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 */
28 #include <caml/fail.h>
29 #include <caml/alloc.h>
30 #include <caml/memory.h>
31 #include <caml/unixsupport.h>
35 #include <mupdf-internal.h>
37 #include <muxps-internal.h>
40 #include FT_FREETYPE_H
45 extern char **environ
;
48 #define MIN(a,b) ((a) < (b) ? (a) : (b))
49 #define MAX(a,b) ((a) > (b) ? (a) : (b))
52 #define NORETURN __attribute__ ((noreturn))
53 #define UNUSED __attribute__ ((unused))
54 #define OPTIMIZE(n) __attribute__ ((optimize ("O"#n)))
55 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
60 #define GCC_FMT_ATTR(a, b)
66 #define FMT_ptr_cast(p) (p)
67 #define FMT_ptr_cast2(p) (p)
69 static void NORETURN
GCC_FMT_ATTR (2, 3)
70 err (int exitcode
, const char *fmt
, ...)
77 vfprintf (stderr
, fmt
, ap
);
79 fprintf (stderr
, ": %s\n", strerror (savederrno
));
84 static void NORETURN
GCC_FMT_ATTR (2, 3)
85 errx (int exitcode
, const char *fmt
, ...)
90 vfprintf (stderr
, fmt
, ap
);
97 #ifndef GL_TEXTURE_RECTANGLE_ARB
98 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
102 #define GL_BGRA 0x80E1
105 #ifndef GL_UNSIGNED_INT_8_8_8_8
106 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
109 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
110 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
114 #define lprintf printf
119 #define ARSERT(cond) for (;;) { \
121 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
136 struct slice slices
[1];
147 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
155 enum { DPDF
, DXPS
, DCBZ
};
164 fz_text_sheet
*sheet
;
171 fz_display_list
*dlist
;
173 struct slink
*slinks
;
178 void (*freepage
) (void *);
184 struct pagedim
*pagedims
;
203 fz_colorspace
*colorspace
;
225 void (*closedoc
) (void);
226 void (*freepage
) (void *);
229 static void UNUSED
debug_rect (const char *cap
, fz_rect r
)
231 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
234 static void UNUSED
debug_bbox (const char *cap
, fz_bbox r
)
236 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
239 static void UNUSED
debug_matrix (const char *cap
, fz_matrix m
)
241 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
242 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
245 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
247 static void lock (const char *cap
)
249 int ret
= pthread_mutex_lock (&mutex
);
251 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
255 static void unlock (const char *cap
)
257 int ret
= pthread_mutex_unlock (&mutex
);
259 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
263 static int trylock (const char *cap
)
265 int ret
= pthread_mutex_trylock (&mutex
);
267 if (ret
&& ret
!= EBUSY
) {
268 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
273 static void *parse_pointer (const char *cap
, const char *s
)
278 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
280 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
285 static double now (void)
289 if (gettimeofday (&tv
, NULL
)) {
290 err (1, "gettimeofday");
292 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
295 static int hasdata (void)
298 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
299 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
303 CAMLprim value
ml_hasdata (value fd_v
)
308 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
309 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
310 CAMLreturn (Val_bool (avail
> 0));
313 static void readdata (void *p
, int size
)
318 n
= read (state
.cr
, p
, size
);
320 if (errno
== EINTR
) goto again
;
321 err (1, "read (req %d, ret %zd)", size
, n
);
324 if (!n
) errx (1, "EOF while reading");
325 errx (1, "read (req %d, ret %zd)", size
, n
);
329 static void writedata (char *p
, int size
)
334 buf
[0] = (size
>> 24) & 0xff;
335 buf
[1] = (size
>> 16) & 0xff;
336 buf
[2] = (size
>> 8) & 0xff;
337 buf
[3] = (size
>> 0) & 0xff;
339 n
= write (state
.cw
, buf
, 4);
341 if (!n
) errx (1, "EOF while writing length");
342 err (1, "write %zd", n
);
345 n
= write (state
.cw
, p
, size
);
347 if (!n
) errx (1, "EOF while writing data");
348 err (1, "write (req %d, ret %zd)", size
, n
);
352 static int readlen (void)
357 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
360 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
368 if (!buf
) err (1, "malloc for temp buf (%d bytes) failed", size
);
371 len
= vsnprintf (buf
, size
, fmt
, ap
);
374 if (len
> -1 && len
< size
) {
375 writedata (buf
, len
);
385 buf
= realloc (buf
, size
);
390 static void closepdf (void)
393 pdf_close_document (state
.u
.pdf
);
398 static void closexps (void)
401 xps_close_document (state
.u
.xps
);
406 static void closecbz (void)
409 cbz_close_document (state
.u
.cbz
);
414 static void freepdfpage (void *ptr
)
416 pdf_free_page (state
.u
.pdf
, ptr
);
419 static void freeemptypdfpage (void *ptr
)
424 static void freexpspage (void *ptr
)
426 xps_free_page (state
.u
.xps
, ptr
);
429 static void freecbzpage (void *ptr
)
431 cbz_free_page (state
.u
.cbz
, ptr
);
434 static void openxref (char *filename
, char *password
)
438 for (i
= 0; i
< state
.texcount
; ++i
) {
439 state
.texowners
[i
].w
= -1;
440 state
.texowners
[i
].slice
= NULL
;
443 if (state
.closedoc
) state
.closedoc ();
445 len
= strlen (filename
);
451 ext
[0] = tolower ((int) filename
[len
-3]);
452 ext
[1] = tolower ((int) filename
[len
-2]);
453 ext
[2] = tolower ((int) filename
[len
-1]);
455 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
458 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
463 if (state
.pagedims
) {
464 free (state
.pagedims
);
465 state
.pagedims
= NULL
;
467 state
.pagedimcount
= 0;
469 fz_set_aa_level (state
.ctx
, state
.aalevel
);
470 switch (state
.type
) {
472 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
473 if (pdf_needs_password (state
.u
.pdf
)) {
474 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
476 errx (1, "invalid password");
479 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
480 state
.closedoc
= closepdf
;
481 state
.freepage
= freepdfpage
;
485 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
486 state
.pagecount
= xps_count_pages (state
.u
.xps
);
487 state
.closedoc
= closexps
;
488 state
.freepage
= freexpspage
;
492 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
493 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
494 state
.closedoc
= closecbz
;
495 state
.freepage
= freecbzpage
;
500 static void pdfinfo (void)
502 if (state
.type
== DPDF
) {
505 printd ("info PDF version\t%d.%d",
506 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
508 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
512 char *items
[] = { "Title", "Author", "Creator",
513 "Producer", "CreationDate" };
515 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
516 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
517 s
= pdf_to_utf8 (state
.ctx
, obj
);
520 printd ("title %s", s
);
522 printd ("info %s\t%s", items
[i
], s
);
524 fz_free (state
.ctx
, s
);
531 static void unlinktile (struct tile
*tile
)
535 for (i
= 0; i
< tile
->slicecount
; ++i
) {
536 struct slice
*s
= &tile
->slices
[i
];
538 if (s
->texindex
!= -1) {
539 if (state
.texowners
[s
->texindex
].slice
== s
) {
540 state
.texowners
[s
->texindex
].slice
= NULL
;
546 static void freepage (struct page
*page
)
549 fz_free_text_page (state
.ctx
, page
->text
);
