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1 /*-------------------------------------------------------------------------
2  * drawElements Quality Program OpenGL (ES) Module
3  * -----------------------------------------------
4  *
5  * Copyright 2014 The Android Open Source Project
6  *
7  * Licensed under the Apache License, Version 2.0 (the "License");
8  * you may not use this file except in compliance with the License.
9  * You may obtain a copy of the License at
10  *
11  *      http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing, software
14  * distributed under the License is distributed on an "AS IS" BASIS,
15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16  * See the License for the specific language governing permissions and
17  * limitations under the License.
18  *
19  *//*!
20  * \file
21  * \brief Framebuffer completeness tests.
22  *//*--------------------------------------------------------------------*/
23 
24 #include "glsFboCompletenessTests.hpp"
25 
26 #include "gluStrUtil.hpp"
27 #include "gluObjectWrapper.hpp"
28 #include "deStringUtil.hpp"
29 
30 #include <cctype>
31 #include <iterator>
32 #include <algorithm>
33 
34 using namespace glw;
35 using glu::RenderContext;
36 using glu::getFramebufferStatusName;
37 using glu::getPixelFormatName;
38 using glu::getTypeName;
39 using glu::getErrorName;
40 using glu::Framebuffer;
41 using tcu::TestCase;
42 using tcu::TestCaseGroup;
43 using tcu::TestLog;
44 using tcu::MessageBuilder;
45 using tcu::TestNode;
46 using std::string;
47 using de::toString;
48 using namespace deqp::gls::FboUtil;
49 using namespace deqp::gls::FboUtil::config;
50 typedef TestCase::IterateResult IterateResult;
51 
52 namespace deqp
53 {
54 namespace gls
55 {
56 namespace fboc
57 {
58 
59 namespace details
60 {
61 // \todo [2013-12-04 lauri] Place in deStrUtil.hpp?
62 
toLower(const string & str)63 string toLower (const string& str)
64 {
65 	string ret;
66 	std::transform(str.begin(), str.end(), std::inserter(ret, ret.begin()), ::tolower);
67 	return ret;
68 }
69 
70 // The following extensions are applicable both to ES2 and ES3.
71 
72 // GL_OES_depth_texture
73 static const FormatKey s_oesDepthTextureFormats[] =
74 {
75 	GLS_UNSIZED_FORMATKEY(GL_DEPTH_COMPONENT,	GL_UNSIGNED_SHORT),
76 	GLS_UNSIZED_FORMATKEY(GL_DEPTH_COMPONENT,	GL_UNSIGNED_INT),
77 };
78 
79 // GL_OES_packed_depth_stencil
80 static const FormatKey s_oesPackedDepthStencilSizedFormats[] =
81 {
82 	GL_DEPTH24_STENCIL8,
83 };
84 
85 static const FormatKey s_oesPackedDepthStencilTexFormats[] =
86 {
87 	GLS_UNSIZED_FORMATKEY(GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8),
88 };
89 
90 // GL_OES_required_internalformat
91 static const FormatKey s_oesRequiredInternalFormatColorFormats[] =
92 {
93 	// Same as ES2 RBO formats, plus RGBA8 (even without OES_rgb8_rgba8)
94 	GL_RGB5_A1, GL_RGBA8, GL_RGBA4, GL_RGB565
95 };
96 
97 static const FormatKey s_oesRequiredInternalFormatDepthFormats[] =
98 {
99 	GL_DEPTH_COMPONENT16,
100 };
101 
102 // GL_EXT_color_buffer_half_float
103 static const FormatKey s_extColorBufferHalfFloatFormats[] =
104 {
105 	GL_RGBA16F, GL_RGB16F, GL_RG16F, GL_R16F,
106 };
107 
108 static const FormatKey s_oesDepth24SizedFormats[] =
109 {
110 	GL_DEPTH_COMPONENT24
111 };
112 
113 static const FormatKey s_oesDepth32SizedFormats[] =
114 {
115 	GL_DEPTH_COMPONENT32
116 };
117 
