modules/glshared/glsVertexArrayTests.cpp

   1 /*-------------------------------------------------------------------------
   2  * drawElements Quality Program OpenGL (ES) Module
   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 Vertex array and buffer tests
  22  *//*--------------------------------------------------------------------*/
  23
  24 #include "glsVertexArrayTests.hpp"
  25
  26 #include "deRandom.h"
  27
  28 #include "tcuTestLog.hpp"
  29 #include "tcuPixelFormat.hpp"
  30 #include "tcuRGBA.hpp"
  31 #include "tcuSurface.hpp"
  32 #include "tcuVector.hpp"
  33 #include "tcuTestLog.hpp"
  34 #include "tcuRenderTarget.hpp"
  35 #include "tcuStringTemplate.hpp"
  36 #include "tcuImageCompare.hpp"
  37
  38 #include "gluPixelTransfer.hpp"
  39 #include "gluCallLogWrapper.hpp"
  40
  41 #include "sglrContext.hpp"
  42 #include "sglrReferenceContext.hpp"
  43 #include "sglrGLContext.hpp"
  44
  45 #include "deMath.h"
  46 #include "deStringUtil.hpp"
  47 #include "deArrayUtil.hpp"
  48
  49 #include <cstring>
  50 #include <cmath>
  51 #include <vector>
  52 #include <sstream>
  53 #include <limits>
  54 #include <algorithm>
  55
  56 #include "glwDefs.hpp"
  57 #include "glwEnums.hpp"
  58
  59 namespace deqp
  60 {
  61 namespace gls
  62 {
  63
  64 using tcu::TestLog;
  65 using namespace glw; // GL types
  66
  67 std::string Array::targetToString(Target target)
  68 {
  69         static const char* targets[] =
  70         {
  71                 "element_array",        // TARGET_ELEMENT_ARRAY = 0,
  72                 "array"                         // TARGET_ARRAY,
  73         };
  74
  75         return de::getSizedArrayElement<Array::TARGET_LAST>(targets, (int)target);
  76 }
  77
  78 std::string Array::inputTypeToString(InputType type)
  79 {
  80         static const char* types[] =
  81         {
  82                 "float",                        // INPUTTYPE_FLOAT = 0,
  83                 "fixed",                        // INPUTTYPE_FIXED,
  84                 "double",                       // INPUTTYPE_DOUBLE
  85
  86                 "byte",                         // INPUTTYPE_BYTE,
  87                 "short",                        // INPUTTYPE_SHORT,
  88
  89                 "unsigned_byte",        // INPUTTYPE_UNSIGNED_BYTE,
  90                 "unsigned_short",       // INPUTTYPE_UNSIGNED_SHORT,
  91
  92                 "int",                                          // INPUTTYPE_INT,
  93                 "unsigned_int",                         // INPUTTYPE_UNSIGNED_INT,
  94                 "half",                                         // INPUTTYPE_HALF,
  95                 "usigned_int2_10_10_10",        // INPUTTYPE_UNSIGNED_INT_2_10_10_10,
  96                 "int2_10_10_10"                         // INPUTTYPE_INT_2_10_10_10,
  97         };
  98
  99         return de::getSizedArrayElement<Array::INPUTTYPE_LAST>(types, (int)type);
 100 }
 101
 102 std::string Array::outputTypeToString(OutputType type)
 103 {
 104         static const char* types[] =
 105         {
 106                 "float",                // OUTPUTTYPE_FLOAT = 0,
 107                 "vec2",                 // OUTPUTTYPE_VEC2,
 108                 "vec3",                 // OUTPUTTYPE_VEC3,
 109                 "vec4",                 // OUTPUTTYPE_VEC4,
 110
 111                 "int",                  // OUTPUTTYPE_INT,
 112                 "uint",                 // OUTPUTTYPE_UINT,
 113
 114                 "ivec2",                // OUTPUTTYPE_IVEC2,
 115                 "ivec3",                // OUTPUTTYPE_IVEC3,
 116                 "ivec4",                // OUTPUTTYPE_IVEC4,
 117
 118                 "uvec2",                // OUTPUTTYPE_UVEC2,
 119                 "uvec3",                // OUTPUTTYPE_UVEC3,
 120                 "uvec4",                // OUTPUTTYPE_UVEC4,
 121         };
 122
 123         return de::getSizedArrayElement<Array::OUTPUTTYPE_LAST>(types, (int)type);
 124 }
 125
 126 std::string Array::usageTypeToString(Usage usage)
 127 {
 128         static const char* usages[] =
 129         {
 130                 "dynamic_draw", // USAGE_DYNAMIC_DRAW = 0,
 131                 "static_draw",  // USAGE_STATIC_DRAW,
 132                 "stream_draw",  // USAGE_STREAM_DRAW,
 133
 134                 "stream_read",  // USAGE_STREAM_READ,
 135                 "stream_copy",  // USAGE_STREAM_COPY,
 136
 137                 "static_read",  // USAGE_STATIC_READ,
 138                 "static_copy",  // USAGE_STATIC_COPY,
 139
 140                 "dynamic_read", // USAGE_DYNAMIC_READ,
 141                 "dynamic_copy", // USAGE_DYNAMIC_COPY,
 142         };
 143
 144         return de::getSizedArrayElement<Array::USAGE_LAST>(usages, (int)usage);
 145 }
 146
 147 std::string     Array::storageToString (Storage storage)
 148 {
 149         static const char* storages[] =
 150         {
 151                 "user_ptr",     // STORAGE_USER = 0,
 152                 "buffer"        // STORAGE_BUFFER,
 153         };
 154
 155         return de::getSizedArrayElement<Array::STORAGE_LAST>(storages, (int)storage);
 156 }
 157
 158 std::string Array::primitiveToString (Primitive primitive)
 159 {
 160         static const char* primitives[] =
 161         {
 162                 "points",                       // PRIMITIVE_POINTS ,
 163                 "triangles",            // PRIMITIVE_TRIANGLES,
 164                 "triangle_fan",         // PRIMITIVE_TRIANGLE_FAN,
 165                 "triangle_strip"        // PRIMITIVE_TRIANGLE_STRIP,
 166         };
 167
 168         return de::getSizedArrayElement<Array::PRIMITIVE_LAST>(primitives, (int)primitive);
 169 }
 170
 171 int Array::inputTypeSize (InputType type)
 172 {
 173         static const int size[] =
 174         {
 175                 (int)sizeof(float),                     // INPUTTYPE_FLOAT = 0,
 176                 (int)sizeof(deInt32),           // INPUTTYPE_FIXED,
 177                 (int)sizeof(double),            // INPUTTYPE_DOUBLE
 178
 179                 (int)sizeof(deInt8),            // INPUTTYPE_BYTE,
 180                 (int)sizeof(deInt16),           // INPUTTYPE_SHORT,
 181
 182                 (int)sizeof(deUint8),           // INPUTTYPE_UNSIGNED_BYTE,
 183                 (int)sizeof(deUint16),          // INPUTTYPE_UNSIGNED_SHORT,
 184
 185                 (int)sizeof(deInt32),           // INPUTTYPE_INT,
 186                 (int)sizeof(deUint32),          // INPUTTYPE_UNSIGNED_INT,
 187                 (int)sizeof(deFloat16),         // INPUTTYPE_HALF,
 188                 (int)sizeof(deUint32) / 4,      // INPUTTYPE_UNSIGNED_INT_2_10_10_10,
 189                 (int)sizeof(deUint32) / 4       // INPUTTYPE_INT_2_10_10_10,
 190         };
 191
 192         return de::getSizedArrayElement<Array::INPUTTYPE_LAST>(size, (int)type);
 193 }
 194
 195 static bool inputTypeIsFloatType (Array::InputType type)
 196 {
 197         if (type == Array::INPUTTYPE_FLOAT)
 198                 return true;
 199         if (type == Array::INPUTTYPE_FIXED)
 200                 return true;
 201         if (type == Array::INPUTTYPE_DOUBLE)
 202                 return true;
 203         if (type == Array::INPUTTYPE_HALF)
 204                 return true;
 205         return false;
 206 }
 207
 208 static bool outputTypeIsFloatType (Array::OutputType type)
 209 {
 210         if (type == Array::OUTPUTTYPE_FLOAT
 211                 || type == Array::OUTPUTTYPE_VEC2
 212                 || type == Array::OUTPUTTYPE_VEC3
 213                 || type == Array::OUTPUTTYPE_VEC4)
 214                 return true;
 215
 216         return false;
 217 }
 218
 219 template<class T>
 220 inline T getRandom (deRandom& rnd, T min, T max);
 221
 222 template<>
 223 inline GLValue::Float getRandom (deRandom& rnd, GLValue::Float min, GLValue::Float max)
 224 {
 225         if (max < min)
 226                 return min;
 227
 228         return GLValue::Float::create(min + deRandom_getFloat(&rnd) * (max.to<float>() - min.to<float>()));
 229 }
 230
 231 template<>
 232 inline GLValue::Short getRandom (deRandom& rnd, GLValue::Short min, GLValue::Short max)
 233 {
 234         if (max < min)
 235                 return min;
 236
 237         return GLValue::Short::create((min == max ? min : (deInt16)(min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>())))));
 238 }
 239
 240 template<>
 241 inline GLValue::Ushort getRandom (deRandom& rnd, GLValue::Ushort min, GLValue::Ushort max)
 242 {
 243         if (max < min)
 244                 return min;
 245
 246         return GLValue::Ushort::create((min == max ? min : (deUint16)(min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>())))));
 247 }
 248
 249 template<>
 250 inline GLValue::Byte getRandom (deRandom& rnd, GLValue::Byte min, GLValue::Byte max)
 251 {
 252         if (max < min)
 253                 return min;
 254
 255         return GLValue::Byte::create((min == max ? min : (deInt8)(min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>())))));
 256 }
 257
 258 template<>
 259 inline GLValue::Ubyte getRandom (deRandom& rnd, GLValue::Ubyte min, GLValue::Ubyte max)
 260 {
 261         if (max < min)
 262                 return min;
 263
 264         return GLValue::Ubyte::create((min == max ? min : (deUint8)(min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>())))));
 265 }
 266
 267 template<>
 268 inline GLValue::Fixed getRandom (deRandom& rnd, GLValue::Fixed min, GLValue::Fixed max)
 269 {
 270         if (max < min)
 271                 return min;
 272
 273         return GLValue::Fixed::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<deUint32>() - min.to<deUint32>()))));
 274 }
 275
 276 template<>
 277 inline GLValue::Half getRandom (deRandom& rnd, GLValue::Half min, GLValue::Half max)
 278 {
 279         if (max < min)
 280                 return min;
 281
 282         float fMax = max.to<float>();
 283         float fMin = min.to<float>();
 284         GLValue::Half h = GLValue::Half::create(fMin + deRandom_getFloat(&rnd) * (fMax - fMin));
 285         return h;
 286 }
 287
 288 template<>
 289 inline GLValue::Int getRandom (deRandom& rnd, GLValue::Int min, GLValue::Int max)
 290 {
 291         if (max < min)
 292                 return min;
 293
 294         return GLValue::Int::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<deUint32>() - min.to<deUint32>()))));
 295 }
 296
 297 template<>
 298 inline GLValue::Uint getRandom (deRandom& rnd, GLValue::Uint min, GLValue::Uint max)
 299 {
 300         if (max < min)
 301                 return min;
 302
 303         return GLValue::Uint::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<deUint32>() - min.to<deUint32>()))));
 304 }
 305
 306 template<>
 307 inline GLValue::Double getRandom (deRandom& rnd, GLValue::Double min, GLValue::Double max)
 308 {
 309         if (max < min)
 310                 return min;
 311
 312         return GLValue::Double::create(min + deRandom_getFloat(&rnd) * (max.to<float>() - min.to<float>()));
 313 }
 314
 315 // Minimum difference required between coordinates
 316 template<class T>
 317 inline T minValue (void);
 318
 319 template<>
 320 inline GLValue::Float minValue (void)
 321 {
 322         return GLValue::Float::create(4 * 1.0f);
 323 }
 324
 325 template<>
 326 inline GLValue::Short minValue (void)
 327 {
 328         return GLValue::Short::create(4 * 256);
 329 }
 330
 331 template<>
 332 inline GLValue::Ushort minValue (void)
 333 {
 334         return GLValue::Ushort::create(4 * 256);
 335 }
 336
 337 template<>
 338 inline GLValue::Byte minValue (void)
 339 {
 340         return GLValue::Byte::create(4 * 1);
 341 }
 342
 343 template<>
 344 inline GLValue::Ubyte minValue (void)
 345 {
 346         return GLValue::Ubyte::create(4 * 2);
 347 }
 348
 349 template<>
 350 inline GLValue::Fixed minValue (void)
 351 {
 352         return GLValue::Fixed::create(4 * 512);
 353 }
 354
 355 template<>
 356 inline GLValue::Int minValue (void)
 357 {
 358         return GLValue::Int::create(4 * 16777216);
 359 }
 360
 361 template<>
 362 inline GLValue::Uint minValue (void)
 363 {
 364         return GLValue::Uint::create(4 * 16777216);
 365 }
 366
 367 template<>
 368 inline GLValue::Half minValue (void)
 369 {
 370         return GLValue::Half::create(4 * 1.0f);
 371 }
 372
 373 template<>
 374 inline GLValue::Double minValue (void)
 375 {
 376         return GLValue::Double::create(4 * 1.0f);
 377 }
 378
 379 template<class T>
 380 inline T abs (T val);
 381
 382 template<>
 383 inline GLValue::Fixed abs (GLValue::Fixed val)
 384 {
 385         return GLValue::Fixed::create(0x7FFFu & val.getValue());
 386 }
 387
 388 template<>
 389 inline GLValue::Ubyte abs (GLValue::Ubyte val)
 390 {
 391         return val;
 392 }
 393
 394 template<>
 395 inline GLValue::Byte abs (GLValue::Byte val)
 396 {
 397         return GLValue::Byte::create(0x7Fu & val.getValue());
 398 }
 399
 400 template<>
 401 inline GLValue::Ushort abs (GLValue::Ushort val)
 402 {
 403         return val;
 404 }
 405
 406 template<>
