--- a/misc/libfreetype/src/bdf/bdflib.c Tue Jul 16 11:14:27 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,2542 +0,0 @@
-/*
- * Copyright 2000 Computing Research Labs, New Mexico State University
- * Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
- * Francesco Zappa Nardelli
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
- * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- /*************************************************************************/
- /* */
- /* This file is based on bdf.c,v 1.22 2000/03/16 20:08:50 */
- /* */
- /* taken from Mark Leisher's xmbdfed package */
- /* */
- /*************************************************************************/
-
-
-#include <ft2build.h>
-
-#include FT_FREETYPE_H
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_STREAM_H
-#include FT_INTERNAL_OBJECTS_H
-
-#include "bdf.h"
-#include "bdferror.h"
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_bdflib
-
-
- /*************************************************************************/
- /* */
- /* Default BDF font options. */
- /* */
- /*************************************************************************/
-
-
- static const bdf_options_t _bdf_opts =
- {
- 1, /* Correct metrics. */
- 1, /* Preserve unencoded glyphs. */
- 0, /* Preserve comments. */
- BDF_PROPORTIONAL /* Default spacing. */
- };
-
-
- /*************************************************************************/
- /* */
- /* Builtin BDF font properties. */
- /* */
- /*************************************************************************/
-
- /* List of most properties that might appear in a font. Doesn't include */
- /* the RAW_* and AXIS_* properties in X11R6 polymorphic fonts. */
-
- static const bdf_property_t _bdf_properties[] =
- {
- { (char *)"ADD_STYLE_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"AVERAGE_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"AVG_CAPITAL_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"CAP_HEIGHT", BDF_INTEGER, 1, { 0 } },
- { (char *)"CHARSET_COLLECTIONS", BDF_ATOM, 1, { 0 } },
- { (char *)"CHARSET_ENCODING", BDF_ATOM, 1, { 0 } },
- { (char *)"CHARSET_REGISTRY", BDF_ATOM, 1, { 0 } },
- { (char *)"COMMENT", BDF_ATOM, 1, { 0 } },
- { (char *)"COPYRIGHT", BDF_ATOM, 1, { 0 } },
- { (char *)"DEFAULT_CHAR", BDF_CARDINAL, 1, { 0 } },
- { (char *)"DESTINATION", BDF_CARDINAL, 1, { 0 } },
- { (char *)"DEVICE_FONT_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"END_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"FACE_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"FAMILY_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"FIGURE_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"FONT", BDF_ATOM, 1, { 0 } },
- { (char *)"FONTNAME_REGISTRY", BDF_ATOM, 1, { 0 } },
- { (char *)"FONT_ASCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"FONT_DESCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"FOUNDRY", BDF_ATOM, 1, { 0 } },
- { (char *)"FULL_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"ITALIC_ANGLE", BDF_INTEGER, 1, { 0 } },
- { (char *)"MAX_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"MIN_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"NORM_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"NOTICE", BDF_ATOM, 1, { 0 } },
- { (char *)"PIXEL_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"POINT_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"QUAD_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_ASCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_AVERAGE_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_AVG_CAPITAL_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_CAP_HEIGHT", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_DESCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_END_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_FIGURE_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_MAX_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_MIN_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_NORM_SPACE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_PIXEL_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_POINT_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_PIXELSIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_POINTSIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_QUAD_WIDTH", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SMALL_CAP_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_STRIKEOUT_ASCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_STRIKEOUT_DESCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SUBSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SUBSCRIPT_X", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SUBSCRIPT_Y", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SUPERSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SUPERSCRIPT_X", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_SUPERSCRIPT_Y", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_UNDERLINE_POSITION", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_UNDERLINE_THICKNESS", BDF_INTEGER, 1, { 0 } },
- { (char *)"RAW_X_HEIGHT", BDF_INTEGER, 1, { 0 } },
- { (char *)"RELATIVE_SETWIDTH", BDF_CARDINAL, 1, { 0 } },
- { (char *)"RELATIVE_WEIGHT", BDF_CARDINAL, 1, { 0 } },
- { (char *)"RESOLUTION", BDF_INTEGER, 1, { 0 } },
- { (char *)"RESOLUTION_X", BDF_CARDINAL, 1, { 0 } },
- { (char *)"RESOLUTION_Y", BDF_CARDINAL, 1, { 0 } },
- { (char *)"SETWIDTH_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"SLANT", BDF_ATOM, 1, { 0 } },
- { (char *)"SMALL_CAP_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"SPACING", BDF_ATOM, 1, { 0 } },
- { (char *)"STRIKEOUT_ASCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"STRIKEOUT_DESCENT", BDF_INTEGER, 1, { 0 } },
- { (char *)"SUBSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"SUBSCRIPT_X", BDF_INTEGER, 1, { 0 } },
- { (char *)"SUBSCRIPT_Y", BDF_INTEGER, 1, { 0 } },
- { (char *)"SUPERSCRIPT_SIZE", BDF_INTEGER, 1, { 0 } },
- { (char *)"SUPERSCRIPT_X", BDF_INTEGER, 1, { 0 } },
- { (char *)"SUPERSCRIPT_Y", BDF_INTEGER, 1, { 0 } },
- { (char *)"UNDERLINE_POSITION", BDF_INTEGER, 1, { 0 } },
- { (char *)"UNDERLINE_THICKNESS", BDF_INTEGER, 1, { 0 } },
- { (char *)"WEIGHT", BDF_CARDINAL, 1, { 0 } },
- { (char *)"WEIGHT_NAME", BDF_ATOM, 1, { 0 } },
- { (char *)"X_HEIGHT", BDF_INTEGER, 1, { 0 } },
- { (char *)"_MULE_BASELINE_OFFSET", BDF_INTEGER, 1, { 0 } },
- { (char *)"_MULE_RELATIVE_COMPOSE", BDF_INTEGER, 1, { 0 } },
- };
-
- static const unsigned long
- _num_bdf_properties = sizeof ( _bdf_properties ) /
- sizeof ( _bdf_properties[0] );
-
-
- /*************************************************************************/
- /* */
- /* Hash table utilities for the properties. */
- /* */
- /*************************************************************************/
-
- /* XXX: Replace this with FreeType's hash functions */
-
-
-#define INITIAL_HT_SIZE 241
-
- typedef void
- (*hash_free_func)( hashnode node );
-
- static hashnode*
- hash_bucket( const char* key,
- hashtable* ht )
- {
- const char* kp = key;
- unsigned long res = 0;
- hashnode* bp = ht->table, *ndp;
-
-
- /* Mocklisp hash function. */
- while ( *kp )
