2 * Adobe Font Metric (AFM) file parsing
3 * See http://www.adobe.com/supportservice/devrelations/PDFS/TN/5004.AFM_Spec.pdf
5 * Copyright 1998 Huw D M Davies
11 #include "winnt.h" /* HEAP_ZERO_MEMORY */
18 /* ptr to fonts for which we have afm files */
19 FONTFAMILY
*PSDRV_AFMFontList
= NULL
;
22 /***********************************************************
24 * PSDRV_AFMGetCharMetrics
26 * Parses CharMetric section of AFM file.
28 * Actually only collects the widths of numbered chars and puts then in
31 static void PSDRV_AFMGetCharMetrics(AFM
*afm
, FILE *fp
)
33 char line
[256], valbuf
[256];
34 char *cp
, *item
, *value
, *curpos
, *endpos
;
36 AFMMETRICS
**insert
= &afm
->Metrics
, *metric
;
38 for(i
= 0; i
< afm
->NumofMetrics
; i
++) {
40 if(!fgets(line
, sizeof(line
), fp
)) {
41 ERR(psdrv
, "Unexpected EOF\n");
45 metric
= *insert
= HeapAlloc( PSDRV_Heap
, HEAP_ZERO_MEMORY
,
47 insert
= &metric
->next
;
49 cp
= line
+ strlen(line
);
53 } while(cp
> line
&& isspace(*cp
));
60 value
= strpbrk(item
, " \t");
61 while(isspace(*value
))
63 cp
= endpos
= strchr(value
, ';');
66 memcpy(valbuf
, value
, cp
- value
+ 1);
67 valbuf
[cp
- value
+ 1] = '\0';
70 if(!strncmp(item
, "C ", 2)) {
71 value
= strchr(item
, ' ');
72 sscanf(value
, " %d", &metric
->C
);
74 } else if(!strncmp(item
, "CH ", 3)) {
75 value
= strrchr(item
, ' ');
76 sscanf(value
, " %x", &metric
->C
);
79 else if(!strncmp("WX ", item
, 3) || !strncmp("W0X ", item
, 4)) {
80 sscanf(value
, "%f", &metric
->WX
);
81 if(metric
->C
>= 0 && metric
->C
<= 0xff)
82 afm
->CharWidths
[metric
->C
] = metric
->WX
;
85 else if(!strncmp("N ", item
, 2)) {
86 metric
->N
= HEAP_strdupA( PSDRV_Heap
, 0, value
);
89 else if(!strncmp("B ", item
, 2)) {
90 sscanf(value
, "%f%f%f%f", &metric
->B
.llx
, &metric
->B
.lly
,
91 &metric
->B
.urx
, &metric
->B
.ury
);
93 /* Store height of Aring to use as lfHeight */
94 if(metric
->N
&& !strncmp(metric
->N
, "Aring", 5))
95 afm
->FullAscender
= metric
->B
.ury
;
98 /* Ligatures go here... */
104 TRACE(psdrv
, "Metrics for '%s' WX = %f B = %f,%f - %f,%f\n",
105 metric
->N
, metric
->WX
, metric
->B
.llx
, metric
->B
.lly
,
106 metric
->B
.urx
, metric
->B
.ury
);
113 /***********************************************************
117 * Fills out an AFM structure and associated substructures (see psdrv.h)
118 * for a given AFM file. All memory is allocated from the process heap.
119 * Returns a ptr to the AFM structure or NULL on error.
