4 * Copyright (C) 2011-2013 by Werner Lemberg.
6 * This file is part of the ttfautohint library, and may only be used,
7 * modified, and distributed under the terms given in `COPYING'. By
8 * continuing to use, modify, or distribute this file you indicate that you
9 * have read `COPYING' and understand and accept it fully.
11 * The file `COPYING' mentioned in the previous paragraph is distributed
12 * with the ttfautohint library.
21 #define MISSING (FT_UShort)~0
29 int _ta_debug_disable_horz_hints
;
30 int _ta_debug_disable_vert_hints
;
31 int _ta_debug_disable_blue_hints
;
32 void* _ta_debug_hints
;
36 typedef struct Hints_Record_
44 typedef struct Recorder_
47 GLYPH
* glyph
; /* the current glyph */
48 Hints_Record hints_record
;
50 /* some segments can `wrap around' */
51 /* a contour's start point like 24-25-26-0-1-2 */
52 /* (there can be at most one such segment per contour); */
53 /* later on we append additional records */
54 /* to split them into 24-26 and 0-2 */
55 FT_UShort
* wrap_around_segments
;
56 FT_UShort num_wrap_around_segments
;
58 FT_UShort num_stack_elements
; /* the necessary stack depth so far */
60 /* data necessary for strong point interpolation */
61 FT_UShort
* ip_before_points
;
62 FT_UShort
* ip_after_points
;
63 FT_UShort
* ip_on_point_array
;
64 FT_UShort
* ip_between_point_array
;
66 FT_UShort num_strong_points
;
67 FT_UShort num_segments
;
71 /* this is the bytecode of the `.ttfautohint' glyph */
73 FT_Byte ttfautohint_glyph_bytecode
[7] =
76 /* increment `cvtl_is_subglyph' counter */
89 * convert array `args' into a sequence of NPUSHB, NPUSHW, PUSHB_X, and
90 * PUSHW_X instructions to be stored in `bufp' (the latter two instructions
91 * only if `optimize' is not set); if `need_words' is set, NPUSHW and
96 TA_build_push(FT_Byte
* bufp
,
108 for (i
= 0; i
< num_args
; i
+= 255)
110 nargs
= (num_args
- i
> 255) ? 255 : num_args
- i
;
112 if (optimize
&& nargs
<= 8)
113 BCI(PUSHW_1
- 1 + nargs
);
119 for (j
= 0; j
< nargs
; j
++)
129 for (i
= 0; i
< num_args
; i
+= 255)
131 nargs
= (num_args
- i
> 255) ? 255 : num_args
- i
;
133 if (optimize
&& nargs
<= 8)
134 BCI(PUSHB_1
- 1 + nargs
);
140 for (j
= 0; j
< nargs
; j
++)
152 /* We add a subglyph for each composite glyph. */
153 /* Since subglyphs must contain at least one point, */
154 /* we have to adjust all point indices accordingly. */
155 /* Using the `pointsums' array of the `GLYPH' structure */
156 /* it is straightforward to do that: */
157 /* Assuming that point with index x is in the interval */
158 /* pointsums[n] <= x < pointsums[n + 1], */
159 /* the new point index is x + n. */
162 TA_adjust_point_index(Recorder
* recorder
,
165 FONT
* font
= recorder
->font
;
166 GLYPH
* glyph
= recorder
->glyph
;
170 if (!glyph
->num_components
|| !font
->hint_composites
)
171 return idx
; /* not a composite glyph */
173 for (i
= 0; i
< glyph
->num_pointsums
; i
++)
174 if (idx
< glyph
->pointsums
[i
])
181 /* we store the segments in the storage area; */
182 /* each segment record consists of the first and last point */
185 TA_sfnt_build_glyph_segments(SFNT
* sfnt
,
190 FONT
* font
= recorder
->font
;
191 TA_GlyphHints hints
= &font
->loader
->hints
;
192 TA_AxisHints axis
= &hints
->axis
[TA_DIMENSION_VERT
];
193 TA_Point points
= hints
->points
;
194 TA_Segment segments
= axis
->segments
;
196 TA_Segment seg_limit
;
198 FT_Outline outline
= font
->loader
->gloader
->base
.outline
;
203 FT_UShort num_segments
;
205 FT_Bool need_words
= 0;
209 FT_UShort num_packed_segments
;
210 FT_UShort num_storage
;
211 FT_UShort num_stack_elements
;
212 FT_UShort num_twilight_points
;
215 seg_limit
= segments
+ axis
->num_segments
;
216 num_segments
= axis
->num_segments
;
218 /* to pack the data in the bytecode more tightly, */
219 /* we store up to the first nine segments in nibbles if possible, */
220 /* using delta values */
222 num_packed_segments
= 0;
223 for (seg
= segments
; seg
< seg_limit
; seg
++)
225 FT_UInt first
= seg
->first
- points
;
226 FT_UInt last
= seg
->last
- points
;
229 first
= TA_adjust_point_index(recorder
, first
);
230 last
= TA_adjust_point_index(recorder
, last
);
232 if (first
- base
>= 16)
234 if (first
> last
|| last
- first
>= 16)
236 if (num_packed_segments
== 9)
238 num_packed_segments
++;
242 /* also handle wrap-around segments */
243 num_segments
+= recorder
->num_wrap_around_segments
;
245 /* wrap-around segments are pushed with four arguments; */
246 /* a segment stored in nibbles needs only one byte instead of two */
247 num_args
= num_packed_segments
248 + 2 * (num_segments
- num_packed_segments
)
249 + 2 * recorder
->num_wrap_around_segments
252 /* collect all arguments temporarily in an array (in reverse order) */
253 /* so that we can easily split into chunks of 255 args */
254 /* as needed by NPUSHB and NPUSHW, respectively */
255 args
= (FT_UInt
*)malloc(num_args
* sizeof (FT_UInt
));
259 arg
= args
+ num_args
- 1;
261 if (num_segments
> 0xFF)
264 /* the number of packed segments is indicated by the function number */
265 if (recorder
->glyph
->num_components
&& font
->hint_composites
)
266 *(arg
--) = bci_create_segments_composite_0
+ num_packed_segments
;
268 *(arg
--) = bci_create_segments_0
+ num_packed_segments
;
269 *(arg
--) = num_segments
;
272 for (seg
= segments
; seg
< segments
+ num_packed_segments
; seg
++)
274 FT_UInt first
= seg
->first
- points
;
275 FT_UInt last
= seg
->last
- points
;
280 first
= TA_adjust_point_index(recorder
, first
);
281 last
= TA_adjust_point_index(recorder
