/*-------------------------------------------------------------------------
 * Vulkan CTS Framework
 * --------------------
 *
 * Copyright (c) 2021 The Khronos Group Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *-------------------------------------------------------------------------*/

#include "vksCacheBuilder.hpp"
#include "pcreader.hpp"
#include "vksJson.hpp"

#include <fstream>
//	Currently CTS does not use C++17, so universal method of deleting files from directory has been commented out
//#include <filesystem>
#include "vkRefUtil.hpp"
#include "vkQueryUtil.hpp"
#include "deDirectoryIterator.hpp"
#include "deFile.h"
#include "vkSafetyCriticalUtil.hpp"

namespace vk
{

typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateSamplerYcbcrConversionFunc)	(VkDevice device, const VkSamplerYcbcrConversionCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkSamplerYcbcrConversion* pYcbcrConversion);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroySamplerYcbcrConversionFunc)	(VkDevice device, VkSamplerYcbcrConversion ycbcrConversion, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateSamplerFunc)					(VkDevice device, const VkSamplerCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkSampler* pSampler);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroySamplerFunc)				(VkDevice device, VkSampler sampler, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateShaderModuleFunc)			(VkDevice device, const VkShaderModuleCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkShaderModule* pShaderModule);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroyShaderModuleFunc)			(VkDevice device, VkShaderModule shaderModule, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateRenderPassFunc)				(VkDevice device, const VkRenderPassCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkRenderPass* pRenderPass);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateRenderPass2Func)				(VkDevice device, const VkRenderPassCreateInfo2* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkRenderPass* pRenderPass);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroyRenderPassFunc)				(VkDevice device, VkRenderPass renderPass, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateDescriptorSetLayoutFunc)		(VkDevice device, const VkDescriptorSetLayoutCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkDescriptorSetLayout* pSetLayout);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroyDescriptorSetLayoutFunc)	(VkDevice device, VkDescriptorSetLayout descriptorSetLayout, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreatePipelineLayoutFunc)			(VkDevice device, const VkPipelineLayoutCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkPipelineLayout* pPipelineLayout);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroyPipelineLayoutFunc)			(VkDevice device, VkPipelineLayout pipelineLayout, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateGraphicsPipelinesFunc)		(VkDevice device, VkPipelineCache pipelineCache, deUint32 createInfoCount, const VkGraphicsPipelineCreateInfo* pCreateInfos, const VkAllocationCallbacks* pAllocator, VkPipeline* pPipelines);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreateComputePipelinesFunc)		(VkDevice device, VkPipelineCache pipelineCache, deUint32 createInfoCount, const VkComputePipelineCreateInfo* pCreateInfos, const VkAllocationCallbacks* pAllocator, VkPipeline* pPipelines);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroyPipelineFunc)				(VkDevice device, VkPipeline pipeline, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* CreatePipelineCacheFunc)			(VkDevice device, const VkPipelineCacheCreateInfo* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkPipelineCache* pPipelineCache);
typedef VKAPI_ATTR void		(VKAPI_CALL* DestroyPipelineCacheFunc)			(VkDevice device, VkPipelineCache pipelineCache, const VkAllocationCallbacks* pAllocator);
typedef VKAPI_ATTR VkResult	(VKAPI_CALL* GetPipelineCacheDataFunc)			(VkDevice device, VkPipelineCache pipelineCache, deUintptr* pDataSize, void* pData);

}

namespace vksc_server
{


const VkDeviceSize VKSC_DEFAULT_PIPELINE_POOL_SIZE = 2u * 1024u * 1024u;

void exportFilesForExternalCompiler (const VulkanPipelineCacheInput&	input,
									 const std::string&					path,
									 const std::string&					filePrefix)
{
	// unpack JSON data to track relations between objects
	using namespace	vk;
	using namespace	json;
	Context			jsonReader;

	std::map<VkSamplerYcbcrConversion, VkSamplerYcbcrConversionCreateInfo>	allSamplerYcbcrConversions;
	for (auto&& samplerYcbcr : input.samplerYcbcrConversions)
	{
		VkSamplerYcbcrConversionCreateInfo sycCI{};
		readJSON_VkSamplerYcbcrConversionCreateInfo(jsonReader, samplerYcbcr.second, sycCI);
		allSamplerYcbcrConversions.insert({ samplerYcbcr.first, sycCI });
	}

	std::map<VkSampler, VkSamplerCreateInfo>			allSamplers;
	for (auto&& sampler : input.samplers)
	{
		VkSamplerCreateInfo sCI{};
		readJSON_VkSamplerCreateInfo(jsonReader, sampler.second, sCI);
		allSamplers.insert({ sampler.first, sCI });
	}

	std::map<VkShaderModule, VkShaderModuleCreateInfo>	allShaderModules;
	std::map<VkShaderModule, std::vector<deUint8>>		allSpirvShaders;
	for (auto&& shader : input.shaderModules)
	{
		VkShaderModuleCreateInfo	smCI{};
		std::vector<deUint8>		spirvShader;
		readJSON_VkShaderModuleCreateInfo(jsonReader, shader.second, smCI, spirvShader);
		allShaderModules.insert({ shader.first, smCI });
		allSpirvShaders.insert({ shader.first, spirvShader });
	}

	std::map<VkRenderPass, VkRenderPassCreateInfo>	allRenderPasses;
	std::map<VkRenderPass, VkRenderPassCreateInfo2> allRenderPasses2;
	for (auto&& renderPass : input.renderPasses)
	{
		if (renderPass.second.find("VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO_2") != std::string::npos)
		{
			VkRenderPassCreateInfo2	rpCI{};
			readJSON_VkRenderPassCreateInfo2(jsonReader, renderPass.second, rpCI);
			allRenderPasses2.insert({ renderPass.first, rpCI});
		}
		else if (renderPass.second.find("VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO") != std::string::npos)
		{
			VkRenderPassCreateInfo	rpCI{};
			readJSON_VkRenderPassCreateInfo(jsonReader, renderPass.second, rpCI);
			allRenderPasses.insert({ renderPass.first, rpCI});
		}
		else
			TCU_THROW(InternalError, "Could not recognize render pass type");
	}

	std::map<VkDescriptorSetLayout, VkDescriptorSetLayoutCreateInfo> allDescriptorSetLayouts;
	for (auto&& descriptorSetLayout : input.descriptorSetLayouts)
	{
		VkDescriptorSetLayoutCreateInfo	dsCI{};
		readJSON_VkDescriptorSetLayoutCreateInfo(jsonReader, descriptorSetLayout.second, dsCI);
		allDescriptorSetLayouts.insert({ descriptorSetLayout.first, dsCI });
	}

