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comparison: gfx/skia/trunk/src/core/SkScan.h
gfx/skia/trunk/src/core/SkScan.h
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
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| -1:000000000000 | 0:4ec507537136 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 The Android Open Source Project | |
| 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 | |
| 10 #ifndef SkScan_DEFINED | |
| 11 #define SkScan_DEFINED | |
| 12 | |
| 13 #include "SkRect.h" | |
| 14 | |
| 15 class SkRasterClip; | |
| 16 class SkRegion; | |
| 17 class SkBlitter; | |
| 18 class SkPath; | |
| 19 | |
| 20 /** Defines a fixed-point rectangle, identical to the integer SkIRect, but its | |
| 21 coordinates are treated as SkFixed rather than int32_t. | |
| 22 */ | |
| 23 typedef SkIRect SkXRect; | |
| 24 | |
| 25 class SkScan { | |
| 26 public: | |
| 27 static void FillPath(const SkPath&, const SkIRect&, SkBlitter*); | |
| 28 | |
| 29 /////////////////////////////////////////////////////////////////////////// | |
| 30 // rasterclip | |
| 31 | |
| 32 static void FillIRect(const SkIRect&, const SkRasterClip&, SkBlitter*); | |
| 33 static void FillXRect(const SkXRect&, const SkRasterClip&, SkBlitter*); | |
| 34 static void FillRect(const SkRect&, const SkRasterClip&, SkBlitter*); | |
| 35 static void AntiFillRect(const SkRect&, const SkRasterClip&, SkBlitter*); | |
| 36 static void AntiFillXRect(const SkXRect&, const SkRasterClip&, SkBlitter*); | |
| 37 static void FillPath(const SkPath&, const SkRasterClip&, SkBlitter*); | |
| 38 static void AntiFillPath(const SkPath&, const SkRasterClip&, SkBlitter*); | |
| 39 static void FrameRect(const SkRect&, const SkPoint& strokeSize, | |
| 40 const SkRasterClip&, SkBlitter*); | |
| 41 static void AntiFrameRect(const SkRect&, const SkPoint& strokeSize, | |
| 42 const SkRasterClip&, SkBlitter*); | |
| 43 static void FillTriangle(const SkPoint pts[], const SkRasterClip&, SkBlitter*); | |
| 44 static void HairLine(const SkPoint&, const SkPoint&, const SkRasterClip&, | |
| 45 SkBlitter*); | |
| 46 static void AntiHairLine(const SkPoint&, const SkPoint&, const SkRasterClip&, | |
| 47 SkBlitter*); | |
| 48 static void HairRect(const SkRect&, const SkRasterClip&, SkBlitter*); | |
| 49 static void AntiHairRect(const SkRect&, const SkRasterClip&, SkBlitter*); | |
| 50 static void HairPath(const SkPath&, const SkRasterClip&, SkBlitter*); | |
| 51 static void AntiHairPath(const SkPath&, const SkRasterClip&, SkBlitter*); | |
| 52 | |
| 53 private: | |
| 54 friend class SkAAClip; | |
| 55 friend class SkRegion; | |
| 56 | |
| 57 static void FillIRect(const SkIRect&, const SkRegion* clip, SkBlitter*); | |
| 58 static void FillXRect(const SkXRect&, const SkRegion* clip, SkBlitter*); | |
| 59 static void FillRect(const SkRect&, const SkRegion* clip, SkBlitter*); | |
| 60 static void AntiFillRect(const SkRect&, const SkRegion* clip, SkBlitter*); | |
| 61 static void AntiFillXRect(const SkXRect&, const SkRegion*, SkBlitter*); | |
| 62 static void FillPath(const SkPath&, const SkRegion& clip, SkBlitter*); | |
| 63 static void AntiFillPath(const SkPath&, const SkRegion& clip, SkBlitter*, | |
| 64 bool forceRLE = false); | |
| 65 static void FillTriangle(const SkPoint pts[], const SkRegion*, SkBlitter*); | |
| 66 | |
| 67 static void AntiFrameRect(const SkRect&, const SkPoint& strokeSize, | |
| 68 const SkRegion*, SkBlitter*); | |
| 69 static void HairLineRgn(const SkPoint&, const SkPoint&, const SkRegion*, | |
| 70 SkBlitter*); | |
| 71 static void AntiHairLineRgn(const SkPoint&, const SkPoint&, const SkRegion*, | |
| 72 SkBlitter*); | |
| 73 }; | |
| 74 | |
| 75 /** Assign an SkXRect from a SkIRect, by promoting the src rect's coordinates | |
| 76 from int to SkFixed. Does not check for overflow if the src coordinates | |
| 77 exceed 32K | |
| 78 */ | |
| 79 static inline void XRect_set(SkXRect* xr, const SkIRect& src) { | |
| 80 xr->fLeft = SkIntToFixed(src.fLeft); | |
| 81 xr->fTop = SkIntToFixed(src.fTop); | |
| 82 xr->fRight = SkIntToFixed(src.fRight); | |
| 83 xr->fBottom = SkIntToFixed(src.fBottom); | |
| 84 } | |
| 85 | |
| 86 /** Assign an SkXRect from a SkRect, by promoting the src rect's coordinates | |
| 87 from SkScalar to SkFixed. Does not check for overflow if the src coordinates | |
| 88 exceed 32K | |
| 89 */ | |
| 90 static inline void XRect_set(SkXRect* xr, const SkRect& src) { | |
| 91 xr->fLeft = SkScalarToFixed(src.fLeft); | |
| 92 xr->fTop = SkScalarToFixed(src.fTop); | |
| 93 xr->fRight = SkScalarToFixed(src.fRight); | |
| 94 xr->fBottom = SkScalarToFixed(src.fBottom); | |
| 95 } | |
| 96 | |
| 97 /** Round the SkXRect coordinates, and store the result in the SkIRect. | |
| 98 */ | |
| 99 static inline void XRect_round(const SkXRect& xr, SkIRect* dst) { | |
| 100 dst->fLeft = SkFixedRoundToInt(xr.fLeft); | |
| 101 dst->fTop = SkFixedRoundToInt(xr.fTop); | |
| 102 dst->fRight = SkFixedRoundToInt(xr.fRight); | |
| 103 dst->fBottom = SkFixedRoundToInt(xr.fBottom); | |
| 104 } | |
| 105 | |
| 106 /** Round the SkXRect coordinates out (i.e. use floor for left/top, and ceiling | |
| 107 for right/bottom), and store the result in the SkIRect. | |
| 108 */ | |
| 109 static inline void XRect_roundOut(const SkXRect& xr, SkIRect* dst) { | |
| 110 dst->fLeft = SkFixedFloorToInt(xr.fLeft); | |
| 111 dst->fTop = SkFixedFloorToInt(xr.fTop); | |
| 112 dst->fRight = SkFixedCeilToInt(xr.fRight); | |
| 113 dst->fBottom = SkFixedCeilToInt(xr.fBottom); | |
| 114 } | |
| 115 | |
| 116 #endif |
