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      1 /*-------------------------------------------------------------------------
      2  * drawElements Quality Program OpenGL (ES) 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 Draw tests
     22  *//*--------------------------------------------------------------------*/
     23 
     24 #include "glsDrawTest.hpp"
     25 
     26 #include "deRandom.h"
     27 #include "deRandom.hpp"
     28 #include "deMath.h"
     29 #include "deStringUtil.hpp"
     30 #include "deFloat16.h"
     31 #include "deUniquePtr.hpp"
     32 
     33 #include "tcuTestLog.hpp"
     34 #include "tcuPixelFormat.hpp"
     35 #include "tcuRGBA.hpp"
     36 #include "tcuSurface.hpp"
     37 #include "tcuVector.hpp"
     38 #include "tcuTestLog.hpp"
     39 #include "tcuRenderTarget.hpp"
     40 #include "tcuStringTemplate.hpp"
     41 #include "tcuImageCompare.hpp"
     42 #include "tcuFloat.hpp"
     43 #include "tcuTextureUtil.hpp"
     44 
     45 #include "gluPixelTransfer.hpp"
     46 #include "gluCallLogWrapper.hpp"
     47 
     48 #include "sglrContext.hpp"
     49 #include "sglrReferenceContext.hpp"
     50 #include "sglrGLContext.hpp"
     51 
     52 #include "rrGenericVector.hpp"
     53 
     54 #include <cstring>
     55 #include <cmath>
     56 #include <vector>
     57 #include <sstream>
     58 #include <limits>
     59 
     60 #include "glwDefs.hpp"
     61 #include "glwEnums.hpp"
     62 
     63 namespace deqp
     64 {
     65 namespace gls
     66 {
     67 namespace
     68 {
     69 
     70 using tcu::TestLog;
     71 using namespace glw; // GL types
     72 
     73 const int MAX_RENDER_TARGET_SIZE = 512;
     74 
     75 // Utils
     76 
     77 static GLenum targetToGL (DrawTestSpec::Target target)
     78 {
     79 	DE_ASSERT(target < DrawTestSpec::TARGET_LAST);
     80 
     81 	static const GLenum targets[] =
     82 	{
     83 		GL_ELEMENT_ARRAY_BUFFER,	// TARGET_ELEMENT_ARRAY = 0,
     84 		GL_ARRAY_BUFFER				// TARGET_ARRAY,
     85 	};
     86 
     87 	return targets[(int)target];
     88 }
     89 
     90 static GLenum usageToGL (DrawTestSpec::Usage usage)
     91 {
     92 	DE_ASSERT(usage < DrawTestSpec::USAGE_LAST);
     93 
     94 	static const GLenum usages[] =
     95 	{
     96 		GL_DYNAMIC_DRAW,	// USAGE_DYNAMIC_DRAW = 0,
     97 		GL_STATIC_DRAW,		// USAGE_STATIC_DRAW,
     98 		GL_STREAM_DRAW,		// USAGE_STREAM_DRAW,
     99 
    100 		GL_STREAM_READ,		// USAGE_STREAM_READ,
    101 		GL_STREAM_COPY,		// USAGE_STREAM_COPY,
    102 
    103 		GL_STATIC_READ,		// USAGE_STATIC_READ,
    104 		GL_STATIC_COPY,		// USAGE_STATIC_COPY,
    105 
    106 		GL_DYNAMIC_READ,	// USAGE_DYNAMIC_READ,
    107 		GL_DYNAMIC_COPY		// USAGE_DYNAMIC_COPY,
    108 	};
    109 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(usages) == DrawTestSpec::USAGE_LAST);
    110 
    111 	return usages[(int)usage];
    112 }
    113 
    114 static GLenum inputTypeToGL (DrawTestSpec::InputType type)
    115 {
    116 	DE_ASSERT(type < DrawTestSpec::INPUTTYPE_LAST);
    117 
    118 	static const GLenum types[] =
    119 	{
    120 		GL_FLOAT,				// INPUTTYPE_FLOAT = 0,
    121 		GL_FIXED,				// INPUTTYPE_FIXED,
    122 		GL_DOUBLE,				// INPUTTYPE_DOUBLE
    123 		GL_BYTE,				// INPUTTYPE_BYTE,
    124 		GL_SHORT,				// INPUTTYPE_SHORT,
    125 		GL_UNSIGNED_BYTE,		// INPUTTYPE_UNSIGNED_BYTE,
    126 		GL_UNSIGNED_SHORT,		// INPUTTYPE_UNSIGNED_SHORT,
    127 
    128 		GL_INT,					// INPUTTYPE_INT,
    129 		GL_UNSIGNED_INT,		// INPUTTYPE_UNSIGNED_INT,
    130 		GL_HALF_FLOAT,			// INPUTTYPE_HALF,
    131 		GL_UNSIGNED_INT_2_10_10_10_REV, // INPUTTYPE_UNSIGNED_INT_2_10_10_10,
    132 		GL_INT_2_10_10_10_REV			// INPUTTYPE_INT_2_10_10_10,
    133 	};
    134 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(types) == DrawTestSpec::INPUTTYPE_LAST);
    135 
    136 	return types[(int)type];
    137 }
    138 
    139 static std::string outputTypeToGLType (DrawTestSpec::OutputType type)
    140 {
    141 	DE_ASSERT(type < DrawTestSpec::OUTPUTTYPE_LAST);
    142 
    143 	static const char* types[] =
    144 	{
    145 		"float",		// OUTPUTTYPE_FLOAT = 0,
    146 		"vec2",			// OUTPUTTYPE_VEC2,
    147 		"vec3",			// OUTPUTTYPE_VEC3,
    148 		"vec4",			// OUTPUTTYPE_VEC4,
    149 
    150 		"int",			// OUTPUTTYPE_INT,
    151 		"uint",			// OUTPUTTYPE_UINT,
    152 
    153 		"ivec2",		// OUTPUTTYPE_IVEC2,
    154 		"ivec3",		// OUTPUTTYPE_IVEC3,
    155 		"ivec4",		// OUTPUTTYPE_IVEC4,
    156 
    157 		"uvec2",		// OUTPUTTYPE_UVEC2,
    158 		"uvec3",		// OUTPUTTYPE_UVEC3,
    159 		"uvec4",		// OUTPUTTYPE_UVEC4,
    160 	};
    161 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(types) == DrawTestSpec::OUTPUTTYPE_LAST);
    162 
    163 	return types[type];
    164 }
    165 
    166 static GLenum primitiveToGL (DrawTestSpec::Primitive primitive)
    167 {
    168 	GLenum primitives[] =
    169 	{
    170 		GL_POINTS,						// PRIMITIVE_POINTS = 0,
    171 		GL_TRIANGLES,					// PRIMITIVE_TRIANGLES,
    172 		GL_TRIANGLE_FAN,				// PRIMITIVE_TRIANGLE_FAN,
    173 		GL_TRIANGLE_STRIP,				// PRIMITIVE_TRIANGLE_STRIP,
    174 		GL_LINES,						// PRIMITIVE_LINES
    175 		GL_LINE_STRIP,					// PRIMITIVE_LINE_STRIP
    176 		GL_LINE_LOOP,					// PRIMITIVE_LINE_LOOP
    177 		GL_LINES_ADJACENCY,				// PRIMITIVE_LINES_ADJACENCY
    178 		GL_LINE_STRIP_ADJACENCY,		// PRIMITIVE_LINE_STRIP_ADJACENCY
    179 		GL_TRIANGLES_ADJACENCY,			// PRIMITIVE_TRIANGLES_ADJACENCY
    180 		GL_TRIANGLE_STRIP_ADJACENCY,	// PRIMITIVE_TRIANGLE_STRIP_ADJACENCY
    181 	};
    182 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(primitives) == DrawTestSpec::PRIMITIVE_LAST);
    183 
    184 	return primitives[(int)primitive];
    185 }
    186 
    187 static deUint32 indexTypeToGL (DrawTestSpec::IndexType indexType)
    188 {
    189 	GLenum indexTypes[] =
    190 	{
    191 		GL_UNSIGNED_BYTE,	// INDEXTYPE_BYTE = 0,
    192 		GL_UNSIGNED_SHORT,	// INDEXTYPE_SHORT,
    193 		GL_UNSIGNED_INT,	// INDEXTYPE_INT,
    194 	};
    195 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(indexTypes) == DrawTestSpec::INDEXTYPE_LAST);
    196 
    197 	return indexTypes[(int)indexType];
    198 }
    199 
    200 static bool inputTypeIsFloatType (DrawTestSpec::InputType type)
    201 {
    202 	if (type == DrawTestSpec::INPUTTYPE_FLOAT)
    203 		return true;
    204 	if (type == DrawTestSpec::INPUTTYPE_FIXED)
    205 		return true;
    206 	if (type == DrawTestSpec::INPUTTYPE_HALF)
    207 		return true;
    208 	if (type == DrawTestSpec::INPUTTYPE_DOUBLE)
    209 		return true;
    210 	return false;
    211 }
    212 
    213 static bool outputTypeIsFloatType (DrawTestSpec::OutputType type)
    214 {
    215 	if (type == DrawTestSpec::OUTPUTTYPE_FLOAT
    216 		|| type == DrawTestSpec::OUTPUTTYPE_VEC2
    217 		|| type == DrawTestSpec::OUTPUTTYPE_VEC3
    218 		|| type == DrawTestSpec::OUTPUTTYPE_VEC4)
    219 		return true;
    220 
    221 	return false;
    222 }
    223 
    224 static bool outputTypeIsIntType (DrawTestSpec::OutputType type)
    225 {
    226 	if (type == DrawTestSpec::OUTPUTTYPE_INT
    227 		|| type == DrawTestSpec::OUTPUTTYPE_IVEC2
    228 		|| type == DrawTestSpec::OUTPUTTYPE_IVEC3
    229 		|| type == DrawTestSpec::OUTPUTTYPE_IVEC4)
    230 		return true;
    231 
    232 	return false;
    233 }
    234 
    235 static bool outputTypeIsUintType (DrawTestSpec::OutputType type)
    236 {
    237 	if (type == DrawTestSpec::OUTPUTTYPE_UINT
    238 		|| type == DrawTestSpec::OUTPUTTYPE_UVEC2
    239 		|| type == DrawTestSpec::OUTPUTTYPE_UVEC3
    240 		|| type == DrawTestSpec::OUTPUTTYPE_UVEC4)
    241 		return true;
    242 
    243 	return false;
    244 }
    245 
    246 static size_t getElementCount (DrawTestSpec::Primitive primitive, size_t primitiveCount)
    247 {
    248 	switch (primitive)
    249 	{
    250 		case DrawTestSpec::PRIMITIVE_POINTS:						return primitiveCount;
    251 		case DrawTestSpec::PRIMITIVE_TRIANGLES:						return primitiveCount * 3;
    252 		case DrawTestSpec::PRIMITIVE_TRIANGLE_FAN:					return primitiveCount + 2;
    253 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP:				return primitiveCount + 2;
    254 		case DrawTestSpec::PRIMITIVE_LINES:							return primitiveCount * 2;
    255 		case DrawTestSpec::PRIMITIVE_LINE_STRIP:					return primitiveCount + 1;
    256 		case DrawTestSpec::PRIMITIVE_LINE_LOOP:						return (primitiveCount==1) ? (2) : (primitiveCount);
    257 		case DrawTestSpec::PRIMITIVE_LINES_ADJACENCY:				return primitiveCount * 4;
    258 		case DrawTestSpec::PRIMITIVE_LINE_STRIP_ADJACENCY:			return primitiveCount + 3;
    259 		case DrawTestSpec::PRIMITIVE_TRIANGLES_ADJACENCY:			return primitiveCount * 6;
    260 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP_ADJACENCY:		return primitiveCount * 2 + 4;
    261 		default:
    262 			DE_ASSERT(false);
    263 			return 0;
    264 	}
    265 }
    266 
    267 struct MethodInfo
    268 {
    269 	bool indexed;
    270 	bool instanced;
    271 	bool ranged;
    272 	bool first;
    273 	bool baseVertex;
    274 	bool indirect;
    275 };
    276 
    277 static MethodInfo getMethodInfo (gls::DrawTestSpec::DrawMethod method)
    278 {
    279 	static const MethodInfo infos[] =
    280 	{
    281 		//	indexed		instanced	ranged		first		baseVertex	indirect
    282 		{	false,		false,		false,		true,		false,		false	}, //!< DRAWMETHOD_DRAWARRAYS,
    283 		{	false,		true,		false,		true,		false,		false	}, //!< DRAWMETHOD_DRAWARRAYS_INSTANCED,
    284 		{	false,		true,		false,		true,		false,		true	}, //!< DRAWMETHOD_DRAWARRAYS_INDIRECT,
    285 		{	true,		false,		false,		false,		false,		false	}, //!< DRAWMETHOD_DRAWELEMENTS,
    286 		{	true,		false,		true,		false,		false,		false	}, //!< DRAWMETHOD_DRAWELEMENTS_RANGED,
    287 		{	true,		true,		false,		false,		false,		false	}, //!< DRAWMETHOD_DRAWELEMENTS_INSTANCED,
    288 		{	true,		true,		false,		false,		true,		true	}, //!< DRAWMETHOD_DRAWELEMENTS_INDIRECT,
    289 		{	true,		false,		false,		false,		true,		false	}, //!< DRAWMETHOD_DRAWELEMENTS_BASEVERTEX,
    290 		{	true,		true,		false,		false,		true,		false	}, //!< DRAWMETHOD_DRAWELEMENTS_INSTANCED_BASEVERTEX,
    291 		{	true,		false,		true,		false,		true,		false	}, //!< DRAWMETHOD_DRAWELEMENTS_RANGED_BASEVERTEX,
    292 	};
    293 
    294 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(infos) == DrawTestSpec::DRAWMETHOD_LAST);
    295 	DE_ASSERT((int)method < DE_LENGTH_OF_ARRAY(infos));
    296 	return infos[(int)method];
    297 }
    298 
    299 template<class T>
    300 inline static void alignmentSafeAssignment (char* dst, T val)
    301 {
    302 	std::memcpy(dst, &val, sizeof(T));
    303 }
    304 
    305 static bool checkSpecsShaderCompatible (const DrawTestSpec& a, const DrawTestSpec& b)
    306 {
    307 	// Only the attributes matter
    308 	if (a.attribs.size() != b.attribs.size())
    309 		return false;
    310 
    311 	for (size_t ndx = 0; ndx < a.attribs.size(); ++ndx)
    312 	{
    313 		// Only the output type (== shader input type) matters and the usage in the shader.
    314 
    315 		if (a.attribs[ndx].additionalPositionAttribute != b.attribs[ndx].additionalPositionAttribute)
    316 			return false;
    317 
    318 		// component counts need not to match
    319 		if (outputTypeIsFloatType(a.attribs[ndx].outputType) && outputTypeIsFloatType(b.attribs[ndx].outputType))
    320 			continue;
    321 		if (outputTypeIsIntType(a.attribs[ndx].outputType) && outputTypeIsIntType(b.attribs[ndx].outputType))
    322 			continue;
    323 		if (outputTypeIsUintType(a.attribs[ndx].outputType) && outputTypeIsUintType(b.attribs[ndx].outputType))
    324 			continue;
    325 
    326 		return false;
    327 	}
    328 
    329 	return true;
    330 }
    331 
    332 // generate random vectors in a way that does not depend on argument evaluation order
    333 
    334 tcu::Vec4 generateRandomVec4 (de::Random& random)
    335 {
    336 	tcu::Vec4 retVal;
    337 
    338 	for (int i = 0; i < 4; ++i)
    339 		retVal[i] = random.getFloat();
    340 
    341 	return retVal;
    342 }
    343 
    344 tcu::IVec4 generateRandomIVec4 (de::Random& random)
    345 {
    346 	tcu::IVec4 retVal;
    347 
    348 	for (int i = 0; i < 4; ++i)
    349 		retVal[i] = random.getUint32();
    350 
    351 	return retVal;
    352 }
    353 
    354 tcu::UVec4 generateRandomUVec4 (de::Random& random)
    355 {
    356 	tcu::UVec4 retVal;
    357 
    358 	for (int i = 0; i < 4; ++i)
    359 		retVal[i] = random.getUint32();
    360 
    361 	return retVal;
    362 }
    363 
    364 // IterationLogSectionEmitter
    365 
    366 class IterationLogSectionEmitter
    367 {
    368 public:
    369 								IterationLogSectionEmitter		(tcu::TestLog& log, size_t testIteration, size_t testIterations, const std::string& description, bool enabled);
    370 								~IterationLogSectionEmitter		(void);
    371 private:
    372 								IterationLogSectionEmitter		(const IterationLogSectionEmitter&); // delete
    373 	IterationLogSectionEmitter&	operator=						(const IterationLogSectionEmitter&); // delete
    374 
    375 	tcu::TestLog&				m_log;
    376 	bool						m_enabled;
    377 };
    378 
    379 IterationLogSectionEmitter::IterationLogSectionEmitter (tcu::TestLog& log, size_t testIteration, size_t testIterations, const std::string& description, bool enabled)
    380 	: m_log		(log)
    381 	, m_enabled	(enabled)
    382 {
    383 	if (m_enabled)
    384 	{
    385 		std::ostringstream buf;
    386 		buf << "Iteration " << (testIteration+1) << "/" << testIterations;
    387 
    388 		if (!description.empty())
    389 			buf << " - " << description;
    390 
    391 		m_log << tcu::TestLog::Section(buf.str(), buf.str());
    392 	}
    393 }
    394 
    395 IterationLogSectionEmitter::~IterationLogSectionEmitter (void)
    396 {
    397 	if (m_enabled)
    398 		m_log << tcu::TestLog::EndSection;
    399 }
    400 
    401 // GLValue
    402 
    403 class GLValue
    404 {
    405 public:
    406 
    407 	template<class Type>
    408 	class WrappedType
    409 	{
    410 	public:
    411 		static WrappedType<Type>	create			(Type value)							{ WrappedType<Type> v; v.m_value = value; return v; }
    412 		inline Type					getValue		(void) const							{ return m_value; }
    413 
    414 		inline WrappedType<Type>	operator+		(const WrappedType<Type>& other) const	{ return WrappedType<Type>::create(m_value + other.getValue()); }
    415 		inline WrappedType<Type>	operator*		(const WrappedType<Type>& other) const	{ return WrappedType<Type>::create(m_value * other.getValue()); }
    416 		inline WrappedType<Type>	operator/		(const WrappedType<Type>& other) const	{ return WrappedType<Type>::create(m_value / other.getValue()); }
    417 		inline WrappedType<Type>	operator-		(const WrappedType<Type>& other) const	{ return WrappedType<Type>::create(m_value - other.getValue()); }
    418 
    419 		inline WrappedType<Type>&	operator+=		(const WrappedType<Type>& other)		{ m_value += other.getValue(); return *this; }
    420 		inline WrappedType<Type>&	operator*=		(const WrappedType<Type>& other)		{ m_value *= other.getValue(); return *this; }
    421 		inline WrappedType<Type>&	operator/=		(const WrappedType<Type>& other)		{ m_value /= other.getValue(); return *this; }
    422 		inline WrappedType<Type>&	operator-=		(const WrappedType<Type>& other)		{ m_value -= other.getValue(); return *this; }
    423 
    424 		inline bool					operator==		(const WrappedType<Type>& other) const	{ return m_value == other.m_value; }
    425 		inline bool					operator!=		(const WrappedType<Type>& other) const	{ return m_value != other.m_value; }
    426 		inline bool					operator<		(const WrappedType<Type>& other) const	{ return m_value < other.m_value; }
    427 		inline bool					operator>		(const WrappedType<Type>& other) const	{ return m_value > other.m_value; }
    428 		inline bool					operator<=		(const WrappedType<Type>& other) const	{ return m_value <= other.m_value; }
    429 		inline bool					operator>=		(const WrappedType<Type>& other) const	{ return m_value >= other.m_value; }
    430 
    431 		inline 						operator Type	(void) const							{ return m_value; }
    432 		template<class T>
    433 		inline T					to				(void) const							{ return (T)m_value; }
    434 	private:
    435 		Type	m_value;
    436 	};
    437 
    438 	typedef WrappedType<deInt16>	Short;
    439 	typedef WrappedType<deUint16>	Ushort;
    440 
    441 	typedef WrappedType<deInt8>		Byte;
    442 	typedef WrappedType<deUint8>	Ubyte;
    443 
    444 	typedef WrappedType<float>		Float;
    445 	typedef WrappedType<double>		Double;
    446 
    447 	typedef WrappedType<deInt32>	Int;
    448 	typedef WrappedType<deUint32>	Uint;
    449 
    450 	class Half
    451 	{
    452 	public:
    453 		static Half			create			(float value)				{ Half h; h.m_value = floatToHalf(value); return h; }
    454 		inline deFloat16	getValue		(void) const				{ return m_value; }
    455 
    456 		inline Half			operator+		(const Half& other) const	{ return create(halfToFloat(m_value) + halfToFloat(other.getValue())); }
    457 		inline Half			operator*		(const Half& other) const	{ return create(halfToFloat(m_value) * halfToFloat(other.getValue())); }
    458 		inline Half			operator/		(const Half& other) const	{ return create(halfToFloat(m_value) / halfToFloat(other.getValue())); }
    459 		inline Half			operator-		(const Half& other) const	{ return create(halfToFloat(m_value) - halfToFloat(other.getValue())); }
    460 
    461 		inline Half&		operator+=		(const Half& other)			{ m_value = floatToHalf(halfToFloat(other.getValue()) + halfToFloat(m_value)); return *this; }
    462 		inline Half&		operator*=		(const Half& other)			{ m_value = floatToHalf(halfToFloat(other.getValue()) * halfToFloat(m_value)); return *this; }
    463 		inline Half&		operator/=		(const Half& other)			{ m_value = floatToHalf(halfToFloat(other.getValue()) / halfToFloat(m_value)); return *this; }
    464 		inline Half&		operator-=		(const Half& other)			{ m_value = floatToHalf(halfToFloat(other.getValue()) - halfToFloat(m_value)); return *this; }
    465 
    466 		inline bool			operator==		(const Half& other) const	{ return m_value == other.m_value; }
    467 		inline bool			operator!=		(const Half& other) const	{ return m_value != other.m_value; }
    468 		inline bool			operator<		(const Half& other) const	{ return halfToFloat(m_value) < halfToFloat(other.m_value); }
    469 		inline bool			operator>		(const Half& other) const	{ return halfToFloat(m_value) > halfToFloat(other.m_value); }
    470 		inline bool			operator<=		(const Half& other) const	{ return halfToFloat(m_value) <= halfToFloat(other.m_value); }
    471 		inline bool			operator>=		(const Half& other) const	{ return halfToFloat(m_value) >= halfToFloat(other.m_value); }
    472 
    473 		template<class T>
    474 		inline T			to				(void) const				{ return (T)halfToFloat(m_value); }
    475 
    476 		inline static deFloat16	floatToHalf		(float f);
    477 		inline static float		halfToFloat		(deFloat16 h);
    478 	private:
    479 		deFloat16 m_value;
    480 	};
    481 
    482 	class Fixed
    483 	{
    484 	public:
    485 		static Fixed		create			(deInt32 value)				{ Fixed v; v.m_value = value; return v; }
    486 		inline deInt32		getValue		(void) const				{ return m_value; }
    487 
    488 		inline Fixed		operator+		(const Fixed& other) const	{ return create(m_value + other.getValue()); }
    489 		inline Fixed		operator*		(const Fixed& other) const	{ return create(m_value * other.getValue()); }
    490 		inline Fixed		operator/		(const Fixed& other) const	{ return create(m_value / other.getValue()); }
    491 		inline Fixed		operator-		(const Fixed& other) const	{ return create(m_value - other.getValue()); }
    492 
    493 		inline Fixed&		operator+=		(const Fixed& other)		{ m_value += other.getValue(); return *this; }
    494 		inline Fixed&		operator*=		(const Fixed& other)		{ m_value *= other.getValue(); return *this; }
    495 		inline Fixed&		operator/=		(const Fixed& other)		{ m_value /= other.getValue(); return *this; }
    496 		inline Fixed&		operator-=		(const Fixed& other)		{ m_value -= other.getValue(); return *this; }
    497 
    498 		inline bool			operator==		(const Fixed& other) const	{ return m_value == other.m_value; }
    499 		inline bool			operator!=		(const Fixed& other) const	{ return m_value != other.m_value; }
    500 		inline bool			operator<		(const Fixed& other) const	{ return m_value < other.m_value; }
    501 		inline bool			operator>		(const Fixed& other) const	{ return m_value > other.m_value; }
    502 		inline bool			operator<=		(const Fixed& other) const	{ return m_value <= other.m_value; }
    503 		inline bool			operator>=		(const Fixed& other) const	{ return m_value >= other.m_value; }
    504 
    505 		inline 				operator deInt32 (void) const				{ return m_value; }
    506 		template<class T>
    507 		inline T			to				(void) const				{ return (T)m_value; }
    508 	private:
    509 		deInt32				m_value;
    510 	};
    511 
    512 	// \todo [mika] This is pretty messy
    513 						GLValue			(void)			: type(DrawTestSpec::INPUTTYPE_LAST) {}
    514 	explicit			GLValue			(Float value)	: type(DrawTestSpec::INPUTTYPE_FLOAT),				fl(value)	{}
    515 	explicit			GLValue			(Fixed value)	: type(DrawTestSpec::INPUTTYPE_FIXED),				fi(value)	{}
    516 	explicit			GLValue			(Byte value)	: type(DrawTestSpec::INPUTTYPE_BYTE),				b(value)	{}
    517 	explicit			GLValue			(Ubyte value)	: type(DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE),		ub(value)	{}
    518 	explicit			GLValue			(Short value)	: type(DrawTestSpec::INPUTTYPE_SHORT),				s(value)	{}
    519 	explicit			GLValue			(Ushort value)	: type(DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT),		us(value)	{}
    520 	explicit			GLValue			(Int value)		: type(DrawTestSpec::INPUTTYPE_INT),				i(value)	{}
    521 	explicit			GLValue			(Uint value)	: type(DrawTestSpec::INPUTTYPE_UNSIGNED_INT),		ui(value)	{}
    522 	explicit			GLValue			(Half value)	: type(DrawTestSpec::INPUTTYPE_HALF),				h(value)	{}
    523 	explicit			GLValue			(Double value)	: type(DrawTestSpec::INPUTTYPE_DOUBLE),				d(value)	{}
    524 
    525 	float				toFloat			(void) const;
    526 
    527 	static GLValue		getMaxValue		(DrawTestSpec::InputType type);
    528 	static GLValue		getMinValue		(DrawTestSpec::InputType type);
    529 
    530 	DrawTestSpec::InputType	type;
    531 
    532 	union
    533 	{
    534 		Float		fl;
    535 		Fixed		fi;
    536 		Double		d;
    537 		Byte		b;
    538 		Ubyte		ub;
    539 		Short		s;
    540 		Ushort		us;
    541 		Int			i;
    542 		Uint		ui;
    543 		Half		h;
    544 	};
    545 };
    546 
    547 inline deFloat16 GLValue::Half::floatToHalf (float f)
    548 {
    549 	// No denorm support.
