new psnames module
This commit is contained in:
David Turner
parent
a9369f2dc9
commit
5c9a571a5a
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make_module_list: add_psnames_driver
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add_psnames_driver:
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$(OPEN_DRIVER)psnames_driver_interface$(CLOSE_DRIVER)
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$(ECHO_DRIVER)psnames $(ECHO_DRIVER_DESC) Postscript & Unicode Glyph name handling $(ECHO_DRIVER_DONE)
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#include <psdriver.h>
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#include <psnames.h>
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#include <ftobjs.h>
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#include <stdlib.h>
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#ifndef FT_CONFIG_OPTION_NO_POSTSCRIPT_NAMES
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/* see the python script "freetype2/docs/glnames.py" which is used */
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/* to generate the following tables... */
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#include <pstables.h>
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#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
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/* return the Unicode value corresponding to a given glyph. Note that */
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/* we do deal with glyph variants by detecting a non-initial dot */
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/* in the name, as in "A.swash" or "e.final", etc.. */
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/* */
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static
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FT_ULong PS_Unicode_Value( const char* glyph_name )
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{
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FT_Int n;
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char first = glyph_name[0];
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char temp[64];
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/* if the name begins with "uni", then the glyph name may be a */
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/* hard-coded unicode character code.. */
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if ( glyph_name[0] == 'u' &&
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glyph_name[1] == 'n' &&
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glyph_name[2] == 'i' )
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{
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/* determine wether the following characters are hexadecimal */
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FT_Int count;
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FT_ULong value = 0;
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const char* p = glyph_name + 4;
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for ( count = 4;count > 0; count--, p++ )
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{
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char c = *p;
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unsigned char d;
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d = (unsigned char)c-'0';
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if (d >= 10)
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{
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d = (unsigned char)c - 'A';
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if ( d >= 6 )
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d = 16;
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else
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d += 10;
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}
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/* exit if one non-uppercase-hexadecimal character was found */
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if (d >= 16)
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break;
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value = (value << 4) + d;
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if (count == 0)
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return value;
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}
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}
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/* look for a non-initial dot in the glyph name in order to */
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/* sort-out variants like "A.swash", "e.final", etc.. */
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{
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const char* p;
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int len;
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p = glyph_name;
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while ( *p && *p != '.' ) p++;
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len = p-glyph_name;
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if ( *p && len < 64 )
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{
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strncpy( temp, glyph_name, len );
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temp[len] = 0;
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glyph_name = temp;
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}
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}
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/* now, lookup the glyph in the Adobe Glyph List */
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for ( n = 0; n < NUM_ADOBE_GLYPHS; n++ )
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{
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const char* name = t1_standard_glyphs[n];
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if ( first == name[0] && strcmp( glyph_name, name ) == 0 )
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return names_to_unicode[n];
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}
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/* not found, there is probably no Unicode value for this glyph name */
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return 0;
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}
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/* qsort callback to sort the unicode map */
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static
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int compare_uni_maps( const void* a, const void* b )
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{
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PS_UniMap* map1 = (PS_UniMap*)a;
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PS_UniMap* map2 = (PS_UniMap*)b;
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return ( map1->unicode < map2->unicode ? -1 :
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map1->unicode > map2->unicode ? 1 : 0 );
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}
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/* Builds a table that maps Unicode values to glyph indices */
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static
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FT_Error PS_Build_Unicode_Table( FT_Memory memory,
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FT_UInt num_glyphs,
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const char** glyph_names,
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PS_Unicodes *table )
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{
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FT_Error error;
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/* we first allocate the table */
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table->num_maps = 0;
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table->maps = 0;
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if ( !ALLOC_ARRAY( table->maps, num_glyphs, PS_UniMap ) )
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{
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FT_UInt n;
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FT_UInt count;
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PS_UniMap* map;
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FT_ULong uni_char;
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map = table->maps;
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for ( n = 0; n < num_glyphs; n++ )
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{
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const char* gname = glyph_names[n];
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if (gname)
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{
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uni_char = PS_Unicode_Value(gname);
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if (uni_char && uni_char != 0xFFFF)
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{
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map->unicode = uni_char;
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map->glyph_index = n;
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map++;
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}
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}
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}
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/* now, compress the table a bit */
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count = map - table->maps;
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if ( count > 0 && REALLOC( table->maps,
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num_glyphs*sizeof(PS_UniMap),
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count*sizeof(PS_UniMap) ) )
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{
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count = 0;
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}
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if (count == 0)
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{
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FREE( table->maps );
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if (!error)
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error = FT_Err_Invalid_Argument; /* no unicode chars here !! */
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}
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else
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/* sort the table in increasing order of unicode values */
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qsort( table->maps, count, sizeof(PS_UniMap), compare_uni_maps );
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table->num_maps = count;
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}
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return error;
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}
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static
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FT_UInt PS_Lookup_Unicode( PS_Unicodes* table,
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FT_ULong unicode )
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{
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PS_UniMap *min, *max, *mid;
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/* perform a binary search on the table */
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min = table->maps;
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max = min + table->num_maps - 1;
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while (min <= max)
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{
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mid = min + (max-min)/2;
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if ( mid->unicode == unicode )
