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1 /*------------------------------------------------------------------------
2  * Vulkan Conformance Tests
3  * ------------------------
4  *
5  * Copyright (c) 2015 The Khronos Group Inc.
6  * Copyright (c) 2015 Imagination Technologies Ltd.
7  *
8  * Licensed under the Apache License, Version 2.0 (the "License");
9  * you may not use this file except in compliance with the License.
10  * You may obtain a copy of the License at
11  *
12  *      http://www.apache.org/licenses/LICENSE-2.0
13  *
14  * Unless required by applicable law or agreed to in writing, software
15  * distributed under the License is distributed on an "AS IS" BASIS,
16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17  * See the License for the specific language governing permissions and
18  * limitations under the License.
19  *
20  *//*!
21  * \file
22  * \brief Image View Tests
23  *//*--------------------------------------------------------------------*/
24 
25 #include "vktPipelineImageViewTests.hpp"
26 #include "vktPipelineImageSamplingInstance.hpp"
27 #include "vktPipelineImageUtil.hpp"
28 #include "vktPipelineVertexUtil.hpp"
29 #include "vktTestCase.hpp"
30 #include "vkImageUtil.hpp"
31 #include "vkPrograms.hpp"
32 #include "tcuPlatform.hpp"
33 #include "tcuTextureUtil.hpp"
34 #include "deStringUtil.hpp"
35 #include "deMemory.h"
36 
37 #include <sstream>
38 #include <vector>
39 
40 namespace vkt
41 {
42 namespace pipeline
43 {
44 
45 using namespace vk;
46 using de::MovePtr;
47 
48 namespace
49 {
50 
51 
52 class ImageViewTest : public vkt::TestCase
53 {
54 public:
55 								ImageViewTest					(tcu::TestContext&				testContext,
56 																 const char*					name,
57 																 const char*					description,
58 																 VkImageViewType				imageViewType,
59 																 VkFormat						imageFormat,
60 																 float							samplerLod,
61 																 const VkComponentMapping&		componentMapping,
62 																 const VkImageSubresourceRange&	subresourceRange);
~ImageViewTest(void)63 	virtual						~ImageViewTest					(void) {}
64 
65 	ImageSamplingInstanceParams	getImageSamplingInstanceParams	(VkImageViewType				imageViewType,
66 																 VkFormat						imageFormat,
67 																 float							samplerLod,
68 																 const VkComponentMapping&		componentMapping,
69 																 const VkImageSubresourceRange&	subresourceRange) const;
70 
71 	virtual void				initPrograms					(SourceCollections&				sourceCollections) const;
72 	virtual void				checkSupport					(Context&						context) const;
73 	virtual TestInstance*		createInstance					(Context&						context) const;
74 	static std::string			getGlslSamplerType				(const tcu::TextureFormat&		format,
75 																 VkImageViewType				type);
76 	static tcu::UVec2			getRenderSize					(VkImageViewType				viewType);
77 	static tcu::IVec3			getImageSize					(VkImageViewType				viewType);
78 	static int					getArraySize					(VkImageViewType				viewType);
79 	static int					getNumLevels					(VkImageViewType				viewType);
80 	static tcu::Vec4			swizzle							(tcu::Vec4						inputData,
81 																 VkComponentMapping				componentMapping);
82 private:
83 	VkImageViewType				m_imageViewType;
84 	VkFormat					m_imageFormat;
85 	float						m_samplerLod;
86 	VkComponentMapping			m_componentMapping;
87 	VkImageSubresourceRange		m_subresourceRange;
88 };
89 
ImageViewTest(tcu::TestContext & testContext,const char * name,const char * description,VkImageViewType imageViewType,VkFormat imageFormat,float samplerLod,const VkComponentMapping & componentMapping,const VkImageSubresourceRange & subresourceRange)90 ImageViewTest::ImageViewTest (tcu::TestContext&					testContext,
91 							  const char*						name,
92 							  const char*						description,
93 							  VkImageViewType					imageViewType,
94 							  VkFormat							imageFormat,
95 							  float								samplerLod,
96 							  const VkComponentMapping&			componentMapping,
97 							  const VkImageSubresourceRange&	subresourceRange)
98 
99 	: vkt::TestCase			(testContext, name, description)
100 	, m_imageViewType		(imageViewType)
101 	, m_imageFormat			(imageFormat)
102 	, m_samplerLod			(samplerLod)
103 	, m_componentMapping	(componentMapping)
104 	, m_subresourceRange	(subresourceRange)
105 {
106 }
107 
getImageSamplingInstanceParams(VkImageViewType imageViewType,VkFormat imageFormat,float samplerLod,const VkComponentMapping & componentMapping,const VkImageSubresourceRange & subresourceRange) const108 ImageSamplingInstanceParams ImageViewTest::getImageSamplingInstanceParams (VkImageViewType					imageViewType,
109 																		   VkFormat							imageFormat,
110 																		   float							samplerLod,
111 																		   const VkComponentMapping&		componentMapping,
112 																		   const VkImageSubresourceRange&	subresourceRange) const
113 {
114 	const tcu::UVec2				renderSize		= getRenderSize(imageViewType);
115 	const tcu::IVec3				imageSize		= getImageSize(imageViewType);
116 	const int						arraySize		= getArraySize(imageViewType);
117 	const std::vector<Vertex4Tex4>	vertices		= createTestQuadMosaic(imageViewType);
118 
119 	const VkSamplerCreateInfo		samplerParams	=
120 	{
