external/vulkancts/modules/vulkan/pipeline/vktPipelineDepthTests.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  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  *//*!
  21  * \file
  22  * \brief Depth Tests
  23  *//*--------------------------------------------------------------------*/
  24
  25 #include "vktPipelineDepthTests.hpp"
  26 #include "vktPipelineClearUtil.hpp"
  27 #include "vktPipelineImageUtil.hpp"
  28 #include "vktPipelineVertexUtil.hpp"
  29 #include "vktPipelineReferenceRenderer.hpp"
  30 #include "vktTestCase.hpp"
  31 #include "vktTestCaseUtil.hpp"
  32 #include "vkImageUtil.hpp"
  33 #include "vkMemUtil.hpp"
  34 #include "vkPrograms.hpp"
  35 #include "vkQueryUtil.hpp"
  36 #include "vkRef.hpp"
  37 #include "vkRefUtil.hpp"
  38 #include "vkTypeUtil.hpp"
  39 #include "tcuImageCompare.hpp"
  40 #include "deUniquePtr.hpp"
  41 #include "deStringUtil.hpp"
  42 #include "deMemory.h"
  43
  44 #include <sstream>
  45 #include <vector>
  46
  47 namespace vkt
  48 {
  49 namespace pipeline
  50 {
  51
  52 using namespace vk;
  53
  54 namespace
  55 {
  56
  57 bool isSupportedDepthStencilFormat (const InstanceInterface& instanceInterface, VkPhysicalDevice device, VkFormat format)
  58 {
  59         VkFormatProperties formatProps;
  60
  61         instanceInterface.getPhysicalDeviceFormatProperties(device, format, &formatProps);
  62
  63         return (formatProps.optimalTilingFeatures & VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT) != 0u;
  64 }
  65
  66 tcu::TestStatus testSupportsDepthStencilFormat (Context& context, VkFormat format)
  67 {
  68         DE_ASSERT(vk::isDepthStencilFormat(format));
  69
  70         if (isSupportedDepthStencilFormat(context.getInstanceInterface(), context.getPhysicalDevice(), format))
  71                 return tcu::TestStatus::pass("Format can be used in depth/stencil attachment");
  72         else
  73                 return tcu::TestStatus::fail("Unsupported depth/stencil attachment format");
  74 }
  75
  76 tcu::TestStatus testSupportsAtLeastOneDepthStencilFormat (Context& context, const std::vector<VkFormat> formats)
  77 {
  78         std::ostringstream      supportedFormatsMsg;
  79         bool                            pass                                    = false;
  80
  81         DE_ASSERT(!formats.empty());
  82
  83         for (size_t formatNdx = 0; formatNdx < formats.size(); formatNdx++)
  84         {
  85                 const VkFormat format = formats[formatNdx];
  86
  87                 DE_ASSERT(vk::isDepthStencilFormat(format));
  88
  89                 if (isSupportedDepthStencilFormat(context.getInstanceInterface(), context.getPhysicalDevice(), format))
  90                 {
  91                         pass = true;
  92                         supportedFormatsMsg << vk::getFormatName(format);
  93
  94                         if (formatNdx < formats.size() - 1)
  95                                 supportedFormatsMsg << ", ";
  96                 }
  97         }
  98
  99         if (pass)
 100                 return tcu::TestStatus::pass(std::string("Supported depth/stencil formats: ") + supportedFormatsMsg.str());
 101         else
 102                 return tcu::TestStatus::fail("All depth/stencil formats are unsupported");
 103 }
 104
 105 class DepthTest : public vkt::TestCase
 106 {
 107 public:
 108         enum
 109         {
 110                 QUAD_COUNT = 4
 111         };
 112
 113         static const float                                      quadDepths[QUAD_COUNT];
 114
 115                                                                                 DepthTest                               (tcu::TestContext&              testContext,
 116                                                                                                                                  const std::string&             name,
 117                                                                                                                                  const std::string&             description,
 118                                                                                                                                  const VkFormat                 depthFormat,
 119                                                                                                                                  const VkCompareOp              depthCompareOps[QUAD_COUNT]);
 120         virtual                                                         ~DepthTest                              (void);
 121         virtual void                                            initPrograms                    (SourceCollections& programCollection) const;
 122         virtual TestInstance*                           createInstance                  (Context& context) const;
 123
 124 private:
 125         const VkFormat                                          m_depthFormat;
 126         VkCompareOp                                                     m_depthCompareOps[QUAD_COUNT];
 127 };
 128
 129 class DepthTestInstance : public vkt::TestInstance
 130 {
 131 public:
 132                                                                                 DepthTestInstance               (Context& context, const VkFormat depthFormat, const VkCompareOp depthCompareOps[DepthTest::QUAD_COUNT]);
 133         virtual                                                         ~DepthTestInstance              (void);
 134         virtual tcu::TestStatus                         iterate                                 (void);
 135
 136 private:
 137         tcu::TestStatus                                         verifyImage                             (void);
 138
 139 private:
 140         VkCompareOp                                                     m_depthCompareOps[DepthTest::QUAD_COUNT];
 141         const tcu::UVec2                                        m_renderSize;
 142         const VkFormat                                          m_colorFormat;
 143         const VkFormat                                          m_depthFormat;
 144         VkImageSubresourceRange                         m_depthImageSubresourceRange;
 145
 146         Move<VkImage>                                           m_colorImage;
 147         de::MovePtr<Allocation>                         m_colorImageAlloc;
 148         Move<VkImage>                                           m_depthImage;
 149         de::MovePtr<Allocation>                         m_depthImageAlloc;
 150         Move<VkImageView>                                       m_colorAttachmentView;
 151         Move<VkImageView>                                       m_depthAttachmentView;
 152         Move<VkRenderPass>                                      m_renderPass;
 153         Move<VkFramebuffer>                                     m_framebuffer;
 154
 155         Move<VkShaderModule>                            m_vertexShaderModule;
 156         Move<VkShaderModule>                            m_fragmentShaderModule;
 157
 158         Move<VkBuffer>                                          m_vertexBuffer;
 159         std::vector<Vertex4RGBA>                        m_vertices;
 160         de::MovePtr<Allocation>                         m_vertexBufferAlloc;
 161
 162         Move<VkPipelineLayout>                          m_pipelineLayout;
 163         Move<VkPipeline>                                        m_graphicsPipelines[DepthTest::QUAD_COUNT];
 164
 165         Move<VkCommandPool>                                     m_cmdPool;
 166         Move<VkCommandBuffer>                           m_cmdBuffer;
 167
 168         Move<VkFence>                                           m_fence;
 169 };
 170
 171 const float DepthTest::quadDepths[QUAD_COUNT] =
 172 {
 173         0.1f,
 174         0.0f,
 175         0.3f,
 176         0.2f
 177 };
 178
 179 DepthTest::DepthTest (tcu::TestContext&         testContext,
 180                                           const std::string&    name,
 181                                           const std::string&    description,
 182                                           const VkFormat                depthFormat,
 183                                           const VkCompareOp             depthCompareOps[QUAD_COUNT])
 184         : vkt::TestCase (testContext, name, description)
 185         , m_depthFormat (depthFormat)
 186 {
 187         deMemcpy(m_depthCompareOps, depthCompareOps, sizeof(VkCompareOp) * QUAD_COUNT);
 188 }
 189
 190 DepthTest::~DepthTest (void)
 191 {
 192 }
 193
 194 TestInstance* DepthTest::createInstance (Context& context) const
 195 {
 196         return new DepthTestInstance(context, m_depthFormat, m_depthCompareOps);
 197 }
 198
 199 void DepthTest::initPrograms (SourceCollections& programCollection) const
 200 {
 201         programCollection.glslSources.add("color_vert") << glu::VertexSource(
 202                 "#version 310 es\n"
 203                 "layout(location = 0) in vec4 position;\n"
 204                 "layout(location = 1) in vec4 color;\n"
 205                 "layout(location = 0) out highp vec4 vtxColor;\n"
 206                 "void main (void)\n"
 207                 "{\n"
 208                 "       gl_Position = position;\n"
 209                 "       vtxColor = color;\n"
 210                 "}\n");
 211
 212         programCollection.glslSources.add("color_frag") << glu::FragmentSource(
 213                 "#version 310 es\n"
 214                 "layout(location = 0) in highp vec4 vtxColor;\n"
 215                 "layout(location = 0) out highp vec4 fragColor;\n"
 216                 "void main (void)\n"
 217                 "{\n"
 218                 "       fragColor = vtxColor;\n"
 219                 "}\n");
 220 }
 221
 222 DepthTestInstance::DepthTestInstance (Context&                          context,
 223                                                                           const VkFormat                depthFormat,
 224                                                                           const VkCompareOp             depthCompareOps[DepthTest::QUAD_COUNT])
 225         : vkt::TestInstance     (context)
 226         , m_renderSize          (32, 32)
 227         , m_colorFormat         (VK_FORMAT_R8G8B8A8_UNORM)
 228         , m_depthFormat         (depthFormat)
 229 {
 230         const DeviceInterface&          vk                                              = context.getDeviceInterface();
 231         const VkDevice                          vkDevice                                = context.getDevice();
 232         const deUint32                          queueFamilyIndex                = context.getUniversalQueueFamilyIndex();
 233         SimpleAllocator                         memAlloc                                (vk, vkDevice, getPhysicalDeviceMemoryProperties(context.getInstanceInterface(), context.getPhysicalDevice()));
 234         const VkComponentMapping        componentMappingRGBA    = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
 235
 236         // Copy depth operators
 237         deMemcpy(m_depthCompareOps, depthCompareOps, sizeof(VkCompareOp) * DepthTest::QUAD_COUNT);
 238
 239         // Create color image
 240         {
 241                 const VkImageCreateInfo colorImageParams =
 242                 {
 243                         VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,                                                                            // VkStructureType                      sType;
 244                         DE_NULL,                                                                                                                                        // const void*                          pNext;
 245                         0u,                                                                                                                                                     // VkImageCreateFlags           flags;
