diff options
Diffstat (limited to 'src/gallium/auxiliary/vl/vl_bitstream_parser.c')
-rw-r--r-- | src/gallium/auxiliary/vl/vl_bitstream_parser.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/src/gallium/auxiliary/vl/vl_bitstream_parser.c b/src/gallium/auxiliary/vl/vl_bitstream_parser.c index 356faa13481..7883b95bbe9 100644 --- a/src/gallium/auxiliary/vl/vl_bitstream_parser.c +++ b/src/gallium/auxiliary/vl/vl_bitstream_parser.c @@ -23,12 +23,12 @@ show_bits(unsigned cursor, unsigned how_many_bits, const unsigned *bitstream) assert(bitstream); - if (cur_bit + how_many_bits > sizeof(unsigned) * CHAR_BIT) - { - return grab_bits(cur_bit, sizeof(unsigned) * CHAR_BIT - cur_bit, - bitstream[cur_int]) | - grab_bits(0, cur_bit + how_many_bits - sizeof(unsigned) * CHAR_BIT, - bitstream[cur_int + 1]) << (sizeof(unsigned) * CHAR_BIT - cur_bit); + if (cur_bit + how_many_bits > sizeof(unsigned) * CHAR_BIT) { + unsigned lower = grab_bits(cur_bit, sizeof(unsigned) * CHAR_BIT - cur_bit, + bitstream[cur_int]); + unsigned upper = grab_bits(0, cur_bit + how_many_bits - sizeof(unsigned) * CHAR_BIT, + bitstream[cur_int + 1]) + return lower | upper << (sizeof(unsigned) * CHAR_BIT - cur_bit); } else return grab_bits(cur_bit, how_many_bits, bitstream[cur_int]); @@ -87,16 +87,14 @@ vl_bitstream_parser_show_bits(struct vl_bitstream_parser *parser, cursor = parser->cursor; cur_bitstream = parser->cur_bitstream; - while (1) - { + while (1) { unsigned bits_left = parser->sizes[cur_bitstream] * CHAR_BIT - cursor; unsigned bits_to_show = how_many_bits > bits_left ? bits_left : how_many_bits; bits |= show_bits(cursor, bits_to_show, parser->bitstreams[cur_bitstream]) << shift; - if (how_many_bits > bits_to_show) - { + if (how_many_bits > bits_to_show) { how_many_bits -= bits_to_show; cursor = 0; ++cur_bitstream; @@ -117,8 +115,7 @@ void vl_bitstream_parser_forward(struct vl_bitstream_parser *parser, parser->cursor += how_many_bits; - while (parser->cursor > parser->sizes[parser->cur_bitstream] * CHAR_BIT) - { + while (parser->cursor > parser->sizes[parser->cur_bitstream] * CHAR_BIT) { parser->cursor -= parser->sizes[parser->cur_bitstream++] * CHAR_BIT; assert(parser->cur_bitstream < parser->num_bitstreams); } @@ -134,8 +131,7 @@ void vl_bitstream_parser_rewind(struct vl_bitstream_parser *parser, c = parser->cursor - how_many_bits; - while (c < 0) - { + while (c < 0) { c += parser->sizes[parser->cur_bitstream--] * CHAR_BIT; assert(parser->cur_bitstream < parser->num_bitstreams); } |