| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 1 | // Copyright 2019 Google LLC. |
| 2 | // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. |
| Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 3 | #include "tools/fiddle/examples.h" |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 4 | // HASH=f99dcb00296d0c56b6c0e178e94b3534 |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Matrix_mapPoints, 256, 256, false, 0) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | SkMatrix matrix; |
| 8 | matrix.reset(); |
| 9 | const int count = 4; |
| 10 | SkPoint src[count]; |
| 11 | matrix.mapRectToQuad(src, {40, 70, 180, 220} ); |
| 12 | SkPaint paint; |
| 13 | paint.setARGB(77, 23, 99, 154); |
| 14 | for (int i = 0; i < 5; ++i) { |
| 15 | SkPoint dst[count]; |
| 16 | matrix.mapPoints(dst, src, count); |
| 17 | canvas->drawPoints(SkCanvas::kPolygon_PointMode, count, dst, paint); |
| 18 | matrix.preRotate(35, 128, 128); |
| 19 | } |
| 20 | } |
| 21 | } // END FIDDLE |