121 		VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO,								// VkStructureType			sType;
122 		DE_NULL,															// const void*				pNext;
123 		0u,																	// VkSamplerCreateFlags		flags;
124 		VK_FILTER_NEAREST,													// VkFilter					magFilter;
125 		VK_FILTER_NEAREST,													// VkFilter					minFilter;
126 		VK_SAMPLER_MIPMAP_MODE_NEAREST,										// VkSamplerMipmapMode		mipmapMode;
127 		VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,								// VkSamplerAddressMode		addressModeU;
128 		VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,								// VkSamplerAddressMode		addressModeV;
129 		VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,								// VkSamplerAddressMode		addressModeW;
130 		0.0f,																// float					mipLodBias;
131 		VK_FALSE,															// VkBool32					anisotropyEnable;
132 		1.0f,																// float					maxAnisotropy;
133 		false,																// VkBool32					compareEnable;
134 		VK_COMPARE_OP_NEVER,												// VkCompareOp				compareOp;
135 		0.0f,																// float					minLod;
136 		(float)(subresourceRange.levelCount - 1),							// float					maxLod;
137 		getFormatBorderColor(BORDER_COLOR_TRANSPARENT_BLACK, imageFormat),	// VkBorderColor			borderColor;
138 		false																// VkBool32					unnormalizedCoordinates;
139 	};
140 
141 	return ImageSamplingInstanceParams(renderSize, imageViewType, imageFormat, imageSize, arraySize, componentMapping, subresourceRange, samplerParams, samplerLod, vertices);
142 }
143 
checkSupport(Context & context) const144 void ImageViewTest::checkSupport (Context& context) const
145 {
146 	checkSupportImageSamplingInstance(context, getImageSamplingInstanceParams(m_imageViewType, m_imageFormat, m_samplerLod, m_componentMapping, m_subresourceRange));
147 }
148 
swizzle(tcu::Vec4 inputData,VkComponentMapping componentMapping)149 tcu::Vec4 ImageViewTest::swizzle (tcu::Vec4 inputData, VkComponentMapping componentMapping)
150 {
151 	// array map with enum VkComponentSwizzle
152 	const float channelValues[] =
153 	{
154 		-1.0f,
155 		0.0f,
156 		1.0f,
157 		inputData.x(),
158 		inputData.y(),
159 		inputData.z(),
160 		inputData.w(),
161 		-1.0f
162 	};
163 
164 	return tcu::Vec4(channelValues[componentMapping.r],
165 					 channelValues[componentMapping.g],
166 					 channelValues[componentMapping.b],
167 					 channelValues[componentMapping.a]);
168 }
169 
initPrograms(SourceCollections & sourceCollections) const170 void ImageViewTest::initPrograms (SourceCollections& sourceCollections) const
171 {
172 	std::ostringstream				vertexSrc;
173 	std::ostringstream				fragmentSrc;
174 	const char*						texCoordSwizzle	= DE_NULL;
175 	const tcu::TextureFormat		format			= (isCompressedFormat(m_imageFormat)) ? tcu::getUncompressedFormat(mapVkCompressedFormat(m_imageFormat))
176 																						  : mapVkFormat(m_imageFormat);
177 
178 	tcu::Vec4						lookupScale;
179 	tcu::Vec4						lookupBias;
180 
181 	getLookupScaleBias(m_imageFormat, lookupScale, lookupBias);
182 
183 	tcu::Vec4						swizzledScale	= swizzle(lookupScale, m_componentMapping);
184 	tcu::Vec4						swizzledBias	= swizzle(lookupBias, m_componentMapping);
185 
186 	switch (m_imageViewType)
187 	{
188 		case VK_IMAGE_VIEW_TYPE_1D:
189 			texCoordSwizzle = "x";
190 			break;
191 		case VK_IMAGE_VIEW_TYPE_1D_ARRAY:
192 		case VK_IMAGE_VIEW_TYPE_2D:
193 			texCoordSwizzle = "xy";
194 			break;
195 		case VK_IMAGE_VIEW_TYPE_2D_ARRAY:
196 		case VK_IMAGE_VIEW_TYPE_3D:
197 		case VK_IMAGE_VIEW_TYPE_CUBE:
198 			texCoordSwizzle = "xyz";
199 			break;
200 		case VK_IMAGE_VIEW_TYPE_CUBE_ARRAY:
201 			texCoordSwizzle = "xyzw";
202 			break;
203 		default:
204 			DE_ASSERT(false);
205 			break;
206 	}
207 
208 	vertexSrc << "#version 440\n"
209 			  << "layout(location = 0) in vec4 position;\n"
210 			  << "layout(location = 1) in vec4 texCoords;\n"
211 			  << "layout(location = 0) out highp vec4 vtxTexCoords;\n"
212 			  << "out gl_PerVertex {\n"
213 			  << "	vec4 gl_Position;\n"
214 			  << "};\n"
215 			  << "void main (void)\n"
216 			  << "{\n"
217 			  << "	gl_Position = position;\n"
218 			  << "	vtxTexCoords = texCoords;\n"
219 			  << "}\n";
220 
221 	fragmentSrc << "#version 440\n"
222 				<< "layout(set = 0, binding = 0) uniform highp " << getGlslSamplerType(format, m_imageViewType) << " texSampler;\n"
223 				<< "layout(location = 0) in highp vec4 vtxTexCoords;\n"
224 				<< "layout(location = 0) out highp vec4 fragColor;\n"
225 				<< "void main (void)\n"
226 				<< "{\n"
227 				<< "	fragColor = ";
228 
229 	if (m_samplerLod > 0.0f)
230 		fragmentSrc << "textureLod(texSampler, vtxTexCoords." << texCoordSwizzle << ", " << std::fixed <<  m_samplerLod << ")";
231 	else
232 		fragmentSrc << "texture(texSampler, vtxTexCoords." << texCoordSwizzle << ")" << std::fixed;
233 
234 	fragmentSrc << " * vec4" << std::scientific << swizzledScale << " + vec4" << swizzledBias << ";\n"
235 				<< "}\n";
236 
237 	sourceCollections.glslSources.add("tex_vert") << glu::VertexSource(vertexSrc.str());
238 	sourceCollections.glslSources.add("tex_frag") << glu::FragmentSource(fragmentSrc.str());
239 }
240 
createInstance(Context & context) const241 TestInstance* ImageViewTest::createInstance (Context& context) const
242 {
243 	return new ImageSamplingInstance(context, getImageSamplingInstanceParams(m_imageViewType, m_imageFormat, m_samplerLod, m_componentMapping, m_subresourceRange));