- res = ( res << 5 ) - res + *kp++;
-
- ndp = bp + ( res % ht->size );
- while ( *ndp )
- {
- kp = (*ndp)->key;
- if ( kp[0] == key[0] && ft_strcmp( kp, key ) == 0 )
- break;
- ndp--;
- if ( ndp < bp )
- ndp = bp + ( ht->size - 1 );
- }
-
- return ndp;
- }
-
-
- static FT_Error
- hash_rehash( hashtable* ht,
- FT_Memory memory )
- {
- hashnode* obp = ht->table, *bp, *nbp;
- int i, sz = ht->size;
- FT_Error error = BDF_Err_Ok;
-
-
- ht->size <<= 1;
- ht->limit = ht->size / 3;
-
- if ( FT_NEW_ARRAY( ht->table, ht->size ) )
- goto Exit;
-
- for ( i = 0, bp = obp; i < sz; i++, bp++ )
- {
- if ( *bp )
- {
- nbp = hash_bucket( (*bp)->key, ht );
- *nbp = *bp;
- }
- }
- FT_FREE( obp );
-
- Exit:
- return error;
- }
-
-
- static FT_Error
- hash_init( hashtable* ht,
- FT_Memory memory )
- {
- int sz = INITIAL_HT_SIZE;
- FT_Error error = BDF_Err_Ok;
-
-
- ht->size = sz;
- ht->limit = sz / 3;
- ht->used = 0;
-
- if ( FT_NEW_ARRAY( ht->table, sz ) )
- goto Exit;
-
- Exit:
- return error;
- }
-
-
- static void
- hash_free( hashtable* ht,
- FT_Memory memory )
- {
- if ( ht != 0 )
- {
- int i, sz = ht->size;
- hashnode* bp = ht->table;
-
-
- for ( i = 0; i < sz; i++, bp++ )
- FT_FREE( *bp );
-
- FT_FREE( ht->table );
- }
- }
-
-
- static FT_Error
- hash_insert( char* key,
- size_t data,
- hashtable* ht,
- FT_Memory memory )
- {
- hashnode nn, *bp = hash_bucket( key, ht );
- FT_Error error = BDF_Err_Ok;
-
-
- nn = *bp;
- if ( !nn )
- {
- if ( FT_NEW( nn ) )
- goto Exit;
- *bp = nn;
-
- nn->key = key;
- nn->data = data;
-
- if ( ht->used >= ht->limit )
- {
- error = hash_rehash( ht, memory );
- if ( error )
- goto Exit;
- }
- ht->used++;
- }
- else
- nn->data = data;
-
- Exit:
- return error;
- }
-
-
- static hashnode
- hash_lookup( const char* key,
- hashtable* ht )
- {
- hashnode *np = hash_bucket( key, ht );
-
-
- return *np;
- }
-
-
- /*************************************************************************/
- /* */
- /* Utility types and functions. */
- /* */
- /*************************************************************************/
-
-
- /* Function type for parsing lines of a BDF font. */
-
- typedef FT_Error
- (*_bdf_line_func_t)( char* line,
- unsigned long linelen,
- unsigned long lineno,
- void* call_data,
- void* client_data );
-
-
- /* List structure for splitting lines into fields. */
-
- typedef struct _bdf_list_t_
- {
- char** field;
- unsigned long size;
- unsigned long used;
- FT_Memory memory;
-
- } _bdf_list_t;
-
-
- /* Structure used while loading BDF fonts. */
-
- typedef struct _bdf_parse_t_
- {
- unsigned long flags;
- unsigned long cnt;
- unsigned long row;
-
- short minlb;
- short maxlb;
- short maxrb;
- short maxas;
- short maxds;
-
- short rbearing;
-
- char* glyph_name;
- long glyph_enc;
-
- bdf_font_t* font;
- bdf_options_t* opts;
-
- unsigned long have[2048];
- _bdf_list_t list;
-
- FT_Memory memory;
-
- } _bdf_parse_t;
-
-
-#define setsbit( m, cc ) \
- ( m[(FT_Byte)(cc) >> 3] |= (FT_Byte)( 1 << ( (cc) & 7 ) ) )
-#define sbitset( m, cc ) \
- ( m[(FT_Byte)(cc) >> 3] & ( 1 << ( (cc) & 7 ) ) )
-
-
- static void
- _bdf_list_init( _bdf_list_t* list,
- FT_Memory memory )
- {
- FT_ZERO( list );
- list->memory = memory;
- }
-
-
- static void
- _bdf_list_done( _bdf_list_t* list )
- {
- FT_Memory memory = list->memory;
-
-
- if ( memory )
- {
- FT_FREE( list->field );
- FT_ZERO( list );
- }
- }
-
-
- static FT_Error
- _bdf_list_ensure( _bdf_list_t* list,
- unsigned long num_items ) /* same as _bdf_list_t.used */
- {
- FT_Error error = BDF_Err_Ok;
-
-
- if ( num_items > list->size )
- {
- unsigned long oldsize = list->size; /* same as _bdf_list_t.size */
- unsigned long newsize = oldsize + ( oldsize >> 1 ) + 4;
- unsigned long bigsize = (unsigned long)( FT_INT_MAX / sizeof ( char* ) );
- FT_Memory memory = list->memory;
-
-
- if ( oldsize == bigsize )
- {
- error = BDF_Err_Out_Of_Memory;
- goto Exit;
- }
- else if ( newsize < oldsize || newsize > bigsize )
- newsize = bigsize;
-
- if ( FT_RENEW_ARRAY( list->field, oldsize, newsize ) )
- goto Exit;
-
- list->size = newsize;
- }
-
- Exit:
- return error;
- }
-
-
- static void
- _bdf_list_shift( _bdf_list_t* list,
- unsigned long n )
- {
- unsigned long i, u;
-
-
- if ( list == 0 || list->used == 0 || n == 0 )
- return;
-
- if ( n >= list->used )
- {
- list->used = 0;
- return;
- }
-
- for ( u = n, i = 0; u < list->used; i++, u++ )
- list->field[i] = list->field[u];
- list->used -= n;
- }
-
-
- /* An empty string for empty fields. */
-
- static const char empty[1] = { 0 }; /* XXX eliminate this */
-
-
- static char *
- _bdf_list_join( _bdf_list_t* list,
- int c,
- unsigned long *alen )
- {
- unsigned long i, j;
- char *fp, *dp;
-
-
- *alen = 0;
-
- if ( list == 0 || list->used == 0 )
- return 0;
-
- dp = list->field[0];
- for ( i = j = 0; i < list->used; i++ )
- {
- fp = list->field[i];
- while ( *fp )
- dp[j++] = *fp++;
-
- if ( i + 1 < list->used )
- dp[j++] = (char)c;
- }
- if ( dp != empty )
- dp[j] = 0;
-
- *alen = j;
- return dp;
- }
-
-
- static FT_Error
- _bdf_list_split( _bdf_list_t* list,
- char* separators,
- char* line,
- unsigned long linelen )
- {
- int mult, final_empty;
- char *sp, *ep, *end;
- char seps[32];
- FT_Error error = BDF_Err_Ok;
-
-
- /* Initialize the list. */
- list->used = 0;
-
- /* If the line is empty, then simply return. */
- if ( linelen == 0 || line[0] == 0 )
- goto Exit;
-
- /* In the original code, if the `separators' parameter is NULL or */
- /* empty, the list is split into individual bytes. We don't need */
- /* this, so an error is signaled. */
- if ( separators == 0 || *separators == 0 )
- {
- error = BDF_Err_Invalid_Argument;
- goto Exit;
- }
-
- /* Prepare the separator bitmap. */
- FT_MEM_ZERO( seps, 32 );
-
- /* If the very last character of the separator string is a plus, then */
- /* set the `mult' flag to indicate that multiple separators should be */
- /* collapsed into one. */
- for ( mult = 0, sp = separators; sp && *sp; sp++ )
- {
- if ( *sp == '+' && *( sp + 1 ) == 0 )
- mult = 1;
- else
- setsbit( seps, *sp );
- }
-
- /* Break the line up into fields. */
- for ( final_empty = 0, sp = ep = line, end = sp + linelen;
- sp < end && *sp; )
- {
- /* Collect everything that is not a separator. */
- for ( ; *ep && !sbitset( seps, *ep ); ep++ )
- ;
-
- /* Resize the list if necessary. */
- if ( list->used == list->size )
- {
- error = _bdf_list_ensure( list, list->used + 1 );
- if ( error )
- goto Exit;
- }
-
- /* Assign the field appropriately. */
- list->field[list->used++] = ( ep > sp ) ? sp : (char*)empty;
-
- sp = ep;
-
- if ( mult )
- {
- /* If multiple separators should be collapsed, do it now by */
- /* setting all the separator characters to 0. */
- for ( ; *ep && sbitset( seps, *ep ); ep++ )
- *ep = 0;
- }
- else if ( *ep != 0 )
- /* Don't collapse multiple separators by making them 0, so just */
- /* make the one encountered 0. */
- *ep++ = 0;
-
- final_empty = ( ep > sp && *ep == 0 );
- sp = ep;
- }
-
- /* Finally, NULL-terminate the list. */
- if ( list->used + final_empty >= list->size )
- {
- error = _bdf_list_ensure( list, list->used + final_empty + 1 );
- if ( error )
- goto Exit;
- }
-
- if ( final_empty )
