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      1 /*-------------------------------------------------------------------------
      2  * drawElements Quality Program OpenGL ES Utilities
      3  * ------------------------------------------------
      4  *
      5  * Copyright 2015 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 Shader .test file utilities.
     22  *//*--------------------------------------------------------------------*/
     23 
     24 #include "gluShaderLibrary.hpp"
     25 
     26 #include "tcuStringTemplate.hpp"
     27 #include "tcuResource.hpp"
     28 #include "tcuTestLog.hpp"
     29 
     30 #include "deStringUtil.hpp"
     31 #include "deUniquePtr.hpp"
     32 #include "deFilePath.hpp"
     33 
     34 #include "glwEnums.hpp"
     35 
     36 #include <sstream>
     37 #include <map>
     38 #include <cstdlib>
     39 
     40 #if 0
     41 #	define PARSE_DBG(X) printf X
     42 #else
     43 #	define PARSE_DBG(X) DE_NULL_STATEMENT
     44 #endif
     45 
     46 namespace glu
     47 {
     48 namespace sl
     49 {
     50 
     51 using namespace tcu;
     52 
     53 using std::vector;
     54 using std::string;
     55 using std::map;
     56 using std::ostringstream;
     57 using std::pair;
     58 using de::UniquePtr;
     59 
     60 // Specification
     61 
     62 bool isValid (const ValueBlock& block)
     63 {
     64 	for (size_t storageNdx = 0; storageNdx < 3; ++storageNdx)
     65 	{
     66 		const vector<Value>&	values		= storageNdx == 0 ? block.inputs	:
     67 											  storageNdx == 1 ? block.outputs	:
     68 																block.uniforms;
     69 		const size_t			refArrayLen	= values.empty() ? 0 : (values[0].elements.size() / (size_t)values[0].type.getScalarSize());
     70 
     71 		for (size_t valNdx = 0; valNdx < values.size(); ++valNdx)
     72 		{
     73 			const Value&	value	= values[valNdx];
     74 
     75 			if (!value.type.isBasicType())
     76 			{
     77 				print("ERROR: Value '%s' is of unsupported type!\n", value.name.c_str());
     78 				return false;
     79 			}
     80 
     81 			if (value.elements.size() != refArrayLen*(size_t)value.type.getScalarSize())
     82 			{
     83 				print("ERROR: Value '%s' has invalid number of scalars!\n", value.name.c_str());
     84 				return false;
     85 			}
     86 		}
     87 	}
     88 
     89 	return true;
     90 }
     91 
     92 bool isValid (const ShaderCaseSpecification& spec)
     93 {
     94 	const deUint32	vtxFragMask			= (1u << SHADERTYPE_VERTEX)
     95 										| (1u << SHADERTYPE_FRAGMENT);
     96 	const deUint32	tessCtrlEvalMask	= (1u << SHADERTYPE_TESSELLATION_CONTROL)
     97 										| (1u << SHADERTYPE_TESSELLATION_EVALUATION);
     98 	const deUint32	supportedStageMask	= vtxFragMask | tessCtrlEvalMask
     99 										| (1u << SHADERTYPE_GEOMETRY);
    100 	const bool		isSeparable			= !spec.programs.empty() && spec.programs[0].sources.separable;
    101 
    102 	if (spec.programs.empty())
    103 	{
    104 		print("ERROR: No programs specified!\n");
    105 		return false;
    106 	}
    107 
    108 	if (isCapabilityRequired(CAPABILITY_FULL_GLSL_ES_100_SUPPORT, spec))
    109 	{
    110 		if (spec.targetVersion != GLSL_VERSION_100_ES)
    111 		{
    112 			print("ERROR: Full GLSL ES 1.00 support requested for other GLSL version!\n");
    113 			return false;
    114 		}
    115 
    116 		if (spec.expectResult != EXPECT_PASS			&&
    117 			spec.expectResult != EXPECT_VALIDATION_FAIL	&&
    118 			spec.expectResult != EXPECT_BUILD_SUCCESSFUL)
    119 		{
    120 			print("ERROR: Full GLSL ES 1.00 support doesn't make sense when expecting compile/link failure!\n");
    121 			return false;
    122 		}
    123 	}
    124 
    125 	if (!de::inBounds(spec.caseType, (CaseType)0, CASETYPE_LAST))
    126 	{
    127 		print("ERROR: Invalid case type!\n");
    128 		return false;
    129 	}
    130 
    131 	if (!de::inBounds(spec.expectResult, (ExpectResult)0, EXPECT_LAST))
    132 	{
    133 		print("ERROR: Invalid expected result!\n");
    134 		return false;
    135 	}
    136 
    137 	if (!isValid(spec.values))
    138 		return false;
    139 
    140 	if (!spec.values.inputs.empty() && !spec.values.outputs.empty() &&
    141 		spec.values.inputs[0].elements.size() / spec.values.inputs[0].type.getScalarSize() != spec.values.outputs[0].elements.size() / spec.values.outputs[0].type.getScalarSize())
    142 	{
    143 		print("ERROR: Number of input and output elements don't match!\n");
    144 		return false;
    145 	}
    146 
    147 	if (isSeparable)
    148 	{
    149 		deUint32	usedStageMask	= 0u;
    150 
    151 		if (spec.caseType != CASETYPE_COMPLETE)
    152 		{
    153 			print("ERROR: Separable shaders supported only for complete cases!\n");
    154 			return false;
    155 		}
    156 
    157 		for (size_t progNdx = 0; progNdx < spec.programs.size(); ++progNdx)
    158 		{
    159 			for (int shaderStageNdx = 0; shaderStageNdx < SHADERTYPE_LAST; ++shaderStageNdx)
    160 			{
    161 				const deUint32	curStageMask	= (1u << shaderStageNdx);
    162 
    163 				if (supportedStageMask & curStageMask)
    164 				{
    165 					const bool		hasShader	= !spec.programs[progNdx].sources.sources[shaderStageNdx].empty();
    166 					const bool		isEnabled	= (spec.programs[progNdx].activeStages & curStageMask) != 0;
    167 
    168 					if (hasShader != isEnabled)
    169 					{
    170 						print("ERROR: Inconsistent source/enable for shader stage %s!\n", getShaderTypeName((ShaderType)shaderStageNdx));
    171 						return false;
    172 					}
    173 
    174 					if (hasShader && (usedStageMask & curStageMask) != 0)
    175 					{
    176 						print("ERROR: Stage %s enabled on multiple programs!\n", getShaderTypeName((ShaderType)shaderStageNdx));
    177 						return false;
    178 					}
    179 
    180 					if (isEnabled)
    181 						usedStageMask |= curStageMask;
    182 				}
    183 				else if (!spec.programs[progNdx].sources.sources[shaderStageNdx].empty())
    184 				{
    185 					print("ERROR: Source specified for unsupported shader stage %s!\n", getShaderTypeName((ShaderType)shaderStageNdx));
    186 					return false;
    187 				}
    188 			}
    189 		}
    190 
    191 		if ((usedStageMask & vtxFragMask) != vtxFragMask)
    192 		{
    193 			print("ERROR: Vertex and fragment shaders are mandatory!\n");
    194 			return false;
    195 		}
    196 
    197 		if ((usedStageMask & tessCtrlEvalMask) != 0 && (usedStageMask & tessCtrlEvalMask) != tessCtrlEvalMask)
    198 		{
    199 			print("ERROR: Both tessellation control and eval shaders must be either enabled or disabled!\n");
    200 			return false;
    201 		}
    202 	}
    203 	else
    204 	{
    205 		const bool	hasVertex		= !spec.programs[0].sources.sources[SHADERTYPE_VERTEX].empty();
    206 		const bool	hasFragment		= !spec.programs[0].sources.sources[SHADERTYPE_FRAGMENT].empty();
    207 
    208 		if (spec.programs.size() != 1)
    209 		{
    210 			print("ERROR: Only cases using separable programs can have multiple programs!\n");
    211 			return false;
    212 		}
    213 
    214 		if (spec.caseType == CASETYPE_VERTEX_ONLY && (!hasVertex || hasFragment))
    215 		{
    216 			print("ERROR: Vertex-only case must have only vertex shader!\n");
    217 			return false;
    218 		}
    219 
    220 		if (spec.caseType == CASETYPE_FRAGMENT_ONLY && (hasVertex || !hasFragment))
    221 		{
    222 			print("ERROR: Fragment-only case must have only fragment shader!\n");
    223 			return false;
    224 		}
    225 
    226 		if (spec.caseType == CASETYPE_COMPLETE && (!hasVertex || !hasFragment))
    227 		{
    228 			print("ERROR: Complete case must have at least vertex and fragment shaders\n");
    229 			return false;
    230 		}
    231 	}
    232 
    233 	return true;
    234 }
    235 
    236 bool isCapabilityRequired(CapabilityFlag capabilityFlag, const ShaderCaseSpecification& spec)
    237 {
    238 	std::vector<RequiredCapability>::const_iterator currRequirement = spec.requiredCaps.begin();
    239 	while (currRequirement != spec.requiredCaps.end())
    240 	{
    241 		if ((currRequirement->type == CAPABILITY_FLAG) && (currRequirement->flagName == capabilityFlag))
    242 			return true;
    243 		++currRequirement;
    244 	}
    245 
    246 	return false;
    247 }
    248 
    249 // Parser
    250 
    251 static const glu::GLSLVersion DEFAULT_GLSL_VERSION = glu::GLSL_VERSION_100_ES;
    252 
    253 DE_INLINE deBool isWhitespace (char c)
    254 {
    255 	return (c == ' ') || (c == '\t') || (c == '\r') || (c == '\n');
    256 }
    257 
    258 DE_INLINE deBool isEOL (char c)
    259 {
    260 	return (c == '\r') || (c == '\n');
    261 }
    262 
    263 DE_INLINE deBool isNumeric (char c)