552 fz_free_text_sheet (state
.ctx
, page
->sheet
);
557 page
->freepage (page
->u
.ptr
);
558 fz_free_display_list (state
.ctx
, page
->dlist
);
562 static void freetile (struct tile
*tile
)
566 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
569 fz_drop_pixmap (state
.ctx
, state
.pig
);
571 state
.pig
= tile
->pixmap
;
579 static int cacheline32bytes
;
581 static void __attribute__ ((constructor
)) clcheck (void)
583 char **envp
= environ
;
588 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
590 cacheline32bytes
= auxv
[1] == 32;
596 static void OPTIMIZE (3) clearpixmap (fz_pixmap
*pixmap
)
598 if (cacheline32bytes
) {
599 intptr_t a1
, a2
, diff
;
600 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
601 vector
unsigned char v
= vec_splat_u8 (-1);
602 vector
unsigned char *p
;
604 a1
= a2
= (intptr_t) pixmap
->samples
;
605 a2
= (a1
+ 31) & ~31;
610 while (a1
!= a2
) *(char *) a1
++ = 0xff;
611 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
612 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
614 vec_st (v
, i
+ 16, p
);
616 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
618 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
621 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
624 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
627 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
629 if (!pdim
->tctmready
) {
630 if (state
.trimmargins
) {
633 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
634 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
635 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
636 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
647 static fz_matrix
pagectm (struct page
*page
)
649 if (page
->type
== DPDF
) {
650 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
651 state
.pagedims
[page
->pdimno
].ctm
);
655 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
657 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
658 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
659 -pdim
->mediabox
.y0
), ctm
);
664 static void *loadpage (int pageno
, int pindex
)
667 struct page
*page
= NULL
;
669 page
= calloc (sizeof (struct page
), 1);
671 err (1, "calloc page %d", pageno
);
674 page
->dlist
= fz_new_display_list (state
.ctx
);
675 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
676 switch (state
.type
) {
679 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
680 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
681 page
->freepage
= freepdfpage
;
683 fz_catch (state
.ctx
) {
685 page
->freepage
= freeemptypdfpage
;
690 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
691 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
692 page
->freepage
= freexpspage
;
696 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
697 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
698 page
->freepage
= freecbzpage
;
701 fz_free_device (dev
);
703 page
->pdimno
= pindex
;
704 page
->pageno
= pageno
;
705 page
->sgen
= state
.gen
;
706 page
->tgen
= state
.gen
;
707 page
->type
= state
.type
;
712 static struct tile
*alloctile (int h
)
719 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
720 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
721 tile
= calloc (tilesize
, 1);
723 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
725 for (i
= 0; i
< slicecount
; ++i
) {
726 int sh
= MIN (h
, state
.sliceheight
);
727 tile
->slices
[i
].h
= sh
;
728 tile
->slices
[i
].texindex
= -1;
731 tile
->slicecount
= slicecount
;
732 tile
->sliceheight
= state
.sliceheight
;
741 static void obs_fill_image (fz_device
*dev
, fz_image
*image
, fz_matrix ctm
,
744 struct obs
*obs
= dev
->user
;
746 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
747 fz_bbox b
= fz_round_rect (fz_transform_rect (ctm
, fz_unit_rect
));
748 b
= fz_intersect_bbox (b
, obs
->b
);
749 obs
->cured
= b
.x0
== obs
->b
.x0
752 && b
.y1
== obs
->b
.y1
;
756 static int obscured (struct page
*page
, fz_bbox bbox
)
761 memset (&dev
, 0, sizeof (dev
));
762 memset (&obs
, 0, sizeof (obs
));
767 dev
.fill_image
= obs_fill_image
;
769 fz_run_display_list (page
->dlist
, &dev
, pagectm (page
), bbox
, NULL
);
773 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
)
778 struct pagedim
*pdim
;
780 tile
= alloctile (h
);
781 pdim
= &state
.pagedims
[page
->pdimno
];
786 bbox
.x1
= bbox
.x0
+ w
;
787 bbox
.y1
= bbox
.y0
+ h
;
790 if (state
.pig
->w
== w
792 && state
.pig
->colorspace
== state
.colorspace
) {
793 tile
->pixmap
= state
.pig
;
794 tile
->pixmap
->x
= bbox
.x0
;
795 tile
->pixmap
->y
= bbox
.y0
;
798 fz_drop_pixmap (state
.ctx
, state
.pig
);
804 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, bbox
);
809 if (!page
->u
.ptr
|| ((w
< 128 && h
< 128) || !obscured (page
, bbox
))) {
810 clearpixmap (tile
->pixmap
);
812 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
813 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
814 fz_free_device (dev
);
819 static void initpdims (void)
822 int pageno
, trim
, show
;
825 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
830 switch (state
.type
) {
832 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
834 if (state
.trimmargins
) {
839 page
= pdf_load_page (state
.u
.pdf
, pageno
);
840 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
841 trim
= state
.trimanew
|| !obj
;
848 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
849 dev
->hints
|= FZ_IGNORE_SHADE
;
850 ctm
= fz_invert_matrix (page
->ctm
);
851 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
852 fz_free_device (dev
);
854 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
855 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
856 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
857 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
858 rect
= fz_transform_rect (ctm
, rect
);
859 rect
= fz_intersect_rect (rect
, page
->mediabox
);
861 if (fz_is_empty_rect (rect
)) {
862 mediabox
= page
->mediabox
;
868 obj
= pdf_new_array (state
.ctx
, 4);
869 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
870 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
871 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
872 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
873 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
876 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
877 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
878 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
879 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
882 rotate
= page
->rotate
;
883 pdf_free_page (state
.u
.pdf
, page
);
885 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
887 printd ("progress %f Trimming %d",
888 (double) (pageno
+ 1) / state
.pagecount
,
892 fz_catch (state
.ctx
) {
898 mediabox
= pdf_to_rect (state
.ctx
,
899 pdf_dict_gets (pageobj
, "MediaBox"));
900 if (fz_is_empty_rect (mediabox
)) {
901 fprintf (stderr
, "cannot find page size for page %d\n",
909 cropbox
= pdf_to_rect (state
.ctx
,
910 pdf_dict_gets (pageobj
, "CropBox"));
911 if (!fz_is_empty_rect (cropbox
)) {
912 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
914 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
923 page
= xps_load_page (state
.u
.xps
, pageno
);
924 mediabox
= xps_bound_page (state
.u
.xps
, page
);
926 if (state
.trimmargins
) {
931 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
