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_TEXTURE_MANAGER_H_ 6 #define GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_ 7 8 #include <list> 9 #include <set> 10 #include <string> 11 #include <vector> 12 #include "base/basictypes.h" 13 #include "base/containers/hash_tables.h" 14 #include "base/logging.h" 15 #include "base/memory/ref_counted.h" 16 #include "base/observer_list.h" 17 #include "gpu/command_buffer/service/async_pixel_transfer_delegate.h" 18 #include "gpu/command_buffer/service/gl_utils.h" 19 #include "gpu/command_buffer/service/memory_tracking.h" 20 #include "gpu/gpu_export.h" 21 #include "ui/gl/gl_image.h" 22 23 namespace gpu { 24 25 class StreamTextureManager; 26 27 namespace gles2 { 28 29 class GLES2Decoder; 30 struct ContextState; 31 struct DecoderFramebufferState; 32 class Display; 33 class ErrorState; 34 class FeatureInfo; 35 class FramebufferManager; 36 class MailboxManager; 37 class TextureManager; 38 class TextureRef; 39 40 // Info about Textures currently in the system. 41 // This class wraps a real GL texture, keeping track of its meta-data. It is 42 // jointly owned by possibly multiple TextureRef. 43 class GPU_EXPORT Texture { 44 public: 45 explicit Texture(GLuint service_id); 46 47 GLenum min_filter() const { 48 return min_filter_; 49 } 50 51 GLenum mag_filter() const { 52 return mag_filter_; 53 } 54 55 GLenum wrap_s() const { 56 return wrap_s_; 57 } 58 59 GLenum wrap_t() const { 60 return wrap_t_; 61 } 62 63 GLenum usage() const { 64 return usage_; 65 } 66 67 GLenum pool() const { 68 return pool_; 69 } 70 71 int num_uncleared_mips() const { 72 return num_uncleared_mips_; 73 } 74 75 uint32 estimated_size() const { 76 return estimated_size_; 77 } 78 79 bool CanRenderTo() const { 80 return !stream_texture_ && target_ != GL_TEXTURE_EXTERNAL_OES; 81 } 82 83 // The service side OpenGL id of the texture. 84 GLuint service_id() const { 85 return service_id_; 86 } 87 88 void SetServiceId(GLuint service_id) { 89 DCHECK(service_id); 90 service_id_ = service_id; 91 } 92 93 // Returns the target this texure was first bound to or 0 if it has not 94 // been bound. Once a texture is bound to a specific target it can never be 95 // bound to a different target. 96 GLenum target() const { 97 return target_; 98 } 99 100 bool SafeToRenderFrom() const { 101 return cleared_; 102 } 103 104 // Get the width and height for a particular level. Returns false if level 105 // does not exist. 106 bool GetLevelSize( 107 GLint target, GLint level, GLsizei* width, GLsizei* height) const; 108 109 // Get the type of a level. Returns false if level does not exist. 110 bool GetLevelType( 111 GLint target, GLint level, GLenum* type, GLenum* internal_format) const; 112 113 // Get the image bound to a particular level. Returns NULL if level 114 // does not exist. 115 gfx::GLImage* GetLevelImage(GLint target, GLint level) const; 116 117 bool HasImages() const { 118 return has_images_; 119 } 120 121 // Returns true of the given dimensions are inside the dimensions of the 122 // level and if the format and type match the level. 123 bool ValidForTexture( 124 GLint target, 125 GLint level, 126 GLint xoffset, 127 GLint yoffset, 128 GLsizei width, 129 GLsizei height, 130 GLenum format, 131 GLenum type) const; 132 133 bool IsValid() const { 134 return !!target(); 135 } 136 137 bool IsAttachedToFramebuffer() const { 138 return framebuffer_attachment_count_ != 0; 139 } 140 141 void AttachToFramebuffer() { 142 ++framebuffer_attachment_count_; 143 } 144 145 void DetachFromFramebuffer() { 146 DCHECK_GT(framebuffer_attachment_count_, 0); 147 --framebuffer_attachment_count_; 148 } 149 150 bool IsStreamTexture() const { 151 return stream_texture_; 152 } 153 154 void SetImmutable(bool immutable) { 155 immutable_ = immutable; 156 } 157 158 bool IsImmutable() const { 159 return immutable_; 160 } 161 162 // Whether a particular level/face is cleared. 