1 /***************************************************************************/
2 /* */
3 /* ftpsprop.c */
4 /* */
5 /* Get and set properties of PostScript drivers (body). */
6 /* See `ftdriver.h' for available properties. */
7 /* */
8 /* Copyright 2017-2018 by */
9 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
10 /* */
11 /* This file is part of the FreeType project, and may only be used, */
12 /* modified, and distributed under the terms of the FreeType project */
13 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
14 /* this file you indicate that you have read the license and */
15 /* understand and accept it fully. */
16 /* */
17 /***************************************************************************/
18
19
20 #include <ft2build.h>
21 #include FT_DRIVER_H
22 #include FT_INTERNAL_DEBUG_H
23 #include FT_INTERNAL_POSTSCRIPT_AUX_H
24 #include FT_INTERNAL_OBJECTS_H
25 #include FT_INTERNAL_POSTSCRIPT_PROPS_H
26
27
28 /*************************************************************************/
29 /* */
30 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
31 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
32 /* messages during execution. */
33 /* */
34 #undef FT_COMPONENT
35 #define FT_COMPONENT trace_psprops
36
37
38 FT_BASE_CALLBACK_DEF( FT_Error )
39 ps_property_set( FT_Module module, /* PS_Driver */
40 const char* property_name,
41 const void* value,
42 FT_Bool value_is_string )
43 {
44 FT_Error error = FT_Err_Ok;
45 PS_Driver driver = (PS_Driver)module;
46
47 #ifndef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
48 FT_UNUSED( value_is_string );
49 #endif
50
51
52 if ( !ft_strcmp( property_name, "darkening-parameters" ) )
53 {
54 FT_Int* darken_params;
55 FT_Int x1, y1, x2, y2, x3, y3, x4, y4;
56
57 #ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
58 FT_Int dp[8];
59
60
61 if ( value_is_string )
62 {
63 const char* s = (const char*)value;
64 char* ep;
65 int i;
66
67
68 /* eight comma-separated numbers */
69 for ( i = 0; i < 7; i++ )
70 {
71 dp[i] = (FT_Int)ft_strtol( s, &ep, 10 );
72 if ( *ep != ',' || s == ep )
73 return FT_THROW( Invalid_Argument );
74
75 s = ep + 1;
76 }
77
78 dp[7] = (FT_Int)ft_strtol( s, &ep, 10 );
79 if ( !( *ep == '\0' || *ep == ' ' ) || s == ep )
80 return FT_THROW( Invalid_Argument );
81
82 darken_params = dp;
83 }
84 else
85 #endif
86 darken_params = (FT_Int*)value;
87
88 x1 = darken_params[0];
89 y1 = darken_params[1];
90 x2 = darken_params[2];
91 y2 = darken_params[3];
92 x3 = darken_params[4];
93 y3 = darken_params[5];
94 x4 = darken_params[6];
95 y4 = darken_params[7];
96
97 if ( x1 < 0 || x2 < 0 || x3 < 0 || x4 < 0 ||
98 y1 < 0 || y2 < 0 || y3 < 0 || y4 < 0 ||
99 x1 > x2 || x2 > x3 || x3 > x4 ||
100 y1 > 500 || y2 > 500 || y3 > 500 || y4 > 500 )
101 return FT_THROW( Invalid_Argument );
102
103 driver->darken_params[0] = x1;
104 driver->darken_params[1] = y1;
105 driver->darken_params[2] = x2;
106 driver->darken_params[3] = y2;
107 driver->darken_params[4] = x3;
108 driver->darken_params[5] = y3;
109 driver->darken_params[6] = x4;
110 driver->darken_params[7] = y4;
111
112 return error;
113 }
114
115 else if ( !ft_strcmp( property_name, "hinting-engine" ) )
116 {
117 #if defined( CFF_CONFIG_OPTION_OLD_ENGINE ) || \
118 defined( T1_CONFIG_OPTION_OLD_ENGINE )
119 const char* module_name = module->clazz->module_name;
120 #endif
121
122
123 #ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
124 if ( value_is_string )
125 {
126 const char* s = (const char*)value;
127
128
129 if ( !ft_strcmp( s, "adobe" ) )
130 driver->hinting_engine = FT_HINTING_ADOBE;