 246                         VK_IMAGE_TYPE_2D,                                                                                                                       // VkImageType                          imageType;
 247                         m_colorFormat,                                                                                                                          // VkFormat                                     format;
 248                         { m_renderSize.x(), m_renderSize.y(), 1u },                                                                     // VkExtent3D                           extent;
 249                         1u,                                                                                                                                                     // deUint32                                     mipLevels;
 250                         1u,                                                                                                                                                     // deUint32                                     arrayLayers;
 251                         VK_SAMPLE_COUNT_1_BIT,                                                                                                          // VkSampleCountFlagBits        samples;
 252                         VK_IMAGE_TILING_OPTIMAL,                                                                                                        // VkImageTiling                        tiling;
 253                         VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT,          // VkImageUsageFlags            usage;
 254                         VK_SHARING_MODE_EXCLUSIVE,                                                                                                      // VkSharingMode                        sharingMode;
 255                         1u,                                                                                                                                                     // deUint32                                     queueFamilyIndexCount;
 256                         &queueFamilyIndex,                                                                                                                      // const deUint32*                      pQueueFamilyIndices;
 257                         VK_IMAGE_LAYOUT_UNDEFINED,                                                                                                      // VkImageLayout                        initialLayout;
 258                 };
 259
 260                 m_colorImage                    = createImage(vk, vkDevice, &colorImageParams);
 261
 262                 // Allocate and bind color image memory
 263                 m_colorImageAlloc               = memAlloc.allocate(getImageMemoryRequirements(vk, vkDevice, *m_colorImage), MemoryRequirement::Any);
 264                 VK_CHECK(vk.bindImageMemory(vkDevice, *m_colorImage, m_colorImageAlloc->getMemory(), m_colorImageAlloc->getOffset()));
 265         }
 266
 267         // Create depth image
 268         {
 269                 // Check format support
 270                 if (!isSupportedDepthStencilFormat(context.getInstanceInterface(), context.getPhysicalDevice(), m_depthFormat))
 271                         throw tcu::NotSupportedError(std::string("Unsupported depth/stencil format: ") + getFormatName(m_depthFormat));
 272
 273                 const VkImageCreateInfo depthImageParams =
 274                 {
 275                         VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,                    // VkStructureType                      sType;
 276                         DE_NULL,                                                                                // const void*                          pNext;
 277                         0u,                                                                                             // VkImageCreateFlags           flags;
 278                         VK_IMAGE_TYPE_2D,                                                               // VkImageType                          imageType;
 279                         m_depthFormat,                                                                  // VkFormat                                     format;
 280                         { m_renderSize.x(), m_renderSize.y(), 1u },             // VkExtent3D                           extent;
 281                         1u,                                                                                             // deUint32                                     mipLevels;
 282                         1u,                                                                                             // deUint32                                     arrayLayers;
 283                         VK_SAMPLE_COUNT_1_BIT,                                                  // VkSampleCountFlagBits        samples;
 284                         VK_IMAGE_TILING_OPTIMAL,                                                // VkImageTiling                        tiling;
 285                         VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT,    // VkImageUsageFlags            usage;
 286                         VK_SHARING_MODE_EXCLUSIVE,                                              // VkSharingMode                        sharingMode;
 287                         1u,                                                                                             // deUint32                                     queueFamilyIndexCount;
 288                         &queueFamilyIndex,                                                              // const deUint32*                      pQueueFamilyIndices;
 289                         VK_IMAGE_LAYOUT_UNDEFINED,                                              // VkImageLayout                        initialLayout;
 290                 };
 291
 292                 m_depthImage = createImage(vk, vkDevice, &depthImageParams);
 293
 294                 // Allocate and bind depth image memory
 295                 m_depthImageAlloc = memAlloc.allocate(getImageMemoryRequirements(vk, vkDevice, *m_depthImage), MemoryRequirement::Any);
 296                 VK_CHECK(vk.bindImageMemory(vkDevice, *m_depthImage, m_depthImageAlloc->getMemory(), m_depthImageAlloc->getOffset()));
 297
 298                 const VkImageAspectFlags aspect = (mapVkFormat(m_depthFormat).order == tcu::TextureFormat::DS ? VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT
 299                                                                                                                                                                                                           : VK_IMAGE_ASPECT_DEPTH_BIT);
 300                 m_depthImageSubresourceRange    = makeImageSubresourceRange(aspect, 0u, depthImageParams.mipLevels, 0u, depthImageParams.arrayLayers);
 301         }
 302
 303         // Create color attachment view
 304         {
 305                 const VkImageViewCreateInfo colorAttachmentViewParams =
 306                 {
 307                         VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,               // VkStructureType                      sType;
 308                         DE_NULL,                                                                                // const void*                          pNext;
 309                         0u,                                                                                             // VkImageViewCreateFlags       flags;
 310                         *m_colorImage,                                                                  // VkImage                                      image;
 311                         VK_IMAGE_VIEW_TYPE_2D,                                                  // VkImageViewType                      viewType;
 312                         m_colorFormat,                                                                  // VkFormat                                     format;
 313                         componentMappingRGBA,                                                   // VkComponentMapping           components;
 314                         { VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u }   // VkImageSubresourceRange      subresourceRange;
 315                 };
 316
 317                 m_colorAttachmentView = createImageView(vk, vkDevice, &colorAttachmentViewParams);
 318         }
 319
 320         // Create depth attachment view
 321         {
 322                 const VkImageViewCreateInfo depthAttachmentViewParams =
 323                 {
 324                         VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,               // VkStructureType                      sType;
 325                         DE_NULL,                                                                                // const void*                          pNext;
 326                         0u,                                                                                             // VkImageViewCreateFlags       flags;
 327                         *m_depthImage,                                                                  // VkImage                                      image;
 328                         VK_IMAGE_VIEW_TYPE_2D,                                                  // VkImageViewType                      viewType;
 329                         m_depthFormat,                                                                  // VkFormat                                     format;
 330                         componentMappingRGBA,                                                   // VkComponentMapping           components;
 331                         m_depthImageSubresourceRange,                                   // VkImageSubresourceRange      subresourceRange;
 332                 };
 333
 334                 m_depthAttachmentView = createImageView(vk, vkDevice, &depthAttachmentViewParams);
 335         }
 336
 337         // Create render pass
 338         {
 339                 const VkAttachmentDescription colorAttachmentDescription =
 340                 {
 341                         0u,                                                                                                     // VkAttachmentDescriptionFlags         flags;
 342                         m_colorFormat,                                                                          // VkFormat                                                     format;
 343                         VK_SAMPLE_COUNT_1_BIT,                                                          // VkSampleCountFlagBits                        samples;
 344                         VK_ATTACHMENT_LOAD_OP_CLEAR,                                            // VkAttachmentLoadOp                           loadOp;
 345                         VK_ATTACHMENT_STORE_OP_STORE,                                           // VkAttachmentStoreOp                          storeOp;
 346                         VK_ATTACHMENT_LOAD_OP_DONT_CARE,                                        // VkAttachmentLoadOp                           stencilLoadOp;
 347                         VK_ATTACHMENT_STORE_OP_DONT_CARE,                                       // VkAttachmentStoreOp                          stencilStoreOp;
 348                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,                       // VkImageLayout                                        initialLayout;
 349                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL                        // VkImageLayout                                        finalLayout;
 350                 };
 351
 352                 const VkAttachmentDescription depthAttachmentDescription =
 353                 {
