gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h

   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 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_
   6 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_
   7
   8 #include "gpu/command_buffer/common/gles2_cmd_format.h"
   9 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  10 #include "gpu/command_buffer/service/buffer_manager.h"
  11 #include "gpu/command_buffer/service/cmd_buffer_engine.h"
  12 #include "gpu/command_buffer/service/context_group.h"
  13 #include "gpu/command_buffer/service/framebuffer_manager.h"
  14 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
  15 #include "gpu/command_buffer/service/gles2_cmd_decoder_mock.h"
  16 #include "gpu/command_buffer/service/program_manager.h"
  17 #include "gpu/command_buffer/service/query_manager.h"
  18 #include "gpu/command_buffer/service/renderbuffer_manager.h"
  19 #include "gpu/command_buffer/service/shader_manager.h"
  20 #include "gpu/command_buffer/service/test_helper.h"
  21 #include "gpu/command_buffer/service/texture_manager.h"
  22 #include "gpu/command_buffer/service/vertex_array_manager.h"
  23 #include "testing/gtest/include/gtest/gtest.h"
  24 #include "ui/gl/gl_context_stub_with_extensions.h"
  25 #include "ui/gl/gl_surface_stub.h"
  26 #include "ui/gl/gl_mock.h"
  27
  28 namespace base {
  29 class CommandLine;
  30 }
  31
  32 namespace gpu {
  33 namespace gles2 {
  34
  35 class MemoryTracker;
  36
  37 class GLES2DecoderTestBase : public ::testing::TestWithParam<bool> {
  38  public:
  39   GLES2DecoderTestBase();
  40   virtual ~GLES2DecoderTestBase();
  41
  42   // Template to call glGenXXX functions.
  43   template <typename T>
  44   void GenHelper(GLuint client_id) {
  45     int8 buffer[sizeof(T) + sizeof(client_id)];
  46     T& cmd = *reinterpret_cast<T*>(&buffer);
  47     cmd.Init(1, &client_id);
  48     EXPECT_EQ(error::kNoError,
  49               ExecuteImmediateCmd(cmd, sizeof(client_id)));
  50   }
  51
  52   // This template exists solely so we can specialize it for
  53   // certain commands.
  54   template <typename T, int id>
  55   void SpecializedSetup(bool valid) {
  56   }
  57
  58   template <typename T>
  59   T* GetImmediateAs() {
  60     return reinterpret_cast<T*>(immediate_buffer_);
  61   }
  62
  63   template <typename T, typename Command>
  64   T GetImmediateDataAs(Command* cmd) {
  65     return reinterpret_cast<T>(ImmediateDataAddress(cmd));
  66   }
  67
  68   void ClearSharedMemory() {
  69     engine_->ClearSharedMemory();
  70   }
  71
  72   virtual void SetUp() OVERRIDE;
  73   virtual void TearDown() OVERRIDE;
  74
  75   template <typename T>
  76   error::Error ExecuteCmd(const T& cmd) {
  77     COMPILE_ASSERT(T::kArgFlags == cmd::kFixed, Cmd_kArgFlags_not_kFixed);
  78     return decoder_->DoCommand(cmd.kCmdId,
  79                                ComputeNumEntries(sizeof(cmd)) - 1,
  80                                &cmd);
  81   }
  82
  83   template <typename T>
  84   error::Error ExecuteImmediateCmd(const T& cmd, size_t data_size) {
  85     COMPILE_ASSERT(T::kArgFlags == cmd::kAtLeastN, Cmd_kArgFlags_not_kAtLeastN);
  86     return decoder_->DoCommand(cmd.kCmdId,
  87                                ComputeNumEntries(sizeof(cmd) + data_size) - 1,
  88                                &cmd);
  89   }
  90
  91   template <typename T>
  92   T GetSharedMemoryAs() {
  93     return reinterpret_cast<T>(shared_memory_address_);
  94   }
  95
  96   template <typename T>
  97   T GetSharedMemoryAsWithOffset(uint32 offset) {
  98     void* ptr = reinterpret_cast<int8*>(shared_memory_address_) + offset;
  99     return reinterpret_cast<T>(ptr);
 100   }
 101