 407 inline GLValue::Short abs (GLValue::Short val)
 408 {
 409         return GLValue::Short::create(0x7FFFu & val.getValue());
 410 }
 411
 412 template<>
 413 inline GLValue::Float abs (GLValue::Float val)
 414 {
 415         return GLValue::Float::create(std::fabs(val.to<float>()));
 416 }
 417
 418 template<>
 419 inline GLValue::Uint abs (GLValue::Uint val)
 420 {
 421         return val;
 422 }
 423
 424 template<>
 425 inline GLValue::Int abs (GLValue::Int val)
 426 {
 427         return GLValue::Int::create(0x7FFFFFFFu & val.getValue());
 428 }
 429
 430 template<>
 431 inline GLValue::Half abs (GLValue::Half val)
 432 {
 433         return GLValue::Half::create(std::fabs(val.to<float>()));
 434 }
 435
 436 template<>
 437 inline GLValue::Double abs (GLValue::Double val)
 438 {
 439         return GLValue::Double::create(std::fabs(val.to<float>()));
 440 }
 441
 442 template<class T>
 443 static inline void alignmentSafeAssignment (char* dst, T val)
 444 {
 445         std::memcpy(dst, &val, sizeof(T));
 446 }
 447
 448 ContextArray::ContextArray (Storage storage, sglr::Context& context)
 449         : m_storage                     (storage)
 450         , m_ctx                         (context)
 451         , m_glBuffer            (0)
 452         , m_bound                       (false)
 453         , m_attribNdx           (0)
 454         , m_size                        (0)
 455         , m_data                        (DE_NULL)
 456         , m_componentCount      (1)
 457         , m_target                      (Array::TARGET_ARRAY)
 458         , m_inputType           (Array::INPUTTYPE_FLOAT)
 459         , m_outputType          (Array::OUTPUTTYPE_VEC4)
 460         , m_normalize           (false)
 461         , m_stride                      (0)
 462         , m_offset                      (0)
 463 {
 464         if (m_storage == STORAGE_BUFFER)
 465         {
 466                 m_ctx.genBuffers(1, &m_glBuffer);
 467                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glGenBuffers()");
 468         }
 469 }
 470
 471 ContextArray::~ContextArray     (void)
 472 {
 473         if (m_storage == STORAGE_BUFFER)
 474         {
 475                 m_ctx.deleteBuffers(1, &m_glBuffer);
 476                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDeleteBuffers()");
 477         }
 478         else if (m_storage == STORAGE_USER)
 479                 delete[] m_data;
 480         else
 481                 DE_ASSERT(false);
 482 }
 483
 484 Array* ContextArrayPack::getArray (int i)
 485 {
 486         return m_arrays.at(i);
 487 }
 488
 489 void ContextArray::data (Target target, int size, const char* ptr, Usage usage)
 490 {
 491         m_size = size;
 492         m_target = target;
 493
 494         if (m_storage == STORAGE_BUFFER)
 495         {
 496                 m_ctx.bindBuffer(targetToGL(target), m_glBuffer);
 497                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
 498
 499                 m_ctx.bufferData(targetToGL(target), size, ptr, usageToGL(usage));
 500                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBufferData()");
 501         }
 502         else if (m_storage == STORAGE_USER)
 503         {
 504                 if (m_data)
 505                         delete[] m_data;
 506
 507                 m_data = new char[size];
 508                 std::memcpy(m_data, ptr, size);
 509         }
 510         else
 511                 DE_ASSERT(false);
 512 }
 513
 514 void ContextArray::subdata (Target target, int offset, int size, const char* ptr)
 515 {
 516         m_target = target;
 517
 518         if (m_storage == STORAGE_BUFFER)
 519         {
 520                 m_ctx.bindBuffer(targetToGL(target), m_glBuffer);
 521                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
 522
 523                 m_ctx.bufferSubData(targetToGL(target), offset, size, ptr);
 524                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBufferSubData()");
 525         }
 526         else if (m_storage == STORAGE_USER)
 527                 std::memcpy(m_data + offset, ptr, size);
 528         else
 529                 DE_ASSERT(false);
 530 }
 531
 532 void ContextArray::bind (int attribNdx, int offset, int size, InputType inputType, OutputType outType, bool normalized, int stride)
 533 {
 534         m_attribNdx                     = attribNdx;
 535         m_bound                         = true;
 536         m_componentCount        = size;
 537         m_inputType                     = inputType;
 538         m_outputType            = outType;
 539         m_normalize                     = normalized;
 540         m_stride                        = stride;
 541         m_offset                        = offset;
 542 }
 543
 544 void ContextArray::bindIndexArray (Array::Target target)
 545 {
 546         if (m_storage == STORAGE_USER)
 547         {
 548         }
 549         else if (m_storage == STORAGE_BUFFER)
 550         {
 551                 m_ctx.bindBuffer(targetToGL(target), m_glBuffer);
 552         }
 553 }
 554
 555 void ContextArray::glBind (deUint32 loc)
 556 {
 557         if (m_storage == STORAGE_BUFFER)
 558         {
 559                 m_ctx.bindBuffer(targetToGL(m_target), m_glBuffer);
 560                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
 561
 562                 if (!inputTypeIsFloatType(m_inputType))
 563                 {
 564                         // Input is not float type
 565
 566                         if (outputTypeIsFloatType(m_outputType))
 567                         {
 568                                 // Output type is float type
 569                                 m_ctx.vertexAttribPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_normalize, m_stride, (GLvoid*)((GLintptr)m_offset));
 570                                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribPointer()");
 571                         }
 572                         else
 573                         {
 574                                 // Output type is int type
 575                                 m_ctx.vertexAttribIPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_stride, (GLvoid*)((GLintptr)m_offset));
 576                                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribIPointer()");
 577                         }
 578                 }
 579                 else
 580                 {
 581                         // Input type is float type
 582
 583                         // Output type must be float type
 584                         DE_ASSERT(m_outputType == OUTPUTTYPE_FLOAT || m_outputType == OUTPUTTYPE_VEC2 || m_outputType == OUTPUTTYPE_VEC3 || m_outputType == OUTPUTTYPE_VEC4);
 585
 586                         m_ctx.vertexAttribPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_normalize, m_stride, (GLvoid*)((GLintptr)m_offset));
 587                         GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribPointer()");
 588                 }
 589
 590                 m_ctx.bindBuffer(targetToGL(m_target), 0);
 591         }
 592         else if (m_storage == STORAGE_USER)
 593         {
 594                 m_ctx.bindBuffer(targetToGL(m_target), 0);
 595                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
 596
 597                 if (!inputTypeIsFloatType(m_inputType))
 598                 {
 599                         // Input is not float type
 600
 601                         if (outputTypeIsFloatType(m_outputType))
 602                         {
 603                                 // Output type is float type
 604                                 m_ctx.vertexAttribPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_normalize, m_stride, m_data + m_offset);
 605                                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribPointer()");
 606                         }
 607                         else
 608                         {
 609                                 // Output type is int type
 610                                 m_ctx.vertexAttribIPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_stride, m_data + m_offset);
 611                                 GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribIPointer()");
 612                         }
 613                 }
 614                 else
 615                 {
 616                         // Input type is float type
 617
 618                         // Output type must be float type
 619                         DE_ASSERT(m_outputType == OUTPUTTYPE_FLOAT || m_outputType == OUTPUTTYPE_VEC2 || m_outputType == OUTPUTTYPE_VEC3 || m_outputType == OUTPUTTYPE_VEC4);
 620
 621                         m_ctx.vertexAttribPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_normalize, m_stride, m_data + m_offset);
 622                         GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribPointer()");
 623                 }
 624         }
 625         else
 626                 DE_ASSERT(false);
 627 }
 628
 629 GLenum ContextArray::targetToGL (Array::Target target)
 630 {
 631         static const GLenum targets[] =
 632         {
 633                 GL_ELEMENT_ARRAY_BUFFER,        // TARGET_ELEMENT_ARRAY = 0,
 634                 GL_ARRAY_BUFFER                         // TARGET_ARRAY,
 635         };
 636
 637         return de::getSizedArrayElement<Array::TARGET_LAST>(targets, (int)target);
 638 }
 639
 640 GLenum ContextArray::usageToGL (Array::Usage usage)
 641 {
 642         static const GLenum usages[] =
 643         {
 644                 GL_DYNAMIC_DRAW,        // USAGE_DYNAMIC_DRAW = 0,
 645                 GL_STATIC_DRAW,         // USAGE_STATIC_DRAW,
 646                 GL_STREAM_DRAW,         // USAGE_STREAM_DRAW,
 647
 648                 GL_STREAM_READ,         // USAGE_STREAM_READ,
 649                 GL_STREAM_COPY,         // USAGE_STREAM_COPY,
 650
 651                 GL_STATIC_READ,         // USAGE_STATIC_READ,
 652                 GL_STATIC_COPY,         // USAGE_STATIC_COPY,
 653
 654                 GL_DYNAMIC_READ,        // USAGE_DYNAMIC_READ,
 655                 GL_DYNAMIC_COPY         // USAGE_DYNAMIC_COPY,
 656         };
 657
 658         return de::getSizedArrayElement<Array::USAGE_LAST>(usages, (int)usage);
 659 }
 660
 661 GLenum ContextArray::inputTypeToGL (Array::InputType type)
 662 {
 663         static const GLenum types[] =
 664         {
 665                 GL_FLOAT,                               // INPUTTYPE_FLOAT = 0,
 666                 GL_FIXED,                               // INPUTTYPE_FIXED,
 667                 GL_DOUBLE,                              // INPUTTYPE_DOUBLE
 668                 GL_BYTE,                                // INPUTTYPE_BYTE,
 669                 GL_SHORT,                               // INPUTTYPE_SHORT,
 670                 GL_UNSIGNED_BYTE,               // INPUTTYPE_UNSIGNED_BYTE,
 671                 GL_UNSIGNED_SHORT,              // INPUTTYPE_UNSIGNED_SHORT,
 672
 673                 GL_INT,                                 // INPUTTYPE_INT,
 674                 GL_UNSIGNED_INT,                // INPUTTYPE_UNSIGNED_INT,
 675                 GL_HALF_FLOAT,                  // INPUTTYPE_HALF,
 676                 GL_UNSIGNED_INT_2_10_10_10_REV, // INPUTTYPE_UNSIGNED_INT_2_10_10_10,
 677                 GL_INT_2_10_10_10_REV                   // INPUTTYPE_INT_2_10_10_10,
 678         };
 679
 680         return de::getSizedArrayElement<Array::INPUTTYPE_LAST>(types, (int)type);
 681 }
 682
 683 std::string ContextArray::outputTypeToGLType (Array::OutputType type)
 684 {
 685         static const char* types[] =
 686         {
 687                 "float",                // OUTPUTTYPE_FLOAT = 0,
 688                 "vec2",                 // OUTPUTTYPE_VEC2,
 689                 "vec3",                 // OUTPUTTYPE_VEC3,
 690                 "vec4",                 // OUTPUTTYPE_VEC4,
 691
 692                 "int",                  // OUTPUTTYPE_INT,
 693                 "uint",                 // OUTPUTTYPE_UINT,
 694
 695                 "ivec2",                // OUTPUTTYPE_IVEC2,
 696                 "ivec3",                // OUTPUTTYPE_IVEC3,
 697                 "ivec4",                // OUTPUTTYPE_IVEC4,
 698
 699                 "uvec2",                // OUTPUTTYPE_UVEC2,
 700                 "uvec3",                // OUTPUTTYPE_UVEC3,
 701                 "uvec4",                // OUTPUTTYPE_UVEC4,
 702         };
 703
 704         return de::getSizedArrayElement<Array::OUTPUTTYPE_LAST>(types, (int)type);
 705 }
 706
 707 GLenum ContextArray::primitiveToGL (Array::Primitive primitive)
 708 {
 709         static const GLenum primitives[] =
 710         {
 711                 GL_POINTS,                      // PRIMITIVE_POINTS = 0,
 712                 GL_TRIANGLES,           // PRIMITIVE_TRIANGLES,
 713                 GL_TRIANGLE_FAN,        // PRIMITIVE_TRIANGLE_FAN,
 714                 GL_TRIANGLE_STRIP       // PRIMITIVE_TRIANGLE_STRIP,
 715         };
