struct ShaderSpec
63 {
64 glu::GLSLVersion version; //!< Shader version.
65 std::vector<Symbol> inputs;
66 std::vector<Symbol> outputs;
67 std::string
68 globalDeclarations; //!< These are placed into global scope. Can contain uniform declarations for example.
69 std::string source; //!< Source snippet to be executed.
70
ShaderSpecdeqp::gls::ShaderExecUtil::ShaderSpec71 ShaderSpec(void) : version(glu::GLSL_VERSION_300_ES)
72 {
73 }
74 };
75
76 //! Base class for shader executor.
77 class ShaderExecutor
78 {
79 public:
80 virtual ~ShaderExecutor(void);
81
82 //! Check if executor can be used.
83 virtual bool isOk(void) const = 0;
84
85 //! Log executor details (program etc.).
86 virtual void log(tcu::TestLog &log) const = 0;
87
88 //! Get program.
89 virtual uint32_t getProgram(void) const = 0;
90
91 //! Set this shader program current in context. Must be called before execute().
92 virtual void useProgram(void);
93
94 //! Execute active program. useProgram() must be called before this.
95 virtual void execute(int numValues, const void *const *inputs, void *const *outputs) = 0;
96
97 protected:
98 ShaderExecutor(const glu::RenderContext &renderCtx, const ShaderSpec &shaderSpec);
99
100 const glu::RenderContext &m_renderCtx;
101
102 std::vector<Symbol> m_inputs;
103 std::vector<Symbol> m_outputs;
104 };
105
operator <<(tcu::TestLog & log,const ShaderExecutor * executor)106 inline tcu::TestLog &operator<<(tcu::TestLog &log, const ShaderExecutor *executor)
107 {
108 executor->log(log);
109 return log;
110 }
operator <<(tcu::TestLog & log,const ShaderExecutor & executor)111 inline tcu::TestLog &operator<<(tcu::TestLog &log, const ShaderExecutor &executor)
112 {
113 executor.log(log);
114 return log;
115 }
116
117 bool executorSupported(glu::ShaderType shaderType);
118 ShaderExecutor *createExecutor(const glu::RenderContext &renderCtx, glu::ShaderType shaderType,
119 const ShaderSpec &shaderSpec);
120
121 } // namespace ShaderExecUtil
122 } // namespace gls
123 } // namespace deqp
124
125 #endif // _GLSSHADEREXECUTIL_HPP
126