- list->field[list->used++] = (char*)empty;
-
- list->field[list->used] = 0;
-
- Exit:
- return error;
- }
-
-
-#define NO_SKIP 256 /* this value cannot be stored in a 'char' */
-
-
- static FT_Error
- _bdf_readstream( FT_Stream stream,
- _bdf_line_func_t callback,
- void* client_data,
- unsigned long *lno )
- {
- _bdf_line_func_t cb;
- unsigned long lineno, buf_size;
- int refill, hold, to_skip;
- ptrdiff_t bytes, start, end, cursor, avail;
- char* buf = 0;
- FT_Memory memory = stream->memory;
- FT_Error error = BDF_Err_Ok;
-
-
- if ( callback == 0 )
- {
- error = BDF_Err_Invalid_Argument;
- goto Exit;
- }
-
- /* initial size and allocation of the input buffer */
- buf_size = 1024;
-
- if ( FT_NEW_ARRAY( buf, buf_size ) )
- goto Exit;
-
- cb = callback;
- lineno = 1;
- buf[0] = 0;
- start = 0;
- end = 0;
- avail = 0;
- cursor = 0;
- refill = 1;
- to_skip = NO_SKIP;
- bytes = 0; /* make compiler happy */
-
- for (;;)
- {
- if ( refill )
- {
- bytes = (ptrdiff_t)FT_Stream_TryRead(
- stream, (FT_Byte*)buf + cursor,
- (FT_ULong)( buf_size - cursor ) );
- avail = cursor + bytes;
- cursor = 0;
- refill = 0;
- }
-
- end = start;
-
- /* should we skip an optional character like \n or \r? */
- if ( start < avail && buf[start] == to_skip )
- {
- start += 1;
- to_skip = NO_SKIP;
- continue;
- }
-
- /* try to find the end of the line */
- while ( end < avail && buf[end] != '\n' && buf[end] != '\r' )
- end++;
-
- /* if we hit the end of the buffer, try shifting its content */
- /* or even resizing it */
- if ( end >= avail )
- {
- if ( bytes == 0 ) /* last line in file doesn't end in \r or \n */
- break; /* ignore it then exit */
-
- if ( start == 0 )
- {
- /* this line is definitely too long; try resizing the input */
- /* buffer a bit to handle it. */
- FT_ULong new_size;
-
-
- if ( buf_size >= 65536UL ) /* limit ourselves to 64KByte */
- {
- error = BDF_Err_Invalid_Argument;
- goto Exit;
- }
-
- new_size = buf_size * 2;
- if ( FT_RENEW_ARRAY( buf, buf_size, new_size ) )
- goto Exit;
-
- cursor = buf_size;
- buf_size = new_size;
- }
- else
- {
- bytes = avail - start;
-
- FT_MEM_COPY( buf, buf + start, bytes );
-
- cursor = bytes;
- avail -= bytes;
- start = 0;
- }
- refill = 1;
- continue;
- }
-
- /* Temporarily NUL-terminate the line. */
- hold = buf[end];
- buf[end] = 0;
-
- /* XXX: Use encoding independent value for 0x1a */
- if ( buf[start] != '#' && buf[start] != 0x1a && end > start )
- {
- error = (*cb)( buf + start, end - start, lineno,
- (void*)&cb, client_data );
- /* Redo if we have encountered CHARS without properties. */
- if ( error == -1 )
- error = (*cb)( buf + start, end - start, lineno,
- (void*)&cb, client_data );
- if ( error )
- break;
- }
-
- lineno += 1;
- buf[end] = (char)hold;
- start = end + 1;
-
- if ( hold == '\n' )
- to_skip = '\r';
- else if ( hold == '\r' )
- to_skip = '\n';
- else
- to_skip = NO_SKIP;
- }
-
- *lno = lineno;
-
- Exit:
- FT_FREE( buf );
- return error;
- }
-
-
- /* XXX: make this work with EBCDIC also */
-
- static const unsigned char a2i[128] =
- {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
-
- static const unsigned char odigits[32] =
- {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
-
- static const unsigned char ddigits[32] =
- {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
-
- static const unsigned char hdigits[32] =
- {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03,
- 0x7e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- };
-
-
-#define isdigok( m, d ) (m[(d) >> 3] & ( 1 << ( (d) & 7 ) ) )
-
-
- /* Routine to convert an ASCII string into an unsigned long integer. */
- static unsigned long
- _bdf_atoul( char* s,
- char** end,
- int base )
- {
- unsigned long v;
- const unsigned char* dmap;
-
-
- if ( s == 0 || *s == 0 )
- return 0;
-
- /* Make sure the radix is something recognizable. Default to 10. */
- switch ( base )
- {
- case 8:
- dmap = odigits;
- break;
- case 16:
- dmap = hdigits;
- break;
- default:
- base = 10;
- dmap = ddigits;
- break;
- }
-
- /* Check for the special hex prefix. */
- if ( *s == '0' &&
- ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) )
- {
- base = 16;
- dmap = hdigits;
- s += 2;
- }
-
- for ( v = 0; isdigok( dmap, *s ); s++ )
- v = v * base + a2i[(int)*s];
-
- if ( end != 0 )
- *end = s;
-
- return v;
- }
-
-
- /* Routine to convert an ASCII string into an signed long integer. */
- static long
- _bdf_atol( char* s,
- char** end,
- int base )
- {
- long v, neg;
- const unsigned char* dmap;
-
-
- if ( s == 0 || *s == 0 )
- return 0;
-
- /* Make sure the radix is something recognizable. Default to 10. */
- switch ( base )
- {
- case 8:
- dmap = odigits;
- break;
- case 16:
- dmap = hdigits;
- break;
- default:
- base = 10;
- dmap = ddigits;
- break;
- }
-
- /* Check for a minus sign. */
- neg = 0;
- if ( *s == '-' )
- {
- s++;
- neg = 1;
- }
-
- /* Check for the special hex prefix. */
- if ( *s == '0' &&
- ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) )
- {
- base = 16;
- dmap = hdigits;
- s += 2;
- }
-
- for ( v = 0; isdigok( dmap, *s ); s++ )
- v = v * base + a2i[(int)*s];
-
- if ( end != 0 )
- *end = s;
-
- return ( !neg ) ? v : -v;
- }
-
-
- /* Routine to convert an ASCII string into an signed short integer. */
- static short
- _bdf_atos( char* s,
- char** end,
- int base )
- {
- short v, neg;
- const unsigned char* dmap;
-
-
- if ( s == 0 || *s == 0 )
- return 0;
-
- /* Make sure the radix is something recognizable. Default to 10. */
- switch ( base )
- {
- case 8:
- dmap = odigits;
- break;
- case 16:
- dmap = hdigits;
- break;
- default:
- base = 10;
- dmap = ddigits;
- break;
- }
-
- /* Check for a minus. */
- neg = 0;
- if ( *s == '-' )
- {
- s++;
- neg = 1;
- }
-
- /* Check for the special hex prefix. */
- if ( *s == '0' &&
- ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) )
- {
- base = 16;
- dmap = hdigits;
- s += 2;
- }
-
- for ( v = 0; isdigok( dmap, *s ); s++ )
- v = (short)( v * base + a2i[(int)*s] );
-
- if ( end != 0 )
- *end = s;
-
- return (short)( ( !neg ) ? v : -v );
- }
-
-
- /* Routine to compare two glyphs by encoding so they can be sorted. */
- static int
- by_encoding( const void* a,
- const void* b )
- {
- bdf_glyph_t *c1, *c2;
-
-
- c1 = (bdf_glyph_t *)a;
- c2 = (bdf_glyph_t *)b;
-
- if ( c1->encoding < c2->encoding )
- return -1;
-
- if ( c1->encoding > c2->encoding )
- return 1;
-
- return 0;
- }
-
-
- static FT_Error
- bdf_create_property( char* name,
- int format,
- bdf_font_t* font )
- {
- size_t n;
- bdf_property_t* p;
- FT_Memory memory = font->memory;
- FT_Error error = BDF_Err_Ok;
-
-
- /* First check to see if the property has */
- /* already been added or not. If it has, then */
- /* simply ignore it. */
- if ( hash_lookup( name, &(font->proptbl) ) )
- goto Exit;
-
- if ( FT_RENEW_ARRAY( font->user_props,
- font->nuser_props,
- font->nuser_props + 1 ) )
- goto Exit;
-
- p = font->user_props + font->nuser_props;
- FT_ZERO( p );
-
- n = ft_strlen( name ) + 1;
- if ( n > FT_ULONG_MAX )
- return BDF_Err_Invalid_Argument;
-
- if ( FT_NEW_ARRAY( p->name, n ) )
- goto Exit;
-
- FT_MEM_COPY( (char *)p->name, name, n );
-
- p->format = format;
- p->builtin = 0;
-
