1/*-------------------------------------------------------------------------
2 * drawElements Quality Program OpenGL ES 2.0 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 Default vertex attribute test
22 *//*--------------------------------------------------------------------*/
23
24#include "es2fDefaultVertexAttributeTests.hpp"
25#include "tcuVector.hpp"
26#include "tcuRenderTarget.hpp"
27#include "tcuSurface.hpp"
28#include "tcuTextureUtil.hpp"
29#include "gluRenderContext.hpp"
30#include "gluCallLogWrapper.hpp"
31#include "gluShaderProgram.hpp"
32#include "gluObjectWrapper.hpp"
33#include "gluPixelTransfer.hpp"
34#include "glwEnums.hpp"
35#include "glwFunctions.hpp"
36#include "deMath.h"
37#include "deStringUtil.hpp"
38#include "deString.h"
39
40#include <limits>
41
42namespace deqp
43{
44namespace gles2
45{
46namespace Functional
47{
48namespace
49{
50
51static const int s_valueRange = 10;
52
53static const char* const s_passThroughFragmentShaderSource =	"varying mediump vec4 v_color;\n"
54																"void main (void)\n"
55																"{\n"
56																"	gl_FragColor = v_color;\n"
57																"}\n";
58
59template <typename T1, int S1, typename T2, int S2>
60tcu::Vector<T1, S1> convertToTypeVec (const tcu::Vector<T2, S2>& v)
61{
62	tcu::Vector<T1, S1> retVal;
63
64	for (int ndx = 0; ndx < S1; ++ndx)
65		retVal[ndx] = T1(0);
66
67	if (S1 == 4)
68		retVal[3] = T1(1);
69
70	for (int ndx = 0; ndx < de::min(S1, S2); ++ndx)
71		retVal[ndx] = T1(v[ndx]);
72
73	return retVal;
74}
75
76class FloatLoader
77{
78public:
79	virtual				~FloatLoader	(void) {};
80
81	// returns the value loaded
82	virtual tcu::Vec4	load			(glu::CallLogWrapper& gl, int index, const tcu::Vec4& v) const = 0;
83};
84
85#define GEN_DIRECT_FLOAT_LOADER(TYPE, COMPS, TYPECODE, CASENAME, VALUES)				\
86	class LoaderVertexAttrib##COMPS##TYPECODE : public FloatLoader						\
87	{																					\
88	public:																				\
89		enum																			\
90		{																				\
91			NORMALIZING = 0,															\
92		};																				\
93		enum																			\
94		{																				\
95			COMPONENTS = COMPS															\
96		};																				\
97		typedef TYPE Type;																\
98																						\
99		tcu::Vec4 load (glu::CallLogWrapper& gl, int index, const tcu::Vec4& v) const	\
100		{																				\
101			tcu::Vector<TYPE, COMPONENTS> value;										\
102			value = convertToTypeVec<Type, COMPONENTS>(v);								\
103																						\
104			gl.glVertexAttrib ##COMPS ##TYPECODE VALUES;								\
105			return convertToTypeVec<float, 4>(value);									\
106		}																				\
107																						\
108		static const char* getCaseName (void)											\
109		{																				\
110			return CASENAME;															\
111		}																				\
112																						\
113		static const char* getName (void)												\
114		{																				\
115			return "VertexAttrib" #COMPS #TYPECODE;										\
116		}																				\
117	}
118
119#define GEN_INDIRECT_FLOAT_LOADER(TYPE, COMPS, TYPECODE, CASENAME)						\
120	class LoaderVertexAttrib##COMPS##TYPECODE : public FloatLoader						\
121	{																					\
