blob: e41af6995272e5943498a8526e870f7209e78d2f [file] [log] [blame]
// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=9b3133a6673d2514d166398adbe1f9f4
REG_FIDDLE(Bitmap_writePixels, 256, 256, false, 3) {
void draw(SkCanvas* canvas) {
std::vector<int32_t> srcPixels;
int width = image->width();
int height = image->height();
srcPixels.resize(height * width * 4);
SkPixmap pixmap(SkImageInfo::MakeN32Premul(width, height), (const void*) &srcPixels.front(),
width * 4);
image->readPixels(nullptr, pixmap, 0, 0);
canvas->scale(.5f, .5f);
width /= 4;
height /= 4;
for (int y = 0; y < 4; ++y) {
for (int x = 0; x < 4; ++x) {
SkBitmap bitmap;
bitmap.allocPixels(SkImageInfo::MakeN32Premul(width, height));
bitmap.writePixels(pixmap, -y * width, -x * height);
canvas->drawImage(bitmap.asImage(), x * width, y * height);
}
}
}
} // END FIDDLE