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