skia2/docs/examples/Surface_makeImageSnapshot_2.cpp
Mike Reed b746b1f598 Pass sampling to surface.draw
Bug: skia:7650
Change-Id: I97941a44faa4176f94d57a9c1626ac36b0c0c4ea
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/350557
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Reed <reed@google.com>
2021-01-06 19:05:00 +00:00

18 lines
795 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=b18b8ab693b09eb70a1d22ab63790cc7
REG_FIDDLE(Surface_makeImageSnapshot_2, 256, 64, false, 0) {
void draw(SkCanvas* canvas) {
sk_sp<SkSurface> big(SkSurface::MakeRasterN32Premul(64, 64));
sk_sp<SkSurface> lil(big->makeSurface(SkImageInfo::MakeN32(32, 32, kPremul_SkAlphaType)));
big->getCanvas()->clear(SK_ColorRED);
lil->getCanvas()->clear(SK_ColorBLACK);
sk_sp<SkImage> early(big->makeImageSnapshot());
lil->draw(big->getCanvas(), 16, 16);
sk_sp<SkImage> later(big->makeImageSnapshot({0, 0, 16, 16}));
canvas->drawImage(early, 0, 0);
canvas->drawImage(later, 0, 0);
}
} // END FIDDLE