Jarkko Poyry | 3c82736 | 2014-09-02 11:48:52 +0300 | [diff] [blame] | 1 | /*------------------------------------------------------------------------- |
| 2 | * drawElements Quality Program Random Shader Generator |
| 3 | * ---------------------------------------------------- |
| 4 | * |
| 5 | * Copyright 2014 The Android Open Source Project |
| 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | * you may not use this file except in compliance with the License. |
| 9 | * You may obtain a copy of the License at |
| 10 | * |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | * |
| 13 | * Unless required by applicable law or agreed to in writing, software |
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | * See the License for the specific language governing permissions and |
| 17 | * limitations under the License. |
| 18 | * |
| 19 | *//*! |
| 20 | * \file |
| 21 | * \brief Utilities. |
| 22 | *//*--------------------------------------------------------------------*/ |
| 23 | |
| 24 | #include "rsgUtils.hpp" |
| 25 | |
| 26 | #include <set> |
| 27 | #include <string> |
| 28 | |
| 29 | using std::set; |
| 30 | using std::string; |
| 31 | using std::vector; |
| 32 | |
| 33 | namespace rsg |
| 34 | { |
| 35 | |
| 36 | void addNewUniforms (vector<const ShaderInput*>& uniforms, set<string>& addedUniforms, const Shader& shader) |
| 37 | { |
| 38 | const vector<ShaderInput*>& shaderUniforms = shader.getUniforms(); |
| 39 | for (vector<ShaderInput*>::const_iterator i = shaderUniforms.begin(); i != shaderUniforms.end(); i++) |
| 40 | { |
| 41 | const ShaderInput* uniform = *i; |
| 42 | if (addedUniforms.find(uniform->getVariable()->getName()) == addedUniforms.end()) |
| 43 | { |
| 44 | addedUniforms.insert(uniform->getVariable()->getName()); |
| 45 | uniforms.push_back(uniform); |
| 46 | } |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | void computeUnifiedUniforms (const Shader& vertexShader, const Shader& fragmentShader, std::vector<const ShaderInput*>& uniforms) |
| 51 | { |
| 52 | set<string> addedUniforms; |
| 53 | addNewUniforms(uniforms, addedUniforms, vertexShader); |
| 54 | addNewUniforms(uniforms, addedUniforms, fragmentShader); |
| 55 | } |
| 56 | |
| 57 | void computeRandomValue (de::Random& rnd, ValueAccess dst, ConstValueRangeAccess valueRange) |
| 58 | { |
| 59 | const VariableType& type = dst.getType(); |
| 60 | |
| 61 | switch (type.getBaseType()) |
| 62 | { |
| 63 | case VariableType::TYPE_FLOAT: |
| 64 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 65 | { |
| 66 | const float quantizeStep = 1.0f/8.0f; |
| 67 | float minVal = valueRange.component(ndx).getMin().asFloat(); |
| 68 | float maxVal = valueRange.component(ndx).getMax().asFloat(); |
| 69 | dst.component(ndx).asFloat() = getQuantizedFloat(rnd, minVal, maxVal, quantizeStep); |
| 70 | } |
| 71 | break; |
| 72 | |
| 73 | case VariableType::TYPE_BOOL: |
| 74 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 75 | { |
| 76 | int minVal = valueRange.component(ndx).getMin().asBool() ? 1 : 0; |
| 77 | int maxVal = valueRange.component(ndx).getMin().asBool() ? 1 : 0; |
| 78 | dst.component(ndx).asBool() = rnd.getInt(minVal, maxVal) == 1; |
| 79 | } |
| 80 | break; |
| 81 | |
| 82 | case VariableType::TYPE_INT: |
| 83 | case VariableType::TYPE_SAMPLER_2D: |
