Line data    Source code

       1             : /*
       2             :  * Copyright 2017 Google Inc.
       3             :  *
       4             :  * Use of this source code is governed by a BSD-style license that can be
       5             :  * found in the LICENSE file.
       6             :  */
       7             : 
       8             : #ifndef SkThreadedBMPDevice_DEFINED
       9             : #define SkThreadedBMPDevice_DEFINED
      10             : 
      11             : #include "SkDraw.h"
      12             : #include "SkBitmapDevice.h"
      13             : 
      14             : ///////////////////////////////////////////////////////////////////////////////
      15           0 : class SkThreadedBMPDevice : public SkBitmapDevice {
      16             : public:
      17             :     SkThreadedBMPDevice(const SkBitmap& bitmap, int threads);
      18             : 
      19             : protected:
      20             :     void drawPaint(const SkPaint& paint) override;
      21             :     void drawPoints(SkCanvas::PointMode mode, size_t count,
      22             :                             const SkPoint[], const SkPaint& paint) override;
      23             :     void drawRect(const SkRect& r, const SkPaint& paint) override;
      24             :     void drawRRect(const SkRRect& rr, const SkPaint& paint) override;
      25             : 
      26             :     void drawPath(const SkPath&, const SkPaint&, const SkMatrix* prePathMatrix,
      27             :                   bool pathIsMutable) override;
      28             :     void drawBitmap(const SkBitmap&, const SkMatrix&, const SkPaint&) override;
      29             :     void drawSprite(const SkBitmap&, int x, int y, const SkPaint&) override;
      30             : 
      31             :     void drawText(const void* text, size_t len, SkScalar x, SkScalar y,
      32             :                   const SkPaint&) override;
      33             :     void drawPosText(const void* text, size_t len, const SkScalar pos[],
      34             :                      int scalarsPerPos, const SkPoint& offset, const SkPaint& paint) override;
      35             :     void drawVertices(const SkVertices*, SkBlendMode, const SkPaint&) override;
      36             :     void drawDevice(SkBaseDevice*, int x, int y, const SkPaint&) override;
      37             : 
      38             :     void flush() override;
      39             : 
      40             : private:
      41           0 :     struct DrawElement {
      42             :         SkIRect fDrawBounds;
      43             :         std::function<void(const SkIRect& threadBounds)> fDrawFn;
      44             :     };
      45             : 
      46             :     struct DrawState;
      47             : 
      48             :     SkIRect transformDrawBounds(const SkRect& drawBounds) const;
      49             : 
      50             :     const int fThreadCnt;
      51             :     SkTArray<SkIRect> fThreadBounds;
      52             :     SkTArray<DrawElement> fQueue;
      53             : 
      54             :     typedef SkBitmapDevice INHERITED;
      55             : };
      56             : 
      57             : #endif // SkThreadedBMPDevice_DEFINED