es31fCopyImageTests.cpp revision 8076c97ac0fc706288ef266b0cbe748012c4e0c4 
1/*-------------------------------------------------------------------------
2 * drawElements Quality Program OpenGL ES 3.1 Module
3 * -------------------------------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 *      http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Copy image tests for GL_EXT_copy_image.
22 *//*--------------------------------------------------------------------*/
23
24#include "es31fCopyImageTests.hpp"
25
26#include "tes31TestCase.hpp"
27
28#include "glsTextureTestUtil.hpp"
29
30#include "gluContextInfo.hpp"
31#include "gluObjectWrapper.hpp"
32#include "gluRenderContext.hpp"
33#include "gluStrUtil.hpp"
34#include "gluTextureUtil.hpp"
35#include "gluPixelTransfer.hpp"
36
37#include "glwEnums.hpp"
38#include "glwFunctions.hpp"
39
40#include "tcuCompressedTexture.hpp"
41#include "tcuFloat.hpp"
42#include "tcuImageCompare.hpp"
43#include "tcuTestLog.hpp"
44#include "tcuTexture.hpp"
45#include "tcuTextureUtil.hpp"
46#include "tcuVector.hpp"
47#include "tcuVectorUtil.hpp"
48#include "tcuSeedBuilder.hpp"
49#include "tcuResultCollector.hpp"
50
51#include "deArrayBuffer.hpp"
52#include "deFloat16.h"
53#include "deRandom.hpp"
54#include "deStringUtil.hpp"
55#include "deUniquePtr.hpp"
56#include "deArrayUtil.hpp"
57
58#include <map>
59#include <string>
60#include <vector>
61
62using namespace deqp::gls::TextureTestUtil;
63using namespace glu::TextureTestUtil;
64
65using tcu::Float;
66using tcu::IVec3;
67using tcu::Sampler;
68using tcu::ScopedLogSection;
69using tcu::TestLog;
70using tcu::Vec4;
71using tcu::SeedBuilder;
72
73using de::ArrayBuffer;
74
75using std::map;
76using std::string;
77using std::vector;
78using std::pair;
79
80namespace deqp
81{
82namespace gles31
83{
84namespace Functional
85{
86namespace
87{
88
89enum ViewClass
90{
91	VIEWCLASS_128_BITS = 0,
92	VIEWCLASS_96_BITS,
93	VIEWCLASS_64_BITS,
94	VIEWCLASS_48_BITS,
95	VIEWCLASS_32_BITS,
96	VIEWCLASS_24_BITS,
97	VIEWCLASS_16_BITS,
98	VIEWCLASS_8_BITS,
99
100	VIEWCLASS_EAC_R11,
101	VIEWCLASS_EAC_RG11,
102	VIEWCLASS_ETC2_RGB,
103	VIEWCLASS_ETC2_RGBA,
104	VIEWCLASS_ETC2_EAC_RGBA,
105	VIEWCLASS_ASTC_4x4_RGBA,
106	VIEWCLASS_ASTC_5x4_RGBA,
107	VIEWCLASS_ASTC_5x5_RGBA,
108	VIEWCLASS_ASTC_6x5_RGBA,
109	VIEWCLASS_ASTC_6x6_RGBA,
110	VIEWCLASS_ASTC_8x5_RGBA,
111	VIEWCLASS_ASTC_8x6_RGBA,
112	VIEWCLASS_ASTC_8x8_RGBA,
113	VIEWCLASS_ASTC_10x5_RGBA,
114	VIEWCLASS_ASTC_10x6_RGBA,
115	VIEWCLASS_ASTC_10x8_RGBA,
116	VIEWCLASS_ASTC_10x10_RGBA,
117	VIEWCLASS_ASTC_12x10_RGBA,
118	VIEWCLASS_ASTC_12x12_RGBA
119};
120
121const char* viewClassToName (ViewClass viewClass)
122{
123	switch (viewClass)
124	{
125		case VIEWCLASS_128_BITS:			return "viewclass_128_bits";
126		case VIEWCLASS_96_BITS:				return "viewclass_96_bits";
127		case VIEWCLASS_64_BITS:				return "viewclass_64_bits";
128		case VIEWCLASS_48_BITS:				return "viewclass_48_bits";
129		case VIEWCLASS_32_BITS:				return "viewclass_32_bits";
130		case VIEWCLASS_24_BITS:				return "viewclass_24_bits";
131		case VIEWCLASS_16_BITS:				return "viewclass_16_bits";
132		case VIEWCLASS_8_BITS:				return "viewclass_8_bits";
133		case VIEWCLASS_EAC_R11:				return "viewclass_eac_r11";
134		case VIEWCLASS_EAC_RG11:			return "viewclass_eac_rg11";
135		case VIEWCLASS_ETC2_RGB:			return "viewclass_etc2_rgb";
136		case VIEWCLASS_ETC2_RGBA:			return "viewclass_etc2_rgba";
137		case VIEWCLASS_ETC2_EAC_RGBA:		return "viewclass_etc2_eac_rgba";
138		case VIEWCLASS_ASTC_4x4_RGBA:		return "viewclass_astc_4x4_rgba";
139		case VIEWCLASS_ASTC_5x4_RGBA:		return "viewclass_astc_5x4_rgba";
140		case VIEWCLASS_ASTC_5x5_RGBA:		return "viewclass_astc_5x5_rgba";
141		case VIEWCLASS_ASTC_6x5_RGBA:		return "viewclass_astc_6x5_rgba";
142		case VIEWCLASS_ASTC_6x6_RGBA:		return "viewclass_astc_6x6_rgba";
143		case VIEWCLASS_ASTC_8x5_RGBA:		return "viewclass_astc_8x5_rgba";
144		case VIEWCLASS_ASTC_8x6_RGBA:		return "viewclass_astc_8x6_rgba";
145		case VIEWCLASS_ASTC_8x8_RGBA:		return "viewclass_astc_8x8_rgba";
146		case VIEWCLASS_ASTC_10x5_RGBA:		return "viewclass_astc_10x5_rgba";
147		case VIEWCLASS_ASTC_10x6_RGBA:		return "viewclass_astc_10x6_rgba";
148		case VIEWCLASS_ASTC_10x8_RGBA:		return "viewclass_astc_10x8_rgba";
149		case VIEWCLASS_ASTC_10x10_RGBA:		return "viewclass_astc_10x10_rgba";
150		case VIEWCLASS_ASTC_12x10_RGBA:		return "viewclass_astc_12x10_rgba";
151		case VIEWCLASS_ASTC_12x12_RGBA:		return "viewclass_astc_12x12_rgba";
152
153		default:
154			DE_ASSERT(false);
155			return NULL;
156	}
157}
158
159const char* targetToName (deUint32 target)
160{
161	switch (target)
162	{
163		case GL_RENDERBUFFER:		return "renderbuffer";
164		case GL_TEXTURE_2D:			return "texture2d";
165		case GL_TEXTURE_3D:			return "texture3d";
166		case GL_TEXTURE_2D_ARRAY:	return "texture2d_array";
167		case GL_TEXTURE_CUBE_MAP:	return "cubemap";
168
169		default:
170			DE_ASSERT(false);
171			return NULL;
172	}
173}
174
175string formatToName (deUint32 format)
176{
177	string enumName;
178
179	if (glu::isCompressedFormat(format))
180		enumName = glu::getCompressedTextureFormatStr(format).toString().substr(14); // Strip GL_COMPRESSED_
181	else
182		enumName = glu::getUncompressedTextureFormatStr(format).toString().substr(3); // Strip GL_
183
184	return de::toLower(enumName);
185}
186
187bool isFloatFormat (deUint32 format)
188{
189	if (glu::isCompressedFormat(format))
190		return false;
191	else
192		return tcu::getTextureChannelClass(glu::mapGLInternalFormat(format).type) == tcu::TEXTURECHANNELCLASS_FLOATING_POINT;
193}
194
195bool isUintFormat (deUint32 format)
196{
197	if (glu::isCompressedFormat(format))
198		return false;
199	else
200		return tcu::getTextureChannelClass(glu::mapGLInternalFormat(format).type) == tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER;
201}
202
203bool isIntFormat (deUint32 format)
204{
205	if (glu::isCompressedFormat(format))
206		return false;
207	else
208		return tcu::getTextureChannelClass(glu::mapGLInternalFormat(format).type) == tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER;
209}
210
211bool isFixedPointFormat (deUint32 format)
212{
213	if (glu::isCompressedFormat(format))
214		return false;
215	else
216	{
217		const tcu::TextureChannelClass channelClass = tcu::getTextureChannelClass(glu::mapGLInternalFormat(format).type);
218
219		return channelClass == tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT || channelClass == tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT;
220	}
221}
222
223bool isTextureTarget (deUint32 target)
224{
225	return target != GL_RENDERBUFFER;
226}
227
228int getTargetTexDims (deUint32 target)
229{
230	DE_ASSERT(isTextureTarget(target));
231
232	switch (target)
233	{
234		case GL_TEXTURE_1D:
235			return 1;
236
237		case GL_TEXTURE_1D_ARRAY:
238		case GL_TEXTURE_2D:
239		case GL_TEXTURE_CUBE_MAP:
240			return 2;
241
242		case GL_TEXTURE_2D_ARRAY:
243		case GL_TEXTURE_3D:
244			return 3;
245
246		default:
247			DE_ASSERT(false);
248			return -1;
249	}
250}
251
252class ImageInfo
253{
254public:
255					ImageInfo		(deUint32 format, deUint32 target, const IVec3& size);
256
257	deUint32		getFormat		(void) const { return m_format; }
258	deUint32		getTarget		(void) const { return m_target; }
259	const IVec3&	getSize			(void) const { return m_size; }
260
261private:
262	deUint32		m_format;
263	deUint32		m_target;
264	IVec3			m_size;
265};
266
267ImageInfo::ImageInfo (deUint32 format, deUint32 target, const IVec3& size)
268	: m_format		(format)
269	, m_target		(target)
270	, m_size		(size)
271{
272	DE_ASSERT(m_target == GL_TEXTURE_2D_ARRAY || m_target == GL_TEXTURE_3D || m_size.z() == 1);
273	DE_ASSERT(isTextureTarget(m_target) || !glu::isCompressedFormat(m_target));
274}
275
276
277SeedBuilder& operator<< (SeedBuilder& builder, const ImageInfo& info)
278{
279	builder << info.getFormat() << info.getTarget() << info.getSize();
280	return builder;
281}
282
283const glu::ObjectTraits& getObjectTraits (const ImageInfo& info)
284{
285	if (isTextureTarget(info.getTarget()))
286		return glu::objectTraits(glu::OBJECTTYPE_TEXTURE);
287	else
288		return glu::objectTraits(glu::OBJECTTYPE_RENDERBUFFER);
289}
290
291int getLevelCount (const ImageInfo& info)
292{
293	const deUint32	target	= info.getTarget();
294	const IVec3		size	= info.getSize();
295
296	if (target == GL_RENDERBUFFER)
297		return 1;
298	else if (target == GL_TEXTURE_2D_ARRAY)
299	{
300		const int maxSize = de::max(size.x(), size.y());
301
302		return deLog2Ceil32(maxSize);
303	}
304	else
305	{
306		const int maxSize = de::max(size.x(), de::max(size.y(), size.z()));
307
308		return deLog2Ceil32(maxSize);
309	}
310}
311
312// Return format that has more restrictions on texel data.
313deUint32 getMoreRestrictiveFormat (deUint32 formatA, deUint32 formatB)
314{
315	if (formatA == formatB)
316		return formatA;
317	else if (glu::isCompressedFormat(formatA) && isAstcFormat(glu::mapGLCompressedTexFormat(formatA)))
318		return formatA;
319	else if (glu::isCompressedFormat(formatB) && isAstcFormat(glu::mapGLCompressedTexFormat(formatB)))
320		return formatB;
321	else if (isFloatFormat(formatA))
322	{
323		DE_ASSERT(!isFloatFormat(formatB));
324
325		return formatA;
326	}
327	else if (isFloatFormat(formatB))
328	{
329		DE_ASSERT(!isFloatFormat(formatA));
330
331		return formatB;
332	}
333	else if (glu::isCompressedFormat(formatA))
334	{
335		return formatA;
336	}
337	else if (glu::isCompressedFormat(formatB))
338	{
339		return formatB;
340	}
341	else
342		return formatA;
343}
344
345int getTexelBlockSize (deUint32 format)
346{
347	if (glu::isCompressedFormat(format))
348		return tcu::getBlockSize(glu::mapGLCompressedTexFormat(format));
349	else
350		return glu::mapGLInternalFormat(format).getPixelSize();
351}
352
353IVec3 getTexelBlockPixelSize (deUint32 format)
354{
355	if (glu::isCompressedFormat(format))
356		return tcu::getBlockPixelSize(glu::mapGLCompressedTexFormat(format));
357	else
358		return IVec3(1, 1, 1);
359}
360
361IVec3 getLevelSize (deUint32 target, const IVec3& baseSize, int level)
362{
363	IVec3 size;
364
365	if (target != GL_TEXTURE_2D_ARRAY)
366	{
367		for (int i = 0; i < 3; i++)
368			size[i] = de::max(baseSize[i] >> level, 1);
369	}
370	else
371	{
372		for (int i = 0; i < 2; i++)
373			size[i] = de::max(baseSize[i] >> level, 1);
374
375		size[2] = baseSize[2];
376	}
377
378	return size;
379}
380
381bool isColorRenderable (deUint32 format)
382{
383	switch (format)
384	{
385		case GL_R8:
386		case GL_RG8:
387		case GL_RGB8:
388		case GL_RGB565:
389		case GL_RGB4:
390		case GL_RGB5_A1:
391		case GL_RGBA8:
392		case GL_RGB10_A2:
393		case GL_RGB10_A2UI:
394		case GL_SRGB8_ALPHA8:
395		case GL_R8I:
396		case GL_R8UI:
397		case GL_R16I:
398		case GL_R16UI:
399		case GL_R32I:
400		case GL_R32UI:
401		case GL_RG8I:
402		case GL_RG8UI:
403		case GL_RG16I:
404		case GL_RG16UI:
405		case GL_RG32I:
406		case GL_RG32UI:
407		case GL_RGBA8I:
408		case GL_RGBA8UI:
409		case GL_RGBA16I:
410		case GL_RGBA16UI:
411		case GL_RGBA32I:
412		case GL_RGBA32UI:
413			return true;
414
415		default:
416			return false;
417	}
418}
419
420deUint32 getTypeForInternalFormat (deUint32 format)
421{
422	return glu::getTransferFormat(glu::mapGLInternalFormat(format)).dataType;
423}
424
425void genTexel (de::Random& rng, deUint32 glFormat, int texelBlockSize, const int texelCount, deUint8* buffer)
426{
427	if (isFloatFormat(glFormat))
428	{
429		const tcu::TextureFormat		format	= glu::mapGLInternalFormat(glFormat);
430		const tcu::PixelBufferAccess	access	(format, texelCount, 1, 1, buffer);
431		const tcu::TextureFormatInfo	info	= tcu::getTextureFormatInfo(format);
432
433		for (int texelNdx = 0; texelNdx < texelCount; texelNdx++)
434		{
435			const float	red		= rng.getFloat(info.valueMin.x(), info.valueMax.x());
436			const float green	= rng.getFloat(info.valueMin.y(), info.valueMax.y());
437			const float blue	= rng.getFloat(info.valueMin.z(), info.valueMax.z());
438			const float alpha	= rng.getFloat(info.valueMin.w(), info.valueMax.w());
439
440			const Vec4	color	(red, green, blue, alpha);
441
442			access.setPixel(color, texelNdx, 0, 0);
443		}
444	}
445	else if (glu::isCompressedFormat(glFormat))
446	{
447		const tcu::CompressedTexFormat compressedFormat = glu::mapGLCompressedTexFormat(glFormat);
448
449		if (tcu::isAstcFormat(compressedFormat))
450		{
451			const int		BLOCK_SIZE				= 16;
452			const deUint8	blocks[][BLOCK_SIZE]	=
453			{
454				// \note All of the following blocks are valid in LDR mode.