	std::map<VkPipelineLayout, VkPipelineLayoutCreateInfo> allPipelineLayouts;
	for (auto&& pipelineLayout : input.pipelineLayouts)
	{
		VkPipelineLayoutCreateInfo	plCI{};
		readJSON_VkPipelineLayoutCreateInfo(jsonReader, pipelineLayout.second, plCI);
		allPipelineLayouts.insert({ pipelineLayout.first, plCI });
	}

	deUint32 exportedPipelines = 0;

	for (auto&& pipeline : input.pipelines)
	{
		// filter objects used for this specific pipeline ( graphics or compute )
		std::map<VkSamplerYcbcrConversion, VkSamplerYcbcrConversionCreateInfo>	samplerYcbcrConversions;
		std::map<VkSampler, VkSamplerCreateInfo>								samplers;
		std::map<VkShaderModule, VkShaderModuleCreateInfo>						shaderModules;
		std::map<VkShaderModule, std::vector<deUint8>>							spirvShaders;
		std::map<VkRenderPass, VkRenderPassCreateInfo>							renderPasses;
		std::map<VkRenderPass, VkRenderPassCreateInfo2>							renderPasses2;
		std::map<VkDescriptorSetLayout, VkDescriptorSetLayoutCreateInfo>		descriptorSetLayouts;
		std::map<VkPipelineLayout, VkPipelineLayoutCreateInfo>					pipelineLayouts;

		if (pipeline.pipelineContents.find("VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO") != std::string::npos)
		{
			VkGraphicsPipelineCreateInfo	gpCI{};
			readJSON_VkGraphicsPipelineCreateInfo(jsonReader, pipeline.pipelineContents, gpCI);

			// copy all used shaders
			for (deUint32 i = 0; i < gpCI.stageCount; ++i)
			{
				auto it = allShaderModules.find(gpCI.pStages[i].module);
				if(it == end(allShaderModules))
					TCU_THROW(InternalError, "Could not find shader module");
				shaderModules.insert(*it);

				auto it2 = allSpirvShaders.find(gpCI.pStages[i].module);
				if (it2 == end(allSpirvShaders))
					TCU_THROW(InternalError, "Could not find shader");
				spirvShaders.insert(*it2);
			}

			// copy render pass
			{
				auto it = allRenderPasses.find(gpCI.renderPass);
				if (it == end(allRenderPasses))
				{
					auto it2 = allRenderPasses2.find(gpCI.renderPass);
					if (it2 == end(allRenderPasses2))
						TCU_THROW(InternalError, "Could not find render pass");
					else
						renderPasses2.insert(*it2);
				}
				else
					renderPasses.insert(*it);
			}

			// copy pipeline layout
			{
				auto it = allPipelineLayouts.find(gpCI.layout);
				if (it == end(allPipelineLayouts))
					TCU_THROW(InternalError, "Could not find pipeline layout");
				pipelineLayouts.insert(*it);

				// copy descriptor set layouts
				for (deUint32 i = 0; i < it->second.setLayoutCount; ++i)
				{
					auto it2 = allDescriptorSetLayouts.find(it->second.pSetLayouts[i]);
					if (it2 == end(allDescriptorSetLayouts))
						TCU_THROW(InternalError, "Could not find descriptor set layout");
					descriptorSetLayouts.insert({ it2->first, it2->second });

					// copy samplers
					for (deUint32 j = 0; j < it2->second.bindingCount; ++j)
					{
						if (it2->second.pBindings[j].pImmutableSamplers != DE_NULL)
						{
							for (deUint32 k = 0; k < it2->second.pBindings[j].descriptorCount; ++k)
							{
								auto it3 = allSamplers.find(it2->second.pBindings[j].pImmutableSamplers[k]);
								if (it3 == end(allSamplers))
									TCU_THROW(InternalError, "Could not find sampler");
								samplers.insert({ it3->first, it3->second });

								// copy sampler YcbcrConversion
								if (it3->second.pNext != DE_NULL)
								{
									VkSamplerYcbcrConversionInfo* info = (VkSamplerYcbcrConversionInfo*)findStructureInChain(it3->second.pNext, VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO);
									if (info->sType == VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO)
									{
										auto it4 = allSamplerYcbcrConversions.find(info->conversion);
										if (it4 == end(allSamplerYcbcrConversions))
											TCU_THROW(InternalError, "Could not find VkSamplerYcbcrConversion");
										samplerYcbcrConversions.insert({ it4->first, it4->second });
									}
								}
							}
						}
					}
				}
			}

			vk::VkPhysicalDeviceFeatures2 deviceFeatures2;
			readJSON_VkPhysicalDeviceFeatures2(jsonReader, pipeline.deviceFeatures, deviceFeatures2);

			// export shaders and objects to JSON compatible with https://schema.khronos.org/vulkan/vkpcc.json
			std::string gpTxt = writeJSON_GraphicsPipeline_vkpccjson(filePrefix, exportedPipelines, pipeline.id, gpCI, deviceFeatures2, pipeline.deviceExtensions, samplerYcbcrConversions, samplers, descriptorSetLayouts, renderPasses, renderPasses2, pipelineLayouts);
			std::stringstream fileName;
#ifdef _WIN32
			fileName << path << "\\" << filePrefix << "graphics_pipeline_" << exportedPipelines << ".json";
#else
			fileName << path << "/" << filePrefix << "graphics_pipeline_" << exportedPipelines << ".json";
#endif
			{
				std::ofstream oFile(fileName.str().c_str(), std::ios::out);
				oFile << gpTxt;
			}

			for (deUint32 j = 0; j < gpCI.stageCount; ++j)
			{
				std::stringstream shaderName;
#ifdef _WIN32
				shaderName << path << "\\" << filePrefix << "shader_" << exportedPipelines << "_" << gpCI.pStages[j].module.getInternal() << ".";
#else
				shaderName << path << "/" << filePrefix << "shader_" << exportedPipelines << "_" << gpCI.pStages[j].module.getInternal() << ".";
#endif
				switch (gpCI.pStages[j].stage)
				{
				case VK_SHADER_STAGE_VERTEX_BIT:					shaderName << "vert";	break;
				case VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT:		shaderName << "tesc";	break;
				case VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT:	shaderName << "tese";	break;
				case VK_SHADER_STAGE_GEOMETRY_BIT:					shaderName << "geom";	break;
				case VK_SHADER_STAGE_FRAGMENT_BIT:					shaderName << "frag";	break;
				default:
					TCU_THROW(InternalError, "Unrecognized shader stage");
				}
				shaderName << ".spv";

				auto sit = spirvShaders.find(gpCI.pStages[j].module);
				if(sit==end(spirvShaders))
					TCU_THROW(InternalError, "SPIR-V shader not found");

				std::ofstream oFile(shaderName.str().c_str(), std::ios::out | std::ios::binary);
				oFile.write((const char *)sit->second.data(), sit->second.size());
			}

			exportedPipelines++;
		}
		else if (pipeline.pipelineContents.find("VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO") != std::string::npos)
		{
			VkComputePipelineCreateInfo	cpCI{};
			readJSON_VkComputePipelineCreateInfo(jsonReader, pipeline.pipelineContents, cpCI);

