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-rw-r--r--skia/sgl/SkMaskFilter.cpp62
1 files changed, 62 insertions, 0 deletions
diff --git a/skia/sgl/SkMaskFilter.cpp b/skia/sgl/SkMaskFilter.cpp
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+++ b/skia/sgl/SkMaskFilter.cpp
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+/* libs/graphics/sgl/SkMaskFilter.cpp
+**
+** Copyright 2006, Google Inc.
+**
+** 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;
+}
+
+