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      1 /*-------------------------------------------------------------------------
      2  * drawElements Quality Program OpenGL ES 3.0 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 Rbo state query tests.
     22  *//*--------------------------------------------------------------------*/
     23 
     24 #include "es3fShaderStateQueryTests.hpp"
     25 #include "glsStateQueryUtil.hpp"
     26 #include "es3fApiCase.hpp"
     27 #include "gluRenderContext.hpp"
     28 #include "glwEnums.hpp"
     29 #include "glwFunctions.hpp"
     30 #include "deRandom.hpp"
     31 #include "deMath.h"
     32 #include "deString.h"
     33 
     34 using namespace glw; // GLint and other GL types
     35 using deqp::gls::StateQueryUtil::StateQueryMemoryWriteGuard;
     36 
     37 namespace deqp
     38 {
     39 namespace gles3
     40 {
     41 namespace Functional
     42 {
     43 namespace
     44 {
     45 
     46 static const char* commonTestVertSource		=	"#version 300 es\n"
     47 												"void main (void)\n"
     48 												"{\n"
     49 												"	gl_Position = vec4(0.0);\n"
     50 												"}\n\0";
     51 static const char* commonTestFragSource		=	"#version 300 es\n"
     52 												"layout(location = 0) out mediump vec4 fragColor;\n"
     53 												"void main (void)\n"
     54 												"{\n"
     55 												"	fragColor = vec4(0.0);\n"
     56 												"}\n\0";
     57 
     58 static const char* brokenShader				=	"#version 300 es\n"
     59 												"broken, this should not compile!\n"
     60 												"\n\0";
     61 
     62 // rounds x.1 to x+1
     63 template <typename T>
     64 T roundGLfloatToNearestIntegerUp (GLfloat val)
     65 {
     66 	return (T)(ceil(val));
     67 }
     68 
     69 // rounds x.9 to x
     70 template <typename T>
     71 T roundGLfloatToNearestIntegerDown (GLfloat val)
     72 {
     73 	return (T)(floor(val));
     74 }
     75 
     76 bool checkIntEquals (tcu::TestContext& testCtx, GLint got, GLint expected)
     77 {
     78 	using tcu::TestLog;
     79 
     80 	if (got != expected)
     81 	{
     82 		testCtx.getLog() << TestLog::Message << "// ERROR: Expected " << expected << "; got " << got << TestLog::EndMessage;
     83 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
     84 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid value");
     85 		return false;
     86 	}
     87 	return true;
     88 }
     89 
     90 void checkPointerEquals (tcu::TestContext& testCtx, const void* got, const void* expected)
     91 {
     92 	using tcu::TestLog;
     93 
     94 	if (got != expected)
     95 	{
     96 		testCtx.getLog() << TestLog::Message << "// ERROR: Expected " << expected << "; got " << got << TestLog::EndMessage;
     97 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
     98 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid value");
     99 	}
    100 }
    101 
    102 void verifyShaderParam (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint shader, GLenum pname, GLenum reference)
    103 {
    104 	StateQueryMemoryWriteGuard<GLint> state;
    105 	gl.glGetShaderiv(shader, pname, &state);
    106 
    107 	if (state.verifyValidity(testCtx))
    108 		checkIntEquals(testCtx, state, reference);
    109 }
    110 
    111 bool verifyProgramParam (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLenum pname, GLenum reference)
    112 {
    113 	StateQueryMemoryWriteGuard<GLint> state;
    114 	gl.glGetProgramiv(program, pname, &state);
    115 
    116 	return state.verifyValidity(testCtx) && checkIntEquals(testCtx, state, reference);
    117 }
    118 
    119 void verifyActiveUniformParam  (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLuint index, GLenum pname, GLenum reference)
    120 {
    121 	StateQueryMemoryWriteGuard<GLint> state;
    122 	gl.glGetActiveUniformsiv(program, 1, &index, pname, &state);
    123 
    124 	if (state.verifyValidity(testCtx))
    125 		checkIntEquals(testCtx, state, reference);
    126 }
    127 
    128 void verifyActiveUniformBlockParam  (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLuint blockIndex, GLenum pname, GLenum reference)
    129 {
    130 	StateQueryMemoryWriteGuard<GLint> state;
    131 	gl.glGetActiveUniformBlockiv(program, blockIndex, pname, &state);
    132 
    133 	if (state.verifyValidity(testCtx))
    134 		checkIntEquals(testCtx, state, reference);
    135 }
    136 
    137 void verifyCurrentVertexAttribf (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
    138 {
    139 	using tcu::TestLog;
    140 
    141 	StateQueryMemoryWriteGuard<GLfloat[4]> attribValue;
    142 	gl.glGetVertexAttribfv(index, GL_CURRENT_VERTEX_ATTRIB, attribValue);
    143 
    144 	attribValue.verifyValidity(testCtx);
    145 
    146 	if (attribValue[0] != x || attribValue[1] != y || attribValue[2] != z || attribValue[3] != w)
    147 	{
    148 		testCtx.getLog() << TestLog::Message
    149 			<< "// ERROR: Expected [" << x << "," << y << "," << z << "," << w << "];"
    150 			<< "got [" << attribValue[0] << "," << attribValue[1] << "," << attribValue[2] << "," << attribValue[3] << "]"
    151 			<< TestLog::EndMessage;
    152 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    153 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid attribute value");
    154 	}
    155 }
    156 
    157 void verifyCurrentVertexAttribIi (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLint index, GLint x, GLint y, GLint z, GLint w)
    158 {
    159 	using tcu::TestLog;
    160 
    161 	StateQueryMemoryWriteGuard<GLint[4]> attribValue;
    162 	gl.glGetVertexAttribIiv(index, GL_CURRENT_VERTEX_ATTRIB, attribValue);
    163 
    164 	attribValue.verifyValidity(testCtx);
    165 
    166 	if (attribValue[0] != x || attribValue[1] != y || attribValue[2] != z || attribValue[3] != w)
    167 	{
    168 		testCtx.getLog() << TestLog::Message
    169 			<< "// ERROR: Expected [" << x << "," << y << "," << z << "," << w << "];"
    170 			<< "got [" << attribValue[0] << "," << attribValue[1] << "," << attribValue[2] << "," << attribValue[3] << "]"
    171 			<< TestLog::EndMessage;
    172 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    173 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid attribute value");
    174 	}
    175 }
    176 
    177 void verifyCurrentVertexAttribIui (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLint index, GLuint x, GLuint y, GLuint z, GLuint w)
    178 {
    179 	using tcu::TestLog;
    180 
    181 	StateQueryMemoryWriteGuard<GLuint[4]> attribValue;
    182 	gl.glGetVertexAttribIuiv(index, GL_CURRENT_VERTEX_ATTRIB, attribValue);
    183 
    184 	attribValue.verifyValidity(testCtx);
    185 
    186 	if (attribValue[0] != x || attribValue[1] != y || attribValue[2] != z || attribValue[3] != w)
    187 	{
    188 		testCtx.getLog() << TestLog::Message
    189 			<< "// ERROR: Expected [" << x << "," << y << "," << z << "," << w << "];"
    190 			<< "got [" << attribValue[0] << "," << attribValue[1] << "," << attribValue[2] << "," << attribValue[3] << "]"
    191 			<< TestLog::EndMessage;
    192 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    193 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid attribute value");
    194 	}
    195 }
    196 
    197 void verifyCurrentVertexAttribConversion (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
    198 {
    199 	using tcu::TestLog;
    200 
    201 	StateQueryMemoryWriteGuard<GLint[4]> attribValue;
    202 	gl.glGetVertexAttribiv(index, GL_CURRENT_VERTEX_ATTRIB, attribValue);
    203 
    204 	attribValue.verifyValidity(testCtx);
    205 
    206 	const GLint referenceAsGLintMin[] =
    207 	{
    208 		roundGLfloatToNearestIntegerDown<GLint>(x),
    209 		roundGLfloatToNearestIntegerDown<GLint>(y),
    210 		roundGLfloatToNearestIntegerDown<GLint>(z),
    211 		roundGLfloatToNearestIntegerDown<GLint>(w)
    212 	};
    213 	const GLint referenceAsGLintMax[] =
    214 	{
    215 		roundGLfloatToNearestIntegerUp<GLint>(x),
    216 		roundGLfloatToNearestIntegerUp<GLint>(y),
    217 		roundGLfloatToNearestIntegerUp<GLint>(z),
    218 		roundGLfloatToNearestIntegerUp<GLint>(w)
    219 	};
    220 
    221 	if (attribValue[0] < referenceAsGLintMin[0] || attribValue[0] > referenceAsGLintMax[0] ||
    222 		attribValue[1] < referenceAsGLintMin[1] || attribValue[1] > referenceAsGLintMax[1] ||
    223 		attribValue[2] < referenceAsGLintMin[2] || attribValue[2] > referenceAsGLintMax[2] ||
    224 		attribValue[3] < referenceAsGLintMin[3] || attribValue[3] > referenceAsGLintMax[3])
    225 	{
    226 		testCtx.getLog() << TestLog::Message
    227 			<< "// ERROR: expected in range "
    228 			<< "[" << referenceAsGLintMin[0] << " " << referenceAsGLintMax[0] << "], "
    229 			<< "[" << referenceAsGLintMin[1] << " " << referenceAsGLintMax[1] << "], "
    230 			<< "[" << referenceAsGLintMin[2] << " " << referenceAsGLintMax[2] << "], "
    231 			<< "[" << referenceAsGLintMin[3] << " " << referenceAsGLintMax[3] << "]"
    232 			<< "; got "
    233 			<< attribValue[0] << ", "
    234 			<< attribValue[1] << ", "
    235 			<< attribValue[2] << ", "
    236 			<< attribValue[3] << " "
    237 			<< "; Input="
    238 			<< x << "; "
    239 			<< y << "; "
    240 			<< z << "; "
    241 			<< w << " " << TestLog::EndMessage;
    242 
    243 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    244 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid attribute value");
    245 	}
    246 }
    247 
    248 void verifyVertexAttrib (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLint index, GLenum pname, GLenum reference)
    249 {
    250 	StateQueryMemoryWriteGuard<GLint> state;
    251 	gl.glGetVertexAttribIiv(index, pname, &state);
    252 
    253 	if (state.verifyValidity(testCtx))
    254 		checkIntEquals(testCtx, state, reference);
    255 }
    256 
    257 void verifyUniformValue1f (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, float x)
    258 {
    259 	using tcu::TestLog;
    260 
    261 	StateQueryMemoryWriteGuard<GLfloat[1]> state;
    262 	gl.glGetUniformfv(program, location, state);
    263 
    264 	if (!state.verifyValidity(testCtx))
    265 		return;
    266 
    267 	if (state[0] != x)
    268 	{
    269 		testCtx.getLog() << TestLog::Message
    270 		<< "// ERROR: expected ["
    271 		<< x
    272 		<< "]; got ["
    273 		<< state[0]
    274 		<< "]"
    275 		<< TestLog::EndMessage;
    276 
    277 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    278 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    279 	}
    280 }
    281 
    282 void verifyUniformValue2f (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, float x, float y)
    283 {
    284 	using tcu::TestLog;
    285 
    286 	StateQueryMemoryWriteGuard<GLfloat[2]> state;
    287 	gl.glGetUniformfv(program, location, state);
    288 
    289 	if (!state.verifyValidity(testCtx))
    290 		return;
    291 
    292 	if (state[0] != x ||
    293 		state[1] != y)
    294 	{
    295 		testCtx.getLog() << TestLog::Message
    296 		<< "// ERROR: expected ["
    297 		<< x << ", "
    298 		<< y
    299 		<< "]; got ["
    300 		<< state[0] << ", "
    301 		<< state[1]
    302 		<< "]"
    303 		<< TestLog::EndMessage;
    304 
    305 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    306 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    307 	}
    308 }
    309 
    310 void verifyUniformValue3f (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, float x, float y, float z)
    311 {
    312 	using tcu::TestLog;
    313 
    314 	StateQueryMemoryWriteGuard<GLfloat[3]> state;
    315 	gl.glGetUniformfv(program, location, state);
    316 
    317 	if (!state.verifyValidity(testCtx))
    318 		return;
    319 
    320 	if (state[0] != x ||
    321 		state[1] != y ||
    322 		state[2] != z)
    323 	{
    324 		testCtx.getLog() << TestLog::Message
    325 		<< "// ERROR: expected ["
    326 		<< x << ", "
    327 		<< y << ", "
    328 		<< z
    329 		<< "]; got ["
    330 		<< state[0] << ", "
    331 		<< state[1] << ", "
    332 		<< state[2]
    333 		<< "]"
    334 		<< TestLog::EndMessage;
    335 
    336 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    337 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    338 	}
    339 }
    340 
    341 void verifyUniformValue4f (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, float x, float y, float z, float w)
    342 {
    343 	using tcu::TestLog;
    344 
    345 	StateQueryMemoryWriteGuard<GLfloat[4]> state;
    346 	gl.glGetUniformfv(program, location, state);
    347 
    348 	if (!state.verifyValidity(testCtx))
    349 		return;
    350 
    351 	if (state[0] != x ||
    352 		state[1] != y ||
    353 		state[2] != z ||
    354 		state[3] != w)
    355 	{
    356 		testCtx.getLog() << TestLog::Message
    357 		<< "// ERROR: expected ["
    358 		<< x << ", "
    359 		<< y << ", "
    360 		<< z << ", "
    361 		<< w
    362 		<< "]; got ["
    363 		<< state[0] << ", "
    364 		<< state[1] << ", "
    365 		<< state[2] << ", "
    366 		<< state[3]
    367 		<< "]"
    368 		<< TestLog::EndMessage;
    369 
    370 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    371 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    372 	}
    373 }
    374 
    375 void verifyUniformValue1i (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLint x)
    376 {
    377 	using tcu::TestLog;
    378 
    379 	StateQueryMemoryWriteGuard<GLint[1]> state;
    380 	gl.glGetUniformiv(program, location, state);
    381 
    382 	if (!state.verifyValidity(testCtx))
    383 		return;
    384 
    385 	if (state[0] != x)
    386 	{
    387 		testCtx.getLog() << TestLog::Message
    388 		<< "// ERROR: expected ["
    389 		<< x
    390 		<< "]; got ["
    391 		<< state[0]
    392 		<< "]"
    393 		<< TestLog::EndMessage;
    394 
    395 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    396 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    397 	}
    398 }
    399 
    400 void verifyUniformValue2i (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLint x, GLint y)
    401 {
    402 	using tcu::TestLog;
    403 
    404 	StateQueryMemoryWriteGuard<GLint[2]> state;
    405 	gl.glGetUniformiv(program, location, state);
    406 
    407 	if (!state.verifyValidity(testCtx))
    408 		return;
    409 
    410 	if (state[0] != x ||
    411 		state[1] != y)
    412 	{
    413 		testCtx.getLog() << TestLog::Message
    414 		<< "// ERROR: expected ["
    415 		<< x << ", "
    416 		<< y
    417 		<< "]; got ["
    418 		<< state[0] << ", "
    419 		<< state[1]
    420 		<< "]"
    421 		<< TestLog::EndMessage;
    422 
    423 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    424 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    425 	}
    426 }
    427 
    428 void verifyUniformValue3i (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLint x, GLint y, GLint z)
    429 {
    430 	using tcu::TestLog;
    431 
    432 	StateQueryMemoryWriteGuard<GLint[3]> state;
    433 	gl.glGetUniformiv(program, location, state);
    434 
    435 	if (!state.verifyValidity(testCtx))
    436 		return;
    437 
    438 	if (state[0] != x ||
    439 		state[1] != y ||
    440 		state[2] != z)
    441 	{
    442 		testCtx.getLog() << TestLog::Message
    443 		<< "// ERROR: expected ["
    444 		<< x << ", "
    445 		<< y << ", "
    446 		<< z
    447 		<< "]; got ["
    448 		<< state[0] << ", "
    449 		<< state[1] << ", "
    450 		<< state[2]
    451 		<< "]"
    452 		<< TestLog::EndMessage;
    453 
    454 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    455 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    456 	}
    457 }
    458 
    459 void verifyUniformValue4i (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLint x, GLint y, GLint z, GLint w)
    460 {
    461 	using tcu::TestLog;
    462 
    463 	StateQueryMemoryWriteGuard<GLint[4]> state;
    464 	gl.glGetUniformiv(program, location, state);
    465 
    466 	if (!state.verifyValidity(testCtx))
    467 		return;
    468 
    469 	if (state[0] != x ||
    470 		state[1] != y ||
    471 		state[2] != z ||
    472 		state[3] != w)
    473 	{
    474 		testCtx.getLog() << TestLog::Message
    475 		<< "// ERROR: expected ["
    476 		<< x << ", "
    477 		<< y << ", "
    478 		<< z << ", "
    479 		<< w
    480 		<< "]; got ["
    481 		<< state[0] << ", "
    482 		<< state[1] << ", "
    483 		<< state[2] << ", "
    484 		<< state[3]
    485 		<< "]"
    486 		<< TestLog::EndMessage;
    487 
    488 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    489 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    490 	}
    491 }
    492 
    493 void verifyUniformValue1ui (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLuint x)
    494 {
    495 	using tcu::TestLog;
    496 
    497 	StateQueryMemoryWriteGuard<GLuint[1]> state;
    498 	gl.glGetUniformuiv(program, location, state);
    499 
    500 	if (!state.verifyValidity(testCtx))
    501 		return;
    502 
    503 	if (state[0] != x)
    504 	{
    505 		testCtx.getLog() << TestLog::Message
    506 		<< "// ERROR: expected ["
    507 		<< x
    508 		<< "]; got ["
    509 		<< state[0]
    510 		<< "]"
    511 		<< TestLog::EndMessage;
    512 
    513 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    514 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    515 	}
    516 }
    517 
    518 void verifyUniformValue2ui (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLuint x, GLuint y)
    519 {
    520 	using tcu::TestLog;
    521 
    522 	StateQueryMemoryWriteGuard<GLuint[2]> state;
    523 	gl.glGetUniformuiv(program, location, state);
    524 
    525 	if (!state.verifyValidity(testCtx))
    526 		return;
    527 
    528 	if (state[0] != x ||
    529 		state[1] != y)
    530 	{
    531 		testCtx.getLog() << TestLog::Message
    532 		<< "// ERROR: expected ["
    533 		<< x << ", "
    534 		<< y
    535 		<< "]; got ["
    536 		<< state[0] << ", "
    537 		<< state[1]
    538 		<< "]"
    539 		<< TestLog::EndMessage;
    540 
    541 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    542 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    543 	}