, last
);
283 low_nibble
= first
- base
;
284 high_nibble
= last
- first
;
286 *(arg
--) = 16 * high_nibble
+ low_nibble
;
291 for (seg
= segments
+ num_packed_segments
; seg
< seg_limit
; seg
++)
293 FT_UInt first
= seg
->first
- points
;
294 FT_UInt last
= seg
->last
- points
;
297 *(arg
--) = TA_adjust_point_index(recorder
, first
);
298 *(arg
--) = TA_adjust_point_index(recorder
, last
);
300 /* we push the last and first contour point */
301 /* as a third and fourth argument in wrap-around segments */
304 for (n
= 0; n
< outline
.n_contours
; n
++)
306 FT_UInt end
= (FT_UInt
)outline
.contours
[n
];
311 *(arg
--) = TA_adjust_point_index(recorder
, end
);
316 *(arg
--) = TA_adjust_point_index(recorder
, 0);
318 *(arg
--) = TA_adjust_point_index(recorder
,
319 (FT_UInt
)outline
.contours
[n
- 1] + 1);
329 /* emit the second part of wrap-around segments as separate segments */
330 /* so that edges can easily link to them */
331 for (seg
= segments
; seg
< seg_limit
; seg
++)
333 FT_UInt first
= seg
->first
- points
;
334 FT_UInt last
= seg
->last
- points
;
339 for (n
= 0; n
< outline
.n_contours
; n
++)
341 if (first
<= (FT_UInt
)outline
.contours
[n
])
344 *(arg
--) = TA_adjust_point_index(recorder
, 0);
346 *(arg
--) = TA_adjust_point_index(recorder
,
347 (FT_UInt
)outline
.contours
[n
- 1] + 1);
352 *(arg
--) = TA_adjust_point_index(recorder
, last
);
356 /* with most fonts it is very rare */
357 /* that any of the pushed arguments is larger than 0xFF, */
358 /* thus we refrain from further optimizing this case */
359 bufp
= TA_build_push(bufp
, args
, num_args
, need_words
, optimize
);
363 num_storage
= sal_segment_offset
+ num_segments
* 2;
364 if (num_storage
> sfnt
->max_storage
)
365 sfnt
->max_storage
= num_storage
;
367 num_twilight_points
= num_segments
* 2;
368 if (num_twilight_points
> sfnt
->max_twilight_points
)
369 sfnt
->max_twilight_points
= num_twilight_points
;
371 /* both this function and `TA_emit_hints_record' */
372 /* push data onto the stack */
373 num_stack_elements
= ADDITIONAL_STACK_ELEMENTS
374 + recorder
->num_stack_elements
+ num_args
;
375 if (num_stack_elements
> sfnt
->max_stack_elements
)
376 sfnt
->max_stack_elements
= num_stack_elements
;
385 TA_sfnt_build_glyph_scaler(SFNT
* sfnt
,
389 FONT
* font
= recorder
->font
;
390 FT_GlyphSlot glyph
= sfnt
->face
->glyph
;
391 FT_Vector
* points
= glyph
->outline
.points
;
392 FT_Int num_contours
= glyph
->outline
.n_contours
;
398 FT_Bool need_words
= 0;
401 FT_UShort num_stack_elements
;
404 num_args
= 2 * num_contours
+ 2;
406 /* collect all arguments temporarily in an array (in reverse order) */
407 /* so that we can easily split into chunks of 255 args */
408 /* as needed by NPUSHB and NPUSHW, respectively */
409 args
= (FT_UInt
*)malloc(num_args
* sizeof (FT_UInt
));
413 arg
= args
+ num_args
- 1;
418 if (recorder
->glyph
->num_components
&& font
->hint_composites
)
419 *(arg
--) = bci_scale_composite_glyph
;
421 *(arg
--) = bci_scale_glyph
;
422 *(arg
--) = num_contours
;
427 for (p
= 0; p
< num_contours
; p
++)
433 end
= glyph
->outline
.contours
[p
];
435 for (q
= start
; q
<= end
; q
++)
437 if (points
[q
].y
< points
[min
].y
)
439 if (points
[q
].y
> points
[max
].y
)
445 *(arg
--) = TA_adjust_point_index(recorder
, max
);
446 *(arg
--) = TA_adjust_point_index(recorder
, min
);
450 *(arg
--) = TA_adjust_point_index(recorder
, min
);
451 *(arg
--) = TA_adjust_point_index(recorder
, max
);
460 /* with most fonts it is very rare */
461 /* that any of the pushed arguments is larger than 0xFF, */
462 /* thus we refrain from further optimizing this case */
463 bufp
= TA_build_push(bufp
, args
, num_args
, need_words
, 1);
467 num_stack_elements
= ADDITIONAL_STACK_ELEMENTS
+ num_args
;
468 if (num_stack_elements
> sfnt
->max_stack_elements
)
469 sfnt
->max_stack_elements
= num_stack_elements
;
478 TA_font_build_subglyph_shifter(FONT
* font
,
481 FT_Face face
= font
->loader
->face
;
482 FT_GlyphSlot glyph
= face
->glyph
;
484 TA_GlyphLoader gloader
= font
->loader
->gloader
;
486 TA_SubGlyph subglyphs
= gloader
->base
.subglyphs
;
487 TA_SubGlyph subglyph_limit
= subglyphs
+ gloader
->base
.num_subglyphs
;
488 TA_SubGlyph subglyph
;
490 FT_Int curr_contour
= 0;
493 for (subglyph
= subglyphs
; subglyph
< subglyph_limit
; subglyph
++)
497 FT_UShort flags
= subglyph
->flags
;
498 FT_Pos y_offset
= subglyph
->arg2
;
503 /* load subglyph to get the number of contours */
504 error
= FT_Load_Glyph(face
, subglyph
->index
, FT_LOAD_NO_SCALE
);
507 num_contours
= glyph
->outline
.n_contours
;
509 /* nothing to do if there is a point-to-point alignment */
510 if (!(flags
& FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES
))
513 /* nothing to do if y offset is zero */
517 /* nothing to do if there are no contours */
521 /* note that calling `FT_Load_Glyph' without FT_LOAD_NO_RECURSE */
522 /* ensures that composite subglyphs are represented as simple glyphs */
524 if (num_contours
> 0xFF
525 || curr_contour
> 0xFF)
528 BCI(HIGH(curr_contour
));
529 BCI(LOW(curr_contour
));
530 BCI(HIGH(num_contours
));
531 BCI(LOW(num_contours
));
540 /* there are high chances that this value needs PUSHW, */
541 /* thus we handle it separately */
542 if (y_offset
> 0xFF || y_offset
< 0)
555 BCI(bci_shift_subglyph
);
559 curr_contour
+= num_contours
;
567 * The four `ta_ip_*' actions in the `TA_hints_recorder' callback store its
568 * data in four arrays (which are simple but waste a lot of memory). The
569 * function below converts them into bytecode.
