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
;
164 struct slink
*slinks
;
169 void (*freepage
) (void *);
175 struct pagedim
*pagedims
;
194 fz_colorspace
*colorspace
;
216 void (*closedoc
) (void);
217 void (*freepage
) (void *);
220 static void UNUSED
debug_rect (const char *cap
, fz_rect r
)
222 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
225 static void UNUSED
debug_bbox (const char *cap
, fz_bbox r
)
227 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
230 static void UNUSED
debug_matrix (const char *cap
, fz_matrix m
)
232 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
233 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
236 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
238 static void lock (const char *cap
)
240 int ret
= pthread_mutex_lock (&mutex
);
242 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
246 static void unlock (const char *cap
)
248 int ret
= pthread_mutex_unlock (&mutex
);
250 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
254 static int trylock (const char *cap
)
256 int ret
= pthread_mutex_trylock (&mutex
);
258 if (ret
&& ret
!= EBUSY
) {
259 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
264 static void *parse_pointer (const char *cap
, const char *s
)
269 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
271 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
276 static double now (void)
280 if (gettimeofday (&tv
, NULL
)) {
281 err (1, "gettimeofday");
283 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
286 static int hasdata (void)
289 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
290 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
294 CAMLprim value
ml_hasdata (value fd_v
)
299 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
300 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
301 CAMLreturn (Val_bool (avail
> 0));
304 static void readdata (void *p
, int size
)
308 n
= read (state
.cr
, p
, size
);
310 if (!n
) errx (1, "EOF while reading");
311 err (1, "read (req %d, ret %zd)", size
, n
);
315 static void writedata (char *p
, int size
)
320 buf
[0] = (size
>> 24) & 0xff;
321 buf
[1] = (size
>> 16) & 0xff;
322 buf
[2] = (size
>> 8) & 0xff;
323 buf
[3] = (size
>> 0) & 0xff;
325 n
= write (state
.cw
, buf
, 4);
327 if (!n
) errx (1, "EOF while writing length");
328 err (1, "write %zd", n
);
331 n
= write (state
.cw
, p
, size
);
333 if (!n
) errx (1, "EOF while writing data");
334 err (1, "write (req %d, ret %zd)", size
, n
);
338 static int readlen (void)
343 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
346 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
354 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
357 len
= vsnprintf (buf
, size
, fmt
, ap
);
360 if (len
> -1 && len
< size
) {
361 writedata (buf
, len
);
371 buf
= realloc (buf
, size
);
376 static void closepdf (void)
379 pdf_close_document (state
.u
.pdf
);
384 static void closexps (void)
387 xps_close_document (state
.u
.xps
);
392 static void closecbz (void)
395 cbz_close_document (state
.u
.cbz
);
400 static void freepdfpage (void *ptr
)
402 pdf_free_page (state
.u
.pdf
, ptr
);
405 static void freexpspage (void *ptr
)
407 xps_free_page (state
.u
.xps
, ptr
);
410 static void freecbzpage (void *ptr
)
412 cbz_free_page (state
.u
.cbz
, ptr
);
415 static void openxref (char *filename
, char *password
)
419 for (i
= 0; i
< state
.texcount
; ++i
) {
420 state
.texowners
[i
].w
= -1;
421 state
.texowners
[i
].slice
= NULL
;
424 if (state
.closedoc
) state
.closedoc ();
426 len
= strlen (filename
);
432 ext
[0] = tolower ((int) filename
[len
-3]);
433 ext
[1] = tolower ((int) filename
[len
-2]);
434 ext
[2] = tolower ((int) filename
[len
-1]);
436 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
439 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
444 if (state
.pagedims
) {
445 free (state
.pagedims
);
446 state
.pagedims
= NULL
;
448 state
.pagedimcount
= 0;
450 fz_set_aa_level (state
.ctx
, state
.aalevel
);
451 switch (state
.type
) {
453 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
454 if (pdf_needs_password (state
.u
.pdf
)) {
455 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
457 errx (1, "invalid password");
460 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
461 state
.closedoc
= closepdf
;
462 state
.freepage
= freepdfpage
;