- n = _num_bdf_properties + font->nuser_props;
-
- error = hash_insert( p->name, n, &(font->proptbl), memory );
- if ( error )
- goto Exit;
-
- font->nuser_props++;
-
- Exit:
- return error;
- }
-
-
- FT_LOCAL_DEF( bdf_property_t * )
- bdf_get_property( char* name,
- bdf_font_t* font )
- {
- hashnode hn;
- size_t propid;
-
-
- if ( name == 0 || *name == 0 )
- return 0;
-
- if ( ( hn = hash_lookup( name, &(font->proptbl) ) ) == 0 )
- return 0;
-
- propid = hn->data;
- if ( propid >= _num_bdf_properties )
- return font->user_props + ( propid - _num_bdf_properties );
-
- return (bdf_property_t*)_bdf_properties + propid;
- }
-
-
- /*************************************************************************/
- /* */
- /* BDF font file parsing flags and functions. */
- /* */
- /*************************************************************************/
-
-
- /* Parse flags. */
-
-#define _BDF_START 0x0001
-#define _BDF_FONT_NAME 0x0002
-#define _BDF_SIZE 0x0004
-#define _BDF_FONT_BBX 0x0008
-#define _BDF_PROPS 0x0010
-#define _BDF_GLYPHS 0x0020
-#define _BDF_GLYPH 0x0040
-#define _BDF_ENCODING 0x0080
-#define _BDF_SWIDTH 0x0100
-#define _BDF_DWIDTH 0x0200
-#define _BDF_BBX 0x0400
-#define _BDF_BITMAP 0x0800
-
-#define _BDF_SWIDTH_ADJ 0x1000
-
-#define _BDF_GLYPH_BITS ( _BDF_GLYPH | \
- _BDF_ENCODING | \
- _BDF_SWIDTH | \
- _BDF_DWIDTH | \
- _BDF_BBX | \
- _BDF_BITMAP )
-
-#define _BDF_GLYPH_WIDTH_CHECK 0x40000000UL
-#define _BDF_GLYPH_HEIGHT_CHECK 0x80000000UL
-
-
- /* Auto correction messages. */
-#define ACMSG1 "FONT_ASCENT property missing. " \
- "Added \"FONT_ASCENT %hd\".\n"
-#define ACMSG2 "FONT_DESCENT property missing. " \
- "Added \"FONT_DESCENT %hd\".\n"
-#define ACMSG3 "Font width != actual width. Old: %hd New: %hd.\n"
-#define ACMSG4 "Font left bearing != actual left bearing. " \
- "Old: %hd New: %hd.\n"
-#define ACMSG5 "Font ascent != actual ascent. Old: %hd New: %hd.\n"
-#define ACMSG6 "Font descent != actual descent. Old: %hd New: %hd.\n"
-#define ACMSG7 "Font height != actual height. Old: %hd New: %hd.\n"
-#define ACMSG8 "Glyph scalable width (SWIDTH) adjustments made.\n"
-#define ACMSG9 "SWIDTH field missing at line %ld. Set automatically.\n"
-#define ACMSG10 "DWIDTH field missing at line %ld. Set to glyph width.\n"
-#define ACMSG11 "SIZE bits per pixel field adjusted to %hd.\n"
-#define ACMSG12 "Duplicate encoding %ld (%s) changed to unencoded.\n"
-#define ACMSG13 "Glyph %ld extra rows removed.\n"
-#define ACMSG14 "Glyph %ld extra columns removed.\n"
-#define ACMSG15 "Incorrect glyph count: %ld indicated but %ld found.\n"
-
- /* Error messages. */
-#define ERRMSG1 "[line %ld] Missing \"%s\" line.\n"
-#define ERRMSG2 "[line %ld] Font header corrupted or missing fields.\n"
-#define ERRMSG3 "[line %ld] Font glyphs corrupted or missing fields.\n"
-#define ERRMSG4 "[line %ld] BBX too big.\n"
-
-
- static FT_Error
- _bdf_add_comment( bdf_font_t* font,
- char* comment,
- unsigned long len )
- {
- char* cp;
- FT_Memory memory = font->memory;
- FT_Error error = BDF_Err_Ok;
-
-
- if ( FT_RENEW_ARRAY( font->comments,
- font->comments_len,
- font->comments_len + len + 1 ) )
- goto Exit;
-
- cp = font->comments + font->comments_len;
-
- FT_MEM_COPY( cp, comment, len );
- cp[len] = '\n';
-
- font->comments_len += len + 1;
-
- Exit:
- return error;
- }
-
-
- /* Set the spacing from the font name if it exists, or set it to the */
- /* default specified in the options. */
- static FT_Error
- _bdf_set_default_spacing( bdf_font_t* font,
- bdf_options_t* opts )
- {
- size_t len;
- char name[256];
- _bdf_list_t list;
- FT_Memory memory;
- FT_Error error = BDF_Err_Ok;
-
-
- if ( font == 0 || font->name == 0 || font->name[0] == 0 )
- {
- error = BDF_Err_Invalid_Argument;
- goto Exit;
- }
-
- memory = font->memory;
-
- _bdf_list_init( &list, memory );
-
- font->spacing = opts->font_spacing;
-
- len = ft_strlen( font->name ) + 1;
- /* Limit ourselves to 256 characters in the font name. */
- if ( len >= 256 )
- {
- error = BDF_Err_Invalid_Argument;
- goto Exit;
- }
-
- FT_MEM_COPY( name, font->name, len );
-
- error = _bdf_list_split( &list, (char *)"-", name, len );
- if ( error )
- goto Fail;
-
- if ( list.used == 15 )
- {
- switch ( list.field[11][0] )
- {
- case 'C':
- case 'c':
- font->spacing = BDF_CHARCELL;
- break;
- case 'M':
- case 'm':
- font->spacing = BDF_MONOWIDTH;
- break;
- case 'P':
- case 'p':
- font->spacing = BDF_PROPORTIONAL;
- break;
- }
- }
-
- Fail:
- _bdf_list_done( &list );
-
- Exit:
- return error;
- }
-
-
- /* Determine whether the property is an atom or not. If it is, then */
- /* clean it up so the double quotes are removed if they exist. */
- static int
- _bdf_is_atom( char* line,
- unsigned long linelen,
- char** name,
- char** value,
- bdf_font_t* font )
- {
- int hold;
- char *sp, *ep;
- bdf_property_t* p;
-
-
- *name = sp = ep = line;
-
- while ( *ep && *ep != ' ' && *ep != '\t' )
- ep++;
-
- hold = -1;
- if ( *ep )
- {
- hold = *ep;
- *ep = 0;
- }
-
- p = bdf_get_property( sp, font );
-
- /* Restore the character that was saved before any return can happen. */
- if ( hold != -1 )
- *ep = (char)hold;
-
- /* If the property exists and is not an atom, just return here. */
- if ( p && p->format != BDF_ATOM )
- return 0;
-
- /* The property is an atom. Trim all leading and trailing whitespace */
- /* and double quotes for the atom value. */
- sp = ep;
- ep = line + linelen;
-
- /* Trim the leading whitespace if it exists. */
- *sp++ = 0;
- while ( *sp &&
- ( *sp == ' ' || *sp == '\t' ) )
- sp++;
-
- /* Trim the leading double quote if it exists. */
- if ( *sp == '"' )
- sp++;
- *value = sp;
-
- /* Trim the trailing whitespace if it exists. */
- while ( ep > sp &&
- ( *( ep - 1 ) == ' ' || *( ep - 1 ) == '\t' ) )
- *--ep = 0;
-
- /* Trim the trailing double quote if it exists. */
- if ( ep > sp && *( ep - 1 ) == '"' )
- *--ep = 0;
-
- return 1;
- }
-
-
- static FT_Error
- _bdf_add_property( bdf_font_t* font,
- char* name,
- char* value )
- {
- size_t propid;
- hashnode hn;
- bdf_property_t *prop, *fp;
- FT_Memory memory = font->memory;
- FT_Error error = BDF_Err_Ok;
-
-
- /* First, check to see if the property already exists in the font. */
- if ( ( hn = hash_lookup( name, (hashtable *)font->internal ) ) != 0 )
- {
- /* The property already exists in the font, so simply replace */
- /* the value of the property with the current value. */
- fp = font->props + hn->data;
-
- switch ( fp->format )
- {
- case BDF_ATOM:
- /* Delete the current atom if it exists. */
- FT_FREE( fp->value.atom );
-
- if ( value && value[0] != 0 )
- {
- if ( FT_STRDUP( fp->value.atom, value ) )
- goto Exit;
- }
- break;
-
- case BDF_INTEGER:
- fp->value.l = _bdf_atol( value, 0, 10 );
- break;
-
- case BDF_CARDINAL:
- fp->value.ul = _bdf_atoul( value, 0, 10 );
- break;
-
- default:
- ;
- }
-
- goto Exit;
- }
-
- /* See whether this property type exists yet or not. */
- /* If not, create it. */
- hn = hash_lookup( name, &(font->proptbl) );
- if ( hn == 0 )
- {
- error = bdf_create_property( name, BDF_ATOM, font );
- if ( error )
- goto Exit;
- hn = hash_lookup( name, &(font->proptbl) );
- }
-
- /* Allocate another property if this is overflow. */
