external/vulkancts/modules/vulkan/sparse_resources/vktSparseResourcesImageAlignedMipSize.cpp - third_party/vulkan-cts - Git at Google

 /*------------------------------------------------------------------------
  * Vulkan Conformance Tests
  * ------------------------
  *
  * Copyright (c) 2017 The Khronos Group Inc.
  * Copyright (c) 2017 Google 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  vktSparseResourcesImageAlignedMipSize.cpp
  * \brief Aligned mip size 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 "vkBuilderUtil.hpp"
 #include "vkImageUtil.hpp"
 #include "vkQueryUtil.hpp"
 #include "vkTypeUtil.hpp"

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

 #include <string>
 #include <vector>

 using namespace vk;

 namespace vkt
 {
 namespace sparse
 {
 namespace
 {

 class ImageAlignedMipSizeCase : public TestCase
 {
 public:
 	ImageAlignedMipSizeCase			(tcu::TestContext&	testCtx,
 									 const std::string&	name,
 									 const std::string&	description,
 									 const ImageType	imageType,
 									 const tcu::UVec3&	imageSize,
 									 const VkFormat		format);

 	void			initPrograms	(SourceCollections&	sourceCollections) const {DE_UNREF(sourceCollections);};
 	TestInstance*	createInstance	(Context&			context) const;
 	virtual void	checkSupport	(Context&			context) const;

 private:
 	const ImageType		m_imageType;
 	const tcu::UVec3	m_imageSize;
 	const VkFormat		m_format;
 };

 ImageAlignedMipSizeCase::ImageAlignedMipSizeCase	(tcu::TestContext&	testCtx,
 													 const std::string&	name,
 													 const std::string&	description,
 													 const ImageType	imageType,
 													 const tcu::UVec3&	imageSize,
 													 const VkFormat		format)
 	: TestCase		(testCtx, name, description)
 	, m_imageType	(imageType)
 	, m_imageSize	(imageSize)
 	, m_format		(format)
 {
 }

 void ImageAlignedMipSizeCase::checkSupport (Context& context) const
 {
 	const InstanceInterface&	instance		= context.getInstanceInterface();
 	const VkPhysicalDevice		physicalDevice	= context.getPhysicalDevice();

 	// Check the image size does not exceed device limits
 	if (!isImageSizeSupported(instance, physicalDevice, m_imageType, m_imageSize))
 		TCU_THROW(NotSupportedError, "Image size not supported for device");

 	// Check if device supports sparse operations for image type
 	if (!checkSparseSupportForImageType(instance, physicalDevice, m_imageType))
 		TCU_THROW(NotSupportedError, "Sparse residency for image type is not supported");
 }

 class ImageAlignedMipSizeInstance : public SparseResourcesBaseInstance
 {
 public:
 	ImageAlignedMipSizeInstance	(Context&			context,
 								 const ImageType	imageType,
 								 const tcu::UVec3&	imageSize,
 								 const VkFormat		format);

 	tcu::TestStatus	iterate		(void);

 private:
 	const ImageType		m_imageType;
 	const tcu::UVec3	m_imageSize;
 	const VkFormat		m_format;
 };

 ImageAlignedMipSizeInstance::ImageAlignedMipSizeInstance	(Context&			context,
 															 const ImageType	imageType,
 															 const tcu::UVec3&	imageSize,
 															 const VkFormat		format)
 	: SparseResourcesBaseInstance	(context)
 	, m_imageType					(imageType)
 	, m_imageSize					(imageSize)
 	, m_format						(format)
 {
 }

 tcu::TestStatus ImageAlignedMipSizeInstance::iterate (void)
 {
 	const InstanceInterface&				instance					= m_context.getInstanceInterface();
 	const VkPhysicalDevice					physicalDevice				= m_context.getPhysicalDevice();
 	const VkPhysicalDeviceProperties		physicalDeviceProperties	= getPhysicalDeviceProperties(instance, physicalDevice);
 	VkImageCreateInfo						imageCreateInfo;
 	VkSparseImageMemoryRequirements			aspectRequirements;
 	VkExtent3D								imageGranularity;
 	const VkPhysicalDeviceSparseProperties	sparseProperties			= physicalDeviceProperties.sparseProperties;
 	const PlanarFormatDescription			formatDescription			= getPlanarFormatDescription(m_format);