    550 	tcu::Float<deUint16, 5, 10, 15, tcu::FLOAT_HAS_SIGN> v(f);
    551 	DE_ASSERT(!v.isNaN() && !v.isInf());
    552 	return v.bits();
    553 }
    554 
    555 inline float GLValue::Half::halfToFloat (deFloat16 h)
    556 {
    557 	return tcu::Float16((deUint16)h).asFloat();
    558 }
    559 
    560 float GLValue::toFloat (void) const
    561 {
    562 	switch (type)
    563 	{
    564 		case DrawTestSpec::INPUTTYPE_FLOAT:
    565 			return fl.getValue();
    566 			break;
    567 
    568 		case DrawTestSpec::INPUTTYPE_BYTE:
    569 			return b.getValue();
    570 			break;
    571 
    572 		case DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE:
    573 			return ub.getValue();
    574 			break;
    575 
    576 		case DrawTestSpec::INPUTTYPE_SHORT:
    577 			return s.getValue();
    578 			break;
    579 
    580 		case DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT:
    581 			return us.getValue();
    582 			break;
    583 
    584 		case DrawTestSpec::INPUTTYPE_FIXED:
    585 		{
    586 			int maxValue = 65536;
    587 			return (float)(double(2 * fi.getValue() + 1) / (maxValue - 1));
    588 
    589 			break;
    590 		}
    591 
    592 		case DrawTestSpec::INPUTTYPE_UNSIGNED_INT:
    593 			return (float)ui.getValue();
    594 			break;
    595 
    596 		case DrawTestSpec::INPUTTYPE_INT:
    597 			return (float)i.getValue();
    598 			break;
    599 
    600 		case DrawTestSpec::INPUTTYPE_HALF:
    601 			return h.to<float>();
    602 			break;
    603 
    604 		case DrawTestSpec::INPUTTYPE_DOUBLE:
    605 			return d.to<float>();
    606 			break;
    607 
    608 		default:
    609 			DE_ASSERT(false);
    610 			return 0.0f;
    611 			break;
    612 	};
    613 }
    614 
    615 GLValue GLValue::getMaxValue (DrawTestSpec::InputType type)
    616 {
    617 	GLValue rangesHi[(int)DrawTestSpec::INPUTTYPE_LAST];
    618 
    619 	rangesHi[(int)DrawTestSpec::INPUTTYPE_FLOAT]			= GLValue(Float::create(127.0f));
    620 	rangesHi[(int)DrawTestSpec::INPUTTYPE_DOUBLE]			= GLValue(Double::create(127.0f));
    621 	rangesHi[(int)DrawTestSpec::INPUTTYPE_BYTE]				= GLValue(Byte::create(127));
    622 	rangesHi[(int)DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE]	= GLValue(Ubyte::create(255));
    623 	rangesHi[(int)DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT]	= GLValue(Ushort::create(65530));
    624 	rangesHi[(int)DrawTestSpec::INPUTTYPE_SHORT]			= GLValue(Short::create(32760));
    625 	rangesHi[(int)DrawTestSpec::INPUTTYPE_FIXED]			= GLValue(Fixed::create(32760));
    626 	rangesHi[(int)DrawTestSpec::INPUTTYPE_INT]				= GLValue(Int::create(2147483647));
    627 	rangesHi[(int)DrawTestSpec::INPUTTYPE_UNSIGNED_INT]		= GLValue(Uint::create(4294967295u));
    628 	rangesHi[(int)DrawTestSpec::INPUTTYPE_HALF]				= GLValue(Half::create(256.0f));
    629 
    630 	return rangesHi[(int)type];
    631 }
    632 
    633 GLValue GLValue::getMinValue (DrawTestSpec::InputType type)
    634 {
    635 	GLValue rangesLo[(int)DrawTestSpec::INPUTTYPE_LAST];
    636 
    637 	rangesLo[(int)DrawTestSpec::INPUTTYPE_FLOAT]			= GLValue(Float::create(-127.0f));
    638 	rangesLo[(int)DrawTestSpec::INPUTTYPE_DOUBLE]			= GLValue(Double::create(-127.0f));
    639 	rangesLo[(int)DrawTestSpec::INPUTTYPE_BYTE]				= GLValue(Byte::create(-127));
    640 	rangesLo[(int)DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE]	= GLValue(Ubyte::create(0));
    641 	rangesLo[(int)DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT]	= GLValue(Ushort::create(0));
    642 	rangesLo[(int)DrawTestSpec::INPUTTYPE_SHORT]			= GLValue(Short::create(-32760));
    643 	rangesLo[(int)DrawTestSpec::INPUTTYPE_FIXED]			= GLValue(Fixed::create(-32760));
    644 	rangesLo[(int)DrawTestSpec::INPUTTYPE_INT]				= GLValue(Int::create(-2147483647));
    645 	rangesLo[(int)DrawTestSpec::INPUTTYPE_UNSIGNED_INT]		= GLValue(Uint::create(0));
    646 	rangesLo[(int)DrawTestSpec::INPUTTYPE_HALF]				= GLValue(Half::create(-256.0f));
    647 
    648 	return rangesLo[(int)type];
    649 }
    650 
    651 template<typename T>
    652 struct GLValueTypeTraits;
    653 
    654 template<> struct GLValueTypeTraits<GLValue::Float>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_FLOAT;			};
    655 template<> struct GLValueTypeTraits<GLValue::Double> { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_DOUBLE;			};
    656 template<> struct GLValueTypeTraits<GLValue::Byte>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_BYTE;			};
    657 template<> struct GLValueTypeTraits<GLValue::Ubyte>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE;	};
    658 template<> struct GLValueTypeTraits<GLValue::Ushort> { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT;	};
    659 template<> struct GLValueTypeTraits<GLValue::Short>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_SHORT;			};
    660 template<> struct GLValueTypeTraits<GLValue::Fixed>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_FIXED;			};
    661 template<> struct GLValueTypeTraits<GLValue::Int>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_INT;			};
    662 template<> struct GLValueTypeTraits<GLValue::Uint>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_UNSIGNED_INT;	};
    663 template<> struct GLValueTypeTraits<GLValue::Half>	 { static const DrawTestSpec::InputType Type = DrawTestSpec::INPUTTYPE_HALF;			};
    664 
    665 template<typename T>
    666 inline T extractGLValue (const GLValue& v);
    667 
    668 template<> GLValue::Float	inline extractGLValue<GLValue::Float>		(const GLValue& v) { return v.fl; };
    669 template<> GLValue::Double	inline extractGLValue<GLValue::Double>		(const GLValue& v) { return v.d; };
    670 template<> GLValue::Byte	inline extractGLValue<GLValue::Byte>		(const GLValue& v) { return v.b; };
    671 template<> GLValue::Ubyte	inline extractGLValue<GLValue::Ubyte>		(const GLValue& v) { return v.ub; };
    672 template<> GLValue::Ushort	inline extractGLValue<GLValue::Ushort>		(const GLValue& v) { return v.us; };
    673 template<> GLValue::Short	inline extractGLValue<GLValue::Short>		(const GLValue& v) { return v.s; };
    674 template<> GLValue::Fixed	inline extractGLValue<GLValue::Fixed>		(const GLValue& v) { return v.fi; };
    675 template<> GLValue::Int		inline extractGLValue<GLValue::Int>			(const GLValue& v) { return v.i; };
    676 template<> GLValue::Uint	inline extractGLValue<GLValue::Uint>		(const GLValue& v) { return v.ui; };
    677 template<> GLValue::Half	inline extractGLValue<GLValue::Half>		(const GLValue& v) { return v.h; };
    678 
    679 template<class T>
    680 inline T getRandom (deRandom& rnd, T min, T max);
    681 
    682 template<>
    683 inline GLValue::Float getRandom (deRandom& rnd, GLValue::Float min, GLValue::Float max)
    684 {
    685 	if (max < min)
    686 		return min;
    687 
    688 	return GLValue::Float::create(min + deRandom_getFloat(&rnd) * (max.to<float>() - min.to<float>()));
    689 }
    690 
    691 template<>
    692 inline GLValue::Double getRandom (deRandom& rnd, GLValue::Double min, GLValue::Double max)
    693 {
    694 	if (max < min)
    695 		return min;
    696 
    697 	return GLValue::Double::create(min + deRandom_getFloat(&rnd) * (max.to<float>() - min.to<float>()));
    698 }
    699 
    700 template<>
    701 inline GLValue::Short getRandom (deRandom& rnd, GLValue::Short min, GLValue::Short max)
    702 {
    703 	if (max < min)
    704 		return min;
    705 
    706 	return GLValue::Short::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>()))));
    707 }
    708 
    709 template<>
    710 inline GLValue::Ushort getRandom (deRandom& rnd, GLValue::Ushort min, GLValue::Ushort max)
    711 {
    712 	if (max < min)
    713 		return min;
    714 
    715 	return GLValue::Ushort::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>()))));
    716 }
    717 
    718 template<>
    719 inline GLValue::Byte getRandom (deRandom& rnd, GLValue::Byte min, GLValue::Byte max)
    720 {
    721 	if (max < min)
    722 		return min;
    723 
    724 	return GLValue::Byte::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>()))));
    725 }
    726 
    727 template<>
    728 inline GLValue::Ubyte getRandom (deRandom& rnd, GLValue::Ubyte min, GLValue::Ubyte max)
    729 {
    730 	if (max < min)
    731 		return min;
    732 
    733 	return GLValue::Ubyte::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<int>() - min.to<int>()))));
    734 }
    735 
    736 template<>
    737 inline GLValue::Fixed getRandom (deRandom& rnd, GLValue::Fixed min, GLValue::Fixed max)
    738 {
    739 	if (max < min)
    740 		return min;
    741 
    742 	return GLValue::Fixed::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<deUint32>() - min.to<deUint32>()))));
    743 }
    744 
    745 template<>
    746 inline GLValue::Half getRandom (deRandom& rnd, GLValue::Half min, GLValue::Half max)
    747 {
    748 	if (max < min)
    749 		return min;
    750 
    751 	float fMax = max.to<float>();
    752 	float fMin = min.to<float>();
    753 	GLValue::Half h = GLValue::Half::create(fMin + deRandom_getFloat(&rnd) * (fMax - fMin));
    754 	return h;
    755 }
    756 
    757 template<>
    758 inline GLValue::Int getRandom (deRandom& rnd, GLValue::Int min, GLValue::Int max)
    759 {
    760 	if (max < min)
    761 		return min;
    762 
    763 	return GLValue::Int::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<deUint32>() - min.to<deUint32>()))));
    764 }
    765 
    766 template<>
    767 inline GLValue::Uint getRandom (deRandom& rnd, GLValue::Uint min, GLValue::Uint max)
    768 {
    769 	if (max < min)
    770 		return min;
    771 
    772 	return GLValue::Uint::create((min == max ? min : min + (deRandom_getUint32(&rnd) % (max.to<deUint32>() - min.to<deUint32>()))));
    773 }
    774 
    775 // Minimum difference required between coordinates
    776 template<class T>
    777 inline T minValue (void);
    778 
    779 template<>
    780 inline GLValue::Float minValue (void)
    781 {
    782 	return GLValue::Float::create(4 * 1.0f);
    783 }
    784 
    785 template<>
    786 inline GLValue::Double minValue (void)
    787 {
    788 	return GLValue::Double::create(4 * 1.0f);
    789 }
    790 
    791 template<>
    792 inline GLValue::Short minValue (void)
    793 {
    794 	return GLValue::Short::create(4 * 256);
    795 }
    796 
    797 template<>
    798 inline GLValue::Ushort minValue (void)
    799 {
    800 	return GLValue::Ushort::create(4 * 256);
    801 }
    802 
    803 template<>
    804 inline GLValue::Byte minValue (void)
    805 {
    806 	return GLValue::Byte::create(4 * 1);
    807 }
    808 
    809 template<>
    810 inline GLValue::Ubyte minValue (void)
    811 {
    812 	return GLValue::Ubyte::create(4 * 2);
    813 }
    814 
    815 template<>
    816 inline GLValue::Fixed minValue (void)
    817 {
    818 	return GLValue::Fixed::create(4 * 1);
    819 }
    820 
    821 template<>
    822 inline GLValue::Int minValue (void)
    823 {
    824 	return GLValue::Int::create(4 * 16777216);
    825 }
    826 
    827 template<>
    828 inline GLValue::Uint minValue (void)
    829 {
    830 	return GLValue::Uint::create(4 * 16777216);
    831 }
    832 
    833 template<>
    834 inline GLValue::Half minValue (void)
    835 {
    836 	return GLValue::Half::create(4 * 1.0f);
    837 }
    838 
    839 template<class T>
    840 inline T abs (T val);
    841 
    842 template<>
    843 inline GLValue::Fixed abs (GLValue::Fixed val)
    844 {
    845 	return GLValue::Fixed::create(0x7FFFu & val.getValue());
    846 }
    847 
    848 template<>
    849 inline GLValue::Ubyte abs (GLValue::Ubyte val)
    850 {
    851 	return val;
    852 }
    853 
    854 template<>
    855 inline GLValue::Byte abs (GLValue::Byte val)
    856 {
    857 	return GLValue::Byte::create(0x7Fu & val.getValue());
    858 }
    859 
    860 template<>
    861 inline GLValue::Ushort abs (GLValue::Ushort val)
    862 {
    863 	return val;
    864 }
    865 
    866 template<>
    867 inline GLValue::Short abs (GLValue::Short val)
    868 {
    869 	return GLValue::Short::create(0x7FFFu & val.getValue());
    870 }
    871 
    872 template<>
    873 inline GLValue::Float abs (GLValue::Float val)
    874 {
    875 	return GLValue::Float::create(std::fabs(val.to<float>()));
    876 }
    877 
    878 template<>
    879 inline GLValue::Double abs (GLValue::Double val)
    880 {
    881 	return GLValue::Double::create(std::fabs(val.to<float>()));
    882 }
    883 
    884 template<>
    885 inline GLValue::Uint abs (GLValue::Uint val)
    886 {
    887 	return val;
    888 }
    889 
    890 template<>
    891 inline GLValue::Int abs (GLValue::Int val)
    892 {
    893 	return GLValue::Int::create(0x7FFFFFFFu & val.getValue());
    894 }
    895 
    896 template<>
    897 inline GLValue::Half abs (GLValue::Half val)
    898 {
    899 	return GLValue::Half::create(std::fabs(val.to<float>()));
    900 }
    901 
    902 // AttriuteArray
    903 
    904 class AttributeArray
    905 {
    906 public:
    907 								AttributeArray		(DrawTestSpec::Storage storage, sglr::Context& context);
    908 								~AttributeArray		(void);
    909 
    910 	void						data				(DrawTestSpec::Target target, size_t size, const char* data, DrawTestSpec::Usage usage);
    911 	void						subdata				(DrawTestSpec::Target target, int offset, int size, const char* data);
    912 	void						setupArray			(bool bound, int offset, int size, DrawTestSpec::InputType inType, DrawTestSpec::OutputType outType, bool normalized, int stride, int instanceDivisor, const rr::GenericVec4& defaultAttrib, bool isPositionAttr, bool bgraComponentOrder);
    913 	void						bindAttribute		(deUint32 loc);
    914 	void						bindIndexArray		(DrawTestSpec::Target storage);
    915 
    916 	int							getComponentCount	(void) const { return m_componentCount; }
    917 	DrawTestSpec::Target		getTarget			(void) const { return m_target; }
    918 	DrawTestSpec::InputType		getInputType		(void) const { return m_inputType; }
    919 	DrawTestSpec::OutputType	getOutputType		(void) const { return m_outputType; }
    920 	DrawTestSpec::Storage		getStorageType		(void) const { return m_storage; }
    921 	bool						getNormalized		(void) const { return m_normalize; }
    922 	int							getStride			(void) const { return m_stride; }
    923 	bool						isBound				(void) const { return m_bound; }
    924 	bool						isPositionAttribute	(void) const { return m_isPositionAttr; }
    925 
    926 private:
    927 	DrawTestSpec::Storage		m_storage;
    928 	sglr::Context&				m_ctx;
    929 	deUint32					m_glBuffer;
    930 
    931 	int							m_size;
    932 	char*						m_data;
    933 	int							m_componentCount;
    934 	bool						m_bound;
    935 	DrawTestSpec::Target		m_target;
    936 	DrawTestSpec::InputType		m_inputType;
    937 	DrawTestSpec::OutputType	m_outputType;
    938 	bool						m_normalize;
    939 	int							m_stride;
    940 	int							m_offset;
    941 	rr::GenericVec4				m_defaultAttrib;
    942 	int							m_instanceDivisor;
    943 	bool						m_isPositionAttr;
    944 	bool						m_bgraOrder;
    945 };
    946 
    947 AttributeArray::AttributeArray (DrawTestSpec::Storage storage, sglr::Context& context)
    948 	: m_storage			(storage)
    949 	, m_ctx				(context)
    950 	, m_glBuffer		(0)
    951 	, m_size			(0)
    952 	, m_data			(DE_NULL)
    953 	, m_componentCount	(1)
    954 	, m_bound			(false)
    955 	, m_target			(DrawTestSpec::TARGET_ARRAY)
    956 	, m_inputType		(DrawTestSpec::INPUTTYPE_FLOAT)
    957 	, m_outputType		(DrawTestSpec::OUTPUTTYPE_VEC4)
    958 	, m_normalize		(false)
    959 	, m_stride			(0)
    960 	, m_offset			(0)
    961 	, m_instanceDivisor	(0)
    962 	, m_isPositionAttr	(false)
    963 	, m_bgraOrder		(false)
    964 {
    965 	if (m_storage == DrawTestSpec::STORAGE_BUFFER)
    966 	{
    967 		m_ctx.genBuffers(1, &m_glBuffer);
    968 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glGenBuffers()");
    969 	}
    970 }
    971 
    972 AttributeArray::~AttributeArray	(void)
    973 {
    974 	if (m_storage == DrawTestSpec::STORAGE_BUFFER)
    975 	{
    976 		m_ctx.deleteBuffers(1, &m_glBuffer);
    977 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDeleteBuffers()");
    978 	}
    979 	else if (m_storage == DrawTestSpec::STORAGE_USER)
    980 		delete[] m_data;
    981 	else
    982 		DE_ASSERT(false);
    983 }
    984 
    985 void AttributeArray::data (DrawTestSpec::Target target, size_t size, const char* ptr, DrawTestSpec::Usage usage)
    986 {
    987 	m_size = (int)size;
    988 	m_target = target;
    989 
    990 	if (m_storage == DrawTestSpec::STORAGE_BUFFER)
    991 	{
    992 		m_ctx.bindBuffer(targetToGL(target), m_glBuffer);
    993 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
    994 
    995 		m_ctx.bufferData(targetToGL(target), size, ptr, usageToGL(usage));
    996 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBufferData()");
    997 	}
    998 	else if (m_storage == DrawTestSpec::STORAGE_USER)
    999 	{
   1000 		if (m_data)
   1001 			delete[] m_data;
   1002 
   1003 		m_data = new char[size];
   1004 		std::memcpy(m_data, ptr, size);
   1005 	}
   1006 	else
   1007 		DE_ASSERT(false);
   1008 }
   1009 
   1010 void AttributeArray::subdata (DrawTestSpec::Target target, int offset, int size, const char* ptr)
   1011 {
   1012 	m_target = target;
   1013 
   1014 	if (m_storage == DrawTestSpec::STORAGE_BUFFER)
   1015 	{
   1016 		m_ctx.bindBuffer(targetToGL(target), m_glBuffer);
   1017 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
   1018 
   1019 		m_ctx.bufferSubData(targetToGL(target), offset, size, ptr);
   1020 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBufferSubData()");
   1021 	}
   1022 	else if (m_storage == DrawTestSpec::STORAGE_USER)
   1023 		std::memcpy(m_data + offset, ptr, size);
   1024 	else
   1025 		DE_ASSERT(false);
   1026 }
   1027 
   1028 void AttributeArray::setupArray (bool bound, int offset, int size, DrawTestSpec::InputType inputType, DrawTestSpec::OutputType outType, bool normalized, int stride, int instanceDivisor, const rr::GenericVec4& defaultAttrib, bool isPositionAttr, bool bgraComponentOrder)
   1029 {
   1030 	m_componentCount	= size;
   1031 	m_bound				= bound;
   1032 	m_inputType			= inputType;
   1033 	m_outputType		= outType;
   1034 	m_normalize			= normalized;
   1035 	m_stride			= stride;
   1036 	m_offset			= offset;
   1037 	m_defaultAttrib		= defaultAttrib;
   1038 	m_instanceDivisor	= instanceDivisor;
   1039 	m_isPositionAttr	= isPositionAttr;
   1040 	m_bgraOrder			= bgraComponentOrder;
   1041 }
   1042 
   1043 void AttributeArray::bindAttribute (deUint32 loc)
   1044 {
   1045 	if (!isBound())
   1046 	{
   1047 		switch (m_inputType)
   1048 		{
   1049 			case DrawTestSpec::INPUTTYPE_FLOAT:
   1050 			{
   1051 				tcu::Vec4 attr = m_defaultAttrib.get<float>();
   1052 
   1053 				switch (m_componentCount)
   1054 				{
   1055 					case 1: m_ctx.vertexAttrib1f(loc, attr.x()); break;
   1056 					case 2: m_ctx.vertexAttrib2f(loc, attr.x(), attr.y()); break;
   1057 					case 3: m_ctx.vertexAttrib3f(loc, attr.x(), attr.y(), attr.z()); break;
   1058 					case 4: m_ctx.vertexAttrib4f(loc, attr.x(), attr.y(), attr.z(), attr.w()); break;