| 84 | case VariableType::TYPE_SAMPLER_CUBE: |
| 85 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 86 | { |
| 87 | int minVal = valueRange.component(ndx).getMin().asInt(); |
| 88 | int maxVal = valueRange.component(ndx).getMax().asInt(); |
| 89 | dst.component(ndx).asInt() = rnd.getInt(minVal, maxVal); |
| 90 | } |
| 91 | break; |
| 92 | |
| 93 | case VariableType::TYPE_ARRAY: |
| 94 | { |
| 95 | int numElements = type.getNumElements(); |
| 96 | for (int ndx = 0; ndx < numElements; ndx++) |
| 97 | computeRandomValue(rnd, dst.arrayElement(ndx), valueRange.arrayElement(ndx)); |
| 98 | break; |
| 99 | } |
| 100 | |
| 101 | case VariableType::TYPE_STRUCT: |
| 102 | { |
| 103 | int numMembers = (int)type.getMembers().size(); |
| 104 | for (int ndx = 0; ndx < numMembers; ndx++) |
| 105 | computeRandomValue(rnd, dst.member(ndx), valueRange.member(ndx)); |
| 106 | break; |
| 107 | } |
| 108 | |
| 109 | default: |
| 110 | TCU_FAIL("Invalid type"); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | void computeUniformValues (de::Random& rnd, std::vector<VariableValue>& values, const std::vector<const ShaderInput*>& uniforms) |
| 115 | { |
| 116 | DE_ASSERT(values.empty()); |
| 117 | for (vector<const ShaderInput*>::const_iterator i = uniforms.begin(); i != uniforms.end(); i++) |
| 118 | { |
| 119 | const ShaderInput* uniform = *i; |
| 120 | values.push_back(VariableValue(uniform->getVariable())); |
| 121 | computeRandomValue(rnd, values[values.size()-1].getValue(), uniform->getValueRange()); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | bool isUndefinedValueRange (ConstValueRangeAccess valueRange) |
| 126 | { |
| 127 | switch (valueRange.getType().getBaseType()) |
| 128 | { |
| 129 | case VariableType::TYPE_FLOAT: |
| 130 | case VariableType::TYPE_INT: |
| 131 | { |
| 132 | bool isFloat = valueRange.getType().getBaseType() == VariableType::TYPE_FLOAT; |
| 133 | Scalar infMin = isFloat ? Scalar::min<float>() : Scalar::min<int>(); |
| 134 | Scalar infMax = isFloat ? Scalar::max<float>() : Scalar::max<int>(); |
| 135 | |
| 136 | for (int ndx = 0; ndx < valueRange.getType().getNumElements(); ndx++) |
| 137 | { |
| 138 | if (valueRange.getMin().component(ndx).asScalar() != infMin || |
| 139 | valueRange.getMax().component(ndx).asScalar() != infMax) |
| 140 | return false; |
| 141 | } |
| 142 | return true; |
| 143 | } |
| 144 | |
| 145 | case VariableType::TYPE_BOOL: |
| 146 | return false; |
| 147 | |
| 148 | default: |
| 149 | TCU_FAIL("Unsupported type"); |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | VariableType computeRandomType (GeneratorState& state, int maxScalars) |
| 154 | { |
| 155 | DE_ASSERT(maxScalars >= 1); |
| 156 | |
| 157 | static const VariableType::Type baseTypes[] = |
| 158 | { |
| 159 | VariableType::TYPE_BOOL, |
| 160 | VariableType::TYPE_INT, |
| 161 | VariableType::TYPE_FLOAT |
| 162 | // \todo [pyry] Other types |
| 163 | }; |
| 164 | |
| 165 | VariableType::Type baseType = VariableType::TYPE_LAST; |
| 166 | state.getRandom().choose(baseTypes, baseTypes + DE_LENGTH_OF_ARRAY(baseTypes), &baseType, 1); |
| 167 | |
| 168 | switch (baseType) |
| 169 | { |
| 170 | case VariableType::TYPE_BOOL: |
| 171 | case VariableType::TYPE_INT: |
| 172 | case VariableType::TYPE_FLOAT: |
| 173 | { |
| 174 | const int minVecLength = 1; |