- if ( font->props_used == font->props_size )
- {
- if ( font->props_size == 0 )
- {
- if ( FT_NEW_ARRAY( font->props, 1 ) )
- goto Exit;
- }
- else
- {
- if ( FT_RENEW_ARRAY( font->props,
- font->props_size,
- font->props_size + 1 ) )
- goto Exit;
- }
-
- fp = font->props + font->props_size;
- FT_MEM_ZERO( fp, sizeof ( bdf_property_t ) );
- font->props_size++;
- }
-
- propid = hn->data;
- if ( propid >= _num_bdf_properties )
- prop = font->user_props + ( propid - _num_bdf_properties );
- else
- prop = (bdf_property_t*)_bdf_properties + propid;
-
- fp = font->props + font->props_used;
-
- fp->name = prop->name;
- fp->format = prop->format;
- fp->builtin = prop->builtin;
-
- switch ( prop->format )
- {
- case BDF_ATOM:
- fp->value.atom = 0;
- if ( value != 0 && value[0] )
- {
- if ( FT_STRDUP( fp->value.atom, value ) )
- goto Exit;
- }
- break;
-
- case BDF_INTEGER:
- fp->value.l = _bdf_atol( value, 0, 10 );
- break;
-
- case BDF_CARDINAL:
- fp->value.ul = _bdf_atoul( value, 0, 10 );
- break;
- }
-
- /* If the property happens to be a comment, then it doesn't need */
- /* to be added to the internal hash table. */
- if ( ft_memcmp( name, "COMMENT", 7 ) != 0 )
- {
- /* Add the property to the font property table. */
- error = hash_insert( fp->name,
- font->props_used,
- (hashtable *)font->internal,
- memory );
- if ( error )
- goto Exit;
- }
-
- font->props_used++;
-
- /* Some special cases need to be handled here. The DEFAULT_CHAR */
- /* property needs to be located if it exists in the property list, the */
- /* FONT_ASCENT and FONT_DESCENT need to be assigned if they are */
- /* present, and the SPACING property should override the default */
- /* spacing. */
- if ( ft_memcmp( name, "DEFAULT_CHAR", 12 ) == 0 )
- font->default_char = fp->value.l;
- else if ( ft_memcmp( name, "FONT_ASCENT", 11 ) == 0 )
- font->font_ascent = fp->value.l;
- else if ( ft_memcmp( name, "FONT_DESCENT", 12 ) == 0 )
- font->font_descent = fp->value.l;
- else if ( ft_memcmp( name, "SPACING", 7 ) == 0 )
- {
- if ( !fp->value.atom )
- {
- error = BDF_Err_Invalid_File_Format;
- goto Exit;
- }
-
- if ( fp->value.atom[0] == 'p' || fp->value.atom[0] == 'P' )
- font->spacing = BDF_PROPORTIONAL;
- else if ( fp->value.atom[0] == 'm' || fp->value.atom[0] == 'M' )
- font->spacing = BDF_MONOWIDTH;
- else if ( fp->value.atom[0] == 'c' || fp->value.atom[0] == 'C' )
- font->spacing = BDF_CHARCELL;
- }
-
- Exit:
- return error;
- }
-
-
- static const unsigned char nibble_mask[8] =
- {
- 0xFF, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE
- };
-
-
- /* Actually parse the glyph info and bitmaps. */
- static FT_Error
- _bdf_parse_glyphs( char* line,
- unsigned long linelen,
- unsigned long lineno,
- void* call_data,
- void* client_data )
- {
- int c, mask_index;
- char* s;
- unsigned char* bp;
- unsigned long i, slen, nibbles;
-
- _bdf_parse_t* p;
- bdf_glyph_t* glyph;
- bdf_font_t* font;
-
- FT_Memory memory;
- FT_Error error = BDF_Err_Ok;
-
- FT_UNUSED( call_data );
- FT_UNUSED( lineno ); /* only used in debug mode */
-
-
- p = (_bdf_parse_t *)client_data;
-
- font = p->font;
- memory = font->memory;
-
- /* Check for a comment. */
- if ( ft_memcmp( line, "COMMENT", 7 ) == 0 )
- {
- linelen -= 7;
-
- s = line + 7;
- if ( *s != 0 )
- {
- s++;
- linelen--;
- }
- error = _bdf_add_comment( p->font, s, linelen );
- goto Exit;
- }
-
- /* The very first thing expected is the number of glyphs. */
- if ( !( p->flags & _BDF_GLYPHS ) )
- {
- if ( ft_memcmp( line, "CHARS", 5 ) != 0 )
- {
- FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "CHARS" ));
- error = BDF_Err_Missing_Chars_Field;
- goto Exit;
- }
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
- p->cnt = font->glyphs_size = _bdf_atoul( p->list.field[1], 0, 10 );
-
- /* Make sure the number of glyphs is non-zero. */
- if ( p->cnt == 0 )
- font->glyphs_size = 64;
-
- /* Limit ourselves to 1,114,112 glyphs in the font (this is the */
- /* number of code points available in Unicode). */
- if ( p->cnt >= 1114112UL )
- {
- error = BDF_Err_Invalid_Argument;
- goto Exit;
- }
-
- if ( FT_NEW_ARRAY( font->glyphs, font->glyphs_size ) )
- goto Exit;
-
- p->flags |= _BDF_GLYPHS;
-
- goto Exit;
- }
-
- /* Check for the ENDFONT field. */
- if ( ft_memcmp( line, "ENDFONT", 7 ) == 0 )
- {
- /* Sort the glyphs by encoding. */
- ft_qsort( (char *)font->glyphs,
- font->glyphs_used,
- sizeof ( bdf_glyph_t ),
- by_encoding );
-
- p->flags &= ~_BDF_START;
-
- goto Exit;
- }
-
- /* Check for the ENDCHAR field. */
- if ( ft_memcmp( line, "ENDCHAR", 7 ) == 0 )
- {
- p->glyph_enc = 0;
- p->flags &= ~_BDF_GLYPH_BITS;
-
- goto Exit;
- }
-
- /* Check to see whether a glyph is being scanned but should be */
- /* ignored because it is an unencoded glyph. */
- if ( ( p->flags & _BDF_GLYPH ) &&
- p->glyph_enc == -1 &&
- p->opts->keep_unencoded == 0 )
- goto Exit;
-
- /* Check for the STARTCHAR field. */
- if ( ft_memcmp( line, "STARTCHAR", 9 ) == 0 )
- {
- /* Set the character name in the parse info first until the */
- /* encoding can be checked for an unencoded character. */
- FT_FREE( p->glyph_name );
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- _bdf_list_shift( &p->list, 1 );
-
- s = _bdf_list_join( &p->list, ' ', &slen );
-
- if ( !s )
- {
- error = BDF_Err_Invalid_File_Format;
- goto Exit;
- }
-
- if ( FT_NEW_ARRAY( p->glyph_name, slen + 1 ) )
- goto Exit;
-
- FT_MEM_COPY( p->glyph_name, s, slen + 1 );
-
- p->flags |= _BDF_GLYPH;
-
- goto Exit;
- }
-
- /* Check for the ENCODING field. */
- if ( ft_memcmp( line, "ENCODING", 8 ) == 0 )
- {
- if ( !( p->flags & _BDF_GLYPH ) )
- {
- /* Missing STARTCHAR field. */
- FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "STARTCHAR" ));
- error = BDF_Err_Missing_Startchar_Field;
- goto Exit;
- }
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- p->glyph_enc = _bdf_atol( p->list.field[1], 0, 10 );
-
- /* Check that the encoding is in the range [0,65536] because */
- /* otherwise p->have (a bitmap with static size) overflows. */
- if ( (size_t)p->glyph_enc >= sizeof ( p->have ) * 8 )
- {
- error = BDF_Err_Invalid_File_Format;
- goto Exit;
- }
-
- /* Check to see whether this encoding has already been encountered. */
- /* If it has then change it to unencoded so it gets added if */
- /* indicated. */
- if ( p->glyph_enc >= 0 )
- {
- if ( _bdf_glyph_modified( p->have, p->glyph_enc ) )
- {
- /* Emit a message saying a glyph has been moved to the */
- /* unencoded area. */
- FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG12,
- p->glyph_enc, p->glyph_name ));
- p->glyph_enc = -1;
- font->modified = 1;
- }
- else
- _bdf_set_glyph_modified( p->have, p->glyph_enc );
- }
-
- if ( p->glyph_enc >= 0 )
- {
- /* Make sure there are enough glyphs allocated in case the */
- /* number of characters happen to be wrong. */
- if ( font->glyphs_used == font->glyphs_size )
- {
- if ( FT_RENEW_ARRAY( font->glyphs,
- font->glyphs_size,
- font->glyphs_size + 64 ) )
- goto Exit;
-
- font->glyphs_size += 64;
- }
-
- glyph = font->glyphs + font->glyphs_used++;
- glyph->name = p->glyph_name;
- glyph->encoding = p->glyph_enc;
-
- /* Reset the initial glyph info. */
- p->glyph_name = 0;
- }
- else
- {