    544 }
    545 
    546 void verifyUniformValue3ui (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLuint x, GLuint y, GLuint z)
    547 {
    548 	using tcu::TestLog;
    549 
    550 	StateQueryMemoryWriteGuard<GLuint[3]> state;
    551 	gl.glGetUniformuiv(program, location, state);
    552 
    553 	if (!state.verifyValidity(testCtx))
    554 		return;
    555 
    556 	if (state[0] != x ||
    557 		state[1] != y ||
    558 		state[2] != z)
    559 	{
    560 		testCtx.getLog() << TestLog::Message
    561 		<< "// ERROR: expected ["
    562 		<< x << ", "
    563 		<< y << ", "
    564 		<< z
    565 		<< "]; got ["
    566 		<< state[0] << ", "
    567 		<< state[1] << ", "
    568 		<< state[2]
    569 		<< "]"
    570 		<< TestLog::EndMessage;
    571 
    572 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    573 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    574 	}
    575 }
    576 
    577 void verifyUniformValue4ui (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, GLuint x, GLuint y, GLuint z, GLuint w)
    578 {
    579 	using tcu::TestLog;
    580 
    581 	StateQueryMemoryWriteGuard<GLuint[4]> state;
    582 	gl.glGetUniformuiv(program, location, state);
    583 
    584 	if (!state.verifyValidity(testCtx))
    585 		return;
    586 
    587 	if (state[0] != x ||
    588 		state[1] != y ||
    589 		state[2] != z ||
    590 		state[3] != w)
    591 	{
    592 		testCtx.getLog() << TestLog::Message
    593 		<< "// ERROR: expected ["
    594 		<< x << ", "
    595 		<< y << ", "
    596 		<< z << ", "
    597 		<< w
    598 		<< "]; got ["
    599 		<< state[0] << ", "
    600 		<< state[1] << ", "
    601 		<< state[2] << ", "
    602 		<< state[3]
    603 		<< "]"
    604 		<< TestLog::EndMessage;
    605 
    606 		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    607 			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    608 	}
    609 }
    610 
    611 template <int Count>
    612 void verifyUniformValues (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, const GLfloat* values)
    613 {
    614 	using tcu::TestLog;
    615 
    616 	StateQueryMemoryWriteGuard<GLfloat[Count]> state;
    617 	gl.glGetUniformfv(program, location, state);
    618 
    619 	if (!state.verifyValidity(testCtx))
    620 		return;
    621 
    622 	for (int ndx = 0; ndx < Count; ++ndx)
    623 	{
    624 		if (values[ndx] != state[ndx])
    625 		{
    626 			testCtx.getLog() << TestLog::Message << "// ERROR: at index " << ndx << " expected " << values[ndx] << "; got " << state[ndx] << TestLog::EndMessage;
    627 
    628 			if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    629 				testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    630 		}
    631 	}
    632 }
    633 
    634 template <int N>
    635 void verifyUniformMatrixValues (tcu::TestContext& testCtx, glu::CallLogWrapper& gl, GLuint program, GLint location, const GLfloat* values, bool transpose)
    636 {
    637 	using tcu::TestLog;
    638 
    639 	StateQueryMemoryWriteGuard<GLfloat[N*N]> state;
    640 	gl.glGetUniformfv(program, location, state);
    641 
    642 	if (!state.verifyValidity(testCtx))
    643 		return;
    644 
    645 	for (int y = 0; y < N; ++y)
    646 		for (int x = 0; x < N; ++x)
    647 		{
    648 			const int refIndex = y*N + x;
    649 			const int stateIndex = transpose ? (x*N + y) : (y*N + x);
    650 
    651 			if (values[refIndex] != state[stateIndex])
    652 			{
    653 				testCtx.getLog() << TestLog::Message << "// ERROR: at index [" << y << "][" << x << "] expected " << values[refIndex] << "; got " << state[stateIndex] << TestLog::EndMessage;
    654 
    655 				if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    656 					testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid uniform value");
    657 			}
    658 		}
    659 }
    660 
    661 class ShaderTypeCase : public ApiCase
    662 {
    663 public:
    664 	ShaderTypeCase (Context& context, const char* name, const char* description)
    665 		: ApiCase(context, name, description)
    666 	{
    667 	}
    668 
    669 	void test (void)
    670 	{
    671 		const GLenum shaderTypes[] = {GL_VERTEX_SHADER, GL_FRAGMENT_SHADER};
    672 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(shaderTypes); ++ndx)
    673 		{
    674 			const GLuint shader = glCreateShader(shaderTypes[ndx]);
    675 			verifyShaderParam(m_testCtx, *this, shader, GL_SHADER_TYPE, shaderTypes[ndx]);
    676 			glDeleteShader(shader);
    677 		}
    678 	}
    679 };
    680 
    681 class ShaderCompileStatusCase : public ApiCase
    682 {
    683 public:
    684 	ShaderCompileStatusCase (Context& context, const char* name, const char* description)
    685 		: ApiCase(context, name, description)
    686 	{
    687 	}
    688 
    689 	void test (void)
    690 	{
    691 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
    692 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
    693 
    694 		verifyShaderParam(m_testCtx, *this, shaderVert, GL_COMPILE_STATUS, GL_FALSE);
    695 		verifyShaderParam(m_testCtx, *this, shaderFrag, GL_COMPILE_STATUS, GL_FALSE);
    696 
    697 		glShaderSource(shaderVert, 1, &commonTestVertSource, DE_NULL);
    698 		glShaderSource(shaderFrag, 1, &commonTestFragSource, DE_NULL);
    699 
    700 		glCompileShader(shaderVert);
    701 		glCompileShader(shaderFrag);
    702 		expectError(GL_NO_ERROR);
    703 
    704 		verifyShaderParam(m_testCtx, *this, shaderVert, GL_COMPILE_STATUS, GL_TRUE);
    705 		verifyShaderParam(m_testCtx, *this, shaderFrag, GL_COMPILE_STATUS, GL_TRUE);
    706 
    707 		glDeleteShader(shaderVert);
    708 		glDeleteShader(shaderFrag);
    709 		expectError(GL_NO_ERROR);
    710 	}
    711 };
    712 
    713 class ShaderInfoLogCase : public ApiCase
    714 {
    715 public:
    716 	ShaderInfoLogCase (Context& context, const char* name, const char* description)
    717 		: ApiCase(context, name, description)
    718 	{
    719 	}
    720 
    721 	void test (void)
    722 	{
    723 		using tcu::TestLog;
    724 
    725 		// INFO_LOG_LENGTH is 0 by default and it includes null-terminator
    726 		const GLuint shader = glCreateShader(GL_VERTEX_SHADER);
    727 		verifyShaderParam(m_testCtx, *this, shader, GL_INFO_LOG_LENGTH, 0);
    728 
    729 		glShaderSource(shader, 1, &brokenShader, DE_NULL);
    730 		glCompileShader(shader);
    731 		expectError(GL_NO_ERROR);
    732 
    733 		// check the log length
    734 		StateQueryMemoryWriteGuard<GLint> logLength;
    735 		glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLength);
    736 		if (!logLength.verifyValidity(m_testCtx))
    737 		{
    738 			glDeleteShader(shader);
    739 			return;
    740 		}
    741 		if (logLength == 0)
    742 		{
    743 			glDeleteShader(shader);
    744 			return;
    745 		}
    746 
    747 		// check normal case
    748 		{
    749 			char buffer[2048] = {'x'}; // non-zero initialization
    750 
    751 			GLint written = 0; // written does not include null terminator
    752 			glGetShaderInfoLog(shader, DE_LENGTH_OF_ARRAY(buffer), &written, buffer);
    753 
    754 			// check lengths are consistent
    755 			if (logLength <= DE_LENGTH_OF_ARRAY(buffer))
    756 			{
    757 				if (written != logLength-1)
    758 				{
    759 					m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected length " << logLength-1 << "; got " << written << TestLog::EndMessage;
    760 					if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    761 						m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid log length");
    762 				}
    763 			}
    764 
    765 			// check null-terminator, either at end of buffer or at buffer[written]
    766 			const char* terminator = &buffer[DE_LENGTH_OF_ARRAY(buffer) - 1];
    767 			if (logLength < DE_LENGTH_OF_ARRAY(buffer))
    768 				terminator = &buffer[written];
    769 
    770 			if (*terminator != '\0')
    771 			{
    772 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected null terminator, got " << (int)*terminator << TestLog::EndMessage;
    773 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    774 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid log terminator");
    775 			}
    776 		}
    777 
    778 		// check with too small buffer
    779 		{
    780 			char buffer[2048] = {'x'}; // non-zero initialization
    781 
    782 			// check string always ends with \0, even with small buffers
    783 			GLint written = 0;
    784 			glGetShaderInfoLog(shader, 1, &written, buffer);
    785 			if (written != 0)
    786 			{
    787 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected length 0; got " << written << TestLog::EndMessage;
    788 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    789 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid log length");
    790 			}
    791 			if (buffer[0] != '\0')
    792 			{
    793 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected null terminator, got " << (int)buffer[0] << TestLog::EndMessage;
    794 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    795 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid log terminator");
    796 			}
    797 		}
    798 
    799 		glDeleteShader(shader);
    800 		expectError(GL_NO_ERROR);
    801 	}
    802 };
    803 
    804 class ShaderSourceCase : public ApiCase
    805 {
    806 public:
    807 	ShaderSourceCase (Context& context, const char* name, const char* description)
    808 		: ApiCase(context, name, description)
    809 	{
    810 	}
    811 
    812 	void test (void)
    813 	{
    814 		using tcu::TestLog;
    815 
    816 		// SHADER_SOURCE_LENGTH does include 0-terminator
    817 		const GLuint shader = glCreateShader(GL_VERTEX_SHADER);
    818 		verifyShaderParam(m_testCtx, *this, shader, GL_SHADER_SOURCE_LENGTH, 0);
    819 
    820 		// check the SHADER_SOURCE_LENGTH
    821 		{
    822 			glShaderSource(shader, 1, &brokenShader, DE_NULL);
    823 			expectError(GL_NO_ERROR);
    824 
    825 			StateQueryMemoryWriteGuard<GLint> sourceLength;
    826 			glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &sourceLength);
    827 
    828 			sourceLength.verifyValidity(m_testCtx);
    829 
    830 			const GLint referenceLength = (GLint)std::string(brokenShader).length() + 1; // including the null terminator
    831 			if (sourceLength != referenceLength)
    832 			{
    833 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected length " << referenceLength	<< "; got " << sourceLength << TestLog::EndMessage;
    834 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    835 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid source length");
    836 			}
    837 		}
    838 
    839 		// check the concat source SHADER_SOURCE_LENGTH
    840 		{
    841 			const char* shaders[] = {brokenShader, brokenShader};
    842 			glShaderSource(shader, 2, shaders, DE_NULL);
    843 			expectError(GL_NO_ERROR);
    844 
    845 			StateQueryMemoryWriteGuard<GLint> sourceLength;
    846 			glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &sourceLength);
    847 
    848 			sourceLength.verifyValidity(m_testCtx);
    849 
    850 			const GLint referenceLength = 2 * (GLint)std::string(brokenShader).length() + 1; // including the null terminator
    851 			if (sourceLength != referenceLength)
    852 			{
    853 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected length " << referenceLength << "; got " << sourceLength << TestLog::EndMessage;
    854 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    855 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid source length");
    856 			}
    857 		}
    858 
    859 		// check the string length
    860 		{
    861 			char buffer[2048] = {'x'};
    862 			DE_ASSERT(DE_LENGTH_OF_ARRAY(buffer) > 2 * (int)std::string(brokenShader).length());
    863 
    864 			GLint written = 0; // not inluding null-terminator
    865 			glGetShaderSource(shader, DE_LENGTH_OF_ARRAY(buffer), &written, buffer);
    866 
    867 			const GLint referenceLength = 2 * (GLint)std::string(brokenShader).length();
    868 			if (written != referenceLength)
    869 			{
    870 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected write length " << referenceLength << "; got " << written << TestLog::EndMessage;
    871 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    872 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid source length");
    873 			}
    874 			// check null pointer at
    875 			else
    876 			{
    877 				if (buffer[referenceLength] != '\0')
    878 				{
    879 					m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected null terminator at " << referenceLength << TestLog::EndMessage;
    880 					if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    881 						m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "did not get a null terminator");
    882 				}
    883 			}
    884 		}
    885 
    886 		// check with small buffer
    887 		{
    888 			char buffer[2048] = {'x'};
    889 
    890 			GLint written = 0;
    891 			glGetShaderSource(shader, 1, &written, buffer);
    892 
    893 			if (written != 0)
    894 			{
    895 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected write length 0; got " << written << TestLog::EndMessage;
    896 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    897 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid source length");
    898 			}
    899 			if (buffer[0] != '\0')
    900 			{
    901 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected null terminator; got=" << int(buffer[0]) << ", char=" << buffer[0] << TestLog::EndMessage;
    902 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    903 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid terminator");
    904 			}
    905 		}
    906 
    907 		glDeleteShader(shader);
    908 		expectError(GL_NO_ERROR);
    909 	}
    910 };
    911 
    912 class DeleteStatusCase : public ApiCase
    913 {
    914 public:
    915 	DeleteStatusCase (Context& context, const char* name, const char* description)
    916 		: ApiCase(context, name, description)
    917 	{
    918 	}
    919 
    920 	void test (void)
    921 	{
    922 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
    923 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
    924 
    925 		glShaderSource(shaderVert, 1, &commonTestVertSource, DE_NULL);
    926 		glShaderSource(shaderFrag, 1, &commonTestFragSource, DE_NULL);
    927 
    928 		glCompileShader(shaderVert);
    929 		glCompileShader(shaderFrag);
    930 		expectError(GL_NO_ERROR);
    931 
    932 		verifyShaderParam(m_testCtx, *this, shaderVert, GL_COMPILE_STATUS, GL_TRUE);
    933 		verifyShaderParam(m_testCtx, *this, shaderFrag, GL_COMPILE_STATUS, GL_TRUE);
    934 
    935 		GLuint shaderProg = glCreateProgram();
    936 		glAttachShader(shaderProg, shaderVert);
    937 		glAttachShader(shaderProg, shaderFrag);
    938 		glLinkProgram(shaderProg);
    939 		expectError(GL_NO_ERROR);
    940 
    941 		verifyProgramParam	(m_testCtx, *this, shaderProg, GL_LINK_STATUS, GL_TRUE);
    942 
    943 		verifyShaderParam	(m_testCtx, *this, shaderVert, GL_DELETE_STATUS, GL_FALSE);
    944 		verifyShaderParam	(m_testCtx, *this, shaderFrag, GL_DELETE_STATUS, GL_FALSE);
    945 		verifyProgramParam	(m_testCtx, *this, shaderProg, GL_DELETE_STATUS, GL_FALSE);
    946 		expectError(GL_NO_ERROR);
    947 
    948 		glUseProgram(shaderProg);
    949 
    950 		glDeleteShader(shaderVert);
    951 		glDeleteShader(shaderFrag);
    952 		glDeleteProgram(shaderProg);
    953 		expectError(GL_NO_ERROR);
    954 
    955 		verifyShaderParam	(m_testCtx, *this, shaderVert, GL_DELETE_STATUS, GL_TRUE);
    956 		verifyShaderParam	(m_testCtx, *this, shaderFrag, GL_DELETE_STATUS, GL_TRUE);
    957 		verifyProgramParam	(m_testCtx, *this, shaderProg, GL_DELETE_STATUS, GL_TRUE);
    958 		expectError(GL_NO_ERROR);
    959 
    960 		glUseProgram(0);
    961 		expectError(GL_NO_ERROR);
    962 	}
    963 };
    964 
    965 class CurrentVertexAttribInitialCase : public ApiCase
    966 {
    967 public:
    968 	CurrentVertexAttribInitialCase (Context& context, const char* name, const char* description)
    969 		: ApiCase(context, name, description)
    970 	{
    971 	}
    972 
    973 	void test (void)
    974 	{
    975 		using tcu::TestLog;
    976 
    977 		int attribute_count = 16;
    978 		glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &attribute_count);
    979 
    980 		// initial
    981 
    982 		for (int index = 0; index < attribute_count; ++index)
    983 		{
    984 			StateQueryMemoryWriteGuard<GLfloat[4]> attribValue;
    985 			glGetVertexAttribfv(index, GL_CURRENT_VERTEX_ATTRIB, attribValue);
    986 			attribValue.verifyValidity(m_testCtx);
    987 
    988 			if (attribValue[0] != 0.0f || attribValue[1] != 0.0f || attribValue[2] != 0.0f || attribValue[3] != 1.0f)
    989 			{
    990 				m_testCtx.getLog() << TestLog::Message
    991 					<< "// ERROR: Expected [0, 0, 0, 1];"
    992 					<< "got [" << attribValue[0] << "," << attribValue[1] << "," << attribValue[2] << "," << attribValue[3] << "]"
    993 					<< TestLog::EndMessage;
    994 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
    995 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid attribute value");
    996 			}
    997 		}
    998 	}
    999 };
   1000 
   1001 class CurrentVertexAttribFloatCase : public ApiCase
   1002 {
   1003 public:
   1004 	CurrentVertexAttribFloatCase (Context& context, const char* name, const char* description)
   1005 		: ApiCase(context, name, description)
   1006 	{
   1007 	}
   1008 
   1009 	void test (void)
   1010 	{
   1011 		using tcu::TestLog;
   1012 
   1013 		de::Random rnd(0xabcdef);
   1014 
   1015 		int attribute_count = 16;
   1016 		glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &attribute_count);
   1017 
   1018 		// test write float/read float
   1019 
   1020 		for (int index = 0; index < attribute_count; ++index)
   1021 		{
   1022 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1023 			const GLfloat y = rnd.getFloat(-64000, 64000);
   1024 			const GLfloat z = rnd.getFloat(-64000, 64000);
   1025 			const GLfloat w = rnd.getFloat(-64000, 64000);
   1026 
   1027 			glVertexAttrib4f(index, x, y, z, w);