932 dev
->hints
|= FZ_IGNORE_SHADE
;
933 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
934 fz_free_device (dev
);
936 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
937 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
938 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
939 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
940 rect
= fz_intersect_rect (rect
, mediabox
);
942 if (!fz_is_empty_rect (rect
)) {
946 xps_free_page (state
.u
.xps
, page
);
947 printd ("progress %f loading %d",
948 (double) (pageno
+ 1) / state
.pagecount
,
956 if (state
.trimmargins
) {
959 page
= cbz_load_page (state
.u
.cbz
, pageno
);
960 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
961 cbz_free_page (state
.u
.cbz
, page
);
962 printd ("progress %f Trimming %d",
963 (double) (pageno
+ 1) / state
.pagecount
,
967 mediabox
.x0
= mediabox
.y0
= 0;
975 ARSERT (0 && state
.type
);
978 if (state
.pagedimcount
== 0
979 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
980 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
983 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
984 state
.pagedims
= realloc (state
.pagedims
, size
);
985 if (!state
.pagedims
) {
986 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
987 size
, state
.pagedimcount
+ 1);
990 p
= &state
.pagedims
[state
.pagedimcount
++];
992 p
->mediabox
= mediabox
;
997 if (state
.trimmargins
) {
998 printd ("progress 1 Trimmed %d pages in %f seconds",
999 state
.pagecount
, end
- start
);
1002 printd ("vmsg Processed %d pages in %f seconds",
1003 state
.pagecount
, end
- start
);
1008 static void layout (void)
1013 double zoom
, w
, maxw
= 0;
1014 struct pagedim
*p
= state
.pagedims
;
1016 if (state
.proportional
) {
1017 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1018 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1020 w
= box
.x1
- box
.x0
;
1021 maxw
= MAX (w
, maxw
);
1026 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1029 ctm
= fz_rotate (state
.rotate
);
1030 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1032 w
= box
.x1
- box
.x0
;
1034 if (state
.proportional
) {
1035 double scale
= w
/ maxw
;
1036 zoom
= (state
.w
/ w
) * scale
;
1042 p
->zoomctm
= fz_scale (zoom
, zoom
);
1043 ctm
= fz_concat (p
->zoomctm
, ctm
);
1045 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
1046 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1047 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1050 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
1053 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
1057 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
1058 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
1059 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
1065 while (p
-- != state
.pagedims
) {
1066 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1067 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1068 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1069 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1073 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1077 static void recurse_outline (fz_outline
*outline
, int level
)
1082 struct pagedim
*pdim
= state
.pagedims
;
1084 dest
= &outline
->dest
;
1085 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1086 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1088 pdim
= &state
.pagedims
[i
];
1090 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1093 p
.y
= dest
->ld
.gotor
.lt
.y
;
1094 p
= fz_transform_point (pdim
->lctm
, p
);
1097 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1101 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1102 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1104 printd ("o %d %d %d %d %s",
1105 level
, dest
->ld
.gotor
.page
, top
, h
, outline
->title
);
1107 if (outline
->down
) {
1108 recurse_outline (outline
->down
, level
+ 1);
1110 outline
= outline
->next
;
1114 static void process_outline (void)
1116 fz_outline
*outline
;
1118 if (!state
.needoutline
) return;
1120 state
.needoutline
= 0;
1121 switch (state
.type
) {
1123 outline
= pdf_load_outline (state
.u
.pdf
);
1126 outline
= xps_load_outline (state
.u
.xps
);
1133 recurse_outline (outline
, 0);
1134 fz_free_outline (state
.ctx
, outline
);
1138 static char *strofspan (fz_text_span
*span
)
1143 size_t size
= 0, cap
= 80;
1145 p
= malloc (cap
+ 1);
1146 if (!p
) return NULL
;
1148 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1149 int n
= fz_runetochar (utf8
, ch
->c
);
1150 if (size
+ n
> cap
) {
1152 p
= realloc (p
, cap
+ 1);
1153 if (!p
) return NULL
;
1156 memcpy (p
+ size
, utf8
, n
);
1163 static int matchspan (regex_t
*re
, fz_text_span
*span
, fz_matrix ctm
,
1164 int stop
, int pageno
, double start
)
1171 fz_point p1
, p2
, p3
, p4
;
1173 p
= strofspan (span
);
1176 ret
= regexec (re
, p
, 1, &rm
, 0);
1179 if (ret
!= REG_NOMATCH
) {
1182 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1183 printd ("msg regexec error `%.*s'",
1184 (int) size
, errbuf
);
1191 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1192 c
+= fz_runelen (span
->text
[a
].c
);
1194 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1195 c
+= fz_runelen (span
->text
[b
].c
);
1198 if (fz_runelen (span
->text
[b
].c
) > 1) {
1201 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1202 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1214 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1221 printd ("progress 1 found at %d `%.*s' in %f sec",
1222 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1226 printd ("match %d %d %f %f %f %f %f %f %f %f",
1238 static int compareblocks (const void *l
, const void *r
)
1240 fz_text_block
const *ls
= l
;
1241 fz_text_block
const* rs
= r
;
1242 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1245 /* wishful thinking function */
1246 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1251 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1253 fz_text_sheet
*sheet
;
1254 struct pagedim
*pdim
, *pdimprev
;
1255 int stop
= 0, niters
= 0;
1258 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1262 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1263 if (niters
++ == 5) {
1266 printd ("progress 1 attention requested aborting search at %d",
1271 printd ("progress %f searching in page %d",
1272 (double) (pageno
+ 1) / state
.pagecount
,
1277 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1278 pdim
= &state
.pagedims
[i
];
1279 if (pdim
->pageno
== pageno
) {
1282 if (pdim
->pageno
> pageno
) {
1291 sheet
= fz_new_text_sheet (state
.ctx
);
1292 text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
1293 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1295 switch (state
.type
) {
1298 fz_try (state
.ctx
) {
1299 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1300 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1301 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1302 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, ctm
, NULL
);
1304 fz_catch (state
.ctx
) {
1305 fz_free_device (tdev
);
1312 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1314 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, ctm
, NULL
);
1318 ARSERT (0 && state
.type
);
1321 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1322 fz_free_device (tdev
);
1324 for (j
= 0; j
< text
->len
; ++j
) {
