/*------------------------------------------------------------------------
 * Vulkan Conformance Tests
 * ------------------------
 *
 * Copyright (c) 2017 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.
 *
 *//*!
 * \file
 * \brief Vulkan Multi View Render Util
 *//*--------------------------------------------------------------------*/

#include "vktMultiViewRenderUtil.hpp"
#include "vktMultiViewRenderPassUtil.hpp"

#include "vktTestCase.hpp"
#include "vkBuilderUtil.hpp"
#include "vkRefUtil.hpp"
#include "vkQueryUtil.hpp"
#include "vkTypeUtil.hpp"
#include "vkPrograms.hpp"
#include "vkPlatform.hpp"
#include "vkMemUtil.hpp"
#include "vkImageUtil.hpp"

#include "tcuTestLog.hpp"
#include "tcuResource.hpp"
#include "tcuImageCompare.hpp"
#include "tcuCommandLine.hpp"
#include "tcuTextureUtil.hpp"
#include "tcuRGBA.hpp"

namespace vkt
{
namespace MultiView
{
using namespace vk;
using de::MovePtr;
using de::UniquePtr;
using std::vector;

VkImageAspectFlags getAspectFlags (tcu::TextureFormat format)
{
	VkImageAspectFlags	aspectFlag	= 0;
	aspectFlag |= (tcu::hasDepthComponent(format.order)? VK_IMAGE_ASPECT_DEPTH_BIT : 0);
	aspectFlag |= (tcu::hasStencilComponent(format.order)? VK_IMAGE_ASPECT_STENCIL_BIT : 0);

	if (!aspectFlag)
		aspectFlag = VK_IMAGE_ASPECT_COLOR_BIT;

	return aspectFlag;
}

VkFormat getStencilBufferFormat (const vk::VkFormat depthStencilImageFormat)
{
	const tcu::TextureFormat tcuFormat = mapVkFormat(depthStencilImageFormat);
	const VkFormat result = (tcuFormat.order == tcu::TextureFormat::S || tcuFormat.order == tcu::TextureFormat::DS) ? VK_FORMAT_S8_UINT : VK_FORMAT_UNDEFINED;

	DE_ASSERT(result != VK_FORMAT_UNDEFINED);

	return result;
}

VkFormat getDepthBufferFormat (const vk::VkFormat depthStencilImageFormat)
{
	VkFormat result = VK_FORMAT_UNDEFINED;

	switch (depthStencilImageFormat)
	{
		case VK_FORMAT_D16_UNORM:
		case VK_FORMAT_D16_UNORM_S8_UINT:
		{
			result = VK_FORMAT_D16_UNORM;

			break;
		}

		case VK_FORMAT_D32_SFLOAT:
		case VK_FORMAT_D32_SFLOAT_S8_UINT:
		{
			result = VK_FORMAT_D32_SFLOAT;
			break;
		}

		case VK_FORMAT_X8_D24_UNORM_PACK32:
		case VK_FORMAT_D24_UNORM_S8_UINT:
		{
			result = VK_FORMAT_D24_UNORM_S8_UINT;
			break;
		}

		default:
			result = VK_FORMAT_UNDEFINED;
	}

	DE_ASSERT(result != VK_FORMAT_UNDEFINED);

	return result;
}

VkImageCreateInfo makeImageCreateInfo (const VkImageType imageType, const VkExtent3D& extent, const VkFormat format, const VkImageUsageFlags usage, const VkSampleCountFlagBits samples)
{
	const VkImageCreateInfo imageInfo	=
	{
		VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,		// VkStructureType			sType;
		DE_NULL,									// const void*				pNext;
		(VkImageCreateFlags)0,						// VkImageCreateFlags		flags;
		imageType,									// VkImageType				imageType;
		format,										// VkFormat					format;
		{extent.width, extent.height, 1u},			// VkExtent3D				extent;
		1u,											// uint32_t					mipLevels;
		extent.depth,								// uint32_t					arrayLayers;
		samples,									// VkSampleCountFlagBits	samples;
		VK_IMAGE_TILING_OPTIMAL,					// VkImageTiling			tiling;
		usage,										// VkImageUsageFlags		usage;
		VK_SHARING_MODE_EXCLUSIVE,					// VkSharingMode			sharingMode;
		0u,											// uint32_t					queueFamilyIndexCount;
		DE_NULL,									// const uint32_t*			pQueueFamilyIndices;
		VK_IMAGE_LAYOUT_UNDEFINED,					// VkImageLayout			initialLayout;
	};
	return imageInfo;
}

