gfx/skia/trunk/include/utils/SkBoundaryPatch.h@6474c204b198 (annotated)
gfx/skia/trunk/include/utils/SkBoundaryPatch.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | |
| michael@0 | 2 | /* |
| michael@0 | 3 | * Copyright 2011 Google Inc. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 6 | * found in the LICENSE file. |
| michael@0 | 7 | */ |
| michael@0 | 8 | #ifndef SkBoundaryPatch_DEFINED |
| michael@0 | 9 | #define SkBoundaryPatch_DEFINED |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SkPoint.h" |
| michael@0 | 12 | #include "SkRefCnt.h" |
| michael@0 | 13 | |
| michael@0 | 14 | class SkBoundary : public SkRefCnt { |
| michael@0 | 15 | public: |
| michael@0 | 16 | SK_DECLARE_INST_COUNT(SkBoundary) |
| michael@0 | 17 | |
| michael@0 | 18 | // These must be 0, 1, 2, 3 for efficiency in the subclass implementations |
| michael@0 | 19 | enum Edge { |
| michael@0 | 20 | kTop = 0, |
| michael@0 | 21 | kRight = 1, |
| michael@0 | 22 | kBottom = 2, |
| michael@0 | 23 | kLeft = 3 |
| michael@0 | 24 | }; |
| michael@0 | 25 | // Edge index goes clockwise around the boundary, beginning at the "top" |
| michael@0 | 26 | virtual SkPoint eval(Edge, SkScalar unitInterval) = 0; |
| michael@0 | 27 | |
| michael@0 | 28 | private: |
| michael@0 | 29 | typedef SkRefCnt INHERITED; |
| michael@0 | 30 | }; |
| michael@0 | 31 | |
| michael@0 | 32 | class SkBoundaryPatch { |
| michael@0 | 33 | public: |
| michael@0 | 34 | SkBoundaryPatch(); |
| michael@0 | 35 | ~SkBoundaryPatch(); |
| michael@0 | 36 | |
| michael@0 | 37 | SkBoundary* getBoundary() const { return fBoundary; } |
| michael@0 | 38 | SkBoundary* setBoundary(SkBoundary*); |
| michael@0 | 39 | |
| michael@0 | 40 | SkPoint eval(SkScalar unitU, SkScalar unitV); |
| michael@0 | 41 | bool evalPatch(SkPoint verts[], int rows, int cols); |
| michael@0 | 42 | |
| michael@0 | 43 | private: |
| michael@0 | 44 | SkBoundary* fBoundary; |
| michael@0 | 45 | }; |
| michael@0 | 46 | |
| michael@0 | 47 | //////////////////////////////////////////////////////////////////////// |
| michael@0 | 48 | |
| michael@0 | 49 | class SkLineBoundary : public SkBoundary { |
| michael@0 | 50 | public: |
| michael@0 | 51 | SkPoint fPts[4]; |
| michael@0 | 52 | |
| michael@0 | 53 | // override |
| michael@0 | 54 | virtual SkPoint eval(Edge, SkScalar); |
| michael@0 | 55 | }; |
| michael@0 | 56 | |
| michael@0 | 57 | class SkCubicBoundary : public SkBoundary { |
| michael@0 | 58 | public: |
| michael@0 | 59 | // the caller sets the first 12 entries. The 13th is used by the impl. |
| michael@0 | 60 | SkPoint fPts[13]; |
| michael@0 | 61 | |
| michael@0 | 62 | // override |
| michael@0 | 63 | virtual SkPoint eval(Edge, SkScalar); |
| michael@0 | 64 | }; |
| michael@0 | 65 | |
| michael@0 | 66 | #endif |