1326 fz_text_block
*block
;
1328 block
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1330 for (k
= 0; k
< block
->len
; ++k
) {
1335 line
= &block
->lines
[k
];
1336 if (line
->bbox
.y0
< y
+ 1) continue;
1339 line
= &block
->lines
[block
->len
- 1 - k
];
1340 if (line
->bbox
.y0
> y
- 1) continue;
1343 for (span
= line
->spans
;
1344 span
< line
->spans
+ line
->len
;
1347 switch (matchspan (re
, span
, ctm
, stop
, pageno
, start
)) {
1349 case 1: stop
= 1; break;
1350 case -1: stop
= 1; goto endloop
;
1365 fz_free_text_page (state
.ctx
, text
);
1366 fz_free_text_sheet (state
.ctx
, sheet
);
1368 state
.freepage (u
.ptr
);
1373 printd ("progress 1 no matches %f sec", end
- start
);
1375 printd ("clearrects");
1378 static void set_tex_params (int colorspace
)
1385 switch (colorspace
) {
1387 state
.texiform
= GL_RGBA8
;
1388 state
.texform
= GL_RGBA
;
1389 state
.texty
= GL_UNSIGNED_BYTE
;
1390 state
.colorspace
= fz_device_rgb
;
1393 state
.texiform
= GL_RGBA8
;
1394 state
.texform
= GL_BGRA
;
1395 state
.texty
= endianness
.s
> 1
1396 ? GL_UNSIGNED_INT_8_8_8_8
1397 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1398 state
.colorspace
= fz_device_bgr
;
1401 state
.texiform
= GL_LUMINANCE_ALPHA
;
1402 state
.texform
= GL_LUMINANCE_ALPHA
;
1403 state
.texty
= GL_UNSIGNED_BYTE
;
1404 state
.colorspace
= fz_device_gray
;
1407 errx (1, "invalid colorspce %d", colorspace
);
1411 static void realloctexts (int texcount
)
1415 if (texcount
== state
.texcount
) return;
1417 if (texcount
< state
.texcount
) {
1418 glDeleteTextures (state
.texcount
- texcount
,
1419 state
.texids
+ texcount
);
1422 size
= texcount
* sizeof (*state
.texids
);
1423 state
.texids
= realloc (state
.texids
, size
);
1424 if (!state
.texids
) {
1425 err (1, "realloc texids %" FMT_s
, size
);
1428 size
= texcount
* sizeof (*state
.texowners
);
1429 state
.texowners
= realloc (state
.texowners
, size
);
1430 if (!state
.texowners
) {
1431 err (1, "realloc texowners %" FMT_s
, size
);
1433 if (texcount
> state
.texcount
) {
1436 glGenTextures (texcount
- state
.texcount
,
1437 state
.texids
+ state
.texcount
);
1438 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1439 state
.texowners
[i
].w
= -1;
1440 state
.texowners
[i
].slice
= NULL
;
1443 state
.texcount
= texcount
;
1447 static void * mainloop (void *unused
)
1450 int len
, ret
, oldlen
= 0;
1455 errx (1, "readlen returned 0");
1458 if (oldlen
< len
+ 1) {
1459 p
= realloc (p
, len
+ 1);
1461 err (1, "realloc %d failed", len
+ 1);
1468 if (!strncmp ("open", p
, 4)) {
1471 char *filename
= p
+ 5;
1473 filenamelen
= strlen (filename
);
1474 password
= filename
+ filenamelen
+ 1;
1476 openxref (filename
, password
);
1479 printd ("msg Opened %s (press h/F1 to get help)", filename
);
1480 state
.needoutline
= 1;
1482 else if (!strncmp ("cs", p
, 2)) {
1485 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1487 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1490 set_tex_params (colorspace
);
1491 for (i
= 0; i
< state
.texcount
; ++i
) {
1492 state
.texowners
[i
].w
= -1;
1493 state
.texowners
[i
].slice
= NULL
;
1497 else if (!strncmp ("freepage", p
, 8)) {
1500 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1502 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1506 else if (!strncmp ("freetile", p
, 8)) {
1509 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1511 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1515 else if (!strncmp ("search", p
, 6)) {
1516 int icase
, pageno
, y
, ret
, len2
, forward
;
1520 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1521 &icase
, &pageno
, &y
, &forward
, &len2
);
1523 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1526 pattern
= p
+ 6 + len2
;
1527 ret
= regcomp (&re
, pattern
,
1528 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1533 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1534 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1537 search (&re
, pageno
, y
, forward
);
1541 else if (!strncmp ("geometry", p
, 8)) {
1545 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1547 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1555 for (i
= 0; i
< state
.texcount
; ++i
) {
1556 state
.texowners
[i
].slice
= NULL
;
1562 unlock ("geometry");
1563 printd ("continue %d", state
.pagecount
);
1565 else if (!strncmp ("reqlayout", p
, 9)) {
1566 int rotate
, proportional
;
1569 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1571 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1574 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1577 state
.rotate
= rotate
;
1578 state
.proportional
= proportional
;
1582 unlock ("reqlayout");
1583 printd ("continue %d", state
.pagecount
);
1585 else if (!strncmp ("page", p
, 4)) {
1588 int pageno
, pindex
, ret
;
1590 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1592 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1597 page
= loadpage (pageno
, pindex
);
1601 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1603 else if (!strncmp ("tile", p
, 4)) {
1604 int x
, y
, w
, h
, ret
;
1609 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d",
1610 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
);
1612 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1617 tile
= rendertile (page
, x
, y
, w
, h
);
1621 printd ("tile %d %d %" FMT_ptr
" %u %f",
1623 FMT_ptr_cast2 (tile
),
1624 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1627 else if (!strncmp ("settrim", p
, 7)) {
1631 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1632 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1634 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1638 state
.trimmargins
= trimmargins
;
1639 state
.needoutline
= 1;
1640 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1642 state
.trimfuzz
= fuzz
;
1644 state
.pagedimcount
= 0;
1645 free (state
.pagedims
);
1646 state
.pagedims
= NULL
;
1651 printd ("continue %d", state
.pagecount
);
1653 else if (!strncmp ("sliceh", p
, 6)) {
1656 ret
= sscanf (p
+ 6, " %d", &h
);
1658 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1660 if (h
!= state
.sliceheight
) {
1663 state
.sliceheight
= h
;
1664 for (i
= 0; i
< state
.texcount
; ++i
) {
1665 state
.texowners
[i
].w
= -1;
1666 state
.texowners
[i
].h
= -1;
1667 state
.texowners
[i
].slice
= NULL
;
1671 else if (!strncmp ("interrupt", p
, 9)) {
1672 printd ("vmsg interrupted");
1675 errx (1, "unknown command %.*s", len
, p
);
1681 CAMLprim value
ml_realloctexts (value texcount_v
)
1683 CAMLparam1 (texcount_v
);
1686 if (trylock ("ml_realloctexts")) {
1690 realloctexts (Int_val (texcount_v
));
1692 unlock ("ml_realloctexts");
1695 CAMLreturn (Val_bool (ok
));
1698 static void showsel (struct page
*page
, int ox
, int oy
)
1704 fz_text_block
*block
;
1705 struct mark first
, last
;
1707 first
= page
->fmark
;
1710 if (!first
.span
|| !last
.span
) return;
1712 glEnable (GL_BLEND
);
1713 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1714 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1716 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1717 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1718 for (block
= page
->text
->blocks
;
1719 block
< page
->text
->blocks
+ page
->text
->len
;
1721 for (line
= block
->lines
;
1722 line
< block
->lines
+ block
->len
;
1724 for (span
= line
->spans
;
1725 span
< line
->spans