			// copy shader
			{
				auto it = allShaderModules.find(cpCI.stage.module);
				if(it == end(allShaderModules))
					TCU_THROW(InternalError, "Could not find shader module");
				shaderModules.insert(*it);

				auto it2 = allSpirvShaders.find(cpCI.stage.module);
				if (it2 == end(allSpirvShaders))
					TCU_THROW(InternalError, "Could not find shader");
				spirvShaders.insert(*it2);
			}

			// copy pipeline layout
			{
				auto it = allPipelineLayouts.find(cpCI.layout);
				if (it == end(allPipelineLayouts))
					TCU_THROW(InternalError, "Could not find pipeline layout");
				pipelineLayouts.insert(*it);

				// copy descriptor set layouts
				for (deUint32 i = 0; i < it->second.setLayoutCount; ++i)
				{
					auto it2 = allDescriptorSetLayouts.find(it->second.pSetLayouts[i]);
					if (it2 == end(allDescriptorSetLayouts))
						TCU_THROW(InternalError, "Could not find descriptor set layout");
					descriptorSetLayouts.insert({ it2->first, it2->second });

					// copy samplers
					for (deUint32 j = 0; j < it2->second.bindingCount; ++j)
					{
						if (it2->second.pBindings[j].pImmutableSamplers != DE_NULL)
						{
							for (deUint32 k = 0; k < it2->second.pBindings[j].descriptorCount; ++k)
							{
								auto it3 = allSamplers.find(it2->second.pBindings[j].pImmutableSamplers[k]);
								if (it3 == end(allSamplers))
									TCU_THROW(InternalError, "Could not find sampler");
								samplers.insert({ it3->first, it3->second });

								// copy sampler YcbcrConversion
								if (it3->second.pNext != DE_NULL)
								{
									VkSamplerYcbcrConversionInfo* info = (VkSamplerYcbcrConversionInfo*)(it3->second.pNext);
									if (info->sType == VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO)
									{
										auto it4 = allSamplerYcbcrConversions.find(info->conversion);
										if (it4 == end(allSamplerYcbcrConversions))
											TCU_THROW(InternalError, "Could not find VkSamplerYcbcrConversion");
										samplerYcbcrConversions.insert({ it4->first, it4->second });
									}
								}
							}
						}
					}
				}
			}
			vk::VkPhysicalDeviceFeatures2 deviceFeatures2;
			readJSON_VkPhysicalDeviceFeatures2(jsonReader, pipeline.deviceFeatures, deviceFeatures2);

			// export shaders and objects to JSON compatible with https://schema.khronos.org/vulkan/vkpcc.json
			std::string cpTxt = writeJSON_ComputePipeline_vkpccjson(filePrefix, exportedPipelines, pipeline.id, cpCI, deviceFeatures2, pipeline.deviceExtensions, samplerYcbcrConversions, samplers, descriptorSetLayouts, pipelineLayouts);
			std::stringstream fileName;
#ifdef _WIN32
			fileName << path << "\\" << filePrefix << "compute_pipeline_" << exportedPipelines << ".json";
#else
			fileName << path << "/" << filePrefix << "compute_pipeline_" << exportedPipelines << ".json";
#endif
			{
				std::ofstream oFile(fileName.str().c_str(), std::ios::out);
				oFile << cpTxt;
			}

			{
				std::stringstream shaderName;
#ifdef _WIN32
				shaderName << path << "\\" << filePrefix << "shader_" << exportedPipelines << "_" << cpCI.stage.module.getInternal() << ".";
#else
				shaderName << path << "/" << filePrefix << "shader_" << exportedPipelines << "_" << cpCI.stage.module.getInternal() << ".";
#endif
				switch (cpCI.stage.stage)
				{
				case VK_SHADER_STAGE_COMPUTE_BIT:					shaderName << "comp";	break;
				default:
					TCU_THROW(InternalError, "Unrecognized shader stage");
				}
				shaderName << ".spv";

				auto sit = spirvShaders.find(cpCI.stage.module);
				if(sit==end(spirvShaders))
					TCU_THROW(InternalError, "SPIR-V shader not found");

				std::ofstream oFile(shaderName.str().c_str(), std::ios::out | std::ios::binary);
				oFile.write((const char *)sit->second.data(), sit->second.size());
			}

			exportedPipelines++;
		}
	}
}

// This is function prototype for creating pipeline cache using offline pipeline compiler

vector<u8>	buildOfflinePipelineCache (const VulkanPipelineCacheInput&		input,
									   const std::string&					pipelineCompilerPath,
									   const std::string&					pipelineCompilerDataDir,
									   const std::string&					pipelineCompilerArgs,
									   const std::string&					pipelineCompilerOutputFile,
									   const std::string&					pipelineCompilerLogFile,
									   const std::string&					pipelineCompilerFilePrefix)
{
	if (!deFileExists(pipelineCompilerPath.c_str()))
		TCU_THROW(InternalError, std::string("Can't find pipeline compiler") + pipelineCompilerPath);
	// Remove all files from output directory
	for (de::DirectoryIterator iter(pipelineCompilerDataDir); iter.hasItem(); iter.next())
	{
		const de::FilePath filePath = iter.getItem();
		if (filePath.getType() != de::FilePath::TYPE_FILE)
			continue;
		if (!pipelineCompilerFilePrefix.empty() && filePath.getBaseName().find(pipelineCompilerFilePrefix) != 0)
			continue;
		deDeleteFile(filePath.getPath());
	}

	// export new files
	exportFilesForExternalCompiler(input, pipelineCompilerDataDir, pipelineCompilerFilePrefix);
	if (input.pipelines.size() == 0)
		return vector<u8>();

	// run offline pipeline compiler
	{
		std::stringstream compilerCommand;
		compilerCommand << pipelineCompilerPath << " --path " << pipelineCompilerDataDir << " --out " << pipelineCompilerOutputFile;
		if (!pipelineCompilerLogFile.empty())
			compilerCommand << " --log " << pipelineCompilerLogFile;
		if (!pipelineCompilerFilePrefix.empty())
			compilerCommand << " --prefix " << pipelineCompilerFilePrefix;
		if (!pipelineCompilerArgs.empty())
			compilerCommand << " " << pipelineCompilerArgs;

		std::string command = compilerCommand.str();
		int returnValue = system(command.c_str());
		// offline pipeline compiler returns EXIT_SUCCESS on success
		if (returnValue != EXIT_SUCCESS) {
			TCU_THROW(InternalError, "offline pipeline compilation failed");
		}
	}