   1059 					default: DE_ASSERT(DE_FALSE); break;
   1060 				}
   1061 				break;
   1062 			}
   1063 			case DrawTestSpec::INPUTTYPE_INT:
   1064 			{
   1065 				tcu::IVec4 attr = m_defaultAttrib.get<deInt32>();
   1066 				m_ctx.vertexAttribI4i(loc, attr.x(), attr.y(), attr.z(), attr.w());
   1067 				break;
   1068 			}
   1069 			case DrawTestSpec::INPUTTYPE_UNSIGNED_INT:
   1070 			{
   1071 				tcu::UVec4 attr = m_defaultAttrib.get<deUint32>();
   1072 				m_ctx.vertexAttribI4ui(loc, attr.x(), attr.y(), attr.z(), attr.w());
   1073 				break;
   1074 			}
   1075 			default:
   1076 				DE_ASSERT(DE_FALSE);
   1077 				break;
   1078 		}
   1079 	}
   1080 	else
   1081 	{
   1082 		const deUint8* basePtr = DE_NULL;
   1083 
   1084 		if (m_storage == DrawTestSpec::STORAGE_BUFFER)
   1085 		{
   1086 			m_ctx.bindBuffer(targetToGL(m_target), m_glBuffer);
   1087 			GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
   1088 
   1089 			basePtr = DE_NULL;
   1090 		}
   1091 		else if (m_storage == DrawTestSpec::STORAGE_USER)
   1092 		{
   1093 			m_ctx.bindBuffer(targetToGL(m_target), 0);
   1094 			GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glBindBuffer()");
   1095 
   1096 			basePtr = (const deUint8*)m_data;
   1097 		}
   1098 		else
   1099 			DE_ASSERT(DE_FALSE);
   1100 
   1101 		if (!inputTypeIsFloatType(m_inputType))
   1102 		{
   1103 			// Input is not float type
   1104 
   1105 			if (outputTypeIsFloatType(m_outputType))
   1106 			{
   1107 				const int size = (m_bgraOrder) ? (GL_BGRA) : (m_componentCount);
   1108 
   1109 				DE_ASSERT(!(m_bgraOrder && m_componentCount != 4));
   1110 
   1111 				// Output type is float type
   1112 				m_ctx.vertexAttribPointer(loc, size, inputTypeToGL(m_inputType), m_normalize, m_stride, basePtr + m_offset);
   1113 				GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribPointer()");
   1114 			}
   1115 			else
   1116 			{
   1117 				// Output type is int type
   1118 				m_ctx.vertexAttribIPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_stride, basePtr + m_offset);
   1119 				GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribIPointer()");
   1120 			}
   1121 		}
   1122 		else
   1123 		{
   1124 			// Input type is float type
   1125 
   1126 			// Output type must be float type
   1127 			DE_ASSERT(outputTypeIsFloatType(m_outputType));
   1128 
   1129 			m_ctx.vertexAttribPointer(loc, m_componentCount, inputTypeToGL(m_inputType), m_normalize, m_stride, basePtr + m_offset);
   1130 			GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glVertexAttribPointer()");
   1131 		}
   1132 
   1133 		if (m_instanceDivisor)
   1134 			m_ctx.vertexAttribDivisor(loc, m_instanceDivisor);
   1135 	}
   1136 }
   1137 
   1138 void AttributeArray::bindIndexArray (DrawTestSpec::Target target)
   1139 {
   1140 	if (m_storage == DrawTestSpec::STORAGE_USER)
   1141 	{
   1142 	}
   1143 	else if (m_storage == DrawTestSpec::STORAGE_BUFFER)
   1144 	{
   1145 		m_ctx.bindBuffer(targetToGL(target), m_glBuffer);
   1146 	}
   1147 }
   1148 
   1149 // DrawTestShaderProgram
   1150 
   1151 class DrawTestShaderProgram : public sglr::ShaderProgram
   1152 {
   1153 public:
   1154 												DrawTestShaderProgram		(const glu::RenderContext& ctx, const std::vector<AttributeArray*>& arrays);
   1155 
   1156 	void										shadeVertices				(const rr::VertexAttrib* inputs, rr::VertexPacket* const* packets, const int numPackets) const;
   1157 	void										shadeFragments				(rr::FragmentPacket* packets, const int numPackets, const rr::FragmentShadingContext& context) const;
   1158 
   1159 private:
   1160 	static std::string							genVertexSource				(const glu::RenderContext& ctx, const std::vector<AttributeArray*>& arrays);
   1161 	static std::string							genFragmentSource			(const glu::RenderContext& ctx);
   1162 	static void									generateShaderParams		(std::map<std::string, std::string>& params, glu::ContextType type);
   1163 	static rr::GenericVecType					mapOutputType				(const DrawTestSpec::OutputType& type);
   1164 	static int									getComponentCount			(const DrawTestSpec::OutputType& type);
   1165 
   1166 	static sglr::pdec::ShaderProgramDeclaration createProgramDeclaration	(const glu::RenderContext& ctx, const std::vector<AttributeArray*>& arrays);
   1167 
   1168 	std::vector<int>							m_componentCount;
   1169 	std::vector<bool>							m_isCoord;
   1170 	std::vector<rr::GenericVecType>				m_attrType;
   1171 };
   1172 
   1173 DrawTestShaderProgram::DrawTestShaderProgram (const glu::RenderContext& ctx, const std::vector<AttributeArray*>& arrays)
   1174 	: sglr::ShaderProgram	(createProgramDeclaration(ctx, arrays))
   1175 	, m_componentCount		(arrays.size())
   1176 	, m_isCoord				(arrays.size())
   1177 	, m_attrType			(arrays.size())
   1178 {
   1179 	for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
   1180 	{
   1181 		m_componentCount[arrayNdx]	= getComponentCount(arrays[arrayNdx]->getOutputType());
   1182 		m_isCoord[arrayNdx]			= arrays[arrayNdx]->isPositionAttribute();
   1183 		m_attrType[arrayNdx]		= mapOutputType(arrays[arrayNdx]->getOutputType());
   1184 	}
   1185 }
   1186 
   1187 template <typename T>
   1188 void calcShaderColorCoord (tcu::Vec2& coord, tcu::Vec3& color, const tcu::Vector<T, 4>& attribValue, bool isCoordinate, int numComponents)
   1189 {
   1190 	if (isCoordinate)
   1191 		switch (numComponents)
   1192 		{
   1193 			case 1:	coord += tcu::Vec2((float)attribValue.x(),						(float)attribValue.x());					break;
   1194 			case 2:	coord += tcu::Vec2((float)attribValue.x(),						(float)attribValue.y());					break;
   1195 			case 3:	coord += tcu::Vec2((float)attribValue.x() + attribValue.z(),	(float)attribValue.y());					break;
   1196 			case 4:	coord += tcu::Vec2((float)attribValue.x() + attribValue.z(),	(float)attribValue.y() + attribValue.w());	break;
   1197 
   1198 			default:
   1199 				DE_ASSERT(false);
   1200 		}
   1201 	else
   1202 	{
   1203 		switch (numComponents)
   1204 		{
   1205 			case 1:
   1206 				color = color * (float)attribValue.x();
   1207 				break;
   1208 
   1209 			case 2:
   1210 				color.x() = color.x() * attribValue.x();
   1211 				color.y() = color.y() * attribValue.y();
   1212 				break;
   1213 
   1214 			case 3:
   1215 				color.x() = color.x() * attribValue.x();
   1216 				color.y() = color.y() * attribValue.y();
   1217 				color.z() = color.z() * attribValue.z();
   1218 				break;
   1219 
   1220 			case 4:
   1221 				color.x() = color.x() * attribValue.x() * attribValue.w();
   1222 				color.y() = color.y() * attribValue.y() * attribValue.w();
   1223 				color.z() = color.z() * attribValue.z() * attribValue.w();
   1224 				break;
   1225 
   1226 			default:
   1227 				DE_ASSERT(false);
   1228 		}
   1229 	}
   1230 }
   1231 
   1232 void DrawTestShaderProgram::shadeVertices (const rr::VertexAttrib* inputs, rr::VertexPacket* const* packets, const int numPackets) const
   1233 {
   1234 	const float	u_coordScale = getUniformByName("u_coordScale").value.f;
   1235 	const float u_colorScale = getUniformByName("u_colorScale").value.f;
   1236 
   1237 	for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx)
   1238 	{
   1239 		const size_t varyingLocColor = 0;
   1240 
   1241 		rr::VertexPacket& packet = *packets[packetNdx];
   1242 
   1243 		// Calc output color
   1244 		tcu::Vec2 coord = tcu::Vec2(0.0, 0.0);
   1245 		tcu::Vec3 color = tcu::Vec3(1.0, 1.0, 1.0);
   1246 
   1247 		for (int attribNdx = 0; attribNdx < (int)m_attrType.size(); attribNdx++)
   1248 		{
   1249 			const int	numComponents	= m_componentCount[attribNdx];
   1250 			const bool	isCoord			= m_isCoord[attribNdx];
   1251 
   1252 			switch (m_attrType[attribNdx])
   1253 			{
   1254 				case rr::GENERICVECTYPE_FLOAT:	calcShaderColorCoord(coord, color, rr::readVertexAttribFloat(inputs[attribNdx], packet.instanceNdx, packet.vertexNdx), isCoord, numComponents);	break;
   1255 				case rr::GENERICVECTYPE_INT32:	calcShaderColorCoord(coord, color, rr::readVertexAttribInt	(inputs[attribNdx], packet.instanceNdx, packet.vertexNdx), isCoord, numComponents);	break;
   1256 				case rr::GENERICVECTYPE_UINT32:	calcShaderColorCoord(coord, color, rr::readVertexAttribUint	(inputs[attribNdx], packet.instanceNdx, packet.vertexNdx), isCoord, numComponents);	break;
   1257 				default:
   1258 					DE_ASSERT(false);
   1259 			}
   1260 		}
   1261 
   1262 		// Transform position
   1263 		{
   1264 			packet.position = tcu::Vec4(u_coordScale * coord.x(), u_coordScale * coord.y(), 1.0f, 1.0f);
   1265 			packet.pointSize = 1.0f;
   1266 		}
   1267 
   1268 		// Pass color to FS
   1269 		{
   1270 			packet.outputs[varyingLocColor] = tcu::Vec4(u_colorScale * color.x(), u_colorScale * color.y(), u_colorScale * color.z(), 1.0f) * 0.5f + tcu::Vec4(0.5f, 0.5f, 0.5f, 0.5f);
   1271 		}
   1272 	}
   1273 }
   1274 
   1275 void DrawTestShaderProgram::shadeFragments (rr::FragmentPacket* packets, const int numPackets, const rr::FragmentShadingContext& context) const
   1276 {
   1277 	const size_t varyingLocColor = 0;
   1278 
   1279 	for (int packetNdx = 0; packetNdx < numPackets; ++packetNdx)
   1280 	{
   1281 		rr::FragmentPacket& packet = packets[packetNdx];
   1282 
   1283 		for (int fragNdx = 0; fragNdx < 4; ++fragNdx)
   1284 			rr::writeFragmentOutput(context, packetNdx, fragNdx, 0, rr::readVarying<float>(packet, context, varyingLocColor, fragNdx));
   1285 	}
   1286 }
   1287 
   1288 std::string DrawTestShaderProgram::genVertexSource (const glu::RenderContext& ctx, const std::vector<AttributeArray*>& arrays)
   1289 {
   1290 	std::map<std::string, std::string>	params;
   1291 	std::stringstream					vertexShaderTmpl;
   1292 
   1293 	generateShaderParams(params, ctx.getType());
   1294 
   1295 	vertexShaderTmpl << "${VTX_HDR}";
   1296 
   1297 	for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
   1298 	{
   1299 		vertexShaderTmpl
   1300 			<< "${VTX_IN} highp " << outputTypeToGLType(arrays[arrayNdx]->getOutputType()) << " a_" << arrayNdx << ";\n";
   1301 	}
   1302 
   1303 	vertexShaderTmpl <<
   1304 		"uniform highp float u_coordScale;\n"
   1305 		"uniform highp float u_colorScale;\n"
   1306 		"${VTX_OUT} ${COL_PRECISION} vec4 v_color;\n"
   1307 		"void main(void)\n"
   1308 		"{\n"
   1309 		"\tgl_PointSize = 1.0;\n"
   1310 		"\thighp vec2 coord = vec2(0.0, 0.0);\n"
   1311 		"\thighp vec3 color = vec3(1.0, 1.0, 1.0);\n";
   1312 
   1313 	for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
   1314 	{
   1315 		const bool isPositionAttr = arrays[arrayNdx]->isPositionAttribute();
   1316 
   1317 		if (isPositionAttr)
   1318 		{
   1319 			switch (arrays[arrayNdx]->getOutputType())
   1320 			{
   1321 				case (DrawTestSpec::OUTPUTTYPE_FLOAT):
   1322 				case (DrawTestSpec::OUTPUTTYPE_INT):
   1323 				case (DrawTestSpec::OUTPUTTYPE_UINT):
   1324 					vertexShaderTmpl <<
   1325 						"\tcoord += vec2(float(a_" << arrayNdx << "), float(a_" << arrayNdx << "));\n";
   1326 					break;
   1327 
   1328 				case (DrawTestSpec::OUTPUTTYPE_VEC2):
   1329 				case (DrawTestSpec::OUTPUTTYPE_IVEC2):
   1330 				case (DrawTestSpec::OUTPUTTYPE_UVEC2):
   1331 					vertexShaderTmpl <<
   1332 						"\tcoord += vec2(a_" << arrayNdx << ".xy);\n";
   1333 					break;
   1334 
   1335 				case (DrawTestSpec::OUTPUTTYPE_VEC3):
   1336 				case (DrawTestSpec::OUTPUTTYPE_IVEC3):
   1337 				case (DrawTestSpec::OUTPUTTYPE_UVEC3):
   1338 					vertexShaderTmpl <<
   1339 						"\tcoord += vec2(a_" << arrayNdx << ".xy);\n"
   1340 						"\tcoord.x += float(a_" << arrayNdx << ".z);\n";
   1341 					break;
   1342 
   1343 				case (DrawTestSpec::OUTPUTTYPE_VEC4):
   1344 				case (DrawTestSpec::OUTPUTTYPE_IVEC4):
   1345 				case (DrawTestSpec::OUTPUTTYPE_UVEC4):
   1346 					vertexShaderTmpl <<
   1347 						"\tcoord += vec2(a_" << arrayNdx << ".xy);\n"
   1348 						"\tcoord += vec2(a_" << arrayNdx << ".zw);\n";
   1349 					break;
   1350 
   1351 				default:
   1352 					DE_ASSERT(false);
   1353 					break;
   1354 			}
   1355 		}
   1356 		else
   1357 		{
   1358 			switch (arrays[arrayNdx]->getOutputType())
   1359 			{
   1360 				case (DrawTestSpec::OUTPUTTYPE_FLOAT):
   1361 				case (DrawTestSpec::OUTPUTTYPE_INT):
   1362 				case (DrawTestSpec::OUTPUTTYPE_UINT):
   1363 					vertexShaderTmpl <<
   1364 						"\tcolor = color * float(a_" << arrayNdx << ");\n";
   1365 					break;
   1366 
   1367 				case (DrawTestSpec::OUTPUTTYPE_VEC2):
   1368 				case (DrawTestSpec::OUTPUTTYPE_IVEC2):
   1369 				case (DrawTestSpec::OUTPUTTYPE_UVEC2):
   1370 					vertexShaderTmpl <<
   1371 						"\tcolor.rg = color.rg * vec2(a_" << arrayNdx << ".xy);\n";
   1372 					break;
   1373 
   1374 				case (DrawTestSpec::OUTPUTTYPE_VEC3):
   1375 				case (DrawTestSpec::OUTPUTTYPE_IVEC3):
   1376 				case (DrawTestSpec::OUTPUTTYPE_UVEC3):
   1377 					vertexShaderTmpl <<
   1378 						"\tcolor = color.rgb * vec3(a_" << arrayNdx << ".xyz);\n";
   1379 					break;
   1380 
   1381 				case (DrawTestSpec::OUTPUTTYPE_VEC4):
   1382 				case (DrawTestSpec::OUTPUTTYPE_IVEC4):
   1383 				case (DrawTestSpec::OUTPUTTYPE_UVEC4):
   1384 					vertexShaderTmpl <<
   1385 						"\tcolor = color.rgb * vec3(a_" << arrayNdx << ".xyz) * float(a_" << arrayNdx << ".w);\n";
   1386 					break;
   1387 
   1388 				default:
   1389 					DE_ASSERT(false);
   1390 					break;
   1391 			}
   1392 		}
   1393 	}
   1394 
   1395 	vertexShaderTmpl <<
   1396 		"\tv_color = vec4(u_colorScale * color, 1.0) * 0.5 + vec4(0.5, 0.5, 0.5, 0.5);\n"
   1397 		"\tgl_Position = vec4(u_coordScale * coord, 1.0, 1.0);\n"
   1398 		"}\n";
   1399 
   1400 	return tcu::StringTemplate(vertexShaderTmpl.str().c_str()).specialize(params);
   1401 }
   1402 
   1403 std::string DrawTestShaderProgram::genFragmentSource (const glu::RenderContext& ctx)
   1404 {
   1405 	std::map<std::string, std::string> params;
   1406 
   1407 	generateShaderParams(params, ctx.getType());
   1408 
   1409 	static const char* fragmentShaderTmpl =
   1410 		"${FRAG_HDR}"
   1411 		"${FRAG_IN} ${COL_PRECISION} vec4 v_color;\n"
   1412 		"void main(void)\n"
   1413 		"{\n"
   1414 		"\t${FRAG_COLOR} = v_color;\n"
   1415 		"}\n";
   1416 
   1417 	return tcu::StringTemplate(fragmentShaderTmpl).specialize(params);
   1418 }
   1419 
   1420 void DrawTestShaderProgram::generateShaderParams (std::map<std::string, std::string>& params, glu::ContextType type)
   1421 {
   1422 	if (glu::isGLSLVersionSupported(type, glu::GLSL_VERSION_300_ES))
   1423 	{
   1424 		params["VTX_IN"]		= "in";
   1425 		params["VTX_OUT"]		= "out";
   1426 		params["FRAG_IN"]		= "in";
   1427 		params["FRAG_COLOR"]	= "dEQP_FragColor";
   1428 		params["VTX_HDR"]		= "#version 300 es\n";
   1429 		params["FRAG_HDR"]		= "#version 300 es\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
   1430 		params["COL_PRECISION"]	= "mediump";
   1431 	}
   1432 	else if (glu::isGLSLVersionSupported(type, glu::GLSL_VERSION_100_ES))
   1433 	{
   1434 		params["VTX_IN"]		= "attribute";
   1435 		params["VTX_OUT"]		= "varying";
   1436 		params["FRAG_IN"]		= "varying";
   1437 		params["FRAG_COLOR"]	= "gl_FragColor";
   1438 		params["VTX_HDR"]		= "";
   1439 		params["FRAG_HDR"]		= "";
   1440 		params["COL_PRECISION"]	= "mediump";
   1441 	}
   1442 	else if (glu::isGLSLVersionSupported(type, glu::GLSL_VERSION_430))
   1443 	{
   1444 		params["VTX_IN"]		= "in";
   1445 		params["VTX_OUT"]		= "out";
   1446 		params["FRAG_IN"]		= "in";
   1447 		params["FRAG_COLOR"]	= "dEQP_FragColor";
   1448 		params["VTX_HDR"]		= "#version 430\n";
   1449 		params["FRAG_HDR"]		= "#version 430\nlayout(location = 0) out highp vec4 dEQP_FragColor;\n";
   1450 		params["COL_PRECISION"]	= "highp";
   1451 	}
   1452 	else if (glu::isGLSLVersionSupported(type, glu::GLSL_VERSION_330))
   1453 	{
   1454 		params["VTX_IN"]		= "in";
   1455 		params["VTX_OUT"]		= "out";
   1456 		params["FRAG_IN"]		= "in";
   1457 		params["FRAG_COLOR"]	= "dEQP_FragColor";
   1458 		params["VTX_HDR"]		= "#version 330\n";
   1459 		params["FRAG_HDR"]		= "#version 330\nlayout(location = 0) out mediump vec4 dEQP_FragColor;\n";
   1460 		params["COL_PRECISION"]	= "mediump";
   1461 	}
   1462 	else
   1463 		DE_ASSERT(DE_FALSE);
   1464 }
   1465 
   1466 rr::GenericVecType DrawTestShaderProgram::mapOutputType (const DrawTestSpec::OutputType& type)
   1467 {
   1468 	switch (type)
   1469 	{
   1470 		case (DrawTestSpec::OUTPUTTYPE_FLOAT):
   1471 		case (DrawTestSpec::OUTPUTTYPE_VEC2):
   1472 		case (DrawTestSpec::OUTPUTTYPE_VEC3):
   1473 		case (DrawTestSpec::OUTPUTTYPE_VEC4):
   1474 			return rr::GENERICVECTYPE_FLOAT;
   1475 
   1476 		case (DrawTestSpec::OUTPUTTYPE_INT):
   1477 		case (DrawTestSpec::OUTPUTTYPE_IVEC2):
   1478 		case (DrawTestSpec::OUTPUTTYPE_IVEC3):
   1479 		case (DrawTestSpec::OUTPUTTYPE_IVEC4):
   1480 			return rr::GENERICVECTYPE_INT32;
   1481 
   1482 		case (DrawTestSpec::OUTPUTTYPE_UINT):
   1483 		case (DrawTestSpec::OUTPUTTYPE_UVEC2):
   1484 		case (DrawTestSpec::OUTPUTTYPE_UVEC3):
   1485 		case (DrawTestSpec::OUTPUTTYPE_UVEC4):
   1486 			return rr::GENERICVECTYPE_UINT32;
   1487 
   1488 		default:
   1489 			DE_ASSERT(false);
   1490 			return rr::GENERICVECTYPE_LAST;
   1491 	}
   1492 }
   1493 
   1494 int DrawTestShaderProgram::getComponentCount (const DrawTestSpec::OutputType& type)
   1495 {
   1496 	switch (type)
   1497 	{
   1498 		case (DrawTestSpec::OUTPUTTYPE_FLOAT):
   1499 		case (DrawTestSpec::OUTPUTTYPE_INT):
   1500 		case (DrawTestSpec::OUTPUTTYPE_UINT):
   1501 			return 1;
   1502 
   1503 		case (DrawTestSpec::OUTPUTTYPE_VEC2):
   1504 		case (DrawTestSpec::OUTPUTTYPE_IVEC2):
   1505 		case (DrawTestSpec::OUTPUTTYPE_UVEC2):
   1506 			return 2;
   1507 
   1508 		case (DrawTestSpec::OUTPUTTYPE_VEC3):
   1509 		case (DrawTestSpec::OUTPUTTYPE_IVEC3):
   1510 		case (DrawTestSpec::OUTPUTTYPE_UVEC3):
   1511 			return 3;
   1512 
   1513 		case (DrawTestSpec::OUTPUTTYPE_VEC4):
   1514 		case (DrawTestSpec::OUTPUTTYPE_IVEC4):
   1515 		case (DrawTestSpec::OUTPUTTYPE_UVEC4):
   1516 			return 4;
   1517 
   1518 		default:
   1519 			DE_ASSERT(false);
   1520 			return 0;
   1521 	}
   1522 }
   1523 
   1524 sglr::pdec::ShaderProgramDeclaration DrawTestShaderProgram::createProgramDeclaration (const glu::RenderContext& ctx, const std::vector<AttributeArray*>& arrays)
   1525 {
   1526 	sglr::pdec::ShaderProgramDeclaration decl;
   1527 
   1528 	for (int arrayNdx = 0; arrayNdx < (int)arrays.size(); arrayNdx++)
   1529 		decl << sglr::pdec::VertexAttribute(std::string("a_") + de::toString(arrayNdx), mapOutputType(arrays[arrayNdx]->getOutputType()));
   1530 
   1531 	decl << sglr::pdec::VertexToFragmentVarying(rr::GENERICVECTYPE_FLOAT);
   1532 	decl << sglr::pdec::FragmentOutput(rr::GENERICVECTYPE_FLOAT);
   1533 
   1534 	decl << sglr::pdec::VertexSource(genVertexSource(ctx, arrays));
   1535 	decl << sglr::pdec::FragmentSource(genFragmentSource(ctx));
   1536 
   1537 	decl << sglr::pdec::Uniform("u_coordScale", glu::TYPE_FLOAT);
   1538 	decl << sglr::pdec::Uniform("u_colorScale", glu::TYPE_FLOAT);
   1539 
   1540 	return decl;
   1541 }
   1542 
   1543 class RandomArrayGenerator
   1544 {
   1545 public:
   1546 	static char*			generateArray			(int seed, int elementCount, int componentCount, int offset, int stride, DrawTestSpec::InputType type);
   1547 	static char*			generateIndices			(int seed, int elementCount, DrawTestSpec::IndexType type, int offset, int min, int max, int indexBase);
   1548 	static rr::GenericVec4	generateAttributeValue	(int seed, DrawTestSpec::InputType type);
   1549 
   1550 private:
   1551 	template<typename T>
   1552 	static char*			createIndices			(int seed, int elementCount, int offset, int min, int max, int indexBase);
   1553 	static void				setData					(char* data, DrawTestSpec::InputType type, deRandom& rnd, GLValue min, GLValue max);
   1554 
   1555 	static char*			generateBasicArray		(int seed, int elementCount, int componentCount, int offset, int stride, DrawTestSpec::InputType type);
   1556 	template<typename T, typename GLType>
   1557 	static char*			createBasicArray		(int seed, int elementCount, int componentCount, int offset, int stride);
   1558 	static char*			generatePackedArray		(int seed, int elementCount, int componentCount, int offset, int stride);
   1559 };
   1560 
   1561 void RandomArrayGenerator::setData (char* data, DrawTestSpec::InputType type, deRandom& rnd, GLValue min, GLValue max)
   1562 {
   1563 	switch (type)
   1564 	{
   1565 		case DrawTestSpec::INPUTTYPE_FLOAT:
   1566 		{
   1567 			alignmentSafeAssignment<float>(data, getRandom<GLValue::Float>(rnd, min.fl, max.fl));
   1568 			break;
   1569 		}
   1570 
   1571 		case DrawTestSpec::INPUTTYPE_SHORT:
   1572 		{
   1573 			alignmentSafeAssignment<deInt16>(data, getRandom<GLValue::Short>(rnd, min.s, max.s));
   1574 			break;
   1575 		}
   1576 
   1577 		case DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT:
   1578 		{
   1579 			alignmentSafeAssignment<deUint16>(data, getRandom<GLValue::Ushort>(rnd, min.us, max.us));
   1580 			break;
   1581 		}
   1582 
   1583 		case DrawTestSpec::INPUTTYPE_BYTE:
   1584 		{
   1585 			alignmentSafeAssignment<deInt8>(data, getRandom<GLValue::Byte>(rnd, min.b, max.b));
   1586 			break;
   1587 		}
   1588 
   1589 		case DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE:
   1590 		{
   1591 			alignmentSafeAssignment<deUint8>(data, getRandom<GLValue::Ubyte>(rnd, min.ub, max.ub));
   1592 			break;
   1593 		}
   1594 
   1595 		case DrawTestSpec::INPUTTYPE_FIXED:
   1596 		{
   1597 			alignmentSafeAssignment<deInt32>(data, getRandom<GLValue::Fixed>(rnd, min.fi, max.fi));
   1598 			break;
   1599 		}
   1600 
   1601 		case DrawTestSpec::INPUTTYPE_INT:
   1602 		{
   1603 			alignmentSafeAssignment<deInt32>(data, getRandom<GLValue::Int>(rnd, min.i, max.i));
   1604 			break;
   1605 		}
   1606 
   1607 		case DrawTestSpec::INPUTTYPE_UNSIGNED_INT:
   1608 		{
   1609 			alignmentSafeAssignment<deUint32>(data, getRandom<GLValue::Uint>(rnd, min.ui, max.ui));
   1610 			break;
   1611 		}
   1612 
   1613 		case DrawTestSpec::INPUTTYPE_HALF:
   1614 		{
   1615 			alignmentSafeAssignment<deFloat16>(data, getRandom<GLValue::Half>(rnd, min.h, max.h).getValue());
   1616 			break;
   1617 		}
   1618 
   1619 		default:
   1620 			DE_ASSERT(false);
   1621 			break;
   1622 	}
   1623 }
   1624 
   1625 char* RandomArrayGenerator::generateArray (int seed, int elementCount, int componentCount, int offset, int stride, DrawTestSpec::InputType type)
   1626 {
   1627 	if (type == DrawTestSpec::INPUTTYPE_INT_2_10_10_10 || type == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10)
   1628 		return generatePackedArray(seed, elementCount, componentCount, offset, stride);
   1629 	else
   1630 		return generateBasicArray(seed, elementCount, componentCount, offset, stride, type);
   1631 }
   1632 
   1633 char* RandomArrayGenerator::generateBasicArray (int seed, int elementCount, int componentCount, int offset, int stride, DrawTestSpec::InputType type)
   1634 {
   1635 	switch (type)
   1636 	{
   1637 		case DrawTestSpec::INPUTTYPE_FLOAT:				return createBasicArray<float,		GLValue::Float>	(seed, elementCount, componentCount, offset, stride);
   1638 		case DrawTestSpec::INPUTTYPE_DOUBLE:			return createBasicArray<double,		GLValue::Double>(seed, elementCount, componentCount, offset, stride);
   1639 		case DrawTestSpec::INPUTTYPE_SHORT:				return createBasicArray<deInt16,	GLValue::Short>	(seed, elementCount, componentCount, offset, stride);
   1640 		case DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT:	return createBasicArray<deUint16,	GLValue::Ushort>(seed, elementCount, componentCount, offset, stride);
   1641 		case DrawTestSpec::INPUTTYPE_BYTE:				return createBasicArray<deInt8,		GLValue::Byte>	(seed, elementCount, componentCount, offset, stride);
   1642 		case DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE:		return createBasicArray<deUint8,	GLValue::Ubyte>	(seed, elementCount, componentCount, offset, stride);
   1643 		case DrawTestSpec::INPUTTYPE_FIXED:				return createBasicArray<deInt32,	GLValue::Fixed>	(seed, elementCount, componentCount, offset, stride);
   1644 		case DrawTestSpec::INPUTTYPE_INT:				return createBasicArray<deInt32,	GLValue::Int>	(seed, elementCount, componentCount, offset, stride);
   1645 		case DrawTestSpec::INPUTTYPE_UNSIGNED_INT:		return createBasicArray<deUint32,	GLValue::Uint>	(seed, elementCount, componentCount, offset, stride);
   1646 		case DrawTestSpec::INPUTTYPE_HALF:				return createBasicArray<deFloat16,	GLValue::Half>	(seed, elementCount, componentCount, offset, stride);
   1647 		default:
   1648 			DE_ASSERT(false);
   1649 			break;
   1650 	}
   1651 	return DE_NULL;
   1652 }
   1653 
   1654 #if (DE_COMPILER == DE_COMPILER_GCC) && (__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)
   1655 	// GCC 4.8/4.9 incorrectly emits array-bounds warning from createBasicArray()
   1656 #	define GCC_ARRAY_BOUNDS_FALSE_NEGATIVE 1
   1657 #endif
   1658 
   1659 #if defined(GCC_ARRAY_BOUNDS_FALSE_NEGATIVE)
   1660 #	pragma GCC diagnostic push
   1661 #	pragma GCC diagnostic ignored "-Warray-bounds"
   1662 #endif
   1663 
   1664 template<typename T, typename GLType>
   1665 char* RandomArrayGenerator::createBasicArray (int seed, int elementCount, int componentCount, int offset, int stride)
   1666 {
   1667 	DE_ASSERT(componentCount >= 1 && componentCount <= 4);
   1668 
   1669 	const GLType min = extractGLValue<GLType>(GLValue::getMinValue(GLValueTypeTraits<GLType>::Type));
   1670 	const GLType max = extractGLValue<GLType>(GLValue::getMaxValue(GLValueTypeTraits<GLType>::Type));
   1671 
   1672 	const size_t componentSize	= sizeof(T);
   1673 	const size_t elementSize	= componentSize * componentCount;
   1674 	const size_t bufferSize		= offset + (elementCount - 1) * stride + elementSize;
   1675 
   1676 	char* data = new char[bufferSize];
   1677 	char* writePtr = data + offset;
   1678 
   1679 	GLType previousComponents[4];
   1680 
   1681 	deRandom rnd;
   1682 	deRandom_init(&rnd, seed);
   1683 
   1684 	for (int vertexNdx = 0; vertexNdx < elementCount; vertexNdx++)
   1685 	{
   1686 		GLType components[4];
   1687 
   1688 		for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
   1689 		{
   1690 			components[componentNdx] = getRandom<GLType>(rnd, min, max);
   1691 
   1692 			// Try to not create vertex near previous
   1693 			if (vertexNdx != 0 && abs(components[componentNdx] - previousComponents[componentNdx]) < minValue<GLType>())
   1694 			{
   1695 				// Too close, try again (but only once)
   1696 				components[componentNdx] = getRandom<GLType>(rnd, min, max);
   1697 			}
   1698 		}
   1699 
   1700 		for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
   1701 			previousComponents[componentNdx] = components[componentNdx];
   1702 
   1703 		for (int componentNdx = 0; componentNdx < componentCount; componentNdx++)
   1704 			alignmentSafeAssignment(writePtr + componentNdx*componentSize, components[componentNdx].getValue());
   1705 
   1706 		writePtr += stride;
   1707 	}
   1708 
   1709 	return data;
   1710 }
   1711 
   1712 #if defined(GCC_ARRAY_BOUNDS_FALSE_NEGATIVE)
   1713 #	pragma GCC diagnostic pop
   1714 #endif
   1715 
   1716 char* RandomArrayGenerator::generatePackedArray (int seed, int elementCount, int componentCount, int offset, int stride)
   1717 {
   1718 	DE_ASSERT(componentCount == 4);
   1719 	DE_UNREF(componentCount);
   1720 
   1721 	const deUint32 limit10		= (1 << 10);
   1722 	const deUint32 limit2		= (1 << 2);
   1723 	const size_t elementSize	= 4;
   1724 	const size_t bufferSize		= offset + (elementCount - 1) * stride + elementSize;
   1725 
   1726 	char* data = new char[bufferSize];
   1727 	char* writePtr = data + offset;
   1728 
   1729 	deRandom rnd;
   1730 	deRandom_init(&rnd, seed);
   1731 
   1732 	for (int vertexNdx = 0; vertexNdx < elementCount; vertexNdx++)
   1733 	{
   1734 		const deUint32 x			= deRandom_getUint32(&rnd) % limit10;
   1735 		const deUint32 y			= deRandom_getUint32(&rnd) % limit10;
   1736 		const deUint32 z			= deRandom_getUint32(&rnd) % limit10;
   1737 		const deUint32 w			= deRandom_getUint32(&rnd) % limit2;
   1738 		const deUint32 packedValue	= (w << 30) | (z << 20) | (y << 10) | (x);
   1739 
   1740 		alignmentSafeAssignment(writePtr, packedValue);
   1741 		writePtr += stride;
   1742 	}
   1743 
   1744 	return data;
   1745 }
   1746 
   1747 char* RandomArrayGenerator::generateIndices (int seed, int elementCount, DrawTestSpec::IndexType type, int offset, int min, int max, int indexBase)
   1748 {
   1749 	char* data = DE_NULL;
   1750 
   1751 	switch (type)
   1752 	{
   1753 		case DrawTestSpec::INDEXTYPE_BYTE:
   1754 			data = createIndices<deUint8>(seed, elementCount, offset, min, max, indexBase);
   1755 			break;
   1756 
   1757 		case DrawTestSpec::INDEXTYPE_SHORT:
   1758 			data = createIndices<deUint16>(seed, elementCount, offset, min, max, indexBase);
   1759 			break;
   1760 
   1761 		case DrawTestSpec::INDEXTYPE_INT:
   1762 			data = createIndices<deUint32>(seed, elementCount, offset, min, max, indexBase);
   1763 			break;
   1764 
   1765 		default:
   1766 			DE_ASSERT(false);
   1767 			break;
   1768 	}
   1769 
   1770 	return data;
   1771 }
   1772 
   1773 template<typename T>
   1774 char* RandomArrayGenerator::createIndices (int seed, int elementCount, int offset, int min, int max, int indexBase)
   1775 {
   1776 	const size_t elementSize	= sizeof(T);
   1777 	const size_t bufferSize		= offset + elementCount * elementSize;
   1778 
   1779 	char* data = new char[bufferSize];
   1780 	char* writePtr = data + offset;
   1781 
   1782 	deUint32 oldNdx1 = deUint32(-1);
   1783 	deUint32 oldNdx2 = deUint32(-1);
   1784 
   1785 	deRandom rnd;
   1786 	deRandom_init(&rnd, seed);
   1787 
   1788 	DE_ASSERT(indexBase >= 0); // watch for underflows
   1789 
   1790 	if (min < 0 || (size_t)min > std::numeric_limits<T>::max() ||
   1791 		max < 0 || (size_t)max > std::numeric_limits<T>::max() ||
   1792 		min > max)
   1793 		DE_ASSERT(!"Invalid range");
   1794 
   1795 	for (int elementNdx = 0; elementNdx < elementCount; ++elementNdx)
   1796 	{
   1797 		deUint32 ndx = getRandom(rnd, GLValue::Uint::create(min), GLValue::Uint::create(max)).getValue();
   1798 
   1799 		// Try not to generate same index as any of previous two. This prevents
   1800 		// generation of degenerate triangles and lines. If [min, max] is too
   1801 		// small this cannot be guaranteed.
   1802 
   1803 		if (ndx == oldNdx1)			++ndx;
   1804 		if (ndx > (deUint32)max)	ndx = min;
   1805 		if (ndx == oldNdx2)			++ndx;
   1806 		if (ndx > (deUint32)max)	ndx = min;
   1807 		if (ndx == oldNdx1)			++ndx;
   1808 		if (ndx > (deUint32)max)	ndx = min;
   1809 
   1810 		oldNdx2 = oldNdx1;
   1811 		oldNdx1 = ndx;
   1812 
   1813 		ndx += indexBase;
   1814 
   1815 		alignmentSafeAssignment<T>(writePtr + elementSize * elementNdx, T(ndx));
   1816 	}
   1817 
   1818 	return data;
   1819 }
   1820 
   1821 rr::GenericVec4	RandomArrayGenerator::generateAttributeValue (int seed, DrawTestSpec::InputType type)
   1822 {
   1823 	de::Random random(seed);
   1824 
   1825 	switch (type)
   1826 	{
   1827 		case DrawTestSpec::INPUTTYPE_FLOAT:
   1828 			return rr::GenericVec4(generateRandomVec4(random));
   1829 
   1830 		case DrawTestSpec::INPUTTYPE_INT:
   1831 			return rr::GenericVec4(generateRandomIVec4(random));
   1832 
   1833 		case DrawTestSpec::INPUTTYPE_UNSIGNED_INT:
   1834 			return rr::GenericVec4(generateRandomUVec4(random));
   1835 
   1836 		default:
   1837 			DE_ASSERT(false);
   1838 			return rr::GenericVec4(tcu::Vec4(1, 1, 1, 1));
   1839 	}
   1840 }
   1841 
   1842 } // anonymous
   1843 
   1844 // AttributePack
   1845 
   1846 class AttributePack
   1847 {
   1848 public:
   1849 
   1850 								AttributePack		(tcu::TestContext& testCtx, glu::RenderContext& renderCtx, sglr::Context& drawContext, const tcu::UVec2& screenSize, bool useVao, bool logEnabled);
   1851 								~AttributePack		(void);
   1852 
   1853 	AttributeArray*				getArray			(int i);
   1854 	int							getArrayCount		(void);
   1855 
   1856 	void						newArray			(DrawTestSpec::Storage storage);
   1857 	void						clearArrays			(void);
   1858 	void 						updateProgram		(void);
   1859 
   1860 	void						render 				(DrawTestSpec::Primitive primitive, DrawTestSpec::DrawMethod drawMethod, int firstVertex, int vertexCount, DrawTestSpec::IndexType indexType, const void* indexOffset, int rangeStart, int rangeEnd, int instanceCount, int indirectOffset, int baseVertex, float coordScale, float colorScale, AttributeArray* indexArray);
   1861 
   1862 	const tcu::Surface&			getSurface			(void) const { return m_screen; }
   1863 private:
   1864 	tcu::TestContext&			m_testCtx;
   1865 	glu::RenderContext&			m_renderCtx;
   1866 	sglr::Context&				m_ctx;
   1867 
   1868 	std::vector<AttributeArray*>m_arrays;
   1869 	sglr::ShaderProgram*		m_program;
   1870 	tcu::Surface				m_screen;
   1871 	const bool					m_useVao;
   1872 	const bool					m_logEnabled;
   1873 	deUint32					m_programID;
   1874 	deUint32					m_vaoID;
   1875 };
   1876 
   1877 AttributePack::AttributePack (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, sglr::Context& drawContext, const tcu::UVec2& screenSize, bool useVao, bool logEnabled)
   1878 	: m_testCtx		(testCtx)
   1879 	, m_renderCtx	(renderCtx)
   1880 	, m_ctx			(drawContext)
   1881 	, m_program		(DE_NULL)
   1882 	, m_screen		(screenSize.x(), screenSize.y())
   1883 	, m_useVao		(useVao)
   1884 	, m_logEnabled	(logEnabled)
   1885 	, m_programID	(0)
   1886 	, m_vaoID		(0)
   1887 {
   1888 	if (m_useVao)
   1889 		m_ctx.genVertexArrays(1, &m_vaoID);
   1890 }
   1891 
   1892 AttributePack::~AttributePack (void)
   1893 {
   1894 	clearArrays();
   1895 
   1896 	if (m_programID)
   1897 		m_ctx.deleteProgram(m_programID);
   1898 
   1899 	if (m_program)
   1900 		delete m_program;
   1901 
   1902 	if (m_useVao)
   1903 		m_ctx.deleteVertexArrays(1, &m_vaoID);
   1904 }
   1905 
   1906 AttributeArray* AttributePack::getArray (int i)
   1907 {
   1908 	return m_arrays.at(i);
   1909 }
   1910 
   1911 int AttributePack::getArrayCount (void)
   1912 {
   1913 	return (int)m_arrays.size();
   1914 }
   1915 
   1916 void AttributePack::newArray (DrawTestSpec::Storage storage)
   1917 {
   1918 	m_arrays.push_back(new AttributeArray(storage, m_ctx));
   1919 }
   1920 
   1921 void AttributePack::clearArrays (void)
   1922 {
   1923 	for (std::vector<AttributeArray*>::iterator itr = m_arrays.begin(); itr != m_arrays.end(); itr++)
   1924 		delete *itr;
   1925 	m_arrays.clear();
   1926 }
   1927 
   1928 void AttributePack::updateProgram (void)
   1929 {
   1930 	if (m_programID)
   1931 		m_ctx.deleteProgram(m_programID);
   1932 	if (m_program)
   1933 		delete m_program;
   1934 
   1935 	m_program = new DrawTestShaderProgram(m_renderCtx, m_arrays);
   1936 	m_programID = m_ctx.createProgram(m_program);
   1937 }
   1938 
   1939 void AttributePack::render (DrawTestSpec::Primitive primitive, DrawTestSpec::DrawMethod drawMethod, int firstVertex, int vertexCount, DrawTestSpec::IndexType indexType, const void* indexOffset, int rangeStart, int rangeEnd, int instanceCount, int indirectOffset, int baseVertex, float coordScale, float colorScale, AttributeArray* indexArray)
   1940 {
   1941 	DE_ASSERT(m_program != DE_NULL);
   1942 	DE_ASSERT(m_programID != 0);
   1943 
   1944 	m_ctx.viewport(0, 0, m_screen.getWidth(), m_screen.getHeight());
   1945 	m_ctx.clearColor(0.0, 0.0, 0.0, 1.0);
   1946 	m_ctx.clear(GL_COLOR_BUFFER_BIT);
   1947 
   1948 	m_ctx.useProgram(m_programID);
   1949 	GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glUseProgram()");
   1950 
   1951 	m_ctx.uniform1f(m_ctx.getUniformLocation(m_programID, "u_coordScale"), coordScale);
   1952 	m_ctx.uniform1f(m_ctx.getUniformLocation(m_programID, "u_colorScale"), colorScale);
   1953 
   1954 	if (m_useVao)
   1955 		m_ctx.bindVertexArray(m_vaoID);
   1956 
   1957 	if (indexArray)
   1958 		indexArray->bindIndexArray(DrawTestSpec::TARGET_ELEMENT_ARRAY);
   1959 
   1960 	for (int arrayNdx = 0; arrayNdx < (int)m_arrays.size(); arrayNdx++)
   1961 	{
   1962 		std::stringstream attribName;
   1963 		attribName << "a_" << arrayNdx;
   1964 
   1965 		deUint32 loc = m_ctx.getAttribLocation(m_programID, attribName.str().c_str());
   1966 
   1967 		if (m_arrays[arrayNdx]->isBound())
   1968 		{
   1969 			m_ctx.enableVertexAttribArray(loc);
   1970 			GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glEnableVertexAttribArray()");
   1971 		}
   1972 
   1973 		m_arrays[arrayNdx]->bindAttribute(loc);
   1974 	}
   1975 
   1976 	if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWARRAYS)
   1977 	{
   1978 		m_ctx.drawArrays(primitiveToGL(primitive), firstVertex, vertexCount);
   1979 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawArrays()");
   1980 	}
   1981 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWARRAYS_INSTANCED)
   1982 	{
   1983 		m_ctx.drawArraysInstanced(primitiveToGL(primitive), firstVertex, vertexCount, instanceCount);
   1984 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawArraysInstanced()");
   1985 	}
   1986 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS)
   1987 	{
   1988 		m_ctx.drawElements(primitiveToGL(primitive), vertexCount, indexTypeToGL(indexType), indexOffset);
   1989 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawElements()");
   1990 	}
   1991 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS_RANGED)
   1992 	{
   1993 		m_ctx.drawRangeElements(primitiveToGL(primitive), rangeStart, rangeEnd, vertexCount, indexTypeToGL(indexType), indexOffset);
   1994 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawRangeElements()");
   1995 	}
   1996 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS_INSTANCED)
   1997 	{
   1998 		m_ctx.drawElementsInstanced(primitiveToGL(primitive), vertexCount, indexTypeToGL(indexType), indexOffset, instanceCount);
   1999 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawElementsInstanced()");
   2000 	}
   2001 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWARRAYS_INDIRECT)
   2002 	{
   2003 		struct DrawCommand
   2004 		{
   2005 			GLuint count;
   2006 			GLuint primCount;
   2007 			GLuint first;
   2008 			GLuint reservedMustBeZero;
   2009 		};