    264 {
    265 	return deInRange32(c, '0', '9');
    266 }
    267 
    268 DE_INLINE deBool isAlpha (char c)
    269 {
    270 	return deInRange32(c, 'a', 'z') || deInRange32(c, 'A', 'Z');
    271 }
    272 
    273 DE_INLINE deBool isCaseNameChar (char c)
    274 {
    275 	return deInRange32(c, 'a', 'z') || deInRange32(c, 'A', 'Z') || deInRange32(c, '0', '9') || (c == '_') || (c == '-') || (c == '.');
    276 }
    277 
    278 class ShaderParser
    279 {
    280 public:
    281 							ShaderParser			(const tcu::Archive& archive, const std::string& filename, ShaderCaseFactory* caseFactory);
    282 							~ShaderParser			(void);
    283 
    284 	vector<tcu::TestNode*>	parse					(void);
    285 
    286 private:
    287 	enum Token
    288 	{
    289 		TOKEN_INVALID = 0,
    290 		TOKEN_EOF,
    291 		TOKEN_STRING,
    292 		TOKEN_SHADER_SOURCE,
    293 
    294 		TOKEN_INT_LITERAL,
    295 		TOKEN_FLOAT_LITERAL,
    296 
    297 		// identifiers
    298 		TOKEN_IDENTIFIER,
    299 		TOKEN_TRUE,
    300 		TOKEN_FALSE,
    301 		TOKEN_DESC,
    302 		TOKEN_EXPECT,
    303 		TOKEN_GROUP,
    304 		TOKEN_CASE,
    305 		TOKEN_END,
    306 		TOKEN_OUTPUT_COLOR,
    307 		TOKEN_FORMAT,
    308 		TOKEN_VALUES,
    309 		TOKEN_BOTH,
    310 		TOKEN_VERTEX,
    311 		TOKEN_FRAGMENT,
    312 		TOKEN_UNIFORM,
    313 		TOKEN_INPUT,
    314 		TOKEN_OUTPUT,
    315 		TOKEN_FLOAT,
    316 		TOKEN_FLOAT_VEC2,
    317 		TOKEN_FLOAT_VEC3,
    318 		TOKEN_FLOAT_VEC4,
    319 		TOKEN_FLOAT_MAT2,
    320 		TOKEN_FLOAT_MAT2X3,
    321 		TOKEN_FLOAT_MAT2X4,
    322 		TOKEN_FLOAT_MAT3X2,
    323 		TOKEN_FLOAT_MAT3,
    324 		TOKEN_FLOAT_MAT3X4,
    325 		TOKEN_FLOAT_MAT4X2,
    326 		TOKEN_FLOAT_MAT4X3,
    327 		TOKEN_FLOAT_MAT4,
    328 		TOKEN_INT,
    329 		TOKEN_INT_VEC2,
    330 		TOKEN_INT_VEC3,
    331 		TOKEN_INT_VEC4,
    332 		TOKEN_UINT,
    333 		TOKEN_UINT_VEC2,
    334 		TOKEN_UINT_VEC3,
    335 		TOKEN_UINT_VEC4,
    336 		TOKEN_BOOL,
    337 		TOKEN_BOOL_VEC2,
    338 		TOKEN_BOOL_VEC3,
    339 		TOKEN_BOOL_VEC4,
    340 		TOKEN_VERSION,
    341 		TOKEN_TESSELLATION_CONTROL,
    342 		TOKEN_TESSELLATION_EVALUATION,
    343 		TOKEN_GEOMETRY,
    344 		TOKEN_REQUIRE,
    345 		TOKEN_IN,
    346 		TOKEN_IMPORT,
    347 		TOKEN_PIPELINE_PROGRAM,
    348 		TOKEN_ACTIVE_STAGES,
    349 
    350 		// symbols
    351 		TOKEN_ASSIGN,
    352 		TOKEN_PLUS,
    353 		TOKEN_MINUS,
    354 		TOKEN_COMMA,
    355 		TOKEN_VERTICAL_BAR,
    356 		TOKEN_SEMI_COLON,
    357 		TOKEN_LEFT_PAREN,
    358 		TOKEN_RIGHT_PAREN,
    359 		TOKEN_LEFT_BRACKET,
    360 		TOKEN_RIGHT_BRACKET,
    361 		TOKEN_LEFT_BRACE,
    362 		TOKEN_RIGHT_BRACE,
    363 		TOKEN_GREATER,
    364 
    365 		TOKEN_LAST
    366 	};
    367 
    368 	void						parseError					(const std::string& errorStr);
    369 	float						parseFloatLiteral			(const char* str);
    370 	int							parseIntLiteral				(const char* str);
    371 	string						parseStringLiteral			(const char* str);
    372 	string						parseShaderSource			(const char* str);
    373 	void						advanceToken				(void);
    374 	void						advanceToken				(Token assumed);
    375 	void						assumeToken					(Token token);
    376 	DataType					mapDataTypeToken			(Token token);
    377 	const char*					getTokenName				(Token token);
    378 	deUint32					getShaderStageLiteralFlag	(void);
    379 	deUint32					getGLEnumFromName			(const std::string& enumName);
    380 
    381 	void						parseValueElement			(DataType dataType, Value& result);
    382 	void						parseValue					(ValueBlock& valueBlock);
    383 	void						parseValueBlock				(ValueBlock& valueBlock);
    384 	deUint32					parseShaderStageList		(void);
    385 	void						parseRequirement			(vector<RequiredCapability> &requiredCaps, vector<RequiredExtension> &requiredExts);
    386 	void						parseExpectResult			(ExpectResult& expectResult);
    387 	void						parseFormat					(DataType& format);
    388 	void						parseGLSLVersion			(glu::GLSLVersion& version);
    389 	void						parsePipelineProgram		(ProgramSpecification& program);
    390 	void						parseShaderCase				(vector<tcu::TestNode*>& shaderNodeList);
    391 	void						parseShaderGroup			(vector<tcu::TestNode*>& shaderNodeList);
    392 	void						parseImport					(vector<tcu::TestNode*>& shaderNodeList);
    393 
    394 	const tcu::Archive&			m_archive;
    395 	const string				m_filename;
    396 	ShaderCaseFactory* const	m_caseFactory;
    397 
    398 	UniquePtr<tcu::Resource>	m_resource;
    399 	vector<char>				m_input;
    400 
    401 	const char*					m_curPtr;
    402 	Token						m_curToken;
    403 	std::string					m_curTokenStr;
    404 };
    405 
    406 ShaderParser::ShaderParser (const tcu::Archive& archive, const string& filename, ShaderCaseFactory* caseFactroy)
    407 	: m_archive			(archive)
    408 	, m_filename		(filename)
    409 	, m_caseFactory		(caseFactroy)
    410 	, m_resource		(archive.getResource(m_filename.c_str()))
    411 	, m_curPtr			(DE_NULL)
    412 	, m_curToken		(TOKEN_LAST)
    413 {
    414 }
    415 
    416 ShaderParser::~ShaderParser (void)
    417 {
    418 }
    419 
    420 void ShaderParser::parseError (const std::string& errorStr)
    421 {
    422 	string atStr = string(m_curPtr, 80);
    423 	throw tcu::InternalError((string("Parser error: ") + errorStr + " near '" + atStr + " ...'").c_str(), DE_NULL, __FILE__, __LINE__);
    424 }
    425 
    426 float ShaderParser::parseFloatLiteral (const char* str)
    427 {
    428 	return (float)atof(str);
    429 }
    430 
    431 int ShaderParser::parseIntLiteral (const char* str)
    432 {
    433 	return atoi(str);
    434 }
    435 
    436 string ShaderParser::parseStringLiteral (const char* str)
    437 {
    438 	const char*		p		= str;
    439 	char			endChar = *p++;
    440 	ostringstream	o;
    441 
    442 	while (*p != endChar && *p)
    443 	{
    444 		if (*p == '\\')
    445 		{
    446 			switch (p[1])
    447 			{
    448 				case 0:		DE_ASSERT(DE_FALSE);	break;
    449 				case 'n':	o << '\n';				break;
    450 				case 't':	o << '\t';				break;
    451 				default:	o << p[1];				break;
    452 			}
    453 
    454 			p += 2;
    455 		}
    456 		else
    457 			o << *p++;
    458 	}
    459 
    460 	return o.str();
    461 }
    462 
    463 static string removeExtraIndentation (const string& source)
    464 {
    465 	// Detect indentation from first line.
    466 	int numIndentChars = 0;
    467 	for (int ndx = 0; ndx < (int)source.length() && isWhitespace(source[ndx]); ndx++)
    468 		numIndentChars += source[ndx] == '\t' ? 4 : 1;
    469 
    470 	// Process all lines and remove preceding indentation.
    471 	ostringstream processed;
    472 	{
    473 		bool	atLineStart			= true;
    474 		int		indentCharsOmitted	= 0;
    475 
    476 		for (int pos = 0; pos < (int)source.length(); pos++)
    477 		{
    478 			char c = source[pos];
    479 
    480 			if (atLineStart && indentCharsOmitted < numIndentChars && (c == ' ' || c == '\t'))
    481 			{
    482 				indentCharsOmitted += c == '\t' ? 4 : 1;
    483 			}
    484 			else if (isEOL(c))
    485 			{
    486 				if (source[pos] == '\r' && source[pos+1] == '\n')
    487 				{
    488 					pos += 1;
    489 					processed << '\n';
    490 				}
    491 				else
    492 					processed << c;
    493 
    494 				atLineStart			= true;
    495 				indentCharsOmitted	= 0;
    496 			}
    497 			else
    498 			{
    499 				processed << c;
    500 				atLineStart = false;
    501 			}
    502 		}
    503 	}
    504 
    505 	return processed.str();
    506 }
    507 
    508 string ShaderParser::parseShaderSource (const char* str)
    509 {
    510 	const char*		p = str+2;
    511 	ostringstream	o;
    512 
    513 	// Eat first empty line from beginning.
    514 	while (*p == ' ') p++;
    515 	if (*p == '\r') p++;
    516 	if (*p == '\n') p++;
    517 
    518 	while ((p[0] != '"') || (p[1] != '"'))
    519 	{
    520 		if (*p == '\\')
    521 		{
    522 			switch (p[1])
    523 			{
    524 				case 0:		DE_ASSERT(DE_FALSE);	break;
    525 				case 'n':	o << '\n';				break;
    526 				case 't':	o << '\t';				break;
    527 				default:	o << p[1];				break;
    528 			}
    529 
    530 			p += 2;
    531 		}
    532 		else
    533 			o << *p++;
    534 	}
    535 
    536 	return removeExtraIndentation(o.str());
    537 }
    538 
    539 void ShaderParser::advanceToken (void)
    540 {
    541 	// Skip old token.
    542 	m_curPtr += m_curTokenStr.length();
    543 
    544 	// Reset token (for safety).
    545 	m_curToken		= TOKEN_INVALID;
    546 	m_curTokenStr	= "";
    547 
    548 	// Eat whitespace & comments while they last.
    549 	for (;;)
    550 	{
    551 		while (isWhitespace(*m_curPtr))
    552 			m_curPtr++;
    553 
    554 		// Check for EOL comment.