118 static const FormatKey s_oesRgb8Rgba8RboFormats[] =
119 {
120 	GL_RGB8,
121 	GL_RGBA8,
122 };
123 
124 static const FormatKey s_oesRequiredInternalFormatRgb8ColorFormat[] =
125 {
126 	GL_RGB8,
127 };
128 
129 static const FormatKey s_extTextureType2101010RevFormats[] =
130 {
131 	GLS_UNSIZED_FORMATKEY(GL_RGBA,	GL_UNSIGNED_INT_2_10_10_10_REV),
132 	GLS_UNSIZED_FORMATKEY(GL_RGB,	GL_UNSIGNED_INT_2_10_10_10_REV),
133 };
134 
135 static const FormatKey s_oesRequiredInternalFormat10bitColorFormats[] =
136 {
137 	GL_RGB10_A2, GL_RGB10,
138 };
139 
140 static const FormatKey s_extTextureRgRboFormats[] =
141 {
142 	GL_R8, GL_RG8,
143 };
144 
145 static const FormatKey s_extTextureRgTexFormats[] =
146 {
147 	GLS_UNSIZED_FORMATKEY(GL_RED,	GL_UNSIGNED_BYTE),
148 	GLS_UNSIZED_FORMATKEY(GL_RG,	GL_UNSIGNED_BYTE),
149 };
150 
151 static const FormatKey s_extTextureRgFloatTexFormats[] =
152 {
153 	GLS_UNSIZED_FORMATKEY(GL_RED,	GL_FLOAT),
154 	GLS_UNSIZED_FORMATKEY(GL_RG,	GL_FLOAT),
155 };
156 
157 static const FormatKey s_extTextureRgHalfFloatTexFormats[] =
158 {
159 	GLS_UNSIZED_FORMATKEY(GL_RED,	GL_HALF_FLOAT_OES),
160 	GLS_UNSIZED_FORMATKEY(GL_RG,	GL_HALF_FLOAT_OES),
161 };
162 
163 static const FormatKey s_nvPackedFloatRboFormats[] =
164 {
165 	GL_R11F_G11F_B10F,
166 };
167 
168 static const FormatKey s_nvPackedFloatTexFormats[] =
169 {
170 	GLS_UNSIZED_FORMATKEY(GL_RGB,	GL_UNSIGNED_INT_10F_11F_11F_REV),
171 };
172 
173 static const FormatKey s_extSrgbRboFormats[] =
174 {
175 	GL_SRGB8_ALPHA8,
176 };
177 
178 static const FormatKey s_extSrgbRenderableTexFormats[] =
179 {
180 	GLS_UNSIZED_FORMATKEY(GL_SRGB_ALPHA,	GL_UNSIGNED_BYTE),
181 };
182 
183 static const FormatKey s_extSrgbNonRenderableTexFormats[] =
184 {
185 	GLS_UNSIZED_FORMATKEY(GL_SRGB,			GL_UNSIGNED_BYTE),
186 	GL_SRGB8,
187 };
188 
189 static const FormatKey s_nvSrgbFormatsFormats[] =
190 {
191 	GL_SRGB8,
192 };
193 
194 static const FormatKey s_oesRgb8Rgba8TexFormats[] =
195 {
196 	GLS_UNSIZED_FORMATKEY(GL_RGB,		GL_UNSIGNED_BYTE),
197 	GLS_UNSIZED_FORMATKEY(GL_RGBA,		GL_UNSIGNED_BYTE),
198 };
199 
200 static const FormatExtEntry s_esExtFormats[] =
201 {
202 	{
203 		"GL_OES_depth_texture",
204 		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | TEXTURE_VALID,
205 		GLS_ARRAY_RANGE(s_oesDepthTextureFormats),
206 	},
207 	{
208 		"GL_OES_packed_depth_stencil",
209 		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | STENCIL_RENDERABLE | RENDERBUFFER_VALID,
210 		GLS_ARRAY_RANGE(s_oesPackedDepthStencilSizedFormats)
211 	},
212 	{
213 		"GL_OES_packed_depth_stencil GL_OES_required_internalformat",
214 		TEXTURE_VALID,
215 		GLS_ARRAY_RANGE(s_oesPackedDepthStencilSizedFormats)
216 	},
217 	{
218 		"GL_OES_packed_depth_stencil",
219 		DEPTH_RENDERABLE | STENCIL_RENDERABLE | TEXTURE_VALID,
220 		GLS_ARRAY_RANGE(s_oesPackedDepthStencilTexFormats)
221 	},
222 	// \todo [2013-12-10 lauri] Find out if OES_texture_half_float is really a
223 	// requirement on ES3 also. Or is color_buffer_half_float applicatble at
224 	// all on ES3, since there's also EXT_color_buffer_float?
225 	{
226 		"GL_OES_texture_half_float GL_EXT_color_buffer_half_float",
227 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
228 		GLS_ARRAY_RANGE(s_extColorBufferHalfFloatFormats)
229 	},
230 
231 	// OES_required_internalformat doesn't actually specify that these are renderable,
232 	// since it was written against ES 1.1.