571 * For `ta_ip_before' and `ta_ip_after', the collected points are emitted
572 * together with the edge they correspond to.
574 * For both `ta_ip_on' and `ta_ip_between', an outer loop is constructed to
575 * loop over the edge or edge pairs, respectively, and each edge or edge
576 * pair contains an inner loop to emit the correponding points.
580 TA_build_point_hints(Recorder
* recorder
,
583 TA_AxisHints axis
= &hints
->axis
[TA_DIMENSION_VERT
];
584 TA_Segment segments
= axis
->segments
;
585 TA_Edge edges
= axis
->edges
;
589 FT_Byte
* p
= recorder
->hints_record
.buf
;
590 FT_UShort num_edges
= axis
->num_edges
;
591 FT_UShort num_strong_points
= recorder
->num_strong_points
;
605 /* we store everything as 16bit numbers; */
606 /* the function numbers (`ta_ip_before', etc.) */
607 /* reflect the order in the TA_Action enumeration */
609 /* ip_before_points */
612 ip
= recorder
->ip_before_points
;
613 ip_limit
= ip
+ num_strong_points
;
614 for (; ip
< ip_limit
; ip
++)
624 recorder
->hints_record
.num_actions
++;
629 *(p
++) = (FT_Byte
)ta_ip_before
+ ACTION_OFFSET
;
630 *(p
++) = HIGH(edge
->first
- segments
);
631 *(p
++) = LOW(edge
->first
- segments
);
635 ip
= recorder
->ip_before_points
;
637 for (; ip
< ip_limit
; ip
++)
639 FT_UInt point
= TA_adjust_point_index(recorder
, *ip
);
642 *(p
++) = HIGH(point
);
647 /* ip_after_points */
650 ip
= recorder
->ip_after_points
;
651 ip_limit
= ip
+ num_strong_points
;
652 for (; ip
< ip_limit
; ip
++)
662 recorder
->hints_record
.num_actions
++;
664 edge
= edges
+ axis
->num_edges
- 1;
667 *(p
++) = (FT_Byte
)ta_ip_after
+ ACTION_OFFSET
;
668 *(p
++) = HIGH(edge
->first
- segments
);
669 *(p
++) = LOW(edge
->first
- segments
);
673 ip
= recorder
->ip_after_points
;
675 for (; ip
< ip_limit
; ip
++)
677 FT_UInt point
= TA_adjust_point_index(recorder
, *ip
);
680 *(p
++) = HIGH(point
);
685 /* ip_on_point_array */
688 ip
= recorder
->ip_on_point_array
;
689 ip_limit
= ip
+ num_edges
* num_strong_points
;
690 for (; ip
< ip_limit
; ip
+= num_strong_points
)
696 recorder
->hints_record
.num_actions
++;
699 *(p
++) = (FT_Byte
)ta_ip_on
+ ACTION_OFFSET
;
704 ip
= recorder
->ip_on_point_array
;
705 ip_limit
= ip
+ num_edges
* num_strong_points
;
706 for (; ip
< ip_limit
; ip
+= num_strong_points
, i
++)
713 *(p
++) = HIGH(edge
->first
- segments
);
714 *(p
++) = LOW(edge
->first
- segments
);
718 iq_limit
= iq
+ num_strong_points
;
719 for (; iq
< iq_limit
; iq
++)
732 for (; iq
< iq_limit
; iq
++)
734 FT_UInt point
= TA_adjust_point_index(recorder
, *iq
);
737 *(p
++) = HIGH(point
);
743 /* ip_between_point_array */
746 ip
= recorder
->ip_between_point_array
;
747 ip_limit
= ip
+ num_edges
* num_edges
* num_strong_points
;
748 for (; ip
< ip_limit
; ip
+= num_strong_points
)
754 recorder
->hints_record
.num_actions
++;
757 *(p
++) = (FT_Byte
)ta_ip_between
+ ACTION_OFFSET
;
762 ip
= recorder
->ip_between_point_array
;
763 ip_limit
= ip
+ num_edges
* num_edges
* num_strong_points
;
766 ip
+= num_edges
* num_strong_points
, i
++)
776 iq_limit
= iq
+ num_edges
* num_strong_points
;
777 for (; iq
< iq_limit
; iq
+= num_strong_points
, j
++)
784 *(p
++) = HIGH(after
->first
- segments
);
785 *(p
++) = LOW(after
->first
- segments
);
786 *(p
++) = HIGH(before
->first
- segments
);
787 *(p
++) = LOW(before
->first
- segments
);
791 ir_limit
= ir
+ num_strong_points
;
792 for (; ir
< ir_limit
; ir
++)
805 for (; ir
< ir_limit
; ir
++)
807 FT_UInt point
= TA_adjust_point_index(recorder
, *ir
);
810 *(p
++) = HIGH(point
);
817 recorder
->hints_record
.buf
= p
;
822 TA_hints_record_is_different(Hints_Record
* hints_records
,
823 FT_UInt num_hints_records
,
827 Hints_Record last_hints_record
;
833 /* we only need to compare with the last hints record */
834 last_hints_record
= hints_records
[num_hints_records
- 1];
836 if ((FT_UInt
)(end
- start
) != last_hints_record
.buf_len
)
839 if (memcmp(start
, last_hints_record
.buf
, last_hints_record
.buf_len
))
847 TA_add_hints_record(Hints_Record
** hints_records
,
848 FT_UInt
* num_hints_records
,
850 Hints_Record hints_record
)
852 Hints_Record
* hints_records_new
;
854 /* at this point, `hints_record.buf' still points into `ins_buf' */
855 FT_Byte
* end
= hints_record
.buf
;
858 buf_len
= (FT_UInt
)(end
- start
);
860 /* now fill the structure completely */
861 hints_record
.buf_len
= buf_len
;
862 hints_record
.buf
= (FT_Byte
*)malloc(buf_len
);
863 if (!hints_record
.buf
)
864 return FT_Err_Out_Of_Memory
;
866 memcpy(hints_record
.buf
, start
, buf_len
);
868 (*num_hints_records
)++;
870 (Hints_Record
*)realloc(*hints_records
, *num_hints_records
871 * sizeof (Hints_Record
));
872 if (!hints_records_new
)
874 free(hints_record
.buf
);
875 (*num_hints_records
)--;
876 return FT_Err_Out_Of_Memory
;
879 *hints_records