 354                         0u,                                                                                                     // VkAttachmentDescriptionFlags         flags;
 355                         m_depthFormat,                                                                          // VkFormat                                                     format;
 356                         VK_SAMPLE_COUNT_1_BIT,                                                          // VkSampleCountFlagBits                        samples;
 357                         VK_ATTACHMENT_LOAD_OP_CLEAR,                                            // VkAttachmentLoadOp                           loadOp;
 358                         VK_ATTACHMENT_STORE_OP_DONT_CARE,                                       // VkAttachmentStoreOp                          storeOp;
 359                         VK_ATTACHMENT_LOAD_OP_DONT_CARE,                                        // VkAttachmentLoadOp                           stencilLoadOp;
 360                         VK_ATTACHMENT_STORE_OP_DONT_CARE,                                       // VkAttachmentStoreOp                          stencilStoreOp;
 361                         VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,       // VkImageLayout                                        initialLayout;
 362                         VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,       // VkImageLayout                                        finalLayout;
 363                 };
 364
 365                 const VkAttachmentDescription attachments[2] =
 366                 {
 367                         colorAttachmentDescription,
 368                         depthAttachmentDescription
 369                 };
 370
 371                 const VkAttachmentReference colorAttachmentReference =
 372                 {
 373                         0u,                                                                                                     // deUint32                     attachment;
 374                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL                        // VkImageLayout        layout;
 375                 };
 376
 377                 const VkAttachmentReference depthAttachmentReference =
 378                 {
 379                         1u,                                                                                                     // deUint32                     attachment;
 380                         VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL        // VkImageLayout        layout;
 381                 };
 382
 383                 const VkSubpassDescription subpassDescription =
 384                 {
 385                         0u,                                                                                                     // VkSubpassDescriptionFlags            flags;
 386                         VK_PIPELINE_BIND_POINT_GRAPHICS,                                        // VkPipelineBindPoint                          pipelineBindPoint;
 387                         0u,                                                                                                     // deUint32                                                     inputAttachmentCount;
 388                         DE_NULL,                                                                                        // const VkAttachmentReference*         pInputAttachments;
 389                         1u,                                                                                                     // deUint32                                                     colorAttachmentCount;
 390                         &colorAttachmentReference,                                                      // const VkAttachmentReference*         pColorAttachments;
 391                         DE_NULL,                                                                                        // const VkAttachmentReference*         pResolveAttachments;
 392                         &depthAttachmentReference,                                                      // const VkAttachmentReference*         pDepthStencilAttachment;
 393                         0u,                                                                                                     // deUint32                                                     preserveAttachmentCount;
 394                         DE_NULL                                                                                         // const VkAttachmentReference*         pPreserveAttachments;
 395                 };
 396
 397                 const VkRenderPassCreateInfo renderPassParams =
 398                 {
 399                         VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,                      // VkStructureType                                      sType;
 400                         DE_NULL,                                                                                        // const void*                                          pNext;
 401                         0u,                                                                                                     // VkRenderPassCreateFlags                      flags;
 402                         2u,                                                                                                     // deUint32                                                     attachmentCount;
 403                         attachments,                                                                            // const VkAttachmentDescription*       pAttachments;
 404                         1u,                                                                                                     // deUint32                                                     subpassCount;
 405                         &subpassDescription,                                                            // const VkSubpassDescription*          pSubpasses;
 406                         0u,                                                                                                     // deUint32                                                     dependencyCount;
 407                         DE_NULL                                                                                         // const VkSubpassDependency*           pDependencies;
 408                 };
 409
 410                 m_renderPass = createRenderPass(vk, vkDevice, &renderPassParams);
 411         }
 412
 413         // Create framebuffer
 414         {
 415                 const VkImageView attachmentBindInfos[2] =
 416                 {
 417                         *m_colorAttachmentView,
 418                         *m_depthAttachmentView,
 419                 };
 420
 421                 const VkFramebufferCreateInfo framebufferParams =
 422                 {
 423                         VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO,                      // VkStructureType                              sType;
 424                         DE_NULL,                                                                                        // const void*                                  pNext;
 425                         0u,                                                                                                     // VkFramebufferCreateFlags             flags;
 426                         *m_renderPass,                                                                          // VkRenderPass                                 renderPass;
 427                         2u,                                                                                                     // deUint32                                             attachmentCount;
 428                         attachmentBindInfos,                                                            // const VkImageView*                   pAttachments;
 429                         (deUint32)m_renderSize.x(),                                                     // deUint32                                             width;
 430                         (deUint32)m_renderSize.y(),                                                     // deUint32                                             height;
 431                         1u                                                                                                      // deUint32                                             layers;
 432                 };
 433
 434                 m_framebuffer = createFramebuffer(vk, vkDevice, &framebufferParams);
 435         }
 436
 437         // Create pipeline layout
 438         {
 439                 const VkPipelineLayoutCreateInfo pipelineLayoutParams =
 440                 {
 441                         VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,          // VkStructureType                                      sType;
 442                         DE_NULL,                                                                                        // const void*                                          pNext;
 443                         0u,                                                                                                     // VkPipelineLayoutCreateFlags          flags;
 444                         0u,                                                                                                     // deUint32                                                     setLayoutCount;
 445                         DE_NULL,                                                                                        // const VkDescriptorSetLayout*         pSetLayouts;
 446                         0u,                                                                                                     // deUint32                                                     pushConstantRangeCount;
 447                         DE_NULL                                                                                         // const VkPushConstantRange*           pPushConstantRanges;
 448                 };
 449
 450                 m_pipelineLayout = createPipelineLayout(vk, vkDevice, &pipelineLayoutParams);
 451         }
 452
 453         // Shader modules
 454         m_vertexShaderModule    = createShaderModule(vk, vkDevice, m_context.getBinaryCollection().get("color_vert"), 0);
 455         m_fragmentShaderModule  = createShaderModule(vk, vkDevice, m_context.getBinaryCollection().get("color_frag"), 0);
 456
 457         // Create pipeline
 458         {
 459                 const VkPipelineShaderStageCreateInfo shaderStages[2] =
 460                 {
 461                         {
 462                                 VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,    // VkStructureType                                              sType;
 463                                 DE_NULL,                                                                                                // const void*                                                  pNext;
 464                                 0u,                                                                                                             // VkPipelineShaderStageCreateFlags             flags;
 465                                 VK_SHADER_STAGE_VERTEX_BIT,                                                             // VkShaderStageFlagBits                                stage;
 466                                 *m_vertexShaderModule,                                                                  // VkShaderModule                                               module;
 467                                 "main",                                                                                                 // const char*                                                  pName;