163 bool IsLevelCleared(GLenum target, GLint level) const; 164 165 // Whether the texture has been defined 166 bool IsDefined() const { 167 return estimated_size() > 0; 168 } 169 170 void OnWillModifyPixels(); 171 void OnDidModifyPixels(); 172 173 private: 174 friend class MailboxManager; 175 friend class MailboxManagerTest; 176 friend class TextureDefinition; 177 friend class TextureManager; 178 friend class TextureRef; 179 friend class TextureTestHelper; 180 181 ~Texture(); 182 void AddTextureRef(TextureRef* ref); 183 void RemoveTextureRef(TextureRef* ref, bool have_context); 184 MemoryTypeTracker* GetMemTracker(); 185 186 // Condition on which this texture is renderable. Can be ONLY_IF_NPOT if it 187 // depends on context support for non-power-of-two textures (i.e. will be 188 // renderable if NPOT support is in the context, otherwise not, e.g. texture 189 // with a NPOT level). ALWAYS means it doesn't depend on context features 190 // (e.g. complete POT), NEVER means it's not renderable regardless (e.g. 191 // incomplete). 192 enum CanRenderCondition { 193 CAN_RENDER_ALWAYS, 194 CAN_RENDER_NEVER, 195 CAN_RENDER_ONLY_IF_NPOT 196 }; 197 198 struct LevelInfo { 199 LevelInfo(); 200 LevelInfo(const LevelInfo& rhs); 201 ~LevelInfo(); 202 203 bool cleared; 204 GLenum target; 205 GLint level; 206 GLenum internal_format; 207 GLsizei width; 208 GLsizei height; 209 GLsizei depth; 210 GLint border; 211 GLenum format; 212 GLenum type; 213 scoped_refptr<gfx::GLImage> image; 214 uint32 estimated_size; 215 }; 216 217 // Set the info for a particular level. 218 void SetLevelInfo( 219 const FeatureInfo* feature_info, 220 GLenum target, 221 GLint level, 222 GLenum internal_format, 223 GLsizei width, 224 GLsizei height, 225 GLsizei depth, 226 GLint border, 227 GLenum format, 228 GLenum type, 229 bool cleared); 230 231 // In GLES2 "texture complete" means it has all required mips for filtering 232 // down to a 1x1 pixel texture, they are in the correct order, they are all 233 // the same format. 234 bool texture_complete() const { 235 return texture_complete_; 236 } 237 238 // In GLES2 "cube complete" means all 6 faces level 0 are defined, all the 239 // same format, all the same dimensions and all width = height. 240 bool cube_complete() const { 241 return cube_complete_; 242 } 243 244 // Whether or not this texture is a non-power-of-two texture. 245 bool npot() const { 246 return npot_; 247 } 248 249 void SetStreamTexture(bool stream_texture) { 250 stream_texture_ = stream_texture; 251 UpdateCanRenderCondition(); 252 } 253 254 // Marks a particular level as cleared or uncleared. 255 void SetLevelCleared(GLenum target, GLint level, bool cleared); 256 257 // Updates the cleared flag for this texture by inspecting all the mips. 258 void UpdateCleared(); 259 260 // Clears any renderable uncleared levels. 261 // Returns false if a GL error was generated. 262 bool ClearRenderableLevels(GLES2Decoder* decoder); 263 264 // Clears the level. 265 // Returns false if a GL error was generated. 266 bool ClearLevel(GLES2Decoder* decoder, GLenum target, GLint level); 267 268 // Sets a texture parameter. 269 // TODO(gman): Expand to SetParameteri,f,iv,fv 270 // Returns GL_NO_ERROR on success. Otherwise the error to generate. 