= hints_records_new
;
881 (*hints_records
)[*num_hints_records
- 1] = hints_record
;
888 TA_emit_hints_record(Recorder
* recorder
,
889 Hints_Record
* hints_record
,
895 FT_Bool need_words
= 0;
898 FT_UInt num_arguments
;
902 /* check whether any argument is larger than 0xFF */
903 endp
= hints_record
->buf
+ hints_record
->buf_len
;
904 for (p
= hints_record
->buf
; p
< endp
; p
+= 2)
908 /* with most fonts it is very rare */
909 /* that any of the pushed arguments is larger than 0xFF, */
910 /* thus we refrain from further optimizing this case */
912 num_arguments
= hints_record
->buf_len
/ 2;
917 for (i
= 0; i
< num_arguments
; i
+= 255)
919 num_args
= (num_arguments
- i
> 255) ? 255 : (num_arguments
- i
);
921 if (optimize
&& num_args
<= 8)
922 BCI(PUSHW_1
- 1 + num_args
);
928 for (j
= 0; j
< num_args
; j
++)
938 /* we only need the lower bytes */
941 for (i
= 0; i
< num_arguments
; i
+= 255)
943 num_args
= (num_arguments
- i
> 255) ? 255 : (num_arguments
- i
);
945 if (optimize
&& num_args
<= 8)
946 BCI(PUSHB_1
- 1 + num_args
);
952 for (j
= 0; j
< num_args
; j
++)
960 /* collect stack depth data */
961 if (num_arguments
> recorder
->num_stack_elements
)
962 recorder
->num_stack_elements
= num_arguments
;
969 TA_emit_hints_records(Recorder
* recorder
,
970 Hints_Record
* hints_records
,
971 FT_UInt num_hints_records
,
976 Hints_Record
* hints_record
;
979 hints_record
= hints_records
;
981 for (i
= 0; i
< num_hints_records
- 1; i
++)
984 if (hints_record
->size
> 0xFF)
987 BCI(HIGH((hints_record
+ 1)->size
));
988 BCI(LOW((hints_record
+ 1)->size
));
993 BCI((hints_record
+ 1)->size
);
997 bufp
= TA_emit_hints_record(recorder
, hints_record
, bufp
, optimize
);
1003 bufp
= TA_emit_hints_record(recorder
, hints_record
, bufp
, optimize
);
1005 for (i
= 0; i
< num_hints_records
- 1; i
++)
1013 TA_free_hints_records(Hints_Record
* hints_records
,
1014 FT_UInt num_hints_records
)
1019 for (i
= 0; i
< num_hints_records
; i
++)
1020 free(hints_records
[i
].buf
);
1022 free(hints_records
);
1027 TA_hints_recorder_handle_segments(FT_Byte
* bufp
,
1032 TA_Segment segments
= axis
->segments
;
1035 FT_UShort num_segs
= 0;
1039 seg_idx
= edge
->first
- segments
;
1041 /* we store everything as 16bit numbers */
1042 *(bufp
++) = HIGH(seg_idx
);
1043 *(bufp
++) = LOW(seg_idx
);
1045 /* wrap-around segments are stored as two segments */
1046 if (edge
->first
->first
> edge
->first
->last
)
1049 seg
= edge
->first
->edge_next
;
1050 while (seg
!= edge
->first
)
1054 if (seg
->first
> seg
->last
)
1057 seg
= seg
->edge_next
;
1060 *(bufp
++) = HIGH(num_segs
);
1061 *(bufp
++) = LOW(num_segs
);
1063 if (edge
->first
->first
> edge
->first
->last
)
1065 /* emit second part of wrap-around segment; */
1066 /* the bytecode positions such segments after `normal' ones */
1070 if (seg_idx
== *wrap
)
1075 *(bufp
++) = HIGH(axis
->num_segments
+ (wrap
- wraps
));
1076 *(bufp
++) = LOW(axis
->num_segments
+ (wrap
- wraps
));
1079 seg
= edge
->first
->edge_next
;
1080 while (seg
!= edge
->first
)
1082 seg_idx
= seg
- segments
;
1084 *(bufp
++) = HIGH(seg_idx
);
1085 *(bufp
++) = LOW(seg_idx
);
1087 if (seg
->first
> seg
->last
)
1092 if (seg_idx
== *wrap
)
1097 *(bufp
++) = HIGH(axis
->num_segments
+ (wrap
- wraps
));
1098 *(bufp
++) = LOW(axis
->num_segments
+ (wrap
- wraps
));
1101 seg
= seg
->edge_next
;
1109 TA_hints_recorder(TA_Action action
,
1110 TA_GlyphHints hints
,
1115 TA_Edge lower_bound
,
1116 TA_Edge upper_bound
)
1118 TA_AxisHints axis
= &hints
->axis
[dim
];
1119 TA_Edge edges
= axis
->edges
;
1120 TA_Segment segments
= axis
->segments
;
1121 TA_Point points
= hints
->points
;
1123 Recorder
* recorder
= (Recorder
*)hints
->user
;
1124 FONT
* font
= recorder
->font
;
1125 FT_UShort
* wraps
= recorder
->wrap_around_segments
;
1126 FT_Byte
* p
= recorder
->hints_record
.buf
;
1132 if (dim
== TA_DIMENSION_HORZ
)
1135 /* we collect point hints for later processing */
1140 TA_Point point
= (TA_Point
)arg1
;
1143 ip
= recorder
->ip_before_points
;
1144 limit
= ip
+ recorder
->num_strong_points
;
1145 for (; ip
< limit
; ip
++)
1149 *ip
= point
- points
;
1158 TA_Point point
= (TA_Point
)arg1
;
1161 ip
= recorder
->ip_after_points
;
1162 limit
= ip
+ recorder
->num_strong_points
;
1163 for (; ip
< limit
; ip
++)
1167 *ip
= point
- points
;
1176 TA_Point point
= (TA_Point
)arg1
;
1177 TA_Edge edge
= arg2
;
1180 ip
= recorder
->ip_on_point_array
1181 + recorder
->num_strong_points
1183 limit
= ip
+ recorder
->num_strong_points
;
1184 for (; ip
< limit
; ip
++)
1188 *ip
= point
- points
;
1197 TA_Point point
= (TA_Point
)arg1
;
1198 TA_Edge before
= arg2
;
1199 TA_Edge after
= arg3
;
1202 /* note that `recorder->num_segments' has been used for allocation, */
1203 /* but `axis->num_edges' is used for accessing this array */
