1 /***************************************************************************/
5 /* Experimental Type 1 objects manager (body). */
7 /* Copyright 1996-2000 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
10 /* This file is part of the FreeType project, and may only be used, */
11 /* modified, and distributed under the terms of the FreeType project */
12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
13 /* this file you indicate that you have read the license and */
14 /* understand and accept it fully. */
16 /***************************************************************************/
19 #include <freetype/internal/ftdebug.h>
20 #include <freetype/internal/ftstream.h>
23 #ifdef FT_FLAT_COMPILE
31 #include <freetype/src/type1z/z1gload.h>
32 #include <freetype/src/type1z/z1load.h>
33 #include <freetype/src/type1z/z1afm.h>
38 #include <freetype/internal/psnames.h>
41 /*************************************************************************/
43 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
44 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
45 /* messages during execution. */
48 #define FT_COMPONENT trace_z1objs
51 /*************************************************************************/
55 /*************************************************************************/
58 /*************************************************************************/
64 /* The face object destructor. */
67 /* face :: A typeless pointer to the face object to destroy. */
70 void Z1_Done_Face( T1_Face face )
73 T1_Font* type1 = &face->type1;
78 memory = face->root.memory;
80 #ifndef Z1_CONFIG_OPTION_NO_MM_SUPPORT
81 /* release multiple masters information */
82 Z1_Done_Blend( face );
86 /* release font info strings */
88 T1_FontInfo* info = &type1->font_info;
91 FREE( info->version );
93 FREE( info->full_name );
94 FREE( info->family_name );
98 /* release top dictionary */
99 FREE( type1->charstrings_len );
100 FREE( type1->charstrings );
101 FREE( type1->glyph_names );
103 FREE( type1->subrs );
104 FREE( type1->subrs_len );
106 FREE( type1->subrs_block );
107 FREE( type1->charstrings_block );
108 FREE( type1->glyph_names_block );
110 FREE( type1->encoding.char_index );
111 FREE( type1->font_name );
113 #ifndef Z1_CONFIG_OPTION_NO_AFM
114 /* release afm data if present */
115 if ( face->afm_data )
116 Z1_Done_AFM( memory, (Z1_AFM*)face->afm_data );
119 /* release unicode map, if any */
120 FREE( face->unicode_map.maps );
121 face->unicode_map.num_maps = 0;
123 face->root.family_name = 0;
124 face->root.style_name = 0;
129 /*************************************************************************/
135 /* The face object constructor. */
138 /* stream :: input stream where to load font data. */
140 /* face_index :: The index of the font face in the resource. */
142 /* num_params :: Number of additional generic parameters. Ignored. */
144 /* params :: Additional generic parameters. Ignored. */
147 /* face :: The face record to build. */
150 /* FreeType error code. 0 means success. */
153 FT_Error Z1_Init_Face( FT_Stream stream,
157 FT_Parameter* params )
160 PSNames_Interface* psnames;
162 FT_UNUSED( num_params );
164 FT_UNUSED( face_index );
168 face->root.num_faces = 1;
170 psnames = (PSNames_Interface*)face->psnames;
173 psnames = (PSNames_Interface*)
174 FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" );
176 face->psnames = psnames;
179 /* open the tokenizer, this will also check the font format */
180 error = Z1_Open_Face( face );
184 /* if we just wanted to check the format, leave successfully now */
185 if ( face_index < 0 )
188 /* check the face index */
189 if ( face_index != 0 )
191 FT_ERROR(( "Z1_Init_Face: invalid face index\n" ));
192 error = T1_Err_Invalid_Argument;
196 /* Now, load the font program into the face object */
198 /* Init the face object fields */
199 /* Now set up root face fields */
201 FT_Face root = (FT_Face)&face->root;
204 root->num_glyphs = face->type1.num_glyphs;
205 root->num_charmaps = 1;
