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
34using namespace glw;
35using glu::RenderContext;
36using glu::getFramebufferStatusName;
37using glu::getPixelFormatName;
38using glu::getTypeName;
39using glu::getErrorName;
40using glu::Framebuffer;
41using tcu::TestCase;
42using tcu::TestCaseGroup;
43using tcu::TestLog;
44using tcu::MessageBuilder;
45using tcu::TestNode;
46using std::string;
47using de::toString;
48using namespace deqp::gls::FboUtil;
49using namespace deqp::gls::FboUtil::config;
50typedef TestCase::IterateResult IterateResult;
51
52namespace deqp
53{
54namespace gls
55{
56namespace fboc
57{
58
59namespace details
60{
61// \todo [2013-12-04 lauri] Place in deStrUtil.hpp?
62
63string 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
73static 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
80static const FormatKey s_oesPackedDepthStencilSizedFormats[] =
81{
82	GL_DEPTH24_STENCIL8,
83};
84
85static const FormatKey s_oesPackedDepthStencilTexFormats[] =
86{
87	GLS_UNSIZED_FORMATKEY(GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8),
88};
89
90// GL_OES_required_internalformat
91static 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
97static const FormatKey s_oesRequiredInternalFormatDepthFormats[] =
98{
99	GL_DEPTH_COMPONENT16,
100};
101
102// GL_EXT_color_buffer_half_float
103static const FormatKey s_extColorBufferHalfFloatFormats[] =
104{
105	GL_RGBA16F, GL_RGB16F, GL_RG16F, GL_R16F,
106};
107
108static const FormatKey s_oesDepth24SizedFormats[] =
109{
110	GL_DEPTH_COMPONENT24
111};
112
113static const FormatKey s_oesDepth32SizedFormats[] =
114{
115	GL_DEPTH_COMPONENT32
116};
117
118static const FormatKey s_oesRgb8Rgba8RboFormats[] =
119{
120	GL_RGB8,
121	GL_RGBA8,
122};
123
124static const FormatKey s_oesRequiredInternalFormatRgb8ColorFormat[] =
125{
126	GL_RGB8,
127};
128
129static 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
135static const FormatKey s_oesRequiredInternalFormat10bitColorFormats[] =
136{
137	GL_RGB10_A2, GL_RGB10,
138};
139
140static const FormatKey s_extTextureRgRboFormats[] =
141{
142	GL_R8, GL_RG8,
143};
144
145static 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
151static const FormatKey s_extTextureRgFloatTexFormats[] =
152{
153	GLS_UNSIZED_FORMATKEY(GL_RED,	GL_FLOAT),
154	GLS_UNSIZED_FORMATKEY(GL_RG,	GL_FLOAT),
155};
156
157static 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
163static const FormatKey s_nvPackedFloatRboFormats[] =
164{
165	GL_R11F_G11F_B10F,
166};
167
168static const FormatKey s_nvPackedFloatTexFormats[] =
169{
170	GLS_UNSIZED_FORMATKEY(GL_RGB,	GL_UNSIGNED_INT_10F_11F_11F_REV),
171};
172
173static const FormatKey s_extSrgbRboFormats[] =
174{
175	GL_SRGB8_ALPHA8,
176};
177
178static const FormatKey s_extSrgbRenderableTexFormats[] =
179{
180	GLS_UNSIZED_FORMATKEY(GL_SRGB_ALPHA,	GL_UNSIGNED_BYTE),
181};
182
183static const FormatKey s_extSrgbNonRenderableTexFormats[] =
184{
185	GLS_UNSIZED_FORMATKEY(GL_SRGB,			GL_UNSIGNED_BYTE),
186	GL_SRGB8,
187};
188
189static const FormatKey s_nvSrgbFormatsRboFormats[] =
190{
191	GL_SRGB8,
192};
193
194static const FormatKey s_nvSrgbFormatsTextureFormats[] =
195{
196	GL_SRGB8,
197
198	// The extension does not actually require any unsized format
199	// to be renderable. However, the renderablility of unsized
200	// SRGB,UBYTE internalformat-type pair is implied.