466 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
467 state
.pagecount
= xps_count_pages (state
.u
.xps
);
468 state
.closedoc
= closexps
;
469 state
.freepage
= freexpspage
;
473 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
474 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
475 state
.closedoc
= closecbz
;
476 state
.freepage
= freecbzpage
;
481 static void pdfinfo (void)
483 if (state
.type
== DPDF
) {
486 printd ("info PDF version\t%d.%d",
487 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
489 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
493 char *items
[] = { "Title", "Author", "Creator",
494 "Producer", "CreationDate" };
496 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
497 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
498 s
= pdf_to_utf8 (state
.ctx
, obj
);
501 printd ("title %s", s
);
503 printd ("info %s\t%s", items
[i
], s
);
505 fz_free (state
.ctx
, s
);
512 static void unlinktile (struct tile
*tile
)
516 for (i
= 0; i
< tile
->slicecount
; ++i
) {
517 struct slice
*s
= &tile
->slices
[i
];
519 if (s
->texindex
!= -1) {
520 if (state
.texowners
[s
->texindex
].slice
== s
) {
521 state
.texowners
[s
->texindex
].slice
= NULL
;
527 static void freepage (struct page
*page
)
530 fz_free_text_span (state
.ctx
, page
->text
);
535 page
->freepage (page
->u
.ptr
);
536 fz_free_display_list (state
.ctx
, page
->dlist
);
540 static void freetile (struct tile
*tile
)
544 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
547 fz_drop_pixmap (state
.ctx
, state
.pig
);
549 state
.pig
= tile
->pixmap
;
557 static int cacheline32bytes
;
558 extern char **environ
;
560 static void __attribute__ ((constructor
)) clcheck (void)
562 char **envp
= environ
;
567 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
569 cacheline32bytes
= auxv
[1] == 32;
575 static void OPTIMIZE (3) clearpixmap (fz_pixmap
*pixmap
)
577 if (cacheline32bytes
) {
578 intptr_t a1
, a2
, diff
;
579 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
580 vector
unsigned char v
= vec_splat_u8 (-1);
581 vector
unsigned char *p
;
583 a1
= a2
= (intptr_t) pixmap
->samples
;
584 a2
= (a1
+ 31) & ~31;
589 while (a1
!= a2
) *(char *) a1
++ = 0xff;
590 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
591 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
593 vec_st (v
, i
+ 16, p
);
595 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
597 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
600 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
603 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
606 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
608 if (!pdim
->tctmready
) {
609 if (state
.trimmargins
) {
612 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
613 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
614 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
615 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
626 static fz_matrix
pagectm (struct page
*page
)
628 if (page
->type
== DPDF
) {
629 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
630 state
.pagedims
[page
->pdimno
].ctm
);
634 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
636 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
637 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
638 -pdim
->mediabox
.y0
), ctm
);
643 static void *loadpage (int pageno
, int pindex
)
646 struct page
*page
= NULL
;
648 page
= calloc (sizeof (struct page
), 1);
650 err (1, "calloc page %d", pageno
);
653 page
->dlist
= fz_new_display_list (state
.ctx
);
654 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
655 switch (state
.type
) {
657 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
658 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
659 page
->freepage
= freepdfpage
;
663 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
664 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
665 page
->freepage
= freexpspage
;
669 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
670 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
671 page
->freepage
= freecbzpage
;
674 fz_free_device (dev
);
676 page
->pdimno
= pindex
;
677 page
->pageno
= pageno
;
678 page
->gen
= state
.gen
;
679 page
->type
= state
.type
;
684 static struct tile
*alloctile (int h
)
691 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
692 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