271 GLenum SetParameter( 272 const FeatureInfo* feature_info, GLenum pname, GLint param); 273 274 // Makes each of the mip levels as though they were generated. 275 bool MarkMipmapsGenerated(const FeatureInfo* feature_info); 276 277 bool NeedsMips() const { 278 return min_filter_ != GL_NEAREST && min_filter_ != GL_LINEAR; 279 } 280 281 // True if this texture meets all the GLES2 criteria for rendering. 282 // See section 3.8.2 of the GLES2 spec. 283 bool CanRender(const FeatureInfo* feature_info) const; 284 285 // Returns true if mipmaps can be generated by GL. 286 bool CanGenerateMipmaps(const FeatureInfo* feature_info) const; 287 288 // Sets the Texture's target 289 // Parameters: 290 // target: GL_TEXTURE_2D or GL_TEXTURE_CUBE_MAP or 291 // GL_TEXTURE_EXTERNAL_OES or GL_TEXTURE_RECTANGLE_ARB 292 // max_levels: The maximum levels this type of target can have. 293 void SetTarget( 294 const FeatureInfo* feature_info, GLenum target, GLint max_levels); 295 296 // Update info about this texture. 297 void Update(const FeatureInfo* feature_info); 298 299 // Set the image for a particular level. 300 void SetLevelImage( 301 const FeatureInfo* feature_info, 302 GLenum target, 303 GLint level, 304 gfx::GLImage* image); 305 306 // Appends a signature for the given level. 307 void AddToSignature( 308 const FeatureInfo* feature_info, 309 GLenum target, GLint level, std::string* signature) const; 310 311 void SetMailboxManager(MailboxManager* mailbox_manager); 312 313 // Updates the unsafe textures count in all the managers referencing this 314 // texture. 315 void UpdateSafeToRenderFrom(bool cleared); 316 317 // Updates the uncleared mip count in all the managers referencing this 318 // texture. 319 void UpdateMipCleared(LevelInfo* info, bool cleared); 320 321 // Computes the CanRenderCondition flag. 322 CanRenderCondition GetCanRenderCondition() const; 323 324 // Updates the unrenderable texture count in all the managers referencing this 325 // texture. 326 void UpdateCanRenderCondition(); 327 328 // Updates the images count in all the managers referencing this 329 // texture. 330 void UpdateHasImages(); 331 332 // Increment the framebuffer state change count in all the managers 333 // referencing this texture. 334 void IncAllFramebufferStateChangeCount(); 335 336 MailboxManager* mailbox_manager_; 337 338 // Info about each face and level of texture. 339 std::vector<std::vector<LevelInfo> > level_infos_; 340 341 // The texture refs that point to this Texture. 342 typedef std::set<TextureRef*> RefSet; 343 RefSet refs_; 344 345 // The single TextureRef that accounts for memory for this texture. Must be 346 // one of refs_. 347 TextureRef* memory_tracking_ref_; 348 349 // The id of the texure 350 GLuint service_id_; 351 352 // Whether all renderable mips of this texture have been cleared. 353 bool cleared_; 354 355 int num_uncleared_mips_; 356 357 // The target. 0 if unset, otherwise GL_TEXTURE_2D or GL_TEXTURE_CUBE_MAP. 358 GLenum target_; 359 360 // Texture parameters. 361 GLenum min_filter_; 362 GLenum mag_filter_; 363 GLenum wrap_s_; 364 GLenum wrap_t_; 365 GLenum usage_; 366 GLenum pool_; 367 368 // The maximum level that has been set. 369 GLint max_level_set_; 370 371 // Whether or not this texture is "texture complete" 372 bool texture_complete_; 373 374 // Whether or not this texture is "cube complete" 375 bool cube_complete_; 376 377 // Whether or not this texture is non-power-of-two 378 bool npot_; 379 380 // Whether this texture has ever been bound. 381 bool has_been_bound_; 382 383 // The number of framebuffers this texture is attached to. 384 int framebuffer_attachment_count_; 385 386 // Whether this is a special streaming texture. 