1 /* lots of code c&p-ed directly from mupdf */
12 #include <sys/types.h>
13 #include <sys/ioctl.h>
16 #include <cygwin/socket.h> /* FIONREAD */
25 #include <OpenGL/gl.h>
30 #include <caml/fail.h>
31 #include <caml/alloc.h>
32 #include <caml/memory.h>
33 #include <caml/unixsupport.h>
40 #include FT_FREETYPE_H
45 #define NORETURN __attribute__ ((noreturn))
46 #define UNUSED __attribute__ ((unused))
47 #define OPTIMIZE(n) __attribute__ ((optimize ("O"#n)))
48 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
53 #define GCC_FMT_ATTR(a, b)
59 #define FMT_ptr_cast(p) (p)
60 #define FMT_ptr_cast2(p) (p)
62 static void NORETURN
GCC_FMT_ATTR (2, 3)
63 err (int exitcode
, const char *fmt
, ...)
70 vfprintf (stderr
, fmt
, ap
);
72 fprintf (stderr
, ": %s\n", strerror (savederrno
));
77 static void NORETURN
GCC_FMT_ATTR (2, 3)
78 errx (int exitcode
, const char *fmt
, ...)
83 vfprintf (stderr
, fmt
, ap
);
90 #ifndef GL_TEXTURE_RECTANGLE_ARB
91 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
95 #define GL_BGRA 0x80E1
98 #ifndef GL_UNSIGNED_INT_8_8_8_8
99 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
102 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
103 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
107 #define lprintf printf
112 #define ARSERT(cond) for (;;) { \
114 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
129 struct slice slices
[1];
140 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
148 enum { DPDF
, DXPS
, DCBZ
};
162 fz_display_list
*dlist
;
165 struct slink
*slinks
;
170 void (*freepage
) (void *);
176 struct pagedim
*pagedims
;
195 fz_colorspace
*colorspace
;
217 void (*closedoc
) (void);
218 void (*freepage
) (void *);
221 static void UNUSED
debug_rect (const char *cap
, fz_rect r
)
223 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
226 static void UNUSED
debug_bbox (const char *cap
, fz_bbox r
)
228 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
231 static void UNUSED
debug_matrix (const char *cap
, fz_matrix m
)
233 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
234 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
237 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
239 static void lock (const char *cap
)
241 int ret
= pthread_mutex_lock (&mutex
);
243 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
247 static void unlock (const char *cap
)
249 int ret
= pthread_mutex_unlock (&mutex
);
251 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
255 static int trylock (const char *cap
)
257 int ret
= pthread_mutex_trylock (&mutex
);
259 if (ret
&& ret
!= EBUSY
) {
260 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
265 static void *parse_pointer (const char *cap
, const char *s
)
270 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
272 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
277 static double now (void)
281 if (gettimeofday (&tv
, NULL
)) {
282 err (1, "gettimeofday");
284 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
287 static int hasdata (void)
290 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
291 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
295 CAMLprim value
ml_hasdata (value fd_v
)
300 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
301 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
302 CAMLreturn (Val_bool (avail
> 0));
305 static void readdata (void *p
, int size
)
309 n
= read (state
.cr
, p
, size
);
311 if (!n
) errx (1, "EOF while reading");
312 err (1, "read (req %d, ret %zd)", size
, n
);
316 static void writedata (char *p
, int size
)
321 buf
[0] = (size
>> 24) & 0xff;
322 buf
[1] = (size
>> 16) & 0xff;
323 buf
[2] = (size
>> 8) & 0xff;
324 buf
[3] = (size
>> 0) & 0xff;
326 n
= write (state
.cw
, buf
, 4);
328 if (!n
) errx (1, "EOF while writing length");
329 err (1, "write %zd", n
);
332 n
= write (state
.cw
, p
, size
);
334 if (!n
) errx (1, "EOF while writing data");
335 err (1, "write (req %d, ret %zd)", size
, n
);
339 static int readlen (void)
344 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
347 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
355 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
358 len
= vsnprintf (buf
, size
, fmt
, ap
);
361 if (len
> -1 && len
< size
) {
362 writedata (buf
, len
);
372 buf
= realloc (buf
, size
);
377 static void closepdf (void)
380 pdf_close_document (state
.u
.pdf
);
385 static void closexps (void)
388 xps_close_document (state
.u
.xps
);
393 static void closecbz (void)
396 cbz_close_document (state
.u
.cbz
);
401 static void freepdfpage (void *ptr
)
403 pdf_free_page (state
.u
.pdf
, ptr
);
406 static void freexpspage (void *ptr
)
408 xps_free_page (state
.u
.xps
, ptr
);
411 static void freecbzpage (void *ptr
)
413 cbz_free_page (state
.u
.cbz
, ptr
);
416 static void openxref (char *filename
, char *password
)
420 for (i
= 0; i
< state
.texcount
; ++i
) {
421 state
.texowners
[i
].w
= -1;
422 state
.texowners
[i
].slice
= NULL
;
425 if (state
.closedoc
) state
.closedoc ();
427 len
= strlen (filename
);
433 ext
[0] = tolower ((int) filename
[len
-3]);
434 ext
[1] = tolower ((int) filename
[len
-2]);
435 ext
[2] = tolower ((int) filename
[len
-1]);
437 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
440 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
445 if (state
.pagedims
) {
446 free (state
.pagedims
);
447 state
.pagedims
= NULL
;
449 state
.pagedimcount
= 0;
451 fz_set_aa_level (state
.ctx
, state
.aalevel
);
452 switch (state
.type
) {
454 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
455 if (pdf_needs_password (state
.u
.pdf
)) {
456 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
458 errx (1, "invalid password");
461 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
462 state
.closedoc
= closepdf
;
463 state
.freepage
= freepdfpage
;
467 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
468 state
.pagecount
= xps_count_pages (state
.u
.xps
);
469 state
.closedoc
= closexps
;
470 state
.freepage
= freexpspage
;
474 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
475 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
476 state
.closedoc
= closecbz
;
477 state
.freepage
= freecbzpage
;
482 static void pdfinfo (void)
484 if (state
.type
== DPDF
) {
487 printd ("info PDF version\t%d.%d",
488 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
490 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
494 char *items
[] = { "Title", "Author", "Creator",
495 "Producer", "CreationDate" };
497 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
498 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
499 s
= pdf_to_utf8 (state
