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 PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  22  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  23  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
  26  *
  27  *//*!
  28  * \file
  29  * \brief Vertex Input Tests
  30  *//*--------------------------------------------------------------------*/
  31
  32 #include "vktPipelineVertexInputTests.hpp"
  33 #include "vktPipelineCombinationsIterator.hpp"
  34 #include "vktPipelineClearUtil.hpp"
  35 #include "vktPipelineImageUtil.hpp"
  36 #include "vktPipelineVertexUtil.hpp"
  37 #include "vktPipelineReferenceRenderer.hpp"
  38 #include "vktTestCase.hpp"
  39 #include "vktTestCaseUtil.hpp"
  40 #include "vkImageUtil.hpp"
  41 #include "vkMemUtil.hpp"
  42 #include "vkPrograms.hpp"
  43 #include "vkQueryUtil.hpp"
  44 #include "vkRef.hpp"
  45 #include "vkRefUtil.hpp"
  46 #include "tcuFloat.hpp"
  47 #include "tcuImageCompare.hpp"
  48 #include "deFloat16.h"
  49 #include "deMemory.h"
  50 #include "deStringUtil.hpp"
  51 #include "deUniquePtr.hpp"
  52
  53 #include <sstream>
  54 #include <vector>
  55
  56 namespace vkt
  57 {
  58 namespace pipeline
  59 {
  60
  61 using namespace vk;
  62
  63 namespace
  64 {
  65
  66 bool isSupportedVertexFormat (Context& context, VkFormat format)
  67 {
  68         if (isVertexFormatDouble(format) && !context.getDeviceFeatures().shaderFloat64)
  69                 return false;
  70
  71         VkFormatProperties  formatProps;
  72         deMemset(&formatProps, 0, sizeof(VkFormatProperties));
  73         context.getInstanceInterface().getPhysicalDeviceFormatProperties(context.getPhysicalDevice(), format, &formatProps);
  74
  75         return (formatProps.bufferFeatures & VK_FORMAT_FEATURE_VERTEX_BUFFER_BIT) != 0u;
  76 }
  77
  78 float getRepresentableDifferenceUnorm (VkFormat format)
  79 {
  80         DE_ASSERT(isVertexFormatUnorm(format) || isVertexFormatSRGB(format));
  81
  82         return 1.0f / float((1 << (getVertexFormatComponentSize(format) * 8)) - 1);
  83 }
  84
  85 float getRepresentableDifferenceSnorm (VkFormat format)
  86 {
  87         DE_ASSERT(isVertexFormatSnorm(format));
  88
  89         return 1.0f / float((1 << (getVertexFormatComponentSize(format) * 8 - 1)) - 1);
  90 }
  91
  92 deUint32 getNextMultipleOffset (deUint32 divisor, deUint32 value)
  93 {
  94         if (value % divisor == 0)
  95                 return 0;
  96         else
  97                 return divisor - (value % divisor);
  98 }
  99
 100 class VertexInputTest : public vkt::TestCase
 101 {
 102 public:
 103         enum GlslType
 104         {
 105                 GLSL_TYPE_INT,
 106                 GLSL_TYPE_IVEC2,
 107                 GLSL_TYPE_IVEC3,
 108                 GLSL_TYPE_IVEC4,
 109
 110                 GLSL_TYPE_UINT,
 111                 GLSL_TYPE_UVEC2,
 112                 GLSL_TYPE_UVEC3,
 113                 GLSL_TYPE_UVEC4,
 114
 115                 GLSL_TYPE_FLOAT,
 116                 GLSL_TYPE_VEC2,
 117                 GLSL_TYPE_VEC3,
 118                 GLSL_TYPE_VEC4,
 119                 GLSL_TYPE_MAT2,
 120                 GLSL_TYPE_MAT3,
 121                 GLSL_TYPE_MAT4,
 122
 123                 GLSL_TYPE_DOUBLE,
 124                 GLSL_TYPE_DVEC2,
 125                 GLSL_TYPE_DVEC3,
 126                 GLSL_TYPE_DVEC4,
 127                 GLSL_TYPE_DMAT2,
 128                 GLSL_TYPE_DMAT3,
 129                 GLSL_TYPE_DMAT4,
 130
 131                 GLSL_TYPE_COUNT
 132         };
 133
 134         enum GlslBasicType
 135         {
 136                 GLSL_BASIC_TYPE_INT,
 137                 GLSL_BASIC_TYPE_UINT,
 138                 GLSL_BASIC_TYPE_FLOAT,
 139                 GLSL_BASIC_TYPE_DOUBLE
 140         };
 141
 142         enum BindingMapping
 143         {
 144                 BINDING_MAPPING_ONE_TO_ONE,     // Vertex input bindings will not contain data for more than one attribute.
 145                 BINDING_MAPPING_ONE_TO_MANY     // Vertex input bindings can contain data for more than one attribute.
 146         };
 147
 148         struct AttributeInfo
 149         {
 150                 GlslType                                glslType;
 151                 VkFormat                                vkType;
 152                 VkVertexInputRate               inputRate;
 153         };
 154
 155         struct GlslTypeDescription
 156         {
 157                 const char*             name;
 158                 int                             vertexInputComponentCount;
 159                 int                             vertexInputCount;
 160                 GlslBasicType   basicType;
 161         };
 162
 163         static const GlslTypeDescription                s_glslTypeDescriptions[GLSL_TYPE_COUNT];
 164
 165                                                                                         VertexInputTest                         (tcu::TestContext&                                      testContext,
 166                                                                                                                                                  const std::string&                                     name,
 167                                                                                                                                                  const std::string&                                     description,
 168                                                                                                                                                  const std::vector<AttributeInfo>&      attributeInfos,
 169                                                                                                                                                  BindingMapping                                         bindingMapping);
 170
 171         virtual                                                                 ~VertexInputTest                        (void) {}
 172         virtual void                                                    initPrograms                            (SourceCollections& programCollection) const;
 173         virtual TestInstance*                                   createInstance                          (Context& context) const;
 174         static bool                                                             isCompatibleType                        (VkFormat format, GlslType glslType);
 175
 176 private:
 177         std::string                                                             getGlslInputDeclarations        (void) const;
 178         std::string                                                             getGlslVertexCheck                      (void) const;
 179         std::string                                                             getGlslAttributeConditions      (const AttributeInfo& attributeInfo, deUint32 attributeIndex) const;
 180         static tcu::Vec4                                                getFormatThreshold                      (VkFormat format);
 181
 182         const std::vector<AttributeInfo>                m_attributeInfos;
 183         const BindingMapping                                    m_bindingMapping;
 184         bool                                                                    m_usesDoubleType;
 185 };
 186
 187 class GlslTypeCombinationsIterator : public CombinationsIterator< std::vector<VertexInputTest::GlslType> >
 188 {
 189 public:
 190                                                                                                         GlslTypeCombinationsIterator    (deUint32 numValues, deUint32 combinationSize);
 191         virtual                                                                                 ~GlslTypeCombinationsIterator   (void) {}
 192
 193 protected:
 194         virtual std::vector<VertexInputTest::GlslType>  getCombinationValue                             (const std::vector<deUint32>& combination);
 195
 196 private:
 197         std::vector<VertexInputTest::GlslType>                  m_combinationValue;
 198 };
 199
 200 class VertexInputInstance : public vkt::TestInstance
 201 {
 202 public:
 203         struct VertexInputAttributeDescription
 204         {
 205                 VertexInputTest::GlslType                       glslType;
 206                 int                                                                     vertexInputIndex;
 207                 VkVertexInputAttributeDescription       vkDescription;
 208         };
 209
 210         typedef std::vector<VertexInputAttributeDescription>    AttributeDescriptionList;
 211
 212                                                                                         VertexInputInstance                     (Context&                                                                                               context,
 213                                                                                                                                                  const AttributeDescriptionList&                                                attributeDescriptions,
 214                                                                                                                                                  const std::vector<VkVertexInputBindingDescription>&    bindingDescriptions,
 215                                                                                                                                                  const std::vector<VkDeviceSize>&                                               bindingOffsets);
 216
 217         virtual                                                                 ~VertexInputInstance            (void);
 218         virtual tcu::TestStatus                                 iterate                                         (void);
 219
 220
 221         static void                                                             writeVertexInputData            (deUint8* destPtr, const VkVertexInputBindingDescription& bindingDescription, const VkDeviceSize bindingOffset, const AttributeDescriptionList& attributes);
 222         static void                                                             writeVertexInputValue           (deUint8* destPtr, const VertexInputAttributeDescription& attributes, int indexId);
 223
 224 private:
 225         tcu::TestStatus                                                 verifyImage                                     (void);
 226
 227 private:
 228         std::vector<VkBuffer>                                   m_vertexBuffers;
 229         std::vector<Allocation*>                                m_vertexBufferAllocs;
 230
 231         const tcu::UVec2                                                m_renderSize;
 232         const VkFormat                                                  m_colorFormat;
 233
 234         Move<VkImage>                                                   m_colorImage;
 235         de::MovePtr<Allocation>                                 m_colorImageAlloc;
 236         Move<VkImage>                                                   m_depthImage;
 237         Move<VkImageView>                                               m_colorAttachmentView;
 238         Move<VkRenderPass>                                              m_renderPass;
 239         Move<VkFramebuffer>                                             m_framebuffer;
 240
 241         Move<VkShaderModule>                                    m_vertexShaderModule;
 242         Move<VkShaderModule>                                    m_fragmentShaderModule;
 243
 244         Move<VkPipelineLayout>                                  m_pipelineLayout;
 245         Move<VkPipeline>                                                m_graphicsPipeline;
 246
 247         Move<VkCommandPool>                                             m_cmdPool;
 248         Move<VkCommandBuffer>                                   m_cmdBuffer;
 249
 250         Move<VkFence>                                                   m_fence;
 251 };
 252
 253 const VertexInputTest::GlslTypeDescription VertexInputTest::s_glslTypeDescriptions[GLSL_TYPE_COUNT] =
 254 {
 255         { "int",        1, 1, GLSL_BASIC_TYPE_INT },
 256         { "ivec2",      2, 1, GLSL_BASIC_TYPE_INT },
 257         { "ivec3",      3, 1, GLSL_BASIC_TYPE_INT },
 258         { "ivec4",      4, 1, GLSL_BASIC_TYPE_INT },
 259
 260         { "uint",       1, 1, GLSL_BASIC_TYPE_UINT },
 261         { "uvec2",      2, 1, GLSL_BASIC_TYPE_UINT },
 262         { "uvec3",      3, 1, GLSL_BASIC_TYPE_UINT },
 263         { "uvec4",      4, 1, GLSL_BASIC_TYPE_UINT },
 264
 265         { "float",      1, 1, GLSL_BASIC_TYPE_FLOAT },
 266         { "vec2",       2, 1, GLSL_BASIC_TYPE_FLOAT },
 267         { "vec3",       3, 1, GLSL_BASIC_TYPE_FLOAT },
 268         { "vec4",       4, 1, GLSL_BASIC_TYPE_FLOAT },
 269         { "mat2",       2, 2, GLSL_BASIC_TYPE_FLOAT },
 270         { "mat3",       3, 3, GLSL_BASIC_TYPE_FLOAT },
 271         { "mat4",       4, 4, GLSL_BASIC_TYPE_FLOAT },
 272
 273         { "double",     1, 1, GLSL_BASIC_TYPE_DOUBLE },
 274         { "dvec2",      2, 1, GLSL_BASIC_TYPE_DOUBLE },
 275         { "dvec3",      3, 1, GLSL_BASIC_TYPE_DOUBLE },
 276         { "dvec4",      4, 1, GLSL_BASIC_TYPE_DOUBLE },
 277         { "dmat2",      2, 2, GLSL_BASIC_TYPE_DOUBLE },
 278         { "dmat3",      3, 3, GLSL_BASIC_TYPE_DOUBLE },
 279         { "dmat4",      4, 4, GLSL_BASIC_TYPE_DOUBLE }
 280 };
 281
 282
 283 VertexInputTest::VertexInputTest (tcu::TestContext&                                             testContext,
 284                                                                   const std::string&                                    name,
 285                                                                   const std::string&                                    description,
 286                                                                   const std::vector<AttributeInfo>&             attributeInfos,
 287                                                                   BindingMapping                                                bindingMapping)
 288
 289         : vkt::TestCase                 (testContext, name, description)
 290         , m_attributeInfos              (attributeInfos)
 291         , m_bindingMapping              (bindingMapping)
 292 {
 293         m_usesDoubleType = false;
 294
 295         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 296         {
 297                 if (s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType].basicType == GLSL_BASIC_TYPE_DOUBLE)
 298                 {
 299                         m_usesDoubleType = true;
 300                         break;
 301                 }
 302         }
 303 }
 304
 305 TestInstance* VertexInputTest::createInstance (Context& context) const
 306 {
 307         // Create enough binding descriptions with random offsets
 308         std::vector<VkVertexInputBindingDescription>    bindingDescriptions;
 309         std::vector<VkDeviceSize>                                               bindingOffsets;