201	GLS_UNSIZED_FORMATKEY(GL_SRGB,			GL_UNSIGNED_BYTE),
202};
203
204static const FormatKey s_oesRgb8Rgba8TexFormats[] =
205{
206	GLS_UNSIZED_FORMATKEY(GL_RGB,		GL_UNSIGNED_BYTE),
207	GLS_UNSIZED_FORMATKEY(GL_RGBA,		GL_UNSIGNED_BYTE),
208};
209
210static const FormatExtEntry s_esExtFormats[] =
211{
212	{
213		"GL_OES_depth_texture",
214		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | TEXTURE_VALID,
215		GLS_ARRAY_RANGE(s_oesDepthTextureFormats),
216	},
217	{
218		"GL_OES_packed_depth_stencil",
219		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | STENCIL_RENDERABLE | RENDERBUFFER_VALID,
220		GLS_ARRAY_RANGE(s_oesPackedDepthStencilSizedFormats)
221	},
222	{
223		"GL_OES_packed_depth_stencil GL_OES_required_internalformat",
224		TEXTURE_VALID,
225		GLS_ARRAY_RANGE(s_oesPackedDepthStencilSizedFormats)
226	},
227	{
228		"GL_OES_packed_depth_stencil",
229		DEPTH_RENDERABLE | STENCIL_RENDERABLE | TEXTURE_VALID,
230		GLS_ARRAY_RANGE(s_oesPackedDepthStencilTexFormats)
231	},
232	// \todo [2013-12-10 lauri] Find out if OES_texture_half_float is really a
233	// requirement on ES3 also. Or is color_buffer_half_float applicatble at
234	// all on ES3, since there's also EXT_color_buffer_float?
235	{
236		"GL_OES_texture_half_float GL_EXT_color_buffer_half_float",
237		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
238		GLS_ARRAY_RANGE(s_extColorBufferHalfFloatFormats)
239	},
240
241	// OES_required_internalformat doesn't actually specify that these are renderable,
242	// since it was written against ES 1.1.
243	{
244		"GL_OES_required_internalformat",
245		 // Allow but don't require RGBA8 to be color-renderable if
246		 // OES_rgb8_rgba8 is not present.
247		COLOR_RENDERABLE | TEXTURE_VALID,
248		GLS_ARRAY_RANGE(s_oesRequiredInternalFormatColorFormats)
249	},
250	{
251		"GL_OES_required_internalformat",
252		DEPTH_RENDERABLE | TEXTURE_VALID,
253		GLS_ARRAY_RANGE(s_oesRequiredInternalFormatDepthFormats)
254	},
255	{
256		"GL_EXT_texture_rg",
257		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
258		GLS_ARRAY_RANGE(s_extTextureRgRboFormats)
259	},
260	// These are not specified to be color-renderable, but the wording is
261	// exactly as ambiguous as the wording in the ES2 spec.
262	{
263		"GL_EXT_texture_rg",
264		COLOR_RENDERABLE | TEXTURE_VALID,
265		GLS_ARRAY_RANGE(s_extTextureRgTexFormats)
266	},
267	{
268		"GL_EXT_texture_rg GL_OES_texture_float",
269		COLOR_RENDERABLE | TEXTURE_VALID,
270		GLS_ARRAY_RANGE(s_extTextureRgFloatTexFormats)
271	},
272	{
273		"GL_EXT_texture_rg GL_OES_texture_half_float",
274		COLOR_RENDERABLE | TEXTURE_VALID,
275		GLS_ARRAY_RANGE(s_extTextureRgHalfFloatTexFormats)
276	},
277
278	{
279		"GL_NV_packed_float",
280		COLOR_RENDERABLE | TEXTURE_VALID,
281		GLS_ARRAY_RANGE(s_nvPackedFloatTexFormats)
282	},
283	{
284		"GL_NV_packed_float GL_EXT_color_buffer_half_float",
285		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
286		GLS_ARRAY_RANGE(s_nvPackedFloatRboFormats)
287	},
288
289	// Some Tegra drivers report GL_EXT_packed_float even for ES. Treat it as
290	// a synonym for the NV_ version.