455				{ 252,	253,	255,	255,	255,	255,	255,	255,	8,		71,		90,		78,		22,		17,		26,		66,		},
456				{ 252,	253,	255,	255,	255,	255,	255,	255,	220,	74,		139,	235,	249,	6,		145,	125		},
457				{ 252,	253,	255,	255,	255,	255,	255,	255,	223,	251,	28,		206,	54,		251,	160,	174		},
458				{ 252,	253,	255,	255,	255,	255,	255,	255,	39,		4,		153,	219,	180,	61,		51,		37		},
459				{ 67,	2,		0,		254,	1,		0,		64,		215,	83,		211,	159,	105,	41,		140,	50,		2		},
460				{ 67,	130,	0,		170,	84,		255,	65,		215,	83,		211,	159,	105,	41,		140,	50,		2		},
461				{ 67,	2,		129,	38,		51,		229,	95,		215,	83,		211,	159,	105,	41,		140,	50,		2		},
462				{ 67,	130,	193,	56,		213,	144,	95,		215,	83,		211,	159,	105,	41,		140,	50,		2		}
463			};
464
465			DE_ASSERT(texelBlockSize == BLOCK_SIZE);
466
467			for (int i = 0; i < texelCount; i++)
468			{
469				const int blockNdx = rng.getInt(0, DE_LENGTH_OF_ARRAY(blocks)-1);
470
471				deMemcpy(buffer + i * BLOCK_SIZE,  blocks[blockNdx], BLOCK_SIZE);
472			}
473		}
474		else
475		{
476			for (int i = 0; i < texelBlockSize * texelCount; i++)
477			{
478				const deUint8 val = rng.getUint8();
479
480				buffer[i] = val;
481			}
482		}
483	}
484	else
485	{
486		for (int i = 0; i < texelBlockSize * texelCount; i++)
487		{
488			const deUint8 val = rng.getUint8();
489
490			buffer[i] = val;
491		}
492	}
493}
494
495IVec3 divRoundUp (const IVec3& a, const IVec3& b)
496{
497	IVec3 res;
498
499	for (int i =0; i < 3; i++)
500		res[i] = a[i] / b[i] + ((a[i] % b[i]) ? 1 : 0);
501
502	return res;
503}
504
505deUint32 mapFaceNdxToFace (int ndx)
506{
507	const deUint32 cubeFaces[] =
508	{
509		GL_TEXTURE_CUBE_MAP_POSITIVE_X,
510		GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
511
512		GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
513		GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
514
515		GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
516		GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
517	};
518
519	return de::getSizedArrayElement<6>(cubeFaces, ndx);
520}
521
522deUint32 getFormatForInternalFormat (deUint32 format)
523{
524	return glu::getTransferFormat(glu::mapGLInternalFormat(format)).format;
525}
526
527void genericTexImage (const glw::Functions&	gl,
528					  deUint32				target,
529					  int					faceNdx,
530					  int					level,
531					  const IVec3&			size,
532					  deUint32				format,
533					  size_t				dataSize,
534					  const void*			data)
535{
536	const deUint32 glTarget = (target == GL_TEXTURE_CUBE_MAP ? mapFaceNdxToFace(faceNdx) : target);
537
538	DE_ASSERT(target == GL_TEXTURE_CUBE_MAP || faceNdx == 0);
539
540	if (glu::isCompressedFormat(format))
541	{
542		switch (getTargetTexDims(target))
543		{
544			case 2:
545				DE_ASSERT(size.z() == 1);
546				gl.compressedTexImage2D(glTarget, level, format, (glw::GLsizei)size.x(), (glw::GLsizei)size.y(), 0, (glw::GLsizei)dataSize, data);
547				GLU_EXPECT_NO_ERROR(gl.getError(), "glCompressedTexImage2D failed.");
548				break;
549
550			case 3:
551				gl.compressedTexImage3D(glTarget, level, format, (glw::GLsizei)size.x(), (glw::GLsizei)size.y(), (glw::GLsizei)size.z(), 0, (glw::GLsizei)dataSize, data);
552				GLU_EXPECT_NO_ERROR(gl.getError(), "glCompressedTexImage3D failed.");
553				break;
554
555			default:
556				DE_ASSERT(false);
557		}
558	}
559	else
560	{
561		const deUint32	glFormat	= getFormatForInternalFormat(format);
562		const deUint32	glType		= getTypeForInternalFormat(format);
563
564		switch (getTargetTexDims(target))
565		{
566			case 2:
567				DE_ASSERT(size.z() == 1);
568				gl.texImage2D(glTarget, level, format, (glw::GLsizei)size.x(), (glw::GLsizei)size.y(), 0, glFormat, glType, data);
569				GLU_EXPECT_NO_ERROR(gl.getError(), "glTexImage2D failed.");
570				break;
571
572			case 3:
573				gl.texImage3D(glTarget, level, format, (glw::GLsizei)size.x(), (glw::GLsizei)size.y(), (glw::GLsizei)size.z(), 0, glFormat, glType, data);
574				GLU_EXPECT_NO_ERROR(gl.getError(), "glTexImage3D failed.");
575				break;
576
577			default:
578				DE_ASSERT(false);
579		}
580	}
581}
582
583void genTextureImage (const glw::Functions&				gl,
584					  de::Random&						rng,
585					  deUint32							name,
586					  vector<ArrayBuffer<deUint8> >&	levels,
587					  const ImageInfo&					info,
588					  deUint32							moreRestrictiveFormat)
589{
590	const int		texelBlockSize			= getTexelBlockSize(info.getFormat());
591	const IVec3		texelBlockPixelSize		= getTexelBlockPixelSize(info.getFormat());
592
593	levels.resize(getLevelCount(info));
594
595	gl.pixelStorei(GL_UNPACK_ALIGNMENT, 1);
596	GLU_EXPECT_NO_ERROR(gl.getError(), "Setting pixel store aligment failed.");
597
598	gl.bindTexture(info.getTarget(), name);
599	GLU_EXPECT_NO_ERROR(gl.getError(), "Binding texture failed.");
600
601	for (int levelNdx = 0; levelNdx < getLevelCount(info); levelNdx++)
602	{
603		ArrayBuffer<deUint8>&	level					= levels[levelNdx];
604
605		const int				faceCount				= (info.getTarget() == GL_TEXTURE_CUBE_MAP ? 6 : 1);
606
607		const IVec3				levelPixelSize			= getLevelSize(info.getTarget(), info.getSize(), levelNdx);
608		const IVec3				levelTexelBlockSize		= divRoundUp(levelPixelSize, texelBlockPixelSize);
609		const int				levelTexelBlockCount	= levelTexelBlockSize.x() * levelTexelBlockSize.y() * levelTexelBlockSize.z();
610		const int				levelSize				= levelTexelBlockCount * texelBlockSize;
611
612		level.setStorage(levelSize * faceCount);
613
614		for (int faceNdx = 0; faceNdx < faceCount; faceNdx++)
615		{
616			genTexel(rng, moreRestrictiveFormat, texelBlockSize, levelTexelBlockCount, level.getElementPtr(faceNdx * levelSize));
617
618			genericTexImage(gl, info.getTarget(), faceNdx, levelNdx, levelPixelSize, info.getFormat(), levelSize, level.getElementPtr(faceNdx * levelSize));
619		}
620	}
621
622	gl.texParameteri(info.getTarget(), GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
623	gl.texParameteri(info.getTarget(), GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
624
625	if (info.getTarget() == GL_TEXTURE_3D)
626		gl.texParameteri(info.getTarget(), GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
627
628	gl.texParameteri(info.getTarget(), GL_TEXTURE_MIN_FILTER, GL_NEAREST);
629	gl.texParameteri(info.getTarget(), GL_TEXTURE_MAG_FILTER, GL_NEAREST);
630	GLU_EXPECT_NO_ERROR(gl.getError(), "Setting texture parameters failed");
631
632	gl.bindTexture(info.getTarget(), 0);
633	GLU_EXPECT_NO_ERROR(gl.getError(), "Unbinding texture failed.");
634}
635
636void genRenderbufferImage (const glw::Functions&			gl,
637						   de::Random&						rng,
638						   deUint32							name,
639						   vector<ArrayBuffer<deUint8> >&	levels,
640						   const ImageInfo&					info,
641						   deUint32							moreRestrictiveFormat)
642{
643	const IVec3					size	= info.getSize();
644	const tcu::TextureFormat	format	= glu::mapGLInternalFormat(info.getFormat());
645
646	DE_ASSERT(info.getTarget() == GL_RENDERBUFFER);
647	DE_ASSERT(info.getSize().z() == 1);
648	DE_ASSERT(getLevelCount(info) == 1);
649	DE_ASSERT(!glu::isCompressedFormat(info.getFormat()));
650
651	glu::Framebuffer framebuffer(gl);
652
653	levels.resize(1);
654	levels[0].setStorage(format.getPixelSize() * size.x() * size.y());
655	tcu::PixelBufferAccess refAccess(format, size.x(), size.y(), 1, levels[0].getPtr());
656
657	gl.bindRenderbuffer(GL_RENDERBUFFER, name);
658	gl.renderbufferStorage(GL_RENDERBUFFER, info.getFormat(), info.getSize().x(), info.getSize().y());
659	GLU_EXPECT_NO_ERROR(gl.getError(), "Binding and setting storage for renderbuffer failed.");
660
661	gl.bindFramebuffer(GL_FRAMEBUFFER, *framebuffer);
662	gl.framebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, name);
663	GLU_EXPECT_NO_ERROR(gl.getError(), "Binding framebuffer and attaching renderbuffer failed.");
664
665	{
666		vector<deUint8> texelBlock(format.getPixelSize());
667
668		if (isFixedPointFormat(info.getFormat()))
669		{
670			// All zeroes is only bit pattern that fixed point values can be
671			// cleared to and that is valid floating point value.
672			if (isFloatFormat(moreRestrictiveFormat))
673				deMemset(&texelBlock[0], 0x0, texelBlock.size());
674			else
675			{
676				// Fixed point values can be only cleared to all 0 or 1.
677				const deInt32 fill = rng.getBool() ? 0xFF : 0x0;
678				deMemset(&texelBlock[0], fill, texelBlock.size());
679			}
680		}
681		else
682			genTexel(rng, moreRestrictiveFormat, format.getPixelSize(), 1, &(texelBlock[0]));
683
684		{
685			const tcu::ConstPixelBufferAccess texelAccess (format, 1, 1, 1, &(texelBlock[0]));
686
687			if (isIntFormat(info.getFormat()))
688			{
689				const tcu::IVec4 color = texelAccess.getPixelInt(0, 0, 0);
690
691				gl.clearBufferiv(GL_COLOR, 0, (const deInt32*)&color);
692				GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to clear renderbuffer.");
693
694				DE_ASSERT(!tcu::isSRGB(format));
695				tcu::clear(refAccess, color);
696			}
697			else if (isUintFormat(info.getFormat()))
698			{
699				const tcu::IVec4 color = texelAccess.getPixelInt(0, 0, 0);
700
701				gl.clearBufferuiv(GL_COLOR, 0, (const deUint32*)&color);
702				GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to clear renderbuffer.");
703
704				DE_ASSERT(!tcu::isSRGB(format));
705				tcu::clear(refAccess, color);
706			}
707			else
708			{
709				const tcu::Vec4 rawColor	= texelAccess.getPixel(0, 0, 0);
710				const tcu::Vec4 linearColor	= (tcu::isSRGB(format) ? tcu::sRGBToLinear(rawColor) : rawColor);
711
712				// rawColor bit pattern has been chosen to be "safe" in the destination format. For sRGB
713				// formats, the clear color is in linear space. Since we want the resulting bit pattern
714				// to be safe after implementation linear->sRGB transform, we must apply the inverting
715				// transform to the clear color.