	// read created pipeline cache into result vector
	vector<u8> result;
	{
		std::ifstream	iFile		(pipelineCompilerOutputFile.c_str(), std::ios::in | std::ios::binary);
		if(!iFile)
			TCU_THROW(InternalError, (std::string("Cannot open file ") + pipelineCompilerOutputFile).c_str());

		auto			fileBegin	= iFile.tellg();
		iFile.seekg(0, std::ios::end);
		auto			fileEnd		= iFile.tellg();
		iFile.seekg(0, std::ios::beg);
		std::size_t		fileSize	= static_cast<std::size_t>(fileEnd - fileBegin);
		if(fileSize > 0)
		{
			result.resize(fileSize);
			iFile.read(reinterpret_cast<char*>(result.data()), fileSize);
			if(iFile.fail())
				TCU_THROW(InternalError, (std::string("Cannot load file ") + pipelineCompilerOutputFile).c_str());
		}
	}
	return result;
}

vector<u8>	buildPipelineCache (const VulkanPipelineCacheInput&		input,
								const vk::PlatformInterface&		vkp,
								vk::VkInstance						instance,
								const vk::InstanceInterface&		vki,
								vk::VkPhysicalDevice				physicalDevice,
								deUint32							queueIndex)
{
	using namespace vk;
	using namespace json;

	Context jsonReader;

	// sort pipelines by device features and extensions
	std::vector<VulkanJsonPipelineDescription> pipelines = input.pipelines;
	std::sort(begin(pipelines), end(pipelines), [](const VulkanJsonPipelineDescription& lhs, const VulkanJsonPipelineDescription& rhs) { if (lhs.deviceExtensions != rhs.deviceExtensions) return lhs.deviceExtensions < rhs.deviceExtensions; return lhs.deviceFeatures < rhs.deviceFeatures;  });

	std::string							deviceFeatures			= "<empty>";
	std::vector<std::string>			deviceExtensions		= { "<empty>" };

	Move<VkDevice>						pcDevice;
	VkPipelineCache						pipelineCache;
	vector<u8>							resultCacheData;

	GetDeviceProcAddrFunc				getDeviceProcAddrFunc				= DE_NULL;
	CreateSamplerYcbcrConversionFunc	createSamplerYcbcrConversionFunc	= DE_NULL;
	DestroySamplerYcbcrConversionFunc	destroySamplerYcbcrConversionFunc	= DE_NULL;
	CreateSamplerFunc					createSamplerFunc					= DE_NULL;
	DestroySamplerFunc					destroySamplerFunc					= DE_NULL;
	CreateShaderModuleFunc				createShaderModuleFunc				= DE_NULL;
	DestroyShaderModuleFunc				destroyShaderModuleFunc				= DE_NULL;
	CreateRenderPassFunc				createRenderPassFunc				= DE_NULL;
	CreateRenderPass2Func				createRenderPass2Func				= DE_NULL;
	DestroyRenderPassFunc				destroyRenderPassFunc				= DE_NULL;
	CreateDescriptorSetLayoutFunc		createDescriptorSetLayoutFunc		= DE_NULL;
	DestroyDescriptorSetLayoutFunc		destroyDescriptorSetLayoutFunc		= DE_NULL;
	CreatePipelineLayoutFunc			createPipelineLayoutFunc			= DE_NULL;
	DestroyPipelineLayoutFunc			destroyPipelineLayoutFunc			= DE_NULL;
	CreateGraphicsPipelinesFunc			createGraphicsPipelinesFunc			= DE_NULL;
	CreateComputePipelinesFunc			createComputePipelinesFunc			= DE_NULL;
	CreatePipelineCacheFunc				createPipelineCacheFunc				= DE_NULL;
	DestroyPipelineCacheFunc			destroyPipelineCacheFunc			= DE_NULL;
	DestroyPipelineFunc					destroyPipelineFunc					= DE_NULL;
	GetPipelineCacheDataFunc			getPipelineCacheDataFunc			= DE_NULL;

	std::map<VkSamplerYcbcrConversion, VkSamplerYcbcrConversion>	falseToRealSamplerYcbcrConversions;
	std::map<VkSampler, VkSampler>									falseToRealSamplers;
	std::map<VkShaderModule, VkShaderModule>						falseToRealShaderModules;
	std::map<VkRenderPass, VkRenderPass>							falseToRealRenderPasses;
	std::map<VkDescriptorSetLayout, VkDescriptorSetLayout>			falseToRealDescriptorSetLayouts;
	std::map<VkPipelineLayout, VkPipelineLayout>					falseToRealPipelineLayouts;

	// decode VkGraphicsPipelineCreateInfo and VkComputePipelineCreateInfo structs and create VkPipelines with a given pipeline cache
	for (auto&& pipeline : pipelines)
	{
		// check if we need to create new device
		if (pcDevice.get() == DE_NULL || deviceFeatures != pipeline.deviceFeatures || deviceExtensions != pipeline.deviceExtensions)
		{
			// remove old device
			if (pcDevice.get() != DE_NULL)
			{
				// collect cache data
				std::size_t cacheSize;
				VK_CHECK(getPipelineCacheDataFunc(*pcDevice, pipelineCache, &cacheSize, DE_NULL));
				resultCacheData.resize(cacheSize);
				VK_CHECK(getPipelineCacheDataFunc(*pcDevice, pipelineCache, &cacheSize, resultCacheData.data()));

				// clean up resources - in ResourceInterfaceStandard we just simulate Vulkan SC driver after all...
				for (auto&& it : falseToRealPipelineLayouts)			destroyPipelineLayoutFunc(*pcDevice, it.second, DE_NULL);
				for (auto&& it : falseToRealDescriptorSetLayouts)		destroyDescriptorSetLayoutFunc(*pcDevice, it.second, DE_NULL);
				for (auto&& it : falseToRealRenderPasses)				destroyRenderPassFunc(*pcDevice, it.second, DE_NULL);
				for (auto&& it : falseToRealShaderModules)				destroyShaderModuleFunc(*pcDevice, it.second, DE_NULL);
				for (auto&& it : falseToRealSamplers)					destroySamplerFunc(*pcDevice, it.second, DE_NULL);
				for (auto&& it : falseToRealSamplerYcbcrConversions)	destroySamplerYcbcrConversionFunc(*pcDevice, it.second, DE_NULL);
				destroyPipelineCacheFunc(*pcDevice, pipelineCache, DE_NULL);

