gpu/command_buffer/service/framebuffer_manager_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "gpu/command_buffer/service/error_state_mock.h"
   6 #include "gpu/command_buffer/service/framebuffer_manager.h"
   7 #include "gpu/command_buffer/service/feature_info.h"
   8 #include "gpu/command_buffer/service/gpu_service_test.h"
   9 #include "gpu/command_buffer/service/renderbuffer_manager.h"
  10 #include "gpu/command_buffer/service/test_helper.h"
  11 #include "gpu/command_buffer/service/texture_manager.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13 #include "ui/gl/gl_mock.h"
  14
  15 using ::testing::_;
  16 using ::testing::Return;
  17
  18 namespace gpu {
  19 namespace gles2 {
  20 namespace {
  21
  22 const GLint kMaxTextureSize = 64;
  23 const GLint kMaxCubemapSize = 64;
  24 const GLint kMaxRectangleTextureSize = 64;
  25 const GLint kMaxRenderbufferSize = 64;
  26 const GLint kMaxSamples = 4;
  27 const uint32 kMaxDrawBuffers = 16;
  28 const uint32 kMaxColorAttachments = 16;
  29 const bool kDepth24Supported = false;
  30 const bool kUseDefaultTextures = false;
  31
  32 }  // namespace
  33
  34 class FramebufferManagerTest : public GpuServiceTest {
  35  public:
  36   FramebufferManagerTest()
  37       : manager_(1, 1),
  38         texture_manager_(NULL,
  39                          new FeatureInfo(),
  40                          kMaxTextureSize,
  41                          kMaxCubemapSize,
  42                          kMaxRectangleTextureSize,
  43                          kUseDefaultTextures),
  44         renderbuffer_manager_(NULL,
  45                               kMaxRenderbufferSize,
  46                               kMaxSamples,
  47                               kDepth24Supported) {}
  48   ~FramebufferManagerTest() override {
  49     manager_.Destroy(false);
  50     texture_manager_.Destroy(false);
  51     renderbuffer_manager_.Destroy(false);
  52   }
  53
  54  protected:
  55
  56   FramebufferManager manager_;
  57   TextureManager texture_manager_;
  58   RenderbufferManager renderbuffer_manager_;
  59 };
  60
  61 TEST_F(FramebufferManagerTest, Basic) {
  62   const GLuint kClient1Id = 1;
  63   const GLuint kService1Id = 11;
  64   const GLuint kClient2Id = 2;
  65   // Check we can create framebuffer.
  66   manager_.CreateFramebuffer(kClient1Id, kService1Id);
  67   // Check framebuffer got created.
  68   Framebuffer* framebuffer1 = manager_.GetFramebuffer(kClient1Id);
  69   ASSERT_TRUE(framebuffer1 != NULL);
  70   EXPECT_FALSE(framebuffer1->IsDeleted());
  71   EXPECT_EQ(kService1Id, framebuffer1->service_id());
  72   GLuint client_id = 0;
  73   EXPECT_TRUE(manager_.GetClientId(framebuffer1->service_id(), &client_id));
  74   EXPECT_EQ(kClient1Id, client_id);
  75   // Check we get nothing for a non-existent framebuffer.
  76   EXPECT_TRUE(manager_.GetFramebuffer(kClient2Id) == NULL);
  77   // Check trying to a remove non-existent framebuffers does not crash.
  78   manager_.RemoveFramebuffer(kClient2Id);
  79   // Check framebuffer gets deleted when last reference is released.
  80   EXPECT_CALL(*gl_, DeleteFramebuffersEXT(1, ::testing::Pointee(kService1Id)))
  81       .Times(1)
  82       .RetiresOnSaturation();
  83   // Check we can't get the framebuffer after we remove it.
  84   manager_.RemoveFramebuffer(kClient1Id);
  85   EXPECT_TRUE(manager_.GetFramebuffer(kClient1Id) == NULL);
  86 }
  87
  88 TEST_F(FramebufferManagerTest, Destroy) {
  89   const GLuint kClient1Id = 1;
  90   const GLuint kService1Id = 11;
  91   // Check we can create framebuffer.
  92   manager_.CreateFramebuffer(kClient1Id, kService1Id);
  93   // Check framebuffer got created.
  94   Framebuffer* framebuffer1 = manager_.GetFramebuffer(kClient1Id);
  95   ASSERT_TRUE(framebuffer1 != NULL);
  96   EXPECT_CALL(*gl_, DeleteFramebuffersEXT(1, ::testing::Pointee(kService1Id)))
  97       .Times(1)
  98       .RetiresOnSaturation();
  99   manager_.Destroy(true);
 100   // Check the resources were released.
