/*------------------------------------------------------------------------
 * Vulkan Conformance Tests
 * ------------------------
 *
 * Copyright (c) 2016 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  vktSparseResourcesBufferSparseBinding.cpp
 * \brief Buffer Sparse Binding tests
 *//*--------------------------------------------------------------------*/

#include "vktSparseResourcesBufferSparseBinding.hpp"
#include "vktSparseResourcesTestsUtil.hpp"
#include "vktSparseResourcesBase.hpp"
#include "vktTestCaseUtil.hpp"

#include "vkDefs.hpp"
#include "vkRef.hpp"
#include "vkRefUtil.hpp"
#include "vkPlatform.hpp"
#include "vkPrograms.hpp"
#include "vkMemUtil.hpp"
#include "vkBarrierUtil.hpp"
#include "vkBuilderUtil.hpp"
#include "vkImageUtil.hpp"
#include "vkQueryUtil.hpp"
#include "vkTypeUtil.hpp"
#include "vkCmdUtil.hpp"

#include "deUniquePtr.hpp"
#include "deStringUtil.hpp"

#include <string>
#include <vector>

using namespace vk;

namespace vkt
{
namespace sparse
{
namespace
{

class BufferSparseBindingCase : public TestCase
{
public:
					BufferSparseBindingCase	(tcu::TestContext&	testCtx,
											 const std::string&	name,
											 const std::string&	description,
											 const deUint32		bufferSize,
											 const bool			useDeviceGroups);

	TestInstance*	createInstance			(Context&			context) const;
	virtual void	checkSupport			(Context&			context) const;

private:
	const deUint32	m_bufferSize;
	const bool		m_useDeviceGroups;
};

BufferSparseBindingCase::BufferSparseBindingCase (tcu::TestContext&		testCtx,
												  const std::string&	name,
												  const std::string&	description,
												  const deUint32		bufferSize,
												  const bool			useDeviceGroups)
	: TestCase			(testCtx, name, description)
	, m_bufferSize		(bufferSize)
	, m_useDeviceGroups	(useDeviceGroups)
{
}

void BufferSparseBindingCase::checkSupport (Context& context) const
{
	context.requireDeviceCoreFeature(DEVICE_CORE_FEATURE_SPARSE_BINDING);
}

class BufferSparseBindingInstance : public SparseResourcesBaseInstance
{
public:
					BufferSparseBindingInstance (Context&		context,
												 const deUint32	bufferSize,
												 const bool		useDeviceGroups);

	tcu::TestStatus	iterate						(void);

private:
	const deUint32	m_bufferSize;
	const deUint32	m_useDeviceGroups;
};

BufferSparseBindingInstance::BufferSparseBindingInstance (Context&			context,
														  const deUint32	bufferSize,
														  const bool		useDeviceGroups)

	: SparseResourcesBaseInstance	(context, useDeviceGroups)
	, m_bufferSize					(bufferSize)
	, m_useDeviceGroups				(useDeviceGroups)
{
}

tcu::TestStatus BufferSparseBindingInstance::iterate (void)
{
	const InstanceInterface&	instance		= m_context.getInstanceInterface();
	{
		// Create logical device supporting both sparse and compute operations
		QueueRequirementsVec queueRequirements;
		queueRequirements.push_back(QueueRequirements(VK_QUEUE_SPARSE_BINDING_BIT, 1u));
		queueRequirements.push_back(QueueRequirements(VK_QUEUE_COMPUTE_BIT, 1u));

		createDeviceSupportingQueues(queueRequirements);
	}
	const vk::VkPhysicalDevice&	physicalDevice	= getPhysicalDevice();

	const DeviceInterface&	deviceInterface	= getDeviceInterface();
	const Queue&			sparseQueue		= getQueue(VK_QUEUE_SPARSE_BINDING_BIT, 0);
	const Queue&			computeQueue	= getQueue(VK_QUEUE_COMPUTE_BIT, 0);

	// Go through all physical devices
	for (deUint32 physDevID = 0; physDevID < m_numPhysicalDevices; physDevID++)
	{
		const deUint32	firstDeviceID	= physDevID;
		const deUint32	secondDeviceID	= (firstDeviceID + 1) % m_numPhysicalDevices;