Move<VkDescriptorSetLayout> makeDescriptorSetLayout (const DeviceInterface&		vk,
													const VkDevice				device)
{
	const VkDescriptorSetLayoutBinding		binding		=
	{
		0u,											//deUint32				binding;
		vk::VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT,	//VkDescriptorType		descriptorType;
		1u,											//deUint32				descriptorCount;
		vk::VK_SHADER_STAGE_FRAGMENT_BIT,			//VkShaderStageFlags	stageFlags;
		DE_NULL										//const VkSampler*		pImmutableSamplers;
	};

	const VkDescriptorSetLayoutCreateInfo	createInfo	=
	{
		vk::VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,	//VkStructureType						sType;
		DE_NULL,													//const void*							pNext;
		0u,															//VkDescriptorSetLayoutCreateFlags		flags;
		1u,															//deUint32								bindingCount;
		&binding													//const VkDescriptorSetLayoutBinding*	pBindings;
	};
	return vk::createDescriptorSetLayout(vk, device, &createInfo);
}

template<typename AttachmentDesc, typename AttachmentRef, typename SubpassDesc, typename SubpassDep, typename RenderPassCreateInfo>
Move<VkRenderPass> makeRenderPass (const DeviceInterface&		vk,
								   const VkDevice				device,
								   const VkFormat				colorFormat,
								   const vector<deUint32>&		viewMasks,
								   const VkSampleCountFlagBits	samples,
								   const VkAttachmentLoadOp		colorLoadOp,
								   const VkFormat				dsFormat)
{
	const bool									dsAttacmentAvailable		= (dsFormat != vk::VK_FORMAT_UNDEFINED);
	const deUint32								subpassCount				= static_cast<deUint32>(viewMasks.size());
	const AttachmentDesc						colorAttachmentDescription	// VkAttachmentDescription										||  VkAttachmentDescription2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		(VkAttachmentDescriptionFlags)0,									//  VkAttachmentDescriptionFlags	flags;						||  VkAttachmentDescriptionFlags		flags;
		colorFormat,														//  VkFormat						format;						||  VkFormat							format;
		samples,															//  VkSampleCountFlagBits			samples;					||  VkSampleCountFlagBits				samples;
		colorLoadOp,														//  VkAttachmentLoadOp				loadOp;						||  VkAttachmentLoadOp					loadOp;
		VK_ATTACHMENT_STORE_OP_STORE,										//  VkAttachmentStoreOp				storeOp;					||  VkAttachmentStoreOp					storeOp;
		VK_ATTACHMENT_LOAD_OP_DONT_CARE,									//  VkAttachmentLoadOp				stencilLoadOp;				||  VkAttachmentLoadOp					stencilLoadOp;
		VK_ATTACHMENT_STORE_OP_DONT_CARE,									//  VkAttachmentStoreOp				stencilStoreOp;				||  VkAttachmentStoreOp					stencilStoreOp;
		VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,							//  VkImageLayout					initialLayout;				||  VkImageLayout						initialLayout;
		VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL							//  VkImageLayout					finalLayout;				||  VkImageLayout						finalLayout;
	);

	const AttachmentRef							colorAttachmentReference	//  VkAttachmentReference										||  VkAttachmentReference2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		0u,																	//  deUint32						attachment;					||  deUint32							attachment;
		VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,							//  VkImageLayout					layout;						||  VkImageLayout						layout;
		0u																	//																||  VkImageAspectFlags					aspectMask;
	);

