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Allow arch-overrides for all common.h clip and log2 functions

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Originally committed as revision 24087 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-07-07 17:27:45 +00:00
parent a955b59658
commit 216b43aed2
1 changed files with 32 additions and 8 deletions
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40
libavutil/common.h
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@ -100,7 +100,7 @@ static inline av_const int av_log2_16bit_c(unsigned int v)
* @param amax maximum value of the clip range * @param amax maximum value of the clip range
* @return clipped value * @return clipped value
*/ */
static inline av_const int av_clip(int a, int amin, int amax) static inline av_const int av_clip_c(int a, int amin, int amax)
{ {
if (a < amin) return amin; if (a < amin) return amin;
else if (a > amax) return amax; else if (a > amax) return amax;
@ -112,7 +112,7 @@ static inline av_const int av_clip(int a, int amin, int amax)
* @param a value to clip * @param a value to clip
* @return clipped value * @return clipped value
*/ */
static inline av_const uint8_t av_clip_uint8(int a) static inline av_const uint8_t av_clip_uint8_c(int a)
{ {
if (a&(~0xFF)) return (-a)>>31; if (a&(~0xFF)) return (-a)>>31;
else return a; else return a;
@ -123,7 +123,7 @@ static inline av_const uint8_t av_clip_uint8(int a)
* @param a value to clip * @param a value to clip
* @return clipped value * @return clipped value
*/ */
static inline av_const int8_t av_clip_int8(int a) static inline av_const int8_t av_clip_int8_c(int a)
{ {
if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F; if ((a+0x80) & ~0xFF) return (a>>31) ^ 0x7F;
else return a; else return a;
@ -134,7 +134,7 @@ static inline av_const int8_t av_clip_int8(int a)
* @param a value to clip * @param a value to clip
* @return clipped value * @return clipped value
*/ */
static inline av_const uint16_t av_clip_uint16(int a) static inline av_const uint16_t av_clip_uint16_c(int a)
{ {
if (a&(~0xFFFF)) return (-a)>>31; if (a&(~0xFFFF)) return (-a)>>31;
else return a; else return a;
@ -145,7 +145,7 @@ static inline av_const uint16_t av_clip_uint16(int a)
* @param a value to clip * @param a value to clip
* @return clipped value * @return clipped value
*/ */
static inline av_const int16_t av_clip_int16(int a) static inline av_const int16_t av_clip_int16_c(int a)
{ {
if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF; if ((a+0x8000) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
else return a; else return a;
@ -156,7 +156,7 @@ static inline av_const int16_t av_clip_int16(int a)
* @param a value to clip * @param a value to clip
* @return clipped value * @return clipped value
*/ */
static inline av_const int32_t av_clipl_int32(int64_t a) static inline av_const int32_t av_clipl_int32_c(int64_t a)
{ {
if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF; if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (a>>63) ^ 0x7FFFFFFF;
else return a; else return a;
@ -169,7 +169,7 @@ static inline av_const int32_t av_clipl_int32(int64_t a)
* @param amax maximum value of the clip range * @param amax maximum value of the clip range
* @return clipped value * @return clipped value
*/ */
static inline av_const float av_clipf(float a, float amin, float amax) static inline av_const float av_clipf_c(float a, float amin, float amax)
{ {
if (a < amin) return amin; if (a < amin) return amin;
else if (a > amax) return amax; else if (a > amax) return amax;
@ -180,7 +180,7 @@ static inline av_const float av_clipf(float a, float amin, float amax)
* @param x value used to compute ceil(log2(x)) * @param x value used to compute ceil(log2(x))
* @return computed ceiling of log2(x) * @return computed ceiling of log2(x)
*/ */
static inline av_const int av_ceil_log2(int x) static inline av_const int av_ceil_log2_c(int x)
{ {
return av_log2((x - 1) << 1); return av_log2((x - 1) << 1);
} }
@ -320,3 +320,27 @@ static inline av_const int av_ceil_log2(int x)
#ifndef av_log2_16bit #ifndef av_log2_16bit
# define av_log2_16bit av_log2_16bit_c # define av_log2_16bit av_log2_16bit_c
#endif #endif
#ifndef av_ceil_log2
# define av_ceil_log2 av_ceil_log2_c
#endif
#ifndef av_clip
# define av_clip av_clip_c
#endif
#ifndef av_clip_uint8
# define av_clip_uint8 av_clip_uint8_c
#endif
#ifndef av_clip_int8
# define av_clip_int8 av_clip_int8_c
#endif
#ifndef av_clip_uint16
# define av_clip_uint16 av_clip_uint16_c
#endif
#ifndef av_clip_int16
# define av_clip_int16 av_clip_int16_c
#endif
#ifndef av_clipl_int32
# define av_clipl_int32 av_clipl_int32_c
#endif
#ifndef av_clipf
# define av_clipf av_clipf_c
#endif