external/vulkancts/modules/vulkan/pipeline/vktPipelineVertexInputTests.cpp

   1 /*------------------------------------------------------------------------
   2  * Vulkan Conformance Tests
   3  * ------------------------
   4  *
   5  * Copyright (c) 2015 The Khronos Group Inc.
   6  * Copyright (c) 2015 Imagination Technologies Ltd.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and/or associated documentation files (the
  10  * "Materials"), to deal in the Materials without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sublicense, and/or sell copies of the Materials, and to
  13  * permit persons to whom the Materials are furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice(s) and this permission notice shall be included
  17  * in all copies or substantial portions of the Materials.
  18  *
  19  * The Materials are Confidential Information as defined by the
  20  * Khronos Membership Agreement until designated non-confidential by Khronos,
  21  * at which point this condition clause shall be removed.
  22  *
  23  * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  26  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  27  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  28  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  29  * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
  30  *
  31  *//*!
  32  * \file
  33  * \brief Vertex Input Tests
  34  *//*--------------------------------------------------------------------*/
  35
  36 #include "vktPipelineVertexInputTests.hpp"
  37 #include "vktPipelineCombinationsIterator.hpp"
  38 #include "vktPipelineClearUtil.hpp"
  39 #include "vktPipelineImageUtil.hpp"
  40 #include "vktPipelineVertexUtil.hpp"
  41 #include "vktPipelineReferenceRenderer.hpp"
  42 #include "vktTestCase.hpp"
  43 #include "vktTestCaseUtil.hpp"
  44 #include "vkImageUtil.hpp"
  45 #include "vkMemUtil.hpp"
  46 #include "vkPrograms.hpp"
  47 #include "vkQueryUtil.hpp"
  48 #include "vkRef.hpp"
  49 #include "vkRefUtil.hpp"
  50 #include "tcuFloat.hpp"
  51 #include "tcuImageCompare.hpp"
  52 #include "deFloat16.h"
  53 #include "deMemory.h"
  54 #include "deStringUtil.hpp"
  55 #include "deUniquePtr.hpp"
  56
  57 #include <sstream>
  58 #include <vector>
  59
  60 namespace vkt
  61 {
  62 namespace pipeline
  63 {
  64
  65 using namespace vk;
  66
  67 namespace
  68 {
  69
  70 bool isSupportedVertexFormat (const InstanceInterface& instanceInterface, VkPhysicalDevice device, VkFormat format)
  71 {
  72         VkFormatProperties  formatProps;
  73         deMemset(&formatProps, 0, sizeof(VkFormatProperties));
  74         instanceInterface.getPhysicalDeviceFormatProperties(device, format, &formatProps);
  75
  76         return (formatProps.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT) != 0u;
  77 }
  78
  79 float getRepresentableDifferenceUnorm (VkFormat format)
  80 {
  81         DE_ASSERT(isVertexFormatUnorm(format) || isVertexFormatSRGB(format));
  82
  83         return 1.0f / float((1 << (getVertexFormatComponentSize(format) * 8)) - 1);
  84 }
  85
  86 float getRepresentableDifferenceSnorm (VkFormat format)
  87 {
  88         DE_ASSERT(isVertexFormatSnorm(format));
  89
  90         return 1.0f / float((1 << (getVertexFormatComponentSize(format) * 8 - 1)) - 1);
  91 }
  92
  93 class VertexInputTest : public vkt::TestCase
  94 {
  95 public:
  96         enum GlslType
  97         {
  98                 GLSL_TYPE_INT,
  99                 GLSL_TYPE_IVEC2,
 100                 GLSL_TYPE_IVEC3,
 101                 GLSL_TYPE_IVEC4,
 102
 103                 GLSL_TYPE_UINT,
 104                 GLSL_TYPE_UVEC2,
 105                 GLSL_TYPE_UVEC3,
 106                 GLSL_TYPE_UVEC4,
 107
 108                 GLSL_TYPE_FLOAT,
 109                 GLSL_TYPE_VEC2,
 110                 GLSL_TYPE_VEC3,
 111                 GLSL_TYPE_VEC4,
 112                 GLSL_TYPE_MAT2,
 113                 GLSL_TYPE_MAT3,
 114                 GLSL_TYPE_MAT4,
 115
 116                 GLSL_TYPE_DOUBLE,
 117                 GLSL_TYPE_DVEC2,
 118                 GLSL_TYPE_DVEC3,
 119                 GLSL_TYPE_DVEC4,
 120                 GLSL_TYPE_DMAT2,
 121                 GLSL_TYPE_DMAT3,
 122                 GLSL_TYPE_DMAT4,
 123
 124                 GLSL_TYPE_COUNT
 125         };
 126
 127         enum GlslBasicType
 128         {
 129                 GLSL_BASIC_TYPE_INT,
 130                 GLSL_BASIC_TYPE_UINT,
 131                 GLSL_BASIC_TYPE_FLOAT,
 132                 GLSL_BASIC_TYPE_DOUBLE
 133         };
 134
 135         enum BindingMapping
 136         {
 137                 BINDING_MAPPING_ONE_TO_ONE,     // Vertex input bindings will not contain data for more than one attribute.
 138                 BINDING_MAPPING_ONE_TO_MANY     // Vertex input bindings can contain data for more than one attribute.
 139         };
 140
 141         struct AttributeInfo
 142         {
 143                 GlslType                                glslType;
 144                 VkFormat                                vkType;
 145                 VkVertexInputRate               inputRate;
 146         };
 147
 148         struct GlslTypeDescription
 149         {
 150                 const char*             name;
 151                 int                             vertexInputComponentCount;
 152                 int                             vertexInputCount;
 153                 GlslBasicType   basicType;
 154         };
 155
 156         static const GlslTypeDescription                s_glslTypeDescriptions[GLSL_TYPE_COUNT];
 157
 158                                                                                         VertexInputTest                         (tcu::TestContext&                                      testContext,
 159                                                                                                                                                  const std::string&                                     name,
 160                                                                                                                                                  const std::string&                                     description,
 161                                                                                                                                                  const std::vector<AttributeInfo>&      attributeInfos,
 162                                                                                                                                                  BindingMapping                                         bindingMapping);
 163
 164         virtual                                                                 ~VertexInputTest                        (void) {}
 165         virtual void                                                    initPrograms                            (SourceCollections& programCollection) const;
 166         virtual TestInstance*                                   createInstance                          (Context& context) const;
 167         static bool                                                             isCompatibleType                        (VkFormat format, GlslType glslType);
 168
 169 private:
 170         std::string                                                             getGlslInputDeclarations        (void) const;
 171         std::string                                                             getGlslVertexCheck                      (void) const;
 172         std::string                                                             getGlslAttributeConditions      (const AttributeInfo& attributeInfo, deUint32 attributeIndex) const;
 173         static tcu::Vec4                                                getFormatThreshold                      (VkFormat format);
 174
 175         const std::vector<AttributeInfo>                m_attributeInfos;
 176         const BindingMapping                                    m_bindingMapping;
 177 };
 178
 179 class GlslTypeCombinationsIterator : public CombinationsIterator< std::vector<VertexInputTest::GlslType> >
 180 {
 181 public:
 182                                                                                                         GlslTypeCombinationsIterator    (deUint32 numValues, deUint32 combinationSize);
 183         virtual                                                                                 ~GlslTypeCombinationsIterator   (void) {}
 184
 185 protected:
 186         virtual std::vector<VertexInputTest::GlslType>  getCombinationValue                             (const std::vector<deUint32>& combination);
 187
 188 private:
 189         std::vector<VertexInputTest::GlslType>                  m_combinationValue;
 190 };
 191
 192 class VertexInputInstance : public vkt::TestInstance
 193 {
 194 public:
 195         struct VertexInputAttributeDescription
 196         {
 197                 VertexInputTest::GlslType                       glslType;
 198                 int                                                                     vertexInputIndex;
 199                 VkVertexInputAttributeDescription       vkDescription;
 200         };
 201
 202         typedef std::vector<VertexInputAttributeDescription>    AttributeDescriptionList;
 203
 204                                                                                         VertexInputInstance                     (Context&                                                                                               context,
 205                                                                                                                                                  const AttributeDescriptionList&                                                attributeDescriptions,
 206                                                                                                                                                  const std::vector<VkVertexInputBindingDescription>&    bindingDescriptions,
 207                                                                                                                                                  const std::vector<VkDeviceSize>&                                               bindingOffsets);
 208
 209         virtual                                                                 ~VertexInputInstance            (void);
 210         virtual tcu::TestStatus                                 iterate                                         (void);
 211
 212
 213         static void                                                             writeVertexInputData            (deUint8* destPtr, const VkVertexInputBindingDescription& bindingDescription, const VkDeviceSize bindingOffset, const AttributeDescriptionList& attributes);
 214         static void                                                             writeVertexInputValue           (deUint8* destPtr, const VertexInputAttributeDescription& attributes, int indexId);
 215
 216 private:
 217         tcu::TestStatus                                                 verifyImage                                     (void);
 218
 219 private:
 220         std::vector<VkBuffer>                                   m_vertexBuffers;
 221         std::vector<Allocation*>                                m_vertexBufferAllocs;
 222
 223         const tcu::IVec2                                                m_renderSize;
 224         const VkFormat                                                  m_colorFormat;
 225
 226         Move<VkImage>                                                   m_colorImage;
 227         de::MovePtr<Allocation>                                 m_colorImageAlloc;
 228         Move<VkImage>                                                   m_depthImage;
 229         Move<VkImageView>                                               m_colorAttachmentView;
 230         Move<VkRenderPass>                                              m_renderPass;
 231         Move<VkFramebuffer>                                             m_framebuffer;
 232
 233         Move<VkShaderModule>                                    m_vertexShaderModule;
 234         Move<VkShaderModule>                                    m_fragmentShaderModule;
 235
 236         Move<VkPipelineLayout>                                  m_pipelineLayout;
 237         Move<VkPipeline>                                                m_graphicsPipeline;
 238
 239         Move<VkCommandPool>                                             m_cmdPool;
 240         Move<VkCommandBuffer>                                   m_cmdBuffer;
 241
 242         Move<VkFence>                                                   m_fence;
 243 };
 244
 245 const VertexInputTest::GlslTypeDescription VertexInputTest::s_glslTypeDescriptions[GLSL_TYPE_COUNT] =
 246 {
 247         { "int",        1, 1, GLSL_BASIC_TYPE_INT },
 248         { "ivec2",      2, 1, GLSL_BASIC_TYPE_INT },
 249         { "ivec3",      3, 1, GLSL_BASIC_TYPE_INT },
 250         { "ivec4",      4, 1, GLSL_BASIC_TYPE_INT },
 251
 252         { "uint",       1, 1, GLSL_BASIC_TYPE_UINT },
 253         { "uvec2",      2, 1, GLSL_BASIC_TYPE_UINT },
 254         { "uvec3",      3, 1, GLSL_BASIC_TYPE_UINT },
 255         { "uvec4",      4, 1, GLSL_BASIC_TYPE_UINT },
 256
 257         { "float",      1, 1, GLSL_BASIC_TYPE_FLOAT },
 258         { "vec2",       2, 1, GLSL_BASIC_TYPE_FLOAT },
 259         { "vec3",       3, 1, GLSL_BASIC_TYPE_FLOAT },
 260         { "vec4",       4, 1, GLSL_BASIC_TYPE_FLOAT },
 261         { "mat2",       2, 2, GLSL_BASIC_TYPE_FLOAT },
 262         { "mat3",       3, 3, GLSL_BASIC_TYPE_FLOAT },
 263         { "mat4",       4, 4, GLSL_BASIC_TYPE_FLOAT },
 264
 265         { "double",     1, 1, GLSL_BASIC_TYPE_DOUBLE },
 266         { "dvec2",      2, 1, GLSL_BASIC_TYPE_DOUBLE },
 267         { "dvec3",      3, 1, GLSL_BASIC_TYPE_DOUBLE },
 268         { "dvec4",      4, 1, GLSL_BASIC_TYPE_DOUBLE },
 269         { "dmat2",      2, 2, GLSL_BASIC_TYPE_DOUBLE },
 270         { "dmat3",      3, 3, GLSL_BASIC_TYPE_DOUBLE },
 271         { "dmat4",      4, 4, GLSL_BASIC_TYPE_DOUBLE }
 272 };
 273
 274
 275 VertexInputTest::VertexInputTest (tcu::TestContext&                                             testContext,
 276                                                                   const std::string&                                    name,
 277                                                                   const std::string&                                    description,
 278                                                                   const std::vector<AttributeInfo>&             attributeInfos,
 279                                                                   BindingMapping                                                bindingMapping)
 280
 281         : vkt::TestCase                 (testContext, name, description)
 282         , m_attributeInfos              (attributeInfos)