		VkBufferCreateInfo bufferCreateInfo;

		bufferCreateInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;	// VkStructureType		sType;
		bufferCreateInfo.pNext = DE_NULL;								// const void*			pNext;
		bufferCreateInfo.flags = VK_BUFFER_CREATE_SPARSE_BINDING_BIT;	// VkBufferCreateFlags	flags;
		bufferCreateInfo.size = m_bufferSize;							// VkDeviceSize			size;
		bufferCreateInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT |
			VK_BUFFER_USAGE_TRANSFER_DST_BIT;							// VkBufferUsageFlags	usage;
		bufferCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;		// VkSharingMode		sharingMode;
		bufferCreateInfo.queueFamilyIndexCount = 0u;					// deUint32				queueFamilyIndexCount;
		bufferCreateInfo.pQueueFamilyIndices = DE_NULL;					// const deUint32*		pQueueFamilyIndices;

		const deUint32 queueFamilyIndices[] = { sparseQueue.queueFamilyIndex, computeQueue.queueFamilyIndex };

		if (sparseQueue.queueFamilyIndex != computeQueue.queueFamilyIndex)
		{
			bufferCreateInfo.sharingMode = VK_SHARING_MODE_CONCURRENT;	// VkSharingMode		sharingMode;
			bufferCreateInfo.queueFamilyIndexCount = 2u;				// deUint32				queueFamilyIndexCount;
			bufferCreateInfo.pQueueFamilyIndices = queueFamilyIndices;	// const deUint32*		pQueueFamilyIndices;
		}

		// Create sparse buffer
		const Unique<VkBuffer> sparseBuffer(createBuffer(deviceInterface, getDevice(), &bufferCreateInfo));

		// Create sparse buffer memory bind semaphore
		const Unique<VkSemaphore> bufferMemoryBindSemaphore(createSemaphore(deviceInterface, getDevice()));

		const VkMemoryRequirements bufferMemRequirement = getBufferMemoryRequirements(deviceInterface, getDevice(), *sparseBuffer);

		if (bufferMemRequirement.size > getPhysicalDeviceProperties(instance, physicalDevice).limits.sparseAddressSpaceSize)
			TCU_THROW(NotSupportedError, "Required memory size for sparse resources exceeds device limits");

		DE_ASSERT((bufferMemRequirement.size % bufferMemRequirement.alignment) == 0);

		Move<VkDeviceMemory> sparseMemoryAllocation;

		{
			std::vector<VkSparseMemoryBind>	sparseMemoryBinds;
			const deUint32					numSparseBinds = static_cast<deUint32>(bufferMemRequirement.size / bufferMemRequirement.alignment);
			const deUint32					memoryType	   = findMatchingMemoryType(instance, getPhysicalDevice(secondDeviceID), bufferMemRequirement, MemoryRequirement::Any);

			if (memoryType == NO_MATCH_FOUND)
				return tcu::TestStatus::fail("No matching memory type found");

			if (firstDeviceID != secondDeviceID)
			{
				VkPeerMemoryFeatureFlags	peerMemoryFeatureFlags = (VkPeerMemoryFeatureFlags)0;
				const deUint32				heapIndex = getHeapIndexForMemoryType(instance, getPhysicalDevice(secondDeviceID), memoryType);
				deviceInterface.getDeviceGroupPeerMemoryFeatures(getDevice(), heapIndex, firstDeviceID, secondDeviceID, &peerMemoryFeatureFlags);

				if (((peerMemoryFeatureFlags & VK_PEER_MEMORY_FEATURE_COPY_SRC_BIT) == 0) ||
					((peerMemoryFeatureFlags & VK_PEER_MEMORY_FEATURE_COPY_DST_BIT) == 0))
				{
					TCU_THROW(NotSupportedError, "Peer memory does not support COPY_SRC and COPY_DST");
				}
			}

			{
				const VkMemoryAllocateInfo allocateInfo =
				{
					VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,			// VkStructureType    sType;
					DE_NULL,										// const void*        pNext;
					bufferMemRequirement.size,						// VkDeviceSize       allocationSize;
					memoryType,										// uint32_t           memoryTypeIndex;
				};

				sparseMemoryAllocation = allocateMemory(deviceInterface, getDevice(), &allocateInfo);
			}

