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 // HASH=b07e62298e7b0ab5683db199faffceb2
5 REG_FIDDLE(Matrix_preConcat, 256, 256, false, 3) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7 SkMatrix matrix, matrix2;
8 SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {10, 206}};
9 SkRect::Make(source.bounds()).toQuad(bitmapBounds);
10 matrix.setPolyToPoly(bitmapBounds, perspect, 4);
11 matrix2.setPolyToPoly(perspect, bitmapBounds, 4);
12 matrix.preConcat(matrix2);
13 canvas->concat(matrix);
14 canvas->drawBitmap(source, 0, 0);
15 }
16 } // END FIDDLE
17