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4680 | right-hear | 1 | /***************************************************************************/ |
2 | /* */ |
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3 | /* ftconfig.h */ |
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4 | /* */ |
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5 | /* ANSI-specific configuration file (specification only). */ |
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6 | /* */ |
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7 | /* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2010 by */ |
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8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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9 | /* */ |
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10 | /* This file is part of the FreeType project, and may only be used, */ |
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11 | /* modified, and distributed under the terms of the FreeType project */ |
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12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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13 | /* this file you indicate that you have read the license and */ |
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14 | /* understand and accept it fully. */ |
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15 | /* */ |
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16 | /***************************************************************************/ |
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17 | |||
18 | |||
19 | /*************************************************************************/ |
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20 | /* */ |
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21 | /* This header file contains a number of macro definitions that are used */ |
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22 | /* by the rest of the engine. Most of the macros here are automatically */ |
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23 | /* determined at compile time, and you should not need to change it to */ |
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24 | /* port FreeType, except to compile the library with a non-ANSI */ |
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25 | /* compiler. */ |
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26 | /* */ |
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27 | /* Note however that if some specific modifications are needed, we */ |
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28 | /* advise you to place a modified copy in your build directory. */ |
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29 | /* */ |
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30 | /* The build directory is usually `freetype/builds/ |
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31 | /* contains system-specific files that are always included first when */ |
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32 | /* building the library. */ |
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33 | /* */ |
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34 | /* This ANSI version should stay in `include/freetype/config'. */ |
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35 | /* */ |
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36 | /*************************************************************************/ |
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37 | |||
38 | #ifndef __FTCONFIG_H__ |
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39 | #define __FTCONFIG_H__ |
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40 | |||
41 | #include |
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42 | #include FT_CONFIG_OPTIONS_H |
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43 | #include FT_CONFIG_STANDARD_LIBRARY_H |
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44 | |||
45 | |||
46 | FT_BEGIN_HEADER |
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47 | |||
48 | |||
49 | /*************************************************************************/ |
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50 | /* */ |
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51 | /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ |
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52 | /* */ |
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53 | /* These macros can be toggled to suit a specific system. The current */ |
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54 | /* ones are defaults used to compile FreeType in an ANSI C environment */ |
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55 | /* (16bit compilers are also supported). Copy this file to your own */ |
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56 | /* `freetype/builds/ |
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57 | /* */ |
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58 | /*************************************************************************/ |
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59 | |||
60 | |||
61 | /* There are systems (like the Texas Instruments 'C54x) where a `char' */ |
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62 | /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ |
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63 | /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ |
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64 | /* is probably unexpected. */ |
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65 | /* */ |
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66 | /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ |
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67 | /* `char' type. */ |
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68 | |||
69 | #ifndef FT_CHAR_BIT |
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70 | #define FT_CHAR_BIT CHAR_BIT |
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71 | #endif |
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72 | |||
73 | |||
74 | /* The size of an `int' type. */ |
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75 | #if FT_UINT_MAX == 0xFFFFUL |
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76 | #define FT_SIZEOF_INT (16 / FT_CHAR_BIT) |
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77 | #elif FT_UINT_MAX == 0xFFFFFFFFUL |
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78 | #define FT_SIZEOF_INT (32 / FT_CHAR_BIT) |
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79 | #elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL |
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80 | #define FT_SIZEOF_INT (64 / FT_CHAR_BIT) |
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81 | #else |
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82 | #error "Unsupported size of `int' type!" |
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83 | #endif |
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84 | |||
85 | /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ |
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86 | /* DM642) is recognized but avoided. */ |
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87 | #if FT_ULONG_MAX == 0xFFFFFFFFUL |
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88 | #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) |
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89 | #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL |
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90 | #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) |
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91 | #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL |
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92 | #define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) |
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93 | #else |
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94 | #error "Unsupported size of `long' type!" |
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95 | #endif |
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96 | |||
97 | |||
98 | /* Preferred alignment of data */ |
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99 | #define FT_ALIGNMENT 8 |
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100 | |||
101 | |||
102 | /* FT_UNUSED is a macro used to indicate that a given parameter is not */ |
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103 | /* used -- this is only used to get rid of unpleasant compiler warnings */ |
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104 | #ifndef FT_UNUSED |
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105 | #define FT_UNUSED( arg ) ( (arg) = (arg) ) |
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106 | #endif |
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107 | |||
108 | |||
109 | /*************************************************************************/ |
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110 | /* */ |
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111 | /* AUTOMATIC CONFIGURATION MACROS */ |
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112 | /* */ |
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113 | /* These macros are computed from the ones defined above. Don't touch */ |
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114 | /* their definition, unless you know precisely what you are doing. No */ |
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115 | /* porter should need to mess with them. */ |
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116 | /* */ |
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117 | /*************************************************************************/ |
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118 | |||
119 | |||
120 | /*************************************************************************/ |
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121 | /* */ |
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122 | /* Mac support */ |
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123 | /* */ |
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124 | /* This is the only necessary change, so it is defined here instead */ |
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125 | /* providing a new configuration file. */ |
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126 | /* */ |
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127 | #if ( defined( __APPLE__ ) && !defined( DARWIN_NO_CARBON ) ) || \ |
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128 | ( defined( __MWERKS__ ) && defined( macintosh ) ) |
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129 | /* no Carbon frameworks for 64bit 10.4.x */ |
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130 | #include "AvailabilityMacros.h" |
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131 | #if defined( __LP64__ ) && \ |
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132 | ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) |
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133 | #define DARWIN_NO_CARBON 1 |
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134 | #else |
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135 | #define FT_MACINTOSH 1 |
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136 | #endif |
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137 | |||
138 | #elif defined( __SC__ ) || defined( __MRC__ ) |
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139 | /* Classic MacOS compilers */ |
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140 | #include "ConditionalMacros.h" |
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141 | #if TARGET_OS_MAC |
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142 | #define FT_MACINTOSH 1 |
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143 | #endif |
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144 | |||
145 | #endif |
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146 | |||
147 | |||
148 | /*************************************************************************/ |
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149 | /* */ |
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150 | /* |
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151 | /* basic_types */ |
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152 | /* */ |
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153 | /*************************************************************************/ |
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154 | |||
155 | |||
156 | /*************************************************************************/ |
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157 | /* */ |
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158 | /* |
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159 | /* FT_Int16 */ |
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160 | /* */ |
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161 | /* |
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162 | /* A typedef for a 16bit signed integer type. */ |
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163 | /* */ |
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164 | typedef signed short FT_Int16; |
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165 | |||
166 | |||
167 | /*************************************************************************/ |
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168 | /* */ |
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169 | /* |
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170 | /* FT_UInt16 */ |
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171 | /* */ |
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172 | /* |
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173 | /* A typedef for a 16bit unsigned integer type. */ |
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174 | /* */ |
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175 | typedef unsigned short FT_UInt16; |
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176 | |||
177 | /* */ |
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178 | |||
179 | |||
180 | /* this #if 0 ... #endif clause is for documentation purposes */ |
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181 | #if 0 |
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182 | |||
183 | /*************************************************************************/ |
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184 | /* */ |
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185 | /* |
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186 | /* FT_Int32 */ |
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187 | /* */ |
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188 | /* |
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189 | /* A typedef for a 32bit signed integer type. The size depends on */ |
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190 | /* the configuration. */ |
