skia2/docs/examples/Pixmap_extractSubset.cpp
Mike Reed ecdd979bc0 drawBitmap is deprecated
Bug: skia:11216
Change-Id: I4affb8e00ff7e7b3e8d873ddfd653f397ca8d928
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/360979
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-28 02:44:21 +00:00

20 lines
822 B
C++

// 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=febdbfac6cf4cde69837643be2e1f6dd
REG_FIDDLE(Pixmap_extractSubset, 256, 128, false, 3) {
void draw(SkCanvas* canvas) {
std::vector<int32_t> pixels;
pixels.resize(image->height() * image->width() * 4);
SkPixmap pixmap(SkImageInfo::Make(image->width(), image->height(), kN32_SkColorType,
image->alphaType()), (const void*) &pixels.front(), image->width() * 4);
image->readPixels(nullptr, pixmap, 0, 0);
SkPixmap inset;
if (pixmap.extractSubset(&inset, {128, 128, 512, 512})) {
SkBitmap bitmap;
bitmap.installPixels(inset);
canvas->drawImage(bitmap.asImage(), 0, 0);
}
}
} // END FIDDLE