291	{
292		"GL_EXT_packed_float",
293		COLOR_RENDERABLE | TEXTURE_VALID,
294		GLS_ARRAY_RANGE(s_nvPackedFloatTexFormats)
295	},
296	{
297		"GL_EXT_packed_float GL_EXT_color_buffer_half_float",
298		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
299		GLS_ARRAY_RANGE(s_nvPackedFloatRboFormats)
300	},
301
302	{
303		"GL_EXT_sRGB",
304		COLOR_RENDERABLE | TEXTURE_VALID,
305		GLS_ARRAY_RANGE(s_extSrgbRenderableTexFormats)
306	},
307	{
308		"GL_EXT_sRGB",
309		TEXTURE_VALID,
310		GLS_ARRAY_RANGE(s_extSrgbNonRenderableTexFormats)
311	},
312	{
313		"GL_EXT_sRGB",
314		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
315		GLS_ARRAY_RANGE(s_extSrgbRboFormats)
316	},
317	{
318		"GL_NV_sRGB_formats",
319		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
320		GLS_ARRAY_RANGE(s_nvSrgbFormatsRboFormats)
321	},
322	{
323		"GL_NV_sRGB_formats",
324		REQUIRED_RENDERABLE | COLOR_RENDERABLE | TEXTURE_VALID,
325		GLS_ARRAY_RANGE(s_nvSrgbFormatsTextureFormats)
326	},
327
328	 // In Khronos bug 7333 discussion, the consensus is that these texture
329	 // formats, at least, should be color-renderable. Still, that cannot be
330	 // found in any extension specs, so only allow it, not require it.
331	{
332		"GL_OES_rgb8_rgba8",
333		COLOR_RENDERABLE | TEXTURE_VALID,
334		GLS_ARRAY_RANGE(s_oesRgb8Rgba8TexFormats)
335	},
336	{
337		"GL_OES_rgb8_rgba8",
338		REQUIRED_RENDERABLE | COLOR_RENDERABLE | RENDERBUFFER_VALID,
339		GLS_ARRAY_RANGE(s_oesRgb8Rgba8RboFormats)
340	},
341	{
342		"GL_OES_rgb8_rgba8 GL_OES_required_internalformat",
343		TEXTURE_VALID,
344		GLS_ARRAY_RANGE(s_oesRequiredInternalFormatRgb8ColorFormat)
345	},
346
347	// The depth-renderability of the depth RBO formats is not explicitly
348	// spelled out, but all renderbuffer formats are meant to be renderable.
349	{
350		"GL_OES_depth24",
351		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | RENDERBUFFER_VALID,
352		GLS_ARRAY_RANGE(s_oesDepth24SizedFormats)
353	},
354	{
355		"GL_OES_depth24 GL_OES_required_internalformat GL_OES_depth_texture",
356		TEXTURE_VALID,
357		GLS_ARRAY_RANGE(s_oesDepth24SizedFormats)
358	},
359
360	{
361		"GL_OES_depth32",
362		REQUIRED_RENDERABLE | DEPTH_RENDERABLE | RENDERBUFFER_VALID,
363		GLS_ARRAY_RANGE(s_oesDepth32SizedFormats)
364	},
365	{
366		"GL_OES_depth32 GL_OES_required_internalformat GL_OES_depth_texture",
367		TEXTURE_VALID,
368		GLS_ARRAY_RANGE(s_oesDepth32SizedFormats)
369	},
370
371	{
372		"GL_EXT_texture_type_2_10_10_10_REV",
373		TEXTURE_VALID, // explicitly unrenderable
374		GLS_ARRAY_RANGE(s_extTextureType2101010RevFormats)
375	},
376	{
377		"GL_EXT_texture_type_2_10_10_10_REV GL_OES_required_internalformat",
378		TEXTURE_VALID, // explicitly unrenderable
379		GLS_ARRAY_RANGE(s_oesRequiredInternalFormat10bitColorFormats)
380	},
381};
382
383Context::Context (TestContext& testCtx,
384				  RenderContext& renderCtx,
385				  CheckerFactory& factory)
386	: m_testCtx				(testCtx)
387	, m_renderCtx			(renderCtx)
388	, m_verifier			(m_ctxFormats, factory)
389	, m_haveMultiColorAtts	(false)
390{
391	FormatExtEntries extRange = GLS_ARRAY_RANGE(s_esExtFormats);
392	addExtFormats(extRange);
393}
394
395void Context::addFormats (FormatEntries fmtRange)
396{
397	FboUtil::addFormats(m_minFormats, fmtRange);
398	FboUtil::addFormats(m_ctxFormats, fmtRange);
399	FboUtil::addFormats(m_maxFormats, fmtRange);
400}
401