 468                                 DE_NULL                                                                                                 // const VkSpecializationInfo*                  pSpecializationInfo;
 469                         },
 470                         {
 471                                 VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,    // VkStructureType                                              sType;
 472                                 DE_NULL,                                                                                                // const void*                                                  pNext;
 473                                 0u,                                                                                                             // VkPipelineShaderStageCreateFlags             flags;
 474                                 VK_SHADER_STAGE_FRAGMENT_BIT,                                                   // VkShaderStageFlagBits                                stage;
 475                                 *m_fragmentShaderModule,                                                                // VkShaderModule                                               module;
 476                                 "main",                                                                                                 // const char*                                                  pName;
 477                                 DE_NULL                                                                                                 // const VkSpecializationInfo*                  pSpecializationInfo;
 478                         }
 479                 };
 480
 481                 const VkVertexInputBindingDescription vertexInputBindingDescription =
 482                 {
 483                         0u,                                                                     // deUint32                                     binding;
 484                         sizeof(Vertex4RGBA),                            // deUint32                                     strideInBytes;
 485                         VK_VERTEX_INPUT_RATE_VERTEX                     // VkVertexInputStepRate        inputRate;
 486                 };
 487
 488                 const VkVertexInputAttributeDescription vertexInputAttributeDescriptions[2] =
 489                 {
 490                         {
 491                                 0u,                                                                     // deUint32     location;
 492                                 0u,                                                                     // deUint32     binding;
 493                                 VK_FORMAT_R32G32B32A32_SFLOAT,          // VkFormat     format;
 494                                 0u                                                                      // deUint32     offset;
 495                         },
 496                         {
 497                                 1u,                                                                     // deUint32     location;
 498                                 0u,                                                                     // deUint32     binding;
 499                                 VK_FORMAT_R32G32B32A32_SFLOAT,          // VkFormat     format;
 500                                 DE_OFFSET_OF(Vertex4RGBA, color),       // deUint32     offset;
 501                         }
 502                 };
 503
 504                 const VkPipelineVertexInputStateCreateInfo vertexInputStateParams =
 505                 {
 506                         VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,              // VkStructureType                                                      sType;
 507                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 508                         0u,                                                                                                                             // VkPipelineVertexInputStateCreateFlags        flags;
 509                         1u,                                                                                                                             // deUint32                                                                     vertexBindingDescriptionCount;
 510                         &vertexInputBindingDescription,                                                                 // const VkVertexInputBindingDescription*       pVertexBindingDescriptions;
 511                         2u,                                                                                                                             // deUint32                                                                     vertexAttributeDescriptionCount;
 512                         vertexInputAttributeDescriptions                                                                // const VkVertexInputAttributeDescription*     pVertexAttributeDescriptions;
 513                 };
 514
 515                 const VkPipelineInputAssemblyStateCreateInfo inputAssemblyStateParams =
 516                 {
 517                         VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,    // VkStructureType                                                      sType;
 518                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 519                         0u,                                                                                                                             // VkPipelineInputAssemblyStateCreateFlags      flags;
 520                         VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,                                                    // VkPrimitiveTopology                                          topology;
 521                         false                                                                                                                   // VkBool32                                                                     primitiveRestartEnable;
 522                 };
 523
 524                 const VkViewport viewport =
 525                 {
 526                         0.0f,                                           // float        x;
 527                         0.0f,                                           // float        y;
 528                         (float)m_renderSize.x(),        // float        width;
 529                         (float)m_renderSize.y(),        // float        height;
 530                         0.0f,                                           // float        minDepth;
 531                         1.0f                                            // float        maxDepth;
 532                 };
 533                 const VkRect2D scissor =
 534                 {
 535                         { 0, 0 },                                                                                               // VkOffset2D  offset;
 536                         { m_renderSize.x(), m_renderSize.y() }                                  // VkExtent2D  extent;
 537                 };
 538                 const VkPipelineViewportStateCreateInfo viewportStateParams =
 539                 {
 540                         VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,                  // VkStructureType                                              sType;
 541                         DE_NULL,                                                                                                                // const void*                                                  pNext;
 542                         0u,                                                                                                                             // VkPipelineViewportStateCreateFlags   flags;
 543                         1u,                                                                                                                             // deUint32                                                             viewportCount;
 544                         &viewport,                                                                                                              // const VkViewport*                                    pViewports;
 545                         1u,                                                                                                                             // deUint32                                                             scissorCount;
 546                         &scissor                                                                                                                // const VkRect2D*                                              pScissors;
 547                 };
 548
 549                 const VkPipelineRasterizationStateCreateInfo rasterStateParams =
 550                 {
 551                         VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,             // VkStructureType                                                      sType;
 552                         DE_NULL,                                                                                                                // const void*                                                          pNext;
 553                         0u,                                                                                                                             // VkPipelineRasterizationStateCreateFlags      flags;
 554                         false,                                                                                                                  // VkBool32                                                                     depthClampEnable;
 555                         false,                                                                                                                  // VkBool32                                                                     rasterizerDiscardEnable;
 556                         VK_POLYGON_MODE_FILL,                                                                                   // VkPolygonMode                                                        polygonMode;
 557                         VK_CULL_MODE_NONE,                                                                                              // VkCullModeFlags                                                      cullMode;
 558                         VK_FRONT_FACE_COUNTER_CLOCKWISE,                                                                // VkFrontFace                                                          frontFace;
 559                         VK_FALSE,                                                                                                               // VkBool32                                                                     depthBiasEnable;
 560                         0.0f,                                                                                                                   // float                                                                        depthBiasConstantFactor;
 561                         0.0f,                                                                                                                   // float                                                                        depthBiasClamp;
 562                         0.0f,                                                                                                                   // float                                                                        depthBiasSlopeFactor;
 563                         1.0f,                                                                                                                   // float                                                                        lineWidth;