	const AttachmentDesc						dsAttachmentDescription		//  VkAttachmentDescription										||  VkAttachmentDescription2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		(VkAttachmentDescriptionFlags)0,									//  VkAttachmentDescriptionFlags	flags;						||  VkAttachmentDescriptionFlags		flags;
		dsFormat,															//  VkFormat						format;						||  VkFormat							format;
		samples,															//  VkSampleCountFlagBits			samples;					||  VkSampleCountFlagBits				samples;
		VK_ATTACHMENT_LOAD_OP_LOAD,											//  VkAttachmentLoadOp				loadOp;						||  VkAttachmentLoadOp					loadOp;
		VK_ATTACHMENT_STORE_OP_STORE,										//  VkAttachmentStoreOp				storeOp;					||  VkAttachmentStoreOp					storeOp;
		VK_ATTACHMENT_LOAD_OP_LOAD,											//  VkAttachmentLoadOp				stencilLoadOp;				||  VkAttachmentLoadOp					stencilLoadOp;
		VK_ATTACHMENT_STORE_OP_STORE,										//  VkAttachmentStoreOp				stencilStoreOp;				||  VkAttachmentStoreOp					stencilStoreOp;
		VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,					//  VkImageLayout					initialLayout;				||  VkImageLayout						initialLayout;
		VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL					//  VkImageLayout					finalLayout;				||  VkImageLayout						finalLayout;
	);

	const AttachmentRef							depthAttachmentReference	//  VkAttachmentReference										||  VkAttachmentReference2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		dsAttacmentAvailable ? 1u : VK_ATTACHMENT_UNUSED,					//  deUint32						attachment;					||  deUint32							attachment;
		dsAttacmentAvailable ?												//  VkImageLayout					layout;						||  VkImageLayout						layout;
			VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL :
			VK_IMAGE_LAYOUT_UNDEFINED,
		0u																	//																||  VkImageAspectFlags					aspectMask;
	);

	const AttachmentDesc						attachmentDescriptions[]	=
	{
		colorAttachmentDescription,
		dsAttachmentDescription,
	};

	DE_ASSERT((typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo1)) || (typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo2)));

	vector <SubpassDesc>						subpassDescriptions;
	for (deUint32 subpassNdx = 0; subpassNdx < subpassCount; ++subpassNdx)
	{
		const deUint32							viewMask					= (typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo2))
																			? viewMasks[subpassNdx]
																			: 0u;
		const SubpassDesc						subpassDescription			//  VkSubpassDescription										||  VkSubpassDescription2KHR
		(
																			//																||  VkStructureType						sType;
			DE_NULL,														//																||  const void*							pNext;
			(VkSubpassDescriptionFlags)0,									//  VkSubpassDescriptionFlags		flags;						||  VkSubpassDescriptionFlags			flags;
			VK_PIPELINE_BIND_POINT_GRAPHICS,								//  VkPipelineBindPoint				pipelineBindPoint;			||  VkPipelineBindPoint					pipelineBindPoint;
			viewMask,														//																||  deUint32							viewMask;
			0u,																//  deUint32						inputAttachmentCount;		||  deUint32							inputAttachmentCount;
			DE_NULL,														//  const VkAttachmentReference*	pInputAttachments;			||  const VkAttachmentReference2KHR*	pInputAttachments;
			1u,																//  deUint32						colorAttachmentCount;		||  deUint32							colorAttachmentCount;
			&colorAttachmentReference,										//  const VkAttachmentReference*	pColorAttachments;			||  const VkAttachmentReference2KHR*	pColorAttachments;
			DE_NULL,														//  const VkAttachmentReference*	pResolveAttachments;		||  const VkAttachmentReference2KHR*	pResolveAttachments;
			&depthAttachmentReference,										//  const VkAttachmentReference*	pDepthStencilAttachment;	||  const VkAttachmentReference2KHR*	pDepthStencilAttachment;
			0u,																//  deUint32						preserveAttachmentCount;	||  deUint32							preserveAttachmentCount;
			DE_NULL															//  const deUint32*					pPreserveAttachments;		||  const deUint32*						pPreserveAttachments;
		);

		subpassDescriptions.push_back(subpassDescription);
	}

	const VkRenderPassMultiviewCreateInfo		renderPassMultiviewInfo		=
	{
		VK_STRUCTURE_TYPE_RENDER_PASS_MULTIVIEW_CREATE_INFO_KHR,			// VkStructureType	sType;
		DE_NULL,															// const void*		pNext;
		subpassCount,														// uint32_t			subpassCount;
		&viewMasks[0],														// const uint32_t*	pViewMasks;
		0u,																	// uint32_t			dependencyCount;
		DE_NULL,															// const int32_t*	pViewOffsets;
		0u,																	// uint32_t			correlationMaskCount;
		DE_NULL,															// const uint32_t*	pCorrelationMasks;
	};
	const VkRenderPassMultiviewCreateInfo*		renderPassMultiviewInfoPtr	= (typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo1))
																			? &renderPassMultiviewInfo
																			: DE_NULL;

