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 DoBindTexture(GLenum target, GLuint client_id, GLuint service_id);
 221   void DoBindVertexArrayOES(GLuint client_id, GLuint service_id);
 222
 223   bool DoIsBuffer(GLuint client_id);
 224   bool DoIsFramebuffer(GLuint client_id);
 225   bool DoIsProgram(GLuint client_id);
 226   bool DoIsRenderbuffer(GLuint client_id);
 227   bool DoIsShader(GLuint client_id);
 228   bool DoIsTexture(GLuint client_id);
 229
 230   void DoDeleteBuffer(GLuint client_id, GLuint service_id);
 231   void DoDeleteFramebuffer(
 232       GLuint client_id, GLuint service_id,
 233       bool reset_draw, GLenum draw_target, GLuint draw_id,
 234       bool reset_read, GLenum read_target, GLuint read_id);
 235   void DoDeleteProgram(GLuint client_id, GLuint service_id);
 236   void DoDeleteRenderbuffer(GLuint client_id, GLuint service_id);
 237   void DoDeleteShader(GLuint client_id, GLuint service_id);
 238   void DoDeleteTexture(GLuint client_id, GLuint service_id);
 239
 240   void DoCompressedTexImage2D(
 241       GLenum target, GLint level, GLenum format,
 242       GLsizei width, GLsizei height, GLint border,
 243       GLsizei size, uint32 bucket_id);
 244   void DoTexImage2D(
 245       GLenum target, GLint level, GLenum internal_format,
 246       GLsizei width, GLsizei height, GLint border,
 247       GLenum format, GLenum type,
 248       uint32 shared_memory_id, uint32 shared_memory_offset);
 249   void DoTexImage2DConvertInternalFormat(
 250       GLenum target, GLint level, GLenum requested_internal_format,
 251       GLsizei width, GLsizei height, GLint border,
 252       GLenum format, GLenum type,
 253       uint32 shared_memory_id, uint32 shared_memory_offset,
 254       GLenum expected_internal_format);
 255   void DoRenderbufferStorage(
 256       GLenum target, GLenum internal_format, GLenum actual_format,
 257       GLsizei width, GLsizei height, GLenum error);
 258   void DoFramebufferRenderbuffer(
 259       GLenum target,
 260       GLenum attachment,
 261       GLenum renderbuffer_target,
 262       GLuint renderbuffer_client_id,
 263       GLuint renderbuffer_service_id,
 264       GLenum error);
 265   void DoFramebufferTexture2D(
 266       GLenum target, GLenum attachment, GLenum tex_target,
 267       GLuint texture_client_id, GLuint texture_service_id,
 268       GLint level, GLenum error);
 269   void DoVertexAttribPointer(
 270       GLuint index, GLint size, GLenum type, GLsizei stride, GLuint offset);
 271   void DoVertexAttribDivisorANGLE(GLuint index, GLuint divisor);
 272
 273   void DoEnableDisable(GLenum cap, bool enable);
 274
 275   void DoEnableVertexAttribArray(GLint index);
 276
 277   void DoBufferData(GLenum target, GLsizei size);
 278
 279   void DoBufferSubData(
 280       GLenum target, GLint offset, GLsizei size, const void* data);
 281
 282   void SetupVertexBuffer();
 283   void SetupAllNeededVertexBuffers();
 284
 285   void SetupIndexBuffer();
 286
 287   void DeleteVertexBuffer();
 288
 289   void DeleteIndexBuffer();
 290
 291   void SetupClearTextureExpectations(
 292       GLuint service_id,
 293       GLuint old_service_id,
 294       GLenum bind_target,
 295       GLenum target,
 296       GLint level,
 297       GLenum internal_format,
 298       GLenum format,
 299       GLenum type,
 300       GLsizei width,
 301       GLsizei height);
 302
 303   void SetupExpectationsForRestoreClearState(
 304       GLclampf restore_red,
 305       GLclampf restore_green,
 306       GLclampf restore_blue,
 307       GLclampf restore_alpha,
 308       GLuint restore_stencil,
 309       GLclampf restore_depth,
 310       bool restore_scissor_test);
 311
 312   void SetupExpectationsForFramebufferClearing(
 313       GLenum target,
 314       GLuint clear_bits,
 315       GLclampf restore_red,
 316       GLclampf restore_green,
 317       GLclampf restore_blue,
 318       GLclampf restore_alpha,
 319       GLuint restore_stencil,
 320       GLclampf restore_depth,