+ line
->len
;
1729 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1734 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1736 j
= MIN (first
.i
, last
.i
);
1737 k
= MAX (first
.i
, last
.i
);
1739 else if (span
== first
.span
) {
1743 else if (span
== last
.span
) {
1749 for (i
= j
; i
<= k
; ++i
) {
1750 fz_bbox b
= fz_round_rect (span
->text
[i
].bbox
);
1751 bbox
= fz_union_bbox (bbox
, b
);
1753 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1760 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
1761 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1762 if (span
== last
.span
) {
1770 glDisable (GL_BLEND
);
1775 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
1778 fz_link
*link
, *links
;
1780 switch (page
->type
) {
1782 links
= page
->u
.pdfpage
->links
;
1786 links
= page
->u
.xpspage
->links
;
1793 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1794 glEnable (GL_LINE_STIPPLE
);
1795 glLineStipple (0.5, 0xcccc);
1797 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1798 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1799 ctm
= fz_concat (pagectm (page
), fz_translate (xoff
, yoff
));
1802 for (link
= links
; link
; link
= link
->next
) {
1803 fz_point p1
, p2
, p3
, p4
;
1805 p1
.x
= link
->rect
.x0
;
1806 p1
.y
= link
->rect
.y0
;
1808 p2
.x
= link
->rect
.x1
;
1809 p2
.y
= link
->rect
.y0
;
1811 p3
.x
= link
->rect
.x1
;
1812 p3
.y
= link
->rect
.y1
;
1814 p4
.x
= link
->rect
.x0
;
1815 p4
.y
= link
->rect
.y1
;
1817 p1
= fz_transform_point (ctm
, p1
);
1818 p2
= fz_transform_point (ctm
, p2
);
1819 p3
= fz_transform_point (ctm
, p3
);
1820 p4
= fz_transform_point (ctm
, p4
);
1822 switch (link
->dest
.kind
) {
1823 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1824 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
1825 default: glColor3ub (0, 0, 0); break;
1828 glVertex2f (p1
.x
, p1
.y
);
1829 glVertex2f (p2
.x
, p2
.y
);
1830 glVertex2f (p3
.x
, p3
.y
);
1831 glVertex2f (p4
.x
, p4
.y
);
1835 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1836 glDisable (GL_LINE_STIPPLE
);
1839 static int compareslinks (const void *l
, const void *r
)
1841 struct slink
const *ls
= l
;
1842 struct slink
const *rs
= r
;
1843 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
1844 return rs
->bbox
.x0
- rs
->bbox
.x0
;
1846 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1849 static void droptext (struct page
*page
)
1852 fz_free_text_page (state
.ctx
, page
->text
);
1855 page
->fmark
.span
= NULL
;
1856 page
->lmark
.span
= NULL
;
1860 fz_free_text_sheet (state
.ctx
, page
->sheet
);
1864 static void dropslinks (struct page
*page
)
1867 free (page
->slinks
);
1868 page
->slinks
= NULL
;
1869 page
->slinkcount
= 0;
1873 static void ensureslinks (struct page
*page
)
1877 size_t slinksize
= sizeof (*page
->slinks
);
1878 fz_link
*link
, *links
;
1880 if (state
.gen
!= page
->sgen
) {
1882 page
->sgen
= state
.gen
;
1884 if (page
->slinks
) return;
1886 switch (page
->type
) {
1888 links
= page
->u
.pdfpage
->links
;
1889 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
1890 state
.pagedims
[page
->pdimno
].ctm
);
1894 links
= page
->u
.xpspage
->links
;
1895 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
1902 for (link
= links
; link
; link
= link
->next
) {
1906 page
->slinkcount
= count
;
1907 page
->slinks
= calloc (count
, slinksize
);
1908 if (!page
->slinks
) {
1909 err (1, "realloc slinks %d", count
);
1912 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
1913 page
->slinks
[i
].link
= link
;
1914 page
->slinks
[i
].bbox
=
1915 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
1917 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
1921 /* slightly tweaked fmt_ulong by D.J. Bernstein */
1922 static void fmt_linkn (char *s
, unsigned int u
)
1924 unsigned int len
; unsigned int q
;
1925 int zma
= 'z' - 'a' + 1;
1927 while (q
> zma
- 1) { ++len
; q
/= zma
; }
1930 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
1931 /* handles u == 0 */
1936 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
1937 int noff
, char *targ
, int tlen
, int hfsize
)
1941 struct slink
*slink
;
1942 double x0
, y0
, x1
, y1
, w
;
1944 ensureslinks (page
);
1945 glColor3ub (0xc3, 0xb0, 0x91);
1946 for (i
= 0; i
< page
->slinkcount
; ++i
) {
1947 fmt_linkn (buf
, i
+ noff
);
1948 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
1949 slink
= &page
->slinks
[i
];
1951 x0
= slink
->bbox
.x0
+ xoff
- 5;
1952 y1
= slink
->bbox
.y0
+ yoff
- 5;
1953 y0
= y1
+ 10 + hfsize
;
1954 w
= measure_string (state
.face
, hfsize
, buf
);
1956 glRectd (x0
, y0
, x1
, y1
);
1960 glEnable (GL_BLEND
);
1961 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
1962 glEnable (GL_TEXTURE_2D
);
1963 glColor3ub (0, 0, 0);
1964 for (i
= 0; i
< page
->slinkcount
; ++i
) {
1965 fmt_linkn (buf
, i
+ noff
);
1966 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
1967 slink
= &page
->slinks
[i
];
1969 x0
= slink
->bbox
.x0
+ xoff
;
1970 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
1971 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
1974 glDisable (GL_TEXTURE_2D
);
1975 glDisable (GL_BLEND
);
1979 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
1982 struct slice
*slice1
;
1985 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
1986 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
1988 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
1989 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1990 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1994 int texindex
= state
.texindex
++ % state
.texcount
;
1996 if (state
.texowners
[texindex
].w
== tile
->w
) {
1997 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2001 state
.texowners
[texindex
].h
= slice
->h
;
2005 state
.texowners
[texindex
].h
= slice
->h
;
2008 state
.texowners
[texindex
].w
= tile
->w
;
2009 state
.texowners
[texindex
].slice
= slice
;
2010 slice
->texindex
= texindex
;
2012 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2014 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2022 tile
->pixmap
->samples
+offset
2026 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2034 tile
->pixmap
->samples
+offset
2040 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2042 CAMLparam2 (args_v
, ptr_v
);
2043 int dispx
= Int_val (Field (args_v
, 0));
2044 int dispy
= Int_val (Field (args_v
, 1));
2045 int dispw
= Int_val (Field (args_v
, 2));
2046 int disph
= Int_val (Field (args_v
, 3));
2047 int tilex
= Int_val (Field (args_v
, 4));
2048 int tiley
= Int_val (Field (args_v
, 5));
2049 char *s
= String_val (ptr_v
);
2050 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2052 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2054 int slicey
, firstslice
;
2055 struct slice
*slice
;
2057 firstslice
= tiley
/ tile
->sliceheight
;
2058 slice
= &tile
->slices
[firstslice
];
2059 slicey
= tiley
% tile
->sliceheight
;
2064 dh
= slice
->h
- slicey
;
2065 dh
= MIN (disph
, dh
);
2066 uploadslice (tile
, slice
);
2070 glTexCoord2i (tilex
, slicey
);
2071 glVertex2i (dispx
, dispy
);
2073 glTexCoord2i (tilex
+dispw
, slicey
);
2074 glVertex2i (dispx
+dispw
, dispy
);
2076 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
2077 glVertex2i (dispx
+dispw
, dispy
+dh
);
2079 glTexCoord2i (tilex
, slicey
+dh
);
2080 glVertex2i (dispx
, dispy
+dh
);