 	imageCreateInfo.sType					= VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
 	imageCreateInfo.pNext					= DE_NULL;
 	imageCreateInfo.flags					= VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT | VK_IMAGE_CREATE_SPARSE_BINDING_BIT;
 	imageCreateInfo.imageType				= mapImageType(m_imageType);
 	imageCreateInfo.format					= m_format;
 	imageCreateInfo.extent					= makeExtent3D(getLayerSize(m_imageType, m_imageSize));
 	imageCreateInfo.arrayLayers				= getNumLayers(m_imageType, m_imageSize);
 	imageCreateInfo.samples					= VK_SAMPLE_COUNT_1_BIT;
 	imageCreateInfo.tiling					= VK_IMAGE_TILING_OPTIMAL;
 	imageCreateInfo.initialLayout			= VK_IMAGE_LAYOUT_UNDEFINED;
 	imageCreateInfo.usage					= VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
 											  VK_IMAGE_USAGE_STORAGE_BIT;
 	imageCreateInfo.sharingMode				= VK_SHARING_MODE_EXCLUSIVE;
 	imageCreateInfo.queueFamilyIndexCount	= 0u;
 	imageCreateInfo.pQueueFamilyIndices		= DE_NULL;

 	if (m_imageType == IMAGE_TYPE_CUBE || m_imageType == IMAGE_TYPE_CUBE_ARRAY)
 	{
 		imageCreateInfo.flags |= VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
 	}

 	// Check if device supports sparse operations for image format
 	if (!checkSparseSupportForImageFormat(instance, physicalDevice, imageCreateInfo))
 		TCU_THROW(NotSupportedError, "The image format does not support sparse operations");

 	{
 		VkImageFormatProperties imageFormatProperties;

 		if (instance.getPhysicalDeviceImageFormatProperties(physicalDevice,
 			imageCreateInfo.format,
 			imageCreateInfo.imageType,
 			imageCreateInfo.tiling,
 			imageCreateInfo.usage,
 			imageCreateInfo.flags,
 			&imageFormatProperties) == VK_ERROR_FORMAT_NOT_SUPPORTED)
 		{
 			TCU_THROW(NotSupportedError, "Image format does not support sparse operations");
 		}

 		imageCreateInfo.mipLevels = getMipmapCount(m_format, formatDescription, imageFormatProperties, imageCreateInfo.extent);
 	}

 	{
 		QueueRequirementsVec queueRequirements;
 		queueRequirements.push_back(QueueRequirements(VK_QUEUE_SPARSE_BINDING_BIT, 1u));

 		createDeviceSupportingQueues(queueRequirements);
 	}

 	{
 		const DeviceInterface&								deviceInterface				= getDeviceInterface();

 		// Create sparse image
 		const Unique<VkImage>								imageSparse					(createImage(deviceInterface, getDevice(), &imageCreateInfo));

 		// Get sparse image sparse memory requirements
 		const std::vector<VkSparseImageMemoryRequirements>	sparseMemoryRequirements	= getImageSparseMemoryRequirements(deviceInterface, getDevice(), *imageSparse);

 		DE_ASSERT(sparseMemoryRequirements.size() != 0);

 		const deUint32										colorAspectIndex			= getSparseAspectRequirementsIndex(sparseMemoryRequirements, VK_IMAGE_ASPECT_COLOR_BIT);

 		if (colorAspectIndex == NO_MATCH_FOUND)
 			TCU_THROW(NotSupportedError, "Not supported image aspect - the test supports currently only VK_IMAGE_ASPECT_COLOR_BIT");

 		aspectRequirements	= sparseMemoryRequirements[colorAspectIndex];
 		imageGranularity	= aspectRequirements.formatProperties.imageGranularity;
 	}

 	if (sparseProperties.residencyAlignedMipSize)
 	{
 		deUint32	lod	= 0;
 		VkExtent3D	extent;

 		do
 		{
 			extent = mipLevelExtents(imageCreateInfo.extent, lod);
 			if (   extent.width  % imageGranularity.width  != 0
 				|| extent.height % imageGranularity.height != 0
 				|| extent.depth  % imageGranularity.depth  != 0)
 			{
 				break;
 			}

 			lod++;
 		}
 		while (extent.width != 1 || extent.height != 1 || extent.depth != 1);

 		if (lod != aspectRequirements.imageMipTailFirstLod)
 			return tcu::TestStatus::fail("Unexpected first LOD for mip tail.");
 		else
 			return tcu::TestStatus::pass("pass");
 	}
 	else if (aspectRequirements.formatProperties.flags & VK_SPARSE_IMAGE_FORMAT_ALIGNED_MIP_SIZE_BIT)
 	{
 		return tcu::TestStatus::fail("Aligned mip size flag doesn't match in device and image properties.");
 	}
 	else
 	{
 		return tcu::TestStatus::pass("Aligned mip size not enabled.");
 	}
 }