 283         , m_bindingMapping              (bindingMapping)
 284 {
 285 }
 286
 287 TestInstance* VertexInputTest::createInstance (Context& context) const
 288 {
 289         // Create enough binding descriptions with random offsets
 290         std::vector<VkVertexInputBindingDescription>    bindingDescriptions;
 291         std::vector<VkDeviceSize>                                               bindingOffsets;
 292
 293         for (size_t bindingNdx = 0; bindingNdx < m_attributeInfos.size() * 2; bindingNdx++)
 294         {
 295                 // Use STEP_RATE_VERTEX in even bindings and STEP_RATE_INSTANCE in odd bindings
 296                 const VkVertexInputRate                                         inputRate                       = (bindingNdx % 2 == 0) ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE;
 297
 298                 // .strideInBytes will be updated when creating the attribute descriptions
 299                 const VkVertexInputBindingDescription   bindingDescription      =
 300                 {
 301                         (deUint32)bindingNdx,   // deUint32                             binding;
 302                         0,                                              // deUint32                             stride;
 303                         inputRate                               // VkVertexInputRate    inputRate;
 304                 };
 305
 306                 bindingDescriptions.push_back(bindingDescription);
 307                 bindingOffsets.push_back(4 * bindingNdx);
 308         }
 309
 310         // Create attribute descriptions, assign them to bindings and update .strideInBytes
 311         std::vector<VertexInputInstance::VertexInputAttributeDescription>       attributeDescriptions;
 312         deUint32                                                                                                                        attributeLocation               = 0;
 313         std::vector<deUint32>                                                                                           attributeOffsets                        (bindingDescriptions.size(), 0);
 314
 315         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 316         {
 317                 const AttributeInfo&            attributeInfo                   = m_attributeInfos[attributeNdx];
 318                 const GlslTypeDescription&      glslTypeDescription             = s_glslTypeDescriptions[attributeInfo.glslType];
 319                 const deUint32                          inputSize                               = getVertexFormatSize(attributeInfo.vkType);
 320                 deUint32                                        attributeBinding;
 321
 322                 if (m_bindingMapping == BINDING_MAPPING_ONE_TO_ONE)
 323                 {
 324                         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
 325                         {
 326                                 attributeBinding = (deUint32)attributeNdx * 2; // Odd binding number
 327                         }
 328                         else // attributeInfo.inputRate == VK_VERTEX_INPUT_STEP_RATE_INSTANCE
 329                         {
 330                                 attributeBinding = (deUint32)attributeNdx * 2 + 1; // Even binding number
 331                         }
 332                 }
 333                 else // m_bindingMapping == BINDING_MAPPING_ONE_TO_MANY
 334                 {
 335                         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
 336                         {
 337                                 attributeBinding = 0;
 338                         }
 339                         else // attributeInfo.inputRate == VK_VERTEX_INPUT_STEP_RATE_INSTANCE
 340                         {
 341                                 attributeBinding = 1;
 342                         }
 343                 }
 344
 345                 for (int descNdx = 0; descNdx < glslTypeDescription.vertexInputCount; descNdx++)
 346                 {
 347                         const VertexInputInstance::VertexInputAttributeDescription attributeDescription =
 348                         {
 349                                 attributeInfo.glslType,                                                 // GlslType     glslType;
 350                                 descNdx,                                                                                // int          index;
 351                                 {
 352                                         attributeLocation,                                                      // deUint32     location;
 353                                         attributeBinding,                                                       // deUint32     binding;
 354                                         attributeInfo.vkType,                                           // VkFormat     format;
 355                                         attributeOffsets[attributeBinding],                     // deUint32     offset;
 356                                 },
 357                         };
 358
 359                         bindingDescriptions[attributeBinding].stride += inputSize;
 360                         attributeOffsets[attributeBinding] += inputSize;
 361
 362                         attributeLocation++;
 363
 364                         attributeDescriptions.push_back(attributeDescription);
 365                 }
 366         }
 367
 368         return new VertexInputInstance(context, attributeDescriptions, bindingDescriptions, bindingOffsets);
 369 }
 370
 371 void VertexInputTest::initPrograms (SourceCollections& programCollection) const
 372 {
 373         std::ostringstream vertexSrc;
 374
 375         vertexSrc << "#version 440\n"
 376                           << getGlslInputDeclarations()
 377                           << "layout(location = 0) out highp vec4 vtxColor;\n"
 378                           << "out gl_PerVertex {\n"
 379                           << "  vec4 gl_Position;\n"
 380                           << "};\n"
 381                           << "double abs (double x) { if (x < 0.0LF) return -x; else return x; }\n" // NOTE: Currently undefined in glslang ??
 382                           << "void main (void)\n"
 383                           << "{\n"
 384                           << getGlslVertexCheck()
 385                           << "}\n";
 386
 387         programCollection.glslSources.add("attribute_test_vert") << glu::VertexSource(vertexSrc.str());
 388
 389         programCollection.glslSources.add("attribute_test_frag") << glu::FragmentSource(
 390                 "#version 440\n"
 391                 "layout(location = 0) in highp vec4 vtxColor;\n"
 392                 "layout(location = 0) out highp vec4 fragColor;\n"
 393                 "void main (void)\n"
 394                 "{\n"
 395                 "       fragColor = vtxColor;\n"
 396                 "}\n");
 397 }
 398
 399 std::string VertexInputTest::getGlslInputDeclarations (void) const
 400 {
 401         std::ostringstream      glslInputs;
 402         deUint32                        location = 0;
 403
 404         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 405         {
 406                 const GlslTypeDescription& glslTypeDesc = s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType];
 407
 408                 glslInputs << "layout(location = " << location << ") in highp " << glslTypeDesc.name << " attr" << attributeNdx << ";\n";
 409                 location += glslTypeDesc.vertexInputCount;
 410         }
 411
 412         return glslInputs.str();
 413 }
 414
 415 std::string VertexInputTest::getGlslVertexCheck (void) const
 416 {
 417         std::ostringstream      glslCode;
 418         int                                     totalInputComponentCount        = 0;
 419
 420
 421         glslCode << "   int okCount = 0;\n";
 422
 423         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 424         {
 425                 glslCode << getGlslAttributeConditions(m_attributeInfos[attributeNdx], (deUint32)attributeNdx);
 426
 427                 const int vertexInputCount      = VertexInputTest::s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType].vertexInputCount;
 428                 totalInputComponentCount        += vertexInputCount * VertexInputTest::s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType].vertexInputComponentCount;
 429         }
 430
 431         glslCode <<
 432                 "       if (okCount == " << totalInputComponentCount << ")\n"
 433                 "       {\n"
 434                 "               if (gl_InstanceID == 0)\n"
 435                 "                       vtxColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
 436                 "               else\n"
 437                 "                       vtxColor = vec4(0.0, 0.0, 1.0, 1.0);\n"
 438                 "       }\n"
 439                 "       else\n"
 440                 "       {\n"
 441                 "               vtxColor = vec4(okCount / float(" << totalInputComponentCount << "), 0.0f, 0.0f, 1.0);\n" <<
 442                 "       }\n\n"
 443                 "       if (gl_InstanceID == 0)\n"
 444                 "       {\n"
 445                 "               if (gl_VertexID == 0) gl_Position = vec4(-1.0, -1.0, 0.0, 1.0);\n"
 446                 "               else if (gl_VertexID == 1) gl_Position = vec4(0.0, -1.0, 0.0, 1.0);\n"
 447                 "               else if (gl_VertexID == 2) gl_Position = vec4(-1.0, 1.0, 0.0, 1.0);\n"
 448                 "               else if (gl_VertexID == 3) gl_Position = vec4(0.0, 1.0, 0.0, 1.0);\n"
 449                 "               else gl_Position = vec4(0.0);\n"
 450                 "       }\n"
 451                 "       else\n"
 452                 "       {\n"
 453                 "               if (gl_VertexID == 0) gl_Position = vec4(0.0, -1.0, 0.0, 1.0);\n"
 454                 "               else if (gl_VertexID == 1) gl_Position = vec4(1.0, -1.0, 0.0, 1.0);\n"
 455                 "               else if (gl_VertexID == 2) gl_Position = vec4(0.0, 1.0, 0.0, 1.0);\n"
 456                 "               else if (gl_VertexID == 3) gl_Position = vec4(1.0, 1.0, 0.0, 1.0);\n"
 457                 "               else gl_Position = vec4(0.0);\n"
 458                 "       }\n";
 459
 460         return glslCode.str();
 461 }
 462
 463 std::string VertexInputTest::getGlslAttributeConditions (const AttributeInfo& attributeInfo, deUint32 attributeIndex) const
 464 {
 465         std::ostringstream      glslCode;
 466         std::ostringstream      attributeVar;
 467         const std::string       indexId                         = (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX) ? "gl_VertexID" : "gl_InstanceID";
 468         const int                       componentCount          = VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].vertexInputComponentCount;
 469         const int                       vertexInputCount        = VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].vertexInputCount;
 470         const deUint32          totalComponentCount     = componentCount * vertexInputCount;
 471         const tcu::Vec4         threshold                       = getFormatThreshold(attributeInfo.vkType);
 472         deUint32                        componentIndex          = 0;
 473
 474         attributeVar << "attr" << attributeIndex;
 475
 476         glslCode << std::fixed;
 477
 478         for (int columnNdx = 0; columnNdx< vertexInputCount; columnNdx++)
 479         {
 480                 for (int rowNdx = 0; rowNdx < componentCount; rowNdx++)
 481                 {
 482                         std::string accessStr;
 483                         {
 484                                 // Build string representing the access to the attribute component
 485                                 std::ostringstream accessStream;
 486                                 accessStream << attributeVar.str();
 487
 488                                 if (vertexInputCount == 1)
 489                                 {
 490                                         if (componentCount > 1)
 491                                                 accessStream << "[" << rowNdx << "]";
 492                                 }
 493                                 else
 494                                 {
 495                                         accessStream << "[" << columnNdx << "][" << rowNdx << "]";
 496                                 }
 497
 498                                 accessStr = accessStream.str();
 499                         }
 500
 501                         if (isVertexFormatSint(attributeInfo.vkType))
 502                         {
 503                                 glslCode << "\tif (" << accessStr << " == -(" << totalComponentCount << " * " << indexId << " + " << componentIndex << "))\n";
 504                         }
 505                         else if (isVertexFormatUint(attributeInfo.vkType))
 506                         {
 507                                 glslCode << "\tif (" << accessStr << " == uint(" << totalComponentCount << " * " << indexId << " + " << componentIndex << "))\n";
 508                         }
 509                         else if (isVertexFormatSfloat(attributeInfo.vkType))
 510                         {
 511                                 if (VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].basicType == VertexInputTest::GLSL_BASIC_TYPE_DOUBLE)
 512                                 {
 513                                         glslCode << "\tif (abs(" << accessStr << " + double(0.01 * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < double(" << threshold[rowNdx] << "))\n";
 514                                 }
 515                                 else
 516                                 {
 517                                         glslCode << "\tif (abs(" << accessStr << " + (0.01 * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < " << threshold[rowNdx] << ")\n";
 518                                 }
 519                         }
 520                         else if (isVertexFormatSscaled(attributeInfo.vkType))
 521                         {
 522                                 glslCode << "\tif (abs(" << accessStr << " + (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0)) < " << threshold[rowNdx] << ")\n";
 523                         }
 524                         else if (isVertexFormatUscaled(attributeInfo.vkType))
 525                         {
 526                                 glslCode << "\t if (abs(" << accessStr << " - (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0)) < " << threshold[rowNdx] << ")\n";
 527                         }
 528                         else if (isVertexFormatSnorm(attributeInfo.vkType))
 529                         {
 530                                 const float representableDiff = getRepresentableDifferenceSnorm(attributeInfo.vkType);
 531