   1028 			verifyCurrentVertexAttribf(m_testCtx, *this, index, x, y, z, w);
   1029 		}
   1030 		for (int index = 0; index < attribute_count; ++index)
   1031 		{
   1032 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1033 			const GLfloat y = rnd.getFloat(-64000, 64000);
   1034 			const GLfloat z = rnd.getFloat(-64000, 64000);
   1035 			const GLfloat w = 1.0f;
   1036 
   1037 			glVertexAttrib3f(index, x, y, z);
   1038 			verifyCurrentVertexAttribf(m_testCtx, *this, index, x, y, z, w);
   1039 		}
   1040 		for (int index = 0; index < attribute_count; ++index)
   1041 		{
   1042 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1043 			const GLfloat y = rnd.getFloat(-64000, 64000);
   1044 			const GLfloat z = 0.0f;
   1045 			const GLfloat w = 1.0f;
   1046 
   1047 			glVertexAttrib2f(index, x, y);
   1048 			verifyCurrentVertexAttribf(m_testCtx, *this, index, x, y, z, w);
   1049 		}
   1050 		for (int index = 0; index < attribute_count; ++index)
   1051 		{
   1052 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1053 			const GLfloat y = 0.0f;
   1054 			const GLfloat z = 0.0f;
   1055 			const GLfloat w = 1.0f;
   1056 
   1057 			glVertexAttrib1f(index, x);
   1058 			verifyCurrentVertexAttribf(m_testCtx, *this, index, x, y, z, w);
   1059 		}
   1060 	}
   1061 };
   1062 
   1063 class CurrentVertexAttribIntCase : public ApiCase
   1064 {
   1065 public:
   1066 	CurrentVertexAttribIntCase (Context& context, const char* name, const char* description)
   1067 		: ApiCase(context, name, description)
   1068 	{
   1069 	}
   1070 
   1071 	void test (void)
   1072 	{
   1073 		using tcu::TestLog;
   1074 
   1075 		de::Random rnd(0xabcdef);
   1076 
   1077 		int attribute_count = 16;
   1078 		glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &attribute_count);
   1079 
   1080 		// test write float/read float
   1081 
   1082 		for (int index = 0; index < attribute_count; ++index)
   1083 		{
   1084 			const GLint x = rnd.getInt(-64000, 64000);
   1085 			const GLint y = rnd.getInt(-64000, 64000);
   1086 			const GLint z = rnd.getInt(-64000, 64000);
   1087 			const GLint w = rnd.getInt(-64000, 64000);
   1088 
   1089 			glVertexAttribI4i(index, x, y, z, w);
   1090 			verifyCurrentVertexAttribIi(m_testCtx, *this, index, x, y, z, w);
   1091 		}
   1092 	}
   1093 };
   1094 
   1095 class CurrentVertexAttribUintCase : public ApiCase
   1096 {
   1097 public:
   1098 	CurrentVertexAttribUintCase (Context& context, const char* name, const char* description)
   1099 		: ApiCase(context, name, description)
   1100 	{
   1101 	}
   1102 
   1103 	void test (void)
   1104 	{
   1105 		using tcu::TestLog;
   1106 
   1107 		de::Random rnd(0xabcdef);
   1108 
   1109 		int attribute_count = 16;
   1110 		glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &attribute_count);
   1111 
   1112 		// test write float/read float
   1113 
   1114 		for (int index = 0; index < attribute_count; ++index)
   1115 		{
   1116 			const GLuint x = rnd.getInt(0, 64000);
   1117 			const GLuint y = rnd.getInt(0, 64000);
   1118 			const GLuint z = rnd.getInt(0, 64000);
   1119 			const GLuint w = rnd.getInt(0, 64000);
   1120 
   1121 			glVertexAttribI4ui(index, x, y, z, w);
   1122 			verifyCurrentVertexAttribIui(m_testCtx, *this, index, x, y, z, w);
   1123 		}
   1124 	}
   1125 };
   1126 
   1127 class CurrentVertexAttribConversionCase : public ApiCase
   1128 {
   1129 public:
   1130 	CurrentVertexAttribConversionCase (Context& context, const char* name, const char* description)
   1131 		: ApiCase(context, name, description)
   1132 	{
   1133 	}
   1134 
   1135 	void test (void)
   1136 	{
   1137 		using tcu::TestLog;
   1138 
   1139 		de::Random rnd(0xabcdef);
   1140 
   1141 		int attribute_count = 16;
   1142 		glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &attribute_count);
   1143 
   1144 		// test write float/read float
   1145 
   1146 		for (int index = 0; index < attribute_count; ++index)
   1147 		{
   1148 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1149 			const GLfloat y = rnd.getFloat(-64000, 64000);
   1150 			const GLfloat z = rnd.getFloat(-64000, 64000);
   1151 			const GLfloat w = rnd.getFloat(-64000, 64000);
   1152 
   1153 			glVertexAttrib4f(index, x, y, z, w);
   1154 			verifyCurrentVertexAttribConversion(m_testCtx, *this, index, x, y, z, w);
   1155 		}
   1156 		for (int index = 0; index < attribute_count; ++index)
   1157 		{
   1158 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1159 			const GLfloat y = rnd.getFloat(-64000, 64000);
   1160 			const GLfloat z = rnd.getFloat(-64000, 64000);
   1161 			const GLfloat w = 1.0f;
   1162 
   1163 			glVertexAttrib3f(index, x, y, z);
   1164 			verifyCurrentVertexAttribConversion(m_testCtx, *this, index, x, y, z, w);
   1165 		}
   1166 		for (int index = 0; index < attribute_count; ++index)
   1167 		{
   1168 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1169 			const GLfloat y = rnd.getFloat(-64000, 64000);
   1170 			const GLfloat z = 0.0f;
   1171 			const GLfloat w = 1.0f;
   1172 
   1173 			glVertexAttrib2f(index, x, y);
   1174 			verifyCurrentVertexAttribConversion(m_testCtx, *this, index, x, y, z, w);
   1175 		}
   1176 		for (int index = 0; index < attribute_count; ++index)
   1177 		{
   1178 			const GLfloat x = rnd.getFloat(-64000, 64000);
   1179 			const GLfloat y = 0.0f;
   1180 			const GLfloat z = 0.0f;
   1181 			const GLfloat w = 1.0f;
   1182 
   1183 			glVertexAttrib1f(index, x);
   1184 			verifyCurrentVertexAttribConversion(m_testCtx, *this, index, x, y, z, w);
   1185 		}
   1186 	}
   1187 };
   1188 
   1189 class ProgramInfoLogCase : public ApiCase
   1190 {
   1191 public:
   1192 	ProgramInfoLogCase (Context& context, const char* name, const char* description)
   1193 		: ApiCase(context, name, description)
   1194 	{
   1195 	}
   1196 
   1197 	void test (void)
   1198 	{
   1199 		using tcu::TestLog;
   1200 
   1201 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1202 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1203 
   1204 		glShaderSource(shaderVert, 1, &brokenShader, DE_NULL);
   1205 		glShaderSource(shaderFrag, 1, &brokenShader, DE_NULL);
   1206 
   1207 		glCompileShader(shaderVert);
   1208 		glCompileShader(shaderFrag);
   1209 		expectError(GL_NO_ERROR);
   1210 
   1211 		GLuint program = glCreateProgram();
   1212 		glAttachShader(program, shaderVert);
   1213 		glAttachShader(program, shaderFrag);
   1214 		glLinkProgram(program);
   1215 
   1216 		// check INFO_LOG_LENGTH == GetProgramInfoLog len
   1217 		{
   1218 			char buffer[2048] = {'x'};
   1219 
   1220 			GLint written = 0;
   1221 			glGetProgramInfoLog(program, DE_LENGTH_OF_ARRAY(buffer), &written, buffer);
   1222 
   1223 			StateQueryMemoryWriteGuard<GLint> logLength;
   1224 			glGetProgramiv(program, GL_INFO_LOG_LENGTH, &logLength);
   1225 			logLength.verifyValidity(m_testCtx);
   1226 
   1227 			if (logLength != 0 && written+1 != logLength) // INFO_LOG_LENGTH contains 0-terminator
   1228 			{
   1229 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected INFO_LOG_LENGTH " << written+1 << "; got " << logLength << TestLog::EndMessage;
   1230 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1231 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid log length");
   1232 			}
   1233 		}
   1234 
   1235 		// check GetProgramInfoLog works with too small buffer
   1236 		{
   1237 			char buffer[2048] = {'x'};
   1238 
   1239 			GLint written = 0;
   1240 			glGetProgramInfoLog(program, 1, &written, buffer);
   1241 
   1242 			if (written != 0)
   1243 			{
   1244 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected write length 0; got " << written << TestLog::EndMessage;
   1245 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1246 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid log length");
   1247 			}
   1248 		}
   1249 
   1250 		glDeleteShader(shaderVert);
   1251 		glDeleteShader(shaderFrag);
   1252 		glDeleteProgram(program);
   1253 		expectError(GL_NO_ERROR);
   1254 	}
   1255 };
   1256 
   1257 class ProgramValidateStatusCase : public ApiCase
   1258 {
   1259 public:
   1260 	ProgramValidateStatusCase (Context& context, const char* name, const char* description)
   1261 		: ApiCase(context, name, description)
   1262 	{
   1263 	}
   1264 
   1265 	void test (void)
   1266 	{
   1267 		// test validate ok
   1268 		{
   1269 			GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1270 			GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1271 
   1272 			glShaderSource(shaderVert, 1, &commonTestVertSource, DE_NULL);
   1273 			glShaderSource(shaderFrag, 1, &commonTestFragSource, DE_NULL);
   1274 
   1275 			glCompileShader(shaderVert);
   1276 			glCompileShader(shaderFrag);
   1277 			expectError(GL_NO_ERROR);
   1278 
   1279 			GLuint program = glCreateProgram();
   1280 			glAttachShader(program, shaderVert);
   1281 			glAttachShader(program, shaderFrag);
   1282 			glLinkProgram(program);
   1283 			expectError(GL_NO_ERROR);
   1284 
   1285 			verifyShaderParam	(m_testCtx, *this, shaderVert,	GL_COMPILE_STATUS,	GL_TRUE);
   1286 			verifyShaderParam	(m_testCtx, *this, shaderFrag,	GL_COMPILE_STATUS,	GL_TRUE);
   1287 			verifyProgramParam	(m_testCtx, *this, program,		GL_LINK_STATUS,		GL_TRUE);
   1288 
   1289 			glValidateProgram(program);
   1290 			verifyProgramParam(m_testCtx, *this, program, GL_VALIDATE_STATUS, GL_TRUE);
   1291 
   1292 			glDeleteShader(shaderVert);
   1293 			glDeleteShader(shaderFrag);
   1294 			glDeleteProgram(program);
   1295 			expectError(GL_NO_ERROR);
   1296 		}
   1297 
   1298 		// test with broken shader
   1299 		{
   1300 			GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1301 			GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1302 
   1303 			glShaderSource(shaderVert, 1, &commonTestVertSource,	DE_NULL);
   1304 			glShaderSource(shaderFrag, 1, &brokenShader,			DE_NULL);
   1305 
   1306 			glCompileShader(shaderVert);
   1307 			glCompileShader(shaderFrag);
   1308 			expectError(GL_NO_ERROR);
   1309 
   1310 			GLuint program = glCreateProgram();
   1311 			glAttachShader(program, shaderVert);
   1312 			glAttachShader(program, shaderFrag);
   1313 			glLinkProgram(program);
   1314 			expectError(GL_NO_ERROR);
   1315 
   1316 			verifyShaderParam	(m_testCtx, *this, shaderVert,	GL_COMPILE_STATUS,	GL_TRUE);
   1317 			verifyShaderParam	(m_testCtx, *this, shaderFrag,	GL_COMPILE_STATUS,	GL_FALSE);
   1318 			verifyProgramParam	(m_testCtx, *this, program,		GL_LINK_STATUS,		GL_FALSE);
   1319 
   1320 			glValidateProgram(program);
   1321 			verifyProgramParam(m_testCtx, *this, program, GL_VALIDATE_STATUS, GL_FALSE);
   1322 
   1323 			glDeleteShader(shaderVert);
   1324 			glDeleteShader(shaderFrag);
   1325 			glDeleteProgram(program);
   1326 			expectError(GL_NO_ERROR);
   1327 		}
   1328 	}
   1329 };
   1330 
   1331 class ProgramAttachedShadersCase : public ApiCase
   1332 {
   1333 public:
   1334 	ProgramAttachedShadersCase (Context& context, const char* name, const char* description)
   1335 		: ApiCase(context, name, description)
   1336 	{
   1337 	}
   1338 
   1339 	void test (void)
   1340 	{
   1341 		using tcu::TestLog;
   1342 
   1343 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1344 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1345 
   1346 		glShaderSource(shaderVert, 1, &commonTestVertSource, DE_NULL);
   1347 		glShaderSource(shaderFrag, 1, &commonTestFragSource, DE_NULL);
   1348 
   1349 		glCompileShader(shaderVert);
   1350 		glCompileShader(shaderFrag);
   1351 		expectError(GL_NO_ERROR);
   1352 
   1353 		// check ATTACHED_SHADERS
   1354 
   1355 		GLuint program = glCreateProgram();
   1356 		verifyProgramParam(m_testCtx, *this, program, GL_ATTACHED_SHADERS, 0);
   1357 		expectError(GL_NO_ERROR);
   1358 
   1359 		glAttachShader(program, shaderVert);
   1360 		verifyProgramParam(m_testCtx, *this, program, GL_ATTACHED_SHADERS, 1);
   1361 		expectError(GL_NO_ERROR);
   1362 
   1363 		glAttachShader(program, shaderFrag);
   1364 		verifyProgramParam(m_testCtx, *this, program, GL_ATTACHED_SHADERS, 2);
   1365 		expectError(GL_NO_ERROR);
   1366 
   1367 		// check GetAttachedShaders
   1368 		{
   1369 			GLuint shaders[2] = {0, 0};
   1370 			GLint count = 0;
   1371 			glGetAttachedShaders(program, DE_LENGTH_OF_ARRAY(shaders), &count, shaders);
   1372 
   1373 			if (count != 2)
   1374 			{
   1375 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected 2; got " << count << TestLog::EndMessage;
   1376 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1377 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong shader count");
   1378 			}
   1379 			// shaders are the attached shaders?
   1380 			if (!((shaders[0] == shaderVert && shaders[1] == shaderFrag) ||
   1381 				  (shaders[0] == shaderFrag && shaders[1] == shaderVert)))
   1382 			{
   1383 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected {" << shaderVert << ", " << shaderFrag << "}; got {" << shaders[0] << ", " << shaders[1] << "}" << TestLog::EndMessage;
   1384 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1385 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong shader count");
   1386 			}
   1387 		}
   1388 
   1389 		// check GetAttachedShaders with too small buffer
   1390 		{
   1391 			GLuint shaders[2] = {0, 0};
   1392 			GLint count = 0;
   1393 
   1394 			glGetAttachedShaders(program, 0, &count, shaders);
   1395 			if (count != 0)
   1396 			{
   1397 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected 0; got " << count << TestLog::EndMessage;
   1398 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1399 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong shader count");
   1400 			}
   1401 
   1402 			count = 0;
   1403 			glGetAttachedShaders(program, 1, &count, shaders);
   1404 			if (count != 1)
   1405 			{
   1406 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected 1; got " << count << TestLog::EndMessage;
   1407 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1408 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong shader count");
   1409 			}
   1410 		}
   1411 
   1412 		glDeleteShader(shaderVert);
   1413 		glDeleteShader(shaderFrag);
   1414 		glDeleteProgram(program);
   1415 		expectError(GL_NO_ERROR);
   1416 	}
   1417 };
   1418 
   1419 class ProgramActiveUniformNameCase : public ApiCase
   1420 {
   1421 public:
   1422 	ProgramActiveUniformNameCase (Context& context, const char* name, const char* description)
   1423 		: ApiCase(context, name, description)
   1424 	{
   1425 	}
   1426 
   1427 	void test (void)
   1428 	{
   1429 		using tcu::TestLog;
   1430 
   1431 		static const char* testVertSource =
   1432 			"#version 300 es\n"
   1433 			"uniform highp float uniformNameWithLength23;\n"
   1434 			"uniform highp vec2 uniformVec2;\n"
   1435 			"uniform highp mat4 uniformMat4;\n"
   1436 			"void main (void)\n"
   1437 			"{\n"
   1438 			"	gl_Position = vec4(0.0) + vec4(uniformNameWithLength23) + vec4(uniformVec2.x) + vec4(uniformMat4[2][3]);\n"
   1439 			"}\n\0";
   1440 		static const char* testFragSource =
   1441 			"#version 300 es\n"
   1442 			"layout(location = 0) out mediump vec4 fragColor;"
   1443 			"void main (void)\n"
   1444 			"{\n"
   1445 			"	fragColor = vec4(0.0);\n"
   1446 			"}\n\0";
   1447 
   1448 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1449 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1450 
   1451 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   1452 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   1453 
   1454 		glCompileShader(shaderVert);
   1455 		glCompileShader(shaderFrag);
   1456 		expectError(GL_NO_ERROR);
   1457 
   1458 		GLuint program = glCreateProgram();
   1459 		glAttachShader(program, shaderVert);
   1460 		glAttachShader(program, shaderFrag);
   1461 		glLinkProgram(program);
   1462 		expectError(GL_NO_ERROR);
   1463 
   1464 		verifyProgramParam(m_testCtx, *this, program, GL_ACTIVE_UNIFORMS, 3);
   1465 		verifyProgramParam(m_testCtx, *this, program, GL_ACTIVE_UNIFORM_MAX_LENGTH, (GLint)std::string("uniformNameWithLength23").length() + 1); // including a null terminator
   1466 		expectError(GL_NO_ERROR);
   1467 
   1468 		const char* uniformNames[] =
   1469 		{
   1470 			"uniformNameWithLength23",
   1471 			"uniformVec2",
   1472 			"uniformMat4"
   1473 		};
   1474 		StateQueryMemoryWriteGuard<GLuint[DE_LENGTH_OF_ARRAY(uniformNames)]> uniformIndices;
   1475 		glGetUniformIndices(program, DE_LENGTH_OF_ARRAY(uniformNames), uniformNames, uniformIndices);
   1476 		uniformIndices.verifyValidity(m_testCtx);
   1477 
   1478 		// check name lengths
   1479 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(uniformNames); ++ndx)
   1480 		{
   1481 			const GLuint uniformIndex = uniformIndices[ndx];
   1482 
   1483 			StateQueryMemoryWriteGuard<GLint> uniformNameLen;
   1484 			glGetActiveUniformsiv(program, 1, &uniformIndex, GL_UNIFORM_NAME_LENGTH, &uniformNameLen);
   1485 
   1486 			uniformNameLen.verifyValidity(m_testCtx);
   1487 
   1488 			const GLint referenceLength = (GLint)std::string(uniformNames[ndx]).length() + 1;
   1489 			if (referenceLength != uniformNameLen) // uniformNameLen is with null terminator
   1490 			{
   1491 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected " << referenceLength << "got " << uniformNameLen << TestLog::EndMessage;
   1492 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1493 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong uniform name length");
   1494 			}
   1495 		}
   1496 
   1497 		// check names
   1498 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(uniformNames); ++ndx)
   1499 		{
   1500 			char buffer[2048] = {'x'};
   1501 
   1502 			const GLuint uniformIndex = uniformIndices[ndx];
   1503 
   1504 			GLint written = 0; // null terminator not included
   1505 			GLint size = 0;
   1506 			GLenum type = 0;
   1507 			glGetActiveUniform(program, uniformIndex, DE_LENGTH_OF_ARRAY(buffer), &written, &size, &type, buffer);
   1508 
   1509 			const GLint referenceLength = (GLint)std::string(uniformNames[ndx]).length();
   1510 			if (referenceLength != written)