716
717				if (isFloatFormat(info.getFormat()))
718				{
719					gl.clearBufferfv(GL_COLOR, 0, (const float*)&linearColor);
720				}
721				else
722				{
723					// fixed-point
724					gl.clearColor(linearColor.x(), linearColor.y(), linearColor.z(), linearColor.w());
725					gl.clear(GL_COLOR_BUFFER_BIT);
726				}
727				GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to clear renderbuffer.");
728
729				tcu::clear(refAccess, rawColor);
730			}
731		}
732	}
733
734	gl.bindRenderbuffer(GL_RENDERBUFFER, 0);
735	gl.bindFramebuffer(GL_FRAMEBUFFER, 0);
736	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to unbind renderbufer and framebuffer.");
737}
738
739void genImage (const glw::Functions&			gl,
740			   de::Random&						rng,
741			   deUint32							name,
742			   vector<ArrayBuffer<deUint8> >&	levels,
743			   const ImageInfo&					info,
744			   deUint32							moreRestrictiveFormat)
745{
746	if (isTextureTarget(info.getTarget()))
747		genTextureImage(gl, rng, name, levels, info, moreRestrictiveFormat);
748	else
749		genRenderbufferImage(gl, rng, name, levels, info, moreRestrictiveFormat);
750}
751
752IVec3 getTexelBlockStride (const ImageInfo& info, int level)
753{
754	const IVec3	size					= getLevelSize(info.getTarget(), info.getSize(), level);
755	const int	texelBlockSize			= getTexelBlockSize(info.getFormat());
756	const IVec3 texelBlockPixelSize		= getTexelBlockPixelSize(info.getFormat());
757	const IVec3 textureTexelBlockSize	= divRoundUp(size, texelBlockPixelSize);
758
759	return IVec3(texelBlockSize, textureTexelBlockSize.x() * texelBlockSize, textureTexelBlockSize.x() * textureTexelBlockSize.y() * texelBlockSize);
760}
761
762int sumComponents (const IVec3& v)
763{
764	int s = 0;
765
766	for (int i = 0; i < 3; i++)
767		s += v[i];
768
769	return s;
770}
771
772void copyImageData (vector<ArrayBuffer<deUint8> >&			dstImageData,
773					const ImageInfo&						dstImageInfo,
774					int										dstLevel,
775					const IVec3&							dstPos,
776
777					const vector<ArrayBuffer<deUint8> >&	srcImageData,
778					const ImageInfo&						srcImageInfo,
779					int										srcLevel,
780					const IVec3&							srcPos,
781
782					const IVec3&							copySize)
783{
784	const ArrayBuffer<deUint8>&	srcLevelData			= srcImageData[srcLevel];
785	ArrayBuffer<deUint8>&		dstLevelData			= dstImageData[dstLevel];
786
787	const IVec3					srcTexelBlockPixelSize	= getTexelBlockPixelSize(srcImageInfo.getFormat());
788	const int					srcTexelBlockSize		= getTexelBlockSize(srcImageInfo.getFormat());
789	const IVec3					srcTexelPos				= srcPos / srcTexelBlockPixelSize;
790	const IVec3					srcTexelBlockStride		= getTexelBlockStride(srcImageInfo, srcLevel);
791
792	const IVec3					dstTexelBlockPixelSize	= getTexelBlockPixelSize(dstImageInfo.getFormat());
793	const int					dstTexelBlockSize		= getTexelBlockSize(dstImageInfo.getFormat());
794	const IVec3					dstTexelPos				= dstPos / dstTexelBlockPixelSize;
795	const IVec3					dstTexelBlockStride		= getTexelBlockStride(dstImageInfo, dstLevel);
796
797	const IVec3					copyTexelBlockCount		= copySize / srcTexelBlockPixelSize;
798	const int					texelBlockSize			= srcTexelBlockSize;
799
800	DE_ASSERT(srcTexelBlockSize == dstTexelBlockSize);
801	DE_UNREF(dstTexelBlockSize);
802
803	DE_ASSERT((copySize.x() % srcTexelBlockPixelSize.x()) == 0);
804	DE_ASSERT((copySize.y() % srcTexelBlockPixelSize.y()) == 0);
805	DE_ASSERT((copySize.z() % srcTexelBlockPixelSize.z()) == 0);
806
807	DE_ASSERT((srcPos.x() % srcTexelBlockPixelSize.x()) == 0);
808	DE_ASSERT((srcPos.y() % srcTexelBlockPixelSize.y()) == 0);
809	DE_ASSERT((srcPos.z() % srcTexelBlockPixelSize.z()) == 0);
810
811	for (int z = 0; z < copyTexelBlockCount.z(); z++)
812	for (int y = 0; y < copyTexelBlockCount.y(); y++)
813	{
814		const IVec3				blockPos		(0, y, z);
815		const deUint8* const	srcPtr			= srcLevelData.getElementPtr(sumComponents((srcTexelPos + blockPos) * srcTexelBlockStride));
816		deUint8* const			dstPtr			= dstLevelData.getElementPtr(sumComponents((dstTexelPos + blockPos) * dstTexelBlockStride));
817		const int				copyLineSize	= copyTexelBlockCount.x() * texelBlockSize;
818
819		deMemcpy(dstPtr, srcPtr, copyLineSize);
820	}
821}
822
823vector<tcu::ConstPixelBufferAccess> getLevelAccesses (const vector<ArrayBuffer<deUint8> >& data, const ImageInfo& info)
824{
825	const tcu::TextureFormat			format	= glu::mapGLInternalFormat(info.getFormat());
826	const IVec3							size	= info.getSize();
827
828	vector<tcu::ConstPixelBufferAccess>	result;
829
830	DE_ASSERT((int)data.size() == getLevelCount(info));
831
832	for (int level = 0; level < (int)data.size(); level++)
833	{
834		const IVec3 levelSize = getLevelSize(info.getTarget(), size, level);
835
836		result.push_back(tcu::ConstPixelBufferAccess(format, levelSize.x(), levelSize.y(), levelSize.z(), data[level].getPtr()));
837	}
838
839	return result;
840}
841
842vector<tcu::ConstPixelBufferAccess> getCubeLevelAccesses (const vector<ArrayBuffer<deUint8> >&	data,
843														  const ImageInfo&						info,
844														  int									faceNdx)
845{
846	const tcu::TextureFormat			format				= glu::mapGLInternalFormat(info.getFormat());
847	const IVec3							size				= info.getSize();
848	const int							texelBlockSize		= getTexelBlockSize(info.getFormat());
849	const IVec3							texelBlockPixelSize = getTexelBlockPixelSize(info.getFormat());
850	vector<tcu::ConstPixelBufferAccess>	result;
851
852	DE_ASSERT(info.getTarget() == GL_TEXTURE_CUBE_MAP);
853	DE_ASSERT((int)data.size() == getLevelCount(info));
854
855	for (int level = 0; level < (int)data.size(); level++)
856	{
857		const IVec3 levelPixelSize			= getLevelSize(info.getTarget(), size, level);
858		const IVec3	levelTexelBlockSize		= divRoundUp(levelPixelSize, texelBlockPixelSize);
859		const int	levelTexelBlockCount	= levelTexelBlockSize.x() * levelTexelBlockSize.y() * levelTexelBlockSize.z();
860		const int	levelSize				= levelTexelBlockCount * texelBlockSize;
861
862		result.push_back(tcu::ConstPixelBufferAccess(format, levelPixelSize.x(), levelPixelSize.y(), levelPixelSize.z(), data[level].getElementPtr(levelSize * faceNdx)));
863	}
864
865	return result;
866}
867
868void copyImage (const glw::Functions&					gl,
869
870				deUint32								dstName,
871				vector<ArrayBuffer<deUint8> >&			dstImageData,
872				const ImageInfo&						dstImageInfo,
873				int										dstLevel,
874				const IVec3&							dstPos,
875
876				deUint32								srcName,
877				const vector<ArrayBuffer<deUint8> >&	srcImageData,
878				const ImageInfo&						srcImageInfo,
879				int										srcLevel,
880				const IVec3&							srcPos,
881
882				const IVec3&							copySize)
883{
884	gl.copyImageSubData(srcName, srcImageInfo.getTarget(), srcLevel, srcPos.x(), srcPos.y(), srcPos.z(),
885						dstName, dstImageInfo.getTarget(), dstLevel, dstPos.x(), dstPos.y(), dstPos.z(),
886						copySize.x(), copySize.y(), copySize.z());
887
888	GLU_EXPECT_NO_ERROR(gl.getError(), "glCopyImageSubData failed.");
889
890	copyImageData(dstImageData, dstImageInfo, dstLevel, dstPos,
891				  srcImageData, srcImageInfo, srcLevel, srcPos, copySize);
892}
893
894void verifyTexture2DView (tcu::TestContext&			testContext,
895						  glu::RenderContext&		renderContext,
896						  TextureRenderer&			renderer,
897						  tcu::ResultCollector&		results,
898						  de::Random&				rng,
899						  deUint32					name,
900						  const ImageInfo&			info,
901						  const tcu::Texture2DView&	refTexture)
902{
903	tcu::TestLog&					log				= testContext.getLog();
904	const glw::Functions&			gl				= renderContext.getFunctions();
905	const tcu::RGBA					threshold		= renderContext.getRenderTarget().getPixelFormat().getColorThreshold() + tcu::RGBA(1,1,1,1);
906	const tcu::TextureFormat		format			= refTexture.getLevel(0).getFormat();
907	const tcu::TextureFormatInfo	spec			= tcu::getTextureFormatInfo(format);
908
909	ReferenceParams					renderParams	(TEXTURETYPE_2D);
910
911	renderParams.samplerType	= getSamplerType(format);
912	renderParams.sampler		= Sampler(Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::NEAREST_MIPMAP_NEAREST, Sampler::NEAREST);
913	renderParams.colorScale		= spec.lookupScale;
914	renderParams.colorBias		= spec.lookupBias;
915
916	gl.activeTexture(GL_TEXTURE0);
917	gl.bindTexture(GL_TEXTURE_2D, name);
918	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to bind texture.");
919
920	gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
921	gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
922	gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
923	gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
924	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to setup texture filtering state.");
925
926	for (int level = 0; level < getLevelCount(info); level++)
927	{
928		const IVec3				levelSize		= getLevelSize(info.getTarget(), info.getSize(), level);
929		const RandomViewport	viewport		(renderContext.getRenderTarget(), levelSize.x(), levelSize.y(), rng.getUint32());
930
931		vector<float>			texCoord;
932		tcu::Surface			renderedFrame	(viewport.width, viewport.height);
933		tcu::Surface			referenceFrame	(viewport.width, viewport.height);
934
935		renderParams.baseLevel	= level;
936		renderParams.maxLevel	= level;
937
938		gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, level);
939		gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, level);
940
941		computeQuadTexCoord2D(texCoord, tcu::Vec2(0.0f, 0.0f), tcu::Vec2(1.0f, 1.0f));
942
943		// Setup base viewport.
944		gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
945
946		// Draw.
947		renderer.renderQuad(0, &texCoord[0], renderParams);
948		glu::readPixels(renderContext, viewport.x, viewport.y, renderedFrame.getAccess());
949		GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to render and read pixels.");
950
951		// Compute reference.
952		sampleTexture(tcu::SurfaceAccess(referenceFrame, renderContext.getRenderTarget().getPixelFormat()), refTexture, &texCoord[0], renderParams);
953
954		// Compare and log.
