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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrGpu_DEFINED | 8 #ifndef GrGpu_DEFINED |
9 #define GrGpu_DEFINED | 9 #define GrGpu_DEFINED |
10 | 10 |
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328 virtual void clearStencilClip(const SkIRect& rect, bool insideClip) = 0; | 328 virtual void clearStencilClip(const SkIRect& rect, bool insideClip) = 0; |
329 | 329 |
330 enum PrivateDrawStateStateBits { | 330 enum PrivateDrawStateStateBits { |
331 kFirstBit = (GrDrawState::kLastPublicStateBit << 1), | 331 kFirstBit = (GrDrawState::kLastPublicStateBit << 1), |
332 | 332 |
333 kModifyStencilClip_StateBit = kFirstBit, // allows draws to modify | 333 kModifyStencilClip_StateBit = kFirstBit, // allows draws to modify |
334 // stencil bits used for | 334 // stencil bits used for |
335 // clipping. | 335 // clipping. |
336 }; | 336 }; |
337 | 337 |
| 338 void setStencilPathSettings(const GrStencilSettings& settings) { |
| 339 fStencilPathSettings = settings; |
| 340 } |
| 341 |
338 protected: | 342 protected: |
339 enum DrawType { | 343 enum DrawType { |
340 kDrawPoints_DrawType, | 344 kDrawPoints_DrawType, |
341 kDrawLines_DrawType, | 345 kDrawLines_DrawType, |
342 kDrawTriangles_DrawType, | 346 kDrawTriangles_DrawType, |
343 kStencilPath_DrawType, | 347 kStencilPath_DrawType, |
| 348 kDrawPath_DrawType, |
344 }; | 349 }; |
345 | 350 |
346 DrawType PrimTypeToDrawType(GrPrimitiveType type) { | 351 DrawType PrimTypeToDrawType(GrPrimitiveType type) { |
347 switch (type) { | 352 switch (type) { |
348 case kTriangles_GrPrimitiveType: | 353 case kTriangles_GrPrimitiveType: |
349 case kTriangleStrip_GrPrimitiveType: | 354 case kTriangleStrip_GrPrimitiveType: |
350 case kTriangleFan_GrPrimitiveType: | 355 case kTriangleFan_GrPrimitiveType: |
351 return kDrawTriangles_DrawType; | 356 return kDrawTriangles_DrawType; |
352 case kPoints_GrPrimitiveType: | 357 case kPoints_GrPrimitiveType: |
353 return kDrawPoints_DrawType; | 358 return kDrawPoints_DrawType; |
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390 } | 395 } |
391 | 396 |
392 // The state of the scissor is controlled by the clip manager | 397 // The state of the scissor is controlled by the clip manager |
393 struct ScissorState { | 398 struct ScissorState { |
394 bool fEnabled; | 399 bool fEnabled; |
395 SkIRect fRect; | 400 SkIRect fRect; |
396 } fScissorState; | 401 } fScissorState; |
397 | 402 |
398 // The final stencil settings to use as determined by the clip manager. | 403 // The final stencil settings to use as determined by the clip manager. |
399 GrStencilSettings fStencilSettings; | 404 GrStencilSettings fStencilSettings; |
| 405 GrStencilSettings fStencilPathSettings; |
400 | 406 |
401 // Derived classes need access to this so they can fill it out in their | 407 // Derived classes need access to this so they can fill it out in their |
402 // constructors | 408 // constructors |
403 bool fConfigRenderSupport[kGrPixelConfigCnt]; | 409 bool fConfigRenderSupport[kGrPixelConfigCnt]; |
404 | 410 |
405 // Helpers for setting up geometry state | 411 // Helpers for setting up geometry state |
406 void finalizeReservedVertices(); | 412 void finalizeReservedVertices(); |
407 void finalizeReservedIndices(); | 413 void finalizeReservedIndices(); |
408 | 414 |
409 private: | 415 private: |
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433 virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, bool dynamic) =
0; | 439 virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, bool dynamic) =
0; |
434 virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, bool dynamic) = 0; | 440 virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, bool dynamic) = 0; |
435 virtual GrPath* onCreatePath(const SkPath& path) = 0; | 441 virtual GrPath* onCreatePath(const SkPath& path) = 0; |
436 | 442 |
437 // overridden by backend-specific derived class to perform the clear and | 443 // overridden by backend-specific derived class to perform the clear and |
438 // clearRect. NULL rect means clear whole target. | 444 // clearRect. NULL rect means clear whole target. |
439 virtual void onClear(const SkIRect* rect, GrColor color) = 0; | 445 virtual void onClear(const SkIRect* rect, GrColor color) = 0; |
440 | 446 |
441 // overridden by backend-specific derived class to perform the draw call. | 447 // overridden by backend-specific derived class to perform the draw call. |