 101   framebuffer1 = manager_.GetFramebuffer(kClient1Id);
 102   ASSERT_TRUE(framebuffer1 == NULL);
 103 }
 104
 105 class FramebufferInfoTest : public GpuServiceTest {
 106  public:
 107   static const GLuint kClient1Id = 1;
 108   static const GLuint kService1Id = 11;
 109
 110   FramebufferInfoTest()
 111       : manager_(kMaxDrawBuffers,  kMaxColorAttachments),
 112         feature_info_(new FeatureInfo()),
 113         renderbuffer_manager_(NULL, kMaxRenderbufferSize, kMaxSamples,
 114                               kDepth24Supported) {
 115     texture_manager_.reset(new TextureManager(NULL,
 116                                               feature_info_.get(),
 117                                               kMaxTextureSize,
 118                                               kMaxCubemapSize,
 119                                               kMaxRectangleTextureSize,
 120                                               kUseDefaultTextures));
 121   }
 122   ~FramebufferInfoTest() override {
 123     manager_.Destroy(false);
 124     texture_manager_->Destroy(false);
 125     renderbuffer_manager_.Destroy(false);
 126   }
 127
 128  protected:
 129   void SetUp() override {
 130     InitializeContext("2.0", "GL_EXT_framebuffer_object");
 131   }
 132
 133   void InitializeContext(const char* gl_version, const char* extensions) {
 134     GpuServiceTest::SetUpWithGLVersion(gl_version, extensions);
 135     TestHelper::SetupFeatureInfoInitExpectationsWithGLVersion(gl_.get(),
 136         extensions, "", gl_version);
 137     feature_info_->Initialize();
 138     manager_.CreateFramebuffer(kClient1Id, kService1Id);
 139     error_state_.reset(new ::testing::StrictMock<gles2::MockErrorState>());
 140     framebuffer_ = manager_.GetFramebuffer(kClient1Id);
 141     ASSERT_TRUE(framebuffer_ != NULL);
 142   }
 143
 144   FramebufferManager manager_;
 145   Framebuffer* framebuffer_;
 146   scoped_refptr<FeatureInfo> feature_info_;
 147   scoped_ptr<TextureManager> texture_manager_;
 148   RenderbufferManager renderbuffer_manager_;
 149   scoped_ptr<MockErrorState> error_state_;
 150 };
 151
 152 // GCC requires these declarations, but MSVC requires they not be present
 153 #ifndef COMPILER_MSVC
 154 const GLuint FramebufferInfoTest::kClient1Id;
 155 const GLuint FramebufferInfoTest::kService1Id;
 156 #endif
 157
 158 TEST_F(FramebufferInfoTest, Basic) {
 159   EXPECT_EQ(kService1Id, framebuffer_->service_id());
 160   EXPECT_FALSE(framebuffer_->IsDeleted());
 161   EXPECT_TRUE(NULL == framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0));
 162   EXPECT_TRUE(NULL == framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT));
 163   EXPECT_TRUE(NULL == framebuffer_->GetAttachment(GL_STENCIL_ATTACHMENT));
 164   EXPECT_TRUE(
 165       NULL == framebuffer_->GetAttachment(GL_DEPTH_STENCIL_ATTACHMENT));
 166   EXPECT_FALSE(framebuffer_->HasDepthAttachment());
 167   EXPECT_FALSE(framebuffer_->HasStencilAttachment());
 168   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT),
 169             framebuffer_->IsPossiblyComplete());
 170   EXPECT_TRUE(framebuffer_->IsCleared());
 171   EXPECT_EQ(static_cast<GLenum>(0), framebuffer_->GetColorAttachmentFormat());
 172   EXPECT_FALSE(manager_.IsComplete(framebuffer_));
 173 }
 174
 175 TEST_F(FramebufferInfoTest, AttachRenderbuffer) {
 176   const GLuint kRenderbufferClient1Id = 33;
 177   const GLuint kRenderbufferService1Id = 333;
 178   const GLuint kRenderbufferClient2Id = 34;
 179   const GLuint kRenderbufferService2Id = 334;
 180   const GLuint kRenderbufferClient3Id = 35;
 181   const GLuint kRenderbufferService3Id = 335;
 182   const GLuint kRenderbufferClient4Id = 36;
 183   const GLuint kRenderbufferService4Id = 336;
 184   const GLsizei kWidth1 = 16;
 185   const GLsizei kHeight1 = 32;
 186   const GLenum kFormat1 = GL_RGBA4;
 187   const GLenum kBadFormat1 = GL_DEPTH_COMPONENT16;
 188   const GLsizei kSamples1 = 0;
 189   const GLsizei kWidth2 = 16;
 190   const GLsizei kHeight2 = 32;
 191   const GLenum kFormat2 = GL_DEPTH_COMPONENT16;
 192   const GLsizei kSamples2 = 0;
 193   const GLsizei kWidth3 = 16;
 194   const GLsizei kHeight3 = 32;
 195   const GLenum kFormat3 = GL_STENCIL_INDEX8;
 196   const GLsizei kSamples3 = 0;
 197   const GLsizei kWidth4 = 16;
 198   const GLsizei kHeight4 = 32;
 199   const GLenum kFormat4 = GL_STENCIL_INDEX8;
 200   const GLsizei kSamples4 = 0;
 201
 202   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 203   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 204   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_STENCIL_ATTACHMENT));
 205   EXPECT_FALSE(
 206       framebuffer_->HasUnclearedAttachment(GL_DEPTH_STENCIL_ATTACHMENT));
 207
 208   renderbuffer_manager_.CreateRenderbuffer(
 209       kRenderbufferClient1Id, kRenderbufferService1Id);
 210   Renderbuffer* renderbuffer1 =
 211       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient1Id);
 212   ASSERT_TRUE(renderbuffer1 != NULL);
 213
 214   // check adding one attachment
 215   framebuffer_->AttachRenderbuffer(GL_COLOR_ATTACHMENT0, renderbuffer1);
 216   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 217   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 218   EXPECT_EQ(static_cast<GLenum>(GL_RGBA4),
 219             framebuffer_->GetColorAttachmentFormat());
 220   EXPECT_FALSE(framebuffer_->HasDepthAttachment());
 221   EXPECT_FALSE(framebuffer_->HasStencilAttachment());
 222   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
 223             framebuffer_->IsPossiblyComplete());
 224   EXPECT_TRUE(framebuffer_->IsCleared());
 225
 226   // Try a format that's not good for COLOR_ATTACHMENT0.
 227   renderbuffer_manager_.SetInfo(
 228       renderbuffer1, kSamples1, kBadFormat1, kWidth1, kHeight1);
 229   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
 230             framebuffer_->IsPossiblyComplete());
 231
 232   // Try a good format.