- /* Unencoded glyph. Check to see whether it should */
- /* be added or not. */
- if ( p->opts->keep_unencoded != 0 )
- {
- /* Allocate the next unencoded glyph. */
- if ( font->unencoded_used == font->unencoded_size )
- {
- if ( FT_RENEW_ARRAY( font->unencoded ,
- font->unencoded_size,
- font->unencoded_size + 4 ) )
- goto Exit;
-
- font->unencoded_size += 4;
- }
-
- glyph = font->unencoded + font->unencoded_used;
- glyph->name = p->glyph_name;
- glyph->encoding = font->unencoded_used++;
- }
- else
- /* Free up the glyph name if the unencoded shouldn't be */
- /* kept. */
- FT_FREE( p->glyph_name );
-
- p->glyph_name = 0;
- }
-
- /* Clear the flags that might be added when width and height are */
- /* checked for consistency. */
- p->flags &= ~( _BDF_GLYPH_WIDTH_CHECK | _BDF_GLYPH_HEIGHT_CHECK );
-
- p->flags |= _BDF_ENCODING;
-
- goto Exit;
- }
-
- /* Point at the glyph being constructed. */
- if ( p->glyph_enc == -1 )
- glyph = font->unencoded + ( font->unencoded_used - 1 );
- else
- glyph = font->glyphs + ( font->glyphs_used - 1 );
-
- /* Check to see whether a bitmap is being constructed. */
- if ( p->flags & _BDF_BITMAP )
- {
- /* If there are more rows than are specified in the glyph metrics, */
- /* ignore the remaining lines. */
- if ( p->row >= (unsigned long)glyph->bbx.height )
- {
- if ( !( p->flags & _BDF_GLYPH_HEIGHT_CHECK ) )
- {
- FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG13, glyph->encoding ));
- p->flags |= _BDF_GLYPH_HEIGHT_CHECK;
- font->modified = 1;
- }
-
- goto Exit;
- }
-
- /* Only collect the number of nibbles indicated by the glyph */
- /* metrics. If there are more columns, they are simply ignored. */
- nibbles = glyph->bpr << 1;
- bp = glyph->bitmap + p->row * glyph->bpr;
-
- for ( i = 0; i < nibbles; i++ )
- {
- c = line[i];
- *bp = (FT_Byte)( ( *bp << 4 ) + a2i[c] );
- if ( i + 1 < nibbles && ( i & 1 ) )
- *++bp = 0;
- }
-
- /* Remove possible garbage at the right. */
- mask_index = ( glyph->bbx.width * p->font->bpp ) & 7;
- if ( glyph->bbx.width )
- *bp &= nibble_mask[mask_index];
-
- /* If any line has extra columns, indicate they have been removed. */
- if ( ( line[nibbles] == '0' || a2i[(int)line[nibbles]] != 0 ) &&
- !( p->flags & _BDF_GLYPH_WIDTH_CHECK ) )
- {
- FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG14, glyph->encoding ));
- p->flags |= _BDF_GLYPH_WIDTH_CHECK;
- font->modified = 1;
- }
-
- p->row++;
- goto Exit;
- }
-
- /* Expect the SWIDTH (scalable width) field next. */
- if ( ft_memcmp( line, "SWIDTH", 6 ) == 0 )
- {
- if ( !( p->flags & _BDF_ENCODING ) )
- {
- /* Missing ENCODING field. */
- FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "ENCODING" ));
- error = BDF_Err_Missing_Encoding_Field;
- goto Exit;
- }
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- glyph->swidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 );
- p->flags |= _BDF_SWIDTH;
-
- goto Exit;
- }
-
- /* Expect the DWIDTH (scalable width) field next. */
- if ( ft_memcmp( line, "DWIDTH", 6 ) == 0 )
- {
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- glyph->dwidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 );
-
- if ( !( p->flags & _BDF_SWIDTH ) )
- {
- /* Missing SWIDTH field. Emit an auto correction message and set */
- /* the scalable width from the device width. */
- FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG9, lineno ));
-
- glyph->swidth = (unsigned short)FT_MulDiv(
- glyph->dwidth, 72000L,
- (FT_Long)( font->point_size *
- font->resolution_x ) );
- }
-
- p->flags |= _BDF_DWIDTH;
- goto Exit;
- }
-
- /* Expect the BBX field next. */
- if ( ft_memcmp( line, "BBX", 3 ) == 0 )
- {
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- glyph->bbx.width = _bdf_atos( p->list.field[1], 0, 10 );
- glyph->bbx.height = _bdf_atos( p->list.field[2], 0, 10 );
- glyph->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 );
- glyph->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 );
-
- /* Generate the ascent and descent of the character. */
- glyph->bbx.ascent = (short)( glyph->bbx.height + glyph->bbx.y_offset );
- glyph->bbx.descent = (short)( -glyph->bbx.y_offset );
-
- /* Determine the overall font bounding box as the characters are */
- /* loaded so corrections can be done later if indicated. */
- p->maxas = (short)FT_MAX( glyph->bbx.ascent, p->maxas );
- p->maxds = (short)FT_MAX( glyph->bbx.descent, p->maxds );
-
- p->rbearing = (short)( glyph->bbx.width + glyph->bbx.x_offset );
-
- p->maxrb = (short)FT_MAX( p->rbearing, p->maxrb );
- p->minlb = (short)FT_MIN( glyph->bbx.x_offset, p->minlb );
- p->maxlb = (short)FT_MAX( glyph->bbx.x_offset, p->maxlb );
-
- if ( !( p->flags & _BDF_DWIDTH ) )
- {
- /* Missing DWIDTH field. Emit an auto correction message and set */
- /* the device width to the glyph width. */
- FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG10, lineno ));
- glyph->dwidth = glyph->bbx.width;
- }
-
- /* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */
- /* value if necessary. */
- if ( p->opts->correct_metrics != 0 )
- {
- /* Determine the point size of the glyph. */
- unsigned short sw = (unsigned short)FT_MulDiv(
- glyph->dwidth, 72000L,
- (FT_Long)( font->point_size *
- font->resolution_x ) );
-
-
- if ( sw != glyph->swidth )
- {
- glyph->swidth = sw;
-
- if ( p->glyph_enc == -1 )
- _bdf_set_glyph_modified( font->umod,
- font->unencoded_used - 1 );
- else
- _bdf_set_glyph_modified( font->nmod, glyph->encoding );
-
- p->flags |= _BDF_SWIDTH_ADJ;
- font->modified = 1;
- }
- }
-
- p->flags |= _BDF_BBX;
- goto Exit;
- }
-
- /* And finally, gather up the bitmap. */
- if ( ft_memcmp( line, "BITMAP", 6 ) == 0 )
- {
- unsigned long bitmap_size;
-
-
- if ( !( p->flags & _BDF_BBX ) )
- {
- /* Missing BBX field. */
- FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "BBX" ));
- error = BDF_Err_Missing_Bbx_Field;
- goto Exit;
- }
-
- /* Allocate enough space for the bitmap. */
- glyph->bpr = ( glyph->bbx.width * p->font->bpp + 7 ) >> 3;
-
- bitmap_size = glyph->bpr * glyph->bbx.height;
- if ( bitmap_size > 0xFFFFU )
- {
- FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG4, lineno ));
- error = BDF_Err_Bbx_Too_Big;
- goto Exit;
- }
- else
- glyph->bytes = (unsigned short)bitmap_size;
-
- if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) )
- goto Exit;
-
- p->row = 0;
- p->flags |= _BDF_BITMAP;
-
- goto Exit;
- }
-
- error = BDF_Err_Invalid_File_Format;
-
- Exit:
- if ( error && ( p->flags & _BDF_GLYPH ) )
- FT_FREE( p->glyph_name );
-
- return error;
- }
-
-
- /* Load the font properties. */
- static FT_Error
- _bdf_parse_properties( char* line,
- unsigned long linelen,
- unsigned long lineno,
- void* call_data,
- void* client_data )
- {
- unsigned long vlen;
- _bdf_line_func_t* next;
- _bdf_parse_t* p;
- char* name;
- char* value;
- char nbuf[128];
- FT_Error error = BDF_Err_Ok;
-
- FT_UNUSED( lineno );
-
-
- next = (_bdf_line_func_t *)call_data;
- p = (_bdf_parse_t *) client_data;
-
- /* Check for the end of the properties. */
- if ( ft_memcmp( line, "ENDPROPERTIES", 13 ) == 0 )
- {
- /* If the FONT_ASCENT or FONT_DESCENT properties have not been */
- /* encountered yet, then make sure they are added as properties and */