				// clear maps
				falseToRealSamplerYcbcrConversions.clear();
				falseToRealSamplers.clear();
				falseToRealShaderModules.clear();
				falseToRealRenderPasses.clear();
				falseToRealDescriptorSetLayouts.clear();
				falseToRealPipelineLayouts.clear();

				// remove device
				pcDevice = Move<VkDevice>();
			}

			// create new device with proper features and extensions
			const float								queuePriority			= 1.0f;
			const VkDeviceQueueCreateInfo			deviceQueueCreateInfo	=
			{
				VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO,
				DE_NULL,
				(VkDeviceQueueCreateFlags)0u,
				queueIndex,							//queueFamilyIndex;
				1,									//queueCount;
				&queuePriority,						//pQueuePriorities;
			};

			// recreate pNext chain. Add required Vulkan SC objects if they're missing
			void*									pNextChain				= readJSON_pNextChain(jsonReader, pipeline.deviceFeatures);
			VkPhysicalDeviceFeatures2*				chainedFeatures			= (VkPhysicalDeviceFeatures2*)findStructureInChain(pNextChain, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2);
			VkPhysicalDeviceFeatures2				localFeatures			= initVulkanStructure();
			VkDeviceObjectReservationCreateInfo*	chainedObjReservation	= (VkDeviceObjectReservationCreateInfo*)findStructureInChain(pNextChain, VK_STRUCTURE_TYPE_DEVICE_OBJECT_RESERVATION_CREATE_INFO);
			VkDeviceObjectReservationCreateInfo		localObjReservation		= resetDeviceObjectReservationCreateInfo();
			VkPhysicalDeviceVulkanSC10Features*		chainedSC10Features		= (VkPhysicalDeviceVulkanSC10Features*)findStructureInChain(pNextChain, VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_SC_1_0_FEATURES);
			VkPhysicalDeviceVulkanSC10Features		localSC10Features		= createDefaultSC10Features();

			void*									pNext					= pNextChain;
			if (chainedFeatures == DE_NULL)
			{
				chainedFeatures				= &localFeatures;
				localFeatures.pNext			= pNext;
				pNext						= &localFeatures;
			}
			if (chainedObjReservation == DE_NULL)
			{
				chainedObjReservation		= &localObjReservation;
				localObjReservation.pNext	= pNext;
				pNext						= &localObjReservation;
			}
			if (chainedSC10Features == DE_NULL)
			{
				chainedSC10Features			= &localSC10Features;
				localSC10Features.pNext		= pNext;
				pNext						= &localSC10Features;
			}

			deUint32								gPipelineCount			= 0U;
			deUint32								cPipelineCount			= 0U;
			for (auto&& pipeline2 : pipelines)
			{
				if (pipeline2.deviceFeatures != pipeline.deviceFeatures || pipeline2.deviceExtensions != pipeline.deviceExtensions)
					continue;
				if (pipeline2.pipelineContents.find("VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO") != std::string::npos)
					gPipelineCount++;
				else if (pipeline2.pipelineContents.find("VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO") != std::string::npos)
					cPipelineCount++;
			}

			// declare pipeline pool size
			VkPipelinePoolSize poolSize =
			{
				VK_STRUCTURE_TYPE_PIPELINE_POOL_SIZE,						// VkStructureType	sType;
				DE_NULL,													// const void*		pNext;
				VKSC_DEFAULT_PIPELINE_POOL_SIZE,							// VkDeviceSize		poolEntrySize;
				gPipelineCount + cPipelineCount								// deUint32			poolEntryCount;
			};
			chainedObjReservation->pipelinePoolSizeCount				= 1u;
			chainedObjReservation->pPipelinePoolSizes					= &poolSize;

			// declare pipeline cache
			VkPipelineCacheCreateInfo		pcCI =
			{
				VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO,				// VkStructureType				sType;
				DE_NULL,													// const void*					pNext;
				(VkPipelineCacheCreateFlags)0u,								// VkPipelineCacheCreateFlags	flags;
				resultCacheData.size(),										// size_t						initialDataSize;
				resultCacheData.empty() ? DE_NULL : resultCacheData.data()	// const void*					pInitialData;
			};
			chainedObjReservation->pipelineCacheCreateInfoCount			= 1u;
			chainedObjReservation->pPipelineCacheCreateInfos			= &pcCI;

			chainedObjReservation->pipelineLayoutRequestCount			= de::max(chainedObjReservation->pipelineLayoutRequestCount,			deUint32(input.pipelineLayouts.size()));
			chainedObjReservation->renderPassRequestCount				= de::max(chainedObjReservation->renderPassRequestCount,				deUint32(input.renderPasses.size()));
			chainedObjReservation->graphicsPipelineRequestCount			= de::max(chainedObjReservation->graphicsPipelineRequestCount,			gPipelineCount);
			chainedObjReservation->computePipelineRequestCount			= de::max(chainedObjReservation->computePipelineRequestCount,			cPipelineCount);
			chainedObjReservation->descriptorSetLayoutRequestCount		= de::max(chainedObjReservation->descriptorSetLayoutRequestCount,		deUint32(input.descriptorSetLayouts.size()));
			chainedObjReservation->samplerRequestCount					= de::max(chainedObjReservation->samplerRequestCount,					deUint32(input.samplers.size()));
			chainedObjReservation->samplerYcbcrConversionRequestCount	= de::max(chainedObjReservation->samplerYcbcrConversionRequestCount,	deUint32(input.samplerYcbcrConversions.size()));
			chainedObjReservation->pipelineCacheRequestCount			= de::max(chainedObjReservation->pipelineCacheRequestCount,				1u);

			// decode all VkDescriptorSetLayoutCreateInfo
			std::map<VkDescriptorSetLayout, VkDescriptorSetLayoutCreateInfo>	descriptorSetLayoutCreateInfos;
			for (auto&& descriptorSetLayout : input.descriptorSetLayouts)
			{
				VkDescriptorSetLayoutCreateInfo	dsCI{};
				readJSON_VkDescriptorSetLayoutCreateInfo(jsonReader, descriptorSetLayout.second, dsCI);
				descriptorSetLayoutCreateInfos.insert({ descriptorSetLayout.first, dsCI });
			}

			chainedObjReservation->descriptorSetLayoutBindingLimit = 1u;
			for (auto&& dsCI : descriptorSetLayoutCreateInfos)
				for (deUint32 i = 0; i < dsCI.second.bindingCount; ++i)
					chainedObjReservation->descriptorSetLayoutBindingLimit = de::max(chainedObjReservation->descriptorSetLayoutBindingLimit, dsCI.second.pBindings[i].binding + 1u);