244 }
245 
getGlslSamplerType(const tcu::TextureFormat & format,VkImageViewType type)246 std::string ImageViewTest::getGlslSamplerType (const tcu::TextureFormat& format, VkImageViewType type)
247 {
248 	std::ostringstream samplerType;
249 
250 	if (tcu::getTextureChannelClass(format.type) == tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER)
251 		samplerType << "u";
252 	else if (tcu::getTextureChannelClass(format.type) == tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER)
253 		samplerType << "i";
254 
255 	switch (type)
256 	{
257 		case VK_IMAGE_VIEW_TYPE_1D:
258 			samplerType << "sampler1D";
259 			break;
260 
261 		case VK_IMAGE_VIEW_TYPE_1D_ARRAY:
262 			samplerType << "sampler1DArray";
263 			break;
264 
265 		case VK_IMAGE_VIEW_TYPE_2D:
266 			samplerType << "sampler2D";
267 			break;
268 
269 		case VK_IMAGE_VIEW_TYPE_2D_ARRAY:
270 			samplerType << "sampler2DArray";
271 			break;
272 
273 		case VK_IMAGE_VIEW_TYPE_3D:
274 			samplerType << "sampler3D";
275 			break;
276 
277 		case VK_IMAGE_VIEW_TYPE_CUBE:
278 			samplerType << "samplerCube";
279 			break;
280 
281 		case VK_IMAGE_VIEW_TYPE_CUBE_ARRAY:
282 			samplerType << "samplerCubeArray";
283 			break;
284 
285 		default:
286 			DE_FATAL("Unknown image view type");
287 			break;
288 	}
289 
290 	return samplerType.str();
291 }
292 
getRenderSize(VkImageViewType viewType)293 tcu::UVec2 ImageViewTest::getRenderSize (VkImageViewType viewType)
294 {
295 	if (viewType == VK_IMAGE_VIEW_TYPE_1D || viewType == VK_IMAGE_VIEW_TYPE_2D)
296 		return tcu::UVec2(16u, 16u);
297 	else
298 		return tcu::UVec2(16u * 3u, 16u * 2u);
299 }
300 
getImageSize(VkImageViewType viewType)301 tcu::IVec3 ImageViewTest::getImageSize (VkImageViewType viewType)
302 {
303 	switch (viewType)
304 	{
305 		case VK_IMAGE_VIEW_TYPE_1D:
306 		case VK_IMAGE_VIEW_TYPE_1D_ARRAY:
307 			return tcu::IVec3(16, 1, 1);
308 
309 		case VK_IMAGE_VIEW_TYPE_3D:
310 			return tcu::IVec3(16);
311 
312 		default:
313 			break;
314 	}
315 
316 	return tcu::IVec3(16, 16, 1);
317 }
318 
getArraySize(VkImageViewType viewType)319 int ImageViewTest::getArraySize (VkImageViewType viewType)
320 {
321 	switch (viewType)
322 	{
323 		case VK_IMAGE_VIEW_TYPE_3D:
324 			return 1;
325 
326 		case VK_IMAGE_VIEW_TYPE_CUBE:
327 		case VK_IMAGE_VIEW_TYPE_CUBE_ARRAY:
328 			return 18;
329 
330 		default:
331 			break;
332 	}
333 
334 	return 6;
335 }
336 
getNumLevels(VkImageViewType viewType)337 int ImageViewTest::getNumLevels (VkImageViewType viewType)
338 {
339 	const tcu::IVec3 imageSize = getImageSize(viewType);
340 
341 	return deLog2Floor32(deMax32(imageSize.x(), deMax32(imageSize.y(), imageSize.z()))) + 1;
342 }
343 
getFormatCaseName(const VkFormat format)344 static std::string getFormatCaseName (const VkFormat format)
345 {
346 	const std::string fullName = getFormatName(format);
347 
348 	DE_ASSERT(de::beginsWith(fullName, "VK_FORMAT_"));
349 
350 	return de::toLower(fullName.substr(10));
351 }
352 
createSubresourceRangeTests(tcu::TestContext & testCtx,VkImageViewType viewType,VkFormat imageFormat)353 static de::MovePtr<tcu::TestCaseGroup> createSubresourceRangeTests(tcu::TestContext& testCtx, VkImageViewType viewType, VkFormat imageFormat)
354 {
355 	struct TestCaseConfig
356 	{
357 		const char*				name;
358 		float					samplerLod;
359 		VkImageSubresourceRange	subresourceRange;
360 	};
361 
362 	const deUint32				numLevels				= ImageViewTest::getNumLevels(viewType);
363 	const deUint32				arraySize				= ImageViewTest::getArraySize(viewType);
364 	const VkImageAspectFlags	imageAspectFlags		= VK_IMAGE_ASPECT_COLOR_BIT;
365 	const VkComponentMapping	componentMapping		= { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
366 
367 	de::MovePtr<tcu::TestCaseGroup> rangeTests (new tcu::TestCaseGroup(testCtx, "subresource_range", ""));
368 
369 #define ADD_SUBRESOURCE_RANGE_TESTS(TEST_CASES)															\
370 	do {																								\
371 		for (int configNdx = 0; configNdx < DE_LENGTH_OF_ARRAY(TEST_CASES); configNdx++)				\
372 		{																								\
373 			std::ostringstream		desc;																\
374 			const TestCaseConfig	config	= (TEST_CASES)[configNdx];									\
375 			desc << "Samples level " << config.samplerLod << " with :\n" << config.subresourceRange;	\
376 			rangeTests->addChild(new ImageViewTest(testCtx, config.name, desc.str().c_str(), viewType,	\
377 												   imageFormat, config.samplerLod, componentMapping,	\
378 												   config.subresourceRange));							\
379 		}																								\
380 	} while (deGetFalse())
381 
382 	if (viewType == VK_IMAGE_VIEW_TYPE_1D_ARRAY || viewType == VK_IMAGE_VIEW_TYPE_2D_ARRAY)
383 	{
384 		const TestCaseConfig mipLevelRangeCases[] =
385 		{
386 			//	name					samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
387 			{ "lod_base_mip_level",		0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 0u, arraySize } },
388 			{ "lod_mip_levels",			4.0f,		{ imageAspectFlags, 0u, 3u, 0u, arraySize } },
389 		};
390 
391 		const TestCaseConfig arrayRangeCases[] =
392 		{
393 			//	name					samplerLod		subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
394 			{ "base_array_layer",		0.0f,			{ imageAspectFlags, 0u, numLevels, 1u, arraySize - 1u } },