	const VkPipelineStageFlags					srcStageMask				= dsAttacmentAvailable
																			? VK_PIPELINE_STAGE_EARLY_FRAGMENT_TESTS_BIT
																			: VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
	const VkAccessFlags							srcAccessMask				= dsAttacmentAvailable
																			? VK_ACCESS_DEPTH_STENCIL_ATTACHMENT_WRITE_BIT
																			: VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
	vector <SubpassDep>							subpassDependencies;
	for(deUint32 subpassNdx = 0u; subpassNdx < subpassCount; ++subpassNdx)
	{
		const auto dependencyFlags = (subpassNdx == subpassCount - 1u) ? (VK_DEPENDENCY_BY_REGION_BIT | VK_DEPENDENCY_VIEW_LOCAL_BIT_KHR) : VK_DEPENDENCY_VIEW_LOCAL_BIT;

		const SubpassDep						subpassDependency			//  VkSubpassDependency											||  VkSubpassDependency2KHR
		(
																			//																||	VkStructureType						sType;
			DE_NULL,														//																||	const void*							pNext;
			subpassNdx,														//  deUint32						srcSubpass;					||	deUint32							srcSubpass;
			(subpassNdx == subpassCount -1u) ? subpassNdx : subpassNdx+1u,	//  deUint32						dstSubpass;					||	deUint32							dstSubpass;
			srcStageMask,													//  VkPipelineStageFlags			srcStageMask;				||	VkPipelineStageFlags				srcStageMask;
			VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT,							//  VkPipelineStageFlags			dstStageMask;				||	VkPipelineStageFlags				dstStageMask;
			srcAccessMask,													//  VkAccessFlags					srcAccessMask;				||	VkAccessFlags						srcAccessMask;
			VK_ACCESS_INPUT_ATTACHMENT_READ_BIT,							//  VkAccessFlags					dstAccessMask;				||	VkAccessFlags						dstAccessMask;
			dependencyFlags,												//  VkDependencyFlags				dependencyFlags;			||	VkDependencyFlags					dependencyFlags;
			0																//																||	deInt32								viewOffset;
		);
		subpassDependencies.push_back(subpassDependency);
	}

	const RenderPassCreateInfo					renderPassInfo				//  VkRenderPassCreateInfo										||  VkRenderPassCreateInfo2KHR
	(
																			//  VkStructureType					sType;						||  VkStructureType						sType;
		renderPassMultiviewInfoPtr,											//  const void*						pNext;						||  const void*							pNext;
		(VkRenderPassCreateFlags)0,											//  VkRenderPassCreateFlags			flags;						||  VkRenderPassCreateFlags				flags;
		dsAttacmentAvailable ? 2u : 1u,										//  deUint32						attachmentCount;			||  deUint32							attachmentCount;
		attachmentDescriptions,												//  const VkAttachmentDescription*	pAttachments;				||  const VkAttachmentDescription2KHR*	pAttachments;
		subpassCount,														//  deUint32						subpassCount;				||  deUint32							subpassCount;
		&subpassDescriptions[0],											//  const VkSubpassDescription*		pSubpasses;					||  const VkSubpassDescription2KHR*		pSubpasses;
		subpassCount,														//  deUint32						dependencyCount;			||  deUint32							dependencyCount;
		&subpassDependencies[0],											//  const VkSubpassDependency*		pDependencies;				||  const VkSubpassDependency2KHR*		pDependencies;
		0u,																	//																||  deUint32							correlatedViewMaskCount;
		DE_NULL																//																||  const deUint32*						pCorrelatedViewMasks;
	);

	return renderPassInfo.createRenderPass(vk, device);
}

// Instantiate function for legacy renderpass structures
template
Move<VkRenderPass> makeRenderPass<AttachmentDescription1, AttachmentReference1, SubpassDescription1, SubpassDependency1, RenderPassCreateInfo1>
								  (const DeviceInterface&		vk,
								   const VkDevice				device,
								   const VkFormat				colorFormat,
								   const vector<deUint32>&		viewMasks,
								   const VkSampleCountFlagBits	samples,
								   const VkAttachmentLoadOp		colorLoadOp,
								   const VkFormat				dsFormat);