			// recreate device extensions
			vector<const char*>	deviceExts;
			for (auto&& ext : pipeline.deviceExtensions)
				deviceExts.push_back(ext.data());

			const VkDeviceCreateInfo		deviceCreateInfo			=
			{
				VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,						// sType
				pNext,														// pNext
				(VkDeviceCreateFlags)0u,									// flags
				1,															// queueRecordCount
				&deviceQueueCreateInfo,										// pRequestedQueues
				0,															// layerCount
				DE_NULL,													// ppEnabledLayerNames
				(deUint32)deviceExts.size(),								// extensionCount
				deviceExts.empty() ? DE_NULL : deviceExts.data(),			// ppEnabledExtensionNames
				&(chainedFeatures->features)								// pEnabledFeatures
			};

			// create new device
			pcDevice							= createDevice(vkp, instance, vki, physicalDevice, &deviceCreateInfo);
			deviceFeatures						= pipeline.deviceFeatures;
			deviceExtensions					= pipeline.deviceExtensions;

			// create local function pointers required to perform pipeline cache creation
			getDeviceProcAddrFunc				= (GetDeviceProcAddrFunc)				vkp.getInstanceProcAddr	(instance, "vkGetDeviceProcAddr");
			createSamplerYcbcrConversionFunc	= (CreateSamplerYcbcrConversionFunc)	getDeviceProcAddrFunc	(*pcDevice, "vkCreateSamplerYcbcrConversion");
			destroySamplerYcbcrConversionFunc	= (DestroySamplerYcbcrConversionFunc)	getDeviceProcAddrFunc	(*pcDevice, "vkDestroySamplerYcbcrConversion");
			createSamplerFunc					= (CreateSamplerFunc)					getDeviceProcAddrFunc	(*pcDevice, "vkCreateSampler");
			destroySamplerFunc					= (DestroySamplerFunc)					getDeviceProcAddrFunc	(*pcDevice, "vkDestroySampler");
			createShaderModuleFunc				= (CreateShaderModuleFunc)				getDeviceProcAddrFunc	(*pcDevice, "vkCreateShaderModule");
			destroyShaderModuleFunc				= (DestroyShaderModuleFunc)				getDeviceProcAddrFunc	(*pcDevice, "vkDestroyShaderModule");
			createRenderPassFunc				= (CreateRenderPassFunc)				getDeviceProcAddrFunc	(*pcDevice, "vkCreateRenderPass");
			createRenderPass2Func				= (CreateRenderPass2Func)				getDeviceProcAddrFunc	(*pcDevice, "vkCreateRenderPass2");
			destroyRenderPassFunc				= (DestroyRenderPassFunc)				getDeviceProcAddrFunc	(*pcDevice, "vkDestroyRenderPass");
			createDescriptorSetLayoutFunc		= (CreateDescriptorSetLayoutFunc)		getDeviceProcAddrFunc	(*pcDevice, "vkCreateDescriptorSetLayout");
			destroyDescriptorSetLayoutFunc		= (DestroyDescriptorSetLayoutFunc)		getDeviceProcAddrFunc	(*pcDevice, "vkDestroyDescriptorSetLayout");
			createPipelineLayoutFunc			= (CreatePipelineLayoutFunc)			getDeviceProcAddrFunc	(*pcDevice, "vkCreatePipelineLayout");
			destroyPipelineLayoutFunc			= (DestroyPipelineLayoutFunc)			getDeviceProcAddrFunc	(*pcDevice, "vkDestroyPipelineLayout");
			createGraphicsPipelinesFunc			= (CreateGraphicsPipelinesFunc)			getDeviceProcAddrFunc	(*pcDevice, "vkCreateGraphicsPipelines");
			createComputePipelinesFunc			= (CreateComputePipelinesFunc)			getDeviceProcAddrFunc	(*pcDevice, "vkCreateComputePipelines");
			createPipelineCacheFunc				= (CreatePipelineCacheFunc)				getDeviceProcAddrFunc	(*pcDevice, "vkCreatePipelineCache");
			destroyPipelineCacheFunc			= (DestroyPipelineCacheFunc)			getDeviceProcAddrFunc	(*pcDevice, "vkDestroyPipelineCache");
			destroyPipelineFunc					= (DestroyPipelineFunc)					getDeviceProcAddrFunc	(*pcDevice, "vkDestroyPipeline");
			getPipelineCacheDataFunc			= (GetPipelineCacheDataFunc)			getDeviceProcAddrFunc	(*pcDevice, "vkGetPipelineCacheData");

			VK_CHECK(createPipelineCacheFunc(*pcDevice, &pcCI, DE_NULL, &pipelineCache));

			// decode VkSamplerYcbcrConversionCreateInfo structs and create VkSamplerYcbcrConversions
			for (auto&& samplerYcbcr : input.samplerYcbcrConversions)
			{
				VkSamplerYcbcrConversionCreateInfo sycCI{};
				readJSON_VkSamplerYcbcrConversionCreateInfo(jsonReader, samplerYcbcr.second, sycCI);
				VkSamplerYcbcrConversion realConversion;
				VK_CHECK(createSamplerYcbcrConversionFunc(*pcDevice, &sycCI, DE_NULL, &realConversion));
				falseToRealSamplerYcbcrConversions.insert({ samplerYcbcr.first, realConversion });
			}

			// decode VkSamplerCreateInfo structs and create VkSamplers
			for (auto&& sampler : input.samplers)
			{
				VkSamplerCreateInfo sCI{};
				readJSON_VkSamplerCreateInfo(jsonReader, sampler.second, sCI);

				// replace ycbcr conversions if required
				if (sCI.pNext != NULL)
				{
					if (sCI.pNext != DE_NULL)
					{
						VkSamplerYcbcrConversionInfo* info = (VkSamplerYcbcrConversionInfo*)(sCI.pNext);
						if (info->sType == VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO)
						{
							auto jt = falseToRealSamplerYcbcrConversions.find(info->conversion);
							if (jt == end(falseToRealSamplerYcbcrConversions))
								TCU_THROW(InternalError, "VkSamplerYcbcrConversion not found");
							info->conversion = jt->second;
						}
					}
				}

				VkSampler realSampler;
				VK_CHECK(createSamplerFunc(*pcDevice, &sCI, DE_NULL, &realSampler));
				falseToRealSamplers.insert({ sampler.first, realSampler });
			}

			// decode VkShaderModuleCreateInfo structs and create VkShaderModules
			for (auto&& shader : input.shaderModules)
			{
				VkShaderModuleCreateInfo	smCI{};
				std::vector<deUint8>		spirvShader;
				readJSON_VkShaderModuleCreateInfo(jsonReader, shader.second, smCI, spirvShader);
				VkShaderModule				realShaderModule;
				VK_CHECK(createShaderModuleFunc(*pcDevice, &smCI, DE_NULL, &realShaderModule));
				falseToRealShaderModules.insert({ shader.first, realShaderModule });
			}

