79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/*
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* Copyright 2014 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/SkBlurTypes.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkMaskFilter.h"
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#include "include/core/SkPaint.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/SkTypes.h"
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#include "src/core/SkBlurMask.h"
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class BlurCirclesGM : public skiagm::GM {
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public:
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BlurCirclesGM() { }
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protected:
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bool runAsBench() const override { return true; }
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SkString onShortName() override {
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return SkString("blurcircles");
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}
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SkISize onISize() override {
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return SkISize::Make(950, 950);
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}
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void onOnceBeforeDraw() override {
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const float blurRadii[kNumBlurs] = {1.f, 5.f, 10.f, 20.f};
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for (int i = 0; i < kNumBlurs; ++i) {
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fBlurFilters[i] = SkMaskFilter::MakeBlur(
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kNormal_SkBlurStyle,
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SkBlurMask::ConvertRadiusToSigma(blurRadii[i]));
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}
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}
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void onDraw(SkCanvas* canvas) override {
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canvas->scale(1.5f, 1.5f);
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canvas->translate(50,50);
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const float circleRadii[] = {5.f, 10.f, 25.f, 50.f};
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for (size_t i = 0; i < kNumBlurs; ++i) {
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SkAutoCanvasRestore autoRestore(canvas, true);
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canvas->translate(0, 150.f*i);
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for (size_t j = 0; j < SK_ARRAY_COUNT(circleRadii); ++j) {
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SkPaint paint;
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paint.setColor(SK_ColorBLACK);
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paint.setMaskFilter(fBlurFilters[i]);
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static constexpr SkPoint kCenter = {50.f, 50.f};
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// Throw a rotation in the mix to make sure GPU fast path handles it correctly.
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canvas->save();
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canvas->rotate(j*22.f, kCenter.fX, kCenter.fY);
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canvas->drawCircle(kCenter, circleRadii[j], paint);
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canvas->restore();
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canvas->translate(150.f, 0.f);
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}
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}
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}
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private:
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inline static constexpr int kNumBlurs = 4;
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sk_sp<SkMaskFilter> fBlurFilters[kNumBlurs];
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using INHERITED = skiagm::GM;
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};
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DEF_GM(return new BlurCirclesGM();)
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