122	public:																				\
123		enum																			\
124		{																				\
125			NORMALIZING = 0,															\
126		};																				\
127		enum																			\
128		{																				\
129			COMPONENTS = COMPS															\
130		};																				\
131		typedef TYPE Type;																\
132																						\
133		tcu::Vec4 load (glu::CallLogWrapper& gl, int index, const tcu::Vec4& v) const	\
134		{																				\
135			tcu::Vector<TYPE, COMPONENTS> value;										\
136			value = convertToTypeVec<Type, COMPONENTS>(v);								\
137																						\
138			gl.glVertexAttrib ##COMPS ##TYPECODE (index, value.getPtr());				\
139			return convertToTypeVec<float, 4>(value);									\
140		}																				\
141																						\
142		static const char* getCaseName (void)											\
143		{																				\
144			return CASENAME;															\
145		}																				\
146																						\
147		static const char* getName (void)												\
148		{																				\
149			return "VertexAttrib" #COMPS #TYPECODE;										\
150		}																				\
151	}
152
153GEN_DIRECT_FLOAT_LOADER(float, 1, f, "vertex_attrib_1f", (index, value.x()));
154GEN_DIRECT_FLOAT_LOADER(float, 2, f, "vertex_attrib_2f", (index, value.x(), value.y()));
155GEN_DIRECT_FLOAT_LOADER(float, 3, f, "vertex_attrib_3f", (index, value.x(), value.y(), value.z()));
156GEN_DIRECT_FLOAT_LOADER(float, 4, f, "vertex_attrib_4f", (index, value.x(), value.y(), value.z(), value.w()));
157
158GEN_INDIRECT_FLOAT_LOADER(float, 1, fv, "vertex_attrib_1fv");
159GEN_INDIRECT_FLOAT_LOADER(float, 2, fv, "vertex_attrib_2fv");
160GEN_INDIRECT_FLOAT_LOADER(float, 3, fv, "vertex_attrib_3fv");
161GEN_INDIRECT_FLOAT_LOADER(float, 4, fv, "vertex_attrib_4fv");
162
163class AttributeCase : public TestCase
164{
165									AttributeCase			(Context& ctx, const char* name, const char* desc, const char* funcName, bool normalizing, bool useNegative, glu::DataType dataType);
166public:
167	template<typename LoaderType>
168	static AttributeCase*			create					(Context& ctx, glu::DataType dataType);
169									~AttributeCase			(void);
170
171private:
172	void							init					(void);
173	void							deinit					(void);
174	IterateResult					iterate					(void);
175
176	glu::DataType					getTargetType			(void) const;
177	std::string						genVertexSource			(void) const;
178	bool							renderWithValue			(const tcu::Vec4& v);
179	tcu::Vec4						computeColor			(const tcu::Vec4& value);
180	bool							verifyUnicoloredBuffer	(const tcu::Surface& scene, const tcu::Vec4& refValue);
181
182	const bool						m_normalizing;
183	const bool						m_useNegativeValues;
184	const char* const				m_funcName;
185	const glu::DataType				m_dataType;
186	const FloatLoader*				m_loader;
187	glu::ShaderProgram*				m_program;
188	deUint32						m_bufID;
189	bool							m_allIterationsPassed;
190	int								m_iteration;
191
192	enum
193	{
194		RENDER_SIZE = 32
195	};
196};
197
198AttributeCase::AttributeCase (Context& ctx, const char* name, const char* desc, const char* funcName, bool normalizing, bool useNegative, glu::DataType dataType)
199	: TestCase				(ctx, name, desc)
200	, m_normalizing			(normalizing)
