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| /*
| * Copyright 2017 Google Inc.
| *
| * Use of this source code is governed by a BSD-style license that can be
| * found in the LICENSE file.
| */
|
| #include "gm.h"
| #include "SkBlurImageFilter.h"
|
| // For all sigma, the black box should be centered in the red outline. For small sigma,
| // the rectangle is not blurred, but still must be centered properly.
|
| DEF_SIMPLE_GM(check_small_sigma_offset, canvas, 200, 1200) {
|
| for (auto sigma : {0.0, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0, 1.2}) {
| // border calculation from SkBlurImageFilter
| int border = SkScalarCeilToInt(sigma * 3);
|
| SkRect r = SkRect::MakeXYWH(50, 50, 100, 50);
| SkRect b = r.makeOutset(border + 1, border + 1);
| b.inset(0.5f, 0.5f);
| SkPaint p;
| p.setColor(SK_ColorRED);
| p.setStyle(SkPaint::Style::kStroke_Style);
|
| canvas->drawRect(b, p);
|
| p.reset();
| p.setColor(SK_ColorBLACK);
| p.setImageFilter(SkBlurImageFilter::Make(sigma, sigma, nullptr));
| canvas->drawRect(r, p);
|
| canvas->translate(0, 100);
| }
| }
|
|