 102   IdAllocatorInterface* GetIdAllocator(GLuint namespace_id) {
 103     return group_->GetIdAllocator(namespace_id);
 104   }
 105
 106   Buffer* GetBuffer(GLuint service_id) {
 107     return group_->buffer_manager()->GetBuffer(service_id);
 108   }
 109
 110   Framebuffer* GetFramebuffer(GLuint service_id) {
 111     return group_->framebuffer_manager()->GetFramebuffer(service_id);
 112   }
 113
 114   Renderbuffer* GetRenderbuffer(
 115       GLuint service_id) {
 116     return group_->renderbuffer_manager()->GetRenderbuffer(service_id);
 117   }
 118
 119   TextureRef* GetTexture(GLuint client_id) {
 120     return group_->texture_manager()->GetTexture(client_id);
 121   }
 122
 123   Shader* GetShader(GLuint client_id) {
 124     return group_->shader_manager()->GetShader(client_id);
 125   }
 126
 127   Program* GetProgram(GLuint client_id) {
 128     return group_->program_manager()->GetProgram(client_id);
 129   }
 130
 131   QueryManager::Query* GetQueryInfo(GLuint client_id) {
 132     return decoder_->GetQueryManager()->GetQuery(client_id);
 133   }
 134
 135   // This name doesn't match the underlying function, but doing it this way
 136   // prevents the need to special-case the unit test generation
 137   VertexAttribManager* GetVertexArrayInfo(GLuint client_id) {
 138     return decoder_->GetVertexArrayManager()->GetVertexAttribManager(client_id);
 139   }
 140
 141   ProgramManager* program_manager() {
 142     return group_->program_manager();
 143   }
 144
 145   void DoCreateProgram(GLuint client_id, GLuint service_id);
 146   void DoCreateShader(GLenum shader_type, GLuint client_id, GLuint service_id);
 147
 148   void SetBucketAsCString(uint32 bucket_id, const char* str);
 149
 150   void set_memory_tracker(MemoryTracker* memory_tracker) {
 151     memory_tracker_ = memory_tracker;
 152   }
 153
 154   struct InitState {
 155     InitState();
 156
 157     std::string extensions;
 158     std::string gl_version;
 159     bool has_alpha;
 160     bool has_depth;
 161     bool has_stencil;
 162     bool request_alpha;
 163     bool request_depth;
 164     bool request_stencil;
 165     bool bind_generates_resource;
 166     bool lose_context_when_out_of_memory;
 167     bool use_native_vao;  // default is true.
 168   };
 169
 170   void InitDecoder(const InitState& init);
 171   void InitDecoderWithCommandLine(const InitState& init,
 172                                   const base::CommandLine* command_line);
 173
 174   void ResetDecoder();
 175
 176   const ContextGroup& group() const {
 177     return *group_.get();
 178   }
 179
 180   ::testing::StrictMock< ::gfx::MockGLInterface>* GetGLMock() const {
 181     return gl_.get();
 182   }
 183
 184   GLES2Decoder* GetDecoder() const {
 185     return decoder_.get();
 186   }
 187
 188   typedef TestHelper::AttribInfo AttribInfo;
 189   typedef TestHelper::UniformInfo UniformInfo;
 190
 191   void SetupShader(
 192       AttribInfo* attribs, size_t num_attribs,
 193       UniformInfo* uniforms, size_t num_uniforms,
 194       GLuint client_id, GLuint service_id,
 195       GLuint vertex_shader_client_id, GLuint vertex_shader_service_id,
 196       GLuint fragment_shader_client_id, GLuint fragment_shader_service_id);
 197
 198   void SetupInitCapabilitiesExpectations();
 199   void SetupInitStateExpectations();
 200   void ExpectEnableDisable(GLenum cap, bool enable);
 201
 202   // Setups up a shader for testing glUniform.
 203   void SetupShaderForUniform(GLenum uniform_type);
 204   void SetupDefaultProgram();
 205   void SetupCubemapProgram();
 206   void SetupSamplerExternalProgram();
 207   void SetupTexture();
 208
 209   // Note that the error is returned as GLint instead of GLenum.
