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 Randomized per-fragment operation tests.
22 *//*--------------------------------------------------------------------*/
23
24#include "es2fRandomFragmentOpTests.hpp"
25#include "glsFragmentOpUtil.hpp"
26#include "glsInteractionTestUtil.hpp"
27#include "tcuRenderTarget.hpp"
28#include "tcuTestLog.hpp"
29#include "tcuSurface.hpp"
30#include "tcuCommandLine.hpp"
31#include "tcuImageCompare.hpp"
32#include "tcuVectorUtil.hpp"
33#include "tcuTextureUtil.hpp"
34#include "gluPixelTransfer.hpp"
35#include "gluCallLogWrapper.hpp"
36#include "gluRenderContext.hpp"
37#include "deStringUtil.hpp"
38#include "deRandom.hpp"
39#include "deMath.h"
40#include "glwFunctions.hpp"
41#include "glwEnums.hpp"
42#include "rrFragmentOperations.hpp"
43#include "sglrReferenceUtils.hpp"
44
45#include <algorithm>
46
47namespace deqp
48{
49namespace gles2
50{
51namespace Functional
52{
53
54using std::vector;
55using tcu::TestLog;
56using tcu::Vec2;
57using tcu::Vec4;
58using tcu::IVec2;
59using tcu::BVec4;
60
61enum
62{
63	VIEWPORT_WIDTH				= 64,
64	VIEWPORT_HEIGHT				= 64,
65	NUM_CALLS_PER_ITERATION		= 3,
66	NUM_ITERATIONS_PER_CASE		= 10
67};
68
69static const tcu::Vec4		CLEAR_COLOR			(0.25f, 0.5f, 0.75f, 1.0f);
70static const float			CLEAR_DEPTH			= 1.0f;
71static const int			CLEAR_STENCIL		= 0;
72static const bool			ENABLE_CALL_LOG		= true;
73
74using namespace gls::FragmentOpUtil;
75using namespace gls::InteractionTestUtil;
76
77void translateStencilState (const StencilState& src, rr::StencilState& dst)
78{
79	dst.func		= sglr::rr_util::mapGLTestFunc(src.function);
80	dst.ref			= src.reference;
81	dst.compMask	= src.compareMask;
82	dst.sFail		= sglr::rr_util::mapGLStencilOp(src.stencilFailOp);
83	dst.dpFail		= sglr::rr_util::mapGLStencilOp(src.depthFailOp);
84	dst.dpPass		= sglr::rr_util::mapGLStencilOp(src.depthPassOp);
85	dst.writeMask	= src.writeMask;
86}
87
88void translateBlendState (const BlendState& src, rr::BlendState& dst)
89{
90	dst.equation	= sglr::rr_util::mapGLBlendEquation(src.equation);
91	dst.srcFunc		= sglr::rr_util::mapGLBlendFunc(src.srcFunc);
92	dst.dstFunc		= sglr::rr_util::mapGLBlendFunc(src.dstFunc);
93}
94
95void translateState (const RenderState& src, rr::FragmentOperationState& dst, const tcu::RenderTarget& renderTarget)
96{
97	bool hasDepth		= renderTarget.getDepthBits() > 0;
98	bool hasStencil		= renderTarget.getStencilBits() > 0;
99
100	dst.scissorTestEnabled		= src.scissorTestEnabled;
101	dst.scissorRectangle		= src.scissorRectangle;
102	dst.stencilTestEnabled		= hasStencil && src.stencilTestEnabled;
103	dst.depthTestEnabled		= hasDepth && src.depthTestEnabled;
104	dst.blendMode				= src.blendEnabled ? rr::BLENDMODE_STANDARD : rr::BLENDMODE_NONE;
105	dst.numStencilBits			= renderTarget.getStencilBits();
106
107	dst.colorMask = src.colorMask;
108
109	if (dst.depthTestEnabled)
110	{
111		dst.depthFunc	= sglr::rr_util::mapGLTestFunc(src.depthFunc);
112		dst.depthMask	= src.depthWriteMask;
113	}
114
115	if (dst.stencilTestEnabled)
116	{