 716
 717         return de::getSizedArrayElement<Array::PRIMITIVE_LAST>(primitives, (int)primitive);
 718 }
 719
 720 ContextArrayPack::ContextArrayPack (glu::RenderContext& renderCtx, sglr::Context& drawContext)
 721         : m_renderCtx   (renderCtx)
 722         , m_ctx                 (drawContext)
 723         , m_program             (DE_NULL)
 724         , m_screen              (std::min(512, renderCtx.getRenderTarget().getWidth()), std::min(512, renderCtx.getRenderTarget().getHeight()))
 725 {
 726 }
 727
 728 ContextArrayPack::~ContextArrayPack (void)
 729 {
 730         for (std::vector<ContextArray*>::iterator itr = m_arrays.begin(); itr != m_arrays.end(); itr++)
 731                 delete *itr;
 732
 733         delete m_program;
 734 }
 735
 736 int ContextArrayPack::getArrayCount (void)
 737 {
 738         return (int)m_arrays.size();
 739 }
 740
 741 void ContextArrayPack::newArray (Array::Storage storage)
 742 {
 743         m_arrays.push_back(new ContextArray(storage, m_ctx));
 744 }
 745
 746 class ContextShaderProgram : public sglr::ShaderProgram
 747 {
 748 public:
 749                                                                                                 ContextShaderProgram            (const glu::RenderContext& ctx, const std::vector<ContextArray*>& arrays);
 750
 751         void                                                                            shadeVertices                           (const rr::VertexAttrib* inputs, rr::VertexPacket* const* packets, const int numPackets) const;
 752         void                                                                            shadeFragments                          (rr::FragmentPacket* packets, const int numPackets, const rr::FragmentShadingContext& context) const;
 753
 754 private:
 755         static std::string                                                      genVertexSource                         (const glu::RenderContext& ctx, const std::vector<ContextArray*>& arrays);
 756         static std::string                                                      genFragmentSource                       (const glu::RenderContext& ctx);
 757         static rr::GenericVecType                                       mapOutputType                           (const Array::OutputType& type);
 758         static int                                                                      getComponentCount                       (const Array::OutputType& type);
 759
 760         static sglr::pdec::ShaderProgramDeclaration createProgramDeclaration    (const glu::RenderContext& ctx, const std::vector<ContextArray*>& arrays);
 761
 762         std::vector<int>                                                        m_componentCount;
 763         std::vector<rr::GenericVecType>                         m_attrType;
 764 };
 765
 766 ContextShaderProgram::ContextShaderProgram (const glu::RenderContext& ctx, const std::vector<ContextArray*>& arrays)
 767         : sglr::ShaderProgram   (createProgramDeclaration(ctx, arrays))
 768         , m_componentCount              (arrays.size())
 769         , m_attrType                    (arrays.size())
 770 {
 771         for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
 772         {
 773                 m_componentCount[arrayNdx]      = getComponentCount(arrays[arrayNdx]->getOutputType());
 774                 m_attrType[arrayNdx]            = mapOutputType(arrays[arrayNdx]->getOutputType());
 775         }
 776 }
 777
 778 template <typename T>
 779 void calcShaderColorCoord (tcu::Vec2& coord, tcu::Vec3& color, const tcu::Vector<T, 4>& attribValue, bool isCoordinate, int numComponents)
 780 {
 781         if (isCoordinate)
 782                 switch (numComponents)
 783                 {
 784                         case 1: coord = tcu::Vec2((float)attribValue.x(),                                                       (float)attribValue.x());                                                        break;
 785                         case 2: coord = tcu::Vec2((float)attribValue.x(),                                                       (float)attribValue.y());                                                        break;
 786                         case 3: coord = tcu::Vec2((float)attribValue.x() + (float)attribValue.z(),      (float)attribValue.y());                                                        break;
 787                         case 4: coord = tcu::Vec2((float)attribValue.x() + (float)attribValue.z(),      (float)attribValue.y() + (float)attribValue.w());       break;
 788
 789                         default:
 790                                 DE_ASSERT(false);
 791                 }
 792         else
 793         {
 794                 switch (numComponents)
 795                 {
 796                         case 1:
 797                                 color = color * (float)attribValue.x();
 798                                 break;
 799
 800                         case 2:
 801                                 color.x() = color.x() * (float)attribValue.x();
 802                                 color.y() = color.y() * (float)attribValue.y();
 803                                 break;
 804
 805                         case 3:
 806                                 color.x() = color.x() * (float)attribValue.x();
 807                                 color.y() = color.y() * (float)attribValue.y();
 808                                 color.z() = color.z() * (float)attribValue.z();
 809                                 break;
 810
 811                         case 4:
 812                                 color.x() = color.x() * (float)attribValue.x() * (float)attribValue.w();
 813                                 color.y() = color.y() * (float)attribValue.y() * (float)attribValue.w();
 814                                 color.z() = color.z() * (float)attribValue.z() * (float)attribValue.w();
 815                                 break;
 816
 817                         default:
 818                                 DE_ASSERT(false);
 819                 }
 820         }
 821 }
 822
 823 void ContextShaderProgram::shadeVertices (const rr::VertexAttrib* inputs, rr::VertexPacket* const* packets, const int numPackets) const
 824 {
 825         const float     u_coordScale = getUniformByName("u_coordScale").value.f;
 826         const float u_colorScale = getUniformByName("u_colorScale").value.f;
 827
 828         for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx)
 829         {
 830                 const size_t varyingLocColor = 0;
 831
 832                 rr::VertexPacket& packet = *packets[packetNdx];
 833
 834                 // Calc output color
 835                 tcu::Vec2 coord = tcu::Vec2(1.0, 1.0);
 836                 tcu::Vec3 color = tcu::Vec3(1.0, 1.0, 1.0);
 837
 838                 for (int attribNdx = 0; attribNdx < (int)m_attrType.size(); attribNdx++)
 839                 {
 840                         const int numComponents = m_componentCount[attribNdx];
 841
 842                         switch (m_attrType[attribNdx])
 843                         {
 844                                 case rr::GENERICVECTYPE_FLOAT:  calcShaderColorCoord(coord, color, rr::readVertexAttribFloat(inputs[attribNdx], packet.instanceNdx, packet.vertexNdx), attribNdx == 0, numComponents);  break;
 845                                 case rr::GENERICVECTYPE_INT32:  calcShaderColorCoord(coord, color, rr::readVertexAttribInt      (inputs[attribNdx], packet.instanceNdx, packet.vertexNdx), attribNdx == 0, numComponents);      break;
 846                                 case rr::GENERICVECTYPE_UINT32: calcShaderColorCoord(coord, color, rr::readVertexAttribUint     (inputs[attribNdx], packet.instanceNdx, packet.vertexNdx), attribNdx == 0, numComponents);      break;
 847                                 default:
 848                                         DE_ASSERT(false);
 849                         }
 850                 }
 851
 852                 // Transform position
 853                 {
 854                         packet.position = tcu::Vec4(u_coordScale * coord.x(), u_coordScale * coord.y(), 1.0f, 1.0f);
 855                 }
 856
 857                 // Pass color to FS
 858                 {
 859                         packet.outputs[varyingLocColor] = tcu::Vec4(u_colorScale * color.x(), u_colorScale * color.y(), u_colorScale * color.z(), 1.0f);
 860                 }
 861         }
 862 }
 863
 864 void ContextShaderProgram::shadeFragments (rr::FragmentPacket* packets, const int numPackets, const rr::FragmentShadingContext& context) const
 865 {
 866         const size_t varyingLocColor = 0;
 867
 868         // Triangles are flashaded
 869         tcu::Vec4 color = rr::readTriangleVarying<float>(packets[0], context, varyingLocColor, 0);
 870
 871         for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx)
 872                 for (int fragNdx = 0; fragNdx < 4; ++fragNdx)
 873                         rr::writeFragmentOutput(context, packetNdx, fragNdx, 0, color);
 874 }
 875
 876 std::string ContextShaderProgram::genVertexSource (const glu::RenderContext& ctx, const std::vector<ContextArray*>& arrays)
 877 {
 878         std::stringstream vertexShaderTmpl;
 879         std::map<std::string, std::string> params;
 880
 881         if (glu::isGLSLVersionSupported(ctx.getType(), glu::GLSL_VERSION_300_ES))
 882         {
 883                 params["VTX_IN"]                = "in";
 884                 params["VTX_OUT"]               = "out";
 885                 params["FRAG_IN"]               = "in";
 886                 params["FRAG_COLOR"]    = "dEQP_FragColor";
 887                 params["VTX_HDR"]               = "#version 300 es\n";
 888                 params["FRAG_HDR"]              = "#version 300 es\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
 889         }
 890         else if (glu::isGLSLVersionSupported(ctx.getType(), glu::GLSL_VERSION_100_ES))
 891         {
 892                 params["VTX_IN"]                = "attribute";
 893                 params["VTX_OUT"]               = "varying";
 894                 params["FRAG_IN"]               = "varying";
 895                 params["FRAG_COLOR"]    = "gl_FragColor";
 896                 params["VTX_HDR"]               = "";
 897                 params["FRAG_HDR"]              = "";
 898         }
 899         else if (glu::isGLSLVersionSupported(ctx.getType(), glu::GLSL_VERSION_330))
 900         {
 901                 params["VTX_IN"]                = "in";
 902                 params["VTX_OUT"]               = "out";
 903                 params["FRAG_IN"]               = "in";
 904                 params["FRAG_COLOR"]    = "dEQP_FragColor";
 905                 params["VTX_HDR"]               = "#version 330\n";
 906                 params["FRAG_HDR"]              = "#version 330\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
 907         }
 908         else
 909                 DE_ASSERT(DE_FALSE);
 910
 911         vertexShaderTmpl << "${VTX_HDR}";
 912
 913         for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
 914         {
 915                 vertexShaderTmpl
 916                         << "${VTX_IN} highp " <<  ContextArray::outputTypeToGLType(arrays[arrayNdx]->getOutputType()) << " a_" << arrays[arrayNdx]->getAttribNdx() << ";\n";
 917         }
 918
 919         vertexShaderTmpl <<
 920                 "uniform highp float u_coordScale;\n"
 921                 "uniform highp float u_colorScale;\n"
 922                 "${VTX_OUT} mediump vec4 v_color;\n"
 923                 "void main(void)\n"
 924                 "{\n"
 925                 "\tgl_PointSize = 1.0;\n"
 926                 "\thighp vec2 coord = vec2(1.0, 1.0);\n"
 927                 "\thighp vec3 color = vec3(1.0, 1.0, 1.0);\n";
 928
 929         for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
 930         {
 931                 if (arrays[arrayNdx]->getAttribNdx() == 0)
 932                 {
 933                         switch (arrays[arrayNdx]->getOutputType())
 934                         {
 935                                 case (Array::OUTPUTTYPE_FLOAT):
 936                                         vertexShaderTmpl <<
 937                                                 "\tcoord = vec2(a_0);\n";
 938                                         break;
 939
 940                                 case (Array::OUTPUTTYPE_VEC2):
 941                                         vertexShaderTmpl <<
 942                                                 "\tcoord = a_0.xy;\n";
 943                                         break;
 944
 945                                 case (Array::OUTPUTTYPE_VEC3):
 946                                         vertexShaderTmpl <<
 947                                                 "\tcoord = a_0.xy;\n"
 948                                                 "\tcoord.x = coord.x + a_0.z;\n";
 949                                         break;
 950
 951                                 case (Array::OUTPUTTYPE_VEC4):