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return mid->glyph_index;
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if (min == max)
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break;
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if ( mid->unicode < unicode ) min = mid+1;
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else max = mid-1;
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}
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return 0xFFFF;
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}
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#endif
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static
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const char* PS_Macintosh_Name( FT_UInt name_index )
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{
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if (name_index >= 258)
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name_index = 0;
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return standard_glyph_names[ mac_standard_names[name_index] ];
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}
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static
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const char* PS_Standard_Strings( FT_UInt sid )
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{
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return (sid < NUM_STD_GLYPHS ? t1_standard_glyphs[sid] : 0);
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}
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static const PSNames_Interface psnames_interface =
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{
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#ifdef FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
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(PS_Unicode_Value_Func) PS_Unicode_Value,
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(PS_Build_Unicodes_Func) PS_Build_Unicode_Table,
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(PS_Lookup_Unicode_Func) PS_Lookup_Unicode,
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#else
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0,
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0,
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0,
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#endif
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(PS_Macintosh_Name_Func) PS_Macintosh_Name,
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(PS_Adobe_Std_Strings_Func) PS_Standard_Strings,
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t1_standard_encoding,
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t1_expert_encoding
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};
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EXPORT_FUNC
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const FT_DriverInterface psnames_driver_interface =
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{
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sizeof(FT_DriverRec),
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0,
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0,
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0,
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"psnames", /* driver name */
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100, /* driver version */
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200, /* driver requires FreeType 2 or above */
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(void*)&psnames_interface
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};
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#else
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EXPORT_FUNC
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const FT_DriverInterface psnames_driver_interface =
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{
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0,
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0,
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0,
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0,
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0,
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100, /* driver version */
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200, /* driver requires FreeType 2 or above */
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0,
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};
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#endif /* !FT_CONFIG_OPTION_NO_POSTSCRIPT_NAMES */
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@ -0,0 +1,31 @@
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/***************************************************************************/
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/* */
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/* psdriver.h */
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/* */
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/* High-level PSNames driver interface (specification). */
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/* */
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/* Copyright 1996-1999 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef PSDRIVER_H
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#define PSDRIVER_H
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#include <freetype.h>
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#include <ftdriver.h>
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EXPORT_DEF
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const FT_DriverInterface psnames_driver_interface;
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#endif /* PSDRIVER_H */
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/* END */
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#include <psdriver.c>
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,91 @@
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#****************************************************************************
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#* *
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#* PSNames driver Makefile *
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#* *
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#* Copyright 1996-2000 by *
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#* David Turner, Robert Wilhelm, and Werner Lemberg. *
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#* *
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#* This file is part of the FreeType project, and may only be used *
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#* modified and distributed under the terms of the FreeType project *
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#* license, LICENSE.TXT. By continuing to use, modify, or distribute *
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#* this file you indicate that you have read the license and *
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#* understand and accept it fully. *
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#* *
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#****************************************************************************
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ifndef PSNAMES_INCLUDE
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PSNAMES_INCLUDED := 1
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include $(SRC_)shared/rules.mk
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# PSNAMES driver directory
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#
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PSNAMES_DIR := $(SRC_)psnames
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PSNAMES_DIR_ := $(PSNAMES_DIR)$(SEP)
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# additional include flags used when compiling the driver
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#
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PSNAMES_INCLUDE := $(SHARED) $(PSNAMES_DIR)
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# compilation flags for the driver
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#
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PSNAMES_CFLAGS := $(PSNAMES_INCLUDE:%=$I%)
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PSNAMES_COMPILE := $(FT_COMPILE) $(PSNAMES_CFLAGS)
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# TrueType driver sources (i.e., C files)
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#
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PSNAMES_DRV_SRC := $(PSNAMES_DIR_)psdriver.c
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# TrueType driver headers
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#
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PSNAMES_DRV_H := $(SHARED_H) \
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$(PSNAMES_DIR_)psdriver.h \
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$(PSNAMES_DIR_)pstables.h
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# driver object(s)
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#
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# PSNAMES_DRV_OBJ_M is used during `debug' builds
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# PSNAMES_DRV_OBJ_S is used during `release' builds
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#
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PSNAMES_DRV_OBJ_M := $(PSNAMES_DRV_SRC:$(PSNAMES_DIR_)%.c=$(OBJ_)%.$O)
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PSNAMES_DRV_OBJ_S := $(OBJ_)psnames.$O
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# driver root source file(s)
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#
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PSNAMES_DRV_SRC_M := $(PSNAMES_DRV_SRC)
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PSNAMES_DRV_SRC_S := $(PSNAMES_DIR_)psdriver.c
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# driver - single object
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#
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# the driver is recompiled if any of the header or source files is changed
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# as well as any of the shared source files found in `shared/sfnt'
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#
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$(PSNAMES_DRV_OBJ_S): $(BASE_H) $(SHARED_H) $(PSNAMES_DRV_H) $(PSNAMES_DRV_SRC) $(PSNAMES_DRV_SRC_S)
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$(PSNAMES_COMPILE) $T$@ $(PSNAMES_DRV_SRC_S)
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# driver - multiple objects
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#
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# All objects are recompiled if any of the header files is changed
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#
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$(OBJ_)tt%.$O: $(PSNAMES_DIR_)tt%.c $(BASE_H) $(SHARED_H) $(PSNAMES_DRV_H)
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$(PSNAMES_COMPILE) $T$@ $<
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$(OBJ_)sf%.$O: $(PSNAMES_DIR_)sf%.c $(BASE_H) $(SHARED_H) $(PSNAMES_DRV_H)
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$(PSNAMES_COMPILE) $T$@ $<
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# update main driver object lists
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#
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DRV_OBJS_S += $(PSNAMES_DRV_OBJ_S)
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DRV_OBJS_M += $(PSNAMES_DRV_OBJ_M)
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endif
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# END
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