- /* make sure they are set from the font bounding box info. */
- /* */
- /* This is *always* done regardless of the options, because X11 */
- /* requires these two fields to compile fonts. */
- if ( bdf_get_font_property( p->font, "FONT_ASCENT" ) == 0 )
- {
- p->font->font_ascent = p->font->bbx.ascent;
- ft_sprintf( nbuf, "%hd", p->font->bbx.ascent );
- error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", nbuf );
- if ( error )
- goto Exit;
-
- FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent ));
- p->font->modified = 1;
- }
-
- if ( bdf_get_font_property( p->font, "FONT_DESCENT" ) == 0 )
- {
- p->font->font_descent = p->font->bbx.descent;
- ft_sprintf( nbuf, "%hd", p->font->bbx.descent );
- error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", nbuf );
- if ( error )
- goto Exit;
-
- FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent ));
- p->font->modified = 1;
- }
-
- p->flags &= ~_BDF_PROPS;
- *next = _bdf_parse_glyphs;
-
- goto Exit;
- }
-
- /* Ignore the _XFREE86_GLYPH_RANGES properties. */
- if ( ft_memcmp( line, "_XFREE86_GLYPH_RANGES", 21 ) == 0 )
- goto Exit;
-
- /* Handle COMMENT fields and properties in a special way to preserve */
- /* the spacing. */
- if ( ft_memcmp( line, "COMMENT", 7 ) == 0 )
- {
- name = value = line;
- value += 7;
- if ( *value )
- *value++ = 0;
- error = _bdf_add_property( p->font, name, value );
- if ( error )
- goto Exit;
- }
- else if ( _bdf_is_atom( line, linelen, &name, &value, p->font ) )
- {
- error = _bdf_add_property( p->font, name, value );
- if ( error )
- goto Exit;
- }
- else
- {
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
- name = p->list.field[0];
-
- _bdf_list_shift( &p->list, 1 );
- value = _bdf_list_join( &p->list, ' ', &vlen );
-
- error = _bdf_add_property( p->font, name, value );
- if ( error )
- goto Exit;
- }
-
- Exit:
- return error;
- }
-
-
- /* Load the font header. */
- static FT_Error
- _bdf_parse_start( char* line,
- unsigned long linelen,
- unsigned long lineno,
- void* call_data,
- void* client_data )
- {
- unsigned long slen;
- _bdf_line_func_t* next;
- _bdf_parse_t* p;
- bdf_font_t* font;
- char *s;
-
- FT_Memory memory = NULL;
- FT_Error error = BDF_Err_Ok;
-
- FT_UNUSED( lineno ); /* only used in debug mode */
-
-
- next = (_bdf_line_func_t *)call_data;
- p = (_bdf_parse_t *) client_data;
-
- if ( p->font )
- memory = p->font->memory;
-
- /* Check for a comment. This is done to handle those fonts that have */
- /* comments before the STARTFONT line for some reason. */
- if ( ft_memcmp( line, "COMMENT", 7 ) == 0 )
- {
- if ( p->opts->keep_comments != 0 && p->font != 0 )
- {
- linelen -= 7;
-
- s = line + 7;
- if ( *s != 0 )
- {
- s++;
- linelen--;
- }
-
- error = _bdf_add_comment( p->font, s, linelen );
- if ( error )
- goto Exit;
- /* here font is not defined! */
- }
-
- goto Exit;
- }
-
- if ( !( p->flags & _BDF_START ) )
- {
- memory = p->memory;
-
- if ( ft_memcmp( line, "STARTFONT", 9 ) != 0 )
- {
- /* No STARTFONT field is a good indication of a problem. */
- error = BDF_Err_Missing_Startfont_Field;
- goto Exit;
- }
-
- p->flags = _BDF_START;
- font = p->font = 0;
-
- if ( FT_NEW( font ) )
- goto Exit;
- p->font = font;
-
- font->memory = p->memory;
- p->memory = 0;
-
- { /* setup */
- size_t i;
- bdf_property_t* prop;
-
-
- error = hash_init( &(font->proptbl), memory );
- if ( error )
- goto Exit;
- for ( i = 0, prop = (bdf_property_t*)_bdf_properties;
- i < _num_bdf_properties; i++, prop++ )
- {
- error = hash_insert( prop->name, i,
- &(font->proptbl), memory );
- if ( error )
- goto Exit;
- }
- }
-
- if ( FT_ALLOC( p->font->internal, sizeof ( hashtable ) ) )
- goto Exit;
- error = hash_init( (hashtable *)p->font->internal,memory );
- if ( error )
- goto Exit;
- p->font->spacing = p->opts->font_spacing;
- p->font->default_char = -1;
-
- goto Exit;
- }
-
- /* Check for the start of the properties. */
- if ( ft_memcmp( line, "STARTPROPERTIES", 15 ) == 0 )
- {
- if ( !( p->flags & _BDF_FONT_BBX ) )
- {
- /* Missing the FONTBOUNDINGBOX field. */
- FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" ));
- error = BDF_Err_Missing_Fontboundingbox_Field;
- goto Exit;
- }
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
- /* at this point, `p->font' can't be NULL */
- p->cnt = p->font->props_size = _bdf_atoul( p->list.field[1], 0, 10 );
-
- if ( FT_NEW_ARRAY( p->font->props, p->cnt ) )
- goto Exit;
-
- p->flags |= _BDF_PROPS;
- *next = _bdf_parse_properties;
-
- goto Exit;
- }
-
- /* Check for the FONTBOUNDINGBOX field. */
- if ( ft_memcmp( line, "FONTBOUNDINGBOX", 15 ) == 0 )
- {
- if ( !( p->flags & _BDF_SIZE ) )
- {
- /* Missing the SIZE field. */
- FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "SIZE" ));
- error = BDF_Err_Missing_Size_Field;
- goto Exit;
- }
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- p->font->bbx.width = _bdf_atos( p->list.field[1], 0, 10 );
- p->font->bbx.height = _bdf_atos( p->list.field[2], 0, 10 );
-
- p->font->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 );
- p->font->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 );
-
- p->font->bbx.ascent = (short)( p->font->bbx.height +
- p->font->bbx.y_offset );
-
- p->font->bbx.descent = (short)( -p->font->bbx.y_offset );
-
- p->flags |= _BDF_FONT_BBX;
-
- goto Exit;
- }
-
- /* The next thing to check for is the FONT field. */
- if ( ft_memcmp( line, "FONT", 4 ) == 0 )
- {
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
- _bdf_list_shift( &p->list, 1 );
-
- s = _bdf_list_join( &p->list, ' ', &slen );
-
- if ( !s )
- {
- error = BDF_Err_Invalid_File_Format;
- goto Exit;
- }
-
- /* Allowing multiple `FONT' lines (which is invalid) doesn't hurt... */
- FT_FREE( p->font->name );
-
- if ( FT_NEW_ARRAY( p->font->name, slen + 1 ) )
- goto Exit;
- FT_MEM_COPY( p->font->name, s, slen + 1 );
-
- /* If the font name is an XLFD name, set the spacing to the one in */
- /* the font name. If there is no spacing fall back on the default. */
- error = _bdf_set_default_spacing( p->font, p->opts );
- if ( error )
- goto Exit;
-
- p->flags |= _BDF_FONT_NAME;
-
- goto Exit;
- }
-
- /* Check for the SIZE field. */
- if ( ft_memcmp( line, "SIZE", 4 ) == 0 )
- {
- if ( !( p->flags & _BDF_FONT_NAME ) )
- {
- /* Missing the FONT field. */
- FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONT" ));
- error = BDF_Err_Missing_Font_Field;
- goto Exit;
- }
-
- error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
- if ( error )
- goto Exit;
-
- p->font->point_size = _bdf_atoul( p->list.field[1], 0, 10 );
- p->font->resolution_x = _bdf_atoul( p->list.field[2], 0, 10 );
- p->font->resolution_y = _bdf_atoul( p->list.field[3], 0, 10 );
-
- /* Check for the bits per pixel field. */
- if ( p->list.used == 5 )
- {
- unsigned short bitcount, i, shift;
-
-
- p->font->bpp = (unsigned short)_bdf_atos( p->list.field[4], 0, 10 );
-
- /* Only values 1, 2, 4, 8 are allowed. */
- shift = p->font->bpp;
- bitcount = 0;
- for ( i = 0; shift > 0; i++ )
- {
- if ( shift & 1 )
- bitcount = i;
- shift >>= 1;
- }
-
- shift = (short)( ( bitcount > 3 ) ? 8 : ( 1 << bitcount ) );
-
- if ( p->font->bpp > shift || p->font->bpp != shift )
- {
- /* select next higher value */