955		if (!pixelThresholdCompare(log, ("Level" + de::toString(level)).c_str(), ("Render level " + de::toString(level)).c_str(), referenceFrame, renderedFrame, threshold, tcu::COMPARE_LOG_ON_ERROR))
956			results.fail("Image comparison of level " + de::toString(level) + " failed.");
957		else
958			log << TestLog::Message << "Image comparison of level " << level << " passed." << TestLog::EndMessage;
959	}
960
961	gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
962	gl.texParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 1000);
963
964	gl.bindTexture(GL_TEXTURE_2D, 0);
965	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to unbind texture.");
966}
967
968void decompressTextureLevel (const tcu::TexDecompressionParams&		params,
969							 ArrayBuffer<deUint8>&					levelData,
970							 tcu::PixelBufferAccess&				levelAccess,
971							 const tcu::CompressedTexFormat&		compressedFormat,
972							 const tcu::TextureFormat&				decompressedFormat,
973							 const IVec3&							levelPixelSize,
974							 const void*							data)
975{
976	levelData.setStorage(levelPixelSize.x() * levelPixelSize.y() * levelPixelSize.z() * decompressedFormat.getPixelSize());
977	levelAccess = tcu::PixelBufferAccess(decompressedFormat, levelPixelSize.x(), levelPixelSize.y(), levelPixelSize.z(), levelData.getPtr());
978
979	tcu::decompress(levelAccess, compressedFormat, (const deUint8*)data, params);
980}
981
982void decompressTexture (vector<ArrayBuffer<deUint8> >&			levelDatas,
983						vector<tcu::PixelBufferAccess>&			levelAccesses,
984						glu::RenderContext&						renderContext,
985						const ImageInfo&						info,
986						const vector<ArrayBuffer<deUint8> >&	data)
987{
988	const tcu::CompressedTexFormat	compressedFormat	= glu::mapGLCompressedTexFormat(info.getFormat());
989	const tcu::TextureFormat		decompressedFormat	= tcu::getUncompressedFormat(compressedFormat);
990	const IVec3						size				= info.getSize();
991	const bool						isES32				= glu::contextSupports(renderContext.getType(), glu::ApiType::es(3, 2));
992
993	de::UniquePtr<glu::ContextInfo>	ctxInfo				(glu::ContextInfo::create(renderContext));
994	tcu::TexDecompressionParams		decompressParams;
995
996	if (tcu::isAstcFormat(compressedFormat))
997	{
998		if (ctxInfo->isExtensionSupported("GL_KHR_texture_compression_astc_hdr") && !tcu::isAstcSRGBFormat(compressedFormat))
999			decompressParams = tcu::TexDecompressionParams(tcu::TexDecompressionParams::ASTCMODE_HDR);
1000		else if (isES32 || ctxInfo->isExtensionSupported("GL_KHR_texture_compression_astc_ldr"))
1001			decompressParams = tcu::TexDecompressionParams(tcu::TexDecompressionParams::ASTCMODE_LDR);
1002		else
1003			DE_ASSERT(false);
1004	}
1005
1006	levelDatas.resize(getLevelCount(info));
1007	levelAccesses.resize(getLevelCount(info));
1008
1009	for (int level = 0; level < getLevelCount(info); level++)
1010	{
1011		const IVec3					levelPixelSize	= getLevelSize(info.getTarget(), size, level);
1012		de::ArrayBuffer<deUint8>&	levelData		= levelDatas[level];
1013		tcu::PixelBufferAccess&		levelAccess		= levelAccesses[level];
1014
1015		decompressTextureLevel(decompressParams, levelData, levelAccess, compressedFormat, decompressedFormat, levelPixelSize, data[level].getPtr());
1016	}
1017}
1018
1019void verifyTexture2D (tcu::TestContext&						testContext,
1020					  glu::RenderContext&					renderContext,
1021					  TextureRenderer&						textureRenderer,
1022					  tcu::ResultCollector&					results,
1023					  de::Random&							rng,
1024					  deUint32								name,
1025					  const vector<ArrayBuffer<deUint8> >&	data,
1026					  const ImageInfo&						info)
1027{
1028	if (glu::isCompressedFormat(info.getFormat()))
1029	{
1030		vector<de::ArrayBuffer<deUint8> >	levelDatas;
1031		vector<tcu::PixelBufferAccess>		levelAccesses;
1032
1033		decompressTexture(levelDatas, levelAccesses, renderContext, info, data);
1034
1035		{
1036			const tcu::Texture2DView refTexture((int)levelAccesses.size(), &(levelAccesses[0]));
1037
1038			verifyTexture2DView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1039		}
1040	}
1041	else
1042	{
1043		const vector<tcu::ConstPixelBufferAccess>	levelAccesses	= getLevelAccesses(data, info);
1044		const tcu::Texture2DView					refTexture		((int)levelAccesses.size(), &(levelAccesses[0]));
1045
1046		verifyTexture2DView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1047	}
1048}
1049
1050void verifyTexture3DView (tcu::TestContext&			testContext,
1051						  glu::RenderContext&		renderContext,
1052						  TextureRenderer&			renderer,
1053						  tcu::ResultCollector&		results,
1054						  de::Random&				rng,
1055						  deUint32					name,
1056						  const ImageInfo&			info,
1057						  const tcu::Texture3DView&	refTexture)
1058{
1059	tcu::TestLog&					log				= testContext.getLog();
1060	const glw::Functions&			gl				= renderContext.getFunctions();
1061	const tcu::RGBA					threshold		= renderContext.getRenderTarget().getPixelFormat().getColorThreshold() + tcu::RGBA(1,1,1,1);
1062	const tcu::TextureFormat		format			= refTexture.getLevel(0).getFormat();
1063	const tcu::TextureFormatInfo	spec			= tcu::getTextureFormatInfo(format);
1064
1065	ReferenceParams					renderParams	(TEXTURETYPE_3D);
1066
1067	renderParams.samplerType	= getSamplerType(format);
1068	renderParams.sampler		= Sampler(Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::NEAREST_MIPMAP_NEAREST, Sampler::NEAREST);
1069	renderParams.colorScale		= spec.lookupScale;
1070	renderParams.colorBias		= spec.lookupBias;
1071
1072	gl.activeTexture(GL_TEXTURE0);
1073	gl.bindTexture(GL_TEXTURE_3D, name);
1074	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to bind texture.");
1075
1076	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
1077	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
1078	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
1079	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
1080	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1081	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to setup texture filtering state.");
1082
1083	for (int level = 0; level < getLevelCount(info); level++)
1084	{
1085		const IVec3 levelSize = getLevelSize(info.getTarget(), info.getSize(), level);
1086
1087		renderParams.baseLevel	= level;
1088		renderParams.maxLevel	= level;
1089
1090		gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_BASE_LEVEL, level);
1091		gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAX_LEVEL, level);
1092
1093		for (int slice = 0; slice < levelSize.z(); slice++)
1094		{
1095			const RandomViewport	viewport		(renderContext.getRenderTarget(), levelSize.x(), levelSize.y(), rng.getUint32());
1096			const float				r				= (float(slice) + 0.5f) / (float)levelSize.z();
1097			tcu::Surface			renderedFrame	(viewport.width, viewport.height);
1098			tcu::Surface			referenceFrame	(viewport.width, viewport.height);
1099			vector<float>			texCoord;
1100
1101			computeQuadTexCoord3D(texCoord, tcu::Vec3(0.0f, 0.0f, r), tcu::Vec3(1.0f, 1.0f, r), tcu::IVec3(0, 1, 2));
1102
1103			// Setup base viewport.
1104			gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
1105
1106			// Draw.
1107			renderer.renderQuad(0, &texCoord[0], renderParams);
1108			glu::readPixels(renderContext, viewport.x, viewport.y, renderedFrame.getAccess());
1109			GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to render and read pixels.");
1110
1111			// Compute reference.
1112			sampleTexture(tcu::SurfaceAccess(referenceFrame, renderContext.getRenderTarget().getPixelFormat()), refTexture, &texCoord[0], renderParams);
1113
1114			// Compare and log.
1115			if (!pixelThresholdCompare(log, ("Level" + de::toString(level) + "Slice" + de::toString(slice)).c_str(), ("Render level " + de::toString(level) + ", Slice" + de::toString(slice)).c_str(), referenceFrame, renderedFrame, threshold, tcu::COMPARE_LOG_ON_ERROR))
1116				results.fail("Image comparison of level " + de::toString(level) + " and slice " + de::toString(slice) + " failed.");
1117			else
1118				log << TestLog::Message << "Image comparison of level " << level << " and slice " << slice << " passed." << TestLog::EndMessage;;
1119		}
1120	}
1121
1122	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_BASE_LEVEL, 0);
1123	gl.texParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAX_LEVEL, 1000);
1124
1125	gl.bindTexture(GL_TEXTURE_3D, 0);
1126	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to unbind texture.");
1127}
1128
1129void verifyTexture3D (tcu::TestContext&						testContext,
1130					  glu::RenderContext&					renderContext,
1131					  TextureRenderer&						textureRenderer,
1132					  tcu::ResultCollector&					results,
1133					  de::Random&							rng,
1134					  deUint32								name,
1135					  const vector<ArrayBuffer<deUint8> >&	data,
1136					  const ImageInfo&						info)
1137{
1138	if (glu::isCompressedFormat(info.getFormat()))
1139	{
1140		vector<de::ArrayBuffer<deUint8> >	levelDatas;
1141		vector<tcu::PixelBufferAccess>		levelAccesses;
1142
1143		decompressTexture(levelDatas, levelAccesses, renderContext, info, data);
1144
1145		{
1146			const tcu::Texture3DView refTexture((int)levelAccesses.size(), &(levelAccesses[0]));
1147
1148			verifyTexture3DView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1149		}
1150	}
1151	else
1152	{
1153		const vector<tcu::ConstPixelBufferAccess>	levelAccesses	= getLevelAccesses(data, info);
1154		const tcu::Texture3DView					refTexture		((int)levelAccesses.size(), &(levelAccesses[0]));
1155
1156		verifyTexture3DView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1157	}
1158}
1159
1160void verifyTextureCubemapView (tcu::TestContext&			testContext,
1161							   glu::RenderContext&			renderContext,
1162							   TextureRenderer&				renderer,
1163							   tcu::ResultCollector&		results,
1164							   de::Random&					rng,
1165							   deUint32						name,
1166							   const ImageInfo&				info,
1167							   const tcu::TextureCubeView&	refTexture)
1168{
1169	tcu::TestLog&					log				= testContext.getLog();
1170	const glw::Functions&			gl				= renderContext.getFunctions();
1171	const tcu::RGBA					threshold		= renderContext.getRenderTarget().getPixelFormat().getColorThreshold() + tcu::RGBA(1,1,1,1);
