gfx/skia/skia/src/core/SkRasterizer.cpp
author Lee Salzman <lsalzman@mozilla.com>
Tue, 09 Feb 2016 13:38:06 -0500
changeset 283658 159e0a5a653f2789e0c9b94f41501a4a44f7cb34
parent 276967 a3503094c48d771e020f34f35b8945cd525d40e8
child 295372 cf560124d28f3737353c105eec79677a7731d2e8
permissions -rw-r--r--
Bug 1246756 - part 3 - update Skia to m49 branch. r=jrmuizel


/*
 * Copyright 2006 The Android Open Source Project
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#include "SkRasterizer.h"
#include "SkDraw.h"
#include "SkMaskFilter.h"
#include "SkPath.h"

bool SkRasterizer::rasterize(const SkPath& fillPath, const SkMatrix& matrix,
                             const SkIRect* clipBounds, SkMaskFilter* filter,
                             SkMask* mask, SkMask::CreateMode mode) const {
    SkIRect storage;

    if (clipBounds && filter && SkMask::kJustRenderImage_CreateMode != mode) {
        SkIPoint    margin;
        SkMask      srcM, dstM;

        srcM.fFormat = SkMask::kA8_Format;
        srcM.fBounds.set(0, 0, 1, 1);
        if (!filter->filterMask(&dstM, srcM, matrix, &margin)) {
            return false;
        }
        storage = clipBounds->makeOutset(margin.fX, margin.fY);
        clipBounds = &storage;
    }

    return this->onRasterize(fillPath, matrix, clipBounds, mask, mode);
}

/*  Our default implementation of the virtual method just scan converts
*/
bool SkRasterizer::onRasterize(const SkPath& fillPath, const SkMatrix& matrix,
                             const SkIRect* clipBounds,
                             SkMask* mask, SkMask::CreateMode mode) const {
    SkPath  devPath;

    fillPath.transform(matrix, &devPath);
    return SkDraw::DrawToMask(devPath, clipBounds, nullptr, nullptr, mask, mode,
                              SkPaint::kFill_Style);
}