201	, m_useNegativeValues	(useNegative)
202	, m_funcName			(funcName)
203	, m_dataType			(dataType)
204	, m_loader				(DE_NULL)
205	, m_program				(DE_NULL)
206	, m_bufID				(0)
207	, m_allIterationsPassed	(true)
208	, m_iteration			(0)
209{
210}
211
212template<typename LoaderType>
213AttributeCase* AttributeCase::create (Context& ctx, glu::DataType dataType)
214{
215	AttributeCase* retVal = new AttributeCase(ctx,
216											  LoaderType::getCaseName(),
217											  (std::string("Test ") + LoaderType::getName()).c_str(),
218											  LoaderType::getName(),
219											  LoaderType::NORMALIZING != 0,
220											  std::numeric_limits<typename LoaderType::Type>::is_signed,
221											  dataType);
222	retVal->m_loader = new LoaderType();
223	return retVal;
224}
225
226AttributeCase::~AttributeCase (void)
227{
228	deinit();
229}
230
231void AttributeCase::init (void)
232{
233	if (m_context.getRenderTarget().getWidth() < RENDER_SIZE || m_context.getRenderTarget().getHeight() < RENDER_SIZE)
234		throw tcu::NotSupportedError("Render target must be at least " + de::toString<int>(RENDER_SIZE) + "x" + de::toString<int>(RENDER_SIZE));
235
236	// log test info
237
238	{
239		const float			maxRange		= (m_normalizing) ? (1.0f) : (s_valueRange);
240		const float			minRange		= (m_useNegativeValues) ? (-maxRange) : (0.0f);
241
242		m_testCtx.getLog()
243			<< tcu::TestLog::Message
244			<< "Loading attribute values using " << m_funcName << "\n"
245			<< "Attribute type: " << glu::getDataTypeName(m_dataType) << "\n"
246			<< "Attribute value range: [" << minRange << ", " << maxRange << "]"
247			<< tcu::TestLog::EndMessage;
248	}
249
250	// gen shader and base quad
251
252	m_program = new glu::ShaderProgram(m_context.getRenderContext(), glu::ProgramSources() << glu::VertexSource(genVertexSource()) << glu::FragmentSource(s_passThroughFragmentShaderSource));
253	m_testCtx.getLog() << *m_program;
254	if (!m_program->isOk())
255		throw tcu::TestError("could not build program");
256
257	{
258		const tcu::Vec4 fullscreenQuad[] =
259		{
260			tcu::Vec4( 1.0f,  1.0f, 0.0f, 1.0f),
261			tcu::Vec4( 1.0f, -1.0f, 0.0f, 1.0f),
262			tcu::Vec4(-1.0f,  1.0f, 0.0f, 1.0f),
263			tcu::Vec4(-1.0f, -1.0f, 0.0f, 1.0f),
264		};
265
266		const glw::Functions& gl = m_context.getRenderContext().getFunctions();
267
268		gl.genBuffers(1, &m_bufID);
269		gl.bindBuffer(GL_ARRAY_BUFFER, m_bufID);
270		gl.bufferData(GL_ARRAY_BUFFER, sizeof(fullscreenQuad), fullscreenQuad, GL_STATIC_DRAW);
271		GLU_EXPECT_NO_ERROR(gl.getError(), "fill buffer");
272	}
273}
274
275void AttributeCase::deinit (void)
276{
277	delete m_loader;
278	m_loader = DE_NULL;
279
280	delete m_program;
281	m_program = DE_NULL;
282
283	if (m_bufID)
284	{
285		m_context.getRenderContext().getFunctions().deleteBuffers(1, &m_bufID);
286		m_bufID = 0;
287	}
288}
289
290AttributeCase::IterateResult AttributeCase::iterate (void)
291{
292	static const tcu::Vec4 testValues[] =
293	{
294		tcu::Vec4(0.0f, 0.5f, 0.2f, 1.0f),
295		tcu::Vec4(0.1f, 0.7f, 1.0f, 0.6f),
296		tcu::Vec4(0.4f, 0.2f, 0.0f, 0.5f),
297		tcu::Vec4(0.5f, 0.0f, 0.9f, 0.1f),
298		tcu::Vec4(0.6f, 0.2f, 0.2f, 0.9f),
299		tcu::Vec4(0.9f, 1.0f, 0.0f, 0.0f),
300		tcu::Vec4(1.0f, 0.5f, 0.3f, 0.8f),
