1 #ifndef _RSGUTILS_HPP 2 #define _RSGUTILS_HPP 3 /*------------------------------------------------------------------------- 4 * drawElements Quality Program Random Shader Generator 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 Utilities. 24 *//*--------------------------------------------------------------------*/ 25 26 #include "rsgDefs.hpp" 27 #include "rsgShader.hpp" 28 #include "rsgVariableValue.hpp" 29 #include "deRandom.hpp" 30 #include "rsgGeneratorState.hpp" 31 #include "deMath.h" 32 33 #include <vector> 34 35 namespace rsg 36 { 37 38 void computeUnifiedUniforms (const Shader& vertexShader, const Shader& fragmentShader, std::vector<const ShaderInput*>& uniforms); 39 void computeUniformValues (de::Random& rnd, std::vector<VariableValue>& values, const std::vector<const ShaderInput*>& uniforms); 40 41 // \todo [2011-03-26 pyry] Move to ExpressionUtils! 42 43 bool isUndefinedValueRange (ConstValueRangeAccess valueRange); 44 45 int getConservativeValueExprDepth (const GeneratorState& state, ConstValueRangeAccess valueRange); 46 int getTypeConstructorDepth (const VariableType& type); 47 48 VariableType computeRandomType (GeneratorState& state, int maxScalars); 49 void computeRandomValueRange (GeneratorState& state, ValueRangeAccess valueRange); 50 51 float computeDynamicRangeWeight (ConstValueRangeAccess valueRange); 52 53 inline float getQuantizedFloat (de::Random& rnd, float min, float max, float step) 54 { 55 int numSteps = (int)((max-min)/step); 56 return min + step * (float)rnd.getInt(0, numSteps); 57 } 58 59 inline bool quantizeFloatRange (float& min, float& max) 60 { 61 const float subdiv = 8; 62 63 float newMin = deFloatCeil(min*subdiv)/subdiv; 64 if (newMin <= max) 65 min = newMin; // Minimum value quantized 66 else 67 return false; 68 69 float newMax = deFloatFloor(max*subdiv)/subdiv; 70 if (min <= newMax) 71 max = newMax; 72 else 73 return false; 74 75 return true; 76 } 77 78 } // rsg 79 80 #endif // _RSGUTILS_HPP 81