1204 ip
= recorder
->ip_between_point_array
1205 + recorder
->num_strong_points
* axis
->num_edges
1207 + recorder
->num_strong_points
1209 limit
= ip
+ recorder
->num_strong_points
;
1210 for (; ip
< limit
; ip
++)
1214 *ip
= point
- points
;
1222 /* we ignore the BOUND action since we signal this information */
1223 /* with the proper function number */
1230 /* some enum values correspond to four or eight bytecode functions; */
1231 /* if the value is n, the function numbers are n, ..., n+7, */
1232 /* to be differentiated with flags */
1238 TA_Edge base_edge
= (TA_Edge
)arg1
;
1239 TA_Edge stem_edge
= arg2
;
1243 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1244 + ((stem_edge
->flags
& TA_EDGE_SERIF
) != 0)
1245 + 2 * ((base_edge
->flags
& TA_EDGE_ROUND
) != 0);
1247 *(p
++) = HIGH(base_edge
->first
- segments
);
1248 *(p
++) = LOW(base_edge
->first
- segments
);
1249 *(p
++) = HIGH(stem_edge
->first
- segments
);
1250 *(p
++) = LOW(stem_edge
->first
- segments
);
1252 p
= TA_hints_recorder_handle_segments(p
, axis
, stem_edge
, wraps
);
1258 TA_Edge edge
= (TA_Edge
)arg1
;
1259 TA_Edge edge2
= arg2
;
1263 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1264 + ((edge2
->flags
& TA_EDGE_SERIF
) != 0)
1265 + 2 * ((edge
->flags
& TA_EDGE_ROUND
) != 0);
1267 *(p
++) = HIGH(edge
->first
- segments
);
1268 *(p
++) = LOW(edge
->first
- segments
);
1269 *(p
++) = HIGH(edge2
->first
- segments
);
1270 *(p
++) = LOW(edge2
->first
- segments
);
1272 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1278 TA_Edge edge
= (TA_Edge
)arg1
;
1279 TA_Edge edge2
= arg2
;
1280 TA_Edge edge_minus_one
= lower_bound
;
1284 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1285 + ((edge2
->flags
& TA_EDGE_SERIF
) != 0)
1286 + 2 * ((edge
->flags
& TA_EDGE_ROUND
) != 0)
1287 + 4 * (edge_minus_one
!= NULL
);
1289 *(p
++) = HIGH(edge
->first
- segments
);
1290 *(p
++) = LOW(edge
->first
- segments
);
1291 *(p
++) = HIGH(edge2
->first
- segments
);
1292 *(p
++) = LOW(edge2
->first
- segments
);
1296 *(p
++) = HIGH(edge_minus_one
->first
- segments
);
1297 *(p
++) = LOW(edge_minus_one
->first
- segments
);
1300 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1304 case ta_blue_anchor
:
1306 TA_Edge edge
= (TA_Edge
)arg1
;
1307 TA_Edge blue
= arg2
;
1311 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
;
1313 *(p
++) = HIGH(blue
->first
- segments
);
1314 *(p
++) = LOW(blue
->first
- segments
);
1316 if (edge
->best_blue_is_shoot
)
1318 *(p
++) = HIGH(CVT_BLUE_SHOOTS_OFFSET(font
) + edge
->best_blue_idx
);
1319 *(p
++) = LOW(CVT_BLUE_SHOOTS_OFFSET(font
) + edge
->best_blue_idx
);
1323 *(p
++) = HIGH(CVT_BLUE_REFS_OFFSET(font
) + edge
->best_blue_idx
);
1324 *(p
++) = LOW(CVT_BLUE_REFS_OFFSET(font
) + edge
->best_blue_idx
);
1327 *(p
++) = HIGH(edge
->first
- segments
);
1328 *(p
++) = LOW(edge
->first
- segments
);
1330 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1336 TA_Edge edge
= (TA_Edge
)arg1
;
1337 TA_Edge edge2
= arg2
;
1338 TA_Edge edge_minus_one
= lower_bound
;
1342 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1343 + ((edge2
->flags
& TA_EDGE_SERIF
) != 0)
1344 + 2 * ((edge
->flags
& TA_EDGE_ROUND
) != 0)
1345 + 4 * (edge_minus_one
!= NULL
);
1347 *(p
++) = HIGH(edge
->first
- segments
);
1348 *(p
++) = LOW(edge
->first
- segments
);
1349 *(p
++) = HIGH(edge2
->first
- segments
);
1350 *(p
++) = LOW(edge2
->first
- segments
);
1354 *(p
++) = HIGH(edge_minus_one
->first
- segments
);
1355 *(p
++) = LOW(edge_minus_one
->first
- segments
);
1358 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1359 p
= TA_hints_recorder_handle_segments(p
, axis
, edge2
, wraps
);
1365 TA_Edge edge
= (TA_Edge
)arg1
;
1369 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
;
1371 if (edge
->best_blue_is_shoot
)
1373 *(p
++) = HIGH(CVT_BLUE_SHOOTS_OFFSET(font
) + edge
->best_blue_idx
);
1374 *(p
++) = LOW(CVT_BLUE_SHOOTS_OFFSET(font
) + edge
->best_blue_idx
);
1378 *(p
++) = HIGH(CVT_BLUE_REFS_OFFSET(font
) + edge
->best_blue_idx
);
1379 *(p
++) = LOW(CVT_BLUE_REFS_OFFSET(font
) + edge
->best_blue_idx
);
1382 *(p
++) = HIGH(edge
->first
- segments
);
1383 *(p
++) = LOW(edge
->first
- segments
);
1385 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1391 TA_Edge serif
= (TA_Edge
)arg1
;
1392 TA_Edge base
= serif
->serif
;
1396 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1397 + (lower_bound
!= NULL
)
1398 + 2 * (upper_bound
!= NULL
);
1400 *(p
++) = HIGH(serif
->first
- segments
);
1401 *(p
++) = LOW(serif
->first
- segments
);
1402 *(p
++) = HIGH(base
->first
- segments
);
1403 *(p
++) = LOW(base
->first
- segments
);
1407 *(p
++) = HIGH(lower_bound
->first
- segments
);
1408 *(p
++) = LOW(lower_bound
->first
- segments
);
1412 *(p
++) = HIGH(upper_bound
->first
