skia2/docs/examples/Pixmap_writable_addr64.cpp
Hal Canary d88c2e8e09 Docs: rename examples files to match names
Change-Id: I9a6b2780cfdd91cdd16d5a08eb9ba1214492cb7e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201982
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
2019-03-19 18:49:22 +00:00

21 lines
800 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 "fiddle/examples.h"
// HASH=de14d8d30e4a7b6462103d0e0dd96b0b
REG_FIDDLE(Pixmap_writable_addr64, 256, 40, false, 0) {
void draw(SkCanvas* canvas) {
SkImageInfo info = SkImageInfo::Make(3, 3, kRGBA_F16_SkColorType, kPremul_SkAlphaType);
uint64_t storage[9];
SkPixmap pixmap(info, storage, 3 * sizeof(uint64_t));
SkColor4f c4 { 1, 0.45f, 0.25f, 0.65f };
pixmap.erase(c4);
SkBitmap bitmap;
canvas->scale(10, 10);
bitmap.installPixels(pixmap);
canvas->drawBitmap(bitmap, 0, 0);
*pixmap.writable_addr64(1, 1) |= 0x00ff000000000000LL;
bitmap.installPixels(pixmap);
canvas->drawBitmap(bitmap, 10, 0);
}
} // END FIDDLE