 952                                         vertexShaderTmpl <<
 953                                                 "\tcoord = a_0.xy;\n"
 954                                                 "\tcoord += a_0.zw;\n";
 955                                         break;
 956
 957                                 case (Array::OUTPUTTYPE_IVEC2):
 958                                 case (Array::OUTPUTTYPE_UVEC2):
 959                                         vertexShaderTmpl <<
 960                                                 "\tcoord = vec2(a_0.xy);\n";
 961                                         break;
 962
 963                                 case (Array::OUTPUTTYPE_IVEC3):
 964                                 case (Array::OUTPUTTYPE_UVEC3):
 965                                         vertexShaderTmpl <<
 966                                                 "\tcoord = vec2(a_0.xy);\n"
 967                                                 "\tcoord.x = coord.x + float(a_0.z);\n";
 968                                         break;
 969
 970                                 case (Array::OUTPUTTYPE_IVEC4):
 971                                 case (Array::OUTPUTTYPE_UVEC4):
 972                                         vertexShaderTmpl <<
 973                                                 "\tcoord = vec2(a_0.xy);\n"
 974                                                 "\tcoord += vec2(a_0.zw);\n";
 975                                         break;
 976
 977                                 default:
 978                                         DE_ASSERT(false);
 979                                         break;
 980                         }
 981                         continue;
 982                 }
 983
 984                 switch (arrays[arrayNdx]->getOutputType())
 985                 {
 986                         case (Array::OUTPUTTYPE_FLOAT):
 987                                 vertexShaderTmpl <<
 988                                         "\tcolor = color * a_" << arrays[arrayNdx]->getAttribNdx() << ";\n";
 989                                 break;
 990
 991                         case (Array::OUTPUTTYPE_VEC2):
 992                                 vertexShaderTmpl <<
 993                                         "\tcolor.rg = color.rg * a_" << arrays[arrayNdx]->getAttribNdx() << ".xy;\n";
 994                                 break;
 995
 996                         case (Array::OUTPUTTYPE_VEC3):
 997                                 vertexShaderTmpl <<
 998                                         "\tcolor = color.rgb * a_" << arrays[arrayNdx]->getAttribNdx() << ".xyz;\n";
 999                                 break;
1000
1001                         case (Array::OUTPUTTYPE_VEC4):
1002                                 vertexShaderTmpl <<
1003                                         "\tcolor = color.rgb * a_" << arrays[arrayNdx]->getAttribNdx() << ".xyz * a_" << arrays[arrayNdx]->getAttribNdx() << ".w;\n";
1004                                 break;
1005
1006                         default:
1007                                 DE_ASSERT(false);
1008                                 break;
1009                 }
1010         }
1011
1012         vertexShaderTmpl <<
1013                 "\tv_color = vec4(u_colorScale * color, 1.0);\n"
1014                 "\tgl_Position = vec4(u_coordScale * coord, 1.0, 1.0);\n"
1015                 "}\n";
1016
1017         return tcu::StringTemplate(vertexShaderTmpl.str().c_str()).specialize(params);
1018 }
1019
1020 std::string ContextShaderProgram::genFragmentSource (const glu::RenderContext& ctx)
1021 {
1022         std::map<std::string, std::string> params;
1023
1024         if (glu::isGLSLVersionSupported(ctx.getType(), glu::GLSL_VERSION_300_ES))
1025         {
1026                 params["VTX_IN"]                = "in";
1027                 params["VTX_OUT"]               = "out";
1028                 params["FRAG_IN"]               = "in";
1029                 params["FRAG_COLOR"]    = "dEQP_FragColor";
1030                 params["VTX_HDR"]               = "#version 300 es\n";
1031                 params["FRAG_HDR"]              = "#version 300 es\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
1032         }
1033         else if (glu::isGLSLVersionSupported(ctx.getType(), glu::GLSL_VERSION_100_ES))
1034         {
1035                 params["VTX_IN"]                = "attribute";
1036                 params["VTX_OUT"]               = "varying";
1037                 params["FRAG_IN"]               = "varying";
1038                 params["FRAG_COLOR"]    = "gl_FragColor";
1039                 params["VTX_HDR"]               = "";
1040                 params["FRAG_HDR"]              = "";
1041         }
1042         else if (glu::isGLSLVersionSupported(ctx.getType(), glu::GLSL_VERSION_330))
1043         {
1044                 params["VTX_IN"]                = "in";
1045                 params["VTX_OUT"]               = "out";
1046                 params["FRAG_IN"]               = "in";
1047                 params["FRAG_COLOR"]    = "dEQP_FragColor";
1048                 params["VTX_HDR"]               = "#version 330\n";
1049                 params["FRAG_HDR"]              = "#version 330\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
1050         }
1051         else
1052                 DE_ASSERT(DE_FALSE);
1053
1054         static const char* fragmentShaderTmpl =
1055                 "${FRAG_HDR}"
1056                 "${FRAG_IN} mediump vec4 v_color;\n"
1057                 "void main(void)\n"
1058                 "{\n"
1059                 "\t${FRAG_COLOR} = v_color;\n"
1060                 "}\n";
1061
1062         return tcu::StringTemplate(fragmentShaderTmpl).specialize(params);
1063 }
1064
1065 rr::GenericVecType ContextShaderProgram::mapOutputType (const Array::OutputType& type)
1066 {
1067         switch (type)
1068         {
1069                 case (Array::OUTPUTTYPE_FLOAT):
1070                 case (Array::OUTPUTTYPE_VEC2):
1071                 case (Array::OUTPUTTYPE_VEC3):
1072                 case (Array::OUTPUTTYPE_VEC4):
1073                         return rr::GENERICVECTYPE_FLOAT;
1074
1075                 case (Array::OUTPUTTYPE_INT):
1076                 case (Array::OUTPUTTYPE_IVEC2):
1077                 case (Array::OUTPUTTYPE_IVEC3):
1078                 case (Array::OUTPUTTYPE_IVEC4):
1079                         return rr::GENERICVECTYPE_INT32;
1080
1081                 case (Array::OUTPUTTYPE_UINT):
1082                 case (Array::OUTPUTTYPE_UVEC2):
1083                 case (Array::OUTPUTTYPE_UVEC3):
1084                 case (Array::OUTPUTTYPE_UVEC4):
1085                         return rr::GENERICVECTYPE_UINT32;
1086
1087                 default:
1088                         DE_ASSERT(false);
1089                         return rr::GENERICVECTYPE_LAST;
1090         }
1091 }
1092
1093 int ContextShaderProgram::getComponentCount (const Array::OutputType& type)
1094 {
1095         switch (type)
1096         {
1097                 case (Array::OUTPUTTYPE_FLOAT):
1098                 case (Array::OUTPUTTYPE_INT):
1099                 case (Array::OUTPUTTYPE_UINT):
1100                         return 1;
1101
1102                 case (Array::OUTPUTTYPE_VEC2):
1103                 case (Array::OUTPUTTYPE_IVEC2):
1104                 case (Array::OUTPUTTYPE_UVEC2):
1105                         return 2;
1106
1107                 case (Array::OUTPUTTYPE_VEC3):
1108                 case (Array::OUTPUTTYPE_IVEC3):
1109                 case (Array::OUTPUTTYPE_UVEC3):
1110                         return 3;
1111
1112                 case (Array::OUTPUTTYPE_VEC4):
1113                 case (Array::OUTPUTTYPE_IVEC4):
1114                 case (Array::OUTPUTTYPE_UVEC4):
1115                         return 4;
1116
1117                 default:
1118                         DE_ASSERT(false);
1119                         return 0;
1120         }
1121 }
1122
1123 sglr::pdec::ShaderProgramDeclaration ContextShaderProgram::createProgramDeclaration (const glu::RenderContext& ctx, const std::vector<ContextArray*>& arrays)
1124 {
1125         sglr::pdec::ShaderProgramDeclaration decl;
1126
1127         for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
1128                 decl << sglr::pdec::VertexAttribute(std::string("a_") + de::toString(arrayNdx), mapOutputType(arrays[arrayNdx]->getOutputType()));
1129
1130         decl << sglr::pdec::VertexToFragmentVarying(rr::GENERICVECTYPE_FLOAT);
1131         decl << sglr::pdec::FragmentOutput(rr::GENERICVECTYPE_FLOAT);
1132
1133         decl << sglr::pdec::VertexSource(genVertexSource(ctx, arrays));
1134         decl << sglr::pdec::FragmentSource(genFragmentSource(ctx));
1135
1136         decl << sglr::pdec::Uniform("u_coordScale", glu::TYPE_FLOAT);
1137         decl << sglr::pdec::Uniform("u_colorScale", glu::TYPE_FLOAT);
1138
1139         return decl;
1140 }
1141
1142 void ContextArrayPack::updateProgram (void)
1143 {
1144         delete m_program;
1145         m_program = new ContextShaderProgram(m_renderCtx, m_arrays);
1146 }
1147
1148 void ContextArrayPack::render (Array::Primitive primitive, int firstVertex, int vertexCount, bool useVao, float coordScale, float colorScale)
1149 {
1150         deUint32 program = 0;
1151         deUint32 vaoId = 0;
1152
1153         updateProgram();
1154
1155         m_ctx.viewport(0, 0, m_screen.getWidth(), m_screen.getHeight());
1156         m_ctx.clearColor(0.0, 0.0, 0.0, 1.0);
1157         m_ctx.clear(GL_COLOR_BUFFER_BIT);
1158
1159         program = m_ctx.createProgram(m_program);
1160
1161         m_ctx.useProgram(program);
1162         GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glUseProgram()");
1163
1164         m_ctx.uniform1f(m_ctx.getUniformLocation(program, "u_coordScale"), coordScale);
1165         m_ctx.uniform1f(m_ctx.getUniformLocation(program, "u_colorScale"), colorScale);
1166
1167         if (useVao)
1168         {
1169                 m_ctx.genVertexArrays(1, &vaoId);
1170                 m_ctx.bindVertexArray(vaoId);
1171         }
1172
1173         for (int arrayNdx = 0; arrayNdx < (int)m_arrays.size(); arrayNdx++)
1174         {
1175                 if (m_arrays[arrayNdx]->isBound())
1176                 {
1177                         std::stringstream attribName;
1178                         attribName << "a_" << m_arrays[arrayNdx]->getAttribNdx();
1179
1180                         deUint32 loc = m_ctx.getAttribLocation(program, attribName.str().c_str());
1181                         m_ctx.enableVertexAttribArray(loc);
1182                         GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glEnableVertexAttribArray()");
1183
1184                         m_arrays[arrayNdx]->glBind(loc);
1185                 }
1186         }
1187
1188         DE_ASSERT((firstVertex % 6) == 0);
1189         m_ctx.drawArrays(ContextArray::primitiveToGL(primitive), firstVertex, vertexCount - firstVertex);
1190         GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawArrays()");
1191
1192         for (int arrayNdx = 0; arrayNdx < (int)m_arrays.size(); arrayNdx++)
1193         {
1194                 if (m_arrays[arrayNdx]->isBound())
1195                 {
1196                         std::stringstream attribName;
1197                         attribName << "a_" << m_arrays[arrayNdx]->getAttribNdx();
1198
1199                         deUint32 loc = m_ctx.getAttribLocation(program, attribName.str().c_str());
1200
1201                         m_ctx.disableVertexAttribArray(loc);
1202                         GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDisableVertexAttribArray()");
1203                 }
1204         }
1205
1206         if (useVao)
1207                 m_ctx.deleteVertexArrays(1, &vaoId);
1208
1209         m_ctx.deleteProgram(program);
1210         m_ctx.useProgram(0);
1211         m_ctx.readPixels(m_screen, 0, 0, m_screen.getWidth(), m_screen.getHeight());
1212 }
1213
1214 // GLValue
1215
1216 GLValue GLValue::getMaxValue (Array::InputType type)
1217 {
1218         GLValue rangesHi[(int)Array::INPUTTYPE_LAST];
1219
1220         rangesHi[(int)Array::INPUTTYPE_FLOAT]                   = GLValue(Float::create(127.0f));
1221         rangesHi[(int)Array::INPUTTYPE_DOUBLE]                  = GLValue(Double::create(127.0f));
1222         rangesHi[(int)Array::INPUTTYPE_BYTE]                    = GLValue(Byte::create(127));
1223         rangesHi[(int)Array::INPUTTYPE_UNSIGNED_BYTE]   = GLValue(Ubyte::create(255));
1224         rangesHi[(int)Array::INPUTTYPE_UNSIGNED_SHORT]  = GLValue(Ushort::create(65530));
1225         rangesHi[(int)Array::INPUTTYPE_SHORT]                   = GLValue(Short::create(32760));
1226         rangesHi[(int)Array::INPUTTYPE_FIXED]                   = GLValue(Fixed::create(32760));
1227         rangesHi[(int)Array::INPUTTYPE_INT]                             = GLValue(Int::create(2147483647));
1228         rangesHi[(int)Array::INPUTTYPE_UNSIGNED_INT]    = GLValue(Uint::create(4294967295u));
1229         rangesHi[(int)Array::INPUTTYPE_HALF]                    = GLValue(Half::create(256.0f));