207 root->face_index = face_index;
208 root->face_flags = FT_FACE_FLAG_SCALABLE;
210 root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
212 root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
214 if ( face->type1.font_info.is_fixed_pitch )
215 root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
218 root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
220 /* XXX: TODO -- add kerning with .afm support */
222 /* get style name -- be careful, some broken fonts only */
223 /* have a `/FontName' dictionary entry! */
224 root->family_name = face->type1.font_info.family_name;
225 if ( root->family_name )
227 char* full = face->type1.font_info.full_name;
228 char* family = root->family_name;
231 while ( *family && *full == *family )
237 root->style_name = ( *full == ' ' ? full + 1
238 : (char *)"Regular" );
242 /* do we have a `/FontName'? */
243 if ( face->type1.font_name )
245 root->family_name = face->type1.font_name;
246 root->style_name = "Regular";
250 /* no embedded bitmap support */
251 root->num_fixed_sizes = 0;
252 root->available_sizes = 0;
254 root->bbox = face->type1.font_bbox;
255 root->units_per_EM = 1000;
256 root->ascender = (FT_Short)face->type1.font_bbox.yMax;
257 root->descender = -(FT_Short)face->type1.font_bbox.yMin;
258 root->height = ( ( root->ascender + root->descender ) * 12 ) / 10;
260 /* now compute the maximum advance width */
262 root->max_advance_width = face->type1.private_dict.standard_width[0];
264 /* compute max advance width for proportional fonts */
265 if ( !face->type1.font_info.is_fixed_pitch )
270 error = Z1_Compute_Max_Advance( face, &max_advance );
272 /* in case of error, keep the standard width */
274 root->max_advance_width = max_advance;
276 error = 0; /* clear error */
279 root->max_advance_height = root->height;
281 root->underline_position = face->type1.font_info.underline_position;
282 root->underline_thickness = face->type1.font_info.underline_thickness;
284 root->max_points = 0;
285 root->max_contours = 0;
288 /* charmap support -- synthetize unicode charmap if possible */
290 FT_Face root = &face->root;
291 FT_CharMap charmap = face->charmaprecs;
294 /* synthesize a Unicode charmap if there is support in the `PSNames' */
298 PSNames_Interface* psnames = (PSNames_Interface*)face->psnames;
301 if ( psnames->unicode_value )
303 error = psnames->build_unicodes(
305 face->type1.num_glyphs,
306 (const char**)face->type1.glyph_names,
307 &face->unicode_map );
310 root->charmap = charmap;
311 charmap->face = (FT_Face)face;
312 charmap->encoding = ft_encoding_unicode;
313 charmap->platform_id = 3;
314 charmap->encoding_id = 1;
318 /* simply clear the error in case of failure (which really) */
319 /* means that out of memory or no unicode glyph names */
324 /* now, support either the standard, expert, or custom encoding */
325 charmap->face = (FT_Face)face;
326 charmap->platform_id = 7; /* a new platform id for Adobe fonts? */
328 switch ( face->type1.encoding_type )
330 case t1_encoding_standard:
331 charmap->encoding = ft_encoding_adobe_standard;
332 charmap->encoding_id = 0;
335 case t1_encoding_expert:
336 charmap->encoding = ft_encoding_adobe_expert;
337 charmap->encoding_id = 1;
341 charmap->encoding = ft_encoding_adobe_custom;
342 charmap->encoding_id = 2;
346 root->charmaps = face->charmaps;
347 root->num_charmaps = charmap - face->charmaprecs + 1;
348 face->charmaps[0] = &face->charmaprecs[0];
349 face->charmaps[1] = &face->charmaprecs[1];
357 /*************************************************************************/
363 /* Initializes a given Type 1 driver object. */
366 /* driver :: A handle to the target driver object. */
369 /* FreeType error code. 0 means success. */
372 FT_Error Z1_Init_Driver( Z1_Driver driver )
380 /*************************************************************************/
386 /* Finalizes a given Type 1 driver. */
389 /* driver :: A handle to the target Type 1 driver. */
392 void Z1_Done_Driver( Z1_Driver driver )