395 			{ "array_size",				0.0f,			{ imageAspectFlags, 0u, numLevels, 0u, 4u } },
396 			{ "array_base_and_size",	0.0f,			{ imageAspectFlags, 0u, numLevels, 2u, 3u } },
397 		};
398 
399 		const TestCaseConfig mipLevelAndArrayRangeCases[] =
400 		{
401 			//	name										samplerLod		subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
402 			{ "lod_base_mip_level_base_array_layer",		0.0f,			{ imageAspectFlags, 2u, numLevels - 2u, 1u, 5u } },
403 			{ "lod_mip_levels_base_array_layer",			4.0f,			{ imageAspectFlags, 0u, 3u, 1u, 5u } },
404 
405 			{ "lod_base_mip_level_array_size",				0.0f,			{ imageAspectFlags, 2u, numLevels - 2u, 0u, 4u } },
406 			{ "lod_mip_levels_array_size",					4.0f,			{ imageAspectFlags, 0u, 3u, 0u, 4u } },
407 
408 			{ "lod_base_mip_level_array_base_and_size",		0.0f,			{ imageAspectFlags, 2u, numLevels - 2u, 2u, 3u } },
409 			{ "lod_mip_levels_array_base_and_size",			4.0f,			{ imageAspectFlags, 0u, 3u, 2u, 3u } },
410 		};
411 
412 		const TestCaseConfig mipLevelAndArrayRemainingRangeCases[] =
413 		{
414 			//	name																samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
415 			{ "lod_base_mip_level_remaining_levels",								0.0f,		{ imageAspectFlags,	1u,	VK_REMAINING_MIP_LEVELS,	0u,	arraySize					} },
416 			{ "base_array_layer_remaining_layers",									0.0f,		{ imageAspectFlags,	0u,	numLevels,					1u,	VK_REMAINING_ARRAY_LAYERS	} },
417 			{ "lod_base_mip_level_base_array_layer_remaining_levels_and_layers",	0.0f,		{ imageAspectFlags,	2u,	VK_REMAINING_MIP_LEVELS,	2u,	VK_REMAINING_ARRAY_LAYERS	} },
418 		};
419 
420 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelRangeCases);
421 		ADD_SUBRESOURCE_RANGE_TESTS(arrayRangeCases);
422 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRangeCases);
423 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRemainingRangeCases);
424 	}
425 	else if (viewType == VK_IMAGE_VIEW_TYPE_CUBE_ARRAY)
426 	{
427 		const TestCaseConfig mipLevelRangeCases[] =
428 		{
429 			//	name					samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
430 			{ "lod_base_mip_level",		0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 0u, arraySize } },
431 			{ "lod_mip_levels",			4.0f,		{ imageAspectFlags, 0u, 3u, 0u, arraySize } },
432 		};
433 
434 		const TestCaseConfig arrayRangeCases[] =
435 		{
436 			//	name					samplerLod		subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
437 			{ "base_array_layer",		0.0f,			{ imageAspectFlags, 0u, numLevels, 6u, arraySize - 6u } },
438 			{ "array_size",				0.0f,			{ imageAspectFlags, 0u, numLevels, 0u, 6u } },
439 			{ "array_base_and_size",	0.0f,			{ imageAspectFlags, 0u, numLevels, 12u, 6u } },
440 		};
441 
442 		const TestCaseConfig mipLevelAndArrayRangeCases[] =
443 		{
444 			//	name										samplerLod		subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
445 			{ "lod_base_mip_level_base_array_layer",		0.0f,			{ imageAspectFlags, 2u, numLevels - 2u, 6u, arraySize - 6u } },
446 			{ "lod_mip_levels_base_array_layer",			4.0f,			{ imageAspectFlags, 0u, 3u, 6u, arraySize - 6u } },
447 
448 			{ "lod_base_mip_level_array_size",				0.0f,			{ imageAspectFlags, 2u, numLevels - 2u, 0u, 6u } },
449 			{ "lod_mip_levels_array_size",					4.0f,			{ imageAspectFlags, 0u, 3u, 0u, 6u } },
450 
451 			{ "lod_base_mip_level_array_base_and_size",		0.0f,			{ imageAspectFlags, 2u, numLevels - 2u, 12u, 6u } },
452 			{ "lod_mip_levels_array_base_and_size",			4.0f,			{ imageAspectFlags, 0u, 3u, 12u, 6u } },
453 		};
454 
455 		const TestCaseConfig mipLevelAndArrayRemainingRangeCases[] =
456 		{
457 			//	name																samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
458 			{ "lod_base_mip_level_remaining_levels",								0.0f,		{ imageAspectFlags,	1u,	VK_REMAINING_MIP_LEVELS,	0u,		arraySize					} },
459 			{ "base_array_layer_remaining_layers",									0.0f,		{ imageAspectFlags,	0u,	numLevels,					6u,		VK_REMAINING_ARRAY_LAYERS	} },
460 			{ "lod_base_mip_level_base_array_layer_remaining_levels_and_layers",	0.0f,		{ imageAspectFlags,	2u,	VK_REMAINING_MIP_LEVELS,	12u,	VK_REMAINING_ARRAY_LAYERS	} },
461 		};
462 
463 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelRangeCases);
464 		ADD_SUBRESOURCE_RANGE_TESTS(arrayRangeCases);
465 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRangeCases);
466 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRemainingRangeCases);
467 	}
468 	else if (viewType == VK_IMAGE_VIEW_TYPE_1D || viewType == VK_IMAGE_VIEW_TYPE_2D)
469 	{
470 		const TestCaseConfig mipLevelRangeCases[] =
471 		{
472 			//	name					samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
473 			{ "lod_base_mip_level",		0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 0u, 1u } },
474 			{ "lod_mip_levels",			4.0f,		{ imageAspectFlags, 0u, 3u, 0u, 1u } },
475 		};
476 
477 		const TestCaseConfig arrayRangeCases[] =
478 		{
479 			//	name					samplerLod		subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
480 			{ "array_layer_second",		0.0f,			{ imageAspectFlags, 0u, numLevels, 1u, 1u } },
481 			{ "array_layer_last",		0.0f,			{ imageAspectFlags, 0u, numLevels, arraySize - 1u, 1u } },
482 		};
483 
484 		const TestCaseConfig mipLevelAndArrayRangeCases[] =
485 		{
486 			//	name									samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
