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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 GrDrawTarget_DEFINED | 8 #ifndef GrDrawTarget_DEFINED |
9 #define GrDrawTarget_DEFINED | 9 #define GrDrawTarget_DEFINED |
10 | 10 |
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322 const SkRect* devBounds = NULL); | 322 const SkRect* devBounds = NULL); |
323 | 323 |
324 /** | 324 /** |
325 * Draws path into the stencil buffer. The fill must be either even/odd or | 325 * Draws path into the stencil buffer. The fill must be either even/odd or |
326 * winding (not inverse or hairline). It will respect the HW antialias flag | 326 * winding (not inverse or hairline). It will respect the HW antialias flag |
327 * on the draw state (if possible in the 3D API). | 327 * on the draw state (if possible in the 3D API). |
328 */ | 328 */ |
329 void stencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill); | 329 void stencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fill); |
330 | 330 |
331 /** | 331 /** |
332 * Fills a path. Fill must not be a hairline. It will respect the HW | |
333 * antialias flag on the draw state (if possible in the 3D API). | |
334 */ | |
335 void fillPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType fil l); | |
336 | |
337 /** | |
332 * Helper function for drawing rects. It performs a geometry src push and po p | 338 * Helper function for drawing rects. It performs a geometry src push and po p |
333 * and thus will finalize any reserved geometry. | 339 * and thus will finalize any reserved geometry. |
334 * | 340 * |
335 * @param rect the rect to draw | 341 * @param rect the rect to draw |
336 * @param matrix optional matrix applied to rect (before viewMatrix) | 342 * @param matrix optional matrix applied to rect (before viewMatrix) |
337 * @param localRect optional rect that specifies local coords to map onto | 343 * @param localRect optional rect that specifies local coords to map onto |
338 * rect. If NULL then rect serves as the local coords. | 344 * rect. If NULL then rect serves as the local coords. |
339 * @param localMatrix optional matrix applied to localRect. If | 345 * @param localMatrix optional matrix applied to localRect. If |
340 * srcRect is non-NULL and srcMatrix is non-NULL | 346 * srcRect is non-NULL and srcMatrix is non-NULL |
341 * then srcRect will be transformed by srcMatrix. | 347 * then srcRect will be transformed by srcMatrix. |
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754 void adjustStartVertex(int vertexOffset); | 760 void adjustStartVertex(int vertexOffset); |
755 // shifts the start index | 761 // shifts the start index |
756 void adjustStartIndex(int indexOffset); | 762 void adjustStartIndex(int indexOffset); |
757 | 763 |
758 void setDevBounds(const SkRect& bounds) { | 764 void setDevBounds(const SkRect& bounds) { |
759 fDevBoundsStorage = bounds; | 765 fDevBoundsStorage = bounds; |
760 fDevBounds = &fDevBoundsStorage; | 766 fDevBounds = &fDevBoundsStorage; |
761 } | 767 } |
762 const SkRect* getDevBounds() const { return fDevBounds; } | 768 const SkRect* getDevBounds() const { return fDevBounds; } |
763 | 769 |
764 bool getDevIBounds(SkIRect* bounds) const { | |
765 if (NULL != fDevBounds) { | |
766 fDevBounds->roundOut(bounds); | |
767 return true; | |
768 } else { | |
769 return false; | |
770 } | |
771 } | |
772 | |
773 // NULL if no copy of the dst is needed for the draw. | 770 // NULL if no copy of the dst is needed for the draw. |
774 const GrDeviceCoordTexture* getDstCopy() const { | 771 const GrDeviceCoordTexture* getDstCopy() const { |
775 if (NULL != fDstCopy.texture()) { | 772 if (NULL != fDstCopy.texture()) { |
776 return &fDstCopy; | 773 return &fDstCopy; |
777 } else { | 774 } else { |
778 return NULL; | 775 return NULL; |
779 } | 776 } |
780 } | 777 } |
781 | 778 |
782 private: | 779 private: |
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827 // be saved before this is called and restored afterwards. A subclass may ov erride | 824 // be saved before this is called and restored afterwards. A subclass may ov erride |
828 // this to perform more optimal rect rendering. Its draws should be funneled through | 825 // this to perform more optimal rect rendering. Its draws should be funneled through |