| 175 | const int maxVecLength = 4; |
| 176 | return VariableType(baseType, state.getRandom().getInt(minVecLength, de::min(maxScalars, maxVecLength))); |
| 177 | } |
| 178 | |
| 179 | default: |
| 180 | DE_ASSERT(DE_FALSE); |
| 181 | throw Exception("computeRandomType(): Unsupported type"); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | void computeRandomValueRange (GeneratorState& state, ValueRangeAccess valueRange) |
| 186 | { |
| 187 | const VariableType& type = valueRange.getType(); |
| 188 | de::Random& rnd = state.getRandom(); |
| 189 | |
| 190 | switch (type.getBaseType()) |
| 191 | { |
| 192 | case VariableType::TYPE_BOOL: |
| 193 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 194 | { |
| 195 | bool minVal = rnd.getBool(); |
| 196 | bool maxVal = minVal ? true : rnd.getBool(); |
| 197 | valueRange.getMin().component(ndx).asBool() = minVal; |
| 198 | valueRange.getMax().component(ndx).asBool() = maxVal; |
| 199 | } |
| 200 | break; |
| 201 | |
| 202 | case VariableType::TYPE_INT: |
| 203 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 204 | { |
| 205 | const int minIntVal = -16; |
| 206 | const int maxIntVal = 16; |
| 207 | const int maxRangeLen = maxIntVal - minIntVal; |
| 208 | |
| 209 | int rangeLen = rnd.getInt(0, maxRangeLen); |
| 210 | int minVal = minIntVal + rnd.getInt(0, maxRangeLen-rangeLen); |
| 211 | int maxVal = minVal + rangeLen; |
| 212 | |
| 213 | valueRange.getMin().component(ndx).asInt() = minVal; |
| 214 | valueRange.getMax().component(ndx).asInt() = maxVal; |
| 215 | } |
| 216 | break; |
| 217 | |
| 218 | case VariableType::TYPE_FLOAT: |
| 219 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 220 | { |
| 221 | const float step = 0.1f; |
| 222 | const int maxSteps = 320; |
| 223 | const float minFloatVal = -16.0f; |
| 224 | |
| 225 | int rangeLen = rnd.getInt(0, maxSteps); |
| 226 | int minStep = rnd.getInt(0, maxSteps-rangeLen); |
| 227 | |
Jarkko Pöyry | ba84b6d | 2015-05-19 17:44:29 -0700 | [diff] [blame] | 228 | float minVal = minFloatVal + step*(float)minStep; |
| 229 | float maxVal = minVal + step*(float)rangeLen; |
Jarkko Poyry | 3c82736 | 2014-09-02 11:48:52 +0300 | [diff] [blame] | 230 | |
| 231 | valueRange.getMin().component(ndx).asFloat() = minVal; |
| 232 | valueRange.getMax().component(ndx).asFloat() = maxVal; |
| 233 | } |
| 234 | break; |
| 235 | |
| 236 | default: |
| 237 | DE_ASSERT(DE_FALSE); |
| 238 | throw Exception("computeRandomValueRange(): Unsupported type"); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | int getTypeConstructorDepth (const VariableType& type) |
| 243 | { |
| 244 | switch (type.getBaseType()) |
| 245 | { |
| 246 | case VariableType::TYPE_STRUCT: |
| 247 | { |
| 248 | const vector<VariableType::Member>& members = type.getMembers(); |
| 249 | int maxDepth = 0; |
| 250 | for (vector<VariableType::Member>::const_iterator i = members.begin(); i != members.end(); i++) |
| 251 | { |
| 252 | const VariableType& memberType = i->getType(); |
| 253 | int depth = 0; |
| 254 | switch (memberType.getBaseType()) |
| 255 | { |
| 256 | case VariableType::TYPE_STRUCT: |
| 257 | depth = getTypeConstructorDepth(memberType); |
| 258 | break; |
| 259 | |
| 260 | case VariableType::TYPE_BOOL: |
| 261 | case VariableType::TYPE_FLOAT: |
| 262 | case VariableType::TYPE_INT: |