			// decode renderPass structs and create VkRenderPasses
			for (auto&& renderPass : input.renderPasses)
			{
				if (renderPass.second.find("VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO_2") != std::string::npos)
				{
					VkRenderPassCreateInfo2	rpCI{};
					readJSON_VkRenderPassCreateInfo2(jsonReader, renderPass.second, rpCI);
					VkRenderPass				realRenderPass;
					VK_CHECK(createRenderPass2Func(*pcDevice, &rpCI, DE_NULL, &realRenderPass));
					falseToRealRenderPasses.insert({ renderPass.first, realRenderPass });
				}
				else if (renderPass.second.find("VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO") != std::string::npos)
				{
					VkRenderPassCreateInfo	rpCI{};
					readJSON_VkRenderPassCreateInfo(jsonReader, renderPass.second, rpCI);
					VkRenderPass				realRenderPass;
					VK_CHECK(createRenderPassFunc(*pcDevice, &rpCI, DE_NULL, &realRenderPass));
					falseToRealRenderPasses.insert({ renderPass.first, realRenderPass });
				}
				else
					TCU_THROW(InternalError, "Could not recognize render pass type");
			}

			// create VkDescriptorSetLayouts
			for (auto&& dsCI : descriptorSetLayoutCreateInfos)
			{
				std::vector<VkDescriptorSetLayoutBinding> newDescriptorBindings;
				std::vector<std::vector<VkSampler>> realSamplers;

				// we have to replace all bindings if there is any immutable sampler defined
				bool needReplaceSamplers = false;
				for (deUint32 i = 0; i < dsCI.second.bindingCount; ++i)
				{
					if (dsCI.second.pBindings[i].pImmutableSamplers != DE_NULL)
						needReplaceSamplers = true;
				}

				if (needReplaceSamplers)
				{
					for (deUint32 i = 0; i < dsCI.second.bindingCount; ++i)
					{
						if (dsCI.second.pBindings[i].pImmutableSamplers == DE_NULL)
						{
							newDescriptorBindings.push_back(dsCI.second.pBindings[i]);
							continue;
						}

						realSamplers.push_back(std::vector<VkSampler>(dsCI.second.pBindings[i].descriptorCount));
						for (deUint32 j = 0; j < dsCI.second.pBindings[i].descriptorCount; ++j)
						{
							if (dsCI.second.pBindings[i].pImmutableSamplers[j] == DE_NULL)
							{
								realSamplers.back()[j] = DE_NULL;
								continue;
							}
							else
							{
								auto jt = falseToRealSamplers.find(dsCI.second.pBindings[i].pImmutableSamplers[j]);
								if (jt == end(falseToRealSamplers))
									TCU_THROW(InternalError, "VkSampler not found");
								realSamplers.back()[j] = jt->second;
							}
						}
						VkDescriptorSetLayoutBinding bCopy =
						{
							dsCI.second.pBindings[i].binding,			// deUint32				binding;
							dsCI.second.pBindings[i].descriptorType,	// VkDescriptorType		descriptorType;
							dsCI.second.pBindings[i].descriptorCount,	// deUint32				descriptorCount;
							dsCI.second.pBindings[i].stageFlags,		// VkShaderStageFlags	stageFlags;
							realSamplers.back().data()			// const VkSampler*		pImmutableSamplers;
						};
						newDescriptorBindings.push_back(bCopy);
					}
					dsCI.second.pBindings = newDescriptorBindings.data();
				}

				VkDescriptorSetLayout				realDescriptorSetLayout;
				VK_CHECK(createDescriptorSetLayoutFunc(*pcDevice, &dsCI.second, DE_NULL, &realDescriptorSetLayout));
				falseToRealDescriptorSetLayouts.insert({ dsCI.first, realDescriptorSetLayout });
			}

			// decode pipeline layout structs and create VkPipelineLayouts. Requires creation of new pSetLayouts to bypass constness
			for (auto&& pipelineLayout : input.pipelineLayouts)
			{
				VkPipelineLayoutCreateInfo	plCI{};
				readJSON_VkPipelineLayoutCreateInfo(jsonReader, pipelineLayout.second, plCI);
				// replace descriptor set layouts with real ones
				std::vector<VkDescriptorSetLayout> newSetLayouts;
				for (deUint32 i = 0; i < plCI.setLayoutCount; ++i)
				{
					auto jt = falseToRealDescriptorSetLayouts.find(plCI.pSetLayouts[i]);
					if (jt == end(falseToRealDescriptorSetLayouts))
						TCU_THROW(InternalError, "VkDescriptorSetLayout not found");
					newSetLayouts.push_back(jt->second);
				}
				plCI.pSetLayouts = newSetLayouts.data();

				VkPipelineLayout				realPipelineLayout;
				VK_CHECK(createPipelineLayoutFunc(*pcDevice, &plCI, DE_NULL, &realPipelineLayout));
				falseToRealPipelineLayouts.insert({ pipelineLayout.first, realPipelineLayout });
			}
		}

		// after device creation - start creating pipelines
		if (pipeline.pipelineContents.find("VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO") != std::string::npos)
		{
			VkGraphicsPipelineCreateInfo	gpCI{};
			gpCI.basePipelineHandle = VkPipeline(0);
			readJSON_VkGraphicsPipelineCreateInfo(jsonReader, pipeline.pipelineContents, gpCI);

			// set poolEntrySize for pipeline
			VkPipelineOfflineCreateInfo*				offlineCreateInfo = (VkPipelineOfflineCreateInfo*)findStructureInChain(gpCI.pNext, VK_STRUCTURE_TYPE_PIPELINE_OFFLINE_CREATE_INFO);
			if (offlineCreateInfo != DE_NULL)
				offlineCreateInfo->poolEntrySize = VKSC_DEFAULT_PIPELINE_POOL_SIZE;

			// replace VkShaderModules with real ones. Requires creation of new pStages to bypass constness
			std::vector<VkPipelineShaderStageCreateInfo> newStages;
			for (deUint32 i = 0; i < gpCI.stageCount; ++i)
			{
				VkPipelineShaderStageCreateInfo newStage = gpCI.pStages[i];
				auto jt = falseToRealShaderModules.find(gpCI.pStages[i].module);
				if(jt == end(falseToRealShaderModules))
					TCU_THROW(InternalError, "VkShaderModule not found");
				newStage.module = jt->second;
				newStages.push_back(newStage);
			}
			gpCI.pStages = newStages.data();

