2 * PostScript driver Type1 font functions
4 * Copyright 2002 Huw D M Davies for CodeWeavers
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(psdrv
);
38 DWORD glyph_sent_size
;
43 #define GLYPH_SENT_INC 128
45 /* Type 1 font commands */
56 #define MS_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
57 ( ( (DWORD)_x4 << 24 ) | \
58 ( (DWORD)_x3 << 16 ) | \
59 ( (DWORD)_x2 << 8 ) | \
62 #ifdef WORDS_BIGENDIAN
63 static inline WORD
get_be_word(const void *p
) { return *(const WORD
*)p
; }
64 static inline DWORD
get_be_dword(const void *p
) { return *(const DWORD
*)p
; }
66 static inline WORD
get_be_word(const void *p
) { return RtlUshortByteSwap(*(const WORD
*)p
); }
67 static inline DWORD
get_be_dword(const void *p
) { return RtlUlongByteSwap(*(const DWORD
*)p
); }
70 TYPE1
*T1_download_header(PHYSDEV dev
, char *ps_name
, RECT
*bbox
, UINT emsize
)
75 static const char dict
[] = /* name, emsquare, fontbbox */
77 " /FontName /%s def\n"
78 " /Encoding 256 array 0 1 255{1 index exch /.notdef put} for def\n"
80 " /FontMatrix [1 %ld div 0 0 1 %ld div 0 0] def\n"
81 " /FontBBox [%ld %ld %ld %ld] def\n"
83 " /Private 7 dict begin\n"
84 " /RD {string currentfile exch readhexstring pop} def\n"
87 " /MinFeature {16 16} def\n"
88 " /BlueValues [] def\n"
89 " /password 5839 def\n"
91 " currentdict end def\n"
92 " currentdict dup /Private get begin\n"
93 " /CharStrings 256 dict begin\n"
94 " /.notdef 4 RD 8b8b0d0e ND\n"
95 " currentdict end put\n"
97 "currentdict end dup /FontName get exch definefont pop\n";
99 t1
= HeapAlloc(GetProcessHeap(), 0, sizeof(*t1
));
102 t1
->glyph_sent_size
= GLYPH_SENT_INC
;
103 t1
->glyph_sent
= HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
,
104 t1
->glyph_sent_size
*
105 sizeof(*(t1
->glyph_sent
)));
107 buf
= HeapAlloc(GetProcessHeap(), 0, sizeof(dict
) + strlen(ps_name
) +
110 sprintf(buf
, dict
, ps_name
, t1
->emsize
, t1
->emsize
,
111 bbox
->left
, bbox
->bottom
, bbox
->right
, bbox
->top
);
113 PSDRV_WriteSpool(dev
, buf
, strlen(buf
));
115 HeapFree(GetProcessHeap(), 0, buf
);
125 static STR
*str_init(int sz
)
127 STR
*str
= HeapAlloc(GetProcessHeap(), 0, sizeof(*str
));
129 str
->str
= HeapAlloc(GetProcessHeap(), 0, str
->max_len
);
134 static void str_free(STR
*str
)
136 HeapFree(GetProcessHeap(), 0, str
->str
);
137 HeapFree(GetProcessHeap(), 0, str
);
140 static void str_add_byte(STR
*str
, BYTE b
)
142 if(str
->len
== str
->max_len
) {
144 str
->str
= HeapReAlloc(GetProcessHeap(), 0, str
->str
, str
->max_len
);
146 str
->str
[str
->len
++] = b
;
149 static void str_add_num(STR
*str
, int num
)
151 if(num
<= 107 && num
>= -107)
152 str_add_byte(str
, num
+ 139);
153 else if(num
>= 108 && num
<= 1131) {
154 str_add_byte(str
, ((num
- 108) >> 8) + 247);
155 str_add_byte(str
, (num
- 108) & 0xff);
156 } else if(num
<= -108 && num
>= -1131) {
158 str_add_byte(str
, ((num
- 108) >> 8) + 251);
159 str_add_byte(str
, (num
- 108) & 0xff);
161 str_add_byte(str
, 0xff);
162 str_add_byte(str