387 bool stream_texture_; 388 389 // Whether the texture is immutable and no further changes to the format 390 // or dimensions of the texture object can be made. 391 bool immutable_; 392 393 // Whether or not this texture has images. 394 bool has_images_; 395 396 // Size in bytes this texture is assumed to take in memory. 397 uint32 estimated_size_; 398 399 // Cache of the computed CanRenderCondition flag. 400 CanRenderCondition can_render_condition_; 401 402 DISALLOW_COPY_AND_ASSIGN(Texture); 403 }; 404 405 // This class represents a texture in a client context group. It's mostly 1:1 406 // with a client id, though it can outlive the client id if it's still bound to 407 // a FBO or another context when destroyed. 408 // Multiple TextureRef can point to the same texture with cross-context sharing. 409 // 410 // Note: for stream textures, the TextureRef that created the stream texture is 411 // set as the "owner" of the stream texture, i.e. it will call 412 // DestroyStreamTexture on destruction. This is because the StreamTextureManager 413 // isn't generally shared between ContextGroups, so ownership can't be at the 414 // Texture level. We also can't have multiple StreamTexture on the same service 415 // id, so there can be only one owner. 416 class GPU_EXPORT TextureRef : public base::RefCounted<TextureRef> { 417 public: 418 TextureRef(TextureManager* manager, GLuint client_id, Texture* texture); 419 static scoped_refptr<TextureRef> Create(TextureManager* manager, 420 GLuint client_id, 421 GLuint service_id); 422 const Texture* texture() const { return texture_; } 423 Texture* texture() { return texture_; } 424 GLuint client_id() const { return client_id_; } 425 GLuint service_id() const { return texture_->service_id(); } 426 427 private: 428 friend class base::RefCounted<TextureRef>; 429 friend class Texture; 430 friend class TextureManager; 431 432 ~TextureRef(); 433 const TextureManager* manager() const { return manager_; } 434 TextureManager* manager() { return manager_; } 435 void reset_client_id() { client_id_ = 0; } 436 void set_is_stream_texture_owner(bool owner) { 437 is_stream_texture_owner_ = owner; 438 } 439 bool is_stream_texture_owner() const { return is_stream_texture_owner_; } 440 441 TextureManager* manager_; 442 Texture* texture_; 443 GLuint client_id_; 444 bool is_stream_texture_owner_; 445 446 DISALLOW_COPY_AND_ASSIGN(TextureRef); 447 }; 448 449 // Holds data that is per gles2_cmd_decoder, but is related to to the 450 // TextureManager. 451 struct DecoderTextureState { 452 // total_texture_upload_time automatically initialized to 0 in default 453 // constructor. 454 DecoderTextureState(bool texsubimage2d_faster_than_teximage2d) 455 : tex_image_2d_failed(false), 456 texture_upload_count(0), 457 texsubimage2d_faster_than_teximage2d( 458 texsubimage2d_faster_than_teximage2d) {} 459 460 // This indicates all the following texSubImage2D calls that are part of the 461 // failed texImage2D call should be ignored. 462 bool tex_image_2d_failed; 463 464 // Command buffer stats. 465 int texture_upload_count; 466 base::TimeDelta total_texture_upload_time; 467 468 bool texsubimage2d_faster_than_teximage2d; 469 }; 470 471 // This class keeps track of the textures and their sizes so we can do NPOT and 472 // texture complete checking. 473 // 474 // NOTE: To support shared resources an instance of this class will need to be 475 // shared by multiple GLES2Decoders. 476 class GPU_EXPORT TextureManager { 477 public: 478 class GPU_EXPORT DestructionObserver { 479 public: 480 DestructionObserver(); 481 virtual ~DestructionObserver(); 482 483 // Called in ~TextureManager. 