 210   // This is because there is a mismatch in the types of GLenum and
 211   // the error values GL_NO_ERROR, GL_INVALID_ENUM, etc. GLenum is
 212   // typedef'd as unsigned int while the error values are defined as
 213   // integers. This is problematic for template functions such as
 214   // EXPECT_EQ that expect both types to be the same.
 215   GLint GetGLError();
 216
 217   void DoBindBuffer(GLenum target, GLuint client_id, GLuint service_id);
 218   void DoBindFramebuffer(GLenum target, GLuint client_id, GLuint service_id);
 219   void DoBindRenderbuffer(GLenum target, GLuint client_id, GLuint service_id);
 220   void DoRenderbufferStorageMultisampleCHROMIUM(GLenum target,
 221                                                 GLsizei samples,
 222                                                 GLenum internal_format,
 223                                                 GLenum gl_format,
 224                                                 GLsizei width,
 225                                                 GLsizei height);
 226   void RestoreRenderbufferBindings();
 227   void EnsureRenderbufferBound(bool expect_bind);
 228   void DoBindTexture(GLenum target, GLuint client_id, GLuint service_id);
 229   void DoBindVertexArrayOES(GLuint client_id, GLuint service_id);
 230
 231   bool DoIsBuffer(GLuint client_id);
 232   bool DoIsFramebuffer(GLuint client_id);
 233   bool DoIsProgram(GLuint client_id);
 234   bool DoIsRenderbuffer(GLuint client_id);
 235   bool DoIsShader(GLuint client_id);
 236   bool DoIsTexture(GLuint client_id);
 237
 238   void DoDeleteBuffer(GLuint client_id, GLuint service_id);
 239   void DoDeleteFramebuffer(
 240       GLuint client_id, GLuint service_id,
 241       bool reset_draw, GLenum draw_target, GLuint draw_id,
 242       bool reset_read, GLenum read_target, GLuint read_id);
 243   void DoDeleteProgram(GLuint client_id, GLuint service_id);
 244   void DoDeleteRenderbuffer(GLuint client_id, GLuint service_id);
 245   void DoDeleteShader(GLuint client_id, GLuint service_id);
 246   void DoDeleteTexture(GLuint client_id, GLuint service_id);
 247
 248   void DoCompressedTexImage2D(
 249       GLenum target, GLint level, GLenum format,
 250       GLsizei width, GLsizei height, GLint border,
 251       GLsizei size, uint32 bucket_id);
 252   void DoTexImage2D(
 253       GLenum target, GLint level, GLenum internal_format,
 254       GLsizei width, GLsizei height, GLint border,
 255       GLenum format, GLenum type,
 256       uint32 shared_memory_id, uint32 shared_memory_offset);
 257   void DoTexImage2DConvertInternalFormat(
 258       GLenum target, GLint level, GLenum requested_internal_format,
 259       GLsizei width, GLsizei height, GLint border,
 260       GLenum format, GLenum type,
 261       uint32 shared_memory_id, uint32 shared_memory_offset,
 262       GLenum expected_internal_format);
 263   void DoRenderbufferStorage(
 264       GLenum target, GLenum internal_format, GLenum actual_format,
 265       GLsizei width, GLsizei height, GLenum error);
 266   void DoFramebufferRenderbuffer(
 267       GLenum target,
 268       GLenum attachment,
 269       GLenum renderbuffer_target,
 270       GLuint renderbuffer_client_id,
 271       GLuint renderbuffer_service_id,
 272       GLenum error);
 273   void DoFramebufferTexture2D(
 274       GLenum target, GLenum attachment, GLenum tex_target,
 275       GLuint texture_client_id, GLuint texture_service_id,
 276       GLint level, GLenum error);
 277   void DoVertexAttribPointer(
 278       GLuint index, GLint size, GLenum type, GLsizei stride, GLuint offset);