 233   renderbuffer_manager_.SetInfo(
 234       renderbuffer1, kSamples1, kFormat1, kWidth1, kHeight1);
 235   EXPECT_EQ(static_cast<GLenum>(kFormat1),
 236             framebuffer_->GetColorAttachmentFormat());
 237   EXPECT_FALSE(framebuffer_->HasDepthAttachment());
 238   EXPECT_FALSE(framebuffer_->HasStencilAttachment());
 239   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 240             framebuffer_->IsPossiblyComplete());
 241   EXPECT_FALSE(framebuffer_->IsCleared());
 242
 243   // check adding another
 244   renderbuffer_manager_.CreateRenderbuffer(
 245       kRenderbufferClient2Id, kRenderbufferService2Id);
 246   Renderbuffer* renderbuffer2 =
 247       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient2Id);
 248   ASSERT_TRUE(renderbuffer2 != NULL);
 249   framebuffer_->AttachRenderbuffer(GL_DEPTH_ATTACHMENT, renderbuffer2);
 250   EXPECT_TRUE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 251   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 252   EXPECT_EQ(static_cast<GLenum>(kFormat1),
 253             framebuffer_->GetColorAttachmentFormat());
 254   EXPECT_TRUE(framebuffer_->HasDepthAttachment());
 255   EXPECT_FALSE(framebuffer_->HasStencilAttachment());
 256   // The attachment has a size of 0,0 so depending on the order of the map
 257   // of attachments it could either get INCOMPLETE_ATTACHMENT because it's 0,0
 258   // or INCOMPLETE_DIMENSIONS because it's not the same size as the other
 259   // attachment.
 260   GLenum status = framebuffer_->IsPossiblyComplete();
 261   EXPECT_TRUE(
 262       status == GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT ||
 263       status == GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT);
 264   EXPECT_FALSE(framebuffer_->IsCleared());
 265
 266   renderbuffer_manager_.SetInfo(
 267       renderbuffer2, kSamples2, kFormat2, kWidth2, kHeight2);
 268   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 269             framebuffer_->IsPossiblyComplete());
 270   EXPECT_FALSE(framebuffer_->IsCleared());
 271   EXPECT_TRUE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 272
 273   // check marking them as cleared.
 274   manager_.MarkAttachmentsAsCleared(
 275       framebuffer_, &renderbuffer_manager_, texture_manager_.get());
 276   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 277   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 278   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 279             framebuffer_->IsPossiblyComplete());
 280   EXPECT_TRUE(framebuffer_->IsCleared());
 281
 282   // Check adding one that is already cleared.
 283   renderbuffer_manager_.CreateRenderbuffer(
 284       kRenderbufferClient3Id, kRenderbufferService3Id);
 285   Renderbuffer* renderbuffer3 =
 286       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient3Id);
 287   ASSERT_TRUE(renderbuffer3 != NULL);
 288   renderbuffer_manager_.SetInfo(
 289       renderbuffer3, kSamples3, kFormat3, kWidth3, kHeight3);
 290   renderbuffer_manager_.SetCleared(renderbuffer3, true);
 291
 292   framebuffer_->AttachRenderbuffer(GL_STENCIL_ATTACHMENT, renderbuffer3);
 293   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_STENCIL_ATTACHMENT));
 294   EXPECT_EQ(static_cast<GLenum>(kFormat1),
 295             framebuffer_->GetColorAttachmentFormat());
 296   EXPECT_TRUE(framebuffer_->HasDepthAttachment());
 297   EXPECT_TRUE(framebuffer_->HasStencilAttachment());
 298   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 299             framebuffer_->IsPossiblyComplete());
 300   EXPECT_TRUE(framebuffer_->IsCleared());
 301
 302   // Check marking the renderbuffer as unclared.
 303   renderbuffer_manager_.SetInfo(
 304       renderbuffer1, kSamples1, kFormat1, kWidth1, kHeight1);
 305   EXPECT_EQ(static_cast<GLenum>(kFormat1),
 306             framebuffer_->GetColorAttachmentFormat());
 307   EXPECT_TRUE(framebuffer_->HasDepthAttachment());
 308   EXPECT_TRUE(framebuffer_->HasStencilAttachment());
 309   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 310             framebuffer_->IsPossiblyComplete());
 311   EXPECT_FALSE(framebuffer_->IsCleared());
 312
 313   const Framebuffer::Attachment* attachment =
 314       framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0);
 315   ASSERT_TRUE(attachment != NULL);
 316   EXPECT_EQ(kWidth1, attachment->width());
 317   EXPECT_EQ(kHeight1, attachment->height());
 318   EXPECT_EQ(kSamples1, attachment->samples());
 319   EXPECT_EQ(kFormat1, attachment->internal_format());
 320   EXPECT_FALSE(attachment->cleared());
 321
 322   EXPECT_TRUE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 323
 324   // Clear it.
 325   manager_.MarkAttachmentsAsCleared(
 326       framebuffer_, &renderbuffer_manager_, texture_manager_.get());
 327   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 328   EXPECT_TRUE(framebuffer_->IsCleared());
 329
 330   // Check replacing an attachment
 331   renderbuffer_manager_.CreateRenderbuffer(
 332       kRenderbufferClient4Id, kRenderbufferService4Id);
 333   Renderbuffer* renderbuffer4 =
 334       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient4Id);
 335   ASSERT_TRUE(renderbuffer4 != NULL);
 336   renderbuffer_manager_.SetInfo(
 337       renderbuffer4, kSamples4, kFormat4, kWidth4, kHeight4);
 338
 339   framebuffer_->AttachRenderbuffer(GL_STENCIL_ATTACHMENT, renderbuffer4);
 340   EXPECT_TRUE(framebuffer_->HasUnclearedAttachment(GL_STENCIL_ATTACHMENT));
 341   EXPECT_FALSE(framebuffer_->IsCleared());
 342
 343   attachment = framebuffer_->GetAttachment(GL_STENCIL_ATTACHMENT);
 344   ASSERT_TRUE(attachment != NULL);
 345   EXPECT_EQ(kWidth4, attachment->width());
 346   EXPECT_EQ(kHeight4, attachment->height());
 347   EXPECT_EQ(kSamples4, attachment->samples());
 348   EXPECT_EQ(kFormat4, attachment->internal_format());
 349   EXPECT_FALSE(attachment->cleared());
 350   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 351             framebuffer_->IsPossiblyComplete());
 352
 353   // Check changing an attachment.