   2010 		deUint8* buffer = new deUint8[sizeof(DrawCommand) + indirectOffset];
   2011 
   2012 		{
   2013 			DrawCommand command;
   2014 
   2015 			command.count				= vertexCount;
   2016 			command.primCount			= instanceCount;
   2017 			command.first				= firstVertex;
   2018 			command.reservedMustBeZero	= 0;
   2019 
   2020 			memcpy(buffer + indirectOffset, &command, sizeof(command));
   2021 
   2022 			if (m_logEnabled)
   2023 				m_testCtx.getLog()
   2024 					<< tcu::TestLog::Message
   2025 					<< "DrawArraysIndirectCommand:\n"
   2026 					<< "\tcount: " << command.count << "\n"
   2027 					<< "\tprimCount: " << command.primCount << "\n"
   2028 					<< "\tfirst: " << command.first << "\n"
   2029 					<< "\treservedMustBeZero: " << command.reservedMustBeZero << "\n"
   2030 					<< tcu::TestLog::EndMessage;
   2031 		}
   2032 
   2033 		GLuint indirectBuf = 0;
   2034 		m_ctx.genBuffers(1, &indirectBuf);
   2035 		m_ctx.bindBuffer(GL_DRAW_INDIRECT_BUFFER, indirectBuf);
   2036 		m_ctx.bufferData(GL_DRAW_INDIRECT_BUFFER, sizeof(DrawCommand) + indirectOffset, buffer, GL_STATIC_DRAW);
   2037 		delete [] buffer;
   2038 
   2039 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "Setup draw indirect buffer");
   2040 
   2041 		m_ctx.drawArraysIndirect(primitiveToGL(primitive), (const deInt8*)DE_NULL + indirectOffset);
   2042 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawArraysIndirect()");
   2043 
   2044 		m_ctx.deleteBuffers(1, &indirectBuf);
   2045 	}
   2046 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS_INDIRECT)
   2047 	{
   2048 		struct DrawCommand
   2049 		{
   2050 			GLuint count;
   2051 			GLuint primCount;
   2052 			GLuint firstIndex;
   2053 			GLint  baseVertex;
   2054 			GLuint reservedMustBeZero;
   2055 		};
   2056 		deUint8* buffer = new deUint8[sizeof(DrawCommand) + indirectOffset];
   2057 
   2058 		{
   2059 			DrawCommand command;
   2060 
   2061 			// index offset must be converted to firstIndex by dividing with the index element size
   2062 			DE_ASSERT(((const deUint8*)indexOffset - (const deUint8*)DE_NULL) % gls::DrawTestSpec::indexTypeSize(indexType) == 0); // \note This is checked in spec validation
   2063 
   2064 			command.count				= vertexCount;
   2065 			command.primCount			= instanceCount;
   2066 			command.firstIndex			= (glw::GLuint)(((const deUint8*)indexOffset - (const deUint8*)DE_NULL) / gls::DrawTestSpec::indexTypeSize(indexType));
   2067 			command.baseVertex			= baseVertex;
   2068 			command.reservedMustBeZero	= 0;
   2069 
   2070 			memcpy(buffer + indirectOffset, &command, sizeof(command));
   2071 
   2072 			if (m_logEnabled)
   2073 				m_testCtx.getLog()
   2074 					<< tcu::TestLog::Message
   2075 					<< "DrawElementsIndirectCommand:\n"
   2076 					<< "\tcount: " << command.count << "\n"
   2077 					<< "\tprimCount: " << command.primCount << "\n"
   2078 					<< "\tfirstIndex: " << command.firstIndex << "\n"
   2079 					<< "\tbaseVertex: " << command.baseVertex << "\n"
   2080 					<< "\treservedMustBeZero: " << command.reservedMustBeZero << "\n"
   2081 					<< tcu::TestLog::EndMessage;
   2082 		}
   2083 
   2084 		GLuint indirectBuf = 0;
   2085 		m_ctx.genBuffers(1, &indirectBuf);
   2086 		m_ctx.bindBuffer(GL_DRAW_INDIRECT_BUFFER, indirectBuf);
   2087 		m_ctx.bufferData(GL_DRAW_INDIRECT_BUFFER, sizeof(DrawCommand) + indirectOffset, buffer, GL_STATIC_DRAW);
   2088 		delete [] buffer;
   2089 
   2090 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "Setup draw indirect buffer");
   2091 
   2092 		m_ctx.drawElementsIndirect(primitiveToGL(primitive), indexTypeToGL(indexType), (const deInt8*)DE_NULL + indirectOffset);
   2093 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawArraysIndirect()");
   2094 
   2095 		m_ctx.deleteBuffers(1, &indirectBuf);
   2096 	}
   2097 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS_BASEVERTEX)
   2098 	{
   2099 		m_ctx.drawElementsBaseVertex(primitiveToGL(primitive), vertexCount, indexTypeToGL(indexType), indexOffset, baseVertex);
   2100 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawElementsBaseVertex()");
   2101 	}
   2102 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS_INSTANCED_BASEVERTEX)
   2103 	{
   2104 		m_ctx.drawElementsInstancedBaseVertex(primitiveToGL(primitive), vertexCount, indexTypeToGL(indexType), indexOffset, instanceCount, baseVertex);
   2105 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawElementsInstancedBaseVertex()");
   2106 	}
   2107 	else if (drawMethod == DrawTestSpec::DRAWMETHOD_DRAWELEMENTS_RANGED_BASEVERTEX)
   2108 	{
   2109 		m_ctx.drawRangeElementsBaseVertex(primitiveToGL(primitive), rangeStart, rangeEnd, vertexCount, indexTypeToGL(indexType), indexOffset, baseVertex);
   2110 		GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDrawRangeElementsBaseVertex()");
   2111 	}
   2112 	else
   2113 		DE_ASSERT(DE_FALSE);
   2114 
   2115 	for (int arrayNdx = 0; arrayNdx < (int)m_arrays.size(); arrayNdx++)
   2116 	{
   2117 		if (m_arrays[arrayNdx]->isBound())
   2118 		{
   2119 			std::stringstream attribName;
   2120 			attribName << "a_" << arrayNdx;
   2121 
   2122 			deUint32 loc = m_ctx.getAttribLocation(m_programID, attribName.str().c_str());
   2123 
   2124 			m_ctx.disableVertexAttribArray(loc);
   2125 			GLU_EXPECT_NO_ERROR(m_ctx.getError(), "glDisableVertexAttribArray()");
   2126 		}
   2127 	}
   2128 
   2129 	if (m_useVao)
   2130 		m_ctx.bindVertexArray(0);
   2131 
   2132 	m_ctx.useProgram(0);
   2133 	m_ctx.readPixels(m_screen, 0, 0, m_screen.getWidth(), m_screen.getHeight());
   2134 }
   2135 
   2136 // DrawTestSpec
   2137 
   2138 DrawTestSpec::AttributeSpec	DrawTestSpec::AttributeSpec::createAttributeArray (InputType inputType, OutputType outputType, Storage storage, Usage usage, int componentCount, int offset, int stride, bool normalize, int instanceDivisor)
   2139 {
   2140 	DrawTestSpec::AttributeSpec spec;
   2141 
   2142 	spec.inputType			= inputType;
   2143 	spec.outputType			= outputType;
   2144 	spec.storage			= storage;
   2145 	spec.usage				= usage;
   2146 	spec.componentCount		= componentCount;
   2147 	spec.offset				= offset;
   2148 	spec.stride				= stride;
   2149 	spec.normalize			= normalize;
   2150 	spec.instanceDivisor	= instanceDivisor;
   2151 
   2152 	spec.useDefaultAttribute= false;
   2153 
   2154 	return spec;
   2155 }
   2156 
   2157 DrawTestSpec::AttributeSpec	DrawTestSpec::AttributeSpec::createDefaultAttribute (InputType inputType, OutputType outputType, int componentCount)
   2158 {
   2159 	DE_ASSERT(inputType == INPUTTYPE_INT || inputType == INPUTTYPE_UNSIGNED_INT || inputType == INPUTTYPE_FLOAT);
   2160 	DE_ASSERT(inputType == INPUTTYPE_FLOAT || componentCount == 4);
   2161 
   2162 	DrawTestSpec::AttributeSpec spec;
   2163 
   2164 	spec.inputType				= inputType;
   2165 	spec.outputType				= outputType;
   2166 	spec.storage				= DrawTestSpec::STORAGE_LAST;
   2167 	spec.usage					= DrawTestSpec::USAGE_LAST;
   2168 	spec.componentCount			= componentCount;
   2169 	spec.offset					= 0;
   2170 	spec.stride					= 0;
   2171 	spec.normalize				= 0;
   2172 	spec.instanceDivisor		= 0;
   2173 
   2174 	spec.useDefaultAttribute	= true;
   2175 
   2176 	return spec;
   2177 }
   2178 
   2179 DrawTestSpec::AttributeSpec::AttributeSpec (void)
   2180 {
   2181 	inputType					= DrawTestSpec::INPUTTYPE_LAST;
   2182 	outputType					= DrawTestSpec::OUTPUTTYPE_LAST;
   2183 	storage						= DrawTestSpec::STORAGE_LAST;
   2184 	usage						= DrawTestSpec::USAGE_LAST;
   2185 	componentCount				= 0;
   2186 	offset						= 0;
   2187 	stride						= 0;
   2188 	normalize					= false;
   2189 	instanceDivisor				= 0;
   2190 	useDefaultAttribute			= false;
   2191 	additionalPositionAttribute = false;
   2192 	bgraComponentOrder			= false;
   2193 }
   2194 
   2195 int DrawTestSpec::AttributeSpec::hash (void) const
   2196 {
   2197 	if (useDefaultAttribute)
   2198 	{
   2199 		return 1 * int(inputType) + 7 * int(outputType) + 13 * componentCount;
   2200 	}
   2201 	else
   2202 	{
   2203 		return 1 * int(inputType) + 2 * int(outputType) + 3 * int(storage) + 5 * int(usage) + 7 * componentCount + 11 * offset + 13 * stride + 17 * (normalize ? 0 : 1) + 19 * instanceDivisor;
   2204 	}
   2205 }
   2206 
   2207 bool DrawTestSpec::AttributeSpec::valid (glu::ApiType ctxType) const
   2208 {
   2209 	const bool inputTypeFloat				= inputType == DrawTestSpec::INPUTTYPE_FLOAT || inputType  == DrawTestSpec::INPUTTYPE_FIXED || inputType == DrawTestSpec::INPUTTYPE_HALF;
   2210 	const bool inputTypeUnsignedInteger		= inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE || inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT || inputType  == DrawTestSpec::INPUTTYPE_UNSIGNED_INT || inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10;
   2211 	const bool inputTypeSignedInteger		= inputType == DrawTestSpec::INPUTTYPE_BYTE  || inputType == DrawTestSpec::INPUTTYPE_SHORT || inputType == DrawTestSpec::INPUTTYPE_INT || inputType == DrawTestSpec::INPUTTYPE_INT_2_10_10_10;
   2212 	const bool inputTypePacked				= inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10 || inputType == DrawTestSpec::INPUTTYPE_INT_2_10_10_10;
   2213 
   2214 	const bool outputTypeFloat				= outputType == DrawTestSpec::OUTPUTTYPE_FLOAT || outputType == DrawTestSpec::OUTPUTTYPE_VEC2  || outputType == DrawTestSpec::OUTPUTTYPE_VEC3  || outputType == DrawTestSpec::OUTPUTTYPE_VEC4;
   2215 	const bool outputTypeSignedInteger		= outputType == DrawTestSpec::OUTPUTTYPE_INT   || outputType == DrawTestSpec::OUTPUTTYPE_IVEC2 || outputType == DrawTestSpec::OUTPUTTYPE_IVEC3 || outputType == DrawTestSpec::OUTPUTTYPE_IVEC4;
   2216 	const bool outputTypeUnsignedInteger	= outputType == DrawTestSpec::OUTPUTTYPE_UINT  || outputType == DrawTestSpec::OUTPUTTYPE_UVEC2 || outputType == DrawTestSpec::OUTPUTTYPE_UVEC3 || outputType == DrawTestSpec::OUTPUTTYPE_UVEC4;
   2217 
   2218 	if (useDefaultAttribute)
   2219 	{
   2220 		if (inputType != DrawTestSpec::INPUTTYPE_INT && inputType != DrawTestSpec::INPUTTYPE_UNSIGNED_INT && inputType != DrawTestSpec::INPUTTYPE_FLOAT)
   2221 			return false;
   2222 
   2223 		if (inputType != DrawTestSpec::INPUTTYPE_FLOAT && componentCount != 4)
   2224 			return false;
   2225 
   2226 		// no casting allowed (undefined results)
   2227 		if (inputType == DrawTestSpec::INPUTTYPE_INT && !outputTypeSignedInteger)
   2228 			return false;
   2229 		if (inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT && !outputTypeUnsignedInteger)
   2230 			return false;
   2231 	}
   2232 
   2233 	if (inputTypePacked && componentCount != 4)
   2234 		return false;
   2235 
   2236 	// Invalid conversions:
   2237 
   2238 	// float -> [u]int
   2239 	if (inputTypeFloat && !outputTypeFloat)
   2240 		return false;
   2241 
   2242 	// uint -> int		(undefined results)
   2243 	if (inputTypeUnsignedInteger && outputTypeSignedInteger)
   2244 		return false;
   2245 
   2246 	// int -> uint		(undefined results)
   2247 	if (inputTypeSignedInteger && outputTypeUnsignedInteger)
   2248 		return false;
   2249 
   2250 	// packed -> non-float (packed formats are converted to floats)
   2251 	if (inputTypePacked && !outputTypeFloat)
   2252 		return false;
   2253 
   2254 	// Invalid normalize. Normalize is only valid if output type is float
   2255 	if (normalize && !outputTypeFloat)
   2256 		return false;
   2257 
   2258 	// Allow reverse order (GL_BGRA) only for packed and 4-component ubyte
   2259 	if (bgraComponentOrder && componentCount != 4)
   2260 		return false;
   2261 	if (bgraComponentOrder && inputType != DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10 && inputType != DrawTestSpec::INPUTTYPE_INT_2_10_10_10 && inputType != DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE)
   2262 		return false;
   2263 	if (bgraComponentOrder && normalize != true)
   2264 		return false;
   2265 
   2266 	// GLES2 limits
   2267 	if (ctxType == glu::ApiType::es(2,0))
   2268 	{
   2269 		if (inputType != DrawTestSpec::INPUTTYPE_FLOAT && inputType != DrawTestSpec::INPUTTYPE_FIXED &&
   2270 			inputType != DrawTestSpec::INPUTTYPE_BYTE  && inputType != DrawTestSpec::INPUTTYPE_UNSIGNED_BYTE &&
   2271 			inputType != DrawTestSpec::INPUTTYPE_SHORT && inputType != DrawTestSpec::INPUTTYPE_UNSIGNED_SHORT)
   2272 			return false;
   2273 
   2274 		if (!outputTypeFloat)
   2275 			return false;
   2276 
   2277 		if (bgraComponentOrder)
   2278 			return false;
   2279 	}
   2280 
   2281 	// GLES3 limits
   2282 	if (ctxType.getProfile() == glu::PROFILE_ES && ctxType.getMajorVersion() == 3)
   2283 	{
   2284 		if (bgraComponentOrder)
   2285 			return false;
   2286 	}
   2287 
   2288 	// No user pointers in GL core
   2289 	if (ctxType.getProfile() == glu::PROFILE_CORE)
   2290 	{
   2291 		if (!useDefaultAttribute && storage == DrawTestSpec::STORAGE_USER)
   2292 			return false;
   2293 	}
   2294 
   2295 	return true;
   2296 }
   2297 
   2298 bool DrawTestSpec::AttributeSpec::isBufferAligned (void) const
   2299 {
   2300 	const bool inputTypePacked = inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10 || inputType == DrawTestSpec::INPUTTYPE_INT_2_10_10_10;
   2301 
   2302 	// Buffer alignment, offset is a multiple of underlying data type size?
   2303 	if (storage == STORAGE_BUFFER)
   2304 	{
   2305 		int dataTypeSize = gls::DrawTestSpec::inputTypeSize(inputType);
   2306 		if (inputTypePacked)
   2307 			dataTypeSize = 4;
   2308 
   2309 		if (offset % dataTypeSize != 0)
   2310 			return false;
   2311 	}
   2312 
   2313 	return true;
   2314 }
   2315 
   2316 bool DrawTestSpec::AttributeSpec::isBufferStrideAligned (void) const
   2317 {
   2318 	const bool inputTypePacked = inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10 || inputType == DrawTestSpec::INPUTTYPE_INT_2_10_10_10;
   2319 
   2320 	// Buffer alignment, offset is a multiple of underlying data type size?
   2321 	if (storage == STORAGE_BUFFER)
   2322 	{
   2323 		int dataTypeSize = gls::DrawTestSpec::inputTypeSize(inputType);
   2324 		if (inputTypePacked)
   2325 			dataTypeSize = 4;
   2326 
   2327 		if (stride % dataTypeSize != 0)
   2328 			return false;
   2329 	}
   2330 
   2331 	return true;
   2332 }
   2333 
   2334 std::string DrawTestSpec::targetToString(Target target)
   2335 {
   2336 	DE_ASSERT(target < TARGET_LAST);
   2337 
   2338 	static const char* targets[] =
   2339 	{
   2340 		"element_array",	// TARGET_ELEMENT_ARRAY = 0,
   2341 		"array"				// TARGET_ARRAY,
   2342 	};
   2343 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(targets) == DrawTestSpec::TARGET_LAST);
   2344 
   2345 	return targets[(int)target];
   2346 }
   2347 
   2348 std::string DrawTestSpec::inputTypeToString(InputType type)
   2349 {
   2350 	DE_ASSERT(type < INPUTTYPE_LAST);
   2351 
   2352 	static const char* types[] =
   2353 	{
   2354 		"float",			// INPUTTYPE_FLOAT = 0,
   2355 		"fixed",			// INPUTTYPE_FIXED,
   2356 		"double",			// INPUTTYPE_DOUBLE
   2357 
   2358 		"byte",				// INPUTTYPE_BYTE,
   2359 		"short",			// INPUTTYPE_SHORT,
   2360 
   2361 		"unsigned_byte",	// INPUTTYPE_UNSIGNED_BYTE,
   2362 		"unsigned_short",	// INPUTTYPE_UNSIGNED_SHORT,
   2363 
   2364 		"int",						// INPUTTYPE_INT,
   2365 		"unsigned_int",				// INPUTTYPE_UNSIGNED_INT,
   2366 		"half",						// INPUTTYPE_HALF,
   2367 		"unsigned_int2_10_10_10",	// INPUTTYPE_UNSIGNED_INT_2_10_10_10,
   2368 		"int2_10_10_10"				// INPUTTYPE_INT_2_10_10_10,
   2369 	};
   2370 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(types) == DrawTestSpec::INPUTTYPE_LAST);
   2371 
   2372 	return types[(int)type];
   2373 }
   2374 
   2375 std::string DrawTestSpec::outputTypeToString(OutputType type)
   2376 {
   2377 	DE_ASSERT(type < OUTPUTTYPE_LAST);
   2378 
   2379 	static const char* types[] =
   2380 	{
   2381 		"float",		// OUTPUTTYPE_FLOAT = 0,
   2382 		"vec2",			// OUTPUTTYPE_VEC2,
   2383 		"vec3",			// OUTPUTTYPE_VEC3,
   2384 		"vec4",			// OUTPUTTYPE_VEC4,
   2385 
   2386 		"int",			// OUTPUTTYPE_INT,
   2387 		"uint",			// OUTPUTTYPE_UINT,
   2388 
   2389 		"ivec2",		// OUTPUTTYPE_IVEC2,
   2390 		"ivec3",		// OUTPUTTYPE_IVEC3,
   2391 		"ivec4",		// OUTPUTTYPE_IVEC4,
   2392 
   2393 		"uvec2",		// OUTPUTTYPE_UVEC2,
   2394 		"uvec3",		// OUTPUTTYPE_UVEC3,
   2395 		"uvec4",		// OUTPUTTYPE_UVEC4,
   2396 	};
   2397 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(types) == DrawTestSpec::OUTPUTTYPE_LAST);
   2398 
   2399 	return types[(int)type];
   2400 }
   2401 
   2402 std::string DrawTestSpec::usageTypeToString(Usage usage)
   2403 {
   2404 	DE_ASSERT(usage < USAGE_LAST);
   2405 
   2406 	static const char* usages[] =
   2407 	{
   2408 		"dynamic_draw",	// USAGE_DYNAMIC_DRAW = 0,
   2409 		"static_draw",	// USAGE_STATIC_DRAW,
   2410 		"stream_draw",	// USAGE_STREAM_DRAW,
   2411 
   2412 		"stream_read",	// USAGE_STREAM_READ,
   2413 		"stream_copy",	// USAGE_STREAM_COPY,
   2414 
   2415 		"static_read",	// USAGE_STATIC_READ,
   2416 		"static_copy",	// USAGE_STATIC_COPY,
   2417 
   2418 		"dynamic_read",	// USAGE_DYNAMIC_READ,
   2419 		"dynamic_copy",	// USAGE_DYNAMIC_COPY,
   2420 	};
   2421 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(usages) == DrawTestSpec::USAGE_LAST);
   2422 
   2423 	return usages[(int)usage];
   2424 }
   2425 
   2426 std::string	DrawTestSpec::storageToString (Storage storage)
   2427 {
   2428 	DE_ASSERT(storage < STORAGE_LAST);
   2429 
   2430 	static const char* storages[] =
   2431 	{
   2432 		"user_ptr",	// STORAGE_USER = 0,
   2433 		"buffer"	// STORAGE_BUFFER,
   2434 	};
   2435 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(storages) == DrawTestSpec::STORAGE_LAST);
   2436 
   2437 	return storages[(int)storage];
   2438 }
   2439 
   2440 std::string DrawTestSpec::primitiveToString (Primitive primitive)
   2441 {
   2442 	DE_ASSERT(primitive < PRIMITIVE_LAST);
   2443 
   2444 	static const char* primitives[] =
   2445 	{
   2446 		"points",					// PRIMITIVE_POINTS ,
   2447 		"triangles",				// PRIMITIVE_TRIANGLES,
   2448 		"triangle_fan",				// PRIMITIVE_TRIANGLE_FAN,
   2449 		"triangle_strip",			// PRIMITIVE_TRIANGLE_STRIP,
   2450 		"lines",					// PRIMITIVE_LINES
   2451 		"line_strip",				// PRIMITIVE_LINE_STRIP
   2452 		"line_loop",				// PRIMITIVE_LINE_LOOP
   2453 		"lines_adjacency",			// PRIMITIVE_LINES_ADJACENCY
   2454 		"line_strip_adjacency",		// PRIMITIVE_LINE_STRIP_ADJACENCY
   2455 		"triangles_adjacency",		// PRIMITIVE_TRIANGLES_ADJACENCY
   2456 		"triangle_strip_adjacency",	// PRIMITIVE_TRIANGLE_STRIP_ADJACENCY
   2457 	};
   2458 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(primitives) == DrawTestSpec::PRIMITIVE_LAST);
   2459 
   2460 	return primitives[(int)primitive];
   2461 }
   2462 
   2463 std::string DrawTestSpec::indexTypeToString (IndexType type)
   2464 {
   2465 	DE_ASSERT(type < DrawTestSpec::INDEXTYPE_LAST);
   2466 
   2467 	static const char* indexTypes[] =
   2468 	{
   2469 		"byte",		// INDEXTYPE_BYTE = 0,
   2470 		"short",	// INDEXTYPE_SHORT,
   2471 		"int",		// INDEXTYPE_INT,
   2472 	};
   2473 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(indexTypes) == DrawTestSpec::INDEXTYPE_LAST);
   2474 
   2475 	return indexTypes[(int)type];
   2476 }