402void Context::addExtFormats (FormatExtEntries extRange)
403{
404	FboUtil::addExtFormats(m_ctxFormats, extRange, &m_renderCtx);
405	FboUtil::addExtFormats(m_maxFormats, extRange, DE_NULL);
406}
407
408void TestBase::pass (void)
409{
410	m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
411}
412
413void TestBase::qualityWarning (const char* msg)
414{
415	m_testCtx.setTestResult(QP_TEST_RESULT_QUALITY_WARNING, msg);
416}
417
418void TestBase::fail (const char* msg)
419{
420	m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, msg);
421}
422
423static string statusName (GLenum status)
424{
425	const char* errorName = getErrorName(status);
426	if (status != GL_NO_ERROR && errorName != DE_NULL)
427		return string(errorName) + " (during FBO initialization)";
428
429	const char* fbStatusName = getFramebufferStatusName(status);
430	if (fbStatusName != DE_NULL)
431		return fbStatusName;
432
433	return "unknown value (" + toString(status) + ")";
434}
435
436const glw::Functions& gl (const TestBase& test)
437{
438	return test.getContext().getRenderContext().getFunctions();
439}
440
441IterateResult TestBase::iterate (void)
442{
443	glu::Framebuffer fbo(m_ctx.getRenderContext());
444	FboBuilder builder(*fbo, GL_FRAMEBUFFER, gl(*this));
445	const IterateResult ret = build(builder);
446	const StatusCodes statuses = m_ctx.getVerifier().validStatusCodes(builder);
447
448	GLenum glStatus = builder.getError();
449	if (glStatus == GL_NO_ERROR)
450		glStatus = gl(*this).checkFramebufferStatus(GL_FRAMEBUFFER);
451
452	// \todo [2013-12-04 lauri] Check if drawing operations succeed.
453
454	StatusCodes::const_iterator it = statuses.begin();
455	GLenum err = *it++;
456	logFramebufferConfig(builder, m_testCtx.getLog());
457
458	MessageBuilder msg(&m_testCtx.getLog());
459
460	msg << "Expected ";
461	if (it != statuses.end())
462	{
463		msg << "one of ";
464		while (it != statuses.end())
465		{
466			msg << statusName(err);
467			err = *it++;
468			msg << (it == statuses.end() ? " or " : ", ");
469		}
470	}
471	msg << statusName(err) << "." << TestLog::EndMessage;
472	m_testCtx.getLog() << TestLog::Message << "Received " << statusName(glStatus)
473			 << "." << TestLog::EndMessage;
474
475	if (!contains(statuses, glStatus))
476	{
477		// The returned status value was not acceptable.
478		if (glStatus == GL_FRAMEBUFFER_COMPLETE)
479			fail("Framebuffer checked as complete, expected incomplete");
480		else if (statuses.size() == 1 && contains(statuses, GL_FRAMEBUFFER_COMPLETE))
481			fail("Framebuffer checked is incomplete, expected complete");
482		else
483			// An incomplete status is allowed, but not _this_ incomplete status.
484			fail("Framebuffer checked as incomplete, but with wrong status");
485	}
486	else if (glStatus != GL_FRAMEBUFFER_COMPLETE &&
487			 contains(statuses, GL_FRAMEBUFFER_COMPLETE))
488	{
489		qualityWarning("Framebuffer object could have checked as complete but did not.");
490	}
491	else
492		pass();
493
494	return ret;
495}
496
497IterateResult TestBase::build (FboBuilder& builder)
498{
499	DE_UNREF(builder);
500	return STOP;
501}
502
503ImageFormat TestBase::getDefaultFormat (GLenum attPoint, GLenum bufType) const
504{
505	if (bufType == GL_NONE)
506	{
507		return ImageFormat::none();
508	}
509
510	// Prefer a standard format, if there is one, but if not, use a format
511	// provided by an extension.