233 	{
234 		"GL_OES_required_internalformat",
235 		 // Allow but don't require RGBA8 to be color-renderable if
236 		 // OES_rgb8_rgba8 is not present.
237 		COLOR_RENDERABLE | TEXTURE_VALID,
238 		GLS_ARRAY_RANGE(s_oesRequiredInternalFormatColorFormats)
239 	},
240 	{
241 		"GL_OES_required_internalformat",
242 		DEPTH_RENDERABLE | TEXTURE_VALID,
243 		GLS_ARRAY_RANGE(s_oesRequiredInternalFormatDepthFormats)
244 	},
245 	{
246 		"GL_EXT_texture_rg",
247 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
248 		GLS_ARRAY_RANGE(s_extTextureRgRboFormats)
249 	},
250 	// These are not specified to be color-renderable, but the wording is
251 	// exactly as ambiguous as the wording in the ES2 spec.
252 	{
253 		"GL_EXT_texture_rg",
254 		COLOR_RENDERABLE | TEXTURE_VALID,
255 		GLS_ARRAY_RANGE(s_extTextureRgTexFormats)
256 	},
257 	{
258 		"GL_EXT_texture_rg GL_OES_texture_float",
259 		COLOR_RENDERABLE | TEXTURE_VALID,
260 		GLS_ARRAY_RANGE(s_extTextureRgFloatTexFormats)
261 	},
262 	{
263 		"GL_EXT_texture_rg GL_OES_texture_half_float",
264 		COLOR_RENDERABLE | TEXTURE_VALID,
265 		GLS_ARRAY_RANGE(s_extTextureRgHalfFloatTexFormats)
266 	},
267 
268 	{
269 		"GL_NV_packed_float",
270 		COLOR_RENDERABLE | TEXTURE_VALID,
271 		GLS_ARRAY_RANGE(s_nvPackedFloatTexFormats)
272 	},
273 	{
274 		"GL_NV_packed_float GL_EXT_color_buffer_half_float",
275 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
276 		GLS_ARRAY_RANGE(s_nvPackedFloatRboFormats)
277 	},
278 
279 	// Some Tegra drivers report GL_EXT_packed_float even for ES. Treat it as
280 	// a synonym for the NV_ version.
281 	{
282 		"GL_EXT_packed_float",
283 		COLOR_RENDERABLE | TEXTURE_VALID,
284 		GLS_ARRAY_RANGE(s_nvPackedFloatTexFormats)
285 	},
286 	{
287 		"GL_EXT_packed_float GL_EXT_color_buffer_half_float",
288 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
289 		GLS_ARRAY_RANGE(s_nvPackedFloatRboFormats)
290 	},
291 
292 	{
293 		"GL_EXT_sRGB",
294 		COLOR_RENDERABLE | TEXTURE_VALID,
295 		GLS_ARRAY_RANGE(s_extSrgbRenderableTexFormats)
296 	},
297 	{
298 		"GL_EXT_sRGB",
299 		TEXTURE_VALID,
300 		GLS_ARRAY_RANGE(s_extSrgbNonRenderableTexFormats)
301 	},
302 	{
303 		"GL_EXT_sRGB",
304 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
305 		GLS_ARRAY_RANGE(s_extSrgbRboFormats)
306 	},
307 	{
308 		"GL_NV_sRGB_formats",
309 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | TEXTURE_VALID | RENDERBUFFER_VALID,
310 		GLS_ARRAY_RANGE(s_nvSrgbFormatsFormats)
311 	},
312 
313 	 // In Khronos bug 7333 discussion, the consensus is that these texture
314 	 // formats, at least, should be color-renderable. Still, that cannot be
315 	 // found in any extension specs, so only allow it, not require it.
316 	{
317 		"GL_OES_rgb8_rgba8",
318 		COLOR_RENDERABLE | TEXTURE_VALID,
319 		GLS_ARRAY_RANGE(s_oesRgb8Rgba8TexFormats)
320 	},
321 	{
322 		"GL_OES_rgb8_rgba8",
323 		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
324 		GLS_ARRAY_RANGE(s_oesRgb8Rgba8RboFormats)
325 	},
326 	{
327 		"GL_OES_rgb8_rgba8 GL_OES_required_internalformat",
328 		TEXTURE_VALID,
329 		GLS_ARRAY_RANGE(s_oesRequiredInternalFormatRgb8ColorFormat)
330 	},
331 
332 	// The depth-renderability of the depth RBO formats is not explicitly
333 	// spelled out, but all renderbuffer formats are meant to be renderable.