 321       bool restore_scissor_test);
 322
 323   void SetupExpectationsForFramebufferClearingMulti(
 324       GLuint read_framebuffer_service_id,
 325       GLuint draw_framebuffer_service_id,
 326       GLenum target,
 327       GLuint clear_bits,
 328       GLclampf restore_red,
 329       GLclampf restore_green,
 330       GLclampf restore_blue,
 331       GLclampf restore_alpha,
 332       GLuint restore_stencil,
 333       GLclampf restore_depth,
 334       bool restore_scissor_test);
 335
 336   void SetupExpectationsForDepthMask(bool mask);
 337   void SetupExpectationsForEnableDisable(GLenum cap, bool enable);
 338   void SetupExpectationsForColorMask(bool red,
 339                                      bool green,
 340                                      bool blue,
 341                                      bool alpha);
 342   void SetupExpectationsForStencilMask(uint32 front_mask,
 343                                        uint32 back_mask);
 344
 345   void SetupExpectationsForApplyingDirtyState(
 346       bool framebuffer_is_rgb,
 347       bool framebuffer_has_depth,
 348       bool framebuffer_has_stencil,
 349       GLuint color_bits,  // NOTE! bits are 0x1000, 0x0100, 0x0010, and 0x0001
 350       bool depth_mask,
 351       bool depth_enabled,
 352       GLuint front_stencil_mask,
 353       GLuint back_stencil_mask,
 354       bool stencil_enabled);
 355
 356   void SetupExpectationsForApplyingDefaultDirtyState();
 357
 358   void AddExpectationsForSimulatedAttrib0WithError(
 359       GLsizei num_vertices, GLuint buffer_id, GLenum error);
 360
 361   void AddExpectationsForSimulatedAttrib0(
 362       GLsizei num_vertices, GLuint buffer_id);
 363
 364   void AddExpectationsForGenVertexArraysOES();
 365   void AddExpectationsForDeleteVertexArraysOES();
 366   void AddExpectationsForDeleteBoundVertexArraysOES();
 367   void AddExpectationsForBindVertexArrayOES();
 368   void AddExpectationsForRestoreAttribState(GLuint attrib);
 369
 370   GLvoid* BufferOffset(unsigned i) {
 371     return static_cast<int8 *>(NULL)+(i);
 372   }
 373
 374   template <typename Command, typename Result>
 375   bool IsObjectHelper(GLuint client_id) {
 376     Result* result = static_cast<Result*>(shared_memory_address_);
 377     Command cmd;
 378     cmd.Init(client_id, kSharedMemoryId, kSharedMemoryOffset);
 379     EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
 380     bool isObject = static_cast<bool>(*result);
 381     EXPECT_EQ(GL_NO_ERROR, GetGLError());
 382     return isObject;
 383   }
 384
 385  protected:
 386   static const int kBackBufferWidth = 128;
 387   static const int kBackBufferHeight = 64;
 388
 389   static const GLint kMaxTextureSize = 2048;
 390   static const GLint kMaxCubeMapTextureSize = 256;
 391   static const GLint kNumVertexAttribs = 16;
 392   static const GLint kNumTextureUnits = 8;
 393   static const GLint kMaxTextureImageUnits = 8;
 394   static const GLint kMaxVertexTextureImageUnits = 2;
 395   static const GLint kMaxFragmentUniformVectors = 16;
 396   static const GLint kMaxVaryingVectors = 8;
 397   static const GLint kMaxVertexUniformVectors = 128;
 398   static const GLint kMaxViewportWidth = 8192;
 399   static const GLint kMaxViewportHeight = 8192;
 400
 401   static const GLint kViewportX = 0;
 402   static const GLint kViewportY = 0;
 403   static const GLint kViewportWidth = kBackBufferWidth;
 404   static const GLint kViewportHeight = kBackBufferHeight;
 405
 406   static const GLuint kServiceAttrib0BufferId = 801;
 407   static const GLuint kServiceFixedAttribBufferId = 802;
 408
 409   static const GLuint kServiceBufferId = 301;
 410   static const GLuint kServiceFramebufferId = 302;
 411   static const GLuint kServiceRenderbufferId = 303;
 412   static const GLuint kServiceTextureId = 304;
 413   static const GLuint kServiceProgramId = 305;
 414   static const GLuint kServiceShaderId = 306;
 415   static const GLuint kServiceElementBufferId = 308;
 416   static const GLuint kServiceQueryId = 309;