, (num
>> 24) & 0xff);
163 str_add_byte(str
, (num
>> 16) & 0xff);
164 str_add_byte(str
, (num
>> 8) & 0xff);
165 str_add_byte(str
, (num
& 0xff));
169 static void str_add_point(STR
*str
, POINT pt
, POINT
*curpos
)
171 str_add_num(str
, pt
.x
- curpos
->x
);
172 str_add_num(str
, pt
.y
- curpos
->y
);
176 static void str_add_cmd(STR
*str
, enum t1_cmds cmd
)
178 str_add_byte(str
, (BYTE
)cmd
);
181 static int str_get_bytes(STR
*str
, BYTE
**b
)
187 static BOOL
get_hmetrics(HDC hdc
, DWORD index
, short *lsb
, WORD
*advance
)
196 GetFontData(hdc
, MS_MAKE_TAG('h','h','e','a'), 0, hhea
, sizeof(hhea
));
197 num_of_long
= get_be_word(hhea
+ 34);
199 if(index
< num_of_long
)
201 if(GetFontData(hdc
, MS_MAKE_TAG('h','m','t','x'), index
* 4, buf
, 4) != 4) return FALSE
;
202 *advance
= get_be_word(buf
);
203 *lsb
= (signed short)get_be_word(buf
+ 2);
207 if(GetFontData(hdc
, MS_MAKE_TAG('h','m','t','x'), (num_of_long
- 1) * 4, buf
, 2) != 2) return FALSE
;
208 *advance
= get_be_word(buf
);
209 if(GetFontData(hdc
, MS_MAKE_TAG('h','m','t','x'), num_of_long
* 4 + (index
- num_of_long
) * 2, buf
, 2) != 2) return FALSE
;
210 *lsb
= (signed short)get_be_word(buf
);
216 static BOOL
get_glyf_pos(HDC hdc
, DWORD index
, DWORD
*start
, DWORD
*end
)
225 len
= GetFontData(hdc
, MS_MAKE_TAG('h','e','a','d'), 0, NULL
, 0);
226 if (len
== GDI_ERROR
) return FALSE
;
227 head
= HeapAlloc(GetProcessHeap(), 0, len
);
228 GetFontData(hdc
, MS_MAKE_TAG('h','e','a','d'), 0, head
, len
);
229 loca_format
= get_be_word(head
+ 50);
231 len
= GetFontData(hdc
, MS_MAKE_TAG('l','o','c','a'), 0, NULL
, 0);
232 if (len
== GDI_ERROR
)
234 len
= GetFontData(hdc
, MS_MAKE_TAG('C','F','F',' '), 0, NULL
, 0);
235 if (len
!= GDI_ERROR
) FIXME( "CFF tables not supported yet\n" );
236 else ERR( "loca table not found\n" );
237 HeapFree(GetProcessHeap(), 0, head
);
240 loca
= HeapAlloc(GetProcessHeap(), 0, len
);
241 GetFontData(hdc
, MS_MAKE_TAG('l','o','c','a'), 0, loca
, len
);
243 switch(loca_format
) {
245 *start
= get_be_word(((WORD
*)loca
) + index
);
247 *end
= get_be_word(((WORD
*)loca
) + index
+ 1);
252 *start
= get_be_dword(((DWORD
*)loca
) + index
);
253 *end
= get_be_dword(((DWORD
*)loca
) + index
+ 1);
257 ERR("Unknown loca_format %d\n", loca_format
);
260 HeapFree(GetProcessHeap(), 0, loca
);
261 HeapFree(GetProcessHeap(), 0, head
);
266 static BYTE
*get_glyph_data(HDC hdc
, DWORD index
)
268 DWORD start
, end
, len
;
271 if(!get_glyf_pos(hdc
, index
, &start
, &end
))
275 if(!len
) return NULL
;
277 data
= HeapAlloc(GetProcessHeap(), 0, len
);
278 if(!data
) return NULL
;
280 if(GetFontData(hdc
, MS_MAKE_TAG('g','l','y','f'), start
, data
, len
) != len
)
282 HeapFree(GetProcessHeap(), 0, data
);
291 WORD
*end_pts
; /* size_is(num_conts) */
292 BYTE
*flags
; /* size_is(end_pts[num_conts - 1] + 1) */
293 POINT
*pts
; /* size_is(end_pts[num_conts - 1] + 1) */
298 static inline WORD
pts_in_outline(glyph_outline
*outline
)
302 if(outline
->num_conts
)
303 num_pts