- segments
);
1413 *(p
++) = LOW(upper_bound
->first
- segments
);
1416 p
= TA_hints_recorder_handle_segments(p
, axis
, serif
, wraps
);
1420 case ta_serif_anchor
:
1421 case ta_serif_link2
:
1423 TA_Edge edge
= (TA_Edge
)arg1
;
1427 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1428 + (lower_bound
!= NULL
)
1429 + 2 * (upper_bound
!= NULL
);
1431 *(p
++) = HIGH(edge
->first
- segments
);
1432 *(p
++) = LOW(edge
->first
- segments
);
1436 *(p
++) = HIGH(lower_bound
->first
- segments
);
1437 *(p
++) = LOW(lower_bound
->first
- segments
);
1441 *(p
++) = HIGH(upper_bound
->first
- segments
);
1442 *(p
++) = LOW(upper_bound
->first
- segments
);
1445 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1449 case ta_serif_link1
:
1451 TA_Edge edge
= (TA_Edge
)arg1
;
1452 TA_Edge before
= arg2
;
1453 TA_Edge after
= arg3
;
1457 *(p
++) = (FT_Byte
)action
+ ACTION_OFFSET
1458 + (lower_bound
!= NULL
)
1459 + 2 * (upper_bound
!= NULL
);
1461 *(p
++) = HIGH(before
->first
- segments
);
1462 *(p
++) = LOW(before
->first
- segments
);
1463 *(p
++) = HIGH(edge
->first
- segments
);
1464 *(p
++) = LOW(edge
->first
- segments
);
1465 *(p
++) = HIGH(after
->first
- segments
);
1466 *(p
++) = LOW(after
->first
- segments
);
1470 *(p
++) = HIGH(lower_bound
->first
- segments
);
1471 *(p
++) = LOW(lower_bound
->first
- segments
);
1475 *(p
++) = HIGH(upper_bound
->first
- segments
);
1476 *(p
++) = LOW(upper_bound
->first
- segments
);
1479 p
= TA_hints_recorder_handle_segments(p
, axis
, edge
, wraps
);
1484 /* there are more cases in the enumeration */
1485 /* which are handled with flags */
1489 recorder
->hints_record
.num_actions
++;
1490 recorder
->hints_record
.buf
= p
;
1495 TA_init_recorder(Recorder
* recorder
,
1498 TA_GlyphHints hints
)
1500 TA_AxisHints axis
= &hints
->axis
[TA_DIMENSION_VERT
];
1501 TA_Point points
= hints
->points
;
1502 TA_Point point_limit
= points
+ hints
->num_points
;
1505 TA_Segment segments
= axis
->segments
;
1506 TA_Segment seg_limit
= segments
+ axis
->num_segments
;
1509 FT_UShort num_strong_points
= 0;
1510 FT_UShort
* wrap_around_segment
;
1512 recorder
->font
= font
;
1513 recorder
->glyph
= glyph
;
1514 recorder
->num_segments
= axis
->num_segments
;
1516 recorder
->ip_before_points
= NULL
;
1517 recorder
->ip_after_points
= NULL
;
1518 recorder
->ip_on_point_array
= NULL
;
1519 recorder
->ip_between_point_array
= NULL
;
1521 recorder
->num_stack_elements
= 0;
1523 /* no need to clean up allocated arrays in case of error; */
1524 /* this is handled later by `TA_free_recorder' */
1526 recorder
->num_wrap_around_segments
= 0;
1527 for (seg
= segments
; seg
< seg_limit
; seg
++)
1528 if (seg
->first
> seg
->last
)
1529 recorder
->num_wrap_around_segments
++;
1531 recorder
->wrap_around_segments
=
1532 (FT_UShort
*)malloc(recorder
->num_wrap_around_segments
1533 * sizeof (FT_UShort
));
1534 if (!recorder
->wrap_around_segments
)
1535 return FT_Err_Out_Of_Memory
;
1537 wrap_around_segment
= recorder
->wrap_around_segments
;
1538 for (seg
= segments
; seg
< seg_limit
; seg
++)
1539 if (seg
->first
> seg
->last
)
1540 *(wrap_around_segment
++) = seg
- segments
;
1542 /* get number of strong points */
1543 for (point
= points
; point
< point_limit
; point
++)
1545 /* actually, we need to test `TA_FLAG_TOUCH_Y' also; */
1546 /* however, this value isn't known yet */
1547 /* (or rather, it can vary between different pixel sizes) */
1548 if (point
->flags
& TA_FLAG_WEAK_INTERPOLATION
)
1551 num_strong_points
++;
1554 recorder
->num_strong_points
= num_strong_points
;
1556 recorder
->ip_before_points
=
1557 (FT_UShort
*)malloc(num_strong_points
* sizeof (FT_UShort
));
1558 if (!recorder
->ip_before_points
)
1559 return FT_Err_Out_Of_Memory
;
1561 recorder
->ip_after_points
=
1562 (FT_UShort
*)malloc(num_strong_points
* sizeof (FT_UShort
));
1563 if (!recorder
->ip_after_points
)
1564 return FT_Err_Out_Of_Memory
;
1566 /* actually, we need `hints->num_edges' for the array sizes; */
1567 /* however, this value isn't known yet */
1568 /* (or rather, it can vary between different pixel sizes) */
1569 recorder
->ip_on_point_array
=
1570 (FT_UShort
*)malloc(axis
->num_segments
1571 * num_strong_points
* sizeof (FT_UShort
));
1572 if (!recorder
->ip_on_point_array
)
1573 return FT_Err_Out_Of_Memory
;
1575 recorder
->ip_between_point_array
=
1576 (FT_UShort
*)malloc(axis
->num_segments
* axis
->num_segments
1577 * num_strong_points
* sizeof (FT_UShort
));
1578 if (!recorder
->ip_between_point_array
)
1579 return FT_Err_Out_Of_Memory
;
1586 TA_reset_recorder(Recorder
* recorder
,
1589 recorder
->hints_record
.buf
= bufp
;
1590 recorder
->hints_record
.num_actions
= 0;
1595 TA_rewind_recorder(Recorder
* recorder
,
1599 TA_reset_recorder(recorder
, bufp
);
1601 recorder
->hints_record
