| 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=139b874da0a3ede1f3df88119085c0aa |
| Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 5 | REG_FIDDLE(Matrix_decomposeScale, 256, 256, true, 0) { |
| Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 6 | void draw(SkCanvas* canvas) { |
| 7 | SkMatrix matrix; |
| 8 | matrix.setRotate(90 * SK_Scalar1); |
| 9 | matrix.postScale(1.f / 4, 1.f / 2); |
| 10 | matrix.dump(); |
| 11 | SkSize scale = {SK_ScalarNaN, SK_ScalarNaN}; |
| 12 | SkMatrix remaining; |
| 13 | remaining.reset(); |
| 14 | bool success = matrix.decomposeScale(&scale, &remaining); |
| 15 | SkDebugf("success: %s ", success ? "true" : "false"); |
| 16 | SkDebugf("scale: %g, %g\n", scale.width(), scale.height()); |
| 17 | remaining.dump(); |
| 18 | SkMatrix scaleMatrix = SkMatrix::MakeScale(scale.width(), scale.height()); |
| 19 | SkMatrix combined = SkMatrix::Concat(scaleMatrix, remaining); |
| 20 | combined.dump(); |
| 21 | } |
| 22 | } // END FIDDLE |