// Instantiate function for renderpass2 structures
template
Move<VkRenderPass> makeRenderPass<AttachmentDescription2, AttachmentReference2, SubpassDescription2, SubpassDependency2, RenderPassCreateInfo2>
								  (const DeviceInterface&		vk,
								   const VkDevice				device,
								   const VkFormat				colorFormat,
								   const vector<deUint32>&		viewMasks,
								   const VkSampleCountFlagBits	samples,
								   const VkAttachmentLoadOp		colorLoadOp,
								   const VkFormat				dsFormat);


template<typename AttachmentDesc, typename AttachmentRef, typename SubpassDesc, typename SubpassDep, typename RenderPassCreateInfo>
Move<VkRenderPass> makeRenderPassWithDepth (const DeviceInterface& vk, const VkDevice device, const VkFormat colorFormat, const vector<deUint32>& viewMasks, const VkFormat dsFormat)
{
	return makeRenderPass<AttachmentDesc, AttachmentRef, SubpassDesc, SubpassDep, RenderPassCreateInfo>(vk, device, colorFormat, viewMasks, VK_SAMPLE_COUNT_1_BIT, VK_ATTACHMENT_LOAD_OP_CLEAR, dsFormat);
}

// Instantiate function for legacy renderpass structures
template
Move<VkRenderPass> makeRenderPassWithDepth<AttachmentDescription1, AttachmentReference1, SubpassDescription1, SubpassDependency1, RenderPassCreateInfo1>
										   (const DeviceInterface&		vk,
											const VkDevice				device,
											const VkFormat				colorFormat,
											const vector<deUint32>&		viewMasks,
											const VkFormat				dsFormat);

// Instantiate function for renderpass2 structures
template
Move<VkRenderPass> makeRenderPassWithDepth<AttachmentDescription2, AttachmentReference2, SubpassDescription2, SubpassDependency2, RenderPassCreateInfo2>
										   (const DeviceInterface&		vk,
											const VkDevice				device,
											const VkFormat				colorFormat,
											const vector<deUint32>&		viewMasks,
											const VkFormat				dsFormat);

template<typename AttachmentDesc, typename AttachmentRef, typename SubpassDesc, typename SubpassDep, typename RenderPassCreateInfo>
Move<VkRenderPass> makeRenderPassWithAttachments (const DeviceInterface&	vk,
												  const VkDevice			device,
												  const VkFormat			colorFormat,
												  const vector<deUint32>&	viewMasks,
												  bool						useAspects)
{
	const deUint32								subpassCount				= static_cast<deUint32>(viewMasks.size());

	const AttachmentDesc						colorAttachmentDescription	//  VkAttachmentDescription										||  VkAttachmentDescription2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		(VkAttachmentDescriptionFlags)0,									//  VkAttachmentDescriptionFlags	flags;						||  VkAttachmentDescriptionFlags		flags;
		colorFormat,														//  VkFormat						format;						||  VkFormat							format;
		VK_SAMPLE_COUNT_1_BIT,												//  VkSampleCountFlagBits			samples;					||  VkSampleCountFlagBits				samples;
		VK_ATTACHMENT_LOAD_OP_CLEAR,										//  VkAttachmentLoadOp				loadOp;						||  VkAttachmentLoadOp					loadOp;
		VK_ATTACHMENT_STORE_OP_STORE,										//  VkAttachmentStoreOp				storeOp;					||  VkAttachmentStoreOp					storeOp;
		VK_ATTACHMENT_LOAD_OP_DONT_CARE,									//  VkAttachmentLoadOp				stencilLoadOp;				||  VkAttachmentLoadOp					stencilLoadOp;
		VK_ATTACHMENT_STORE_OP_DONT_CARE,									//  VkAttachmentStoreOp				stencilStoreOp;				||  VkAttachmentStoreOp					stencilStoreOp;
		VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,							//  VkImageLayout					initialLayout;				||  VkImageLayout						initialLayout;
		VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL							//  VkImageLayout					finalLayout;				||  VkImageLayout						finalLayout;
	);