| 263 | depth = memberType.getNumElements() == 1 ? 1 : 2; |
| 264 | break; |
| 265 | |
| 266 | default: |
| 267 | DE_ASSERT(DE_FALSE); |
| 268 | break; |
| 269 | } |
| 270 | |
| 271 | maxDepth = de::max(maxDepth, depth); |
| 272 | } |
| 273 | return maxDepth + 1; |
| 274 | } |
| 275 | |
| 276 | case VariableType::TYPE_BOOL: |
| 277 | case VariableType::TYPE_FLOAT: |
| 278 | case VariableType::TYPE_INT: |
| 279 | return 2; // One node for ctor, another for value |
| 280 | |
| 281 | default: |
| 282 | DE_ASSERT(DE_FALSE); |
| 283 | return 0; |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | int getConservativeValueExprDepth (const GeneratorState& state, ConstValueRangeAccess valueRange) |
| 288 | { |
| 289 | // \todo [2011-03-22 pyry] Do a look-up into variable manager? |
| 290 | DE_UNREF(state); |
| 291 | return getTypeConstructorDepth(valueRange.getType()); |
| 292 | } |
| 293 | |
| 294 | static float computeRangeLengthSum (ConstValueRangeAccess valueRange) |
| 295 | { |
| 296 | const VariableType& type = valueRange.getType(); |
| 297 | float rangeLength = 0.0f; |
| 298 | |
| 299 | switch (type.getBaseType()) |
| 300 | { |
| 301 | case VariableType::TYPE_FLOAT: |
| 302 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 303 | { |
| 304 | float minVal = valueRange.component(ndx).getMin().asFloat(); |
| 305 | float maxVal = valueRange.component(ndx).getMax().asFloat(); |
| 306 | rangeLength += maxVal - minVal; |
| 307 | } |
| 308 | break; |
| 309 | |
| 310 | case VariableType::TYPE_BOOL: |
| 311 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 312 | { |
| 313 | int minVal = valueRange.component(ndx).getMin().asBool() ? 1 : 0; |
| 314 | int maxVal = valueRange.component(ndx).getMin().asBool() ? 1 : 0; |
| 315 | rangeLength += (float)(maxVal - minVal); |
| 316 | } |
| 317 | break; |
| 318 | |
| 319 | case VariableType::TYPE_INT: |
| 320 | case VariableType::TYPE_SAMPLER_2D: |
| 321 | case VariableType::TYPE_SAMPLER_CUBE: |
| 322 | for (int ndx = 0; ndx < type.getNumElements(); ndx++) |
| 323 | { |
| 324 | int minVal = valueRange.component(ndx).getMin().asInt(); |
| 325 | int maxVal = valueRange.component(ndx).getMax().asInt(); |
| 326 | rangeLength += (float)(maxVal - minVal); |
| 327 | } |
| 328 | break; |
| 329 | |
| 330 | case VariableType::TYPE_ARRAY: |
| 331 | { |
| 332 | int numElements = type.getNumElements(); |
| 333 | for (int ndx = 0; ndx < numElements; ndx++) |
| 334 | rangeLength += computeRangeLengthSum(valueRange.arrayElement(ndx)); |
| 335 | break; |
| 336 | } |
| 337 | |
| 338 | case VariableType::TYPE_STRUCT: |
| 339 | { |
| 340 | int numMembers = (int)type.getMembers().size(); |
| 341 | for (int ndx = 0; ndx < numMembers; ndx++) |
| 342 | rangeLength += computeRangeLengthSum(valueRange.member(ndx)); |
| 343 | break; |
| 344 | } |
| 345 | |
| 346 | default: |
| 347 | TCU_FAIL("Invalid type"); |
| 348 | } |
| 349 | |
| 350 | return rangeLength; |
| 351 | } |
| 352 | |
| 353 | float computeDynamicRangeWeight (ConstValueRangeAccess valueRange) |
| 354 | { |
| 355 | const VariableType& type = valueRange.getType(); |
| 356 | float rangeLenSum = computeRangeLengthSum(valueRange); |
| 357 | int numScalars = type.getScalarSize(); |
| 358 | |
| 359 | return rangeLenSum / (float)numScalars; |
| 360 | } |
| 361 | |
| 362 | } // rsg |