693 tile
= calloc (tilesize
, 1);
695 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
697 for (i
= 0; i
< slicecount
; ++i
) {
698 int sh
= MIN (h
, state
.sliceheight
);
699 tile
->slices
[i
].h
= sh
;
700 tile
->slices
[i
].texindex
= -1;
703 tile
->slicecount
= slicecount
;
704 tile
->sliceheight
= state
.sliceheight
;
708 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
)
713 struct pagedim
*pdim
;
715 tile
= alloctile (h
);
716 pdim
= &state
.pagedims
[page
->pdimno
];
721 bbox
.x1
= bbox
.x0
+ w
;
722 bbox
.y1
= bbox
.y0
+ h
;
725 if (state
.pig
->w
== w
727 && state
.pig
->colorspace
== state
.colorspace
) {
728 tile
->pixmap
= state
.pig
;
729 tile
->pixmap
->x
= bbox
.x0
;
730 tile
->pixmap
->y
= bbox
.y0
;
733 fz_drop_pixmap (state
.ctx
, state
.pig
);
739 fz_new_pixmap_with_rect (state
.ctx
, state
.colorspace
, bbox
);
744 clearpixmap (tile
->pixmap
);
745 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
746 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
747 fz_free_device (dev
);
752 static void initpdims (void)
758 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
763 switch (state
.type
) {
765 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
767 if (state
.trimmargins
) {
771 page
= pdf_load_page (state
.u
.pdf
, pageno
);
772 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
773 if (state
.trimanew
|| !obj
) {
779 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
780 dev
->hints
|= FZ_IGNORE_SHADE
;
781 ctm
= fz_invert_matrix (page
->ctm
);
782 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
783 fz_free_device (dev
);
785 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
786 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
787 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
788 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
789 rect
= fz_transform_rect (ctm
, rect
);
790 rect
= fz_intersect_rect (rect
, page
->mediabox
);
792 if (fz_is_empty_rect (rect
)) {
793 mediabox
= page
->mediabox
;
799 obj
= pdf_new_array (state
.ctx
, 4);
800 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
801 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
802 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
803 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
804 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
807 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
808 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
809 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
810 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
813 rotate
= page
->rotate
;
814 pdf_free_page (state
.u
.pdf
, page
);
816 printd ("progress %f Trimming %d",
817 (double) (pageno
+ 1) / state
.pagecount
,
823 mediabox
= pdf_to_rect (state
.ctx
,
824 pdf_dict_gets (pageobj
, "MediaBox"));
825 if (fz_is_empty_rect (mediabox
)) {
826 fprintf (stderr
, "cannot find page size for page %d\n",
834 cropbox
= pdf_to_rect (state
.ctx
,
835 pdf_dict_gets (pageobj
, "CropBox"));
836 if (!fz_is_empty_rect (cropbox
)) {
837 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
839 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
848 page
= xps_load_page (state
.u
.xps
, pageno
);
849 mediabox
= xps_bound_page (state
.u
.xps
, page
);
851 if (state
.trimmargins
) {
856 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
857 dev
->hints
|= FZ_IGNORE_SHADE
;
858 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
859 fz_free_device (dev
);
861 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
862 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
863 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
864 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
865 rect
= fz_intersect_rect (rect
, mediabox
);
867 if (!fz_is_empty_rect (rect
)) {
871 xps_free_page (state
.u
.xps
, page
);
872 printd ("progress %f loading %d",
873 (double) (pageno
+ 1) / state
.pagecount
,
881 if (state
.trimmargins
) {
884 page
= cbz_load_page (state
.u
.cbz
, pageno
);
885 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
886 cbz_free_page (state
.u
.cbz
, page
);
887 printd ("progress %f Trimming %d",
888 (double) (pageno
+ 1) / state
.pagecount
,
892 mediabox
.x0
= mediabox
.y0
= 0;
900 ARSERT (0 && state
.type
);
903 if (state
.pagedimcount
== 0
904 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