 279   void DoVertexAttribDivisorANGLE(GLuint index, GLuint divisor);
 280
 281   void DoEnableDisable(GLenum cap, bool enable);
 282
 283   void DoEnableVertexAttribArray(GLint index);
 284
 285   void DoBufferData(GLenum target, GLsizei size);
 286
 287   void DoBufferSubData(
 288       GLenum target, GLint offset, GLsizei size, const void* data);
 289
 290   void SetupVertexBuffer();
 291   void SetupAllNeededVertexBuffers();
 292
 293   void SetupIndexBuffer();
 294
 295   void DeleteVertexBuffer();
 296
 297   void DeleteIndexBuffer();
 298
 299   void SetupClearTextureExpectations(
 300       GLuint service_id,
 301       GLuint old_service_id,
 302       GLenum bind_target,
 303       GLenum target,
 304       GLint level,
 305       GLenum internal_format,
 306       GLenum format,
 307       GLenum type,
 308       GLsizei width,
 309       GLsizei height);
 310
 311   void SetupExpectationsForRestoreClearState(
 312       GLclampf restore_red,
 313       GLclampf restore_green,
 314       GLclampf restore_blue,
 315       GLclampf restore_alpha,
 316       GLuint restore_stencil,
 317       GLclampf restore_depth,
 318       bool restore_scissor_test);
 319
 320   void SetupExpectationsForFramebufferClearing(
 321       GLenum target,
 322       GLuint clear_bits,
 323       GLclampf restore_red,
 324       GLclampf restore_green,
 325       GLclampf restore_blue,
 326       GLclampf restore_alpha,
 327       GLuint restore_stencil,
 328       GLclampf restore_depth,
 329       bool restore_scissor_test);
 330
 331   void SetupExpectationsForFramebufferClearingMulti(
 332       GLuint read_framebuffer_service_id,
 333       GLuint draw_framebuffer_service_id,
 334       GLenum target,
 335       GLuint clear_bits,
 336       GLclampf restore_red,
 337       GLclampf restore_green,
 338       GLclampf restore_blue,
 339       GLclampf restore_alpha,
 340       GLuint restore_stencil,
 341       GLclampf restore_depth,
 342       bool restore_scissor_test);
 343
 344   void SetupExpectationsForDepthMask(bool mask);
 345   void SetupExpectationsForEnableDisable(GLenum cap, bool enable);
 346   void SetupExpectationsForColorMask(bool red,
 347                                      bool green,
 348                                      bool blue,
 349                                      bool alpha);
 350   void SetupExpectationsForStencilMask(uint32 front_mask,
 351                                        uint32 back_mask);
 352
 353   void SetupExpectationsForApplyingDirtyState(
 354       bool framebuffer_is_rgb,
 355       bool framebuffer_has_depth,
 356       bool framebuffer_has_stencil,
 357       GLuint color_bits,  // NOTE! bits are 0x1000, 0x0100, 0x0010, and 0x0001
 358       bool depth_mask,
 359       bool depth_enabled,
 360       GLuint front_stencil_mask,
 361       GLuint back_stencil_mask,
 362       bool stencil_enabled);
 363
 364   void SetupExpectationsForApplyingDefaultDirtyState();
 365
 366   void AddExpectationsForSimulatedAttrib0WithError(
 367       GLsizei num_vertices, GLuint buffer_id, GLenum error);
 368
 369   void AddExpectationsForSimulatedAttrib0(
 370       GLsizei num_vertices, GLuint buffer_id);
 371
 372   void AddExpectationsForGenVertexArraysOES();
 373   void AddExpectationsForDeleteVertexArraysOES();
 374   void AddExpectationsForDeleteBoundVertexArraysOES();
 375   void AddExpectationsForBindVertexArrayOES();
 376   void AddExpectationsForRestoreAttribState(GLuint attrib);
 377
 378   GLvoid* BufferOffset(unsigned i) {