 532                                 glslCode << "\tif (abs(" << accessStr << " - (-1.0 + " << representableDiff << " * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < " << threshold[rowNdx] << ")\n";
 533                         }
 534                         else if (isVertexFormatUnorm(attributeInfo.vkType) || isVertexFormatSRGB(attributeInfo.vkType))
 535                         {
 536                                 const float representableDiff = getRepresentableDifferenceUnorm(attributeInfo.vkType);
 537
 538                                 glslCode << "\tif (abs(" << accessStr << " - " << "(" << representableDiff << " * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < " << threshold[rowNdx] << ")\n";
 539                         }
 540                         else
 541                         {
 542                                 DE_ASSERT(false);
 543                         }
 544
 545                         glslCode << "\t\tokCount++;\n\n";
 546
 547                         componentIndex++;
 548                 }
 549         }
 550         return glslCode.str();
 551 }
 552
 553 tcu::Vec4 VertexInputTest::getFormatThreshold (VkFormat format)
 554 {
 555         using tcu::Vec4;
 556
 557         switch (format)
 558         {
 559                 case VK_FORMAT_R32_SFLOAT:
 560                 case VK_FORMAT_R32G32_SFLOAT:
 561                 case VK_FORMAT_R32G32B32_SFLOAT:
 562                 case VK_FORMAT_R32G32B32A32_SFLOAT:
 563                 case VK_FORMAT_R64_SFLOAT:
 564                 case VK_FORMAT_R64G64_SFLOAT:
 565                 case VK_FORMAT_R64G64B64_SFLOAT:
 566                 case VK_FORMAT_R64G64B64A64_SFLOAT:
 567                         return Vec4(0.00001f);
 568
 569                 default:
 570                         break;
 571         }
 572
 573         if (isVertexFormatSnorm(format))
 574         {
 575                 return Vec4(1.5f * getRepresentableDifferenceSnorm(format));
 576         }
 577         else if (isVertexFormatUnorm(format))
 578         {
 579                 return Vec4(1.5f * getRepresentableDifferenceUnorm(format));
 580         }
 581
 582         return Vec4(0.001f);
 583 }
 584
 585 GlslTypeCombinationsIterator::GlslTypeCombinationsIterator (deUint32 numValues, deUint32 combinationSize)
 586         : CombinationsIterator< std::vector<VertexInputTest::GlslType> >        (numValues, combinationSize)
 587         , m_combinationValue                                                                                            (std::vector<VertexInputTest::GlslType>(combinationSize))
 588 {
 589         DE_ASSERT(numValues <= VertexInputTest::GLSL_TYPE_COUNT);
 590 }
 591
 592 std::vector<VertexInputTest::GlslType> GlslTypeCombinationsIterator::getCombinationValue (const std::vector<deUint32>& combination)
 593 {
 594         for (size_t combinationItemNdx = 0; combinationItemNdx < combination.size(); combinationItemNdx++)
 595                 m_combinationValue[combinationItemNdx] = (VertexInputTest::GlslType)combination[combinationItemNdx];
 596
 597         return m_combinationValue;
 598 }
 599
 600 VertexInputInstance::VertexInputInstance (Context&                                                                                              context,
 601                                                                                   const AttributeDescriptionList&                                               attributeDescriptions,
 602                                                                                   const std::vector<VkVertexInputBindingDescription>&   bindingDescriptions,
 603                                                                                   const std::vector<VkDeviceSize>&                                              bindingOffsets)
 604         : vkt::TestInstance                     (context)
 605         , m_renderSize                          (16, 16)
 606         , m_colorFormat                         (VK_FORMAT_R8G8B8A8_UNORM)
 607 {
 608         DE_ASSERT(bindingDescriptions.size() == bindingOffsets.size());
 609
 610         const DeviceInterface&          vk                                              = context.getDeviceInterface();
 611         const VkDevice                          vkDevice                                = context.getDevice();
 612         const deUint32                          queueFamilyIndex                = context.getUniversalQueueFamilyIndex();
 613         SimpleAllocator                         memAlloc                                (vk, vkDevice, getPhysicalDeviceMemoryProperties(context.getInstanceInterface(), context.getPhysicalDevice()));
 614         const VkComponentMapping        componentMappingRGBA    = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
 615
 616         // Create color image
 617         {
 618                 const VkImageCreateInfo colorImageParams =
 619                 {
 620                         VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,                                                                            // VkStructureType                      sType;
 621                         DE_NULL,                                                                                                                                        // const void*                          pNext;
 622                         0u,                                                                                                                                                     // VkImageCreateFlags           flags;
 623                         VK_IMAGE_TYPE_2D,                                                                                                                       // VkImageType                          imageType;
 624                         m_colorFormat,                                                                                                                          // VkFormat                                     format;
 625                         { m_renderSize.x(), m_renderSize.y(), 1u },                                                                     // VkExtent3D                           extent;
 626                         1u,                                                                                                                                                     // deUint32                                     mipLevels;
 627                         1u,                                                                                                                                                     // deUint32                                     arrayLayers;
 628                         VK_SAMPLE_COUNT_1_BIT,                                                                                                          // VkSampleCountFlagBits        samples;
 629                         VK_IMAGE_TILING_OPTIMAL,                                                                                                        // VkImageTiling                        tiling;
 630                         VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT,          // VkImageUsageFlags            usage;
 631                         VK_SHARING_MODE_EXCLUSIVE,                                                                                                      // VkSharingMode                        sharingMode;
 632                         1u,                                                                                                                                                     // deUint32                                     queueFamilyIndexCount;
 633                         &queueFamilyIndex,                                                                                                                      // const deUint32*                      pQueueFamilyIndices;
 634                         VK_IMAGE_LAYOUT_UNDEFINED,                                                                                                      // VkImageLayout                        initialLayout;
 635                 };
 636
 637                 m_colorImage                    = createImage(vk, vkDevice, &colorImageParams);
 638
 639                 // Allocate and bind color image memory
 640                 m_colorImageAlloc               = memAlloc.allocate(getImageMemoryRequirements(vk, vkDevice, *m_colorImage), MemoryRequirement::Any);
 641                 VK_CHECK(vk.bindImageMemory(vkDevice, *m_colorImage, m_colorImageAlloc->getMemory(), m_colorImageAlloc->getOffset()));
 642         }
 643
 644         // Create color attachment view
 645         {
 646                 const VkImageViewCreateInfo colorAttachmentViewParams =
 647                 {
 648                         VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,               // VkStructureType                      sType;
 649                         DE_NULL,                                                                                // const void*                          pNext;
 650                         0u,                                                                                             // VkImageViewCreateFlags       flags;
 651                         *m_colorImage,                                                                  // VkImage                                      image;
 652                         VK_IMAGE_VIEW_TYPE_2D,                                                  // VkImageViewType                      viewType;
 653                         m_colorFormat,                                                                  // VkFormat                                     format;
 654                         componentMappingRGBA,                                                   // VkComponentMapping           components;
 655                         { VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u },  // VkImageSubresourceRange      subresourceRange;
 656                 };
 657
 658                 m_colorAttachmentView = createImageView(vk, vkDevice, &colorAttachmentViewParams);
 659         }
 660
 661         // Create render pass
 662         {
 663                 const VkAttachmentDescription colorAttachmentDescription =
 664                 {
 665                         0u,                                                                                                     // VkAttachmentDescriptionFlags         flags;
 666                         m_colorFormat,                                                                          // VkFormat                                                     format;
 667                         VK_SAMPLE_COUNT_1_BIT,                                                          // VkSampleCountFlagBits                        samples;
 668                         VK_ATTACHMENT_LOAD_OP_CLEAR,                                            // VkAttachmentLoadOp                           loadOp;
 669                         VK_ATTACHMENT_STORE_OP_STORE,                                           // VkAttachmentStoreOp                          storeOp;
 670                         VK_ATTACHMENT_LOAD_OP_DONT_CARE,                                        // VkAttachmentLoadOp                           stencilLoadOp;
 671                         VK_ATTACHMENT_STORE_OP_DONT_CARE,                                       // VkAttachmentStoreOp                          stencilStoreOp;
 672                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,                       // VkImageLayout                                        initialLayout;
 673                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL                        // VkImageLayout                                        finalLayout;
 674                 };
 675
 676                 const VkAttachmentReference colorAttachmentReference =
 677                 {
 678                         0u,                                                                                                     // deUint32                     attachment;
 679                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL                        // VkImageLayout        layout;
 680                 };
 681
 682                 const VkSubpassDescription subpassDescription =
 683                 {
 684                         0u,                                                                                                     // VkSubpassDescriptionFlags    flags;
 685                         VK_PIPELINE_BIND_POINT_GRAPHICS,                                        // VkPipelineBindPoint                  pipelineBindPoint;
 686                         0u,                                                                                                     // deUint32                                             inputAttachmentCount;
 687                         DE_NULL,                                                                                        // const VkAttachmentReference* pInputAttachments;
 688                         1u,                                                                                                     // deUint32                                             colorAttachmentCount;
 689                         &colorAttachmentReference,                                                      // const VkAttachmentReference* pColorAttachments;
 690                         DE_NULL,                                                                                        // const VkAttachmentReference* pResolveAttachments;
 691                         DE_NULL,                                                                                        // const VkAttachmentReference* pDepthStencilAttachment;
 692                         0u,                                                                                                     // deUint32                                             preserveAttachmentCount;
 693                         DE_NULL                                                                                         // const VkAttachmentReference* pPreserveAttachments;
 694                 };
 695
 696                 const VkRenderPassCreateInfo renderPassParams =
 697                 {
 698                         VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,                      // VkStructureType                                      sType;
 699                         DE_NULL,                                                                                        // const void*                                          pNext;
 700                         0u,                                                                                                     // VkRenderPassCreateFlags                      flags;
 701                         1u,                                                                                                     // deUint32                                                     attachmentCount;
