77#include <jasper/jas_config.h>  
   97#if defined(JAS_ENABLE_32BIT) 
   99#define PRIjas_fix PRIiLEAST32 
  102#define PRIjas_fix PRIiLEAST64 
  108#if defined(JAS_ENABLE_32BIT) 
  109typedef int_least64_t jas_fix_big_t;
 
  111#if defined(JAS_HAVE_INT128_T) 
  112typedef __int128_t jas_fix_big_t;
 
  114typedef int_least64_t jas_fix_big_t;
 
  123#define JAS_FIX_ZERO(fix_t, fracbits) \ 
  124        JAS_INTTOFIX(fix_t, fracbits, 0) 
 
  127#define JAS_FIX_ONE(fix_t, fracbits) \ 
  128        JAS_INTTOFIX(fix_t, fracbits, 1) 
 
  131#define JAS_FIX_HALF(fix_t, fracbits) \ 
  132        (JAS_CAST(fix_t, 1) << ((fracbits) - 1)) 
 
  139#define JAS_INTTOFIX(fix_t, fracbits, x) \ 
  140        (JAS_CAST(fix_t, x) << (fracbits)) 
 
  143#define JAS_FIXTOINT(fix_t, fracbits, x) \ 
  144        JAS_CAST(int, (x) >> (fracbits)) 
 
  147#define JAS_FIXTODBL(fix_t, fracbits, x) \ 
  148        (JAS_CAST(double, x) / JAS_FIX_ONE(fix_t, fracbits)) 
 
  151#define JAS_DBLTOFIX(fix_t, fracbits, x) \ 
  152        JAS_CAST(fix_t, ((x) * JAS_CAST(double, JAS_FIX_ONE(fix_t, fracbits)))) 
 
  165#if !defined(DEBUG_OVERFLOW) 
  166#define JAS_FIX_ADD                     JAS_FIX_ADD_FAST 
  168#define JAS_FIX_ADD                     JAS_FIX_ADD_OFLOW 
  172#define JAS_FIX_ADD_FAST(fix_t, fracbits, x, y) ((x) + (y)) 
  175#define JAS_FIX_ADD_OFLOW(fix_t, fracbits, x, y) \ 
  177          (((y) >= 0) ? ((x) + (y) >= 0 || JAS_FIX_OFLOW(), (x) + (y)) : \ 
  179          (((y) >= 0) ? ((x) + (y)) : ((x) + (y) < 0 || JAS_FIX_OFLOW(), \ 
 
  183#if !defined(DEBUG_OVERFLOW) 
  184#define JAS_FIX_MUL                     JAS_FIX_MUL_FAST 
  186#define JAS_FIX_MUL                     JAS_FIX_MUL_OFLOW 
  191#define JAS_FIX_MUL_FAST(fix_t, fracbits, bigfix_t, x, y) \ 
  192        JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y)) >> \ 
 
  197#define JAS_FIX_MUL_OFLOW(fix_t, fracbits, bigfix_t, x, y) \ 
  198        ((JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y) >> (fracbits)) == \ 
  199          JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y) >> \ 
  201          JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) * JAS_CAST(bigfix_t, y) >> \ 
  202          (fracbits))) : JAS_FIX_OFLOW()) 
 
  205#if !defined(DEBUG_OVERFLOW) 
  206#define JAS_FIX_MULBYINT        JAS_FIX_MULBYINT_FAST 
  208#define JAS_FIX_MULBYINT        JAS_FIX_MULBYINT_OFLOW 
  213#define JAS_FIX_MULBYINT_FAST(fix_t, fracbits, x, y) \ 
  214        JAS_CAST(fix_t, ((x) * (y))) 
 
  218#define JAS_FIX_MULBYINT_OFLOW(fix_t, fracbits, x, y) \ 
  219        JAS_FIX_MULBYINT_FAST(fix_t, fracbits, x, y) 
 
  222#if !defined(DEBUG_OVERFLOW) 
  223#define JAS_FIX_DIV                     JAS_FIX_DIV_FAST 
  225#define JAS_FIX_DIV                     JAS_FIX_DIV_UFLOW 
  230#define JAS_FIX_DIV_FAST(fix_t, fracbits, bigfix_t, x, y) \ 
  231        JAS_CAST(fix_t, (JAS_CAST(bigfix_t, x) << (fracbits)) / (y)) 
 
  235#define JAS_FIX_DIV_UFLOW(fix_t, fracbits, bigfix_t, x, y) \ 
  236        JAS_FIX_DIV_FAST(fix_t, fracbits, bigfix_t, x, y) 
 
  239#if !defined(DEBUG_OVERFLOW) 
  240#define JAS_FIX_NEG                     JAS_FIX_NEG_FAST 
  242#define JAS_FIX_NEG                     JAS_FIX_NEG_OFLOW 
  246#define JAS_FIX_NEG_FAST(fix_t, fracbits, x) \ 
 