 564                 };
 565
 566                 const VkPipelineColorBlendAttachmentState colorBlendAttachmentState =
 567                 {
 568                         false,                                                                                                                                          // VkBool32                                     blendEnable;
 569                         VK_BLEND_FACTOR_ONE,                                                                                                            // VkBlendFactor                        srcColorBlendFactor;
 570                         VK_BLEND_FACTOR_ZERO,                                                                                                           // VkBlendFactor                        dstColorBlendFactor;
 571                         VK_BLEND_OP_ADD,                                                                                                                        // VkBlendOp                            colorBlendOp;
 572                         VK_BLEND_FACTOR_ONE,                                                                                                            // VkBlendFactor                        srcAlphaBlendFactor;
 573                         VK_BLEND_FACTOR_ZERO,                                                                                                           // VkBlendFactor                        dstAlphaBlendFactor;
 574                         VK_BLEND_OP_ADD,                                                                                                                        // VkBlendOp                            alphaBlendOp;
 575                         VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |                                           // VkColorComponentFlags        colorWriteMask;
 576                                 VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT
 577                 };
 578
 579                 const VkPipelineColorBlendStateCreateInfo colorBlendStateParams =
 580                 {
 581                         VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,       // VkStructureType                                                              sType;
 582                         DE_NULL,                                                                                                        // const void*                                                                  pNext;
 583                         0,                                                                                                                      // VkPipelineColorBlendStateCreateFlags                 flags;
 584                         false,                                                                                                          // VkBool32                                                                             logicOpEnable;
 585                         VK_LOGIC_OP_COPY,                                                                                       // VkLogicOp                                                                    logicOp;
 586                         1u,                                                                                                                     // deUint32                                                                             attachmentCount;
 587                         &colorBlendAttachmentState,                                                                     // const VkPipelineColorBlendAttachmentState*   pAttachments;
 588                         { 0.0f, 0.0f, 0.0f, 0.0f },                                                                     // float                                                                                blendConstants[4];
 589                 };
 590
 591                 const VkPipelineMultisampleStateCreateInfo      multisampleStateParams  =
 592                 {
 593                         VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,       // VkStructureType                                                      sType;
 594                         DE_NULL,                                                                                                        // const void*                                                          pNext;
 595                         0u,                                                                                                                     // VkPipelineMultisampleStateCreateFlags        flags;
 596                         VK_SAMPLE_COUNT_1_BIT,                                                                          // VkSampleCountFlagBits                                        rasterizationSamples;
 597                         false,                                                                                                          // VkBool32                                                                     sampleShadingEnable;
 598                         0.0f,                                                                                                           // float                                                                        minSampleShading;
 599                         DE_NULL,                                                                                                        // const VkSampleMask*                                          pSampleMask;
 600                         false,                                                                                                          // VkBool32                                                                     alphaToCoverageEnable;
 601                         false                                                                                                           // VkBool32                                                                     alphaToOneEnable;
 602                 };
 603                 VkPipelineDepthStencilStateCreateInfo depthStencilStateParams =
 604                 {
 605                         VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO,     // VkStructureType                                                      sType;
 606                         DE_NULL,                                                                                                        // const void*                                                          pNext;
 607                         0u,                                                                                                                     // VkPipelineDepthStencilStateCreateFlags       flags;
 608                         true,                                                                                                           // VkBool32                                                                     depthTestEnable;
 609                         true,                                                                                                           // VkBool32                                                                     depthWriteEnable;
 610                         VK_COMPARE_OP_LESS,                                                                                     // VkCompareOp                                                          depthCompareOp;
 611                         false,                                                                                                          // VkBool32                                                                     depthBoundsTestEnable;
 612                         false,                                                                                                          // VkBool32                                                                     stencilTestEnable;
 613                         // VkStencilOpState     front;
 614                         {
 615                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  failOp;
 616                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  passOp;
 617                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  depthFailOp;
 618                                 VK_COMPARE_OP_NEVER,    // VkCompareOp  compareOp;
 619                                 0u,                                             // deUint32             compareMask;
 620                                 0u,                                             // deUint32             writeMask;
 621                                 0u,                                             // deUint32             reference;
 622                         },
 623                         // VkStencilOpState     back;
 624                         {
 625                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  failOp;
 626                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  passOp;
 627                                 VK_STENCIL_OP_KEEP,             // VkStencilOp  depthFailOp;
 628                                 VK_COMPARE_OP_NEVER,    // VkCompareOp  compareOp;
 629                                 0u,                                             // deUint32             compareMask;
 630                                 0u,                                             // deUint32             writeMask;
 631                                 0u,                                             // deUint32             reference;
 632                         },
 633                         0.0f,                                                                                                           // float                        minDepthBounds;
 634                         1.0f,                                                                                                           // float                        maxDepthBounds;
 635                 };
 636
 637                 const VkGraphicsPipelineCreateInfo graphicsPipelineParams =
 638                 {
 639                         VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,        // VkStructureType                                                                      sType;
 640                         DE_NULL,                                                                                        // const void*                                                                          pNext;
 641                         0u,                                                                                                     // VkPipelineCreateFlags                                                        flags;
 642                         2u,                                                                                                     // deUint32                                                                                     stageCount;
 643                         shaderStages,                                                                           // const VkPipelineShaderStageCreateInfo*                       pStages;
 644                         &vertexInputStateParams,                                                        // const VkPipelineVertexInputStateCreateInfo*          pVertexInputState;
 645                         &inputAssemblyStateParams,                                                      // const VkPipelineInputAssemblyStateCreateInfo*        pInputAssemblyState;
 646                         DE_NULL,                                                                                        // const VkPipelineTessellationStateCreateInfo*         pTessellationState;
 647                         &viewportStateParams,                                                           // const VkPipelineViewportStateCreateInfo*                     pViewportState;