301	};
302
303	const tcu::ScopedLogSection section(m_testCtx.getLog(), "Iteration", "Iteration " + de::toString(m_iteration+1) + "/" + de::toString(DE_LENGTH_OF_ARRAY(testValues)));
304
305	// Test normalizing transfers with whole range, non-normalizing with up to s_valueRange
306	const tcu::Vec4 testValue = ((m_useNegativeValues) ? (testValues[m_iteration] * 2.0f - tcu::Vec4(1.0f)) : (testValues[m_iteration])) * ((m_normalizing) ? (1.0f) : ((float)s_valueRange));
307
308	if (!renderWithValue(testValue))
309		m_allIterationsPassed = false;
310
311	// continue
312
313	if (++m_iteration < DE_LENGTH_OF_ARRAY(testValues))
314		return CONTINUE;
315
316	if (m_allIterationsPassed)
317		m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
318	else
319		m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got unexpected values");
320
321	return STOP;
322}
323
324std::string AttributeCase::genVertexSource (void) const
325{
326	const int			vectorSize	= (glu::isDataTypeMatrix(m_dataType)) ? (glu::getDataTypeMatrixNumRows(m_dataType)) : (glu::isDataTypeVector(m_dataType)) ? (glu::getDataTypeScalarSize(m_dataType)) : (-1);
327	const char* const	vectorType	= glu::getDataTypeName((glu::isDataTypeMatrix(m_dataType)) ? (glu::getDataTypeVector(glu::TYPE_FLOAT, vectorSize)) : (glu::isDataTypeVector(m_dataType)) ? (glu::getDataTypeVector(glu::TYPE_FLOAT, vectorSize)) : (glu::TYPE_FLOAT));
328	const int			components	= (glu::isDataTypeMatrix(m_dataType)) ? (glu::getDataTypeMatrixNumRows(m_dataType)) : (glu::getDataTypeScalarSize(m_dataType));
329	std::ostringstream	buf;
330
331	buf <<	"attribute highp vec4 a_position;\n"
332			"attribute highp " << glu::getDataTypeName(m_dataType) << " a_value;\n"
333			"varying highp vec4 v_color;\n"
334			"void main (void)\n"
335			"{\n"
336			"	gl_Position = a_position;\n"
337			"\n";
338
339	if (m_normalizing)
340		buf << "	highp " << vectorType << " normalizedValue = " << ((glu::getDataTypeScalarType(m_dataType) == glu::TYPE_FLOAT) ? ("") : (vectorType)) << "(a_value" << ((glu::isDataTypeMatrix(m_dataType)) ? ("[1]") : ("")) << ");\n";
341	else
342		buf << "	highp " << vectorType << " normalizedValue = " << ((glu::getDataTypeScalarType(m_dataType) == glu::TYPE_FLOAT) ? ("") : (vectorType)) << "(a_value" << ((glu::isDataTypeMatrix(m_dataType)) ? ("[1]") : ("")) << ") / float(" << s_valueRange << ");\n";
343
344	if (m_useNegativeValues)
345		buf << "	highp " << vectorType << " positiveNormalizedValue = (normalizedValue + " << vectorType << "(1.0)) / 2.0;\n";
346	else
347		buf << "	highp " << vectorType << " positiveNormalizedValue = normalizedValue;\n";
348
349	if (components == 1)
350		buf << "	v_color = vec4(positiveNormalizedValue, 0.0, 0.0, 1.0);\n";
351	else if (components == 2)
352		buf << "	v_color = vec4(positiveNormalizedValue.xy, 0.0, 1.0);\n";
353	else if (components == 3)
354		buf << "	v_color = vec4(positiveNormalizedValue.xyz, 1.0);\n";
355	else if (components == 4)
356		buf << "	v_color = vec4((positiveNormalizedValue.xy + positiveNormalizedValue.zz) / 2.0, positiveNormalizedValue.w, 1.0);\n";
357	else
358		DE_ASSERT(DE_FALSE);
359
360	buf << "}\n";
361
362	return buf.str();
363}
364
365bool AttributeCase::renderWithValue (const tcu::Vec4& v)
