78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkImageFilter.h"
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#include "include/core/SkImageInfo.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRRect.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkSurface.h"
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#include "include/effects/SkImageFilters.h"
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#include "tools/ToolUtils.h"
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#define WIDTH 512
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#define HEIGHT 512
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namespace skiagm {
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class ComplexClipBlurTiledGM : public GM {
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public:
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ComplexClipBlurTiledGM() {
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}
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protected:
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SkString onShortName() override {
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return SkString("complexclip_blur_tiled");
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}
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SkISize onISize() override {
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return SkISize::Make(WIDTH, HEIGHT);
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}
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void onDraw(SkCanvas* canvas) override {
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SkPaint blurPaint;
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blurPaint.setImageFilter(SkImageFilters::Blur(5.0f, 5.0f, nullptr));
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const SkScalar tileSize = SkIntToScalar(128);
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SkRect bounds = canvas->getLocalClipBounds();
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int ts = SkScalarCeilToInt(tileSize);
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SkImageInfo info = SkImageInfo::MakeN32Premul(ts, ts);
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auto tileSurface(ToolUtils::makeSurface(canvas, info));
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SkCanvas* tileCanvas = tileSurface->getCanvas();
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for (SkScalar y = bounds.top(); y < bounds.bottom(); y += tileSize) {
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for (SkScalar x = bounds.left(); x < bounds.right(); x += tileSize) {
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tileCanvas->save();
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tileCanvas->clear(0);
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tileCanvas->translate(-x, -y);
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SkRect rect = SkRect::MakeWH(WIDTH, HEIGHT);
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tileCanvas->saveLayer(&rect, &blurPaint);
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SkRRect rrect = SkRRect::MakeRectXY(rect.makeInset(20, 20), 25, 25);
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tileCanvas->clipRRect(rrect, SkClipOp::kDifference, true);
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SkPaint paint;
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tileCanvas->drawRect(rect, paint);
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tileCanvas->restore();
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tileCanvas->restore();
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canvas->drawImage(tileSurface->makeImageSnapshot().get(), x, y);
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}
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}
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}
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private:
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using INHERITED = GM;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ComplexClipBlurTiledGM;)
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} // namespace skiagm
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