905 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
908 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
909 state
.pagedims
= realloc (state
.pagedims
, size
);
910 if (!state
.pagedims
) {
911 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
912 size
, state
.pagedimcount
+ 1);
915 p
= &state
.pagedims
[state
.pagedimcount
++];
917 p
->mediabox
= mediabox
;
922 if (state
.trimmargins
) {
923 printd ("progress 1 Trimmed %d pages in %f seconds",
924 state
.pagecount
, end
- start
);
927 printd ("vmsg Processed %d pages in %f seconds",
928 state
.pagecount
, end
- start
);
933 static void layout (void)
938 double zoom
, w
, maxw
= 0;
939 struct pagedim
*p
= state
.pagedims
;
941 if (state
.proportional
) {
942 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
943 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
946 maxw
= MAX (w
, maxw
);
951 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
954 ctm
= fz_rotate (state
.rotate
);
955 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
959 if (state
.proportional
) {
960 double scale
= w
/ maxw
;
961 zoom
= (state
.w
/ w
) * scale
;
967 p
->zoomctm
= fz_scale (zoom
, zoom
);
968 ctm
= fz_concat (p
->zoomctm
, ctm
);
970 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
971 p
->pagebox
.x1
-= p
->pagebox
.x0
;
972 p
->pagebox
.y1
-= p
->pagebox
.y0
;
975 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
978 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
982 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
983 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
984 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
990 while (p
-- != state
.pagedims
) {
991 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
992 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
993 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
994 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
998 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1002 static void recurse_outline (fz_outline
*outline
, int level
)
1007 struct pagedim
*pdim
= state
.pagedims
;
1009 dest
= &outline
->dest
;
1010 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1011 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1013 pdim
= &state
.pagedims
[i
];
1015 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1018 p
.y
= dest
->ld
.gotor
.lt
.y
;
1019 p
= fz_transform_point (pdim
->lctm
, p
);
1022 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1026 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1027 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1029 printd ("o %d %d %d %d %s",
1030 level
, dest
->ld
.gotor
.page
, top
, h
, outline
->title
);
1032 if (outline
->down
) {
1033 recurse_outline (outline
->down
, level
+ 1);
1035 outline
= outline
->next
;
1039 static void process_outline (void)
1041 fz_outline
*outline
;
1043 if (!state
.needoutline
) return;
1045 state
.needoutline
= 0;
1046 switch (state
.type
) {
1048 outline
= pdf_load_outline (state
.u
.pdf
);
1051 outline
= xps_load_outline (state
.u
.xps
);
1058 recurse_outline (outline
, 0);
1059 fz_free_outline (state
.ctx
, outline
);
1063 static int comparespans (const void *l
, const void *r
)
1065 fz_text_span
const *const*ls
= l
;
1066 fz_text_span
const *const*rs
= r
;
1067 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
1070 /* wishful thinking function */
1071 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1079 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1080 fz_text_span
*text
, *span
, **pspan
;
1081 struct pagedim
*pdim
, *pdimprev
;
1087 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1091 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1092 if (niters
++ == 5) {
1095 printd ("progress 1 attention requested aborting search at %d",
1100 printd ("progress %f searching in page %d",
1101 (double) (pageno
+ 1) / state
.pagecount
,
1106 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1107 pdim
= &state
.pagedims
[i
];
1108 if (pdim
->pageno
== pageno
) {
1111 if (pdim
->pageno
> pageno
) {
1120 text
= fz_new_text_span (state
.ctx
);
1121 tdev
= fz_new_text_device (state
.ctx
, text
);
1123 switch (state
.type
) {
1125 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1126 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, fz_identity
, NULL
);
