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=b1ead09c67a177ab8eace12b061610a7
5REG_FIDDLE(Matrix_mapXY_2, 256, 256, false, 4) {
6void draw(SkCanvas* canvas) {
7    SkMatrix matrix;
8    SkPoint bitmapBounds[4], perspect[4] = {{50, 10}, {180, 40}, {236, 176}, {30, 206}};
9    SkRect::Make(source.bounds()).toQuad(bitmapBounds);
10    matrix.setPolyToPoly(bitmapBounds, perspect, 4);
11    SkPaint paint;
12    paint.setAntiAlias(true);
13    paint.setStrokeWidth(3);
14    for (int x : { 0, source.width() } ) {
15        for (int y : { 0, source.height() } ) {
16            canvas->drawPoint(matrix.mapXY(x, y), paint);
17        }
18    }
19    canvas->concat(matrix);
20    canvas->drawImage(image, 0, 0);
21}
22}  // END FIDDLE
23