512	Formats formats = m_ctx.getMinFormats().getFormats(formatFlag(attPoint) |
513														 formatFlag(bufType));
514	Formats::const_iterator it = formats.begin();
515	if (it == formats.end())
516	{
517		formats = m_ctx.getCtxFormats().getFormats(formatFlag(attPoint) |
518													 formatFlag(bufType));
519		it = formats.begin();
520	}
521	if (it == formats.end())
522		throw tcu::NotSupportedError("Unsupported attachment kind for attachment point",
523									 "", __FILE__, __LINE__);
524	return *it;
525};
526
527Image* makeImage (GLenum bufType, ImageFormat format,
528				  GLsizei width, GLsizei height, FboBuilder& builder)
529{
530	Image* image = DE_NULL;
531	switch (bufType)
532	{
533		case GL_NONE:
534			return DE_NULL;
535		case GL_RENDERBUFFER:
536			image = &builder.makeConfig<Renderbuffer>();
537			break;
538		case GL_TEXTURE:
539			image = &builder.makeConfig<Texture2D>();
540			break;
541		default:
542			DE_ASSERT(!"Impossible case");
543	}
544	image->internalFormat = format;
545	image->width = width;
546	image->height = height;
547	return image;
548}
549
550Attachment* makeAttachment (GLenum bufType, ImageFormat format,
551							GLsizei width, GLsizei height, FboBuilder& builder)
552{
553	Image* const imgCfg = makeImage (bufType, format, width, height, builder);
554	Attachment* att = DE_NULL;
555	GLuint img = 0;
556
557	if (Renderbuffer* rboCfg = dynamic_cast<Renderbuffer*>(imgCfg))
558	{
559		img = builder.glCreateRbo(*rboCfg);
560		att = &builder.makeConfig<RenderbufferAttachment>();
561	}
562	else if (Texture2D* texCfg = dynamic_cast<Texture2D*>(imgCfg))
563	{
564		img = builder.glCreateTexture(*texCfg);
565		TextureFlatAttachment& texAtt = builder.makeConfig<TextureFlatAttachment>();
566		texAtt.texTarget = GL_TEXTURE_2D;
567		att = &texAtt;
568	}
569	else
570	{
571		DE_ASSERT(imgCfg == DE_NULL);
572		return DE_NULL;
573	}
574	att->imageName = img;
575	return att;
576}
577
578void TestBase::attachTargetToNew (GLenum target, GLenum bufType, ImageFormat format,
579								  GLsizei width, GLsizei height, FboBuilder& builder)
580{
581	ImageFormat imgFmt = format;
582	if (imgFmt.format == GL_NONE)
583		imgFmt = getDefaultFormat(target, bufType);
584
585	const Attachment* const att = makeAttachment(bufType, imgFmt, width, height, builder);
586	builder.glAttach(target, att);
587}
588
589static string formatName (ImageFormat format)
590{
591	const string s = getPixelFormatName(format.format);
592	const string fmtStr = toLower(s.substr(3));
593
594	if (format.unsizedType != GL_NONE)
595	{
596		const string typeStr = getTypeName(format.unsizedType);
597		return fmtStr + "_" + toLower(typeStr.substr(3));
598	}
599
600	return fmtStr;
601}
602
603static string formatDesc (ImageFormat format)
604{
605	const string fmtStr = getPixelFormatName(format.format);
606
607	if (format.unsizedType != GL_NONE)
608	{
609		const string typeStr = getTypeName(format.unsizedType);
610		return fmtStr + " with type " + typeStr;
611	}
612
613	return fmtStr;
614}
615
616struct RenderableParams
617{
618	GLenum				attPoint;
619	GLenum				bufType;
620	ImageFormat 		format;
621	static string		getName				(const RenderableParams& params)
622	{
623		return formatName(params.format);
624	}
625	static string		getDescription		(const RenderableParams& params)
626	{
627		return formatDesc(params.format);
628	}
629};
630
631class RenderableTest : public ParamTest<RenderableParams>
632{
633public:
634					RenderableTest		(Context& group, const Params& params)
635						: ParamTest<RenderableParams> (group, params) {}
636	IterateResult	build				(FboBuilder& builder);
637};
638
639IterateResult RenderableTest::build (FboBuilder& builder)
640{
641	attachTargetToNew(m_params.attPoint, m_params.bufType, m_params.format, 64, 64, builder);
642	return STOP;
643}
644
645string attTypeName (GLenum bufType)
646{
647	switch (bufType)
648	{
649		case GL_NONE:
650			return "none";
651		case GL_RENDERBUFFER:
652			return "rbo";
653		case GL_TEXTURE:
654			return "tex";
655		default:
656			DE_ASSERT(!"Impossible case");
657	}
658	return ""; // Shut up compiler
659}
660
661struct AttachmentParams
662{
663	GLenum						color0Kind;
664	GLenum						colornKind;
665	GLenum						depthKind;
666	GLenum						stencilKind;
667
668	static string		getName			(const AttachmentParams& params);
669	static string		getDescription	(const AttachmentParams& params)
670	{
671		return getName(params);
672	}
673};
674
675string AttachmentParams::getName (const AttachmentParams& params)
676{
677	return (attTypeName(params.color0Kind) + "_" +
678			attTypeName(params.colornKind) + "_" +
679			attTypeName(params.depthKind) + "_" +
680			attTypeName(params.stencilKind));
681}
682
683//! Test for combinations of different kinds of attachments
684class AttachmentTest : public ParamTest<AttachmentParams>
685{
686public:
687					AttachmentTest		(Context& group, Params& params)
688						: ParamTest<AttachmentParams> (group, params) {}
689
690protected:
691	IterateResult 	build				(FboBuilder& builder);
692	void			makeDepthAndStencil	(FboBuilder& builder);
693};
694
695
696void AttachmentTest::makeDepthAndStencil (FboBuilder& builder)
697{
698	if (m_params.stencilKind == m_params.depthKind)
699	{
700		// If there is a common stencil+depth -format, try to use a common
701		// image for both attachments.