 379     return static_cast<int8 *>(NULL)+(i);
 380   }
 381
 382   template <typename Command, typename Result>
 383   bool IsObjectHelper(GLuint client_id) {
 384     Result* result = static_cast<Result*>(shared_memory_address_);
 385     Command cmd;
 386     cmd.Init(client_id, kSharedMemoryId, kSharedMemoryOffset);
 387     EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
 388     bool isObject = static_cast<bool>(*result);
 389     EXPECT_EQ(GL_NO_ERROR, GetGLError());
 390     return isObject;
 391   }
 392
 393  protected:
 394   static const int kBackBufferWidth = 128;
 395   static const int kBackBufferHeight = 64;
 396
 397   static const GLint kMaxTextureSize = 2048;
 398   static const GLint kMaxCubeMapTextureSize = 256;
 399   static const GLint kNumVertexAttribs = 16;
 400   static const GLint kNumTextureUnits = 8;
 401   static const GLint kMaxTextureImageUnits = 8;
 402   static const GLint kMaxVertexTextureImageUnits = 2;
 403   static const GLint kMaxFragmentUniformVectors = 16;
 404   static const GLint kMaxVaryingVectors = 8;
 405   static const GLint kMaxVertexUniformVectors = 128;
 406   static const GLint kMaxViewportWidth = 8192;
 407   static const GLint kMaxViewportHeight = 8192;
 408
 409   static const GLint kViewportX = 0;
 410   static const GLint kViewportY = 0;
 411   static const GLint kViewportWidth = kBackBufferWidth;
 412   static const GLint kViewportHeight = kBackBufferHeight;
 413
 414   static const GLuint kServiceAttrib0BufferId = 801;
 415   static const GLuint kServiceFixedAttribBufferId = 802;
 416
 417   static const GLuint kServiceBufferId = 301;
 418   static const GLuint kServiceFramebufferId = 302;
 419   static const GLuint kServiceRenderbufferId = 303;
 420   static const GLuint kServiceTextureId = 304;
 421   static const GLuint kServiceProgramId = 305;
 422   static const GLuint kServiceShaderId = 306;
 423   static const GLuint kServiceElementBufferId = 308;
 424   static const GLuint kServiceQueryId = 309;
 425   static const GLuint kServiceVertexArrayId = 310;
 426
 427   static const int32 kSharedMemoryId = 401;
 428   static const size_t kSharedBufferSize = 2048;
 429   static const uint32 kSharedMemoryOffset = 132;
 430   static const int32 kInvalidSharedMemoryId = 402;
 431   static const uint32 kInvalidSharedMemoryOffset = kSharedBufferSize + 1;
 432   static const uint32 kInitialResult = 0xBDBDBDBDu;
 433   static const uint8 kInitialMemoryValue = 0xBDu;
 434
 435   static const uint32 kNewClientId = 501;
 436   static const uint32 kNewServiceId = 502;
 437   static const uint32 kInvalidClientId = 601;
 438
 439   static const GLuint kServiceVertexShaderId = 321;
 440   static const GLuint kServiceFragmentShaderId = 322;
 441
 442   static const GLuint kServiceCopyTextureChromiumShaderId = 701;
 443   static const GLuint kServiceCopyTextureChromiumProgramId = 721;
 444
 445   static const GLuint kServiceCopyTextureChromiumTextureBufferId = 751;
 446   static const GLuint kServiceCopyTextureChromiumVertexBufferId = 752;
 447   static const GLuint kServiceCopyTextureChromiumFBOId = 753;
 448   static const GLuint kServiceCopyTextureChromiumPositionAttrib = 761;
 449   static const GLuint kServiceCopyTextureChromiumTexAttrib = 762;
 450   static const GLuint kServiceCopyTextureChromiumSamplerLocation = 763;
 451
 452   static const GLsizei kNumVertices = 100;
 453   static const GLsizei kNumIndices = 10;
 454   static const int kValidIndexRangeStart = 1;
 455   static const int kValidIndexRangeCount = 7;
 456   static const int kInvalidIndexRangeStart = 0;