 TestInstance* ImageAlignedMipSizeCase::createInstance (Context& context) const
 {
 	return new ImageAlignedMipSizeInstance(context, m_imageType, m_imageSize, m_format);
 }

 } // anonymous ns

 tcu::TestCaseGroup* createImageAlignedMipSizeTests (tcu::TestContext& testCtx)
 {
 	de::MovePtr<tcu::TestCaseGroup> testGroup(new tcu::TestCaseGroup(testCtx, "aligned_mip_size", "Aligned mip size"));

 	const std::vector<TestImageParameters> imageParameters =
 	{
 		{ IMAGE_TYPE_2D,		 { tcu::UVec3(512u, 256u, 1u) },	getTestFormats(IMAGE_TYPE_2D) },
 		{ IMAGE_TYPE_2D_ARRAY,	 { tcu::UVec3(512u, 256u, 6u) },	getTestFormats(IMAGE_TYPE_2D_ARRAY) },
 		{ IMAGE_TYPE_CUBE,		 { tcu::UVec3(256u, 256u, 1u) },	getTestFormats(IMAGE_TYPE_CUBE) },
 		{ IMAGE_TYPE_CUBE_ARRAY, { tcu::UVec3(256u, 256u, 6u) },	getTestFormats(IMAGE_TYPE_CUBE_ARRAY) },
 		{ IMAGE_TYPE_3D,		 { tcu::UVec3(512u, 256u, 16u) },	getTestFormats(IMAGE_TYPE_3D) }
 	};

 	for (size_t imageTypeNdx = 0; imageTypeNdx < imageParameters.size(); ++imageTypeNdx)
 	{
 		const ImageType					imageType = imageParameters[imageTypeNdx].imageType;
 		de::MovePtr<tcu::TestCaseGroup> imageTypeGroup(new tcu::TestCaseGroup(testCtx, getImageTypeName(imageType).c_str(), ""));

 		for (size_t formatNdx = 0; formatNdx < imageParameters[imageTypeNdx].formats.size(); ++formatNdx)
 		{
 			VkFormat			format				= imageParameters[imageTypeNdx].formats[formatNdx].format;
 			tcu::UVec3			imageSizeAlignment	= getImageSizeAlignment(format);
 			const std::string	name				= getImageFormatID(format);
 			const tcu::UVec3	imageSize			= imageParameters[imageTypeNdx].imageSizes[0];

 			// skip test for images with odd sizes for some YCbCr formats
 			if ((imageSize.x() % imageSizeAlignment.x()) != 0)
 				continue;
 			if ((imageSize.y() % imageSizeAlignment.y()) != 0)
 				continue;

 			imageTypeGroup->addChild(new ImageAlignedMipSizeCase(testCtx, name.c_str(), "", imageType, imageSize, format));
 		}
 		testGroup->addChild(imageTypeGroup.release());
 	}

 	return testGroup.release();
 }

 } // sparse
 } // vkt
	/*------------------------------------------------------------------------
	* Vulkan Conformance Tests
	* ------------------------
	*
	* Copyright (c) 2017 The Khronos Group Inc.
	* Copyright (c) 2017 Google 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 vktSparseResourcesImageAlignedMipSize.cpp
	* \brief Aligned mip size 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 "vkBuilderUtil.hpp"
	#include "vkImageUtil.hpp"
	#include "vkQueryUtil.hpp"
	#include "vkTypeUtil.hpp"

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

	#include <string>
	#include <vector>

	using namespace vk;

	namespace vkt
	{
	namespace sparse
	{
	namespace
	{

	class ImageAlignedMipSizeCase : public TestCase
	{
	public:
	ImageAlignedMipSizeCase (tcu::TestContext& testCtx,
	const std::string& name,
	const std::string& description,
	const ImageType imageType,
	const tcu::UVec3& imageSize,
	const VkFormat format);

	void initPrograms (SourceCollections& sourceCollections) const {DE_UNREF(sourceCollections);};
	TestInstance* createInstance (Context& context) const;
	virtual void checkSupport (Context& context) const;

	private:
	const ImageType m_imageType;
	const tcu::UVec3 m_imageSize;
	const VkFormat m_format;
	};

	ImageAlignedMipSizeCase::ImageAlignedMipSizeCase (tcu::TestContext& testCtx,
	const std::string& name,
	const std::string& description,
	const ImageType imageType,
	const tcu::UVec3& imageSize,
	const VkFormat format)
	: TestCase (testCtx, name, description)
	, m_imageType (imageType)
	, m_imageSize (imageSize)
	, m_format (format)
	{
	}

	void ImageAlignedMipSizeCase::checkSupport (Context& context) const
	{
	const InstanceInterface& instance = context.getInstanceInterface();
	const VkPhysicalDevice physicalDevice = context.getPhysicalDevice();