 310
 311         for (size_t bindingNdx = 0; bindingNdx < m_attributeInfos.size() * 2; bindingNdx++)
 312         {
 313                 // Use STEP_RATE_VERTEX in even bindings and STEP_RATE_INSTANCE in odd bindings
 314                 const VkVertexInputRate                                         inputRate                       = (bindingNdx % 2 == 0) ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE;
 315
 316                 // .strideInBytes will be updated when creating the attribute descriptions
 317                 const VkVertexInputBindingDescription   bindingDescription      =
 318                 {
 319                         (deUint32)bindingNdx,   // deUint32                             binding;
 320                         0,                                              // deUint32                             stride;
 321                         inputRate                               // VkVertexInputRate    inputRate;
 322                 };
 323
 324                 bindingDescriptions.push_back(bindingDescription);
 325                 bindingOffsets.push_back(4 * bindingNdx);
 326         }
 327
 328         // Create attribute descriptions, assign them to bindings and update .strideInBytes
 329         std::vector<VertexInputInstance::VertexInputAttributeDescription>       attributeDescriptions;
 330         deUint32                                                                                                                        attributeLocation               = 0;
 331         std::vector<deUint32>                                                                                           attributeOffsets                (bindingDescriptions.size(), 0);
 332         std::vector<deUint32>                                                                                           attributeMaxSizes               (bindingDescriptions.size(), 0);
 333
 334         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 335         {
 336                 const AttributeInfo&            attributeInfo                   = m_attributeInfos[attributeNdx];
 337                 const GlslTypeDescription&      glslTypeDescription             = s_glslTypeDescriptions[attributeInfo.glslType];
 338                 const deUint32                          inputSize                               = getVertexFormatSize(attributeInfo.vkType);
 339                 deUint32                                        attributeBinding;
 340
 341                 if (m_bindingMapping == BINDING_MAPPING_ONE_TO_ONE)
 342                 {
 343                         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
 344                         {
 345                                 attributeBinding = (deUint32)attributeNdx * 2; // Odd binding number
 346                         }
 347                         else // attributeInfo.inputRate == VK_VERTEX_INPUT_STEP_RATE_INSTANCE
 348                         {
 349                                 attributeBinding = (deUint32)attributeNdx * 2 + 1; // Even binding number
 350                         }
 351                 }
 352                 else // m_bindingMapping == BINDING_MAPPING_ONE_TO_MANY
 353                 {
 354                         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
 355                         {
 356                                 attributeBinding = 0;
 357                         }
 358                         else // attributeInfo.inputRate == VK_VERTEX_INPUT_STEP_RATE_INSTANCE
 359                         {
 360                                 attributeBinding = 1;
 361                         }
 362                 }
 363
 364                 for (int descNdx = 0; descNdx < glslTypeDescription.vertexInputCount; descNdx++)
 365                 {
 366                         const deUint32  offsetToComponentAlignment      = getNextMultipleOffset(getVertexFormatComponentSize(attributeInfo.vkType),
 367                                                                                                                                                                 (deUint32)bindingOffsets[attributeBinding] + attributeOffsets[attributeBinding]);
 368
 369                         attributeOffsets[attributeBinding] += offsetToComponentAlignment;
 370
 371                         const VertexInputInstance::VertexInputAttributeDescription attributeDescription =
 372                         {
 373                                 attributeInfo.glslType,                                                 // GlslType     glslType;
 374                                 descNdx,                                                                                // int          index;
 375                                 {
 376                                         attributeLocation,                                                      // deUint32     location;
 377                                         attributeBinding,                                                       // deUint32     binding;
 378                                         attributeInfo.vkType,                                           // VkFormat     format;
 379                                         attributeOffsets[attributeBinding],                     // deUint32     offset;
 380                                 },
 381                         };
 382
 383                         bindingDescriptions[attributeBinding].stride    += offsetToComponentAlignment + inputSize;
 384                         attributeOffsets[attributeBinding]                              += inputSize;
 385                         attributeMaxSizes[attributeBinding]                              = de::max(attributeMaxSizes[attributeBinding], getVertexFormatComponentSize(attributeInfo.vkType));
 386
 387                         //double formats with more than 2 components will take 2 locations
 388                         const GlslType type = attributeInfo.glslType;
 389                         if ((type == GLSL_TYPE_DMAT2 || type == GLSL_TYPE_DMAT3 || type == GLSL_TYPE_DMAT4) &&
 390                                 (attributeInfo.vkType == VK_FORMAT_R64G64B64_SFLOAT || attributeInfo.vkType == VK_FORMAT_R64G64B64A64_SFLOAT))
 391                         {
 392                                 attributeLocation += 2;
 393                         }
 394                         else
 395                                 attributeLocation++;
 396
 397                         attributeDescriptions.push_back(attributeDescription);
 398                 }
 399         }
 400
 401         // Make sure the stride results in aligned access
 402         for (deUint32 bindingNdx = 0; bindingNdx < bindingDescriptions.size(); ++bindingNdx)
 403         {
 404                 if (attributeMaxSizes[bindingNdx] > 0)
 405                         bindingDescriptions[bindingNdx].stride += getNextMultipleOffset(attributeMaxSizes[bindingNdx], bindingDescriptions[bindingNdx].stride);
 406         }
 407
 408         return new VertexInputInstance(context, attributeDescriptions, bindingDescriptions, bindingOffsets);
 409 }
 410
 411 void VertexInputTest::initPrograms (SourceCollections& programCollection) const
 412 {
 413         std::ostringstream vertexSrc;
 414
 415         vertexSrc << "#version 440\n"
 416                           << getGlslInputDeclarations()
 417                           << "layout(location = 0) out highp vec4 vtxColor;\n"
 418                           << "out gl_PerVertex {\n"
 419                           << "  vec4 gl_Position;\n"
 420                           << "};\n";
 421
 422         // NOTE: double abs(double x) undefined in glslang ??
 423         if (m_usesDoubleType)
 424                 vertexSrc << "double abs (double x) { if (x < 0.0LF) return -x; else return x; }\n";
 425
 426         vertexSrc << "void main (void)\n"
 427                           << "{\n"
 428                           << getGlslVertexCheck()
 429                           << "}\n";
 430
 431         programCollection.glslSources.add("attribute_test_vert") << glu::VertexSource(vertexSrc.str());
 432
 433         programCollection.glslSources.add("attribute_test_frag") << glu::FragmentSource(
 434                 "#version 440\n"
 435                 "layout(location = 0) in highp vec4 vtxColor;\n"
 436                 "layout(location = 0) out highp vec4 fragColor;\n"
 437                 "void main (void)\n"
 438                 "{\n"
 439                 "       fragColor = vtxColor;\n"
 440                 "}\n");
 441 }
 442
 443 std::string VertexInputTest::getGlslInputDeclarations (void) const
 444 {
 445         std::ostringstream      glslInputs;
 446         deUint32                        location = 0;
 447
 448         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 449         {
 450                 const GlslTypeDescription& glslTypeDesc = s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType];
 451
 452                 glslInputs << "layout(location = " << location << ") in highp " << glslTypeDesc.name << " attr" << attributeNdx << ";\n";
 453                 location += glslTypeDesc.vertexInputCount;
 454         }
 455
 456         return glslInputs.str();
 457 }
 458
 459 std::string VertexInputTest::getGlslVertexCheck (void) const
 460 {
 461         std::ostringstream      glslCode;
 462         int                                     totalInputComponentCount        = 0;
 463
 464
 465         glslCode << "   int okCount = 0;\n";
 466
 467         for (size_t attributeNdx = 0; attributeNdx < m_attributeInfos.size(); attributeNdx++)
 468         {
 469                 glslCode << getGlslAttributeConditions(m_attributeInfos[attributeNdx], (deUint32)attributeNdx);
 470
 471                 const int vertexInputCount      = VertexInputTest::s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType].vertexInputCount;
 472                 totalInputComponentCount        += vertexInputCount * VertexInputTest::s_glslTypeDescriptions[m_attributeInfos[attributeNdx].glslType].vertexInputComponentCount;
 473         }
 474
 475         glslCode <<
 476                 "       if (okCount == " << totalInputComponentCount << ")\n"
 477                 "       {\n"
 478                 "               if (gl_InstanceIndex == 0)\n"
 479                 "                       vtxColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
 480                 "               else\n"
 481                 "                       vtxColor = vec4(0.0, 0.0, 1.0, 1.0);\n"
 482                 "       }\n"
 483                 "       else\n"
 484                 "       {\n"
 485                 "               vtxColor = vec4(okCount / float(" << totalInputComponentCount << "), 0.0f, 0.0f, 1.0);\n" <<
 486                 "       }\n\n"
 487                 "       if (gl_InstanceIndex == 0)\n"
 488                 "       {\n"
 489                 "               if (gl_VertexIndex == 0) gl_Position = vec4(-1.0, -1.0, 0.0, 1.0);\n"
 490                 "               else if (gl_VertexIndex == 1) gl_Position = vec4(0.0, -1.0, 0.0, 1.0);\n"
 491                 "               else if (gl_VertexIndex == 2) gl_Position = vec4(-1.0, 1.0, 0.0, 1.0);\n"
 492                 "               else if (gl_VertexIndex == 3) gl_Position = vec4(0.0, 1.0, 0.0, 1.0);\n"
 493                 "               else gl_Position = vec4(0.0);\n"
 494                 "       }\n"
 495                 "       else\n"
 496                 "       {\n"
 497                 "               if (gl_VertexIndex == 0) gl_Position = vec4(0.0, -1.0, 0.0, 1.0);\n"
 498                 "               else if (gl_VertexIndex == 1) gl_Position = vec4(1.0, -1.0, 0.0, 1.0);\n"
 499                 "               else if (gl_VertexIndex == 2) gl_Position = vec4(0.0, 1.0, 0.0, 1.0);\n"
 500                 "               else if (gl_VertexIndex == 3) gl_Position = vec4(1.0, 1.0, 0.0, 1.0);\n"
 501                 "               else gl_Position = vec4(0.0);\n"
 502                 "       }\n";
 503
 504         return glslCode.str();
 505 }
 506
 507 std::string VertexInputTest::getGlslAttributeConditions (const AttributeInfo& attributeInfo, deUint32 attributeIndex) const
 508 {
 509         std::ostringstream      glslCode;
 510         std::ostringstream      attributeVar;
 511         const std::string       indexId                         = (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX) ? "gl_VertexIndex" : "gl_InstanceIndex";
 512         const int                       componentCount          = VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].vertexInputComponentCount;
 513         const int                       vertexInputCount        = VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].vertexInputCount;
 514         const deUint32          totalComponentCount     = componentCount * vertexInputCount;
 515         const tcu::Vec4         threshold                       = getFormatThreshold(attributeInfo.vkType);
 516         deUint32                        componentIndex          = 0;
 517
 518         attributeVar << "attr" << attributeIndex;
 519
 520         glslCode << std::fixed;
 521
 522         for (int columnNdx = 0; columnNdx< vertexInputCount; columnNdx++)
 523         {
 524                 for (int rowNdx = 0; rowNdx < componentCount; rowNdx++)
 525                 {
 526                         std::string accessStr;
 527                         {
 528                                 // Build string representing the access to the attribute component
 529                                 std::ostringstream accessStream;
 530                                 accessStream << attributeVar.str();
 531
 532                                 if (vertexInputCount == 1)
 533                                 {
 534                                         if (componentCount > 1)
 535                                                 accessStream << "[" << rowNdx << "]";
 536                                 }
 537                                 else
 538                                 {
 539                                         accessStream << "[" << columnNdx << "][" << rowNdx << "]";
 540                                 }
 541
 542                                 accessStr = accessStream.str();
 543                         }
 544
 545                         if (isVertexFormatSint(attributeInfo.vkType))
 546                         {
 547                                 glslCode << "\tif (" << accessStr << " == -(" << totalComponentCount << " * " << indexId << " + " << componentIndex << "))\n";
 548                         }
 549                         else if (isVertexFormatUint(attributeInfo.vkType))
 550                         {
 551                                 glslCode << "\tif (" << accessStr << " == uint(" << totalComponentCount << " * " << indexId << " + " << componentIndex << "))\n";
 552                         }
 553                         else if (isVertexFormatSfloat(attributeInfo.vkType))
 554                         {
