#ifndef _RSGUTILS_HPP
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#define _RSGUTILS_HPP
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/*-------------------------------------------------------------------------
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* drawElements Quality Program Random Shader Generator
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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 Utilities.
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*//*--------------------------------------------------------------------*/
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#include "rsgDefs.hpp"
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#include "rsgShader.hpp"
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#include "rsgVariableValue.hpp"
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#include "deRandom.hpp"
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#include "rsgGeneratorState.hpp"
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#include "deMath.h"
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#include <vector>
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namespace rsg
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{
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void computeUnifiedUniforms (const Shader& vertexShader, const Shader& fragmentShader, std::vector<const ShaderInput*>& uniforms);
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void computeUniformValues (de::Random& rnd, std::vector<VariableValue>& values, const std::vector<const ShaderInput*>& uniforms);
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// \todo [2011-03-26 pyry] Move to ExpressionUtils!
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bool isUndefinedValueRange (ConstValueRangeAccess valueRange);
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int getConservativeValueExprDepth (const GeneratorState& state, ConstValueRangeAccess valueRange);
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int getTypeConstructorDepth (const VariableType& type);
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VariableType computeRandomType (GeneratorState& state, int maxScalars);
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void computeRandomValueRange (GeneratorState& state, ValueRangeAccess valueRange);
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float computeDynamicRangeWeight (ConstValueRangeAccess valueRange);
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inline float getQuantizedFloat (de::Random& rnd, float min, float max, float step)
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{
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int numSteps = (int)((max-min)/step);
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return min + step * (float)rnd.getInt(0, numSteps);
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}
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inline bool quantizeFloatRange (float& min, float& max)
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{
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const float subdiv = 8;
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float newMin = deFloatCeil(min*subdiv)/subdiv;
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if (newMin <= max)
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min = newMin; // Minimum value quantized
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else
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return false;
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float newMax = deFloatFloor(max*subdiv)/subdiv;
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if (min <= newMax)
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max = newMax;
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else
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return false;
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return true;
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}
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} // rsg
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#endif // _RSGUTILS_HPP
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