			for (deUint32 sparseBindNdx = 0; sparseBindNdx < numSparseBinds; ++sparseBindNdx)
			{
				const VkSparseMemoryBind sparseMemoryBind =
				{
					bufferMemRequirement.alignment * sparseBindNdx,			// VkDeviceSize               resourceOffset;
					bufferMemRequirement.alignment,							// VkDeviceSize               size;
					*sparseMemoryAllocation,								// VkDeviceMemory             memory;
					bufferMemRequirement.alignment * sparseBindNdx,			// VkDeviceSize               memoryOffset;
					(VkSparseMemoryBindFlags)0,								// VkSparseMemoryBindFlags    flags;
				};
				sparseMemoryBinds.push_back(sparseMemoryBind);
			}

			const VkSparseBufferMemoryBindInfo sparseBufferBindInfo = makeSparseBufferMemoryBindInfo(*sparseBuffer, numSparseBinds, &sparseMemoryBinds[0]);

			const VkDeviceGroupBindSparseInfo devGroupBindSparseInfo =
			{
				VK_STRUCTURE_TYPE_DEVICE_GROUP_BIND_SPARSE_INFO_KHR,	//VkStructureType							sType;
				DE_NULL,												//const void*								pNext;
				firstDeviceID,											//deUint32									resourceDeviceIndex;
				secondDeviceID,											//deUint32									memoryDeviceIndex;
			};

			const VkBindSparseInfo bindSparseInfo =
			{
				VK_STRUCTURE_TYPE_BIND_SPARSE_INFO,						//VkStructureType							sType;
				m_useDeviceGroups ? &devGroupBindSparseInfo : DE_NULL,	//const void*								pNext;
				0u,														//deUint32									waitSemaphoreCount;
				DE_NULL,												//const VkSemaphore*						pWaitSemaphores;
				1u,														//deUint32									bufferBindCount;
				&sparseBufferBindInfo,									//const VkSparseBufferMemoryBindInfo*		pBufferBinds;
				0u,														//deUint32									imageOpaqueBindCount;
				DE_NULL,												//const VkSparseImageOpaqueMemoryBindInfo*	pImageOpaqueBinds;
				0u,														//deUint32									imageBindCount;
				DE_NULL,												//const VkSparseImageMemoryBindInfo*		pImageBinds;
				1u,														//deUint32									signalSemaphoreCount;
				&bufferMemoryBindSemaphore.get()						//const VkSemaphore*						pSignalSemaphores;
			};

			// Submit sparse bind commands for execution
			VK_CHECK(deviceInterface.queueBindSparse(sparseQueue.queueHandle, 1u, &bindSparseInfo, DE_NULL));
		}

		// Create command buffer for transfer oparations
		const Unique<VkCommandPool>		commandPool(makeCommandPool(deviceInterface, getDevice(), computeQueue.queueFamilyIndex));
		const Unique<VkCommandBuffer>	commandBuffer(allocateCommandBuffer(deviceInterface, getDevice(), *commandPool, VK_COMMAND_BUFFER_LEVEL_PRIMARY));

		// Start recording transfer commands
		beginCommandBuffer(deviceInterface, *commandBuffer);

		const VkBufferCreateInfo		inputBufferCreateInfo = makeBufferCreateInfo(m_bufferSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT);
		const Unique<VkBuffer>			inputBuffer(createBuffer(deviceInterface, getDevice(), &inputBufferCreateInfo));
		const de::UniquePtr<Allocation>	inputBufferAlloc(bindBuffer(deviceInterface, getDevice(), getAllocator(), *inputBuffer, MemoryRequirement::HostVisible));

		std::vector<deUint8> referenceData;
		referenceData.resize(m_bufferSize);

		for (deUint32 valueNdx = 0; valueNdx < m_bufferSize; ++valueNdx)
		{
			referenceData[valueNdx] = static_cast<deUint8>((valueNdx % bufferMemRequirement.alignment) + 1u);
		}

		deMemcpy(inputBufferAlloc->getHostPtr(), &referenceData[0], m_bufferSize);

		flushAlloc(deviceInterface, getDevice(), *inputBufferAlloc);

		{
			const VkBufferMemoryBarrier inputBufferBarrier
				= makeBufferMemoryBarrier(VK_ACCESS_HOST_WRITE_BIT,
					VK_ACCESS_TRANSFER_READ_BIT,
					*inputBuffer,
					0u,
					m_bufferSize);

			deviceInterface.cmdPipelineBarrier(*commandBuffer, VK_PIPELINE_STAGE_HOST_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0u, 0u, DE_NULL, 1u, &inputBufferBarrier, 0u, DE_NULL);
		}