	// Check the image size does not exceed device limits
	if (!isImageSizeSupported(instance, physicalDevice, m_imageType, m_imageSize))
	TCU_THROW(NotSupportedError, "Image size not supported for device");

	// Check if device supports sparse operations for image type
	if (!checkSparseSupportForImageType(instance, physicalDevice, m_imageType))
	TCU_THROW(NotSupportedError, "Sparse residency for image type is not supported");
	}

	class ImageAlignedMipSizeInstance : public SparseResourcesBaseInstance
	{
	public:
	ImageAlignedMipSizeInstance (Context& context,
	const ImageType imageType,
	const tcu::UVec3& imageSize,
	const VkFormat format);

	tcu::TestStatus iterate (void);

	private:
	const ImageType m_imageType;
	const tcu::UVec3 m_imageSize;
	const VkFormat m_format;
	};

	ImageAlignedMipSizeInstance::ImageAlignedMipSizeInstance (Context& context,
	const ImageType imageType,
	const tcu::UVec3& imageSize,
	const VkFormat format)
	: SparseResourcesBaseInstance (context)
	, m_imageType (imageType)
	, m_imageSize (imageSize)
	, m_format (format)
	{
	}

	tcu::TestStatus ImageAlignedMipSizeInstance::iterate (void)
	{
	const InstanceInterface& instance = m_context.getInstanceInterface();
	const VkPhysicalDevice physicalDevice = m_context.getPhysicalDevice();
	const VkPhysicalDeviceProperties physicalDeviceProperties = getPhysicalDeviceProperties(instance, physicalDevice);
	VkImageCreateInfo imageCreateInfo;
	VkSparseImageMemoryRequirements aspectRequirements;
	VkExtent3D imageGranularity;
	const VkPhysicalDeviceSparseProperties sparseProperties = physicalDeviceProperties.sparseProperties;
	const PlanarFormatDescription formatDescription = getPlanarFormatDescription(m_format);


	imageCreateInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
	imageCreateInfo.pNext = DE_NULL;
	imageCreateInfo.flags = VK_IMAGE_CREATE_SPARSE_RESIDENCY_BIT \| VK_IMAGE_CREATE_SPARSE_BINDING_BIT;
	imageCreateInfo.imageType = mapImageType(m_imageType);
	imageCreateInfo.format = m_format;
	imageCreateInfo.extent = makeExtent3D(getLayerSize(m_imageType, m_imageSize));
	imageCreateInfo.arrayLayers = getNumLayers(m_imageType, m_imageSize);
	imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
	imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
	imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
	imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT \|
	VK_IMAGE_USAGE_STORAGE_BIT;
	imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
	imageCreateInfo.queueFamilyIndexCount = 0u;
	imageCreateInfo.pQueueFamilyIndices = DE_NULL;

	if (m_imageType == IMAGE_TYPE_CUBE \|\| m_imageType == IMAGE_TYPE_CUBE_ARRAY)
	{
	imageCreateInfo.flags \|= VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
	}

	// Check if device supports sparse operations for image format
	if (!checkSparseSupportForImageFormat(instance, physicalDevice, imageCreateInfo))
	TCU_THROW(NotSupportedError, "The image format does not support sparse operations");

	{
	VkImageFormatProperties imageFormatProperties;

	if (instance.getPhysicalDeviceImageFormatProperties(physicalDevice,
	imageCreateInfo.format,
	imageCreateInfo.imageType,
	imageCreateInfo.tiling,
	imageCreateInfo.usage,
	imageCreateInfo.flags,
	&imageFormatProperties) == VK_ERROR_FORMAT_NOT_SUPPORTED)
	{
	TCU_THROW(NotSupportedError, "Image format does not support sparse operations");
	}

	imageCreateInfo.mipLevels = getMipmapCount(m_format, formatDescription, imageFormatProperties, imageCreateInfo.extent);
	}

	{
	QueueRequirementsVec queueRequirements;
	queueRequirements.push_back(QueueRequirements(VK_QUEUE_SPARSE_BINDING_BIT, 1u));

	createDeviceSupportingQueues(queueRequirements);
	}

	{
	const DeviceInterface& deviceInterface = getDeviceInterface();

	// Create sparse image
	const Unique<VkImage> imageSparse (createImage(deviceInterface, getDevice(), &imageCreateInfo));

	// Get sparse image sparse memory requirements
	const std::vector<VkSparseImageMemoryRequirements> sparseMemoryRequirements = getImageSparseMemoryRequirements(deviceInterface, getDevice(), *imageSparse);