 702                         &colorAttachmentDescription,                                            // const VkAttachmentDescription*       pAttachments;
 703                         1u,                                                                                                     // deUint32                                                     subpassCount;
 704                         &subpassDescription,                                                            // const VkSubpassDescription*          pSubpasses;
 705                         0u,                                                                                                     // deUint32                                                     dependencyCount;
 706                         DE_NULL                                                                                         // const VkSubpassDependency*           pDependencies;
 707                 };
 708
 709                 m_renderPass = createRenderPass(vk, vkDevice, &renderPassParams);
 710         }
 711
 712         // Create framebuffer
 713         {
 714                 const VkFramebufferCreateInfo framebufferParams =
 715                 {
 716                         VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,                      // VkStructureType                      sType;
 717                         DE_NULL,                                                                                        // const void*                          pNext;
 718                         0u,                                                                                                     // VkFramebufferCreateFlags     flags;
 719                         *m_renderPass,                                                                          // VkRenderPass                         renderPass;
 720                         1u,                                                                                                     // deUint32                                     attachmentCount;
 721                         &m_colorAttachmentView.get(),                                           // const VkImageView*           pAttachments;
 722                         (deUint32)m_renderSize.x(),                                                     // deUint32                                     width;
 723                         (deUint32)m_renderSize.y(),                                                     // deUint32                                     height;
 724                         1u                                                                                                      // deUint32                                     layers;
 725                 };
 726
 727                 m_framebuffer = createFramebuffer(vk, vkDevice, &framebufferParams);
 728         }
 729
 730         // Create pipeline layout
 731         {
 732                 const VkPipelineLayoutCreateInfo pipelineLayoutParams =
 733                 {
 734                         VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,          // VkStructureType                                      sType;
 735                         DE_NULL,                                                                                        // const void*                                          pNext;
 736                         0u,                                                                                                     // VkPipelineLayoutCreateFlags          flags;
 737                         0u,                                                                                                     // deUint32                                                     setLayoutCount;
 738                         DE_NULL,                                                                                        // const VkDescriptorSetLayout*         pSetLayouts;
 739                         0u,                                                                                                     // deUint32                                                     pushConstantRangeCount;
 740                         DE_NULL                                                                                         // const VkPushConstantRange*           pPushConstantRanges;
 741                 };
 742
 743                 m_pipelineLayout = createPipelineLayout(vk, vkDevice, &pipelineLayoutParams);
 744         }
 745
 746         m_vertexShaderModule    = createShaderModule(vk, vkDevice, m_context.getBinaryCollection().get("attribute_test_vert"), 0);
 747         m_fragmentShaderModule  = createShaderModule(vk, vkDevice, m_context.getBinaryCollection().get("attribute_test_frag"), 0);
 748
 749
 750         // Create pipeline
 751         {
 752                 const VkPipelineShaderStageCreateInfo shaderStageParams[2] =
 753                 {
 754                         {
 755                                 VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,            // VkStructureType                                              sType;
 756                                 DE_NULL,                                                                                                        // const void*                                                  pNext;
 757                                 0u,                                                                                                                     // VkPipelineShaderStageCreateFlags             flags;
 758                                 VK_SHADER_STAGE_VERTEX_BIT,                                                                     // VkShaderStageFlagBits                                stage;
 759                                 *m_vertexShaderModule,                                                                          // VkShaderModule                                               module;
 760                                 "main",                                                                                                         // const char*                                                  pName;
 761                                 DE_NULL                                                                                                         // const VkSpecializationInfo*                  pSpecializationInfo;
 762                         },
 763                         {
 764                                 VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,            // VkStructureType                                              sType;
 765                                 DE_NULL,                                                                                                        // const void*                                                  pNext;
 766                                 0u,                                                                                                                     // VkPipelineShaderStageCreateFlags             flags;
 767                                 VK_SHADER_STAGE_FRAGMENT_BIT,                                                           // VkShaderStageFlagBits                                stage;
 768                                 *m_fragmentShaderModule,                                                                        // VkShaderModule                                               module;
 769                                 "main",                                                                                                         // const char*                                                  pName;
 770                                 DE_NULL                                                                                                         // const VkSpecializationInfo*                  pSpecializationInfo;
 771                         }
 772                 };
 773
 774                 // Create vertex attribute array and check if their VK formats are supported
 775                 std::vector<VkVertexInputAttributeDescription> vkAttributeDescriptions;
 776                 for (size_t attributeNdx = 0; attributeNdx < attributeDescriptions.size(); attributeNdx++)
 777                 {
 778                         const VkVertexInputAttributeDescription& attributeDescription = attributeDescriptions[attributeNdx].vkDescription;
 779
 780                         if (!isSupportedVertexFormat(context.getInstanceInterface(), context.getPhysicalDevice(), attributeDescription.format))
 781                                 throw tcu::NotSupportedError(std::string("Unsupported format for vertex input: ") + getFormatName(attributeDescription.format));
 782
 783                         vkAttributeDescriptions.push_back(attributeDescription);
 784                 }
 785
 786                 const VkPipelineVertexInputStateCreateInfo      vertexInputStateParams  =
 787                 {
 788                         VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,              // VkStructureType                                                      sType;
 789                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 790                         0u,                                                                                                                             // VkPipelineVertexInputStateCreateFlags        flags;
 791                         (deUint32)bindingDescriptions.size(),                                                   // deUint32                                                                     vertexBindingDescriptionCount;
 792                         bindingDescriptions.data(),                                                                             // const VkVertexInputBindingDescription*       pVertexBindingDescriptions;
 793                         (deUint32)vkAttributeDescriptions.size(),                                               // deUint32                                                                     vertexAttributeDescriptionCount;
 794                         vkAttributeDescriptions.data()                                                                  // const VkVertexInputAttributeDescription*     pVertexAttributeDescriptions;
 795                 };
 796
 797                 const VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateParams =
 798                 {
 799                         VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,    // VkStructureType                                                      sType;
 800                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 801                         0u,                                                                                                                             // VkPipelineInputAssemblyStateCreateFlags      flags;
 802                         VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,                                                   // VkPrimitiveTopology                                          topology;
 803                         false                                                                                                                   // VkBool32                                                                     primitiveRestartEnable;
 804                 };
 805
 806                 const VkViewport viewport =
 807                 {
 808                         0.0f,                                           // float        x;
 809                         0.0f,                                           // float        y;
 810                         (float)m_renderSize.x(),        // float        width;
 811                         (float)m_renderSize.y(),        // float        height;
 812                         0.0f,                                           // float        minDepth;
 813                         1.0f                                            // float        maxDepth;
 814                 };
 815
 816                 const VkRect2D scissor = { { 0, 0 }, { m_renderSize.x(), m_renderSize.y() } };
 817
 818                 const VkPipelineViewportStateCreateInfo viewportStateParams =
 819                 {
 820                         VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,                  // VkStructureType                                              sType;
 821                         DE_NULL,                                                                                                                // const void*                                                  pNext;
 822                         0u,                                                                                                                             // VkPipelineViewportStateCreateFlags   flags;
 823                         1u,                                                                                                                             // deUint32                                                             viewportCount;
 824                         &viewport,                                                                                                              // const VkViewport*                                    pViewports;
 825                         1u,                                                                                                                             // deUint32                                                             scissorCount;
 826                         &scissor                                                                                                                // const VkRect2D*                                              pScissors;
 827                 };
 828
 829                 const VkPipelineRasterizationStateCreateInfo rasterStateParams =
 830                 {
 831                         VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,             // VkStructureType                                                      sType;
 832                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 833                         0u,                                                                                                                             // VkPipelineRasterizationStateCreateFlags      flags;
 834                         false,                                                                                                                  // VkBool32                                                                     depthClampEnable;
 835                         false,                                                                                                                  // VkBool32                                                                     rasterizerDiscardEnable;
 836                         VK_POLYGON_MODE_FILL,                                                                                   // VkPolygonMode                                                        polygonMode;