= outline
->end_pts
[outline
->num_conts
- 1] + 1;
308 static BOOL
append_glyph_outline(HDC hdc
, DWORD index
, glyph_outline
*outline
);
310 static BOOL
append_simple_glyph(BYTE
*data
, glyph_outline
*outline
)
312 USHORT num_pts
, start_pt
= 0, ins_len
;
314 int num_conts
, start_cont
, i
;
318 start_cont
= outline
->num_conts
;
319 start_pt
= pts_in_outline(outline
);
321 num_conts
= get_be_word(data
);
323 end_pts
= (WORD
*)(data
+ 10);
324 num_pts
= get_be_word(end_pts
+ num_conts
- 1) + 1;
326 ins_len
= get_be_word(end_pts
+ num_conts
);
328 ptr
= (BYTE
*)(end_pts
+ num_conts
) + 2 + ins_len
;
330 if(outline
->num_conts
)
332 outline
->end_pts
= HeapReAlloc(GetProcessHeap(), 0, outline
->end_pts
, (start_cont
+ num_conts
) * sizeof(*outline
->end_pts
));
333 outline
->flags
= HeapReAlloc(GetProcessHeap(), 0, outline
->flags
, start_pt
+ num_pts
);
334 outline
->pts
= HeapReAlloc(GetProcessHeap(), 0, outline
->pts
, (start_pt
+ num_pts
) * sizeof(*outline
->pts
));
338 outline
->end_pts
= HeapAlloc(GetProcessHeap(), 0, num_conts
* sizeof(*outline
->end_pts
));
339 outline
->flags
= HeapAlloc(GetProcessHeap(), 0, num_pts
);
340 outline
->pts
= HeapAlloc(GetProcessHeap(), 0, num_pts
* sizeof(*outline
->pts
));
343 outline
->num_conts
+= num_conts
;
345 for(i
= 0; i
< num_conts
; i
++)
346 outline
->end_pts
[start_cont
+ i
] = start_pt
+ get_be_word(end_pts
+ i
);
348 for(i
= 0; i
< num_pts
; i
++)
350 outline
->flags
[start_pt
+ i
] = *ptr
;
357 outline
->flags
[start_pt
+ i
] = *(ptr
- 1);
366 for(i
= 0; i
< num_pts
; i
++)
371 if(outline
->flags
[start_pt
+ i
] & 2)
374 if((outline
->flags
[start_pt
+ i
] & 0x10) == 0)
377 else if((outline
->flags
[start_pt
+ i
] & 0x10) == 0)
379 delta
= (signed short)get_be_word(ptr
);
383 outline
->pts
[start_pt
+ i
].x
= x
;
387 for(i
= 0; i
< num_pts
; i
++)
392 if(outline
->flags
[start_pt
+ i
] & 4)
395 if((outline
->flags
[start_pt
+ i
] & 0x20) == 0)
398 else if((outline
->flags
[start_pt
+ i
] & 0x20) == 0)
400 delta
= (signed short)get_be_word(ptr
);
404 outline
->pts
[start_pt
+ i
].y
= y
;
409 /* Some flags for composite glyphs. See glyf table in OT spec */
410 #define ARG_1_AND_2_ARE_WORDS (1L << 0)
411 #define ARGS_ARE_XY_VALUES (1L << 1)
412 #define WE_HAVE_A_SCALE (1L << 3)
413 #define MORE_COMPONENTS (1L << 5)
414 #define WE_HAVE_AN_X_AND_Y_SCALE (1L << 6)
415 #define WE_HAVE_A_TWO_BY_TWO (1L << 7)
416 #define USE_MY_METRICS (1L << 9)
418 static BOOL
append_complex_glyph(HDC hdc
, const BYTE
*data
, glyph_outline
*outline
)
420 const BYTE
*ptr
= data
;
423 FLOAT scale_xx
= 1, scale_xy
= 0, scale_yx
= 0, scale_yy
= 1;
424 WORD start_pt
, end_pt
;
429 flags
= get_be_word(ptr
);
431 index
= get_be_word(ptr
);
433 if(flags
& ARG_1_AND_2_ARE_WORDS
)
435 arg1
= (short)get_be_word(ptr
);
437 arg2
= (short)get_be_word(ptr
);
442 arg1
= *(const char*)ptr
++;
443 arg2
= *(const char*)ptr
++;
445 if(flags
& WE_HAVE_A_SCALE
)
447 scale_xx
= scale_yy
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