484 virtual void OnTextureManagerDestroying(TextureManager* manager) = 0; 485 486 // Called via ~TextureRef. 487 virtual void OnTextureRefDestroying(TextureRef* texture) = 0; 488 489 private: 490 DISALLOW_COPY_AND_ASSIGN(DestructionObserver); 491 }; 492 493 enum DefaultAndBlackTextures { 494 kTexture2D, 495 kCubeMap, 496 kExternalOES, 497 kRectangleARB, 498 kNumDefaultTextures 499 }; 500 501 TextureManager(MemoryTracker* memory_tracker, 502 FeatureInfo* feature_info, 503 GLsizei max_texture_size, 504 GLsizei max_cube_map_texture_size); 505 ~TextureManager(); 506 507 void set_framebuffer_manager(FramebufferManager* manager) { 508 framebuffer_manager_ = manager; 509 } 510 511 void set_stream_texture_manager(StreamTextureManager* manager) { 512 stream_texture_manager_ = manager; 513 } 514 515 // Init the texture manager. 516 bool Initialize(); 517 518 // Must call before destruction. 519 void Destroy(bool have_context); 520 521 // Returns the maximum number of levels. 522 GLint MaxLevelsForTarget(GLenum target) const { 523 switch (target) { 524 case GL_TEXTURE_2D: 525 return max_levels_; 526 case GL_TEXTURE_EXTERNAL_OES: 527 return 1; 528 default: 529 return max_cube_map_levels_; 530 } 531 } 532 533 // Returns the maximum size. 534 GLsizei MaxSizeForTarget(GLenum target) const { 535 switch (target) { 536 case GL_TEXTURE_2D: 537 case GL_TEXTURE_EXTERNAL_OES: 538 return max_texture_size_; 539 default: 540 return max_cube_map_texture_size_; 541 } 542 } 543 544 // Returns the maxium number of levels a texture of the given size can have. 545 static GLsizei ComputeMipMapCount(GLenum target, 546 GLsizei width, 547 GLsizei height, 548 GLsizei depth); 549 550 // Checks if a dimensions are valid for a given target. 551 bool ValidForTarget( 552 GLenum target, GLint level, 553 GLsizei width, GLsizei height, GLsizei depth); 554 555 // True if this texture meets all the GLES2 criteria for rendering. 556 // See section 3.8.2 of the GLES2 spec. 557 bool CanRender(const TextureRef* ref) const { 558 return ref->texture()->CanRender(feature_info_.get()); 559 } 560 561 // Returns true if mipmaps can be generated by GL. 562 bool CanGenerateMipmaps(const TextureRef* ref) const { 563 return ref->texture()->CanGenerateMipmaps(feature_info_.get()); 564 } 565 566 // Sets the Texture's target 567 // Parameters: 568 // target: GL_TEXTURE_2D or GL_TEXTURE_CUBE_MAP 569 // max_levels: The maximum levels this type of target can have. 570 void SetTarget( 571 TextureRef* ref, 572 GLenum target); 573 574 // Marks a texture as a stream texture, and the ref as the stream texture 575 // owner. 576 void SetStreamTexture(TextureRef* ref, bool stream_texture); 577 578 // Whether the TextureRef is the stream texture owner. 579 bool IsStreamTextureOwner(TextureRef* ref); 580 581 // Set the info for a particular level in a TexureInfo. 582 void SetLevelInfo( 583 TextureRef* ref, 584 GLenum target, 585 GLint level, 586 GLenum internal_format, 587 GLsizei width, 588 GLsizei height, 589 GLsizei depth, 590 GLint border, 591 GLenum format, 592 GLenum type, 593 bool cleared); 594 595 // Adapter to call above function. 596 void SetLevelInfoFromParams(TextureRef* ref, 597 const gpu::AsyncTexImage2DParams& params) { 598 SetLevelInfo( 599 ref, params.target, params.level, params.internal_format, 600 params.width, params.height, 1 /* depth */, 601 params.border, params.format, 602 params.type, true /* cleared */ ); 603 } 604 605 Texture* Produce(TextureRef* ref); 606 607 // Maps an existing texture into the texture manager, at a given client ID. 608 TextureRef* Consume(GLuint client_id, Texture* texture); 609 610 // Sets a mip as cleared. 