 837                         VK_CULL_MODE_NONE,                                                                                              // VkCullModeFlags                                                      cullMode;
 838                         VK_FRONT_FACE_COUNTER_CLOCKWISE,                                                                // VkFrontFace                                                          frontFace;
 839                         VK_FALSE,                                                                                                               // VkBool32                                                                     depthBiasEnable;
 840                         0.0f,                                                                                                                   // float                                                                        depthBiasConstantFactor;
 841                         0.0f,                                                                                                                   // float                                                                        depthBiasClamp;
 842                         0.0f,                                                                                                                   // float                                                                        depthBiasSlopeFactor;
 843                         1.0f,                                                                                                                   // float                                                                        lineWidth;
 844                 };
 845
 846                 const VkPipelineColorBlendAttachmentState colorBlendAttachmentState =
 847                 {
 848                         false,                                                                                                                                          // VkBool32                                     blendEnable;
 849                         VK_BLEND_FACTOR_ONE,                                                                                                            // VkBlendFactor                        srcColorBlendFactor;
 850                         VK_BLEND_FACTOR_ZERO,                                                                                                           // VkBlendFactor                        dstColorBlendFactor;
 851                         VK_BLEND_OP_ADD,                                                                                                                        // VkBlendOp                            colorBlendOp;
 852                         VK_BLEND_FACTOR_ONE,                                                                                                            // VkBlendFactor                        srcAlphaBlendFactor;
 853                         VK_BLEND_FACTOR_ZERO,                                                                                                           // VkBlendFactor                        dstAlphaBlendFactor;
 854                         VK_BLEND_OP_ADD,                                                                                                                        // VkBlendOp                            alphaBlendOp;
 855                         VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |                                           // VkColorComponentFlags        colorWriteMask;
 856                                 VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT
 857                 };
 858
 859                 const VkPipelineColorBlendStateCreateInfo colorBlendStateParams =
 860                 {
 861                         VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,       // VkStructureType                                                              sType;
 862                         DE_NULL,                                                                                                        // const void*                                                                  pNext;
 863                         0u,                                                                                                                     // VkPipelineColorBlendStateCreateFlags                 flags;
 864                         false,                                                                                                          // VkBool32                                                                             logicOpEnable;
 865                         VK_LOGIC_OP_COPY,                                                                                       // VkLogicOp                                                                    logicOp;
 866                         1u,                                                                                                                     // deUint32                                                                             attachmentCount;
 867                         &colorBlendAttachmentState,                                                                     // const VkPipelineColorBlendAttachmentState*   pAttachments;
 868                         { 0.0f, 0.0f, 0.0f, 0.0f },                                                                     // float                                                                                blendConstants[4];
 869                 };
 870
 871                 const VkPipelineMultisampleStateCreateInfo      multisampleStateParams  =
 872                 {
 873                         VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,       // VkStructureType                                                      sType;
 874                         DE_NULL,                                                                                                        // const void*                                                          pNext;
 875                         0u,                                                                                                                     // VkPipelineMultisampleStateCreateFlags        flags;
 876                         VK_SAMPLE_COUNT_1_BIT,                                                                          // VkSampleCountFlagBits                                        rasterizationSamples;
 877                         false,                                                                                                          // VkBool32                                                                     sampleShadingEnable;
 878                         0.0f,                                                                                                           // float                                                                        minSampleShading;
 879                         DE_NULL,                                                                                                        // const VkSampleMask*                                          pSampleMask;
 880                         false,                                                                                                          // VkBool32                                                                     alphaToCoverageEnable;
 881                         false                                                                                                           // VkBool32                                                                     alphaToOneEnable;
 882                 };
 883
 884                 const VkPipelineDynamicStateCreateInfo  dynamicStateParams              =
 885                 {
 886                         VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,           // VkStructureType                                              sType;
 887                         DE_NULL,                                                                                                        // const void*                                                  pNext;
 888                         0u,                                                                                                                     // VkPipelineDynamicStateCreateFlags    flags;
 889                         0u,                                                                                                                     // deUint32                                                             dynamicStateCount;
 890                         DE_NULL                                                                                                         // const VkDynamicState*                                pDynamicStates;
 891                 };
 892
 893                 VkPipelineDepthStencilStateCreateInfo depthStencilStateParams =
 894                 {
 895                         VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,     // VkStructureType                                                      sType;
 896                         DE_NULL,                                                                                                        // const void*                                                          pNext;
 897                         0u,                                                                                                                     // VkPipelineDepthStencilStateCreateFlags       flags;
 898                         false,                                                                                                          // VkBool32                                                                     depthTestEnable;
 899                         false,                                                                                                          // VkBool32                                                                     depthWriteEnable;
 900                         VK_COMPARE_OP_LESS,                                                                                     // VkCompareOp                                                          depthCompareOp;
 901                         false,                                                                                                          // VkBool32                                                                     depthBoundsTestEnable;
 902                         false,                                                                                                          // VkBool32                                                                     stencilTestEnable;
 903                         // VkStencilOpState     front;
 904                         {
 905                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  failOp;
 906                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  passOp;
 907                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  depthFailOp;
 908                                 VK_COMPARE_OP_NEVER,    // VkCompareOp  compareOp;
 909                                 0u,                                             // deUint32             compareMask;
 910                                 0u,                                             // deUint32             writeMask;
 911                                 0u,                                             // deUint32             reference;
 912                         },
 913                         // VkStencilOpState     back;
 914                         {
 915                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  failOp;
 916                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  passOp;
 917                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  depthFailOp;
 918                                 VK_COMPARE_OP_NEVER,    // VkCompareOp  compareOp;
 919                                 0u,                                             // deUint32             compareMask;
 920                                 0u,                                             // deUint32             writeMask;
 921                                 0u,                                             // deUint32             reference;
 922                         },
 923                         -1.0f,                                                                                                          // float                        minDepthBounds;
 924                         +1.0f,                                                                                                          // float                        maxDepthBounds;
 925                 };
 926
 927                 const VkGraphicsPipelineCreateInfo graphicsPipelineParams =
 928                 {
 929                         VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,        // VkStructureType                                                                      sType;
 930                         DE_NULL,                                                                                        // const void*                                                                          pNext;
 931                         0u,                                                                                                     // VkPipelineCreateFlags                                                        flags;
 932                         2u,                                                                                                     // deUint32                                                                                     stageCount;
 933                         shaderStageParams,                                                                      // const VkPipelineShaderStageCreateInfo*                       pStages;
 934                         &vertexInputStateParams,                                                        // const VkPipelineVertexInputStateCreateInfo*          pVertexInputState;
 935                         &inputAssemblyStateParams,                                                      // const VkPipelineInputAssemblyStateCreateInfo*        pInputAssemblyState;
 936                         DE_NULL,                                                                                        // const VkPipelineTessellationStateCreateInfo*         pTessellationState;
 937                         &viewportStateParams,                                                           // const VkPipelineViewportStateCreateInfo*                     pViewportState;
 938                         &rasterStateParams,                                                                     // const VkPipelineRasterizationStateCreateInfo*        pRasterizationState;
 939                         &multisampleStateParams,                                                        // const VkPipelineMultisampleStateCreateInfo*          pMultisampleState;