   1511 			{
   1512 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected " << referenceLength << "got " << written << TestLog::EndMessage;
   1513 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1514 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong uniform name length");
   1515 			}
   1516 
   1517 			// and with too small buffer
   1518 			written = 0;
   1519 			glGetActiveUniform(program, uniformIndex, 1, &written, &size, &type, buffer);
   1520 
   1521 			if (written != 0)
   1522 			{
   1523 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected 0 got " << written << TestLog::EndMessage;
   1524 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1525 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong uniform name length");
   1526 			}
   1527 		}
   1528 
   1529 
   1530 		glDeleteShader(shaderVert);
   1531 		glDeleteShader(shaderFrag);
   1532 		glDeleteProgram(program);
   1533 		expectError(GL_NO_ERROR);
   1534 	}
   1535 };
   1536 
   1537 class ProgramUniformCase : public ApiCase
   1538 {
   1539 public:
   1540 	ProgramUniformCase (Context& context, const char* name, const char* description)
   1541 		: ApiCase(context, name, description)
   1542 	{
   1543 	}
   1544 
   1545 	void test (void)
   1546 	{
   1547 		const struct UniformType
   1548 		{
   1549 			const char* declaration;
   1550 			const char* postDeclaration;
   1551 			const char* precision;
   1552 			const char* layout;
   1553 			const char* getter;
   1554 			GLenum		type;
   1555 			GLint		size;
   1556 			GLint		isRowMajor;
   1557 		} uniformTypes[] =
   1558 		{
   1559 			{ "float",					"",			"highp",	"",						"uniformValue",							GL_FLOAT,							1, GL_FALSE },
   1560 			{ "float[2]",				"",			"highp",	"",						"uniformValue[1]",						GL_FLOAT,							2, GL_FALSE },
   1561 			{ "vec2",					"",			"highp",	"",						"uniformValue.x",						GL_FLOAT_VEC2,						1, GL_FALSE },
   1562 			{ "vec3",					"",			"highp",	"",						"uniformValue.x",						GL_FLOAT_VEC3,						1, GL_FALSE },
   1563 			{ "vec4",					"",			"highp",	"",						"uniformValue.x",						GL_FLOAT_VEC4,						1, GL_FALSE },
   1564 			{ "int",					"",			"highp",	"",						"float(uniformValue)",					GL_INT,								1, GL_FALSE },
   1565 			{ "ivec2",					"",			"highp",	"",						"float(uniformValue.x)",				GL_INT_VEC2,						1, GL_FALSE },
   1566 			{ "ivec3",					"",			"highp",	"",						"float(uniformValue.x)",				GL_INT_VEC3,						1, GL_FALSE },
   1567 			{ "ivec4",					"",			"highp",	"",						"float(uniformValue.x)",				GL_INT_VEC4,						1, GL_FALSE },
   1568 			{ "uint",					"",			"highp",	"",						"float(uniformValue)",					GL_UNSIGNED_INT,					1, GL_FALSE },
   1569 			{ "uvec2",					"",			"highp",	"",						"float(uniformValue.x)",				GL_UNSIGNED_INT_VEC2,				1, GL_FALSE },
   1570 			{ "uvec3",					"",			"highp",	"",						"float(uniformValue.x)",				GL_UNSIGNED_INT_VEC3,				1, GL_FALSE },
   1571 			{ "uvec4",					"",			"highp",	"",						"float(uniformValue.x)",				GL_UNSIGNED_INT_VEC4,				1, GL_FALSE },
   1572 			{ "bool",					"",			"",			"",						"float(uniformValue)",					GL_BOOL,							1, GL_FALSE },
   1573 			{ "bvec2",					"",			"",			"",						"float(uniformValue.x)",				GL_BOOL_VEC2,						1, GL_FALSE },
   1574 			{ "bvec3",					"",			"",			"",						"float(uniformValue.x)",				GL_BOOL_VEC3,						1, GL_FALSE },
   1575 			{ "bvec4",					"",			"",			"",						"float(uniformValue.x)",				GL_BOOL_VEC4,						1, GL_FALSE },
   1576 			{ "mat2",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT2,						1, GL_FALSE },
   1577 			{ "mat3",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT3,						1, GL_FALSE },
   1578 			{ "mat4",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT4,						1, GL_FALSE },
   1579 			{ "mat2x3",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT2x3,					1, GL_FALSE },
   1580 			{ "mat2x4",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT2x4,					1, GL_FALSE },
   1581 			{ "mat3x2",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT3x2,					1, GL_FALSE },
   1582 			{ "mat3x4",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT3x4,					1, GL_FALSE },
   1583 			{ "mat4x2",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT4x2,					1, GL_FALSE },
   1584 			{ "mat4x3",					"",			"highp",	"",						"float(uniformValue[0][0])",			GL_FLOAT_MAT4x3,					1, GL_FALSE },
   1585 			{ "sampler2D",				"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_2D,						1, GL_FALSE },
   1586 			{ "sampler3D",				"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_3D,						1, GL_FALSE },
   1587 			{ "samplerCube",			"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_CUBE,					1, GL_FALSE },
   1588 			{ "sampler2DShadow",		"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_2D_SHADOW,				1, GL_FALSE },
   1589 			{ "sampler2DArray",			"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_2D_ARRAY,				1, GL_FALSE },
   1590 			{ "sampler2DArrayShadow",	"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_2D_ARRAY_SHADOW,			1, GL_FALSE },
   1591 			{ "samplerCubeShadow",		"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_SAMPLER_CUBE_SHADOW,				1, GL_FALSE },
   1592 			{ "isampler2D",				"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_INT_SAMPLER_2D,					1, GL_FALSE },
   1593 			{ "isampler3D",				"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_INT_SAMPLER_3D,					1, GL_FALSE },
   1594 			{ "isamplerCube",			"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_INT_SAMPLER_CUBE,				1, GL_FALSE },
   1595 			{ "isampler2DArray",		"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_INT_SAMPLER_2D_ARRAY,			1, GL_FALSE },
   1596 			{ "usampler2D",				"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_UNSIGNED_INT_SAMPLER_2D,			1, GL_FALSE },
   1597 			{ "usampler3D",				"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_UNSIGNED_INT_SAMPLER_3D,			1, GL_FALSE },
   1598 			{ "usamplerCube",			"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_UNSIGNED_INT_SAMPLER_CUBE,		1, GL_FALSE },
   1599 			{ "usampler2DArray",		"",			"highp",	"",						"float(textureSize(uniformValue,0).r)",	GL_UNSIGNED_INT_SAMPLER_2D_ARRAY,	1, GL_FALSE },
   1600 		};
   1601 
   1602 		static const char* vertSource =
   1603 			"#version 300 es\n"
   1604 			"void main (void)\n"
   1605 			"{\n"
   1606 			"	gl_Position = vec4(0.0);\n"
   1607 			"}\n\0";
   1608 
   1609 		GLuint shaderVert	= glCreateShader(GL_VERTEX_SHADER);
   1610 		GLuint shaderFrag	= glCreateShader(GL_FRAGMENT_SHADER);
   1611 		GLuint program		= glCreateProgram();
   1612 
   1613 		glAttachShader(program, shaderVert);
   1614 		glAttachShader(program, shaderFrag);
   1615 
   1616 		glShaderSource(shaderVert, 1, &vertSource, DE_NULL);
   1617 		glCompileShader(shaderVert);
   1618 		expectError(GL_NO_ERROR);
   1619 
   1620 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(uniformTypes); ++ndx)
   1621 		{
   1622 			tcu::ScopedLogSection(m_log, uniformTypes[ndx].declaration, std::string("Verify type of ") + uniformTypes[ndx].declaration + " variable" + uniformTypes[ndx].postDeclaration );
   1623 
   1624 			// gen fragment shader
   1625 
   1626 			std::ostringstream frag;
   1627 			frag << "#version 300 es\n";
   1628 			frag << uniformTypes[ndx].layout << "uniform " << uniformTypes[ndx].precision << " " << uniformTypes[ndx].declaration << " uniformValue" << uniformTypes[ndx].postDeclaration << ";\n";
   1629 			frag << "layout(location = 0) out mediump vec4 fragColor;\n";
   1630 			frag << "void main (void)\n";
   1631 			frag << "{\n";
   1632 			frag << "	fragColor = vec4(" << uniformTypes[ndx].getter << ");\n";
   1633 			frag << "}\n";
   1634 
   1635 			{
   1636 				std::string fragmentSource = frag.str();
   1637 				const char* fragmentSourceCStr = fragmentSource.c_str();
   1638 				glShaderSource(shaderFrag, 1, &fragmentSourceCStr, DE_NULL);
   1639 			}
   1640 
   1641 			// compile & link
   1642 
   1643 			glCompileShader(shaderFrag);
   1644 			glLinkProgram(program);
   1645 
   1646 			// test
   1647 			if (verifyProgramParam(m_testCtx, *this, program, GL_LINK_STATUS, GL_TRUE))
   1648 			{
   1649 				const char* uniformNames[] = {"uniformValue"};
   1650 				StateQueryMemoryWriteGuard<GLuint> uniformIndex;
   1651 				glGetUniformIndices(program, 1, uniformNames, &uniformIndex);
   1652 				uniformIndex.verifyValidity(m_testCtx);
   1653 
   1654 				verifyActiveUniformParam(m_testCtx, *this, program, uniformIndex, GL_UNIFORM_TYPE,			uniformTypes[ndx].type);
   1655 				verifyActiveUniformParam(m_testCtx, *this, program, uniformIndex, GL_UNIFORM_SIZE,			uniformTypes[ndx].size);
   1656 				verifyActiveUniformParam(m_testCtx, *this, program, uniformIndex, GL_UNIFORM_IS_ROW_MAJOR,	uniformTypes[ndx].isRowMajor);
   1657 			}
   1658 		}
   1659 
   1660 		glDeleteShader(shaderVert);
   1661 		glDeleteShader(shaderFrag);
   1662 		glDeleteProgram(program);
   1663 		expectError(GL_NO_ERROR);
   1664 	}
   1665 };
   1666 
   1667 class ProgramActiveUniformBlocksCase : public ApiCase
   1668 {
   1669 public:
   1670 	ProgramActiveUniformBlocksCase (Context& context, const char* name, const char* description)
   1671 		: ApiCase(context, name, description)
   1672 	{
   1673 	}
   1674 
   1675 	void test (void)
   1676 	{
   1677 		using tcu::TestLog;
   1678 
   1679 		static const char* testVertSource =
   1680 			"#version 300 es\n"
   1681 			"uniform longlongUniformBlockName {highp vec2 vector2;} longlongUniformInstanceName;\n"
   1682 			"uniform shortUniformBlockName {highp vec2 vector2;highp vec4 vector4;} shortUniformInstanceName;\n"
   1683 			"void main (void)\n"
   1684 			"{\n"
   1685 			"	gl_Position = shortUniformInstanceName.vector4 + vec4(longlongUniformInstanceName.vector2.x) + vec4(shortUniformInstanceName.vector2.x);\n"
   1686 			"}\n\0";
   1687 		static const char* testFragSource =
   1688 			"#version 300 es\n"
   1689 			"uniform longlongUniformBlockName {highp vec2 vector2;} longlongUniformInstanceName;\n"
   1690 			"layout(location = 0) out mediump vec4 fragColor;"
   1691 			"void main (void)\n"
   1692 			"{\n"
   1693 			"	fragColor = vec4(longlongUniformInstanceName.vector2.y);\n"
   1694 			"}\n\0";
   1695 
   1696 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1697 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1698 
   1699 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   1700 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   1701 
   1702 		glCompileShader(shaderVert);
   1703 		glCompileShader(shaderFrag);
   1704 		expectError(GL_NO_ERROR);
   1705 
   1706 		GLuint program = glCreateProgram();
   1707 		glAttachShader(program, shaderVert);
   1708 		glAttachShader(program, shaderFrag);
   1709 		glLinkProgram(program);
   1710 		expectError(GL_NO_ERROR);
   1711 
   1712 		verifyShaderParam	(m_testCtx, *this, shaderVert,	GL_COMPILE_STATUS,	GL_TRUE);
   1713 		verifyShaderParam	(m_testCtx, *this, shaderFrag,	GL_COMPILE_STATUS,	GL_TRUE);
   1714 		verifyProgramParam	(m_testCtx, *this, program,		GL_LINK_STATUS,		GL_TRUE);
   1715 
   1716 		verifyProgramParam	(m_testCtx, *this, program,		GL_ACTIVE_UNIFORM_BLOCKS, 2);
   1717 		verifyProgramParam	(m_testCtx, *this, program,		GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH, (GLint)std::string("longlongUniformBlockName").length() + 1); // including a null terminator
   1718 		expectError(GL_NO_ERROR);
   1719 
   1720 		GLint longlongUniformBlockIndex	= glGetUniformBlockIndex(program, "longlongUniformBlockName");
   1721 		GLint shortUniformBlockIndex	= glGetUniformBlockIndex(program, "shortUniformBlockName");
   1722 
   1723 		const char* uniformNames[] =
   1724 		{
   1725 			"longlongUniformBlockName.vector2",
   1726 			"shortUniformBlockName.vector2",
   1727 			"shortUniformBlockName.vector4"
   1728 		};
   1729 
   1730 		// test UNIFORM_BLOCK_INDEX
   1731 
   1732 		DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(uniformNames) == 3);
   1733 
   1734 		StateQueryMemoryWriteGuard<GLuint[DE_LENGTH_OF_ARRAY(uniformNames)]> uniformIndices;
   1735 		StateQueryMemoryWriteGuard<GLint[DE_LENGTH_OF_ARRAY(uniformNames)]> uniformsBlockIndices;
   1736 
   1737 		glGetUniformIndices(program, DE_LENGTH_OF_ARRAY(uniformNames), uniformNames, uniformIndices);
   1738 		uniformIndices.verifyValidity(m_testCtx);
   1739 		expectError(GL_NO_ERROR);
   1740 
   1741 		glGetActiveUniformsiv(program, DE_LENGTH_OF_ARRAY(uniformNames), uniformIndices, GL_UNIFORM_BLOCK_INDEX, uniformsBlockIndices);
   1742 		uniformsBlockIndices.verifyValidity(m_testCtx);
   1743 		expectError(GL_NO_ERROR);
   1744 
   1745 		if (uniformsBlockIndices[0] != longlongUniformBlockIndex ||
   1746 			uniformsBlockIndices[1] != shortUniformBlockIndex ||
   1747 			uniformsBlockIndices[2] != shortUniformBlockIndex)
   1748 		{
   1749 			m_testCtx.getLog() << TestLog::Message
   1750 				<< "// ERROR: Expected ["	<< longlongUniformBlockIndex	<< ", " << shortUniformBlockIndex	<< ", " << shortUniformBlockIndex	<< "];"
   1751 				<<	"got ["					<< uniformsBlockIndices[0]		<< ", " << uniformsBlockIndices[1]	<< ", " << uniformsBlockIndices[2]	<< "]" << TestLog::EndMessage;
   1752 			if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1753 				m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong uniform block index");
   1754 		}
   1755 
   1756 		// test UNIFORM_BLOCK_NAME_LENGTH
   1757 
   1758 		verifyActiveUniformBlockParam(m_testCtx, *this, program, longlongUniformBlockIndex,	GL_UNIFORM_BLOCK_NAME_LENGTH, (GLint)std::string("longlongUniformBlockName").length() + 1); // including null-terminator
   1759 		verifyActiveUniformBlockParam(m_testCtx, *this, program, shortUniformBlockIndex,	GL_UNIFORM_BLOCK_NAME_LENGTH, (GLint)std::string("shortUniformBlockName").length() + 1); // including null-terminator
   1760 		expectError(GL_NO_ERROR);
   1761 
   1762 		// test UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER & UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER
   1763 
   1764 		verifyActiveUniformBlockParam(m_testCtx, *this, program, longlongUniformBlockIndex,	GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER,	GL_TRUE);
   1765 		verifyActiveUniformBlockParam(m_testCtx, *this, program, longlongUniformBlockIndex,	GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER,	GL_TRUE);
   1766 		verifyActiveUniformBlockParam(m_testCtx, *this, program, shortUniformBlockIndex,	GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER,	GL_TRUE);
   1767 		verifyActiveUniformBlockParam(m_testCtx, *this, program, shortUniformBlockIndex,	GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER,	GL_FALSE);
   1768 		expectError(GL_NO_ERROR);
   1769 
   1770 		// test UNIFORM_BLOCK_ACTIVE_UNIFORMS
   1771 
   1772 		verifyActiveUniformBlockParam(m_testCtx, *this, program, longlongUniformBlockIndex,	GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS,	1);
   1773 		verifyActiveUniformBlockParam(m_testCtx, *this, program, shortUniformBlockIndex,	GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS,	2);
   1774 		expectError(GL_NO_ERROR);
   1775 
   1776 		// test UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES
   1777 
   1778 		{
   1779 			StateQueryMemoryWriteGuard<GLint> longlongUniformBlockUniforms;
   1780 			glGetActiveUniformBlockiv(program, longlongUniformBlockIndex, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, &longlongUniformBlockUniforms);
   1781 			longlongUniformBlockUniforms.verifyValidity(m_testCtx);
   1782 
   1783 			if (longlongUniformBlockUniforms == 2)
   1784 			{
   1785 				StateQueryMemoryWriteGuard<GLint[2]> longlongUniformBlockUniformIndices;
   1786 				glGetActiveUniformBlockiv(program, longlongUniformBlockIndex, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, longlongUniformBlockUniformIndices);
   1787 				longlongUniformBlockUniformIndices.verifyValidity(m_testCtx);
   1788 
   1789 				if ((GLuint(longlongUniformBlockUniformIndices[0]) != uniformIndices[0] || GLuint(longlongUniformBlockUniformIndices[1]) != uniformIndices[1]) &&
   1790 					(GLuint(longlongUniformBlockUniformIndices[1]) != uniformIndices[0] || GLuint(longlongUniformBlockUniformIndices[0]) != uniformIndices[1]))
   1791 				{
   1792 					m_testCtx.getLog() << TestLog::Message
   1793 						<< "// ERROR: Expected {"	<< uniformIndices[0]						<< ", " << uniformIndices[1] << "};"
   1794 						<<	"got {"					<< longlongUniformBlockUniformIndices[0]	<< ", " << longlongUniformBlockUniformIndices[1] << "}" << TestLog::EndMessage;
   1795 
   1796 					if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1797 						m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got wrong uniform indices");
   1798 				}
   1799 
   1800 			}
   1801 		}
   1802 
   1803 		// check block names
   1804 
   1805 		{
   1806 			char buffer[2048] = {'x'};
   1807 			GLint written = 0;
   1808 			glGetActiveUniformBlockName(program, longlongUniformBlockIndex, DE_LENGTH_OF_ARRAY(buffer), &written, buffer);
   1809 			checkIntEquals(m_testCtx, written, (GLint)std::string("longlongUniformBlockName").length());
   1810 
   1811 			written = 0;
   1812 			glGetActiveUniformBlockName(program, shortUniformBlockIndex, DE_LENGTH_OF_ARRAY(buffer), &written, buffer);
   1813 			checkIntEquals(m_testCtx, written, (GLint)std::string("shortUniformBlockName").length());
   1814 
   1815 			// and one with too small buffer
   1816 			written = 0;
   1817 			glGetActiveUniformBlockName(program, longlongUniformBlockIndex, 1, &written, buffer);
   1818 			checkIntEquals(m_testCtx, written, 0);
   1819 		}
   1820 
   1821 		expectError(GL_NO_ERROR);
   1822 		glDeleteShader(shaderVert);
   1823 		glDeleteShader(shaderFrag);
   1824 		glDeleteProgram(program);
   1825 		expectError(GL_NO_ERROR);
   1826 	}
   1827 };
   1828 
   1829 class ProgramBinaryCase : public ApiCase
   1830 {
   1831 public:
   1832 	ProgramBinaryCase (Context& context, const char* name, const char* description)
   1833 		: ApiCase(context, name, description)
   1834 	{
   1835 	}
   1836 
   1837 	void test (void)
   1838 	{
   1839 		using tcu::TestLog;
   1840 
   1841 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1842 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1843 
   1844 		glShaderSource(shaderVert, 1, &commonTestVertSource, DE_NULL);
