Commit Graph

25 Commits

Author SHA1 Message Date
a4df4aae73 Expose WebPMalloc() in addition to WebPFree()
and use it at various places, including for WebPData.

This is an API change!

Change-Id: Ic041323a1179c465292a4f981a86c4c34635d243
2019-10-15 23:19:50 +02:00
a439972175 WIP: list includes as descendants of the project dir
#include "(.|..)/..." -> #include "src/..."

Change-Id: I772880aa097a770722043c8a4393552ba38a89b6
2017-10-10 23:04:05 -07:00
39eda6584f Remove a duplicated pixel hash implementation.
Change-Id: If0df61add2fdf404f9baf0820ca83faa50f2791c
2017-03-16 16:15:40 +01:00
fcd4784dcd use a 8b table for C-version for clz()
30% faster on x86, 5% faster on N5.

New generic function: WebPLog2FloorC()
This function is called as fallback for BitsLog2Floor() when there's
no clz() available.

Change-Id: Ica15c6092112e514c0e200fab89c434de48d4b19
2017-01-13 15:36:26 +01:00
76bbcf2ed6 fix a potential overflow with MALLOC_LIMIT
BUG=webp:321

Change-Id: Iab89dfe167fb394fcdffd3b2732d4ac9bef764b0
2016-12-12 13:40:40 -08:00
0a57ad0dc5 cosmetics: WebPSafeAlloc -> WebPSafeMalloc
Change-Id: I0c47b827cadc18cf739f1648c605311c9bc41375
2016-08-30 18:34:37 -07:00
6ab496ed22 fix some 'unsigned integer overflow' warnings in ubsan
I couldn't find a safe way of fixing VP8GetSigned() so i just
used the big-hammer.

Change-Id: I1039bc00307d1c90c85909a458a4bc70670e48b7
2016-08-16 23:18:27 -07:00
8a4ebc6ab0 Revert "fix 'unsigned integer overflow' warnings in ubsan"
This reverts commit e44f5248ff.

contains unintentional changes in quant.c

Change-Id: I1928f072566788b0c9ea80f6fbc9e571061f9b3e
2016-08-16 16:55:56 -07:00
e44f5248ff fix 'unsigned integer overflow' warnings in ubsan
I couldn't find a safe way of fixing VP8GetSigned() so i just
used the big-hammer.

Change-Id: I1039bc00307d1c90c85909a458a4bc70670e48b7
2016-08-16 15:04:41 -07:00
e6ac450cbd utils.[hc]: s/MAX_COLOR_COUNT/MAX_PALETTE_SIZE/
MAX_COLOR_COUNT was just a synonym and its use in the header was a bit
strange given the visibility of that define.

Change-Id: I536964ddc14a0c48263191b6afb80695b5a038e6
2016-06-16 23:14:30 -07:00
3259571e7d Refactor GetColorPalette method.
This was defined (slightly differently) at two places. Created a common
method and moved to utils/utils.[hc].

Change-Id: I66c3ac6dea24e0cd2c0eaa5440f3142b4dbbe23b
2016-06-13 18:52:37 -07:00
cf4a651bb8 Revert "Refactor GetColorPalette method."
This reverts commit 169004b1d5.

this changes the ABI, so should bump versions and add a note to NEWS
when we're ready to expose it

Change-Id: Ic5bbd0aee2b6fd0f9d438a9effedf22fe0cec4bf
2016-05-20 17:05:33 -07:00
169004b1d5 Refactor GetColorPalette method.
This was defined (slightly differently) at two places. Created a common
method and moved to utils/utils.[hc].