 457   static const int kInvalidIndexRangeCount = 7;
 458   static const int kOutOfRangeIndexRangeEnd = 10;
 459   static const GLuint kMaxValidIndex = 7;
 460
 461   static const GLint kMaxAttribLength = 10;
 462   static const char* kAttrib1Name;
 463   static const char* kAttrib2Name;
 464   static const char* kAttrib3Name;
 465   static const GLint kAttrib1Size = 1;
 466   static const GLint kAttrib2Size = 1;
 467   static const GLint kAttrib3Size = 1;
 468   static const GLint kAttrib1Location = 0;
 469   static const GLint kAttrib2Location = 1;
 470   static const GLint kAttrib3Location = 2;
 471   static const GLenum kAttrib1Type = GL_FLOAT_VEC4;
 472   static const GLenum kAttrib2Type = GL_FLOAT_VEC2;
 473   static const GLenum kAttrib3Type = GL_FLOAT_VEC3;
 474   static const GLint kInvalidAttribLocation = 30;
 475   static const GLint kBadAttribIndex = kNumVertexAttribs;
 476
 477   static const GLint kMaxUniformLength = 12;
 478   static const char* kUniform1Name;
 479   static const char* kUniform2Name;
 480   static const char* kUniform3Name;
 481   static const GLint kUniform1Size = 1;
 482   static const GLint kUniform2Size = 3;
 483   static const GLint kUniform3Size = 2;
 484   static const GLint kUniform1RealLocation = 3;
 485   static const GLint kUniform2RealLocation = 10;
 486   static const GLint kUniform2ElementRealLocation = 12;
 487   static const GLint kUniform3RealLocation = 20;
 488   static const GLint kUniform1FakeLocation = 0;               // These are
 489   static const GLint kUniform2FakeLocation = 1;               // hardcoded
 490   static const GLint kUniform2ElementFakeLocation = 0x10001;  // to match
 491   static const GLint kUniform3FakeLocation = 2;               // ProgramManager.
 492   static const GLint kUniform1DesiredLocation = -1;
 493   static const GLint kUniform2DesiredLocation = -1;
 494   static const GLint kUniform3DesiredLocation = -1;
 495   static const GLenum kUniform1Type = GL_SAMPLER_2D;
 496   static const GLenum kUniform2Type = GL_INT_VEC2;
 497   static const GLenum kUniform3Type = GL_FLOAT_VEC3;
 498   static const GLenum kUniformSamplerExternalType = GL_SAMPLER_EXTERNAL_OES;
 499   static const GLenum kUniformCubemapType = GL_SAMPLER_CUBE;
 500   static const GLint kInvalidUniformLocation = 30;
 501   static const GLint kBadUniformIndex = 1000;
 502
 503   // Use StrictMock to make 100% sure we know how GL will be called.
 504   scoped_ptr< ::testing::StrictMock< ::gfx::MockGLInterface> > gl_;
 505   scoped_refptr<gfx::GLSurfaceStub> surface_;
 506   scoped_refptr<gfx::GLContextStubWithExtensions> context_;
 507   scoped_ptr<MockGLES2Decoder> mock_decoder_;
 508   scoped_ptr<GLES2Decoder> decoder_;
 509   MemoryTracker* memory_tracker_;
 510
 511   GLuint client_buffer_id_;
 512   GLuint client_framebuffer_id_;
 513   GLuint client_program_id_;
 514   GLuint client_renderbuffer_id_;
 515   GLuint client_shader_id_;
 516   GLuint client_texture_id_;
 517   GLuint client_element_buffer_id_;
 518   GLuint client_vertex_shader_id_;
 519   GLuint client_fragment_shader_id_;
 520   GLuint client_query_id_;
 521   GLuint client_vertexarray_id_;
 522
 523   uint32 shared_memory_id_;
 524   uint32 shared_memory_offset_;
 525   void* shared_memory_address_;
 526   void* shared_memory_base_;
 527
 528   GLuint service_renderbuffer_id_;
 529   bool service_renderbuffer_valid_;
 530
 531   uint32 immediate_buffer_[64];
 532
 533   const bool ignore_cached_state_for_test_;
 534   bool cached_color_mask_red_;
 535   bool cached_color_mask_green_;
 536   bool cached_color_mask_blue_;
