Hal Canary | 6c8422c | 2020-01-10 15:22:09 -0500 | [diff] [blame] | 1 | // Copyright 2020 Google LLC. |
| 2 | // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| 3 | #include "tools/fiddle/examples.h" |
| 4 | REG_FIDDLE(blur_alpha_img, 256, 256, false, 0) { |
| 5 | sk_sp<SkImage> foo() { |
| 6 | int w = 240, h = 240; |
| 7 | SkScalar scale = 10.0f; |
| 8 | SkPath path; |
| 9 | static const int8_t pts[] = {2, 2, 1, 3, 0, 3, 2, 1, 3, 1, 4, 0, 4, 1, |
| 10 | 5, 1, 4, 2, 4, 3, 2, 5, 2, 4, 3, 3, 2, 3}; |
| 11 | path.moveTo(2 * scale, 3 * scale); |
| 12 | for (size_t i = 0; i < sizeof(pts) / sizeof(pts[0]); i += 2) { |
| 13 | path.lineTo(pts[i] * scale, pts[i + 1] * scale); |
| 14 | } |
| 15 | path.close(); |
Mike Reed | 1f60733 | 2020-05-21 12:11:27 -0400 | [diff] [blame] | 16 | SkMatrix matrix = SkMatrix::Scale(4 * scale, 4 * scale); |
Hal Canary | 6c8422c | 2020-01-10 15:22:09 -0500 | [diff] [blame] | 17 | SkPaint paint; |
| 18 | paint.setPathEffect(SkPath2DPathEffect::Make(matrix, path)); |
| 19 | paint.setAntiAlias(true); |
| 20 | SkRect bounds{-4 * scale, -4 * scale, (float)w, (float)h}; |
| 21 | SkBitmap bm; |
| 22 | bm.allocPixels(SkImageInfo::MakeA8(w, h)); |
| 23 | SkCanvas c(bm); |
| 24 | c.clear(0); |
| 25 | c.drawRect(bounds, paint); |
| 26 | return SkImage::MakeFromBitmap(bm); |
| 27 | } |
| 28 | |
| 29 | void draw(SkCanvas* canvas) { |
| 30 | auto a8img = foo(); |
| 31 | SkPaint paint; |
| 32 | paint.setMaskFilter(SkMaskFilter::MakeBlur(kNormal_SkBlurStyle, 2.0f, 0)); |
| 33 | paint.setColor(0xFF008000); |
| 34 | canvas->drawImage(a8img, 8, 8, &paint); |
| 35 | } |
| 36 | } // END FIDDLE |