blob: b0ac9bf0910314399a627c40f89d52550ba9e41b [file] [log] [blame]
* Copyright 2019 Google LLC
* 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/SkMaskFilter.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRRect.h"
#include "include/core/SkRect.h"
// Illustrates a bug where the outer portion of the GPU rect blur was too dark with a small sigma.
DEF_SIMPLE_GM(skbug_9319, canvas, 256, 512) {
SkPaint p;
p.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 0.5f));
const auto r = SkRect::MakeXYWH(10, 10, 100, 100);
SkAutoCanvasRestore acr(canvas, true);
// Clip out interior so that the outer portion stands out.
canvas->clipRect(r, SkClipOp::kDifference);
canvas->drawRect(r, p);
canvas->translate(0, 120);
// RRect for comparison.
const auto rr = SkRRect::MakeRectXY(r, .1f, .1f);
SkAutoCanvasRestore acr(canvas, true);
canvas->clipRRect(rr, SkClipOp::kDifference);
canvas->drawRRect(rr, p);