 940                         &depthStencilStateParams,                                                       // const VkPipelineDepthStencilStateCreateInfo*         pDepthStencilState;
 941                         &colorBlendStateParams,                                                         // const VkPipelineColorBlendStateCreateInfo*           pColorBlendState;
 942                         &dynamicStateParams,                                                            // const VkPipelineDynamicStateCreateInfo*                      pDynamicState;
 943                         *m_pipelineLayout,                                                                      // VkPipelineLayout                                                                     layout;
 944                         *m_renderPass,                                                                          // VkRenderPass                                                                         renderPass;
 945                         0u,                                                                                                     // deUint32                                                                                     subpass;
 946                         0u,                                                                                                     // VkPipeline                                                                           basePipelineHandle;
 947                         0u                                                                                                      // deInt32                                                                                      basePipelineIndex;
 948                 };
 949
 950                 m_graphicsPipeline      = createGraphicsPipeline(vk, vkDevice, DE_NULL, &graphicsPipelineParams);
 951         }
 952
 953         // Create vertex buffer
 954         {
 955                 const VkBufferCreateInfo vertexBufferParams =
 956                 {
 957                         VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,           // VkStructureType              sType;
 958                         DE_NULL,                                                                        // const void*                  pNext;
 959                         0u,                                                                                     // VkBufferCreateFlags  flags;
 960                         4096u,                                                                          // VkDeviceSize                 size;
 961                         VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,                      // VkBufferUsageFlags   usage;
 962                         VK_SHARING_MODE_EXCLUSIVE,                                      // VkSharingMode                sharingMode;
 963                         1u,                                                                                     // deUint32                             queueFamilyIndexCount;
 964                         &queueFamilyIndex                                                       // const deUint32*              pQueueFamilyIndices;
 965                 };
 966
 967                 // Upload data for each vertex input binding
 968                 for (deUint32 bindingNdx = 0; bindingNdx < bindingDescriptions.size(); bindingNdx++)
 969                 {
 970                         Move<VkBuffer>                  vertexBuffer            = createBuffer(vk, vkDevice, &vertexBufferParams);
 971                         de::MovePtr<Allocation> vertexBufferAlloc       = memAlloc.allocate(getBufferMemoryRequirements(vk, vkDevice, *vertexBuffer), MemoryRequirement::HostVisible);
 972
 973                         VK_CHECK(vk.bindBufferMemory(vkDevice, *vertexBuffer, vertexBufferAlloc->getMemory(), vertexBufferAlloc->getOffset()));
 974
 975                         writeVertexInputData((deUint8*)vertexBufferAlloc->getHostPtr(), bindingDescriptions[bindingNdx], bindingOffsets[bindingNdx], attributeDescriptions);
 976                         flushMappedMemoryRange(vk, vkDevice, vertexBufferAlloc->getMemory(), vertexBufferAlloc->getOffset(), vertexBufferParams.size);
 977
 978                         m_vertexBuffers.push_back(vertexBuffer.disown());
 979                         m_vertexBufferAllocs.push_back(vertexBufferAlloc.release());
 980                 }
 981         }
 982
 983         // Create command pool
 984         {
 985                 const VkCommandPoolCreateInfo cmdPoolParams =
 986                 {
 987                         VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,     // VkStructureType                              sType;
 988                         DE_NULL,                                                                        // const void*                                  pNext;
 989                         VK_COMMAND_POOL_CREATE_TRANSIENT_BIT,           // VkCommandPoolCreateFlags             flags;
 990                         queueFamilyIndex,                                                       // deUint32                                             queueFamilyIndex;
 991                 };
 992
 993                 m_cmdPool = createCommandPool(vk, vkDevice, &cmdPoolParams);
 994         }
 995
 996         // Create command buffer
 997         {
 998                 const VkCommandBufferAllocateInfo cmdBufferAllocateInfo =
 999                 {
1000                         VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, // VkStructureType                      sType;
1001                         DE_NULL,                                                                                // const void*                          pNext;
1002                         *m_cmdPool,                                                                             // VkCommandPool                        commandPool;
1003                         VK_COMMAND_BUFFER_LEVEL_PRIMARY,                                // VkCommandBufferLevel         level;
1004                         1u                                                                                              // deUint32                                     bufferCount;
1005                 };
1006
1007                 const VkCommandBufferBeginInfo cmdBufferBeginInfo =
1008                 {
1009                         VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,    // VkStructureType                                      sType;
1010                         DE_NULL,                                                                                // const void*                                          pNext;
1011                         0u,                                                                                             // VkCommandBufferUsageFlags            flags;
1012                         DE_NULL,                                                                                // VkRenderPass                                         renderPass;
1013                         0u,                                                                                             // deUint32                                                     subpass;
1014                         DE_NULL,                                                                                // VkFramebuffer                                        framebuffer;
1015                         false,                                                                                  // VkBool32                                                     occlusionQueryEnable;
1016                         0u,                                                                                             // VkQueryControlFlags                          queryFlags;
1017                         0u                                                                                              // VkQueryPipelineStatisticFlags        pipelineStatistics;
1018                 };
1019
1020                 const VkClearValue attachmentClearValue = defaultClearValue(m_colorFormat);
1021
1022                 const VkRenderPassBeginInfo renderPassBeginInfo =
1023                 {
1024                         VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,                               // VkStructureType              sType;
1025                         DE_NULL,                                                                                                // const void*                  pNext;
1026                         *m_renderPass,                                                                                  // VkRenderPass                 renderPass;
1027                         *m_framebuffer,                                                                                 // VkFramebuffer                framebuffer;
1028                         { { 0, 0 }, { m_renderSize.x(), m_renderSize.y() } },   // VkRect2D                             renderArea;
1029                         1u,                                                                                                             // deUint32                             clearValueCount;
1030                         &attachmentClearValue                                                                   // const VkClearValue*  pClearValues;
1031                 };
1032
1033                 m_cmdBuffer = allocateCommandBuffer(vk, vkDevice, &cmdBufferAllocateInfo);
1034
1035                 VK_CHECK(vk.beginCommandBuffer(*m_cmdBuffer, &cmdBufferBeginInfo));
1036                 vk.cmdBeginRenderPass(*m_cmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
1037
1038                 vk.cmdBindPipeline(*m_cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *m_graphicsPipeline);
1039
1040                 std::vector<VkBuffer> vertexBuffers;
1041                 for (size_t bufferNdx = 0; bufferNdx < m_vertexBuffers.size(); bufferNdx++)
1042                         vertexBuffers.push_back(m_vertexBuffers[bufferNdx]);
1043
1044                 if (vertexBuffers.size() <= 1)
1045                 {
1046                         // One vertex buffer
1047                         vk.cmdBindVertexBuffers(*m_cmdBuffer, 0, (deUint32)vertexBuffers.size(), vertexBuffers.data(), bindingOffsets.data());
1048                 }
1049                 else
1050                 {
1051                         // Smoke-test vkCmdBindVertexBuffers(..., startBinding, ... )
1052
1053                         const deUint32 firstHalfLength = (deUint32)vertexBuffers.size() / 2;
1054                         const deUint32 secondHalfLength = firstHalfLength + (deUint32)(vertexBuffers.size() % 2);
1055
1056                         // Bind first half of vertex buffers
1057                         vk.cmdBindVertexBuffers(*m_cmdBuffer, 0, firstHalfLength, vertexBuffers.data(), bindingOffsets.data());
1058
1059                         // Bind second half of vertex buffers
1060                         vk.cmdBindVertexBuffers(*m_cmdBuffer, firstHalfLength, secondHalfLength,
1061                                                                         vertexBuffers.data() + firstHalfLength,
1062                                                                         bindingOffsets.data() + firstHalfLength);
1063                 }
1064
1065                 vk.cmdDraw(*m_cmdBuffer, 4, 2, 0, 0);
1066
1067                 vk.cmdEndRenderPass(*m_cmdBuffer);
1068                 VK_CHECK(vk.endCommandBuffer(*m_cmdBuffer));
1069         }
1070
1071         // Create fence
1072         {
1073                 const VkFenceCreateInfo fenceParams =
1074                 {
1075                         VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,    // VkStructureType              sType;
1076                         DE_NULL,                                                                // const void*                  pNext;
1077                         0u                                                                              // VkFenceCreateFlags   flags;
1078                 };
1079
1080                 m_fence = createFence(vk, vkDevice, &fenceParams);
1081         }
1082 }
1083
1084 VertexInputInstance::~VertexInputInstance (void)
1085 {
1086         const DeviceInterface&          vk                      = m_context.getDeviceInterface();
1087         const VkDevice                          vkDevice        = m_context.getDevice();
1088
1089         for (size_t bufferNdx = 0; bufferNdx < m_vertexBuffers.size(); bufferNdx++)
1090                 vk.destroyBuffer(vkDevice, m_vertexBuffers[bufferNdx], DE_NULL);
1091
1092         for (size_t allocNdx = 0; allocNdx < m_vertexBufferAllocs.size(); allocNdx++)
1093                 delete m_vertexBufferAllocs[allocNdx];
1094 }
1095
1096 void VertexInputInstance::writeVertexInputData(deUint8* destPtr, const VkVertexInputBindingDescription& bindingDescription, const VkDeviceSize bindingOffset, const AttributeDescriptionList& attributes)
1097 {
1098         const deUint32 vertexCount = (bindingDescription.inputRate == VK_VERTEX_INPUT_RATE_VERTEX) ? (4 * 2) : 2;
1099
1100         deUint8* destOffsetPtr = ((deUint8 *)destPtr) + bindingOffset;
1101         for (deUint32 vertexNdx = 0; vertexNdx < vertexCount; vertexNdx++)
1102         {
1103                 deUint32 vertexInputOffset = 0;
1104                 for (size_t attributeNdx = 0; attributeNdx < attributes.size(); attributeNdx++)
1105                 {
1106                         const VertexInputAttributeDescription& attribDesc = attributes[attributeNdx];
1107
1108                         // Only write vertex input data to bindings referenced by attribute descriptions
1109                         if (attribDesc.vkDescription.binding == bindingDescription.binding)
1110                         {
1111                                 writeVertexInputValue(destOffsetPtr + vertexInputOffset, attribDesc, vertexNdx);
1112                                 vertexInputOffset += getVertexFormatSize(attribDesc.vkDescription.format);
1113                         }
1114                 }
1115                 DE_ASSERT(vertexInputOffset <= bindingDescription.stride);
1116                 destOffsetPtr += bindingDescription.stride;
1117         }
1118 }
1119
1120 void writeVertexInputValueSint (deUint8* destPtr, VkFormat format, int componentNdx, deInt32 value)
1121 {
1122         const deUint32  componentSize   = getVertexFormatComponentSize(format);
1123         deUint8*                destFormatPtr   = ((deUint8*)destPtr) + componentSize * componentNdx;
1124
1125         switch (componentSize)
1126         {
1127                 case 1:
1128                         *((deInt8*)destFormatPtr) = (deInt8)value;
1129                         break;
1130
1131                 case 2:
1132                         *((deInt16*)destFormatPtr) = (deInt16)value;
1133                         break;
1134
1135                 case 4:
