skia2/docs/examples/Bitmap_getAddr16.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

19 lines
860 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=53e00899ef2e00e2096daf7a07d9b059
REG_FIDDLE(Bitmap_getAddr16, 256, 256, true, 3) {
void draw(SkCanvas* canvas) {
SkBitmap bitmap16;
SkImageInfo dstInfo = SkImageInfo::Make(source.width(), source.height(), kARGB_4444_SkColorType,
kPremul_SkAlphaType);
bitmap16.allocPixels(dstInfo);
if (source.readPixels(dstInfo, bitmap16.getPixels(), bitmap16.rowBytes(), 0, 0)) {
uint16_t* row0 = bitmap16.getAddr16(0, 0);
uint16_t* row1 = bitmap16.getAddr16(0, 1);
size_t interval = (row1 - row0) * bitmap16.bytesPerPixel();
SkDebugf("addr interval %c= rowBytes\n", interval == bitmap16.rowBytes() ? '=' : '!');
}
}
} // END FIDDLE