    555 		if (*m_curPtr == '#')
    556 		{
    557 			while (*m_curPtr && !isEOL(*m_curPtr))
    558 				m_curPtr++;
    559 		}
    560 		else
    561 			break;
    562 	}
    563 
    564 	if (!*m_curPtr)
    565 	{
    566 		m_curToken = TOKEN_EOF;
    567 		m_curTokenStr = "<EOF>";
    568 	}
    569 	else if (isAlpha(*m_curPtr))
    570 	{
    571 		struct Named
    572 		{
    573 			const char*		str;
    574 			Token			token;
    575 		};
    576 
    577 		static const Named s_named[] =
    578 		{
    579 			{ "true",						TOKEN_TRUE						},
    580 			{ "false",						TOKEN_FALSE						},
    581 			{ "desc",						TOKEN_DESC						},
    582 			{ "expect",						TOKEN_EXPECT					},
    583 			{ "group",						TOKEN_GROUP						},
    584 			{ "case",						TOKEN_CASE						},
    585 			{ "end",						TOKEN_END						},
    586 			{ "output_color",				TOKEN_OUTPUT_COLOR				},
    587 			{ "format",						TOKEN_FORMAT					},
    588 			{ "values",						TOKEN_VALUES					},
    589 			{ "both",						TOKEN_BOTH						},
    590 			{ "vertex",						TOKEN_VERTEX					},
    591 			{ "fragment",					TOKEN_FRAGMENT					},
    592 			{ "uniform",					TOKEN_UNIFORM					},
    593 			{ "input",						TOKEN_INPUT						},
    594 			{ "output",						TOKEN_OUTPUT					},
    595 			{ "float",						TOKEN_FLOAT						},
    596 			{ "vec2",						TOKEN_FLOAT_VEC2				},
    597 			{ "vec3",						TOKEN_FLOAT_VEC3				},
    598 			{ "vec4",						TOKEN_FLOAT_VEC4				},
    599 			{ "mat2",						TOKEN_FLOAT_MAT2				},
    600 			{ "mat2x3",						TOKEN_FLOAT_MAT2X3				},
    601 			{ "mat2x4",						TOKEN_FLOAT_MAT2X4				},
    602 			{ "mat3x2",						TOKEN_FLOAT_MAT3X2				},
    603 			{ "mat3",						TOKEN_FLOAT_MAT3				},
    604 			{ "mat3x4",						TOKEN_FLOAT_MAT3X4				},
    605 			{ "mat4x2",						TOKEN_FLOAT_MAT4X2				},
    606 			{ "mat4x3",						TOKEN_FLOAT_MAT4X3				},
    607 			{ "mat4",						TOKEN_FLOAT_MAT4				},
    608 			{ "int",						TOKEN_INT						},
    609 			{ "ivec2",						TOKEN_INT_VEC2					},
    610 			{ "ivec3",						TOKEN_INT_VEC3					},
    611 			{ "ivec4",						TOKEN_INT_VEC4					},
    612 			{ "uint",						TOKEN_UINT						},
    613 			{ "uvec2",						TOKEN_UINT_VEC2					},
    614 			{ "uvec3",						TOKEN_UINT_VEC3					},
    615 			{ "uvec4",						TOKEN_UINT_VEC4					},
    616 			{ "bool",						TOKEN_BOOL						},
    617 			{ "bvec2",						TOKEN_BOOL_VEC2					},
    618 			{ "bvec3",						TOKEN_BOOL_VEC3					},
    619 			{ "bvec4",						TOKEN_BOOL_VEC4					},
    620 			{ "version",					TOKEN_VERSION					},
    621 			{ "tessellation_control",		TOKEN_TESSELLATION_CONTROL		},
    622 			{ "tessellation_evaluation",	TOKEN_TESSELLATION_EVALUATION	},
    623 			{ "geometry",					TOKEN_GEOMETRY					},
    624 			{ "require",					TOKEN_REQUIRE					},
    625 			{ "in",							TOKEN_IN						},
    626 			{ "import",						TOKEN_IMPORT					},
    627 			{ "pipeline_program",			TOKEN_PIPELINE_PROGRAM			},
    628 			{ "active_stages",				TOKEN_ACTIVE_STAGES				},
    629 		};
    630 
    631 		const char* end = m_curPtr + 1;
    632 		while (isCaseNameChar(*end))
    633 			end++;
    634 		m_curTokenStr = string(m_curPtr, end - m_curPtr);
    635 
    636 		m_curToken = TOKEN_IDENTIFIER;
    637 
    638 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(s_named); ndx++)
    639 		{
    640 			if (m_curTokenStr == s_named[ndx].str)
    641 			{
    642 				m_curToken = s_named[ndx].token;
    643 				break;
    644 			}
    645 		}
    646 	}
    647 	else if (isNumeric(*m_curPtr))
    648 	{
    649 		/* \todo [2010-03-31 petri] Hex? */
    650 		const char* p = m_curPtr;
    651 		while (isNumeric(*p))
    652 			p++;
    653 		if (*p == '.')
    654 		{
    655 			p++;
    656 			while (isNumeric(*p))
    657 				p++;
    658 
    659 			if (*p == 'e' || *p == 'E')
    660 			{
    661 				p++;
    662 				if (*p == '+' || *p == '-')
    663 					p++;
    664 				DE_ASSERT(isNumeric(*p));
    665 				while (isNumeric(*p))
    666 					p++;
    667 			}
    668 
    669 			m_curToken = TOKEN_FLOAT_LITERAL;
    670 			m_curTokenStr = string(m_curPtr, p - m_curPtr);
    671 		}
    672 		else
    673 		{
    674 			m_curToken = TOKEN_INT_LITERAL;
    675 			m_curTokenStr = string(m_curPtr, p - m_curPtr);
    676 		}
    677 	}
    678 	else if (*m_curPtr == '"' && m_curPtr[1] == '"')
    679 	{
    680 		const char*	p = m_curPtr + 2;
    681 
    682 		while ((p[0] != '"') || (p[1] != '"'))
    683 		{
    684 			DE_ASSERT(*p);
    685 			if (*p == '\\')
    686 			{
    687 				DE_ASSERT(p[1] != 0);
    688 				p += 2;
    689 			}
    690 			else
    691 				p++;
    692 		}
    693 		p += 2;
    694 
    695 		m_curToken		= TOKEN_SHADER_SOURCE;
    696 		m_curTokenStr	= string(m_curPtr, (int)(p - m_curPtr));
    697 	}
    698 	else if (*m_curPtr == '"' || *m_curPtr == '\'')
    699 	{
    700 		char		endChar = *m_curPtr;
    701 		const char*	p		= m_curPtr + 1;
    702 
    703 		while (*p != endChar)
    704 		{
    705 			DE_ASSERT(*p);
    706 			if (*p == '\\')
    707 			{
    708 				DE_ASSERT(p[1] != 0);
    709 				p += 2;
    710 			}
    711 			else
    712 				p++;
    713 		}
    714 		p++;
    715 
    716 		m_curToken		= TOKEN_STRING;
    717 		m_curTokenStr	= string(m_curPtr, (int)(p - m_curPtr));
    718 	}
    719 	else
    720 	{
    721 		struct SimpleToken
    722 		{
    723 			const char*		str;
    724 			Token			token;
    725 		};
    726 
    727 		static const SimpleToken s_simple[] =
    728 		{
    729 			{ "=",			TOKEN_ASSIGN		},
    730 			{ "+",			TOKEN_PLUS			},
    731 			{ "-",			TOKEN_MINUS			},
    732 			{ ",",			TOKEN_COMMA			},
    733 			{ "|",			TOKEN_VERTICAL_BAR	},
    734 			{ ";",			TOKEN_SEMI_COLON	},
    735 			{ "(",			TOKEN_LEFT_PAREN	},
    736 			{ ")",			TOKEN_RIGHT_PAREN	},
    737 			{ "[",			TOKEN_LEFT_BRACKET	},
    738 			{ "]",			TOKEN_RIGHT_BRACKET },
    739 			{ "{",			TOKEN_LEFT_BRACE	},
    740 			{ "}",			TOKEN_RIGHT_BRACE	},
    741 			{ ">",			TOKEN_GREATER		},
    742 		};
    743 
    744 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(s_simple); ndx++)
    745 		{
    746 			if (strncmp(s_simple[ndx].str, m_curPtr, strlen(s_simple[ndx].str)) == 0)
    747 			{
    748 				m_curToken		= s_simple[ndx].token;
    749 				m_curTokenStr	= s_simple[ndx].str;
    750 				return;
    751 			}
    752 		}
    753 
    754 		// Otherwise invalid token.
