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| author | Andrew Mahone <andrew.mahone@gmail.com> | 2009-12-09 02:24:45 +0000 |
|---|---|---|
| committer | Andrew Mahone <andrew.mahone@gmail.com> | 2009-12-09 02:24:45 +0000 |
| commit | 85aad9b3972208b0e34ba0241ebb5314118ae05e (patch) | |
| tree | 27724c068f90b517d4bf9be6ed78d34a01eeba9b /apps/codecs/libfaad/common.h | |
| parent | 3683bb67db4d5d59a55aabed6eaed72233323ee7 (diff) | |
Extend av_log2 in codeclib into a generic for scanning for set bits, which can provide either log2 or leading-zero-count output, and can force mapping 0 input to 0 output if needed (otherwise 0 input produces undefined result). Replace av_log2 in lib/codeclib.h, floor_log2 and wl_min_lzc in libfaad/common.c and common.h, and count_leading_zeros in libalac/alac.c with macros using bs_generic.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23903 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/libfaad/common.h')
| -rw-r--r-- | apps/codecs/libfaad/common.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/apps/codecs/libfaad/common.h b/apps/codecs/libfaad/common.h index ea028b1b8e..fe0d02b228 100644 --- a/apps/codecs/libfaad/common.h +++ b/apps/codecs/libfaad/common.h @@ -399,9 +399,7 @@ typedef real_t complex_t[2]; /* common functions */ uint8_t cpu_has_sse(void); uint32_t random_int(void); -uint32_t ones32(uint32_t x); -uint32_t floor_log2(uint32_t x); -uint32_t wl_min_lzc(uint32_t x); +#define wl_min_lzc(x) bs_generic(x, BS_LOG2|BS_0_0) #ifdef FIXED_POINT #define LOG2_MIN_INF REAL_CONST(-10000) int32_t log2_int(uint32_t val); |