1 /***************************************************************************/ |
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2 /* */ |
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3 /* afpic.c */ |
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4 /* */ |
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5 /* The FreeType position independent code services for autofit module. */ |
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6 /* */ |
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7 /* Copyright 2009-2018 by */ |
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8 /* Oran Agra and Mickey Gabel. */ |
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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 |
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18 |
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19 #include <ft2build.h> |
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20 #include FT_FREETYPE_H |
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21 #include FT_INTERNAL_OBJECTS_H |
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22 #include "afpic.h" |
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23 #include "afglobal.h" |
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24 #include "aferrors.h" |
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25 |
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26 |
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27 #ifdef FT_CONFIG_OPTION_PIC |
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28 |
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29 /* forward declaration of PIC init functions from afmodule.c */ |
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30 FT_Error |
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31 FT_Create_Class_af_services( FT_Library library, |
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32 FT_ServiceDescRec** output_class ); |
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33 |
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34 void |
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35 FT_Destroy_Class_af_services( FT_Library library, |
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36 FT_ServiceDescRec* clazz ); |
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37 |
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38 void |
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39 FT_Init_Class_af_service_properties( FT_Service_PropertiesRec* clazz ); |
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40 |
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41 void FT_Init_Class_af_autofitter_interface( |
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42 FT_Library library, |
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43 FT_AutoHinter_InterfaceRec* clazz ); |
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44 |
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45 |
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46 /* forward declaration of PIC init functions from writing system classes */ |
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47 #undef WRITING_SYSTEM |
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48 #define WRITING_SYSTEM( ws, WS ) /* empty */ |
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49 |
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50 #include "afwrtsys.h" |
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51 |
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52 |
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53 void |
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54 autofit_module_class_pic_free( FT_Library library ) |
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55 { |
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56 FT_PIC_Container* pic_container = &library->pic_container; |
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57 FT_Memory memory = library->memory; |
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58 |
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59 |
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60 if ( pic_container->autofit ) |
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61 { |
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62 AFModulePIC* container = (AFModulePIC*)pic_container->autofit; |
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63 |
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64 |
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65 if ( container->af_services ) |
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66 FT_Destroy_Class_af_services( library, |
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67 container->af_services ); |
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68 container->af_services = NULL; |
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69 |
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70 FT_FREE( container ); |
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71 pic_container->autofit = NULL; |
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72 } |
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73 } |
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74 |
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75 |
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76 FT_Error |
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77 autofit_module_class_pic_init( FT_Library library ) |
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78 { |
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79 FT_PIC_Container* pic_container = &library->pic_container; |
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80 FT_UInt ss; |
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81 FT_Error error = FT_Err_Ok; |
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82 AFModulePIC* container = NULL; |
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83 FT_Memory memory = library->memory; |
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84 |
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85 |
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86 /* allocate pointer, clear and set global container pointer */ |
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87 if ( FT_ALLOC ( container, sizeof ( *container ) ) ) |
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88 return error; |
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89 FT_MEM_SET( container, 0, sizeof ( *container ) ); |
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90 pic_container->autofit = container; |
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91 |
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92 /* initialize pointer table - */ |
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93 /* this is how the module usually expects this data */ |
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94 error = FT_Create_Class_af_services( library, |
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95 &container->af_services ); |
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96 if ( error ) |
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97 goto Exit; |
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98 |
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99 FT_Init_Class_af_service_properties( &container->af_service_properties ); |
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100 |
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101 for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX; ss++ ) |
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102 container->af_writing_system_classes[ss] = |
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103 &container->af_writing_system_classes_rec[ss]; |
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104 container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL; |
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105 |
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106 for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ ) |
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107 container->af_script_classes[ss] = |
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108 &container->af_script_classes_rec[ss]; |
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109 container->af_script_classes[AF_SCRIPT_MAX] = NULL; |
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110 |
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111 for ( ss = 0; ss < AF_STYLE_MAX; ss++ ) |
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112 container->af_style_classes[ss] = |
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113 &container->af_style_classes_rec[ss]; |
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114 container->af_style_classes[AF_STYLE_MAX] = NULL; |
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115 |
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116 #undef WRITING_SYSTEM |
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117 #define WRITING_SYSTEM( ws, WS ) \ |
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118 FT_Init_Class_af_ ## ws ## _writing_system_class( \ |
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119 &container->af_writing_system_classes_rec[ss++] ); |
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120 |
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121 ss = 0; |
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122 #include "afwrtsys.h" |
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123 |
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124 #undef SCRIPT |
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125 #define SCRIPT( s, S, d, h, H, sss ) \ |
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126 FT_Init_Class_af_ ## s ## _script_class( \ |
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127 &container->af_script_classes_rec[ss++] ); |
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128 |
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129 ss = 0; |
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130 #include "afscript.h" |
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131 |
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132 #undef STYLE |
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133 #define STYLE( s, S, d, ws, sc, bss, c ) \ |
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134 FT_Init_Class_af_ ## s ## _style_class( \ |
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135 &container->af_style_classes_rec[ss++] ); |
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136 |
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137 ss = 0; |
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138 #include "afstyles.h" |
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139 |
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140 FT_Init_Class_af_autofitter_interface( |
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141 library, &container->af_autofitter_interface ); |
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142 |
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143 Exit: |
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144 if ( error ) |
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145 autofit_module_class_pic_free( library ); |
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146 return error; |
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147 } |
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148 |
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149 #endif /* FT_CONFIG_OPTION_PIC */ |
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150 |
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151 |
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152 /* END */ |
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