1136                         *((deInt32*)destFormatPtr) = (deInt32)value;
1137                         break;
1138
1139                 default:
1140                         DE_ASSERT(false);
1141         }
1142 }
1143
1144 void writeVertexInputValueUint (deUint8* destPtr, VkFormat format, int componentNdx, deUint32 value)
1145 {
1146         const deUint32  componentSize   = getVertexFormatComponentSize(format);
1147         deUint8*                destFormatPtr   = ((deUint8*)destPtr) + componentSize * componentNdx;
1148
1149         switch (componentSize)
1150         {
1151                 case 1:
1152                         *((deUint8 *)destFormatPtr) = (deUint8)value;
1153                         break;
1154
1155                 case 2:
1156                         *((deUint16 *)destFormatPtr) = (deUint16)value;
1157                         break;
1158
1159                 case 4:
1160                         *((deUint32 *)destFormatPtr) = (deUint32)value;
1161                         break;
1162
1163                 default:
1164                         DE_ASSERT(false);
1165         }
1166 }
1167
1168 void writeVertexInputValueSfloat (deUint8* destPtr, VkFormat format, int componentNdx, float value)
1169 {
1170         const deUint32  componentSize   = getVertexFormatComponentSize(format);
1171         deUint8*                destFormatPtr   = ((deUint8*)destPtr) + componentSize * componentNdx;
1172
1173         switch (componentSize)
1174         {
1175                 case 2:
1176                         *((deFloat16*)destFormatPtr) = deFloat32To16(value);
1177                         break;
1178
1179                 case 4:
1180                         *((float*)destFormatPtr) = value;
1181                         break;
1182
1183                 default:
1184                         DE_ASSERT(false);
1185         }
1186 }
1187
1188 void VertexInputInstance::writeVertexInputValue (deUint8* destPtr, const VertexInputAttributeDescription& attribute, int indexId)
1189 {
1190         const int               vertexInputCount        = VertexInputTest::s_glslTypeDescriptions[attribute.glslType].vertexInputCount;
1191         const int               componentCount          = VertexInputTest::s_glslTypeDescriptions[attribute.glslType].vertexInputComponentCount;
1192         const deUint32  totalComponentCount     = componentCount * vertexInputCount;
1193         const deUint32  vertexInputIndex        = indexId * totalComponentCount + attribute.vertexInputIndex * componentCount;
1194         const bool              hasBGROrder                     = isVertexFormatComponentOrderBGR(attribute.vkDescription.format);
1195         int                             swizzledNdx;
1196
1197         for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
1198         {
1199                 if (hasBGROrder)
1200                 {
1201                         if (componentNdx == 0)
1202                                 swizzledNdx = 2;
1203                         else if (componentNdx == 2)
1204                                 swizzledNdx = 0;
1205                         else
1206                                 swizzledNdx = componentNdx;
1207                 }
1208                 else
1209                         swizzledNdx = componentNdx;
1210
1211                 switch (attribute.glslType)
1212                 {
1213                         case VertexInputTest::GLSL_TYPE_INT:
1214                         case VertexInputTest::GLSL_TYPE_IVEC2:
1215                         case VertexInputTest::GLSL_TYPE_IVEC3:
1216                         case VertexInputTest::GLSL_TYPE_IVEC4:
1217                                 writeVertexInputValueSint(destPtr, attribute.vkDescription.format, componentNdx, -(deInt32)(vertexInputIndex + swizzledNdx));
1218                                 break;
1219
1220                         case VertexInputTest::GLSL_TYPE_UINT:
1221                         case VertexInputTest::GLSL_TYPE_UVEC2:
1222                         case VertexInputTest::GLSL_TYPE_UVEC3:
1223                         case VertexInputTest::GLSL_TYPE_UVEC4:
1224                                 writeVertexInputValueUint(destPtr, attribute.vkDescription.format, componentNdx, vertexInputIndex + swizzledNdx);
1225                                 break;
1226
1227                         case VertexInputTest::GLSL_TYPE_FLOAT:
1228                         case VertexInputTest::GLSL_TYPE_VEC2:
1229                         case VertexInputTest::GLSL_TYPE_VEC3:
1230                         case VertexInputTest::GLSL_TYPE_VEC4:
1231                         case VertexInputTest::GLSL_TYPE_MAT2:
1232                         case VertexInputTest::GLSL_TYPE_MAT3:
1233                         case VertexInputTest::GLSL_TYPE_MAT4:
1234                                 if (isVertexFormatSfloat(attribute.vkDescription.format))
1235                                 {
1236                                         writeVertexInputValueSfloat(destPtr, attribute.vkDescription.format, componentNdx, -(0.01f * (float)(vertexInputIndex + swizzledNdx)));
1237                                 }
1238                                 else if (isVertexFormatSscaled(attribute.vkDescription.format))
1239                                 {
1240                                         writeVertexInputValueSint(destPtr, attribute.vkDescription.format, componentNdx, -(deInt32)(vertexInputIndex + swizzledNdx));
1241                                 }
1242                                 else if (isVertexFormatUscaled(attribute.vkDescription.format) || isVertexFormatUnorm(attribute.vkDescription.format) || isVertexFormatSRGB(attribute.vkDescription.format))
1243                                 {
1244                                         writeVertexInputValueUint(destPtr, attribute.vkDescription.format, componentNdx, vertexInputIndex + swizzledNdx);
1245                                 }
1246                                 else if (isVertexFormatSnorm(attribute.vkDescription.format))
1247                                 {
1248                                         const deInt32 minIntValue = -((1 << (getVertexFormatComponentSize(attribute.vkDescription.format) * 8 - 1))) + 1;
1249                                         writeVertexInputValueSint(destPtr, attribute.vkDescription.format, componentNdx, minIntValue + (vertexInputIndex + swizzledNdx));
1250                                 }
1251                                 else
1252                                         DE_ASSERT(false);
1253                                 break;
1254
1255                         case VertexInputTest::GLSL_TYPE_DOUBLE:
1256                         case VertexInputTest::GLSL_TYPE_DVEC2:
1257                         case VertexInputTest::GLSL_TYPE_DVEC3:
1258                         case VertexInputTest::GLSL_TYPE_DVEC4:
1259                         case VertexInputTest::GLSL_TYPE_DMAT2:
1260                         case VertexInputTest::GLSL_TYPE_DMAT3:
1261                         case VertexInputTest::GLSL_TYPE_DMAT4:
1262                                 *(reinterpret_cast<double *>(destPtr) + componentNdx) = -0.01 * (vertexInputIndex + swizzledNdx);
1263
1264                                 break;
1265
1266                         default:
1267                                 DE_ASSERT(false);
1268                 }
1269         }
1270 }
1271
1272 tcu::TestStatus VertexInputInstance::iterate (void)
1273 {
1274         const DeviceInterface&          vk                      = m_context.getDeviceInterface();
1275         const VkDevice                          vkDevice        = m_context.getDevice();
1276         const VkQueue                           queue           = m_context.getUniversalQueue();
1277         const VkSubmitInfo                      submitInfo      =
1278         {
1279                 VK_STRUCTURE_TYPE_SUBMIT_INFO,  // VkStructureType                      sType;
1280                 DE_NULL,                                                // const void*                          pNext;
1281                 0u,                                                             // deUint32                                     waitSemaphoreCount;
1282                 DE_NULL,                                                // const VkSemaphore*           pWaitSemaphores;
1283                 1u,                                                             // deUint32                                     commandBufferCount;
1284                 &m_cmdBuffer.get(),                             // const VkCommandBuffer*       pCommandBuffers;
1285                 0u,                                                             // deUint32                                     signalSemaphoreCount;
1286                 DE_NULL                                                 // const VkSemaphore*           pSignalSemaphores;
1287         };
1288
1289         VK_CHECK(vk.resetFences(vkDevice, 1, &m_fence.get()));
1290         VK_CHECK(vk.queueSubmit(queue, 1, &submitInfo, *m_fence));
1291         VK_CHECK(vk.waitForFences(vkDevice, 1, &m_fence.get(), true, ~(0ull) /* infinity*/));
1292
1293         return verifyImage();
1294 }
1295
1296 bool VertexInputTest::isCompatibleType (VkFormat format, GlslType glslType)
1297 {
1298         const GlslTypeDescription glslTypeDesc = s_glslTypeDescriptions[glslType];
1299
1300         if ((deUint32)s_glslTypeDescriptions[glslType].vertexInputComponentCount == getVertexFormatComponentCount(format))
1301         {
1302                 switch (glslTypeDesc.basicType)
1303                 {
1304                         case GLSL_BASIC_TYPE_INT:
1305                                 return isVertexFormatSint(format);
1306
1307                         case GLSL_BASIC_TYPE_UINT:
1308                                 return isVertexFormatUint(format);
1309
1310                         case GLSL_BASIC_TYPE_FLOAT:
1311                                 return getVertexFormatComponentSize(format) <= 4 && (isVertexFormatSfloat(format) || isVertexFormatSnorm(format) || isVertexFormatUnorm(format) || isVertexFormatSscaled(format) || isVertexFormatUscaled(format) || isVertexFormatSRGB(format));
1312
1313                         case GLSL_BASIC_TYPE_DOUBLE:
1314                                 return isVertexFormatSfloat(format) && getVertexFormatComponentSize(format) == 8;
1315
1316                         default:
1317                                 DE_ASSERT(false);
1318                                 return false;
1319                 }
1320         }
1321         else
1322                 return false;
1323 }
1324
1325 tcu::TestStatus VertexInputInstance::verifyImage (void)
1326 {
1327         bool                                                    compareOk                       = false;
1328         const tcu::TextureFormat                tcuColorFormat          = mapVkFormat(m_colorFormat);
1329         tcu::TextureLevel                               reference                       (tcuColorFormat, m_renderSize.x(), m_renderSize.y());
1330         const tcu::PixelBufferAccess    refRedSubregion         (tcu::getSubregion(reference.getAccess(),
1331                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.0f),
1332                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 0.0f),
1333                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.5f),
1334                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 1.0f)));
1335         const tcu::PixelBufferAccess    refBlueSubregion        (tcu::getSubregion(reference.getAccess(),
1336                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.5f),
1337                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 0.0f),
1338                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.5f),
1339                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 1.0f)));
1340
1341         // Create reference image
1342         tcu::clear(reference.getAccess(), defaultClearColor(tcuColorFormat));
1343         tcu::clear(refRedSubregion, tcu::Vec4(1.0f, 0.0f, 0.0f, 1.0f));
1344         tcu::clear(refBlueSubregion, tcu::Vec4(0.0f, 0.0f, 1.0f, 1.0f));
1345
1346         // Compare result with reference image
1347         {
1348                 const DeviceInterface&                  vk                                      = m_context.getDeviceInterface();
1349                 const VkDevice                                  vkDevice                        = m_context.getDevice();
1350                 const VkQueue                                   queue                           = m_context.getUniversalQueue();
1351                 const deUint32                                  queueFamilyIndex        = m_context.getUniversalQueueFamilyIndex();
1352                 SimpleAllocator                                 allocator                       (vk, vkDevice, getPhysicalDeviceMemoryProperties(m_context.getInstanceInterface(), m_context.getPhysicalDevice()));
1353                 de::MovePtr<tcu::TextureLevel>  result                          = readColorAttachment(vk, vkDevice, queue, queueFamilyIndex, allocator, *m_colorImage, m_colorFormat, m_renderSize);
1354
1355                 compareOk = tcu::intThresholdPositionDeviationCompare(m_context.getTestContext().getLog(),
1356                                                                                                                           "IntImageCompare",
1357                                                                                                                           "Image comparison",
1358                                                                                                                           reference.getAccess(),
1359                                                                                                                           result->getAccess(),
1360                                                                                                                           tcu::UVec4(2, 2, 2, 2),
1361                                                                                                                           tcu::IVec3(1, 1, 0),
1362                                                                                                                           true,
1363                                                                                                                           tcu::COMPARE_LOG_RESULT);
1364         }
1365
1366         if (compareOk)
1367                 return tcu::TestStatus::pass("Result image matches reference");
1368         else
1369                 return tcu::TestStatus::fail("Image mismatch");
1370 }
1371
1372 std::string getAttributeInfoCaseName (const VertexInputTest::AttributeInfo& attributeInfo)
1373 {
1374         std::ostringstream      caseName;
1375         const std::string       formatName      = getFormatName(attributeInfo.vkType);
1376
1377         caseName << VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].name << "_as_" << de::toLower(formatName.substr(10)) << "_rate_";