.ctx
, obj
);
502 printd ("title %s", s
);
504 printd ("info %s\t%s", items
[i
], s
);
506 fz_free (state
.ctx
, s
);
513 static void unlinktile (struct tile
*tile
)
517 for (i
= 0; i
< tile
->slicecount
; ++i
) {
518 struct slice
*s
= &tile
->slices
[i
];
520 if (s
->texindex
!= -1) {
521 if (state
.texowners
[s
->texindex
].slice
== s
) {
522 state
.texowners
[s
->texindex
].slice
= NULL
;
528 static void freepage (struct page
*page
)
531 fz_free_text_span (state
.ctx
, page
->text
);
536 page
->freepage (page
->u
.ptr
);
537 fz_free_display_list (state
.ctx
, page
->dlist
);
541 static void freetile (struct tile
*tile
)
545 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
548 fz_drop_pixmap (state
.ctx
, state
.pig
);
550 state
.pig
= tile
->pixmap
;
558 static int cacheline32bytes
;
559 extern char **environ
;
561 static void __attribute__ ((constructor
)) clcheck (void)
563 char **envp
= environ
;
568 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
570 cacheline32bytes
= auxv
[1] == 32;
576 static void OPTIMIZE (3) clearpixmap (fz_pixmap
*pixmap
)
578 if (cacheline32bytes
) {
579 intptr_t a1
, a2
, diff
;
580 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
581 vector
unsigned char v
= vec_splat_u8 (-1);
582 vector
unsigned char *p
;
584 a1
= a2
= (intptr_t) pixmap
->samples
;
585 a2
= (a1
+ 31) & ~31;
590 while (a1
!= a2
) *(char *) a1
++ = 0xff;
591 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
592 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
594 vec_st (v
, i
+ 16, p
);
596 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
598 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
601 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
604 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
607 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
609 if (!pdim
->tctmready
) {
610 if (state
.trimmargins
) {
613 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
614 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
615 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
616 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
627 static fz_matrix
pagectm (struct page
*page
)
629 if (page
->type
== DPDF
) {
630 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
631 state
.pagedims
[page
->pdimno
].ctm
);
635 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
637 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
638 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
639 -pdim
->mediabox
.y0
), ctm
);
644 static void *loadpage (int pageno
, int pindex
)
647 struct page
*page
= NULL
;
649 page
= calloc (sizeof (struct page
), 1);
651 err (1, "calloc page %d", pageno
);
654 page
->dlist
= fz_new_display_list (state
.ctx
);
655 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
656 switch (state
.type
) {
658 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
659 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
660 page
->freepage
= freepdfpage
;
664 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
665 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
666 page
->freepage
= freexpspage
;
670 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
671 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
672 page
->freepage
= freecbzpage
;
675 fz_free_device (dev
);
677 page
->pdimno
= pindex
;
678 page
->pageno
= pageno
;
679 page
->gen
= state
.gen
;
680 page
->type
= state
.type
;
685 static struct tile
*alloctile (int h
)
692 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
693 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
694 tile
= calloc (tilesize
, 1);
696 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
698 for (i
= 0; i
< slicecount
; ++i
) {
699 int sh
= MIN (h
, state
.sliceheight
);
700 tile
->slices
[i
].h
= sh
;
701 tile
->slices
[i
].texindex
= -1;
704 tile
->slicecount
= slicecount
;
705 tile
->sliceheight
= state
.sliceheight
;
709 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
)
714 struct pagedim
*pdim
;
716 tile
= alloctile (h
);
717 pdim
= &state
.pagedims
[page
->pdimno
];
722 bbox
.x1
= bbox
.x0
+ w
;
723 bbox
.y1
= bbox
.y0
+ h
;
726 if (state
.pig
->w
== w
728 && state
.pig
->colorspace
== state
.colorspace
) {
729 tile
->pixmap
= state
.pig
;
730 tile
->pixmap
->x
= bbox
.x0
;
731 tile
->pixmap
->y
= bbox
.y0
;
734 fz_drop_pixmap (state
.ctx
, state
.pig
);
740 fz_new_pixmap_with_rect (state
.ctx
, state
.colorspace
, bbox
);
745 clearpixmap (tile
->pixmap
);
746 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
747 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
748 fz_free_device (dev
);
753 static void initpdims (void)
759 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
764 switch (state
.type
) {
766 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
768 if (state
.trimmargins
) {
772 page
= pdf_load_page (state
.u
.pdf
, pageno
);
773 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
774 if (state
.trimanew
|| !obj
) {
780 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
781 dev
->hints
|= FZ_IGNORE_SHADE
;
782 ctm
= fz_invert_matrix (page
->ctm
);
783 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
784 fz_free_device (dev
);
786 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
787 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
788 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
789 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
790 rect
= fz_transform_rect (ctm
, rect
);
791 rect
= fz_intersect_rect (rect
, page
->mediabox
);
793 if (fz_is_empty_rect (rect
)) {
794 mediabox
= page
->mediabox
;
800 obj
= pdf_new_array (state
.ctx
, 4);
801 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
802 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
803 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
804 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
805 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
808 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
809 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
810 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
811 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
814 rotate
= page
->rotate
;
815 pdf_free_page (state
.u
.pdf
, page
);
817 printd ("progress %f Trimming %d",
818 (double) (pageno
+ 1) / state
.pagecount
,
824 mediabox
= pdf_to_rect (state
.ctx
,
825 pdf_dict_gets (pageobj
, "MediaBox"));
826 if (fz_is_empty_rect (mediabox
)) {
827 fprintf (stderr
, "cannot find page size for page %d\n",
835 cropbox
= pdf_to_rect (state
.ctx
,
836 pdf_dict_gets (pageobj
, "CropBox"));
837 if (!fz_is_empty_rect (cropbox