Change-Id: I19adc9c48f2a4e2ec9d995e78add6f25172774c2
2016-05-20 15:06:38 -07:00
397863bd66 Refactor CopyPlane() and CopyPixels() methods: put them in utils.
Change-Id: I0e1533df557a0fa42c670e3b826fc0675c36e0a5
2015-11-13 11:39:22 -08:00
3ebcdd4133 remove duplicate "#include <stdlib.h>"
Change-Id: I01b23efb1229e7dd96c6e15c4385064ad10a575a
2015-08-14 12:33:45 -07:00
822f113ebb add WebPFree() to the API
this should be used in preference to free() for releasing memory
returned from WebPDecode*() / WebPEncode*(). this simplifies memory
management when working through language bindings

Change-Id: I15eb538a45390efc552fda8e5c251a3fbdc13c29
2015-07-06 23:27:51 -07:00
e300c9d819 cosmetics
fix some indent/whitespace, remove a few duplicate includes, extra
semi-colons

Change-Id: If937182b40a21e0f2028496e7b4b06c6e8a41352
2014-08-06 12:10:59 -07:00
f948d08c81 memory debug: allow setting pre-defined malloc failure points
MALLOC_FAIL_AT flag can be used to set-up a pre-determined failure
point during malloc calls. The counter value is retrieved using
getenv().
Example usage: export MALLOC_FAIL_AT=37 && cwebp input.png
will make 'cwebp' report a memory allocation error the 37th time
malloc() or calloc() is called.

MALLOC_MEM_LIMIT can be used similarly to prevent allocating more
than a given amount of memory. This is usually less convenient to
use than MALLOC_FAIL_AT since one has to know in advance the typical
memory size allocated.

Both these flags are meant to be used for debugging only!

Also: added a 'total_mem_allocated' to record the overall memory allocated

Change-Id: I9d408095ee7d76acba0f3a31b1276fc36478720a
2014-05-05 14:01:33 -07:00
2aa187360d instrument memory allocation routines for debugging
Some tracing code is activated by PRINT_MEM_INFO flag.
For debugging only! (not thread-safe, and slow).

Change-Id: I282c623c960f97d474a35b600981b761ef89ace9
2014-05-02 00:19:55 -07:00
af93bdd6bc use WebPSafe[CM]alloc/WebPSafeFree instead of [cm]alloc/free
there's still some malloc/free in the external example
This is an encoder API change because of the introduction
of WebPMemoryWriterClear() for symmetry reasons.

The MemoryWriter object should probably go in examples/ instead
of being in the main lib, though.
mux_types.h stil contain some inlined free()/malloc() that are
harder to remove (we need to put them in the libwebputils lib
and make sure link is ok). Left as a TODO for now.

Also: WebPDecodeRGB*() function are still returning a pointer
that needs to be free()'d. We should call WebPSafeFree() on
these, but it means exposing the whole mechanism. TODO(later).

Change-Id: Iad2c9060f7fa6040e3ba489c8b07f4caadfab77b
2014-03-27 15:50:59 -07:00
5227d99146 drop: ifdef __cplusplus checks from C files
the prototypes are already marked in the headers

Change-Id: I172fe742200c939ca32a70a2299809b8baf9b094
2013-12-13 11:42:13 -08:00
d640614d54 update copyright text
rather than symlink the webm/vpx terms, use the same header as libvpx to
reference in-tree files

based on the discussion in:
https://codereview.chromium.org/12771026/

Change-Id: Ia3067ecddefaa7ee01550136e00f7b3f086d4af4
2013-06-06 23:09:14 -07:00
757ebcb1c1 catch malloc(0)/calloc(0) with an assert
Actually, it turns out we now should never call these functions
with a zero size, otherwise something is wrong in the logic.

Change-Id: Ie414fcbec95486c169190470a71f2cff0843782a
2013-01-23 20:09:28 +01:00
42f8f9346c handle malloc(0) and calloc(0) uniformly on all platforms
also change lossless encoder logic, which was relying on explicit
NULL return from WebPSafeMalloc(0)

renamed function to CheckSizeArgumentsOverflow() explicitly

addresses issue #138

Change-Id: Ibbd51cc0281e60e86dfd4c5496274399e4c0f7f3
2013-01-22 23:40:16 +01:00
80cc7303ab WebPCheckMalloc() and WebPCheckCalloc():
safe size-checking versions of malloc() and calloc()

Change-Id: Iffa3138c48b9b254b3d7eaad913e1f852d9dafba
2012-07-31 16:56:39 -07:00