450 else if(flags
& WE_HAVE_AN_X_AND_Y_SCALE
)
452 scale_xx
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
454 scale_yy
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
457 else if(flags
& WE_HAVE_A_TWO_BY_TWO
)
459 scale_xx
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
461 scale_xy
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
463 scale_yx
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
465 scale_yy
= (FLOAT
)(short)get_be_word(ptr
) / 0x4000;
469 start_pt
= pts_in_outline(outline
);
470 append_glyph_outline(hdc
, index
, outline
);
471 end_pt
= pts_in_outline(outline
);
473 if (flags
& (WE_HAVE_A_SCALE
| WE_HAVE_AN_X_AND_Y_SCALE
| WE_HAVE_A_TWO_BY_TWO
))
476 TRACE("transform %f,%f,%f,%f of glyph %x\n", scale_xx
, scale_xy
, scale_yx
, scale_yy
, index
);
477 for (i
= start_pt
; i
< end_pt
; i
++)
479 LONG x
= outline
->pts
[i
].x
, y
= outline
->pts
[i
].y
;
480 outline
->pts
[i
].x
= x
* scale_xx
+ y
* scale_yx
;
481 outline
->pts
[i
].y
= x
* scale_xy
+ y
* scale_yy
;
485 if((flags
& ARGS_ARE_XY_VALUES
) == 0)
487 WORD orig_pt
= arg1
, new_pt
= arg2
;
490 if(orig_pt
>= start_pt
|| new_pt
>= end_pt
) return FALSE
;
492 arg1
= outline
->pts
[orig_pt
].x
- outline
->pts
[new_pt
].x
;
493 arg2
= outline
->pts
[orig_pt
].y
- outline
->pts
[new_pt
].y
;
495 while(start_pt
< end_pt
)
497 outline
->pts
[start_pt
].x
+= arg1
;
498 outline
->pts
[start_pt
].y
+= arg2
;
502 if(flags
& USE_MY_METRICS
)
503 get_hmetrics(hdc
, index
, &outline
->lsb
, &outline
->advance
);
505 } while(flags
& MORE_COMPONENTS
);
509 static BOOL
append_glyph_outline(HDC hdc
, DWORD index
, glyph_outline
*outline
)
514 glyph_data
= get_glyph_data(hdc
, index
);
515 if(!glyph_data
) return TRUE
;
517 num_conts
= get_be_word(glyph_data
);
520 append_complex_glyph(hdc
, glyph_data
, outline
);
521 else if(num_conts
> 0)
522 append_simple_glyph(glyph_data
, outline
);
524 HeapFree(GetProcessHeap(), 0, glyph_data
);
528 static inline BOOL
on_point(const glyph_outline
*outline
, WORD pt
)
530 return outline
->flags
[pt
] & 1;
533 BOOL
T1_download_glyph(PHYSDEV dev
, DOWNLOAD
*pdl
, DWORD index
, char *glyph_name
)
542 glyph_outline outline
;
544 static const char glyph_def_begin
[] =
546 "/Private get begin\n"
547 "/CharStrings get begin\n"
549 static const char glyph_def_end
[] =
553 TRACE("%ld %s\n", index
, glyph_name
);
554 assert(pdl
->type
== Type1
);
555 t1
= pdl
->typeinfo
.Type1
;
557 if(index
< t1
->glyph_sent_size
) {
558 if(t1
->glyph_sent
[index
])
561 t1
->glyph_sent_size
= (index
/ GLYPH_SENT_INC
+ 1) * GLYPH_SENT_INC
;
562 t1
->glyph_sent
= HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY
,
564 t1
->glyph_sent_size
* sizeof(*(t1
->glyph_sent
)));
567 outline
.num_conts
= 0;
568 outline
.flags
= NULL
;
569 outline
.end_pts
= NULL
;
571 get_hmetrics(dev
->hdc
, index
, &outline
.lsb
, &outline
.advance
);
573 if(!append_glyph_outline(dev
->hdc
, index
, &outline
)) return FALSE
;
575 charstring