334 	{
335 		"GL_OES_depth24",
336 		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | RENDERBUFFER_VALID,
337 		GLS_ARRAY_RANGE(s_oesDepth24SizedFormats)
338 	},
339 	{
340 		"GL_OES_depth24 GL_OES_required_internalformat GL_OES_depth_texture",
341 		TEXTURE_VALID,
342 		GLS_ARRAY_RANGE(s_oesDepth24SizedFormats)
343 	},
344 
345 	{
346 		"GL_OES_depth32",
347 		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | RENDERBUFFER_VALID,
348 		GLS_ARRAY_RANGE(s_oesDepth32SizedFormats)
349 	},
350 	{
351 		"GL_OES_depth32 GL_OES_required_internalformat GL_OES_depth_texture",
352 		TEXTURE_VALID,
353 		GLS_ARRAY_RANGE(s_oesDepth32SizedFormats)
354 	},
355 
356 	{
357 		"GL_EXT_texture_type_2_10_10_10_REV",
358 		TEXTURE_VALID, // explicitly unrenderable
359 		GLS_ARRAY_RANGE(s_extTextureType2101010RevFormats)
360 	},
361 	{
362 		"GL_EXT_texture_type_2_10_10_10_REV GL_OES_required_internalformat",
363 		TEXTURE_VALID, // explicitly unrenderable
364 		GLS_ARRAY_RANGE(s_oesRequiredInternalFormat10bitColorFormats)
365 	},
366 };
367 
Context(TestContext & testCtx,RenderContext & renderCtx,CheckerFactory & factory)368 Context::Context (TestContext& testCtx,
369 				  RenderContext& renderCtx,
370 				  CheckerFactory& factory)
371 	: m_testCtx				(testCtx)
372 	, m_renderCtx			(renderCtx)
373 	, m_verifier			(m_ctxFormats, factory)
374 	, m_haveMultiColorAtts	(false)
375 {
376 	FormatExtEntries extRange = GLS_ARRAY_RANGE(s_esExtFormats);
377 	addExtFormats(extRange);
378 }
379 
addFormats(FormatEntries fmtRange)380 void Context::addFormats (FormatEntries fmtRange)
381 {
382 	FboUtil::addFormats(m_minFormats, fmtRange);
383 	FboUtil::addFormats(m_ctxFormats, fmtRange);
384 	FboUtil::addFormats(m_maxFormats, fmtRange);
385 }
386 
addExtFormats(FormatExtEntries extRange)387 void Context::addExtFormats (FormatExtEntries extRange)
388 {
389 	FboUtil::addExtFormats(m_ctxFormats, extRange, &m_renderCtx);
390 	FboUtil::addExtFormats(m_maxFormats, extRange, DE_NULL);
391 }
392 
pass(void)393 void TestBase::pass (void)
394 {
395 	m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
396 }
397 
qualityWarning(const char * msg)398 void TestBase::qualityWarning (const char* msg)
399 {
400 	m_testCtx.setTestResult(QP_TEST_RESULT_QUALITY_WARNING, msg);
401 }
402 
fail(const char * msg)403 void TestBase::fail (const char* msg)
404 {
405 	m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, msg);
406 }
407 
statusName(GLenum status)408 static string statusName (GLenum status)
409 {
410 	const char* errorName = getErrorName(status);
411 	if (status != GL_NO_ERROR && errorName != DE_NULL)
412 		return string(errorName) + " (during FBO initialization)";
413 
414 	const char* fbStatusName = getFramebufferStatusName(status);
415 	if (fbStatusName != DE_NULL)
416 		return fbStatusName;
417 
418 	return "unknown value (" + toString(status) + ")";
419 }
420 
gl(const TestBase & test)421 const glw::Functions& gl (const TestBase& test)
422 {
423 	return test.getContext().getRenderContext().getFunctions();
424 }
425 
iterate(void)426 IterateResult TestBase::iterate (void)
427 {
428 	glu::Framebuffer fbo(m_ctx.getRenderContext());
429 	FboBuilder builder(*fbo, GL_FRAMEBUFFER, gl(*this));
430 	const IterateResult ret = build(builder);
431 	const StatusCodes statuses = m_ctx.getVerifier().validStatusCodes(builder);
432 
433 	GLenum glStatus = builder.getError();
434 	if (glStatus == GL_NO_ERROR)
435 		glStatus = gl(*this).checkFramebufferStatus(GL_FRAMEBUFFER);
436 
437 	// \todo [2013-12-04 lauri] Check if drawing operations succeed.