2087 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2091 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2092 CAMLreturn (Val_unit
);
2095 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2096 value xoff_v
, value yoff_v
,
2099 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2100 int xoff
= Int_val (xoff_v
);
2101 int yoff
= Int_val (yoff_v
);
2102 int noff
= Int_val (Field (li_v
, 0));
2103 char *targ
= String_val (Field (li_v
, 1));
2104 int tlen
= caml_string_length (Field (li_v
, 1));
2105 int hfsize
= Int_val (Field (li_v
, 2));
2106 char *s
= String_val (ptr_v
);
2107 int hlmask
= Int_val (hlinks_v
);
2108 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2110 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2111 if (trylock ("ml_postprocess")) {
2116 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2117 noff
= page
->slinkcount
;
2119 showsel (page
, xoff
, yoff
);
2120 unlock ("ml_postprocess");
2123 CAMLreturn (Val_int (noff
));
2126 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2130 fz_link
*link
, *links
;
2132 switch (page
->type
) {
2134 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
2135 links
= page
->u
.pdfpage
->links
;
2140 links
= page
->u
.xpspage
->links
;
2149 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
2150 ctm
= fz_invert_matrix (ctm
);
2151 p
= fz_transform_point (ctm
, p
);
2153 for (link
= links
; link
; link
= link
->next
) {
2154 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2155 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2163 static void ensuretext (struct page
*page
)
2165 if (state
.gen
!= page
->tgen
) {
2167 page
->tgen
= state
.gen
;
2172 page
->text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
2173 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2174 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2175 fz_run_display_list (page
->dlist
,
2178 fz_infinite_bbox
, NULL
);
2179 qsort (page
->text
->blocks
, page
->text
->len
,
2180 sizeof (*page
->text
->blocks
), compareblocks
);
2181 fz_free_device (tdev
);
2185 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2187 CAMLparam2 (start_page_v
, dir_v
);
2189 int i
, dir
= Int_val (dir_v
);
2190 int start_page
= Int_val (start_page_v
);
2191 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2193 ret_v
= Val_int (0);
2194 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2198 lock ("ml_findpage_with_links");
2199 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2202 switch (state
.type
) {
2205 pdf_page
*page
= NULL
;
2207 fz_try (state
.ctx
) {
2208 page
= pdf_load_page (state
.u
.pdf
, i
);
2209 found
= !!page
->links
;
2211 fz_catch (state
.ctx
) {
2221 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2222 found
= !!page
->links
;
2228 ARSERT ("invalid document type");
2232 ret_v
= caml_alloc_small (1, 1);
2233 Field (ret_v
, 0) = Val_int (i
);
2238 unlock ("ml_findpage_with_links");
2244 enum { dir_first
, dir_last
};
2245 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2247 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2249 CAMLparam2 (ptr_v
, dir_v
);
2250 CAMLlocal2 (ret_v
, pos_v
);
2252 int dirtag
, i
, slinkindex
;
2253 struct slink
*found
= NULL
,*slink
;
2254 char *s
= String_val (ptr_v
);
2256 page
= parse_pointer ("ml_findlink", s
);
2257 ret_v
= Val_int (0);
2258 if (trylock ("ml_findlink")) {
2262 ensureslinks (page
);
2264 if (Is_block (dir_v
)) {
2265 dirtag
= Tag_val (dir_v
);
2267 case dir_first_visible
:
2269 int x0
, y0
, dir
, first_index
, last_index
;
2271 pos_v
= Field (dir_v
, 0);
2272 x0
= Int_val (Field (pos_v
, 0));
2273 y0
= Int_val (Field (pos_v
, 1));
2274 dir
= Int_val (Field (pos_v
, 2));
2279 last_index
= page
->slinkcount
;
2282 first_index
= page
->slinkcount
- 1;
2286 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2287 slink
= &page
->slinks
[i
];
2288 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2297 slinkindex
= Int_val (Field (dir_v
, 0));
2298 found
= &page
->slinks
[slinkindex
];
2299 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2300 slink
= &page
->slinks
[i
];
2301 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2309 slinkindex
= Int_val (Field (dir_v
, 0));
2310 found
= &page
->slinks
[slinkindex
];
2311 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2312 slink
= &page
->slinks
[i
];
2313 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2321 slinkindex
= Int_val (Field (dir_v
, 0));
2322 found
= &page
->slinks
[slinkindex
];
2323 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2324 slink
= &page
->slinks
[i
];
2325 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2333 slinkindex
= Int_val (Field (dir_v
, 0));
2334 found
= &page
->slinks
[slinkindex
];
2335 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2336 slink
= &page
->slinks
[i
];
2337 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2346 dirtag
= Int_val (dir_v
);
2349 found
= page
->slinks
;
2354 found
= page
->slinks
+ (page
->slinkcount
- 1);
2360 ret_v
= caml_alloc_small (2, 1);
2361 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2364 unlock ("ml_findlink");
2369 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2375 switch (link->dest.kind) { \
2376 case FZ_LINK_GOTO: \
2380 pageno = link->dest.ld.gotor.page; \
2384 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2385 p.y = link->dest.ld.gotor.lt.y; \
2386 p = fz_transform_point (pdim->lctm, p); \
2388 tup_v = caml_alloc_tuple (2); \
2389 ret_v = caml_alloc_small (1, ugoto); \
2390 Field (tup_v, 0) = Val_int (pageno); \
2391 Field (tup_v, 1) = Val_int (p.y); \
2392 Field (ret_v, 0) = tup_v; \
2397 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2398 ret_v = caml_alloc_small (1, uuri); \
2399 Field (ret_v, 0) = str_v; \
2402 case FZ_LINK_LAUNCH: \
2403 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2404 ret_v = caml_alloc_small (1, ulaunch); \
2405 Field (ret_v, 0) = str_v; \
2408 case FZ_LINK_NAMED: \
2409 str_v = caml_copy_string (link->dest.ld.named.named); \
2410 ret_v = caml_alloc_small (1, unamed); \
2411 Field (ret_v, 0) = str_v; \
2414 case FZ_LINK_GOTOR: \
2415 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2416 pageno = link->dest.ld.gotor.page; \
2417 tup_v = caml_alloc_tuple (2); \
2418 ret_v = caml_alloc_small (1, uremote); \
2419 Field (tup_v, 0) = str_v; \
2420 Field (tup_v, 1) = Val_int (pageno); \
2421 Field (ret_v, 0) = tup_v; \
2428 snprintf (buf, sizeof (buf), \
2429 "unhandled link kind %d", link->dest.kind); \
2430 str_v = caml_copy_string (buf); \
2431 ret_v = caml_alloc_small (1, uunexpected); \
2432 Field (ret_v, 0) = str_v; \
2438 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2440 CAMLparam2 (ptr_v
, n_v
);
2441 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2444 struct pagedim
*pdim
;
2445 char *s
= String_val (ptr_v
);
2447 ret_v
= Val_int (0);
2448 if (trylock ("ml_getlink")) {
2452 page
= parse_pointer ("ml_getlink", s
);
2453 ensureslinks (page
);
2454 pdim
= &state
.pagedims
[page
->pdimno
];
2455 link
= page
->slinks
[Int_val (n_v
)].link
;
2458 unlock ("ml_getlink");
2463 CAMLprim value
ml_getlinkcount (value ptr_v
)
2467 char *s
= String_val (ptr_v
);
2469 page
= parse_pointer ("ml_getlinkcount", s
);
2470 CAMLreturn (Val_int (page
->slinkcount
));
2473 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2475 CAMLparam2 (ptr_v
, n_v
);
2478 struct slink
