gfx/skia/trunk/src/utils/SkBitmapHasher.h@129ffea94266
gfx/skia/trunk/src/utils/SkBitmapHasher.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
2 /*
3 * Copyright 2012 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
9 #ifndef SkBitmapHasher_DEFINED
10 #define SkBitmapHasher_DEFINED
12 #include "SkBitmap.h"
14 /**
15 * Static class that generates a uint64 hash digest from an SkBitmap.
16 */
17 class SkBitmapHasher {
18 public:
19 /**
20 * Fills in "result" with a hash of the pixels in this bitmap.
21 *
22 * If this is unable to compute the hash for some reason,
23 * it returns false.
24 *
25 * Note: depending on the bitmap config, we may need to create an
26 * intermediate SkBitmap and copy the pixels over to it... so in some
27 * cases, performance and memory usage can suffer.
28 */
29 static bool ComputeDigest(const SkBitmap& bitmap, uint64_t *result);
31 private:
32 static bool ComputeDigestInternal(const SkBitmap& bitmap, uint64_t *result);
33 };
35 #endif