1230
1231         return rangesHi[(int)type];
1232 }
1233
1234 GLValue GLValue::getMinValue (Array::InputType type)
1235 {
1236         GLValue rangesLo[(int)Array::INPUTTYPE_LAST];
1237
1238         rangesLo[(int)Array::INPUTTYPE_FLOAT]                   = GLValue(Float::create(-127.0f));
1239         rangesLo[(int)Array::INPUTTYPE_DOUBLE]                  = GLValue(Double::create(-127.0f));
1240         rangesLo[(int)Array::INPUTTYPE_BYTE]                    = GLValue(Byte::create(-127));
1241         rangesLo[(int)Array::INPUTTYPE_UNSIGNED_BYTE]   = GLValue(Ubyte::create(0));
1242         rangesLo[(int)Array::INPUTTYPE_UNSIGNED_SHORT]  = GLValue(Ushort::create(0));
1243         rangesLo[(int)Array::INPUTTYPE_SHORT]                   = GLValue(Short::create(-32760));
1244         rangesLo[(int)Array::INPUTTYPE_FIXED]                   = GLValue(Fixed::create(-32760));
1245         rangesLo[(int)Array::INPUTTYPE_INT]                             = GLValue(Int::create(-2147483647));
1246         rangesLo[(int)Array::INPUTTYPE_UNSIGNED_INT]    = GLValue(Uint::create(0));
1247         rangesLo[(int)Array::INPUTTYPE_HALF]                    = GLValue(Half::create(-256.0f));
1248
1249         return rangesLo[(int)type];
1250 }
1251
1252 float GLValue::toFloat (void) const
1253 {
1254         switch (type)
1255         {
1256                 case Array::INPUTTYPE_FLOAT:
1257                         return fl.getValue();
1258                         break;
1259
1260                 case Array::INPUTTYPE_BYTE:
1261                         return b.getValue();
1262                         break;
1263
1264                 case Array::INPUTTYPE_UNSIGNED_BYTE:
1265                         return ub.getValue();
1266                         break;
1267
1268                 case Array::INPUTTYPE_SHORT:
1269                         return s.getValue();
1270                         break;
1271
1272                 case Array::INPUTTYPE_UNSIGNED_SHORT:
1273                         return us.getValue();
1274                         break;
1275
1276                 case Array::INPUTTYPE_FIXED:
1277                 {
1278                         int maxValue = 65536;
1279                         return (float)(double(2 * fi.getValue() + 1) / (maxValue - 1));
1280
1281                         break;
1282                 }
1283
1284                 case Array::INPUTTYPE_UNSIGNED_INT:
1285                         return (float)ui.getValue();
1286                         break;
1287
1288                 case Array::INPUTTYPE_INT:
1289                         return (float)i.getValue();
1290                         break;
1291
1292                 case Array::INPUTTYPE_HALF:
1293                         return h.to<float>();
1294                         break;
1295
1296                 case Array::INPUTTYPE_DOUBLE:
1297                         return (float)d.getValue();
1298                         break;
1299
1300                 default:
1301                         DE_ASSERT(false);
1302                         return 0.0f;
1303                         break;
1304         };
1305 }
1306
1307 class RandomArrayGenerator
1308 {
1309 public:
1310         static char*    generateArray                   (int seed, GLValue min, GLValue max, int count, int componentCount, int stride, Array::InputType type);
1311         static char*    generateQuads                   (int seed, int count, int componentCount, int offset, int stride, Array::Primitive primitive, Array::InputType type, GLValue min, GLValue max, float gridSize);
1312         static char*    generatePerQuad                 (int seed, int count, int componentCount, int stride, Array::Primitive primitive, Array::InputType type, GLValue min, GLValue max);
1313
1314 private:
1315         template<typename T>
1316         static char*    createQuads             (int seed, int count, int componentCount, int offset, int stride, Array::Primitive primitive, T min, T max, float gridSize);
1317         template<typename T>
1318         static char*    createPerQuads  (int seed, int count, int componentCount, int stride, Array::Primitive primitive, T min, T max);
1319         static char*    createQuadsPacked (int seed, int count, int componentCount, int offset, int stride, Array::Primitive primitive);
1320         static void             setData                 (char* data, Array::InputType type, deRandom& rnd, GLValue min, GLValue max);
1321 };
1322
1323 void RandomArrayGenerator::setData (char* data, Array::InputType type, deRandom& rnd, GLValue min, GLValue max)
1324 {
1325         switch (type)
1326         {
1327                 case Array::INPUTTYPE_FLOAT:
1328                 {
1329                         alignmentSafeAssignment<float>(data, getRandom<GLValue::Float>(rnd, min.fl, max.fl));
1330                         break;
1331                 }
1332
1333                 case Array::INPUTTYPE_DOUBLE:
1334                 {
1335                         alignmentSafeAssignment<double>(data, getRandom<GLValue::Float>(rnd, min.fl, max.fl));
1336                         break;
1337                 }
1338
1339                 case Array::INPUTTYPE_SHORT:
1340                 {
1341                         alignmentSafeAssignment<deInt16>(data, getRandom<GLValue::Short>(rnd, min.s, max.s));
1342                         break;
1343                 }
1344
1345                 case Array::INPUTTYPE_UNSIGNED_SHORT:
1346                 {
1347                         alignmentSafeAssignment<deUint16>(data, getRandom<GLValue::Ushort>(rnd, min.us, max.us));
1348                         break;
1349                 }
1350
1351                 case Array::INPUTTYPE_BYTE:
1352                 {
1353                         alignmentSafeAssignment<deInt8>(data, getRandom<GLValue::Byte>(rnd, min.b, max.b));
1354                         break;
1355                 }
1356
1357                 case Array::INPUTTYPE_UNSIGNED_BYTE:
1358                 {
1359                         alignmentSafeAssignment<deUint8>(data, getRandom<GLValue::Ubyte>(rnd, min.ub, max.ub));
1360                         break;
1361                 }
1362
1363                 case Array::INPUTTYPE_FIXED:
1364                 {
1365                         alignmentSafeAssignment<deInt32>(data, getRandom<GLValue::Fixed>(rnd, min.fi, max.fi));
1366                         break;
1367                 }
1368
1369                 case Array::INPUTTYPE_INT:
1370                 {
1371                         alignmentSafeAssignment<deInt32>(data, getRandom<GLValue::Int>(rnd, min.i, max.i));
1372                         break;
1373                 }
1374
1375                 case Array::INPUTTYPE_UNSIGNED_INT:
1376                 {
1377                         alignmentSafeAssignment<deUint32>(data, getRandom<GLValue::Uint>(rnd, min.ui, max.ui));
1378                         break;
1379                 }
1380
1381                 case Array::INPUTTYPE_HALF:
1382                 {
1383                         alignmentSafeAssignment<deFloat16>(data, getRandom<GLValue::Half>(rnd, min.h, max.h).getValue());
1384                         break;
1385                 }
1386
1387                 default:
1388                         DE_ASSERT(false);
1389                         break;
1390         }
1391 }
1392
1393 char* RandomArrayGenerator::generateArray (int seed, GLValue min, GLValue max, int count, int componentCount, int stride, Array::InputType type)
1394 {
1395         char* data = NULL;
1396
1397         deRandom rnd;
1398         deRandom_init(&rnd, seed);
1399
1400         if (stride == 0)
1401                 stride = componentCount * Array::inputTypeSize(type);
1402
1403         data = new char[stride * count];
1404
1405         for (int vertexNdx = 0; vertexNdx < count; vertexNdx++)
1406         {
1407                 for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
1408                 {
1409                         setData(&(data[vertexNdx * stride + Array::inputTypeSize(type) * componentNdx]), type, rnd, min, max);
1410                 }
1411         }
1412
1413         return data;
1414 }
1415
1416 char* RandomArrayGenerator::generateQuads (int seed, int count, int componentCount, int offset, int stride, Array::Primitive primitive, Array::InputType type, GLValue min, GLValue max, float gridSize)
1417 {
1418         char* data = DE_NULL;
1419
1420         switch (type)
1421         {
1422                 case Array::INPUTTYPE_FLOAT:
1423                         data = createQuads<GLValue::Float>(seed, count, componentCount, offset, stride, primitive, min.fl, max.fl, gridSize);
1424                         break;
1425
1426                 case Array::INPUTTYPE_FIXED:
1427                         data = createQuads<GLValue::Fixed>(seed, count, componentCount, offset, stride, primitive, min.fi, max.fi, gridSize);
1428                         break;
1429
1430                 case Array::INPUTTYPE_DOUBLE:
1431                         data = createQuads<GLValue::Double>(seed, count, componentCount, offset, stride, primitive, min.d, max.d, gridSize);
1432                         break;
1433
1434                 case Array::INPUTTYPE_BYTE:
1435                         data = createQuads<GLValue::Byte>(seed, count, componentCount, offset, stride, primitive, min.b, max.b, gridSize);
1436                         break;
1437
1438                 case Array::INPUTTYPE_SHORT:
1439                         data = createQuads<GLValue::Short>(seed, count, componentCount, offset, stride, primitive, min.s, max.s, gridSize);
1440                         break;
1441
1442                 case Array::INPUTTYPE_UNSIGNED_BYTE:
1443                         data = createQuads<GLValue::Ubyte>(seed, count, componentCount, offset, stride, primitive, min.ub, max.ub, gridSize);
1444                         break;
1445
1446                 case Array::INPUTTYPE_UNSIGNED_SHORT:
1447                         data = createQuads<GLValue::Ushort>(seed, count, componentCount, offset, stride, primitive, min.us, max.us, gridSize);
1448                         break;
1449
1450                 case Array::INPUTTYPE_UNSIGNED_INT:
1451                         data = createQuads<GLValue::Uint>(seed, count, componentCount, offset, stride, primitive, min.ui, max.ui, gridSize);
1452                         break;
1453
1454                 case Array::INPUTTYPE_INT:
1455                         data = createQuads<GLValue::Int>(seed, count, componentCount, offset, stride, primitive, min.i, max.i, gridSize);
1456                         break;
1457
1458                 case Array::INPUTTYPE_HALF:
1459                         data = createQuads<GLValue::Half>(seed, count, componentCount, offset, stride, primitive, min.h, max.h, gridSize);
1460                         break;
1461
1462                 case Array::INPUTTYPE_INT_2_10_10_10:
1463                 case Array::INPUTTYPE_UNSIGNED_INT_2_10_10_10:
1464                         data = createQuadsPacked(seed, count, componentCount, offset, stride, primitive);
1465                         break;
1466
1467                 default:
1468                         DE_ASSERT(false);
1469                         break;
1470         }
1471
1472         return data;
1473 }
1474
1475 char* RandomArrayGenerator::createQuadsPacked (int seed, int count, int componentCount, int offset, int stride, Array::Primitive primitive)
1476 {
1477         DE_ASSERT(componentCount == 4);
1478         DE_UNREF(componentCount);
1479         int quadStride = 0;
1480
1481         if (stride == 0)
1482                 stride = sizeof(deUint32);
1483
1484         switch (primitive)
1485         {
1486                 case Array::PRIMITIVE_TRIANGLES:
1487                         quadStride = stride * 6;
1488                         break;
1489
1490                 default:
1491                         DE_ASSERT(false);
1492                         break;
1493         }
1494
1495         char* const _data               = new char[offset + quadStride * (count - 1) + stride * 5 + componentCount * Array::inputTypeSize(Array::INPUTTYPE_INT_2_10_10_10)]; // last element must be fully in the array
1496         char* const resultData  = _data + offset;
1497
1498         const deUint32 max              = 1024;
1499         const deUint32 min              = 10;
1500         const deUint32 max2             = 4;
1501
1502         deRandom rnd;
1503         deRandom_init(&rnd,  seed);
1504
1505         switch (primitive)
1506         {
1507                 case Array::PRIMITIVE_TRIANGLES:
1508                 {
1509                         for (int quadNdx = 0; quadNdx < count; quadNdx++)
1510                         {
1511                                 deUint32 x1     = min + deRandom_getUint32(&rnd) % (max - min);
1512                                 deUint32 x2     = min + deRandom_getUint32(&rnd) % (max - x1);
1513
1514                                 deUint32 y1     = min + deRandom_getUint32(&rnd) % (max - min);
1515                                 deUint32 y2     = min + deRandom_getUint32(&rnd) % (max - y1);