    755 		m_curToken = TOKEN_INVALID;
    756 		m_curTokenStr = *m_curPtr;
    757 	}
    758 }
    759 
    760 void ShaderParser::advanceToken (Token assumed)
    761 {
    762 	assumeToken(assumed);
    763 	advanceToken();
    764 }
    765 
    766 void ShaderParser::assumeToken (Token token)
    767 {
    768 	if (m_curToken != token)
    769 		parseError((string("unexpected token '") + m_curTokenStr + "', expecting '" + getTokenName(token) + "'").c_str());
    770 	DE_TEST_ASSERT(m_curToken == token);
    771 }
    772 
    773 DataType ShaderParser::mapDataTypeToken (Token token)
    774 {
    775 	switch (token)
    776 	{
    777 		case TOKEN_FLOAT:			return TYPE_FLOAT;
    778 		case TOKEN_FLOAT_VEC2:		return TYPE_FLOAT_VEC2;
    779 		case TOKEN_FLOAT_VEC3:		return TYPE_FLOAT_VEC3;
    780 		case TOKEN_FLOAT_VEC4:		return TYPE_FLOAT_VEC4;
    781 		case TOKEN_FLOAT_MAT2:		return TYPE_FLOAT_MAT2;
    782 		case TOKEN_FLOAT_MAT2X3:	return TYPE_FLOAT_MAT2X3;
    783 		case TOKEN_FLOAT_MAT2X4:	return TYPE_FLOAT_MAT2X4;
    784 		case TOKEN_FLOAT_MAT3X2:	return TYPE_FLOAT_MAT3X2;
    785 		case TOKEN_FLOAT_MAT3:		return TYPE_FLOAT_MAT3;
    786 		case TOKEN_FLOAT_MAT3X4:	return TYPE_FLOAT_MAT3X4;
    787 		case TOKEN_FLOAT_MAT4X2:	return TYPE_FLOAT_MAT4X2;
    788 		case TOKEN_FLOAT_MAT4X3:	return TYPE_FLOAT_MAT4X3;
    789 		case TOKEN_FLOAT_MAT4:		return TYPE_FLOAT_MAT4;
    790 		case TOKEN_INT:				return TYPE_INT;
    791 		case TOKEN_INT_VEC2:		return TYPE_INT_VEC2;
    792 		case TOKEN_INT_VEC3:		return TYPE_INT_VEC3;
    793 		case TOKEN_INT_VEC4:		return TYPE_INT_VEC4;
    794 		case TOKEN_UINT:			return TYPE_UINT;
    795 		case TOKEN_UINT_VEC2:		return TYPE_UINT_VEC2;
    796 		case TOKEN_UINT_VEC3:		return TYPE_UINT_VEC3;
    797 		case TOKEN_UINT_VEC4:		return TYPE_UINT_VEC4;
    798 		case TOKEN_BOOL:			return TYPE_BOOL;
    799 		case TOKEN_BOOL_VEC2:		return TYPE_BOOL_VEC2;
    800 		case TOKEN_BOOL_VEC3:		return TYPE_BOOL_VEC3;
    801 		case TOKEN_BOOL_VEC4:		return TYPE_BOOL_VEC4;
    802 		default:					return TYPE_INVALID;
    803 	}
    804 }
    805 
    806 const char* ShaderParser::getTokenName (Token token)
    807 {
    808 	switch (token)
    809 	{
    810 		case TOKEN_INVALID:					return "<invalid>";
    811 		case TOKEN_EOF:						return "<eof>";
    812 		case TOKEN_STRING:					return "<string>";
    813 		case TOKEN_SHADER_SOURCE:			return "source";
    814 
    815 		case TOKEN_INT_LITERAL:				return "<int>";
    816 		case TOKEN_FLOAT_LITERAL:			return "<float>";
    817 
    818 		// identifiers
    819 		case TOKEN_IDENTIFIER:				return "<identifier>";
    820 		case TOKEN_TRUE:					return "true";
    821 		case TOKEN_FALSE:					return "false";
    822 		case TOKEN_DESC:					return "desc";
    823 		case TOKEN_EXPECT:					return "expect";
    824 		case TOKEN_GROUP:					return "group";
    825 		case TOKEN_CASE:					return "case";
    826 		case TOKEN_END:						return "end";
    827 		case TOKEN_VALUES:					return "values";
    828 		case TOKEN_BOTH:					return "both";
    829 		case TOKEN_VERTEX:					return "vertex";
    830 		case TOKEN_FRAGMENT:				return "fragment";
    831 		case TOKEN_TESSELLATION_CONTROL:	return "tessellation_control";
    832 		case TOKEN_TESSELLATION_EVALUATION:	return "tessellation_evaluation";
    833 		case TOKEN_GEOMETRY:				return "geometry";
    834 		case TOKEN_REQUIRE:					return "require";
    835 		case TOKEN_UNIFORM:					return "uniform";
    836 		case TOKEN_INPUT:					return "input";
    837 		case TOKEN_OUTPUT:					return "output";
    838 		case TOKEN_FLOAT:					return "float";
    839 		case TOKEN_FLOAT_VEC2:				return "vec2";
    840 		case TOKEN_FLOAT_VEC3:				return "vec3";
    841 		case TOKEN_FLOAT_VEC4:				return "vec4";
    842 		case TOKEN_FLOAT_MAT2:				return "mat2";
    843 		case TOKEN_FLOAT_MAT2X3:			return "mat2x3";
    844 		case TOKEN_FLOAT_MAT2X4:			return "mat2x4";
    845 		case TOKEN_FLOAT_MAT3X2:			return "mat3x2";
    846 		case TOKEN_FLOAT_MAT3:				return "mat3";
    847 		case TOKEN_FLOAT_MAT3X4:			return "mat3x4";
    848 		case TOKEN_FLOAT_MAT4X2:			return "mat4x2";
    849 		case TOKEN_FLOAT_MAT4X3:			return "mat4x3";
    850 		case TOKEN_FLOAT_MAT4:				return "mat4";
    851 		case TOKEN_INT:						return "int";
    852 		case TOKEN_INT_VEC2:				return "ivec2";
    853 		case TOKEN_INT_VEC3:				return "ivec3";
    854 		case TOKEN_INT_VEC4:				return "ivec4";
    855 		case TOKEN_UINT:					return "uint";
    856 		case TOKEN_UINT_VEC2:				return "uvec2";
    857 		case TOKEN_UINT_VEC3:				return "uvec3";
    858 		case TOKEN_UINT_VEC4:				return "uvec4";
    859 		case TOKEN_BOOL:					return "bool";
    860 		case TOKEN_BOOL_VEC2:				return "bvec2";
    861 		case TOKEN_BOOL_VEC3:				return "bvec3";
    862 		case TOKEN_BOOL_VEC4:				return "bvec4";
    863 		case TOKEN_IN:						return "in";
    864 		case TOKEN_IMPORT:					return "import";
    865 		case TOKEN_PIPELINE_PROGRAM:		return "pipeline_program";
    866 		case TOKEN_ACTIVE_STAGES:			return "active_stages";
    867 
    868 		case TOKEN_ASSIGN:					return "=";
    869 		case TOKEN_PLUS:					return "+";
    870 		case TOKEN_MINUS:					return "-";
    871 		case TOKEN_COMMA:					return ",";
    872 		case TOKEN_VERTICAL_BAR:			return "|";
    873 		case TOKEN_SEMI_COLON:				return ";";
    874 		case TOKEN_LEFT_PAREN:				return "(";
    875 		case TOKEN_RIGHT_PAREN:				return ")";
    876 		case TOKEN_LEFT_BRACKET:			return "[";
    877 		case TOKEN_RIGHT_BRACKET:			return "]";
    878 		case TOKEN_LEFT_BRACE:				return "{";
    879 		case TOKEN_RIGHT_BRACE:				return "}";
    880 		case TOKEN_GREATER:					return ">";
    881 
    882 		default:							return "<unknown>";
    883 	}
    884 }
    885 
    886 deUint32 ShaderParser::getShaderStageLiteralFlag (void)
    887 {
    888 	switch (m_curToken)
    889 	{
    890 		case TOKEN_VERTEX:					return (1 << glu::SHADERTYPE_VERTEX);
    891 		case TOKEN_FRAGMENT:				return (1 << glu::SHADERTYPE_FRAGMENT);
    892 		case TOKEN_GEOMETRY:				return (1 << glu::SHADERTYPE_GEOMETRY);
    893 		case TOKEN_TESSELLATION_CONTROL:	return (1 << glu::SHADERTYPE_TESSELLATION_CONTROL);
    894 		case TOKEN_TESSELLATION_EVALUATION:	return (1 << glu::SHADERTYPE_TESSELLATION_EVALUATION);
    895 
    896 		default:
    897 			parseError(std::string() + "invalid shader stage name, got " + m_curTokenStr);
    898 			return 0;
    899 	}
    900 }
    901 
    902 deUint32 ShaderParser::getGLEnumFromName (const std::string& enumName)
    903 {
    904 	static const struct
    905 	{
    906 		const char*	name;
    907 		deUint32	value;
    908 	} names[] =
    909 	{
    910 		{ "GL_MAX_VERTEX_IMAGE_UNIFORMS",			GL_MAX_VERTEX_IMAGE_UNIFORMS			},
    911 		{ "GL_MAX_VERTEX_ATOMIC_COUNTERS",			GL_MAX_VERTEX_ATOMIC_COUNTERS			},
    912 		{ "GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS",	GL_MAX_VERTEX_SHADER_STORAGE_BLOCKS		},
    913 		{ "GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS",	GL_MAX_FRAGMENT_SHADER_STORAGE_BLOCKS	},
    914 	};
    915 
    916 	for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(names); ++ndx)
    917 		if (names[ndx].name == enumName)
    918 			return names[ndx].value;
    919 
    920 	parseError(std::string() + "unknown enum name, got " + enumName);
    921 	return 0;
    922 }
    923 
    924 void ShaderParser::parseValueElement (DataType expectedDataType, Value& result)
    925 {
    926 	DataType	scalarType	= getDataTypeScalarType(expectedDataType);
    927 	int			scalarSize	= getDataTypeScalarSize(expectedDataType);
    928 
    929 	/* \todo [2010-04-19 petri] Support arrays. */
    930 	Value::Element elems[16];
    931 
    932 	if (scalarSize > 1)
    933 	{
    934 		DE_ASSERT(mapDataTypeToken(m_curToken) == expectedDataType);
    935 		advanceToken(); // data type (float, vec2, etc.)
    936 		advanceToken(TOKEN_LEFT_PAREN);
    937 	}
    938 
    939 	for (int scalarNdx = 0; scalarNdx < scalarSize; scalarNdx++)
    940 	{
    941 		if (scalarType == TYPE_FLOAT)
    942 		{
    943 			float signMult = 1.0f;
    944 			if (m_curToken == TOKEN_MINUS)
    945 			{
    946 				signMult = -1.0f;
    947 				advanceToken();
    948 			}
    949 
    950 			assumeToken(TOKEN_FLOAT_LITERAL);
    951 			elems[scalarNdx].float32 = signMult * parseFloatLiteral(m_curTokenStr.c_str());
    952 			advanceToken(TOKEN_FLOAT_LITERAL);
    953 		}
    954 		else if (scalarType == TYPE_INT || scalarType == TYPE_UINT)
    955 		{
    956 			int signMult = 1;
    957 			if (m_curToken == TOKEN_MINUS)
    958 			{
    959 				signMult = -1;
    960 				advanceToken();
    961 			}
    962 
    963 			assumeToken(TOKEN_INT_LITERAL);
    964 			elems[scalarNdx].int32 = signMult * parseIntLiteral(m_curTokenStr.c_str());
    965 			advanceToken(TOKEN_INT_LITERAL);
    966 		}
    967 		else
    968 		{
    969 			DE_ASSERT(scalarType == TYPE_BOOL);
    970 			elems[scalarNdx].bool32 = (m_curToken == TOKEN_TRUE);
    971 			if (m_curToken != TOKEN_TRUE && m_curToken != TOKEN_FALSE)
    972 				parseError(string("unexpected token, expecting bool: " + m_curTokenStr));
    973 			advanceToken(); // true/false
    974 		}
    975 
    976 		if (scalarNdx != (scalarSize - 1))
    977 			advanceToken(TOKEN_COMMA);
    978 	}
    979 
    980 	if (scalarSize > 1)
    981 		advanceToken(TOKEN_RIGHT_PAREN);
    982 
    983 	// Store results.
    984 	for (int scalarNdx = 0; scalarNdx < scalarSize; scalarNdx++)
    985 		result.elements.push_back(elems[scalarNdx]);
    986 }
    987 
    988 void ShaderParser::parseValue (ValueBlock& valueBlock)
    989 {
    990 	PARSE_DBG(("      parseValue()\n"));
    991 
    992 	// Parsed results.
    993 	vector<Value>*	dstBlock	= DE_NULL;
    994 	DataType		basicType	= TYPE_LAST;
    995 	std::string		valueName;
    996 
    997 	// Parse storage.
    998 	if (m_curToken == TOKEN_UNIFORM)
    999 		dstBlock = &valueBlock.uniforms;
   1000 	else if (m_curToken == TOKEN_INPUT)
   1001 		dstBlock = &valueBlock.inputs;
   1002 	else if (m_curToken == TOKEN_OUTPUT)
   1003 		dstBlock = &valueBlock.outputs;
   1004 	else
   1005 		parseError(string("unexpected token encountered when parsing value classifier"));
   1006 	advanceToken();
   1007 
   1008 	// Parse data type.
   1009 	basicType = mapDataTypeToken(m_curToken);
   1010 	if (basicType == TYPE_INVALID)
   1011 		parseError(string("unexpected token when parsing value data type: " + m_curTokenStr));
   1012 	advanceToken();
   1013 
   1014 	// Parse value name.
