1 /***************************************************************************/ |
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2 /* */ |
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3 /* ftmisc.h */ |
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4 /* */ |
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5 /* Miscellaneous macros for stand-alone rasterizer (specification */ |
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6 /* only). */ |
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7 /* */ |
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8 /* Copyright 2005, 2009, 2010 by */ |
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9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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10 /* */ |
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11 /* This file is part of the FreeType project, and may only be used */ |
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12 /* modified and distributed under the terms of the FreeType project */ |
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13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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14 /* this file you indicate that you have read the license and */ |
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15 /* understand and accept it fully. */ |
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16 /* */ |
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17 /***************************************************************************/ |
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18 |
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19 |
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20 /***************************************************/ |
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21 /* */ |
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22 /* This file is *not* portable! You have to adapt */ |
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23 /* its definitions to your platform. */ |
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24 /* */ |
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25 /***************************************************/ |
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26 |
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27 #ifndef __FTMISC_H__ |
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28 #define __FTMISC_H__ |
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29 |
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30 |
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31 /* memset */ |
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32 #include FT_CONFIG_STANDARD_LIBRARY_H |
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33 |
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34 #define FT_BEGIN_HEADER |
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35 #define FT_END_HEADER |
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36 |
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37 #define FT_LOCAL_DEF( x ) static x |
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38 |
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39 |
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40 /* from include/freetype2/fttypes.h */ |
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41 |
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42 typedef unsigned char FT_Byte; |
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43 typedef signed int FT_Int; |
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44 typedef unsigned int FT_UInt; |
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45 typedef signed long FT_Long; |
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46 typedef unsigned long FT_ULong; |
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47 typedef signed long FT_F26Dot6; |
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48 typedef int FT_Error; |
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49 |
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50 #define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \ |
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51 ( ( (FT_ULong)_x1 << 24 ) | \ |
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52 ( (FT_ULong)_x2 << 16 ) | \ |
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53 ( (FT_ULong)_x3 << 8 ) | \ |
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54 (FT_ULong)_x4 ) |
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55 |
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56 |
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57 /* from include/freetype2/ftsystem.h */ |
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58 |
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59 typedef struct FT_MemoryRec_* FT_Memory; |
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60 |
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61 typedef void* (*FT_Alloc_Func)( FT_Memory memory, |
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62 long size ); |
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63 |
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64 typedef void (*FT_Free_Func)( FT_Memory memory, |
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65 void* block ); |
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66 |
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67 typedef void* (*FT_Realloc_Func)( FT_Memory memory, |
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68 long cur_size, |
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69 long new_size, |
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70 void* block ); |
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71 |
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72 typedef struct FT_MemoryRec_ |
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73 { |
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74 void* user; |
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75 |
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76 FT_Alloc_Func alloc; |
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77 FT_Free_Func free; |
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78 FT_Realloc_Func realloc; |
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79 |
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80 } FT_MemoryRec; |
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81 |
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82 |
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83 /* from src/ftcalc.c */ |
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84 |
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85 #if ( defined _WIN32 || defined _WIN64 ) |
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86 |
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87 typedef __int64 FT_Int64; |
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88 |
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89 #else |
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90 |
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91 #include "inttypes.h" |
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92 |
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93 typedef int64_t FT_Int64; |
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94 |
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95 #endif |
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96 |
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97 |
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98 static FT_Long |
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99 FT_MulDiv( FT_Long a, |
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100 FT_Long b, |
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101 FT_Long c ) |
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102 { |
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103 FT_Int s; |
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104 FT_Long d; |
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105 |
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106 |
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107 s = 1; |
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108 if ( a < 0 ) { a = -a; s = -1; } |
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109 if ( b < 0 ) { b = -b; s = -s; } |
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110 if ( c < 0 ) { c = -c; s = -s; } |
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111 |
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112 d = (FT_Long)( c > 0 ? ( (FT_Int64)a * b + ( c >> 1 ) ) / c |
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113 : 0x7FFFFFFFL ); |
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114 |
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115 return ( s > 0 ) ? d : -d; |
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116 } |
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117 |
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118 #endif /* __FTMISC_H__ */ |
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119 |
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120 |
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121 /* END */ |
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