	const AttachmentDesc						inputAttachmentDescription	//  VkAttachmentDescription										||  VkAttachmentDescription2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		(VkAttachmentDescriptionFlags)0,									//  VkAttachmentDescriptionFlags	flags;						||  VkAttachmentDescriptionFlags		flags;
		colorFormat,														//  VkFormat						format;						||  VkFormat							format;
		VK_SAMPLE_COUNT_1_BIT,												//  VkSampleCountFlagBits			samples;					||  VkSampleCountFlagBits				samples;
		VK_ATTACHMENT_LOAD_OP_LOAD,											//  VkAttachmentLoadOp				loadOp;						||  VkAttachmentLoadOp					loadOp;
		VK_ATTACHMENT_STORE_OP_STORE,										//  VkAttachmentStoreOp				storeOp;					||  VkAttachmentStoreOp					storeOp;
		VK_ATTACHMENT_LOAD_OP_DONT_CARE,									//  VkAttachmentLoadOp				stencilLoadOp;				||  VkAttachmentLoadOp					stencilLoadOp;
		VK_ATTACHMENT_STORE_OP_DONT_CARE,									//  VkAttachmentStoreOp				stencilStoreOp;				||  VkAttachmentStoreOp					stencilStoreOp;
		VK_IMAGE_LAYOUT_GENERAL,											//  VkImageLayout					initialLayout;				||  VkImageLayout						initialLayout;
		VK_IMAGE_LAYOUT_GENERAL												//  VkImageLayout					finalLayout;				||  VkImageLayout						finalLayout;
	);

	vector<AttachmentDesc>						attachments;
	attachments.push_back(colorAttachmentDescription);
	attachments.push_back(inputAttachmentDescription);

	const AttachmentRef							colorAttachmentReference	//  VkAttachmentReference										||  VkAttachmentReference2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		0u,																	//  deUint32						attachment;					||  deUint32							attachment;
		VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,							//  VkImageLayout					layout;						||  VkImageLayout						layout;
		0u																	//																||  VkImageAspectFlags					aspectMask;
	);

	const AttachmentRef							inputAttachmentReference	//  VkAttachmentReference										||  VkAttachmentReference2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		1u,																	//  deUint32						attachment;					||  deUint32							attachment;
		VK_IMAGE_LAYOUT_GENERAL,											//  VkImageLayout					layout;						||  VkImageLayout						layout;
		useAspects ? VK_IMAGE_ASPECT_COLOR_BIT : static_cast<VkImageAspectFlagBits>(0u)							//																||  VkImageAspectFlags					aspectMask;
	);

	const AttachmentRef							depthAttachmentReference	//  VkAttachmentReference										||  VkAttachmentReference2KHR
	(
																			//																||  VkStructureType						sType;
		DE_NULL,															//																||  const void*							pNext;
		VK_ATTACHMENT_UNUSED,												//  deUint32						attachment;					||  deUint32							attachment;
		VK_IMAGE_LAYOUT_UNDEFINED,											//  VkImageLayout					layout;						||  VkImageLayout						layout;
		0u																	//																||  VkImageAspectFlags					aspectMask;
	);

	DE_ASSERT((typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo1)) || (typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo2)));

	vector <SubpassDesc>						subpassDescriptions;
	for (deUint32 subpassNdx = 0; subpassNdx < subpassCount; ++subpassNdx)
	{
		const deUint32							viewMask					= (typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo2))
																			? viewMasks[subpassNdx]
																			: 0u;
		const SubpassDesc						subpassDescription			//  VkSubpassDescription										||  VkSubpassDescription2KHR
		(
																			//																||  VkStructureType						sType;
			DE_NULL,														//																||  const void*							pNext;
			(VkSubpassDescriptionFlags)0,									// VkSubpassDescriptionFlags		flags;						||  VkSubpassDescriptionFlags			flags;
			VK_PIPELINE_BIND_POINT_GRAPHICS,								// VkPipelineBindPoint				pipelineBindPoint;			||  VkPipelineBindPoint					pipelineBindPoint;
			viewMask,														//																||  deUint32							viewMask;
			1u,																// deUint32							inputAttachmentCount;		||  deUint32							inputAttachmentCount;
			&inputAttachmentReference,										// const VkAttachmentReference*		pInputAttachments;			||  const VkAttachmentReference2KHR*	pInputAttachments;
			1u,																// deUint32							colorAttachmentCount;		||  deUint32							colorAttachmentCount;
			&colorAttachmentReference,										// const VkAttachmentReference*		pColorAttachments;			||  const VkAttachmentReference2KHR*	pColorAttachments;
			DE_NULL,														// const VkAttachmentReference*		pResolveAttachments;		||  const VkAttachmentReference2KHR*	pResolveAttachments;
			&depthAttachmentReference,										// const VkAttachmentReference*		pDepthStencilAttachment;	||  const VkAttachmentReference2KHR*	pDepthStencilAttachment;
			0u,																// deUint32							preserveAttachmentCount;	||  deUint32							preserveAttachmentCount;
			DE_NULL															// const deUint32*					pPreserveAttachments;		||  const deUint32*						pPreserveAttachments;
		);
		subpassDescriptions.push_back(subpassDescription);
	}