 555                                 if (VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].basicType == VertexInputTest::GLSL_BASIC_TYPE_DOUBLE)
 556                                 {
 557                                         glslCode << "\tif (abs(" << accessStr << " + double(0.01 * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < double(" << threshold[rowNdx] << "))\n";
 558                                 }
 559                                 else
 560                                 {
 561                                         glslCode << "\tif (abs(" << accessStr << " + (0.01 * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < " << threshold[rowNdx] << ")\n";
 562                                 }
 563                         }
 564                         else if (isVertexFormatSscaled(attributeInfo.vkType))
 565                         {
 566                                 glslCode << "\tif (abs(" << accessStr << " + (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0)) < " << threshold[rowNdx] << ")\n";
 567                         }
 568                         else if (isVertexFormatUscaled(attributeInfo.vkType))
 569                         {
 570                                 glslCode << "\t if (abs(" << accessStr << " - (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0)) < " << threshold[rowNdx] << ")\n";
 571                         }
 572                         else if (isVertexFormatSnorm(attributeInfo.vkType))
 573                         {
 574                                 const float representableDiff = getRepresentableDifferenceSnorm(attributeInfo.vkType);
 575
 576                                 glslCode << "\tif (abs(" << accessStr << " - (-1.0 + " << representableDiff << " * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < " << threshold[rowNdx] << ")\n";
 577                         }
 578                         else if (isVertexFormatUnorm(attributeInfo.vkType) || isVertexFormatSRGB(attributeInfo.vkType))
 579                         {
 580                                 const float representableDiff = getRepresentableDifferenceUnorm(attributeInfo.vkType);
 581
 582                                 glslCode << "\tif (abs(" << accessStr << " - " << "(" << representableDiff << " * (" << totalComponentCount << ".0 * float(" << indexId << ") + " << componentIndex << ".0))) < " << threshold[rowNdx] << ")\n";
 583                         }
 584                         else
 585                         {
 586                                 DE_ASSERT(false);
 587                         }
 588
 589                         glslCode << "\t\tokCount++;\n\n";
 590
 591                         componentIndex++;
 592                 }
 593         }
 594         return glslCode.str();
 595 }
 596
 597 tcu::Vec4 VertexInputTest::getFormatThreshold (VkFormat format)
 598 {
 599         using tcu::Vec4;
 600
 601         switch (format)
 602         {
 603                 case VK_FORMAT_R32_SFLOAT:
 604                 case VK_FORMAT_R32G32_SFLOAT:
 605                 case VK_FORMAT_R32G32B32_SFLOAT:
 606                 case VK_FORMAT_R32G32B32A32_SFLOAT:
 607                 case VK_FORMAT_R64_SFLOAT:
 608                 case VK_FORMAT_R64G64_SFLOAT:
 609                 case VK_FORMAT_R64G64B64_SFLOAT:
 610                 case VK_FORMAT_R64G64B64A64_SFLOAT:
 611                         return Vec4(0.00001f);
 612
 613                 default:
 614                         break;
 615         }
 616
 617         if (isVertexFormatSnorm(format))
 618         {
 619                 return Vec4(1.5f * getRepresentableDifferenceSnorm(format));
 620         }
 621         else if (isVertexFormatUnorm(format))
 622         {
 623                 return Vec4(1.5f * getRepresentableDifferenceUnorm(format));
 624         }
 625
 626         return Vec4(0.001f);
 627 }
 628
 629 GlslTypeCombinationsIterator::GlslTypeCombinationsIterator (deUint32 numValues, deUint32 combinationSize)
 630         : CombinationsIterator< std::vector<VertexInputTest::GlslType> >        (numValues, combinationSize)
 631         , m_combinationValue                                                                                            (std::vector<VertexInputTest::GlslType>(combinationSize))
 632 {
 633         DE_ASSERT(numValues <= VertexInputTest::GLSL_TYPE_COUNT);
 634 }
 635
 636 std::vector<VertexInputTest::GlslType> GlslTypeCombinationsIterator::getCombinationValue (const std::vector<deUint32>& combination)
 637 {
 638         for (size_t combinationItemNdx = 0; combinationItemNdx < combination.size(); combinationItemNdx++)
 639                 m_combinationValue[combinationItemNdx] = (VertexInputTest::GlslType)combination[combinationItemNdx];
 640
 641         return m_combinationValue;
 642 }
 643
 644 VertexInputInstance::VertexInputInstance (Context&                                                                                              context,
 645                                                                                   const AttributeDescriptionList&                                               attributeDescriptions,
 646                                                                                   const std::vector<VkVertexInputBindingDescription>&   bindingDescriptions,
 647                                                                                   const std::vector<VkDeviceSize>&                                              bindingOffsets)
 648         : vkt::TestInstance                     (context)
 649         , m_renderSize                          (16, 16)
 650         , m_colorFormat                         (VK_FORMAT_R8G8B8A8_UNORM)
 651 {
 652         DE_ASSERT(bindingDescriptions.size() == bindingOffsets.size());
 653
 654         const DeviceInterface&          vk                                              = context.getDeviceInterface();
 655         const VkDevice                          vkDevice                                = context.getDevice();
 656         const deUint32                          queueFamilyIndex                = context.getUniversalQueueFamilyIndex();
 657         SimpleAllocator                         memAlloc                                (vk, vkDevice, getPhysicalDeviceMemoryProperties(context.getInstanceInterface(), context.getPhysicalDevice()));
 658         const VkComponentMapping        componentMappingRGBA    = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
 659
 660         // Create color image
 661         {
 662                 const VkImageCreateInfo colorImageParams =
 663                 {
 664                         VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,                                                                            // VkStructureType                      sType;
 665                         DE_NULL,                                                                                                                                        // const void*                          pNext;
 666                         0u,                                                                                                                                                     // VkImageCreateFlags           flags;
 667                         VK_IMAGE_TYPE_2D,                                                                                                                       // VkImageType                          imageType;
 668                         m_colorFormat,                                                                                                                          // VkFormat                                     format;
 669                         { m_renderSize.x(), m_renderSize.y(), 1u },                                                                     // VkExtent3D                           extent;
 670                         1u,                                                                                                                                                     // deUint32                                     mipLevels;
 671                         1u,                                                                                                                                                     // deUint32                                     arrayLayers;
 672                         VK_SAMPLE_COUNT_1_BIT,                                                                                                          // VkSampleCountFlagBits        samples;
 673                         VK_IMAGE_TILING_OPTIMAL,                                                                                                        // VkImageTiling                        tiling;
 674                         VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT,          // VkImageUsageFlags            usage;
 675                         VK_SHARING_MODE_EXCLUSIVE,                                                                                                      // VkSharingMode                        sharingMode;
 676                         1u,                                                                                                                                                     // deUint32                                     queueFamilyIndexCount;
 677                         &queueFamilyIndex,                                                                                                                      // const deUint32*                      pQueueFamilyIndices;
 678                         VK_IMAGE_LAYOUT_UNDEFINED,                                                                                                      // VkImageLayout                        initialLayout;
 679                 };
 680
 681                 m_colorImage                    = createImage(vk, vkDevice, &colorImageParams);
 682
 683                 // Allocate and bind color image memory
 684                 m_colorImageAlloc               = memAlloc.allocate(getImageMemoryRequirements(vk, vkDevice, *m_colorImage), MemoryRequirement::Any);
 685                 VK_CHECK(vk.bindImageMemory(vkDevice, *m_colorImage, m_colorImageAlloc->getMemory(), m_colorImageAlloc->getOffset()));
 686         }
 687
 688         // Create color attachment view
 689         {
 690                 const VkImageViewCreateInfo colorAttachmentViewParams =
 691                 {
 692                         VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,               // VkStructureType                      sType;
 693                         DE_NULL,                                                                                // const void*                          pNext;
 694                         0u,                                                                                             // VkImageViewCreateFlags       flags;
 695                         *m_colorImage,                                                                  // VkImage                                      image;
 696                         VK_IMAGE_VIEW_TYPE_2D,                                                  // VkImageViewType                      viewType;
 697                         m_colorFormat,                                                                  // VkFormat                                     format;
 698                         componentMappingRGBA,                                                   // VkComponentMapping           components;
 699                         { VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u },  // VkImageSubresourceRange      subresourceRange;
 700                 };
 701
 702                 m_colorAttachmentView = createImageView(vk, vkDevice, &colorAttachmentViewParams);
 703         }
 704
 705         // Create render pass
 706         {
 707                 const VkAttachmentDescription colorAttachmentDescription =
 708                 {
 709                         0u,                                                                                                     // VkAttachmentDescriptionFlags         flags;
 710                         m_colorFormat,                                                                          // VkFormat                                                     format;
 711                         VK_SAMPLE_COUNT_1_BIT,                                                          // VkSampleCountFlagBits                        samples;
 712                         VK_ATTACHMENT_LOAD_OP_CLEAR,                                            // VkAttachmentLoadOp                           loadOp;
 713                         VK_ATTACHMENT_STORE_OP_STORE,                                           // VkAttachmentStoreOp                          storeOp;
 714                         VK_ATTACHMENT_LOAD_OP_DONT_CARE,                                        // VkAttachmentLoadOp                           stencilLoadOp;
 715                         VK_ATTACHMENT_STORE_OP_DONT_CARE,                                       // VkAttachmentStoreOp                          stencilStoreOp;
 716                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,                       // VkImageLayout                                        initialLayout;
 717                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL                        // VkImageLayout                                        finalLayout;
 718                 };
 719
 720                 const VkAttachmentReference colorAttachmentReference =
 721                 {
 722                         0u,                                                                                                     // deUint32                     attachment;
 723                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL                        // VkImageLayout        layout;
 724                 };
 725
 726                 const VkSubpassDescription subpassDescription =
 727                 {
 728                         0u,                                                                                                     // VkSubpassDescriptionFlags    flags;
 729                         VK_PIPELINE_BIND_POINT_GRAPHICS,                                        // VkPipelineBindPoint                  pipelineBindPoint;
 730                         0u,                                                                                                     // deUint32                                             inputAttachmentCount;
 731                         DE_NULL,                                                                                        // const VkAttachmentReference* pInputAttachments;
 732                         1u,                                                                                                     // deUint32                                             colorAttachmentCount;
 733                         &colorAttachmentReference,                                                      // const VkAttachmentReference* pColorAttachments;