 648                         &rasterStateParams,                                                                     // const VkPipelineRasterizationStateCreateInfo*        pRasterizationState;
 649                         &multisampleStateParams,                                                        // const VkPipelineMultisampleStateCreateInfo*          pMultisampleState;
 650                         &depthStencilStateParams,                                                       // const VkPipelineDepthStencilStateCreateInfo*         pDepthStencilState;
 651                         &colorBlendStateParams,                                                         // const VkPipelineColorBlendStateCreateInfo*           pColorBlendState;
 652                         (const VkPipelineDynamicStateCreateInfo*)DE_NULL,       // const VkPipelineDynamicStateCreateInfo*                      pDynamicState;
 653                         *m_pipelineLayout,                                                                      // VkPipelineLayout                                                                     layout;
 654                         *m_renderPass,                                                                          // VkRenderPass                                                                         renderPass;
 655                         0u,                                                                                                     // deUint32                                                                                     subpass;
 656                         0u,                                                                                                     // VkPipeline                                                                           basePipelineHandle;
 657                         0u,                                                                                                     // deInt32                                                                                      basePipelineIndex;
 658                 };
 659
 660                 for (int quadNdx = 0; quadNdx < DepthTest::QUAD_COUNT; quadNdx++)
 661                 {
 662                         depthStencilStateParams.depthCompareOp  = depthCompareOps[quadNdx];
 663                         m_graphicsPipelines[quadNdx]                    = createGraphicsPipeline(vk, vkDevice, DE_NULL, &graphicsPipelineParams);
 664                 }
 665         }
 666
 667         // Create vertex buffer
 668         {
 669                 const VkBufferCreateInfo vertexBufferParams =
 670                 {
 671                         VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,           // VkStructureType              sType;
 672                         DE_NULL,                                                                        // const void*                  pNext;
 673                         0u,                                                                                     // VkBufferCreateFlags  flags;
 674                         1024u,                                                                          // VkDeviceSize                 size;
 675                         VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,                      // VkBufferUsageFlags   usage;
 676                         VK_SHARING_MODE_EXCLUSIVE,                                      // VkSharingMode                sharingMode;
 677                         1u,                                                                                     // deUint32                             queueFamilyIndexCount;
 678                         &queueFamilyIndex                                                       // const deUint32*              pQueueFamilyIndices;
 679                 };
 680
 681                 m_vertices                      = createOverlappingQuads();
 682                 m_vertexBuffer          = createBuffer(vk, vkDevice, &vertexBufferParams);
 683                 m_vertexBufferAlloc     = memAlloc.allocate(getBufferMemoryRequirements(vk, vkDevice, *m_vertexBuffer), MemoryRequirement::HostVisible);
 684
 685                 VK_CHECK(vk.bindBufferMemory(vkDevice, *m_vertexBuffer, m_vertexBufferAlloc->getMemory(), m_vertexBufferAlloc->getOffset()));
 686
 687                 // Adjust depths
 688                 for (int quadNdx = 0; quadNdx < DepthTest::QUAD_COUNT; quadNdx++)
 689                         for (int vertexNdx = 0; vertexNdx < 6; vertexNdx++)
 690                                 m_vertices[quadNdx * 6 + vertexNdx].position.z() = DepthTest::quadDepths[quadNdx];
 691
 692                 // Load vertices into vertex buffer
 693                 deMemcpy(m_vertexBufferAlloc->getHostPtr(), m_vertices.data(), m_vertices.size() * sizeof(Vertex4RGBA));
 694                 flushMappedMemoryRange(vk, vkDevice, m_vertexBufferAlloc->getMemory(), m_vertexBufferAlloc->getOffset(), vertexBufferParams.size);
 695         }
 696
 697         // Create command pool
 698         {
 699                 const VkCommandPoolCreateInfo cmdPoolParams =
 700                 {
 701                         VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO,     // VkStructureType              sType;
 702                         DE_NULL,                                                                        // const void*                  pNext;
 703                         VK_COMMAND_POOL_CREATE_TRANSIENT_BIT,           // VkCmdPoolCreateFlags flags;
 704                         queueFamilyIndex                                                        // deUint32                             queueFamilyIndex;
 705                 };
 706
 707                 m_cmdPool = createCommandPool(vk, vkDevice, &cmdPoolParams);
 708         }
 709
 710         // Create command buffer
 711         {
 712                 const VkCommandBufferAllocateInfo cmdBufferAllocateInfo =
 713                 {
 714                         VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO, // VkStructureType                      sType;
 715                         DE_NULL,                                                                                // const void*                          pNext;
 716                         *m_cmdPool,                                                                             // VkCommandPool                        commandPool;
 717                         VK_COMMAND_BUFFER_LEVEL_PRIMARY,                                // VkCommandBufferLevel         level;
 718                         1u                                                                                              // deUint32                                     bufferCount;
 719                 };
 720
 721                 const VkCommandBufferBeginInfo cmdBufferBeginInfo =
 722                 {
 723                         VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,    // VkStructureType                                      sType;
 724                         DE_NULL,                                                                                // const void*                                          pNext;
 725                         0u,                                                                                             // VkCommandBufferUsageFlags            flags;
 726                         (const VkCommandBufferInheritanceInfo*)DE_NULL,
 727                 };
 728
 729                 const VkClearValue attachmentClearValues[2] =
 730                 {
 731                         defaultClearValue(m_colorFormat),
 732                         defaultClearValue(m_depthFormat),
 733                 };
 734
 735                 const VkRenderPassBeginInfo renderPassBeginInfo =
 736                 {
 737                         VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,                               // VkStructureType              sType;
 738                         DE_NULL,                                                                                                // const void*                  pNext;
 739                         *m_renderPass,                                                                                  // VkRenderPass                 renderPass;
 740                         *m_framebuffer,                                                                                 // VkFramebuffer                framebuffer;
 741                         { { 0, 0 }, { m_renderSize.x(), m_renderSize.y() } },   // VkRect2D                             renderArea;
 742                         2,                                                                                                              // deUint32                             clearValueCount;
 743                         attachmentClearValues                                                                   // const VkClearValue*  pClearValues;
 744                 };
 745
 746                 const VkImageMemoryBarrier imageLayoutBarriers[] =
 747                 {
 748                         // color image layout transition
 749                         {
 750                                 VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,                                                                 // VkStructureType            sType;
 751                                 DE_NULL,                                                                                                                                // const void*                pNext;
 752                                 (VkAccessFlags)0,                                                                                                               // VkAccessFlags              srcAccessMask;
 753                                 VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,                                                                   // VkAccessFlags              dstAccessMask;
 754                                 VK_IMAGE_LAYOUT_UNDEFINED,                                                                                              // VkImageLayout              oldLayout;
 755                                 VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,                                                               // VkImageLayout              newLayout;
 756                                 VK_QUEUE_FAMILY_IGNORED,                                                                                                // uint32_t                   srcQueueFamilyIndex;
 757                                 VK_QUEUE_FAMILY_IGNORED,                                                                                                // uint32_t                   dstQueueFamilyIndex;
 758                                 *m_colorImage,                                                                                                                  // VkImage                    image;
 759                                 { VK_IMAGE_ASPECT_COLOR_BIT, 0u, 1u, 0u, 1u }                                                   // VkImageSubresourceRange    subresourceRange;
 760                         },
 761                         // depth image layout transition
 762                         {
 763                                 VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,                                                                 // VkStructureType            sType;
 764                                 DE_NULL,                                                                                                                                // const void*                pNext;
 765                                 (VkAccessFlags)0,                                                                                                               // VkAccessFlags              srcAccessMask;