 354   renderbuffer_manager_.SetInfo(
 355       renderbuffer4, kSamples4, kFormat4, kWidth4 + 1, kHeight4);
 356
 357   attachment = framebuffer_->GetAttachment(GL_STENCIL_ATTACHMENT);
 358   ASSERT_TRUE(attachment != NULL);
 359   EXPECT_EQ(kWidth4 + 1, attachment->width());
 360   EXPECT_EQ(kHeight4, attachment->height());
 361   EXPECT_EQ(kSamples4, attachment->samples());
 362   EXPECT_EQ(kFormat4, attachment->internal_format());
 363   EXPECT_FALSE(attachment->cleared());
 364   EXPECT_FALSE(framebuffer_->IsCleared());
 365   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT),
 366             framebuffer_->IsPossiblyComplete());
 367
 368   // Check removing it.
 369   framebuffer_->AttachRenderbuffer(GL_STENCIL_ATTACHMENT, NULL);
 370   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_STENCIL_ATTACHMENT));
 371   EXPECT_EQ(static_cast<GLenum>(kFormat1),
 372             framebuffer_->GetColorAttachmentFormat());
 373   EXPECT_TRUE(framebuffer_->HasDepthAttachment());
 374   EXPECT_FALSE(framebuffer_->HasStencilAttachment());
 375
 376   EXPECT_TRUE(framebuffer_->IsCleared());
 377   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 378             framebuffer_->IsPossiblyComplete());
 379
 380   // Remove depth, Set color to 0 size.
 381   framebuffer_->AttachRenderbuffer(GL_DEPTH_ATTACHMENT, NULL);
 382   renderbuffer_manager_.SetInfo(renderbuffer1, kSamples1, kFormat1, 0, 0);
 383   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
 384             framebuffer_->IsPossiblyComplete());
 385
 386   // Remove color.
 387   framebuffer_->AttachRenderbuffer(GL_COLOR_ATTACHMENT0, NULL);
 388   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT),
 389             framebuffer_->IsPossiblyComplete());
 390 }
 391
 392 TEST_F(FramebufferInfoTest, AttachTexture) {
 393   const GLuint kTextureClient1Id = 33;
 394   const GLuint kTextureService1Id = 333;
 395   const GLuint kTextureClient2Id = 34;
 396   const GLuint kTextureService2Id = 334;
 397   const GLint kDepth = 1;
 398   const GLint kBorder = 0;
 399   const GLenum kType = GL_UNSIGNED_BYTE;
 400   const GLsizei kWidth1 = 16;
 401   const GLsizei kHeight1 = 32;
 402   const GLint kLevel1 = 0;
 403   const GLenum kFormat1 = GL_RGBA;
 404   const GLenum kBadFormat1 = GL_DEPTH_COMPONENT16;
 405   const GLenum kTarget1 = GL_TEXTURE_2D;
 406   const GLsizei kSamples1 = 0;
 407   const GLsizei kWidth2 = 16;
 408   const GLsizei kHeight2 = 32;
 409   const GLint kLevel2 = 0;
 410   const GLenum kFormat2 = GL_RGB;
 411   const GLenum kTarget2 = GL_TEXTURE_2D;
 412   const GLsizei kSamples2 = 0;
 413   const GLsizei kWidth3 = 75;
 414   const GLsizei kHeight3 = 123;
 415   const GLint kLevel3 = 0;
 416   const GLenum kFormat3 = GL_RGB565;
 417   const GLsizei kSamples3 = 0;
 418   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 419   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 420   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_STENCIL_ATTACHMENT));
 421   EXPECT_FALSE(
 422       framebuffer_->HasUnclearedAttachment(GL_DEPTH_STENCIL_ATTACHMENT));
 423   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT),
 424             framebuffer_->IsPossiblyComplete());
 425
 426   texture_manager_->CreateTexture(kTextureClient1Id, kTextureService1Id);
 427   scoped_refptr<TextureRef> texture1(
 428       texture_manager_->GetTexture(kTextureClient1Id));
 429   ASSERT_TRUE(texture1.get() != NULL);
 430
 431   // check adding one attachment
 432   framebuffer_->AttachTexture(
 433       GL_COLOR_ATTACHMENT0, texture1.get(), kTarget1, kLevel1, kSamples1);
 434   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 435   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
 436             framebuffer_->IsPossiblyComplete());
 437   EXPECT_TRUE(framebuffer_->IsCleared());
 438   EXPECT_EQ(static_cast<GLenum>(0), framebuffer_->GetColorAttachmentFormat());
 439
 440   // Try format that doesn't work with COLOR_ATTACHMENT0
 441   texture_manager_->SetTarget(texture1.get(), GL_TEXTURE_2D);
 442   texture_manager_->SetLevelInfo(texture1.get(),
 443                                 GL_TEXTURE_2D,
 444                                 kLevel1,
 445                                 kBadFormat1,
 446                                 kWidth1,
 447                                 kHeight1,
 448                                 kDepth,
 449                                 kBorder,
 450                                 kBadFormat1,
 451                                 kType,
 452                                 true);
 453   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
 454             framebuffer_->IsPossiblyComplete());
 455
 456   // Try a good format.