  252#define JAS_FIX_NEG_OFLOW(fix_t, fracbits, x) \ 
  253        (((x) < 0) ? (-(x) > 0 || JAS_FIX_OFLOW(), -(x)) : (-(x))) 
 
  256#if !defined(DEBUG_OVERFLOW) 
  257#define JAS_FIX_ASL                     JAS_FIX_ASL_FAST 
  259#define JAS_FIX_ASL                     JAS_FIX_ASL_OFLOW 
  264#define JAS_FIX_ASL_FAST(fix_t, fracbits, x, n) \ 
 
  269#define JAS_FIX_ASL_OFLOW(fix_t, fracbits, x, n) \ 
  270        ((((x) << (n)) >> (n)) == (x) || JAS_FIX_OFLOW(), (x) << (n)) 
 
  273#if !defined(DEBUG_OVERFLOW) 
  274#define JAS_FIX_ASR                     JAS_FIX_ASR_FAST 
  276#define JAS_FIX_ASR                     JAS_FIX_ASR_UFLOW 
  281#define JAS_FIX_ASR_FAST(fix_t, fracbits, x, n) \ 
 
  286#define JAS_FIX_ASR_UFLOW(fix_t, fracbits, x, n) \ 
  287        JAS_FIX_ASR_FAST(fix_t, fracbits, x, n) 
 
  294#define JAS_FIX_SUB(fix_t, fracbits, x, y) \ 
  295        JAS_FIX_ADD(fix_t, fracbits, x, JAS_FIX_NEG(fix_t, fracbits, y)) 
 
  298#define JAS_FIX_PLUSEQ(fix_t, fracbits, x, y) \ 
  299        ((x) = JAS_FIX_ADD(fix_t, fracbits, x, y)) 
 
  302#define JAS_FIX_MINUSEQ(fix_t, fracbits, x, y) \ 
  303        ((x) = JAS_FIX_SUB(fix_t, fracbits, x, y)) 
 
  306#define JAS_FIX_MULEQ(fix_t, fracbits, bigfix_t, x, y) \ 
  307        ((x) = JAS_FIX_MUL(fix_t, fracbits, bigfix_t, x, y)) 
 
  314#define JAS_FIX_ABS(fix_t, fracbits, x) \ 
  315        (((x) >= 0) ? (x) : (JAS_FIX_NEG(fix_t, fracbits, x))) 
 
  318#define JAS_FIX_ISINT(fix_t, fracbits, x) \ 
  319        (JAS_FIX_FLOOR(fix_t, fracbits, x) == (x)) 
 
  322#define JAS_FIX_SGN(fix_t, fracbits, x) \ 
  323        ((x) >= 0 ? 1 : (-1)) 
 
  330#define JAS_FIX_CMP(fix_t, fracbits, x, y) \ 
  331        ((x) > (y) ? 1 : (((x) == (y)) ? 0 : (-1))) 
 
  334#define JAS_FIX_LT(fix_t, fracbits, x, y) \ 
 
  338#define JAS_FIX_LTE(fix_t, fracbits, x, y) \ 
 
  342#define JAS_FIX_GT(fix_t, fracbits, x, y) \ 
 
  346#define JAS_FIX_GTE(fix_t, fracbits, x, y) \ 
 
  354#define JAS_FIX_ROUND(fix_t, fracbits, x) \ 
  355        (((x) < 0) ? JAS_FIX_FLOOR(fix_t, fracbits, JAS_FIX_ADD(fix_t, fracbits, \ 
  356          (x), JAS_FIX_HALF(fix_t, fracbits))) : \ 
  357          JAS_FIX_NEG(fix_t, fracbits, JAS_FIX_FLOOR(fix_t, fracbits, \ 
  358          JAS_FIX_ADD(fix_t, fracbits, (-(x)), JAS_FIX_HALF(fix_t, fracbits))))) 
 
  362#define JAS_FIX_FLOOR(fix_t, fracbits, x) \ 
  363        ((x) & (~(JAS_FIX_ONE(fix_t, fracbits) - 1))) 
 
  371#define JAS_FIX_OFLOW() \ 
  372        jas_logerrorf("overflow error: file %s, line %d\n", __FILE__, __LINE__) 
  375#define JAS_FIX_UFLOW() \ 
  376        jas_logerrorf("underflow error: file %s, line %d\n", __FILE__, __LINE__) 
  382JAS_ATTRIBUTE_DISABLE_UBSAN
 
  388JAS_ATTRIBUTE_DISABLE_UBSAN
 
#define JAS_FIX_ASL
Definition jas_fix.h:257
int_least64_t jas_fix_t
Definition jas_fix.h:101
#define JAS_FIX_ASR
Definition jas_fix.h:274