src/core/SkBBoxRecord.h - Issue 617953002: Strip old backend recording down to essentials

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Issue 617953002: Strip old backend recording down to essentials (Closed) Base URL: https://skia.googlesource.com/skia.git@master

Patch Set: debug-only Created 6 years, 2 months ago

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1

2 /*

3 * Copyright 2012 Google Inc.

4 *

5 * Use of this source code is governed by a BSD-style license that can be

6 * found in the LICENSE file.

7 */

8

9 #ifndef SkBBoxRecord_DEFINED

10 #define SkBBoxRecord_DEFINED

11

12 #include "SkPictureRecord.h"

13 #include "SkTDArray.h"

14

15 /**

16 * This is an abstract SkPictureRecord subclass that intercepts draw calls and computes an

17 * axis-aligned bounding box for each draw that it sees, subclasses implement h andleBBox()

18 * which will be called every time we get a new bounding box.

19 */

20 class SkBBoxRecord : public SkPictureRecord {

21 public:

22

23 SkBBoxRecord(const SkISize& size, uint32_t recordFlags)

24 : INHERITED(size, recordFlags) {

25 }

26 virtual ~SkBBoxRecord();

27

28 /**

29 * This is called each time we get a bounding box, it will be axis-aligned,

30 * in device coordinates, and expanded to include stroking, shadows, etc.

31 */

32 virtual void handleBBox(const SkRect& bbox) = 0;

33

34 virtual void drawOval(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE;

35 virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRI DE;

36 virtual void drawRect(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE;

37 virtual void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;

38 virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],

39 const SkPaint& paint) SK_OVERRIDE;

40 virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;

41 virtual void clear(SkColor) SK_OVERRIDE;

42 virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,

43 const SkPaint* paint = NULL) SK_OVERRIDE;

44 virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,

45 const SkRect& dst, const SkPaint* paint,

46 DrawBitmapRectFlags flags) SK_OVERRIDE;

47 virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& mat,

48 const SkPaint* paint) SK_OVERRIDE;

49 virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,

50 const SkRect& dst, const SkPaint* paint) SK_OVER RIDE;

51 virtual void drawSprite(const SkBitmap& bitmap, int left, int top,

52 const SkPaint* paint) SK_OVERRIDE;

53 virtual void drawVertices(VertexMode mode, int vertexCount,

54 const SkPoint vertices[], const SkPoint texs[],

55 const SkColor colors[], SkXfermode* xfer,

56 const uint16_t indices[], int indexCount,

57 const SkPaint& paint) SK_OVERRIDE;

58

59 protected:

60 virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK _OVERRIDE;

61 virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkS calar y,

62 const SkPaint&) SK_OVERRIDE;

63 virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoin t pos[],

64 const SkPaint&) SK_OVERRIDE;

65 virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkSca lar xpos[],

66 SkScalar constY, const SkPaint&) SK_OVERRIDE;

67 virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkP ath& path,

68 const SkMatrix* matrix, const SkPaint&) SK_OVE RRIDE;

69 virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,

70 const SkPaint& paint) SK_OVERRIDE;

71 virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],

72 const SkPoint texCoords[4], SkXfermode* xmode,

73 const SkPaint& paint) SK_OVERRIDE;

74 virtual void onDrawPicture(const SkPicture, const SkMatrix, const SkPaint* ) SK_OVERRIDE;

75 virtual void willSave() SK_OVERRIDE;

76 virtual SaveLayerStrategy willSaveLayer(const SkRect, const SkPaint, SaveF lags) SK_OVERRIDE;

77 virtual void willRestore() SK_OVERRIDE;

78

79 private:

80 /**

81 * Takes a bounding box in current canvas view space, accounts for stroking and effects, and

82 * computes an axis-aligned bounding box in device coordinates, then passes it to handleBBox()

83 * returns false if the draw is completely clipped out, and may safely be ig nored.

84 **/

85 bool transformBounds(const SkRect& bounds, const SkPaint* paint);

86

87 /**

88 * Paints from currently-active saveLayers that need to be applied to boundi ng boxes of all

89 * primitives drawn inside them. We own these pointers.

90 **/

91 SkTDArray<const SkPaint*> fSaveStack;

92

93 typedef SkPictureRecord INHERITED;

94 };

95

96 #endif

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