 457   texture_manager_->SetLevelInfo(texture1.get(),
 458                                 GL_TEXTURE_2D,
 459                                 kLevel1,
 460                                 kFormat1,
 461                                 kWidth1,
 462                                 kHeight1,
 463                                 kDepth,
 464                                 kBorder,
 465                                 kFormat1,
 466                                 kType,
 467                                 false);
 468   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 469             framebuffer_->IsPossiblyComplete());
 470   EXPECT_FALSE(framebuffer_->IsCleared());
 471   texture_manager_->SetLevelInfo(texture1.get(),
 472                                 GL_TEXTURE_2D,
 473                                 kLevel1,
 474                                 kFormat1,
 475                                 kWidth1,
 476                                 kHeight1,
 477                                 kDepth,
 478                                 kBorder,
 479                                 kFormat1,
 480                                 kType,
 481                                 true);
 482   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 483             framebuffer_->IsPossiblyComplete());
 484   EXPECT_TRUE(framebuffer_->IsCleared());
 485   EXPECT_EQ(static_cast<GLenum>(kFormat1),
 486             framebuffer_->GetColorAttachmentFormat());
 487
 488   const Framebuffer::Attachment* attachment =
 489       framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0);
 490   ASSERT_TRUE(attachment != NULL);
 491   EXPECT_EQ(kWidth1, attachment->width());
 492   EXPECT_EQ(kHeight1, attachment->height());
 493   EXPECT_EQ(kSamples1, attachment->samples());
 494   EXPECT_EQ(kFormat1, attachment->internal_format());
 495   EXPECT_TRUE(attachment->cleared());
 496
 497   // Check replacing an attachment
 498   texture_manager_->CreateTexture(kTextureClient2Id, kTextureService2Id);
 499   scoped_refptr<TextureRef> texture2(
 500       texture_manager_->GetTexture(kTextureClient2Id));
 501   ASSERT_TRUE(texture2.get() != NULL);
 502   texture_manager_->SetTarget(texture2.get(), GL_TEXTURE_2D);
 503   texture_manager_->SetLevelInfo(texture2.get(),
 504                                 GL_TEXTURE_2D,
 505                                 kLevel2,
 506                                 kFormat2,
 507                                 kWidth2,
 508                                 kHeight2,
 509                                 kDepth,
 510                                 kBorder,
 511                                 kFormat2,
 512                                 kType,
 513                                 true);
 514
 515   framebuffer_->AttachTexture(
 516       GL_COLOR_ATTACHMENT0, texture2.get(), kTarget2, kLevel2, kSamples2);
 517   EXPECT_EQ(static_cast<GLenum>(kFormat2),
 518             framebuffer_->GetColorAttachmentFormat());
 519   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 520             framebuffer_->IsPossiblyComplete());
 521   EXPECT_TRUE(framebuffer_->IsCleared());
 522
 523   attachment = framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0);
 524   ASSERT_TRUE(attachment != NULL);
 525   EXPECT_EQ(kWidth2, attachment->width());
 526   EXPECT_EQ(kHeight2, attachment->height());
 527   EXPECT_EQ(kSamples2, attachment->samples());
 528   EXPECT_EQ(kFormat2, attachment->internal_format());
 529   EXPECT_TRUE(attachment->cleared());
 530
 531   // Check changing attachment
 532   texture_manager_->SetLevelInfo(texture2.get(),
 533                                 GL_TEXTURE_2D,
 534                                 kLevel3,
 535                                 kFormat3,
 536                                 kWidth3,
 537                                 kHeight3,
 538                                 kDepth,
 539                                 kBorder,
 540                                 kFormat3,
 541                                 kType,
 542                                 false);
 543   attachment = framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0);
 544   ASSERT_TRUE(attachment != NULL);
 545   EXPECT_EQ(kWidth3, attachment->width());
 546   EXPECT_EQ(kHeight3, attachment->height());
 547   EXPECT_EQ(kSamples3, attachment->samples());
 548   EXPECT_EQ(kFormat3, attachment->internal_format());
 549   EXPECT_FALSE(attachment->cleared());
 550   EXPECT_EQ(static_cast<GLenum>(kFormat3),
 551             framebuffer_->GetColorAttachmentFormat());
 552   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 553             framebuffer_->IsPossiblyComplete());
 554   EXPECT_FALSE(framebuffer_->IsCleared());
 555
 556   // Set to size 0
 557   texture_manager_->SetLevelInfo(texture2.get(),
 558                                 GL_TEXTURE_2D,
 559                                 kLevel3,
 560                                 kFormat3,
 561                                 0,
 562                                 0,
 563                                 kDepth,
 564                                 kBorder,
 565                                 kFormat3,
 566                                 kType,
 567                                 false);
 568   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT),
 569             framebuffer_->IsPossiblyComplete());
 570
 571   // Check removing it.
 572   framebuffer_->AttachTexture(GL_COLOR_ATTACHMENT0, NULL, 0, 0, 0);
 573   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) == NULL);
 574   EXPECT_EQ(static_cast<GLenum>(0), framebuffer_->GetColorAttachmentFormat());
 575
 576   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT),
 577             framebuffer_->IsPossiblyComplete());
 578   EXPECT_TRUE(framebuffer_->IsCleared());
 579 }
 580
 581 TEST_F(FramebufferInfoTest, DrawBuffers) {
 582   const GLuint kTextureClientId[] = { 33, 34 };
 583   const GLuint kTextureServiceId[] = { 333, 334 };
 584
 585   for (GLenum i = GL_COLOR_ATTACHMENT0;
 586        i < GL_COLOR_ATTACHMENT0 + kMaxColorAttachments; ++i) {
 587     EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(i));
 588   }
 589   EXPECT_FALSE(framebuffer_->HasUnclearedColorAttachments());
 590
 591   EXPECT_EQ(static_cast<GLenum>(GL_COLOR_ATTACHMENT0),
 592             framebuffer_->GetDrawBuffer(GL_DRAW_BUFFER0_ARB));
 593   for (GLenum i = GL_DRAW_BUFFER1_ARB;
 594        i < GL_DRAW_BUFFER0_ARB + kMaxDrawBuffers; ++i) {
 595     EXPECT_EQ(static_cast<GLenum>(GL_NONE),
 596               framebuffer_->GetDrawBuffer(i));
 597   }
 598
 599   for (size_t ii = 0; ii < arraysize(kTextureClientId); ++ii) {
 600     texture_manager_->CreateTexture(
 601         kTextureClientId[ii], kTextureServiceId[ii]);
 602     scoped_refptr<TextureRef> texture(
 603         texture_manager_->GetTexture(kTextureClientId[ii]));
 604     ASSERT_TRUE(texture.get() != NULL);
 605
 606     framebuffer_->AttachTexture(
 607         GL_COLOR_ATTACHMENT0 + ii, texture.get(), GL_TEXTURE_2D, 0, 0);
 608     EXPECT_FALSE(
 609         framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0 + ii));
 610
 611     const Framebuffer::Attachment* attachment =
 612         framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0 + ii);
 613     ASSERT_TRUE(attachment != NULL);
 614     EXPECT_TRUE(attachment->cleared());
 615   }
 616   EXPECT_TRUE(framebuffer_->IsCleared());
 617   EXPECT_FALSE(framebuffer_->HasUnclearedColorAttachments());
 618
 619   // Set a texture as uncleared.