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191 | /* */ |
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192 | typedef signed XXX FT_Int32; |
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193 | |||
194 | |||
195 | /*************************************************************************/ |
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196 | /* */ |
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197 | /* |
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198 | /* FT_UInt32 */ |
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199 | /* */ |
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200 | /* A typedef for a 32bit unsigned integer type. The size depends on */ |
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201 | /* the configuration. */ |
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202 | /* */ |
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203 | typedef unsigned XXX FT_UInt32; |
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204 | |||
205 | /* */ |
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206 | |||
207 | #endif |
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208 | |||
209 | #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) |
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210 | |||
211 | typedef signed int FT_Int32; |
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212 | typedef unsigned int FT_UInt32; |
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213 | |||
214 | #elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) |
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215 | |||
216 | typedef signed long FT_Int32; |
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217 | typedef unsigned long FT_UInt32; |
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218 | |||
219 | #else |
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220 | #error "no 32bit type found -- please check your configuration files" |
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221 | #endif |
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222 | |||
223 | |||
224 | /* look up an integer type that is at least 32 bits */ |
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225 | #if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) |
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226 | |||
227 | typedef int FT_Fast; |
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228 | typedef unsigned int FT_UFast; |
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229 | |||
230 | #elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) |
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231 | |||
232 | typedef long FT_Fast; |
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233 | typedef unsigned long FT_UFast; |
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234 | |||
235 | #endif |
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236 | |||
237 | |||
238 | /* determine whether we have a 64-bit int type for platforms without */ |
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239 | /* Autoconf */ |
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240 | #if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) |
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241 | |||
242 | /* FT_LONG64 must be defined if a 64-bit type is available */ |
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243 | #define FT_LONG64 |
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244 | #define FT_INT64 long |
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245 | |||
246 | #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ |
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247 | |||
248 | /* this compiler provides the __int64 type */ |
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249 | #define FT_LONG64 |
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250 | #define FT_INT64 __int64 |
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251 | |||
252 | #elif defined( __BORLANDC__ ) /* Borland C++ */ |
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253 | |||
254 | /* XXXX: We should probably check the value of __BORLANDC__ in order */ |
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255 | /* to test the compiler version. */ |
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256 | |||
257 | /* this compiler provides the __int64 type */ |
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258 | #define FT_LONG64 |
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259 | #define FT_INT64 __int64 |
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260 | |||
261 | #elif defined( __WATCOMC__ ) /* Watcom C++ */ |
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262 | |||
263 | /* Watcom doesn't provide 64-bit data types */ |
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264 | |||
265 | #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ |
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266 | |||
267 | #define FT_LONG64 |
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268 | #define FT_INT64 long long int |
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269 | |||
270 | #elif defined( __GNUC__ ) |
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271 | |||
272 | /* GCC provides the `long long' type */ |
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273 | #define FT_LONG64 |
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274 | #define FT_INT64 long long int |
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275 | |||
276 | #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ |
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277 | |||
278 | |||
279 | /*************************************************************************/ |
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280 | /* */ |
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281 | /* A 64-bit data type will create compilation problems if you compile */ |
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282 | /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ |
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283 | /* is defined. You can however ignore this rule by defining the */ |
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284 | /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ |
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285 | /* */ |
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286 | #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) |
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287 | |||
288 | #ifdef __STDC__ |
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289 | |||
290 | /* undefine the 64-bit macros in strict ANSI compilation mode */ |
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291 | #undef FT_LONG64 |
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292 | #undef FT_INT64 |
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293 | |||
294 | #endif /* __STDC__ */ |
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295 | |||
296 | #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ |
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297 | |||
298 | |||
299 | #define FT_BEGIN_STMNT do { |
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300 | #define FT_END_STMNT } while ( 0 ) |
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301 | #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT |
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302 | |||
303 | |||
304 | #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER |
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305 | /* Provide assembler fragments for performance-critical functions. */ |
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306 | /* These must be defined `static __inline__' with GCC. */ |
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307 | |||
308 | #if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ |
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309 | #define FT_MULFIX_ASSEMBLER FT_MulFix_arm |
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310 | |||
311 | /* documentation is in freetype.h */ |
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312 | |||
313 | static __inline FT_Int32 |
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314 | FT_MulFix_arm( FT_Int32 a, |
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315 | FT_Int32 b ) |
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316 | { |
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317 | register FT_Int32 t, t2; |
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318 | |||
319 | |||
320 | __asm |
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321 | { |
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322 | smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ |
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323 | mov a, t, asr #31 /* a = (hi >> 31) */ |
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324 | add a, a, #0x8000 /* a += 0x8000 */ |
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325 | adds t2, t2, a /* t2 += a */ |
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326 | adc t, t, #0 /* t += carry */ |
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327 | mov a, t2, lsr #16 /* a = t2 >> 16 */ |
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328 | orr a, a, t, lsl #16 /* a |= t << 16 */ |
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329 | } |
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330 | return a; |
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331 | } |
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332 | |||
333 | #endif /* __CC_ARM || __ARMCC__ */ |
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334 | |||
335 | |||
336 | #ifdef __GNUC__ |
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337 | |||
338 | #if defined( __arm__ ) && !defined( __thumb__ ) && \ |
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339 | !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) |
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340 | #define FT_MULFIX_ASSEMBLER FT_MulFix_arm |
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341 | |||
342 | /* documentation is in freetype.h */ |
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343 | |||
344 | static __inline__ FT_Int32 |
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345 | FT_MulFix_arm( FT_Int32 a, |
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346 | FT_Int32 b ) |
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347 | { |
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348 | register FT_Int32 t, t2; |
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349 | |||
350 | |||
351 | asm __volatile__ ( |
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352 | "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ |
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353 | "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ |
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354 | "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ |
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355 | "adds %1, %1, %0\n\t" /* %1 += %0 */ |
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356 | "adc %2, %2, #0\n\t" /* %2 += carry */ |
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357 | "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ |
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358 | "orr %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ |
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359 | : "=r"(a), "=&r"(t2), "=&r"(t) |
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360 | : "r"(a), "r"(b) ); |
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361 | return a; |
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362 | } |
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363 | |||
364 | #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ |
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365 | |||
366 | #if defined( __i386__ ) |
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367 | #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 |
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368 | |||
369 | /* documentation is in freetype.h */ |
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370 | |||
371 | static __inline__ FT_Int32 |
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372 | FT_MulFix_i386( FT_Int32 a, |
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373 | FT_Int32 b ) |
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374 | { |
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375 | register FT_Int32 result; |
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376 | |||
377 | |||
378 | __asm__ __volatile__ ( |
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379 | "imul %%edx\n" |
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380 | "movl %%edx, %%ecx\n" |
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381 | "sarl $31, %%ecx\n" |
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382 | "addl $0x8000, %%ecx\n" |
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383 | "addl %%ecx, %%eax\n" |
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384 | "adcl $0, %%edx\n" |
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385 | "shrl $16, %%eax\n" |
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386 | "shll $16, %%edx\n" |
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387 | "addl %%edx, %%eax\n" |
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388 | : "=a"(result), "=d"(b) |
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389 | : "a"(a), "d"(b) |
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390 | : "%ecx", "cc" ); |
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391 | return result; |
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392 | } |
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393 | |||
394 | #endif /* i386 */ |
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395 | |||
396 | #endif /* __GNUC__ */ |
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397 | |||
398 | #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ |
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399 | |||
400 | |||
401 | #ifdef FT_CONFIG_OPTION_INLINE_MULFIX |
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402 | #ifdef FT_MULFIX_ASSEMBLER |
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403 | #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER |
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404 | #endif |
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405 | #endif |
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406 | |||
407 | |||
408 | #ifdef FT_MAKE_OPTION_SINGLE_OBJECT |
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409 | |||
410 | #define FT_LOCAL( x ) static x |
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411 | #define FT_LOCAL_DEF( x ) static x |
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412 | |||
413 | #else |
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414 | |||
415 | #ifdef __cplusplus |