 734                         DE_NULL,                                                                                        // const VkAttachmentReference* pResolveAttachments;
 735                         DE_NULL,                                                                                        // const VkAttachmentReference* pDepthStencilAttachment;
 736                         0u,                                                                                                     // deUint32                                             preserveAttachmentCount;
 737                         DE_NULL                                                                                         // const VkAttachmentReference* pPreserveAttachments;
 738                 };
 739
 740                 const VkRenderPassCreateInfo renderPassParams =
 741                 {
 742                         VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,                      // VkStructureType                                      sType;
 743                         DE_NULL,                                                                                        // const void*                                          pNext;
 744                         0u,                                                                                                     // VkRenderPassCreateFlags                      flags;
 745                         1u,                                                                                                     // deUint32                                                     attachmentCount;
 746                         &colorAttachmentDescription,                                            // const VkAttachmentDescription*       pAttachments;
 747                         1u,                                                                                                     // deUint32                                                     subpassCount;
 748                         &subpassDescription,                                                            // const VkSubpassDescription*          pSubpasses;
 749                         0u,                                                                                                     // deUint32                                                     dependencyCount;
 750                         DE_NULL                                                                                         // const VkSubpassDependency*           pDependencies;
 751                 };
 752
 753                 m_renderPass = createRenderPass(vk, vkDevice, &renderPassParams);
 754         }
 755
 756         // Create framebuffer
 757         {
 758                 const VkFramebufferCreateInfo framebufferParams =
 759                 {
 760                         VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,                      // VkStructureType                      sType;
 761                         DE_NULL,                                                                                        // const void*                          pNext;
 762                         0u,                                                                                                     // VkFramebufferCreateFlags     flags;
 763                         *m_renderPass,                                                                          // VkRenderPass                         renderPass;
 764                         1u,                                                                                                     // deUint32                                     attachmentCount;
 765                         &m_colorAttachmentView.get(),                                           // const VkImageView*           pAttachments;
 766                         (deUint32)m_renderSize.x(),                                                     // deUint32                                     width;
 767                         (deUint32)m_renderSize.y(),                                                     // deUint32                                     height;
 768                         1u                                                                                                      // deUint32                                     layers;
 769                 };
 770
 771                 m_framebuffer = createFramebuffer(vk, vkDevice, &framebufferParams);
 772         }
 773
 774         // Create pipeline layout
 775         {
 776                 const VkPipelineLayoutCreateInfo pipelineLayoutParams =
 777                 {
 778                         VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,          // VkStructureType                                      sType;
 779                         DE_NULL,                                                                                        // const void*                                          pNext;
 780                         0u,                                                                                                     // VkPipelineLayoutCreateFlags          flags;
 781                         0u,                                                                                                     // deUint32                                                     setLayoutCount;
 782                         DE_NULL,                                                                                        // const VkDescriptorSetLayout*         pSetLayouts;
 783                         0u,                                                                                                     // deUint32                                                     pushConstantRangeCount;
 784                         DE_NULL                                                                                         // const VkPushConstantRange*           pPushConstantRanges;
 785                 };
 786
 787                 m_pipelineLayout = createPipelineLayout(vk, vkDevice, &pipelineLayoutParams);
 788         }
 789
 790         m_vertexShaderModule    = createShaderModule(vk, vkDevice, m_context.getBinaryCollection().get("attribute_test_vert"), 0);
 791         m_fragmentShaderModule  = createShaderModule(vk, vkDevice, m_context.getBinaryCollection().get("attribute_test_frag"), 0);
 792
 793
 794         // Create pipeline
 795         {
 796                 const VkPipelineShaderStageCreateInfo shaderStageParams[2] =
 797                 {
 798                         {
 799                                 VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,            // VkStructureType                                              sType;
 800                                 DE_NULL,                                                                                                        // const void*                                                  pNext;
 801                                 0u,                                                                                                                     // VkPipelineShaderStageCreateFlags             flags;
 802                                 VK_SHADER_STAGE_VERTEX_BIT,                                                                     // VkShaderStageFlagBits                                stage;
 803                                 *m_vertexShaderModule,                                                                          // VkShaderModule                                               module;
 804                                 "main",                                                                                                         // const char*                                                  pName;
 805                                 DE_NULL                                                                                                         // const VkSpecializationInfo*                  pSpecializationInfo;
 806                         },
 807                         {
 808                                 VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,            // VkStructureType                                              sType;
 809                                 DE_NULL,                                                                                                        // const void*                                                  pNext;
 810                                 0u,                                                                                                                     // VkPipelineShaderStageCreateFlags             flags;
 811                                 VK_SHADER_STAGE_FRAGMENT_BIT,                                                           // VkShaderStageFlagBits                                stage;
 812                                 *m_fragmentShaderModule,                                                                        // VkShaderModule                                               module;
 813                                 "main",                                                                                                         // const char*                                                  pName;
 814                                 DE_NULL                                                                                                         // const VkSpecializationInfo*                  pSpecializationInfo;
 815                         }
 816                 };
 817
 818                 // Create vertex attribute array and check if their VK formats are supported
 819                 std::vector<VkVertexInputAttributeDescription> vkAttributeDescriptions;
 820                 for (size_t attributeNdx = 0; attributeNdx < attributeDescriptions.size(); attributeNdx++)
 821                 {
 822                         const VkVertexInputAttributeDescription& attributeDescription = attributeDescriptions[attributeNdx].vkDescription;
 823
 824                         if (!isSupportedVertexFormat(context, attributeDescription.format))
 825                                 throw tcu::NotSupportedError(std::string("Unsupported format for vertex input: ") + getFormatName(attributeDescription.format));
 826
 827                         vkAttributeDescriptions.push_back(attributeDescription);
 828                 }
 829
 830                 const VkPipelineVertexInputStateCreateInfo      vertexInputStateParams  =
 831                 {
 832                         VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,              // VkStructureType                                                      sType;
 833                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 834                         0u,                                                                                                                             // VkPipelineVertexInputStateCreateFlags        flags;
 835                         (deUint32)bindingDescriptions.size(),                                                   // deUint32                                                                     vertexBindingDescriptionCount;
 836                         bindingDescriptions.data(),                                                                             // const VkVertexInputBindingDescription*       pVertexBindingDescriptions;
 837                         (deUint32)vkAttributeDescriptions.size(),                                               // deUint32                                                                     vertexAttributeDescriptionCount;
 838                         vkAttributeDescriptions.data()                                                                  // const VkVertexInputAttributeDescription*     pVertexAttributeDescriptions;
 839                 };
 840
 841                 const VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateParams =
 842                 {
 843                         VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,    // VkStructureType                                                      sType;
 844                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 845                         0u,                                                                                                                             // VkPipelineInputAssemblyStateCreateFlags      flags;
 846                         VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP,                                                   // VkPrimitiveTopology                                          topology;
 847                         false                                                                                                                   // VkBool32                                                                     primitiveRestartEnable;
 848                 };
 849
 850                 const VkViewport viewport =
 851                 {
 852                         0.0f,                                           // float        x;
 853                         0.0f,                                           // float        y;
 854                         (float)m_renderSize.x(),        // float        width;
 855                         (float)m_renderSize.y(),        // float        height;
 856                         0.0f,                                           // float        minDepth;
 857                         1.0f                                            // float        maxDepth;
 858                 };
 859
 860                 const VkRect2D scissor = { { 0, 0 }, { m_renderSize.x(), m_renderSize.y() } };
 861
 862                 const VkPipelineViewportStateCreateInfo viewportStateParams =
 863                 {
 864                         VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,                  // VkStructureType                                              sType;
 865                         DE_NULL,                                                                                                                // const void*                                                  pNext;
 866                         0u,                                                                                                                             // VkPipelineViewportStateCreateFlags   flags;
 867                         1u,                                                                                                                             // deUint32                                                             viewportCount;
 868                         &viewport,                                                                                                              // const VkViewport*                                    pViewports;
 869                         1u,                                                                                                                             // deUint32                                                             scissorCount;
