#ifndef _GLSSHADEREXECUTIL_HPP
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#define _GLSSHADEREXECUTIL_HPP
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/*-------------------------------------------------------------------------
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* drawElements Quality Program OpenGL (ES) Module
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* -----------------------------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Shader execution utilities.
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*//*--------------------------------------------------------------------*/
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#include "tcuDefs.hpp"
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#include "gluVarType.hpp"
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#include "gluShaderUtil.hpp"
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namespace tcu
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{
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class TestLog;
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}
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namespace glu
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{
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class RenderContext;
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}
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namespace deqp
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{
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namespace gls
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{
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namespace ShaderExecUtil
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{
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//! Shader input / output variable declaration.
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struct Symbol
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{
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std::string name; //!< Symbol name.
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glu::VarType varType; //!< Symbol type.
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Symbol (void) {}
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Symbol (const std::string& name_, const glu::VarType& varType_) : name(name_), varType(varType_) {}
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};
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//! Complete shader specification.
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struct ShaderSpec
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{
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glu::GLSLVersion version; //!< Shader version.
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std::vector<Symbol> inputs;
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std::vector<Symbol> outputs;
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std::string globalDeclarations; //!< These are placed into global scope. Can contain uniform declarations for example.
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std::string source; //!< Source snippet to be executed.
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ShaderSpec (void) : version(glu::GLSL_VERSION_300_ES) {}
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};
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//! Base class for shader executor.
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class ShaderExecutor
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{
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public:
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virtual ~ShaderExecutor (void);
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//! Check if executor can be used.
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virtual bool isOk (void) const = 0;
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//! Log executor details (program etc.).
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virtual void log (tcu::TestLog& log) const = 0;
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//! Get program.
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virtual deUint32 getProgram (void) const = 0;
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//! Set this shader program current in context. Must be called before execute().
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virtual void useProgram (void);
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//! Execute active program. useProgram() must be called before this.
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virtual void execute (int numValues, const void* const* inputs, void* const* outputs) = 0;
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protected:
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ShaderExecutor (const glu::RenderContext& renderCtx, const ShaderSpec& shaderSpec);
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const glu::RenderContext& m_renderCtx;
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std::vector<Symbol> m_inputs;
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std::vector<Symbol> m_outputs;
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};
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inline tcu::TestLog& operator<< (tcu::TestLog& log, const ShaderExecutor* executor) { executor->log(log); return log; }
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inline tcu::TestLog& operator<< (tcu::TestLog& log, const ShaderExecutor& executor) { executor.log(log); return log; }
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ShaderExecutor* createExecutor (const glu::RenderContext& renderCtx, glu::ShaderType shaderType, const ShaderSpec& shaderSpec);
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} // ShaderExecUtil
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} // gls
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} // deqp
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#endif // _GLSSHADEREXECUTIL_HPP
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