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=311a59931ac340b90f202cd6ac399a0a
5 REG_FIDDLE(HSVToColor, 256, 256, false, 3) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7 canvas->drawImage(source.asImage(), 0, 0);
8 for (int y = 0; y < 256; ++y) {
9 for (int x = 0; x < 256; ++x) {
10 SkColor color = source.getColor(x, y);
11 SkScalar hsv[3];
12 SkColorToHSV(color, hsv);
13 hsv[0] = hsv[0] + 90 >= 360 ? hsv[0] - 270 : hsv[0] + 90;
14 SkPaint paint;
15 paint.setColor(SkHSVToColor((x + y) % 256, hsv));
16 canvas->drawRect(SkRect::MakeXYWH(x, y, 1, 1), paint);
17 }
18 }
19 }
20 } // END FIDDLE
21