modules/glshared/glsFboCompletenessTests.cpp

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