366{
367	glu::CallLogWrapper	gl				(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
368
369	gl.enableLogging(true);
370
371	const int			positionIndex	= gl.glGetAttribLocation(m_program->getProgram(), "a_position");
372	const int			valueIndex		= gl.glGetAttribLocation(m_program->getProgram(), "a_value");
373	tcu::Surface		dest			(RENDER_SIZE, RENDER_SIZE);
374	tcu::Vec4			loadedValue;
375
376	gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
377	gl.glClear(GL_COLOR_BUFFER_BIT);
378	gl.glViewport(0, 0, RENDER_SIZE, RENDER_SIZE);
379	GLU_EXPECT_NO_ERROR(gl.glGetError(), "setup");
380
381	gl.glBindBuffer(GL_ARRAY_BUFFER, m_bufID);
382	gl.glVertexAttribPointer(positionIndex, 4, GL_FLOAT, GL_FALSE, 0, DE_NULL);
383	gl.glEnableVertexAttribArray(positionIndex);
384	GLU_EXPECT_NO_ERROR(gl.glGetError(), "position va");
385
386	// transfer test value. Load to the second column in the matrix case
387	loadedValue = m_loader->load(gl, (glu::isDataTypeMatrix(m_dataType)) ? (valueIndex + 1) : (valueIndex), v);
388	GLU_EXPECT_NO_ERROR(gl.glGetError(), "default va");
389
390	gl.glUseProgram(m_program->getProgram());
391	gl.glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
392	gl.glUseProgram(0);
393	GLU_EXPECT_NO_ERROR(gl.glGetError(), "draw");
394
395	glu::readPixels(m_context.getRenderContext(), 0, 0, dest.getAccess());
396
397	// check whole result is colored correctly
398	return verifyUnicoloredBuffer(dest, computeColor(loadedValue));
399}
400
401tcu::Vec4 AttributeCase::computeColor (const tcu::Vec4& value)
402{
403	const tcu::Vec4 normalizedValue			= value / ((m_normalizing) ? (1.0f) : ((float)s_valueRange));
404	const tcu::Vec4 positiveNormalizedValue = ((m_useNegativeValues) ? ((normalizedValue + tcu::Vec4(1.0f)) / 2.0f) : (normalizedValue));
405	const int		components				= (glu::isDataTypeMatrix(m_dataType)) ? (glu::getDataTypeMatrixNumRows(m_dataType)) : (glu::getDataTypeScalarSize(m_dataType));
406
407	if (components == 1)
408		return tcu::Vec4(positiveNormalizedValue.x(), 0.0f, 0.0f, 1.0f);
409	else if (components == 2)
410		return tcu::Vec4(positiveNormalizedValue.x(), positiveNormalizedValue.y(), 0.0f, 1.0f);
411	else if (components == 3)
412		return tcu::Vec4(positiveNormalizedValue.x(), positiveNormalizedValue.y(), positiveNormalizedValue.z(), 1.0f);
413	else if (components == 4)
414		return tcu::Vec4((positiveNormalizedValue.x() + positiveNormalizedValue.z()) / 2.0f, (positiveNormalizedValue.y() + positiveNormalizedValue.z()) / 2.0f, positiveNormalizedValue.w(), 1.0f);
415	else
416		DE_ASSERT(DE_FALSE);
417
418	return tcu::Vec4(0.0f, 0.0f, 0.0f, 0.0f);
419}
420
421bool AttributeCase::verifyUnicoloredBuffer (const tcu::Surface& scene, const tcu::Vec4& refValue)
422{
423	tcu::Surface	errorMask		(RENDER_SIZE, RENDER_SIZE);
424	const tcu::RGBA	refColor		(refValue);
425	const int		resultThreshold	= 2;
426	const tcu::RGBA	colorThreshold	= m_context.getRenderTarget().getPixelFormat().getColorThreshold() * resultThreshold;
427	bool			error			= false;
428
429	tcu::RGBA		exampleColor;
430	tcu::IVec2		examplePos;
431
432	tcu::clear(errorMask.getAccess(), tcu::RGBA::green().toIVec());
433