			// replace render pass with a real one
			{
				auto jt = falseToRealRenderPasses.find(gpCI.renderPass);
				if (jt == end(falseToRealRenderPasses))
					TCU_THROW(InternalError, "VkRenderPass not found");
				gpCI.renderPass = jt->second;
			}

			// replace pipeline layout with a real one
			{
				auto jt = falseToRealPipelineLayouts.find(gpCI.layout);
				if (jt == end(falseToRealPipelineLayouts))
					TCU_THROW(InternalError, "VkPipelineLayout not found");
				gpCI.layout = jt->second;
			}

			VkPipeline						gPipeline(0u);
			VK_CHECK(createGraphicsPipelinesFunc(*pcDevice, pipelineCache, 1, &gpCI, DE_NULL, &gPipeline));
			// pipeline was added to cache. We may remove it immediately
			destroyPipelineFunc(*pcDevice, gPipeline, DE_NULL);
		}
		else if (pipeline.pipelineContents.find("VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO") != std::string::npos)
		{
			VkComputePipelineCreateInfo	cpCI{};
			cpCI.basePipelineHandle = VkPipeline(0);
			readJSON_VkComputePipelineCreateInfo(jsonReader, pipeline.pipelineContents, cpCI);

			// set poolEntrySize for pipeline
			VkPipelineOfflineCreateInfo*				offlineCreateInfo = (VkPipelineOfflineCreateInfo*)findStructureInChain(cpCI.pNext, VK_STRUCTURE_TYPE_PIPELINE_OFFLINE_CREATE_INFO);
			if (offlineCreateInfo != DE_NULL)
				offlineCreateInfo->poolEntrySize = VKSC_DEFAULT_PIPELINE_POOL_SIZE;

			// replace VkShaderModule with real one
			{
				auto jt = falseToRealShaderModules.find(cpCI.stage.module);
				if(jt == end(falseToRealShaderModules))
					TCU_THROW(InternalError, "VkShaderModule not found");
				cpCI.stage.module = jt->second;
			}

			// replace pipeline layout with a real one
			{
				auto jt = falseToRealPipelineLayouts.find(cpCI.layout);
				if (jt == end(falseToRealPipelineLayouts))
					TCU_THROW(InternalError, "VkPipelineLayout not found");
				cpCI.layout = jt->second;
			}

			VkPipeline						cPipeline(0u);
			VK_CHECK(createComputePipelinesFunc(*pcDevice, pipelineCache, 1, &cpCI, DE_NULL, &cPipeline));
			// pipeline was added to cache. We may remove it immediately
			destroyPipelineFunc(*pcDevice, cPipeline, DE_NULL);
		}
		else
			TCU_THROW(InternalError, "Could not recognize pipeline type");
	}

	if (pcDevice.get() != DE_NULL)
	{
		// getPipelineCacheData() binary data, store it in m_cacheData
		std::size_t cacheSize;
		VK_CHECK(getPipelineCacheDataFunc(*pcDevice, pipelineCache, &cacheSize, DE_NULL));
		resultCacheData.resize(cacheSize);
		VK_CHECK(getPipelineCacheDataFunc(*pcDevice, pipelineCache, &cacheSize, resultCacheData.data()));

		// clean up resources - in ResourceInterfaceStandard we just simulate Vulkan SC driver after all...
		for (auto&& it : falseToRealPipelineLayouts)			destroyPipelineLayoutFunc(*pcDevice, it.second, DE_NULL);
		for (auto&& it : falseToRealDescriptorSetLayouts)		destroyDescriptorSetLayoutFunc(*pcDevice, it.second, DE_NULL);
		for (auto&& it : falseToRealRenderPasses)				destroyRenderPassFunc(*pcDevice, it.second, DE_NULL);
		for (auto&& it : falseToRealShaderModules)				destroyShaderModuleFunc(*pcDevice, it.second, DE_NULL);
		for (auto&& it : falseToRealSamplers)					destroySamplerFunc(*pcDevice, it.second, DE_NULL);
		for (auto&& it : falseToRealSamplerYcbcrConversions)	destroySamplerYcbcrConversionFunc(*pcDevice, it.second, DE_NULL);

		destroyPipelineCacheFunc(*pcDevice, pipelineCache, DE_NULL);
	}

	return resultCacheData;
}

std::vector<VulkanPipelineSize>	extractSizesFromPipelineCache (const VulkanPipelineCacheInput&	input,
															   const vector<u8>&				pipelineCache,
															   deUint32							pipelineDefaultSize,
															   bool								recyclePipelineMemory)
{
	std::vector<VulkanPipelineSize>							result;
	if (input.pipelines.empty())
		return result;
	VKSCPipelineCacheHeaderReader							pcr	(pipelineCache.size(), pipelineCache.data());
	if(pcr.isValid())
	{
		for (uint32_t p = 0; p < pcr.getPipelineIndexCount(); ++p)
		{
			const VkPipelineCacheSafetyCriticalIndexEntry*	pie	= pcr.getPipelineIndexEntry(p);
			if (nullptr != pie)
			{
				VulkanPipelineSize pipelineSize;
				pipelineSize.id = resetPipelineOfflineCreateInfo();
				for (deUint32 i = 0; i < VK_UUID_SIZE; ++i)
					pipelineSize.id.pipelineIdentifier[i] = pie->pipelineIdentifier[i];
				pipelineSize.size	= deUint32(pie->pipelineMemorySize);
				pipelineSize.count	= 0u;
				auto it = std::find_if(begin(input.pipelines), end(input.pipelines), vksc_server::PipelineIdentifierEqual(pipelineSize.id));
				if (it != end(input.pipelines))
				{
					if (recyclePipelineMemory)
						pipelineSize.count = it->maxCount;
					else // you'd better have enough memory...
						pipelineSize.count = it->allCount;
				}
				result.emplace_back(pipelineSize);
			}
		}
	}
	else // ordinary Vulkan pipeline. Declare all pipeline sizes as equal to pipelineDefaultSize
	{
		for (uint32_t p = 0; p < input.pipelines.size(); ++p)
		{
			VulkanPipelineSize pipelineSize;
			pipelineSize.id = resetPipelineOfflineCreateInfo();
			for (deUint32 i = 0; i < VK_UUID_SIZE; ++i)
				pipelineSize.id.pipelineIdentifier[i] = input.pipelines[p].id.pipelineIdentifier[i];
			pipelineSize.size = pipelineDefaultSize;
			if (recyclePipelineMemory)
				pipelineSize.count = input.pipelines[p].maxCount;
			else // you'd better have enough memory...
				pipelineSize.count = input.pipelines[p].allCount;
			result.emplace_back(pipelineSize);
		}
	}

	return result;
}


}