| // Copyright 2019 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" |
| // HASH=f99dcb00296d0c56b6c0e178e94b3534 |
| REG_FIDDLE(Matrix_mapPoints, 256, 256, false, 0) { |
| void draw(SkCanvas* canvas) { |
| SkMatrix matrix; |
| matrix.reset(); |
| const int count = 4; |
| SkPoint src[count]; |
| matrix.mapRectToQuad(src, {40, 70, 180, 220} ); |
| SkPaint paint; |
| paint.setARGB(77, 23, 99, 154); |
| for (int i = 0; i < 5; ++i) { |
| SkPoint dst[count]; |
| matrix.mapPoints(dst, src, count); |
| canvas->drawPoints(SkCanvas::kPolygon_PointMode, count, dst, paint); |
| matrix.preRotate(35, 128, 128); |
| } |
| } |
| } // END FIDDLE |