)) {
838 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
840 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
849 page
= xps_load_page (state
.u
.xps
, pageno
);
850 mediabox
= xps_bound_page (state
.u
.xps
, page
);
852 if (state
.trimmargins
) {
857 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
858 dev
->hints
|= FZ_IGNORE_SHADE
;
859 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
860 fz_free_device (dev
);
862 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
863 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
864 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
865 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
866 rect
= fz_intersect_rect (rect
, mediabox
);
868 if (!fz_is_empty_rect (rect
)) {
872 xps_free_page (state
.u
.xps
, page
);
873 printd ("progress %f loading %d",
874 (double) (pageno
+ 1) / state
.pagecount
,
882 if (state
.trimmargins
) {
885 page
= cbz_load_page (state
.u
.cbz
, pageno
);
886 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
887 cbz_free_page (state
.u
.cbz
, page
);
888 printd ("progress %f Trimming %d",
889 (double) (pageno
+ 1) / state
.pagecount
,
893 mediabox
.x0
= mediabox
.y0
= 0;
901 ARSERT (0 && state
.type
);
904 if (state
.pagedimcount
== 0
905 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
906 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
909 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
910 state
.pagedims
= realloc (state
.pagedims
, size
);
911 if (!state
.pagedims
) {
912 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
913 size
, state
.pagedimcount
+ 1);
916 p
= &state
.pagedims
[state
.pagedimcount
++];
918 p
->mediabox
= mediabox
;
923 if (state
.trimmargins
) {
924 printd ("progress 1 Trimmed %d pages in %f seconds",
925 state
.pagecount
, end
- start
);
928 printd ("vmsg Processed %d pages in %f seconds",
929 state
.pagecount
, end
- start
);
934 static void layout (void)
939 double zoom
, w
, maxw
= 0;
940 struct pagedim
*p
= state
.pagedims
;
942 if (state
.proportional
) {
943 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
944 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
947 maxw
= MAX (w
, maxw
);
952 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
955 ctm
= fz_rotate (state
.rotate
);
956 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
960 if (state
.proportional
) {
961 double scale
= w
/ maxw
;
962 zoom
= (state
.w
/ w
) * scale
;
968 p
->zoomctm
= fz_scale (zoom
, zoom
);
969 ctm
= fz_concat (p
->zoomctm
, ctm
);
971 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
972 p
->pagebox
.x1
-= p
->pagebox
.x0
;
973 p
->pagebox
.y1
-= p
->pagebox
.y0
;
976 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
979 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
983 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
984 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
985 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
991 while (p
-- != state
.pagedims
) {
992 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
993 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
994 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
995 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
999 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1003 static void recurse_outline (fz_outline
*outline
, int level
)
1008 struct pagedim
*pdim
= state
.pagedims
;
1010 dest
= &outline
->dest
;
1011 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1012 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1014 pdim
= &state
.pagedims
[i
];
1016 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1019 p
.y
= dest
->ld
.gotor
.lt
.y
;
1020 p
= fz_transform_point (pdim
->lctm
, p
);
1023 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1027 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1028 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1030 printd ("o %d %d %d %d %s",
1031 level
, dest
->ld
.gotor
.page
, top
, h
, outline
->title
);
1033 if (outline
->down
) {
1034 recurse_outline (outline
->down
, level
+ 1);
1036 outline
= outline
->next
;
1040 static void process_outline (void)
1042 fz_outline
*outline
;
1044 if (!state
.needoutline
) return;
1046 state
.needoutline
= 0;
1047 switch (state
.type
) {
1049 outline
= pdf_load_outline (state
.u
.pdf
);
1052 outline
= xps_load_outline (state
.u
.xps
);
1059 recurse_outline (outline
, 0);
1060 fz_free_outline (state
.ctx
, outline
);
1064 static int comparespans (const void *l
, const void *r
)
1066 fz_text_span
const *const*ls
= l
;
1067 fz_text_span
const *const*rs
= r
;
1068 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
1071 /* wishful thinking function */
1072 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1080 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1081 fz_text_span
*text
, *span
, **pspan
;
1082 struct pagedim
*pdim
, *pdimprev
;
1088 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1092 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1093 if (niters
++ == 5) {
1096 printd ("progress 1 attention requested aborting search at %d",
1101 printd ("progress %f searching in page %d",
1102 (double) (pageno
+ 1) / state
.pagecount
,
1107 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1108 pdim
= &state
.pagedims
[i
];
1109 if (pdim
->pageno
== pageno
) {
1112 if (pdim
->pageno
> pageno
) {
1121 text
= fz_new_text_span (state
.ctx
);
1122 tdev
= fz_new_text_device (state
.ctx
, text
);
1124 switch (state
.type
) {
1126 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1127 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, fz_identity
, NULL
);
1131 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1132 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, fz_identity
, NULL
);
1136 ARSERT (0 && state
.type
);
1139 fz_free_device (tdev
);
1142 for (span
= text
; span
; span
= span
->next
) {
1145 pspan
= malloc (sizeof (void *) * nspans
);
1147 err (1, "malloc span pointers %" FMT_s
, sizeof (void *) * nspans
);
1149 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
1152 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
1154 j
= forward
? 0 : nspans
- 1;
1159 j
+= forward
? 1 : -1;
1161 for (i
= 0; i
< span
->len
; ++i
) {
1166 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
1171 if (span
->text
[i
].bbox
.y0
> y
- 1) {
1175 len
= runetochar (cbuf
, &span
->text
[i
].c
);
1176 if (sizeof (buf
) - 1 - (p
- buf
) > len
) {
1178 for (k
= 0; k
< len
; ++k
)
1190 ret
= regexec (re
, buf
, 1, &rm
, 0);
1192 if (ret
!= REG_NOMATCH
) {
1195 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1196 printd ("msg regexec error `%.*s'",
