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#ifndef _RSGEXECUTIONCONTEXT_HPP
#define _RSGEXECUTIONCONTEXT_HPP
/*-------------------------------------------------------------------------
* drawElements Quality Program Random Shader Generator
* ----------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Shader Execution Context.
*//*--------------------------------------------------------------------*/
#include "rsgDefs.hpp"
#include "rsgVariable.hpp"
#include "rsgVariableValue.hpp"
#include "rsgSamplers.hpp"
#include <vector>
#include <map>
namespace rsg
{
enum
{
EXEC_VEC_WIDTH = 64
};
typedef ConstStridedValueAccess<EXEC_VEC_WIDTH> ExecConstValueAccess;
typedef StridedValueAccess<EXEC_VEC_WIDTH> ExecValueAccess;
typedef ValueStorage<EXEC_VEC_WIDTH> ExecValueStorage;
typedef std::map<const Variable*, ExecValueStorage*> VarValueMap;
class ExecMaskStorage
{
public:
ExecMaskStorage (bool initVal = true);
ExecValueAccess getValue (void);
ExecConstValueAccess getValue (void) const;
private:
Scalar m_data[EXEC_VEC_WIDTH];
};
class ExecutionContext
{
public:
ExecutionContext (const Sampler2DMap& samplers2D, const SamplerCubeMap& samplersCube);
~ExecutionContext (void);
ExecValueAccess getValue (const Variable* variable);
const Sampler2D& getSampler2D (const Variable* variable) const;
const SamplerCube& getSamplerCube (const Variable* variable) const;
ExecConstValueAccess getExecutionMask (void) const;
void andExecutionMask (ExecConstValueAccess value); // Pushes computed value
void pushExecutionMask (ExecConstValueAccess value);
void popExecutionMask (void);
protected:
ExecutionContext (const ExecutionContext& other);
ExecutionContext& operator= (const ExecutionContext& other);
VarValueMap m_varValues;
const Sampler2DMap& m_samplers2D;
const SamplerCubeMap& m_samplersCube;
std::vector<ExecMaskStorage> m_execMaskStack;
};
void assignMasked (ExecValueAccess dst, ExecConstValueAccess src, ExecConstValueAccess mask);
} // rsg
#endif // _RSGEXECUTIONCONTEXT_HPP