dbfd7ab108
'static const' means, there must be at most one of these, and initialize it at compile time if possible or runtime if necessary. This leads to unexpected code execution, and TSAN* will complain about races on the guard variables. Generally 'constexpr' or 'const' are better choices. Neither can cause races: they're either intialized at compile time (constexpr) or intialized each time independently (const). This CL prefers constexpr where possible, and uses const where not. It even prefers constexpr over const where they don't make a difference... I want to have lots of examples of constexpr for people to see and mimic. The scoped-to-class static has nothing to do with any of this, and is not changed. * Not yet on the bots, which use an older TSAN. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2300623005 Review-Url: https://codereview.chromium.org/2300623005
119 lines
4.6 KiB
C++
119 lines
4.6 KiB
C++
/*
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* Copyright 2011 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.h"
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#include "SkBlurMask.h"
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#include "SkBlurMaskFilter.h"
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#include "SkPath.h"
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DEF_SIMPLE_GM_BG(blurs, canvas, 700, 500, sk_tool_utils::color_to_565(0xFFDDDDDD)) {
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SkBlurStyle NONE = SkBlurStyle(-999);
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const struct {
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SkBlurStyle fStyle;
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int fCx, fCy;
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} gRecs[] = {
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{ NONE, 0, 0 },
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{ kInner_SkBlurStyle, -1, 0 },
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{ kNormal_SkBlurStyle, 0, 1 },
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{ kSolid_SkBlurStyle, 0, -1 },
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{ kOuter_SkBlurStyle, 1, 0 },
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};
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SkPaint paint;
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paint.setAntiAlias(true);
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sk_tool_utils::set_portable_typeface(&paint);
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paint.setTextSize(SkIntToScalar(25));
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canvas->translate(SkIntToScalar(-40), SkIntToScalar(0));
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SkBlurMaskFilter::BlurFlags flags = SkBlurMaskFilter::kNone_BlurFlag;
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for (int j = 0; j < 2; j++) {
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canvas->save();
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paint.setColor(SK_ColorBLUE);
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for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
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if (gRecs[i].fStyle != NONE) {
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paint.setMaskFilter(SkBlurMaskFilter::Make(gRecs[i].fStyle,
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SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(20)),
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flags));
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} else {
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paint.setMaskFilter(nullptr);
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}
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canvas->drawCircle(SkIntToScalar(200 + gRecs[i].fCx*100),
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SkIntToScalar(200 + gRecs[i].fCy*100),
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SkIntToScalar(50),
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paint);
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}
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// draw text
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{
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paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle,
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SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(4)),
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flags));
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SkScalar x = SkIntToScalar(70);
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SkScalar y = SkIntToScalar(400);
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paint.setColor(SK_ColorBLACK);
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canvas->drawText("Hamburgefons Style", 18, x, y, paint);
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canvas->drawText("Hamburgefons Style", 18,
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x, y + SkIntToScalar(50), paint);
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paint.setMaskFilter(nullptr);
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paint.setColor(SK_ColorWHITE);
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x -= SkIntToScalar(2);
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y -= SkIntToScalar(2);
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canvas->drawText("Hamburgefons Style", 18, x, y, paint);
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}
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canvas->restore();
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flags = SkBlurMaskFilter::kHighQuality_BlurFlag;
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canvas->translate(SkIntToScalar(350), SkIntToScalar(0));
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}
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}
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//////////////////////////////////////////////////////////////////////////////////////////////
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// exercise a special-case of blurs, which is two nested rects. These are drawn specially,
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// and possibly cached.
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//
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// in particular, we want to notice that the 2nd rect draws slightly differently, since it
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// is translated a fractional amount.
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//
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DEF_SIMPLE_GM(blur2rects, canvas, 700, 500) {
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SkPaint paint;
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paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 2.3f));
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SkRect outer = SkRect::MakeXYWH(10.125f, 10.125f, 100.125f, 100);
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SkRect inner = SkRect::MakeXYWH(20.25f, 20.125f, 80, 80);
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SkPath path;
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path.addRect(outer, SkPath::kCW_Direction);
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path.addRect(inner, SkPath::kCCW_Direction);
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canvas->drawPath(path, paint);
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// important to translate by a factional amount to exercise a different "phase"
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// of the same path w.r.t. the pixel grid
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SkScalar dx = SkScalarRoundToScalar(path.getBounds().width()) + 14 + 0.25f;
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canvas->translate(dx, 0);
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canvas->drawPath(path, paint);
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}
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DEF_SIMPLE_GM(blur2rectsnonninepatch, canvas, 700, 500) {
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SkPaint paint;
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paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 4.3f));
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SkRect outer = SkRect::MakeXYWH(10, 110, 100, 100);
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SkRect inner = SkRect::MakeXYWH(50, 150, 10, 10);
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SkPath path;
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path.addRect(outer, SkPath::kCW_Direction);
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path.addRect(inner, SkPath::kCW_Direction);
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canvas->drawPath(path, paint);
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SkScalar dx = SkScalarRoundToScalar(path.getBounds().width()) + 40 + 0.25f;
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canvas->translate(dx, 0);
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canvas->drawPath(path, paint);
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// Translate to outside of clip bounds.
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canvas->translate(-dx, 0);
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canvas->translate(-30, -150);
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canvas->drawPath(path, paint);
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}
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