*slink
;
2479 char *s
= String_val (ptr_v
);
2481 page
= parse_pointer ("ml_getlinkrect", s
);
2482 ret_v
= caml_alloc_tuple (4);
2483 if (trylock ("ml_getlinkrect")) {
2484 Field (ret_v
, 0) = Val_int (0);
2485 Field (ret_v
, 1) = Val_int (0);
2486 Field (ret_v
, 2) = Val_int (0);
2487 Field (ret_v
, 3) = Val_int (0);
2490 ensureslinks (page
);
2492 slink
= &page
->slinks
[Int_val (n_v
)];
2493 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2494 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2495 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2496 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2497 unlock ("ml_getlinkrect");
2503 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2505 CAMLparam3 (ptr_v
, x_v
, y_v
);
2506 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2509 char *s
= String_val (ptr_v
);
2510 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2511 struct pagedim
*pdim
;
2513 ret_v
= Val_int (0);
2514 if (trylock ("ml_whatsunder")) {
2518 page
= parse_pointer ("ml_whatsunder", s
);
2519 pdim
= &state
.pagedims
[page
->pdimno
];
2520 x
+= pdim
->bounds
.x0
;
2521 y
+= pdim
->bounds
.y0
;
2522 link
= getlink (page
, x
, y
);
2528 fz_text_block
*block
;
2531 for (block
= page
->text
->blocks
;
2532 block
< page
->text
->blocks
+ page
->text
->len
;
2537 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2540 for (line
= block
->lines
;
2541 line
< block
->lines
+ block
->len
;
2546 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2549 for (span
= line
->spans
;
2550 span
< line
->spans
+ line
->len
;
2555 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2558 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
2561 if (x
>= b
->x0
&& x
<= b
->x1
2562 && y
>= b
->y0
&& y
<= b
->y1
) {
2564 span
->style
->font
&& span
->style
->font
->name
2565 ? span
->style
->font
->name
2566 : "Span has no font name"
2568 FT_FaceRec
*face
= span
->style
->font
->ft_face
;
2569 if (face
&& face
->family_name
) {
2571 char *n1
= face
->family_name
;
2572 size_t l1
= strlen (n1
);
2573 size_t l2
= strlen (n2
);
2575 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2576 s
= malloc (l1
+ l2
+ 2);
2580 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2581 str_v
= caml_copy_string (s
);
2587 str_v
= caml_copy_string (n2
);
2589 ret_v
= caml_alloc_small (1, utext
);
2590 Field (ret_v
, 0) = str_v
;
2599 unlock ("ml_whatsunder");
2605 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2607 CAMLparam2 (ptr_v
, rect_v
);
2610 struct pagedim
*pdim
;
2611 int i
, x0
, x1
, y0
, y1
;
2612 char *s
= String_val (ptr_v
);
2614 fz_text_block
*block
;
2615 fz_text_span
*span
, *fspan
, *lspan
;
2616 fz_text_line
*line
, *fline
= NULL
, *lline
= NULL
;
2618 if (trylock ("ml_seltext")) {
2622 page
= parse_pointer ("ml_seltext", s
);
2625 pdim
= &state
.pagedims
[page
->pdimno
];
2626 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2627 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2628 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2629 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2632 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2633 glColor3ub (128, 128, 128);
2634 glRecti (x0
, y0
, x1
, y1
);
2635 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2638 fspan
= lspan
= NULL
;
2640 for (block
= page
->text
->blocks
;
2641 block
< page
->text
->blocks
+ page
->text
->len
;
2643 for (line
= block
->lines
;
2644 line
< block
->lines
+ block
->len
;
2646 for (span
= line
->spans
;
2647 span
< line
->spans
+ line
->len
;
2649 for (i
= 0; i
< span
->len
; ++i
) {
2650 b
= &span
->text
[i
].bbox
;
2653 if (x0
>= b
->x0
&& x0
<= b
->x1
2654 && y0
>= b
->y0
&& y0
<= b
->y1
) {
2660 if (x1
>= b
->x0
&& x1
<= b
->x1
2661 && y1
>= b
->y0
&& y1
<= b
->y1
) {
2667 if (0 && selected
) {
2668 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2669 glColor3ub (128, 128, 128);
2670 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2671 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2677 if (y1
< y0
|| x1
< x0
) {
2680 if (fspan
== lspan
) {
2685 if (fline
!= lline
) {
2704 page
->fmark
.span
= fspan
;
2707 page
->lmark
.span
= lspan
;
2709 unlock ("ml_seltext");
2712 CAMLreturn (Val_unit
);
2715 static int UNUSED
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2720 for (i
= a
; i
<= b
; ++i
) {
2721 len
= fz_runetochar (buf
, span
->text
[i
].c
);
2722 ret
= fwrite (buf
, len
, 1, f
);
2725 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2726 len
, ret
, strerror (errno
));
2734 value
ml_popen (value UNUSED u1
, value UNUSED u2
)
2736 caml_failwith ("ml_popen not implemented under Cygwin");
2739 CAMLprim value
ml_popen (value command_v
, value fds_v
)
2741 CAMLparam2 (command_v
, fds_v
);
2742 CAMLlocal2 (l_v
, tup_v
);
2745 value earg_v
= Nothing
;
2746 posix_spawnattr_t attr
;
2747 posix_spawn_file_actions_t fa
;
2748 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
2750 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
2751 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
2754 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
2755 msg
= "posix_spawnattr_init";
2759 #ifdef POSIX_SPAWN_USEVFORK
2760 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
2761 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
2766 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
2769 tup_v
= Field (l_v
, 0);
2770 fd1
= Int_val (Field (tup_v
, 0));
2771 fd2
= Int_val (Field (tup_v
, 1));
2773 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
2774 msg
= "posix_spawn_file_actions_addclose";
2780 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
2781 msg
= "posix_spawn_file_actions_adddup2";
2788 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
2789 msg
= "posix_spawn";
2794 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
2795 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
2799 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
2800 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
2805 unix_error (ret
, msg
, earg_v
);
2807 CAMLreturn (Val_unit
);
2811 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
2819 fz_text_block
*block
;
2820 int fd
= Int_val (fd_v
);
2821 char *s
= String_val (ptr_v
);
2823 if (trylock ("ml_copysel")) {
2827 page
= parse_pointer ("ml_sopysel", s
);
2829 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
2830 fprintf (stderr
, "nothing to copy\n");
2834 f
= fdopen (fd
, "w");
2836 fprintf (stderr
, "failed to fopen sel pipe: %s\n",
2841 for (block
= page
->text
->blocks
;
2842 block
< page
->text
->blocks
+ page
->text
->len
;
2844 for (line
= block
->lines
;
2845 line
< block
->lines
+ block
->len
;
2847 for (span
= line
->spans
;
2848 span
< line
->spans
+ line
->len
;
2852 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
2853 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
2854 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
2857 if (pipespan (f
, span
, a
, b
)) {
2860 if (span
== line
->spans
+ line
->len
- 1) {
2861 if (putc ('\n', f
) == EOF
) {
2863 "failed break line on sel pipe: %s\n",
2868 if (span
== page
->lmark
.span
) {
2876 page
->lmark
.span
= NULL
;
2877 page
->fmark
.span
= NULL
;
2881 int ret
= fclose (f
);
2884 if (errno
!= ECHILD
) {
2885 fprintf (stderr
, "failed to close sel pipe: %s\n",
2891 unlock ("ml_copysel");
2896 fprintf (stderr