 537   bool cached_color_mask_alpha_;
 538   bool cached_depth_mask_;
 539   uint32 cached_stencil_front_mask_;
 540   uint32 cached_stencil_back_mask_;
 541
 542   struct EnableFlags {
 543     EnableFlags();
 544     bool cached_blend;
 545     bool cached_cull_face;
 546     bool cached_depth_test;
 547     bool cached_dither;
 548     bool cached_polygon_offset_fill;
 549     bool cached_sample_alpha_to_coverage;
 550     bool cached_sample_coverage;
 551     bool cached_scissor_test;
 552     bool cached_stencil_test;
 553   };
 554
 555   EnableFlags enable_flags_;
 556
 557  private:
 558   class MockCommandBufferEngine : public CommandBufferEngine {
 559    public:
 560     MockCommandBufferEngine();
 561
 562     virtual ~MockCommandBufferEngine();
 563
 564     virtual scoped_refptr<gpu::Buffer> GetSharedMemoryBuffer(int32 shm_id)
 565         OVERRIDE;
 566
 567     void ClearSharedMemory() {
 568       memset(valid_buffer_->memory(), kInitialMemoryValue, kSharedBufferSize);
 569     }
 570
 571     virtual void set_token(int32 token) OVERRIDE;
 572
 573     virtual bool SetGetBuffer(int32 /* transfer_buffer_id */) OVERRIDE;
 574
 575     // Overridden from CommandBufferEngine.
 576     virtual bool SetGetOffset(int32 offset) OVERRIDE;
 577
 578     // Overridden from CommandBufferEngine.
 579     virtual int32 GetGetOffset() OVERRIDE;
 580
 581    private:
 582     scoped_refptr<gpu::Buffer> valid_buffer_;
 583     scoped_refptr<gpu::Buffer> invalid_buffer_;
 584   };
 585
 586   // MockGLStates is used to track GL states and emulate driver
 587   // behaviors on top of MockGLInterface.
 588   class MockGLStates {
 589    public:
 590     MockGLStates()
 591         : bound_array_buffer_object_(0),
 592           bound_vertex_array_object_(0) {
 593     }
 594
 595     ~MockGLStates() {
 596     }
 597
 598     void OnBindArrayBuffer(GLuint id) {
 599       bound_array_buffer_object_ = id;
 600     }
 601
 602     void OnBindVertexArrayOES(GLuint id) {
 603       bound_vertex_array_object_ = id;
 604     }
 605
 606     void OnVertexAttribNullPointer() {
 607       // When a vertex array object is bound, some drivers (AMD Linux,
 608       // Qualcomm, etc.) have a bug where it incorrectly generates an
 609       // GL_INVALID_OPERATION on glVertexAttribPointer() if pointer
 610       // is NULL, no buffer is bound on GL_ARRAY_BUFFER.
 611       // Make sure we don't trigger this bug.
 612       if (bound_vertex_array_object_ != 0)
 613         EXPECT_TRUE(bound_array_buffer_object_ != 0);
 614     }
 615
 616    private:
 617     GLuint bound_array_buffer_object_;
 618     GLuint bound_vertex_array_object_;
 619   };  // class MockGLStates
 620
 621   void AddExpectationsForVertexAttribManager();
 622   void SetupMockGLBehaviors();
 623
 624   scoped_ptr< ::testing::StrictMock<MockCommandBufferEngine> > engine_;
 625   scoped_refptr<ContextGroup> group_;
 626   MockGLStates gl_states_;
 627 };
 628
 629 class GLES2DecoderWithShaderTestBase : public GLES2DecoderTestBase {
 630  public:
 631   GLES2DecoderWithShaderTestBase()
 632       : GLES2DecoderTestBase() {
 633   }
 634
 635  protected:
 636   virtual void SetUp() OVERRIDE;
 637   virtual void TearDown() OVERRIDE;
 638
 639 };
 640
 641 // SpecializedSetup specializations that are needed in multiple unittest files.
 642 template <>
 643 void GLES2DecoderTestBase::SpecializedSetup<cmds::LinkProgram, 0>(bool valid);
 644
 645 }  // namespace gles2
 646 }  // namespace gpu
 647
 648 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_