skia2/docs/examples/Bitmap_allocPixels.cpp
Mike Reed 34a0c97f5e don't use drawBitmap
Bug: skia:11216
Change-Id: I89a40e330f27f30c461f2b6012bf26c082b66094
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/359076
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-26 02:24:21 +00:00

18 lines
710 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=555c0f62f96602a9dcd459badcd005e0
REG_FIDDLE(Bitmap_allocPixels, 256, 256, false, 3) {
void draw(SkCanvas* canvas) {
SkBitmap bitmap;
SkImageInfo info = SkImageInfo::Make(256, 64, kGray_8_SkColorType, kOpaque_SkAlphaType);
bitmap.allocPixels(info, info.width() * info.bytesPerPixel() + 64);
SkCanvas offscreen(bitmap);
offscreen.scale(.5f, .5f);
for (int y : { 0, 64, 128, 192 } ) {
offscreen.drawImage(source.asImage(), 0, -y);
canvas->drawImage(bitmap.asImage(), 0, y);
}
}
} // END FIDDLE