   1845 		glShaderSource(shaderFrag, 1, &commonTestFragSource, DE_NULL);
   1846 
   1847 		glCompileShader(shaderVert);
   1848 		glCompileShader(shaderFrag);
   1849 		expectError(GL_NO_ERROR);
   1850 
   1851 		GLuint program = glCreateProgram();
   1852 		glAttachShader(program, shaderVert);
   1853 		glAttachShader(program, shaderFrag);
   1854 		glLinkProgram(program);
   1855 		expectError(GL_NO_ERROR);
   1856 
   1857 		// test PROGRAM_BINARY_RETRIEVABLE_HINT
   1858 		verifyProgramParam(m_testCtx, *this, program, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_FALSE);
   1859 
   1860 		glProgramParameteri(program, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
   1861 		expectError(GL_NO_ERROR);
   1862 
   1863 		glLinkProgram(program);
   1864 		expectError(GL_NO_ERROR);
   1865 
   1866 		verifyProgramParam(m_testCtx, *this, program, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
   1867 
   1868 		// test PROGRAM_BINARY_LENGTH does something
   1869 
   1870 		StateQueryMemoryWriteGuard<GLint> programLength;
   1871 		glGetProgramiv(program, GL_PROGRAM_BINARY_LENGTH, &programLength);
   1872 		expectError(GL_NO_ERROR);
   1873 		programLength.verifyValidity(m_testCtx);
   1874 
   1875 		glDeleteShader(shaderVert);
   1876 		glDeleteShader(shaderFrag);
   1877 		glDeleteProgram(program);
   1878 		expectError(GL_NO_ERROR);
   1879 	}
   1880 };
   1881 
   1882 class TransformFeedbackCase : public ApiCase
   1883 {
   1884 public:
   1885 	TransformFeedbackCase (Context& context, const char* name, const char* description)
   1886 		: ApiCase(context, name, description)
   1887 	{
   1888 	}
   1889 
   1890 	void test (void)
   1891 	{
   1892 		using tcu::TestLog;
   1893 
   1894 		static const char* transformFeedbackTestVertSource =
   1895 			"#version 300 es\n"
   1896 			"out highp vec4 tfOutput2withLongName;\n"
   1897 			"void main (void)\n"
   1898 			"{\n"
   1899 			"	gl_Position = vec4(0.0);\n"
   1900 			"	tfOutput2withLongName = vec4(0.0);\n"
   1901 			"}\n";
   1902 		static const char* transformFeedbackTestFragSource =
   1903 			"#version 300 es\n"
   1904 			"layout(location = 0) out highp vec4 fragColor;\n"
   1905 			"void main (void)\n"
   1906 			"{\n"
   1907 			"	fragColor = vec4(0.0);\n"
   1908 			"}\n";
   1909 
   1910 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   1911 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   1912 		GLuint shaderProg = glCreateProgram();
   1913 
   1914 		verifyProgramParam(m_testCtx, *this, shaderProg, GL_TRANSFORM_FEEDBACK_BUFFER_MODE, GL_INTERLEAVED_ATTRIBS);
   1915 
   1916 		glShaderSource(shaderVert, 1, &transformFeedbackTestVertSource, DE_NULL);
   1917 		glShaderSource(shaderFrag, 1, &transformFeedbackTestFragSource, DE_NULL);
   1918 
   1919 		glCompileShader(shaderVert);
   1920 		glCompileShader(shaderFrag);
   1921 
   1922 		verifyShaderParam(m_testCtx, *this, shaderVert, GL_COMPILE_STATUS, GL_TRUE);
   1923 		verifyShaderParam(m_testCtx, *this, shaderFrag, GL_COMPILE_STATUS, GL_TRUE);
   1924 
   1925 		glAttachShader(shaderProg, shaderVert);
   1926 		glAttachShader(shaderProg, shaderFrag);
   1927 
   1928 		// check TRANSFORM_FEEDBACK_BUFFER_MODE
   1929 
   1930 		const char* transform_feedback_outputs[] = {"gl_Position", "tfOutput2withLongName"};
   1931 		const char* longest_output = transform_feedback_outputs[1];
   1932 		const GLenum bufferModes[] = {GL_SEPARATE_ATTRIBS, GL_INTERLEAVED_ATTRIBS};
   1933 
   1934 		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(bufferModes); ++ndx)
   1935 		{
   1936 			glTransformFeedbackVaryings(shaderProg, DE_LENGTH_OF_ARRAY(transform_feedback_outputs), transform_feedback_outputs, bufferModes[ndx]);
   1937 			glLinkProgram(shaderProg);
   1938 			expectError(GL_NO_ERROR);
   1939 
   1940 			verifyProgramParam(m_testCtx, *this, shaderProg, GL_LINK_STATUS, GL_TRUE);
   1941 			verifyProgramParam(m_testCtx, *this, shaderProg, GL_TRANSFORM_FEEDBACK_BUFFER_MODE, bufferModes[ndx]);
   1942 		}
   1943 
   1944 		// TRANSFORM_FEEDBACK_VARYINGS
   1945 		verifyProgramParam(m_testCtx, *this, shaderProg, GL_TRANSFORM_FEEDBACK_VARYINGS, 2);
   1946 
   1947 		// TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH
   1948 		{
   1949 			StateQueryMemoryWriteGuard<GLint> maxOutputLen;
   1950 			glGetProgramiv(shaderProg, GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH, &maxOutputLen);
   1951 
   1952 			maxOutputLen.verifyValidity(m_testCtx);
   1953 
   1954 			const GLint referenceLength = (GLint)std::string(longest_output).length() + 1;
   1955 			checkIntEquals(m_testCtx, maxOutputLen, referenceLength);
   1956 		}
   1957 
   1958 		// check varyings
   1959 		{
   1960 			StateQueryMemoryWriteGuard<GLint> varyings;
   1961 			glGetProgramiv(shaderProg, GL_TRANSFORM_FEEDBACK_VARYINGS, &varyings);
   1962 
   1963 			if (!varyings.isUndefined())
   1964 				for (int index = 0; index < varyings; ++index)
   1965 				{
   1966 					char buffer[2048] = {'x'};
   1967 
   1968 					GLint written = 0;
   1969 					GLint size = 0;
   1970 					GLenum type = 0;
   1971 					glGetTransformFeedbackVarying(shaderProg, index, DE_LENGTH_OF_ARRAY(buffer), &written, &size, &type, buffer);
   1972 
   1973 					if (written < DE_LENGTH_OF_ARRAY(buffer) && buffer[written] != '\0')
   1974 					{
   1975 						m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected null terminator" << TestLog::EndMessage;
   1976 						if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1977 							m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid string terminator");
   1978 					}
   1979 
   1980 					// check with too small buffer
   1981 					written = 0;
   1982 					glGetTransformFeedbackVarying(shaderProg, index, 1, &written, &size, &type, buffer);
   1983 					if (written != 0)
   1984 					{
   1985 						m_testCtx.getLog() << TestLog::Message << "// ERROR: Expected 0; got " << written << TestLog::EndMessage;
   1986 						if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   1987 							m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid write length");
   1988 					}
   1989 				}
   1990 		}
   1991 
   1992 
   1993 		glDeleteShader(shaderVert);
   1994 		glDeleteShader(shaderFrag);
   1995 		glDeleteProgram(shaderProg);
   1996 		expectError(GL_NO_ERROR);
   1997 	}
   1998 };
   1999 
   2000 class ActiveAttributesCase : public ApiCase
   2001 {
   2002 public:
   2003 	ActiveAttributesCase (Context& context, const char* name, const char* description)
   2004 		: ApiCase(context, name, description)
   2005 	{
   2006 	}
   2007 
   2008 	void test (void)
   2009 	{
   2010 		using tcu::TestLog;
   2011 
   2012 		static const char* testVertSource =
   2013 			"#version 300 es\n"
   2014 			"in highp vec2 longInputAttributeName;\n"
   2015 			"in highp vec2 shortName;\n"
   2016 			"void main (void)\n"
   2017 			"{\n"
   2018 			"	gl_Position = longInputAttributeName.yxxy + shortName.xyxy;\n"
   2019 			"}\n\0";
   2020 		static const char* testFragSource =
   2021 			"#version 300 es\n"
   2022 			"layout(location = 0) out mediump vec4 fragColor;"
   2023 			"void main (void)\n"
   2024 			"{\n"
   2025 			"	fragColor = vec4(0.0);\n"
   2026 			"}\n\0";
   2027 
   2028 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   2029 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   2030 
   2031 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   2032 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   2033 
   2034 		glCompileShader(shaderVert);
   2035 		glCompileShader(shaderFrag);
   2036 		expectError(GL_NO_ERROR);
   2037 
   2038 		GLuint program = glCreateProgram();
   2039 		glAttachShader(program, shaderVert);
   2040 		glAttachShader(program, shaderFrag);
   2041 		glLinkProgram(program);
   2042 		expectError(GL_NO_ERROR);
   2043 
   2044 		verifyProgramParam(m_testCtx, *this, program, GL_ACTIVE_ATTRIBUTES, 2);
   2045 		verifyProgramParam(m_testCtx, *this, program, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, (GLint)std::string("longInputAttributeName").length() + 1); // does include null-terminator
   2046 
   2047 		// check names
   2048 		for (int attributeNdx = 0; attributeNdx < 2; ++attributeNdx)
   2049 		{
   2050 			char buffer[2048] = {'x'};
   2051 
   2052 			GLint written = 0;
   2053 			GLint size = 0;
   2054 			GLenum type = 0;
   2055 			glGetActiveAttrib(program, attributeNdx, DE_LENGTH_OF_ARRAY(buffer), &written, &size, &type, buffer);
   2056 			expectError(GL_NO_ERROR);
   2057 
   2058 			if (deStringBeginsWith(buffer, "longInputAttributeName"))
   2059 			{
   2060 				checkIntEquals(m_testCtx, written, (GLint)std::string("longInputAttributeName").length()); // does NOT include null-terminator
   2061 			}
   2062 			else if (deStringBeginsWith(buffer, "shortName"))
   2063 			{
   2064 				checkIntEquals(m_testCtx, written, (GLint)std::string("shortName").length()); // does NOT include null-terminator
   2065 			}
   2066 			else
   2067 			{
   2068 				m_testCtx.getLog() << TestLog::Message << "// ERROR: Got unexpected attribute name." << TestLog::EndMessage;
   2069 				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
   2070 					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got unexpected name");
   2071 			}
   2072 		}
   2073 
   2074 		// and with too short buffer
   2075 		{
   2076 			char buffer[2048] = {'x'};
   2077 
   2078 			GLint written = 0;
   2079 			GLint size = 0;
   2080 			GLenum type = 0;
   2081 
   2082 			glGetActiveAttrib(program, 0, 1, &written, &size, &type, buffer);
   2083 			expectError(GL_NO_ERROR);
   2084 			checkIntEquals(m_testCtx, written, 0);
   2085 		}
   2086 
   2087 		glDeleteShader(shaderVert);
   2088 		glDeleteShader(shaderFrag);
   2089 		glDeleteProgram(program);
   2090 		expectError(GL_NO_ERROR);
   2091 	}
   2092 };
   2093 
   2094 struct PointerData
   2095 {
   2096 	GLint		size;
   2097 	GLenum		type;
   2098 	GLint		stride;
   2099 	GLboolean	normalized;
   2100 	const void*	pointer;
   2101 };
   2102 
   2103 class VertexAttributeSizeCase : public ApiCase
   2104 {
   2105 public:
   2106 	VertexAttributeSizeCase (Context& context, const char* name, const char* description)
   2107 		: ApiCase(context, name, description)
   2108 	{
   2109 	}
   2110 
   2111 	void test (void)
   2112 	{
   2113 		GLfloat vertexData[4] = {0.0f}; // never accessed
   2114 
   2115 		const PointerData pointers[] =
   2116 		{
   2117 			// size test
   2118 			{ 4, GL_FLOAT,		0,	GL_FALSE, vertexData },
   2119 			{ 3, GL_FLOAT,		0,	GL_FALSE, vertexData },
   2120 			{ 2, GL_FLOAT,		0,	GL_FALSE, vertexData },
   2121 			{ 1, GL_FLOAT,		0,	GL_FALSE, vertexData },
   2122 			{ 4, GL_INT,		0,	GL_FALSE, vertexData },
   2123 			{ 3, GL_INT,		0,	GL_FALSE, vertexData },
   2124 			{ 2, GL_INT,		0,	GL_FALSE, vertexData },
   2125 			{ 1, GL_INT,		0,	GL_FALSE, vertexData },
   2126 		};
   2127 
   2128 		// Test with default VAO
   2129 		{
   2130 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2131 
   2132 			for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2133 			{
   2134 				glVertexAttribPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].normalized, pointers[ndx].stride, pointers[ndx].pointer);
   2135 				expectError(GL_NO_ERROR);
   2136 
   2137 				verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_SIZE, pointers[ndx].size);
   2138 			}
   2139 		}
   2140 
   2141 		// Test with multiple VAOs
   2142 		{
   2143 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2144 
   2145 			GLuint buf		= 0;
   2146 			GLuint vaos[2]	= {0};
   2147 
   2148 			glGenVertexArrays(2, vaos);
   2149 			glGenBuffers(1, &buf);
   2150 			glBindBuffer(GL_ARRAY_BUFFER, buf);
   2151 			expectError(GL_NO_ERROR);
   2152 
   2153 			// initial
   2154 			glBindVertexArray(vaos[0]);
   2155 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_SIZE, 4);
   2156 			expectError(GL_NO_ERROR);
   2157 
   2158 			// set vao 0 to some value
   2159 			glVertexAttribPointer(0, pointers[0].size, pointers[0].type, pointers[0].normalized, pointers[0].stride, DE_NULL);
   2160 			expectError(GL_NO_ERROR);
   2161 
   2162 			// set vao 1 to some other value
   2163 			glBindVertexArray(vaos[1]);
   2164 			glVertexAttribPointer(0, pointers[1].size, pointers[1].type, pointers[1].normalized, pointers[1].stride, DE_NULL);
   2165 			expectError(GL_NO_ERROR);
   2166 
   2167 			// verify vao 1 state
   2168 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_SIZE, pointers[1].size);
   2169 			expectError(GL_NO_ERROR);
   2170 
   2171 			// verify vao 0 state
   2172 			glBindVertexArray(vaos[0]);
   2173 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_SIZE, pointers[0].size);
   2174 			expectError(GL_NO_ERROR);
   2175 
   2176 			glDeleteVertexArrays(2, vaos);
   2177 			glDeleteBuffers(1, &buf);
   2178 			expectError(GL_NO_ERROR);
   2179 		}
   2180 	}
   2181 };
   2182 
   2183 class VertexAttributeTypeCase : public ApiCase
   2184 {
   2185 public:
   2186 	VertexAttributeTypeCase (Context& context, const char* name, const char* description)
   2187 		: ApiCase(context, name, description)
   2188 	{
   2189 	}
   2190 
   2191 	void test (void)
   2192 	{
   2193 		// Test with default VAO
   2194 		{
   2195 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2196 
   2197 			const GLfloat vertexData[4] = {0.0f}; // never accessed
   2198 
   2199 			// test VertexAttribPointer
   2200 			{
   2201 				const PointerData pointers[] =
   2202 				{
   2203 					{ 1, GL_BYTE,								0,	GL_FALSE, vertexData	},
   2204 					{ 1, GL_SHORT,								0,	GL_FALSE, vertexData	},
   2205 					{ 1, GL_INT,								0,	GL_FALSE, vertexData	},
   2206 					{ 1, GL_FIXED,								0,	GL_FALSE, vertexData	},
   2207 					{ 1, GL_FLOAT,								0,	GL_FALSE, vertexData	},
   2208 					{ 1, GL_HALF_FLOAT,							0,	GL_FALSE, vertexData	},
   2209 					{ 1, GL_UNSIGNED_BYTE,						0,	GL_FALSE, vertexData	},
   2210 					{ 1, GL_UNSIGNED_SHORT,						0,	GL_FALSE, vertexData	},
   2211 					{ 1, GL_UNSIGNED_INT,						0,	GL_FALSE, vertexData	},
   2212 					{ 4, GL_INT_2_10_10_10_REV,					0,	GL_FALSE, vertexData	},
   2213 					{ 4, GL_UNSIGNED_INT_2_10_10_10_REV,		0,	GL_FALSE, vertexData	},
   2214 				};
   2215 
   2216 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2217 				{
   2218 					glVertexAttribPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].normalized, pointers[ndx].stride, pointers[ndx].pointer);
   2219 					expectError(GL_NO_ERROR);
   2220 
   2221 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_TYPE, pointers[ndx].type);
   2222 				}
   2223 			}
   2224 
   2225 			// test glVertexAttribIPointer
   2226 			{
   2227 				const PointerData pointers[] =
   2228 				{
   2229 					{ 1, GL_BYTE,								0,	GL_FALSE, vertexData	},
   2230 					{ 1, GL_SHORT,								0,	GL_FALSE, vertexData	},
   2231 					{ 1, GL_INT,								0,	GL_FALSE, vertexData	},
   2232 					{ 1, GL_UNSIGNED_BYTE,						0,	GL_FALSE, vertexData	},
   2233 					{ 1, GL_UNSIGNED_SHORT,						0,	GL_FALSE, vertexData	},
   2234 					{ 1, GL_UNSIGNED_INT,						0,	GL_FALSE, vertexData	},
   2235 				};
   2236 
   2237 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2238 				{
   2239 					glVertexAttribIPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].stride, pointers[ndx].pointer);
   2240 					expectError(GL_NO_ERROR);
   2241 
   2242 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_TYPE, pointers[ndx].type);
   2243 				}
   2244 			}
   2245 		}
   2246 
   2247 		// Test with multiple VAOs
   2248 		{
   2249 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2250 
   2251 			GLuint buf		= 0;
   2252 			GLuint vaos[2]	= {0};
   2253 
   2254 			glGenVertexArrays(2, vaos);
   2255 			glGenBuffers(1, &buf);
   2256 			glBindBuffer(GL_ARRAY_BUFFER, buf);
   2257 			expectError(GL_NO_ERROR);
   2258 
   2259 			// initial
   2260 			glBindVertexArray(vaos[0]);
   2261 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_TYPE, GL_FLOAT);
   2262 			expectError(GL_NO_ERROR);
   2263 
   2264 			// set vao 0 to some value
   2265 			glVertexAttribPointer(0, 1, GL_FLOAT, GL_FALSE, 0, DE_NULL);
   2266 			expectError(GL_NO_ERROR);
   2267 
   2268 			// set vao 1 to some other value
   2269 			glBindVertexArray(vaos[1]);
   2270 			glVertexAttribPointer(0, 1, GL_SHORT, GL_FALSE, 0, DE_NULL);
   2271 			expectError(GL_NO_ERROR);
   2272 
   2273 			// verify vao 1 state
   2274 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_TYPE, GL_SHORT);
   2275 			expectError(GL_NO_ERROR);
   2276 
   2277 			// verify vao 0 state
   2278 			glBindVertexArray(vaos[0]);
   2279 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_TYPE, GL_FLOAT);
   2280 			expectError(GL_NO_ERROR);
   2281 
   2282 			glDeleteVertexArrays(2, vaos);
   2283 			glDeleteBuffers(1, &buf);
   2284 			expectError(GL_NO_ERROR);
   2285 		}
   2286 	}
   2287 };
   2288 
   2289 class VertexAttributeStrideCase : public ApiCase
   2290 {
   2291 public:
   2292 	VertexAttributeStrideCase (Context& context, const char* name, const char* description)
   2293 		: ApiCase(context, name, description)
   2294 	{
   2295 	}
   2296 
   2297 	void test (void)
   2298 	{
   2299 		// Test with default VAO
   2300 		{
   2301 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2302 
   2303 			const GLfloat vertexData[4] = {0.0f}; // never accessed
   2304 
   2305 			struct StridePointerData
   2306 			{
   2307 				GLint		size;
   2308 				GLenum		type;
   2309 				GLint		stride;
   2310 				const void*	pointer;
   2311 			};
   2312 
   2313 			// test VertexAttribPointer
   2314 			{
   2315 				const StridePointerData pointers[] =
   2316 				{
   2317 					{ 1, GL_FLOAT,			0,	vertexData },
   2318 					{ 1, GL_FLOAT,			1,	vertexData },
   2319 					{ 1, GL_FLOAT,			4,	vertexData },
   2320 					{ 1, GL_HALF_FLOAT,		0,	vertexData },
   2321 					{ 1, GL_HALF_FLOAT,		1,	vertexData },
   2322 					{ 1, GL_HALF_FLOAT,		4,	vertexData },
   2323 					{ 1, GL_FIXED,			0,	vertexData },
   2324 					{ 1, GL_FIXED,			1,	vertexData },
   2325 					{ 1, GL_FIXED,			4,	vertexData },
   2326 				};
   2327 
   2328 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2329 				{