1378
1379         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
1380                 caseName <<  "vertex";
1381         else
1382                 caseName <<  "instance";
1383
1384         return caseName.str();
1385 }
1386
1387 std::string getAttributeInfosCaseName (const std::vector<VertexInputTest::AttributeInfo>& attributeInfos)
1388 {
1389         std::ostringstream caseName;
1390
1391         for (size_t attributeNdx = 0; attributeNdx < attributeInfos.size(); attributeNdx++)
1392         {
1393                 caseName << getAttributeInfoCaseName(attributeInfos[attributeNdx]);
1394
1395                 if (attributeNdx < attributeInfos.size() - 1)
1396                         caseName << "-";
1397         }
1398
1399         return caseName.str();
1400 }
1401
1402 std::string getAttributeInfoDescription (const VertexInputTest::AttributeInfo& attributeInfo)
1403 {
1404         std::ostringstream caseDesc;
1405
1406         caseDesc << std::string(VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].name) << " from type " << getFormatName(attributeInfo.vkType) <<  " with ";
1407
1408         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
1409                 caseDesc <<  "vertex input rate ";
1410         else
1411                 caseDesc <<  "instance input rate ";
1412
1413         return caseDesc.str();
1414 }
1415
1416 std::string getAttributeInfosDescription (const std::vector<VertexInputTest::AttributeInfo>& attributeInfos)
1417 {
1418         std::ostringstream caseDesc;
1419
1420         caseDesc << "Uses vertex attributes:\n";
1421
1422         for (size_t attributeNdx = 0; attributeNdx < attributeInfos.size(); attributeNdx++)
1423                 caseDesc << "\t- " << getAttributeInfoDescription (attributeInfos[attributeNdx]) << "\n";
1424
1425         return caseDesc.str();
1426 }
1427
1428 struct CompatibleFormats
1429 {
1430         VertexInputTest::GlslType       glslType;
1431         std::vector<VkFormat>           compatibleVkFormats;
1432 };
1433
1434 de::MovePtr<tcu::TestCaseGroup> createSingleAttributeTests (tcu::TestContext& testCtx)
1435 {
1436         const VkFormat vertexFormats[] =
1437         {
1438                 // Required, unpacked
1439                 VK_FORMAT_R8_UNORM,
1440                 VK_FORMAT_R8_SNORM,
1441                 VK_FORMAT_R8_UINT,
1442                 VK_FORMAT_R8_SINT,
1443                 VK_FORMAT_R8G8_UNORM,
1444                 VK_FORMAT_R8G8_SNORM,
1445                 VK_FORMAT_R8G8_UINT,
1446                 VK_FORMAT_R8G8_SINT,
1447                 VK_FORMAT_R8G8B8A8_UNORM,
1448                 VK_FORMAT_R8G8B8A8_SNORM,
1449                 VK_FORMAT_R8G8B8A8_UINT,
1450                 VK_FORMAT_R8G8B8A8_SINT,
1451                 VK_FORMAT_B8G8R8A8_UNORM,
1452                 VK_FORMAT_R16_UNORM,
1453                 VK_FORMAT_R16_SNORM,
1454                 VK_FORMAT_R16_UINT,
1455                 VK_FORMAT_R16_SINT,
1456                 VK_FORMAT_R16_SFLOAT,
1457                 VK_FORMAT_R16G16_UNORM,
1458                 VK_FORMAT_R16G16_SNORM,
1459                 VK_FORMAT_R16G16_UINT,
1460                 VK_FORMAT_R16G16_SINT,
1461                 VK_FORMAT_R16G16_SFLOAT,
1462                 VK_FORMAT_R16G16B16A16_UNORM,
1463                 VK_FORMAT_R16G16B16A16_SNORM,
1464                 VK_FORMAT_R16G16B16A16_UINT,
1465                 VK_FORMAT_R16G16B16A16_SINT,
1466                 VK_FORMAT_R16G16B16A16_SFLOAT,
1467                 VK_FORMAT_R32_UINT,
1468                 VK_FORMAT_R32_SINT,
1469                 VK_FORMAT_R32_SFLOAT,
1470                 VK_FORMAT_R32G32_UINT,
1471                 VK_FORMAT_R32G32_SINT,
1472                 VK_FORMAT_R32G32_SFLOAT,
1473                 VK_FORMAT_R32G32B32_UINT,
1474                 VK_FORMAT_R32G32B32_SINT,
1475                 VK_FORMAT_R32G32B32_SFLOAT,
1476                 VK_FORMAT_R32G32B32A32_UINT,
1477                 VK_FORMAT_R32G32B32A32_SINT,
1478                 VK_FORMAT_R32G32B32A32_SFLOAT,
1479
1480                 // Scaled formats
1481                 VK_FORMAT_R8G8_USCALED,
1482                 VK_FORMAT_R8G8_SSCALED,
1483                 VK_FORMAT_R16_USCALED,
1484                 VK_FORMAT_R16_SSCALED,
1485                 VK_FORMAT_R8G8B8_USCALED,
1486                 VK_FORMAT_R8G8B8_SSCALED,
1487                 VK_FORMAT_B8G8R8_USCALED,
1488                 VK_FORMAT_B8G8R8_SSCALED,
1489                 VK_FORMAT_R8G8B8A8_USCALED,
1490                 VK_FORMAT_R8G8B8A8_SSCALED,
1491                 VK_FORMAT_B8G8R8A8_USCALED,
1492                 VK_FORMAT_B8G8R8A8_SSCALED,
1493                 VK_FORMAT_R16G16_USCALED,
1494                 VK_FORMAT_R16G16_SSCALED,
1495                 VK_FORMAT_R16G16B16_USCALED,
1496                 VK_FORMAT_R16G16B16_SSCALED,
1497                 VK_FORMAT_R16G16B16A16_USCALED,
1498                 VK_FORMAT_R16G16B16A16_SSCALED,
1499
1500                 // SRGB formats
1501                 VK_FORMAT_R8_SRGB,
1502                 VK_FORMAT_R8G8_SRGB,
1503                 VK_FORMAT_R8G8B8_SRGB,
1504                 VK_FORMAT_B8G8R8_SRGB,
1505                 VK_FORMAT_R8G8B8A8_SRGB,
1506                 VK_FORMAT_B8G8R8A8_SRGB,
1507
1508                 // Double formats
1509                 VK_FORMAT_R64_SFLOAT,
1510                 VK_FORMAT_R64G64_SFLOAT,
1511                 VK_FORMAT_R64G64B64_SFLOAT,
1512                 VK_FORMAT_R64G64B64A64_SFLOAT,
1513         };
1514
1515         de::MovePtr<tcu::TestCaseGroup> singleAttributeTests (new tcu::TestCaseGroup(testCtx, "single_attribute", "Uses one attribute"));
1516
1517         for (int formatNdx = 0; formatNdx < DE_LENGTH_OF_ARRAY(vertexFormats); formatNdx++)
1518         {
1519                 for (int glslTypeNdx = 0; glslTypeNdx < VertexInputTest::GLSL_TYPE_COUNT; glslTypeNdx++)
1520                 {
1521                         if (VertexInputTest::isCompatibleType(vertexFormats[formatNdx], (VertexInputTest::GlslType)glslTypeNdx))
1522                         {
1523                                 // Create test case for RATE_VERTEX
1524                                 VertexInputTest::AttributeInfo attributeInfo;
1525                                 attributeInfo.vkType    = vertexFormats[formatNdx];
1526                                 attributeInfo.glslType  = (VertexInputTest::GlslType)glslTypeNdx;
1527                                 attributeInfo.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
1528
1529                                 singleAttributeTests->addChild(new VertexInputTest(testCtx,
1530                                                                                                                                    getAttributeInfoCaseName(attributeInfo),
1531                                                                                                                                    getAttributeInfoDescription(attributeInfo),
1532                                                                                                                                    std::vector<VertexInputTest::AttributeInfo>(1, attributeInfo),
1533                                                                                                                                    VertexInputTest::BINDING_MAPPING_ONE_TO_ONE));
1534
1535                                 // Create test case for RATE_INSTANCE
1536                                 attributeInfo.inputRate = VK_VERTEX_INPUT_RATE_INSTANCE;
1537
1538                                 singleAttributeTests->addChild(new VertexInputTest(testCtx,
1539                                                                                                                                    getAttributeInfoCaseName(attributeInfo),
1540                                                                                                                                    getAttributeInfoDescription(attributeInfo),
1541                                                                                                                                    std::vector<VertexInputTest::AttributeInfo>(1, attributeInfo),
1542                                                                                                                                    VertexInputTest::BINDING_MAPPING_ONE_TO_ONE));
1543                         }
1544                 }
1545         }
1546
1547         return singleAttributeTests;
1548 }
1549
1550 de::MovePtr<tcu::TestCaseGroup> createMultipleAttributeTests (tcu::TestContext& testCtx)
1551 {
1552         // Required vertex formats, unpacked
1553         const VkFormat vertexFormats[] =
1554         {
1555                 VK_FORMAT_R8_UNORM,
1556                 VK_FORMAT_R8_SNORM,
1557                 VK_FORMAT_R8_UINT,
1558                 VK_FORMAT_R8_SINT,
1559                 VK_FORMAT_R8G8_UNORM,
1560                 VK_FORMAT_R8G8_SNORM,
1561                 VK_FORMAT_R8G8_UINT,
1562                 VK_FORMAT_R8G8_SINT,
1563                 VK_FORMAT_R8G8B8A8_UNORM,
1564                 VK_FORMAT_R8G8B8A8_SNORM,
1565                 VK_FORMAT_R8G8B8A8_UINT,
1566                 VK_FORMAT_R8G8B8A8_SINT,
1567                 VK_FORMAT_B8G8R8A8_UNORM,
1568                 VK_FORMAT_R16_UNORM,
1569                 VK_FORMAT_R16_SNORM,
1570                 VK_FORMAT_R16_UINT,
1571                 VK_FORMAT_R16_SINT,
1572                 VK_FORMAT_R16_SFLOAT,
1573                 VK_FORMAT_R16G16_UNORM,
1574                 VK_FORMAT_R16G16_SNORM,
1575                 VK_FORMAT_R16G16_UINT,
1576                 VK_FORMAT_R16G16_SINT,
1577                 VK_FORMAT_R16G16_SFLOAT,
1578                 VK_FORMAT_R16G16B16A16_UNORM,
1579                 VK_FORMAT_R16G16B16A16_SNORM,
1580                 VK_FORMAT_R16G16B16A16_UINT,
1581                 VK_FORMAT_R16G16B16A16_SINT,
1582                 VK_FORMAT_R16G16B16A16_SFLOAT,
1583                 VK_FORMAT_R32_UINT,
1584                 VK_FORMAT_R32_SINT,
1585                 VK_FORMAT_R32_SFLOAT,
1586                 VK_FORMAT_R32G32_UINT,
1587                 VK_FORMAT_R32G32_SINT,
1588                 VK_FORMAT_R32G32_SFLOAT,
1589                 VK_FORMAT_R32G32B32_UINT,
1590                 VK_FORMAT_R32G32B32_SINT,
1591                 VK_FORMAT_R32G32B32_SFLOAT,
1592                 VK_FORMAT_R32G32B32A32_UINT,
1593                 VK_FORMAT_R32G32B32A32_SINT,
1594                 VK_FORMAT_R32G32B32A32_SFLOAT
1595         };
1596
1597         de::MovePtr<tcu::TestCaseGroup> multipleAttributeTests (new tcu::TestCaseGroup(testCtx, "multiple_attributes", "Uses more than one attribute"));
1598
1599         // Find compatible VK formats for each GLSL vertex type
1600         CompatibleFormats compatibleFormats[VertexInputTest::GLSL_TYPE_COUNT];
1601         {
1602                 for (int glslTypeNdx = 0; glslTypeNdx < VertexInputTest::GLSL_TYPE_COUNT; glslTypeNdx++)
1603                 {
1604                         for (int formatNdx = 0; formatNdx < DE_LENGTH_OF_ARRAY(vertexFormats); formatNdx++)
1605                         {
1606                                 if (VertexInputTest::isCompatibleType(vertexFormats[formatNdx], (VertexInputTest::GlslType)glslTypeNdx))
1607                                         compatibleFormats[glslTypeNdx].compatibleVkFormats.push_back(vertexFormats[formatNdx]);
1608                         }
1609                 }
1610         }
1611
1612         de::Random                                              randomFunc                              (102030);
1613         GlslTypeCombinationsIterator    glslTypeCombinationsItr (VertexInputTest::GLSL_TYPE_DOUBLE, 3); // Exclude double values, which are not included in vertexFormats
1614         de::MovePtr<tcu::TestCaseGroup> oneToOneAttributeTests  (new tcu::TestCaseGroup(testCtx, "attributes", ""));
1615         de::MovePtr<tcu::TestCaseGroup> oneToManyAttributeTests (new tcu::TestCaseGroup(testCtx, "attributes", ""));
1616
1617         while (glslTypeCombinationsItr.hasNext())
1618         {
1619                 const std::vector<VertexInputTest::GlslType>    glslTypes               = glslTypeCombinationsItr.next();
1620                 std::vector<VertexInputTest::AttributeInfo>             attributeInfos  (glslTypes.size());
1621
1622                 for (size_t attributeNdx = 0; attributeNdx < attributeInfos.size(); attributeNdx++)
1623                 {
1624                         DE_ASSERT(!compatibleFormats[glslTypes[attributeNdx]].compatibleVkFormats.empty());
1625
1626                         // Select a random compatible format
1627                         const std::vector<VkFormat>& formats = compatibleFormats[glslTypes[attributeNdx]].compatibleVkFormats;
1628                         const VkFormat format = formats[randomFunc.getUint32() % formats.size()];
1629
1630                         attributeInfos[attributeNdx].glslType   = glslTypes[attributeNdx];
1631                         attributeInfos[attributeNdx].inputRate  = (attributeNdx % 2 == 0) ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE;
1632                         attributeInfos[attributeNdx].vkType             = format;
1633                 }
1634
1635                 const std::string       caseName        = getAttributeInfosCaseName(attributeInfos);
1636                 const std::string       caseDesc        = getAttributeInfosDescription(attributeInfos);
1637
1638                 oneToOneAttributeTests->addChild(new VertexInputTest(testCtx, caseName, caseDesc, attributeInfos, VertexInputTest::BINDING_MAPPING_ONE_TO_ONE));
1639                 oneToManyAttributeTests->addChild(new VertexInputTest(testCtx, caseName, caseDesc, attributeInfos, VertexInputTest::BINDING_MAPPING_ONE_TO_MANY));
1640         }
1641
1642         de::MovePtr<tcu::TestCaseGroup> bindingOneToOneTests    (new tcu::TestCaseGroup(testCtx, "binding_one_to_one", "Each attribute uses a unique binding"));
1643         bindingOneToOneTests->addChild(oneToOneAttributeTests.release());
1644         multipleAttributeTests->addChild(bindingOneToOneTests.release());
1645
1646         de::MovePtr<tcu::TestCaseGroup> bindingOneToManyTests   (new tcu::TestCaseGroup(testCtx, "binding_one_to_many", "Attributes share the same binding"));
1647         bindingOneToManyTests->addChild(oneToManyAttributeTests.release());
1648         multipleAttributeTests->addChild(bindingOneToManyTests.release());
1649
1650         return multipleAttributeTests;
1651 }
1652
1653 } // anonymous
1654
1655 tcu::TestCaseGroup* createVertexInputTests (tcu::TestContext& testCtx)
1656 {
1657         de::MovePtr<tcu::TestCaseGroup> vertexInputTests (new tcu::TestCaseGroup(testCtx, "vertex_input", ""));
1658
1659         vertexInputTests->addChild(createSingleAttributeTests(testCtx).release());
1660         vertexInputTests->addChild(createMultipleAttributeTests(testCtx).release());
1661
1662         return vertexInputTests.release();
1663 }
1664
1665 } // pipeline
1666 } // vkt