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 15 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 */ 40 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