438 
439 	StatusCodes::const_iterator it = statuses.begin();
440 	GLenum err = *it++;
441 	logFramebufferConfig(builder, m_testCtx.getLog());
442 
443 	MessageBuilder msg(&m_testCtx.getLog());
444 
445 	msg << "Expected ";
446 	if (it != statuses.end())
447 	{
448 		msg << "one of ";
449 		while (it != statuses.end())
450 		{
451 			msg << statusName(err);
452 			err = *it++;
453 			msg << (it == statuses.end() ? " or " : ", ");
454 		}
455 	}
456 	msg << statusName(err) << "." << TestLog::EndMessage;
457 	m_testCtx.getLog() << TestLog::Message << "Received " << statusName(glStatus)
458 			 << "." << TestLog::EndMessage;
459 
460 	if (!contains(statuses, glStatus))
461 	{
462 		// The returned status value was not acceptable.
463 		if (glStatus == GL_FRAMEBUFFER_COMPLETE)
464 			fail("Framebuffer checked as complete, expected incomplete");
465 		else if (statuses.size() == 1 && contains(statuses, GL_FRAMEBUFFER_COMPLETE))
466 			fail("Framebuffer checked is incomplete, expected complete");
467 		else
468 			// An incomplete status is allowed, but not _this_ incomplete status.
469 			fail("Framebuffer checked as incomplete, but with wrong status");
470 	}
471 	else if (glStatus != GL_FRAMEBUFFER_COMPLETE &&
472 			 contains(statuses, GL_FRAMEBUFFER_COMPLETE))
473 	{
474 		qualityWarning("Framebuffer object could have checked as complete but did not.");
475 	}
476 	else
477 		pass();
478 
479 	return ret;
480 }
481 
build(FboBuilder & builder)482 IterateResult TestBase::build (FboBuilder& builder)
483 {
484 	DE_UNREF(builder);
485 	return STOP;
486 }
487 
getDefaultFormat(GLenum attPoint,GLenum bufType) const488 ImageFormat TestBase::getDefaultFormat (GLenum attPoint, GLenum bufType) const
489 {
490 	if (bufType == GL_NONE)
491 	{
492 		return ImageFormat::none();
493 	}
494 
495 	// Prefer a standard format, if there is one, but if not, use a format
496 	// provided by an extension.
497 	Formats formats = m_ctx.getMinFormats().getFormats(formatFlag(attPoint) |
498 														 formatFlag(bufType));
499 	Formats::const_iterator it = formats.begin();
500 	if (it == formats.end())
501 	{
502 		formats = m_ctx.getCtxFormats().getFormats(formatFlag(attPoint) |
503 													 formatFlag(bufType));
504 		it = formats.begin();
505 	}
506 	if (it == formats.end())
507 		throw tcu::NotSupportedError("Unsupported attachment kind for attachment point",
508 									 "", __FILE__, __LINE__);
509 	return *it;
510 };
511 
makeImage(GLenum bufType,ImageFormat format,GLsizei width,GLsizei height,FboBuilder & builder)512 Image* makeImage (GLenum bufType, ImageFormat format,
513 				  GLsizei width, GLsizei height, FboBuilder& builder)
514 {
515 	Image* image = DE_NULL;
516 	switch (bufType)
517 	{
518 		case GL_NONE:
519 			return DE_NULL;
520 		case GL_RENDERBUFFER:
521 			image = &builder.makeConfig<Renderbuffer>();
522 			break;
523 		case GL_TEXTURE:
524 			image = &builder.makeConfig<Texture2D>();
525 			break;
526 		default:
527 			DE_ASSERT(!"Impossible case");
528 	}
529 	image->internalFormat = format;
530 	image->width = width;
531 	image->height = height;
532 	return image;
533 }
534 
makeAttachment(GLenum bufType,ImageFormat format,GLsizei width,GLsizei height,FboBuilder & builder)535 Attachment* makeAttachment (GLenum bufType, ImageFormat format,
536 							GLsizei width, GLsizei height, FboBuilder& builder)
537 {
538 	Image* const imgCfg = makeImage (bufType, format, width, height, builder);
539 	Attachment* att = DE_NULL;
540 	GLuint img = 0;
541 
542 	if (Renderbuffer* rboCfg = dynamic_cast<Renderbuffer*>(imgCfg))
543 	{
544 		img = builder.glCreateRbo(*rboCfg);
545 		att = &builder.makeConfig<RenderbufferAttachment>();
546 	}
547 	else if (Texture2D* texCfg = dynamic_cast<Texture2D*>(imgCfg))
548 	{
549 		img = builder.glCreateTexture(*texCfg);
550 		TextureFlatAttachment& texAtt = builder.makeConfig<TextureFlatAttachment>();
551 		texAtt.texTarget = GL_TEXTURE_2D;
552 		att = &texAtt;
553 	}
554 	else
555 	{
556 		DE_ASSERT(imgCfg == DE_NULL);
557 		return DE_NULL;
558 	}
559 	att->imageName = img;
560 	return att;
561 }