487 			{ "lod_base_mip_level_array_layer_second",	0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 1u, 1u } },
488 			{ "lod_mip_levels_array_layer_second",		4.0f,		{ imageAspectFlags, 0u, 3u, arraySize - 1u, 1u } },
489 
490 			{ "lod_base_mip_level_array_layer_last",	0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 5u, 1u } },
491 			{ "lod_mip_levels_array_layer_last",		4.0f,		{ imageAspectFlags, 0u, 3u, arraySize - 1u, 1u } },
492 		};
493 
494 		const TestCaseConfig mipLevelAndArrayRemainingRangeCases[] =
495 		{
496 			//	name																samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
497 			{ "lod_base_mip_level_remaining_levels",								0.0f,		{ imageAspectFlags,	1u,	VK_REMAINING_MIP_LEVELS,	0u,				1u							} },
498 			{ "array_layer_last_remaining_layers",									0.0f,		{ imageAspectFlags,	0u,	numLevels,					arraySize - 1u,	VK_REMAINING_ARRAY_LAYERS	} },
499 			{ "lod_base_mip_level_array_layer_last_remaining_levels_and_layers",	0.0f,		{ imageAspectFlags,	2u,	VK_REMAINING_MIP_LEVELS,	arraySize - 1u,	VK_REMAINING_ARRAY_LAYERS	} },
500 		};
501 
502 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelRangeCases);
503 		ADD_SUBRESOURCE_RANGE_TESTS(arrayRangeCases);
504 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRangeCases);
505 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRemainingRangeCases);
506 	}
507 	else if (viewType == VK_IMAGE_VIEW_TYPE_CUBE)
508 	{
509 		const TestCaseConfig mipLevelRangeCases[] =
510 		{
511 			//	name					samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
512 			{ "lod_base_mip_level",		0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 0u, 6u } },
513 			{ "lod_mip_levels",			4.0f,		{ imageAspectFlags, 0u, 3u, 0u, 6u } },
514 		};
515 
516 		const TestCaseConfig arrayRangeCases[] =
517 		{
518 			//	name					samplerLod		subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
519 			{ "array_layer_second",		0.0f,			{ imageAspectFlags, 0u, numLevels, 6u, 6u } },
520 			{ "array_layer_last",		0.0f,			{ imageAspectFlags, 0u, numLevels, arraySize - 6u, 6u } },
521 		};
522 
523 		const TestCaseConfig mipLevelAndArrayRangeCases[] =
524 		{
525 			//	name									samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
526 			{ "lod_base_mip_level_array_layer_second",	0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 6u, 6u } },
527 			{ "lod_mip_levels_array_layer_second",		4.0f,		{ imageAspectFlags, 0u, 3u, 6u, 6u } },
528 
529 			{ "lod_base_mip_level_array_layer_last",	0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, arraySize - 6u, 6u } },
530 			{ "lod_mip_levels_array_layer_last",		4.0f,		{ imageAspectFlags, 0u, 3u, arraySize - 6u, 6u } },
531 		};
532 
533 		const TestCaseConfig mipLevelAndArrayRemainingRangeCases[] =
534 		{
535 			//	name																samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
536 			{ "lod_base_mip_level_remaining_levels",								0.0f,		{ imageAspectFlags,	1u,	VK_REMAINING_MIP_LEVELS,	0u,				6u							} },
537 			{ "array_layer_last_remaining_layers",									0.0f,		{ imageAspectFlags,	0u,	numLevels,					arraySize - 6u,	VK_REMAINING_ARRAY_LAYERS	} },
538 			{ "lod_base_mip_level_array_layer_last_remaining_levels_and_layers",	0.0f,		{ imageAspectFlags,	2u,	VK_REMAINING_MIP_LEVELS,	arraySize - 6u,	VK_REMAINING_ARRAY_LAYERS	} },
539 		};
540 
541 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelRangeCases);
542 		ADD_SUBRESOURCE_RANGE_TESTS(arrayRangeCases);
543 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRangeCases);
544 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRemainingRangeCases);
545 	}
546 	else if (viewType == VK_IMAGE_VIEW_TYPE_3D)
547 	{
548 		const TestCaseConfig mipLevelRangeCases[] =
549 		{
550 			//	name					samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
551 			{ "lod_base_mip_level",		0.0f,		{ imageAspectFlags, 2u, numLevels - 2u, 0u, arraySize } },
552 			{ "lod_mip_levels",			4.0f,		{ imageAspectFlags, 0u, 3u, 0u, arraySize } },
553 		};
554 
555 		const TestCaseConfig mipLevelAndArrayRemainingRangeCases[] =
556 		{
557 			//	name																samplerLod	subresourceRange (aspectMask, baseMipLevel, mipLevels, baseArrayLayer, arraySize)
558 			{ "lod_base_mip_level_remaining_levels",								0.0f,		{ imageAspectFlags,	1u,	VK_REMAINING_MIP_LEVELS,	0u,	arraySize					} },
559 			{ "single_array_layer_remaining_layers",								0.0f,		{ imageAspectFlags,	0u,	numLevels,					0u,	VK_REMAINING_ARRAY_LAYERS	} },
560 			{ "lod_base_mip_level_single_array_layer_remaining_levels_and_layers",	0.0f,		{ imageAspectFlags,	2u,	VK_REMAINING_MIP_LEVELS,	0u,	VK_REMAINING_ARRAY_LAYERS	} },
561 		};
562 
563 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelRangeCases);
564 		ADD_SUBRESOURCE_RANGE_TESTS(mipLevelAndArrayRemainingRangeCases);
565 	}
566 
567 #undef ADD_SUBRESOURCE_RANGE_TESTS
568 
569 	return rangeTests;
570 }
571 
getComponentMappingPermutations(const VkComponentMapping & componentMapping)572 static std::vector<VkComponentMapping> getComponentMappingPermutations (const VkComponentMapping& componentMapping)
573 {
574 	std::vector<VkComponentMapping> mappings;
575 
576 	const VkComponentSwizzle channelSwizzles[4] = { componentMapping.r, componentMapping.g, componentMapping.b, componentMapping.a };
577 
578 	// Rearranges the channels by shifting their positions.