1172	const tcu::TextureFormat		format			= refTexture.getLevelFace(0, tcu::CUBEFACE_POSITIVE_X).getFormat();
1173	const tcu::TextureFormatInfo	spec			= tcu::getTextureFormatInfo(format);
1174
1175	ReferenceParams					renderParams	(TEXTURETYPE_CUBE);
1176
1177	renderParams.samplerType	= getSamplerType(format);
1178	renderParams.sampler		= Sampler(Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::NEAREST_MIPMAP_NEAREST, Sampler::NEAREST);
1179	renderParams.colorScale		= spec.lookupScale;
1180	renderParams.colorBias		= spec.lookupBias;
1181
1182	gl.activeTexture(GL_TEXTURE0);
1183	gl.bindTexture(GL_TEXTURE_CUBE_MAP, name);
1184	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to bind texture.");
1185
1186	gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
1187	gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
1188	gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
1189	gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1190	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to setup texture filtering state.");
1191
1192	for (int level = 0; level < getLevelCount(info); level++)
1193	{
1194		const IVec3 levelSize = getLevelSize(info.getTarget(), info.getSize(), level);
1195
1196		// \note It seems we can't reliably sample two smallest texture levels with cubemaps
1197		if (levelSize.x() < 4 && levelSize.y() < 4)
1198			continue;
1199
1200		renderParams.baseLevel	= level;
1201		renderParams.maxLevel	= level;
1202
1203		gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_BASE_LEVEL, level);
1204		gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, level);
1205
1206		for (int face = 0; face < 6; face++)
1207		{
1208			const RandomViewport	viewport		(renderContext.getRenderTarget(), levelSize.x(), levelSize.y(), rng.getUint32());
1209			const string			cubemapFaceName	= glu::getCubeMapFaceStr(mapFaceNdxToFace(face)).toString();
1210			tcu::Surface			renderedFrame	(viewport.width, viewport.height);
1211			tcu::Surface			referenceFrame	(viewport.width, viewport.height);
1212			vector<float>			texCoord;
1213
1214			computeQuadTexCoordCube(texCoord, glu::getCubeFaceFromGL(mapFaceNdxToFace(face)));
1215
1216			// Setup base viewport.
1217			gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
1218
1219			// Draw.
1220			renderer.renderQuad(0, &texCoord[0], renderParams);
1221			glu::readPixels(renderContext, viewport.x, viewport.y, renderedFrame.getAccess());
1222			GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to render and read pixels.");
1223
1224			// Compute reference.
1225			sampleTexture(tcu::SurfaceAccess(referenceFrame, renderContext.getRenderTarget().getPixelFormat()), refTexture, &texCoord[0], renderParams);
1226
1227			// Compare and log.
1228			if (!pixelThresholdCompare(log, ("Level" + de::toString(level) + "Face" + cubemapFaceName).c_str(), ("Render level " + de::toString(level) + ", Face " + cubemapFaceName).c_str(), referenceFrame, renderedFrame, threshold, tcu::COMPARE_LOG_ON_ERROR))
1229				results.fail("Image comparison of level " + de::toString(level) + " and face " + cubemapFaceName + " failed.");
1230			else
1231				log << TestLog::Message << "Image comparison of level " << level << " and face " << cubemapFaceName << " passed." << TestLog::EndMessage;
1232		}
1233	}
1234
1235	gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_BASE_LEVEL, 0);
1236	gl.texParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_LEVEL, 1000);
1237
1238	gl.bindTexture(GL_TEXTURE_CUBE_MAP, 0);
1239	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to unbind texture.");
1240}
1241
1242void verifyTextureCubemap (tcu::TestContext&					testContext,
1243						   glu::RenderContext&					renderContext,
1244						   TextureRenderer&						textureRenderer,
1245						   tcu::ResultCollector&				results,
1246						   de::Random&							rng,
1247						   deUint32								name,
1248						   const vector<ArrayBuffer<deUint8> >&	data,
1249						   const ImageInfo&						info)
1250{
1251	if (glu::isCompressedFormat(info.getFormat()))
1252	{
1253		const tcu::CompressedTexFormat&	compressedFormat	= glu::mapGLCompressedTexFormat(info.getFormat());
1254		const tcu::TextureFormat&		decompressedFormat	= tcu::getUncompressedFormat(compressedFormat);
1255
1256		const int						texelBlockSize		= getTexelBlockSize(info.getFormat());
1257		const IVec3						texelBlockPixelSize = getTexelBlockPixelSize(info.getFormat());
1258
1259		const bool						isES32				= glu::contextSupports(renderContext.getType(), glu::ApiType::es(3, 2));
1260
1261		vector<tcu::PixelBufferAccess>	levelAccesses[6];
1262		vector<ArrayBuffer<deUint8> >	levelDatas[6];
1263		de::UniquePtr<glu::ContextInfo>	ctxInfo				(glu::ContextInfo::create(renderContext));
1264		tcu::TexDecompressionParams		decompressParams;
1265
1266		if (tcu::isAstcFormat(compressedFormat))
1267		{
1268			if (ctxInfo->isExtensionSupported("GL_KHR_texture_compression_astc_hdr") && !tcu::isAstcSRGBFormat(compressedFormat))
1269				decompressParams = tcu::TexDecompressionParams(tcu::TexDecompressionParams::ASTCMODE_HDR);
1270			else if (isES32 || ctxInfo->isExtensionSupported("GL_KHR_texture_compression_astc_ldr"))
1271				decompressParams = tcu::TexDecompressionParams(tcu::TexDecompressionParams::ASTCMODE_LDR);
1272			else
1273				DE_ASSERT(false);
1274		}
1275
1276		for (int faceNdx = 0; faceNdx < 6; faceNdx++)
1277		{
1278			levelAccesses[faceNdx].resize(getLevelCount(info));
1279			levelDatas[faceNdx].resize(getLevelCount(info));
1280		}
1281
1282		for (int level = 0; level < getLevelCount(info); level++)
1283		{
1284			for (int faceNdx = 0; faceNdx < 6; faceNdx++)
1285			{
1286				const IVec3				levelPixelSize			= getLevelSize(info.getTarget(), info.getSize(), level);
1287				const IVec3				levelTexelBlockSize		= divRoundUp(levelPixelSize, texelBlockPixelSize);
1288				const int				levelTexelBlockCount	= levelTexelBlockSize.x() * levelTexelBlockSize.y() * levelTexelBlockSize.z();
1289				const int				levelSize				= levelTexelBlockCount * texelBlockSize;
1290
1291				const deUint8*			dataPtr					= data[level].getElementPtr(faceNdx * levelSize);
1292				tcu::PixelBufferAccess& levelAccess				= levelAccesses[faceNdx][level];
1293				ArrayBuffer<deUint8>&	levelData				= levelDatas[faceNdx][level];
1294
1295				decompressTextureLevel(decompressParams, levelData, levelAccess, compressedFormat, decompressedFormat, levelPixelSize, dataPtr);
1296			}
1297		}
1298
1299		const tcu::ConstPixelBufferAccess* levels[6];
1300
1301		for (int faceNdx = 0; faceNdx < 6; faceNdx++)
1302			levels[glu::getCubeFaceFromGL(mapFaceNdxToFace(faceNdx))] = &(levelAccesses[faceNdx][0]);
1303
1304		{
1305			const tcu::TextureCubeView refTexture(getLevelCount(info), levels);
1306
1307			verifyTextureCubemapView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1308		}
1309	}
1310	else
1311	{
1312		const vector<tcu::ConstPixelBufferAccess> levelAccesses[6] =
1313		{
1314			getCubeLevelAccesses(data, info, 0),
1315			getCubeLevelAccesses(data, info, 1),
1316			getCubeLevelAccesses(data, info, 2),
1317			getCubeLevelAccesses(data, info, 3),
1318			getCubeLevelAccesses(data, info, 4),
1319			getCubeLevelAccesses(data, info, 5),
1320		};
1321
1322		const tcu::ConstPixelBufferAccess* levels[6];
1323
1324		for (int faceNdx = 0; faceNdx < 6; faceNdx++)
1325			levels[glu::getCubeFaceFromGL(mapFaceNdxToFace(faceNdx))] = &(levelAccesses[faceNdx][0]);
1326
1327		{
1328			const tcu::TextureCubeView refTexture(getLevelCount(info), levels);
1329
1330			verifyTextureCubemapView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1331		}
1332	}
1333}
1334
1335void verifyTexture2DArrayView (tcu::TestContext&				testContext,
1336							   glu::RenderContext&				renderContext,
1337							   TextureRenderer&					renderer,
1338							   tcu::ResultCollector&			results,
1339							   de::Random&						rng,
1340							   deUint32							name,
1341							   const ImageInfo&					info,
1342							   const tcu::Texture2DArrayView&	refTexture)
1343{
1344	tcu::TestLog&					log				= testContext.getLog();
1345	const glw::Functions&			gl				= renderContext.getFunctions();
1346	const tcu::RGBA					threshold		= renderContext.getRenderTarget().getPixelFormat().getColorThreshold() + tcu::RGBA(1,1,1,1);
1347	const tcu::TextureFormat		format			= refTexture.getLevel(0).getFormat();
1348	const tcu::TextureFormatInfo	spec			= tcu::getTextureFormatInfo(format);
1349
1350	ReferenceParams					renderParams	(TEXTURETYPE_2D_ARRAY);
1351
1352	renderParams.samplerType	= getSamplerType(format);
1353	renderParams.sampler		= Sampler(Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::CLAMP_TO_EDGE, Sampler::NEAREST_MIPMAP_NEAREST, Sampler::NEAREST);
1354	renderParams.colorScale		= spec.lookupScale;
1355	renderParams.colorBias		= spec.lookupBias;
1356
1357	gl.activeTexture(GL_TEXTURE0);
1358	gl.bindTexture(GL_TEXTURE_2D_ARRAY, name);
1359	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to bind texture.");
1360
1361	gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
1362	gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
1363	gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
1364	gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1365	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to setup texture filtering state.");
1366
1367	for (int level = 0; level < getLevelCount(info); level++)
1368	{
1369		const IVec3 levelSize = getLevelSize(info.getTarget(), info.getSize(), level);
1370
1371		renderParams.baseLevel	= level;
1372		renderParams.maxLevel	= level;
1373
1374		gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BASE_LEVEL, level);
1375		gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAX_LEVEL, level);
1376
1377		for (int layer = 0; layer < levelSize.z(); layer++)
1378		{
1379			const RandomViewport	viewport		(renderContext.getRenderTarget(), levelSize.x(), levelSize.y(), rng.getUint32());
1380			tcu::Surface			renderedFrame	(viewport.width, viewport.height);
1381			tcu::Surface			referenceFrame	(viewport.width, viewport.height);
1382			vector<float>			texCoord;
1383
1384			computeQuadTexCoord2DArray(texCoord, layer, tcu::Vec2(0.0f, 0.0f), tcu::Vec2(1.0f, 1.0f));
1385
1386			// Setup base viewport.