117		translateStencilState(src.stencil[rr::FACETYPE_BACK],	dst.stencilStates[rr::FACETYPE_BACK]);
118		translateStencilState(src.stencil[rr::FACETYPE_FRONT],	dst.stencilStates[rr::FACETYPE_FRONT]);
119	}
120
121	if (src.blendEnabled)
122	{
123		translateBlendState(src.blendRGBState, dst.blendRGBState);
124		translateBlendState(src.blendAState, dst.blendAState);
125		dst.blendColor = tcu::clamp(src.blendColor, Vec4(0.0f), Vec4(1.0f));
126	}
127}
128
129static void renderQuad (const glw::Functions& gl, gls::FragmentOpUtil::QuadRenderer& renderer, const gls::FragmentOpUtil::IntegerQuad& quad, int baseX, int baseY)
130{
131	gls::FragmentOpUtil::Quad translated;
132
133	std::copy(DE_ARRAY_BEGIN(quad.color), DE_ARRAY_END(quad.color), DE_ARRAY_BEGIN(translated.color));
134
135	bool	flipX		= quad.posB.x() < quad.posA.x();
136	bool	flipY		= quad.posB.y() < quad.posA.y();
137	int		viewportX	= de::min(quad.posA.x(), quad.posB.x());
138	int		viewportY	= de::min(quad.posA.y(), quad.posB.y());
139	int		viewportW	= de::abs(quad.posA.x()-quad.posB.x())+1;
140	int		viewportH	= de::abs(quad.posA.y()-quad.posB.y())+1;
141
142	translated.posA = Vec2(flipX ? 1.0f : -1.0f, flipY ? 1.0f : -1.0f);
143	translated.posB = Vec2(flipX ? -1.0f : 1.0f, flipY ? -1.0f : 1.0f);
144
145	// \todo [2012-12-18 pyry] Pass in DepthRange parameters.
146	for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(quad.depth); ndx++)
147		translated.depth[ndx] = quad.depth[ndx]*2.0f - 1.0f;
148
149	gl.viewport(baseX+viewportX, baseY+viewportY, viewportW, viewportH);
150	renderer.render(translated);
151}
152
153static void setGLState (glu::CallLogWrapper& wrapper, const RenderState& state, int viewportX, int viewportY)
154{
155	if (state.scissorTestEnabled)
156	{
157		wrapper.glEnable(GL_SCISSOR_TEST);
158		wrapper.glScissor(viewportX+state.scissorRectangle.left, viewportY+state.scissorRectangle.bottom,
159						  state.scissorRectangle.width, state.scissorRectangle.height);
160	}
161	else
162		wrapper.glDisable(GL_SCISSOR_TEST);
163
164	if (state.stencilTestEnabled)
165	{
166		wrapper.glEnable(GL_STENCIL_TEST);
167
168		for (int face = 0; face < rr::FACETYPE_LAST; face++)
169		{
170			deUint32				glFace	= face == rr::FACETYPE_BACK ? GL_BACK : GL_FRONT;
171			const StencilState&		sParams	= state.stencil[face];
172
173			wrapper.glStencilFuncSeparate(glFace, sParams.function, sParams.reference, sParams.compareMask);
174			wrapper.glStencilOpSeparate(glFace, sParams.stencilFailOp, sParams.depthFailOp, sParams.depthPassOp);
175			wrapper.glStencilMaskSeparate(glFace, sParams.writeMask);
176		}
177	}
178	else
179		wrapper.glDisable(GL_STENCIL_TEST);
180
181	if (state.depthTestEnabled)
182	{
183		wrapper.glEnable(GL_DEPTH_TEST);
184		wrapper.glDepthFunc(state.depthFunc);
185		wrapper.glDepthMask(state.depthWriteMask ? GL_TRUE : GL_FALSE);
186	}
187	else
188		wrapper.glDisable(GL_DEPTH_TEST);
189
190	if (state.blendEnabled)
191	{
192		wrapper.glEnable(GL_BLEND);
193		wrapper.glBlendEquationSeparate(state.blendRGBState.equation, state.blendAState.equation);
