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bit_reader.h: cosmetics

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- use const where applicable
- drop unnecessary string.h include

Change-Id: I560eef84fe17d3925768f6817c02ea79604c4379
This commit is contained in:
James Zern 2013-08-06 14:25:26 -07:00
parent 988b70844e
commit 3ceca8ad31
1 changed files with 3 additions and 4 deletions
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7
src/utils/bit_reader.h
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@ -19,7 +19,6 @@
#ifdef _MSC_VER
#include <stdlib.h> // _byteswap_ulong
#endif
#include <string.h> // For memcpy
#include "../webp/types.h"
#if defined(__cplusplus) || defined(c_plusplus)
@ -155,7 +154,7 @@ static WEBP_INLINE void VP8LoadNewBytes(VP8BitReader* const br) {
if (br->buf_ + sizeof(lbit_t) <= br->buf_end_) {
// convert memory type to register type (with some zero'ing!)
bit_t bits;
lbit_t in_bits = *(lbit_t*)br->buf_;
const lbit_t in_bits = *(const lbit_t*)br->buf_;
br->buf_ += (BITS) >> 3;
#if !defined(__BIG_ENDIAN__)
#if (BITS > 32)
@ -254,6 +253,7 @@ static WEBP_INLINE void VP8Shift(VP8BitReader* const br) {
br->bits_ -= shift;
#endif
}
static WEBP_INLINE int VP8GetBit(VP8BitReader* const br, int prob) {
#ifndef USE_RIGHT_JUSTIFY
// It's important to avoid generating a 64bit x 64bit multiply here.
@ -282,7 +282,6 @@ static WEBP_INLINE int VP8GetSigned(VP8BitReader* const br, int v) {
return bit ? -v : v;
}
// -----------------------------------------------------------------------------
// Bitreader for lossless format
@ -322,7 +321,7 @@ static WEBP_INLINE void VP8LSetBitPos(VP8LBitReader* const br, int val) {
br->bit_pos_ = val;
}
// Advances the Read buffer by 4 bytes to make room for reading next 32 bits.
// Advances the read buffer by 4 bytes to make room for reading next 32 bits.
void VP8LFillBitWindow(VP8LBitReader* const br);
#if defined(__cplusplus) || defined(c_plusplus)