562 
attachTargetToNew(GLenum target,GLenum bufType,ImageFormat format,GLsizei width,GLsizei height,FboBuilder & builder)563 void TestBase::attachTargetToNew (GLenum target, GLenum bufType, ImageFormat format,
564 								  GLsizei width, GLsizei height, FboBuilder& builder)
565 {
566 	ImageFormat imgFmt = format;
567 	if (imgFmt.format == GL_NONE)
568 		imgFmt = getDefaultFormat(target, bufType);
569 
570 	const Attachment* const att = makeAttachment(bufType, imgFmt, width, height, builder);
571 	builder.glAttach(target, att);
572 }
573 
formatName(ImageFormat format)574 static string formatName (ImageFormat format)
575 {
576 	const string s = getPixelFormatName(format.format);
577 	const string fmtStr = toLower(s.substr(3));
578 
579 	if (format.unsizedType != GL_NONE)
580 	{
581 		const string typeStr = getTypeName(format.unsizedType);
582 		return fmtStr + "_" + toLower(typeStr.substr(3));
583 	}
584 
585 	return fmtStr;
586 }
587 
formatDesc(ImageFormat format)588 static string formatDesc (ImageFormat format)
589 {
590 	const string fmtStr = getPixelFormatName(format.format);
591 
592 	if (format.unsizedType != GL_NONE)
593 	{
594 		const string typeStr = getTypeName(format.unsizedType);
595 		return fmtStr + " with type " + typeStr;
596 	}
597 
598 	return fmtStr;
599 }
600 
601 struct RenderableParams
602 {
603 	GLenum				attPoint;
604 	GLenum				bufType;
605 	ImageFormat 		format;
getNamedeqp::gls::fboc::details::RenderableParams606 	static string		getName				(const RenderableParams& params)
607 	{
608 		return formatName(params.format);
609 	}
getDescriptiondeqp::gls::fboc::details::RenderableParams610 	static string		getDescription		(const RenderableParams& params)
611 	{
612 		return formatDesc(params.format);
613 	}
614 };
615 
616 class RenderableTest : public ParamTest<RenderableParams>
617 {
618 public:
RenderableTest(Context & group,const Params & params)619 					RenderableTest		(Context& group, const Params& params)
620 						: ParamTest<RenderableParams> (group, params) {}
621 	IterateResult	build				(FboBuilder& builder);
622 };
623 
build(FboBuilder & builder)624 IterateResult RenderableTest::build (FboBuilder& builder)
625 {
626 	attachTargetToNew(m_params.attPoint, m_params.bufType, m_params.format, 64, 64, builder);
627 	return STOP;
628 }
629 
attTypeName(GLenum bufType)630 string attTypeName (GLenum bufType)
631 {
632 	switch (bufType)
633 	{
634 		case GL_NONE:
635 			return "none";
636 		case GL_RENDERBUFFER:
637 			return "rbo";
638 		case GL_TEXTURE:
639 			return "tex";
640 		default:
641 			DE_ASSERT(!"Impossible case");
642 	}
643 	return ""; // Shut up compiler
644 }
645 
646 struct AttachmentParams
647 {
648 	GLenum						color0Kind;
649 	GLenum						colornKind;
650 	GLenum						depthKind;
651 	GLenum						stencilKind;
652 
653 	static string		getName			(const AttachmentParams& params);
getDescriptiondeqp::gls::fboc::details::AttachmentParams654 	static string		getDescription	(const AttachmentParams& params)
655 	{
656 		return getName(params);
657 	}
658 };
659 
getName(const AttachmentParams & params)660 string AttachmentParams::getName (const AttachmentParams& params)
661 {
662 	return (attTypeName(params.color0Kind) + "_" +
663 			attTypeName(params.colornKind) + "_" +
664 			attTypeName(params.depthKind) + "_" +
665 			attTypeName(params.stencilKind));
666 }
667 
668 //! Test for combinations of different kinds of attachments
669 class AttachmentTest : public ParamTest<AttachmentParams>
670 {
671 public:
AttachmentTest(Context & group,Params & params)672 					AttachmentTest		(Context& group, Params& params)
673 						: ParamTest<AttachmentParams> (group, params) {}
674 
675 protected:
676 	IterateResult 	build				(FboBuilder& builder);
677 	void			makeDepthAndStencil	(FboBuilder& builder);
678 };
679 
680 
makeDepthAndStencil(FboBuilder & builder)681 void AttachmentTest::makeDepthAndStencil (FboBuilder& builder)
682 {
683 	if (m_params.stencilKind == m_params.depthKind)
684 	{
685 		// If there is a common stencil+depth -format, try to use a common
686 		// image for both attachments.