194		wrapper.glBlendFuncSeparate(state.blendRGBState.srcFunc, state.blendRGBState.dstFunc, state.blendAState.srcFunc, state.blendAState.dstFunc);
195		wrapper.glBlendColor(state.blendColor.x(), state.blendColor.y(), state.blendColor.z(), state.blendColor.w());
196	}
197	else
198		wrapper.glDisable(GL_BLEND);
199
200	if (state.ditherEnabled)
201		wrapper.glEnable(GL_DITHER);
202	else
203		wrapper.glDisable(GL_DITHER);
204
205	wrapper.glColorMask(state.colorMask[0] ? GL_TRUE : GL_FALSE,
206						state.colorMask[1] ? GL_TRUE : GL_FALSE,
207						state.colorMask[2] ? GL_TRUE : GL_FALSE,
208						state.colorMask[3] ? GL_TRUE : GL_FALSE);
209}
210
211class RandomFragmentOpCase : public TestCase
212{
213public:
214						RandomFragmentOpCase		(Context& context, const char* name, const char* desc, deUint32 seed);
215						~RandomFragmentOpCase		(void);
216
217	void				init						(void);
218	void				deinit						(void);
219	IterateResult		iterate						(void);
220
221private:
222	tcu::UVec4			getCompareThreshold			(void) const;
223
224	deUint32										m_seed;
225
226	glu::CallLogWrapper						m_callLogWrapper;
227
228	gls::FragmentOpUtil::QuadRenderer*				m_renderer;
229	tcu::TextureLevel*								m_refColorBuffer;
230	tcu::TextureLevel*								m_refDepthBuffer;
231	tcu::TextureLevel*								m_refStencilBuffer;
232	gls::FragmentOpUtil::ReferenceQuadRenderer*		m_refRenderer;
233
234	int												m_iterNdx;
235};
236
237RandomFragmentOpCase::RandomFragmentOpCase (Context& context, const char* name, const char* desc, deUint32 seed)
238	: TestCase				(context, name, desc)
239	, m_seed				(seed)
240	, m_callLogWrapper		(context.getRenderContext().getFunctions(), context.getTestContext().getLog())
241	, m_renderer			(DE_NULL)
242	, m_refColorBuffer		(DE_NULL)
243	, m_refDepthBuffer		(DE_NULL)
244	, m_refStencilBuffer	(DE_NULL)
245	, m_refRenderer			(DE_NULL)
246	, m_iterNdx				(0)
247{
248	m_callLogWrapper.enableLogging(ENABLE_CALL_LOG);
249}
250
251RandomFragmentOpCase::~RandomFragmentOpCase (void)
252{
253	delete m_renderer;
254	delete m_refColorBuffer;
255	delete m_refDepthBuffer;
256	delete m_refStencilBuffer;
257	delete m_refRenderer;
258}
259
260void RandomFragmentOpCase::init (void)
261{
262	DE_ASSERT(!m_renderer && !m_refColorBuffer && !m_refDepthBuffer && !m_refStencilBuffer && !m_refRenderer);
263
264	int		width	= de::min<int>(m_context.getRenderTarget().getWidth(), VIEWPORT_WIDTH);
265	int		height	= de::min<int>(m_context.getRenderTarget().getHeight(), VIEWPORT_HEIGHT);
266	bool	useRGB	= m_context.getRenderTarget().getPixelFormat().alphaBits == 0;
267
268	m_renderer			= new gls::FragmentOpUtil::QuadRenderer(m_context.getRenderContext(), glu::GLSL_VERSION_100_ES);
269	m_refColorBuffer	= new tcu::TextureLevel(tcu::TextureFormat(useRGB ? tcu::TextureFormat::RGB : tcu::TextureFormat::RGBA, tcu::TextureFormat::UNORM_INT8), width, height);
270	m_refDepthBuffer	= new tcu::TextureLevel(tcu::TextureFormat(tcu::TextureFormat::D, tcu::TextureFormat::FLOAT),			width, height);
271	m_refStencilBuffer	= new tcu::TextureLevel(tcu::TextureFormat(tcu::TextureFormat::S, tcu::TextureFormat::UNSIGNED_INT32),	width, height);