1197 (int) size
, errbuf
);
1198 fz_free_text_span (state
.ctx
, text
);
1199 state
.freepage (u
.ptr
);
1206 fz_point p1
, p2
, p3
, p4
;
1210 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1211 c
+= runelen (span
->text
[a
].c
);
1213 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1214 c
+= runelen (span
->text
[b
].c
);
1217 if (runelen (span
->text
[b
].c
) > 1) {
1220 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1221 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1232 switch (state
.type
) {
1234 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1235 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1243 p1
= fz_transform_point (ctm
, p1
);
1244 p2
= fz_transform_point (ctm
, p2
);
1245 p3
= fz_transform_point (ctm
, p3
);
1246 p4
= fz_transform_point (ctm
, p4
);
1249 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1256 printd ("progress 1 found at %d `%.*s' in %f sec",
1257 pageno
, (int) (rm
.rm_eo
- rm
.rm_so
), &buf
[rm
.rm_so
],
1261 printd ("match %d %d %f %f %f %f %f %f %f %f",
1279 fz_free_text_span (state
.ctx
, text
);
1280 state
.freepage (u
.ptr
);
1285 printd ("progress 1 no matches %f sec", end
- start
);
1287 printd ("clearrects");
1290 static void set_tex_params (int colorspace
)
1292 switch (colorspace
) {
1294 state
.texiform
= GL_RGBA8
;
1295 state
.texform
= GL_RGBA
;
1296 state
.texty
= GL_UNSIGNED_BYTE
;
1297 state
.colorspace
= fz_device_rgb
;
1300 state
.texiform
= GL_RGBA8
;
1301 state
.texform
= GL_BGRA
;
1302 state
.texty
= fz_is_big_endian ()
1303 ? GL_UNSIGNED_INT_8_8_8_8
1304 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1305 state
.colorspace
= fz_device_bgr
;
1308 state
.texiform
= GL_LUMINANCE_ALPHA
;
1309 state
.texform
= GL_LUMINANCE_ALPHA
;
1310 state
.texty
= GL_UNSIGNED_BYTE
;
1311 state
.colorspace
= fz_device_gray
;
1314 errx (1, "invalid colorspce %d", colorspace
);
1318 static void realloctexts (int texcount
)
1322 if (texcount
== state
.texcount
) return;
1324 if (texcount
< state
.texcount
) {
1325 glDeleteTextures (state
.texcount
- texcount
,
1326 state
.texids
+ texcount
);
1329 size
= texcount
* sizeof (*state
.texids
);
1330 state
.texids
= realloc (state
.texids
, size
);
1331 if (!state
.texids
) {
1332 err (1, "realloc texids %" FMT_s
, size
);
1335 size
= texcount
* sizeof (*state
.texowners
);
1336 state
.texowners
= realloc (state
.texowners
, size
);
1337 if (!state
.texowners
) {
1338 err (1, "realloc texowners %" FMT_s
, size
);
1340 if (texcount
> state
.texcount
) {
1343 glGenTextures (texcount
- state
.texcount
,
1344 state
.texids
+ state
.texcount
);
1345 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1346 state
.texowners
[i
].w
= -1;
1347 state
.texowners
[i
].slice
= NULL
;
1350 state
.texcount
= texcount
;
1354 static void * mainloop (void *unused
)
1357 int len
, ret
, oldlen
= 0;
1362 errx (1, "readlen returned 0");
1365 if (oldlen
< len
+ 1) {
1366 p
= realloc (p
, len
+ 1);
1368 err (1, "realloc %d failed", len
+ 1);
1375 if (!strncmp ("open", p
, 4)) {
1378 char *filename
= p
+ 5;
1380 filenamelen
= strlen (filename
);
1381 password
= filename
+ filenamelen
+ 1;
1383 openxref (filename
, password
);
1386 printd ("msg Opened %s (press h/F1 to get help)", filename
);
1387 state
.needoutline
= 1;
1389 else if (!strncmp ("cs", p
, 2)) {
1392 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1394 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1397 set_tex_params (colorspace
);
1398 for (i
= 0; i
< state
.texcount
; ++i
) {
1399 state
.texowners
[i
].w
= -1;
1400 state
.texowners
[i
].slice
= NULL
;
1404 else if (!strncmp ("freepage", p
, 8)) {
1407 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1409 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1413 else if (!strncmp ("freetile", p
, 8)) {
1416 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1418 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1422 else if (!strncmp ("search", p
, 6)) {
1423 int icase
, pageno
, y
, ret
, len2
, forward
;
1427 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1428 &icase
, &pageno
, &y
, &forward
, &len2
);
1430 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1433 pattern
= p
+ 6 + len2
;
1434 ret
= regcomp (&re
, pattern
,
1435 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1440 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1441 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1444 search (&re
, pageno
, y
, forward
);
1448 else if (!strncmp ("geometry", p
, 8)) {
1452 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1454 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1462 for (i
= 0; i
< state
.texcount
; ++i
) {
1463 state
.texowners
[i
].slice
= NULL
;
1469 unlock ("geometry");
1470 printd ("continue %d", state
.pagecount
);
1472 else if (!strncmp ("reqlayout", p
, 9)) {
1473 int rotate
, proportional
;
1476 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1478 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1481 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1484 state
.rotate
= rotate
;
1485 state
.proportional
= proportional
;
1489 unlock ("reqlayout");
1490 printd ("continue %d", state
.pagecount
);
1492 else if (!strncmp ("page", p
, 4)) {
1495 int pageno
, pindex
, ret
;
1497 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1499 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1504 page
= loadpage (pageno
, pindex
);
1508 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1510 else if (!strncmp ("tile", p
, 4)) {
1511 int x
, y
, w
, h
, ret
;
1516 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d",
1517 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
);
1519 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1524 tile
= rendertile (page
, x
, y
, w
, h
);
1528 printd ("tile %d %d %" FMT_ptr
" %u %f",
1530 FMT_ptr_cast2 (tile
),
1531 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1534 else if (!strncmp ("settrim", p
, 7)) {
1538 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1539 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1541 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1545 state
.trimmargins
= trimmargins
;
1546 state
.needoutline
= 1;
1547 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1549 state
.trimfuzz
= fuzz
;
1551 state
.pagedimcount
= 0;
1552 free (state
.pagedims
);
1553 state
.pagedims
= NULL
;
1558 printd ("continue %d", state
.pagecount
);
1560 else if (!strncmp ("sliceh", p
, 6)) {
1563 ret
= sscanf (p
+ 6, " %d", &h
);
1565 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1567 if (h
!= state