611 void SetLevelCleared(TextureRef* ref, GLenum target, 612 GLint level, bool cleared); 613 614 // Sets a texture parameter of a Texture 615 // Returns GL_NO_ERROR on success. Otherwise the error to generate. 616 // TODO(gman): Expand to SetParameteri,f,iv,fv 617 void SetParameter( 618 const char* function_name, ErrorState* error_state, 619 TextureRef* ref, GLenum pname, GLint param); 620 621 // Makes each of the mip levels as though they were generated. 622 // Returns false if that's not allowed for the given texture. 623 bool MarkMipmapsGenerated(TextureRef* ref); 624 625 // Clears any uncleared renderable levels. 626 bool ClearRenderableLevels(GLES2Decoder* decoder, TextureRef* ref); 627 628 // Clear a specific level. 629 bool ClearTextureLevel( 630 GLES2Decoder* decoder, TextureRef* ref, GLenum target, GLint level); 631 632 // Creates a new texture info. 633 TextureRef* CreateTexture(GLuint client_id, GLuint service_id); 634 635 // Gets the texture info for the given texture. 636 TextureRef* GetTexture(GLuint client_id) const; 637 638 // Removes a texture info. 639 void RemoveTexture(GLuint client_id); 640 641 // Gets a Texture for a given service id (note: it assumes the texture object 642 // is still mapped in this TextureManager). 643 Texture* GetTextureForServiceId(GLuint service_id) const; 644 645 TextureRef* GetDefaultTextureInfo(GLenum target) { 646 switch (target) { 647 case GL_TEXTURE_2D: 648 return default_textures_[kTexture2D].get(); 649 case GL_TEXTURE_CUBE_MAP: 650 return default_textures_[kCubeMap].get(); 651 case GL_TEXTURE_EXTERNAL_OES: 652 return default_textures_[kExternalOES].get(); 653 case GL_TEXTURE_RECTANGLE_ARB: 654 return default_textures_[kRectangleARB].get(); 655 default: 656 NOTREACHED(); 657 return NULL; 658 } 659 } 660 661 bool HaveUnrenderableTextures() const { 662 return num_unrenderable_textures_ > 0; 663 } 664 665 bool HaveUnsafeTextures() const { 666 return num_unsafe_textures_ > 0; 667 } 668 669 bool HaveUnclearedMips() const { 670 return num_uncleared_mips_ > 0; 671 } 672 673 bool HaveImages() const { 674 return num_images_ > 0; 675 } 676 677 GLuint black_texture_id(GLenum target) const { 678 switch (target) { 679 case GL_SAMPLER_2D: 680 return black_texture_ids_[kTexture2D]; 681 case GL_SAMPLER_CUBE: 682 return black_texture_ids_[kCubeMap]; 683 case GL_SAMPLER_EXTERNAL_OES: 684 return black_texture_ids_[kExternalOES]; 685 case GL_SAMPLER_2D_RECT_ARB: 686 return black_texture_ids_[kRectangleARB]; 687 default: 688 NOTREACHED(); 689 return 0; 690 } 691 } 692 693 size_t mem_represented() const { 694 return 695 memory_tracker_managed_->GetMemRepresented() + 696 memory_tracker_unmanaged_->GetMemRepresented(); 697 } 698 699 void SetLevelImage( 700 TextureRef* ref, 701 GLenum target, 702 GLint level, 703 gfx::GLImage* image); 704 705 void AddToSignature( 706 TextureRef* ref, 707 GLenum target, 708 GLint level, 709 std::string* signature) const; 710 711 void AddObserver(DestructionObserver* observer) { 712 destruction_observers_.AddObserver(observer); 713 } 714 715 void RemoveObserver(DestructionObserver* observer) { 716 destruction_observers_.RemoveObserver(observer); 717 } 718 719 struct DoTextImage2DArguments { 720 GLenum target; 721 GLint level; 722 GLenum internal_format; 723 GLsizei width; 724 GLsizei height; 725 GLint border; 726 GLenum format; 727 GLenum type; 728 const void* pixels; 729 uint32 pixels_size; 730 }; 731 732 bool ValidateTexImage2D( 733 ContextState* state, 734 const char* function_name, 735 const DoTextImage2DArguments& args, 736 // Pointer to TextureRef filled in if validation successful. 