gfx/skia/trunk/include/core/SkPackBits.h@129ffea94266
gfx/skia/trunk/include/core/SkPackBits.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 2008 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
10 #ifndef SkPackBits_DEFINED
11 #define SkPackBits_DEFINED
13 #include "SkTypes.h"
15 class SkPackBits {
16 public:
17 /** Given the number of 16bit values that will be passed to Pack16,
18 returns the worst-case size needed for the dst[] buffer.
19 */
20 static size_t ComputeMaxSize16(int count);
22 /** Given the number of 8bit values that will be passed to Pack8,
23 returns the worst-case size needed for the dst[] buffer.
24 */
25 static size_t ComputeMaxSize8(int count);
27 /** Write the src array into a packed format. The packing process may end
28 up writing more bytes than it read, so dst[] must be large enough.
29 @param src Input array of 16bit values
30 @param count Number of entries in src[]
31 @param dst Buffer (allocated by caller) to write the packed data
32 into
33 @return the number of bytes written to dst[]
34 */
35 static size_t Pack16(const uint16_t src[], int count, uint8_t dst[]);
37 /** Write the src array into a packed format. The packing process may end
38 up writing more bytes than it read, so dst[] must be large enough.
39 @param src Input array of 8bit values
40 @param count Number of entries in src[]
41 @param dst Buffer (allocated by caller) to write the packed data
42 into
43 @return the number of bytes written to dst[]
44 */
45 static size_t Pack8(const uint8_t src[], int count, uint8_t dst[]);
47 /** Unpack the data in src[], and expand it into dst[]. The src[] data was
48 written by a previous call to Pack16.
49 @param src Input data to unpack, previously created by Pack16.
50 @param srcSize Number of bytes of src to unpack
51 @param dst Buffer (allocated by caller) to expand the src[] into.
52 @return the number of dst elements (not bytes) written into dst.
53 */
54 static int Unpack16(const uint8_t src[], size_t srcSize, uint16_t dst[]);
56 /** Unpack the data in src[], and expand it into dst[]. The src[] data was
57 written by a previous call to Pack8.
58 @param src Input data to unpack, previously created by Pack8.
59 @param srcSize Number of bytes of src to unpack
60 @param dst Buffer (allocated by caller) to expand the src[] into.
61 @return the number of bytes written into dst.
62 */
63 static int Unpack8(const uint8_t src[], size_t srcSize, uint8_t dst[]);
65 /** Unpack the data from src[], skip the first dstSkip bytes, then write
66 dstWrite bytes into dst[]. The src[] data was written by a previous
67 call to Pack8. Return the number of bytes actually writtten into dst[]
68 @param src Input data to unpack, previously created by Pack8.
69 @param dst Buffer (allocated by caller) to expand the src[] into.
70 @param dstSkip Number of bytes of unpacked src to skip before writing
71 into dst
72 @param dstWrite Number of bytes of unpacked src to write into dst (after
73 skipping dstSkip bytes)
74 */
75 static void Unpack8(uint8_t dst[], size_t dstSkip, size_t dstWrite,
76 const uint8_t src[]);
77 };
79 #endif