.size
= size
;
1603 /* We later check with MISSING (which expands to 0xFF bytes) */
1605 memset(recorder
->ip_before_points
, 0xFF,
1606 recorder
->num_strong_points
* sizeof (FT_UShort
));
1607 memset(recorder
->ip_after_points
, 0xFF,
1608 recorder
->num_strong_points
* sizeof (FT_UShort
));
1610 memset(recorder
->ip_on_point_array
, 0xFF,
1611 recorder
->num_segments
1612 * recorder
->num_strong_points
* sizeof (FT_UShort
));
1613 memset(recorder
->ip_between_point_array
, 0xFF,
1614 recorder
->num_segments
* recorder
->num_segments
1615 * recorder
->num_strong_points
* sizeof (FT_UShort
));
1620 TA_free_recorder(Recorder
* recorder
)
1622 free(recorder
->wrap_around_segments
);
1624 free(recorder
->ip_before_points
);
1625 free(recorder
->ip_after_points
);
1626 free(recorder
->ip_on_point_array
);
1627 free(recorder
->ip_between_point_array
);
1632 TA_sfnt_build_glyph_instructions(SFNT
* sfnt
,
1636 FT_Face face
= sfnt
->face
;
1644 SFNT_Table
* glyf_table
= &font
->tables
[sfnt
->glyf_idx
];
1645 glyf_Data
* data
= (glyf_Data
*)glyf_table
->data
;
1646 /* `idx' is never negative */
1647 GLYPH
* glyph
= &data
->glyphs
[idx
];
1649 TA_GlyphHints hints
;
1651 FT_UInt num_action_hints_records
= 0;
1652 FT_UInt num_point_hints_records
= 0;
1653 Hints_Record
* action_hints_records
= NULL
;
1654 Hints_Record
* point_hints_records
= NULL
;
1657 FT_UShort num_stack_elements
;
1658 FT_Bool optimize
= 0;
1660 FT_Int32 load_flags
;
1670 /* XXX: right now, we abuse this flag to control */
1671 /* the global behaviour of the auto-hinter */
1672 load_flags
= 1 << 29; /* vertical hinting only */
1673 if (!font
->pre_hinting
)
1675 if (font
->hint_composites
)
1676 load_flags
|= FT_LOAD_NO_SCALE
;
1678 load_flags
|= FT_LOAD_NO_RECURSE
;
1681 /* computing the segments is resolution independent, */
1682 /* thus the pixel size in this call is arbitrary */
1683 error
= FT_Set_Pixel_Sizes(face
, 20, 20);
1688 /* temporarily disable debugging output */
1689 /* to avoid getting the information twice */
1690 _ta_debug_save
= _ta_debug
;
1694 ta_loader_register_hints_recorder(font
->loader
, NULL
, NULL
);
1695 error
= ta_loader_load_glyph(font
, face
, (FT_UInt
)idx
, load_flags
);
1698 _ta_debug
= _ta_debug_save
;
1704 /* do nothing if we have an empty glyph */
1705 if (!face
->glyph
->outline
.n_contours
)
1708 hints
= &font
->loader
->hints
;
1710 /* do nothing if the setup delivered the dummy module only */
1711 if (!hints
->num_points
)
1714 /* we allocate a buffer which is certainly large enough */
1715 /* to hold all of the created bytecode instructions; */
1716 /* later on it gets reallocated to its real size */
1717 ins_len
= hints
->num_points
* 1000;
1718 ins_buf
= (FT_Byte
*)malloc(ins_len
);
1720 return FT_Err_Out_Of_Memory
;
1722 /* initialize array with an invalid bytecode */
1723 /* so that we can easily find the array length at reallocation time */
1724 memset(ins_buf
, INS_A0
, ins_len
);
1726 /* handle composite glyph */
1727 if (font
->loader
->gloader
->base
.num_subglyphs
)
1729 bufp
= TA_font_build_subglyph_shifter(font
, ins_buf
);
1732 error
= FT_Err_Out_Of_Memory
;
1739 /* only scale the glyph if the dummy hinter has been used */
1740 if (font
->loader
->metrics
->clazz
== &ta_dummy_script_class
)
1742 /* since `TA_init_recorder' hasn't been called yet, */
1743 /* we manually initialize the `font' and `glyph' fields */
1744 recorder
.font
= font
;
1745 recorder
.glyph
= glyph
;
1747 bufp
= TA_sfnt_build_glyph_scaler(sfnt
, &recorder
, ins_buf
);
1750 error
= FT_Err_Out_Of_Memory
;
1757 error
= TA_init_recorder(&recorder
, font
, glyph
, hints
);
1761 /* loop over a large range of pixel sizes */
1762 /* to find hints records which get pushed onto the bytecode stack */
1771 (void)FT_Get_Glyph_Name(face
, idx
, buf
, 256);
1773 num_chars
= fprintf(stderr
, "glyph %ld", idx
);
1775 num_chars
+= fprintf(stderr
, " (%s)", buf
);
1776 fprintf(stderr
, "\n");
1777 for (i
= 0; i
< num_chars
; i
++)
1779 fprintf(stderr
, "\n\n");
1784 /* we temporarily use `ins_buf' to record the current glyph hints */
1785 ta_loader_register_hints_recorder(font
->loader
,
1789 for (size
= font
->hinting_range_min
;
1790 size
<= font
->hinting_range_max
;
1798 TA_rewind_recorder(&recorder
, ins_buf
, size
);
1800 error
= FT_Set_Pixel_Sizes(face
, size
, size
);
1810 num_chars
= fprintf(stderr
, "size %d\n", size
);
1811 for (i
= 0; i
< num_chars
- 1; i
++)
1813 fprintf(stderr
, "\n\n");
1817 /* calling `ta_loader_load_glyph' uses the */
1818 /* `TA_hints_recorder' function as a callback, */
1819 /* modifying `hints_record' */
1820 error
= ta_loader_load_glyph(font
, face
, idx
, load_flags
);
1824 if (TA_hints_record_is_different(action_hints_records
,
1825 num_action_hints_records
,
1826 ins_buf
, recorder
.hints_record