- p->font->bpp = (unsigned short)( shift << 1 );
- FT_TRACE2(( "_bdf_parse_start: " ACMSG11, p->font->bpp ));
- }
- }
- else
- p->font->bpp = 1;
-
- p->flags |= _BDF_SIZE;
-
- goto Exit;
- }
-
- /* Check for the CHARS field -- font properties are optional */
- if ( ft_memcmp( line, "CHARS", 5 ) == 0 )
- {
- char nbuf[128];
-
-
- if ( !( p->flags & _BDF_FONT_BBX ) )
- {
- /* Missing the FONTBOUNDINGBOX field. */
- FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" ));
- error = BDF_Err_Missing_Fontboundingbox_Field;
- goto Exit;
- }
-
- /* Add the two standard X11 properties which are required */
- /* for compiling fonts. */
- p->font->font_ascent = p->font->bbx.ascent;
- ft_sprintf( nbuf, "%hd", p->font->bbx.ascent );
- error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", nbuf );
- if ( error )
- goto Exit;
- FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent ));
-
- p->font->font_descent = p->font->bbx.descent;
- ft_sprintf( nbuf, "%hd", p->font->bbx.descent );
- error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", nbuf );
- if ( error )
- goto Exit;
- FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent ));
-
- p->font->modified = 1;
-
- *next = _bdf_parse_glyphs;
-
- /* A special return value. */
- error = -1;
- goto Exit;
- }
-
- error = BDF_Err_Invalid_File_Format;
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* API. */
- /* */
- /*************************************************************************/
-
-
- FT_LOCAL_DEF( FT_Error )
- bdf_load_font( FT_Stream stream,
- FT_Memory extmemory,
- bdf_options_t* opts,
- bdf_font_t* *font )
- {
- unsigned long lineno = 0; /* make compiler happy */
- _bdf_parse_t *p = NULL;
-
- FT_Memory memory = extmemory;
- FT_Error error = BDF_Err_Ok;
-
-
- if ( FT_NEW( p ) )
- goto Exit;
-
- memory = NULL;
- p->opts = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts );
- p->minlb = 32767;
- p->memory = extmemory; /* only during font creation */
-
- _bdf_list_init( &p->list, extmemory );
-
- error = _bdf_readstream( stream, _bdf_parse_start,
- (void *)p, &lineno );
- if ( error )
- goto Fail;
-
- if ( p->font != 0 )
- {
- /* If the font is not proportional, set the font's monowidth */
- /* field to the width of the font bounding box. */
- memory = p->font->memory;
-
- if ( p->font->spacing != BDF_PROPORTIONAL )
- p->font->monowidth = p->font->bbx.width;
-
- /* If the number of glyphs loaded is not that of the original count, */
- /* indicate the difference. */
- if ( p->cnt != p->font->glyphs_used + p->font->unencoded_used )
- {
- FT_TRACE2(( "bdf_load_font: " ACMSG15, p->cnt,
- p->font->glyphs_used + p->font->unencoded_used ));
- p->font->modified = 1;
- }
-
- /* Once the font has been loaded, adjust the overall font metrics if */
- /* necessary. */
- if ( p->opts->correct_metrics != 0 &&
- ( p->font->glyphs_used > 0 || p->font->unencoded_used > 0 ) )
- {
- if ( p->maxrb - p->minlb != p->font->bbx.width )
- {
- FT_TRACE2(( "bdf_load_font: " ACMSG3,
- p->font->bbx.width, p->maxrb - p->minlb ));
- p->font->bbx.width = (unsigned short)( p->maxrb - p->minlb );
- p->font->modified = 1;
- }
-
- if ( p->font->bbx.x_offset != p->minlb )
- {
- FT_TRACE2(( "bdf_load_font: " ACMSG4,
- p->font->bbx.x_offset, p->minlb ));
- p->font->bbx.x_offset = p->minlb;
- p->font->modified = 1;
- }
-
- if ( p->font->bbx.ascent != p->maxas )
- {
- FT_TRACE2(( "bdf_load_font: " ACMSG5,
- p->font->bbx.ascent, p->maxas ));
- p->font->bbx.ascent = p->maxas;
- p->font->modified = 1;
- }
-
- if ( p->font->bbx.descent != p->maxds )
- {
- FT_TRACE2(( "bdf_load_font: " ACMSG6,
- p->font->bbx.descent, p->maxds ));
- p->font->bbx.descent = p->maxds;
- p->font->bbx.y_offset = (short)( -p->maxds );
- p->font->modified = 1;
- }
-
- if ( p->maxas + p->maxds != p->font->bbx.height )
- {
- FT_TRACE2(( "bdf_load_font: " ACMSG7,
- p->font->bbx.height, p->maxas + p->maxds ));
- p->font->bbx.height = (unsigned short)( p->maxas + p->maxds );
- }
-
- if ( p->flags & _BDF_SWIDTH_ADJ )
- FT_TRACE2(( "bdf_load_font: " ACMSG8 ));
- }
- }
-
- if ( p->flags & _BDF_START )
- {
- {
- /* The ENDFONT field was never reached or did not exist. */
- if ( !( p->flags & _BDF_GLYPHS ) )
- {
- /* Error happened while parsing header. */
- FT_ERROR(( "bdf_load_font: " ERRMSG2, lineno ));
- error = BDF_Err_Corrupted_Font_Header;
- goto Exit;
- }
- else
- {
- /* Error happened when parsing glyphs. */
- FT_ERROR(( "bdf_load_font: " ERRMSG3, lineno ));
- error = BDF_Err_Corrupted_Font_Glyphs;
- goto Exit;
- }
- }
- }
-
- if ( p->font != 0 )
- {
- /* Make sure the comments are NULL terminated if they exist. */
- memory = p->font->memory;
-
- if ( p->font->comments_len > 0 )
- {
- if ( FT_RENEW_ARRAY( p->font->comments,
- p->font->comments_len,
- p->font->comments_len + 1 ) )
- goto Fail;
-
- p->font->comments[p->font->comments_len] = 0;
- }
- }
- else if ( error == BDF_Err_Ok )
- error = BDF_Err_Invalid_File_Format;
-
- *font = p->font;
-
- Exit:
- if ( p )
- {
- _bdf_list_done( &p->list );
-
- memory = extmemory;
-
- FT_FREE( p );
- }
-
- return error;
-
- Fail:
- bdf_free_font( p->font );
-
- memory = extmemory;
-
- FT_FREE( p->font );
-
- goto Exit;
- }
-
-
- FT_LOCAL_DEF( void )
- bdf_free_font( bdf_font_t* font )
- {
- bdf_property_t* prop;
- unsigned long i;
- bdf_glyph_t* glyphs;
- FT_Memory memory;
-
-
- if ( font == 0 )
- return;
-
- memory = font->memory;
-
- FT_FREE( font->name );
-
- /* Free up the internal hash table of property names. */
- if ( font->internal )
- {
- hash_free( (hashtable *)font->internal, memory );
- FT_FREE( font->internal );
- }
-
- /* Free up the comment info. */
- FT_FREE( font->comments );
-
- /* Free up the properties. */
- for ( i = 0; i < font->props_size; i++ )
- {
- if ( font->props[i].format == BDF_ATOM )
- FT_FREE( font->props[i].value.atom );
- }
-
- FT_FREE( font->props );
-
- /* Free up the character info. */
- for ( i = 0, glyphs = font->glyphs;
- i < font->glyphs_used; i++, glyphs++ )
- {
- FT_FREE( glyphs->name );
- FT_FREE( glyphs->bitmap );
- }
-
- for ( i = 0, glyphs = font->unencoded; i < font->unencoded_used;
- i++, glyphs++ )
- {
- FT_FREE( glyphs->name );
- FT_FREE( glyphs->bitmap );
- }
-
- FT_FREE( font->glyphs );
- FT_FREE( font->unencoded );
-
- /* Free up the overflow storage if it was used. */
- for ( i = 0, glyphs = font->overflow.glyphs;
- i < font->overflow.glyphs_used; i++, glyphs++ )
- {
- FT_FREE( glyphs->name );
- FT_FREE( glyphs->bitmap );
- }
-
- FT_FREE( font->overflow.glyphs );
-
- /* bdf_cleanup */
- hash_free( &(font->proptbl), memory );
-
- /* Free up the user defined properties. */
- for ( prop = font->user_props, i = 0;
- i < font->nuser_props; i++, prop++ )
- {
- FT_FREE( prop->name );
- if ( prop->format == BDF_ATOM )
- FT_FREE( prop->value.atom );
- }
-
- FT_FREE( font->user_props );
-
- /* FREE( font ); */ /* XXX Fixme */
- }
-
-
- FT_LOCAL_DEF( bdf_property_t * )
- bdf_get_font_property( bdf_font_t* font,
- const char* name )
- {
- hashnode hn;
-
-
- if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 )
- return 0;
-
- hn = hash_lookup( name, (hashtable *)font->internal );
-
- return hn ? ( font->props + hn->data ) : 0;
- }
-
-
-/* END */