The Tor Browser / file comparison
comparison: gfx/skia/trunk/include/utils/SkBoundaryPatch.h
gfx/skia/trunk/include/utils/SkBoundaryPatch.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:ffb63afa5872 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 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 #ifndef SkBoundaryPatch_DEFINED | |
| 9 #define SkBoundaryPatch_DEFINED | |
| 10 | |
| 11 #include "SkPoint.h" | |
| 12 #include "SkRefCnt.h" | |
| 13 | |
| 14 class SkBoundary : public SkRefCnt { | |
| 15 public: | |
| 16 SK_DECLARE_INST_COUNT(SkBoundary) | |
| 17 | |
| 18 // These must be 0, 1, 2, 3 for efficiency in the subclass implementations | |
| 19 enum Edge { | |
| 20 kTop = 0, | |
| 21 kRight = 1, | |
| 22 kBottom = 2, | |
| 23 kLeft = 3 | |
| 24 }; | |
| 25 // Edge index goes clockwise around the boundary, beginning at the "top" | |
| 26 virtual SkPoint eval(Edge, SkScalar unitInterval) = 0; | |
| 27 | |
| 28 private: | |
| 29 typedef SkRefCnt INHERITED; | |
| 30 }; | |
| 31 | |
| 32 class SkBoundaryPatch { | |
| 33 public: | |
| 34 SkBoundaryPatch(); | |
| 35 ~SkBoundaryPatch(); | |
| 36 | |
| 37 SkBoundary* getBoundary() const { return fBoundary; } | |
| 38 SkBoundary* setBoundary(SkBoundary*); | |
| 39 | |
| 40 SkPoint eval(SkScalar unitU, SkScalar unitV); | |
| 41 bool evalPatch(SkPoint verts[], int rows, int cols); | |
| 42 | |
| 43 private: | |
| 44 SkBoundary* fBoundary; | |
| 45 }; | |
| 46 | |
| 47 //////////////////////////////////////////////////////////////////////// | |
| 48 | |
| 49 class SkLineBoundary : public SkBoundary { | |
| 50 public: | |
| 51 SkPoint fPts[4]; | |
| 52 | |
| 53 // override | |
| 54 virtual SkPoint eval(Edge, SkScalar); | |
| 55 }; | |
| 56 | |
| 57 class SkCubicBoundary : public SkBoundary { | |
| 58 public: | |
| 59 // the caller sets the first 12 entries. The 13th is used by the impl. | |
| 60 SkPoint fPts[13]; | |
| 61 | |
| 62 // override | |
| 63 virtual SkPoint eval(Edge, SkScalar); | |
| 64 }; | |
| 65 | |
| 66 #endif |