   1015 	if (m_curToken == TOKEN_IDENTIFIER || m_curToken == TOKEN_STRING)
   1016 	{
   1017 		if (m_curToken == TOKEN_IDENTIFIER)
   1018 			valueName = m_curTokenStr;
   1019 		else
   1020 			valueName = parseStringLiteral(m_curTokenStr.c_str());
   1021 	}
   1022 	else
   1023 		parseError(string("unexpected token when parsing value name: " + m_curTokenStr));
   1024 	advanceToken();
   1025 
   1026 	// Parse assignment operator.
   1027 	advanceToken(TOKEN_ASSIGN);
   1028 
   1029 	{
   1030 		Value value;
   1031 		value.name	= valueName;
   1032 		value.type	= VarType(basicType, PRECISION_LAST);
   1033 		dstBlock->push_back(value);
   1034 	}
   1035 
   1036 	// Parse actual value.
   1037 	if (m_curToken == TOKEN_LEFT_BRACKET) // value list
   1038 	{
   1039 		int	arrayLength	= 0; // \todo [2015-08-03 pyry] Currently unused
   1040 
   1041 		advanceToken(TOKEN_LEFT_BRACKET);
   1042 
   1043 		for (;;)
   1044 		{
   1045 			parseValueElement(basicType, dstBlock->back());
   1046 			arrayLength++;
   1047 
   1048 			if (m_curToken == TOKEN_RIGHT_BRACKET)
   1049 				break;
   1050 			else if (m_curToken == TOKEN_VERTICAL_BAR)
   1051 			{
   1052 				advanceToken();
   1053 				continue;
   1054 			}
   1055 			else
   1056 				parseError(string("unexpected token in value element array: " + m_curTokenStr));
   1057 		}
   1058 
   1059 		advanceToken(TOKEN_RIGHT_BRACKET);
   1060 	}
   1061 	else //  single elements
   1062 	{
   1063 		parseValueElement(basicType, dstBlock->back());
   1064 	}
   1065 
   1066 	advanceToken(TOKEN_SEMI_COLON); // end of declaration
   1067 }
   1068 
   1069 void ShaderParser::parseValueBlock (ValueBlock& valueBlock)
   1070 {
   1071 	PARSE_DBG(("    parseValueBlock()\n"));
   1072 	advanceToken(TOKEN_VALUES);
   1073 	advanceToken(TOKEN_LEFT_BRACE);
   1074 
   1075 	for (;;)
   1076 	{
   1077 		if (m_curToken == TOKEN_UNIFORM || m_curToken == TOKEN_INPUT || m_curToken == TOKEN_OUTPUT)
   1078 			parseValue(valueBlock);
   1079 		else if (m_curToken == TOKEN_RIGHT_BRACE)
   1080 			break;
   1081 		else
   1082 			parseError(string("unexpected token when parsing a value block: " + m_curTokenStr));
   1083 	}
   1084 
   1085 	advanceToken(TOKEN_RIGHT_BRACE);
   1086 }
   1087 
   1088 deUint32 ShaderParser::parseShaderStageList (void)
   1089 {
   1090 	deUint32 mask = 0;
   1091 
   1092 	assumeToken(TOKEN_LEFT_BRACE);
   1093 
   1094 	// don't allow 0-sized lists
   1095 	advanceToken();
   1096 	mask |= getShaderStageLiteralFlag();
   1097 	advanceToken();
   1098 
   1099 	for (;;)
   1100 	{
   1101 		if (m_curToken == TOKEN_RIGHT_BRACE)
   1102 			break;
   1103 		else if (m_curToken == TOKEN_COMMA)
   1104 		{
   1105 			deUint32 stageFlag;
   1106 			advanceToken();
   1107 
   1108 			stageFlag = getShaderStageLiteralFlag();
   1109 			if (stageFlag & mask)
   1110 				parseError(string("stage already set in the shader stage set: " + m_curTokenStr));
   1111 
   1112 			mask |= stageFlag;
   1113 			advanceToken();
   1114 		}
   1115 		else
   1116 			parseError(string("invalid shader stage set token: " + m_curTokenStr));
   1117 	}
   1118 	advanceToken(TOKEN_RIGHT_BRACE);
   1119 
   1120 	return mask;
   1121 }
   1122 
   1123 void ShaderParser::parseRequirement (vector<RequiredCapability>& requiredCaps, vector<RequiredExtension>& requiredExts)
   1124 {
   1125 	PARSE_DBG(("    parseRequirement()\n"));
   1126 
   1127 	advanceToken();
   1128 	assumeToken(TOKEN_IDENTIFIER);
   1129 
   1130 	if (m_curTokenStr == "extension")
   1131 	{
   1132 		std::vector<std::string>	anyExtensionStringList;
   1133 		deUint32					affectedCasesFlags		= -1; // by default all stages
   1134 
   1135 		advanceToken();
   1136 		assumeToken(TOKEN_LEFT_BRACE);
   1137 
   1138 		advanceToken();
   1139 		assumeToken(TOKEN_STRING);
   1140 
   1141 		anyExtensionStringList.push_back(parseStringLiteral(m_curTokenStr.c_str()));
   1142 		advanceToken();
   1143 
   1144 		for (;;)
   1145 		{
   1146 			if (m_curToken == TOKEN_RIGHT_BRACE)
   1147 				break;
   1148 			else if (m_curToken == TOKEN_VERTICAL_BAR)
   1149 			{
   1150 				advanceToken();
   1151 				assumeToken(TOKEN_STRING);
   1152 
   1153 				anyExtensionStringList.push_back(parseStringLiteral(m_curTokenStr.c_str()));
   1154 				advanceToken();
   1155 			}
   1156 			else
   1157 				parseError(string("invalid extension list token: " + m_curTokenStr));
   1158 		}
   1159 		advanceToken(TOKEN_RIGHT_BRACE);
   1160 
   1161 		if (m_curToken == TOKEN_IN)
   1162 		{
   1163 			advanceToken();
   1164 			affectedCasesFlags = parseShaderStageList();
   1165 		}
   1166 
   1167 		requiredExts.push_back(RequiredExtension(anyExtensionStringList, affectedCasesFlags));
   1168 	}
   1169 	else if (m_curTokenStr == "limit")
   1170 	{
   1171 		deUint32	limitEnum;
   1172 		int			limitValue;
   1173 
   1174 		advanceToken();
   1175 
   1176 		assumeToken(TOKEN_STRING);
   1177 		limitEnum = getGLEnumFromName(parseStringLiteral(m_curTokenStr.c_str()));
   1178 		advanceToken();
   1179 
   1180 		assumeToken(TOKEN_GREATER);
   1181 		advanceToken();
   1182 
   1183 		assumeToken(TOKEN_INT_LITERAL);
   1184 		limitValue = parseIntLiteral(m_curTokenStr.c_str());
   1185 		advanceToken();
   1186 
   1187 		requiredCaps.push_back(RequiredCapability(limitEnum, limitValue));
   1188 	}
   1189 	else if (m_curTokenStr == "full_glsl_es_100_support")
   1190 	{
   1191 		advanceToken();
   1192 
   1193 		requiredCaps.push_back(RequiredCapability(CAPABILITY_FULL_GLSL_ES_100_SUPPORT));
   1194 	}
   1195 	else if (m_curTokenStr == "only_glsl_es_100_support")
   1196 	{
   1197 		advanceToken();
   1198 
   1199 		requiredCaps.push_back(RequiredCapability(CAPABILITY_ONLY_GLSL_ES_100_SUPPORT));
   1200 	}
   1201 	else if (m_curTokenStr == "exactly_one_draw_buffer")
   1202 	{
   1203 		advanceToken();
   1204 
   1205 		requiredCaps.push_back(RequiredCapability(CAPABILITY_EXACTLY_ONE_DRAW_BUFFER));
   1206 	}
   1207 	else
   1208 		parseError(string("invalid requirement value: " + m_curTokenStr));
   1209 }
   1210 
   1211 void ShaderParser::parseExpectResult (ExpectResult& expectResult)
   1212 {
   1213 	assumeToken(TOKEN_IDENTIFIER);
   1214 
   1215 	if (m_curTokenStr == "pass")
   1216 		expectResult = EXPECT_PASS;
   1217 	else if (m_curTokenStr == "compile_fail")
   1218 		expectResult = EXPECT_COMPILE_FAIL;
   1219 	else if (m_curTokenStr == "link_fail")
   1220 		expectResult = EXPECT_LINK_FAIL;
   1221 	else if (m_curTokenStr == "compile_or_link_fail")
   1222 		expectResult = EXPECT_COMPILE_LINK_FAIL;
   1223 	else if (m_curTokenStr == "validation_fail")
   1224 		expectResult = EXPECT_VALIDATION_FAIL;
   1225 	else if (m_curTokenStr == "build_successful")
   1226 		expectResult = EXPECT_BUILD_SUCCESSFUL;
   1227 	else
   1228 		parseError(string("invalid expected result value: " + m_curTokenStr));
   1229 
   1230 	advanceToken();
   1231 }
   1232 
   1233 void ShaderParser::parseFormat (DataType& format)
   1234 {
   1235 	format = mapDataTypeToken(m_curToken);
   1236 	advanceToken();
   1237 }
   1238 
   1239 void ShaderParser::parseGLSLVersion (glu::GLSLVersion& version)
   1240 {
   1241 	int			versionNum		= 0;
   1242 	std::string	postfix			= "";
   1243 
   1244 	assumeToken(TOKEN_INT_LITERAL);
   1245 	versionNum = parseIntLiteral(m_curTokenStr.c_str());
   1246 	advanceToken();
   1247 
   1248 	if (m_curToken == TOKEN_IDENTIFIER)
   1249 	{
   1250 		postfix = m_curTokenStr;
   1251 		advanceToken();
   1252 	}
   1253 
   1254 	DE_STATIC_ASSERT(glu::GLSL_VERSION_LAST == 15);
   1255 
   1256 	if		(versionNum == 100 && postfix == "es")	version = glu::GLSL_VERSION_100_ES;
   1257 	else if (versionNum == 300 && postfix == "es")	version = glu::GLSL_VERSION_300_ES;
   1258 	else if (versionNum == 310 && postfix == "es")	version = glu::GLSL_VERSION_310_ES;
   1259 	else if (versionNum == 320 && postfix == "es")	version = glu::GLSL_VERSION_320_ES;
   1260 	else if (versionNum == 130)						version = glu::GLSL_VERSION_130;
   1261 	else if (versionNum == 140)						version = glu::GLSL_VERSION_140;
   1262 	else if (versionNum == 150)						version = glu::GLSL_VERSION_150;
   1263 	else if (versionNum == 330)						version = glu::GLSL_VERSION_330;
   1264 	else if (versionNum == 400)						version = glu::GLSL_VERSION_400;
   1265 	else if (versionNum == 410)						version = glu::GLSL_VERSION_410;
   1266 	else if (versionNum == 420)						version = glu::GLSL_VERSION_420;
   1267 	else if (versionNum == 430)						version = glu::GLSL_VERSION_430;
   1268 	else if (versionNum == 440)						version = glu::GLSL_VERSION_440;
   1269 	else if (versionNum == 450)						version = glu::GLSL_VERSION_450;
   1270 	else if (versionNum == 460)						version = glu::GLSL_VERSION_460;
   1271 	else
   1272 		parseError("Unknown GLSL version");
   1273 }
   1274 
   1275 void ShaderParser::parsePipelineProgram (ProgramSpecification& program)
   1276 {
   1277 	advanceToken(TOKEN_PIPELINE_PROGRAM);
   1278 
   1279 	for (;;)
   1280 	{
   1281 		if (m_curToken == TOKEN_END)
   1282 			break;
   1283 		else if (m_curToken == TOKEN_ACTIVE_STAGES)
   1284 		{
   1285 			advanceToken();
   1286 			program.activeStages = parseShaderStageList();
   1287 		}
   1288 		else if (m_curToken == TOKEN_REQUIRE)
   1289 		{
   1290 			vector<RequiredCapability> dummyCaps;
   1291 			size_t size = program.requiredExtensions.size();
   1292 			parseRequirement(dummyCaps, program.requiredExtensions);
   1293 
   1294 			if (size == program.requiredExtensions.size())
   1295 				parseError("only extension requirements are allowed inside pipeline program");
