src/include/eina_fp.h

   1 /* EINA - EFL data type library
   2  * Copyright (C) 2007-2008 Jorge Luis Zapata Muga
   3  * Copyright (C) 2009 Cedric BAIL
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library;
  17  * if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef EINA_FP_H_
  21 # define EINA_FP_H_
  22
  23 #include "eina_types.h"
  24
  25 #ifdef _MSC_VER
  26 typedef unsigned __int64 uint64_t;
  27 typedef signed __int64   int64_t;
  28 typedef signed int       int32_t;
  29 #else
  30 # include <stdint.h>
  31 #endif
  32
  33 #define EINA_F32P32_PI 0x00000003243f6a89
  34
  35 typedef int64_t Eina_F32p32;
  36 typedef int32_t Eina_F16p16;
  37 typedef int32_t Eina_F8p24;
  38
  39 static inline Eina_F32p32  eina_f32p32_int_from(int32_t v);
  40 static inline int32_t      eina_f32p32_int_to(Eina_F32p32 v);
  41 static inline Eina_F32p32  eina_f32p32_double_from(double v);
  42 static inline double       eina_f32p32_double_to(Eina_F32p32 v);
  43
  44 static inline Eina_F32p32  eina_f32p32_add(Eina_F32p32 a,
  45                                            Eina_F32p32 b);
  46 static inline Eina_F32p32  eina_f32p32_sub(Eina_F32p32 a,
  47                                            Eina_F32p32 b);
  48 static inline Eina_F32p32  eina_f32p32_mul(Eina_F32p32 a,
  49                                            Eina_F32p32 b);
  50 static inline Eina_F32p32  eina_f32p32_scale(Eina_F32p32 a,
  51                                              int         b);
  52 static inline Eina_F32p32  eina_f32p32_div(Eina_F32p32 a,
  53                                            Eina_F32p32 b);
  54 static inline Eina_F32p32  eina_f32p32_sqrt(Eina_F32p32 a);
  55 static inline unsigned int eina_f32p32_fracc_get(Eina_F32p32 v);
  56
  57 // dont use llabs - issues if not on 64bit
  58 #define eina_fp32p32_llabs(a) ((a < 0) ? -(a) : (a))
  59
  60 EAPI Eina_F32p32           eina_f32p32_cos(Eina_F32p32 a);
  61 EAPI Eina_F32p32           eina_f32p32_sin(Eina_F32p32 a);
  62
  63 static inline Eina_F16p16  eina_f16p16_int_from(int32_t v);
  64 static inline int32_t      eina_f16p16_int_to(Eina_F16p16 v);
  65 static inline Eina_F16p16  eina_f16p16_float_from(float v);
  66 static inline float        eina_f16p16_float_to(Eina_F16p16 v);
  67
  68 static inline Eina_F16p16  eina_f16p16_add(Eina_F16p16 a,
  69                                            Eina_F16p16 b);
  70 static inline Eina_F16p16  eina_f16p16_sub(Eina_F16p16 a,
  71                                            Eina_F16p16 b);
  72 static inline Eina_F16p16  eina_f16p16_mul(Eina_F16p16 a,
  73                                            Eina_F16p16 b);
  74 static inline Eina_F16p16  eina_f16p16_scale(Eina_F16p16 a,
  75                                              int         b);
  76 static inline Eina_F16p16  eina_f16p16_div(Eina_F16p16 a,
  77                                            Eina_F16p16 b);
  78 static inline Eina_F16p16  eina_f16p16_sqrt(Eina_F16p16 a);
  79 static inline unsigned int eina_f16p16_fracc_get(Eina_F16p16 v);
  80
  81 static inline Eina_F8p24   eina_f8p24_int_from(int32_t v);
  82 static inline int32_t      eina_f8p24_int_to(Eina_F8p24 v);
  83 static inline Eina_F8p24   eina_f8p24_float_from(float v);
  84 static inline float        eina_f8p24_float_to(Eina_F8p24 v);
  85
  86 static inline Eina_F8p24   eina_f8p24_add(Eina_F8p24 a,
  87                                           Eina_F8p24 b);
  88 static inline Eina_F8p24   eina_f8p24_sub(Eina_F8p24 a,
  89                                           Eina_F8p24 b);
  90 static inline Eina_F8p24   eina_f8p24_mul(Eina_F8p24 a,
  91                                           Eina_F8p24 b);
  92 static inline Eina_F8p24   eina_f8p24_scale(Eina_F8p24 a,
  93                                             int        b);
  94 static inline Eina_F8p24   eina_f8p24_div(Eina_F8p24 a,
  95                                           Eina_F8p24 b);
  96 static inline Eina_F8p24   eina_f8p24_sqrt(Eina_F8p24 a);
  97 static inline unsigned int eina_f8p24_fracc_get(Eina_F8p24 v);
  98
  99 static inline Eina_F32p32  eina_f16p16_to_f32p32(Eina_F16p16 a);
 100 static inline Eina_F32p32  eina_f8p24_to_f32p32(Eina_F8p24 a);
 101 static inline Eina_F16p16  eina_f32p32_to_f16p16(Eina_F32p32 a);
 102 static inline Eina_F16p16  eina_f8p24_to_f16p16(Eina_F8p24 a);
 103 static inline Eina_F8p24   eina_f32p32_to_f8p24(Eina_F32p32 a);
 104 static inline Eina_F8p24   eina_f16p16_to_f8p24(Eina_F16p16 a);
 105
 106 #include "eina_inline_f32p32.x"
 107 #include "eina_inline_f16p16.x"
 108 #include "eina_inline_f8p24.x"
 109 #include "eina_inline_fp.x"
 110
 111 #endif