	const VkRenderPassMultiviewCreateInfo		renderPassMultiviewInfo		=
	{
		VK_STRUCTURE_TYPE_RENDER_PASS_MULTIVIEW_CREATE_INFO_KHR,	//VkStructureType	sType;
		DE_NULL,													//const void*		pNext;
		subpassCount,												//uint32_t			subpassCount;
		&viewMasks[0],												//const uint32_t*	pViewMasks;
		0u,															//uint32_t			dependencyCount;
		DE_NULL,													//const int32_t*	pViewOffsets;
		0u,															//uint32_t			correlationMaskCount;
		DE_NULL,													//const uint32_t*	pCorrelationMasks;
	};
	const VkRenderPassMultiviewCreateInfo*		renderPassMultiviewInfoPtr	= typeid(RenderPassCreateInfo) == typeid(RenderPassCreateInfo1)
																			? &renderPassMultiviewInfo
																			: DE_NULL;

	vector <SubpassDep>							subpassDependencies;
	for(deUint32 subpassNdx = 0u; subpassNdx < subpassCount; ++subpassNdx)
	{
		const auto dependencyFlags = (subpassNdx == subpassCount - 1u) ? (VK_DEPENDENCY_BY_REGION_BIT | VK_DEPENDENCY_VIEW_LOCAL_BIT_KHR) : VK_DEPENDENCY_VIEW_LOCAL_BIT;

		const SubpassDep						subpassDependency			//  VkSubpassDependency											||  VkSubpassDependency2KHR
		(
																			//																||	VkStructureType						sType;
			DE_NULL,														//																||	const void*							pNext;
			subpassNdx,														//  deUint32						srcSubpass;					||	deUint32							srcSubpass;
			(subpassNdx == subpassCount -1u) ? subpassNdx : subpassNdx+1u,	//  deUint32						dstSubpass;					||	deUint32							dstSubpass;
			VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT,					//  VkPipelineStageFlags			srcStageMask;				||	VkPipelineStageFlags				srcStageMask;
			VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT,							//  VkPipelineStageFlags			dstStageMask;				||	VkPipelineStageFlags				dstStageMask;
			VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT,							//  VkAccessFlags					srcAccessMask;				||	VkAccessFlags						srcAccessMask;
			VK_ACCESS_INPUT_ATTACHMENT_READ_BIT,							//  VkAccessFlags					dstAccessMask;				||	VkAccessFlags						dstAccessMask;
			dependencyFlags,												//  VkDependencyFlags				dependencyFlags;			||	VkDependencyFlags					dependencyFlags;
			0																//																||	deInt32								viewOffset;
		);
		subpassDependencies.push_back(subpassDependency);
	}

	const RenderPassCreateInfo					renderPassInfo				//  VkRenderPassCreateInfo										||  VkRenderPassCreateInfo2KHR
	(
																			//  VkStructureType					sType;						||  VkStructureType						sType;
		renderPassMultiviewInfoPtr,											//  const void*						pNext;						||  const void*							pNext;
		(VkRenderPassCreateFlags)0,											//  VkRenderPassCreateFlags			flags;						||  VkRenderPassCreateFlags				flags;
		2u,																	//  deUint32						attachmentCount;			||  deUint32							attachmentCount;
		&attachments[0],													//  const VkAttachmentDescription*	pAttachments;				||  const VkAttachmentDescription2KHR*	pAttachments;
		subpassCount,														//  deUint32						subpassCount;				||  deUint32							subpassCount;
		&subpassDescriptions[0],											//  const VkSubpassDescription*		pSubpasses;					||  const VkSubpassDescription2KHR*		pSubpasses;
		subpassCount,														//  deUint32						dependencyCount;			||  deUint32							dependencyCount;
		&subpassDependencies[0],											//  const VkSubpassDependency*		pDependencies;				||  const VkSubpassDependency2KHR*		pDependencies;
		0u,																	//																||  deUint32							correlatedViewMaskCount;
		DE_NULL																//																||  const deUint32*						pCorrelatedViewMasks;
	);