   2477 
   2478 std::string DrawTestSpec::drawMethodToString (DrawTestSpec::DrawMethod method)
   2479 {
   2480 	DE_ASSERT(method < DrawTestSpec::DRAWMETHOD_LAST);
   2481 
   2482 	static const char* methods[] =
   2483 	{
   2484 		"draw_arrays",							//!< DRAWMETHOD_DRAWARRAYS
   2485 		"draw_arrays_instanced",				//!< DRAWMETHOD_DRAWARRAYS_INSTANCED
   2486 		"draw_arrays_indirect",					//!< DRAWMETHOD_DRAWARRAYS_INDIRECT
   2487 		"draw_elements",						//!< DRAWMETHOD_DRAWELEMENTS
   2488 		"draw_range_elements",					//!< DRAWMETHOD_DRAWELEMENTS_RANGED
   2489 		"draw_elements_instanced",				//!< DRAWMETHOD_DRAWELEMENTS_INSTANCED
   2490 		"draw_elements_indirect",				//!< DRAWMETHOD_DRAWELEMENTS_INDIRECT
   2491 		"draw_elements_base_vertex",			//!< DRAWMETHOD_DRAWELEMENTS_BASEVERTEX,
   2492 		"draw_elements_instanced_base_vertex",	//!< DRAWMETHOD_DRAWELEMENTS_INSTANCED_BASEVERTEX,
   2493 		"draw_range_elements_base_vertex",		//!< DRAWMETHOD_DRAWELEMENTS_RANGED_BASEVERTEX,
   2494 	};
   2495 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(methods) == DrawTestSpec::DRAWMETHOD_LAST);
   2496 
   2497 	return methods[(int)method];
   2498 }
   2499 
   2500 int DrawTestSpec::inputTypeSize (InputType type)
   2501 {
   2502 	DE_ASSERT(type < INPUTTYPE_LAST);
   2503 
   2504 	static const int size[] =
   2505 	{
   2506 		sizeof(float),		// INPUTTYPE_FLOAT = 0,
   2507 		sizeof(deInt32),	// INPUTTYPE_FIXED,
   2508 		sizeof(double),		// INPUTTYPE_DOUBLE
   2509 
   2510 		sizeof(deInt8),		// INPUTTYPE_BYTE,
   2511 		sizeof(deInt16),	// INPUTTYPE_SHORT,
   2512 
   2513 		sizeof(deUint8),	// INPUTTYPE_UNSIGNED_BYTE,
   2514 		sizeof(deUint16),	// INPUTTYPE_UNSIGNED_SHORT,
   2515 
   2516 		sizeof(deInt32),		// INPUTTYPE_INT,
   2517 		sizeof(deUint32),		// INPUTTYPE_UNSIGNED_INT,
   2518 		sizeof(deFloat16),		// INPUTTYPE_HALF,
   2519 		sizeof(deUint32) / 4,		// INPUTTYPE_UNSIGNED_INT_2_10_10_10,
   2520 		sizeof(deUint32) / 4		// INPUTTYPE_INT_2_10_10_10,
   2521 	};
   2522 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(size) == DrawTestSpec::INPUTTYPE_LAST);
   2523 
   2524 	return size[(int)type];
   2525 }
   2526 
   2527 int DrawTestSpec::indexTypeSize (IndexType type)
   2528 {
   2529 	DE_ASSERT(type < INDEXTYPE_LAST);
   2530 
   2531 	static const int size[] =
   2532 	{
   2533 		sizeof(deUint8),	// INDEXTYPE_BYTE,
   2534 		sizeof(deUint16),	// INDEXTYPE_SHORT,
   2535 		sizeof(deUint32),	// INDEXTYPE_INT,
   2536 	};
   2537 	DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(size) == DrawTestSpec::INDEXTYPE_LAST);
   2538 
   2539 	return size[(int)type];
   2540 }
   2541 
   2542 std::string DrawTestSpec::getName (void) const
   2543 {
   2544 	const MethodInfo	methodInfo	= getMethodInfo(drawMethod);
   2545 	const bool			hasFirst	= methodInfo.first;
   2546 	const bool			instanced	= methodInfo.instanced;
   2547 	const bool			ranged		= methodInfo.ranged;
   2548 	const bool			indexed		= methodInfo.indexed;
   2549 
   2550 	std::stringstream name;
   2551 
   2552 	for (size_t ndx = 0; ndx < attribs.size(); ++ndx)
   2553 	{
   2554 		const AttributeSpec& attrib = attribs[ndx];
   2555 
   2556 		if (attribs.size() > 1)
   2557 			name << "attrib" << ndx << "_";
   2558 
   2559 		if (ndx == 0|| attrib.additionalPositionAttribute)
   2560 			name << "pos_";
   2561 		else
   2562 			name << "col_";
   2563 
   2564 		if (attrib.useDefaultAttribute)
   2565 		{
   2566 			name
   2567 				<< "non_array_"
   2568 				<< DrawTestSpec::inputTypeToString((DrawTestSpec::InputType)attrib.inputType) << "_"
   2569 				<< attrib.componentCount << "_"
   2570 				<< DrawTestSpec::outputTypeToString(attrib.outputType) << "_";
   2571 		}
   2572 		else
   2573 		{
   2574 			name
   2575 				<< DrawTestSpec::storageToString(attrib.storage) << "_"
   2576 				<< attrib.offset << "_"
   2577 				<< attrib.stride << "_"
   2578 				<< DrawTestSpec::inputTypeToString((DrawTestSpec::InputType)attrib.inputType);
   2579 			if (attrib.inputType != DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10 && attrib.inputType != DrawTestSpec::INPUTTYPE_INT_2_10_10_10)
   2580 				name << attrib.componentCount;
   2581 			name
   2582 				<< "_"
   2583 				<< (attrib.normalize ? "normalized_" : "")
   2584 				<< DrawTestSpec::outputTypeToString(attrib.outputType) << "_"
   2585 				<< DrawTestSpec::usageTypeToString(attrib.usage) << "_"
   2586 				<< attrib.instanceDivisor << "_";
   2587 		}
   2588 	}
   2589 
   2590 	if (indexed)
   2591 		name
   2592 			<< "index_" << DrawTestSpec::indexTypeToString(indexType) << "_"
   2593 			<< DrawTestSpec::storageToString(indexStorage) << "_"
   2594 			<< "offset" << indexPointerOffset << "_";
   2595 	if (hasFirst)
   2596 		name << "first" << first << "_";
   2597 	if (ranged)
   2598 		name << "ranged_" << indexMin << "_" << indexMax << "_";
   2599 	if (instanced)
   2600 		name << "instances" << instanceCount << "_";
   2601 
   2602 	switch (primitive)
   2603 	{
   2604 		case DrawTestSpec::PRIMITIVE_POINTS:
   2605 			name << "points_";
   2606 			break;
   2607 		case DrawTestSpec::PRIMITIVE_TRIANGLES:
   2608 			name << "triangles_";
   2609 			break;
   2610 		case DrawTestSpec::PRIMITIVE_TRIANGLE_FAN:
   2611 			name << "triangle_fan_";
   2612 			break;
   2613 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP:
   2614 			name << "triangle_strip_";
   2615 			break;
   2616 		case DrawTestSpec::PRIMITIVE_LINES:
   2617 			name << "lines_";
   2618 			break;
   2619 		case DrawTestSpec::PRIMITIVE_LINE_STRIP:
   2620 			name << "line_strip_";
   2621 			break;
   2622 		case DrawTestSpec::PRIMITIVE_LINE_LOOP:
   2623 			name << "line_loop_";
   2624 			break;
   2625 		case DrawTestSpec::PRIMITIVE_LINES_ADJACENCY:
   2626 			name << "line_adjancency";
   2627 			break;
   2628 		case DrawTestSpec::PRIMITIVE_LINE_STRIP_ADJACENCY:
   2629 			name << "line_strip_adjancency";
   2630 			break;
   2631 		case DrawTestSpec::PRIMITIVE_TRIANGLES_ADJACENCY:
   2632 			name << "triangles_adjancency";
   2633 			break;
   2634 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP_ADJACENCY:
   2635 			name << "triangle_strip_adjancency";
   2636 			break;
   2637 		default:
   2638 			DE_ASSERT(false);
   2639 			break;
   2640 	}
   2641 
   2642 	name << primitiveCount;
   2643 
   2644 	return name.str();
   2645 }
   2646 
   2647 std::string DrawTestSpec::getDesc (void) const
   2648 {
   2649 	std::stringstream desc;
   2650 
   2651 	for (size_t ndx = 0; ndx < attribs.size(); ++ndx)
   2652 	{
   2653 		const AttributeSpec& attrib = attribs[ndx];
   2654 
   2655 		if (attrib.useDefaultAttribute)
   2656 		{
   2657 			desc
   2658 				<< "Attribute " << ndx << ": default, " << ((ndx == 0|| attrib.additionalPositionAttribute) ? ("position ,") : ("color ,"))
   2659 				<< "input datatype " << DrawTestSpec::inputTypeToString((DrawTestSpec::InputType)attrib.inputType) << ", "
   2660 				<< "input component count " << attrib.componentCount << ", "
   2661 				<< "used as " << DrawTestSpec::outputTypeToString(attrib.outputType) << ", ";
   2662 		}
   2663 		else
   2664 		{
   2665 			desc
   2666 				<< "Attribute " << ndx << ": " << ((ndx == 0|| attrib.additionalPositionAttribute) ? ("position ,") : ("color ,"))
   2667 				<< "Storage in " << DrawTestSpec::storageToString(attrib.storage) << ", "
   2668 				<< "stride " << attrib.stride << ", "
   2669 				<< "input datatype " << DrawTestSpec::inputTypeToString((DrawTestSpec::InputType)attrib.inputType) << ", "
   2670 				<< "input component count " << attrib.componentCount << ", "
   2671 				<< (attrib.normalize ? "normalized, " : "")
   2672 				<< "used as " << DrawTestSpec::outputTypeToString(attrib.outputType) << ", "
   2673 				<< "instance divisor " << attrib.instanceDivisor << ", ";
   2674 		}
   2675 	}
   2676 
   2677 	if (drawMethod == DRAWMETHOD_DRAWARRAYS)
   2678 	{
   2679 		desc
   2680 			<< "drawArrays(), "
   2681 			<< "first " << first << ", ";
   2682 	}
   2683 	else if (drawMethod == DRAWMETHOD_DRAWARRAYS_INSTANCED)
   2684 	{
   2685 		desc
   2686 			<< "drawArraysInstanced(), "
   2687 			<< "first " << first << ", "
   2688 			<< "instance count " << instanceCount << ", ";
   2689 	}
   2690 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS)
   2691 	{
   2692 		desc
   2693 			<< "drawElements(), "
   2694 			<< "index type " << DrawTestSpec::indexTypeToString(indexType) << ", "
   2695 			<< "index storage in " << DrawTestSpec::storageToString(indexStorage) << ", "
   2696 			<< "index offset " << indexPointerOffset << ", ";
   2697 	}
   2698 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_RANGED)
   2699 	{
   2700 		desc
   2701 			<< "drawElementsRanged(), "
   2702 			<< "index type " << DrawTestSpec::indexTypeToString(indexType) << ", "
   2703 			<< "index storage in " << DrawTestSpec::storageToString(indexStorage) << ", "
   2704 			<< "index offset " << indexPointerOffset << ", "
   2705 			<< "range start " << indexMin << ", "
   2706 			<< "range end " << indexMax << ", ";
   2707 	}
   2708 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_INSTANCED)
   2709 	{
   2710 		desc
   2711 			<< "drawElementsInstanced(), "
   2712 			<< "index type " << DrawTestSpec::indexTypeToString(indexType) << ", "
   2713 			<< "index storage in " << DrawTestSpec::storageToString(indexStorage) << ", "
   2714 			<< "index offset " << indexPointerOffset << ", "
   2715 			<< "instance count " << instanceCount << ", ";
   2716 	}
   2717 	else if (drawMethod == DRAWMETHOD_DRAWARRAYS_INDIRECT)
   2718 	{
   2719 		desc
   2720 			<< "drawArraysIndirect(), "
   2721 			<< "first " << first << ", "
   2722 			<< "instance count " << instanceCount << ", "
   2723 			<< "indirect offset " << indirectOffset << ", ";
   2724 	}
   2725 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_INDIRECT)
   2726 	{
   2727 		desc
   2728 			<< "drawElementsIndirect(), "
   2729 			<< "index type " << DrawTestSpec::indexTypeToString(indexType) << ", "
   2730 			<< "index storage in " << DrawTestSpec::storageToString(indexStorage) << ", "
   2731 			<< "index offset " << indexPointerOffset << ", "
   2732 			<< "instance count " << instanceCount << ", "
   2733 			<< "indirect offset " << indirectOffset << ", "
   2734 			<< "base vertex " << baseVertex << ", ";
   2735 	}
   2736 	else
   2737 		DE_ASSERT(DE_FALSE);
   2738 
   2739 	desc << primitiveCount;
   2740 
   2741 	switch (primitive)
   2742 	{
   2743 		case DrawTestSpec::PRIMITIVE_POINTS:
   2744 			desc << "points";
   2745 			break;
   2746 		case DrawTestSpec::PRIMITIVE_TRIANGLES:
   2747 			desc << "triangles";
   2748 			break;
   2749 		case DrawTestSpec::PRIMITIVE_TRIANGLE_FAN:
   2750 			desc << "triangles (fan)";
   2751 			break;
   2752 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP:
   2753 			desc << "triangles (strip)";
   2754 			break;
   2755 		case DrawTestSpec::PRIMITIVE_LINES:
   2756 			desc << "lines";
   2757 			break;
   2758 		case DrawTestSpec::PRIMITIVE_LINE_STRIP:
   2759 			desc << "lines (strip)";
   2760 			break;
   2761 		case DrawTestSpec::PRIMITIVE_LINE_LOOP:
   2762 			desc << "lines (loop)";
   2763 			break;
   2764 		case DrawTestSpec::PRIMITIVE_LINES_ADJACENCY:
   2765 			desc << "lines (adjancency)";
   2766 			break;
   2767 		case DrawTestSpec::PRIMITIVE_LINE_STRIP_ADJACENCY:
   2768 			desc << "lines (strip, adjancency)";
   2769 			break;
   2770 		case DrawTestSpec::PRIMITIVE_TRIANGLES_ADJACENCY:
   2771 			desc << "triangles (adjancency)";
   2772 			break;
   2773 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP_ADJACENCY:
   2774 			desc << "triangles (strip, adjancency)";
   2775 			break;
   2776 		default:
   2777 			DE_ASSERT(false);
   2778 			break;
   2779 	}
   2780 
   2781 	return desc.str();
   2782 }
   2783 
   2784 std::string DrawTestSpec::getMultilineDesc (void) const
   2785 {
   2786 	std::stringstream desc;
   2787 
   2788 	for (size_t ndx = 0; ndx < attribs.size(); ++ndx)
   2789 	{
   2790 		const AttributeSpec& attrib = attribs[ndx];
   2791 
   2792 		if (attrib.useDefaultAttribute)
   2793 		{
   2794 			desc
   2795 				<< "Attribute " << ndx << ": default, " << ((ndx == 0|| attrib.additionalPositionAttribute) ? ("position\n") : ("color\n"))
   2796 				<< "\tinput datatype " << DrawTestSpec::inputTypeToString((DrawTestSpec::InputType)attrib.inputType) << "\n"
   2797 				<< "\tinput component count " << attrib.componentCount << "\n"
   2798 				<< "\tused as " << DrawTestSpec::outputTypeToString(attrib.outputType) << "\n";
   2799 		}
   2800 		else
   2801 		{
   2802 			desc
   2803 				<< "Attribute " << ndx << ": " << ((ndx == 0|| attrib.additionalPositionAttribute) ? ("position\n") : ("color\n"))
   2804 				<< "\tStorage in " << DrawTestSpec::storageToString(attrib.storage) << "\n"
   2805 				<< "\tstride " << attrib.stride << "\n"
   2806 				<< "\tinput datatype " << DrawTestSpec::inputTypeToString((DrawTestSpec::InputType)attrib.inputType) << "\n"
   2807 				<< "\tinput component count " << attrib.componentCount << "\n"
   2808 				<< (attrib.normalize ? "\tnormalized\n" : "")
   2809 				<< "\tused as " << DrawTestSpec::outputTypeToString(attrib.outputType) << "\n"
   2810 				<< "\tinstance divisor " << attrib.instanceDivisor << "\n";
   2811 		}
   2812 	}
   2813 
   2814 	if (drawMethod == DRAWMETHOD_DRAWARRAYS)
   2815 	{
   2816 		desc
   2817 			<< "drawArrays()\n"
   2818 			<< "\tfirst " << first << "\n";
   2819 	}
   2820 	else if (drawMethod == DRAWMETHOD_DRAWARRAYS_INSTANCED)
   2821 	{
   2822 		desc
   2823 			<< "drawArraysInstanced()\n"
   2824 			<< "\tfirst " << first << "\n"
   2825 			<< "\tinstance count " << instanceCount << "\n";
   2826 	}
   2827 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS)
   2828 	{
   2829 		desc
   2830 			<< "drawElements()\n"
   2831 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2832 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2833 			<< "\tindex offset " << indexPointerOffset << "\n";
   2834 	}
   2835 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_RANGED)
   2836 	{
   2837 		desc
   2838 			<< "drawElementsRanged()\n"
   2839 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2840 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2841 			<< "\tindex offset " << indexPointerOffset << "\n"
   2842 			<< "\trange start " << indexMin << "\n"
   2843 			<< "\trange end " << indexMax << "\n";
   2844 	}
   2845 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_INSTANCED)
   2846 	{
   2847 		desc
   2848 			<< "drawElementsInstanced()\n"
   2849 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2850 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2851 			<< "\tindex offset " << indexPointerOffset << "\n"
   2852 			<< "\tinstance count " << instanceCount << "\n";
   2853 	}
   2854 	else if (drawMethod == DRAWMETHOD_DRAWARRAYS_INDIRECT)
   2855 	{
   2856 		desc
   2857 			<< "drawArraysIndirect()\n"
   2858 			<< "\tfirst " << first << "\n"
   2859 			<< "\tinstance count " << instanceCount << "\n"
   2860 			<< "\tindirect offset " << indirectOffset << "\n";
   2861 	}
   2862 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_INDIRECT)
   2863 	{
   2864 		desc
   2865 			<< "drawElementsIndirect()\n"
   2866 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2867 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2868 			<< "\tindex offset " << indexPointerOffset << "\n"
   2869 			<< "\tinstance count " << instanceCount << "\n"
   2870 			<< "\tindirect offset " << indirectOffset << "\n"
   2871 			<< "\tbase vertex " << baseVertex << "\n";
   2872 	}
   2873 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_BASEVERTEX)
   2874 	{
   2875 		desc
   2876 			<< "drawElementsBaseVertex()\n"
   2877 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2878 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2879 			<< "\tindex offset " << indexPointerOffset << "\n"
   2880 			<< "\tbase vertex " << baseVertex << "\n";
   2881 	}
   2882 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_INSTANCED_BASEVERTEX)
   2883 	{
   2884 		desc
   2885 			<< "drawElementsInstancedBaseVertex()\n"
   2886 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2887 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2888 			<< "\tindex offset " << indexPointerOffset << "\n"
   2889 			<< "\tinstance count " << instanceCount << "\n"
   2890 			<< "\tbase vertex " << baseVertex << "\n";
   2891 	}
   2892 	else if (drawMethod == DRAWMETHOD_DRAWELEMENTS_RANGED_BASEVERTEX)
   2893 	{
   2894 		desc
   2895 			<< "drawRangeElementsBaseVertex()\n"
   2896 			<< "\tindex type " << DrawTestSpec::indexTypeToString(indexType) << "\n"
   2897 			<< "\tindex storage in " << DrawTestSpec::storageToString(indexStorage) << "\n"
   2898 			<< "\tindex offset " << indexPointerOffset << "\n"
   2899 			<< "\tbase vertex " << baseVertex << "\n"
   2900 			<< "\trange start " << indexMin << "\n"
   2901 			<< "\trange end " << indexMax << "\n";
   2902 	}
   2903 	else
   2904 		DE_ASSERT(DE_FALSE);
   2905 
   2906 	desc << "\t" << primitiveCount << " ";
   2907 
   2908 	switch (primitive)
   2909 	{
   2910 		case DrawTestSpec::PRIMITIVE_POINTS:
   2911 			desc << "points";
   2912 			break;
   2913 		case DrawTestSpec::PRIMITIVE_TRIANGLES:
   2914 			desc << "triangles";
   2915 			break;
   2916 		case DrawTestSpec::PRIMITIVE_TRIANGLE_FAN:
   2917 			desc << "triangles (fan)";
   2918 			break;
   2919 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP:
   2920 			desc << "triangles (strip)";
   2921 			break;
   2922 		case DrawTestSpec::PRIMITIVE_LINES:
   2923 			desc << "lines";
   2924 			break;
   2925 		case DrawTestSpec::PRIMITIVE_LINE_STRIP:
   2926 			desc << "lines (strip)";
   2927 			break;
   2928 		case DrawTestSpec::PRIMITIVE_LINE_LOOP:
   2929 			desc << "lines (loop)";
   2930 			break;
   2931 		case DrawTestSpec::PRIMITIVE_LINES_ADJACENCY:
   2932 			desc << "lines (adjancency)";
   2933 			break;
   2934 		case DrawTestSpec::PRIMITIVE_LINE_STRIP_ADJACENCY:
   2935 			desc << "lines (strip, adjancency)";
   2936 			break;
   2937 		case DrawTestSpec::PRIMITIVE_TRIANGLES_ADJACENCY:
   2938 			desc << "triangles (adjancency)";
   2939 			break;
   2940 		case DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP_ADJACENCY:
   2941 			desc << "triangles (strip, adjancency)";
   2942 			break;
   2943 		default:
   2944 			DE_ASSERT(false);
   2945 			break;
   2946 	}
   2947 
   2948 	desc << "\n";
   2949 
   2950 	return desc.str();
   2951 }
   2952 
   2953 DrawTestSpec::DrawTestSpec (void)
   2954 {
   2955 	primitive			= PRIMITIVE_LAST;
   2956 	primitiveCount		= 0;
   2957 	drawMethod			= DRAWMETHOD_LAST;
   2958 	indexType			= INDEXTYPE_LAST;
   2959 	indexPointerOffset	= 0;
   2960 	indexStorage		= STORAGE_LAST;
   2961 	first				= 0;
   2962 	indexMin			= 0;
   2963 	indexMax			= 0;
   2964 	instanceCount		= 0;
   2965 	indirectOffset		= 0;
   2966 	baseVertex			= 0;
   2967 }
   2968 
   2969 int DrawTestSpec::hash (void) const
   2970 {
   2971 	// Use only drawmode-relevant values in "hashing" as the unrelevant values might not be set (causing non-deterministic behavior).