, "failed to close sel pipe: %s\n",
2900 CAMLreturn (Val_unit
);
2903 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
2905 CAMLparam1 (pagedimno_v
);
2907 int pagedimno
= Int_val (pagedimno_v
);
2910 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
2911 if (trylock ("ml_getpdimrect")) {
2912 box
= fz_empty_rect
;
2915 box
= state
.pagedims
[pagedimno
].mediabox
;
2916 unlock ("ml_getpdimrect");
2919 Store_double_field (ret_v
, 0, box
.x0
);
2920 Store_double_field (ret_v
, 1, box
.x1
);
2921 Store_double_field (ret_v
, 2, box
.y0
);
2922 Store_double_field (ret_v
, 3, box
.y1
);
2927 static double getmaxw (void)
2933 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2936 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2937 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2940 maxw
= MAX (w
, maxw
);
2945 CAMLprim value
ml_getmaxw (value unit_v
)
2947 CAMLparam1 (unit_v
);
2951 if (trylock ("ml_getmaxw")) {
2955 unlock ("ml_getmaxw");
2957 ret_v
= caml_copy_double (maxw
);
2961 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
2962 value dw_v
, value cols_v
)
2964 CAMLparam3 (winw_v
, winh_v
, dw_v
);
2968 double maxw
= 0.0, maxh
= 0.0;
2970 double winw
= Int_val (winw_v
);
2971 double winh
= Int_val (winh_v
);
2972 double dw
= Int_val (dw_v
);
2973 double cols
= Int_val (cols_v
);
2974 double pw
= 1.0, ph
= 1.0, num
, den
;
2976 if (trylock ("ml_zoom_for_height")) {
2980 if (state
.proportional
) {
2981 maxw
= getmaxw () / cols
;
2984 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2985 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
2987 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2988 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2989 y0
= MIN (p
->mediabox
.y0
, p
->mediabox
.y1
);
2990 y1
= MAX (p
->mediabox
.y0
, p
->mediabox
.y1
);
2992 w
= (x1
- x0
) / cols
;
2995 if (state
.proportional
) {
2997 scaledh
= h
* scale
;
3004 if (scaledh
> maxh
) {
3011 num
= (winh
* pw
) + (ph
* dw
);
3015 unlock ("ml_zoom_for_height");
3017 ret_v
= caml_copy_double (zoom
);
3021 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3023 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3025 int pt
= Int_val(pt_v
);
3026 int x
= Int_val (x_v
);
3027 int y
= Int_val (y_v
);
3030 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3031 ret_v
= caml_copy_double (w
);
3035 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3037 CAMLparam2 (pt_v
, string_v
);
3039 int pt
= Int_val (pt_v
);
3042 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3043 ret_v
= caml_copy_double (w
);
3047 CAMLprim value
ml_getpagebox (value opaque_v
)
3049 CAMLparam1 (opaque_v
);
3053 char *s
= String_val (opaque_v
);
3054 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3056 ret_v
= caml_alloc_tuple (4);
3057 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
3058 dev
->hints
|= FZ_IGNORE_SHADE
;
3060 switch (page
->type
) {
3062 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
3066 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
3070 bbox
= fz_infinite_bbox
;
3074 fz_free_device (dev
);
3075 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3076 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3077 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3078 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3083 CAMLprim value
ml_setaalevel (value level_v
)
3085 CAMLparam1 (level_v
);
3087 state
.aalevel
= Int_val (level_v
);
3088 CAMLreturn (Val_unit
);
3092 #include <X11/Xlib.h>
3098 GLXDrawable drawable
;
3101 #include "keysym2ucs.c"
3103 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3105 CAMLparam1 (keysym_v
);
3107 KeySym keysym
= Int_val (keysym_v
);
3112 rune
= keysym2ucs (keysym
);
3113 len
= fz_runetochar (buf
, rune
);
3115 str_v
= caml_copy_string (buf
);
3119 CAMLprim value
ml_glx (value win_v
)
3122 XVisualInfo
*visual
;
3123 int screen
, wid
= Int_val (win_v
);
3124 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3126 glx
.dpy
= XOpenDisplay (NULL
);
3128 caml_failwith ("XOpenDisplay failed");
3131 screen
= DefaultScreen (glx
.dpy
);
3132 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
3134 XCloseDisplay (glx
.dpy
);
3136 caml_failwith ("glXChooseVisual");
3139 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
3142 XCloseDisplay (glx
.dpy
);
3144 caml_failwith ("glXCreateContext");
3147 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
3148 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3149 XCloseDisplay (glx
.dpy
);
3152 caml_failwith ("glXMakeCurrent");
3156 CAMLreturn (Val_unit
);
3159 CAMLprim value
ml_swapb (value unit_v
)
3161 CAMLparam1 (unit_v
);
3162 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
3163 CAMLreturn (Val_unit
);
3166 CAMLprim value
ml_glxsync (value unit_v
)
3168 CAMLparam1 (unit_v
);
3169 if (glx
.dpy
&& glx
.ctx
) {
3173 CAMLreturn (Val_unit
);
3176 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
3177 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
3179 CAMLprim value
ml_platform (value unit_v
)
3181 CAMLparam1 (unit_v
);
3182 int platid
= piunknown
;
3184 #if defined __linux__
3186 #elif defined __CYGWIN__
3188 #elif defined __DragonFly__
3189 platid
= pidragonflybsd
;
3190 #elif defined __FreeBSD__
3192 #elif defined __OpenBSD__
3194 #elif defined __NetBSD__
3196 #elif defined __sun__
3198 #elif defined __APPLE__
3201 CAMLreturn (Val_int (platid
));
3204 CAMLprim value
ml_cloexec (value fd_v
)
3207 int fd
= Int_val (fd_v
);
3209 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3210 uerror ("fcntl", Nothing
);
3212 CAMLreturn (Val_unit
);
3215 CAMLprim value
ml_init (value pipe_v
, value params_v
)
3217 CAMLparam2 (pipe_v
, params_v
);
3218 CAMLlocal2 (trim_v
, fuzz_v
);
3224 struct sigaction sa
;
3226 state
.cr
= Int_val (Field (pipe_v
, 0));
3227 state
.cw
= Int_val (Field (pipe_v
, 1));
3228 state
.rotate
= Int_val (Field (params_v
, 0));
3229 state
.proportional
= Bool_val (Field (params_v
, 1));
3230 trim_v
= Field (params_v
, 2);
3231 texcount
= Int_val (Field (params_v
, 3));
3232 state
.sliceheight
= Int_val (Field (params_v
, 4));
3233 mustoresize
= Int_val (Field (params_v
, 5));
3234 colorspace
= Int_val (Field (params_v
, 6));
3235 fontpath
= String_val (Field (params_v
, 7));
3237 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
3239 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
3240 fuzz_v
= Field (trim_v
, 1);
3241 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
3242 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
3243 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
3244 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
3246 set_tex_params (colorspace
);
3249 state
.face
= load_font (fontpath
);
3253 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
3255 state
.face
= load_builtin_font (base
, len
);
3257 if (!state
.face
) _exit (1);
3259 realloctexts (texcount
);
3262 sa
.sa_handler
= SIG_IGN
;
3263 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
3265 sa
.sa_handler
= SIG_DFL
;
3266 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
3268 if (sigemptyset (&sa
.sa_mask
)) {
3269 err (1, "sigemptyset");
3271 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
3272 err (1, "sigaction");
3275 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
3277 errx (1, "pthread_create: %s", strerror (ret
));
3280 CAMLreturn (Val_unit
);