1130 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1131 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, fz_identity
, NULL
);
1135 ARSERT (0 && state
.type
);
1138 fz_free_device (tdev
);
1141 for (span
= text
; span
; span
= span
->next
) {
1144 pspan
= malloc (sizeof (void *) * nspans
);
1146 err (1, "malloc span pointers %" FMT_s
, sizeof (void *) * nspans
);
1148 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
1151 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
1153 j
= forward
? 0 : nspans
- 1;
1158 j
+= forward
? 1 : -1;
1160 for (i
= 0; i
< span
->len
; ++i
) {
1165 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
1170 if (span
->text
[i
].bbox
.y0
> y
- 1) {
1174 len
= runetochar (cbuf
, &span
->text
[i
].c
);
1175 if (sizeof (buf
) - 1 - (p
- buf
) > len
) {
1177 for (k
= 0; k
< len
; ++k
)
1189 ret
= regexec (re
, buf
, 1, &rm
, 0);
1191 if (ret
!= REG_NOMATCH
) {
1194 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1195 printd ("msg regexec error `%.*s'",
1196 (int) size
, errbuf
);
1197 fz_free_text_span (state
.ctx
, text
);
1198 state
.freepage (u
.ptr
);
1205 fz_point p1
, p2
, p3
, p4
;
1209 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1210 c
+= runelen (span
->text
[a
].c
);
1212 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1213 c
+= runelen (span
->text
[b
].c
);
1216 if (runelen (span
->text
[b
].c
) > 1) {
1219 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1220 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1231 switch (state
.type
) {
1233 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1234 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1242 p1
= fz_transform_point (ctm
, p1
);
1243 p2
= fz_transform_point (ctm
, p2
);
1244 p3
= fz_transform_point (ctm
, p3
);
1245 p4
= fz_transform_point (ctm
, p4
);
1248 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1255 printd ("progress 1 found at %d `%.*s' in %f sec",
1256 pageno
, (int) (rm
.rm_eo
- rm
.rm_so
), &buf
[rm
.rm_so
],
1260 printd ("match %d %d %f %f %f %f %f %f %f %f",
1278 fz_free_text_span (state
.ctx
, text
);
1279 state
.freepage (u
.ptr
);
1284 printd ("progress 1 no matches %f sec", end
- start
);
1286 printd ("clearrects");
1289 static void set_tex_params (int colorspace
)
1291 switch (colorspace
) {
1293 state
.texiform
= GL_RGBA8
;
1294 state
.texform
= GL_RGBA
;
1295 state
.texty
= GL_UNSIGNED_BYTE
;
1296 state
.colorspace
= fz_device_rgb
;
1299 state
.texiform
= GL_RGBA8
;
1300 state
.texform
= GL_BGRA
;
1301 state
.texty
= fz_is_big_endian ()
1302 ? GL_UNSIGNED_INT_8_8_8_8
1303 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1304 state
.colorspace
= fz_device_bgr
;
1307 state
.texiform
= GL_LUMINANCE_ALPHA
;
1308 state
.texform
= GL_LUMINANCE_ALPHA
;
1309 state
.texty
= GL_UNSIGNED_BYTE
;
1310 state
.colorspace
= fz_device_gray
;
1313 errx (1, "invalid colorspce %d", colorspace
);
1317 static void realloctexts (int texcount
)
1321 if (texcount
== state
.texcount
) return;
1323 if (texcount
< state
.texcount
) {
1324 glDeleteTextures (state
.texcount
- texcount
,
1325 state
.texids
+ texcount
);
1328 size
= texcount
* sizeof (*state
.texids
);
1329 state
.texids
= realloc (state
.texids
, size
);
1330 if (!state
.texids
) {
1331 err (1, "realloc texids %" FMT_s
, size
);
1334 size
= texcount
* sizeof (*state
.texowners
);
1335 state
.texowners
= realloc (state
.texowners
, size
);
1336 if (!state
.texowners
) {
1337 err (1, "realloc texowners %" FMT_s
, size
);
1339 if (texcount
> state
.texcount
) {
1342 glGenTextures (texcount
- state
.texcount
,
1343 state
.texids
+ state
.texcount
);
1344 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1345 state
.texowners
[i
].w
= -1;
1346 state
.texowners
[i
].slice
= NULL
;
1349 state
.texcount
= texcount
;
1353 static void * mainloop (void *unused
)
1356 int len
, ret
, oldlen
= 0;
1361 errx (1, "readlen returned 0");
1364 if (oldlen
< len
+ 1) {
1365 p
= realloc (p
, len
+ 1);
1367 err (1, "realloc %d failed", len
+ 1);
1374 if (!strncmp ("open", p
, 4)) {
1377 char *filename
= p
+ 5;
1379 filenamelen
= strlen (filename
);
1380 password
= filename
+ filenamelen
+ 1;
1382 openxref (filename
, password
);
1385 printd ("msg Opened %s (press h/F1 to get help)", filename
);
1386 state
.needoutline
= 1;
1388 else if (!strncmp ("cs", p
, 2)) {