   1296 		}
   1297 		else if (m_curToken == TOKEN_VERTEX						||
   1298 				 m_curToken == TOKEN_FRAGMENT					||
   1299 				 m_curToken == TOKEN_TESSELLATION_CONTROL		||
   1300 				 m_curToken == TOKEN_TESSELLATION_EVALUATION	||
   1301 				 m_curToken == TOKEN_GEOMETRY)
   1302 		{
   1303 			const Token	token = m_curToken;
   1304 			string		source;
   1305 
   1306 			advanceToken();
   1307 			assumeToken(TOKEN_SHADER_SOURCE);
   1308 			source = parseShaderSource(m_curTokenStr.c_str());
   1309 			advanceToken();
   1310 
   1311 			switch (token)
   1312 			{
   1313 				case TOKEN_VERTEX:					program.sources.sources[SHADERTYPE_VERTEX].push_back(source);					break;
   1314 				case TOKEN_FRAGMENT:				program.sources.sources[SHADERTYPE_FRAGMENT].push_back(source);					break;
   1315 				case TOKEN_TESSELLATION_CONTROL:	program.sources.sources[SHADERTYPE_TESSELLATION_CONTROL].push_back(source);		break;
   1316 				case TOKEN_TESSELLATION_EVALUATION:	program.sources.sources[SHADERTYPE_TESSELLATION_EVALUATION].push_back(source);	break;
   1317 				case TOKEN_GEOMETRY:				program.sources.sources[SHADERTYPE_GEOMETRY].push_back(source);					break;
   1318 				default:
   1319 					parseError(DE_FALSE);
   1320 			}
   1321 		}
   1322 		else
   1323 			parseError(string("invalid pipeline program value: " + m_curTokenStr));
   1324 	}
   1325 	advanceToken(TOKEN_END);
   1326 
   1327 	if (program.activeStages == 0)
   1328 		parseError("program pipeline object must have active stages");
   1329 }
   1330 
   1331 void ShaderParser::parseShaderCase (vector<tcu::TestNode*>& shaderNodeList)
   1332 {
   1333 	// Parse 'case'.
   1334 	PARSE_DBG(("  parseShaderCase()\n"));
   1335 	advanceToken(TOKEN_CASE);
   1336 
   1337 	// Parse case name.
   1338 	string caseName = m_curTokenStr;
   1339 	advanceToken(); // \note [pyry] All token types are allowed here.
   1340 
   1341 	// \todo [pyry] Optimize by parsing most stuff directly to ShaderCaseSpecification
   1342 
   1343 	// Setup case.
   1344 	GLSLVersion						version			= DEFAULT_GLSL_VERSION;
   1345 	ExpectResult					expectResult	= EXPECT_PASS;
   1346 	OutputType						outputType		= OUTPUT_RESULT;
   1347 	DataType						format			= TYPE_LAST;
   1348 	string							description;
   1349 	string							bothSource;
   1350 	vector<string>					vertexSources;
   1351 	vector<string>					fragmentSources;
   1352 	vector<string>					tessellationCtrlSources;
   1353 	vector<string>					tessellationEvalSources;
   1354 	vector<string>					geometrySources;
   1355 	ValueBlock						valueBlock;
   1356 	bool							valueBlockSeen	= false;
   1357 	vector<RequiredCapability>		requiredCaps;
   1358 	vector<RequiredExtension>		requiredExts;
   1359 	vector<ProgramSpecification>	pipelinePrograms;
   1360 
   1361 	for (;;)
   1362 	{
   1363 		if (m_curToken == TOKEN_END)
   1364 			break;
   1365 		else if (m_curToken == TOKEN_DESC)
   1366 		{
   1367 			advanceToken();
   1368 			assumeToken(TOKEN_STRING);
   1369 			description = parseStringLiteral(m_curTokenStr.c_str());
   1370 			advanceToken();
   1371 		}
   1372 		else if (m_curToken == TOKEN_EXPECT)
   1373 		{
   1374 			advanceToken();
   1375 			parseExpectResult(expectResult);
   1376 		}
   1377 		else if (m_curToken == TOKEN_OUTPUT_COLOR)
   1378 		{
   1379 			outputType = OUTPUT_COLOR;
   1380 			advanceToken();
   1381 			parseFormat(format);
   1382 		}
   1383 		else if (m_curToken == TOKEN_VALUES)
   1384 		{
   1385 			if (valueBlockSeen)
   1386 				parseError("multiple value blocks");
   1387 			parseValueBlock(valueBlock);
   1388 			valueBlockSeen = true;
   1389 		}
   1390 		else if (m_curToken == TOKEN_BOTH						||
   1391 				 m_curToken == TOKEN_VERTEX						||
   1392 				 m_curToken == TOKEN_FRAGMENT					||
   1393 				 m_curToken == TOKEN_TESSELLATION_CONTROL		||
   1394 				 m_curToken == TOKEN_TESSELLATION_EVALUATION	||
   1395 				 m_curToken == TOKEN_GEOMETRY)
   1396 		{
   1397 			const Token	token = m_curToken;
   1398 			string		source;
   1399 
   1400 			advanceToken();
   1401 			assumeToken(TOKEN_SHADER_SOURCE);
   1402 			source = parseShaderSource(m_curTokenStr.c_str());
   1403 			advanceToken();
   1404 
   1405 			switch (token)
   1406 			{
   1407 				case TOKEN_VERTEX:					vertexSources.push_back(source);			break;
   1408 				case TOKEN_FRAGMENT:				fragmentSources.push_back(source);			break;
   1409 				case TOKEN_TESSELLATION_CONTROL:	tessellationCtrlSources.push_back(source);	break;
   1410 				case TOKEN_TESSELLATION_EVALUATION:	tessellationEvalSources.push_back(source);	break;
   1411 				case TOKEN_GEOMETRY:				geometrySources.push_back(source);			break;
   1412 				case TOKEN_BOTH:
   1413 				{
   1414 					if (!bothSource.empty())
   1415 						parseError("multiple 'both' blocks");
   1416 					bothSource = source;
   1417 					break;
   1418 				}
   1419 
   1420 				default:
   1421 					parseError(DE_FALSE);
   1422 			}
   1423 		}
   1424 		else if (m_curToken == TOKEN_VERSION)
   1425 		{
   1426 			advanceToken();
   1427 			parseGLSLVersion(version);
   1428 		}
   1429 		else if (m_curToken == TOKEN_REQUIRE)
   1430 		{
   1431 			parseRequirement(requiredCaps, requiredExts);
   1432 		}
   1433 		else if (m_curToken == TOKEN_PIPELINE_PROGRAM)
   1434 		{
   1435 			ProgramSpecification pipelineProgram;
   1436 			parsePipelineProgram(pipelineProgram);
   1437 			pipelineProgram.sources.separable = true;
   1438 			pipelinePrograms.push_back(pipelineProgram);
   1439 		}
   1440 		else
   1441 			parseError(string("unexpected token while parsing shader case: " + m_curTokenStr));
   1442 	}
   1443 
   1444 	advanceToken(TOKEN_END); // case end
   1445 
   1446 	if (!bothSource.empty())
   1447 	{
   1448 		if (!vertexSources.empty()				||
   1449 			!fragmentSources.empty()			||
   1450 			!tessellationCtrlSources.empty()	||
   1451 			!tessellationEvalSources.empty()	||
   1452 			!geometrySources.empty()			||
   1453 			!pipelinePrograms.empty())
   1454 		{
   1455 			parseError("'both' cannot be mixed with other shader stages");
   1456 		}
   1457 
   1458 		// vertex
   1459 		{
   1460 			ShaderCaseSpecification	spec;
   1461 			spec.caseType				= CASETYPE_VERTEX_ONLY;
   1462 			spec.expectResult			= expectResult;
   1463 			spec.targetVersion			= version;
   1464 			spec.requiredCaps			= requiredCaps;
   1465 			spec.values					= valueBlock;
   1466 
   1467 			spec.programs.resize(1);
   1468 			spec.programs[0].sources << VertexSource(bothSource);
   1469 			spec.programs[0].requiredExtensions	= requiredExts;
   1470 
   1471 			shaderNodeList.push_back(m_caseFactory->createCase(caseName + "_vertex", description, ShaderCaseSpecification(spec)));
   1472 		}
   1473 
   1474 		// fragment
   1475 		{
   1476 			ShaderCaseSpecification	spec;
   1477 			spec.caseType				= CASETYPE_FRAGMENT_ONLY;
   1478 			spec.expectResult			= expectResult;
   1479 			spec.targetVersion			= version;
   1480 			spec.requiredCaps			= requiredCaps;
   1481 			spec.values					= valueBlock;
   1482 
   1483 			spec.programs.resize(1);
   1484 			spec.programs[0].sources << FragmentSource(bothSource);
   1485 			spec.programs[0].requiredExtensions	= requiredExts;
   1486 
   1487 			shaderNodeList.push_back(m_caseFactory->createCase(caseName + "_fragment", description, ShaderCaseSpecification(spec)));
   1488 		}
   1489 	}
   1490 	else if (pipelinePrograms.empty())
   1491 	{
   1492 		ShaderCaseSpecification	spec;
   1493 		spec.caseType				= CASETYPE_COMPLETE;
   1494 		spec.expectResult			= expectResult;
   1495 		spec.outputType				= outputType;
   1496 		spec.outputFormat			= format;
   1497 		spec.targetVersion			= version;
   1498 		spec.requiredCaps			= requiredCaps;
   1499 		spec.values					= valueBlock;
   1500 
   1501 		spec.programs.resize(1);
   1502 		spec.programs[0].sources.sources[SHADERTYPE_VERTEX].swap(vertexSources);
   1503 		spec.programs[0].sources.sources[SHADERTYPE_FRAGMENT].swap(fragmentSources);
   1504 		spec.programs[0].sources.sources[SHADERTYPE_TESSELLATION_CONTROL].swap(tessellationCtrlSources);
   1505 		spec.programs[0].sources.sources[SHADERTYPE_TESSELLATION_EVALUATION].swap(tessellationEvalSources);
   1506 		spec.programs[0].sources.sources[SHADERTYPE_GEOMETRY].swap(geometrySources);
   1507 		spec.programs[0].requiredExtensions.swap(requiredExts);
   1508 
   1509 		shaderNodeList.push_back(m_caseFactory->createCase(caseName, description, ShaderCaseSpecification(spec)));
   1510 	}
   1511 	else
   1512 	{
   1513 		if (!vertexSources.empty()				||
   1514 			!fragmentSources.empty()			||
   1515 			!tessellationCtrlSources.empty()	||
   1516 			!tessellationEvalSources.empty()	||
   1517 			!geometrySources.empty())
   1518 		{
   1519 			parseError("pipeline programs cannot be mixed with complete programs");
   1520 		}
   1521 
   1522 		if (!requiredExts.empty())
   1523 			parseError("global extension requirements cannot be mixed with pipeline programs");
   1524 
   1525 		// Pipeline case, multiple programs
   1526 		{
   1527 			ShaderCaseSpecification	spec;
   1528 			spec.caseType				= CASETYPE_COMPLETE;
   1529 			spec.expectResult			= expectResult;
   1530 			spec.targetVersion			= version;
   1531 			spec.requiredCaps			= requiredCaps;
   1532 			spec.values					= valueBlock;
   1533 
   1534 			spec.programs.swap(pipelinePrograms);
   1535 
   1536 			shaderNodeList.push_back(m_caseFactory->createCase(caseName, description, ShaderCaseSpecification(spec)));
   1537 		}
   1538 	}
   1539 }
   1540 
   1541 void ShaderParser::parseShaderGroup (vector<tcu::TestNode*>& shaderNodeList)
   1542 {
   1543 	// Parse 'case'.
