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.
3 #include "tools/fiddle/examples.h"
4 REG_FIDDLE(Matrix_dirtyMatrixTypeCache, 256, 256, true, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 SkMatrix matrix;
7 matrix.setIdentity();
8 SkDebugf("with identity matrix: x = %g\n", matrix.mapXY(24, 42).fX);
9 SkScalar& skewRef = matrix[SkMatrix::kMSkewX];
10 skewRef = 0;
11 SkDebugf("after skew x mod: x = %g\n", matrix.mapXY(24, 42).fX);
12 skewRef = 1;
13 SkDebugf("after 2nd skew x mod: x = %g\n", matrix.mapXY(24, 42).fX);
14 matrix.dirtyMatrixTypeCache();
15 SkDebugf("after dirty cache: x = %g\n", matrix.mapXY(24, 42).fX);
16 }
17 } // END FIDDLE
18