mirrors/flac
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

minor improvement with byte_bit_to_mask_

Browse Source
This commit is contained in:
Josh Coalson 2001-05-03 20:52:12 +00:00
parent 3ca2712146
commit ca0db24d89
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/libFLAC/bitbuffer.c
View File

@ -35,7 +35,7 @@
/* This should be at least twice as large as the largest number of bytes required to represent any 'number' (in any encoding) you are going to read. */
static const unsigned FLAC__BITBUFFER_DEFAULT_CAPACITY = 65536; /* bytes */
static const byte byte_bit_to_mask_[] = { 128, 64, 32, 16, 8, 4, 2, 1 };
#define BYTE_BIT_TO_MASK(b) (((byte)'\x80') >> (b))
#ifdef min
#undef min
@ -949,7 +949,7 @@ bool FLAC__bitbuffer_peek_bit(FLAC__BitBuffer *bb, unsigned *val, bool (*read_ca
while(1) {
if(bb->total_consumed_bits < bb->total_bits) {
*val = (bb->buffer[bb->consumed_bytes] & byte_bit_to_mask_[bb->consumed_bits])? 1 : 0;
*val = (bb->buffer[bb->consumed_bytes] & BYTE_BIT_TO_MASK(bb->consumed_bits))? 1 : 0;
return true;
}
else {
@ -969,7 +969,7 @@ bool FLAC__bitbuffer_read_bit(FLAC__BitBuffer *bb, unsigned *val, bool (*read_ca
while(1) {
if(bb->total_consumed_bits < bb->total_bits) {
*val = (bb->buffer[bb->consumed_bytes] & byte_bit_to_mask_[bb->consumed_bits])? 1 : 0;
*val = (bb->buffer[bb->consumed_bytes] & BYTE_BIT_TO_MASK(bb->consumed_bits))? 1 : 0;
bb->consumed_bits++;
if(bb->consumed_bits == 8) {
FLAC__CRC16_UPDATE(bb->buffer[bb->consumed_bytes], bb->read_crc16);
@ -997,7 +997,7 @@ bool FLAC__bitbuffer_read_bit_to_uint32(FLAC__BitBuffer *bb, uint32 *val, bool (
while(1) {
if(bb->total_consumed_bits < bb->total_bits) {
*val <<= 1;
*val |= (bb->buffer[bb->consumed_bytes] & byte_bit_to_mask_[bb->consumed_bits])? 1 : 0;
*val |= (bb->buffer[bb->consumed_bytes] & BYTE_BIT_TO_MASK(bb->consumed_bits))? 1 : 0;
bb->consumed_bits++;
if(bb->consumed_bits == 8) {
FLAC__CRC16_UPDATE(bb->buffer[bb->consumed_bytes], bb->read_crc16);
@ -1025,7 +1025,7 @@ bool FLAC__bitbuffer_read_bit_to_uint64(FLAC__BitBuffer *bb, uint64 *val, bool (
while(1) {
if(bb->total_consumed_bits < bb->total_bits) {
*val <<= 1;
*val |= (bb->buffer[bb->consumed_bytes] & byte_bit_to_mask_[bb->consumed_bits])? 1 : 0;
*val |= (bb->buffer[bb->consumed_bytes] & BYTE_BIT_TO_MASK(bb->consumed_bits))? 1 : 0;
bb->consumed_bits++;
if(bb->consumed_bits == 8) {
FLAC__CRC16_UPDATE(bb->buffer[bb->consumed_bytes], bb->read_crc16);