829 // one of the public GrDrawTarget draw methods (e.g. drawNonIndexed, | 826 // one of the public GrDrawTarget draw methods (e.g. drawNonIndexed, |
830 // drawIndexedInstances, ...). The base class draws a two triangle fan using | 827 // drawIndexedInstances, ...). The base class draws a two triangle fan using |
831 // drawNonIndexed from reserved vertex space. | 828 // drawNonIndexed from reserved vertex space. |
832 virtual void onDrawRect(const SkRect& rect, | 829 virtual void onDrawRect(const SkRect& rect, |
833 const SkMatrix* matrix, | 830 const SkMatrix* matrix, |
834 const SkRect* localRect, | 831 const SkRect* localRect, |
835 const SkMatrix* localMatrix); | 832 const SkMatrix* localMatrix); |
836 virtual void onStencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath: :FillType fill) = 0; | 833 virtual void onStencilPath(const GrPath*, const SkStrokeRec& stroke, SkPath: :FillType fill) = 0; |
834 virtual void onFillPath(const GrPath*, const SkStrokeRec& stroke, SkPath::Fi llType fill, | |
835 const GrDeviceCoordTexture* dstCopy) = 0; | |
837 | 836 |
838 // helpers for reserving vertex and index space. | 837 // helpers for reserving vertex and index space. |
839 bool reserveVertexSpace(size_t vertexSize, | 838 bool reserveVertexSpace(size_t vertexSize, |
840 int vertexCount, | 839 int vertexCount, |
841 void** vertices); | 840 void** vertices); |
842 bool reserveIndexSpace(int indexCount, void** indices); | 841 bool reserveIndexSpace(int indexCount, void** indices); |
843 | 842 |
844 // called by drawIndexed and drawNonIndexed. Use a negative indexCount to | 843 // called by drawIndexed and drawNonIndexed. Use a negative indexCount to |
845 // indicate non-indexed drawing. | 844 // indicate non-indexed drawing. |
846 bool checkDraw(GrPrimitiveType type, int startVertex, | 845 bool checkDraw(GrPrimitiveType type, int startVertex, |
847 int startIndex, int vertexCount, | 846 int startIndex, int vertexCount, |
848 int indexCount) const; | 847 int indexCount) const; |
849 // called when setting a new vert/idx source to unref prev vb/ib | 848 // called when setting a new vert/idx source to unref prev vb/ib |
850 void releasePreviousVertexSource(); | 849 void releasePreviousVertexSource(); |
851 void releasePreviousIndexSource(); | 850 void releasePreviousIndexSource(); |
852 | 851 |
853 // Makes a copy of the dst if it is necessary for the draw. Returns false if a copy is required | 852 // Makes a copy of the dst if it is necessary for the draw. Returns false if a copy is required |
854 // but couldn't be made. Otherwise, returns true. | 853 // but couldn't be made. Otherwise, returns true. |
855 bool setupDstReadIfNecessary(DrawInfo* info); | 854 bool setupDstReadIfNecessary(DrawInfo* info) { |
855 return setupDstReadIfNecessary(&info->fDstCopy, info->getDevBounds()); | |
bsalomon
2013/10/08 14:05:08
nit: this->setup...
Kimmo Kinnunen
2013/10/09 07:07:01
Done.
| |
856 } | |
857 bool setupDstReadIfNecessary(GrDeviceCoordTexture* dstCopy, const SkRect* dr awBounds); | |
856 | 858 |
857 // Check to see if this set of draw commands has been sent out | 859 // Check to see if this set of draw commands has been sent out |
858 virtual bool isIssued(uint32_t drawID) { return true; } | 860 virtual bool isIssued(uint32_t drawID) { return true; } |
859 | 861 |
860 enum { | 862 enum { |
861 kPreallocGeoSrcStateStackCnt = 4, | 863 kPreallocGeoSrcStateStackCnt = 4, |
862 }; | 864 }; |
863 SkSTArray<kPreallocGeoSrcStateStackCnt, GeometrySrcState, true> fGeoSrcState Stack; | 865 SkSTArray<kPreallocGeoSrcStateStackCnt, GeometrySrcState, true> fGeoSrcState Stack; |
864 const GrClipData* fClip; | 866 const GrClipData* fClip; |
865 GrDrawState* fDrawState; | 867 GrDrawState* fDrawState; |
866 GrDrawState fDefaultDraw State; | 868 GrDrawState fDefaultDraw State; |
867 // The context owns us, not vice-versa, so this ptr is not ref'ed by DrawTar get. | 869 // The context owns us, not vice-versa, so this ptr is not ref'ed by DrawTar get. |
868 GrContext* fContext; | 870 GrContext* fContext; |
869 | 871 |
870 typedef SkRefCnt INHERITED; | 872 typedef SkRefCnt INHERITED; |
871 }; | 873 }; |
872 | 874 |
873 #endif | 875 #endif |
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