702		const FormatFlags flags =
703			DEPTH_RENDERABLE | STENCIL_RENDERABLE | formatFlag(m_params.stencilKind);
704		const Formats& formats = m_ctx.getMinFormats().getFormats(flags);
705		Formats::const_iterator it = formats.begin();
706		if (it != formats.end())
707		{
708			const ImageFormat format = *it;
709			Attachment* att = makeAttachment(m_params.depthKind, format, 64, 64, builder);
710			builder.glAttach(GL_DEPTH_ATTACHMENT, att);
711			builder.glAttach(GL_STENCIL_ATTACHMENT, att);
712			return;
713		}
714	}
715	// Either the kinds were separate, or a suitable format was not found.
716	// Create separate images.
717	attachTargetToNew(GL_STENCIL_ATTACHMENT, m_params.stencilKind, ImageFormat::none(),
718					  64, 64, builder);
719	attachTargetToNew(GL_DEPTH_ATTACHMENT, m_params.depthKind, ImageFormat::none(),
720					  64, 64, builder);
721}
722
723IterateResult AttachmentTest::build (FboBuilder& builder)
724{
725	attachTargetToNew(GL_COLOR_ATTACHMENT0, m_params.color0Kind, ImageFormat::none(),
726					  64, 64, builder);
727
728	if (m_params.colornKind != GL_NONE)
729	{
730		TCU_CHECK_AND_THROW(NotSupportedError, m_ctx.haveMultiColorAtts(),
731							"Multiple attachments not supported");
732		GLint maxAttachments = 1;
733		gl(*this).getIntegerv(GL_MAX_COLOR_ATTACHMENTS, &maxAttachments);
734		GLU_EXPECT_NO_ERROR(
735			gl(*this).getError(), "Couldn't read GL_MAX_COLOR_ATTACHMENTS");
736
737		for (int i = 1; i < maxAttachments; i++)
738		{
739			attachTargetToNew(GL_COLOR_ATTACHMENT0 + i, m_params.colornKind,
740							  ImageFormat::none(), 64, 64, builder);
741		}
742	}
743
744	makeDepthAndStencil(builder);
745
746	return STOP;
747}
748
749class EmptyImageTest : public TestBase
750{
751public:
752					EmptyImageTest	(Context& group,
753									 const char* name, const char* desc)
754						: TestBase	(group, name, desc) {}
755
756	IterateResult	build			(FboBuilder& builder);
757};
758
759IterateResult EmptyImageTest::build (FboBuilder& builder)
760{
761	attachTargetToNew(GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, ImageFormat::none(),
762					  0, 0, builder);
763	return STOP;
764}
765
766
767class DistinctSizeTest : public TestBase
768{
769public:
770					DistinctSizeTest	(Context& group,
771										 const char* name, const char* desc)
772						: TestBase		(group, name, desc) {}
773
774	IterateResult	build				(FboBuilder& builder);
775};
776
777IterateResult DistinctSizeTest::build (FboBuilder& builder)
778{
779	attachTargetToNew(GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, ImageFormat::none(),
780					  64, 64, builder);
781	attachTargetToNew(GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, ImageFormat::none(),
782					  128, 128, builder);
783	return STOP;
784}
785
786TestCaseGroup* Context::createRenderableTests (void)
787{
788	TestCaseGroup* const renderableTests = new TestCaseGroup(
789		m_testCtx, "renderable", "Tests for support of renderable image formats");
790
791	TestCaseGroup* const rbRenderableTests = new TestCaseGroup(
792		m_testCtx, "renderbuffer", "Tests for renderbuffer formats");
793
794	TestCaseGroup* const texRenderableTests = new TestCaseGroup(
795		m_testCtx, "texture", "Tests for texture formats");
796
797	static const struct AttPoint {
798		GLenum 			attPoint;
799		const char* 	name;
800		const char* 	desc;
801	} attPoints[] =
802	{
803		{ GL_COLOR_ATTACHMENT0,		"color0",	"Tests for color attachments"	},
804		{ GL_STENCIL_ATTACHMENT,	"stencil",	"Tests for stencil attachments" },
805		{ GL_DEPTH_ATTACHMENT,		"depth",	"Tests for depth attachments"	},
806	};
807
808	// At each attachment point, iterate through all the possible formats to
809	// detect both false positives and false negatives.