 620   scoped_refptr<TextureRef> texture1(
 621       texture_manager_->GetTexture(kTextureClientId[1]));
 622   texture_manager_->SetTarget(texture1.get(), GL_TEXTURE_2D);
 623   texture_manager_->SetLevelInfo(
 624       texture1.get(), GL_TEXTURE_2D, 0, GL_RGBA, 4, 4,
 625       1, 0, GL_RGBA, GL_UNSIGNED_BYTE, false);
 626
 627   const Framebuffer::Attachment* attachment1 =
 628       framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT1);
 629   ASSERT_TRUE(attachment1 != NULL);
 630   EXPECT_FALSE(attachment1->cleared());
 631   EXPECT_FALSE(framebuffer_->IsCleared());
 632   EXPECT_TRUE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT1));
 633   EXPECT_TRUE(framebuffer_->HasUnclearedColorAttachments());
 634
 635   GLenum buffers[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1 };
 636   framebuffer_->SetDrawBuffers(2, buffers);
 637   EXPECT_EQ(static_cast<GLenum>(GL_COLOR_ATTACHMENT0),
 638             framebuffer_->GetDrawBuffer(GL_DRAW_BUFFER0_ARB));
 639   EXPECT_EQ(static_cast<GLenum>(GL_COLOR_ATTACHMENT1),
 640             framebuffer_->GetDrawBuffer(GL_DRAW_BUFFER1_ARB));
 641   for (GLenum i = GL_DRAW_BUFFER2_ARB;
 642        i < GL_DRAW_BUFFER0_ARB + kMaxDrawBuffers; ++i) {
 643     EXPECT_EQ(static_cast<GLenum>(GL_NONE),
 644               framebuffer_->GetDrawBuffer(i));
 645   }
 646
 647   // Nothing happens.
 648   framebuffer_->PrepareDrawBuffersForClear();
 649   framebuffer_->RestoreDrawBuffersAfterClear();
 650
 651   // Now we disable a draw buffer 1.
 652   buffers[1] = GL_NONE;
 653   framebuffer_->SetDrawBuffers(2, buffers);
 654   // We will enable the disabled draw buffer for clear(), and disable it
 655   // after the clear.
 656   EXPECT_CALL(*gl_, DrawBuffersARB(kMaxDrawBuffers, _))
 657       .Times(1)
 658       .RetiresOnSaturation();
 659   framebuffer_->PrepareDrawBuffersForClear();
 660   EXPECT_CALL(*gl_, DrawBuffersARB(kMaxDrawBuffers, _))
 661       .Times(1)
 662       .RetiresOnSaturation();
 663   framebuffer_->RestoreDrawBuffersAfterClear();
 664
 665   // Now remove draw buffer 1's attachment.
 666   framebuffer_->AttachTexture(GL_COLOR_ATTACHMENT1, NULL, 0, 0, 0);
 667   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT1) == NULL);
 668
 669   // Nothing happens.
 670   framebuffer_->PrepareDrawBuffersForClear();
 671   framebuffer_->RestoreDrawBuffersAfterClear();
 672 }
 673
 674 class FramebufferInfoFloatTest : public FramebufferInfoTest {
 675  public:
 676   FramebufferInfoFloatTest()
 677     : FramebufferInfoTest() {
 678   }
 679   ~FramebufferInfoFloatTest() override {}
 680
 681  protected:
 682   void SetUp() override {
 683     InitializeContext("OpenGL ES 3.0",
 684         "GL_OES_texture_float GL_EXT_color_buffer_float");
 685   }
 686 };
 687
 688 TEST_F(FramebufferInfoFloatTest, AttachFloatTexture) {
 689   const GLuint kTextureClientId = 33;
 690   const GLuint kTextureServiceId = 333;
 691   const GLint kDepth = 1;
 692   const GLint kBorder = 0;
 693   const GLenum kType = GL_FLOAT;
 694   const GLsizei kWidth = 16;
 695   const GLsizei kHeight = 32;
 696   const GLint kLevel = 0;
 697   const GLenum kFormat = GL_RGBA;
 698   const GLenum kInternalFormat = GL_RGBA32F;
 699   const GLenum kTarget = GL_TEXTURE_2D;
 700   const GLsizei kSamples = 0;
 701   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_COLOR_ATTACHMENT0));
 702   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_DEPTH_ATTACHMENT));
 703   EXPECT_FALSE(framebuffer_->HasUnclearedAttachment(GL_STENCIL_ATTACHMENT));
 704
 705   texture_manager_->CreateTexture(kTextureClientId, kTextureServiceId);
 706   scoped_refptr<TextureRef> texture(
 707       texture_manager_->GetTexture(kTextureClientId));
 708   ASSERT_TRUE(texture.get() != NULL);
 709
 710   framebuffer_->AttachTexture(
 711       GL_COLOR_ATTACHMENT0, texture.get(), kTarget, kLevel, kSamples);
 712   EXPECT_EQ(static_cast<GLenum>(0), framebuffer_->GetColorAttachmentFormat());
 713
 714   texture_manager_->SetTarget(texture.get(), GL_TEXTURE_2D);
 715   texture_manager_->SetLevelInfo(texture.get(),
 716                                 GL_TEXTURE_2D,
 717                                 kLevel,
 718                                 kInternalFormat,
 719                                 kWidth,
 720                                 kHeight,
 721                                 kDepth,
 722                                 kBorder,
 723                                 kFormat,
 724                                 kType,
 725                                 false);
 726   // Texture with a sized float internalformat is allowed as an attachment
 727   // since float color attachment extension is present.
