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108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
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#ifndef __COG_UTILS_H__
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#define __COG_UTILS_H__
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#if defined(_MSC_VER)
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#ifndef COG_NO_STDINT_TYPEDEFS
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typedef __int8 int8_t;
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typedef __int16 int16_t;
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typedef __int32 int32_t;
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typedef unsigned __int8 uint8_t;
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typedef unsigned __int16 uint16_t;
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typedef unsigned __int32 uint32_t;
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#endif
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#else
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#include "_stdint.h"
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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typedef void CogMemoryDomain;
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typedef unsigned int cog_bool;
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#ifdef COG_ENABLE_UNSTABLE_API
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#define COG_PICTURE_NUMBER_INVALID (-1)
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#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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#define DIVIDE_ROUND_UP(a,b) (((a) + (b) - 1)/(b))
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#ifndef MIN
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#define MIN(a,b) ((a)<(b) ? (a) : (b))
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#endif
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#ifndef MAX
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#define MAX(a,b) ((a)>(b) ? (a) : (b))
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#endif
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#ifndef CLAMP
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#define CLAMP(x,a,b) ((x)<(a) ? (a) : ((x)>(b) ? (b) : (x)))
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#endif
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#define NEED_CLAMP(x,y,a,b) ((x) < (a) || (y) > (b))
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#define ROUND_UP_SHIFT(x,y) (((x) + (1<<(y)) - 1)>>(y))
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#define ROUND_UP_POW2(x,y) (((x) + (1<<(y)) - 1)&((~0)<<(y)))
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#define ROUND_UP_2(x) ROUND_UP_POW2(x,1)
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#define ROUND_UP_4(x) ROUND_UP_POW2(x,2)
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#define ROUND_UP_8(x) ROUND_UP_POW2(x,3)
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#define ROUND_UP_64(x) ROUND_UP_POW2(x,6)
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#define OFFSET(ptr,offset) ((void *)(((uint8_t *)(ptr)) + (offset)))
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#define ROUND_SHIFT(x,y) (((x) + (1<<((y)-1)))>>(y))
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#define cog_divide(a,b) (((a)<0)?(((a) - (b) + 1)/(b)):((a)/(b)))
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#endif
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#define COG_OFFSET(ptr,offset) ((void *)(((uint8_t *)(ptr)) + (offset)))
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#define COG_GET(ptr, offset, type) (*(type *)((uint8_t *)(ptr) + (offset)) )
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#if defined(__GNUC__) && defined(__GNUC_MINOR__)
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#define COG_GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#else
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#define COG_GNUC_PREREQ(maj, min) 0
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#endif
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#if COG_GNUC_PREREQ(3,3) && defined(__ELF__)
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#define COG_INTERNAL __attribute__ ((visibility ("internal")))
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#else
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#define COG_INTERNAL
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#endif
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#ifdef __cplusplus
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#define COG_BEGIN_DECLS extern "C" {
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#define COG_END_DECLS }
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#else
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#define COG_BEGIN_DECLS
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#define COG_END_DECLS
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#endif
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COG_BEGIN_DECLS
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void * cog_malloc (int size);
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void * cog_malloc0 (int size);
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void * cog_realloc (void *ptr, int size);
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void cog_free (void *ptr);
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int cog_utils_multiplier_to_quant_index (double x);
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int cog_dequantise (int q, int quant_factor, int quant_offset);
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int cog_quantise (int value, int quant_factor, int quant_offset);
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void cog_quantise_s16 (int16_t *dest, int16_t *src, int quant_factor,
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int quant_offset, int n);
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void cog_quantise_s16_table (int16_t *dest, int16_t *src, int quant_index,
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cog_bool is_intra, int n);
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void cog_dequantise_s16 (int16_t *dest, int16_t *src, int quant_factor,
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int quant_offset, int n);
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void cog_dequantise_s16_table (int16_t *dest, int16_t *src, int quant_index,
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cog_bool is_intra, int n);
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double cog_utils_probability_to_entropy (double x);
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double cog_utils_entropy (double a, double total);
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void cog_utils_reduce_fraction (int *n, int *d);
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double cog_utils_get_time (void);
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COG_END_DECLS
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#endif
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