1387			gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
1388
1389			// Draw.
1390			renderer.renderQuad(0, &texCoord[0], renderParams);
1391			glu::readPixels(renderContext, viewport.x, viewport.y, renderedFrame.getAccess());
1392			GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to render and read pixels.");
1393
1394			// Compute reference.
1395			sampleTexture(tcu::SurfaceAccess(referenceFrame, renderContext.getRenderTarget().getPixelFormat()), refTexture, &texCoord[0], renderParams);
1396
1397			// Compare and log.
1398			if (!pixelThresholdCompare(log, ("Level" + de::toString(level) + "Layer" + de::toString(layer)).c_str(), ("Render level " + de::toString(level) + ", Layer" + de::toString(layer)).c_str(), referenceFrame, renderedFrame, threshold, tcu::COMPARE_LOG_ON_ERROR))
1399				results.fail("Image comparison of level " + de::toString(level) + " and layer " + de::toString(layer) + " failed.");
1400			else
1401				log << TestLog::Message << "Image comparison of level " << level << " and layer " << layer << " passed." << TestLog::EndMessage;
1402		}
1403	}
1404
1405	gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BASE_LEVEL, 0);
1406	gl.texParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAX_LEVEL, 1000);
1407
1408	gl.bindTexture(GL_TEXTURE_2D_ARRAY, 0);
1409	GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to unbind texture.");
1410}
1411
1412void verifyTexture2DArray (tcu::TestContext&					testContext,
1413						   glu::RenderContext&					renderContext,
1414						   TextureRenderer&						textureRenderer,
1415						   tcu::ResultCollector&				results,
1416						   de::Random&							rng,
1417						   deUint32								name,
1418						   const vector<ArrayBuffer<deUint8> >&	data,
1419						   const ImageInfo&						info)
1420{
1421	if (glu::isCompressedFormat(info.getFormat()))
1422	{
1423		vector<de::ArrayBuffer<deUint8> >	levelDatas;
1424		vector<tcu::PixelBufferAccess>		levelAccesses;
1425
1426		decompressTexture(levelDatas, levelAccesses, renderContext, info, data);
1427
1428		{
1429			const tcu::Texture2DArrayView refTexture((int)levelAccesses.size(), &(levelAccesses[0]));
1430
1431			verifyTexture2DArrayView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1432		}
1433	}
1434	else
1435	{
1436		const vector<tcu::ConstPixelBufferAccess>	levelAccesses	= getLevelAccesses(data, info);
1437		const tcu::Texture2DArrayView				refTexture		((int)levelAccesses.size(), &(levelAccesses[0]));
1438
1439		verifyTexture2DArrayView(testContext, renderContext, textureRenderer, results, rng, name, info, refTexture);
1440	}
1441}
1442
1443tcu::TextureFormat getReadPixelFormat (const tcu::TextureFormat& format)
1444{
1445	switch (tcu::getTextureChannelClass(format.type))
1446	{
1447		case tcu::TEXTURECHANNELCLASS_FLOATING_POINT:
1448		case tcu::TEXTURECHANNELCLASS_SIGNED_FIXED_POINT:
1449		case tcu::TEXTURECHANNELCLASS_UNSIGNED_FIXED_POINT:
1450			return tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8);
1451
1452		case tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER:
1453			return tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::SIGNED_INT32);
1454
1455		case tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER:
1456			return tcu::TextureFormat(tcu::TextureFormat::RGBA, tcu::TextureFormat::UNSIGNED_INT32);
1457
1458		default:
1459			DE_ASSERT(false);
1460			return tcu::TextureFormat();
1461	}
1462}
1463
1464Vec4 calculateThreshold (const tcu::TextureFormat& sourceFormat, const tcu::TextureFormat& readPixelsFormat)
1465{
1466	DE_ASSERT(tcu::getTextureChannelClass(sourceFormat.type) != tcu::TEXTURECHANNELCLASS_FLOATING_POINT);
1467	DE_ASSERT(tcu::getTextureChannelClass(readPixelsFormat.type) != tcu::TEXTURECHANNELCLASS_FLOATING_POINT);
1468
1469	DE_ASSERT(tcu::getTextureChannelClass(sourceFormat.type) != tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER);
1470	DE_ASSERT(tcu::getTextureChannelClass(readPixelsFormat.type) != tcu::TEXTURECHANNELCLASS_SIGNED_INTEGER);
1471
1472	DE_ASSERT(tcu::getTextureChannelClass(sourceFormat.type) != tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER);
1473	DE_ASSERT(tcu::getTextureChannelClass(readPixelsFormat.type) != tcu::TEXTURECHANNELCLASS_UNSIGNED_INTEGER);
1474
1475	{
1476		const tcu::IVec4	srcBits		= tcu::getTextureFormatBitDepth(sourceFormat);
1477		const tcu::IVec4	readBits	= tcu::getTextureFormatBitDepth(readPixelsFormat);
1478
1479		return Vec4(1.0f) / ((tcu::IVec4(1) << (tcu::min(srcBits, readBits))) - tcu::IVec4(1)).cast<float>();
1480	}
1481}
1482
1483void verifyRenderbuffer (tcu::TestContext&						testContext,
1484						 glu::RenderContext&					renderContext,
1485						 tcu::ResultCollector&					results,
1486						 deUint32								name,
1487						 const vector<ArrayBuffer<deUint8> >&	data,
1488						 const ImageInfo&						info)
1489{
1490	const glw::Functions&				gl					= renderContext.getFunctions();
1491	TestLog&							log					= testContext.getLog();
1492
1493	const tcu::TextureFormat			format				= glu::mapGLInternalFormat(info.getFormat());
1494	const IVec3							size				= info.getSize();
1495	const tcu::ConstPixelBufferAccess	refRenderbuffer		(format, size.x(), size.y(), 1, data[0].getPtr());
1496	const tcu::TextureFormat			readPixelsFormat	= getReadPixelFormat(format);
1497	tcu::TextureLevel					renderbuffer		(readPixelsFormat, size.x(), size.y());
1498
1499	DE_ASSERT(size.z() == 1);
1500	DE_ASSERT(data.size() == 1);
1501
1502	{
1503		glu::Framebuffer framebuffer(gl);
1504
1505		gl.bindFramebuffer(GL_FRAMEBUFFER, *framebuffer);
1506		GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to create and bind framebuffer.");
1507
1508		gl.bindRenderbuffer(GL_RENDERBUFFER, name);
1509		gl.framebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, name);
1510		GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to bind and attach renderbuffer to framebuffer.");
1511
1512		glu::readPixels(renderContext, 0, 0, renderbuffer.getAccess());
1513
1514		gl.bindRenderbuffer(GL_RENDERBUFFER, 0);
1515		gl.bindFramebuffer(GL_FRAMEBUFFER, 0);
1516		GLU_EXPECT_NO_ERROR(gl.getError(), "Failed to unbind renderbuffer and framebuffer.");
1517	}
1518
1519	if (isFloatFormat(info.getFormat()))
1520	{
1521		const tcu::UVec4 threshold (2, 2, 2, 2);
1522
1523		if (!(tcu::floatUlpThresholdCompare(log, "Image comparison", "Image comparison", refRenderbuffer, renderbuffer.getAccess(), threshold, tcu::COMPARE_LOG_ON_ERROR)))
1524			results.fail("Image comparison failed.");
1525		else
1526			log << TestLog::Message << "Image comarison passed." << TestLog::EndMessage;
1527	}
1528	else if (isIntFormat(info.getFormat()) || isUintFormat(info.getFormat()))
1529	{
1530		const tcu::UVec4 threshold (1, 1, 1, 1);
1531
1532		if (!(tcu::intThresholdCompare(log, "Image comparison", "Image comparison", refRenderbuffer, renderbuffer.getAccess(), threshold, tcu::COMPARE_LOG_ON_ERROR)))
1533			results.fail("Image comparison failed.");
1534		else
1535			log << TestLog::Message << "Image comarison passed." << TestLog::EndMessage;
1536	}
1537	else
1538	{
1539		const Vec4 threshold = calculateThreshold(format, readPixelsFormat);
1540
1541		if (!(tcu::floatThresholdCompare(log, "Image comparison", "Image comparison", refRenderbuffer, renderbuffer.getAccess(), threshold, tcu::COMPARE_LOG_ON_ERROR)))
1542			results.fail("Image comparison failed.");
1543		else
1544			log << TestLog::Message << "Image comarison passed." << TestLog::EndMessage;
1545	}
1546}
1547
1548void verify (tcu::TestContext&						testContext,
1549			 glu::RenderContext&					renderContext,
1550			 TextureRenderer&						textureRenderer,
1551			 tcu::ResultCollector&					results,
1552			 de::Random&							rng,
1553			 deUint32								name,
1554			 const vector<ArrayBuffer<deUint8> >&	data,
1555			 const ImageInfo&						info)
1556{
1557	switch (info.getTarget())
1558	{
1559		case GL_TEXTURE_2D:
1560			verifyTexture2D(testContext, renderContext, textureRenderer, results, rng, name, data, info);
1561			break;
1562
1563		case GL_TEXTURE_3D:
1564			verifyTexture3D(testContext, renderContext, textureRenderer, results, rng, name, data, info);
1565			break;
1566
1567		case GL_TEXTURE_CUBE_MAP:
1568			verifyTextureCubemap(testContext, renderContext, textureRenderer, results, rng, name, data, info);
1569			break;
1570
1571		case GL_TEXTURE_2D_ARRAY:
1572			verifyTexture2DArray(testContext, renderContext, textureRenderer, results, rng, name, data, info);
1573			break;
1574
1575		case GL_RENDERBUFFER:
1576			verifyRenderbuffer(testContext, renderContext, results, name, data, info);
1577			break;
1578
1579		default:
1580			DE_ASSERT(false);
1581	}
1582}
1583
1584void logTestImageInfo (TestLog&			log,
1585					   const ImageInfo&	imageInfo)
1586{
1587	log << TestLog::Message << "Target: " << targetToName(imageInfo.getTarget()) << TestLog::EndMessage;
1588	log << TestLog::Message << "Size: " << imageInfo.getSize() << TestLog::EndMessage;
1589	log << TestLog::Message << "Levels: " << getLevelCount(imageInfo) << TestLog::EndMessage;
1590	log << TestLog::Message << "Format: " << formatToName(imageInfo.getFormat()) << TestLog::EndMessage;
1591}
1592
1593void logTestInfo (TestLog&			log,
1594				  const ImageInfo&	srcImageInfo,
1595				  const ImageInfo&	dstImageInfo)
1596{
1597	tcu::ScopedLogSection section(log, "TestCaseInfo", "Test case info");
1598
1599	log << TestLog::Message << "Testing copying from " << targetToName(srcImageInfo.getTarget()) << " to " << targetToName(dstImageInfo.getTarget()) << "." << TestLog::EndMessage;
1600
1601	{
1602		tcu::ScopedLogSection srcSection(log, "Source image info.", "Source image info.");
1603		logTestImageInfo(log, srcImageInfo);
1604	}
1605
1606	{
1607		tcu::ScopedLogSection dstSection(log, "Destination image info.", "Destination image info.");
1608		logTestImageInfo(log, dstImageInfo);
1609	}
1610}
1611
1612class CopyImageTest : public TestCase
1613{
1614public:
1615							CopyImageTest			(Context&			context,
1616													 const ImageInfo&	srcImage,
1617													 const ImageInfo&	dstImage,
1618													 const char*		name,
1619													 const char*		description);
1620
1621							~CopyImageTest			(void);
1622
1623	void					init					(void);
1624	void					deinit					(void);
1625
1626	TestCase::IterateResult	iterate					(void);
1627
1628private:
1629	void					logTestInfoIter			(void);
1630	void					createImagesIter		(void);
1631	void					destroyImagesIter		(void);
1632	void					verifySourceIter		(void);
1633	void					verifyDestinationIter	(void);
1634	void					copyImageIter			(void);
1635
1636	struct State
1637	{
1638		State (int					seed,
1639			   tcu::TestLog&		log,
1640			   glu::RenderContext&	renderContext)
1641			: rng				(seed)
1642			, results			(log)
1643			, srcImage			(NULL)
1644			, dstImage			(NULL)
1645			, textureRenderer	(renderContext, log, glu::GLSL_VERSION_310_ES, glu::PRECISION_HIGHP)
1646		{
1647		}
1648
1649		~State (void)
1650		{
1651			delete srcImage;
1652			delete dstImage;
1653		}
1654
1655		de::Random						rng;
1656		tcu::ResultCollector			results;
1657		glu::ObjectWrapper*				srcImage;
1658		glu::ObjectWrapper*				dstImage;
1659		TextureRenderer					textureRenderer;
1660
1661		vector<ArrayBuffer<deUint8> >	srcImageLevels;
1662		vector<ArrayBuffer<deUint8> >	dstImageLevels;
1663	};
1664
1665	const ImageInfo	m_srcImageInfo;
1666	const ImageInfo	m_dstImageInfo;
1667
1668	int				m_iteration;
1669	State*			m_state;
1670};
1671
1672CopyImageTest::CopyImageTest (Context&			context,
1673							  const ImageInfo&	srcImage,
1674							  const ImageInfo&	dstImage,
1675							  const char*		name,
1676							  const char*		description)
1677	: TestCase			(context, name, description)
1678	, m_srcImageInfo	(srcImage)
1679	, m_dstImageInfo	(dstImage)
1680
1681	, m_iteration		(0)
1682	, m_state			(NULL)
1683{
1684}
1685
1686CopyImageTest::~CopyImageTest (void)
1687{
1688	deinit();
1689}
1690
1691void checkFormatSupport (glu::ContextInfo& info, deUint32 format, deUint32 target, glu::RenderContext& ctx)
1692{
1693	const bool isES32 = glu::contextSupports(ctx.getType(), glu::ApiType::es(3, 2));
1694
1695	if (glu::isCompressedFormat(format))
1696	{
1697		if (isAstcFormat(glu::mapGLCompressedTexFormat(format)))
1698		{
1699			DE_ASSERT(target != GL_RENDERBUFFER);
1700			if (!info.isExtensionSupported("GL_KHR_texture_compression_astc_hdr") &&
1701				!info.isExtensionSupported("GL_OES_texture_compression_astc"))
1702			{
1703				if (target == GL_TEXTURE_3D)
1704					TCU_THROW(NotSupportedError, "TEXTURE_3D target requires HDR astc support.");
1705				if (!isES32 && !info.isExtensionSupported("GL_KHR_texture_compression_astc_ldr"))
1706					TCU_THROW(NotSupportedError, "Compressed astc texture not supported.");
1707			}
1708		}
1709		else
1710		{
1711			if (!info.isCompressedTextureFormatSupported(format))
1712				TCU_THROW(NotSupportedError, "Compressed texture not supported.");
1713		}
1714	}
1715}
1716
1717void CopyImageTest::init (void)
1718{
1719	de::UniquePtr<glu::ContextInfo> ctxInfo(glu::ContextInfo::create(m_context.getRenderContext()));
1720	const bool						isES32 = glu::contextSupports(m_context.getRenderContext().getType(), glu::ApiType::es(3, 2));
1721
1722	if (!isES32 && !ctxInfo->isExtensionSupported("GL_EXT_copy_image"))
1723		throw tcu::NotSupportedError("Extension GL_EXT_copy_image not supported.", "", __FILE__, __LINE__);
1724
1725	checkFormatSupport(*ctxInfo, m_srcImageInfo.getFormat(), m_srcImageInfo.getTarget(), m_context.getRenderContext());
1726	checkFormatSupport(*ctxInfo, m_dstImageInfo.getFormat(), m_dstImageInfo.getTarget(), m_context.getRenderContext());
1727
1728	{
1729		SeedBuilder builder;
1730
1731		builder << 903980
1732				<< m_srcImageInfo
1733				<< m_dstImageInfo;
1734
1735		m_state = new State(builder.get(), m_testCtx.getLog(), m_context.getRenderContext());
1736	}
1737}
1738
1739void CopyImageTest::deinit (void)
1740{
1741	delete m_state;
1742	m_state = NULL;
1743}
1744
1745void CopyImageTest::logTestInfoIter (void)
1746{
1747	TestLog& log = m_testCtx.getLog();
1748
1749	logTestInfo(log, m_srcImageInfo, m_dstImageInfo);
1750}
1751
1752void CopyImageTest::createImagesIter (void)
1753{
1754	TestLog&				log						= m_testCtx.getLog();
1755	glu::RenderContext&		renderContext			= m_context.getRenderContext();
1756	const glw::Functions&	gl						= renderContext.getFunctions();