434	m_testCtx.getLog() << tcu::TestLog::Message << "Verifying rendered image. Expecting color " << refColor << ", threshold " << colorThreshold << tcu::TestLog::EndMessage;
435
436	for (int y = 0; y < RENDER_SIZE; ++y)
437	for (int x = 0; x < RENDER_SIZE; ++x)
438	{
439		const tcu::RGBA color = scene.getPixel(x, y);
440
441		if (de::abs(color.getRed()   - refColor.getRed())   > colorThreshold.getRed()   ||
442			de::abs(color.getGreen() - refColor.getGreen()) > colorThreshold.getGreen() ||
443			de::abs(color.getBlue()  - refColor.getBlue())  > colorThreshold.getBlue())
444		{
445			// first error
446			if (!error)
447			{
448				exampleColor = color;
449				examplePos = tcu::IVec2(x, y);
450			}
451
452			error = true;
453			errorMask.setPixel(x, y, tcu::RGBA::red());
454		}
455	}
456
457	if (!error)
458		m_testCtx.getLog() << tcu::TestLog::Message << "Rendered image is valid." << tcu::TestLog::EndMessage;
459	else
460	{
461		m_testCtx.getLog()	<< tcu::TestLog::Message
462							<< "Found invalid pixel(s).\n"
463							<< "Pixel at (" << examplePos.x() << ", " << examplePos.y() << ") color: " << exampleColor
464							<< tcu::TestLog::EndMessage
465							<< tcu::TestLog::ImageSet("Result", "Render result")
466							<< tcu::TestLog::Image("Result", "Result", scene)
467							<< tcu::TestLog::Image("ErrorMask", "Error Mask", errorMask)
468							<< tcu::TestLog::EndImageSet;
469	}
470
471	return !error;
472}
473
474} // anonymous
475
476DefaultVertexAttributeTests::DefaultVertexAttributeTests (Context& context)
477	: TestCaseGroup(context, "default_vertex_attrib", "Test default vertex attributes")
478{
479}
480
481DefaultVertexAttributeTests::~DefaultVertexAttributeTests (void)
482{
483}
484
485void DefaultVertexAttributeTests::init (void)
486{
487	struct Target
488	{
489		const char*		name;
490		glu::DataType	dataType;
491		bool			reducedTestSets;	// !< use reduced coverage
492	};
493
494	static const Target floatTargets[] =
495	{
496		{ "float",	glu::TYPE_FLOAT,		false	},
497		{ "vec2",	glu::TYPE_FLOAT_VEC2,	true	},
498		{ "vec3",	glu::TYPE_FLOAT_VEC3,	true	},
499		{ "vec4",	glu::TYPE_FLOAT_VEC4,	false	},
500		{ "mat2",	glu::TYPE_FLOAT_MAT2,	true	},
501		{ "mat3",	glu::TYPE_FLOAT_MAT3,	true	},
502		{ "mat4",	glu::TYPE_FLOAT_MAT4,	false	},
503	};
504
505	// float targets
506
507	for (int targetNdx = 0; targetNdx < DE_LENGTH_OF_ARRAY(floatTargets); ++targetNdx)
508	{
509		tcu::TestCaseGroup* const	group	= new tcu::TestCaseGroup(m_testCtx, floatTargets[targetNdx].name, (std::string("test with ") + floatTargets[targetNdx].name).c_str());
510		const bool					fullSet	= !floatTargets[targetNdx].reducedTestSets;
511
512#define ADD_CASE(X) group->addChild(AttributeCase::create<X>(m_context, floatTargets[targetNdx].dataType))
513#define ADD_REDUCED_CASE(X)	if (fullSet) ADD_CASE(X)
514
515		ADD_CASE		(LoaderVertexAttrib1f);
516		ADD_REDUCED_CASE(LoaderVertexAttrib2f);
517		ADD_REDUCED_CASE(LoaderVertexAttrib3f);
518		ADD_CASE		(LoaderVertexAttrib4f);
519
520		ADD_CASE		(LoaderVertexAttrib1fv);
521		ADD_REDUCED_CASE(LoaderVertexAttrib2fv);
522		ADD_REDUCED_CASE(LoaderVertexAttrib3fv);
523		ADD_CASE		(LoaderVertexAttrib4fv);
524
525#undef ADD_CASE
526#undef ADD_REDUCED_CASE
527
528		addChild(group);
529	}
530}
531
532} // Functional
533} // gles2
534} // deqp
535