810	const Formats rboFmts = m_maxFormats.getFormats(ANY_FORMAT);
811	const Formats texFmts = m_maxFormats.getFormats(ANY_FORMAT);
812
813	for (const AttPoint* it = DE_ARRAY_BEGIN(attPoints); it != DE_ARRAY_END(attPoints); it++)
814	{
815		TestCaseGroup* const rbAttTests = new TestCaseGroup(m_testCtx, it->name, it->desc);
816		TestCaseGroup* const texAttTests = new TestCaseGroup(m_testCtx, it->name, it->desc);
817
818		for (Formats::const_iterator it2 = rboFmts.begin(); it2 != rboFmts.end(); it2++)
819		{
820			const RenderableParams params = { it->attPoint, GL_RENDERBUFFER, *it2 };
821			rbAttTests->addChild(new RenderableTest(*this, params));
822		}
823		rbRenderableTests->addChild(rbAttTests);
824
825		for (Formats::const_iterator it2 = texFmts.begin(); it2 != texFmts.end(); it2++)
826		{
827			const RenderableParams params = { it->attPoint, GL_TEXTURE, *it2 };
828			texAttTests->addChild(new RenderableTest(*this, params));
829		}
830		texRenderableTests->addChild(texAttTests);
831	}
832	renderableTests->addChild(rbRenderableTests);
833	renderableTests->addChild(texRenderableTests);
834
835	return renderableTests;
836}
837
838TestCaseGroup* Context::createAttachmentTests (void)
839{
840	TestCaseGroup* const attCombTests = new TestCaseGroup(
841		m_testCtx, "attachment_combinations", "Tests for attachment combinations");
842
843	static const GLenum s_bufTypes[] = { GL_NONE, GL_RENDERBUFFER, GL_TEXTURE };
844	static const Range<GLenum> s_kinds = GLS_ARRAY_RANGE(s_bufTypes);
845
846	for (const GLenum* col0 = s_kinds.begin(); col0 != s_kinds.end(); ++col0)
847		for (const GLenum* coln = s_kinds.begin(); coln != s_kinds.end(); ++coln)
848			for (const GLenum* dep = s_kinds.begin(); dep != s_kinds.end(); ++dep)
849				for (const GLenum* stc = s_kinds.begin(); stc != s_kinds.end(); ++stc)
850				{
851					AttachmentParams params = { *col0, *coln, *dep, *stc };
852					attCombTests->addChild(new AttachmentTest(*this, params));
853				}
854
855	return attCombTests;
856}
857
858TestCaseGroup* Context::createSizeTests (void)
859{
860	TestCaseGroup* const sizeTests = new TestCaseGroup(
861		m_testCtx, "size", "Tests for attachment sizes");
862	sizeTests->addChild(new EmptyImageTest(
863							*this, "zero",
864							"Test for zero-sized image attachment"));
865	sizeTests->addChild(new DistinctSizeTest(
866							*this, "distinct",
867							"Test for attachments with different sizes"));
868
869	return sizeTests;
870}
871
872} // details
873
874} // fboc
875} // gls
876} // deqp
877