 870                         &scissor                                                                                                                // const VkRect2D*                                              pScissors;
 871                 };
 872
 873                 const VkPipelineRasterizationStateCreateInfo rasterStateParams =
 874                 {
 875                         VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,             // VkStructureType                                                      sType;
 876                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 877                         0u,                                                                                                                             // VkPipelineRasterizationStateCreateFlags      flags;
 878                         false,                                                                                                                  // VkBool32                                                                     depthClampEnable;
 879                         false,                                                                                                                  // VkBool32                                                                     rasterizerDiscardEnable;
 880                         VK_POLYGON_MODE_FILL,                                                                                   // VkPolygonMode                                                        polygonMode;
 881                         VK_CULL_MODE_NONE,                                                                                              // VkCullModeFlags                                                      cullMode;
 882                         VK_FRONT_FACE_COUNTER_CLOCKWISE,                                                                // VkFrontFace                                                          frontFace;
 883                         VK_FALSE,                                                                                                               // VkBool32                                                                     depthBiasEnable;
 884                         0.0f,                                                                                                                   // float                                                                        depthBiasConstantFactor;
 885                         0.0f,                                                                                                                   // float                                                                        depthBiasClamp;
 886                         0.0f,                                                                                                                   // float                                                                        depthBiasSlopeFactor;
 887                         1.0f,                                                                                                                   // float                                                                        lineWidth;
 888                 };
 889
 890                 const VkPipelineColorBlendAttachmentState colorBlendAttachmentState =
 891                 {
 892                         false,                                                                                                                                          // VkBool32                                     blendEnable;
 893                         VK_BLEND_FACTOR_ONE,                                                                                                            // VkBlendFactor                        srcColorBlendFactor;
 894                         VK_BLEND_FACTOR_ZERO,                                                                                                           // VkBlendFactor                        dstColorBlendFactor;
 895                         VK_BLEND_OP_ADD,                                                                                                                        // VkBlendOp                            colorBlendOp;
 896                         VK_BLEND_FACTOR_ONE,                                                                                                            // VkBlendFactor                        srcAlphaBlendFactor;
 897                         VK_BLEND_FACTOR_ZERO,                                                                                                           // VkBlendFactor                        dstAlphaBlendFactor;
 898                         VK_BLEND_OP_ADD,                                                                                                                        // VkBlendOp                            alphaBlendOp;
 899                         VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |                                           // VkColorComponentFlags        colorWriteMask;
 900                                 VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT
 901                 };
 902
 903                 const VkPipelineColorBlendStateCreateInfo colorBlendStateParams =
 904                 {
 905                         VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,       // VkStructureType                                                              sType;
 906                         DE_NULL,                                                                                                        // const void*                                                                  pNext;
 907                         0u,                                                                                                                     // VkPipelineColorBlendStateCreateFlags                 flags;
 908                         false,                                                                                                          // VkBool32                                                                             logicOpEnable;
 909                         VK_LOGIC_OP_COPY,                                                                                       // VkLogicOp                                                                    logicOp;
 910                         1u,                                                                                                                     // deUint32                                                                             attachmentCount;
 911                         &colorBlendAttachmentState,                                                                     // const VkPipelineColorBlendAttachmentState*   pAttachments;
 912                         { 0.0f, 0.0f, 0.0f, 0.0f },                                                                     // float                                                                                blendConstants[4];
 913                 };
 914
 915                 const VkPipelineMultisampleStateCreateInfo      multisampleStateParams  =
 916                 {
 917                         VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,       // VkStructureType                                                      sType;
 918                         DE_NULL,                                                                                                        // const void*                                                          pNext;
 919                         0u,                                                                                                                     // VkPipelineMultisampleStateCreateFlags        flags;
 920                         VK_SAMPLE_COUNT_1_BIT,                                                                          // VkSampleCountFlagBits                                        rasterizationSamples;
 921                         false,                                                                                                          // VkBool32                                                                     sampleShadingEnable;
 922                         0.0f,                                                                                                           // float                                                                        minSampleShading;
 923                         DE_NULL,                                                                                                        // const VkSampleMask*                                          pSampleMask;
 924                         false,                                                                                                          // VkBool32                                                                     alphaToCoverageEnable;
 925                         false                                                                                                           // VkBool32                                                                     alphaToOneEnable;
 926                 };
 927
 928                 const VkPipelineDynamicStateCreateInfo  dynamicStateParams              =
 929                 {
 930                         VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO,           // VkStructureType                                              sType;
 931                         DE_NULL,                                                                                                        // const void*                                                  pNext;
 932                         0u,                                                                                                                     // VkPipelineDynamicStateCreateFlags    flags;
 933                         0u,                                                                                                                     // deUint32                                                             dynamicStateCount;
 934                         DE_NULL                                                                                                         // const VkDynamicState*                                pDynamicStates;
 935                 };
 936
 937                 VkPipelineDepthStencilStateCreateInfo depthStencilStateParams =
 938                 {
 939                         VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,     // VkStructureType                                                      sType;
 940                         DE_NULL,                                                                                                        // const void*                                                          pNext;
 941                         0u,                                                                                                                     // VkPipelineDepthStencilStateCreateFlags       flags;
 942                         false,                                                                                                          // VkBool32                                                                     depthTestEnable;
 943                         false,                                                                                                          // VkBool32                                                                     depthWriteEnable;
 944                         VK_COMPARE_OP_LESS,                                                                                     // VkCompareOp                                                          depthCompareOp;
 945                         false,                                                                                                          // VkBool32                                                                     depthBoundsTestEnable;
 946                         false,                                                                                                          // VkBool32                                                                     stencilTestEnable;
 947                         // VkStencilOpState     front;
 948                         {
 949                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  failOp;
 950                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  passOp;
 951                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  depthFailOp;
 952                                 VK_COMPARE_OP_NEVER,    // VkCompareOp  compareOp;
 953                                 0u,                                             // deUint32             compareMask;
 954                                 0u,                                             // deUint32             writeMask;
 955                                 0u,                                             // deUint32             reference;
 956                         },
 957                         // VkStencilOpState     back;
 958                         {
 959                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  failOp;
 960                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  passOp;
 961                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  depthFailOp;
 962                                 VK_COMPARE_OP_NEVER,    // VkCompareOp  compareOp;
 963                                 0u,                                             // deUint32             compareMask;
 964                                 0u,                                             // deUint32             writeMask;
 965                                 0u,                                             // deUint32             reference;
 966                         },
 967                         -1.0f,                                                                                                          // float                        minDepthBounds;
 968                         +1.0f,                                                                                                          // float                        maxDepthBounds;
 969                 };
 970
 971                 const VkGraphicsPipelineCreateInfo graphicsPipelineParams =
 972                 {
 973                         VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,        // VkStructureType                                                                      sType;
 974                         DE_NULL,                                                                                        // const void*                                                                          pNext;
 975                         0u,                                                                                                     // VkPipelineCreateFlags                                                        flags;
 976                         2u,                                                                                                     // deUint32                                                                                     stageCount;
