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11 Commits

Author SHA1 Message Date
James Zern
d2caaba435 fix indent 
after:
277d3074 Fix size_t overflow in  WebPRescalerInit

Change-Id: I9adf7f01f28ddd54305512762e2ed28713282966
 2021-07-28 11:23:45 -07:00
Skal
277d30749f Fix size_t overflow in WebPRescalerInit 
we need to surface potential error up, so lot of signature changes.

Change-Id: I7c11a46c4542564d06417203cd1158754e30a9e4
 2021-06-25 14:54:42 -07:00
James Zern
4edea4a695 Init{RGB,YUV}Rescaler: fix a few more int overflows 
promote out_width to size_t before multiplying

src/dec/io_dec.c:301:30: runtime error: signed integer overflow: 2 *
1224167500 cannot be represented in type 'int'
  #0 0x55fd9e8de2bd in InitYUVRescaler src/dec/io_dec.c:301:30
  #1 0x55fd9e8de2bd in CustomSetup src/dec/io_dec.c:571:54

Bug: chromium:1196850
Change-Id: I70d0aac1b5eef163a3f353b721fb9ab561e02040
 2021-06-14 12:22:28 -07:00
James Zern
28d488e6f1 utils.h: add SizeOverflow() 
this normalizes the 'size != (size_t)size' checks in the libraries.

Change-Id: I1e8ccd0d3697266f23911ecf0f7a546f011befde
 2021-06-14 12:22:28 -07:00
jzern@google.com
685d073ee1 Init{RGB,YUV}Rescaler: fix int overflows in multiplication 
with large sizes the intermediate calculations may exceed 32-bits

src/dec/io_dec.c:491:17: runtime error: signed integer overflow: 3 *
788529152 cannot be represented in type 'int'
  #0 0x557a3ad972b2 in InitRGBRescaler src/dec/io_dec.c:491:17
  #1 0x557a3ad972b2 in CustomSetup src/dec/io_dec.c:563:29

Bug: chromium:1196850
Change-Id: Iaf2e8a6de9481dfea31dcd7fccb2d4eca767bddf
 2021-06-10 15:26:44 -07:00
Pascal Massimino
8870ba7f06 Fix skia bug #10952 
The offset *can* be negative, but the sanitizer reports strange
address behaviour when row_offset is unsigned size_t.

For safety, use int64_t instead (probably overkill. int32_t is probably ok).

Change-Id: I1bd424bfdb5447b3839f40679581d6bdea075320
 2020-11-18 14:59:34 +01:00
Vincent Rabaud
e3c259a278 Fix integer overflow in EmitFancyRGB. 
+ enhance the assert in WebPCopyPlane()

Change-Id: Id9b01d00a8dce6caf0d4721a6fbe8def40b8bb85
 2020-05-05 14:57:19 +02:00
Pascal Massimino
0df22b9eed WEBP_REDUCE_SIZE: disable all rescaler code 
BUG=webp:355

Change-Id: Id87cb11902e3fb8544a214308526ea9665ce8440
 2017-11-24 22:08:32 +00:00
James Zern
a439972175 WIP: list includes as descendants of the project dir 
#include "(.|..)/..." -> #include "src/..."

Change-Id: I772880aa097a770722043c8a4393552ba38a89b6
 2017-10-10 23:04:05 -07:00
skal
663a6d9d2e unify the ALTERNATE_CODE flag usage 
Pattern is now:
 #if !defined(FLAG)
 #define FLAG 0   // ALTERNATE_CODE
 #endif
...
 #if (FLAG == 1)
 ...
 #else
  ...
 #endif    // FLAG
...

Removed some unused code / flags:
  WEBP_YUV_USE_TABLE, WEBP_REFERENCE_IMPLEMENTATION,
  experimental code,  VP8YUVInit(), ...

BUG=webp:355

Change-Id: I98deb9189446a4cfd665c13ea8aa1ce6a308c63f
 2017-08-01 20:49:29 -07:00
James Zern
668e1dd44f src/{dec,enc,utils}: give filenames a unique suffix 
this avoids duplicates between these trees and dsp/, e.g., enc/tree.c,
dec/tree.c, making pulling the whole library source tree into one target
possible

BUG=webp:279

Change-Id: I060a614833c7c24ddd37bf641702ae6a5eef1775
 2017-01-19 19:09:48 -08:00