121 * This is not complete (we don't handle kerning yet) and not efficient
123 static AFM
*PSDRV_AFMParse(char const *file
)
131 TRACE(psdrv
, "parsing '%s'\n", file
);
133 if((fp
= fopen(file
, "r")) == NULL
) {
134 MSG("Can't open AFM file '%s'. Please check wine.conf .\n", file
);
138 afm
= HeapAlloc(PSDRV_Heap
, HEAP_ZERO_MEMORY
, sizeof(AFM
));
144 while(fgets(buf
, sizeof(buf
), fp
)) {
145 cp
= buf
+ strlen(buf
);
149 } while(cp
> buf
&& isspace(*cp
));
151 value
= strchr(buf
, ' ');
153 while(isspace(*value
))
156 if(!strncmp("FontName", buf
, 8)) {
157 afm
->FontName
= HEAP_strdupA(PSDRV_Heap
, 0, value
);
161 if(!strncmp("FullName", buf
, 8)) {
162 afm
->FullName
= HEAP_strdupA(PSDRV_Heap
, 0, value
);
166 if(!strncmp("FamilyName", buf
, 10)) {
167 afm
->FamilyName
= HEAP_strdupA(PSDRV_Heap
, 0, value
);
171 if(!strncmp("Weight", buf
, 6)) {
172 if(!strncmp("Roman", value
, 5) || !strncmp("Medium", value
, 6)
173 || !strncmp("Book", value
, 4))
174 afm
->Weight
= FW_NORMAL
;
175 else if(!strncmp("Demi", value
, 4))
176 afm
->Weight
= FW_DEMIBOLD
;
177 else if(!strncmp("Bold", value
, 4))
178 afm
->Weight
= FW_BOLD
;
179 else if(!strncmp("Light", value
, 5))
180 afm
->Weight
= FW_LIGHT
;
182 FIXME(psdrv
, "Unkown AFM Weight '%s'\n", value
);
183 afm
->Weight
= FW_NORMAL
;
188 if(!strncmp("ItalicAngle", buf
, 11)) {
189 sscanf(value
, "%f", &(afm
->ItalicAngle
));
193 if(!strncmp("IsFixedPitch", buf
, 12)) {
194 if(!strncasecmp("false", value
, 5))
195 afm
->IsFixedPitch
= FALSE
;
197 afm
->IsFixedPitch
= TRUE
;
201 if(!strncmp("FontBBox", buf
, 8)) {
202 sscanf(value
, "%f %f %f %f", &(afm
->FontBBox
.llx
),
203 &(afm
->FontBBox
.lly
), &(afm
->FontBBox
.urx
),
204 &(afm
->FontBBox
.ury
) );
208 if(!strncmp("UnderlinePosition", buf
, 17)) {
209 sscanf(value
, "%f", &(afm
->UnderlinePosition
) );
213 if(!strncmp("UnderlineThickness", buf
, 18)) {
214 sscanf(value
, "%f", &(afm
->UnderlineThickness
) );
218 if(!strncmp("CapHeight", buf
, 9)) {
219 sscanf(value
, "%f", &(afm
->CapHeight
) );
223 if(!strncmp("XHeight", buf
, 7)) {
224 sscanf(value
, "%f", &(afm
->XHeight
) );
228 if(!strncmp("Ascender", buf
, 8)) {
229 sscanf(value
, "%f", &(afm
->Ascender
) );
233 if(!strncmp("Descender", buf
, 9)) {
234 sscanf(value
, "%f", &(afm
->Descender
) );
238 if(!strncmp("StartCharMetrics", buf
, 16)) {
239 sscanf(value
, "%d", &(afm
->NumofMetrics
) );
240 PSDRV_AFMGetCharMetrics(afm
, fp
);
244 if(!strncmp("EncodingScheme", buf
, 14)) {
245 afm
->EncodingScheme
= HEAP_strdupA(PSDRV_Heap
, 0, value
);
252 if(afm
->Ascender
== 0.0)
253 afm
->Ascender
= afm
->FontBBox
.ury
;
254 if(afm
->Descender
== 0.0)
255 afm
->Descender
= afm
->FontBBox
.lly
;
256 if(afm
->FullAscender
== 0.0)
257 afm
->FullAscender
= afm
->Ascender
;
262 /***********************************************************
266 * Frees the family and afmlistentry structures in list head
268 void PSDRV_FreeAFMList( FONTFAMILY
*head
)
270 AFMLISTENTRY
*afmle
, *nexta
;
271 FONTFAMILY
*family
, *nextf
;
273 for(nextf
= family
= head
; nextf
; family
= nextf
) {
274 for(nexta
= afmle
= family
->afmlist
; nexta
; afmle
= nexta
) {
276 HeapFree( PSDRV_Heap
, 0, afmle
);
278 nextf
= family
->next
;
279 HeapFree( PSDRV_Heap
, 0, family
);
285 /***********************************************************
287 * PSDRV_FindAFMinList
288 * Returns ptr to an AFM if name (which is a PS font name) exists in list
291 AFM
*PSDRV_FindAFMinList(FONTFAMILY
*head
, char *name
)
296 for(family
= head
; family
; family
= family
->next
) {
297 for(afmle
= family
->afmlist
; afmle
; afmle
= afmle
->next
) {
298 if(!strcmp(afmle
->afm
->FontName
, name
))
305 /***********************************************************
309 * Adds an afm to the list whose head is pointed to by head. Creates new
310 * family node if necessary and always creates a new AFMLISTENTRY.
