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(Canvas_writePixels, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 SkImageInfo imageInfo = SkImageInfo::MakeN32(256, 1, kPremul_SkAlphaType);
7 for (int y = 0; y < 256; ++y) {
8 uint32_t pixels[256];
9 for (int x = 0; x < 256; ++x) {
10 pixels[x] = SkColorSetARGB(x, (x + y) % 256, x, (x - y) & 0xFF);
11 }
12 canvas->writePixels(imageInfo, &pixels, sizeof(pixels), 0, y);
13 }
14 }
15 } // END FIDDLE
16