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18 Commits

Author SHA1 Message Date
skal
2afee60a7c speed up for ARM using 8bit for boolean decoder 
SBITS=8 is reported 20-30% faster on ARM (where 64bit ops
are expensive).

Also use 32bits for i32.

Change-Id: Id6a7197d805061aeb8832f20432512d0d930ebfa
 2012-09-10 23:27:58 +02:00
Pascal Massimino
2cf1f81590 Merge "fix the BITS=8 case" 2012-09-03 02:36:03 -07:00
Pascal Massimino
12f78aec48 fix the BITS=8 case 
spotted by Måns Rullgård (mans at mansr dot com)
Change-Id: I4720dc2eeb645af894e396739be6fa11b5fe2739
 2012-09-03 02:29:14 -07:00
Pascal Massimino
6920c71f0a fix MSVC warnings regarding implicit uint64 to uint32 conversions 
Change-Id: I284dae9222a3817bba3c5ba6be271b31b5bf660d
 2012-09-01 07:21:45 -07:00
James Zern
1bd0bd0d4d bit_reader.h: correct include 
use webp/types.h rather than webp/decode_vp8.h

Change-Id: I9c6da04b92ff00d6dac47ce3eb0bcb2d6a96712d
 2012-04-23 17:04:22 -07:00
James Zern
dceb8b4d9a Merge changes If1331d3c,I86fe3847 
* changes:
  types.h: centralize use of stddef.h
  vp8io: use size_t for buffer size
 2012-04-14 13:01:14 -07:00
Pascal Massimino
fac0f12e1b rename BitReader to VP8LBitReader 
Change-Id: I192b76422e131a94fb58c2c4a5520a5dba807126
 2012-04-13 01:56:31 -07:00
James Zern
fbd82b5a39 types.h: centralize use of stddef.h 
for size_t / NULL

Change-Id: If1331d3cf44296ed0ba9e838eae2f5b1bcaeb61b
 2012-04-12 17:14:58 -07:00
James Zern
8d254a0927 cosmetics 
long line, remove out of date TODO

Change-Id: Ic8a40c9d731178af85645b3e24c1cbd807d7d58b
 2012-04-11 15:44:48 -07:00
Pascal Massimino
6f01b830e2 split the VP8 and VP8L decoding properly 
* each with their own decoder instances.
* Refactor the incremental buffer-update code a lot.
* remove br_offset_ for VP8LDecoder along the way
* make VP8GetHeaders() be used only for VP8, not VP8L bitstream
* remove VP8LInitDecoder()
* rename VP8LBitReaderResize() to VP8LBitReaderSetBuffer()
(cherry picked from commit 5529a2e6d47212a721ca4ab003215f97bd88ebb4)

Change-Id: I58f0b8abe1ef31c8b0e1a6175d2d86b863793ead
 2012-04-10 23:06:58 -07:00
James Zern
c4ae53c8b3 add utils/bit_reader.[hc] changes from experimental 
Pulled from the parent of the current version (5529a2e^).
The history of this and related files is a bit entangled so rather
trying to split the changes and introduce some noise in master's history
we'll start with a fresh snapshot.
The file progression is still available in the experimental branch.

Change-Id: I6dae97fc381cd6c1d1640c4c565b2084a41ec955
 2012-04-10 17:48:49 -07:00
Pascal Massimino
6f7bf645b4 issue 111: fix little-endian problem in bit-reader 
patch by naideflan

Change-Id: I874dbd5588d5cd2559c54ca9ad5582fa3a589b1b
 2012-03-27 05:55:20 -07:00
James Zern
b3e4054f14 silence msvc debug build warning 
_byteswap_ulong is defined in stdlib.h, release builds seem to pull it
in through a different path.

Change-Id: I510d2624150f89a4a77734bf3dc5b4db60a4ba95
 2012-02-21 13:57:48 -08:00
Pascal Massimino
01b6380656 4-5% faster decoding, optimized byte loads in arithmetic decoder. 
Bits are loaded 32bits at a time (and often aligned).
Rather 64bit-friendly

Change-Id: If7f67dbe5e37696efbeb6d579d9d8482350b79ee
 2012-01-31 02:07:15 -08:00
James Zern
ad1e163a0d cosmetics: normalize copyright headers 
Change-Id: I5e2462b101e0447a4f15a1455c07131bc97a52dd
 2012-01-06 14:49:06 -08:00
James Zern
964387ed19 use WEBP_INLINE for inline function declarations 
removes a #define inline, objectionable in certain projects

Change-Id: Iebe0ce0b25a030756304d402679ef769e5f854d1
 2011-11-11 10:53:58 -08:00
Pascal Massimino
6a32a0f5bf make VP8BitReader a typedef, for better re-use 
Change-Id: Id91f8c5649f9fd078facc9f280a314377193b5e8
 2011-09-13 15:47:24 -07:00
Pascal Massimino
b112e83647 create a libwebputils under src/utils 
with bit_reader bit_writer and thread for now.

Change-Id: If961933fcfc43e60220913fe4d527230ba8f46bb
 2011-09-13 15:34:15 -07:00