272	m_refRenderer		= new gls::FragmentOpUtil::ReferenceQuadRenderer();
273	m_iterNdx			= 0;
274
275	m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
276}
277
278void RandomFragmentOpCase::deinit (void)
279{
280	delete m_renderer;
281	delete m_refColorBuffer;
282	delete m_refDepthBuffer;
283	delete m_refStencilBuffer;
284	delete m_refRenderer;
285
286	m_renderer			= DE_NULL;
287	m_refColorBuffer	= DE_NULL;
288	m_refDepthBuffer	= DE_NULL;
289	m_refStencilBuffer	= DE_NULL;
290	m_refRenderer		= DE_NULL;
291}
292
293RandomFragmentOpCase::IterateResult RandomFragmentOpCase::iterate (void)
294{
295	const glw::Functions&	gl				= m_context.getRenderContext().getFunctions();
296	const deUint32			iterSeed		= deUint32Hash(m_seed) ^ deInt32Hash(m_iterNdx) ^ deInt32Hash(m_testCtx.getCommandLine().getBaseSeed());
297	de::Random				rnd				(iterSeed);
298
299	const int				width			= m_refColorBuffer->getWidth();
300	const int				height			= m_refColorBuffer->getHeight();
301	const int				viewportX		= rnd.getInt(0, m_context.getRenderTarget().getWidth()-width);
302	const int				viewportY		= rnd.getInt(0, m_context.getRenderTarget().getHeight()-height);
303
304	tcu::Surface			renderedImg		(width, height);
305
306	const Vec4				clearColor		= CLEAR_COLOR;
307	const float				clearDepth		= CLEAR_DEPTH;
308	const int				clearStencil	= CLEAR_STENCIL;
309
310	bool					gotError		= false;
311
312	const tcu::ScopedLogSection	iterSection	(m_testCtx.getLog(), std::string("Iteration") + de::toString(m_iterNdx), std::string("Iteration ") + de::toString(m_iterNdx));
313
314	// Compute randomized rendering commands.
315	vector<RenderCommand> commands;
316	computeRandomRenderCommands(rnd, glu::ApiType::es(2,0), NUM_CALLS_PER_ITERATION, width, height, commands);
317
318	// Reset default fragment state.
319	gl.disable(GL_SCISSOR_TEST);
320	gl.colorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
321	gl.depthMask(GL_TRUE);
322	gl.stencilMask(~0u);
323
324	// Render using GL.
325	m_callLogWrapper.glClearColor(clearColor.x(), clearColor.y(), clearColor.z(), clearColor.w());
326	m_callLogWrapper.glClearDepthf(clearDepth);
327	m_callLogWrapper.glClearStencil(clearStencil);
328	m_callLogWrapper.glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
329	m_callLogWrapper.glViewport(viewportX, viewportY, width, height);
330
331	for (vector<RenderCommand>::const_iterator cmd = commands.begin(); cmd != commands.end(); cmd++)
332	{
333		setGLState(m_callLogWrapper, cmd->state, viewportX, viewportY);
334
335		if (ENABLE_CALL_LOG)
336			m_testCtx.getLog() << TestLog::Message << "// Quad: " << cmd->quad.posA << " -> " << cmd->quad.posB
337												   << ", color: [" << cmd->quad.color[0] << ", " << cmd->quad.color[1] << ", " << cmd->quad.color[2] << ", " << cmd->quad.color[3] << "]"
338												   << ", depth: [" << cmd->quad.depth[0] << ", " << cmd->quad.depth[1] << ", " << cmd->quad.depth[2] << ", " << cmd->quad.depth[3] << "]"
339								<< TestLog::EndMessage;
340
341		renderQuad(gl, *m_renderer, cmd->quad, viewportX, viewportY);
342	}
343
344	// Check error.