.buf
))
1833 ta_glyph_hints_dump_edges(_ta_debug_hints
);
1834 ta_glyph_hints_dump_segments(_ta_debug_hints
);
1835 ta_glyph_hints_dump_points(_ta_debug_hints
);
1837 fprintf(stderr
, "action hints record:\n");
1838 if (ins_buf
== recorder
.hints_record
.buf
)
1839 fprintf(stderr
, " (none)");
1842 fprintf(stderr
, " ");
1843 for (p
= ins_buf
; p
< recorder
.hints_record
.buf
; p
+= 2)
1844 fprintf(stderr
, " %2d", *p
* 256 + *(p
+ 1));
1846 fprintf(stderr
, "\n");
1850 error
= TA_add_hints_record(&action_hints_records
,
1851 &num_action_hints_records
,
1852 ins_buf
, recorder
.hints_record
);
1857 /* now handle point records */
1859 TA_reset_recorder(&recorder
, ins_buf
);
1861 /* use the point hints data collected in `TA_hints_recorder' */
1862 TA_build_point_hints(&recorder
, hints
);
1864 if (TA_hints_record_is_different(point_hints_records
,
1865 num_point_hints_records
,
1866 ins_buf
, recorder
.hints_record
.buf
))
1876 num_chars
= fprintf(stderr
, "size %d\n", size
);
1877 for (i
= 0; i
< num_chars
- 1; i
++)
1879 fprintf(stderr
, "\n\n");
1881 ta_glyph_hints_dump_edges(_ta_debug_hints
);
1882 ta_glyph_hints_dump_segments(_ta_debug_hints
);
1883 ta_glyph_hints_dump_points(_ta_debug_hints
);
1886 fprintf(stderr
, "point hints record:\n");
1887 if (ins_buf
== recorder
.hints_record
.buf
)
1888 fprintf(stderr
, " (none)");
1891 fprintf(stderr
, " ");
1892 for (p
= ins_buf
; p
< recorder
.hints_record
.buf
; p
+= 2)
1893 fprintf(stderr
, " %2d", *p
* 256 + *(p
+ 1));
1895 fprintf(stderr
, "\n\n");
1899 error
= TA_add_hints_record(&point_hints_records
,
1900 &num_point_hints_records
,
1901 ins_buf
, recorder
.hints_record
);
1907 if (num_action_hints_records
== 1 && !action_hints_records
[0].num_actions
)
1909 /* since we only have a single empty record we just scale the glyph */
1910 bufp
= TA_sfnt_build_glyph_scaler(sfnt
, &recorder
, ins_buf
);
1913 error
= FT_Err_Out_Of_Memory
;
1917 /* clear the rest of the temporarily used part of `ins_buf' */
1919 while (*p
!= INS_A0
)
1925 /* if there is only a single record, */
1926 /* we do a global optimization later on */
1927 if (num_action_hints_records
> 1)
1930 /* store the hints records and handle stack depth */
1932 bufp
= TA_emit_hints_records(&recorder
,
1933 point_hints_records
,
1934 num_point_hints_records
,
1938 num_stack_elements
= recorder
.num_stack_elements
;
1939 recorder
.num_stack_elements
= 0;
1942 bufp
= TA_emit_hints_records(&recorder
,
1943 action_hints_records
,
1944 num_action_hints_records
,
1948 recorder
.num_stack_elements
+= num_stack_elements
;
1951 bufp
= TA_sfnt_build_glyph_segments(sfnt
, &recorder
, bufp
, optimize
);
1954 error
= FT_Err_Out_Of_Memory
;
1958 /* XXX improve handling of NPUSHW */
1959 if (num_action_hints_records
== 1
1960 && *(pos
[0]) != NPUSHW
&& *(pos
[1]) != NPUSHW
&& *(pos
[2]) != NPUSHW
)
1963 * we optimize two common cases, replacing
1965 * NPUSHB A ... NPUSHB B [... NPUSHB C] ... CALL
1969 * NPUSHB (A+B[+C]) ... CALL
1982 /* the point hints records block can be missing */
1983 if (pos
[0] == pos
[1])
1989 /* there are at least two NPUSHB instructions */
1990 /* (one of them directly at the start) */
1991 sizes
[0] = *(pos
[0] + 1);
1992 sizes
[1] = *(pos
[1] + 1);
1993 sizes
[2] = pos
[2] ? *(pos
[2] + 1) : 0;
1995 sum
= sizes
[0] + sizes
[1] + sizes
[2];
1998 goto Done2
; /* nothing to do since we need three NPUSHB */
1999 else if (!sizes
[2] && (sum
> 0xFF))
2000 goto Done2
; /* nothing to do since we need two NPUSHB */
2004 /* reduce three NPUSHB to two */
2006 new_size2
= sum
- 0xFF;
2010 /* reduce two or three NPUSHB to one */
2021 BCI(PUSHB_1
- 1 + new_size1
);
2027 for (i
= 0; i
< new_size1
; i
++)
2029 if (p
== pos
[pos_idx
])
2032 p
+= 2; /* skip old NPUSHB */
2040 BCI(PUSHB_1
- 1 + new_size2
);
2046 for (i
= 0; i
< new_size2
; i
++)
2048 if (p
== pos
[pos_idx
])
2061 /* clear the rest of the temporarily used part of `ins_buf' */
2063 while (*p
!= INS_A0
)
2067 TA_free_hints_records(action_hints_records
, num_action_hints_records
);
2068 TA_free_hints_records(point_hints_records
, num_point_hints_records
);
2069 TA_free_recorder(&recorder
);
2071 /* we are done, so reallocate the instruction array to its real size */
2072 if (*bufp
== INS_A0
)
2074 /* search backwards */
2075 while (*bufp
== INS_A0
)
2081 /* search forwards */
2082 while (*bufp
!= INS_A0
)
2087 ins_len
= bufp
- ins_buf
;
2089 if (ins_len
> sfnt
->max_instructions
)
2090 sfnt
->max_instructions
= ins_len
;
2092 glyph
->ins_buf
= (FT_Byte
*)realloc(ins_buf
, ins_len
);
2093 glyph
->ins_len
= ins_len
;
2098 TA_free_hints_records(action_hints_records
, num_action_hints_records
);
2099 TA_free_hints_records(point_hints_records
, num_point_hints_records
);
2100 TA_free_recorder(&recorder
);
2107 /* end of tabytecode.c */