   2330 					glVertexAttribPointer(0, pointers[ndx].size, pointers[ndx].type, GL_FALSE, pointers[ndx].stride, pointers[ndx].pointer);
   2331 					expectError(GL_NO_ERROR);
   2332 
   2333 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_STRIDE, pointers[ndx].stride);
   2334 				}
   2335 			}
   2336 
   2337 			// test glVertexAttribIPointer
   2338 			{
   2339 				const StridePointerData pointers[] =
   2340 				{
   2341 					{ 1, GL_INT,				0,	vertexData },
   2342 					{ 1, GL_INT,				1,	vertexData },
   2343 					{ 1, GL_INT,				4,	vertexData },
   2344 					{ 4, GL_UNSIGNED_BYTE,		0,	vertexData },
   2345 					{ 4, GL_UNSIGNED_BYTE,		1,	vertexData },
   2346 					{ 4, GL_UNSIGNED_BYTE,		4,	vertexData },
   2347 					{ 2, GL_SHORT,				0,	vertexData },
   2348 					{ 2, GL_SHORT,				1,	vertexData },
   2349 					{ 2, GL_SHORT,				4,	vertexData },
   2350 				};
   2351 
   2352 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2353 				{
   2354 					glVertexAttribIPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].stride, pointers[ndx].pointer);
   2355 					expectError(GL_NO_ERROR);
   2356 
   2357 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_STRIDE, pointers[ndx].stride);
   2358 				}
   2359 			}
   2360 		}
   2361 
   2362 		// Test with multiple VAOs
   2363 		{
   2364 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2365 
   2366 			GLuint buf		= 0;
   2367 			GLuint vaos[2]	= {0};
   2368 
   2369 			glGenVertexArrays(2, vaos);
   2370 			glGenBuffers(1, &buf);
   2371 			glBindBuffer(GL_ARRAY_BUFFER, buf);
   2372 			expectError(GL_NO_ERROR);
   2373 
   2374 			// initial
   2375 			glBindVertexArray(vaos[0]);
   2376 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_STRIDE, 0);
   2377 			expectError(GL_NO_ERROR);
   2378 
   2379 			// set vao 0 to some value
   2380 			glVertexAttribPointer(0, 1, GL_FLOAT, GL_FALSE, 4, DE_NULL);
   2381 			expectError(GL_NO_ERROR);
   2382 
   2383 			// set vao 1 to some other value
   2384 			glBindVertexArray(vaos[1]);
   2385 			glVertexAttribPointer(0, 1, GL_SHORT, GL_FALSE, 8, DE_NULL);
   2386 			expectError(GL_NO_ERROR);
   2387 
   2388 			// verify vao 1 state
   2389 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_STRIDE, 8);
   2390 			expectError(GL_NO_ERROR);
   2391 
   2392 			// verify vao 0 state
   2393 			glBindVertexArray(vaos[0]);
   2394 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_STRIDE, 4);
   2395 			expectError(GL_NO_ERROR);
   2396 
   2397 			glDeleteVertexArrays(2, vaos);
   2398 			glDeleteBuffers(1, &buf);
   2399 			expectError(GL_NO_ERROR);
   2400 		}
   2401 	}
   2402 };
   2403 
   2404 class VertexAttributeNormalizedCase : public ApiCase
   2405 {
   2406 public:
   2407 	VertexAttributeNormalizedCase (Context& context, const char* name, const char* description)
   2408 		: ApiCase(context, name, description)
   2409 	{
   2410 	}
   2411 
   2412 	void test (void)
   2413 	{
   2414 		// Test with default VAO
   2415 		{
   2416 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2417 
   2418 			const GLfloat vertexData[4] = {0.0f}; // never accessed
   2419 
   2420 			// test VertexAttribPointer
   2421 			{
   2422 				const PointerData pointers[] =
   2423 				{
   2424 					{ 1, GL_BYTE,								0,	GL_FALSE,	vertexData	},
   2425 					{ 1, GL_SHORT,								0,	GL_FALSE,	vertexData	},
   2426 					{ 1, GL_INT,								0,	GL_FALSE,	vertexData	},
   2427 					{ 1, GL_UNSIGNED_BYTE,						0,	GL_FALSE,	vertexData	},
   2428 					{ 1, GL_UNSIGNED_SHORT,						0,	GL_FALSE,	vertexData	},
   2429 					{ 1, GL_UNSIGNED_INT,						0,	GL_FALSE,	vertexData	},
   2430 					{ 4, GL_INT_2_10_10_10_REV,					0,	GL_FALSE,	vertexData	},
   2431 					{ 4, GL_UNSIGNED_INT_2_10_10_10_REV,		0,	GL_FALSE,	vertexData	},
   2432 					{ 1, GL_BYTE,								0,	GL_TRUE,	vertexData	},
   2433 					{ 1, GL_SHORT,								0,	GL_TRUE,	vertexData	},
   2434 					{ 1, GL_INT,								0,	GL_TRUE,	vertexData	},
   2435 					{ 1, GL_UNSIGNED_BYTE,						0,	GL_TRUE,	vertexData	},
   2436 					{ 1, GL_UNSIGNED_SHORT,						0,	GL_TRUE,	vertexData	},
   2437 					{ 1, GL_UNSIGNED_INT,						0,	GL_TRUE,	vertexData	},
   2438 					{ 4, GL_INT_2_10_10_10_REV,					0,	GL_TRUE,	vertexData	},
   2439 					{ 4, GL_UNSIGNED_INT_2_10_10_10_REV,		0,	GL_TRUE,	vertexData	},
   2440 				};
   2441 
   2442 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2443 				{
   2444 					glVertexAttribPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].normalized, pointers[ndx].stride, pointers[ndx].pointer);
   2445 					expectError(GL_NO_ERROR);
   2446 
   2447 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, pointers[ndx].normalized);
   2448 				}
   2449 			}
   2450 
   2451 			// test glVertexAttribIPointer
   2452 			{
   2453 				const PointerData pointers[] =
   2454 				{
   2455 					{ 1, GL_BYTE,				0,	GL_FALSE, vertexData	},
   2456 					{ 1, GL_SHORT,				0,	GL_FALSE, vertexData	},
   2457 					{ 1, GL_INT,				0,	GL_FALSE, vertexData	},
   2458 					{ 1, GL_UNSIGNED_BYTE,		0,	GL_FALSE, vertexData	},
   2459 					{ 1, GL_UNSIGNED_SHORT,		0,	GL_FALSE, vertexData	},
   2460 					{ 1, GL_UNSIGNED_INT,		0,	GL_FALSE, vertexData	},
   2461 				};
   2462 
   2463 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2464 				{
   2465 					glVertexAttribIPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].stride, pointers[ndx].pointer);
   2466 					expectError(GL_NO_ERROR);
   2467 
   2468 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, GL_FALSE);
   2469 				}
   2470 			}
   2471 		}
   2472 
   2473 		// Test with multiple VAOs
   2474 		{
   2475 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2476 
   2477 			GLuint buf		= 0;
   2478 			GLuint vaos[2]	= {0};
   2479 
   2480 			glGenVertexArrays(2, vaos);
   2481 			glGenBuffers(1, &buf);
   2482 			glBindBuffer(GL_ARRAY_BUFFER, buf);
   2483 			expectError(GL_NO_ERROR);
   2484 
   2485 			// initial
   2486 			glBindVertexArray(vaos[0]);
   2487 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, GL_FALSE);
   2488 			expectError(GL_NO_ERROR);
   2489 
   2490 			// set vao 0 to some value
   2491 			glVertexAttribPointer(0, 1, GL_INT, GL_TRUE, 0, DE_NULL);
   2492 			expectError(GL_NO_ERROR);
   2493 
   2494 			// set vao 1 to some other value
   2495 			glBindVertexArray(vaos[1]);
   2496 			glVertexAttribPointer(0, 1, GL_INT, GL_FALSE, 0, DE_NULL);
   2497 			expectError(GL_NO_ERROR);
   2498 
   2499 			// verify vao 1 state
   2500 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, GL_FALSE);
   2501 			expectError(GL_NO_ERROR);
   2502 
   2503 			// verify vao 0 state
   2504 			glBindVertexArray(vaos[0]);
   2505 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, GL_TRUE);
   2506 			expectError(GL_NO_ERROR);
   2507 
   2508 			glDeleteVertexArrays(2, vaos);
   2509 			glDeleteBuffers(1, &buf);
   2510 			expectError(GL_NO_ERROR);
   2511 		}
   2512 	}
   2513 };
   2514 
   2515 class VertexAttributeIntegerCase : public ApiCase
   2516 {
   2517 public:
   2518 	VertexAttributeIntegerCase (Context& context, const char* name, const char* description)
   2519 		: ApiCase(context, name, description)
   2520 	{
   2521 	}
   2522 
   2523 	void test (void)
   2524 	{
   2525 		// Test with default VAO
   2526 		{
   2527 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2528 
   2529 			const GLfloat vertexData[4] = {0.0f}; // never accessed
   2530 
   2531 			// test VertexAttribPointer
   2532 			{
   2533 				const PointerData pointers[] =
   2534 				{
   2535 					{ 1, GL_BYTE,								0,	GL_FALSE, vertexData	},
   2536 					{ 1, GL_SHORT,								0,	GL_FALSE, vertexData	},
   2537 					{ 1, GL_INT,								0,	GL_FALSE, vertexData	},
   2538 					{ 1, GL_FIXED,								0,	GL_FALSE, vertexData	},
   2539 					{ 1, GL_FLOAT,								0,	GL_FALSE, vertexData	},
   2540 					{ 1, GL_HALF_FLOAT,							0,	GL_FALSE, vertexData	},
   2541 					{ 1, GL_UNSIGNED_BYTE,						0,	GL_FALSE, vertexData	},
   2542 					{ 1, GL_UNSIGNED_SHORT,						0,	GL_FALSE, vertexData	},
   2543 					{ 1, GL_UNSIGNED_INT,						0,	GL_FALSE, vertexData	},
   2544 					{ 4, GL_INT_2_10_10_10_REV,					0,	GL_FALSE, vertexData	},
   2545 					{ 4, GL_UNSIGNED_INT_2_10_10_10_REV,		0,	GL_FALSE, vertexData	},
   2546 				};
   2547 
   2548 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2549 				{
   2550 					glVertexAttribPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].normalized, pointers[ndx].stride, pointers[ndx].pointer);
   2551 					expectError(GL_NO_ERROR);
   2552 
   2553 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_FALSE);
   2554 				}
   2555 			}
   2556 
   2557 			// test glVertexAttribIPointer
   2558 			{
   2559 				const PointerData pointers[] =
   2560 				{
   2561 					{ 1, GL_BYTE,								0,	GL_FALSE, vertexData	},
   2562 					{ 1, GL_SHORT,								0,	GL_FALSE, vertexData	},
   2563 					{ 1, GL_INT,								0,	GL_FALSE, vertexData	},
   2564 					{ 1, GL_UNSIGNED_BYTE,						0,	GL_FALSE, vertexData	},
   2565 					{ 1, GL_UNSIGNED_SHORT,						0,	GL_FALSE, vertexData	},
   2566 					{ 1, GL_UNSIGNED_INT,						0,	GL_FALSE, vertexData	},
   2567 				};
   2568 
   2569 				for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2570 				{
   2571 					glVertexAttribIPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].stride, pointers[ndx].pointer);
   2572 					expectError(GL_NO_ERROR);
   2573 
   2574 					verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_TRUE);
   2575 				}
   2576 			}
   2577 		}
   2578 
   2579 		// Test with multiple VAOs
   2580 		{
   2581 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2582 
   2583 			GLuint buf		= 0;
   2584 			GLuint vaos[2]	= {0};
   2585 
   2586 			glGenVertexArrays(2, vaos);
   2587 			glGenBuffers(1, &buf);
   2588 			glBindBuffer(GL_ARRAY_BUFFER, buf);
   2589 			expectError(GL_NO_ERROR);
   2590 
   2591 			// initial
   2592 			glBindVertexArray(vaos[0]);
   2593 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_FALSE);
   2594 			expectError(GL_NO_ERROR);
   2595 
   2596 			// set vao 0 to some value
   2597 			glVertexAttribIPointer(0, 1, GL_INT, 0, DE_NULL);
   2598 			expectError(GL_NO_ERROR);
   2599 
   2600 			// set vao 1 to some other value
   2601 			glBindVertexArray(vaos[1]);
   2602 			glVertexAttribPointer(0, 1, GL_FLOAT, GL_FALSE, 0, DE_NULL);
   2603 			expectError(GL_NO_ERROR);
   2604 
   2605 			// verify vao 1 state
   2606 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_FALSE);
   2607 			expectError(GL_NO_ERROR);
   2608 
   2609 			// verify vao 0 state
   2610 			glBindVertexArray(vaos[0]);
   2611 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_INTEGER, GL_TRUE);
   2612 			expectError(GL_NO_ERROR);
   2613 
   2614 			glDeleteVertexArrays(2, vaos);
   2615 			glDeleteBuffers(1, &buf);
   2616 			expectError(GL_NO_ERROR);
   2617 		}
   2618 	}
   2619 };
   2620 
   2621 class VertexAttributeEnabledCase : public ApiCase
   2622 {
   2623 public:
   2624 	VertexAttributeEnabledCase (Context& context, const char* name, const char* description)
   2625 		: ApiCase(context, name, description)
   2626 	{
   2627 	}
   2628 
   2629 	void test (void)
   2630 	{
   2631 		// VERTEX_ATTRIB_ARRAY_ENABLED
   2632 
   2633 		// Test with default VAO
   2634 		{
   2635 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2636 
   2637 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_FALSE);
   2638 			glEnableVertexAttribArray(0);
   2639 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_TRUE);
   2640 			glDisableVertexAttribArray(0);
   2641 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_FALSE);
   2642 		}
   2643 
   2644 		// Test with multiple VAOs
   2645 		{
   2646 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2647 
   2648 			GLuint vaos[2] = {0};
   2649 
   2650 			glGenVertexArrays(2, vaos);
   2651 			expectError(GL_NO_ERROR);
   2652 
   2653 			// set vao 0 to some value
   2654 			glBindVertexArray(vaos[0]);
   2655 			glEnableVertexAttribArray(0);
   2656 			expectError(GL_NO_ERROR);
   2657 
   2658 			// set vao 1 to some other value
   2659 			glBindVertexArray(vaos[1]);
   2660 			glDisableVertexAttribArray(0);
   2661 			expectError(GL_NO_ERROR);
   2662 
   2663 			// verify vao 1 state
   2664 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_FALSE);
   2665 			expectError(GL_NO_ERROR);
   2666 
   2667 			// verify vao 0 state
   2668 			glBindVertexArray(vaos[0]);
   2669 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_ENABLED, GL_TRUE);
   2670 			expectError(GL_NO_ERROR);
   2671 
   2672 			glDeleteVertexArrays(2, vaos);
   2673 			expectError(GL_NO_ERROR);
   2674 		}
   2675 	}
   2676 };
   2677 
   2678 class VertexAttributeDivisorCase : public ApiCase
   2679 {
   2680 public:
   2681 	VertexAttributeDivisorCase (Context& context, const char* name, const char* description)
   2682 		: ApiCase(context, name, description)
   2683 	{
   2684 	}
   2685 
   2686 	void test (void)
   2687 	{
   2688 		// Test with default VAO
   2689 		{
   2690 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2691 
   2692 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_DIVISOR,	0);
   2693 			glVertexAttribDivisor(0, 1);
   2694 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_DIVISOR,	1);
   2695 			glVertexAttribDivisor(0, 5);
   2696 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_DIVISOR,	5);
   2697 		}
   2698 
   2699 		// Test with multiple VAOs
   2700 		{
   2701 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2702 
   2703 			GLuint vaos[2] = {0};
   2704 
   2705 			glGenVertexArrays(2, vaos);
   2706 			expectError(GL_NO_ERROR);
   2707 
   2708 			// set vao 0 to some value
   2709 			glBindVertexArray(vaos[0]);
   2710 			glVertexAttribDivisor(0, 1);
   2711 			expectError(GL_NO_ERROR);
   2712 
   2713 			// set vao 1 to some other value
   2714 			glBindVertexArray(vaos[1]);
   2715 			glVertexAttribDivisor(0, 5);
   2716 			expectError(GL_NO_ERROR);
   2717 
   2718 			// verify vao 1 state
   2719 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_DIVISOR, 5);
   2720 			expectError(GL_NO_ERROR);
   2721 
   2722 			// verify vao 0 state
   2723 			glBindVertexArray(vaos[0]);
   2724 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_DIVISOR, 1);
   2725 			expectError(GL_NO_ERROR);
   2726 
   2727 			glDeleteVertexArrays(2, vaos);
   2728 			expectError(GL_NO_ERROR);
   2729 		}
   2730 	}
   2731 };
   2732 
   2733 class VertexAttributeBufferBindingCase : public ApiCase
   2734 {
   2735 public:
   2736 	VertexAttributeBufferBindingCase (Context& context, const char* name, const char* description)
   2737 		: ApiCase(context, name, description)
   2738 	{
   2739 	}
   2740 
   2741 	void test (void)
   2742 	{
   2743 		// Test with default VAO
   2744 		{
   2745 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2746 
   2747 			// initial
   2748 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, 0);
   2749 
   2750 			GLuint bufferID;
   2751 			glGenBuffers(1, &bufferID);
   2752 			glBindBuffer(GL_ARRAY_BUFFER, bufferID);
   2753 			expectError(GL_NO_ERROR);
   2754 
   2755 			glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, DE_NULL);
   2756 			expectError(GL_NO_ERROR);
   2757 
   2758 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, bufferID);
   2759 
   2760 			glDeleteBuffers(1, &bufferID);
   2761 			expectError(GL_NO_ERROR);
   2762 		}
   2763 
   2764 		// Test with multiple VAOs
   2765 		{
   2766 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2767 
   2768 			GLuint vaos[2] = {0};
   2769 			GLuint bufs[2] = {0};
   2770 
   2771 			glGenBuffers(2, bufs);
   2772 			expectError(GL_NO_ERROR);
   2773 
   2774 			glGenVertexArrays(2, vaos);
   2775 			expectError(GL_NO_ERROR);
   2776 
   2777 			// set vao 0 to some value
   2778 			glBindVertexArray(vaos[0]);
   2779 			glBindBuffer(GL_ARRAY_BUFFER, bufs[0]);
   2780 			glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, DE_NULL);
   2781 			expectError(GL_NO_ERROR);
   2782 
   2783 			// set vao 1 to some other value
   2784 			glBindVertexArray(vaos[1]);
   2785 			glBindBuffer(GL_ARRAY_BUFFER, bufs[1]);
   2786 			glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, DE_NULL);
   2787 			expectError(GL_NO_ERROR);
   2788 
   2789 			// verify vao 1 state
   2790 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, bufs[1]);
   2791 			expectError(GL_NO_ERROR);
   2792 
   2793 			// verify vao 0 state
   2794 			glBindVertexArray(vaos[0]);
   2795 			verifyVertexAttrib(m_testCtx, *this, 0, GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, bufs[0]);
   2796 			expectError(GL_NO_ERROR);
   2797 
   2798 			glDeleteVertexArrays(2, vaos);
   2799 			glDeleteBuffers(2, bufs);
   2800 			expectError(GL_NO_ERROR);
   2801 		}
   2802 	}
   2803 };
   2804 
   2805 class VertexAttributePointerCase : public ApiCase
   2806 {
   2807 public:
   2808 	VertexAttributePointerCase (Context& context, const char* name, const char* description)
   2809 		: ApiCase(context, name, description)
   2810 	{
   2811 	}
   2812 
   2813 	void test (void)
   2814 	{
   2815 		// Test with default VAO
   2816 		{
   2817 			const tcu::ScopedLogSection section(m_log, "DefaultVAO", "Test with default VAO");
   2818 
   2819 			StateQueryMemoryWriteGuard<GLvoid*> initialState;
   2820 			glGetVertexAttribPointerv(0, GL_VERTEX_ATTRIB_ARRAY_POINTER, &initialState);
   2821 			initialState.verifyValidity(m_testCtx);
   2822 			checkPointerEquals(m_testCtx, initialState, 0);
   2823 
   2824 			const GLfloat vertexData[4] = {0.0f}; // never accessed
   2825 			const PointerData pointers[] =
   2826 			{
   2827 				{ 1, GL_BYTE,				0,	GL_FALSE, &vertexData[2] },
   2828 				{ 1, GL_SHORT,				0,	GL_FALSE, &vertexData[1] },
   2829 				{ 1, GL_INT,				0,	GL_FALSE, &vertexData[2] },
   2830 				{ 1, GL_FIXED,				0,	GL_FALSE, &vertexData[2] },
   2831 				{ 1, GL_FIXED,				0,	GL_FALSE, &vertexData[1] },
   2832 				{ 1, GL_FLOAT,				0,	GL_FALSE, &vertexData[0] },
   2833 				{ 1, GL_FLOAT,				0,	GL_FALSE, &vertexData[3] },
   2834 				{ 1, GL_FLOAT,				0,	GL_FALSE, &vertexData[2] },
   2835 				{ 1, GL_HALF_FLOAT,			0,	GL_FALSE, &vertexData[0] },
