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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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117 * GrIndexBuffer::updateData. | 117 * GrIndexBuffer::updateData. |
118 * | 118 * |
119 * @return The index buffer if successful, otherwise NULL. | 119 * @return The index buffer if successful, otherwise NULL. |
120 */ | 120 */ |
121 GrIndexBuffer* createIndexBuffer(uint32_t size, bool dynamic); | 121 GrIndexBuffer* createIndexBuffer(uint32_t size, bool dynamic); |
122 | 122 |
123 /** | 123 /** |
124 * Creates a path object that can be stenciled using stencilPath(). It is | 124 * Creates a path object that can be stenciled using stencilPath(). It is |
125 * only legal to call this if the caps report support for path stenciling. | 125 * only legal to call this if the caps report support for path stenciling. |
126 */ | 126 */ |
127 GrPath* createPath(const SkPath& path); | 127 GrPath* createPath(const SkPath& path, const SkStrokeRec& stroke); |
128 | 128 |
129 /** | 129 /** |
130 * Returns an index buffer that can be used to render quads. | 130 * Returns an index buffer that can be used to render quads. |
131 * Six indices per quad: 0, 1, 2, 0, 2, 3, etc. | 131 * Six indices per quad: 0, 1, 2, 0, 2, 3, etc. |
132 * The max number of quads can be queried using GrIndexBuffer::maxQuads(). | 132 * The max number of quads can be queried using GrIndexBuffer::maxQuads(). |
133 * Draw with kTriangles_GrPrimitiveType | 133 * Draw with kTriangles_GrPrimitiveType |
134 * @ return the quad index buffer | 134 * @ return the quad index buffer |
135 */ | 135 */ |
136 const GrIndexBuffer* getQuadIndexBuffer() const; | 136 const GrIndexBuffer* getQuadIndexBuffer() const; |
137 | 137 |
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336 }; | 336 }; |
337 | 337 |
338 void getPathStencilSettingsForFillType(SkPath::FillType fill, GrStencilSetti
ngs* outStencilSettings); | 338 void getPathStencilSettingsForFillType(SkPath::FillType fill, GrStencilSetti
ngs* outStencilSettings); |
339 | 339 |
340 protected: | 340 protected: |
341 enum DrawType { | 341 enum DrawType { |
342 kDrawPoints_DrawType, | 342 kDrawPoints_DrawType, |
343 kDrawLines_DrawType, | 343 kDrawLines_DrawType, |
344 kDrawTriangles_DrawType, | 344 kDrawTriangles_DrawType, |
345 kStencilPath_DrawType, | 345 kStencilPath_DrawType, |
346 kFillPath_DrawType, | 346 kDrawPath_DrawType, |
347 }; | 347 }; |
348 | 348 |
349 DrawType PrimTypeToDrawType(GrPrimitiveType type) { | 349 DrawType PrimTypeToDrawType(GrPrimitiveType type) { |
350 switch (type) { | 350 switch (type) { |
351 case kTriangles_GrPrimitiveType: | 351 case kTriangles_GrPrimitiveType: |
352 case kTriangleStrip_GrPrimitiveType: | 352 case kTriangleStrip_GrPrimitiveType: |
353 case kTriangleFan_GrPrimitiveType: | 353 case kTriangleFan_GrPrimitiveType: |
354 return kDrawTriangles_DrawType; | 354 return kDrawTriangles_DrawType; |
355 case kPoints_GrPrimitiveType: | 355 case kPoints_GrPrimitiveType: |
356 return kDrawPoints_DrawType; | 356 return kDrawPoints_DrawType; |
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428 virtual void onResetContext(uint32_t resetBits) = 0; | 428 virtual void onResetContext(uint32_t resetBits) = 0; |
429 | 429 |
430 // overridden by backend-specific derived class to create objects. | 430 // overridden by backend-specific derived class to create objects. |
431 virtual GrTexture* onCreateTexture(const GrTextureDesc& desc, | 431 virtual GrTexture* onCreateTexture(const GrTextureDesc& desc, |
432 const void* srcData, | 432 const void* srcData, |
433 size_t rowBytes) = 0; | 433 size_t rowBytes) = 0; |
434 virtual GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&) = 0; | 434 virtual GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&) = 0; |
435 virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTarge
tDesc&) = 0; | 435 virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTarge
tDesc&) = 0; |
436 virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, bool dynamic) =
0; | 436 virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, bool dynamic) =
0; |
437 virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, bool dynamic) = 0; | 437 virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, bool dynamic) = 0; |
438 virtual GrPath* onCreatePath(const SkPath& path) = 0; | 438 virtual GrPath* onCreatePath(const SkPath& path, const SkStrokeRec&) = 0; |
439 | 439 |
440 // overridden by backend-specific derived class to perform the clear and | 440 // overridden by backend-specific derived class to perform the clear and |