1516
1517                                 deUint32 z      = min + deRandom_getUint32(&rnd) % (max - min);
1518                                 deUint32 w      = deRandom_getUint32(&rnd) % max2;
1519
1520                                 deUint32 val1 = (w << 30) | (z << 20) | (y1 << 10) | x1;
1521                                 deUint32 val2 = (w << 30) | (z << 20) | (y1 << 10) | x2;
1522                                 deUint32 val3 = (w << 30) | (z << 20) | (y2 << 10) | x1;
1523
1524                                 deUint32 val4 = (w << 30) | (z << 20) | (y2 << 10) | x1;
1525                                 deUint32 val5 = (w << 30) | (z << 20) | (y1 << 10) | x2;
1526                                 deUint32 val6 = (w << 30) | (z << 20) | (y2 << 10) | x2;
1527
1528                                 alignmentSafeAssignment<deUint32>(&(resultData[quadNdx * quadStride + stride * 0]), val1);
1529                                 alignmentSafeAssignment<deUint32>(&(resultData[quadNdx * quadStride + stride * 1]), val2);
1530                                 alignmentSafeAssignment<deUint32>(&(resultData[quadNdx * quadStride + stride * 2]), val3);
1531                                 alignmentSafeAssignment<deUint32>(&(resultData[quadNdx * quadStride + stride * 3]), val4);
1532                                 alignmentSafeAssignment<deUint32>(&(resultData[quadNdx * quadStride + stride * 4]), val5);
1533                                 alignmentSafeAssignment<deUint32>(&(resultData[quadNdx * quadStride + stride * 5]), val6);
1534                         }
1535
1536                         break;
1537                 }
1538
1539                 default:
1540                         DE_ASSERT(false);
1541                         break;
1542         }
1543
1544         return _data;
1545 }
1546
1547 template<typename T>
1548 T roundTo (const T& step, const T& value)
1549 {
1550         return value - (value % step);
1551 }
1552
1553 template<typename T>
1554 char* RandomArrayGenerator::createQuads (int seed, int count, int componentCount, int offset, int stride, Array::Primitive primitive, T min, T max, float gridSize)
1555 {
1556         int componentStride = sizeof(T);
1557         int quadStride = 0;
1558
1559         if (stride == 0)
1560                 stride = componentCount * componentStride;
1561
1562         DE_ASSERT(stride >= componentCount * componentStride);
1563
1564         switch (primitive)
1565         {
1566                 case Array::PRIMITIVE_TRIANGLES:
1567                         quadStride = stride * 6;
1568                         break;
1569
1570                 default:
1571                         DE_ASSERT(false);
1572                         break;
1573         }
1574
1575         char* resultData = new char[offset + quadStride * count];
1576         char* _data = resultData;
1577         resultData = resultData + offset;
1578
1579         deRandom rnd;
1580         deRandom_init(&rnd,  seed);
1581
1582         switch (primitive)
1583         {
1584                 case Array::PRIMITIVE_TRIANGLES:
1585                 {
1586                         const T minQuadSize     = T::fromFloat(deFloatAbs(max.template to<float>() - min.template to<float>()) * gridSize);
1587                         const T minDiff         = minValue<T>() > minQuadSize
1588                                                                 ? minValue<T>()
1589                                                                 : minQuadSize;
1590
1591                         for (int quadNdx = 0; quadNdx < count; ++quadNdx)
1592                         {
1593                                 T x1, x2;
1594                                 T y1, y2;
1595                                 T z, w;
1596
1597                                 // attempt to find a good (i.e not extremely small) quad
1598                                 for (int attemptNdx = 0; attemptNdx < 4; ++attemptNdx)
1599                                 {
1600                                         x1 = roundTo(minDiff, getRandom<T>(rnd, min, max));
1601                                         x2 = roundTo(minDiff, getRandom<T>(rnd, minDiff, abs<T>(max - x1)));
1602
1603                                         y1 = roundTo(minDiff, getRandom<T>(rnd, min, max));
1604                                         y2 = roundTo(minDiff, getRandom<T>(rnd, minDiff, abs<T>(max - y1)));
1605
1606                                         z = (componentCount > 2) ? roundTo(minDiff, (getRandom<T>(rnd, min, max))) : (T::create(0));
1607                                         w = (componentCount > 3) ? roundTo(minDiff, (getRandom<T>(rnd, min, max))) : (T::create(1));
1608
1609                                         // no additional components, all is good
1610                                         if (componentCount <= 2)
1611                                                 break;
1612
1613                                         // The result quad is too thin?
1614                                         if ((deFloatAbs(x2.template to<float>() + z.template to<float>()) < minDiff.template to<float>()) ||
1615                                                 (deFloatAbs(y2.template to<float>() + w.template to<float>()) < minDiff.template to<float>()))
1616                                                 continue;
1617
1618                                         // all ok
1619                                         break;
1620                                 }
1621
1622                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride]), x1);
1623                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + componentStride]), y1);
1624
1625                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride]), x1 + x2);
1626                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride + componentStride]), y1);
1627
1628                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 2]), x1);
1629                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 2 + componentStride]), y1 + y2);
1630
1631                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 3]), x1);
1632                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 3 + componentStride]), y1 + y2);
1633
1634                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 4]), x1 + x2);
1635                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 4 + componentStride]), y1);
1636
1637                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 5]), x1 + x2);
1638                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * 5 + componentStride]), y1 + y2);
1639
1640                                 if (componentCount > 2)
1641                                 {
1642                                         for (int i = 0; i < 6; i++)
1643                                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * i + componentStride * 2]), z);
1644                                 }
1645
1646                                 if (componentCount > 3)
1647                                 {
1648                                         for (int i = 0; i < 6; i++)
1649                                                 alignmentSafeAssignment<T>(&(resultData[quadNdx * quadStride + stride * i + componentStride * 3]), w);
1650                                 }
1651                         }
1652
1653                         break;
1654                 }
1655
1656                 default:
1657                         DE_ASSERT(false);
1658                         break;
1659         }
1660
1661         return _data;
1662 }
1663
1664 char* RandomArrayGenerator::generatePerQuad (int seed, int count, int componentCount, int stride, Array::Primitive primitive, Array::InputType type, GLValue min, GLValue max)
1665 {
1666         char* data = DE_NULL;
1667
1668         switch (type)
1669         {
1670                 case Array::INPUTTYPE_FLOAT:
1671                         data = createPerQuads<GLValue::Float>(seed, count, componentCount, stride, primitive, min.fl, max.fl);
1672                         break;
1673
1674                 case Array::INPUTTYPE_FIXED:
1675                         data = createPerQuads<GLValue::Fixed>(seed, count, componentCount, stride, primitive, min.fi, max.fi);
1676                         break;
1677
1678                 case Array::INPUTTYPE_DOUBLE:
1679                         data = createPerQuads<GLValue::Double>(seed, count, componentCount, stride, primitive, min.d, max.d);
1680                         break;
1681
1682                 case Array::INPUTTYPE_BYTE:
1683                         data = createPerQuads<GLValue::Byte>(seed, count, componentCount, stride, primitive, min.b, max.b);
1684                         break;
1685
1686                 case Array::INPUTTYPE_SHORT:
1687                         data = createPerQuads<GLValue::Short>(seed, count, componentCount, stride, primitive, min.s, max.s);
1688                         break;
1689
1690                 case Array::INPUTTYPE_UNSIGNED_BYTE:
1691                         data = createPerQuads<GLValue::Ubyte>(seed, count, componentCount, stride, primitive, min.ub, max.ub);
1692                         break;
1693
1694                 case Array::INPUTTYPE_UNSIGNED_SHORT:
1695                         data = createPerQuads<GLValue::Ushort>(seed, count, componentCount, stride, primitive, min.us, max.us);
1696                         break;
1697
1698                 case Array::INPUTTYPE_UNSIGNED_INT:
1699                         data = createPerQuads<GLValue::Uint>(seed, count, componentCount, stride, primitive, min.ui, max.ui);
1700                         break;
1701
1702                 case Array::INPUTTYPE_INT:
1703                         data = createPerQuads<GLValue::Int>(seed, count, componentCount, stride, primitive, min.i, max.i);
1704                         break;
1705
1706                 case Array::INPUTTYPE_HALF:
1707                         data = createPerQuads<GLValue::Half>(seed, count, componentCount, stride, primitive, min.h, max.h);
1708                         break;
1709
1710                 default:
1711                         DE_ASSERT(false);
1712                         break;
1713         }
1714
1715         return data;
1716 }
1717
1718 template<typename T>
1719 char* RandomArrayGenerator::createPerQuads (int seed, int count, int componentCount, int stride, Array::Primitive primitive, T min, T max)
1720 {
1721         deRandom rnd;
1722         deRandom_init(&rnd, seed);
1723
1724         int componentStride = sizeof(T);
1725
1726         if (stride == 0)
1727                 stride = componentStride * componentCount;
1728
1729         int quadStride = 0;
1730
1731         switch (primitive)
1732         {
1733                 case Array::PRIMITIVE_TRIANGLES:
1734                         quadStride = stride * 6;
1735                         break;
1736
1737                 default:
1738                         DE_ASSERT(false);
1739                         break;
1740         }
1741
1742         char* data = new char[count * quadStride];
1743
1744         for (int quadNdx = 0; quadNdx < count; quadNdx++)
1745         {
1746                 for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
1747                 {
1748                         T val = getRandom<T>(rnd, min, max);
1749
1750                         alignmentSafeAssignment<T>(data + quadNdx * quadStride + stride * 0 + componentStride * componentNdx, val);
1751                         alignmentSafeAssignment<T>(data + quadNdx * quadStride + stride * 1 + componentStride * componentNdx, val);
1752                         alignmentSafeAssignment<T>(data + quadNdx * quadStride + stride * 2 + componentStride * componentNdx, val);
1753                         alignmentSafeAssignment<T>(data + quadNdx * quadStride + stride * 3 + componentStride * componentNdx, val);
1754                         alignmentSafeAssignment<T>(data + quadNdx * quadStride + stride * 4 + componentStride * componentNdx, val);
1755                         alignmentSafeAssignment<T>(data + quadNdx * quadStride + stride * 5 + componentStride * componentNdx, val);
1756                 }
1757         }
1758
1759         return data;
1760 }
1761
1762 // VertexArrayTest
1763
1764 VertexArrayTest::VertexArrayTest (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name ,const char* desc)
1765         : TestCase                      (testCtx, name, desc)
1766         , m_renderCtx           (renderCtx)
1767         , m_refBuffers          (DE_NULL)
1768         , m_refContext          (DE_NULL)
1769         , m_glesContext         (DE_NULL)
1770         , m_glArrayPack         (DE_NULL)
1771         , m_rrArrayPack         (DE_NULL)
1772         , m_isOk                        (false)
1773         , m_maxDiffRed          (deCeilFloatToInt32(256.0f * (2.0f / (float)(1 << m_renderCtx.getRenderTarget().getPixelFormat().redBits))))