.sliceheight
) {
1570 state
.sliceheight
= h
;
1571 for (i
= 0; i
< state
.texcount
; ++i
) {
1572 state
.texowners
[i
].w
= -1;
1573 state
.texowners
[i
].h
= -1;
1574 state
.texowners
[i
].slice
= NULL
;
1578 else if (!strncmp ("interrupt", p
, 9)) {
1579 printd ("vmsg interrupted");
1582 errx (1, "unknown command %.*s", len
, p
);
1588 CAMLprim value
ml_realloctexts (value texcount_v
)
1590 CAMLparam1 (texcount_v
);
1593 if (trylock ("ml_realloctexts")) {
1597 realloctexts (Int_val (texcount_v
));
1599 unlock ("ml_realloctexts");
1602 CAMLreturn (Val_bool (ok
));
1605 static void showsel (struct page
*page
, int ox
, int oy
)
1609 struct mark first
, last
;
1611 first
= page
->fmark
;
1614 if (!first
.span
|| !last
.span
) return;
1616 glEnable (GL_BLEND
);
1617 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1618 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1620 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1621 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1622 for (span
= first
.span
; span
; span
= span
->next
) {
1625 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1630 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1631 j
= MIN (first
.i
, last
.i
);
1632 k
= MAX (first
.i
, last
.i
);
1634 else if (span
== first
.span
) {
1637 else if (span
== last
.span
) {
1641 for (i
= j
; i
<= k
; ++i
) {
1642 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1644 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1651 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1653 if (span
== last
.span
) break;
1655 glDisable (GL_BLEND
);
1660 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
1663 fz_link
*link
, *links
;
1665 switch (page
->type
) {
1667 links
= page
->u
.pdfpage
->links
;
1671 links
= page
->u
.xpspage
->links
;
1678 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1679 glEnable (GL_LINE_STIPPLE
);
1680 glLineStipple (0.5, 0xcccc);
1682 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1683 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1684 ctm
= fz_concat (pagectm (page
), fz_translate (xoff
, yoff
));
1687 for (link
= links
; link
; link
= link
->next
) {
1688 fz_point p1
, p2
, p3
, p4
;
1690 p1
.x
= link
->rect
.x0
;
1691 p1
.y
= link
->rect
.y0
;
1693 p2
.x
= link
->rect
.x1
;
1694 p2
.y
= link
->rect
.y0
;
1696 p3
.x
= link
->rect
.x1
;
1697 p3
.y
= link
->rect
.y1
;
1699 p4
.x
= link
->rect
.x0
;
1700 p4
.y
= link
->rect
.y1
;
1702 p1
= fz_transform_point (ctm
, p1
);
1703 p2
= fz_transform_point (ctm
, p2
);
1704 p3
= fz_transform_point (ctm
, p3
);
1705 p4
= fz_transform_point (ctm
, p4
);
1707 switch (link
->dest
.kind
) {
1708 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1709 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
1710 default: glColor3ub (0, 0, 0); break;
1713 glVertex2f (p1
.x
, p1
.y
);
1714 glVertex2f (p2
.x
, p2
.y
);
1715 glVertex2f (p3
.x
, p3
.y
);
1716 glVertex2f (p4
.x
, p4
.y
);
1720 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1721 glDisable (GL_LINE_STIPPLE
);
1724 static int compareslinks (const void *l
, const void *r
)
1726 struct slink
const *ls
= l
;
1727 struct slink
const *rs
= r
;
1728 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
1729 return rs
->bbox
.x0
- rs
->bbox
.x0
;
1731 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1734 static void droptext (struct page
*page
)
1737 fz_free_text_span (state
.ctx
, page
->text
);
1740 page
->fmark
.span
= NULL
;
1741 page
->lmark
.span
= NULL
;
1746 static void dropslinks (struct page
*page
)
1749 free (page
->slinks
);
1750 page
->slinks
= NULL
;
1751 page
->slinkcount
= 0;
1755 static void ensureslinks (struct page
*page
)
1759 size_t slinksize
= sizeof (*page
->slinks
);
1760 fz_link
*link
, *links
;
1762 if (state
.gen
!= page
->gen
) {
1765 page
->gen
= state
.gen
;
1767 if (page
->slinks
) return;
1769 switch (page
->type
) {
1771 links
= page
->u
.pdfpage
->links
;
1772 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
1773 state
.pagedims
[page
->pdimno
].ctm
);
1777 links
= page
->u
.xpspage
->links
;
1778 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
1785 for (link
= links
; link
; link
= link
->next
) {
1789 page
->slinkcount
= count
;
1790 page
->slinks
= calloc (count
, slinksize
);
1791 if (!page
->slinks
) {
1792 err (1, "realloc slinks %d", count
);
1795 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
1796 page
->slinks
[i
].link
= link
;
1797 page
->slinks
[i
].bbox
=
1798 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
1800 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
1804 static void highlightslinks (struct page
*page
, int xoff
, int yoff
, int noff
)
1808 struct slink
*slink
;
1809 double x0
, y0
, x1
, y1
, w
;
1811 ensureslinks (page
);
1812 glColor3ub (0xc3, 0xb0, 0x91);
1813 for (i
= 0; i
< page
->slinkcount
; ++i
) {
1814 slink
= &page
->slinks
[i
];
1816 snprintf (buf
, sizeof (buf
), "%d", i
+ noff
);
1817 x0
= slink
->bbox
.x0
+ xoff
- 5;
1818 y1
= slink
->bbox
.y0
+ yoff
- 5;
1820 w
= measure_string (state
.face
, 12, buf
);
1822 glRectd (x0
, y0
, x1
, y1
);
1825 glEnable (GL_BLEND
);
1826 glEnable (GL_TEXTURE_2D
);
1827 glColor3ub (0, 0, 0);
1828 for (i
= 0; i
< page
->slinkcount
; ++i
) {
1829 slink
= &page
->slinks
[i
];
1831 snprintf (buf
, sizeof (buf
), "%d", i
+ noff
);
1832 x0
= slink
->bbox
.x0
+ xoff
;
1833 y0
= slink
->bbox
.y0
+ yoff
+ 12;
1834 draw_string (state
.face
, 12, x0
, y0
, buf
);
1836 glDisable (GL_TEXTURE_2D
);
1837 glDisable (GL_BLEND
);
1840 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
1843 struct slice
*slice1
;
1846 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
1847 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
1849 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
1850 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1851 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1855 int texindex
= state
.texindex
++ % state
.texcount
;
1857 if (state
.texowners
[texindex
].w
== tile
->w
) {
1858 if (state
.texowners
[texindex
].h
>= slice
->h
) {
1862 state
.texowners
[texindex
].h
= slice
->h
;
1866 state
.texowners
[texindex
].h
= slice
->h
;
1869 state
.texowners
[texindex
].w
= tile
->w
;
1870 state
.texowners
[texindex
].slice
= slice
;
1871 slice
->texindex
= texindex
;
1873 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
1875 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1883 tile
->pixmap
->samples
+offset
1887 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1895 tile
->pixmap
->samples
+offset
1901 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
