skia2/gm/blurcircles.cpp
Brian Salomon 9fa47cc1c6 Make class members that are static constexpr also be inline.
This is in prep for compiling with -std=c++14 and -Wno-c++17-extensions
when building with clang. Chrome has encountered problems with
third_party headers that are included both in Skia and other Chrome
sources that produce different code based on whether preprocessor macros
indicate a C++14 or C++17 compilation.

In C++17 they are already inline implicitly. When compiling with C++14
we can get linker errors unless they're explicitly inlined or defined
outside the class. With -Wno-c++17-extensions we can explicitly inline
them in the C++14 build because the warning that would be generated
about using a C++17 language extension is suppressed.

We cannot do this in public headers because we support compiling with
C++14 without suppressing the C++17 language extension warnings.

Bug: chromium:1257145
Change-Id: Iaf5f4c62a398f98dd4ca9b7dfb86f2d5cab21d66
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/457498
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
2021-10-11 16:22:59 +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 < SK_ARRAY_COUNT(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();)