skia2/gm/blurcircles.cpp
Herb Derby c37b386886 Replace SK_ARRAY_COUNT with std::size() for skia/gm
Note: in variedtext.cpp:66 changed static_assert to SkASSERT.

Change-Id: I853a2e5563c90c9dde5d6ba5443cc73b664b493d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/551876
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
2022-06-21 18:09:30 +00:00

79 lines
2.3 KiB
C++

/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkBlurTypes.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkMaskFilter.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
#include "src/core/SkBlurMask.h"
class BlurCirclesGM : public skiagm::GM {
public:
BlurCirclesGM() { }
protected:
bool runAsBench() const override { return true; }
SkString onShortName() override {
return SkString("blurcircles");
}
SkISize onISize() override {
return SkISize::Make(950, 950);
}
void onOnceBeforeDraw() override {
const float blurRadii[kNumBlurs] = {1.f, 5.f, 10.f, 20.f};
for (int i = 0; i < kNumBlurs; ++i) {
fBlurFilters[i] = SkMaskFilter::MakeBlur(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(blurRadii[i]));
}
}
void onDraw(SkCanvas* canvas) override {
canvas->scale(1.5f, 1.5f);
canvas->translate(50,50);
const float circleRadii[] = {5.f, 10.f, 25.f, 50.f};
for (size_t i = 0; i < kNumBlurs; ++i) {
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->translate(0, 150.f*i);
for (size_t j = 0; j < std::size(circleRadii); ++j) {
SkPaint paint;
paint.setColor(SK_ColorBLACK);
paint.setMaskFilter(fBlurFilters[i]);
static constexpr SkPoint kCenter = {50.f, 50.f};
// Throw a rotation in the mix to make sure GPU fast path handles it correctly.
canvas->save();
canvas->rotate(j*22.f, kCenter.fX, kCenter.fY);
canvas->drawCircle(kCenter, circleRadii[j], paint);
canvas->restore();
canvas->translate(150.f, 0.f);
}
}
}
private:
inline static constexpr int kNumBlurs = 4;
sk_sp<SkMaskFilter> fBlurFilters[kNumBlurs];
using INHERITED = skiagm::GM;
};
DEF_GM(return new BlurCirclesGM();)