579 	for (int firstChannelNdx = 0; firstChannelNdx < 4; firstChannelNdx++)
580 	{
581 		VkComponentSwizzle currentChannel[4];
582 
583 		for (int channelNdx = 0; channelNdx < 4; channelNdx++)
584 			currentChannel[channelNdx] = channelSwizzles[(firstChannelNdx + channelNdx) % 4];
585 
586 		const VkComponentMapping mappingPermutation  =
587 		{
588 			currentChannel[0],
589 			currentChannel[1],
590 			currentChannel[2],
591 			currentChannel[3]
592 		};
593 
594 		mappings.push_back(mappingPermutation);
595 	}
596 
597 	return mappings;
598 }
599 
getComponentSwizzleCaseName(VkComponentSwizzle componentSwizzle)600 static std::string getComponentSwizzleCaseName (VkComponentSwizzle componentSwizzle)
601 {
602 	const std::string fullName = getComponentSwizzleName(componentSwizzle);
603 
604 	DE_ASSERT(de::beginsWith(fullName, "VK_COMPONENT_SWIZZLE_"));
605 
606 	return de::toLower(fullName.substr(21));
607 }
608 
getComponentMappingCaseName(const VkComponentMapping & componentMapping)609 static std::string getComponentMappingCaseName (const VkComponentMapping& componentMapping)
610 {
611 	std::ostringstream name;
612 
613 	name << getComponentSwizzleCaseName(componentMapping.r) << "_"
614 		 << getComponentSwizzleCaseName(componentMapping.g) << "_"
615 		 << getComponentSwizzleCaseName(componentMapping.b) << "_"
616 		 << getComponentSwizzleCaseName(componentMapping.a);
617 
618 	return name.str();
619 }
620 
createComponentSwizzleTests(tcu::TestContext & testCtx,VkImageViewType viewType,VkFormat imageFormat)621 static de::MovePtr<tcu::TestCaseGroup> createComponentSwizzleTests (tcu::TestContext& testCtx, VkImageViewType viewType, VkFormat imageFormat)
622 {
623 	deUint32 arraySize = 0;
624 
625 	switch (viewType)
626 	{
627 		case VK_IMAGE_VIEW_TYPE_1D:
628 		case VK_IMAGE_VIEW_TYPE_2D:
629 		case VK_IMAGE_VIEW_TYPE_3D:
630 			arraySize = 1;
631 			break;
632 
633 		case VK_IMAGE_VIEW_TYPE_CUBE:
634 			arraySize = 6;
635 			break;
636 
637 		case VK_IMAGE_VIEW_TYPE_1D_ARRAY:
638 		case VK_IMAGE_VIEW_TYPE_2D_ARRAY:
639 		case VK_IMAGE_VIEW_TYPE_CUBE_ARRAY:
640 			arraySize = ImageViewTest::getArraySize(viewType);
641 			break;
642 
643 		default:
644 			break;
645 	}
646 
647 	const VkImageSubresourceRange subresourceRange =
648 	{
649 		VK_IMAGE_ASPECT_COLOR_BIT,							// VkImageAspectFlags	aspectMask;
650 		0u,													// deUint32				baseMipLevel;
651 		(deUint32)ImageViewTest::getNumLevels(viewType),	// deUint32				mipLevels;
652 		0u,													// deUint32				baseArrayLayer;
653 		arraySize,											// deUint32				arraySize;
654 	};
655 
656 	const VkComponentMapping				baseMapping			= { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
657 	const std::vector<VkComponentMapping>	componentMappings	= getComponentMappingPermutations(baseMapping);
658 	de::MovePtr<tcu::TestCaseGroup>			swizzleTests		(new tcu::TestCaseGroup(testCtx, "component_swizzle", ""));
659 
660 	for (size_t mappingNdx = 0; mappingNdx < componentMappings.size(); mappingNdx++)
661 	{
662 		swizzleTests->addChild(new ImageViewTest(testCtx,
663 												 getComponentMappingCaseName(componentMappings[mappingNdx]).c_str(),
664 												 "",
665 												 viewType,
666 												 imageFormat,
667 												 0.0f,
668 												 componentMappings[mappingNdx],
669 												 subresourceRange));
670 	}
671 
672 	return swizzleTests;
673 }
674 
675 } // anonymous
676 
createImageViewTests(tcu::TestContext & testCtx)677 tcu::TestCaseGroup* createImageViewTests (tcu::TestContext& testCtx)
678 {
679 	const struct
680 	{
681 		VkImageViewType		type;
682 		const char*			name;