 766                                 VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT,                                                   // VkAccessFlags              dstAccessMask;
 767                                 VK_IMAGE_LAYOUT_UNDEFINED,                                                                                              // VkImageLayout              oldLayout;
 768                                 VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,                                               // VkImageLayout              newLayout;
 769                                 VK_QUEUE_FAMILY_IGNORED,                                                                                                // uint32_t                   srcQueueFamilyIndex;
 770                                 VK_QUEUE_FAMILY_IGNORED,                                                                                                // uint32_t                   dstQueueFamilyIndex;
 771                                 *m_depthImage,                                                                                                                  // VkImage                    image;
 772                                 m_depthImageSubresourceRange,                                                                                   // VkImageSubresourceRange    subresourceRange;
 773                         },
 774                 };
 775
 776                 m_cmdBuffer = allocateCommandBuffer(vk, vkDevice, &cmdBufferAllocateInfo);
 777
 778                 VK_CHECK(vk.beginCommandBuffer(*m_cmdBuffer, &cmdBufferBeginInfo));
 779
 780                 vk.cmdPipelineBarrier(*m_cmdBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, (VkDependencyFlags)0,
 781                         0u, DE_NULL, 0u, DE_NULL, DE_LENGTH_OF_ARRAY(imageLayoutBarriers), imageLayoutBarriers);
 782
 783                 vk.cmdBeginRenderPass(*m_cmdBuffer, &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
 784
 785                 const VkDeviceSize              quadOffset              = (m_vertices.size() / DepthTest::QUAD_COUNT) * sizeof(Vertex4RGBA);
 786
 787                 for (int quadNdx = 0; quadNdx < DepthTest::QUAD_COUNT; quadNdx++)
 788                 {
 789                         VkDeviceSize vertexBufferOffset = quadOffset * quadNdx;
 790
 791                         vk.cmdBindPipeline(*m_cmdBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, *m_graphicsPipelines[quadNdx]);
 792                         vk.cmdBindVertexBuffers(*m_cmdBuffer, 0, 1, &m_vertexBuffer.get(), &vertexBufferOffset);
 793                         vk.cmdDraw(*m_cmdBuffer, (deUint32)(m_vertices.size() / DepthTest::QUAD_COUNT), 1, 0, 0);
 794                 }
 795
 796                 vk.cmdEndRenderPass(*m_cmdBuffer);
 797                 VK_CHECK(vk.endCommandBuffer(*m_cmdBuffer));
 798         }
 799
 800         // Create fence
 801         {
 802                 const VkFenceCreateInfo fenceParams =
 803                 {
 804                         VK_STRUCTURE_TYPE_FENCE_CREATE_INFO,    // VkStructureType              sType;
 805                         DE_NULL,                                                                // const void*                  pNext;
 806                         0u                                                                              // VkFenceCreateFlags   flags;
 807                 };
 808
 809                 m_fence = createFence(vk, vkDevice, &fenceParams);
 810         }
 811 }
 812
 813 DepthTestInstance::~DepthTestInstance (void)
 814 {
 815 }
 816
 817 tcu::TestStatus DepthTestInstance::iterate (void)
 818 {
 819         const DeviceInterface&          vk                      = m_context.getDeviceInterface();
 820         const VkDevice                          vkDevice        = m_context.getDevice();
 821         const VkQueue                           queue           = m_context.getUniversalQueue();
 822         const VkSubmitInfo                      submitInfo      =
 823         {
 824                 VK_STRUCTURE_TYPE_SUBMIT_INFO,  // VkStructureType                      sType;
 825                 DE_NULL,                                                // const void*                          pNext;
 826                 0u,                                                             // deUint32                                     waitSemaphoreCount;
 827                 DE_NULL,                                                // const VkSemaphore*           pWaitSemaphores;
 828                 (const VkPipelineStageFlags*)DE_NULL,
 829                 1u,                                                             // deUint32                                     commandBufferCount;
 830                 &m_cmdBuffer.get(),                             // const VkCommandBuffer*       pCommandBuffers;
 831                 0u,                                                             // deUint32                                     signalSemaphoreCount;
 832                 DE_NULL                                                 // const VkSemaphore*           pSignalSemaphores;
 833         };
 834
 835         VK_CHECK(vk.resetFences(vkDevice, 1, &m_fence.get()));
 836         VK_CHECK(vk.queueSubmit(queue, 1, &submitInfo, *m_fence));
 837         VK_CHECK(vk.waitForFences(vkDevice, 1, &m_fence.get(), true, ~(0ull) /* infinity*/));
 838
 839         return verifyImage();
 840 }
 841
 842 tcu::TestStatus DepthTestInstance::verifyImage (void)
 843 {
 844         const tcu::TextureFormat        tcuColorFormat  = mapVkFormat(m_colorFormat);
 845         const tcu::TextureFormat        tcuDepthFormat  = mapVkFormat(m_depthFormat);
 846         const ColorVertexShader         vertexShader;
 847         const ColorFragmentShader       fragmentShader  (tcuColorFormat, tcuDepthFormat);
 848         const rr::Program                       program                 (&vertexShader, &fragmentShader);
 849         ReferenceRenderer                       refRenderer             (m_renderSize.x(), m_renderSize.y(), 1, tcuColorFormat, tcuDepthFormat, &program);
 850         bool                                            compareOk               = false;
 851
 852         // Render reference image
 853         {
 854                 for (int quadNdx = 0; quadNdx < DepthTest::QUAD_COUNT; quadNdx++)
 855                 {
 856                         // Set depth state
 857                         rr::RenderState renderState(refRenderer.getViewportState());
 858                         renderState.fragOps.depthTestEnabled = true;
 859                         renderState.fragOps.depthFunc = mapVkCompareOp(m_depthCompareOps[quadNdx]);
 860
 861                         refRenderer.draw(renderState,
 862                                                          rr::PRIMITIVETYPE_TRIANGLES,
 863                                                          std::vector<Vertex4RGBA>(m_vertices.begin() + quadNdx * 6,
 864                                                                                                           m_vertices.begin() + (quadNdx + 1) * 6));
 865                 }
 866         }
 867
 868         // Compare result with reference image
 869         {
 870                 const DeviceInterface&                  vk                                      = m_context.getDeviceInterface();
 871                 const VkDevice                                  vkDevice                        = m_context.getDevice();
 872                 const VkQueue                                   queue                           = m_context.getUniversalQueue();
 873                 const deUint32                                  queueFamilyIndex        = m_context.getUniversalQueueFamilyIndex();
 874                 SimpleAllocator                                 allocator                       (vk, vkDevice, getPhysicalDeviceMemoryProperties(m_context.getInstanceInterface(), m_context.getPhysicalDevice()));
 875                 de::MovePtr<tcu::TextureLevel>  result                          = readColorAttachment(vk, vkDevice, queue, queueFamilyIndex, allocator, *m_colorImage, m_colorFormat, m_renderSize);
 876
 877                 compareOk = tcu::intThresholdPositionDeviationCompare(m_context.getTestContext().getLog(),
 878                                                                                                                           "IntImageCompare",
 879                                                                                                                           "Image comparison",
 880                                                                                                                           refRenderer.getAccess(),
 881                                                                                                                           result->getAccess(),
 882                                                                                                                           tcu::UVec4(2, 2, 2, 2),
 883                                                                                                                           tcu::IVec3(1, 1, 0),
 884                                                                                                                           true,
 885                                                                                                                           tcu::COMPARE_LOG_RESULT);
 886         }
 887
 888         if (compareOk)
 889                 return tcu::TestStatus::pass("Result image matches reference");
 890         else
 891                 return tcu::TestStatus::fail("Image mismatch");
 892 }
 893
 894 std::string getFormatCaseName (const VkFormat format)
 895 {
 896         const std::string       fullName        = getFormatName(format);
 897
 898         DE_ASSERT(de::beginsWith(fullName, "VK_FORMAT_"));
 899
 900         return de::toLower(fullName.substr(10));
 901 }
 902
 903 std::string     getCompareOpsName (const VkCompareOp quadDepthOps[DepthTest::QUAD_COUNT])
 904 {
 905         std::ostringstream name;
 906
 907         for (int quadNdx = 0; quadNdx < DepthTest::QUAD_COUNT; quadNdx++)
 908         {
 909                 const std::string       fullOpName      = getCompareOpName(quadDepthOps[quadNdx]);
 910
 911                 DE_ASSERT(de::beginsWith(fullOpName, "VK_COMPARE_OP_"));
 912
 913                 name << de::toLower(fullOpName.substr(14));
 914
 915                 if (quadNdx < DepthTest::QUAD_COUNT - 1)
 916                         name << "_";
 917         }
 918
 919         return name.str();
 920 }
 921
 922 std::string     getCompareOpsDescription (const VkCompareOp quadDepthOps[DepthTest::QUAD_COUNT])
 923 {
 924         std::ostringstream desc;
 925         desc << "Draws " << DepthTest::QUAD_COUNT << " quads with depth compare ops: ";
 926
 927         for (int quadNdx = 0; quadNdx < DepthTest::QUAD_COUNT; quadNdx++)
 928         {
 929                 desc << getCompareOpName(quadDepthOps[quadNdx]) << " at depth " << DepthTest::quadDepths[quadNdx];
 930
 931                 if (quadNdx < DepthTest::QUAD_COUNT - 1)
 932                         desc << ", ";
 933         }
 934         return desc.str();
 935 }
 936
 937
 938 } // anonymous
 939
 940 tcu::TestCaseGroup* createDepthTests (tcu::TestContext& testCtx)
 941 {
 942         const VkFormat depthFormats[] =
 943         {
 944                 VK_FORMAT_D16_UNORM,
 945                 VK_FORMAT_X8_D24_UNORM_PACK32,
 946                 VK_FORMAT_D32_SFLOAT,
 947                 VK_FORMAT_D16_UNORM_S8_UINT,
 948                 VK_FORMAT_D24_UNORM_S8_UINT,
 949                 VK_FORMAT_D32_SFLOAT_S8_UINT
 950         };
 951
 952         // Each entry configures the depth compare operators of QUAD_COUNT quads.
 953         // All entries cover pair-wise combinations of compare operators.