131
132 #ifdef CFF_CONFIG_OPTION_OLD_ENGINE
133 else if ( !ft_strcmp( module_name, "cff" ) &&
134 !ft_strcmp( s, "freetype" ) )
135 driver->hinting_engine = FT_HINTING_FREETYPE;
136 #endif
137
138 #ifdef T1_CONFIG_OPTION_OLD_ENGINE
139 else if ( ( !ft_strcmp( module_name, "type1" ) ||
140 !ft_strcmp( module_name, "t1cid" ) ) &&
141 !ft_strcmp( s, "freetype" ) )
142 driver->hinting_engine = FT_HINTING_FREETYPE;
143 #endif
144
145 else
146 return FT_THROW( Invalid_Argument );
147 }
148 else
149 #endif /* FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES */
150 {
151 FT_UInt* hinting_engine = (FT_UInt*)value;
152
153
154 if ( *hinting_engine == FT_HINTING_ADOBE
155 #ifdef CFF_CONFIG_OPTION_OLD_ENGINE
156 || ( *hinting_engine == FT_HINTING_FREETYPE &&
157 !ft_strcmp( module_name, "cff" ) )
158 #endif
159 #ifdef T1_CONFIG_OPTION_OLD_ENGINE
160 || ( *hinting_engine == FT_HINTING_FREETYPE &&
161 ( !ft_strcmp( module_name, "type1" ) ||
162 !ft_strcmp( module_name, "t1cid" ) ) )
163 #endif
164 )
165 driver->hinting_engine = *hinting_engine;
166 else
167 error = FT_ERR( Unimplemented_Feature );
168
169 return error;
170 }
171 }
172
173 else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
174 {
175 #ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
176 if ( value_is_string )
177 {
178 const char* s = (const char*)value;
179 long nsd = ft_strtol( s, NULL, 10 );
180
181
182 if ( !nsd )
183 driver->no_stem_darkening = FALSE;
184 else
185 driver->no_stem_darkening = TRUE;
186 }
187 else
188 #endif
189 {
190 FT_Bool* no_stem_darkening = (FT_Bool*)value;
191
192
193 driver->no_stem_darkening = *no_stem_darkening;
194 }
195
196 return error;
197 }
198
199 else if ( !ft_strcmp( property_name, "random-seed" ) )
200 {
201 FT_Int32 random_seed;
202
203
204 #ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
205 if ( value_is_string )
206 {
207 const char* s = (const char*)value;
208
209
210 random_seed = (FT_Int32)ft_strtol( s, NULL, 10 );
211 }
212 else
213 #endif
214 random_seed = *(FT_Int32*)value;
215
216 if ( random_seed < 0 )
217 random_seed = 0;
218
219 driver->random_seed = random_seed;
220
221 return error;
222 }
223
224 FT_TRACE0(( "ps_property_set: missing property `%s'\n",
225 property_name ));
226 return FT_THROW( Missing_Property );
227 }
228
229
230 FT_BASE_CALLBACK_DEF( FT_Error )
231 ps_property_get( FT_Module module, /* PS_Driver */
232 const char* property_name,
233 void* value )
234 {
235 FT_Error error = FT_Err_Ok;
236 PS_Driver driver = (PS_Driver)module;
237
238
239 if ( !ft_strcmp( property_name, "darkening-parameters" ) )
240 {
241 FT_Int* darken_params = driver->darken_params;
242 FT_Int* val = (FT_Int*)value;
243
244
245 val[0] = darken_params[0];
246 val[1] = darken_params[1];
247 val[2] = darken_params[2];
248 val[3] = darken_params[3];
249 val[4] = darken_params[4];
250 val[5] = darken_params[5];
251 val[6] = darken_params[6];
252 val[7] = darken_params[7];
253
254 return error;
255 }
256
257 else if ( !ft_strcmp( property_name, "hinting-engine" ) )
258 {
259 FT_UInt hinting_engine = driver->hinting_engine;
260 FT_UInt* val = (FT_UInt*)value;
261
262
263 *val = hinting_engine;
264
265 return error;
266 }
267
268 else if ( !ft_strcmp( property_name, "no-stem-darkening" ) )
269 {
270 FT_Bool no_stem_darkening = driver->no_stem_darkening;
271 FT_Bool* val = (FT_Bool*)value;
272
273
274 *val = no_stem_darkening;
275
276 return error;
277 }
278
279 FT_TRACE0(( "ps_property_get: missing property `%s'\n",
280 property_name ));
281 return FT_THROW( Missing_Property );
282 }
283
284
285 /* END */