 728   EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_COMPLETE),
 729             framebuffer_->IsPossiblyComplete());
 730 }
 731
 732 TEST_F(FramebufferInfoTest, UnbindRenderbuffer) {
 733   const GLuint kRenderbufferClient1Id = 33;
 734   const GLuint kRenderbufferService1Id = 333;
 735   const GLuint kRenderbufferClient2Id = 34;
 736   const GLuint kRenderbufferService2Id = 334;
 737
 738   renderbuffer_manager_.CreateRenderbuffer(
 739       kRenderbufferClient1Id, kRenderbufferService1Id);
 740   Renderbuffer* renderbuffer1 =
 741       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient1Id);
 742   ASSERT_TRUE(renderbuffer1 != NULL);
 743   renderbuffer_manager_.CreateRenderbuffer(
 744       kRenderbufferClient2Id, kRenderbufferService2Id);
 745   Renderbuffer* renderbuffer2 =
 746       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient2Id);
 747   ASSERT_TRUE(renderbuffer2 != NULL);
 748
 749   // Attach to 2 attachment points.
 750   framebuffer_->AttachRenderbuffer(GL_COLOR_ATTACHMENT0, renderbuffer1);
 751   framebuffer_->AttachRenderbuffer(GL_DEPTH_ATTACHMENT, renderbuffer1);
 752   // Check they were attached.
 753   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) != NULL);
 754   EXPECT_TRUE(framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT) != NULL);
 755   // Unbind unattached renderbuffer.
 756   framebuffer_->UnbindRenderbuffer(GL_RENDERBUFFER, renderbuffer2);
 757   // Should be no-op.
 758   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) != NULL);
 759   EXPECT_TRUE(framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT) != NULL);
 760   // Unbind renderbuffer.
 761   framebuffer_->UnbindRenderbuffer(GL_RENDERBUFFER, renderbuffer1);
 762   // Check they were detached
 763   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) == NULL);
 764   EXPECT_TRUE(framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT) == NULL);
 765 }
 766
 767 TEST_F(FramebufferInfoTest, UnbindTexture) {
 768   const GLuint kTextureClient1Id = 33;
 769   const GLuint kTextureService1Id = 333;
 770   const GLuint kTextureClient2Id = 34;
 771   const GLuint kTextureService2Id = 334;
 772   const GLenum kTarget1 = GL_TEXTURE_2D;
 773   const GLint kLevel1 = 0;
 774   const GLint kSamples1 = 0;
 775
 776   texture_manager_->CreateTexture(kTextureClient1Id, kTextureService1Id);
 777   scoped_refptr<TextureRef> texture1(
 778       texture_manager_->GetTexture(kTextureClient1Id));
 779   ASSERT_TRUE(texture1.get() != NULL);
 780   texture_manager_->CreateTexture(kTextureClient2Id, kTextureService2Id);
 781   scoped_refptr<TextureRef> texture2(
 782       texture_manager_->GetTexture(kTextureClient2Id));
 783   ASSERT_TRUE(texture2.get() != NULL);
 784
 785   // Attach to 2 attachment points.
 786   framebuffer_->AttachTexture(
 787       GL_COLOR_ATTACHMENT0, texture1.get(), kTarget1, kLevel1, kSamples1);
 788   framebuffer_->AttachTexture(
 789       GL_DEPTH_ATTACHMENT, texture1.get(), kTarget1, kLevel1, kSamples1);
 790   // Check they were attached.
 791   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) != NULL);
 792   EXPECT_TRUE(framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT) != NULL);
 793   // Unbind unattached texture.
 794   framebuffer_->UnbindTexture(kTarget1, texture2.get());
 795   // Should be no-op.
 796   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) != NULL);
 797   EXPECT_TRUE(framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT) != NULL);
 798   // Unbind texture.
 799   framebuffer_->UnbindTexture(kTarget1, texture1.get());
 800   // Check they were detached
 801   EXPECT_TRUE(framebuffer_->GetAttachment(GL_COLOR_ATTACHMENT0) == NULL);
 802   EXPECT_TRUE(framebuffer_->GetAttachment(GL_DEPTH_ATTACHMENT) == NULL);
 803 }
 804
 805 TEST_F(FramebufferInfoTest, IsCompleteMarkAsComplete) {
 806   const GLuint kRenderbufferClient1Id = 33;
 807   const GLuint kRenderbufferService1Id = 333;
 808   const GLuint kTextureClient2Id = 34;
 809   const GLuint kTextureService2Id = 334;
 810   const GLenum kTarget1 = GL_TEXTURE_2D;
 811   const GLint kLevel1 = 0;
 812   const GLint kSamples1 = 0;
 813
 814   renderbuffer_manager_.CreateRenderbuffer(
 815       kRenderbufferClient1Id, kRenderbufferService1Id);
 816   Renderbuffer* renderbuffer1 =
 817       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient1Id);
 818   ASSERT_TRUE(renderbuffer1 != NULL);
 819   texture_manager_->CreateTexture(kTextureClient2Id, kTextureService2Id);
 820   scoped_refptr<TextureRef> texture2(
 821       texture_manager_->GetTexture(kTextureClient2Id));
 822   ASSERT_TRUE(texture2.get() != NULL);
 823
 824   // Check MarkAsComlete marks as complete.
 825   manager_.MarkAsComplete(framebuffer_);
 826   EXPECT_TRUE(manager_.IsComplete(framebuffer_));
 827
 828   // Check at attaching marks as not complete.
 829   framebuffer_->AttachTexture(
 830       GL_COLOR_ATTACHMENT0, texture2.get(), kTarget1, kLevel1, kSamples1);
 831   EXPECT_FALSE(manager_.IsComplete(framebuffer_));
 832   manager_.MarkAsComplete(framebuffer_);
 833   EXPECT_TRUE(manager_.IsComplete(framebuffer_));
 834   framebuffer_->AttachRenderbuffer(GL_DEPTH_ATTACHMENT, renderbuffer1);
 835   EXPECT_FALSE(manager_.IsComplete(framebuffer_));
 836
 837   // Check MarkAttachmentsAsCleared marks as complete.
