| // 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" |
| REG_FIDDLE(Matrix_dirtyMatrixTypeCache, 256, 256, true, 0) { |
| void draw(SkCanvas* canvas) { |
| const SkPoint p = {24, 42}; |
| SkMatrix matrix; |
| matrix.setIdentity(); |
| SkDebugf("with identity matrix: x = %g\n", matrix.mapPoint(p).fX); |
| SkScalar& skewRef = matrix[SkMatrix::kMSkewX]; |
| skewRef = 0; |
| SkDebugf("after skew x mod: x = %g\n", matrix.mapPoint(p).fX); |
| skewRef = 1; |
| SkDebugf("after 2nd skew x mod: x = %g\n", matrix.mapPoint(p).fX); |
| matrix.dirtyMatrixTypeCache(); |
| SkDebugf("after dirty cache: x = %g\n", matrix.mapPoint(p).fX); |
| } |
| } // END FIDDLE |