737 // Presumes the pointer is valid. 738 TextureRef** texture_ref); 739 740 void ValidateAndDoTexImage2D( 741 DecoderTextureState* texture_state, 742 ContextState* state, 743 DecoderFramebufferState* framebuffer_state, 744 const DoTextImage2DArguments& args); 745 746 // TODO(kloveless): Make GetTexture* private once this is no longer called 747 // from gles2_cmd_decoder. 748 TextureRef* GetTextureInfoForTarget(ContextState* state, GLenum target); 749 TextureRef* GetTextureInfoForTargetUnlessDefault( 750 ContextState* state, GLenum target); 751 752 bool ValidateTextureParameters( 753 ErrorState* error_state, const char* function_name, 754 GLenum target, GLenum format, GLenum type, GLint level); 755 756 private: 757 friend class Texture; 758 friend class TextureRef; 759 760 // Helper for Initialize(). 761 scoped_refptr<TextureRef> CreateDefaultAndBlackTextures( 762 GLenum target, 763 GLuint* black_texture); 764 765 void DoTexImage2D( 766 DecoderTextureState* texture_state, 767 ErrorState* error_state, 768 DecoderFramebufferState* framebuffer_state, 769 TextureRef* texture_ref, 770 const DoTextImage2DArguments& args); 771 772 void StartTracking(TextureRef* texture); 773 void StopTracking(TextureRef* texture); 774 775 void UpdateSafeToRenderFrom(int delta); 776 void UpdateUnclearedMips(int delta); 777 void UpdateCanRenderCondition(Texture::CanRenderCondition old_condition, 778 Texture::CanRenderCondition new_condition); 779 void UpdateNumImages(int delta); 780 void IncFramebufferStateChangeCount(); 781 782 MemoryTypeTracker* GetMemTracker(GLenum texture_pool); 783 scoped_ptr<MemoryTypeTracker> memory_tracker_managed_; 784 scoped_ptr<MemoryTypeTracker> memory_tracker_unmanaged_; 785 786 scoped_refptr<FeatureInfo> feature_info_; 787 788 FramebufferManager* framebuffer_manager_; 789 StreamTextureManager* stream_texture_manager_; 790 791 // Info for each texture in the system. 792 typedef base::hash_map<GLuint, scoped_refptr<TextureRef> > TextureMap; 793 TextureMap textures_; 794 795 GLsizei max_texture_size_; 796 GLsizei max_cube_map_texture_size_; 797 GLint max_levels_; 798 GLint max_cube_map_levels_; 799 800 int num_unrenderable_textures_; 801 int num_unsafe_textures_; 802 int num_uncleared_mips_; 803 int num_images_; 804 805 // Counts the number of Textures allocated with 'this' as its manager. 806 // Allows to check no Texture will outlive this. 807 unsigned int texture_count_; 808 809 bool have_context_; 810 811 // Black (0,0,0,1) textures for when non-renderable textures are used. 812 // NOTE: There is no corresponding Texture for these textures. 813 // TextureInfos are only for textures the client side can access. 814 GLuint black_texture_ids_[kNumDefaultTextures]; 815 816 // The default textures for each target (texture name = 0) 817 scoped_refptr<TextureRef> default_textures_[kNumDefaultTextures]; 818 819 ObserverList<DestructionObserver> destruction_observers_; 820 821 DISALLOW_COPY_AND_ASSIGN(TextureManager); 822 }; 823 824 // This class records texture upload time when in scope. 825 class ScopedTextureUploadTimer { 826 public: 827 explicit ScopedTextureUploadTimer(DecoderTextureState* texture_state); 828 ~ScopedTextureUploadTimer(); 829 830 private: 831 DecoderTextureState* texture_state_; 832 base::TimeTicks begin_time_; 833 DISALLOW_COPY_AND_ASSIGN(ScopedTextureUploadTimer); 834 }; 835 836 } // namespace gles2 837 } // namespace gpu 838 839 #endif // GPU_COMMAND_BUFFER_SERVICE_TEXTURE_MANAGER_H_ 840