 417   static const GLuint kServiceVertexArrayId = 310;
 418
 419   static const int32 kSharedMemoryId = 401;
 420   static const size_t kSharedBufferSize = 2048;
 421   static const uint32 kSharedMemoryOffset = 132;
 422   static const int32 kInvalidSharedMemoryId = 402;
 423   static const uint32 kInvalidSharedMemoryOffset = kSharedBufferSize + 1;
 424   static const uint32 kInitialResult = 0xBDBDBDBDu;
 425   static const uint8 kInitialMemoryValue = 0xBDu;
 426
 427   static const uint32 kNewClientId = 501;
 428   static const uint32 kNewServiceId = 502;
 429   static const uint32 kInvalidClientId = 601;
 430
 431   static const GLuint kServiceVertexShaderId = 321;
 432   static const GLuint kServiceFragmentShaderId = 322;
 433
 434   static const GLuint kServiceCopyTextureChromiumShaderId = 701;
 435   static const GLuint kServiceCopyTextureChromiumProgramId = 721;
 436
 437   static const GLuint kServiceCopyTextureChromiumTextureBufferId = 751;
 438   static const GLuint kServiceCopyTextureChromiumVertexBufferId = 752;
 439   static const GLuint kServiceCopyTextureChromiumFBOId = 753;
 440   static const GLuint kServiceCopyTextureChromiumPositionAttrib = 761;
 441   static const GLuint kServiceCopyTextureChromiumTexAttrib = 762;
 442   static const GLuint kServiceCopyTextureChromiumSamplerLocation = 763;
 443
 444   static const GLsizei kNumVertices = 100;
 445   static const GLsizei kNumIndices = 10;
 446   static const int kValidIndexRangeStart = 1;
 447   static const int kValidIndexRangeCount = 7;
 448   static const int kInvalidIndexRangeStart = 0;
 449   static const int kInvalidIndexRangeCount = 7;
 450   static const int kOutOfRangeIndexRangeEnd = 10;
 451   static const GLuint kMaxValidIndex = 7;
 452
 453   static const GLint kMaxAttribLength = 10;
 454   static const char* kAttrib1Name;
 455   static const char* kAttrib2Name;
 456   static const char* kAttrib3Name;
 457   static const GLint kAttrib1Size = 1;
 458   static const GLint kAttrib2Size = 1;
 459   static const GLint kAttrib3Size = 1;
 460   static const GLint kAttrib1Location = 0;
 461   static const GLint kAttrib2Location = 1;
 462   static const GLint kAttrib3Location = 2;
 463   static const GLenum kAttrib1Type = GL_FLOAT_VEC4;
 464   static const GLenum kAttrib2Type = GL_FLOAT_VEC2;
 465   static const GLenum kAttrib3Type = GL_FLOAT_VEC3;
 466   static const GLint kInvalidAttribLocation = 30;
 467   static const GLint kBadAttribIndex = kNumVertexAttribs;
 468
 469   static const GLint kMaxUniformLength = 12;
 470   static const char* kUniform1Name;
 471   static const char* kUniform2Name;
 472   static const char* kUniform3Name;
 473   static const GLint kUniform1Size = 1;
 474   static const GLint kUniform2Size = 3;
 475   static const GLint kUniform3Size = 2;
 476   static const GLint kUniform1RealLocation = 3;
 477   static const GLint kUniform2RealLocation = 10;
 478   static const GLint kUniform2ElementRealLocation = 12;
 479   static const GLint kUniform3RealLocation = 20;
 480   static const GLint kUniform1FakeLocation = 0;               // These are
 481   static const GLint kUniform2FakeLocation = 1;               // hardcoded
 482   static const GLint kUniform2ElementFakeLocation = 0x10001;  // to match
 483   static const GLint kUniform3FakeLocation = 2;               // ProgramManager.
 484   static const GLint kUniform1DesiredLocation = -1;
 485   static const GLint kUniform2DesiredLocation = -1;
 486   static const GLint kUniform3DesiredLocation = -1;
 487   static const GLenum kUniform1Type = GL_SAMPLER_2D;
 488   static const GLenum kUniform2Type = GL_INT_VEC2;
 489   static const GLenum kUniform3Type = GL_FLOAT_VEC3;
 490   static const GLenum kUniformSamplerExternalType = GL_SAMPLER_EXTERNAL_OES;
 491   static const GLenum kUniformCubemapType = GL_SAMPLER_CUBE;
 492   static const GLint kInvalidUniformLocation = 30;
 493   static const GLint kBadUniformIndex = 1000;
 494
 495   // Use StrictMock to make 100% sure we know how GL will be called.
