1
2 /*
3 * Copyright 2006 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 #include "SkRasterizer.h"
11 #include "SkDraw.h"
12 #include "SkMaskFilter.h"
13 #include "SkPath.h"
14
rasterize(const SkPath & fillPath,const SkMatrix & matrix,const SkIRect * clipBounds,SkMaskFilter * filter,SkMask * mask,SkMask::CreateMode mode) const15 bool SkRasterizer::rasterize(const SkPath& fillPath, const SkMatrix& matrix,
16 const SkIRect* clipBounds, SkMaskFilter* filter,
17 SkMask* mask, SkMask::CreateMode mode) const {
18 SkIRect storage;
19
20 if (clipBounds && filter && SkMask::kJustRenderImage_CreateMode != mode) {
21 SkIPoint margin;
22 SkMask srcM, dstM;
23
24 srcM.fFormat = SkMask::kA8_Format;
25 srcM.fBounds.set(0, 0, 1, 1);
26 if (!filter->filterMask(&dstM, srcM, matrix, &margin)) {
27 return false;
28 }
29 storage = clipBounds->makeOutset(margin.fX, margin.fY);
30 clipBounds = &storage;
31 }
32
33 return this->onRasterize(fillPath, matrix, clipBounds, mask, mode);
34 }
35
36 /* Our default implementation of the virtual method just scan converts
37 */
onRasterize(const SkPath & fillPath,const SkMatrix & matrix,const SkIRect * clipBounds,SkMask * mask,SkMask::CreateMode mode) const38 bool SkRasterizer::onRasterize(const SkPath& fillPath, const SkMatrix& matrix,
39 const SkIRect* clipBounds,
40 SkMask* mask, SkMask::CreateMode mode) const {
41 SkPath devPath;
42
43 fillPath.transform(matrix, &devPath);
44 return SkDraw::DrawToMask(devPath, clipBounds, nullptr, nullptr, mask, mode,
45 SkPaint::kFill_Style);
46 }
47