9fa47cc1c6
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>
90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/*
|
|
* Copyright 2013 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/SkRect.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"
|
|
|
|
// This GM tests out the quick reject bounds of the blur mask filter. It draws
|
|
// four blurred rects around a central clip. The blurred rect geometry outset
|
|
// by the blur radius does not overlap the clip rect so, if the blur clipping
|
|
// just uses the radius, they will be clipped out (and the result will differ
|
|
// from the result if quick reject were disabled. If the blur clipping uses
|
|
// the correct 3 sigma bound then the images with and without quick rejecting
|
|
// will be the same.
|
|
class BlurQuickRejectGM : public skiagm::GM {
|
|
public:
|
|
BlurQuickRejectGM() {}
|
|
|
|
protected:
|
|
SkString onShortName() override {
|
|
return SkString("blurquickreject");
|
|
}
|
|
|
|
SkISize onISize() override {
|
|
return SkISize::Make(kWidth, kHeight);
|
|
}
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
constexpr SkScalar kBlurRadius = SkIntToScalar(20);
|
|
constexpr SkScalar kBoxSize = SkIntToScalar(100);
|
|
|
|
SkRect clipRect = SkRect::MakeXYWH(0, 0, kBoxSize, kBoxSize);
|
|
SkRect blurRects[] = {
|
|
{ -kBoxSize - (kBlurRadius+1), 0, -(kBlurRadius+1), kBoxSize },
|
|
{ 0, -kBoxSize - (kBlurRadius+1), kBoxSize, -(kBlurRadius+1) },
|
|
{ kBoxSize+kBlurRadius+1, 0, 2*kBoxSize+kBlurRadius+1, kBoxSize },
|
|
{ 0, kBoxSize+kBlurRadius+1, kBoxSize, 2*kBoxSize+kBlurRadius+1 }
|
|
};
|
|
SkColor colors[] = {
|
|
SK_ColorRED,
|
|
SK_ColorGREEN,
|
|
SK_ColorBLUE,
|
|
SK_ColorYELLOW,
|
|
};
|
|
SkASSERT(SK_ARRAY_COUNT(colors) == SK_ARRAY_COUNT(blurRects));
|
|
|
|
SkPaint hairlinePaint;
|
|
hairlinePaint.setStyle(SkPaint::kStroke_Style);
|
|
hairlinePaint.setColor(SK_ColorWHITE);
|
|
hairlinePaint.setStrokeWidth(0);
|
|
|
|
SkPaint blurPaint;
|
|
blurPaint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle,
|
|
SkBlurMask::ConvertRadiusToSigma(kBlurRadius)));
|
|
|
|
canvas->clear(SK_ColorBLACK);
|
|
canvas->save();
|
|
canvas->translate(kBoxSize, kBoxSize);
|
|
canvas->drawRect(clipRect, hairlinePaint);
|
|
canvas->clipRect(clipRect);
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(blurRects); ++i) {
|
|
blurPaint.setColor(colors[i]);
|
|
canvas->drawRect(blurRects[i], blurPaint);
|
|
canvas->drawRect(blurRects[i], hairlinePaint);
|
|
}
|
|
canvas->restore();
|
|
}
|
|
|
|
private:
|
|
inline static constexpr int kWidth = 300;
|
|
inline static constexpr int kHeight = 300;
|
|
|
|
using INHERITED = GM;
|
|
};
|
|
|
|
DEF_GM( return new BlurQuickRejectGM(); )
|