   2972 	const MethodInfo	methodInfo		= getMethodInfo(drawMethod);
   2973 	const bool			arrayed			= methodInfo.first;
   2974 	const bool			instanced		= methodInfo.instanced;
   2975 	const bool			ranged			= methodInfo.ranged;
   2976 	const bool			indexed			= methodInfo.indexed;
   2977 	const bool			indirect		= methodInfo.indirect;
   2978 	const bool			hasBaseVtx		= methodInfo.baseVertex;
   2979 
   2980 	const int			indexHash		= (!indexed)	? (0) : (int(indexType) + 10 * indexPointerOffset + 100 * int(indexStorage));
   2981 	const int			arrayHash		= (!arrayed)	? (0) : (first);
   2982 	const int			indexRangeHash	= (!ranged)		? (0) : (indexMin + 10 * indexMax);
   2983 	const int			instanceHash	= (!instanced)	? (0) : (instanceCount);
   2984 	const int			indirectHash	= (!indirect)	? (0) : (indirectOffset);
   2985 	const int			baseVtxHash		= (!hasBaseVtx)	? (0) : (baseVertex);
   2986 	const int			basicHash		= int(primitive) + 10 * primitiveCount + 100 * int(drawMethod);
   2987 
   2988 	return indexHash + 3 * arrayHash + 5 * indexRangeHash + 7 * instanceHash + 13 * basicHash + 17 * (int)attribs.size() + 19 * primitiveCount + 23 * indirectHash + 27 * baseVtxHash;
   2989 }
   2990 
   2991 bool DrawTestSpec::valid (void) const
   2992 {
   2993 	DE_ASSERT(apiType.getProfile() != glu::PROFILE_LAST);
   2994 	DE_ASSERT(primitive != PRIMITIVE_LAST);
   2995 	DE_ASSERT(drawMethod != DRAWMETHOD_LAST);
   2996 
   2997 	const MethodInfo methodInfo = getMethodInfo(drawMethod);
   2998 
   2999 	for (int ndx = 0; ndx < (int)attribs.size(); ++ndx)
   3000 		if (!attribs[ndx].valid(apiType))
   3001 			return false;
   3002 
   3003 	if (methodInfo.ranged)
   3004 	{
   3005 		deUint32 maxIndexValue = 0;
   3006 		if (indexType == INDEXTYPE_BYTE)
   3007 			maxIndexValue = GLValue::getMaxValue(INPUTTYPE_UNSIGNED_BYTE).ub.getValue();
   3008 		else if (indexType == INDEXTYPE_SHORT)
   3009 			maxIndexValue = GLValue::getMaxValue(INPUTTYPE_UNSIGNED_SHORT).us.getValue();
   3010 		else if (indexType == INDEXTYPE_INT)
   3011 			maxIndexValue = GLValue::getMaxValue(INPUTTYPE_UNSIGNED_INT).ui.getValue();
   3012 		else
   3013 			DE_ASSERT(DE_FALSE);
   3014 
   3015 		if (indexMin > indexMax)
   3016 			return false;
   3017 		if (indexMin < 0 || indexMax < 0)
   3018 			return false;
   3019 		if ((deUint32)indexMin > maxIndexValue || (deUint32)indexMax > maxIndexValue)
   3020 			return false;
   3021 	}
   3022 
   3023 	if (methodInfo.first && first < 0)
   3024 		return false;
   3025 
   3026 	// GLES2 limits
   3027 	if (apiType == glu::ApiType::es(2,0))
   3028 	{
   3029 		if (drawMethod != gls::DrawTestSpec::DRAWMETHOD_DRAWARRAYS && drawMethod != gls::DrawTestSpec::DRAWMETHOD_DRAWELEMENTS)
   3030 			return false;
   3031 		if (drawMethod == gls::DrawTestSpec::DRAWMETHOD_DRAWELEMENTS && (indexType != INDEXTYPE_BYTE && indexType != INDEXTYPE_SHORT))
   3032 			return false;
   3033 	}
   3034 
   3035 	// Indirect limitations
   3036 	if (methodInfo.indirect)
   3037 	{
   3038 		// Indirect offset alignment
   3039 		if (indirectOffset % 4 != 0)
   3040 			return false;
   3041 
   3042 		// All attribute arrays must be stored in a buffer
   3043 		for (int ndx = 0; ndx < (int)attribs.size(); ++ndx)
   3044 			if (!attribs[ndx].useDefaultAttribute && attribs[ndx].storage == gls::DrawTestSpec::STORAGE_USER)
   3045 				return false;
   3046 	}
   3047 	if (drawMethod == DRAWMETHOD_DRAWELEMENTS_INDIRECT)
   3048 	{
   3049 		// index offset must be convertable to firstIndex
   3050 		if (indexPointerOffset % gls::DrawTestSpec::indexTypeSize(indexType) != 0)
   3051 			return false;
   3052 
   3053 		// Indices must be in a buffer
   3054 		if (indexStorage != STORAGE_BUFFER)
   3055 			return false;
   3056 	}
   3057 
   3058 	// Do not allow user pointer in GL core
   3059 	if (apiType.getProfile() == glu::PROFILE_CORE)
   3060 	{
   3061 		if (methodInfo.indexed && indexStorage == DrawTestSpec::STORAGE_USER)
   3062 			return false;
   3063 	}
   3064 
   3065 	return true;
   3066 }
   3067 
   3068 DrawTestSpec::CompatibilityTestType DrawTestSpec::isCompatibilityTest (void) const
   3069 {
   3070 	const MethodInfo methodInfo = getMethodInfo(drawMethod);
   3071 
   3072 	bool bufferAlignmentBad = false;
   3073 	bool strideAlignmentBad = false;
   3074 
   3075 	// Attribute buffer alignment
   3076 	for (int ndx = 0; ndx < (int)attribs.size(); ++ndx)
   3077 		if (!attribs[ndx].isBufferAligned())
   3078 			bufferAlignmentBad = true;
   3079 
   3080 	// Attribute stride alignment
   3081 	for (int ndx = 0; ndx < (int)attribs.size(); ++ndx)
   3082 		if (!attribs[ndx].isBufferStrideAligned())
   3083 			strideAlignmentBad = true;
   3084 
   3085 	// Index buffer alignment
   3086 	if (methodInfo.indexed)
   3087 	{
   3088 		if (indexStorage == STORAGE_BUFFER)
   3089 		{
   3090 			int indexSize = 0;
   3091 			if (indexType == INDEXTYPE_BYTE)
   3092 				indexSize = 1;
   3093 			else if (indexType == INDEXTYPE_SHORT)
   3094 				indexSize = 2;
   3095 			else if (indexType == INDEXTYPE_INT)
   3096 				indexSize = 4;
   3097 			else
   3098 				DE_ASSERT(DE_FALSE);
   3099 
   3100 			if (indexPointerOffset % indexSize != 0)
   3101 				bufferAlignmentBad = true;
   3102 		}
   3103 	}
   3104 
   3105 	// \note combination bad alignment & stride is treated as bad offset
   3106 	if (bufferAlignmentBad)
   3107 		return COMPATIBILITY_UNALIGNED_OFFSET;
   3108 	else if (strideAlignmentBad)
   3109 		return COMPATIBILITY_UNALIGNED_STRIDE;
   3110 	else
   3111 		return COMPATIBILITY_NONE;
   3112 }
   3113 
   3114 // DrawTest
   3115 
   3116 DrawTest::DrawTest (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const DrawTestSpec& spec, const char* name, const char* desc)
   3117 	: TestCase			(testCtx, name, desc)
   3118 	, m_renderCtx		(renderCtx)
   3119 	, m_refBuffers		(DE_NULL)
   3120 	, m_refContext		(DE_NULL)
   3121 	, m_glesContext		(DE_NULL)
   3122 	, m_glArrayPack		(DE_NULL)
   3123 	, m_rrArrayPack		(DE_NULL)
   3124 	, m_maxDiffRed		(-1)
   3125 	, m_maxDiffGreen	(-1)
   3126 	, m_maxDiffBlue		(-1)
   3127 	, m_iteration		(0)
   3128 	, m_result			()	// \note no per-iteration result logging (only one iteration)
   3129 {
   3130 	addIteration(spec);
   3131 }
   3132 
   3133 DrawTest::DrawTest (tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* desc)
   3134 	: TestCase			(testCtx, name, desc)
   3135 	, m_renderCtx		(renderCtx)
   3136 	, m_refBuffers		(DE_NULL)
   3137 	, m_refContext		(DE_NULL)
   3138 	, m_glesContext		(DE_NULL)
   3139 	, m_glArrayPack		(DE_NULL)
   3140 	, m_rrArrayPack		(DE_NULL)
   3141 	, m_maxDiffRed		(-1)
   3142 	, m_maxDiffGreen	(-1)
   3143 	, m_maxDiffBlue		(-1)
   3144 	, m_iteration		(0)
   3145 	, m_result			(testCtx.getLog(), "Iteration result: ")
   3146 {
   3147 }
   3148 
   3149 DrawTest::~DrawTest	(void)
   3150 {
   3151 	deinit();
   3152 }
   3153 
   3154 void DrawTest::addIteration (const DrawTestSpec& spec, const char* description)
   3155 {
   3156 	// Validate spec
   3157 	const bool validSpec = spec.valid();
   3158 	DE_ASSERT(validSpec);
   3159 
   3160 	if (!validSpec)
   3161 		return;
   3162 
   3163 	// Check the context type is the same with other iterations
   3164 	if (!m_specs.empty())
   3165 	{
   3166 		const bool validContext = m_specs[0].apiType == spec.apiType;
   3167 		DE_ASSERT(validContext);
   3168 
   3169 		if (!validContext)
   3170 			return;
   3171 	}
   3172 
   3173 	m_specs.push_back(spec);
   3174 
   3175 	if (description)
   3176 		m_iteration_descriptions.push_back(std::string(description));
   3177 	else
   3178 		m_iteration_descriptions.push_back(std::string());
   3179 }
   3180 
   3181 void DrawTest::init (void)
   3182 {
   3183 	const int						renderTargetWidth	= de::min(MAX_RENDER_TARGET_SIZE, m_renderCtx.getRenderTarget().getWidth());
   3184 	const int						renderTargetHeight	= de::min(MAX_RENDER_TARGET_SIZE, m_renderCtx.getRenderTarget().getHeight());
   3185 	sglr::ReferenceContextLimits	limits				(m_renderCtx);
   3186 	bool							useVao				= false;
   3187 
   3188 	m_glesContext = new sglr::GLContext(m_renderCtx, m_testCtx.getLog(), sglr::GLCONTEXT_LOG_CALLS | sglr::GLCONTEXT_LOG_PROGRAMS, tcu::IVec4(0, 0, renderTargetWidth, renderTargetHeight));
   3189 
   3190 	if (m_renderCtx.getType().getAPI() == glu::ApiType::es(2,0) || m_renderCtx.getType().getAPI() == glu::ApiType::es(3,0))
   3191 		useVao = false;
   3192 	else if (contextSupports(m_renderCtx.getType(), glu::ApiType::es(3,1)) || glu::isContextTypeGLCore(m_renderCtx.getType()))
   3193 		useVao = true;
   3194 	else
   3195 		DE_ASSERT(!"Unknown context type");
   3196 
   3197 	DE_ASSERT(!m_specs.empty());
   3198 	DE_ASSERT(contextSupports(m_renderCtx.getType(), m_specs[0].apiType));
   3199 
   3200 	m_refBuffers	= new sglr::ReferenceContextBuffers(m_renderCtx.getRenderTarget().getPixelFormat(), 0, 0, renderTargetWidth, renderTargetHeight);
   3201 	m_refContext	= new sglr::ReferenceContext(limits, m_refBuffers->getColorbuffer(), m_refBuffers->getDepthbuffer(), m_refBuffers->getStencilbuffer());
   3202 
   3203 	m_glArrayPack	= new AttributePack(m_testCtx, m_renderCtx, *m_glesContext, tcu::UVec2(renderTargetWidth, renderTargetHeight), useVao, true);
   3204 	m_rrArrayPack	= new AttributePack(m_testCtx, m_renderCtx, *m_refContext,  tcu::UVec2(renderTargetWidth, renderTargetHeight), useVao, false);
   3205 
   3206 	m_maxDiffRed	= deCeilFloatToInt32(256.0f * (6.0f / (1 << m_renderCtx.getRenderTarget().getPixelFormat().redBits)));
   3207 	m_maxDiffGreen	= deCeilFloatToInt32(256.0f * (6.0f / (1 << m_renderCtx.getRenderTarget().getPixelFormat().greenBits)));
   3208 	m_maxDiffBlue	= deCeilFloatToInt32(256.0f * (6.0f / (1 << m_renderCtx.getRenderTarget().getPixelFormat().blueBits)));
   3209 }
   3210 
   3211 void DrawTest::deinit (void)
   3212 {
   3213 	delete m_glArrayPack;
   3214 	delete m_rrArrayPack;
   3215 	delete m_refBuffers;
   3216 	delete m_refContext;
   3217 	delete m_glesContext;
   3218 
   3219 	m_glArrayPack	= DE_NULL;
   3220 	m_rrArrayPack	= DE_NULL;
   3221 	m_refBuffers	= DE_NULL;
   3222 	m_refContext	= DE_NULL;
   3223 	m_glesContext	= DE_NULL;
   3224 }
   3225 
   3226 DrawTest::IterateResult DrawTest::iterate (void)
   3227 {
   3228 	const int					specNdx			= (m_iteration / 2);
   3229 	const bool					drawStep		= (m_iteration % 2) == 0;
   3230 	const bool					compareStep		= (m_iteration % 2) == 1;
   3231 	const IterateResult			iterateResult	= ((size_t)m_iteration + 1 == m_specs.size()*2) ? (STOP) : (CONTINUE);
   3232 	const DrawTestSpec&			spec			= m_specs[specNdx];
   3233 	const bool					updateProgram	= (m_iteration == 0) || (drawStep && !checkSpecsShaderCompatible(m_specs[specNdx], m_specs[specNdx-1])); // try to use the same shader in all iterations
   3234 	IterationLogSectionEmitter	sectionEmitter	(m_testCtx.getLog(), specNdx, m_specs.size(), m_iteration_descriptions[specNdx], drawStep && m_specs.size()!=1);
   3235 
   3236 	if (drawStep)
   3237 	{
   3238 		const MethodInfo	methodInfo				= getMethodInfo(spec.drawMethod);
   3239 		const bool			indexed					= methodInfo.indexed;
   3240 		const bool			instanced				= methodInfo.instanced;
   3241 		const bool			ranged					= methodInfo.ranged;
   3242 		const bool			hasFirst				= methodInfo.first;
   3243 		const bool			hasBaseVtx				= methodInfo.baseVertex;
   3244 
   3245 		const size_t		primitiveElementCount	= getElementCount(spec.primitive, spec.primitiveCount);						// !< elements to be drawn
   3246 		const int			indexMin				= (ranged) ? (spec.indexMin) : (0);
   3247 		const int			firstAddition			= (hasFirst) ? (spec.first) : (0);
   3248 		const int			baseVertexAddition		= (hasBaseVtx && spec.baseVertex > 0) ? ( spec.baseVertex) : (0);			// spec.baseVertex > 0 => Create bigger attribute buffer
   3249 		const int			indexBase				= (hasBaseVtx && spec.baseVertex < 0) ? (-spec.baseVertex) : (0);			// spec.baseVertex < 0 => Create bigger indices
   3250 		const size_t		elementCount			= primitiveElementCount + indexMin + firstAddition + baseVertexAddition;	// !< elements in buffer (buffer should have at least primitiveElementCount ACCESSIBLE (index range, first) elements)
   3251 		const int			maxElementIndex			= (int)primitiveElementCount + indexMin + firstAddition - 1;
   3252 		const int			indexMax				= de::max(0, (ranged) ? (de::clamp<int>(spec.indexMax, 0, maxElementIndex)) : (maxElementIndex));
   3253 		float				coordScale				= getCoordScale(spec);
   3254 		float				colorScale				= getColorScale(spec);
   3255 
   3256 		rr::GenericVec4		nullAttribValue;
   3257 
   3258 		// Log info
   3259 		m_testCtx.getLog() << TestLog::Message << spec.getMultilineDesc() << TestLog::EndMessage;
   3260 		m_testCtx.getLog() << TestLog::Message << TestLog::EndMessage; // extra line for clarity
   3261 
   3262 		// Data
   3263 
   3264 		m_glArrayPack->clearArrays();
   3265 		m_rrArrayPack->clearArrays();
   3266 
   3267 		for (int attribNdx = 0; attribNdx < (int)spec.attribs.size(); attribNdx++)
   3268 		{
   3269 			DrawTestSpec::AttributeSpec attribSpec		= spec.attribs[attribNdx];
   3270 			const bool					isPositionAttr	= (attribNdx == 0) || (attribSpec.additionalPositionAttribute);
   3271 
   3272 			if (attribSpec.useDefaultAttribute)
   3273 			{
   3274 				const int		seed		= 10 * attribSpec.hash() + 100 * spec.hash() + attribNdx;
   3275 				rr::GenericVec4 attribValue = RandomArrayGenerator::generateAttributeValue(seed, attribSpec.inputType);
   3276 
   3277 				m_glArrayPack->newArray(DrawTestSpec::STORAGE_USER);
   3278 				m_rrArrayPack->newArray(DrawTestSpec::STORAGE_USER);
   3279 
   3280 				m_glArrayPack->getArray(attribNdx)->setupArray(false, 0, attribSpec.componentCount, attribSpec.inputType, attribSpec.outputType, false, 0, 0, attribValue, isPositionAttr, false);
   3281 				m_rrArrayPack->getArray(attribNdx)->setupArray(false, 0, attribSpec.componentCount, attribSpec.inputType, attribSpec.outputType, false, 0, 0, attribValue, isPositionAttr, false);
   3282 			}
   3283 			else
   3284 			{
   3285 				const int					seed					= attribSpec.hash() + 100 * spec.hash() + attribNdx;
   3286 				const size_t				elementSize				= attribSpec.componentCount * DrawTestSpec::inputTypeSize(attribSpec.inputType);
   3287 				const size_t				stride					= (attribSpec.stride == 0) ? (elementSize) : (attribSpec.stride);
   3288 				const size_t				evaluatedElementCount	= (instanced && attribSpec.instanceDivisor > 0) ? (spec.instanceCount / attribSpec.instanceDivisor + 1) : (elementCount);
   3289 				const size_t				referencedElementCount	= (ranged) ? (de::max<size_t>(evaluatedElementCount, spec.indexMax + 1)) : (evaluatedElementCount);
   3290 				const size_t				bufferSize				= attribSpec.offset + stride * (referencedElementCount - 1) + elementSize;
   3291 				const char*					data					= RandomArrayGenerator::generateArray(seed, (int)referencedElementCount, attribSpec.componentCount, attribSpec.offset, (int)stride, attribSpec.inputType);
   3292 
   3293 				try
   3294 				{
   3295 					m_glArrayPack->newArray(attribSpec.storage);
   3296 					m_rrArrayPack->newArray(attribSpec.storage);
   3297 
   3298 					m_glArrayPack->getArray(attribNdx)->data(DrawTestSpec::TARGET_ARRAY, bufferSize, data, attribSpec.usage);
   3299 					m_rrArrayPack->getArray(attribNdx)->data(DrawTestSpec::TARGET_ARRAY, bufferSize, data, attribSpec.usage);
   3300 
   3301 					m_glArrayPack->getArray(attribNdx)->setupArray(true, attribSpec.offset, attribSpec.componentCount, attribSpec.inputType, attribSpec.outputType, attribSpec.normalize, attribSpec.stride, attribSpec.instanceDivisor, nullAttribValue, isPositionAttr, attribSpec.bgraComponentOrder);
   3302 					m_rrArrayPack->getArray(attribNdx)->setupArray(true, attribSpec.offset, attribSpec.componentCount, attribSpec.inputType, attribSpec.outputType, attribSpec.normalize, attribSpec.stride, attribSpec.instanceDivisor, nullAttribValue, isPositionAttr, attribSpec.bgraComponentOrder);
   3303 
   3304 					delete [] data;
   3305 					data = NULL;
   3306 				}
   3307 				catch (...)
   3308 				{
   3309 					delete [] data;
   3310 					throw;
   3311 				}
   3312 			}
   3313 		}
   3314 
   3315 		// Shader program
   3316 		if (updateProgram)
   3317 		{
   3318 			m_glArrayPack->updateProgram();
   3319 			m_rrArrayPack->updateProgram();
   3320 		}
   3321 
   3322 		// Draw
   3323 		try
   3324 		{
   3325 			// indices
   3326 			if (indexed)
   3327 			{
   3328 				const int		seed				= spec.hash();
   3329 				const size_t	indexElementSize	= DrawTestSpec::indexTypeSize(spec.indexType);
   3330 				const size_t	indexArraySize		= spec.indexPointerOffset + indexElementSize * elementCount;
   3331 				const char*		indexArray			= RandomArrayGenerator::generateIndices(seed, (int)elementCount, spec.indexType, spec.indexPointerOffset, indexMin, indexMax, indexBase);
   3332 				const char*		indexPointerBase	= (spec.indexStorage == DrawTestSpec::STORAGE_USER) ? (indexArray) : ((char*)DE_NULL);
   3333 				const char*		indexPointer		= indexPointerBase + spec.indexPointerOffset;
   3334 
   3335 				de::UniquePtr<AttributeArray> glArray	(new AttributeArray(spec.indexStorage, *m_glesContext));
   3336 				de::UniquePtr<AttributeArray> rrArray	(new AttributeArray(spec.indexStorage, *m_refContext));
   3337 
   3338 				try
   3339 				{
   3340 					glArray->data(DrawTestSpec::TARGET_ELEMENT_ARRAY, indexArraySize, indexArray, DrawTestSpec::USAGE_STATIC_DRAW);
   3341 					rrArray->data(DrawTestSpec::TARGET_ELEMENT_ARRAY, indexArraySize, indexArray, DrawTestSpec::USAGE_STATIC_DRAW);
   3342 
   3343 					m_glArrayPack->render(spec.primitive, spec.drawMethod, 0, (int)primitiveElementCount, spec.indexType, indexPointer, spec.indexMin, spec.indexMax, spec.instanceCount, spec.indirectOffset, spec.baseVertex, coordScale, colorScale, glArray.get());
   3344 					m_rrArrayPack->render(spec.primitive, spec.drawMethod, 0, (int)primitiveElementCount, spec.indexType, indexPointer, spec.indexMin, spec.indexMax, spec.instanceCount, spec.indirectOffset, spec.baseVertex, coordScale, colorScale, rrArray.get());
   3345 
   3346 					delete [] indexArray;
   3347 					indexArray = NULL;
   3348 				}
   3349 				catch (...)
   3350 				{
   3351 					delete [] indexArray;
   3352 					throw;
   3353 				}
   3354 			}
   3355 			else
   3356 			{
   3357 				m_glArrayPack->render(spec.primitive, spec.drawMethod, spec.first, (int)primitiveElementCount, DrawTestSpec::INDEXTYPE_LAST, DE_NULL, 0, 0, spec.instanceCount, spec.indirectOffset, 0, coordScale, colorScale, DE_NULL);
   3358 				m_rrArrayPack->render(spec.primitive, spec.drawMethod, spec.first, (int)primitiveElementCount, DrawTestSpec::INDEXTYPE_LAST, DE_NULL, 0, 0, spec.instanceCount, spec.indirectOffset, 0, coordScale, colorScale, DE_NULL);
   3359 			}
   3360 		}
   3361 		catch (glu::Error& err)
   3362 		{
   3363 			// GL Errors are ok if the mode is not properly aligned
   3364 
   3365 			const DrawTestSpec::CompatibilityTestType ctype = spec.isCompatibilityTest();
   3366 
   3367 			m_testCtx.getLog() << TestLog::Message << "Got error: " << err.what() << TestLog::EndMessage;
   3368 
   3369 			if (ctype == DrawTestSpec::COMPATIBILITY_UNALIGNED_OFFSET)
   3370 				m_result.addResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned buffers.");
   3371 			else if (ctype == DrawTestSpec::COMPATIBILITY_UNALIGNED_STRIDE)
   3372 				m_result.addResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned stride.");
   3373 			else
   3374 				throw;
   3375 		}
   3376 	}
   3377 	else if (compareStep)
   3378 	{
   3379 		if (!compare(spec.primitive))
   3380 		{
   3381 			const DrawTestSpec::CompatibilityTestType ctype = spec.isCompatibilityTest();
   3382 
   3383 			if (ctype == DrawTestSpec::COMPATIBILITY_UNALIGNED_OFFSET)
   3384 				m_result.addResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned buffers.");
   3385 			else if (ctype == DrawTestSpec::COMPATIBILITY_UNALIGNED_STRIDE)
   3386 				m_result.addResult(QP_TEST_RESULT_COMPATIBILITY_WARNING, "Failed to draw with unaligned stride.");
   3387 			else
   3388 				m_result.addResult(QP_TEST_RESULT_FAIL, "Image comparison failed.");
   3389 		}
   3390 	}
   3391 	else
   3392 	{
   3393 		DE_ASSERT(false);
   3394 		return STOP;
   3395 	}
   3396 
   3397 	m_result.setTestContextResult(m_testCtx);
   3398 
   3399 	m_iteration++;
   3400 	return iterateResult;
   3401 }
   3402 
   3403 enum PrimitiveClass
   3404 {
   3405 	PRIMITIVECLASS_POINT = 0,
   3406 	PRIMITIVECLASS_LINE,
   3407 	PRIMITIVECLASS_TRIANGLE,
   3408 
   3409 	PRIMITIVECLASS_LAST
   3410 };
   3411 
   3412 static PrimitiveClass getDrawPrimitiveClass (gls::DrawTestSpec::Primitive primitiveType)
   3413 {
   3414 	switch (primitiveType)
   3415 	{
   3416 		case gls::DrawTestSpec::PRIMITIVE_POINTS:
   3417 			return PRIMITIVECLASS_POINT;
   3418 
   3419 		case gls::DrawTestSpec::PRIMITIVE_LINES:
   3420 		case gls::DrawTestSpec::PRIMITIVE_LINE_STRIP:
   3421 		case gls::DrawTestSpec::PRIMITIVE_LINE_LOOP:
   3422 		case gls::DrawTestSpec::PRIMITIVE_LINES_ADJACENCY:
   3423 		case gls::DrawTestSpec::PRIMITIVE_LINE_STRIP_ADJACENCY:
   3424 			return PRIMITIVECLASS_LINE;
   3425 
   3426 		case gls::DrawTestSpec::PRIMITIVE_TRIANGLES:
   3427 		case gls::DrawTestSpec::PRIMITIVE_TRIANGLE_FAN:
   3428 		case gls::DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP:
   3429 		case gls::DrawTestSpec::PRIMITIVE_TRIANGLES_ADJACENCY:
   3430 		case gls::DrawTestSpec::PRIMITIVE_TRIANGLE_STRIP_ADJACENCY:
   3431 			return PRIMITIVECLASS_TRIANGLE;
   3432 
   3433 		default:
   3434 			DE_ASSERT(false);
   3435 			return PRIMITIVECLASS_LAST;
   3436 	}
   3437 }
   3438 
   3439 static bool isBlack (const tcu::RGBA& c)
   3440 {
   3441 	// ignore alpha channel
   3442 	return c.getRed() == 0 && c.getGreen() == 0 && c.getBlue() == 0;
   3443 }
   3444 
   3445 static bool isEdgeTripletComponent (int c1, int c2, int c3, int renderTargetDifference)
   3446 {
   3447 	const int	roundingDifference	= 2 * renderTargetDifference; // src and dst pixels rounded to different directions
   3448 	const int	d1					= c2 - c1;
   3449 	const int	d2					= c3 - c2;
   3450 	const int	rampDiff			= de::abs(d2 - d1);
   3451 
   3452 	return rampDiff > roundingDifference;
   3453 }
   3454 
   3455 static bool isEdgeTriplet (const tcu::RGBA& c1, const tcu::RGBA& c2, const tcu::RGBA& c3, const tcu::IVec3& renderTargetThreshold)
   3456 {
   3457 	// black (background color) and non-black is always an edge
   3458 	{
   3459 		const bool b1 = isBlack(c1);
   3460 		const bool b2 = isBlack(c2);
   3461 		const bool b3 = isBlack(c3);
   3462 
   3463 		// both pixels with coverage and pixels without coverage
   3464 		if ((b1 && b2 && b3) == false && (b1 || b2 || b3) == true)
   3465 			return true;
   3466 		// all black
   3467 		if (b1 && b2 && b3)
   3468 			return false;
   3469 		// all with coverage
   3470 		DE_ASSERT(!b1 && !b2 && !b3);
   3471 	}
   3472 
   3473 	// Color is always linearly interpolated => component values change nearly linearly
   3474 	// in any constant direction on triangle hull. (df/dx ~= C).