		{
			const VkBufferCopy bufferCopy = makeBufferCopy(0u, 0u, m_bufferSize);

			deviceInterface.cmdCopyBuffer(*commandBuffer, *inputBuffer, *sparseBuffer, 1u, &bufferCopy);
		}

		{
			const VkBufferMemoryBarrier sparseBufferBarrier
				= makeBufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
					VK_ACCESS_TRANSFER_READ_BIT,
					*sparseBuffer,
					0u,
					m_bufferSize);

			deviceInterface.cmdPipelineBarrier(*commandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0u, 0u, DE_NULL, 1u, &sparseBufferBarrier, 0u, DE_NULL);
		}

		const VkBufferCreateInfo		outputBufferCreateInfo = makeBufferCreateInfo(m_bufferSize, VK_BUFFER_USAGE_TRANSFER_DST_BIT);
		const Unique<VkBuffer>			outputBuffer(createBuffer(deviceInterface, getDevice(), &outputBufferCreateInfo));
		const de::UniquePtr<Allocation>	outputBufferAlloc(bindBuffer(deviceInterface, getDevice(), getAllocator(), *outputBuffer, MemoryRequirement::HostVisible));

		{
			const VkBufferCopy bufferCopy = makeBufferCopy(0u, 0u, m_bufferSize);

			deviceInterface.cmdCopyBuffer(*commandBuffer, *sparseBuffer, *outputBuffer, 1u, &bufferCopy);
		}

		{
			const VkBufferMemoryBarrier outputBufferBarrier
				= makeBufferMemoryBarrier(VK_ACCESS_TRANSFER_WRITE_BIT,
					VK_ACCESS_HOST_READ_BIT,
					*outputBuffer,
					0u,
					m_bufferSize);

			deviceInterface.cmdPipelineBarrier(*commandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_HOST_BIT, 0u, 0u, DE_NULL, 1u, &outputBufferBarrier, 0u, DE_NULL);
		}

		// End recording transfer commands
		endCommandBuffer(deviceInterface, *commandBuffer);

		const VkPipelineStageFlags waitStageBits[] = { VK_PIPELINE_STAGE_TRANSFER_BIT };

		// Submit transfer commands for execution and wait for completion
		// In case of device groups, submit on the physical device with the resource
		submitCommandsAndWait(deviceInterface, getDevice(), computeQueue.queueHandle, *commandBuffer, 1u, &bufferMemoryBindSemaphore.get(),
			waitStageBits, 0, DE_NULL, m_useDeviceGroups, firstDeviceID);

		// Retrieve data from output buffer to host memory
		invalidateAlloc(deviceInterface, getDevice(), *outputBufferAlloc);

		const deUint8* outputData = static_cast<const deUint8*>(outputBufferAlloc->getHostPtr());

		// Wait for sparse queue to become idle
		deviceInterface.queueWaitIdle(sparseQueue.queueHandle);

		// Compare output data with reference data
		if (deMemCmp(&referenceData[0], outputData, m_bufferSize) != 0)
			return tcu::TestStatus::fail("Failed");
	}
	return tcu::TestStatus::pass("Passed");
}

TestInstance* BufferSparseBindingCase::createInstance (Context& context) const
{
	return new BufferSparseBindingInstance(context, m_bufferSize, m_useDeviceGroups);
}

} // anonymous ns

void addBufferSparseBindingTests (tcu::TestCaseGroup* group, const bool useDeviceGroups)
{
	group->addChild(new BufferSparseBindingCase(group->getTestContext(), "buffer_size_2_10", "", 1 << 10, useDeviceGroups));
	group->addChild(new BufferSparseBindingCase(group->getTestContext(), "buffer_size_2_12", "", 1 << 12, useDeviceGroups));
	group->addChild(new BufferSparseBindingCase(group->getTestContext(), "buffer_size_2_16", "", 1 << 16, useDeviceGroups));
	group->addChild(new BufferSparseBindingCase(group->getTestContext(), "buffer_size_2_17", "", 1 << 17, useDeviceGroups));
	group->addChild(new BufferSparseBindingCase(group->getTestContext(), "buffer_size_2_20", "", 1 << 20, useDeviceGroups));
	group->addChild(new BufferSparseBindingCase(group->getTestContext(), "buffer_size_2_24", "", 1 << 24, useDeviceGroups));
}

} // sparse
} // vkt