 977                         shaderStageParams,                                                                      // const VkPipelineShaderStageCreateInfo*                       pStages;
 978                         &vertexInputStateParams,                                                        // const VkPipelineVertexInputStateCreateInfo*          pVertexInputState;
 979                         &inputAssemblyStateParams,                                                      // const VkPipelineInputAssemblyStateCreateInfo*        pInputAssemblyState;
 980                         DE_NULL,                                                                                        // const VkPipelineTessellationStateCreateInfo*         pTessellationState;
 981                         &viewportStateParams,                                                           // const VkPipelineViewportStateCreateInfo*                     pViewportState;
 982                         &rasterStateParams,                                                                     // const VkPipelineRasterizationStateCreateInfo*        pRasterizationState;
 983                         &multisampleStateParams,                                                        // const VkPipelineMultisampleStateCreateInfo*          pMultisampleState;
 984                         &depthStencilStateParams,                                                       // const VkPipelineDepthStencilStateCreateInfo*         pDepthStencilState;
 985                         &colorBlendStateParams,                                                         // const VkPipelineColorBlendStateCreateInfo*           pColorBlendState;
 986                         &dynamicStateParams,                                                            // const VkPipelineDynamicStateCreateInfo*                      pDynamicState;
 987                         *m_pipelineLayout,                                                                      // VkPipelineLayout                                                                     layout;
 988                         *m_renderPass,                                                                          // VkRenderPass                                                                         renderPass;
 989                         0u,                                                                                                     // deUint32                                                                                     subpass;
 990                         0u,                                                                                                     // VkPipeline                                                                           basePipelineHandle;
 991                         0u                                                                                                      // deInt32                                                                                      basePipelineIndex;
 992                 };
 993
 994                 m_graphicsPipeline      = createGraphicsPipeline(vk, vkDevice, DE_NULL, &graphicsPipelineParams);
 995         }
 996
 997         // Create vertex buffer
 998         {
 999                 const VkBufferCreateInfo vertexBufferParams =
1000                 {
1001                         VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,           // VkStructureType              sType;
1002                         DE_NULL,                                                                        // const void*                  pNext;
1003                         0u,                                                                                     // VkBufferCreateFlags  flags;
1004                         4096u,                                                                          // VkDeviceSize                 size;
1005                         VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,                      // VkBufferUsageFlags   usage;
1006                         VK_SHARING_MODE_EXCLUSIVE,                                      // VkSharingMode                sharingMode;
1007                         1u,                                                                                     // deUint32                             queueFamilyIndexCount;
1008                         &queueFamilyIndex                                                       // const deUint32*              pQueueFamilyIndices;
1009                 };
1010
1011                 // Upload data for each vertex input binding
1012                 for (deUint32 bindingNdx = 0; bindingNdx < bindingDescriptions.size(); bindingNdx++)
1013                 {
1014                         Move<VkBuffer>                  vertexBuffer            = createBuffer(vk, vkDevice, &vertexBufferParams);
1015                         de::MovePtr<Allocation> vertexBufferAlloc       = memAlloc.allocate(getBufferMemoryRequirements(vk, vkDevice, *vertexBuffer), MemoryRequirement::HostVisible);
1016
1017                         VK_CHECK(vk.bindBufferMemory(vkDevice, *vertexBuffer, vertexBufferAlloc->getMemory(), vertexBufferAlloc->getOffset()));
1018
1019                         writeVertexInputData((deUint8*)vertexBufferAlloc->getHostPtr(), bindingDescriptions[bindingNdx], bindingOffsets[bindingNdx], attributeDescriptions);
1020                         flushMappedMemoryRange(vk, vkDevice, vertexBufferAlloc->getMemory(), vertexBufferAlloc->getOffset(), vertexBufferParams.size);
1021
1022                         m_vertexBuffers.push_back(vertexBuffer.disown());
1023                         m_vertexBufferAllocs.push_back(vertexBufferAlloc.release());
1024                 }
1025         }
1026
1027         // Create command pool
1028         {
1029                 const VkCommandPoolCreateInfo cmdPoolParams =
1030                 {
1031                         VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,     // VkStructureType                              sType;
1032                         DE_NULL,                                                                        // const void*                                  pNext;
1033                         VK_COMMAND_POOL_CREATE_TRANSIENT_BIT,           // VkCommandPoolCreateFlags             flags;
1034                         queueFamilyIndex,                                                       // deUint32                                             queueFamilyIndex;
1035                 };
1036
1037                 m_cmdPool = createCommandPool(vk, vkDevice, &cmdPoolParams);
1038         }
1039
1040         // Create command buffer
1041         {
1042                 const VkCommandBufferAllocateInfo cmdBufferAllocateInfo =
1043                 {
1044                         VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, // VkStructureType                      sType;
1045                         DE_NULL,                                                                                // const void*                          pNext;
1046                         *m_cmdPool,                                                                             // VkCommandPool                        commandPool;
1047                         VK_COMMAND_BUFFER_LEVEL_PRIMARY,                                // VkCommandBufferLevel         level;
1048                         1u                                                                                              // deUint32                                     bufferCount;
1049                 };
1050
1051                 const VkCommandBufferBeginInfo cmdBufferBeginInfo =
1052                 {
1053                         VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,    // VkStructureType                                      sType;
1054                         DE_NULL,                                                                                // const void*                                          pNext;
1055                         0u,                                                                                             // VkCommandBufferUsageFlags            flags;
1056                         (const VkCommandBufferInheritanceInfo*)DE_NULL,
1057                 };
1058
1059                 const VkClearValue attachmentClearValue = defaultClearValue(m_colorFormat);
1060
1061                 const VkRenderPassBeginInfo renderPassBeginInfo =
1062                 {
1063                         VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,                               // VkStructureType              sType;
1064                         DE_NULL,                                                                                                // const void*                  pNext;
1065                         *m_renderPass,                                                                                  // VkRenderPass                 renderPass;
1066                         *m_framebuffer,                                                                                 // VkFramebuffer                framebuffer;
1067                         { { 0, 0 }, { m_renderSize.x(), m_renderSize.y() } },   // VkRect2D                             renderArea;
1068                         1u,                                                                                                             // deUint32                             clearValueCount;
1069                         &attachmentClearValue                                                                   // const VkClearValue*  pClearValues;
1070                 };
1071
1072                 m_cmdBuffer = allocateCommandBuffer(vk, vkDevice, &cmdBufferAllocateInfo);
1073
1074                 VK_CHECK(vk.beginCommandBuffer(*m_cmdBuffer, &cmdBufferBeginInfo));
1075                 vk.cmdBeginRenderPass(*m_cmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
1076
1077                 vk.cmdBindPipeline(*m_cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *m_graphicsPipeline);
1078
1079                 std::vector<VkBuffer> vertexBuffers;
1080                 for (size_t bufferNdx = 0; bufferNdx < m_vertexBuffers.size(); bufferNdx++)
1081                         vertexBuffers.push_back(m_vertexBuffers[bufferNdx]);
1082
1083                 if (vertexBuffers.size() <= 1)
1084                 {
1085                         // One vertex buffer
1086                         vk.cmdBindVertexBuffers(*m_cmdBuffer, 0, (deUint32)vertexBuffers.size(), vertexBuffers.data(), bindingOffsets.data());
1087                 }
1088                 else
1089                 {
1090                         // Smoke-test vkCmdBindVertexBuffers(..., startBinding, ... )
1091
1092                         const deUint32 firstHalfLength = (deUint32)vertexBuffers.size() / 2;
1093                         const deUint32 secondHalfLength = firstHalfLength + (deUint32)(vertexBuffers.size() % 2);
1094
1095                         // Bind first half of vertex buffers
1096                         vk.cmdBindVertexBuffers(*m_cmdBuffer, 0, firstHalfLength, vertexBuffers.data(), bindingOffsets.data());
1097
1098                         // Bind second half of vertex buffers
1099                         vk.cmdBindVertexBuffers(*m_cmdBuffer, firstHalfLength, secondHalfLength,
1100                                                                         vertexBuffers.data() + firstHalfLength,
1101                                                                         bindingOffsets.data() + firstHalfLength);
1102                 }
1103
1104                 vk.cmdDraw(*m_cmdBuffer, 4, 2, 0, 0);
1105
1106                 vk.cmdEndRenderPass(*m_cmdBuffer);
1107                 VK_CHECK(vk.endCommandBuffer(*m_cmdBuffer));
1108         }
1109
1110         // Create fence
1111         {
1112                 const VkFenceCreateInfo fenceParams =
1113                 {
1114                         VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,    // VkStructureType              sType;
1115                         DE_NULL,                                                                // const void*                  pNext;
1116                         0u                                                                              // VkFenceCreateFlags   flags;
1117                 };
1118
1119                 m_fence = createFence(vk, vkDevice, &fenceParams);
1120         }
1121 }
1122
1123 VertexInputInstance::~VertexInputInstance (void)
1124 {
1125         const DeviceInterface&          vk                      = m_context.getDeviceInterface();
1126         const VkDevice                          vkDevice        = m_context.getDevice();
1127
1128         for (size_t bufferNdx = 0; bufferNdx < m_vertexBuffers.size(); bufferNdx++)
1129                 vk.destroyBuffer(vkDevice, m_vertexBuffers[bufferNdx], DE_NULL);
1130
1131         for (size_t allocNdx = 0; allocNdx < m_vertexBufferAllocs.size(); allocNdx++)
1132                 delete m_vertexBufferAllocs[allocNdx];
1133 }
1134
1135 void VertexInputInstance::writeVertexInputData(deUint8* destPtr, const VkVertexInputBindingDescription& bindingDescription, const VkDeviceSize bindingOffset, const AttributeDescriptionList& attributes)
1136 {
1137         const deUint32 vertexCount = (bindingDescription.inputRate == VK_VERTEX_INPUT_RATE_VERTEX) ? (4 * 2) : 2;
1138
1139         deUint8* destOffsetPtr = ((deUint8 *)destPtr) + bindingOffset;
1140         for (deUint32 vertexNdx = 0; vertexNdx < vertexCount; vertexNdx++)
1141         {
1142                 for (size_t attributeNdx = 0; attributeNdx < attributes.size(); attributeNdx++)
1143                 {
1144                         const VertexInputAttributeDescription& attribDesc = attributes[attributeNdx];
1145
1146                         // Only write vertex input data to bindings referenced by attribute descriptions
1147                         if (attribDesc.vkDescription.binding == bindingDescription.binding)
1148                         {
1149                                 writeVertexInputValue(destOffsetPtr + attribDesc.vkDescription.offset, attribDesc, vertexNdx);
1150                         }
1151                 }
1152                 destOffsetPtr += bindingDescription.stride;
1153         }
1154 }
1155
1156 void writeVertexInputValueSint (deUint8* destPtr, VkFormat format, int componentNdx, deInt32 value)
1157 {
1158         const deUint32  componentSize   = getVertexFormatComponentSize(format);
1159         deUint8*                destFormatPtr   = ((deUint8*)destPtr) + componentSize * componentNdx;
1160
1161         switch (componentSize)
1162         {
1163                 case 1:
1164                         *((deInt8*)destFormatPtr) = (deInt8)value;
1165                         break;
1166
1167                 case 2:
1168                         *((deInt16*)destFormatPtr) = (deInt16)value;
1169                         break;
1170
1171                 case 4:
1172                         *((deInt32*)destFormatPtr) = (deInt32)value;
1173                         break;
1174
1175                 default:
1176                         DE_ASSERT(false);
1177         }
1178 }
1179
1180 void writeVertexInputValueUint (deUint8* destPtr, VkFormat format, int componentNdx, deUint32 value)
1181 {
1182         const deUint32  componentSize   = getVertexFormatComponentSize(format);
1183         deUint8*                destFormatPtr   = ((deUint8*)destPtr) + componentSize * componentNdx;
1184
1185         switch (componentSize)
1186         {
1187                 case 1:
1188                         *((deUint8 *)destFormatPtr) = (deUint8)value;
1189                         break;
1190
1191                 case 2:
1192                         *((deUint16 *)destFormatPtr) = (deUint16)value;
1193                         break;
1194
1195                 case 4:
1196                         *((deUint32 *)destFormatPtr) = (deUint32)value;
1197                         break;
1198
1199                 default:
1200                         DE_ASSERT(false);
1201         }
1202 }
1203
1204 void writeVertexInputValueSfloat (deUint8* destPtr, VkFormat format, int componentNdx, float value)
1205 {
1206         const deUint32  componentSize   = getVertexFormatComponentSize(format);
1207         deUint8*                destFormatPtr   = ((deUint8*)destPtr) + componentSize * componentNdx;
1208
1209         switch (componentSize)
1210         {
1211                 case 2:
1212                 {
1213                         deFloat16 f16 = deFloat32To16(value);
1214                         deMemcpy(destFormatPtr, &f16, sizeof(f16));
1215                         break;
1216                 }
1217
1218                 case 4:
1219                         deMemcpy(destFormatPtr, &value, sizeof(value));
1220                         break;
1221
1222                 default:
1223                         DE_ASSERT(false);
1224         }
1225 }
1226
1227 void VertexInputInstance::writeVertexInputValue (deUint8* destPtr, const VertexInputAttributeDescription& attribute, int indexId)
1228 {
1229         const int               vertexInputCount        = VertexInputTest::s_glslTypeDescriptions[attribute.glslType].vertexInputCount;
1230         const int               componentCount          = VertexInputTest::s_glslTypeDescriptions[attribute.glslType].vertexInputComponentCount;
1231         const deUint32  totalComponentCount     = componentCount * vertexInputCount;
1232         const deUint32  vertexInputIndex        = indexId * totalComponentCount + attribute.vertexInputIndex * componentCount;
1233         const bool              hasBGROrder                     = isVertexFormatComponentOrderBGR(attribute.vkDescription.format);
1234         int                             swizzledNdx;
1235
1236         for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
1237         {
1238                 if (hasBGROrder)
1239                 {
1240                         if (componentNdx == 0)
1241                                 swizzledNdx = 2;
1242                         else if (componentNdx == 2)
1243                                 swizzledNdx = 0;
1244                         else
1245                                 swizzledNdx = componentNdx;
1246                 }
1247                 else
1248                         swizzledNdx = componentNdx;
1249
1250                 switch (attribute.glslType)
1251                 {
1252                         case VertexInputTest::GLSL_TYPE_INT:
1253                         case VertexInputTest::GLSL_TYPE_IVEC2:
1254                         case VertexInputTest::GLSL_TYPE_IVEC3:
1255                         case VertexInputTest::GLSL_TYPE_IVEC4:
1256                                 writeVertexInputValueSint(destPtr, attribute.vkDescription.format, componentNdx, -(deInt32)(vertexInputIndex + swizzledNdx));
1257                                 break;
1258
1259                         case VertexInputTest::GLSL_TYPE_UINT:
1260                         case VertexInputTest::GLSL_TYPE_UVEC2:
1261                         case VertexInputTest::GLSL_TYPE_UVEC3:
1262                         case VertexInputTest::GLSL_TYPE_UVEC4:
1263                                 writeVertexInputValueUint(destPtr, attribute.vkDescription.format, componentNdx, vertexInputIndex + swizzledNdx);
1264                                 break;
1265
1266                         case VertexInputTest::GLSL_TYPE_FLOAT:
1267                         case VertexInputTest::GLSL_TYPE_VEC2:
1268                         case VertexInputTest::GLSL_TYPE_VEC3:
1269                         case VertexInputTest::GLSL_TYPE_VEC4:
1270                         case VertexInputTest::GLSL_TYPE_MAT2:
1271                         case VertexInputTest::GLSL_TYPE_MAT3:
1272                         case VertexInputTest::GLSL_TYPE_MAT4:
1273                                 if (isVertexFormatSfloat(attribute.vkDescription.format))
1274                                 {
1275                                         writeVertexInputValueSfloat(destPtr, attribute.vkDescription.format, componentNdx, -(0.01f * (float)(vertexInputIndex + swizzledNdx)));
1276                                 }
1277                                 else if (isVertexFormatSscaled(attribute.vkDescription.format))
1278                                 {
1279                                         writeVertexInputValueSint(destPtr, attribute.vkDescription.format, componentNdx, -(deInt32)(vertexInputIndex + swizzledNdx));
1280                                 }
1281                                 else if (isVertexFormatUscaled(attribute.vkDescription.format) || isVertexFormatUnorm(attribute.vkDescription.format) || isVertexFormatSRGB(attribute.vkDescription.format))
1282                                 {
1283                                         writeVertexInputValueUint(destPtr, attribute.vkDescription.format, componentNdx, vertexInputIndex + swizzledNdx);
1284                                 }
1285                                 else if (isVertexFormatSnorm(attribute.vkDescription.format))
1286                                 {
1287                                         const deInt32 minIntValue = -((1 << (getVertexFormatComponentSize(attribute.vkDescription.format) * 8 - 1))) + 1;
1288                                         writeVertexInputValueSint(destPtr, attribute.vkDescription.format, componentNdx, minIntValue + (vertexInputIndex + swizzledNdx));
1289                                 }
1290                                 else
1291                                         DE_ASSERT(false);
1292                                 break;
1293
1294                         case VertexInputTest::GLSL_TYPE_DOUBLE:
1295                         case VertexInputTest::GLSL_TYPE_DVEC2:
1296                         case VertexInputTest::GLSL_TYPE_DVEC3:
1297                         case VertexInputTest::GLSL_TYPE_DVEC4:
1298                         case VertexInputTest::GLSL_TYPE_DMAT2:
1299                         case VertexInputTest::GLSL_TYPE_DMAT3:
1300                         case VertexInputTest::GLSL_TYPE_DMAT4:
1301                                 *(reinterpret_cast<double *>(destPtr) + componentNdx) = -0.01 * (vertexInputIndex + swizzledNdx);
1302
1303                                 break;
1304
1305                         default:
1306                                 DE_ASSERT(false);
1307                 }
1308         }
1309 }
1310
1311 tcu::TestStatus VertexInputInstance::iterate (void)
1312 {
1313         const DeviceInterface&          vk                      = m_context.getDeviceInterface();
1314         const VkDevice                          vkDevice        = m_context.getDevice();
1315         const VkQueue                           queue           = m_context.getUniversalQueue();
1316         const VkSubmitInfo                      submitInfo      =
1317         {
1318                 VK_STRUCTURE_TYPE_SUBMIT_INFO,  // VkStructureType                      sType;
1319                 DE_NULL,                                                // const void*                          pNext;
1320                 0u,                                                             // deUint32                                     waitSemaphoreCount;
1321                 DE_NULL,                                                // const VkSemaphore*           pWaitSemaphores;
1322                 (const VkPipelineStageFlags*)DE_NULL,
1323                 1u,                                                             // deUint32                                     commandBufferCount;
1324                 &m_cmdBuffer.get(),                             // const VkCommandBuffer*       pCommandBuffers;
1325                 0u,                                                             // deUint32                                     signalSemaphoreCount;
1326                 DE_NULL                                                 // const VkSemaphore*           pSignalSemaphores;
1327         };
1328
1329         VK_CHECK(vk.resetFences(vkDevice, 1, &m_fence.get()));
1330         VK_CHECK(vk.queueSubmit(queue, 1, &submitInfo, *m_fence));
1331         VK_CHECK(vk.waitForFences(vkDevice, 1, &m_fence.get(), true, ~(0ull) /* infinity*/));
1332
1333         return verifyImage();
1334 }
1335
1336 bool VertexInputTest::isCompatibleType (VkFormat format, GlslType glslType)
1337 {
1338         const GlslTypeDescription glslTypeDesc = s_glslTypeDescriptions[glslType];
1339
1340         if ((deUint32)s_glslTypeDescriptions[glslType].vertexInputComponentCount == getVertexFormatComponentCount(format))
1341         {
1342                 switch (glslTypeDesc.basicType)
1343                 {
1344                         case GLSL_BASIC_TYPE_INT:
1345                                 return isVertexFormatSint(format);
1346
1347                         case GLSL_BASIC_TYPE_UINT:
1348                                 return isVertexFormatUint(format);
1349
1350                         case GLSL_BASIC_TYPE_FLOAT:
1351                                 return getVertexFormatComponentSize(format) <= 4 && (isVertexFormatSfloat(format) || isVertexFormatSnorm(format) || isVertexFormatUnorm(format) || isVertexFormatSscaled(format) || isVertexFormatUscaled(format) || isVertexFormatSRGB(format));
1352
1353                         case GLSL_BASIC_TYPE_DOUBLE:
1354                                 return isVertexFormatSfloat(format) && getVertexFormatComponentSize(format) == 8;
1355
1356                         default:
1357                                 DE_ASSERT(false);
1358                                 return false;
1359                 }
1360         }
1361         else
1362                 return false;
1363 }
1364
1365 tcu::TestStatus VertexInputInstance::verifyImage (void)
1366 {
1367         bool                                                    compareOk                       = false;
1368         const tcu::TextureFormat                tcuColorFormat          = mapVkFormat(m_colorFormat);
1369         tcu::TextureLevel                               reference                       (tcuColorFormat, m_renderSize.x(), m_renderSize.y());
1370         const tcu::PixelBufferAccess    refRedSubregion         (tcu::getSubregion(reference.getAccess(),
1371                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.0f),
1372                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 0.0f),
1373                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.5f),
1374                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 1.0f)));
1375         const tcu::PixelBufferAccess    refBlueSubregion        (tcu::getSubregion(reference.getAccess(),
1376                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.5f),
1377                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 0.0f),
1378                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.x() * 0.5f),
1379                                                                                                                                                    deRoundFloatToInt32((float)m_renderSize.y() * 1.0f)));
1380
1381         // Create reference image
1382         tcu::clear(reference.getAccess(), defaultClearColor(tcuColorFormat));
1383         tcu::clear(refRedSubregion, tcu::Vec4(1.0f, 0.0f, 0.0f, 1.0f));
1384         tcu::clear(refBlueSubregion, tcu::Vec4(0.0f, 0.0f, 1.0f, 1.0f));
1385
1386         // Compare result with reference image
1387         {
1388                 const DeviceInterface&                  vk                                      = m_context.getDeviceInterface();
1389                 const VkDevice                                  vkDevice                        = m_context.getDevice();
1390                 const VkQueue                                   queue                           = m_context.getUniversalQueue();
1391                 const deUint32                                  queueFamilyIndex        = m_context.getUniversalQueueFamilyIndex();
1392                 SimpleAllocator                                 allocator                       (vk, vkDevice, getPhysicalDeviceMemoryProperties(m_context.getInstanceInterface(), m_context.getPhysicalDevice()));
1393                 de::MovePtr<tcu::TextureLevel>  result                          = readColorAttachment(vk, vkDevice, queue, queueFamilyIndex, allocator, *m_colorImage, m_colorFormat, m_renderSize);
1394
1395                 compareOk = tcu::intThresholdPositionDeviationCompare(m_context.getTestContext().getLog(),
1396                                                                                                                           "IntImageCompare",
1397                                                                                                                           "Image comparison",
1398                                                                                                                           reference.getAccess(),
1399                                                                                                                           result->getAccess(),
1400                                                                                                                           tcu::UVec4(2, 2, 2, 2),
1401                                                                                                                           tcu::IVec3(1, 1, 0),
1402                                                                                                                           true,
1403                                                                                                                           tcu::COMPARE_LOG_RESULT);
1404         }
1405
1406         if (compareOk)
1407                 return tcu::TestStatus::pass("Result image matches reference");
1408         else
1409                 return tcu::TestStatus::fail("Image mismatch");
1410 }
1411
1412 std::string getAttributeInfoCaseName (const VertexInputTest::AttributeInfo& attributeInfo)
1413 {
1414         std::ostringstream      caseName;
1415         const std::string       formatName      = getFormatName(attributeInfo.vkType);