687 		const FormatFlags flags =
688 			DEPTH_RENDERABLE | STENCIL_RENDERABLE | formatFlag(m_params.stencilKind);
689 		const Formats& formats = m_ctx.getMinFormats().getFormats(flags);
690 		Formats::const_iterator it = formats.begin();
691 		if (it != formats.end())
692 		{
693 			const ImageFormat format = *it;
694 			Attachment* att = makeAttachment(m_params.depthKind, format, 64, 64, builder);
695 			builder.glAttach(GL_DEPTH_ATTACHMENT, att);
696 			builder.glAttach(GL_STENCIL_ATTACHMENT, att);
697 			return;
698 		}
699 	}
700 	// Either the kinds were separate, or a suitable format was not found.
701 	// Create separate images.
702 	attachTargetToNew(GL_STENCIL_ATTACHMENT, m_params.stencilKind, ImageFormat::none(),
703 					  64, 64, builder);
704 	attachTargetToNew(GL_DEPTH_ATTACHMENT, m_params.depthKind, ImageFormat::none(),
705 					  64, 64, builder);
706 }
707 
build(FboBuilder & builder)708 IterateResult AttachmentTest::build (FboBuilder& builder)
709 {
710 	attachTargetToNew(GL_COLOR_ATTACHMENT0, m_params.color0Kind, ImageFormat::none(),
711 					  64, 64, builder);
712 
713 	if (m_params.colornKind != GL_NONE)
714 	{
715 		TCU_CHECK_AND_THROW(NotSupportedError, m_ctx.haveMultiColorAtts(),
716 							"Multiple attachments not supported");
717 		GLint maxAttachments = 1;
718 		gl(*this).getIntegerv(GL_MAX_COLOR_ATTACHMENTS, &maxAttachments);
719 		GLU_EXPECT_NO_ERROR(
720 			gl(*this).getError(), "Couldn't read GL_MAX_COLOR_ATTACHMENTS");
721 
722 		for (int i = 1; i < maxAttachments; i++)
723 		{
724 			attachTargetToNew(GL_COLOR_ATTACHMENT0 + i, m_params.colornKind,
725 							  ImageFormat::none(), 64, 64, builder);
726 		}
727 	}
728 
729 	makeDepthAndStencil(builder);
730 
731 	return STOP;
732 }
733 
734 class EmptyImageTest : public TestBase
735 {
736 public:
EmptyImageTest(Context & group,const char * name,const char * desc)737 					EmptyImageTest	(Context& group,
738 									 const char* name, const char* desc)
739 						: TestBase	(group, name, desc) {}
740 
741 	IterateResult	build			(FboBuilder& builder);
742 };
743 
build(FboBuilder & builder)744 IterateResult EmptyImageTest::build (FboBuilder& builder)
745 {
746 	attachTargetToNew(GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, ImageFormat::none(),
747 					  0, 0, builder);
748 	return STOP;
749 }
750 
751 
752 class DistinctSizeTest : public TestBase
753 {
754 public:
DistinctSizeTest(Context & group,const char * name,const char * desc)755 					DistinctSizeTest	(Context& group,
756 										 const char* name, const char* desc)
757 						: TestBase		(group, name, desc) {}
758 
759 	IterateResult	build				(FboBuilder& builder);
760 };
761 
build(FboBuilder & builder)762 IterateResult DistinctSizeTest::build (FboBuilder& builder)
763 {
764 	attachTargetToNew(GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, ImageFormat::none(),
765 					  64, 64, builder);
766 	attachTargetToNew(GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, ImageFormat::none(),
767 					  128, 128, builder);
768 	return STOP;
769 }
770 
createRenderableTests(void)771 TestCaseGroup* Context::createRenderableTests (void)
772 {
773 	TestCaseGroup* const renderableTests = new TestCaseGroup(
774 		m_testCtx, "renderable", "Tests for support of renderable image formats");
775 
776 	TestCaseGroup* const rbRenderableTests = new TestCaseGroup(
777 		m_testCtx, "renderbuffer", "Tests for renderbuffer formats");
778 
779 	TestCaseGroup* const texRenderableTests = new TestCaseGroup(
780 		m_testCtx, "texture", "Tests for texture formats");
781 
782 	static const struct AttPoint {
783 		GLenum 			attPoint;
784 		const char* 	name;
785 		const char* 	desc;
786 	} attPoints[] =
787 	{
788 		{ GL_COLOR_ATTACHMENT0,		"color0",	"Tests for color attachments"	},
789 		{ GL_STENCIL_ATTACHMENT,	"stencil",	"Tests for stencil attachments" },
790 		{ GL_DEPTH_ATTACHMENT,		"depth",	"Tests for depth attachments"	},
791 	};
792 
793 	// At each attachment point, iterate through all the possible formats to
794 	// detect both false positives and false negatives.