442 virtual void onGpuDraw(const DrawInfo&) = 0; | 448 virtual void onGpuDraw(const DrawInfo&) = 0; |
443 // when GrDrawTarget::stencilPath is called the draw state's current stencil | 449 |
444 // settings are ignored. Instead the GrGpu decides the stencil rules | |
445 // necessary to stencil the path. These are still subject to filtering by | |
446 // the clip mask manager. | |
447 virtual void setStencilPathSettings(const GrPath&, | |
448 SkPath::FillType, | |
449 GrStencilSettings* settings) = 0; | |
450 // overridden by backend-specific derived class to perform the path stencili
ng. | 450 // overridden by backend-specific derived class to perform the path stencili
ng. |
| 451 virtual const GrStencilSettings& getStencilPathSettings(const GrPath&, |
| 452 SkPath::FillType) =
0; |
451 virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0; | 453 virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0; |
| 454 virtual void onGpuDrawPath(const GrPath*, SkPath::FillType) = 0; |
452 | 455 |
453 // overridden by backend-specific derived class to perform flush | 456 // overridden by backend-specific derived class to perform flush |
454 virtual void onForceRenderTargetFlush() = 0; | 457 virtual void onForceRenderTargetFlush() = 0; |
455 | 458 |
456 // overridden by backend-specific derived class to perform the read pixels. | 459 // overridden by backend-specific derived class to perform the read pixels. |
457 virtual bool onReadPixels(GrRenderTarget* target, | 460 virtual bool onReadPixels(GrRenderTarget* target, |
458 int left, int top, int width, int height, | 461 int left, int top, int width, int height, |
459 GrPixelConfig, | 462 GrPixelConfig, |
460 void* buffer, | 463 void* buffer, |
461 size_t rowBytes) = 0; | 464 size_t rowBytes) = 0; |
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487 virtual void clearStencil() = 0; | 490 virtual void clearStencil() = 0; |
488 | 491 |
489 // Given a rt, find or create a stencil buffer and attach it | 492 // Given a rt, find or create a stencil buffer and attach it |
490 bool attachStencilBufferToRenderTarget(GrRenderTarget* target); | 493 bool attachStencilBufferToRenderTarget(GrRenderTarget* target); |
491 | 494 |
492 // GrDrawTarget overrides | 495 // GrDrawTarget overrides |
493 virtual void onDraw(const DrawInfo&) SK_OVERRIDE; | 496 virtual void onDraw(const DrawInfo&) SK_OVERRIDE; |
494 virtual void onStencilPath(const GrPath* path, const SkStrokeRec& stroke, | 497 virtual void onStencilPath(const GrPath* path, const SkStrokeRec& stroke, |
495 SkPath::FillType) SK_OVERRIDE; | 498 SkPath::FillType) SK_OVERRIDE; |
496 | 499 |
| 500 virtual void onDrawPath(const GrPath* path, const SkStrokeRec& stroke, |
| 501 SkPath::FillType) SK_OVERRIDE; |
| 502 |
497 // readies the pools to provide vertex/index data. | 503 // readies the pools to provide vertex/index data. |
498 void prepareVertexPool(); | 504 void prepareVertexPool(); |
499 void prepareIndexPool(); | 505 void prepareIndexPool(); |
500 | 506 |
501 void resetContext() { | 507 void resetContext() { |
502 // We call this because the client may have messed with the | 508 // We call this because the client may have messed with the |
503 // stencil buffer. Perhaps we should detect whether it is a | 509 // stencil buffer. Perhaps we should detect whether it is a |
504 // internally created stencil buffer and if so skip the invalidate. | 510 // internally created stencil buffer and if so skip the invalidate. |
505 fClipMaskManager.invalidateStencilMask(); | 511 fClipMaskManager.invalidateStencilMask(); |
506 this->onResetContext(fResetBits); | 512 this->onResetContext(fResetBits); |
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529 // these are mutable so they can be created on-demand | 535 // these are mutable so they can be created on-demand |
530 mutable GrIndexBuffer* fQuadInd
exBuffer; | 536 mutable GrIndexBuffer* fQuadInd
exBuffer; |
531 // Used to abandon/release all resources created by this GrGpu. TODO: Move t
his | 537 // Used to abandon/release all resources created by this GrGpu. TODO: Move t
his |
532 // functionality to GrResourceCache. | 538 // functionality to GrResourceCache. |
533 ResourceList fResourc
eList; | 539 ResourceList fResourc
eList; |
534 | 540 |
535 typedef GrDrawTarget INHERITED; | 541 typedef GrDrawTarget INHERITED; |
536 }; | 542 }; |
537 | 543 |
538 #endif | 544 #endif |
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