Displaying 10 results from an estimated 10 matches for "byte_to_unary_t".
2014 Oct 11
1
bitmath.h static array
There is a function FLAC__clz_soft_uint32 in bitmath.h:
static inline unsigned int FLAC__clz_soft_uint32(unsigned int word)
{
static const unsigned char byte_to_unary_table[] = {
8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
....................................
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
};
return (word) > 0xffffff ? byte_to_unary_table[(word) >> 24] :
(word) > 0xffff ? byte_to_unary_table[(word) &g...
2012 May 09
1
[PATCH 2/2] bitmath: Finish up optimizations
...clz (unsigned int x) If x is 0, the result is undefined" */
-static inline uint32_t
-COUNT_ZERO_MSBS (uint32_t word)
-{
- if (word == 0)
- return 32;
- return __builtin_clz (word);
-}
-#else
-/* counts the # of zero MSBs in a word */
-#define COUNT_ZERO_MSBS(word) ( \
- (word) > 0xffffff ? byte_to_unary_table[(word) >> 24] : \
- !(word) ? 32 : \
- (word) > 0xffff ? byte_to_unary_table[(word) >> 16] + 8 : \
- (word) > 0xff ? byte_to_unary_table[(word) >> 8] + 16 : \
- byte_to_unary_table[(word)] + 24 \
-)
-#endif
-
-
/*
* This should be at least twice as large as the larges...
2004 Sep 10
4
bitbuffer optimizations
...-- src/libFLAC/bitbuffer.c.orig 2003-01-30 17:36:01.000000000 +0100
+++ src/libFLAC/bitbuffer.c 2003-01-30 21:53:18.000000000 +0100
@@ -51,6 +51,25 @@
*/
static const unsigned FLAC__BITBUFFER_DEFAULT_CAPACITY = ((65536 - 64) * 8) / FLAC__BITS_PER_BLURB; /* blurbs */
+static const unsigned char byte_to_unary_table[] = {
+ 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
2005 Jan 01
2
libFLAC bitbuffer optimizations
...e archives:
--- orig/src/libFLAC/bitbuffer.c
+++ mod/src/libFLAC/bitbuffer.c
@@ -62,6 +62,24 @@
* keeping in mind the limit from the first paragraph.
*/
static const unsigned FLAC__BITBUFFER_DEFAULT_CAPACITY = ((65536 - 64) * 8) / FLAC__BITS_PER_BLURB; /* blurbs */
+static const unsigned char byte_to_unary_table[] = {
+ 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1...
2008 Mar 14
2
bitreader optimizations
...5
diff -u -r1.15 bitreader.c
--- src/libFLAC/bitreader.c 28 Feb 2008 05:34:26 -0000 1.15
+++ src/libFLAC/bitreader.c 14 Mar 2008 11:07:07 -0000
@@ -69,13 +69,12 @@
#endif
/* counts the # of zero MSBs in a word */
#define COUNT_ZERO_MSBS(word) ( \
- (word) <= 0xffff ? \
- ( (word) <= 0xff? byte_to_unary_table[word] + 24 : byte_to_unary_table[(word) >> 8] + 16 ) : \
- ( (word) <= 0xffffff? byte_to_unary_table[word >> 16] + 8 : byte_to_unary_table[(word) >> 24] ) \
+ word > 0xffffff ? byte_to_unary_table[(word) >> 24] : \
+ !word ? 32 : \
+ word > 0xffff ? byte_to_una...
2004 Dec 28
2
libFLAC bitbuffer optimizations
Pulled from my Arch archive, this following patch seems to have made
quite a difference in getting my ARM7TDMI chip to play FLAC (compression
levels 0-2) on my ipod. I don't have benchmarks with hard numbers, but
playing with skips vs playing without skips is a fairly noticeable
difference.
memcpy and memset on uClibc are optimized in asm for the ARM7TDMI in
uClibc. Other hardware/libc
2012 Aug 28
3
[PATCH 1/3] Make FLAC__clz_soft_uint32 static.
...h
+++ b/src/libFLAC/include/private/bitmath.h
@@ -42,7 +42,7 @@
#endif
/* Will never be emitted for MSVC, GCC, Intel compilers */
-inline unsigned int FLAC__clz_soft_uint32(unsigned int word)
+static inline unsigned int FLAC__clz_soft_uint32(unsigned int word)
{
static const unsigned char byte_to_unary_table[] = {
8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
--
1.7.7.6
2012 Jun 24
3
Patch for cross compilation with MinGW32
...8 100644
--- src/libFLAC/include/private/bitmath.h
+++ src/libFLAC/include/private/bitmath.h
@@ -42,6 +42,7 @@
#endif
/* Will never be emitted for MSVC, GCC, Intel compilers */
+#ifndef __MINGW32__
inline unsigned int FLAC__clz_soft_uint32(unsigned int word)
{
static const unsigned char byte_to_unary_table[] = {
@@ -69,6 +70,7 @@ inline unsigned int FLAC__clz_soft_uint32(unsigned int word)
(word) > 0xff ? byte_to_unary_table[(word) >> 8] + 16 :
byte_to_unary_table[(word)] + 24;
}
+#endif
static inline unsigned int FLAC__clz_uint32(FLAC__uint32 v)
{
diff --git src/share/gra...
2012 Apr 05
2
[PATCH 2/2] V2: Use a single definition of MIN and MAX in sources
...@@ -38,6 +38,7 @@
#include "private/bitmath.h"
#include "private/bitreader.h"
#include "private/crc.h"
+#include "private/macros.h"
#include "FLAC/assert.h"
#include "share/endswap.h"
@@ -109,15 +110,6 @@ static const unsigned char byte_to_unary_table[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
-#ifdef min
-#undef min
-#endif
-#define min(x,y) ((x)<(y)?(x):(y))
-#ifdef max
-#undef max
-#endif
-#define max(x,y) ((x)>(y)?(x):(y))
-
/* adjust for compilers that can't understand using LLU suffix for uint64_t literals...
2012 Apr 07
1
[PATCH 2/2] Update and improve autotools build
...0:2 $(LOCAL_EXTRA_LDFLAGS) @LT_NO_UNDEFINED@
libFLAC_la_SOURCES = \
bitmath.c \
bitreader.c \
diff --git a/src/libFLAC/bitreader.c b/src/libFLAC/bitreader.c
index 7e17fd8..ae515a0 100644
--- a/src/libFLAC/bitreader.c
+++ b/src/libFLAC/bitreader.c
@@ -117,10 +117,6 @@ static const unsigned char byte_to_unary_table[] = {
#define FLAC__U64L(x) x##LLU
#endif
-#ifndef FLaC__INLINE
-#define FLaC__INLINE
-#endif
-
/* WATCHOUT: assembly routines rely on the order in which these fields are declared */
struct FLAC__BitReader {
/* any partially-consumed word at the head will stay right-justified as bits ar...