	return renderPassInfo.createRenderPass(vk, device);
}

// Instantiate function for legacy renderpass structures
template
Move<VkRenderPass> makeRenderPassWithAttachments<AttachmentDescription1, AttachmentReference1, SubpassDescription1, SubpassDependency1, RenderPassCreateInfo1>
												 (const DeviceInterface&	vk,
												  const VkDevice			device,
												  const VkFormat			colorFormat,
												  const vector<deUint32>&	viewMasks,
												  bool						useAspects);

// Instantiate function for renderpass2 structures
template
Move<VkRenderPass> makeRenderPassWithAttachments<AttachmentDescription2, AttachmentReference2, SubpassDescription2, SubpassDependency2, RenderPassCreateInfo2>
												 (const DeviceInterface&	vk,
												  const VkDevice			device,
												  const VkFormat			colorFormat,
												  const vector<deUint32>&	viewMasks,
												  bool						useAspects);

void beginSecondaryCommandBuffer (const DeviceInterface&				vk,
								   const VkCommandBuffer				commandBuffer,
								   const VkRenderPass					renderPass,
								   const deUint32						subpass,
								   const VkFramebuffer					framebuffer)
{
	const VkCommandBufferInheritanceInfo	secCmdBufInheritInfo	=
	{
		VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO,	//VkStructureType				sType;
		DE_NULL,											//const void*					pNext;
		renderPass,											//VkRenderPass					renderPass;
		subpass,											//deUint32						subpass;
		framebuffer,										//VkFramebuffer					framebuffer;
		VK_FALSE,											//VkBool32						occlusionQueryEnable;
		(VkQueryControlFlags)0u,							//VkQueryControlFlags			queryFlags;
		(VkQueryPipelineStatisticFlags)0u,					//VkQueryPipelineStatisticFlags	pipelineStatistics;
	};

	const VkCommandBufferBeginInfo			info					=
	{
		VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,		// VkStructureType							sType;
		DE_NULL,											// const void*								pNext;
		VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT,	// VkCommandBufferUsageFlags				flags;
		&secCmdBufInheritInfo,							// const VkCommandBufferInheritanceInfo*	pInheritanceInfo;
	};
	VK_CHECK(vk.beginCommandBuffer(commandBuffer, &info));
}

void imageBarrier (const DeviceInterface&			vk,
				   const VkCommandBuffer			cmdBuffer,
				   const VkImage					image,
				   const VkImageSubresourceRange	subresourceRange,
				   const VkImageLayout				oldLayout,
				   const VkImageLayout				newLayout,
				   const VkAccessFlags				srcAccessMask,
				   const VkAccessFlags				dstAccessMask,
				   const VkPipelineStageFlags		srcStageMask,
				   const VkPipelineStageFlags		dstStageMask)
{
	const VkImageMemoryBarrier		barrier				=
	{
		VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,	// VkStructureType			sType;
		DE_NULL,								// const void*				pNext;
		srcAccessMask,							// VkAccessFlags			srcAccessMask;
		dstAccessMask,							// VkAccessFlags			dstAccessMask;
		oldLayout,								// VkImageLayout			oldLayout;
		newLayout,								// VkImageLayout			newLayout;
		VK_QUEUE_FAMILY_IGNORED,				// deUint32					srcQueueFamilyIndex;
		VK_QUEUE_FAMILY_IGNORED,				// deUint32					dstQueueFamilyIndex;
		image,									// VkImage					image;
		subresourceRange,						// VkImageSubresourceRange	subresourceRange;
	};

	vk.cmdPipelineBarrier(cmdBuffer, srcStageMask, dstStageMask, (VkDependencyFlags)0, 0u, (const VkMemoryBarrier*)DE_NULL,
		0u, (const VkBufferMemoryBarrier*)DE_NULL,
		1u, &barrier);
}

} // MultiView
} // vkt