1774         , m_maxDiffGreen        (deCeilFloatToInt32(256.0f * (2.0f / (float)(1 << m_renderCtx.getRenderTarget().getPixelFormat().greenBits))))
1775         , m_maxDiffBlue         (deCeilFloatToInt32(256.0f * (2.0f / (float)(1 << m_renderCtx.getRenderTarget().getPixelFormat().blueBits))))
1776 {
1777 }
1778
1779 VertexArrayTest::~VertexArrayTest (void)
1780 {
1781         deinit();
1782 }
1783
1784 void VertexArrayTest::init (void)
1785 {
1786         const int                                               renderTargetWidth       = de::min(512, m_renderCtx.getRenderTarget().getWidth());
1787         const int                                               renderTargetHeight      = de::min(512, m_renderCtx.getRenderTarget().getHeight());
1788         sglr::ReferenceContextLimits    limits                          (m_renderCtx);
1789
1790         m_glesContext           = new sglr::GLContext(m_renderCtx, m_testCtx.getLog(), sglr::GLCONTEXT_LOG_CALLS | sglr::GLCONTEXT_LOG_PROGRAMS, tcu::IVec4(0, 0, renderTargetWidth, renderTargetHeight));
1791
1792         m_refBuffers            = new sglr::ReferenceContextBuffers(m_renderCtx.getRenderTarget().getPixelFormat(), 0, 0, renderTargetWidth, renderTargetHeight);
1793         m_refContext            = new sglr::ReferenceContext(limits, m_refBuffers->getColorbuffer(), m_refBuffers->getDepthbuffer(), m_refBuffers->getStencilbuffer());
1794
1795         m_glArrayPack           = new ContextArrayPack(m_renderCtx, *m_glesContext);
1796         m_rrArrayPack           = new ContextArrayPack(m_renderCtx, *m_refContext);
1797 }
1798
1799 void VertexArrayTest::deinit (void)
1800 {
1801         delete m_glArrayPack;
1802         delete m_rrArrayPack;
1803         delete m_refBuffers;
1804         delete m_refContext;
1805         delete m_glesContext;
1806
1807         m_glArrayPack   = DE_NULL;
1808         m_rrArrayPack   = DE_NULL;
1809         m_refBuffers    = DE_NULL;
1810         m_refContext    = DE_NULL;
1811         m_glesContext   = DE_NULL;
1812 }
1813
1814 void VertexArrayTest::compare (void)
1815 {
1816         const tcu::Surface&     ref             = m_rrArrayPack->getSurface();
1817         const tcu::Surface&     screen  = m_glArrayPack->getSurface();
1818
1819         if (m_renderCtx.getRenderTarget().getNumSamples() > 1)
1820         {
1821                 // \todo [mika] Improve compare when using multisampling
1822                 m_testCtx.getLog() << tcu::TestLog::Message << "Warning: Comparision of result from multisample render targets are not as stricts as without multisampling. Might produce false positives!" << tcu::TestLog::EndMessage;
1823                 m_isOk = tcu::fuzzyCompare(m_testCtx.getLog(), "Compare Results", "Compare Results", ref.getAccess(), screen.getAccess(), 1.5f, tcu::COMPARE_LOG_RESULT);
1824         }
1825         else
1826         {
1827                 tcu::RGBA               threshold       (m_maxDiffRed, m_maxDiffGreen, m_maxDiffBlue, 255);
1828                 tcu::Surface    error           (ref.getWidth(), ref.getHeight());
1829
1830                 m_isOk = true;
1831
1832                 for (int y = 0; y < ref.getHeight(); y++)
1833                 {
1834                         for (int x = 0; x < ref.getWidth(); x++)
1835                         {
1836                                 tcu::RGBA       refPixel                = ref.getPixel(x, y);
1837                                 tcu::RGBA       screenPixel             = screen.getPixel(x, y);
1838                                 bool            isOkPixel               = false;
1839
1840                                 if (y == 0 || y + 1 == ref.getHeight() || x == 0 || x + 1 == ref.getWidth())
1841                                 {
1842                                         // Don't check borders since the pixel neighborhood is undefined
1843                                         error.setPixel(x, y, tcu::RGBA(screenPixel.getRed(), (screenPixel.getGreen() + 255) / 2, screenPixel.getBlue(), 255));
1844                                         continue;
1845                                 }
1846
1847                                 // Don't do comparisons for this pixel if it belongs to a one-pixel-thin part (i.e. it doesn't have similar-color neighbors in both x and y directions) in both result and reference.
1848                                 // This fixes some false negatives.
1849                                 bool            refThin                 = (!tcu::compareThreshold(refPixel, ref.getPixel(x-1, y  ), threshold) && !tcu::compareThreshold(refPixel, ref.getPixel(x+1, y  ), threshold)) ||
1850                                                                                           (!tcu::compareThreshold(refPixel, ref.getPixel(x  , y-1), threshold) && !tcu::compareThreshold(refPixel, ref.getPixel(x  , y+1), threshold));
1851                                 bool            screenThin              = (!tcu::compareThreshold(screenPixel, screen.getPixel(x-1, y  ), threshold) && !tcu::compareThreshold(screenPixel, screen.getPixel(x+1, y  ), threshold)) ||
1852                                                                                           (!tcu::compareThreshold(screenPixel, screen.getPixel(x  , y-1), threshold) && !tcu::compareThreshold(screenPixel, screen.getPixel(x  , y+1), threshold));
1853
1854                                 if (refThin && screenThin)
1855                                         isOkPixel = true;
1856                                 else
1857                                 {
1858                                         for (int dy = -1; dy < 2 && !isOkPixel; dy++)
1859                                         {
1860                                                 for (int dx = -1; dx < 2 && !isOkPixel; dx++)
1861                                                 {
1862                                                         // Check reference pixel against screen pixel
1863                                                         {
1864                                                                 tcu::RGBA       screenCmpPixel  = screen.getPixel(x+dx, y+dy);
1865                                                                 deUint8         r                               = (deUint8)deAbs32(refPixel.getRed()    - screenCmpPixel.getRed());
1866                                                                 deUint8         g                               = (deUint8)deAbs32(refPixel.getGreen()  - screenCmpPixel.getGreen());
1867                                                                 deUint8         b                               = (deUint8)deAbs32(refPixel.getBlue()   - screenCmpPixel.getBlue());
1868
1869                                                                 if (r <= m_maxDiffRed && g <= m_maxDiffGreen && b <= m_maxDiffBlue)
1870                                                                         isOkPixel = true;
1871                                                         }
1872
1873                                                         // Check screen pixels against reference pixel
1874                                                         {
1875                                                                 tcu::RGBA       refCmpPixel             = ref.getPixel(x+dx, y+dy);
1876                                                                 deUint8         r                               = (deUint8)deAbs32(refCmpPixel.getRed()         - screenPixel.getRed());
1877                                                                 deUint8         g                               = (deUint8)deAbs32(refCmpPixel.getGreen()       - screenPixel.getGreen());
1878                                                                 deUint8         b                               = (deUint8)deAbs32(refCmpPixel.getBlue()        - screenPixel.getBlue());
1879
1880                                                                 if (r <= m_maxDiffRed && g <= m_maxDiffGreen && b <= m_maxDiffBlue)
1881                                                                         isOkPixel = true;
1882                                                         }
1883                                                 }
1884                                         }
1885                                 }
1886
1887                                 if (isOkPixel)
1888                                         error.setPixel(x, y, tcu::RGBA(screen.getPixel(x, y).getRed(), (screen.getPixel(x, y).getGreen() + 255) / 2, screen.getPixel(x, y).getBlue(), 255));
1889                                 else
1890                                 {
1891                                         error.setPixel(x, y, tcu::RGBA(255, 0, 0, 255));
1892                                         m_isOk = false;
1893                                 }
1894                         }
1895                 }
1896
1897                 tcu::TestLog& log = m_testCtx.getLog();
1898                 if (!m_isOk)
1899                 {
1900                         log << TestLog::Message << "Image comparison failed, threshold = (" << m_maxDiffRed << ", " << m_maxDiffGreen << ", " << m_maxDiffBlue << ")" << TestLog::EndMessage;
1901                         log << TestLog::ImageSet("Compare result", "Result of rendering")
1902                                 << TestLog::Image("Result",             "Result",               screen)
1903                                 << TestLog::Image("Reference",  "Reference",    ref)
1904                                 << TestLog::Image("ErrorMask",  "Error mask",   error)
1905                                 << TestLog::EndImageSet;
1906                 }
1907                 else
1908                 {
1909                         log << TestLog::ImageSet("Compare result", "Result of rendering")
1910                                 << TestLog::Image("Result", "Result", screen)
1911                                 << TestLog::EndImageSet;
1912                 }
1913         }
1914 }
1915
1916 // MultiVertexArrayTest
1917
1918 MultiVertexArrayTest::Spec::ArraySpec::ArraySpec(Array::InputType inputType_, Array::OutputType outputType_, Array::Storage storage_, Array::Usage usage_, int componentCount_, int offset_, int stride_, bool normalize_, GLValue min_, GLValue max_)
1919         : inputType             (inputType_)
1920         , outputType    (outputType_)
1921         , storage               (storage_)
1922         , usage                 (usage_)
1923         , componentCount(componentCount_)
1924         , offset                (offset_)
1925         , stride                (stride_)
1926         , normalize             (normalize_)
1927         , min                   (min_)
1928         , max                   (max_)
1929 {
1930 }
1931
1932 std::string MultiVertexArrayTest::Spec::getName (void) const
1933 {
1934         std::stringstream name;
1935
1936         for (size_t ndx = 0; ndx < arrays.size(); ++ndx)
1937         {
1938                 const ArraySpec& array = arrays[ndx];
1939
1940                 if (arrays.size() > 1)
1941                         name << "array" << ndx << "_";
1942
1943                 name
1944                         << Array::storageToString(array.storage) << "_"
1945                         << array.offset << "_"
1946                         << array.stride << "_"
1947                         << Array::inputTypeToString((Array::InputType)array.inputType);
1948                 if (array.inputType != Array::INPUTTYPE_UNSIGNED_INT_2_10_10_10 && array.inputType != Array::INPUTTYPE_INT_2_10_10_10)
1949                         name << array.componentCount;
1950                 name
1951                         << "_"
1952                         << (array.normalize ? "normalized_" : "")
1953                         << Array::outputTypeToString(array.outputType) << "_"
1954                         << Array::usageTypeToString(array.usage) << "_";
1955         }
1956
1957         if (first)
1958                 name << "first" << first << "_";
1959
1960         switch (primitive)
1961         {
1962                 case Array::PRIMITIVE_TRIANGLES:
1963                         name << "quads_";
1964                         break;
1965                 case Array::PRIMITIVE_POINTS:
1966                         name << "points_";
1967                         break;
1968
1969                 default:
1970                         DE_ASSERT(false);
1971                         break;
1972         }
1973
1974         name << drawCount;
1975
1976         return name.str();
1977 }
1978
1979 std::string MultiVertexArrayTest::Spec::getDesc (void) const
1980 {
1981         std::stringstream desc;
1982
1983         for (size_t ndx = 0; ndx < arrays.size(); ++ndx)
1984         {
1985                 const ArraySpec& array = arrays[ndx];
1986
1987                 desc
1988                         << "Array " << ndx << ": "
1989                         << "Storage in " << Array::storageToString(array.storage) << ", "
1990                         << "stride " << array.stride << ", "
