1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Matrix_mapPoints, 256, 256, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker SkMatrix matrix;
7*c8dee2aaSAndroid Build Coastguard Worker matrix.reset();
8*c8dee2aaSAndroid Build Coastguard Worker const int count = 4;
9*c8dee2aaSAndroid Build Coastguard Worker SkPoint src[count];
10*c8dee2aaSAndroid Build Coastguard Worker matrix.mapRectToQuad(src, {40, 70, 180, 220} );
11*c8dee2aaSAndroid Build Coastguard Worker SkPaint paint;
12*c8dee2aaSAndroid Build Coastguard Worker paint.setARGB(77, 23, 99, 154);
13*c8dee2aaSAndroid Build Coastguard Worker for (int i = 0; i < 5; ++i) {
14*c8dee2aaSAndroid Build Coastguard Worker SkPoint dst[count];
15*c8dee2aaSAndroid Build Coastguard Worker matrix.mapPoints(dst, src, count);
16*c8dee2aaSAndroid Build Coastguard Worker canvas->drawPoints(SkCanvas::kPolygon_PointMode, count, dst, paint);
17*c8dee2aaSAndroid Build Coastguard Worker matrix.preRotate(35, 128, 128);
18*c8dee2aaSAndroid Build Coastguard Worker }
19*c8dee2aaSAndroid Build Coastguard Worker }
20*c8dee2aaSAndroid Build Coastguard Worker } // END FIDDLE
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