= str_init(100);
576 curpos
.x
= outline
.lsb
;
579 str_add_num(charstring
, curpos
.x
);
580 str_add_num(charstring
, outline
.advance
);
581 str_add_cmd(charstring
, hsbw
);
583 for(cur_pt
= 0, cont
= 0; cont
< outline
.num_conts
; cont
++)
585 POINT start_pos
= outline
.pts
[cur_pt
++];
586 WORD end_pt
= outline
.end_pts
[cont
];
587 POINT curve_pts
[3] = {{0,0},{0,0},{0,0}};
589 str_add_point(charstring
, start_pos
, &curpos
);
590 str_add_cmd(charstring
, rmoveto
);
592 for(; cur_pt
<= end_pt
; cur_pt
++)
594 if(on_point(&outline
, cur_pt
))
596 str_add_point(charstring
, outline
.pts
[cur_pt
], &curpos
);
597 str_add_cmd(charstring
, rlineto
);
601 BOOL added_next
= FALSE
;
603 /* temporarily store the start pt in curve_pts[0] */
604 if(on_point(&outline
, cur_pt
- 1))
605 curve_pts
[0] = outline
.pts
[cur_pt
- 1];
606 else /* last pt was off curve too, so the previous curve's
607 end pt was constructed */
608 curve_pts
[0] = curve_pts
[2];
612 if(on_point(&outline
, cur_pt
+ 1))
614 curve_pts
[2] = outline
.pts
[cur_pt
+ 1];
617 else /* next pt is off curve too, so construct the end pt from the
618 average of the two */
620 curve_pts
[2].x
= (outline
.pts
[cur_pt
].x
+ outline
.pts
[cur_pt
+ 1].x
+ 1) / 2;
621 curve_pts
[2].y
= (outline
.pts
[cur_pt
].y
+ outline
.pts
[cur_pt
+ 1].y
+ 1) / 2;
624 else /* last pt of the contour is off curve, so the end pt is the
625 start pt of the contour */
626 curve_pts
[2] = start_pos
;
628 curve_pts
[0].x
= (curve_pts
[0].x
+ 2 * outline
.pts
[cur_pt
].x
+ 1) / 3;
629 curve_pts
[0].y
= (curve_pts
[0].y
+ 2 * outline
.pts
[cur_pt
].y
+ 1) / 3;
631 curve_pts
[1].x
= (curve_pts
[2].x
+ 2 * outline
.pts
[cur_pt
].x
+ 1) / 3;
632 curve_pts
[1].y
= (curve_pts
[2].y
+ 2 * outline
.pts
[cur_pt
].y
+ 1) / 3;
634 str_add_point(charstring
, curve_pts
[0], &curpos
);
635 str_add_point(charstring
, curve_pts
[1], &curpos
);
636 str_add_point(charstring
, curve_pts
[2], &curpos
);
637 str_add_cmd(charstring
, rrcurveto
);
638 if(added_next
) cur_pt
++;
641 str_add_cmd(charstring
, closepath
);
643 str_add_cmd(charstring
, endchar
);
645 HeapFree(GetProcessHeap(), 0, outline
.pts
);
646 HeapFree(GetProcessHeap(), 0, outline
.end_pts
);
647 HeapFree(GetProcessHeap(), 0, outline
.flags
);
649 buf
= HeapAlloc(GetProcessHeap(), 0, sizeof(glyph_def_begin
) +
650 strlen(pdl
->ps_name
) + strlen(glyph_name
) + 100);
652 sprintf(buf
, "%%%%glyph %04lx\n", index
);
653 PSDRV_WriteSpool(dev
, buf
, strlen(buf
));
655 len
= str_get_bytes(charstring
, &bytes
);
656 sprintf(buf
, glyph_def_begin
, pdl
->ps_name
, glyph_name
, len
);
657 PSDRV_WriteSpool(dev
, buf
, strlen(buf
));
658 PSDRV_WriteBytes(dev
, bytes
, len
);
659 sprintf(buf
, glyph_def_end
);
660 PSDRV_WriteSpool(dev
, buf
, strlen(buf
));
661 str_free(charstring
);
663 t1
->glyph_sent
[index
] = TRUE
;
664 HeapFree(GetProcessHeap(), 0, buf
);
668 void T1_free(TYPE1
*t1
)
670 HeapFree(GetProcessHeap(), 0, t1
->glyph_sent
);
671 HeapFree(GetProcessHeap(), 0, t1
);