 954         const VkCompareOp depthOps[][DepthTest::QUAD_COUNT] =
 955         {
 956                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_NOT_EQUAL },
 957                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_GREATER },
 958                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_LESS_OR_EQUAL },
 959                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_GREATER_OR_EQUAL },
 960                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_ALWAYS },
 961                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_LESS },
 962                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_NEVER },
 963                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_EQUAL },
 964                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_LESS },
 965                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_NOT_EQUAL },
 966                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_GREATER },
 967                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_LESS_OR_EQUAL },
 968                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_EQUAL },
 969                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_ALWAYS },
 970                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_GREATER_OR_EQUAL },
 971                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_LESS },
 972                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_ALWAYS },
 973                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_GREATER },
 974                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_NOT_EQUAL },
 975                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_GREATER_OR_EQUAL },
 976                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_NEVER },
 977                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_GREATER },
 978                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_LESS_OR_EQUAL },
 979                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_NOT_EQUAL },
 980                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_GREATER_OR_EQUAL },
 981                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_LESS_OR_EQUAL },
 982                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_LESS },
 983                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_EQUAL },
 984                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_NEVER },
 985                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_LESS_OR_EQUAL },
 986                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_EQUAL },
 987                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_LESS },
 988                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_ALWAYS },
 989                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_GREATER_OR_EQUAL },
 990                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_NEVER },
 991                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_GREATER_OR_EQUAL },
 992                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_LESS_OR_EQUAL },
 993                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_NEVER },
 994                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_EQUAL },
 995                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_NOT_EQUAL },
 996                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_ALWAYS },
 997                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_ALWAYS },
 998                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_LESS },
 999                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_EQUAL },
1000                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_GREATER },
1001                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_NOT_EQUAL },
1002                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_LESS_OR_EQUAL },
1003                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_GREATER_OR_EQUAL },
1004                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_NEVER },
1005                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_LESS },
1006                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_ALWAYS },
1007                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_GREATER },
1008                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_EQUAL },
1009                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_NOT_EQUAL },
1010                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_LESS },
1011                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_NEVER },
1012                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_NOT_EQUAL },
1013                 { VK_COMPARE_OP_GREATER,                        VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_EQUAL },
1014                 { VK_COMPARE_OP_EQUAL,                          VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_LESS_OR_EQUAL },
1015                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_GREATER },
1016                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_NEVER },
1017                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_GREATER },
1018                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_NOT_EQUAL },
1019                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_ALWAYS },
1020                 { VK_COMPARE_OP_LESS_OR_EQUAL,          VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_GREATER },
1021                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_LESS,                             VK_COMPARE_OP_GREATER },
1022                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_GREATER_OR_EQUAL },
1023                 { VK_COMPARE_OP_ALWAYS,                         VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_LESS_OR_EQUAL },
1024                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_GREATER_OR_EQUAL, VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_LESS },
1025                 { VK_COMPARE_OP_GREATER_OR_EQUAL,       VK_COMPARE_OP_NEVER,                    VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_NEVER },
1026                 { VK_COMPARE_OP_LESS,                           VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_EQUAL,                    VK_COMPARE_OP_EQUAL },
1027                 { VK_COMPARE_OP_NEVER,                          VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_ALWAYS,                   VK_COMPARE_OP_GREATER_OR_EQUAL },
1028                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_GREATER,                  VK_COMPARE_OP_ALWAYS },
1029                 { VK_COMPARE_OP_NOT_EQUAL,                      VK_COMPARE_OP_LESS_OR_EQUAL,    VK_COMPARE_OP_NOT_EQUAL,                VK_COMPARE_OP_GREATER }
1030         };
1031
1032         de::MovePtr<tcu::TestCaseGroup> depthTests (new tcu::TestCaseGroup(testCtx, "depth", "Depth tests"));
1033
1034         // Tests for format features
1035         {
1036                 de::MovePtr<tcu::TestCaseGroup> formatFeaturesTests (new tcu::TestCaseGroup(testCtx, "format_features", "Checks depth format features"));
1037
1038                 // Formats that must be supported in all implementations
1039                 addFunctionCase(formatFeaturesTests.get(),
1040                                                 "support_d16_unorm",
1041                                                 "Tests if VK_FORMAT_D16_UNORM is supported as depth/stencil attachment format",
1042                                                 testSupportsDepthStencilFormat,
1043                                                 VK_FORMAT_D16_UNORM);
1044
1045                 // Sets where at least one of the formats must be supported
1046                 const VkFormat  depthOnlyFormats[]              = { VK_FORMAT_X8_D24_UNORM_PACK32, VK_FORMAT_D32_SFLOAT };
1047                 const VkFormat  depthStencilFormats[]   = { VK_FORMAT_D24_UNORM_S8_UINT, VK_FORMAT_D32_SFLOAT_S8_UINT };
1048
1049                 addFunctionCase(formatFeaturesTests.get(),
1050                                                 "support_d24_unorm_or_d32_sfloat",
1051                                                 "Tests if any of VK_FORMAT_D24_UNORM_X8 or VK_FORMAT_D32_SFLOAT are supported as depth/stencil attachment format",
1052                                                 testSupportsAtLeastOneDepthStencilFormat,
1053                                                 std::vector<VkFormat>(depthOnlyFormats, depthOnlyFormats + DE_LENGTH_OF_ARRAY(depthOnlyFormats)));
1054
1055                 addFunctionCase(formatFeaturesTests.get(),
1056                                                 "support_d24_unorm_s8_uint_or_d32_sfloat_s8_uint",
1057                                                 "Tests if any of VK_FORMAT_D24_UNORM_S8_UINT or VK_FORMAT_D32_SFLOAT_S8_UINT are supported as depth/stencil attachment format",
1058                                                 testSupportsAtLeastOneDepthStencilFormat,
1059                                                 std::vector<VkFormat>(depthStencilFormats, depthStencilFormats + DE_LENGTH_OF_ARRAY(depthStencilFormats)));
1060
1061                 depthTests->addChild(formatFeaturesTests.release());
1062         }
1063
1064         // Tests for format and compare operators
1065         {
1066                 de::MovePtr<tcu::TestCaseGroup> formatTests (new tcu::TestCaseGroup(testCtx, "format", "Uses different depth formats"));
1067
1068                 for (size_t formatNdx = 0; formatNdx < DE_LENGTH_OF_ARRAY(depthFormats); formatNdx++)
1069                 {
1070                         de::MovePtr<tcu::TestCaseGroup> formatTest              (new tcu::TestCaseGroup(testCtx,
1071                                                                                                                                                                         getFormatCaseName(depthFormats[formatNdx]).c_str(),
1072                                                                                                                                                                         (std::string("Uses format ") + getFormatName(depthFormats[formatNdx])).c_str()));
1073                         de::MovePtr<tcu::TestCaseGroup> compareOpsTests (new tcu::TestCaseGroup(testCtx, "compare_ops", "Combines depth compare operators"));
1074
1075                         for (size_t opsNdx = 0; opsNdx < DE_LENGTH_OF_ARRAY(depthOps); opsNdx++)
1076                         {
1077                                 compareOpsTests->addChild(new DepthTest(testCtx,
1078                                                                                                                 getCompareOpsName(depthOps[opsNdx]),
1079                                                                                                                 getCompareOpsDescription(depthOps[opsNdx]),
1080                                                                                                                 depthFormats[formatNdx],
1081                                                                                                                 depthOps[opsNdx]));
1082                         }
1083                         formatTest->addChild(compareOpsTests.release());
1084                         formatTests->addChild(formatTest.release());
1085                 }
1086                 depthTests->addChild(formatTests.release());
1087         }
1088
1089         return depthTests.release();
1090 }
1091
1092 } // pipeline
1093 } // vkt