blob: 45779e6e4a080d3c21c205b281988604c6a8f32a [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=6ec7f7b2cc163cd29f627eef6d4b061c
REG_FIDDLE(Pixmap_readPixels_3, 256, 256, false, 3) {
void draw(SkCanvas* canvas) {
SkImageInfo info = SkImageInfo::MakeN32Premul(image->width(), image->height());
std::vector<int32_t> srcPixels;
const int rowBytes = image->width() * 4;
srcPixels.resize(image->height() * rowBytes);
SkPixmap pixmap(info, (const void*) &srcPixels.front(), rowBytes);
image->readPixels(nullptr, pixmap, 0, 0);
for (int offset : { 32, 64, 96 } ) {
std::vector<int32_t> dstPixels;
dstPixels.resize(image->height() * rowBytes);
SkPixmap dstmap(info, &dstPixels.front(), rowBytes);
pixmap.readPixels(dstmap, offset, 0);
SkBitmap bitmap;
bitmap.installPixels(dstmap);
canvas->translate(32, 32);
canvas->drawBitmap(bitmap, 0, 0);
}
}
} // END FIDDLE