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/* libs/graphics/sgl/SkMaskFilter.cpp
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include "SkMaskFilter.h"
#include "SkBlitter.h"
#include "SkBounder.h"
#include "SkBuffer.h"
#include "SkDraw.h"
#include "SkRegion.h"
bool SkMaskFilter::filterMask(SkMask*, const SkMask&, const SkMatrix&, SkIPoint*)
{
return false;
}
bool SkMaskFilter::filterPath(const SkPath& devPath, const SkMatrix& matrix,
const SkRegion& clip, SkBounder* bounder,
SkBlitter* blitter)
{
SkMask srcM, dstM;
if (!SkDraw::DrawToMask(devPath, &clip.getBounds(), this, &matrix, &srcM,
SkMask::kComputeBoundsAndRenderImage_CreateMode))
{
return false;
}
SkAutoMaskImage autoSrc(&srcM, false);
if (!this->filterMask(&dstM, srcM, matrix, NULL))
return false;
SkAutoMaskImage autoDst(&dstM, false);
SkRegion::Cliperator clipper(clip, dstM.fBounds);
if (!clipper.done() && (bounder == NULL || bounder->doIRect(dstM.fBounds)))
{
const SkIRect& cr = clipper.rect();
do {
blitter->blitMask(dstM, cr);
clipper.next();
} while (!clipper.done());
}
return true;
}
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