795 	const Formats rboFmts = m_maxFormats.getFormats(ANY_FORMAT);
796 	const Formats texFmts = m_maxFormats.getFormats(ANY_FORMAT);
797 
798 	for (const AttPoint* it = DE_ARRAY_BEGIN(attPoints); it != DE_ARRAY_END(attPoints); it++)
799 	{
800 		TestCaseGroup* const rbAttTests = new TestCaseGroup(m_testCtx, it->name, it->desc);
801 		TestCaseGroup* const texAttTests = new TestCaseGroup(m_testCtx, it->name, it->desc);
802 
803 		for (Formats::const_iterator it2 = rboFmts.begin(); it2 != rboFmts.end(); it2++)
804 		{
805 			const RenderableParams params = { it->attPoint, GL_RENDERBUFFER, *it2 };
806 			rbAttTests->addChild(new RenderableTest(*this, params));
807 		}
808 		rbRenderableTests->addChild(rbAttTests);
809 
810 		for (Formats::const_iterator it2 = texFmts.begin(); it2 != texFmts.end(); it2++)
811 		{
812 			const RenderableParams params = { it->attPoint, GL_TEXTURE, *it2 };
813 			texAttTests->addChild(new RenderableTest(*this, params));
814 		}
815 		texRenderableTests->addChild(texAttTests);
816 	}
817 	renderableTests->addChild(rbRenderableTests);
818 	renderableTests->addChild(texRenderableTests);
819 
820 	return renderableTests;
821 }
822 
createAttachmentTests(void)823 TestCaseGroup* Context::createAttachmentTests (void)
824 {
825 	TestCaseGroup* const attCombTests = new TestCaseGroup(
826 		m_testCtx, "attachment_combinations", "Tests for attachment combinations");
827 
828 	static const GLenum s_bufTypes[] = { GL_NONE, GL_RENDERBUFFER, GL_TEXTURE };
829 	static const Range<GLenum> s_kinds = GLS_ARRAY_RANGE(s_bufTypes);
830 
831 	for (const GLenum* col0 = s_kinds.begin(); col0 != s_kinds.end(); ++col0)
832 		for (const GLenum* coln = s_kinds.begin(); coln != s_kinds.end(); ++coln)
833 			for (const GLenum* dep = s_kinds.begin(); dep != s_kinds.end(); ++dep)
834 				for (const GLenum* stc = s_kinds.begin(); stc != s_kinds.end(); ++stc)
835 				{
836 					AttachmentParams params = { *col0, *coln, *dep, *stc };
837 					attCombTests->addChild(new AttachmentTest(*this, params));
838 				}
839 
840 	return attCombTests;
841 }
842 
createSizeTests(void)843 TestCaseGroup* Context::createSizeTests (void)
844 {
845 	TestCaseGroup* const sizeTests = new TestCaseGroup(
846 		m_testCtx, "size", "Tests for attachment sizes");
847 	sizeTests->addChild(new EmptyImageTest(
848 							*this, "zero",
849 							"Test for zero-sized image attachment"));
850 	sizeTests->addChild(new DistinctSizeTest(
851 							*this, "distinct",
852 							"Test for attachments with different sizes"));
853 
854 	return sizeTests;
855 }
856 
857 } // details
858 
859 } // fboc
860 } // gls
861 } // deqp
862