1757	const deUint32			moreRestrictiveFormat	= getMoreRestrictiveFormat(m_srcImageInfo.getFormat(), m_dstImageInfo.getFormat());
1758	de::Random&				rng						= m_state->rng;
1759
1760	DE_ASSERT(!m_state->srcImage);
1761	DE_ASSERT(!m_state->dstImage);
1762
1763	m_state->srcImage = new glu::ObjectWrapper(gl, getObjectTraits(m_srcImageInfo));
1764	m_state->dstImage = new glu::ObjectWrapper(gl, getObjectTraits(m_dstImageInfo));
1765
1766	{
1767		glu::ObjectWrapper&				srcImage				= *m_state->srcImage;
1768		glu::ObjectWrapper&				dstImage				= *m_state->dstImage;
1769
1770		vector<ArrayBuffer<deUint8> >&	srcImageLevels			= m_state->srcImageLevels;
1771		vector<ArrayBuffer<deUint8> >&	dstImageLevels			= m_state->dstImageLevels;
1772
1773		log << TestLog::Message << "Creating source image." << TestLog::EndMessage;
1774		genImage(gl, rng, *srcImage, srcImageLevels, m_srcImageInfo, moreRestrictiveFormat);
1775
1776		log << TestLog::Message << "Creating destination image." << TestLog::EndMessage;
1777		genImage(gl, rng, *dstImage, dstImageLevels, m_dstImageInfo, moreRestrictiveFormat);
1778	}
1779}
1780
1781void CopyImageTest::destroyImagesIter (void)
1782{
1783	TestLog& log = m_testCtx.getLog();
1784
1785	log << TestLog::Message << "Deleting source image. " << TestLog::EndMessage;
1786
1787	delete m_state->srcImage;
1788	m_state->srcImage = NULL;
1789	m_state->srcImageLevels.clear();
1790
1791	log << TestLog::Message << "Deleting destination image. " << TestLog::EndMessage;
1792
1793	delete m_state->dstImage;
1794	m_state->dstImage = NULL;
1795	m_state->dstImageLevels.clear();
1796}
1797
1798void CopyImageTest::verifySourceIter (void)
1799{
1800	TestLog&						log					= m_testCtx.getLog();
1801	const tcu::ScopedLogSection		sourceSection		(log, "Source image verify.", "Source image verify.");
1802
1803	de::Random&						rng					= m_state->rng;
1804	tcu::ResultCollector&			results				= m_state->results;
1805	glu::ObjectWrapper&				srcImage			= *m_state->srcImage;
1806	vector<ArrayBuffer<deUint8> >&	srcImageLevels		= m_state->srcImageLevels;
1807
1808	log << TestLog::Message << "Verifying source image." << TestLog::EndMessage;
1809
1810	verify(m_testCtx, m_context.getRenderContext(), m_state->textureRenderer, results, rng, *srcImage, srcImageLevels, m_srcImageInfo);
1811}
1812
1813void CopyImageTest::verifyDestinationIter (void)
1814{
1815	TestLog&						log					= m_testCtx.getLog();
1816	const tcu::ScopedLogSection		destinationSection	(log, "Destination image verify.", "Destination image verify.");
1817
1818	de::Random&						rng					= m_state->rng;
1819	tcu::ResultCollector&			results				= m_state->results;
1820	glu::ObjectWrapper&				dstImage			= *m_state->dstImage;
1821	vector<ArrayBuffer<deUint8> >&	dstImageLevels		= m_state->dstImageLevels;
1822
1823	log << TestLog::Message << "Verifying destination image." << TestLog::EndMessage;
1824
1825	verify(m_testCtx, m_context.getRenderContext(), m_state->textureRenderer, results, rng, *dstImage, dstImageLevels, m_dstImageInfo);
1826}
1827
1828struct Copy
1829{
1830	Copy (const IVec3&	srcPos_,
1831		  int			srcLevel_,
1832
1833		  const IVec3&	dstPos_,
1834		  int			dstLevel_,
1835
1836		  const IVec3&	size_,
1837		  const IVec3&	dstSize_)
1838		: srcPos	(srcPos_)
1839		, srcLevel	(srcLevel_)
1840
1841		, dstPos	(dstPos_)
1842		, dstLevel	(dstLevel_)
1843
1844		, size		(size_)
1845		, dstSize	(dstSize_)
1846	{
1847	}
1848
1849	IVec3	srcPos;
1850	int		srcLevel;
1851	IVec3	dstPos;
1852	int		dstLevel;
1853	IVec3	size;
1854	IVec3	dstSize;	//!< used only for logging
1855};
1856
1857int getLastFullLevel (const ImageInfo& info)
1858{
1859	const int	levelCount		= getLevelCount(info);
1860	const IVec3	blockPixelSize	= getTexelBlockPixelSize(info.getFormat());
1861
1862	for (int level = 0; level < levelCount; level++)
1863	{
1864		const IVec3 levelSize = getLevelSize(info.getTarget(), info.getSize(), level);
1865
1866		if (levelSize.x() < blockPixelSize.x() || levelSize.y() < blockPixelSize.y() || levelSize.z() < blockPixelSize.z())
1867			return level - 1;
1868	}
1869
1870	return levelCount -1;
1871}
1872
1873void generateCopies (vector<Copy>& copies, const ImageInfo& srcInfo, const ImageInfo& dstInfo)
1874{
1875	const deUint32	srcTarget		= srcInfo.getTarget();
1876	const deUint32	dstTarget		= dstInfo.getTarget();
1877
1878	const bool		srcIsTexture	= isTextureTarget(srcInfo.getTarget());
1879	const bool		dstIsTexture	= isTextureTarget(dstInfo.getTarget());
1880
1881	const bool		srcIsCube		= srcTarget == GL_TEXTURE_CUBE_MAP;
1882	const bool		dstIsCube		= dstTarget == GL_TEXTURE_CUBE_MAP;
1883
1884	const IVec3		srcBlockPixelSize		= getTexelBlockPixelSize(srcInfo.getFormat());
1885	const IVec3		dstBlockPixelSize		= getTexelBlockPixelSize(dstInfo.getFormat());
1886
1887	const int levels[] =
1888	{
1889		0, 1, -1
1890	};
1891
1892	for (int levelNdx = 0; levelNdx < (srcIsTexture || dstIsTexture ? DE_LENGTH_OF_ARRAY(levels) : 1); levelNdx++)
1893	{
1894		const int	srcLevel				= (srcIsTexture ? (levels[levelNdx] >= 0 ? levels[levelNdx] : getLastFullLevel(srcInfo)) : 0);
1895		const int	dstLevel				= (dstIsTexture ? (levels[levelNdx] >= 0 ? levels[levelNdx] : getLastFullLevel(dstInfo)) : 0);
1896
1897		const IVec3	srcSize					= getLevelSize(srcInfo.getTarget(), srcInfo.getSize(), srcLevel);
1898		const IVec3	dstSize					= getLevelSize(dstInfo.getTarget(), dstInfo.getSize(), dstLevel);
1899
1900		// \note These are rounded down
1901		const IVec3	srcCompleteBlockSize	= IVec3(srcSize.x() / srcBlockPixelSize.x(), srcSize.y() / srcBlockPixelSize.y(), (srcIsCube ? 6 : srcSize.z() / srcBlockPixelSize.z()));
1902		const IVec3	dstCompleteBlockSize	= IVec3(dstSize.x() / dstBlockPixelSize.x(), dstSize.y() / dstBlockPixelSize.y(), (dstIsCube ? 6 : dstSize.z() / dstBlockPixelSize.z()));
1903
1904		const IVec3	maxCopyBlockSize		= tcu::min(srcCompleteBlockSize, dstCompleteBlockSize);
1905
1906		// \note These are rounded down
1907		const int	copyBlockWidth			= de::max((2 * (maxCopyBlockSize.x() / 4)) - 1, 1);
1908		const int	copyBlockHeight			= de::max((2 * (maxCopyBlockSize.y() / 4)) - 1, 1);
1909		const int	copyBlockDepth			= de::max((2 * (maxCopyBlockSize.z() / 4)) - 1, 1);
1910
1911		// Copy NPOT block to (0,0,0) from other corner on src
1912		{
1913			const IVec3	copyBlockSize	(copyBlockWidth, copyBlockHeight, copyBlockDepth);
1914			const IVec3	srcBlockPos		(srcCompleteBlockSize - copyBlockSize);
1915			const IVec3	dstBlockPos		(0, 0, 0);
1916
1917			const IVec3	srcPos			(srcBlockPos * srcBlockPixelSize);
1918			const IVec3	dstPos			(dstBlockPos * dstBlockPixelSize);
1919			const IVec3 srcCopySize		(copyBlockSize * srcBlockPixelSize);
1920			const IVec3 dstCopySize		(copyBlockSize * dstBlockPixelSize);
1921
1922			copies.push_back(Copy(srcPos, srcLevel, dstPos, dstLevel, srcCopySize, dstCopySize));
1923		}
1924
1925		// Copy NPOT block from (0,0,0) to other corner on dst
1926		{
1927			const IVec3	copyBlockSize	(copyBlockWidth, copyBlockHeight, copyBlockDepth);
1928			const IVec3	srcBlockPos		(0, 0, 0);
1929			const IVec3	dstBlockPos		(dstCompleteBlockSize - copyBlockSize);
1930
1931			const IVec3	srcPos			(srcBlockPos * srcBlockPixelSize);
1932			const IVec3	dstPos			(dstBlockPos * dstBlockPixelSize);
1933			const IVec3 srcCopySize		(copyBlockSize * srcBlockPixelSize);
1934			const IVec3 dstCopySize		(copyBlockSize * dstBlockPixelSize);
1935
1936			copies.push_back(Copy(srcPos, srcLevel, dstPos, dstLevel, srcCopySize, dstCopySize));
1937		}
1938
1939		// Copy NPOT block near the corner with high coordinates
1940		{
1941			const IVec3	copyBlockSize	(copyBlockWidth, copyBlockHeight, copyBlockDepth);
1942			const IVec3	srcBlockPos		(tcu::max((srcCompleteBlockSize / 4) * 4 - copyBlockSize, IVec3(0)));
1943			const IVec3	dstBlockPos		(tcu::max((dstCompleteBlockSize / 4) * 4 - copyBlockSize, IVec3(0)));
1944
1945			const IVec3	srcPos			(srcBlockPos * srcBlockPixelSize);
1946			const IVec3	dstPos			(dstBlockPos * dstBlockPixelSize);
1947			const IVec3 srcCopySize		(copyBlockSize * srcBlockPixelSize);
1948			const IVec3 dstCopySize		(copyBlockSize * dstBlockPixelSize);
1949
1950			copies.push_back(Copy(srcPos, srcLevel, dstPos, dstLevel, srcCopySize, dstCopySize));
1951		}
1952	}
1953}
1954
1955void CopyImageTest::copyImageIter (void)
1956{
1957	TestLog&						log				= m_testCtx.getLog();
1958	const glw::Functions&			gl				= m_context.getRenderContext().getFunctions();
1959	glu::ObjectWrapper&				srcImage		= *m_state->srcImage;
1960	glu::ObjectWrapper&				dstImage		= *m_state->dstImage;
1961
1962	vector<ArrayBuffer<deUint8> >&	srcImageLevels	= m_state->srcImageLevels;
1963	vector<ArrayBuffer<deUint8> >&	dstImageLevels	= m_state->dstImageLevels;
1964	vector<Copy>					copies;
1965
1966	generateCopies(copies, m_srcImageInfo, m_dstImageInfo);
1967
1968	for (int copyNdx = 0; copyNdx < (int)copies.size(); copyNdx++)
1969	{
1970		const Copy& copy = copies[copyNdx];
1971
1972		log	<< TestLog::Message
1973			<< "Copying area with size " << copy.size
1974			<< " from source image position " << copy.srcPos << " and mipmap level " << copy.srcLevel
1975			<< " to destination image position " << copy.dstPos << " and mipmap level " << copy.dstLevel << ". "
1976			<< "Size in destination format is " << copy.dstSize
1977			<< TestLog::EndMessage;
1978
1979		copyImage(gl, *dstImage, dstImageLevels, m_dstImageInfo, copy.dstLevel, copy.dstPos,
1980					  *srcImage, srcImageLevels, m_srcImageInfo, copy.srcLevel, copy.srcPos, copy.size);
1981	}
1982}
1983
1984TestCase::IterateResult CopyImageTest::iterate (void)
1985{
1986	void(CopyImageTest::*methods[])(void) =
1987	{
1988		&CopyImageTest::logTestInfoIter,
1989
1990		// Render both images and then copy and verify again.
1991		&CopyImageTest::createImagesIter,
1992		&CopyImageTest::verifySourceIter,
1993		&CopyImageTest::verifyDestinationIter,
1994		&CopyImageTest::copyImageIter,
1995		&CopyImageTest::verifySourceIter,
1996		&CopyImageTest::verifyDestinationIter,
1997		&CopyImageTest::destroyImagesIter,
1998
1999		// Create images and immediately copies between thew and verify.
2000		&CopyImageTest::createImagesIter,
2001		&CopyImageTest::copyImageIter,
2002		&CopyImageTest::verifySourceIter,
2003		&CopyImageTest::verifyDestinationIter,
2004		&CopyImageTest::destroyImagesIter
2005	};
2006
2007	if (m_iteration < DE_LENGTH_OF_ARRAY(methods))
2008	{
2009		(this->*methods[m_iteration])();
2010		m_iteration++;
2011		return CONTINUE;
2012	}
2013	else
2014	{
2015		m_state->results.setTestContextResult(m_testCtx);
2016		return STOP;
2017	}
2018}
2019
2020class CopyImageTests : public TestCaseGroup
2021{
2022public:
2023						CopyImageTests			(Context& context);
2024						~CopyImageTests			(void);
2025
2026	void				init					(void);
2027
2028private:
2029						CopyImageTests			(const CopyImageTests& other);
2030	CopyImageTests&		operator=				(const CopyImageTests& other);
2031};
2032
2033CopyImageTests::CopyImageTests (Context& context)
2034	: TestCaseGroup	(context, "copy_image", "Copy image tests for GL_EXT_copy_image.")
2035{
2036}
2037
2038CopyImageTests::~CopyImageTests (void)
2039{
2040}
2041
2042int smallestCommonMultiple (int a_, int b_)
2043{
2044	int	a		= (a_ > b_ ? a_ : b_);
2045	int	b		= (a_ > b_ ? b_ : a_);
2046	int	result  = 1;
2047
2048	for (int i = b/2; i > 1; i--)
2049	{
2050		while ((a % i) == 0 && (b % i) == 0)
2051		{
2052			result *= i;
2053			a /= i;
2054			b /= i;
2055		}
2056	}
2057
2058	return result * a * b;
2059}
2060
2061IVec3 getTestedSize (deUint32 target, deUint32 format, const IVec3& targetSize)
2062{
2063	const IVec3 texelBlockPixelSize = getTexelBlockPixelSize(format);
2064	const bool	isCube				= target == GL_TEXTURE_CUBE_MAP;
2065	const bool	is3D				= target == GL_TEXTURE_3D || target == GL_TEXTURE_2D_ARRAY;
2066
2067	if (isCube)
2068	{
2069		const int	multiplier	= smallestCommonMultiple(texelBlockPixelSize.x(), texelBlockPixelSize.y());
2070		const int	size		= (1 + (targetSize.x() / multiplier)) * multiplier;
2071
2072		return IVec3(size, size, 1);
2073	}
2074	else if (is3D)
2075	{
2076		return (1 + (targetSize / texelBlockPixelSize)) * texelBlockPixelSize;
2077	}
2078	else
2079	{
2080		const int width = (1 + targetSize.x() / texelBlockPixelSize.x()) * texelBlockPixelSize.x();
2081		const int height = ((targetSize.y() / texelBlockPixelSize.y()) - 1) * texelBlockPixelSize.y();
2082
2083		return IVec3(width, height, 1);
2084	}
2085}
2086
2087void addCopyTests (TestCaseGroup* root, deUint32 srcFormat, deUint32 dstFormat)
2088{
2089	const string			groupName	= string(formatToName(srcFormat)) + "_" + formatToName(dstFormat);
2090	TestCaseGroup* const	group		= new TestCaseGroup(root->getContext(), groupName.c_str(), groupName.c_str());
2091
2092	const deUint32 targets[] =
2093	{
2094		GL_TEXTURE_2D,
2095		GL_TEXTURE_3D,
2096		GL_TEXTURE_CUBE_MAP,
2097		GL_TEXTURE_2D_ARRAY,
2098		GL_RENDERBUFFER
2099	};
2100
2101	root->addChild(group);
2102
2103	for (int srcTargetNdx = 0; srcTargetNdx < DE_LENGTH_OF_ARRAY(targets); srcTargetNdx++)
2104	{
2105		const deUint32	srcTarget				= targets[srcTargetNdx];
2106		const bool		srcIs3D					= srcTarget == GL_TEXTURE_2D_ARRAY || srcTarget == GL_TEXTURE_3D;
2107
2108		if (glu::isCompressedFormat(srcFormat) && srcTarget == GL_RENDERBUFFER)
2109			continue;
2110
2111		if (srcTarget == GL_RENDERBUFFER && !isColorRenderable(srcFormat))
2112			continue;
2113
2114		if (glu::isCompressedFormat(srcFormat) && !tcu::isAstcFormat(glu::mapGLCompressedTexFormat(srcFormat)) && srcIs3D)
2115			continue;
2116
2117		for (int dstTargetNdx = 0; dstTargetNdx < DE_LENGTH_OF_ARRAY(targets); dstTargetNdx++)
2118		{
2119			const deUint32	dstTarget				= targets[dstTargetNdx];
2120			const bool		dstIs3D					= dstTarget == GL_TEXTURE_2D_ARRAY || dstTarget == GL_TEXTURE_3D;
2121
2122			if (glu::isCompressedFormat(dstFormat) && dstTarget == GL_RENDERBUFFER)
2123				continue;
2124
2125			if (dstTarget == GL_RENDERBUFFER && !isColorRenderable(dstFormat))
2126				continue;
2127
2128			if (glu::isCompressedFormat(dstFormat) && !tcu::isAstcFormat(glu::mapGLCompressedTexFormat(dstFormat)) && dstIs3D)
2129				continue;
2130
2131			const string	targetTestName	= string(targetToName(srcTarget)) + "_to_" + targetToName(dstTarget);
2132
2133			// Compressed formats require more space to fit all block size combinations.