	DE_ASSERT(sparseMemoryRequirements.size() != 0);

	const deUint32 colorAspectIndex = getSparseAspectRequirementsIndex(sparseMemoryRequirements, VK_IMAGE_ASPECT_COLOR_BIT);

	if (colorAspectIndex == NO_MATCH_FOUND)
	TCU_THROW(NotSupportedError, "Not supported image aspect - the test supports currently only VK_IMAGE_ASPECT_COLOR_BIT");

	aspectRequirements = sparseMemoryRequirements[colorAspectIndex];
	imageGranularity = aspectRequirements.formatProperties.imageGranularity;
	}

	if (sparseProperties.residencyAlignedMipSize)
	{
	deUint32 lod = 0;
	VkExtent3D extent;

	do
	{
	extent = mipLevelExtents(imageCreateInfo.extent, lod);
	if ( extent.width % imageGranularity.width != 0
	\|\| extent.height % imageGranularity.height != 0
	\|\| extent.depth % imageGranularity.depth != 0)
	{
	break;
	}

	lod++;
	}
	while (extent.width != 1 \|\| extent.height != 1 \|\| extent.depth != 1);

	if (lod != aspectRequirements.imageMipTailFirstLod)
	return tcu::TestStatus::fail("Unexpected first LOD for mip tail.");
	else
	return tcu::TestStatus::pass("pass");
	}
	else if (aspectRequirements.formatProperties.flags & VK_SPARSE_IMAGE_FORMAT_ALIGNED_MIP_SIZE_BIT)
	{
	return tcu::TestStatus::fail("Aligned mip size flag doesn't match in device and image properties.");
	}
	else
	{
	return tcu::TestStatus::pass("Aligned mip size not enabled.");
	}
	}

	TestInstance* ImageAlignedMipSizeCase::createInstance (Context& context) const
	{
	return new ImageAlignedMipSizeInstance(context, m_imageType, m_imageSize, m_format);
	}

	} // anonymous ns

	tcu::TestCaseGroup* createImageAlignedMipSizeTests (tcu::TestContext& testCtx)
	{
	de::MovePtr<tcu::TestCaseGroup> testGroup(new tcu::TestCaseGroup(testCtx, "aligned_mip_size", "Aligned mip size"));

	const std::vector<TestImageParameters> imageParameters =
	{
	{ IMAGE_TYPE_2D, { tcu::UVec3(512u, 256u, 1u) }, getTestFormats(IMAGE_TYPE_2D) },
	{ IMAGE_TYPE_2D_ARRAY, { tcu::UVec3(512u, 256u, 6u) }, getTestFormats(IMAGE_TYPE_2D_ARRAY) },
	{ IMAGE_TYPE_CUBE, { tcu::UVec3(256u, 256u, 1u) }, getTestFormats(IMAGE_TYPE_CUBE) },
	{ IMAGE_TYPE_CUBE_ARRAY, { tcu::UVec3(256u, 256u, 6u) }, getTestFormats(IMAGE_TYPE_CUBE_ARRAY) },
	{ IMAGE_TYPE_3D, { tcu::UVec3(512u, 256u, 16u) }, getTestFormats(IMAGE_TYPE_3D) }
	};

	for (size_t imageTypeNdx = 0; imageTypeNdx < imageParameters.size(); ++imageTypeNdx)
	{
	const ImageType imageType = imageParameters[imageTypeNdx].imageType;
	de::MovePtr<tcu::TestCaseGroup> imageTypeGroup(new tcu::TestCaseGroup(testCtx, getImageTypeName(imageType).c_str(), ""));

	for (size_t formatNdx = 0; formatNdx < imageParameters[imageTypeNdx].formats.size(); ++formatNdx)
	{
	VkFormat format = imageParameters[imageTypeNdx].formats[formatNdx].format;
	tcu::UVec3 imageSizeAlignment = getImageSizeAlignment(format);
	const std::string name = getImageFormatID(format);
	const tcu::UVec3 imageSize = imageParameters[imageTypeNdx].imageSizes[0];

	// skip test for images with odd sizes for some YCbCr formats
	if ((imageSize.x() % imageSizeAlignment.x()) != 0)
	continue;
	if ((imageSize.y() % imageSizeAlignment.y()) != 0)
	continue;

	imageTypeGroup->addChild(new ImageAlignedMipSizeCase(testCtx, name.c_str(), "", imageType, imageSize, format));
	}
	testGroup->addChild(imageTypeGroup.release());
	}

	return testGroup.release();
	}

	} // sparse
	} // vkt