683 	}
684 	imageViewTypes[] =
685 	{
686 		{ VK_IMAGE_VIEW_TYPE_1D,			"1d" },
687 		{ VK_IMAGE_VIEW_TYPE_1D_ARRAY,		"1d_array" },
688 		{ VK_IMAGE_VIEW_TYPE_2D,			"2d" },
689 		{ VK_IMAGE_VIEW_TYPE_2D_ARRAY,		"2d_array" },
690 		{ VK_IMAGE_VIEW_TYPE_3D,			"3d" },
691 		{ VK_IMAGE_VIEW_TYPE_CUBE,			"cube" },
692 		{ VK_IMAGE_VIEW_TYPE_CUBE_ARRAY,	"cube_array" }
693 	};
694 
695 	const VkFormat formats[] =
696 	{
697 		VK_FORMAT_R4G4_UNORM_PACK8,
698 		VK_FORMAT_R4G4B4A4_UNORM_PACK16,
699 		VK_FORMAT_R5G6B5_UNORM_PACK16,
700 		VK_FORMAT_R5G5B5A1_UNORM_PACK16,
701 		VK_FORMAT_R8_UNORM,
702 		VK_FORMAT_R8_SNORM,
703 		VK_FORMAT_R8_USCALED,
704 		VK_FORMAT_R8_SSCALED,
705 		VK_FORMAT_R8_UINT,
706 		VK_FORMAT_R8_SINT,
707 		VK_FORMAT_R8_SRGB,
708 		VK_FORMAT_R8G8_UNORM,
709 		VK_FORMAT_R8G8_SNORM,
710 		VK_FORMAT_R8G8_USCALED,
711 		VK_FORMAT_R8G8_SSCALED,
712 		VK_FORMAT_R8G8_UINT,
713 		VK_FORMAT_R8G8_SINT,
714 		VK_FORMAT_R8G8_SRGB,
715 		VK_FORMAT_R8G8B8_UNORM,
716 		VK_FORMAT_R8G8B8_SNORM,
717 		VK_FORMAT_R8G8B8_USCALED,
718 		VK_FORMAT_R8G8B8_SSCALED,
719 		VK_FORMAT_R8G8B8_UINT,
720 		VK_FORMAT_R8G8B8_SINT,
721 		VK_FORMAT_R8G8B8_SRGB,
722 		VK_FORMAT_B8G8R8_UNORM,
723 		VK_FORMAT_B8G8R8_SNORM,
724 		VK_FORMAT_B8G8R8_USCALED,
725 		VK_FORMAT_B8G8R8_SSCALED,
726 		VK_FORMAT_B8G8R8_UINT,
727 		VK_FORMAT_B8G8R8_SINT,
728 		VK_FORMAT_B8G8R8_SRGB,
729 		VK_FORMAT_R8G8B8A8_UNORM,
730 		VK_FORMAT_R8G8B8A8_SNORM,
731 		VK_FORMAT_R8G8B8A8_USCALED,
732 		VK_FORMAT_R8G8B8A8_SSCALED,
733 		VK_FORMAT_R8G8B8A8_UINT,
734 		VK_FORMAT_R8G8B8A8_SINT,
735 		VK_FORMAT_R8G8B8A8_SRGB,
736 		VK_FORMAT_B8G8R8A8_UNORM,
737 		VK_FORMAT_B8G8R8A8_SNORM,
738 		VK_FORMAT_B8G8R8A8_USCALED,
739 		VK_FORMAT_B8G8R8A8_SSCALED,
740 		VK_FORMAT_B8G8R8A8_UINT,
741 		VK_FORMAT_B8G8R8A8_SINT,
742 		VK_FORMAT_B8G8R8A8_SRGB,
743 		VK_FORMAT_A2R10G10B10_UNORM_PACK32,
744 		VK_FORMAT_A2R10G10B10_UINT_PACK32,
745 		VK_FORMAT_A2B10G10R10_USCALED_PACK32,
746 		VK_FORMAT_R16_UNORM,
747 		VK_FORMAT_R16_SNORM,
748 		VK_FORMAT_R16_USCALED,
749 		VK_FORMAT_R16_SSCALED,
750 		VK_FORMAT_R16_UINT,
751 		VK_FORMAT_R16_SINT,
752 		VK_FORMAT_R16_SFLOAT,
753 		VK_FORMAT_R16G16_UNORM,
754 		VK_FORMAT_R16G16_SNORM,
755 		VK_FORMAT_R16G16_USCALED,
756 		VK_FORMAT_R16G16_SSCALED,
757 		VK_FORMAT_R16G16_UINT,
758 		VK_FORMAT_R16G16_SINT,
759 		VK_FORMAT_R16G16_SFLOAT,
760 		VK_FORMAT_R16G16B16_UNORM,
761 		VK_FORMAT_R16G16B16_SNORM,
762 		VK_FORMAT_R16G16B16_USCALED,
763 		VK_FORMAT_R16G16B16_SSCALED,
764 		VK_FORMAT_R16G16B16_UINT,
765 		VK_FORMAT_R16G16B16_SINT,
766 		VK_FORMAT_R16G16B16_SFLOAT,
767 		VK_FORMAT_R16G16B16A16_UNORM,
768 		VK_FORMAT_R16G16B16A16_SNORM,
769 		VK_FORMAT_R16G16B16A16_USCALED,
770 		VK_FORMAT_R16G16B16A16_SSCALED,
771 		VK_FORMAT_R16G16B16A16_UINT,
772 		VK_FORMAT_R16G16B16A16_SINT,
773 		VK_FORMAT_R16G16B16A16_SFLOAT,
774 		VK_FORMAT_R32_UINT,
775 		VK_FORMAT_R32_SINT,
776 		VK_FORMAT_R32_SFLOAT,
777 		VK_FORMAT_R32G32_UINT,
778 		VK_FORMAT_R32G32_SINT,
779 		VK_FORMAT_R32G32_SFLOAT,
780 		VK_FORMAT_R32G32B32_UINT,
781 		VK_FORMAT_R32G32B32_SINT,
782 		VK_FORMAT_R32G32B32_SFLOAT,
783 		VK_FORMAT_R32G32B32A32_UINT,
784 		VK_FORMAT_R32G32B32A32_SINT,
785 		VK_FORMAT_R32G32B32A32_SFLOAT,
786 		VK_FORMAT_B10G11R11_UFLOAT_PACK32,
787 		VK_FORMAT_E5B9G9R9_UFLOAT_PACK32,
788 		VK_FORMAT_B4G4R4A4_UNORM_PACK16,
789 		VK_FORMAT_B5G5R5A1_UNORM_PACK16,
790 		VK_FORMAT_A4R4G4B4_UNORM_PACK16_EXT,
791 		VK_FORMAT_A4B4G4R4_UNORM_PACK16_EXT,
792 		VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16,
793 
794 		// Compressed formats
795 		VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK,
