| 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=8c34ae3a2b7e2742bb969819737365ec |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Matrix_postSkew, 256, 256, false, 3) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | SkMatrix matrix; |
| 8 | SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}}; |
| Mike Reed | ecdd979 | 2021-01-27 20:39:22 -0500 | [diff] [blame] | 9 | SkRect::Make(image->bounds()).toQuad(bitmapBounds); |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 10 | matrix.setPolyToPoly(bitmapBounds, perspect, 4); |
| Mike Reed | ecdd979 | 2021-01-27 20:39:22 -0500 | [diff] [blame] | 11 | matrix.postSkew(.5f, 0, image->width() / 2, image->height() / 2); |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 12 | canvas->concat(matrix); |
| Mike Reed | ecdd979 | 2021-01-27 20:39:22 -0500 | [diff] [blame] | 13 | canvas->drawImage(image, 0, 0); |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 14 | } |
| 15 | } // END FIDDLE |