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416 | #define FT_LOCAL( x ) extern "C" x |
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417 | #define FT_LOCAL_DEF( x ) extern "C" x |
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418 | #else |
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419 | #define FT_LOCAL( x ) extern x |
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420 | #define FT_LOCAL_DEF( x ) x |
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421 | #endif |
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422 | |||
423 | #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ |
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424 | |||
425 | |||
426 | #ifndef FT_BASE |
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427 | |||
428 | #ifdef __cplusplus |
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429 | #define FT_BASE( x ) extern "C" x |
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430 | #else |
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431 | #define FT_BASE( x ) extern x |
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432 | #endif |
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433 | |||
434 | #endif /* !FT_BASE */ |
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435 | |||
436 | |||
437 | #ifndef FT_BASE_DEF |
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438 | |||
439 | #ifdef __cplusplus |
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440 | #define FT_BASE_DEF( x ) x |
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441 | #else |
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442 | #define FT_BASE_DEF( x ) x |
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443 | #endif |
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444 | |||
445 | #endif /* !FT_BASE_DEF */ |
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446 | |||
447 | |||
448 | #ifndef FT_EXPORT |
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449 | |||
450 | #ifdef __cplusplus |
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451 | #define FT_EXPORT( x ) extern "C" x |
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452 | #else |
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453 | #define FT_EXPORT( x ) extern x |
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454 | #endif |
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455 | |||
456 | #endif /* !FT_EXPORT */ |
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457 | |||
458 | |||
459 | #ifndef FT_EXPORT_DEF |
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460 | |||
461 | #ifdef __cplusplus |
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462 | #define FT_EXPORT_DEF( x ) extern "C" x |
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463 | #else |
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464 | #define FT_EXPORT_DEF( x ) extern x |
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465 | #endif |
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466 | |||
467 | #endif /* !FT_EXPORT_DEF */ |
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468 | |||
469 | |||
470 | #ifndef FT_EXPORT_VAR |
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471 | |||
472 | #ifdef __cplusplus |
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473 | #define FT_EXPORT_VAR( x ) extern "C" x |
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474 | #else |
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475 | #define FT_EXPORT_VAR( x ) extern x |
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476 | #endif |
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477 | |||
478 | #endif /* !FT_EXPORT_VAR */ |
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479 | |||
480 | /* The following macros are needed to compile the library with a */ |
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481 | /* C++ compiler and with 16bit compilers. */ |
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482 | /* */ |
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483 | |||
484 | /* This is special. Within C++, you must specify `extern "C"' for */ |
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485 | /* functions which are used via function pointers, and you also */ |
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486 | /* must do that for structures which contain function pointers to */ |
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487 | /* assure C linkage -- it's not possible to have (local) anonymous */ |
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488 | /* functions which are accessed by (global) function pointers. */ |
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489 | /* */ |
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490 | /* */ |
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491 | /* FT_CALLBACK_DEF is used to _define_ a callback function. */ |
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492 | /* */ |
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493 | /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ |
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494 | /* contains pointers to callback functions. */ |
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495 | /* */ |
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496 | /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ |
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497 | /* that contains pointers to callback functions. */ |
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498 | /* */ |
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499 | /* */ |
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500 | /* Some 16bit compilers have to redefine these macros to insert */ |
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501 | /* the infamous `_cdecl' or `__fastcall' declarations. */ |
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502 | /* */ |
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503 | #ifndef FT_CALLBACK_DEF |
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504 | #ifdef __cplusplus |
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505 | #define FT_CALLBACK_DEF( x ) extern "C" x |
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506 | #else |
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507 | #define FT_CALLBACK_DEF( x ) static x |
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508 | #endif |
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509 | #endif /* FT_CALLBACK_DEF */ |
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510 | |||
511 | #ifndef FT_CALLBACK_TABLE |
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512 | #ifdef __cplusplus |
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513 | #define FT_CALLBACK_TABLE extern "C" |
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514 | #define FT_CALLBACK_TABLE_DEF extern "C" |
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515 | #else |
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516 | #define FT_CALLBACK_TABLE extern |
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517 | #define FT_CALLBACK_TABLE_DEF /* nothing */ |
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518 | #endif |
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519 | #endif /* FT_CALLBACK_TABLE */ |
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520 | |||
521 | |||
522 | FT_END_HEADER |
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523 | |||
524 | |||
525 | #endif /* __FTCONFIG_H__ */ |
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526 | |||
527 | |||
528 | /* END */><>><>=> |