1 /***************************************************************************/ |
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2 /* */ |
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3 /* ftmm.c */ |
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4 /* */ |
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5 /* Multiple Master font support (body). */ |
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6 /* */ |
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7 /* Copyright 1996-2001, 2003, 2004, 2009 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 |
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18 |
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19 #include <ft2build.h> |
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20 #include FT_MULTIPLE_MASTERS_H |
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21 #include FT_INTERNAL_OBJECTS_H |
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22 #include FT_SERVICE_MULTIPLE_MASTERS_H |
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23 |
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24 |
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25 /*************************************************************************/ |
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26 /* */ |
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27 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ |
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28 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ |
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29 /* messages during execution. */ |
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30 /* */ |
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31 #undef FT_COMPONENT |
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32 #define FT_COMPONENT trace_mm |
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33 |
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34 |
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35 static FT_Error |
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36 ft_face_get_mm_service( FT_Face face, |
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37 FT_Service_MultiMasters *aservice ) |
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38 { |
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39 FT_Error error; |
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40 |
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41 |
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42 *aservice = NULL; |
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43 |
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44 if ( !face ) |
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45 return FT_Err_Invalid_Face_Handle; |
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46 |
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47 error = FT_Err_Invalid_Argument; |
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48 |
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49 if ( FT_HAS_MULTIPLE_MASTERS( face ) ) |
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50 { |
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51 FT_FACE_LOOKUP_SERVICE( face, |
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52 *aservice, |
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53 MULTI_MASTERS ); |
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54 |
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55 if ( *aservice ) |
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56 error = FT_Err_Ok; |
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57 } |
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58 |
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59 return error; |
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60 } |
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61 |
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62 |
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63 /* documentation is in ftmm.h */ |
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64 |
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65 FT_EXPORT_DEF( FT_Error ) |
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66 FT_Get_Multi_Master( FT_Face face, |
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67 FT_Multi_Master *amaster ) |
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68 { |
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69 FT_Error error; |
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70 FT_Service_MultiMasters service; |
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71 |
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72 |
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73 error = ft_face_get_mm_service( face, &service ); |
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74 if ( !error ) |
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75 { |
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76 error = FT_Err_Invalid_Argument; |
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77 if ( service->get_mm ) |
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78 error = service->get_mm( face, amaster ); |
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79 } |
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80 |
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81 return error; |
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82 } |
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83 |
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84 |
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85 /* documentation is in ftmm.h */ |
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86 |
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87 FT_EXPORT_DEF( FT_Error ) |
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88 FT_Get_MM_Var( FT_Face face, |
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89 FT_MM_Var* *amaster ) |
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90 { |
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91 FT_Error error; |
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92 FT_Service_MultiMasters service; |
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93 |
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94 |
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95 error = ft_face_get_mm_service( face, &service ); |
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96 if ( !error ) |
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97 { |
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98 error = FT_Err_Invalid_Argument; |
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99 if ( service->get_mm_var ) |
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100 error = service->get_mm_var( face, amaster ); |
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101 } |
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102 |
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103 return error; |
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104 } |
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105 |
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106 |
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107 /* documentation is in ftmm.h */ |
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108 |
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109 FT_EXPORT_DEF( FT_Error ) |
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110 FT_Set_MM_Design_Coordinates( FT_Face face, |
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111 FT_UInt num_coords, |
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112 FT_Long* coords ) |
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113 { |
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114 FT_Error error; |
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115 FT_Service_MultiMasters service; |
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116 |
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117 |
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118 error = ft_face_get_mm_service( face, &service ); |
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119 if ( !error ) |
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120 { |
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121 error = FT_Err_Invalid_Argument; |
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122 if ( service->set_mm_design ) |
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123 error = service->set_mm_design( face, num_coords, coords ); |
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124 } |
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125 |
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126 return error; |
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127 } |
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128 |
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129 |
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130 /* documentation is in ftmm.h */ |
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131 |
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132 FT_EXPORT_DEF( FT_Error ) |
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133 FT_Set_Var_Design_Coordinates( FT_Face face, |
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134 FT_UInt num_coords, |
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135 FT_Fixed* coords ) |
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136 { |
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137 FT_Error error; |
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138 FT_Service_MultiMasters service; |
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139 |
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140 |
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141 error = ft_face_get_mm_service( face, &service ); |
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142 if ( !error ) |
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143 { |
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144 error = FT_Err_Invalid_Argument; |
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145 if ( service->set_var_design ) |
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146 error = service->set_var_design( face, num_coords, coords ); |
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147 } |
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148 |
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149 return error; |
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150 } |
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151 |
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152 |
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153 /* documentation is in ftmm.h */ |
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154 |
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155 FT_EXPORT_DEF( FT_Error ) |
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156 FT_Set_MM_Blend_Coordinates( FT_Face face, |
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157 FT_UInt num_coords, |
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158 FT_Fixed* coords ) |
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159 { |
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160 FT_Error error; |
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161 FT_Service_MultiMasters service; |
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162 |
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163 |
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164 error = ft_face_get_mm_service( face, &service ); |
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165 if ( !error ) |
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166 { |
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167 error = FT_Err_Invalid_Argument; |
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168 if ( service->set_mm_blend ) |
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169 error = service->set_mm_blend( face, num_coords, coords ); |
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170 } |
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171 |
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172 return error; |
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173 } |
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174 |
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175 |
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176 /* documentation is in ftmm.h */ |
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177 |
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178 /* This is exactly the same as the previous function. It exists for */ |
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179 /* orthogonality. */ |
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180 |
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181 FT_EXPORT_DEF( FT_Error ) |
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182 FT_Set_Var_Blend_Coordinates( FT_Face face, |
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183 FT_UInt num_coords, |
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184 FT_Fixed* coords ) |
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185 { |
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186 FT_Error error; |
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187 FT_Service_MultiMasters service; |
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188 |
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189 |
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190 error = ft_face_get_mm_service( face, &service ); |
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191 if ( !error ) |
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192 { |
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193 error = FT_Err_Invalid_Argument; |
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194 if ( service->set_mm_blend ) |
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195 error = service->set_mm_blend( face, num_coords, coords ); |
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196 } |
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197 |
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198 return error; |
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199 } |
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200 |
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201 |
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202 /* END */ |
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