345	if (m_callLogWrapper.glGetError() != GL_NO_ERROR)
346		gotError = true;
347
348	gl.flush();
349
350	// Render reference while GPU is doing work.
351	tcu::clear			(m_refColorBuffer->getAccess(),		clearColor);
352	tcu::clearDepth		(m_refDepthBuffer->getAccess(),		clearDepth);
353	tcu::clearStencil	(m_refStencilBuffer->getAccess(),	clearStencil);
354
355	for (vector<RenderCommand>::const_iterator cmd = commands.begin(); cmd != commands.end(); cmd++)
356	{
357		rr::FragmentOperationState refState;
358		translateState(cmd->state, refState, m_context.getRenderTarget());
359		m_refRenderer->render(gls::FragmentOpUtil::getMultisampleAccess(m_refColorBuffer->getAccess()),
360							  gls::FragmentOpUtil::getMultisampleAccess(m_refDepthBuffer->getAccess()),
361							  gls::FragmentOpUtil::getMultisampleAccess(m_refStencilBuffer->getAccess()),
362							  cmd->quad, refState);
363	}
364
365	// Read rendered image.
366	glu::readPixels(m_context.getRenderContext(), viewportX, viewportY, renderedImg.getAccess());
367
368	m_iterNdx += 1;
369
370	// Compare to reference.
371	bool	isLastIter	= m_iterNdx >= NUM_ITERATIONS_PER_CASE;
372	bool	compareOk	= tcu::intThresholdCompare(m_testCtx.getLog(), "CompareResult", "Image Comparison Result", m_refColorBuffer->getAccess(), renderedImg.getAccess(), getCompareThreshold(),
373													 tcu::COMPARE_LOG_RESULT);
374
375	m_testCtx.getLog() << TestLog::Message << (compareOk ? "  Passed." : "  FAILED!") << TestLog::EndMessage;
376
377	if (!compareOk)
378		m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
379	else if (gotError)
380		m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "GL error");
381
382	if (compareOk && !gotError && !isLastIter)
383		return CONTINUE;
384	else
385		return STOP;
386}
387
388tcu::UVec4 RandomFragmentOpCase::getCompareThreshold (void) const
389{
390	tcu::PixelFormat format = m_context.getRenderTarget().getPixelFormat();
391
392	if (format == tcu::PixelFormat(8, 8, 8, 8) || format == tcu::PixelFormat(8, 8, 8, 0))
393		return format.getColorThreshold().toIVec().asUint() + tcu::UVec4(2); // Default threshold.
394	else
395		return format.getColorThreshold().toIVec().asUint()
396			   * tcu::UVec4(5) + tcu::UVec4(2); // \note Non-scientific ad hoc formula. Need big threshold when few color bits; especially multiple blendings bring extra inaccuracy.
397}
398
399RandomFragmentOpTests::RandomFragmentOpTests (Context& context)
400	: TestCaseGroup(context, "random", "Randomized Per-Fragment Operation Tests")
401{
402}
403
404RandomFragmentOpTests::~RandomFragmentOpTests (void)
405{
406}
407
408void RandomFragmentOpTests::init (void)
409{
410	for (int ndx = 0; ndx < 100; ndx++)
411		addChild(new RandomFragmentOpCase(m_context, de::toString(ndx).c_str(), "", (deUint32)(ndx*NUM_ITERATIONS_PER_CASE)));
412}
413
414} // Functional
415} // gles2
416} // deqp
417