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 srcM.fImage = NULL;
27 if (!filter->filterMask(&dstM, srcM, matrix, &margin)) {
28 return false;
29 }
30 storage = *clipBounds;
31 storage.inset(-margin.fX, -margin.fY);
32 clipBounds = &storage;
33 }
34
35 return this->onRasterize(fillPath, matrix, clipBounds, mask, mode);
36 }
37
38 /* Our default implementation of the virtual method just scan converts
39 */
onRasterize(const SkPath & fillPath,const SkMatrix & matrix,const SkIRect * clipBounds,SkMask * mask,SkMask::CreateMode mode) const40 bool SkRasterizer::onRasterize(const SkPath& fillPath, const SkMatrix& matrix,
41 const SkIRect* clipBounds,
42 SkMask* mask, SkMask::CreateMode mode) const {
43 SkPath devPath;
44
45 fillPath.transform(matrix, &devPath);
46 return SkDraw::DrawToMask(devPath, clipBounds, NULL, NULL, mask, mode,
47 SkPaint::kFill_Style);
48 }
49