   2836 				{ 4, GL_HALF_FLOAT,			0,	GL_FALSE, &vertexData[1] },
   2837 				{ 4, GL_HALF_FLOAT,			0,	GL_FALSE, &vertexData[2] },
   2838 			};
   2839 
   2840 			for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(pointers); ++ndx)
   2841 			{
   2842 				glVertexAttribPointer(0, pointers[ndx].size, pointers[ndx].type, pointers[ndx].normalized, pointers[ndx].stride, pointers[ndx].pointer);
   2843 				expectError(GL_NO_ERROR);
   2844 
   2845 				StateQueryMemoryWriteGuard<GLvoid*> state;
   2846 				glGetVertexAttribPointerv(0, GL_VERTEX_ATTRIB_ARRAY_POINTER, &state);
   2847 				state.verifyValidity(m_testCtx);
   2848 				checkPointerEquals(m_testCtx, state, pointers[ndx].pointer);
   2849 			}
   2850 		}
   2851 
   2852 		// Test with multiple VAOs
   2853 		{
   2854 			const tcu::ScopedLogSection section(m_log, "WithVAO", "Test with VAO");
   2855 
   2856 			GLuint vaos[2] = {0};
   2857 			GLuint bufs[2] = {0};
   2858 
   2859 			glGenBuffers(2, bufs);
   2860 			expectError(GL_NO_ERROR);
   2861 
   2862 			glGenVertexArrays(2, vaos);
   2863 			expectError(GL_NO_ERROR);
   2864 
   2865 			// set vao 0 to some value
   2866 			glBindVertexArray(vaos[0]);
   2867 			glBindBuffer(GL_ARRAY_BUFFER, bufs[0]);
   2868 			glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, ((deUint8*)DE_NULL) + 8);
   2869 			expectError(GL_NO_ERROR);
   2870 
   2871 			// set vao 1 to some other value
   2872 			glBindVertexArray(vaos[1]);
   2873 			glBindBuffer(GL_ARRAY_BUFFER, bufs[1]);
   2874 			glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, ((deUint8*)DE_NULL) + 4);
   2875 			expectError(GL_NO_ERROR);
   2876 
   2877 			// verify vao 1 state
   2878 			{
   2879 				StateQueryMemoryWriteGuard<GLvoid*> state;
   2880 				glGetVertexAttribPointerv(0, GL_VERTEX_ATTRIB_ARRAY_POINTER, &state);
   2881 				state.verifyValidity(m_testCtx);
   2882 				checkPointerEquals(m_testCtx, state, ((deUint8*)DE_NULL) + 4);
   2883 			}
   2884 			expectError(GL_NO_ERROR);
   2885 
   2886 			// verify vao 0 state
   2887 			glBindVertexArray(vaos[0]);
   2888 			{
   2889 				StateQueryMemoryWriteGuard<GLvoid*> state;
   2890 				glGetVertexAttribPointerv(0, GL_VERTEX_ATTRIB_ARRAY_POINTER, &state);
   2891 				state.verifyValidity(m_testCtx);
   2892 				checkPointerEquals(m_testCtx, state, ((deUint8*)DE_NULL) + 8);
   2893 			}
   2894 			expectError(GL_NO_ERROR);
   2895 
   2896 			glDeleteVertexArrays(2, vaos);
   2897 			glDeleteBuffers(2, bufs);
   2898 			expectError(GL_NO_ERROR);
   2899 		}
   2900 	}
   2901 };
   2902 
   2903 class UniformValueFloatCase : public ApiCase
   2904 {
   2905 public:
   2906 	UniformValueFloatCase (Context& context, const char* name, const char* description)
   2907 		: ApiCase(context, name, description)
   2908 	{
   2909 	}
   2910 
   2911 	void test (void)
   2912 	{
   2913 		static const char* testVertSource =
   2914 			"#version 300 es\n"
   2915 			"uniform highp float floatUniform;\n"
   2916 			"uniform highp vec2 float2Uniform;\n"
   2917 			"uniform highp vec3 float3Uniform;\n"
   2918 			"uniform highp vec4 float4Uniform;\n"
   2919 			"void main (void)\n"
   2920 			"{\n"
   2921 			"	gl_Position = vec4(floatUniform + float2Uniform.x + float3Uniform.x + float4Uniform.x);\n"
   2922 			"}\n";
   2923 		static const char* testFragSource =
   2924 			"#version 300 es\n"
   2925 			"layout(location = 0) out mediump vec4 fragColor;"
   2926 			"void main (void)\n"
   2927 			"{\n"
   2928 			"	fragColor = vec4(0.0);\n"
   2929 			"}\n";
   2930 
   2931 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   2932 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   2933 
   2934 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   2935 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   2936 
   2937 		glCompileShader(shaderVert);
   2938 		glCompileShader(shaderFrag);
   2939 		expectError(GL_NO_ERROR);
   2940 
   2941 		GLuint program = glCreateProgram();
   2942 		glAttachShader(program, shaderVert);
   2943 		glAttachShader(program, shaderFrag);
   2944 		glLinkProgram(program);
   2945 		glUseProgram(program);
   2946 		expectError(GL_NO_ERROR);
   2947 
   2948 		GLint location;
   2949 
   2950 		location = glGetUniformLocation(program,"floatUniform");
   2951 		glUniform1f(location, 1.0f);
   2952 		verifyUniformValue1f(m_testCtx, *this, program, location, 1.0f);
   2953 
   2954 		location = glGetUniformLocation(program,"float2Uniform");
   2955 		glUniform2f(location, 1.0f, 2.0f);
   2956 		verifyUniformValue2f(m_testCtx, *this, program, location, 1.0f, 2.0f);
   2957 
   2958 		location = glGetUniformLocation(program,"float3Uniform");
   2959 		glUniform3f(location, 1.0f, 2.0f, 3.0f);
   2960 		verifyUniformValue3f(m_testCtx, *this, program, location, 1.0f, 2.0f, 3.0f);
   2961 
   2962 		location = glGetUniformLocation(program,"float4Uniform");
   2963 		glUniform4f(location, 1.0f, 2.0f, 3.0f, 4.0f);
   2964 		verifyUniformValue4f(m_testCtx, *this, program, location, 1.0f, 2.0f, 3.0f, 4.0f);
   2965 
   2966 		glUseProgram(0);
   2967 		glDeleteShader(shaderVert);
   2968 		glDeleteShader(shaderFrag);
   2969 		glDeleteProgram(program);
   2970 		expectError(GL_NO_ERROR);
   2971 	}
   2972 };
   2973 
   2974 class UniformValueIntCase : public ApiCase
   2975 {
   2976 public:
   2977 	UniformValueIntCase (Context& context, const char* name, const char* description)
   2978 		: ApiCase(context, name, description)
   2979 	{
   2980 	}
   2981 
   2982 	void test (void)
   2983 	{
   2984 		static const char* testVertSource =
   2985 			"#version 300 es\n"
   2986 			"uniform highp int intUniform;\n"
   2987 			"uniform highp ivec2 int2Uniform;\n"
   2988 			"uniform highp ivec3 int3Uniform;\n"
   2989 			"uniform highp ivec4 int4Uniform;\n"
   2990 			"void main (void)\n"
   2991 			"{\n"
   2992 			"	gl_Position = vec4(float(intUniform + int2Uniform.x + int3Uniform.x + int4Uniform.x));\n"
   2993 			"}\n";
   2994 		static const char* testFragSource =
   2995 			"#version 300 es\n"
   2996 			"layout(location = 0) out mediump vec4 fragColor;"
   2997 			"void main (void)\n"
   2998 			"{\n"
   2999 			"	fragColor = vec4(0.0);\n"
   3000 			"}\n";
   3001 
   3002 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   3003 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   3004 
   3005 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   3006 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   3007 
   3008 		glCompileShader(shaderVert);
   3009 		glCompileShader(shaderFrag);
   3010 		expectError(GL_NO_ERROR);
   3011 
   3012 		GLuint program = glCreateProgram();
   3013 		glAttachShader(program, shaderVert);
   3014 		glAttachShader(program, shaderFrag);
   3015 		glLinkProgram(program);
   3016 		glUseProgram(program);
   3017 		expectError(GL_NO_ERROR);
   3018 
   3019 		GLint location;
   3020 
   3021 		location = glGetUniformLocation(program,"intUniform");
   3022 		glUniform1i(location, 1);
   3023 		verifyUniformValue1i(m_testCtx, *this, program, location, 1);
   3024 
   3025 		location = glGetUniformLocation(program,"int2Uniform");
   3026 		glUniform2i(location, 1, 2);
   3027 		verifyUniformValue2i(m_testCtx, *this, program, location, 1, 2);
   3028 
   3029 		location = glGetUniformLocation(program,"int3Uniform");
   3030 		glUniform3i(location, 1, 2, 3);
   3031 		verifyUniformValue3i(m_testCtx, *this, program, location, 1, 2, 3);
   3032 
   3033 		location = glGetUniformLocation(program,"int4Uniform");
   3034 		glUniform4i(location, 1, 2, 3, 4);
   3035 		verifyUniformValue4i(m_testCtx, *this, program, location, 1, 2, 3, 4);
   3036 
   3037 		glUseProgram(0);
   3038 		glDeleteShader(shaderVert);
   3039 		glDeleteShader(shaderFrag);
   3040 		glDeleteProgram(program);
   3041 		expectError(GL_NO_ERROR);
   3042 	}
   3043 };
   3044 
   3045 class UniformValueUintCase : public ApiCase
   3046 {
   3047 public:
   3048 	UniformValueUintCase (Context& context, const char* name, const char* description)
   3049 		: ApiCase(context, name, description)
   3050 	{
   3051 	}
   3052 
   3053 	void test (void)
   3054 	{
   3055 		static const char* testVertSource =
   3056 			"#version 300 es\n"
   3057 			"uniform highp uint uintUniform;\n"
   3058 			"uniform highp uvec2 uint2Uniform;\n"
   3059 			"uniform highp uvec3 uint3Uniform;\n"
   3060 			"uniform highp uvec4 uint4Uniform;\n"
   3061 			"void main (void)\n"
   3062 			"{\n"
   3063 			"	gl_Position = vec4(float(uintUniform + uint2Uniform.x + uint3Uniform.x + uint4Uniform.x));\n"
   3064 			"}\n";
   3065 		static const char* testFragSource =
   3066 			"#version 300 es\n"
   3067 			"layout(location = 0) out mediump vec4 fragColor;"
   3068 			"void main (void)\n"
   3069 			"{\n"
   3070 			"	fragColor = vec4(0.0);\n"
   3071 			"}\n";
   3072 
   3073 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   3074 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   3075 
   3076 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   3077 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   3078 
   3079 		glCompileShader(shaderVert);
   3080 		glCompileShader(shaderFrag);
   3081 		expectError(GL_NO_ERROR);
   3082 
   3083 		GLuint program = glCreateProgram();
   3084 		glAttachShader(program, shaderVert);
   3085 		glAttachShader(program, shaderFrag);
   3086 		glLinkProgram(program);
   3087 		glUseProgram(program);
   3088 		expectError(GL_NO_ERROR);
   3089 
   3090 		GLint location;
   3091 
   3092 		location = glGetUniformLocation(program,"uintUniform");
   3093 		glUniform1ui(location, 1);
   3094 		verifyUniformValue1ui(m_testCtx, *this, program, location, 1);
   3095 
   3096 		location = glGetUniformLocation(program,"uint2Uniform");
   3097 		glUniform2ui(location, 1, 2);
   3098 		verifyUniformValue2ui(m_testCtx, *this, program, location, 1, 2);
   3099 
   3100 		location = glGetUniformLocation(program,"uint3Uniform");
   3101 		glUniform3ui(location, 1, 2, 3);
   3102 		verifyUniformValue3ui(m_testCtx, *this, program, location, 1, 2, 3);
   3103 
   3104 		location = glGetUniformLocation(program,"uint4Uniform");
   3105 		glUniform4ui(location, 1, 2, 3, 4);
   3106 		verifyUniformValue4ui(m_testCtx, *this, program, location, 1, 2, 3, 4);
   3107 
   3108 		glUseProgram(0);
   3109 		glDeleteShader(shaderVert);
   3110 		glDeleteShader(shaderFrag);
   3111 		glDeleteProgram(program);
   3112 		expectError(GL_NO_ERROR);
   3113 	}
   3114 };
   3115 
   3116 
   3117 class UniformValueBooleanCase : public ApiCase
   3118 {
   3119 public:
   3120 	UniformValueBooleanCase (Context& context, const char* name, const char* description)
   3121 		: ApiCase(context, name, description)
   3122 	{
   3123 	}
   3124 
   3125 	void test (void)
   3126 	{
   3127 		static const char* testVertSource =
   3128 			"#version 300 es\n"
   3129 			"uniform bool boolUniform;\n"
   3130 			"uniform bvec2 bool2Uniform;\n"
   3131 			"uniform bvec3 bool3Uniform;\n"
   3132 			"uniform bvec4 bool4Uniform;\n"
   3133 			"void main (void)\n"
   3134 			"{\n"
   3135 			"	gl_Position = vec4(float(boolUniform) + float(bool2Uniform.x) + float(bool3Uniform.x) + float(bool4Uniform.x));\n"
   3136 			"}\n";
   3137 		static const char* testFragSource =
   3138 			"#version 300 es\n"
   3139 			"layout(location = 0) out mediump vec4 fragColor;"
   3140 			"void main (void)\n"
   3141 			"{\n"
   3142 			"	fragColor = vec4(0.0);\n"
   3143 			"}\n";
   3144 
   3145 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   3146 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   3147 
   3148 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   3149 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   3150 
   3151 		glCompileShader(shaderVert);
   3152 		glCompileShader(shaderFrag);
   3153 		expectError(GL_NO_ERROR);
   3154 
   3155 		GLuint program = glCreateProgram();
   3156 		glAttachShader(program, shaderVert);
   3157 		glAttachShader(program, shaderFrag);
   3158 		glLinkProgram(program);
   3159 		glUseProgram(program);
   3160 		expectError(GL_NO_ERROR);
   3161 
   3162 		GLint location;
   3163 
   3164 		// int conversion
   3165 
   3166 		location = glGetUniformLocation(program,"boolUniform");
   3167 		glUniform1i(location, 1);
   3168 		verifyUniformValue1i(m_testCtx, *this, program, location, 1);
   3169 
   3170 		location = glGetUniformLocation(program,"bool2Uniform");
   3171 		glUniform2i(location, 1, 2);
   3172 		verifyUniformValue2i(m_testCtx, *this, program, location, 1, 1);
   3173 
   3174 		location = glGetUniformLocation(program,"bool3Uniform");
   3175 		glUniform3i(location, 0, 1, 2);
   3176 		verifyUniformValue3i(m_testCtx, *this, program, location, 0, 1, 1);
   3177 
   3178 		location = glGetUniformLocation(program,"bool4Uniform");
   3179 		glUniform4i(location, 1, 0, 1, -1);
   3180 		verifyUniformValue4i(m_testCtx, *this, program, location, 1, 0, 1, 1);
   3181 
   3182 		// float conversion
   3183 
   3184 		location = glGetUniformLocation(program,"boolUniform");
   3185 		glUniform1f(location, 1.0f);
   3186 		verifyUniformValue1i(m_testCtx, *this, program, location, 1);
   3187 
   3188 		location = glGetUniformLocation(program,"bool2Uniform");
   3189 		glUniform2f(location, 1.0f, 0.1f);
   3190 		verifyUniformValue2i(m_testCtx, *this, program, location, 1, 1);
   3191 
   3192 		location = glGetUniformLocation(program,"bool3Uniform");
   3193 		glUniform3f(location, 0.0f, 0.1f, -0.1f);
   3194 		verifyUniformValue3i(m_testCtx, *this, program, location, 0, 1, 1);
   3195 
   3196 		location = glGetUniformLocation(program,"bool4Uniform");
   3197 		glUniform4f(location, 1.0f, 0.0f, 0.1f, -0.9f);
   3198 		verifyUniformValue4i(m_testCtx, *this, program, location, 1, 0, 1, 1);
   3199 
   3200 		glUseProgram(0);
   3201 		glDeleteShader(shaderVert);
   3202 		glDeleteShader(shaderFrag);
   3203 		glDeleteProgram(program);
   3204 		expectError(GL_NO_ERROR);
   3205 	}
   3206 };
   3207 
   3208 class UniformValueSamplerCase : public ApiCase
   3209 {
   3210 public:
   3211 	UniformValueSamplerCase (Context& context, const char* name, const char* description)
   3212 		: ApiCase(context, name, description)
   3213 	{
   3214 	}
   3215 
   3216 	void test (void)
   3217 	{
   3218 		static const char* testVertSource =
   3219 			"#version 300 es\n"
   3220 			"void main (void)\n"
   3221 			"{\n"
   3222 			"	gl_Position = vec4(0.0);\n"
   3223 			"}\n";
   3224 		static const char* testFragSource =
   3225 			"#version 300 es\n"
   3226 			"uniform highp sampler2D uniformSampler;\n"
   3227 			"layout(location = 0) out mediump vec4 fragColor;"
   3228 			"void main (void)\n"
   3229 			"{\n"
   3230 			"	fragColor = vec4(textureSize(uniformSampler, 0).x);\n"
   3231 			"}\n";
   3232 
   3233 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   3234 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   3235 
   3236 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   3237 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   3238 
   3239 		glCompileShader(shaderVert);
   3240 		glCompileShader(shaderFrag);
   3241 		expectError(GL_NO_ERROR);
   3242 
   3243 		GLuint program = glCreateProgram();
   3244 		glAttachShader(program, shaderVert);
   3245 		glAttachShader(program, shaderFrag);
   3246 		glLinkProgram(program);
   3247 		glUseProgram(program);
   3248 		expectError(GL_NO_ERROR);
   3249 
   3250 		GLint location;
   3251 
   3252 		location = glGetUniformLocation(program,"uniformSampler");
   3253 		glUniform1i(location, 1);
   3254 		verifyUniformValue1i(m_testCtx, *this, program, location, 1);
   3255 
   3256 		glUseProgram(0);
   3257 		glDeleteShader(shaderVert);
   3258 		glDeleteShader(shaderFrag);
   3259 		glDeleteProgram(program);
   3260 		expectError(GL_NO_ERROR);
   3261 	}
   3262 };
   3263 
   3264 class UniformValueArrayCase : public ApiCase
   3265 {
   3266 public:
   3267 	UniformValueArrayCase (Context& context, const char* name, const char* description)
   3268 		: ApiCase(context, name, description)
   3269 	{
   3270 	}
   3271 
   3272 	void test (void)
   3273 	{
   3274 		static const char* testVertSource =
   3275 			"#version 300 es\n"
   3276 			"uniform highp float arrayUniform[5];"
   3277 			"uniform highp vec2 array2Uniform[5];"
   3278 			"uniform highp vec3 array3Uniform[5];"
   3279 			"uniform highp vec4 array4Uniform[5];"
   3280 			"void main (void)\n"
   3281 			"{\n"
   3282 			"	gl_Position = \n"
   3283 			"		+ vec4(arrayUniform[0]		+ arrayUniform[1]		+ arrayUniform[2]		+ arrayUniform[3]		+ arrayUniform[4])\n"
   3284 			"		+ vec4(array2Uniform[0].x	+ array2Uniform[1].x	+ array2Uniform[2].x	+ array2Uniform[3].x	+ array2Uniform[4].x)\n"
   3285 			"		+ vec4(array3Uniform[0].x	+ array3Uniform[1].x	+ array3Uniform[2].x	+ array3Uniform[3].x	+ array3Uniform[4].x)\n"
   3286 			"		+ vec4(array4Uniform[0].x	+ array4Uniform[1].x	+ array4Uniform[2].x	+ array4Uniform[3].x	+ array4Uniform[4].x);\n"
   3287 			"}\n";
   3288 		static const char* testFragSource =
   3289 			"#version 300 es\n"
   3290 			"layout(location = 0) out mediump vec4 fragColor;"
   3291 			"void main (void)\n"
   3292 			"{\n"
   3293 			"	fragColor = vec4(0.0);\n"
   3294 			"}\n";
   3295 
   3296 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   3297 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   3298 
   3299 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   3300 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   3301 
   3302 		glCompileShader(shaderVert);
   3303 		glCompileShader(shaderFrag);
   3304 		expectError(GL_NO_ERROR);
   3305 
   3306 		GLuint program = glCreateProgram();
   3307 		glAttachShader(program, shaderVert);
   3308 		glAttachShader(program, shaderFrag);
   3309 		glLinkProgram(program);
   3310 		glUseProgram(program);
   3311 		expectError(GL_NO_ERROR);
   3312 
   3313 		GLint location;
   3314 
   3315 		float uniformValue[5 * 4] =
   3316 		{
   3317 			-1.0f,	0.1f,	4.0f,	800.0f,
   3318 			13.0f,	55.0f,	12.0f,	91.0f,
   3319 			-55.1f,	1.1f,	98.0f,	19.0f,
   3320 			41.0f,	65.0f,	4.0f,	12.2f,
   3321 			95.0f,	77.0f,	32.0f,	48.0f
   3322 		};
   3323 
   3324 		location = glGetUniformLocation(program,"arrayUniform");
   3325 		glUniform1fv(location, 5, uniformValue);