2134			const bool		isCompressedCase	= glu::isCompressedFormat(srcFormat) || glu::isCompressedFormat(dstFormat);
2135			const IVec3		targetSize			= isCompressedCase ? IVec3(128, 128, 16) : IVec3(64, 64, 8);
2136			const IVec3		srcSize				= getTestedSize(srcTarget, srcFormat, targetSize);
2137			const IVec3		dstSize				= getTestedSize(dstTarget, dstFormat, targetSize);
2138
2139			group->addChild(new CopyImageTest(root->getContext(),
2140											ImageInfo(srcFormat, srcTarget, srcSize),
2141											ImageInfo(dstFormat, dstTarget, dstSize),
2142											targetTestName.c_str(), targetTestName.c_str()));
2143		}
2144	}
2145}
2146
2147void CopyImageTests::init (void)
2148{
2149	TestCaseGroup* const	nonCompressedGroup	= new TestCaseGroup(m_context, "non_compressed", "Test copying between textures.");
2150	TestCaseGroup* const	compressedGroup		= new TestCaseGroup(m_context, "compressed", "Test copying between compressed textures.");
2151	TestCaseGroup* const	mixedGroup			= new TestCaseGroup(m_context, "mixed", "Test copying between compressed and non-compressed textures.");
2152
2153	addChild(nonCompressedGroup);
2154	addChild(compressedGroup);
2155	addChild(mixedGroup);
2156
2157	map<ViewClass, vector<deUint32> >							textureFormatViewClasses;
2158	map<ViewClass, vector<deUint32> >							compressedTextureFormatViewClasses;
2159	map<ViewClass, pair<vector<deUint32>, vector<deUint32> > >	mixedViewClasses;
2160
2161	// Texture view classes
2162	textureFormatViewClasses[VIEWCLASS_128_BITS]		= vector<deUint32>();
2163	textureFormatViewClasses[VIEWCLASS_96_BITS]			= vector<deUint32>();
2164	textureFormatViewClasses[VIEWCLASS_64_BITS]			= vector<deUint32>();
2165	textureFormatViewClasses[VIEWCLASS_48_BITS]			= vector<deUint32>();
2166	textureFormatViewClasses[VIEWCLASS_32_BITS]			= vector<deUint32>();
2167	textureFormatViewClasses[VIEWCLASS_24_BITS]			= vector<deUint32>();
2168	textureFormatViewClasses[VIEWCLASS_16_BITS]			= vector<deUint32>();
2169	textureFormatViewClasses[VIEWCLASS_8_BITS]			= vector<deUint32>();
2170
2171	// 128bit / VIEWCLASS_128_BITS
2172	textureFormatViewClasses[VIEWCLASS_128_BITS].push_back(GL_RGBA32F);
2173	textureFormatViewClasses[VIEWCLASS_128_BITS].push_back(GL_RGBA32I);
2174	textureFormatViewClasses[VIEWCLASS_128_BITS].push_back(GL_RGBA32UI);
2175
2176	// 96bit / VIEWCLASS_96_BITS
2177	textureFormatViewClasses[VIEWCLASS_96_BITS].push_back(GL_RGB32F);
2178	textureFormatViewClasses[VIEWCLASS_96_BITS].push_back(GL_RGB32I);
2179	textureFormatViewClasses[VIEWCLASS_96_BITS].push_back(GL_RGB32UI);
2180
2181	// 64bit / VIEWCLASS_64_BITS
2182	textureFormatViewClasses[VIEWCLASS_64_BITS].push_back(GL_RG32F);
2183	textureFormatViewClasses[VIEWCLASS_64_BITS].push_back(GL_RG32I);
2184	textureFormatViewClasses[VIEWCLASS_64_BITS].push_back(GL_RG32UI);
2185
2186	textureFormatViewClasses[VIEWCLASS_64_BITS].push_back(GL_RGBA16F);
2187	textureFormatViewClasses[VIEWCLASS_64_BITS].push_back(GL_RGBA16I);
2188	textureFormatViewClasses[VIEWCLASS_64_BITS].push_back(GL_RGBA16UI);
2189
2190	// 48bit / VIEWCLASS_48_BITS
2191	textureFormatViewClasses[VIEWCLASS_48_BITS].push_back(GL_RGB16F);
2192	textureFormatViewClasses[VIEWCLASS_48_BITS].push_back(GL_RGB16I);
2193	textureFormatViewClasses[VIEWCLASS_48_BITS].push_back(GL_RGB16UI);
2194
2195	// 32bit / VIEWCLASS_32_BITS
2196	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_R32F);
2197	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_R32I);
2198	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_R32UI);
2199
2200	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RG16F);
2201	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RG16I);
2202	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RG16UI);
2203
2204	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGBA8);
2205	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGBA8I);
2206	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGBA8UI);
2207
2208	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_R11F_G11F_B10F);
2209	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGB10_A2UI);
2210	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGB10_A2);
2211	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGBA8_SNORM);
2212	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_SRGB8_ALPHA8);
2213	textureFormatViewClasses[VIEWCLASS_32_BITS].push_back(GL_RGB9_E5);
2214
2215	// 24bit / VIEWCLASS_24_BITS
2216	textureFormatViewClasses[VIEWCLASS_24_BITS].push_back(GL_RGB8);
2217	textureFormatViewClasses[VIEWCLASS_24_BITS].push_back(GL_RGB8I);
2218	textureFormatViewClasses[VIEWCLASS_24_BITS].push_back(GL_RGB8UI);
2219	textureFormatViewClasses[VIEWCLASS_24_BITS].push_back(GL_RGB8_SNORM);
2220	textureFormatViewClasses[VIEWCLASS_24_BITS].push_back(GL_SRGB8);
2221
2222	// 16bit / VIEWCLASS_16_BITS
2223	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_R16F);
2224	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_R16I);
2225	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_R16UI);
2226
2227	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_RG8);
2228	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_RG8I);
2229	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_RG8UI);
2230	textureFormatViewClasses[VIEWCLASS_16_BITS].push_back(GL_RG8_SNORM);
2231
2232	// 8bit / VIEWCLASS_8_BITS
2233	textureFormatViewClasses[VIEWCLASS_8_BITS].push_back(GL_R8);
2234	textureFormatViewClasses[VIEWCLASS_8_BITS].push_back(GL_R8I);
2235	textureFormatViewClasses[VIEWCLASS_8_BITS].push_back(GL_R8UI);
2236	textureFormatViewClasses[VIEWCLASS_8_BITS].push_back(GL_R8_SNORM);
2237
2238	// Compressed texture view classes
2239	compressedTextureFormatViewClasses[VIEWCLASS_EAC_R11]			= vector<deUint32>();
2240	compressedTextureFormatViewClasses[VIEWCLASS_EAC_RG11]			= vector<deUint32>();
2241	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_RGB]			= vector<deUint32>();
2242	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_RGBA]			= vector<deUint32>();
2243	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_EAC_RGBA]		= vector<deUint32>();
2244	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_4x4_RGBA]		= vector<deUint32>();
2245	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_5x4_RGBA]		= vector<deUint32>();
2246	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_5x5_RGBA]		= vector<deUint32>();
2247	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_6x5_RGBA]		= vector<deUint32>();
2248	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_6x6_RGBA]		= vector<deUint32>();
2249	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x5_RGBA]		= vector<deUint32>();
2250	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x6_RGBA]		= vector<deUint32>();
2251	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x8_RGBA]		= vector<deUint32>();
2252	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x5_RGBA]	= vector<deUint32>();
2253	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x6_RGBA]	= vector<deUint32>();
2254	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x8_RGBA]	= vector<deUint32>();
2255	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x10_RGBA]	= vector<deUint32>();
2256	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_12x10_RGBA]	= vector<deUint32>();
2257	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_12x12_RGBA]	= vector<deUint32>();
2258
2259	// VIEWCLASS_EAC_R11
2260	compressedTextureFormatViewClasses[VIEWCLASS_EAC_R11].push_back(GL_COMPRESSED_R11_EAC);
2261	compressedTextureFormatViewClasses[VIEWCLASS_EAC_R11].push_back(GL_COMPRESSED_SIGNED_R11_EAC);
2262
2263	// VIEWCLASS_EAC_RG11
2264	compressedTextureFormatViewClasses[VIEWCLASS_EAC_RG11].push_back(GL_COMPRESSED_RG11_EAC);
2265	compressedTextureFormatViewClasses[VIEWCLASS_EAC_RG11].push_back(GL_COMPRESSED_SIGNED_RG11_EAC);
2266
2267	// VIEWCLASS_ETC2_RGB
2268	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_RGB].push_back(GL_COMPRESSED_RGB8_ETC2);
2269	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_RGB].push_back(GL_COMPRESSED_SRGB8_ETC2);
2270
2271	// VIEWCLASS_ETC2_RGBA
2272	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_RGBA].push_back(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2);
2273	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_RGBA].push_back(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2);
2274
2275	// VIEWCLASS_ETC2_EAC_RGBA
2276	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_EAC_RGBA].push_back(GL_COMPRESSED_RGBA8_ETC2_EAC);
2277	compressedTextureFormatViewClasses[VIEWCLASS_ETC2_EAC_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC);
2278
2279	// VIEWCLASS_ASTC_4x4_RGBA
2280	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_4x4_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_4x4);
2281	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_4x4_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4);
2282
2283	// VIEWCLASS_ASTC_5x4_RGBA
2284	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_5x4_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_5x4);
2285	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_5x4_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4);
2286
2287	// VIEWCLASS_ASTC_5x5_RGBA
2288	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_5x5_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_5x5);
2289	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_5x5_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5);
2290
2291	// VIEWCLASS_ASTC_6x5_RGBA
2292	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_6x5_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_6x5);
2293	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_6x5_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5);
2294
2295	// VIEWCLASS_ASTC_6x6_RGBA
2296	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_6x6_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_6x6);
2297	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_6x6_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6);
2298
2299	// VIEWCLASS_ASTC_8x5_RGBA
2300	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x5_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_8x5);
2301	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x5_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5);
2302
2303	// VIEWCLASS_ASTC_8x6_RGBA
2304	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x6_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_8x6);
2305	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x6_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6);
2306
2307	// VIEWCLASS_ASTC_8x8_RGBA
2308	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x8_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_8x8);
2309	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_8x8_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8);
2310
2311	// VIEWCLASS_ASTC_10x5_RGBA
2312	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x5_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_10x5);
2313	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x5_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5);
2314
2315	// VIEWCLASS_ASTC_10x6_RGBA
2316	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x6_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_10x6);
2317	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x6_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6);
2318
2319	// VIEWCLASS_ASTC_10x8_RGBA
2320	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x8_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_10x8);
2321	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x8_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8);
2322
2323	// VIEWCLASS_ASTC_10x10_RGBA
2324	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x10_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_10x10);
2325	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_10x10_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10);
2326
2327	// VIEWCLASS_ASTC_12x10_RGBA
2328	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_12x10_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_12x10);
2329	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_12x10_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10);
2330
2331	// VIEWCLASS_ASTC_12x12_RGBA
2332	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_12x12_RGBA].push_back(GL_COMPRESSED_RGBA_ASTC_12x12);
2333	compressedTextureFormatViewClasses[VIEWCLASS_ASTC_12x12_RGBA].push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12);
2334
2335	// Mixed view classes
2336	mixedViewClasses[VIEWCLASS_128_BITS] = pair<vector<deUint32>, vector<deUint32> >();
2337	mixedViewClasses[VIEWCLASS_64_BITS] = pair<vector<deUint32>, vector<deUint32> >();
2338
2339	// 128 bits
2340
2341	// Non compressed
2342	mixedViewClasses[VIEWCLASS_128_BITS].first.push_back(GL_RGBA32F);
2343	mixedViewClasses[VIEWCLASS_128_BITS].first.push_back(GL_RGBA32UI);
2344	mixedViewClasses[VIEWCLASS_128_BITS].first.push_back(GL_RGBA32I);
2345
2346	// Compressed
2347	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA8_ETC2_EAC);
2348	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC);
2349	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RG11_EAC);
2350	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SIGNED_RG11_EAC);
2351	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_4x4);
2352	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_5x4);
2353	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_5x5);
2354	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_6x5);
2355	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_6x6);
2356	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_8x5);
2357	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_8x6);
2358	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_8x8);
2359	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_10x5);
2360	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_10x6);
2361	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_10x8);
2362	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_10x10);
2363	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_12x10);
2364	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_RGBA_ASTC_12x12);
2365	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4);
2366	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4);
2367	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5);
2368	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5);
2369	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6);
2370	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5);
2371	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6);
2372	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8);
2373	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5);
2374	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6);
2375	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8);
2376	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10);
2377	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10);
2378	mixedViewClasses[VIEWCLASS_128_BITS].second.push_back(GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12);
2379
2380	// 64 bits
2381
2382	// Non compressed
2383	mixedViewClasses[VIEWCLASS_64_BITS].first.push_back(GL_RGBA16F);
2384	mixedViewClasses[VIEWCLASS_64_BITS].first.push_back(GL_RGBA16UI);
2385	mixedViewClasses[VIEWCLASS_64_BITS].first.push_back(GL_RGBA16I);
2386
2387	mixedViewClasses[VIEWCLASS_64_BITS].first.push_back(GL_RG32F);
2388	mixedViewClasses[VIEWCLASS_64_BITS].first.push_back(GL_RG32UI);
2389	mixedViewClasses[VIEWCLASS_64_BITS].first.push_back(GL_RG32I);
2390
2391	// Compressed
2392	mixedViewClasses[VIEWCLASS_64_BITS].second.push_back(GL_COMPRESSED_R11_EAC);
2393	mixedViewClasses[VIEWCLASS_64_BITS].second.push_back(GL_COMPRESSED_SIGNED_R11_EAC);
2394
2395	for (map<ViewClass, vector<deUint32> >::const_iterator viewClassIter = textureFormatViewClasses.begin(); viewClassIter != textureFormatViewClasses.end(); ++viewClassIter)
2396	{
2397		const vector<deUint32>&	formats		= viewClassIter->second;
2398		const ViewClass			viewClass	= viewClassIter->first;
2399		TestCaseGroup* const	viewGroup	= new TestCaseGroup(m_context, viewClassToName(viewClass), viewClassToName(viewClass));
2400
2401		nonCompressedGroup->addChild(viewGroup);
2402
2403		for (int srcFormatNdx = 0; srcFormatNdx < (int)formats.size(); srcFormatNdx++)
2404		for (int dstFormatNdx = 0; dstFormatNdx < (int)formats.size(); dstFormatNdx++)
2405		{
2406			const deUint32 srcFormat = formats[srcFormatNdx];
2407			const deUint32 dstFormat = formats[dstFormatNdx];
2408
2409			if (srcFormat != dstFormat && isFloatFormat(srcFormat) && isFloatFormat(dstFormat))
2410				continue;
2411
2412			addCopyTests(viewGroup, srcFormat, dstFormat);
2413		}
2414	}
2415
2416	for (map<ViewClass, vector<deUint32> >::const_iterator viewClassIter = compressedTextureFormatViewClasses.begin(); viewClassIter != compressedTextureFormatViewClasses.end(); ++viewClassIter)
2417	{
2418		const vector<deUint32>&	formats		= viewClassIter->second;
2419		const ViewClass			viewClass	= viewClassIter->first;
2420		TestCaseGroup* const	viewGroup	= new TestCaseGroup(m_context, viewClassToName(viewClass), viewClassToName(viewClass));
2421
2422		compressedGroup->addChild(viewGroup);
2423
2424		for (int srcFormatNdx = 0; srcFormatNdx < (int)formats.size(); srcFormatNdx++)
2425		for (int dstFormatNdx = 0; dstFormatNdx < (int)formats.size(); dstFormatNdx++)
2426		{
2427			const deUint32 srcFormat = formats[srcFormatNdx];
2428			const deUint32 dstFormat = formats[dstFormatNdx];
2429
2430			if (srcFormat != dstFormat && isFloatFormat(srcFormat) && isFloatFormat(dstFormat))
2431				continue;
2432
2433			addCopyTests(viewGroup, srcFormat, dstFormat);
2434		}
2435	}
2436
2437	for (map<ViewClass, pair<vector<deUint32>, vector<deUint32> > >::const_iterator iter = mixedViewClasses.begin(); iter != mixedViewClasses.end(); ++iter)
2438	{
2439		const ViewClass			viewClass				= iter->first;
2440		const string			viewClassName			= string(viewClassToName(viewClass)) + "_mixed";
2441		TestCaseGroup* const	viewGroup				= new TestCaseGroup(m_context, viewClassName.c_str(), viewClassName.c_str());
2442
2443		const vector<deUint32>	nonCompressedFormats	= iter->second.first;
2444		const vector<deUint32>	compressedFormats		= iter->second.second;
2445
2446		mixedGroup->addChild(viewGroup);
2447
2448		for (int srcFormatNdx = 0; srcFormatNdx < (int)nonCompressedFormats.size(); srcFormatNdx++)
2449		for (int dstFormatNdx = 0; dstFormatNdx < (int)compressedFormats.size(); dstFormatNdx++)
2450		{
2451			const deUint32 srcFormat = nonCompressedFormats[srcFormatNdx];
2452			const deUint32 dstFormat = compressedFormats[dstFormatNdx];
2453
2454			if (srcFormat != dstFormat && isFloatFormat(srcFormat) && isFloatFormat(dstFormat))
2455				continue;
2456
2457			addCopyTests(viewGroup, srcFormat, dstFormat);
2458			addCopyTests(viewGroup, dstFormat, srcFormat);
2459		}
2460	}
2461}
2462
2463} // anonymous
2464
2465TestCaseGroup* createCopyImageTests (Context& context)
2466{
2467	return new CopyImageTests(context);
2468}
2469
2470} // Functional
2471} // gles31
2472} // deqp
2473