1991                         << "input datatype " << Array::inputTypeToString((Array::InputType)array.inputType) << ", "
1992                         << "input component count " << array.componentCount << ", "
1993                         << (array.normalize ? "normalized, " : "")
1994                         << "used as " << Array::outputTypeToString(array.outputType) << ", ";
1995         }
1996
1997         desc
1998                 << "drawArrays(), "
1999                 << "first " << first << ", "
2000                 << drawCount;
2001
2002         switch (primitive)
2003         {
2004                 case Array::PRIMITIVE_TRIANGLES:
2005                         desc << "quads ";
2006                         break;
2007                 case Array::PRIMITIVE_POINTS:
2008                         desc << "points";
2009                         break;
2010
2011                 default:
2012                         DE_ASSERT(false);
2013                         break;
2014         }
2015
2016
2017         return desc.str();
2018 }
2019
2020 MultiVertexArrayTest::MultiVertexArrayTest (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const Spec& spec, const char* name, const char* desc)
2021         : VertexArrayTest       (testCtx, renderCtx, name, desc)
2022         , m_spec                        (spec)
2023         , m_iteration           (0)
2024 {
2025 }
2026
2027 MultiVertexArrayTest::~MultiVertexArrayTest     (void)
2028 {
2029 }
2030
2031 MultiVertexArrayTest::IterateResult MultiVertexArrayTest::iterate (void)
2032 {
2033         if (m_iteration == 0)
2034         {
2035                 const size_t    primitiveSize           = (m_spec.primitive == Array::PRIMITIVE_TRIANGLES) ? (6) : (1); // in non-indexed draw Triangles means rectangles
2036                 float                   coordScale                      = 1.0f;
2037                 float                   colorScale                      = 1.0f;
2038                 const bool              useVao                          = m_renderCtx.getType().getProfile() == glu::PROFILE_CORE;
2039
2040                 // Log info
2041                 m_testCtx.getLog() << TestLog::Message << m_spec.getDesc() << TestLog::EndMessage;
2042
2043                 // Color and Coord scale
2044                 {
2045                         // First array is always position
2046                         {
2047                                 Spec::ArraySpec arraySpec = m_spec.arrays[0];
2048                                 if (arraySpec.inputType == Array::INPUTTYPE_UNSIGNED_INT_2_10_10_10)
2049                                 {
2050                                         if (arraySpec.normalize)
2051                                                 coordScale = 1.0f;
2052                                         else
2053                                                 coordScale = 1.0 / 1024.0;
2054                                 }
2055                                 else if (arraySpec.inputType == Array::INPUTTYPE_INT_2_10_10_10)
2056                                 {
2057                                         if (arraySpec.normalize)
2058                                                 coordScale = 1.0f;
2059                                         else
2060                                                 coordScale = 1.0 / 512.0;
2061                                 }
2062                                 else
2063                                         coordScale = (arraySpec.normalize && !inputTypeIsFloatType(arraySpec.inputType) ? 1.0f : float(0.9 / double(arraySpec.max.toFloat())));
2064
2065                                 if (arraySpec.outputType == Array::OUTPUTTYPE_VEC3 || arraySpec.outputType == Array::OUTPUTTYPE_VEC4
2066                                         || arraySpec.outputType == Array::OUTPUTTYPE_IVEC3 || arraySpec.outputType == Array::OUTPUTTYPE_IVEC4
2067                                         || arraySpec.outputType == Array::OUTPUTTYPE_UVEC3 || arraySpec.outputType == Array::OUTPUTTYPE_UVEC4)
2068                                                 coordScale = coordScale * 0.5f;
2069                         }
2070
2071                         // And other arrays are color-like
2072                         for (int arrayNdx = 1; arrayNdx < (int)m_spec.arrays.size(); arrayNdx++)
2073                         {
2074                                 Spec::ArraySpec arraySpec       = m_spec.arrays[arrayNdx];
2075
2076                                 colorScale *= (arraySpec.normalize && !inputTypeIsFloatType(arraySpec.inputType) ? 1.0f : float(1.0 / double(arraySpec.max.toFloat())));
2077                                 if (arraySpec.outputType == Array::OUTPUTTYPE_VEC4)
2078                                         colorScale *= (arraySpec.normalize && !inputTypeIsFloatType(arraySpec.inputType) ? 1.0f : float(1.0 / double(arraySpec.max.toFloat())));
2079                         }
2080                 }
2081
2082                 // Data
2083                 for (int arrayNdx = 0; arrayNdx < (int)m_spec.arrays.size(); arrayNdx++)
2084                 {
2085                         Spec::ArraySpec arraySpec               = m_spec.arrays[arrayNdx];
2086                         const int               seed                    = int(arraySpec.inputType) + 10 * int(arraySpec.outputType) + 100 * int(arraySpec.storage) + 1000 * int(m_spec.primitive) + 10000 * int(arraySpec.usage) + int(m_spec.drawCount) + 12 * int(arraySpec.componentCount) + int(arraySpec.stride) + int(arraySpec.normalize);
2087                         const char*             data                    = DE_NULL;
2088                         const size_t    stride                  = (arraySpec.stride == 0) ? (arraySpec.componentCount * Array::inputTypeSize(arraySpec.inputType)) : (arraySpec.stride);
2089                         const size_t    bufferSize              = arraySpec.offset + stride * (m_spec.drawCount * primitiveSize - 1) + arraySpec.componentCount  * Array::inputTypeSize(arraySpec.inputType);
2090                         // Snap values to at least 3x3 grid
2091                         const float             gridSize                = 3.0f / (float)(de::min(m_renderCtx.getRenderTarget().getWidth(), m_renderCtx.getRenderTarget().getHeight()) - 1);
2092
2093                         switch (m_spec.primitive)
2094                         {
2095         //                      case Array::PRIMITIVE_POINTS:
2096         //                              data = RandomArrayGenerator::generateArray(seed, arraySpec.min, arraySpec.max, arraySpec.count, arraySpec.componentCount, arraySpec.stride, arraySpec.inputType);
2097         //                              break;
2098                                 case Array::PRIMITIVE_TRIANGLES:
2099                                         if (arrayNdx == 0)
2100                                         {
2101                                                 data = RandomArrayGenerator::generateQuads(seed, m_spec.drawCount, arraySpec.componentCount, arraySpec.offset, arraySpec.stride, m_spec.primitive, arraySpec.inputType, arraySpec.min, arraySpec.max, gridSize);
2102                                         }
2103                                         else
2104                                         {
2105                                                 DE_ASSERT(arraySpec.offset == 0); // \note [jarkko] it just hasn't been implemented
2106                                                 data = RandomArrayGenerator::generatePerQuad(seed, m_spec.drawCount, arraySpec.componentCount, arraySpec.stride, m_spec.primitive, arraySpec.inputType, arraySpec.min, arraySpec.max);
2107                                         }
2108                                         break;
2109
2110                                 default:
2111                                         DE_ASSERT(false);
2112                                         break;
2113                         }
2114
2115                         m_glArrayPack->newArray(arraySpec.storage);
2116                         m_rrArrayPack->newArray(arraySpec.storage);
2117
2118                         m_glArrayPack->getArray(arrayNdx)->data(Array::TARGET_ARRAY, (int)bufferSize, data, arraySpec.usage);
2119                         m_rrArrayPack->getArray(arrayNdx)->data(Array::TARGET_ARRAY, (int)bufferSize, data, arraySpec.usage);
2120
2121                         m_glArrayPack->getArray(arrayNdx)->bind(arrayNdx, arraySpec.offset, arraySpec.componentCount, arraySpec.inputType, arraySpec.outputType, arraySpec.normalize, arraySpec.stride);
2122                         m_rrArrayPack->getArray(arrayNdx)->bind(arrayNdx, arraySpec.offset, arraySpec.componentCount, arraySpec.inputType, arraySpec.outputType, arraySpec.normalize, arraySpec.stride);
2123
2124                         delete [] data;
2125                 }
2126
2127                 try
2128                 {
2129                         m_glArrayPack->render(m_spec.primitive, m_spec.first, m_spec.drawCount * (int)primitiveSize, useVao, coordScale, colorScale);
2130                         m_rrArrayPack->render(m_spec.primitive, m_spec.first, m_spec.drawCount * (int)primitiveSize, useVao, coordScale, colorScale);
2131                 }
2132                 catch (glu::Error& err)
2133                 {
2134                         // GL Errors are ok if the mode is not properly aligned
2135
2136                         m_testCtx.getLog() << TestLog::Message << "Got error: " << err.what() << TestLog::EndMessage;
2137
2138                         if (isUnalignedBufferOffsetTest())
2139                                 m_testCtx.setTestResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned buffers.");
2140                         else if (isUnalignedBufferStrideTest())
2141                                 m_testCtx.setTestResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned stride.");
2142                         else
2143                                 throw;
2144
2145                         return STOP;
2146                 }
2147
2148                 m_iteration++;
2149                 return CONTINUE;
2150         }
2151         else if (m_iteration == 1)
2152         {
2153                 compare();
2154
2155                 if (m_isOk)
2156                 {
2157                         m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
2158                 }
2159                 else
2160                 {
2161                         if (isUnalignedBufferOffsetTest())
2162                                 m_testCtx.setTestResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned buffers.");
2163                         else if (isUnalignedBufferStrideTest())
2164                                 m_testCtx.setTestResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned stride.");
2165                         else
2166                                 m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed.");
2167                 }
2168
2169                 m_iteration++;
2170                 return STOP;
2171         }
2172         else
2173         {
2174                 DE_ASSERT(false);
2175                 return STOP;
2176         }
2177 }
2178
2179 bool MultiVertexArrayTest::isUnalignedBufferOffsetTest (void) const
2180 {
2181         // Buffer offsets should be data type size aligned
2182         for (size_t i = 0; i < m_spec.arrays.size(); ++i)
2183         {
2184                 if (m_spec.arrays[i].storage == Array::STORAGE_BUFFER)
2185                 {
2186                         const bool inputTypePacked = m_spec.arrays[i].inputType == Array::INPUTTYPE_UNSIGNED_INT_2_10_10_10 || m_spec.arrays[i].inputType == Array::INPUTTYPE_INT_2_10_10_10;
2187
2188                         int dataTypeSize = Array::inputTypeSize(m_spec.arrays[i].inputType);
2189                         if (inputTypePacked)
2190                                 dataTypeSize = 4;
2191
2192                         if (m_spec.arrays[i].offset % dataTypeSize != 0)
2193                                 return true;
2194                 }
2195         }
2196
2197         return false;
2198 }
2199
2200 bool MultiVertexArrayTest::isUnalignedBufferStrideTest (void) const
2201 {
2202         // Buffer strides should be data type size aligned
2203         for (size_t i = 0; i < m_spec.arrays.size(); ++i)
2204         {
2205                 if (m_spec.arrays[i].storage == Array::STORAGE_BUFFER)
2206                 {
2207                         const bool inputTypePacked = m_spec.arrays[i].inputType == Array::INPUTTYPE_UNSIGNED_INT_2_10_10_10 || m_spec.arrays[i].inputType == Array::INPUTTYPE_INT_2_10_10_10;
2208
2209                         int dataTypeSize = Array::inputTypeSize(m_spec.arrays[i].inputType);
2210                         if (inputTypePacked)
2211                                 dataTypeSize = 4;
2212
2213                         if (m_spec.arrays[i].stride % dataTypeSize != 0)
2214                                 return true;
2215                 }
2216         }
2217
2218         return false;
2219 }
2220
2221 } // gls
2222 } // deqp