796 		VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK,
797 		VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK,
798 		VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK,
799 		VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK,
800 		VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK,
801 		VK_FORMAT_EAC_R11_UNORM_BLOCK,
802 		VK_FORMAT_EAC_R11_SNORM_BLOCK,
803 		VK_FORMAT_EAC_R11G11_UNORM_BLOCK,
804 		VK_FORMAT_EAC_R11G11_SNORM_BLOCK,
805 		VK_FORMAT_ASTC_4x4_UNORM_BLOCK,
806 		VK_FORMAT_ASTC_4x4_SRGB_BLOCK,
807 		VK_FORMAT_ASTC_5x4_UNORM_BLOCK,
808 		VK_FORMAT_ASTC_5x4_SRGB_BLOCK,
809 		VK_FORMAT_ASTC_5x5_UNORM_BLOCK,
810 		VK_FORMAT_ASTC_5x5_SRGB_BLOCK,
811 		VK_FORMAT_ASTC_6x5_UNORM_BLOCK,
812 		VK_FORMAT_ASTC_6x5_SRGB_BLOCK,
813 		VK_FORMAT_ASTC_6x6_UNORM_BLOCK,
814 		VK_FORMAT_ASTC_6x6_SRGB_BLOCK,
815 		VK_FORMAT_ASTC_8x5_UNORM_BLOCK,
816 		VK_FORMAT_ASTC_8x5_SRGB_BLOCK,
817 		VK_FORMAT_ASTC_8x6_UNORM_BLOCK,
818 		VK_FORMAT_ASTC_8x6_SRGB_BLOCK,
819 		VK_FORMAT_ASTC_8x8_UNORM_BLOCK,
820 		VK_FORMAT_ASTC_8x8_SRGB_BLOCK,
821 		VK_FORMAT_ASTC_10x5_UNORM_BLOCK,
822 		VK_FORMAT_ASTC_10x5_SRGB_BLOCK,
823 		VK_FORMAT_ASTC_10x6_UNORM_BLOCK,
824 		VK_FORMAT_ASTC_10x6_SRGB_BLOCK,
825 		VK_FORMAT_ASTC_10x8_UNORM_BLOCK,
826 		VK_FORMAT_ASTC_10x8_SRGB_BLOCK,
827 		VK_FORMAT_ASTC_10x10_UNORM_BLOCK,
828 		VK_FORMAT_ASTC_10x10_SRGB_BLOCK,
829 		VK_FORMAT_ASTC_12x10_UNORM_BLOCK,
830 		VK_FORMAT_ASTC_12x10_SRGB_BLOCK,
831 		VK_FORMAT_ASTC_12x12_UNORM_BLOCK,
832 		VK_FORMAT_ASTC_12x12_SRGB_BLOCK,
833 	};
834 
835 	de::MovePtr<tcu::TestCaseGroup> imageTests			(new tcu::TestCaseGroup(testCtx, "image_view", "Image tests"));
836 	de::MovePtr<tcu::TestCaseGroup> viewTypeTests		(new tcu::TestCaseGroup(testCtx, "view_type", ""));
837 
838 	for (int viewTypeNdx = 0; viewTypeNdx < DE_LENGTH_OF_ARRAY(imageViewTypes); viewTypeNdx++)
839 	{
840 		const VkImageViewType			viewType		= imageViewTypes[viewTypeNdx].type;
841 		de::MovePtr<tcu::TestCaseGroup>	viewTypeGroup	(new tcu::TestCaseGroup(testCtx, imageViewTypes[viewTypeNdx].name, (std::string("Uses a ") + imageViewTypes[viewTypeNdx].name + " view").c_str()));
842 		de::MovePtr<tcu::TestCaseGroup>	formatTests		(new tcu::TestCaseGroup(testCtx, "format", "Uses samplable formats"));
843 
844 		for (size_t formatNdx = 0; formatNdx < DE_LENGTH_OF_ARRAY(formats); formatNdx++)
845 		{
846 			const VkFormat		format		= formats[formatNdx];
847 
848 			if (isCompressedFormat(format))
849 			{
850 				// Do not use compressed formats with 1D and 1D array textures.
851 				if (viewType == VK_IMAGE_VIEW_TYPE_1D || viewType == VK_IMAGE_VIEW_TYPE_1D_ARRAY)
852 					break;
853 			}
854 
855 			de::MovePtr<tcu::TestCaseGroup>	formatGroup	(new tcu::TestCaseGroup(testCtx,
856 																				getFormatCaseName(format).c_str(),
857 																				(std::string("Samples a texture of format ") + getFormatName(format)).c_str()));
858 
859 			de::MovePtr<tcu::TestCaseGroup>	subresourceRangeTests	= createSubresourceRangeTests(testCtx, viewType, format);
860 			de::MovePtr<tcu::TestCaseGroup>	componentSwizzleTests	= createComponentSwizzleTests(testCtx, viewType, format);
861 
862 			formatGroup->addChild(componentSwizzleTests.release());
863 			formatGroup->addChild(subresourceRangeTests.release());
864 			formatTests->addChild(formatGroup.release());
865 		}
866 
867 		viewTypeGroup->addChild(formatTests.release());
868 		viewTypeTests->addChild(viewTypeGroup.release());
869 	}
870 
871 	imageTests->addChild(viewTypeTests.release());
872 
873 	return imageTests.release();
874 }
875 
876 } // pipeline
877 } // vkt
878