1903 CAMLparam2 (args_v
, ptr_v
);
1904 int dispx
= Int_val (Field (args_v
, 0));
1905 int dispy
= Int_val (Field (args_v
, 1));
1906 int dispw
= Int_val (Field (args_v
, 2));
1907 int disph
= Int_val (Field (args_v
, 3));
1908 int tilex
= Int_val (Field (args_v
, 4));
1909 int tiley
= Int_val (Field (args_v
, 5));
1910 char *s
= String_val (ptr_v
);
1911 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
1913 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1915 int slicey
, firstslice
;
1916 struct slice
*slice
;
1918 firstslice
= tiley
/ tile
->sliceheight
;
1919 slice
= &tile
->slices
[firstslice
];
1920 slicey
= tiley
% tile
->sliceheight
;
1925 dh
= slice
->h
- slicey
;
1926 dh
= MIN (disph
, dh
);
1927 uploadslice (tile
, slice
);
1931 glTexCoord2i (tilex
, slicey
);
1932 glVertex2i (dispx
, dispy
);
1934 glTexCoord2i (tilex
+dispw
, slicey
);
1935 glVertex2i (dispx
+dispw
, dispy
);
1937 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
1938 glVertex2i (dispx
+dispw
, dispy
+dh
);
1940 glTexCoord2i (tilex
, slicey
+dh
);
1941 glVertex2i (dispx
, dispy
+dh
);
1948 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
1952 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1953 CAMLreturn (Val_unit
);
1956 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
1957 value xoff_v
, value yoff_v
,
1960 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, noff_v
);
1961 int xoff
= Int_val (xoff_v
);
1962 int yoff
= Int_val (yoff_v
);
1963 int noff
= Int_val (noff_v
);
1964 char *s
= String_val (ptr_v
);
1965 int hlmask
= Int_val (hlinks_v
);
1966 struct page
*page
= parse_pointer ("ml_postprocess", s
);
1968 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
1969 if (trylock ("ml_postprocess")) {
1973 page
->slinkindexbase
= noff
;
1975 highlightslinks (page
, xoff
, yoff
, noff
);
1976 noff
= page
->slinkcount
;
1978 showsel (page
, xoff
, yoff
);
1979 unlock ("ml_postprocess");
1982 CAMLreturn (Val_int (noff
));
1985 static fz_link
*getlink (struct page
*page
, int x
, int y
)
1989 fz_link
*link
, *links
;
1991 switch (page
->type
) {
1993 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
1994 links
= page
->u
.pdfpage
->links
;
1999 links
= page
->u
.xpspage
->links
;
2008 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
2009 ctm
= fz_invert_matrix (ctm
);
2010 p
= fz_transform_point (ctm
, p
);
2012 for (link
= links
; link
; link
= link
->next
) {
2013 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2014 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2022 static void ensuretext (struct page
*page
)
2024 if (state
.gen
!= page
->gen
) {
2027 page
->gen
= state
.gen
;
2032 page
->text
= fz_new_text_span (state
.ctx
);
2033 tdev
= fz_new_text_device (state
.ctx
, page
->text
);
2034 fz_run_display_list (page
->dlist
,
2037 fz_infinite_bbox
, NULL
);
2038 fz_free_device (tdev
);
2042 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2044 CAMLparam2 (start_page_v
, dir_v
);
2046 int i
, dir
= Int_val (dir_v
);
2047 int start_page
= Int_val (start_page_v
);
2048 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2050 ret_v
= Val_int (0);
2051 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2055 lock ("ml_findpage_with_links");
2056 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2059 switch (state
.type
) {
2062 pdf_page
*page
= pdf_load_page (state
.u
.pdf
, i
);
2063 found
= !!page
->links
;
2069 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2070 found
= !!page
->links
;
2076 ARSERT ("invalid document type");
2080 ret_v
= caml_alloc_small (1, 1);
2081 Field (ret_v
, 0) = Val_int (i
);
2086 unlock ("ml_findpage_with_links");
2092 enum { dir_first
, dir_last
};
2093 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2095 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2097 CAMLparam2 (ptr_v
, dir_v
);
2098 CAMLlocal2 (ret_v
, pos_v
);
2100 int dirtag
, i
, slinkindex
;
2101 struct slink
*found
= NULL
,*slink
;
2102 char *s
= String_val (ptr_v
);
2104 page
= parse_pointer ("ml_findlink", s
);
2105 ensureslinks (page
);
2107 ret_v
= Val_int (0);
2108 if (Is_block (dir_v
)) {
2109 dirtag
= Tag_val (dir_v
);
2111 case dir_first_visible
:
2113 int x0
, y0
, dir
, first_index
, last_index
;
2115 pos_v
= Field (dir_v
, 0);
2116 x0
= Int_val (Field (pos_v
, 0));
2117 y0
= Int_val (Field (pos_v
, 1));
2118 dir
= Int_val (Field (pos_v
, 2));
2123 last_index
= page
->slinkcount
;
2126 first_index
= page
->slinkcount
- 1;
2130 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2131 slink
= &page
->slinks
[i
];
2132 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2141 slinkindex
= Int_val (Field (dir_v
, 0));
2142 found
= &page
->slinks
[slinkindex
];
2143 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2144 slink
= &page
->slinks
[i
];
2145 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2153 slinkindex
= Int_val (Field (dir_v
, 0));
2154 found
= &page
->slinks
[slinkindex
];
2155 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2156 slink
= &page
->slinks
[i
];
2157 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2165 slinkindex
= Int_val (Field (dir_v
, 0));
2166 found
= &page
->slinks
[slinkindex
];
2167 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2168 slink
= &page
->slinks
[i
];
2169 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2177 slinkindex
= Int_val (Field (dir_v
, 0));
2178 found
= &page
->slinks
[slinkindex
];
2179 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2180 slink
= &page
->slinks
[i
];
2181 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2190 dirtag
= Int_val (dir_v
);
2193 found
= page
->slinks
;
2198 found
= page
->slinks
+ (page
->slinkcount
- 1);
2204 ret_v
= caml_alloc_small (2, 1);
2205 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2211 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2217 switch (link->dest.kind) { \
2218 case FZ_LINK_GOTO: \
2222 pageno = link->dest.ld.gotor.page; \
2226 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2227 p.y = link->dest.ld.gotor.lt.y; \
2228 p = fz_transform_point (pdim->lctm, p); \
2230 tup_v = caml_alloc_tuple (2); \
2231 ret_v = caml_alloc_small (1, ugoto); \
2232 Field (tup_v, 0) = Val_int (pageno); \
2233 Field (tup_v, 1) = Val_int (p.y); \
2234 Field (ret_v, 0) = tup_v; \
2239 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2240 ret_v = caml_alloc_small (1, uuri); \
2241 Field (ret_v, 0) = str_v; \
2244 case FZ_LINK_LAUNCH: \
2245 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2246 ret_v = caml_alloc_small (1, ulaunch); \
2247 Field (ret_v, 0) = str_v; \
2250 case FZ_LINK_NAMED: \