 838   manager_.MarkAttachmentsAsCleared(
 839       framebuffer_, &renderbuffer_manager_, texture_manager_.get());
 840   EXPECT_TRUE(manager_.IsComplete(framebuffer_));
 841
 842   // Check Unbind marks as not complete.
 843   framebuffer_->UnbindRenderbuffer(GL_RENDERBUFFER, renderbuffer1);
 844   EXPECT_FALSE(manager_.IsComplete(framebuffer_));
 845   manager_.MarkAsComplete(framebuffer_);
 846   EXPECT_TRUE(manager_.IsComplete(framebuffer_));
 847   framebuffer_->UnbindTexture(kTarget1, texture2.get());
 848   EXPECT_FALSE(manager_.IsComplete(framebuffer_));
 849 }
 850
 851 TEST_F(FramebufferInfoTest, GetStatus) {
 852   const GLuint kRenderbufferClient1Id = 33;
 853   const GLuint kRenderbufferService1Id = 333;
 854   const GLuint kTextureClient2Id = 34;
 855   const GLuint kTextureService2Id = 334;
 856   const GLenum kTarget1 = GL_TEXTURE_2D;
 857   const GLint kLevel1 = 0;
 858   const GLint kSamples1 = 0;
 859
 860   renderbuffer_manager_.CreateRenderbuffer(
 861       kRenderbufferClient1Id, kRenderbufferService1Id);
 862   Renderbuffer* renderbuffer1 =
 863       renderbuffer_manager_.GetRenderbuffer(kRenderbufferClient1Id);
 864   ASSERT_TRUE(renderbuffer1 != NULL);
 865   texture_manager_->CreateTexture(kTextureClient2Id, kTextureService2Id);
 866   scoped_refptr<TextureRef> texture2(
 867       texture_manager_->GetTexture(kTextureClient2Id));
 868   ASSERT_TRUE(texture2.get() != NULL);
 869   texture_manager_->SetTarget(texture2.get(), GL_TEXTURE_2D);
 870
 871   EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
 872       .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 873       .RetiresOnSaturation();
 874   framebuffer_->GetStatus(texture_manager_.get(), GL_FRAMEBUFFER);
 875
 876   // Check a second call for the same type does not call anything
 877   if (!framebuffer_->AllowFramebufferComboCompleteMapForTesting()) {
 878     EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
 879         .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 880         .RetiresOnSaturation();
 881   }
 882   framebuffer_->GetStatus(texture_manager_.get(), GL_FRAMEBUFFER);
 883
 884   // Check changing the attachments calls CheckFramebufferStatus.
 885   framebuffer_->AttachTexture(
 886       GL_COLOR_ATTACHMENT0, texture2.get(), kTarget1, kLevel1, kSamples1);
 887   EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
 888       .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE)).RetiresOnSaturation();
 889   framebuffer_->GetStatus(texture_manager_.get(), GL_FRAMEBUFFER);
 890
 891   // Check a second call for the same type does not call anything.
 892   if (!framebuffer_->AllowFramebufferComboCompleteMapForTesting()) {
 893     EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_FRAMEBUFFER))
 894         .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 895         .RetiresOnSaturation();
 896   }
 897   framebuffer_->GetStatus(texture_manager_.get(), GL_FRAMEBUFFER);
 898
 899   // Check a second call with a different target calls CheckFramebufferStatus.
 900   EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 901       .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 902       .RetiresOnSaturation();
 903   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 904
 905   // Check a second call for the same type does not call anything.
 906   if (!framebuffer_->AllowFramebufferComboCompleteMapForTesting()) {
 907     EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 908         .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 909         .RetiresOnSaturation();
 910   }
 911   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 912
 913   // Check adding another attachment calls CheckFramebufferStatus.
 914   framebuffer_->AttachRenderbuffer(GL_DEPTH_ATTACHMENT, renderbuffer1);
 915   EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 916       .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 917       .RetiresOnSaturation();
 918   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 919
 920   // Check a second call for the same type does not call anything.
 921   if (!framebuffer_->AllowFramebufferComboCompleteMapForTesting()) {
 922     EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 923         .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 924         .RetiresOnSaturation();
 925   }
 926   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 927
 928   // Check changing the format calls CheckFramebuffferStatus.
 929   TestHelper::SetTexParameteriWithExpectations(gl_.get(),
 930                                                error_state_.get(),
 931                                                texture_manager_.get(),
 932                                                texture2.get(),
 933                                                GL_TEXTURE_WRAP_S,
 934                                                GL_CLAMP_TO_EDGE,
 935                                                GL_NO_ERROR);
 936
 937   EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 938       .WillOnce(Return(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT))
 939       .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 940       .RetiresOnSaturation();
 941   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 942
 943   // Check since it did not return FRAMEBUFFER_COMPLETE that it calls
 944   // CheckFramebufferStatus
 945   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 946
 947   // Check putting it back does not call CheckFramebufferStatus.
 948   if (!framebuffer_->AllowFramebufferComboCompleteMapForTesting()) {
 949     EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 950         .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 951         .RetiresOnSaturation();
 952   }
 953   TestHelper::SetTexParameteriWithExpectations(gl_.get(),
 954                                                error_state_.get(),
 955                                                texture_manager_.get(),
 956                                                texture2.get(),
 957                                                GL_TEXTURE_WRAP_S,
 958                                                GL_REPEAT,
 959                                                GL_NO_ERROR);
 960   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 961
 962   // Check Unbinding does not call CheckFramebufferStatus
 963   framebuffer_->UnbindRenderbuffer(GL_RENDERBUFFER, renderbuffer1);
 964   if (!framebuffer_->AllowFramebufferComboCompleteMapForTesting()) {
 965     EXPECT_CALL(*gl_, CheckFramebufferStatusEXT(GL_READ_FRAMEBUFFER))
 966         .WillOnce(Return(GL_FRAMEBUFFER_COMPLETE))
 967         .RetiresOnSaturation();
 968   }
 969   framebuffer_->GetStatus(texture_manager_.get(), GL_READ_FRAMEBUFFER);
 970 }
 971
 972 }  // namespace gles2
 973 }  // namespace gpu
 974
 975