   1544 	PARSE_DBG(("  parseShaderGroup()\n"));
   1545 	advanceToken(TOKEN_GROUP);
   1546 
   1547 	// Parse case name.
   1548 	string name = m_curTokenStr;
   1549 	advanceToken(); // \note [pyry] We don't want to check token type here (for instance to allow "uniform") group.
   1550 
   1551 	// Parse description.
   1552 	assumeToken(TOKEN_STRING);
   1553 	string description = parseStringLiteral(m_curTokenStr.c_str());
   1554 	advanceToken(TOKEN_STRING);
   1555 
   1556 	std::vector<tcu::TestNode*> children;
   1557 
   1558 	// Parse group children.
   1559 	for (;;)
   1560 	{
   1561 		if (m_curToken == TOKEN_END)
   1562 			break;
   1563 		else if (m_curToken == TOKEN_GROUP)
   1564 			parseShaderGroup(children);
   1565 		else if (m_curToken == TOKEN_CASE)
   1566 			parseShaderCase(children);
   1567 		else if (m_curToken == TOKEN_IMPORT)
   1568 			parseImport(children);
   1569 		else
   1570 			parseError(string("unexpected token while parsing shader group: " + m_curTokenStr));
   1571 	}
   1572 
   1573 	advanceToken(TOKEN_END); // group end
   1574 
   1575 	// Create group node.
   1576 	tcu::TestCaseGroup* groupNode = m_caseFactory->createGroup(name, description, children);
   1577 	shaderNodeList.push_back(groupNode);
   1578 }
   1579 
   1580 void ShaderParser::parseImport (vector<tcu::TestNode*>& shaderNodeList)
   1581 {
   1582 	std::string	importFileName;
   1583 
   1584 	advanceToken(TOKEN_IMPORT);
   1585 
   1586 	assumeToken(TOKEN_STRING);
   1587 	importFileName = parseStringLiteral(m_curTokenStr.c_str());
   1588 	advanceToken(TOKEN_STRING);
   1589 
   1590 	{
   1591 		ShaderParser					subParser		(m_archive, de::FilePath::join(de::FilePath(m_filename).getDirName(), importFileName).getPath(), m_caseFactory);
   1592 		const vector<tcu::TestNode*>	importedCases = subParser.parse();
   1593 
   1594 		// \todo [2015-08-03 pyry] Not exception safe
   1595 		shaderNodeList.insert(shaderNodeList.end(), importedCases.begin(), importedCases.end());
   1596 	}
   1597 }
   1598 
   1599 vector<tcu::TestNode*> ShaderParser::parse (void)
   1600 {
   1601 	const int	dataLen		= m_resource->getSize();
   1602 
   1603 	m_input.resize(dataLen+1);
   1604 	m_resource->setPosition(0);
   1605 	m_resource->read((deUint8*)&m_input[0], dataLen);
   1606 	m_input[dataLen] = '\0';
   1607 
   1608 	// Initialize parser.
   1609 	m_curPtr		= &m_input[0];
   1610 	m_curToken		= TOKEN_INVALID;
   1611 	m_curTokenStr	= "";
   1612 	advanceToken();
   1613 
   1614 	vector<tcu::TestNode*> nodeList;
   1615 
   1616 	// Parse all cases.
   1617 	PARSE_DBG(("parse()\n"));
   1618 	for (;;)
   1619 	{
   1620 		if (m_curToken == TOKEN_CASE)
   1621 			parseShaderCase(nodeList);
   1622 		else if (m_curToken == TOKEN_GROUP)
   1623 			parseShaderGroup(nodeList);
   1624 		else if (m_curToken == TOKEN_IMPORT)
   1625 			parseImport(nodeList);
   1626 		else if (m_curToken == TOKEN_EOF)
   1627 			break;
   1628 		else
   1629 			parseError(string("invalid token encountered at main level: '") + m_curTokenStr + "'");
   1630 	}
   1631 
   1632 	assumeToken(TOKEN_EOF);
   1633 //	printf("  parsed %d test cases.\n", caseList.size());
   1634 	return nodeList;
   1635 }
   1636 
   1637 std::vector<tcu::TestNode*> parseFile (const tcu::Archive& archive, const std::string& filename, ShaderCaseFactory* caseFactory)
   1638 {
   1639 	sl::ShaderParser	parser	(archive, filename, caseFactory);
   1640 
   1641 	return parser.parse();
   1642 }
   1643 
   1644 // Execution utilities
   1645 
   1646 static void dumpValue (tcu::TestLog& log, const Value& val, const char* storageName, int arrayNdx)
   1647 {
   1648 	const char* const	valueName		= val.name.c_str();
   1649 	const DataType		dataType		= val.type.getBasicType();
   1650 	int					scalarSize		= getDataTypeScalarSize(dataType);
   1651 	ostringstream		result;
   1652 
   1653 	result << "    " << storageName << " ";
   1654 
   1655 	result << getDataTypeName(dataType) << " " << valueName << ":";
   1656 
   1657 	if (isDataTypeScalar(dataType))
   1658 		result << " ";
   1659 	if (isDataTypeVector(dataType))
   1660 		result << " [ ";
   1661 	else if (isDataTypeMatrix(dataType))
   1662 		result << "\n";
   1663 
   1664 	if (isDataTypeScalarOrVector(dataType))
   1665 	{
   1666 		for (int scalarNdx = 0; scalarNdx < scalarSize; scalarNdx++)
   1667 		{
   1668 			int						elemNdx	= arrayNdx;
   1669 			const Value::Element&	e		= val.elements[elemNdx*scalarSize + scalarNdx];
   1670 			result << ((scalarNdx != 0) ? ", " : "");
   1671 
   1672 			if (isDataTypeFloatOrVec(dataType))
   1673 				result << e.float32;
   1674 			else if (isDataTypeIntOrIVec(dataType))
   1675 				result << e.int32;
   1676 			else if (isDataTypeUintOrUVec(dataType))
   1677 				result << (deUint32)e.int32;
   1678 			else if (isDataTypeBoolOrBVec(dataType))
   1679 				result << (e.bool32 ? "true" : "false");
   1680 		}
   1681 	}
   1682 	else if (isDataTypeMatrix(dataType))
   1683 	{
   1684 		int numRows = getDataTypeMatrixNumRows(dataType);
   1685 		int numCols = getDataTypeMatrixNumColumns(dataType);
   1686 		for (int rowNdx = 0; rowNdx < numRows; rowNdx++)
   1687 		{
   1688 			result << "       [ ";
   1689 			for (int colNdx = 0; colNdx < numCols; colNdx++)
   1690 			{
   1691 				int		elemNdx = arrayNdx;
   1692 				float	v		= val.elements[elemNdx*scalarSize + rowNdx*numCols + colNdx].float32;
   1693 				result << ((colNdx==0) ? "" : ", ") << v;
   1694 			}
   1695 			result << " ]\n";
   1696 		}
   1697 	}
   1698 
   1699 	if (isDataTypeScalar(dataType))
   1700 		result << "\n";
   1701 	else if (isDataTypeVector(dataType))
   1702 		result << " ]\n";
   1703 
   1704 	log << TestLog::Message << result.str() << TestLog::EndMessage;
   1705 }
   1706 
   1707 static void dumpValues (tcu::TestLog& log, const vector<Value>& values, const char* storageName, int arrayNdx)
   1708 {
   1709 	for (size_t valNdx = 0; valNdx < values.size(); valNdx++)
   1710 		dumpValue(log, values[valNdx], storageName, arrayNdx);
   1711 }
   1712 
   1713 void dumpValues (tcu::TestLog& log, const ValueBlock& values, int arrayNdx)
   1714 {
   1715 	dumpValues(log, values.inputs,		"input",	arrayNdx);
   1716 	dumpValues(log, values.outputs,		"expected",	arrayNdx);
   1717 	dumpValues(log, values.uniforms,	"uniform",	arrayNdx);
   1718 }
   1719 
   1720 static void generateExtensionStatements (std::ostringstream& buf, const std::vector<RequiredExtension>& extensions, glu::ShaderType type)
   1721 {
   1722 	for (size_t ndx = 0; ndx < extensions.size(); ++ndx)
   1723 	{
   1724 		DE_ASSERT(extensions[ndx].effectiveStages != 0u &&
   1725 				  extensions[ndx].alternatives.size() == 1);
   1726 
   1727 		if ((extensions[ndx].effectiveStages & (1u << (deUint32)type)) != 0)
   1728 			buf << "#extension " << extensions[ndx].alternatives[0] << " : require\n";
   1729 	}
   1730 }
   1731 
   1732 // Injects #extension XXX : require lines after the last preprocessor directive in the shader code. Does not support line continuations
   1733 std::string injectExtensionRequirements (const std::string& baseCode, const std::vector<RequiredExtension>& extensions, glu::ShaderType shaderType)
   1734 {
   1735 	std::istringstream	baseCodeBuf					(baseCode);
   1736 	std::ostringstream	resultBuf;
   1737 	std::string			line;
   1738 	bool				firstNonPreprocessorLine	= true;
   1739 	std::ostringstream	extStr;
   1740 
   1741 	generateExtensionStatements(extStr, extensions, shaderType);
   1742 
   1743 	// skip if no requirements
   1744 	if (extStr.str().empty())
   1745 		return baseCode;
   1746 
   1747 	while (std::getline(baseCodeBuf, line))
   1748 	{
   1749 		// begins with '#'?