2251 str_v = caml_copy_string (link->dest.ld.named.named); \
2252 ret_v = caml_alloc_small (1, unamed); \
2253 Field (ret_v, 0) = str_v; \
2256 case FZ_LINK_GOTOR: \
2257 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2258 pageno = link->dest.ld.gotor.page; \
2259 tup_v = caml_alloc_tuple (2); \
2260 ret_v = caml_alloc_small (1, uremote); \
2261 Field (tup_v, 0) = str_v; \
2262 Field (tup_v, 1) = Val_int (pageno); \
2263 Field (ret_v, 0) = tup_v; \
2270 snprintf (buf, sizeof (buf), \
2271 "unhandled link kind %d", link->dest.kind); \
2272 str_v = caml_copy_string (buf); \
2273 ret_v = caml_alloc_small (1, uunexpected); \
2274 Field (ret_v, 0) = str_v; \
2280 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2282 CAMLparam2 (ptr_v
, n_v
);
2283 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2286 struct pagedim
*pdim
;
2287 char *s
= String_val (ptr_v
);
2289 ret_v
= Val_int (0);
2290 page
= parse_pointer ("ml_getlink", s
);
2291 ensureslinks (page
);
2292 pdim
= &state
.pagedims
[page
->pdimno
];
2293 link
= page
->slinks
[Int_val (n_v
)].link
;
2298 CAMLprim value
ml_getlink2 (value ptr_v
, value n_v
)
2300 CAMLparam2 (ptr_v
, n_v
);
2301 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2305 struct pagedim
*pdim
;
2306 char *s
= String_val (ptr_v
);
2308 ret_v
= Val_int (0);
2309 page
= parse_pointer ("ml_getlink2", s
);
2310 ensureslinks (page
);
2311 linkno
= Int_val (n_v
) - page
->slinkindexbase
;
2312 if (linkno
>= 0 && linkno
< page
->slinkcount
) {
2313 pdim
= &state
.pagedims
[page
->pdimno
];
2314 link
= page
->slinks
[linkno
].link
;
2320 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2322 CAMLparam2 (ptr_v
, n_v
);
2325 struct slink
*slink
;
2326 char *s
= String_val (ptr_v
);
2328 page
= parse_pointer ("ml_getlinkrect", s
);
2329 ensureslinks (page
);
2331 slink
= &page
->slinks
[Int_val (n_v
)];
2332 ret_v
= caml_alloc_tuple (4);
2333 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2334 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2335 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2336 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2340 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2342 CAMLparam3 (ptr_v
, x_v
, y_v
);
2343 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2346 char *s
= String_val (ptr_v
);
2347 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2348 struct pagedim
*pdim
;
2350 ret_v
= Val_int (0);
2351 if (trylock ("ml_whatsunder")) {
2355 page
= parse_pointer ("ml_whatsunder", s
);
2356 pdim
= &state
.pagedims
[page
->pdimno
];
2357 x
+= pdim
->bounds
.x0
;
2358 y
+= pdim
->bounds
.y0
;
2359 link
= getlink (page
, x
, y
);
2368 for (span
= page
->text
; span
; span
= span
->next
) {
2369 for (i
= 0; i
< span
->len
; ++i
) {
2371 b
= &span
->text
[i
].bbox
;
2372 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
2374 span
->font
&& span
->font
->name
2376 : "Span has no font name"
2378 FT_FaceRec
*face
= span
->font
->ft_face
;
2379 if (face
&& face
->family_name
) {
2381 char *n1
= face
->family_name
;
2382 size_t l1
= strlen (n1
);
2383 size_t l2
= strlen (n2
);
2385 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2386 s
= malloc (l1
+ l2
+ 2);
2390 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2391 str_v
= caml_copy_string (s
);
2397 str_v
= caml_copy_string (n2
);
2399 ret_v
= caml_alloc_small (1, utext
);
2400 Field (ret_v
, 0) = str_v
;
2407 unlock ("ml_whatsunder");
2413 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2415 CAMLparam2 (ptr_v
, rect_v
);
2419 struct mark first
, last
;
2420 struct pagedim
*pdim
;
2421 int i
, x0
, x1
, y0
, y1
;
2422 char *s
= String_val (ptr_v
);
2424 if (trylock ("ml_seltext")) {
2428 page
= parse_pointer ("ml_seltext", s
);
2431 pdim
= &state
.pagedims
[page
->pdimno
];
2432 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2433 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2434 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2435 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2438 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2439 glColor3ub (128, 128, 128);
2440 glRecti (x0
, y0
, x1
, y1
);
2441 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2447 last
.i
= first
.i
= 0;
2448 first
.span
= page
->text
;
2449 for (span
= page
->text
; span
; span
= span
->next
) {
2450 for (i
= 0; i
< span
->len
; ++i
) {
2451 b
= &span
->text
[i
].bbox
;
2454 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
2459 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
2464 if (0 && selected
) {
2465 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2466 glColor3ub (128, 128, 128);
2467 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2468 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2473 if (y1
< y0
|| x1
< x0
) {
2476 if (first
.span
== last
.span
) {
2481 for (span
= first
.span
; span
&& span
!= last
.span
;
2482 span
= span
->next
) {
2495 first
.span
= last
.span
;
2501 page
->fmark
= first
;
2504 unlock ("ml_seltext");
2507 CAMLreturn (Val_unit
);
2510 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2515 for (i
= a
; i
<= b
; ++i
) {
2516 len
= runetochar (buf
, &span
->text
[i
].c
);
2517 ret
= fwrite (buf
, len
, 1, f
);
2520 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2521 len
, ret
, strerror (errno
));
2528 CAMLprim value
ml_copysel (value command_v
, value ptr_v
)
2534 char *s
= String_val (ptr_v
);
2535 char *command
= String_val (command_v
);
2537 if (trylock ("ml_copysel")) {
2541 page
= parse_pointer ("ml_sopysel", s
);
2543 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
2544 fprintf (stderr
, "nothing to copy\n");
2548 f
= popen (command
, "w");
2550 fprintf (stderr
, "failed to open sel pipe: %s\n",
2555 for (span
= page
->fmark
.span
;
2556 span
&& span
!= page
->lmark
.span
->next
;
2557 span
= span
->next
) {
2558 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
2559 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
2560 if (pipespan (f
, span
, a
, b
)) {
2564 if (putc ('\n', f
) == EOF
) {
2565 fprintf (stderr
, "failed break line on sel pipe: %s\n",
2571 page
->lmark
.span
= NULL
;
2572 page
->fmark
.span
= NULL
;
2576 int ret
= pclose (f
);
2578 if (errno
!= ECHILD
) {
2579 fprintf (stderr
, "failed to close sel pipe: %s\n",
2585 unlock ("ml_copysel");
2588 CAMLreturn (Val_unit
);
2591 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
2593 CAMLparam1 (pagedimno_v
);
2595 int pagedimno
= Int_val (pagedimno_v
);
2598 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
2599 if (trylock ("ml_getpdimrect")) {
2600 box
= fz_empty_rect
;
2603 box
= state
.pagedims