312 void PSDRV_AddAFMtoList(FONTFAMILY
**head
, AFM
*afm
)
314 FONTFAMILY
*family
= *head
;
315 FONTFAMILY
**insert
= head
;
316 AFMLISTENTRY
*tmpafmle
, *newafmle
;
318 newafmle
= HeapAlloc(PSDRV_Heap
, HEAP_ZERO_MEMORY
,
323 if(!strcmp(family
->FamilyName
, afm
->FamilyName
))
325 insert
= &(family
->next
);
326 family
= family
->next
;
330 family
= HeapAlloc(PSDRV_Heap
, HEAP_ZERO_MEMORY
,
333 family
->FamilyName
= HEAP_strdupA(PSDRV_Heap
, 0,
335 family
->afmlist
= newafmle
;
339 tmpafmle
= family
->afmlist
;
340 while(tmpafmle
->next
)
341 tmpafmle
= tmpafmle
->next
;
343 tmpafmle
->next
= newafmle
;
348 /**********************************************************
350 * PSDRV_ReencodeCharWidths
352 * Re map the CharWidths field of the afm to correspond to an ANSI encoding
355 static void PSDRV_ReencodeCharWidths(AFM
*afm
)
360 for(i
= 0; i
< 256; i
++) {
363 if(PSDRV_ANSIVector
[i
] == NULL
) {
364 afm
->CharWidths
[i
] = 0.0;
367 for(metric
= afm
->Metrics
; metric
; metric
= metric
->next
) {
368 if(!strcmp(metric
->N
, PSDRV_ANSIVector
[i
])) {
369 afm
->CharWidths
[i
] = metric
->WX
;
374 WARN(psdrv
, "Couldn't find glyph '%s' in font '%s'\n",
375 PSDRV_ANSIVector
[i
], afm
->FontName
);
376 afm
->CharWidths
[i
] = 0.0;
382 /***********************************************************
384 * PSDRV_afmfilesCallback
386 * Callback for PROFILE_EnumerateWineIniSection
387 * Try to parse AFM file `value', alter the CharWidths field of afm struct if
388 * the font is using AdobeStandardEncoding to correspond to WinANSI, then add
389 * afm to system font list.
391 static void PSDRV_afmfilesCallback(char const *key
, char const *value
,
396 afm
= PSDRV_AFMParse(value
);
398 if(afm
->EncodingScheme
&&
399 !strcmp(afm
->EncodingScheme
, "AdobeStandardEncoding")) {
400 PSDRV_ReencodeCharWidths(afm
);
402 PSDRV_AddAFMtoList(&PSDRV_AFMFontList
, afm
);
408 /***********************************************************
413 static void PSDRV_DumpFontList(void)
418 for(family
= PSDRV_AFMFontList
; family
; family
= family
->next
) {
419 TRACE(psdrv
, "Family '%s'\n", family
->FamilyName
);
420 for(afmle
= family
->afmlist
; afmle
; afmle
= afmle
->next
) {
421 TRACE(psdrv
, "\tFontName '%s'\n", afmle
->afm
->FontName
);
428 /***********************************************************
430 * PSDRV_GetFontMetrics
432 * Only exported function in this file. Parses all afm files listed in
433 * [afmfiles] of wine.conf .
435 BOOL32
PSDRV_GetFontMetrics(void)
437 PROFILE_EnumerateWineIniSection( "afmfiles", PSDRV_afmfilesCallback
, NULL
);
438 PSDRV_DumpFontList();