gfx/skia/trunk/src/core/SkRasterizer.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/core/SkRasterizer.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,48 @@
     1.4 +
     1.5 +/*
     1.6 + * Copyright 2006 The Android Open Source Project
     1.7 + *
     1.8 + * Use of this source code is governed by a BSD-style license that can be
     1.9 + * found in the LICENSE file.
    1.10 + */
    1.11 +
    1.12 +
    1.13 +#include "SkRasterizer.h"
    1.14 +#include "SkDraw.h"
    1.15 +#include "SkMaskFilter.h"
    1.16 +#include "SkPath.h"
    1.17 +
    1.18 +bool SkRasterizer::rasterize(const SkPath& fillPath, const SkMatrix& matrix,
    1.19 +                             const SkIRect* clipBounds, SkMaskFilter* filter,
    1.20 +                             SkMask* mask, SkMask::CreateMode mode) const {
    1.21 +    SkIRect storage;
    1.22 +
    1.23 +    if (clipBounds && filter && SkMask::kJustRenderImage_CreateMode != mode) {
    1.24 +        SkIPoint    margin;
    1.25 +        SkMask      srcM, dstM;
    1.26 +
    1.27 +        srcM.fFormat = SkMask::kA8_Format;
    1.28 +        srcM.fBounds.set(0, 0, 1, 1);
    1.29 +        srcM.fImage = NULL;
    1.30 +        if (!filter->filterMask(&dstM, srcM, matrix, &margin)) {
    1.31 +            return false;
    1.32 +        }
    1.33 +        storage = *clipBounds;
    1.34 +        storage.inset(-margin.fX, -margin.fY);
    1.35 +        clipBounds = &storage;
    1.36 +    }
    1.37 +
    1.38 +    return this->onRasterize(fillPath, matrix, clipBounds, mask, mode);
    1.39 +}
    1.40 +
    1.41 +/*  Our default implementation of the virtual method just scan converts
    1.42 +*/
    1.43 +bool SkRasterizer::onRasterize(const SkPath& fillPath, const SkMatrix& matrix,
    1.44 +                             const SkIRect* clipBounds,
    1.45 +                             SkMask* mask, SkMask::CreateMode mode) const {
    1.46 +    SkPath  devPath;
    1.47 +
    1.48 +    fillPath.transform(matrix, &devPath);
    1.49 +    return SkDraw::DrawToMask(devPath, clipBounds, NULL, NULL, mask, mode,
    1.50 +                              SkPaint::kFill_Style);
    1.51 +}

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