[pagedimno
].mediabox
;
2604 unlock ("ml_getpdimrect");
2607 Store_double_field (ret_v
, 0, box
.x0
);
2608 Store_double_field (ret_v
, 1, box
.x1
);
2609 Store_double_field (ret_v
, 2, box
.y0
);
2610 Store_double_field (ret_v
, 3, box
.y1
);
2615 static double getmaxw (void)
2621 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2624 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2625 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2628 maxw
= MAX (w
, maxw
);
2633 CAMLprim value
ml_getmaxw (value unit_v
)
2635 CAMLparam1 (unit_v
);
2639 if (trylock ("ml_getmaxw")) {
2643 unlock ("ml_getmaxw");
2645 ret_v
= caml_copy_double (maxw
);
2649 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
2651 CAMLparam3 (winw_v
, winh_v
, dw_v
);
2655 double maxw
= 0.0, maxh
= 0.0;
2657 double winw
= Int_val (winw_v
);
2658 double winh
= Int_val (winh_v
);
2659 double dw
= Int_val (dw_v
);
2660 double pw
= 1.0, ph
= 1.0, num
, den
;
2662 if (trylock ("ml_zoom_for_height")) {
2666 if (state
.proportional
) {
2670 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2671 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
2673 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2674 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2675 y0
= MIN (p
->mediabox
.y0
, p
->mediabox
.y1
);
2676 y1
= MAX (p
->mediabox
.y0
, p
->mediabox
.y1
);
2681 if (state
.proportional
) {
2683 scaledh
= h
* scale
;
2690 if (scaledh
> maxh
) {
2697 num
= (winh
* pw
) + (ph
* dw
);
2701 unlock ("ml_zoom_for_height");
2703 ret_v
= caml_copy_double (zoom
);
2707 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
2709 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
2711 int pt
= Int_val(pt_v
);
2712 int x
= Int_val (x_v
);
2713 int y
= Int_val (y_v
);
2716 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
2717 ret_v
= caml_copy_double (w
);
2721 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
2723 CAMLparam2 (pt_v
, string_v
);
2725 int pt
= Int_val (pt_v
);
2728 w
= measure_string (state
.face
, pt
, String_val (string_v
));
2729 ret_v
= caml_copy_double (w
);
2733 CAMLprim value
ml_getpagebox (value opaque_v
)
2735 CAMLparam1 (opaque_v
);
2739 char *s
= String_val (opaque_v
);
2740 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
2742 ret_v
= caml_alloc_tuple (4);
2743 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
2744 dev
->hints
|= FZ_IGNORE_SHADE
;
2746 switch (page
->type
) {
2748 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
2752 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
2756 bbox
= fz_infinite_bbox
;
2760 fz_free_device (dev
);
2761 Field (ret_v
, 0) = Val_int (bbox
.x0
);
2762 Field (ret_v
, 1) = Val_int (bbox
.y0
);
2763 Field (ret_v
, 2) = Val_int (bbox
.x1
);
2764 Field (ret_v
, 3) = Val_int (bbox
.y1
);
2769 CAMLprim value
ml_setaalevel (value level_v
)
2771 CAMLparam1 (level_v
);
2773 state
.aalevel
= Int_val (level_v
);
2774 CAMLreturn (Val_unit
);
2778 #include <X11/Xlib.h>
2784 GLXDrawable drawable
;
2787 #include "keysym2ucs.c"
2789 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
2791 CAMLparam1 (keysym_v
);
2793 KeySym keysym
= Int_val (keysym_v
);
2798 rune
= keysym2ucs (keysym
);
2799 len
= runetochar (buf
, &rune
);
2801 str_v
= caml_copy_string (buf
);
2805 CAMLprim value
ml_glx (value win_v
)
2809 XVisualInfo
*visual
;
2810 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
2812 glx
.dpy
= XOpenDisplay (NULL
);
2814 caml_failwith ("XOpenDisplay failed");
2817 screen
= DefaultScreen (glx
.dpy
);
2818 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
2820 XCloseDisplay (glx
.dpy
);
2822 caml_failwith ("glXChooseVisual");
2825 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
2827 XCloseDisplay (glx
.dpy
);
2830 caml_failwith ("glXCreateContext");
2834 if (!glXMakeCurrent (glx
.dpy
, Int_val (win_v
), glx
.ctx
)) {
2835 glXDestroyContext (glx
.dpy
, glx
.ctx
);
2836 XCloseDisplay (glx
.dpy
);
2839 caml_failwith ("glXMakeCurrent");
2841 glx
.drawable
= Int_val (win_v
);
2843 CAMLreturn (Val_unit
);
2846 CAMLprim value
ml_swapb (value unit_v
)
2848 CAMLparam1 (unit_v
);
2849 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
2850 CAMLreturn (Val_unit
);
2853 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
2854 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
2856 CAMLprim value
ml_platform (value unit_v
)
2858 CAMLparam1 (unit_v
);
2859 int platid
= piunknown
;
2861 #if defined __linux__
2863 #elif defined __CYGWIN__
2865 #elif defined __DragonFly__
2866 platid
= pidragonflybsd
;
2867 #elif defined __FreeBSD__
2869 #elif defined __OpenBSD__
2871 #elif defined __NetBSD__
2873 #elif defined __sun__
2875 #elif defined __APPLE__
2878 CAMLreturn (Val_int (platid
));
2881 CAMLprim value
ml_cloexec (value fd_v
)
2884 int fd
= Int_val (fd_v
);
2886 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
2887 uerror ("fcntl", Nothing
);
2889 CAMLreturn (Val_unit
);
2892 CAMLprim value
ml_init (value pipe_v
, value params_v
)
2894 CAMLparam2 (pipe_v
, params_v
);
2895 CAMLlocal2 (trim_v
, fuzz_v
);
2902 struct sigaction sa
;
2905 state
.cr
= Int_val (Field (pipe_v
, 0));
2906 state
.cw
= Int_val (Field (pipe_v
, 1));
2907 state
.rotate
= Int_val (Field (params_v
, 0));
2908 state
.proportional
= Bool_val (Field (params_v
, 1));
2909 trim_v
= Field (params_v
, 2);
2910 texcount
= Int_val (Field (params_v
, 3));
2911 state
.sliceheight
= Int_val (Field (params_v
, 4));
2912 mustoresize
= Int_val (Field (params_v
, 5));
2913 colorspace
= Int_val (Field (params_v
, 6));
2914 fontpath
= String_val (Field (params_v
, 7));
2916 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
2918 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
2919 fuzz_v
= Field (trim_v
, 1);
2920 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
2921 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
2922 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
2923 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
2925 set_tex_params (colorspace
);
2928 state
.face
= load_font (fontpath
);
2932 void *base
= pdf_find_substitute_font (0, 0, 0, 0, &len
);
2934 state
.face
= load_builtin_font (base
, len
);
2936 if (!state
.face
) _exit (1);
2938 realloctexts (texcount
);
2941 sa
.sa_handler
= SIG_DFL
;
2942 if (sigemptyset (&sa
.sa_mask
)) {
2943 err (1, "sigemptyset");
2945 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
2946 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
2947 err (1, "sigaction");
2951 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
2953 errx (1, "pthread_create: %s", strerror (ret
));
2956 CAMLreturn (Val_unit
);