1416
1417         caseName << VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].name << "_as_" << de::toLower(formatName.substr(10)) << "_rate_";
1418
1419         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
1420                 caseName <<  "vertex";
1421         else
1422                 caseName <<  "instance";
1423
1424         return caseName.str();
1425 }
1426
1427 std::string getAttributeInfosCaseName (const std::vector<VertexInputTest::AttributeInfo>& attributeInfos)
1428 {
1429         std::ostringstream caseName;
1430
1431         for (size_t attributeNdx = 0; attributeNdx < attributeInfos.size(); attributeNdx++)
1432         {
1433                 caseName << getAttributeInfoCaseName(attributeInfos[attributeNdx]);
1434
1435                 if (attributeNdx < attributeInfos.size() - 1)
1436                         caseName << "-";
1437         }
1438
1439         return caseName.str();
1440 }
1441
1442 std::string getAttributeInfoDescription (const VertexInputTest::AttributeInfo& attributeInfo)
1443 {
1444         std::ostringstream caseDesc;
1445
1446         caseDesc << std::string(VertexInputTest::s_glslTypeDescriptions[attributeInfo.glslType].name) << " from type " << getFormatName(attributeInfo.vkType) <<  " with ";
1447
1448         if (attributeInfo.inputRate == VK_VERTEX_INPUT_RATE_VERTEX)
1449                 caseDesc <<  "vertex input rate ";
1450         else
1451                 caseDesc <<  "instance input rate ";
1452
1453         return caseDesc.str();
1454 }
1455
1456 std::string getAttributeInfosDescription (const std::vector<VertexInputTest::AttributeInfo>& attributeInfos)
1457 {
1458         std::ostringstream caseDesc;
1459
1460         caseDesc << "Uses vertex attributes:\n";
1461
1462         for (size_t attributeNdx = 0; attributeNdx < attributeInfos.size(); attributeNdx++)
1463                 caseDesc << "\t- " << getAttributeInfoDescription (attributeInfos[attributeNdx]) << "\n";
1464
1465         return caseDesc.str();
1466 }
1467
1468 struct CompatibleFormats
1469 {
1470         VertexInputTest::GlslType       glslType;
1471         std::vector<VkFormat>           compatibleVkFormats;
1472 };
1473
1474 de::MovePtr<tcu::TestCaseGroup> createSingleAttributeTests (tcu::TestContext& testCtx)
1475 {
1476         const VkFormat vertexFormats[] =
1477         {
1478                 // Required, unpacked
1479                 VK_FORMAT_R8_UNORM,
1480                 VK_FORMAT_R8_SNORM,
1481                 VK_FORMAT_R8_UINT,
1482                 VK_FORMAT_R8_SINT,
1483                 VK_FORMAT_R8G8_UNORM,
1484                 VK_FORMAT_R8G8_SNORM,
1485                 VK_FORMAT_R8G8_UINT,
1486                 VK_FORMAT_R8G8_SINT,
1487                 VK_FORMAT_R8G8B8A8_UNORM,
1488                 VK_FORMAT_R8G8B8A8_SNORM,
1489                 VK_FORMAT_R8G8B8A8_UINT,
1490                 VK_FORMAT_R8G8B8A8_SINT,
1491                 VK_FORMAT_B8G8R8A8_UNORM,
1492                 VK_FORMAT_R16_UNORM,
1493                 VK_FORMAT_R16_SNORM,
1494                 VK_FORMAT_R16_UINT,
1495                 VK_FORMAT_R16_SINT,
1496                 VK_FORMAT_R16_SFLOAT,
1497                 VK_FORMAT_R16G16_UNORM,
1498                 VK_FORMAT_R16G16_SNORM,
1499                 VK_FORMAT_R16G16_UINT,
1500                 VK_FORMAT_R16G16_SINT,
1501                 VK_FORMAT_R16G16_SFLOAT,
1502                 VK_FORMAT_R16G16B16A16_UNORM,
1503                 VK_FORMAT_R16G16B16A16_SNORM,
1504                 VK_FORMAT_R16G16B16A16_UINT,
1505                 VK_FORMAT_R16G16B16A16_SINT,
1506                 VK_FORMAT_R16G16B16A16_SFLOAT,
1507                 VK_FORMAT_R32_UINT,
1508                 VK_FORMAT_R32_SINT,
1509                 VK_FORMAT_R32_SFLOAT,
1510                 VK_FORMAT_R32G32_UINT,
1511                 VK_FORMAT_R32G32_SINT,
1512                 VK_FORMAT_R32G32_SFLOAT,
1513                 VK_FORMAT_R32G32B32_UINT,
1514                 VK_FORMAT_R32G32B32_SINT,
1515                 VK_FORMAT_R32G32B32_SFLOAT,
1516                 VK_FORMAT_R32G32B32A32_UINT,
1517                 VK_FORMAT_R32G32B32A32_SINT,
1518                 VK_FORMAT_R32G32B32A32_SFLOAT,
1519
1520                 // Scaled formats
1521                 VK_FORMAT_R8G8_USCALED,
1522                 VK_FORMAT_R8G8_SSCALED,
1523                 VK_FORMAT_R16_USCALED,
1524                 VK_FORMAT_R16_SSCALED,
1525                 VK_FORMAT_R8G8B8_USCALED,
1526                 VK_FORMAT_R8G8B8_SSCALED,
1527                 VK_FORMAT_B8G8R8_USCALED,
1528                 VK_FORMAT_B8G8R8_SSCALED,
1529                 VK_FORMAT_R8G8B8A8_USCALED,
1530                 VK_FORMAT_R8G8B8A8_SSCALED,
1531                 VK_FORMAT_B8G8R8A8_USCALED,
1532                 VK_FORMAT_B8G8R8A8_SSCALED,
1533                 VK_FORMAT_R16G16_USCALED,
1534                 VK_FORMAT_R16G16_SSCALED,
1535                 VK_FORMAT_R16G16B16_USCALED,
1536                 VK_FORMAT_R16G16B16_SSCALED,
1537                 VK_FORMAT_R16G16B16A16_USCALED,
1538                 VK_FORMAT_R16G16B16A16_SSCALED,
1539
1540                 // SRGB formats
1541                 VK_FORMAT_R8_SRGB,
1542                 VK_FORMAT_R8G8_SRGB,
1543                 VK_FORMAT_R8G8B8_SRGB,
1544                 VK_FORMAT_B8G8R8_SRGB,
1545                 VK_FORMAT_R8G8B8A8_SRGB,
1546                 VK_FORMAT_B8G8R8A8_SRGB,
1547
1548                 // Double formats
1549                 VK_FORMAT_R64_SFLOAT,
1550                 VK_FORMAT_R64G64_SFLOAT,
1551                 VK_FORMAT_R64G64B64_SFLOAT,
1552                 VK_FORMAT_R64G64B64A64_SFLOAT,
1553         };
1554
1555         de::MovePtr<tcu::TestCaseGroup> singleAttributeTests (new tcu::TestCaseGroup(testCtx, "single_attribute", "Uses one attribute"));
1556
1557         for (int formatNdx = 0; formatNdx < DE_LENGTH_OF_ARRAY(vertexFormats); formatNdx++)
1558         {
1559                 for (int glslTypeNdx = 0; glslTypeNdx < VertexInputTest::GLSL_TYPE_COUNT; glslTypeNdx++)
1560                 {
1561                         if (VertexInputTest::isCompatibleType(vertexFormats[formatNdx], (VertexInputTest::GlslType)glslTypeNdx))
1562                         {
1563                                 // Create test case for RATE_VERTEX
1564                                 VertexInputTest::AttributeInfo attributeInfo;
1565                                 attributeInfo.vkType    = vertexFormats[formatNdx];
1566                                 attributeInfo.glslType  = (VertexInputTest::GlslType)glslTypeNdx;
1567                                 attributeInfo.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
1568
1569                                 singleAttributeTests->addChild(new VertexInputTest(testCtx,
1570                                                                                                                                    getAttributeInfoCaseName(attributeInfo),
1571                                                                                                                                    getAttributeInfoDescription(attributeInfo),
1572                                                                                                                                    std::vector<VertexInputTest::AttributeInfo>(1, attributeInfo),
1573                                                                                                                                    VertexInputTest::BINDING_MAPPING_ONE_TO_ONE));
1574
1575                                 // Create test case for RATE_INSTANCE
1576                                 attributeInfo.inputRate = VK_VERTEX_INPUT_RATE_INSTANCE;
1577
1578                                 singleAttributeTests->addChild(new VertexInputTest(testCtx,
1579                                                                                                                                    getAttributeInfoCaseName(attributeInfo),
1580                                                                                                                                    getAttributeInfoDescription(attributeInfo),
1581                                                                                                                                    std::vector<VertexInputTest::AttributeInfo>(1, attributeInfo),
1582                                                                                                                                    VertexInputTest::BINDING_MAPPING_ONE_TO_ONE));
1583                         }
1584                 }
1585         }
1586
1587         return singleAttributeTests;
1588 }
1589
1590 de::MovePtr<tcu::TestCaseGroup> createMultipleAttributeTests (tcu::TestContext& testCtx)
1591 {
1592         // Required vertex formats, unpacked
1593         const VkFormat vertexFormats[] =
1594         {
1595                 VK_FORMAT_R8_UNORM,
1596                 VK_FORMAT_R8_SNORM,
1597                 VK_FORMAT_R8_UINT,
1598                 VK_FORMAT_R8_SINT,
1599                 VK_FORMAT_R8G8_UNORM,
1600                 VK_FORMAT_R8G8_SNORM,
1601                 VK_FORMAT_R8G8_UINT,
1602                 VK_FORMAT_R8G8_SINT,
1603                 VK_FORMAT_R8G8B8A8_UNORM,
1604                 VK_FORMAT_R8G8B8A8_SNORM,
1605                 VK_FORMAT_R8G8B8A8_UINT,
1606                 VK_FORMAT_R8G8B8A8_SINT,
1607                 VK_FORMAT_B8G8R8A8_UNORM,
1608                 VK_FORMAT_R16_UNORM,
1609                 VK_FORMAT_R16_SNORM,
1610                 VK_FORMAT_R16_UINT,
1611                 VK_FORMAT_R16_SINT,
1612                 VK_FORMAT_R16_SFLOAT,
1613                 VK_FORMAT_R16G16_UNORM,
1614                 VK_FORMAT_R16G16_SNORM,
1615                 VK_FORMAT_R16G16_UINT,
1616                 VK_FORMAT_R16G16_SINT,
1617                 VK_FORMAT_R16G16_SFLOAT,
1618                 VK_FORMAT_R16G16B16A16_UNORM,
1619                 VK_FORMAT_R16G16B16A16_SNORM,
1620                 VK_FORMAT_R16G16B16A16_UINT,
1621                 VK_FORMAT_R16G16B16A16_SINT,
1622                 VK_FORMAT_R16G16B16A16_SFLOAT,
1623                 VK_FORMAT_R32_UINT,
1624                 VK_FORMAT_R32_SINT,
1625                 VK_FORMAT_R32_SFLOAT,
1626                 VK_FORMAT_R32G32_UINT,
1627                 VK_FORMAT_R32G32_SINT,
1628                 VK_FORMAT_R32G32_SFLOAT,
1629                 VK_FORMAT_R32G32B32_UINT,
1630                 VK_FORMAT_R32G32B32_SINT,
1631                 VK_FORMAT_R32G32B32_SFLOAT,
1632                 VK_FORMAT_R32G32B32A32_UINT,
1633                 VK_FORMAT_R32G32B32A32_SINT,
1634                 VK_FORMAT_R32G32B32A32_SFLOAT
1635         };
1636
1637         de::MovePtr<tcu::TestCaseGroup> multipleAttributeTests (new tcu::TestCaseGroup(testCtx, "multiple_attributes", "Uses more than one attribute"));
1638
1639         // Find compatible VK formats for each GLSL vertex type
1640         CompatibleFormats compatibleFormats[VertexInputTest::GLSL_TYPE_COUNT];
1641         {
1642                 for (int glslTypeNdx = 0; glslTypeNdx < VertexInputTest::GLSL_TYPE_COUNT; glslTypeNdx++)
1643                 {
1644                         for (int formatNdx = 0; formatNdx < DE_LENGTH_OF_ARRAY(vertexFormats); formatNdx++)
1645                         {
1646                                 if (VertexInputTest::isCompatibleType(vertexFormats[formatNdx], (VertexInputTest::GlslType)glslTypeNdx))
1647                                         compatibleFormats[glslTypeNdx].compatibleVkFormats.push_back(vertexFormats[formatNdx]);
1648                         }
1649                 }
1650         }
1651
1652         de::Random                                              randomFunc                              (102030);
1653         GlslTypeCombinationsIterator    glslTypeCombinationsItr (VertexInputTest::GLSL_TYPE_DOUBLE, 3); // Exclude double values, which are not included in vertexFormats
1654         de::MovePtr<tcu::TestCaseGroup> oneToOneAttributeTests  (new tcu::TestCaseGroup(testCtx, "attributes", ""));
1655         de::MovePtr<tcu::TestCaseGroup> oneToManyAttributeTests (new tcu::TestCaseGroup(testCtx, "attributes", ""));
1656
1657         while (glslTypeCombinationsItr.hasNext())
1658         {
1659                 const std::vector<VertexInputTest::GlslType>    glslTypes               = glslTypeCombinationsItr.next();
1660                 std::vector<VertexInputTest::AttributeInfo>             attributeInfos  (glslTypes.size());
1661
1662                 for (size_t attributeNdx = 0; attributeNdx < attributeInfos.size(); attributeNdx++)
1663                 {
1664                         DE_ASSERT(!compatibleFormats[glslTypes[attributeNdx]].compatibleVkFormats.empty());
1665
1666                         // Select a random compatible format
1667                         const std::vector<VkFormat>& formats = compatibleFormats[glslTypes[attributeNdx]].compatibleVkFormats;
1668                         const VkFormat format = formats[randomFunc.getUint32() % formats.size()];
1669
1670                         attributeInfos[attributeNdx].glslType   = glslTypes[attributeNdx];
1671                         attributeInfos[attributeNdx].inputRate  = (attributeNdx % 2 == 0) ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE;
1672                         attributeInfos[attributeNdx].vkType             = format;
1673                 }
1674
1675                 const std::string       caseName        = getAttributeInfosCaseName(attributeInfos);
1676                 const std::string       caseDesc        = getAttributeInfosDescription(attributeInfos);
1677
1678                 oneToOneAttributeTests->addChild(new VertexInputTest(testCtx, caseName, caseDesc, attributeInfos, VertexInputTest::BINDING_MAPPING_ONE_TO_ONE));
1679                 oneToManyAttributeTests->addChild(new VertexInputTest(testCtx, caseName, caseDesc, attributeInfos, VertexInputTest::BINDING_MAPPING_ONE_TO_MANY));
1680         }
1681
1682         de::MovePtr<tcu::TestCaseGroup> bindingOneToOneTests    (new tcu::TestCaseGroup(testCtx, "binding_one_to_one", "Each attribute uses a unique binding"));
1683         bindingOneToOneTests->addChild(oneToOneAttributeTests.release());
1684         multipleAttributeTests->addChild(bindingOneToOneTests.release());
1685
1686         de::MovePtr<tcu::TestCaseGroup> bindingOneToManyTests   (new tcu::TestCaseGroup(testCtx, "binding_one_to_many", "Attributes share the same binding"));
1687         bindingOneToManyTests->addChild(oneToManyAttributeTests.release());
1688         multipleAttributeTests->addChild(bindingOneToManyTests.release());
1689
1690         return multipleAttributeTests;
1691 }
1692
1693 } // anonymous
1694
1695 tcu::TestCaseGroup* createVertexInputTests (tcu::TestContext& testCtx)
1696 {
1697         de::MovePtr<tcu::TestCaseGroup> vertexInputTests (new tcu::TestCaseGroup(testCtx, "vertex_input", ""));
1698
1699         vertexInputTests->addChild(createSingleAttributeTests(testCtx).release());
1700         vertexInputTests->addChild(createMultipleAttributeTests(testCtx).release());
1701
1702         return vertexInputTests.release();
1703 }
1704
1705 } // pipeline
1706 } // vkt