441 // clearRect. NULL rect means clear whole target. | 441 // clearRect. NULL rect means clear whole target. |
442 virtual void onClear(const SkIRect* rect, GrColor color) = 0; | 442 virtual void onClear(const SkIRect* rect, GrColor color) = 0; |
443 | 443 |
444 // overridden by backend-specific derived class to perform the draw call. | 444 // overridden by backend-specific derived class to perform the draw call. |
445 virtual void onGpuDraw(const DrawInfo&) = 0; | 445 virtual void onGpuDraw(const DrawInfo&) = 0; |
446 | 446 |
447 // overridden by backend-specific derived class to perform the path stencili
ng. | 447 // overridden by backend-specific derived class to perform the path stencili
ng. |
448 virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0; | 448 virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0; |
449 virtual void onGpuFillPath(const GrPath*, SkPath::FillType) = 0; | 449 virtual void onGpuDrawPath(const GrPath*, SkPath::FillType) = 0; |
450 | 450 |
451 // overridden by backend-specific derived class to perform flush | 451 // overridden by backend-specific derived class to perform flush |
452 virtual void onForceRenderTargetFlush() = 0; | 452 virtual void onForceRenderTargetFlush() = 0; |
453 | 453 |
454 // overridden by backend-specific derived class to perform the read pixels. | 454 // overridden by backend-specific derived class to perform the read pixels. |
455 virtual bool onReadPixels(GrRenderTarget* target, | 455 virtual bool onReadPixels(GrRenderTarget* target, |
456 int left, int top, int width, int height, | 456 int left, int top, int width, int height, |
457 GrPixelConfig, | 457 GrPixelConfig, |
458 void* buffer, | 458 void* buffer, |
459 size_t rowBytes) = 0; | 459 size_t rowBytes) = 0; |
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482 virtual bool flushGraphicsState(DrawType, const GrDeviceCoordTexture* dstCop
y) = 0; | 482 virtual bool flushGraphicsState(DrawType, const GrDeviceCoordTexture* dstCop
y) = 0; |
483 | 483 |
484 // clears the entire stencil buffer to 0 | 484 // clears the entire stencil buffer to 0 |
485 virtual void clearStencil() = 0; | 485 virtual void clearStencil() = 0; |
486 | 486 |
487 // Given a rt, find or create a stencil buffer and attach it | 487 // Given a rt, find or create a stencil buffer and attach it |
488 bool attachStencilBufferToRenderTarget(GrRenderTarget* target); | 488 bool attachStencilBufferToRenderTarget(GrRenderTarget* target); |
489 | 489 |
490 // GrDrawTarget overrides | 490 // GrDrawTarget overrides |
491 virtual void onDraw(const DrawInfo&) SK_OVERRIDE; | 491 virtual void onDraw(const DrawInfo&) SK_OVERRIDE; |
492 virtual void onStencilPath(const GrPath* path, const SkStrokeRec& stroke, | 492 virtual void onStencilPath(const GrPath*, SkPath::FillType) SK_OVERRIDE; |
493 SkPath::FillType) SK_OVERRIDE; | 493 virtual void onDrawPath(const GrPath*, SkPath::FillType, |
494 | |
495 virtual void onFillPath(const GrPath* path, const SkStrokeRec& stroke, SkPat
h::FillType, | |
496 const GrDeviceCoordTexture* dstCopy) SK_OVERRIDE; | 494 const GrDeviceCoordTexture* dstCopy) SK_OVERRIDE; |
497 | 495 |
498 // readies the pools to provide vertex/index data. | 496 // readies the pools to provide vertex/index data. |
499 void prepareVertexPool(); | 497 void prepareVertexPool(); |
500 void prepareIndexPool(); | 498 void prepareIndexPool(); |
501 | 499 |
502 void resetContext() { | 500 void resetContext() { |
503 // We call this because the client may have messed with the | 501 // We call this because the client may have messed with the |
504 // stencil buffer. Perhaps we should detect whether it is a | 502 // stencil buffer. Perhaps we should detect whether it is a |
505 // internally created stencil buffer and if so skip the invalidate. | 503 // internally created stencil buffer and if so skip the invalidate. |
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530 // these are mutable so they can be created on-demand | 528 // these are mutable so they can be created on-demand |
531 mutable GrIndexBuffer* fQuadInd
exBuffer; | 529 mutable GrIndexBuffer* fQuadInd
exBuffer; |
532 // Used to abandon/release all resources created by this GrGpu. TODO: Move t
his | 530 // Used to abandon/release all resources created by this GrGpu. TODO: Move t
his |
533 // functionality to GrResourceCache. | 531 // functionality to GrResourceCache. |
534 ResourceList fResourc
eList; | 532 ResourceList fResourc
eList; |
535 | 533 |
536 typedef GrDrawTarget INHERITED; | 534 typedef GrDrawTarget INHERITED; |
537 }; | 535 }; |
538 | 536 |
539 #endif | 537 #endif |
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