   3475 
   3476 	// Edge detection (this function) is run against the reference image
   3477 	// => no dithering to worry about
   3478 
   3479 	return	isEdgeTripletComponent(c1.getRed(),		c2.getRed(),	c3.getRed(),	renderTargetThreshold.x())	||
   3480 			isEdgeTripletComponent(c1.getGreen(),	c2.getGreen(),	c3.getGreen(),	renderTargetThreshold.y())	||
   3481 			isEdgeTripletComponent(c1.getBlue(),	c2.getBlue(),	c3.getBlue(),	renderTargetThreshold.z());
   3482 }
   3483 
   3484 static bool pixelNearEdge (int x, int y, const tcu::Surface& ref, const tcu::IVec3& renderTargetThreshold)
   3485 {
   3486 	// should not be called for edge pixels
   3487 	DE_ASSERT(x >= 1 && x <= ref.getWidth()-2);
   3488 	DE_ASSERT(y >= 1 && y <= ref.getHeight()-2);
   3489 
   3490 	// horizontal
   3491 
   3492 	for (int dy = -1; dy < 2; ++dy)
   3493 	{
   3494 		const tcu::RGBA c1 = ref.getPixel(x-1, y+dy);
   3495 		const tcu::RGBA c2 = ref.getPixel(x,   y+dy);
   3496 		const tcu::RGBA c3 = ref.getPixel(x+1, y+dy);
   3497 		if (isEdgeTriplet(c1, c2, c3, renderTargetThreshold))
   3498 			return true;
   3499 	}
   3500 
   3501 	// vertical
   3502 
   3503 	for (int dx = -1; dx < 2; ++dx)
   3504 	{
   3505 		const tcu::RGBA c1 = ref.getPixel(x+dx, y-1);
   3506 		const tcu::RGBA c2 = ref.getPixel(x+dx, y);
   3507 		const tcu::RGBA c3 = ref.getPixel(x+dx, y+1);
   3508 		if (isEdgeTriplet(c1, c2, c3, renderTargetThreshold))
   3509 			return true;
   3510 	}
   3511 
   3512 	return false;
   3513 }
   3514 
   3515 static deUint32 getVisualizationGrayscaleColor (const tcu::RGBA& c)
   3516 {
   3517 	// make triangle coverage and error pixels obvious by converting coverage to grayscale
   3518 	if (isBlack(c))
   3519 		return 0;
   3520 	else
   3521 		return 50u + (deUint32)(c.getRed() + c.getBlue() + c.getGreen()) / 8u;
   3522 }
   3523 
   3524 static bool pixelNearLineIntersection (int x, int y, const tcu::Surface& target)
   3525 {
   3526 	// should not be called for edge pixels
   3527 	DE_ASSERT(x >= 1 && x <= target.getWidth()-2);
   3528 	DE_ASSERT(y >= 1 && y <= target.getHeight()-2);
   3529 
   3530 	int coveredPixels = 0;
   3531 
   3532 	for (int dy = -1; dy < 2; dy++)
   3533 	for (int dx = -1; dx < 2; dx++)
   3534 	{
   3535 		const bool targetCoverage = !isBlack(target.getPixel(x+dx, y+dy));
   3536 		if (targetCoverage)
   3537 		{
   3538 			++coveredPixels;
   3539 
   3540 			// A single thin line cannot have more than 3 covered pixels in a 3x3 area
   3541 			if (coveredPixels >= 4)
   3542 				return true;
   3543 		}
   3544 	}
   3545 
   3546 	return false;
   3547 }
   3548 
   3549 // search 3x3 are for matching color
   3550 static bool pixelNeighborhoodContainsColor (const tcu::Surface& target, int x, int y, const tcu::RGBA& color, const tcu::IVec3& compareThreshold)
   3551 {
   3552 	// should not be called for edge pixels
   3553 	DE_ASSERT(x >= 1 && x <= target.getWidth()-2);
   3554 	DE_ASSERT(y >= 1 && y <= target.getHeight()-2);
   3555 
   3556 	for (int dy = -1; dy < 2; dy++)
   3557 	for (int dx = -1; dx < 2; dx++)
   3558 	{
   3559 		const tcu::RGBA	targetCmpPixel	= target.getPixel(x+dx, y+dy);
   3560 		const int		r				= deAbs32(color.getRed()	- targetCmpPixel.getRed());
   3561 		const int		g				= deAbs32(color.getGreen()	- targetCmpPixel.getGreen());
   3562 		const int		b				= deAbs32(color.getBlue()	- targetCmpPixel.getBlue());
   3563 
   3564 		if (r <= compareThreshold.x() && g <= compareThreshold.y() && b <= compareThreshold.z())
   3565 			return true;
   3566 	}
   3567 
   3568 	return false;
   3569 }
   3570 
   3571 // search 3x3 are for matching coverage (coverage == (color != background color))
   3572 static bool pixelNeighborhoodContainsCoverage (const tcu::Surface& target, int x, int y, bool coverage)
   3573 {
   3574 	// should not be called for edge pixels
   3575 	DE_ASSERT(x >= 1 && x <= target.getWidth()-2);
   3576 	DE_ASSERT(y >= 1 && y <= target.getHeight()-2);
   3577 
   3578 	for (int dy = -1; dy < 2; dy++)
   3579 	for (int dx = -1; dx < 2; dx++)
   3580 	{
   3581 		const bool targetCmpCoverage = !isBlack(target.getPixel(x+dx, y+dy));
   3582 		if (targetCmpCoverage == coverage)
   3583 			return true;
   3584 	}
   3585 
   3586 	return false;
   3587 }
   3588 
   3589 static bool edgeRelaxedImageCompare (tcu::TestLog& log, const char* imageSetName, const char* imageSetDesc, const tcu::Surface& reference, const tcu::Surface& result, const tcu::IVec3& compareThreshold, const tcu::IVec3& renderTargetThreshold, int maxAllowedInvalidPixels)
   3590 {
   3591 	DE_ASSERT(result.getWidth() == reference.getWidth() && result.getHeight() == reference.getHeight());
   3592 
   3593 	const tcu::IVec4	green						(0, 255, 0, 255);
   3594 	const tcu::IVec4	errorColor					(255, 0, 0, 255);
   3595 	const int			width						= reference.getWidth();
   3596 	const int			height						= reference.getHeight();
   3597 	tcu::TextureLevel	errorMask					(tcu::TextureFormat(tcu::TextureFormat::RGB, tcu::TextureFormat::UNORM_INT8), width, height);
   3598 	int					numFailingPixels			= 0;
   3599 
   3600 	// clear errormask edges which would otherwise be transparent
   3601 
   3602 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), 0,			0,			width,	1),			green);
   3603 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), 0,			height-1,	width,	1),			green);
   3604 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), 0,			0,			1,		height),	green);
   3605 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), width-1,	0,			1,		height),	green);
   3606 
   3607 	// skip edge pixels since coverage on edge cannot be verified
   3608 
   3609 	for (int y = 1; y < height - 1; ++y)
   3610 	for (int x = 1; x < width - 1; ++x)
   3611 	{
   3612 		const tcu::RGBA	refPixel			= reference.getPixel(x, y);
   3613 		const tcu::RGBA	screenPixel			= result.getPixel(x, y);
   3614 		const bool		isOkReferencePixel	= pixelNeighborhoodContainsColor(result, x, y, refPixel, compareThreshold);			// screen image has a matching pixel nearby (~= If something is drawn on reference, it must be drawn to screen too.)
   3615 		const bool		isOkScreenPixel		= pixelNeighborhoodContainsColor(reference, x, y, screenPixel, compareThreshold);	// reference image has a matching pixel nearby (~= If something is drawn on screen, it must be drawn to reference too.)
   3616 
   3617 		if (isOkScreenPixel && isOkReferencePixel)
   3618 		{
   3619 			// pixel valid, write greenish pixels to make the result image easier to read
   3620 			const deUint32 grayscaleValue = getVisualizationGrayscaleColor(screenPixel);
   3621 			errorMask.getAccess().setPixel(tcu::UVec4(grayscaleValue, 255, grayscaleValue, 255), x, y);
   3622 		}
   3623 		else if (!pixelNearEdge(x, y, reference, renderTargetThreshold))
   3624 		{
   3625 			// non-edge pixel values must be within threshold of the reference values
   3626 			errorMask.getAccess().setPixel(errorColor, x, y);
   3627 			++numFailingPixels;
   3628 		}
   3629 		else
   3630 		{
   3631 			// we are on/near an edge, verify only coverage (coverage == not background colored)
   3632 			const bool	referenceCoverage		= !isBlack(refPixel);
   3633 			const bool	screenCoverage			= !isBlack(screenPixel);
   3634 			const bool	isOkReferenceCoverage	= pixelNeighborhoodContainsCoverage(result, x, y, referenceCoverage);	// Check reference pixel against screen pixel
   3635 			const bool	isOkScreenCoverage		= pixelNeighborhoodContainsCoverage(reference, x, y, screenCoverage);	// Check screen pixels against reference pixel
   3636 
   3637 			if (isOkScreenCoverage && isOkReferenceCoverage)
   3638 			{
   3639 				// pixel valid, write greenish pixels to make the result image easier to read
   3640 				const deUint32 grayscaleValue = getVisualizationGrayscaleColor(screenPixel);
   3641 				errorMask.getAccess().setPixel(tcu::UVec4(grayscaleValue, 255, grayscaleValue, 255), x, y);
   3642 			}
   3643 			else
   3644 			{
   3645 				// coverage does not match
   3646 				errorMask.getAccess().setPixel(errorColor, x, y);
   3647 				++numFailingPixels;
   3648 			}
   3649 		}
   3650 	}
   3651 
   3652 	log	<< TestLog::Message
   3653 		<< "Comparing images:\n"
   3654 		<< "\tallowed deviation in pixel positions = 1\n"
   3655 		<< "\tnumber of allowed invalid pixels = " << maxAllowedInvalidPixels << "\n"
   3656 		<< "\tnumber of invalid pixels = " << numFailingPixels
   3657 		<< TestLog::EndMessage;
   3658 
   3659 	if (numFailingPixels > maxAllowedInvalidPixels)
   3660 	{
   3661 		log << TestLog::Message
   3662 			<< "Image comparison failed. Color threshold = (" << compareThreshold.x() << ", " << compareThreshold.y() << ", " << compareThreshold.z() << ")"
   3663 			<< TestLog::EndMessage
   3664 			<< TestLog::ImageSet(imageSetName, imageSetDesc)
   3665 			<< TestLog::Image("Result",		"Result",		result)
   3666 			<< TestLog::Image("Reference",	"Reference",	reference)
   3667 			<< TestLog::Image("ErrorMask",	"Error mask",	errorMask)
   3668 			<< TestLog::EndImageSet;
   3669 
   3670 		return false;
   3671 	}
   3672 	else
   3673 	{
   3674 		log << TestLog::ImageSet(imageSetName, imageSetDesc)
   3675 			<< TestLog::Image("Result", "Result", result)
   3676 			<< TestLog::EndImageSet;
   3677 
   3678 		return true;
   3679 	}
   3680 }
   3681 
   3682 static bool intersectionRelaxedLineImageCompare (tcu::TestLog& log, const char* imageSetName, const char* imageSetDesc, const tcu::Surface& reference, const tcu::Surface& result, const tcu::IVec3& compareThreshold, int maxAllowedInvalidPixels)
   3683 {
   3684 	DE_ASSERT(result.getWidth() == reference.getWidth() && result.getHeight() == reference.getHeight());
   3685 
   3686 	const tcu::IVec4	green						(0, 255, 0, 255);
   3687 	const tcu::IVec4	errorColor					(255, 0, 0, 255);
   3688 	const int			width						= reference.getWidth();
   3689 	const int			height						= reference.getHeight();
   3690 	tcu::TextureLevel	errorMask					(tcu::TextureFormat(tcu::TextureFormat::RGB, tcu::TextureFormat::UNORM_INT8), width, height);
   3691 	int					numFailingPixels			= 0;
   3692 
   3693 	// clear errormask edges which would otherwise be transparent
   3694 
   3695 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), 0,			0,			width,	1),			green);
   3696 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), 0,			height-1,	width,	1),			green);
   3697 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), 0,			0,			1,		height),	green);
   3698 	tcu::clear(tcu::getSubregion(errorMask.getAccess(), width-1,	0,			1,		height),	green);
   3699 
   3700 	// skip edge pixels since coverage on edge cannot be verified
   3701 
   3702 	for (int y = 1; y < height - 1; ++y)
   3703 	for (int x = 1; x < width - 1; ++x)
   3704 	{
   3705 		const tcu::RGBA	refPixel			= reference.getPixel(x, y);
   3706 		const tcu::RGBA	screenPixel			= result.getPixel(x, y);
   3707 		const bool		isOkScreenPixel		= pixelNeighborhoodContainsColor(reference, x, y, screenPixel, compareThreshold);	// reference image has a matching pixel nearby (~= If something is drawn on screen, it must be drawn to reference too.)
   3708 		const bool		isOkReferencePixel	= pixelNeighborhoodContainsColor(result, x, y, refPixel, compareThreshold);			// screen image has a matching pixel nearby (~= If something is drawn on reference, it must be drawn to screen too.)
   3709 
   3710 		if (isOkScreenPixel && isOkReferencePixel)
   3711 		{
   3712 			// pixel valid, write greenish pixels to make the result image easier to read
   3713 			const deUint32 grayscaleValue = getVisualizationGrayscaleColor(screenPixel);
   3714 			errorMask.getAccess().setPixel(tcu::UVec4(grayscaleValue, 255, grayscaleValue, 255), x, y);
   3715 		}
   3716 		else if (!pixelNearLineIntersection(x, y, reference) &&
   3717 				 !pixelNearLineIntersection(x, y, result))
   3718 		{
   3719 			// non-intersection pixel values must be within threshold of the reference values
   3720 			errorMask.getAccess().setPixel(errorColor, x, y);
   3721 			++numFailingPixels;
   3722 		}
   3723 		else
   3724 		{
   3725 			// pixel is near a line intersection
   3726 			// we are on/near an edge, verify only coverage (coverage == not background colored)
   3727 			const bool	referenceCoverage		= !isBlack(refPixel);
   3728 			const bool	screenCoverage			= !isBlack(screenPixel);
   3729 			const bool	isOkScreenCoverage		= pixelNeighborhoodContainsCoverage(reference, x, y, screenCoverage);	// Check screen pixels against reference pixel
   3730 			const bool	isOkReferenceCoverage	= pixelNeighborhoodContainsCoverage(result, x, y, referenceCoverage);	// Check reference pixel against screen pixel
   3731 
   3732 			if (isOkScreenCoverage && isOkReferenceCoverage)
   3733 			{
   3734 				// pixel valid, write greenish pixels to make the result image easier to read
   3735 				const deUint32 grayscaleValue = getVisualizationGrayscaleColor(screenPixel);
   3736 				errorMask.getAccess().setPixel(tcu::UVec4(grayscaleValue, 255, grayscaleValue, 255), x, y);
   3737 			}
   3738 			else
   3739 			{
   3740 				// coverage does not match
   3741 				errorMask.getAccess().setPixel(errorColor, x, y);
   3742 				++numFailingPixels;
   3743 			}
   3744 		}
   3745 	}
   3746 
   3747 	log	<< TestLog::Message
   3748 		<< "Comparing images:\n"
   3749 		<< "\tallowed deviation in pixel positions = 1\n"
   3750 		<< "\tnumber of allowed invalid pixels = " << maxAllowedInvalidPixels << "\n"
   3751 		<< "\tnumber of invalid pixels = " << numFailingPixels
   3752 		<< TestLog::EndMessage;
   3753 
   3754 	if (numFailingPixels > maxAllowedInvalidPixels)
   3755 	{
   3756 		log << TestLog::Message
   3757 			<< "Image comparison failed. Color threshold = (" << compareThreshold.x() << ", " << compareThreshold.y() << ", " << compareThreshold.z() << ")"
   3758 			<< TestLog::EndMessage
   3759 			<< TestLog::ImageSet(imageSetName, imageSetDesc)
   3760 			<< TestLog::Image("Result",		"Result",		result)
   3761 			<< TestLog::Image("Reference",	"Reference",	reference)
   3762 			<< TestLog::Image("ErrorMask",	"Error mask",	errorMask)
   3763 			<< TestLog::EndImageSet;
   3764 
   3765 		return false;
   3766 	}
   3767 	else
   3768 	{
   3769 		log << TestLog::ImageSet(imageSetName, imageSetDesc)
   3770 			<< TestLog::Image("Result", "Result", result)
   3771 			<< TestLog::EndImageSet;
   3772 
   3773 		return true;
   3774 	}
   3775 }
   3776 
   3777 bool DrawTest::compare (gls::DrawTestSpec::Primitive primitiveType)
   3778 {
   3779 	const tcu::Surface&	ref		= m_rrArrayPack->getSurface();
   3780 	const tcu::Surface&	screen	= m_glArrayPack->getSurface();
   3781 
   3782 	if (m_renderCtx.getRenderTarget().getNumSamples() > 1)
   3783 	{
   3784 		// \todo [mika] Improve compare when using multisampling
   3785 		m_testCtx.getLog() << tcu::TestLog::Message << "Warning: Comparision of result from multisample render targets are not as stricts as without multisampling. Might produce false positives!" << tcu::TestLog::EndMessage;
   3786 		return tcu::fuzzyCompare(m_testCtx.getLog(), "Compare Results", "Compare Results", ref.getAccess(), screen.getAccess(), 0.3f, tcu::COMPARE_LOG_RESULT);
   3787 	}
   3788 	else
   3789 	{
   3790 		const PrimitiveClass primitiveClass = getDrawPrimitiveClass(primitiveType);
   3791 
   3792 		switch (primitiveClass)
   3793 		{
   3794 			case PRIMITIVECLASS_POINT:
   3795 			{
   3796 				// Point are extremely unlikely to have overlapping regions, don't allow any no extra / missing pixels
   3797 				const int maxAllowedInvalidPixelsWithPoints = 0;
   3798 				return tcu::intThresholdPositionDeviationErrorThresholdCompare(m_testCtx.getLog(),
   3799 																			   "CompareResult",
   3800 																			   "Result of rendering",
   3801 																			   ref.getAccess(),
   3802 																			   screen.getAccess(),
   3803 																			   tcu::UVec4(m_maxDiffRed, m_maxDiffGreen, m_maxDiffBlue, 256),
   3804 																			   tcu::IVec3(1, 1, 0),					//!< 3x3 search kernel
   3805 																			   true,								//!< relax comparison on the image boundary
   3806 																			   maxAllowedInvalidPixelsWithPoints,	//!< error threshold
   3807 																			   tcu::COMPARE_LOG_RESULT);
   3808 			}
   3809 
   3810 			case PRIMITIVECLASS_LINE:
   3811 			{
   3812 				// Lines can potentially have a large number of overlapping pixels. Pixel comparison may potentially produce
   3813 				// false negatives in such pixels if for example the pixel in question is overdrawn by another line in the
   3814 				// reference image but not in the resultin image. Relax comparison near line intersection points (areas) and
   3815 				// compare only coverage, not color, in such pixels
   3816 				const int maxAllowedInvalidPixelsWithLines = 5; // line are allowed to have a few bad pixels
   3817 				return intersectionRelaxedLineImageCompare(m_testCtx.getLog(),
   3818 														   "CompareResult",
   3819 														   "Result of rendering",
   3820 														   ref,
   3821 														   screen,
   3822 														   tcu::IVec3(m_maxDiffRed, m_maxDiffGreen, m_maxDiffBlue),
   3823 														   maxAllowedInvalidPixelsWithLines);
   3824 			}
   3825 
   3826 			case PRIMITIVECLASS_TRIANGLE:
   3827 			{
   3828 				// Triangles are likely to partially or fully overlap. Pixel difference comparison is fragile in pixels
   3829 				// where there could be potential overlapping since the  pixels might be covered by one triangle in the
   3830 				// reference image and by the other in the result image. Relax comparsion near primitive edges and
   3831 				// compare only coverage, not color, in such pixels.
   3832 				const int			maxAllowedInvalidPixelsWithTriangles	= 10;
   3833 				const tcu::IVec3	renderTargetThreshold					= m_renderCtx.getRenderTarget().getPixelFormat().getColorThreshold().toIVec().xyz();
   3834 
   3835 				return edgeRelaxedImageCompare(m_testCtx.getLog(),
   3836 											   "CompareResult",
   3837 											   "Result of rendering",
   3838 											   ref,
   3839 											   screen,
   3840 											   tcu::IVec3(m_maxDiffRed, m_maxDiffGreen, m_maxDiffBlue),
   3841 											   renderTargetThreshold,
   3842 											   maxAllowedInvalidPixelsWithTriangles);
   3843 			}
   3844 
   3845 			default:
   3846 				DE_ASSERT(false);
   3847 				return false;
   3848 		}
   3849 	}
   3850 }
   3851 
   3852 float DrawTest::getCoordScale (const DrawTestSpec& spec) const
   3853 {
   3854 	float maxValue = 1.0f;
   3855 
   3856 	for (int arrayNdx = 0; arrayNdx < (int)spec.attribs.size(); arrayNdx++)
   3857 	{
   3858 		DrawTestSpec::AttributeSpec attribSpec		= spec.attribs[arrayNdx];
   3859 		const bool					isPositionAttr	= (arrayNdx == 0) || (attribSpec.additionalPositionAttribute);
   3860 		float						attrMaxValue	= 0;
   3861 
   3862 		if (!isPositionAttr)
   3863 			continue;
   3864 
   3865 		if (attribSpec.inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10)
   3866 		{
   3867 			if (attribSpec.normalize)
   3868 				attrMaxValue += 1.0f;
   3869 			else
   3870 				attrMaxValue += 1024.0;
   3871 		}
   3872 		else if (attribSpec.inputType == DrawTestSpec::INPUTTYPE_INT_2_10_10_10)
   3873 		{
   3874 			if (attribSpec.normalize)
   3875 				attrMaxValue += 1.0f;
   3876 			else
   3877 				attrMaxValue += 512.0;
   3878 		}
   3879 		else
   3880 		{
   3881 			const float max = GLValue::getMaxValue(attribSpec.inputType).toFloat();
   3882 
   3883 			attrMaxValue += (attribSpec.normalize && !inputTypeIsFloatType(attribSpec.inputType)) ? (1.0f) : (max * 1.1f);
   3884 		}
   3885 
   3886 		if (attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_VEC3 || attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_VEC4
   3887 			|| attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_IVEC3 || attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_IVEC4
   3888 			|| attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_UVEC3 || attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_UVEC4)
   3889 				attrMaxValue *= 2;
   3890 
   3891 		maxValue += attrMaxValue;
   3892 	}
   3893 
   3894 	return 1.0f / maxValue;
   3895 }
   3896 
   3897 float DrawTest::getColorScale (const DrawTestSpec& spec) const
   3898 {
   3899 	float colorScale = 1.0f;
   3900 
   3901 	for (int arrayNdx = 1; arrayNdx < (int)spec.attribs.size(); arrayNdx++)
   3902 	{
   3903 		DrawTestSpec::AttributeSpec attribSpec		= spec.attribs[arrayNdx];
   3904 		const bool					isPositionAttr	= (arrayNdx == 0) || (attribSpec.additionalPositionAttribute);
   3905 
   3906 		if (isPositionAttr)
   3907 			continue;
   3908 
   3909 		if (attribSpec.inputType == DrawTestSpec::INPUTTYPE_UNSIGNED_INT_2_10_10_10)
   3910 		{
   3911 			if (!attribSpec.normalize)
   3912 				colorScale *= 1.0 / 1024.0;
   3913 		}
   3914 		else if (attribSpec.inputType == DrawTestSpec::INPUTTYPE_INT_2_10_10_10)
   3915 		{
   3916 			if (!attribSpec.normalize)
   3917 				colorScale *= 1.0 / 512.0;
   3918 		}
   3919 		else
   3920 		{
   3921 			const float max = GLValue::getMaxValue(attribSpec.inputType).toFloat();
   3922 
   3923 			colorScale *= (attribSpec.normalize && !inputTypeIsFloatType(attribSpec.inputType) ? 1.0f : float(1.0 / double(max)));
   3924 			if (attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_VEC4 ||
   3925 				attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_UVEC4 ||
   3926 				attribSpec.outputType == DrawTestSpec::OUTPUTTYPE_IVEC4)
   3927 				colorScale *= (attribSpec.normalize && !inputTypeIsFloatType(attribSpec.inputType) ? 1.0f : float(1.0 / double(max)));
   3928 		}
   3929 	}
   3930 
   3931 	return colorScale;
   3932 }
   3933 
   3934 } // gls
   3935 } // deqp
   3936