   3326 		expectError(GL_NO_ERROR);
   3327 
   3328 		verifyUniformValue1f(m_testCtx, *this, program, glGetUniformLocation(program,"arrayUniform[0]"), uniformValue[0]);
   3329 		verifyUniformValue1f(m_testCtx, *this, program, glGetUniformLocation(program,"arrayUniform[1]"), uniformValue[1]);
   3330 		verifyUniformValue1f(m_testCtx, *this, program, glGetUniformLocation(program,"arrayUniform[2]"), uniformValue[2]);
   3331 		verifyUniformValue1f(m_testCtx, *this, program, glGetUniformLocation(program,"arrayUniform[3]"), uniformValue[3]);
   3332 		verifyUniformValue1f(m_testCtx, *this, program, glGetUniformLocation(program,"arrayUniform[4]"), uniformValue[4]);
   3333 		expectError(GL_NO_ERROR);
   3334 
   3335 		location = glGetUniformLocation(program,"array2Uniform");
   3336 		glUniform2fv(location, 5, uniformValue);
   3337 		expectError(GL_NO_ERROR);
   3338 
   3339 		verifyUniformValue2f(m_testCtx, *this, program, glGetUniformLocation(program,"array2Uniform[0]"), uniformValue[2 * 0], uniformValue[(2 * 0) + 1]);
   3340 		verifyUniformValue2f(m_testCtx, *this, program, glGetUniformLocation(program,"array2Uniform[1]"), uniformValue[2 * 1], uniformValue[(2 * 1) + 1]);
   3341 		verifyUniformValue2f(m_testCtx, *this, program, glGetUniformLocation(program,"array2Uniform[2]"), uniformValue[2 * 2], uniformValue[(2 * 2) + 1]);
   3342 		verifyUniformValue2f(m_testCtx, *this, program, glGetUniformLocation(program,"array2Uniform[3]"), uniformValue[2 * 3], uniformValue[(2 * 3) + 1]);
   3343 		verifyUniformValue2f(m_testCtx, *this, program, glGetUniformLocation(program,"array2Uniform[4]"), uniformValue[2 * 4], uniformValue[(2 * 4) + 1]);
   3344 		expectError(GL_NO_ERROR);
   3345 
   3346 		location = glGetUniformLocation(program,"array3Uniform");
   3347 		glUniform3fv(location, 5, uniformValue);
   3348 		expectError(GL_NO_ERROR);
   3349 
   3350 		verifyUniformValue3f(m_testCtx, *this, program, glGetUniformLocation(program,"array3Uniform[0]"), uniformValue[3 * 0], uniformValue[(3 * 0) + 1], uniformValue[(3 * 0) + 2]);
   3351 		verifyUniformValue3f(m_testCtx, *this, program, glGetUniformLocation(program,"array3Uniform[1]"), uniformValue[3 * 1], uniformValue[(3 * 1) + 1], uniformValue[(3 * 1) + 2]);
   3352 		verifyUniformValue3f(m_testCtx, *this, program, glGetUniformLocation(program,"array3Uniform[2]"), uniformValue[3 * 2], uniformValue[(3 * 2) + 1], uniformValue[(3 * 2) + 2]);
   3353 		verifyUniformValue3f(m_testCtx, *this, program, glGetUniformLocation(program,"array3Uniform[3]"), uniformValue[3 * 3], uniformValue[(3 * 3) + 1], uniformValue[(3 * 3) + 2]);
   3354 		verifyUniformValue3f(m_testCtx, *this, program, glGetUniformLocation(program,"array3Uniform[4]"), uniformValue[3 * 4], uniformValue[(3 * 4) + 1], uniformValue[(3 * 4) + 2]);
   3355 		expectError(GL_NO_ERROR);
   3356 
   3357 		location = glGetUniformLocation(program,"array4Uniform");
   3358 		glUniform4fv(location, 5, uniformValue);
   3359 		expectError(GL_NO_ERROR);
   3360 
   3361 		verifyUniformValue4f(m_testCtx, *this, program, glGetUniformLocation(program,"array4Uniform[0]"), uniformValue[4 * 0], uniformValue[(4 * 0) + 1], uniformValue[(4 * 0) + 2], uniformValue[(4 * 0) + 3]);
   3362 		verifyUniformValue4f(m_testCtx, *this, program, glGetUniformLocation(program,"array4Uniform[1]"), uniformValue[4 * 1], uniformValue[(4 * 1) + 1], uniformValue[(4 * 1) + 2], uniformValue[(4 * 1) + 3]);
   3363 		verifyUniformValue4f(m_testCtx, *this, program, glGetUniformLocation(program,"array4Uniform[2]"), uniformValue[4 * 2], uniformValue[(4 * 2) + 1], uniformValue[(4 * 2) + 2], uniformValue[(4 * 2) + 3]);
   3364 		verifyUniformValue4f(m_testCtx, *this, program, glGetUniformLocation(program,"array4Uniform[3]"), uniformValue[4 * 3], uniformValue[(4 * 3) + 1], uniformValue[(4 * 3) + 2], uniformValue[(4 * 3) + 3]);
   3365 		verifyUniformValue4f(m_testCtx, *this, program, glGetUniformLocation(program,"array4Uniform[4]"), uniformValue[4 * 4], uniformValue[(4 * 4) + 1], uniformValue[(4 * 4) + 2], uniformValue[(4 * 4) + 3]);
   3366 		expectError(GL_NO_ERROR);
   3367 
   3368 		glUseProgram(0);
   3369 		glDeleteShader(shaderVert);
   3370 		glDeleteShader(shaderFrag);
   3371 		glDeleteProgram(program);
   3372 		expectError(GL_NO_ERROR);
   3373 	}
   3374 };
   3375 
   3376 class UniformValueMatrixCase : public ApiCase
   3377 {
   3378 public:
   3379 	UniformValueMatrixCase (Context& context, const char* name, const char* description)
   3380 		: ApiCase(context, name, description)
   3381 	{
   3382 	}
   3383 
   3384 	void test (void)
   3385 	{
   3386 		static const char* testVertSource =
   3387 			"#version 300 es\n"
   3388 			"uniform highp mat2 mat2Uniform;"
   3389 			"uniform highp mat3 mat3Uniform;"
   3390 			"uniform highp mat4 mat4Uniform;"
   3391 			"void main (void)\n"
   3392 			"{\n"
   3393 			"	gl_Position = vec4(mat2Uniform[0][0] + mat3Uniform[0][0] + mat4Uniform[0][0]);\n"
   3394 			"}\n";
   3395 		static const char* testFragSource =
   3396 			"#version 300 es\n"
   3397 			"layout(location = 0) out mediump vec4 fragColor;"
   3398 			"void main (void)\n"
   3399 			"{\n"
   3400 			"	fragColor = vec4(0.0);\n"
   3401 			"}\n";
   3402 
   3403 		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
   3404 		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);
   3405 
   3406 		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
   3407 		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);
   3408 
   3409 		glCompileShader(shaderVert);
   3410 		glCompileShader(shaderFrag);
   3411 		expectError(GL_NO_ERROR);
   3412 
   3413 		GLuint program = glCreateProgram();
   3414 		glAttachShader(program, shaderVert);
   3415 		glAttachShader(program, shaderFrag);
   3416 		glLinkProgram(program);
   3417 		glUseProgram(program);
   3418 		expectError(GL_NO_ERROR);
   3419 
   3420 		GLint location;
   3421 
   3422 		float matrixValues[4 * 4] =
   3423 		{
   3424 			-1.0f,	0.1f,	4.0f,	800.0f,
   3425 			13.0f,	55.0f,	12.0f,	91.0f,
   3426 			-55.1f,	1.1f,	98.0f,	19.0f,
   3427 			41.0f,	65.0f,	4.0f,	12.2f,
   3428 		};
   3429 
   3430 		// the values of the matrix are returned in column major order but they can be given in either order
   3431 
   3432 		location = glGetUniformLocation(program,"mat2Uniform");
   3433 		glUniformMatrix2fv(location, 1, GL_FALSE, matrixValues);
   3434 		verifyUniformMatrixValues<2>(m_testCtx, *this, program, location, matrixValues, false);
   3435 		glUniformMatrix2fv(location, 1, GL_TRUE, matrixValues);
   3436 		verifyUniformMatrixValues<2>(m_testCtx, *this, program, location, matrixValues, true);
   3437 
   3438 		location = glGetUniformLocation(program,"mat3Uniform");
   3439 		glUniformMatrix3fv(location, 1, GL_FALSE, matrixValues);
   3440 		verifyUniformMatrixValues<3>(m_testCtx, *this, program, location, matrixValues, false);
   3441 		glUniformMatrix3fv(location, 1, GL_TRUE, matrixValues);
   3442 		verifyUniformMatrixValues<3>(m_testCtx, *this, program, location, matrixValues, true);
   3443 
   3444 		location = glGetUniformLocation(program,"mat4Uniform");
   3445 		glUniformMatrix4fv(location, 1, GL_FALSE, matrixValues);
   3446 		verifyUniformMatrixValues<4>(m_testCtx, *this, program, location, matrixValues, false);
   3447 		glUniformMatrix4fv(location, 1, GL_TRUE, matrixValues);
   3448 		verifyUniformMatrixValues<4>(m_testCtx, *this, program, location, matrixValues, true);
   3449 
   3450 		glUseProgram(0);
   3451 		glDeleteShader(shaderVert);
   3452 		glDeleteShader(shaderFrag);
   3453 		glDeleteProgram(program);
   3454 		expectError(GL_NO_ERROR);
   3455 	}
   3456 };
   3457 
   3458 class PrecisionFormatCase : public ApiCase
   3459 {
   3460 public:
   3461 	struct RequiredFormat
   3462 	{
   3463 		int negativeRange;
   3464 		int positiveRange;
   3465 		int precision;
   3466 	};
   3467 
   3468 	PrecisionFormatCase (Context& context, const char* name, const char* description, glw::GLenum shaderType, glw::GLenum precisionType)
   3469 		: ApiCase			(context, name, description)
   3470 		, m_shaderType		(shaderType)
   3471 		, m_precisionType	(precisionType)
   3472 	{
   3473 	}
   3474 
   3475 private:
   3476 	void test (void)
   3477 	{
   3478 		const RequiredFormat											expected = getRequiredFormat();
   3479 		bool															error = false;
   3480 		gls::StateQueryUtil::StateQueryMemoryWriteGuard<glw::GLboolean>	shaderCompiler;
   3481 		gls::StateQueryUtil::StateQueryMemoryWriteGuard<glw::GLint[2]>	range;
   3482 		gls::StateQueryUtil::StateQueryMemoryWriteGuard<glw::GLint>		precision;
   3483 
   3484 		// query values
   3485 		glGetShaderPrecisionFormat(m_shaderType, m_precisionType, range, &precision);
   3486 		expectError(GL_NO_ERROR);
   3487 
   3488 		if (!range.verifyValidity(m_testCtx))
   3489 			return;
   3490 		if (!precision.verifyValidity(m_testCtx))
   3491 			return;
   3492 
   3493 		m_log
   3494 			<< tcu::TestLog::Message
   3495 			<< "range[0] = " << range[0] << "\n"
   3496 			<< "range[1] = " << range[1] << "\n"
   3497 			<< "precision = " << precision
   3498 			<< tcu::TestLog::EndMessage;
   3499 
   3500 		// verify values
   3501 
   3502 		if (m_precisionType == GL_HIGH_FLOAT)
   3503 		{
   3504 			// highp float must be IEEE 754 single
   3505 
   3506 			if (range[0] != expected.negativeRange ||
   3507 				range[1] != expected.positiveRange ||
   3508 				precision != expected.precision)
   3509 			{
   3510 				m_log
   3511 					<< tcu::TestLog::Message
   3512 					<< "// ERROR: Invalid precision format, expected:\n"
   3513 					<< "\trange[0] = " << expected.negativeRange << "\n"
   3514 					<< "\trange[1] = " << expected.positiveRange << "\n"
   3515 					<< "\tprecision = " << expected.precision
   3516 					<< tcu::TestLog::EndMessage;
   3517 				error = true;
   3518 			}
   3519 		}
   3520 		else
   3521 		{
   3522 			if (range[0] < expected.negativeRange)
   3523 			{
   3524 				m_log << tcu::TestLog::Message << "// ERROR: Invalid range[0], expected greater or equal to " << expected.negativeRange << tcu::TestLog::EndMessage;
   3525 				error = true;
   3526 			}
   3527 
   3528 			if (range[1] < expected.positiveRange)
   3529 			{
   3530 				m_log << tcu::TestLog::Message << "// ERROR: Invalid range[1], expected greater or equal to " << expected.positiveRange << tcu::TestLog::EndMessage;
   3531 				error = true;
   3532 			}
   3533 
   3534 			if (precision < expected.precision)
   3535 			{
   3536 				m_log << tcu::TestLog::Message << "// ERROR: Invalid precision, expected greater or equal to " << expected.precision << tcu::TestLog::EndMessage;
   3537 				error = true;
   3538 			}
   3539 		}
   3540 
   3541 		if (error)
   3542 			m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid precision/range");
   3543 	}
   3544 
   3545 	RequiredFormat getRequiredFormat (void) const
   3546 	{
   3547 		// Precisions for different types.
   3548 		const RequiredFormat requirements[] =
   3549 		{
   3550 			{   0,   0,  8 }, //!< lowp float
   3551 			{  13,  13, 10 }, //!< mediump float
   3552 			{ 127, 127, 23 }, //!< highp float
   3553 			{   8,   7,  0 }, //!< lowp int
   3554 			{  15,  14,  0 }, //!< mediump int
   3555 			{  31,  30,  0 }, //!< highp int
   3556 		};
   3557 		const int ndx = (int)m_precisionType - (int)GL_LOW_FLOAT;
   3558 
   3559 		DE_ASSERT(ndx >= 0);
   3560 		DE_ASSERT(ndx < DE_LENGTH_OF_ARRAY(requirements));
   3561 		return requirements[ndx];
   3562 	}
   3563 
   3564 	const glw::GLenum m_shaderType;
   3565 	const glw::GLenum m_precisionType;
   3566 };
   3567 
   3568 } // anonymous
   3569 
   3570 
   3571 ShaderStateQueryTests::ShaderStateQueryTests (Context& context)
   3572 	: TestCaseGroup(context, "shader", "Shader State Query tests")
   3573 {
   3574 }
   3575 
   3576 void ShaderStateQueryTests::init (void)
   3577 {
   3578 	// shader
   3579 	addChild(new ShaderTypeCase						(m_context, "shader_type",							"SHADER_TYPE"));
   3580 	addChild(new ShaderCompileStatusCase			(m_context, "shader_compile_status",				"COMPILE_STATUS"));
   3581 	addChild(new ShaderInfoLogCase					(m_context, "shader_info_log_length",				"INFO_LOG_LENGTH"));
   3582 	addChild(new ShaderSourceCase					(m_context, "shader_source_length",					"SHADER_SOURCE_LENGTH"));
   3583 
   3584 	// shader and program
   3585 	addChild(new DeleteStatusCase					(m_context, "delete_status",						"DELETE_STATUS"));
   3586 
   3587 	// vertex-attrib
   3588 	addChild(new CurrentVertexAttribInitialCase		(m_context, "current_vertex_attrib_initial",		"CURRENT_VERTEX_ATTRIB"));
   3589 	addChild(new CurrentVertexAttribFloatCase		(m_context, "current_vertex_attrib_float",			"CURRENT_VERTEX_ATTRIB"));
   3590 	addChild(new CurrentVertexAttribIntCase			(m_context, "current_vertex_attrib_int",			"CURRENT_VERTEX_ATTRIB"));
   3591 	addChild(new CurrentVertexAttribUintCase		(m_context, "current_vertex_attrib_uint",			"CURRENT_VERTEX_ATTRIB"));
   3592 	addChild(new CurrentVertexAttribConversionCase	(m_context, "current_vertex_attrib_float_to_int",	"CURRENT_VERTEX_ATTRIB"));
   3593 
   3594 	// program
   3595 	addChild(new ProgramInfoLogCase					(m_context, "program_info_log_length",				"INFO_LOG_LENGTH"));
   3596 	addChild(new ProgramValidateStatusCase			(m_context, "program_validate_status",				"VALIDATE_STATUS"));
   3597 	addChild(new ProgramAttachedShadersCase			(m_context, "program_attached_shaders",				"ATTACHED_SHADERS"));
   3598 
   3599 	addChild(new ProgramActiveUniformNameCase		(m_context, "program_active_uniform_name",			"ACTIVE_UNIFORMS and ACTIVE_UNIFORM_MAX_LENGTH"));
   3600 	addChild(new ProgramUniformCase					(m_context, "program_active_uniform_types",			"UNIFORM_TYPE, UNIFORM_SIZE, and UNIFORM_IS_ROW_MAJOR"));
   3601 	addChild(new ProgramActiveUniformBlocksCase		(m_context, "program_active_uniform_blocks",		"ACTIVE_UNIFORM_BLOCK_x"));
   3602 	addChild(new ProgramBinaryCase					(m_context, "program_binary",						"PROGRAM_BINARY_LENGTH and PROGRAM_BINARY_RETRIEVABLE_HINT"));
   3603 
   3604 	// transform feedback
   3605 	addChild(new TransformFeedbackCase				(m_context, "transform_feedback",					"TRANSFORM_FEEDBACK_BUFFER_MODE, TRANSFORM_FEEDBACK_VARYINGS, TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH"));
   3606 
   3607 	// attribute related
   3608 	addChild(new ActiveAttributesCase				(m_context, "active_attributes",					"ACTIVE_ATTRIBUTES and ACTIVE_ATTRIBUTE_MAX_LENGTH"));
   3609 	addChild(new VertexAttributeSizeCase			(m_context, "vertex_attrib_size",					"VERTEX_ATTRIB_ARRAY_SIZE"));
   3610 	addChild(new VertexAttributeTypeCase			(m_context, "vertex_attrib_type",					"VERTEX_ATTRIB_ARRAY_TYPE"));
   3611 	addChild(new VertexAttributeStrideCase			(m_context, "vertex_attrib_stride",					"VERTEX_ATTRIB_ARRAY_STRIDE"));
   3612 	addChild(new VertexAttributeNormalizedCase		(m_context, "vertex_attrib_normalized",				"VERTEX_ATTRIB_ARRAY_NORMALIZED"));
   3613 	addChild(new VertexAttributeIntegerCase			(m_context, "vertex_attrib_integer",				"VERTEX_ATTRIB_ARRAY_INTEGER"));
   3614 	addChild(new VertexAttributeEnabledCase			(m_context, "vertex_attrib_array_enabled",			"VERTEX_ATTRIB_ARRAY_ENABLED"));
   3615 	addChild(new VertexAttributeDivisorCase			(m_context, "vertex_attrib_array_divisor",			"VERTEX_ATTRIB_ARRAY_DIVISOR"));
   3616 	addChild(new VertexAttributeBufferBindingCase	(m_context, "vertex_attrib_array_buffer_binding",	"VERTEX_ATTRIB_ARRAY_BUFFER_BINDING"));
   3617 	addChild(new VertexAttributePointerCase			(m_context, "vertex_attrib_pointerv",				"GetVertexAttribPointerv"));
   3618 
   3619 	// uniform values
   3620 	addChild(new UniformValueFloatCase				(m_context, "uniform_value_float",					"GetUniform*"));
   3621 	addChild(new UniformValueIntCase				(m_context, "uniform_value_int",					"GetUniform*"));
   3622 	addChild(new UniformValueUintCase				(m_context, "uniform_value_uint",					"GetUniform*"));
   3623 	addChild(new UniformValueBooleanCase			(m_context, "uniform_value_boolean",				"GetUniform*"));
   3624 	addChild(new UniformValueSamplerCase			(m_context, "uniform_value_sampler",				"GetUniform*"));
   3625 	addChild(new UniformValueArrayCase				(m_context, "uniform_value_array",					"GetUniform*"));
   3626 	addChild(new UniformValueMatrixCase				(m_context, "uniform_value_matrix",					"GetUniform*"));
   3627 
   3628 	// precision format query
   3629 	addChild(new PrecisionFormatCase				(m_context, "precision_vertex_lowp_float",			"GetShaderPrecisionFormat",		GL_VERTEX_SHADER,	GL_LOW_FLOAT));
   3630 	addChild(new PrecisionFormatCase				(m_context, "precision_vertex_mediump_float",		"GetShaderPrecisionFormat",		GL_VERTEX_SHADER,	GL_MEDIUM_FLOAT));
   3631 	addChild(new PrecisionFormatCase				(m_context, "precision_vertex_highp_float",			"GetShaderPrecisionFormat",		GL_VERTEX_SHADER,	GL_HIGH_FLOAT));
   3632 	addChild(new PrecisionFormatCase				(m_context, "precision_vertex_lowp_int",			"GetShaderPrecisionFormat",		GL_VERTEX_SHADER,	GL_LOW_INT));
   3633 	addChild(new PrecisionFormatCase				(m_context, "precision_vertex_mediump_int",			"GetShaderPrecisionFormat",		GL_VERTEX_SHADER,	GL_MEDIUM_INT));
   3634 	addChild(new PrecisionFormatCase				(m_context, "precision_vertex_highp_int",			"GetShaderPrecisionFormat",		GL_VERTEX_SHADER,	GL_HIGH_INT));
   3635 	addChild(new PrecisionFormatCase				(m_context, "precision_fragment_lowp_float",		"GetShaderPrecisionFormat",		GL_FRAGMENT_SHADER,	GL_LOW_FLOAT));
   3636 	addChild(new PrecisionFormatCase				(m_context, "precision_fragment_mediump_float",		"GetShaderPrecisionFormat",		GL_FRAGMENT_SHADER,	GL_MEDIUM_FLOAT));
   3637 	addChild(new PrecisionFormatCase				(m_context, "precision_fragment_highp_float",		"GetShaderPrecisionFormat",		GL_FRAGMENT_SHADER,	GL_HIGH_FLOAT));
   3638 	addChild(new PrecisionFormatCase				(m_context, "precision_fragment_lowp_int",			"GetShaderPrecisionFormat",		GL_FRAGMENT_SHADER,	GL_LOW_INT));
   3639 	addChild(new PrecisionFormatCase				(m_context, "precision_fragment_mediump_int",		"GetShaderPrecisionFormat",		GL_FRAGMENT_SHADER,	GL_MEDIUM_INT));
   3640 	addChild(new PrecisionFormatCase				(m_context, "precision_fragment_highp_int",			"GetShaderPrecisionFormat",		GL_FRAGMENT_SHADER,	GL_HIGH_INT));
   3641 }
   3642 
   3643 } // Functional
   3644 } // gles3
   3645 } // deqp
   3646