25 lines
906 B
C++
25 lines
906 B
C++
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// Copyright 2020 Google LLC.
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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#include "tools/fiddle/examples.h"
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REG_FIDDLE(no_gpu_blur, 256, 256, false, 0) {
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void draw(SkCanvas* canvas) {
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SkBitmap alpha, bitmap;
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bitmap.allocN32Pixels(100, 100);
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SkCanvas offscreen(bitmap);
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offscreen.clear(0);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorBLUE);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(20);
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offscreen.drawCircle(50, 50, 39, paint);
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offscreen.flush();
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paint.setMaskFilter(SkMaskFilter::MakeBlur(kOuter_SkBlurStyle, 3));
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SkIPoint offset;
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bitmap.extractAlpha(&alpha, &paint, nullptr, &offset);
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paint.setColor(SK_ColorRED);
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canvas->drawBitmap(bitmap, 0, -offset.fY, &paint);
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canvas->drawBitmap(alpha, 100 + offset.fX, 0, &paint);
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}
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} // END FIDDLE
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