 496   scoped_ptr< ::testing::StrictMock< ::gfx::MockGLInterface> > gl_;
 497   scoped_refptr<gfx::GLSurfaceStub> surface_;
 498   scoped_refptr<gfx::GLContextStubWithExtensions> context_;
 499   scoped_ptr<MockGLES2Decoder> mock_decoder_;
 500   scoped_ptr<GLES2Decoder> decoder_;
 501   MemoryTracker* memory_tracker_;
 502
 503   GLuint client_buffer_id_;
 504   GLuint client_framebuffer_id_;
 505   GLuint client_program_id_;
 506   GLuint client_renderbuffer_id_;
 507   GLuint client_shader_id_;
 508   GLuint client_texture_id_;
 509   GLuint client_element_buffer_id_;
 510   GLuint client_vertex_shader_id_;
 511   GLuint client_fragment_shader_id_;
 512   GLuint client_query_id_;
 513   GLuint client_vertexarray_id_;
 514
 515   uint32 shared_memory_id_;
 516   uint32 shared_memory_offset_;
 517   void* shared_memory_address_;
 518   void* shared_memory_base_;
 519
 520   int8 immediate_buffer_[256];
 521
 522   const bool ignore_cached_state_for_test_;
 523   bool cached_color_mask_red_;
 524   bool cached_color_mask_green_;
 525   bool cached_color_mask_blue_;
 526   bool cached_color_mask_alpha_;
 527   bool cached_depth_mask_;
 528   uint32 cached_stencil_front_mask_;
 529   uint32 cached_stencil_back_mask_;
 530
 531   struct EnableFlags {
 532     EnableFlags();
 533     bool cached_blend;
 534     bool cached_cull_face;
 535     bool cached_depth_test;
 536     bool cached_dither;
 537     bool cached_polygon_offset_fill;
 538     bool cached_sample_alpha_to_coverage;
 539     bool cached_sample_coverage;
 540     bool cached_scissor_test;
 541     bool cached_stencil_test;
 542   };
 543
 544   EnableFlags enable_flags_;
 545
 546  private:
 547   class MockCommandBufferEngine : public CommandBufferEngine {
 548    public:
 549     MockCommandBufferEngine();
 550
 551     virtual ~MockCommandBufferEngine();
 552
 553     virtual scoped_refptr<gpu::Buffer> GetSharedMemoryBuffer(int32 shm_id)
 554         OVERRIDE;
 555
 556     void ClearSharedMemory() {
 557       memset(valid_buffer_->memory(), kInitialMemoryValue, kSharedBufferSize);
 558     }
 559
 560     virtual void set_token(int32 token) OVERRIDE;
 561
 562     virtual bool SetGetBuffer(int32 /* transfer_buffer_id */) OVERRIDE;
 563
 564     // Overridden from CommandBufferEngine.
 565     virtual bool SetGetOffset(int32 offset) OVERRIDE;
 566
 567     // Overridden from CommandBufferEngine.
 568     virtual int32 GetGetOffset() OVERRIDE;
 569
 570    private:
 571     scoped_refptr<gpu::Buffer> valid_buffer_;
 572     scoped_refptr<gpu::Buffer> invalid_buffer_;
 573   };
 574
 575   // MockGLStates is used to track GL states and emulate driver
 576   // behaviors on top of MockGLInterface.
 577   class MockGLStates {
 578    public:
 579     MockGLStates()
 580         : bound_array_buffer_object_(0),
 581           bound_vertex_array_object_(0) {
 582     }
 583
 584     ~MockGLStates() {
 585     }
 586
 587     void OnBindArrayBuffer(GLuint id) {
 588       bound_array_buffer_object_ = id;
 589     }
 590
 591     void OnBindVertexArrayOES(GLuint id) {
 592       bound_vertex_array_object_ = id;
 593     }
 594
 595     void OnVertexAttribNullPointer() {
 596       // When a vertex array object is bound, some drivers (AMD Linux,
 597       // Qualcomm, etc.) have a bug where it incorrectly generates an
 598       // GL_INVALID_OPERATION on glVertexAttribPointer() if pointer
 599       // is NULL, no buffer is bound on GL_ARRAY_BUFFER.
 600       // Make sure we don't trigger this bug.
 601       if (bound_vertex_array_object_ != 0)
 602         EXPECT_TRUE(bound_array_buffer_object_ != 0);
 603     }
 604
 605    private:
 606     GLuint bound_array_buffer_object_;
 607     GLuint bound_vertex_array_object_;
 608   };  // class MockGLStates
 609
 610   void AddExpectationsForVertexAttribManager();
 611   void SetupMockGLBehaviors();
 612
 613   scoped_ptr< ::testing::StrictMock<MockCommandBufferEngine> > engine_;
 614   scoped_refptr<ContextGroup> group_;
 615   MockGLStates gl_states_;
 616 };
 617
 618 class GLES2DecoderWithShaderTestBase : public GLES2DecoderTestBase {
 619  public:
 620   GLES2DecoderWithShaderTestBase()
 621       : GLES2DecoderTestBase() {
 622   }
 623
 624  protected:
 625   virtual void SetUp() OVERRIDE;
 626   virtual void TearDown() OVERRIDE;
 627
 628 };
 629
 630 // SpecializedSetup specializations that are needed in multiple unittest files.
 631 template <>
 632 void GLES2DecoderTestBase::SpecializedSetup<cmds::LinkProgram, 0>(bool valid);
 633
 634 }  // namespace gles2
 635 }  // namespace gpu
 636
 637 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_UNITTEST_BASE_H_