   1750 		const std::string::size_type	firstNonWhitespace		= line.find_first_not_of("\t ");
   1751 		const bool						isPreprocessorDirective	= (firstNonWhitespace != std::string::npos && line.at(firstNonWhitespace) == '#');
   1752 
   1753 		// Inject #extensions
   1754 		if (!isPreprocessorDirective && firstNonPreprocessorLine)
   1755 		{
   1756 			firstNonPreprocessorLine = false;
   1757 			resultBuf << extStr.str();
   1758 		}
   1759 
   1760 		resultBuf << line << "\n";
   1761 	}
   1762 
   1763 	return resultBuf.str();
   1764 }
   1765 
   1766 void genCompareFunctions (ostringstream& stream, const ValueBlock& valueBlock, bool useFloatTypes)
   1767 {
   1768 	bool cmpTypeFound[TYPE_LAST];
   1769 	for (int i = 0; i < TYPE_LAST; i++)
   1770 		cmpTypeFound[i] = false;
   1771 
   1772 	for (size_t valueNdx = 0; valueNdx < valueBlock.outputs.size(); valueNdx++)
   1773 	{
   1774 		const Value& val = valueBlock.outputs[valueNdx];
   1775 		cmpTypeFound[(size_t)val.type.getBasicType()] = true;
   1776 	}
   1777 
   1778 	if (useFloatTypes)
   1779 	{
   1780 		if (cmpTypeFound[TYPE_BOOL])		stream << "bool isOk (float a, bool b) { return ((a > 0.5) == b); }\n";
   1781 		if (cmpTypeFound[TYPE_BOOL_VEC2])	stream << "bool isOk (vec2 a, bvec2 b) { return (greaterThan(a, vec2(0.5)) == b); }\n";
   1782 		if (cmpTypeFound[TYPE_BOOL_VEC3])	stream << "bool isOk (vec3 a, bvec3 b) { return (greaterThan(a, vec3(0.5)) == b); }\n";
   1783 		if (cmpTypeFound[TYPE_BOOL_VEC4])	stream << "bool isOk (vec4 a, bvec4 b) { return (greaterThan(a, vec4(0.5)) == b); }\n";
   1784 		if (cmpTypeFound[TYPE_INT])			stream << "bool isOk (float a, int b)  { float atemp = a+0.5; return (float(b) <= atemp && atemp <= float(b+1)); }\n";
   1785 		if (cmpTypeFound[TYPE_INT_VEC2])	stream << "bool isOk (vec2 a, ivec2 b) { return (ivec2(floor(a + 0.5)) == b); }\n";
   1786 		if (cmpTypeFound[TYPE_INT_VEC3])	stream << "bool isOk (vec3 a, ivec3 b) { return (ivec3(floor(a + 0.5)) == b); }\n";
   1787 		if (cmpTypeFound[TYPE_INT_VEC4])	stream << "bool isOk (vec4 a, ivec4 b) { return (ivec4(floor(a + 0.5)) == b); }\n";
   1788 		if (cmpTypeFound[TYPE_UINT])		stream << "bool isOk (float a, uint b) { float atemp = a+0.5; return (float(b) <= atemp && atemp <= float(b+1u)); }\n";
   1789 		if (cmpTypeFound[TYPE_UINT_VEC2])	stream << "bool isOk (vec2 a, uvec2 b) { return (uvec2(floor(a + 0.5)) == b); }\n";
   1790 		if (cmpTypeFound[TYPE_UINT_VEC3])	stream << "bool isOk (vec3 a, uvec3 b) { return (uvec3(floor(a + 0.5)) == b); }\n";
   1791 		if (cmpTypeFound[TYPE_UINT_VEC4])	stream << "bool isOk (vec4 a, uvec4 b) { return (uvec4(floor(a + 0.5)) == b); }\n";
   1792 	}
   1793 	else
   1794 	{
   1795 		if (cmpTypeFound[TYPE_BOOL])		stream << "bool isOk (bool a, bool b)   { return (a == b); }\n";
   1796 		if (cmpTypeFound[TYPE_BOOL_VEC2])	stream << "bool isOk (bvec2 a, bvec2 b) { return (a == b); }\n";
   1797 		if (cmpTypeFound[TYPE_BOOL_VEC3])	stream << "bool isOk (bvec3 a, bvec3 b) { return (a == b); }\n";
   1798 		if (cmpTypeFound[TYPE_BOOL_VEC4])	stream << "bool isOk (bvec4 a, bvec4 b) { return (a == b); }\n";
   1799 		if (cmpTypeFound[TYPE_INT])			stream << "bool isOk (int a, int b)     { return (a == b); }\n";
   1800 		if (cmpTypeFound[TYPE_INT_VEC2])	stream << "bool isOk (ivec2 a, ivec2 b) { return (a == b); }\n";
   1801 		if (cmpTypeFound[TYPE_INT_VEC3])	stream << "bool isOk (ivec3 a, ivec3 b) { return (a == b); }\n";
   1802 		if (cmpTypeFound[TYPE_INT_VEC4])	stream << "bool isOk (ivec4 a, ivec4 b) { return (a == b); }\n";
   1803 		if (cmpTypeFound[TYPE_UINT])		stream << "bool isOk (uint a, uint b)   { return (a == b); }\n";
   1804 		if (cmpTypeFound[TYPE_UINT_VEC2])	stream << "bool isOk (uvec2 a, uvec2 b) { return (a == b); }\n";
   1805 		if (cmpTypeFound[TYPE_UINT_VEC3])	stream << "bool isOk (uvec3 a, uvec3 b) { return (a == b); }\n";
   1806 		if (cmpTypeFound[TYPE_UINT_VEC4])	stream << "bool isOk (uvec4 a, uvec4 b) { return (a == b); }\n";
   1807 	}
   1808 
   1809 	if (cmpTypeFound[TYPE_FLOAT])		stream << "bool isOk (float a, float b, float eps) { return (abs(a-b) <= (eps*abs(b) + eps)); }\n";
   1810 	if (cmpTypeFound[TYPE_FLOAT_VEC2])	stream << "bool isOk (vec2 a, vec2 b, float eps) { return all(lessThanEqual(abs(a-b), (eps*abs(b) + eps))); }\n";
   1811 	if (cmpTypeFound[TYPE_FLOAT_VEC3])	stream << "bool isOk (vec3 a, vec3 b, float eps) { return all(lessThanEqual(abs(a-b), (eps*abs(b) + eps))); }\n";
   1812 	if (cmpTypeFound[TYPE_FLOAT_VEC4])	stream << "bool isOk (vec4 a, vec4 b, float eps) { return all(lessThanEqual(abs(a-b), (eps*abs(b) + eps))); }\n";
   1813 
   1814 	if (cmpTypeFound[TYPE_FLOAT_MAT2])		stream << "bool isOk (mat2 a, mat2 b, float eps) { vec2 diff = max(abs(a[0]-b[0]), abs(a[1]-b[1])); return all(lessThanEqual(diff, vec2(eps))); }\n";
   1815 	if (cmpTypeFound[TYPE_FLOAT_MAT2X3])	stream << "bool isOk (mat2x3 a, mat2x3 b, float eps) { vec3 diff = max(abs(a[0]-b[0]), abs(a[1]-b[1])); return all(lessThanEqual(diff, vec3(eps))); }\n";
   1816 	if (cmpTypeFound[TYPE_FLOAT_MAT2X4])	stream << "bool isOk (mat2x4 a, mat2x4 b, float eps) { vec4 diff = max(abs(a[0]-b[0]), abs(a[1]-b[1])); return all(lessThanEqual(diff, vec4(eps))); }\n";
   1817 	if (cmpTypeFound[TYPE_FLOAT_MAT3X2])	stream << "bool isOk (mat3x2 a, mat3x2 b, float eps) { vec2 diff = max(max(abs(a[0]-b[0]), abs(a[1]-b[1])), abs(a[2]-b[2])); return all(lessThanEqual(diff, vec2(eps))); }\n";
   1818 	if (cmpTypeFound[TYPE_FLOAT_MAT3])		stream << "bool isOk (mat3 a, mat3 b, float eps) { vec3 diff = max(max(abs(a[0]-b[0]), abs(a[1]-b[1])), abs(a[2]-b[2])); return all(lessThanEqual(diff, vec3(eps))); }\n";
   1819 	if (cmpTypeFound[TYPE_FLOAT_MAT3X4])	stream << "bool isOk (mat3x4 a, mat3x4 b, float eps) { vec4 diff = max(max(abs(a[0]-b[0]), abs(a[1]-b[1])), abs(a[2]-b[2])); return all(lessThanEqual(diff, vec4(eps))); }\n";
   1820 	if (cmpTypeFound[TYPE_FLOAT_MAT4X2])	stream << "bool isOk (mat4x2 a, mat4x2 b, float eps) { vec2 diff = max(max(abs(a[0]-b[0]), abs(a[1]-b[1])), max(abs(a[2]-b[2]), abs(a[3]-b[3]))); return all(lessThanEqual(diff, vec2(eps))); }\n";
   1821 	if (cmpTypeFound[TYPE_FLOAT_MAT4X3])	stream << "bool isOk (mat4x3 a, mat4x3 b, float eps) { vec3 diff = max(max(abs(a[0]-b[0]), abs(a[1]-b[1])), max(abs(a[2]-b[2]), abs(a[3]-b[3]))); return all(lessThanEqual(diff, vec3(eps))); }\n";
   1822 	if (cmpTypeFound[TYPE_FLOAT_MAT4])		stream << "bool isOk (mat4 a, mat4 b, float eps) { vec4 diff = max(max(abs(a[0]-b[0]), abs(a[1]-b[1])), max(abs(a[2]-b[2]), abs(a[3]-b[3]))); return all(lessThanEqual(diff, vec4(eps))); }\n";
   1823 }
   1824 
   1825 } // sl
   1826 } // glu
   1827