1391 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1393 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1396 set_tex_params (colorspace
);
1397 for (i
= 0; i
< state
.texcount
; ++i
) {
1398 state
.texowners
[i
].w
= -1;
1399 state
.texowners
[i
].slice
= NULL
;
1403 else if (!strncmp ("freepage", p
, 8)) {
1406 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1408 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1412 else if (!strncmp ("freetile", p
, 8)) {
1415 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1417 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1421 else if (!strncmp ("search", p
, 6)) {
1422 int icase
, pageno
, y
, ret
, len2
, forward
;
1426 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1427 &icase
, &pageno
, &y
, &forward
, &len2
);
1429 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1432 pattern
= p
+ 6 + len2
;
1433 ret
= regcomp (&re
, pattern
,
1434 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1439 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1440 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1443 search (&re
, pageno
, y
, forward
);
1447 else if (!strncmp ("geometry", p
, 8)) {
1451 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1453 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1461 for (i
= 0; i
< state
.texcount
; ++i
) {
1462 state
.texowners
[i
].slice
= NULL
;
1468 unlock ("geometry");
1469 printd ("continue %d", state
.pagecount
);
1471 else if (!strncmp ("reqlayout", p
, 9)) {
1472 int rotate
, proportional
;
1475 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1477 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1480 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1483 state
.rotate
= rotate
;
1484 state
.proportional
= proportional
;
1488 unlock ("reqlayout");
1489 printd ("continue %d", state
.pagecount
);
1491 else if (!strncmp ("page", p
, 4)) {
1494 int pageno
, pindex
, ret
;
1496 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1498 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1503 page
= loadpage (pageno
, pindex
);
1507 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1509 else if (!strncmp ("tile", p
, 4)) {
1510 int x
, y
, w
, h
, ret
;
1515 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d",
1516 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
);
1518 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1523 tile
= rendertile (page
, x
, y
, w
, h
);
1527 printd ("tile %d %d %" FMT_ptr
" %u %f",
1529 FMT_ptr_cast2 (tile
),
1530 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1533 else if (!strncmp ("settrim", p
, 7)) {
1537 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1538 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1540 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1544 state
.trimmargins
= trimmargins
;
1545 state
.needoutline
= 1;
1546 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1548 state
.trimfuzz
= fuzz
;
1550 state
.pagedimcount
= 0;
1551 free (state
.pagedims
);
1552 state
.pagedims
= NULL
;
1557 printd ("continue %d", state
.pagecount
);
1559 else if (!strncmp ("sliceh", p
, 6)) {
1562 ret
= sscanf (p
+ 6, " %d", &h
);
1564 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1566 if (h
!= state
.sliceheight
) {
1569 state
.sliceheight
= h
;
1570 for (i
= 0; i
< state
.texcount
; ++i
) {
1571 state
.texowners
[i
].w
= -1;
1572 state
.texowners
[i
].h
= -1;
1573 state
.texowners
[i
].slice
= NULL
;
1577 else if (!strncmp ("interrupt", p
, 9)) {
1578 printd ("vmsg interrupted");
1580 else if (!strncmp ("quit", p
, 4)) {
1584 errx (1, "unknown command %.*s", len
, p
);
1590 CAMLprim value
ml_realloctexts (value texcount_v
)
1592 CAMLparam1 (texcount_v
);
1595 if (trylock ("ml_realloctexts")) {
1599 realloctexts (Int_val (texcount_v
));
1601 unlock ("ml_realloctexts");
1604 CAMLreturn (Val_bool (ok
));
1607 static void showsel (struct page
*page
, int ox
, int oy
)
1611 struct mark first
, last
;
1613 first
= page
->fmark
;
1616 if (!first
.span
|| !last
.span
) return;
1618 glEnable (GL_BLEND
);
1619 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1620 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1622 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1623 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1624 for (span
= first
.span
; span
; span
= span
->next
) {
1627 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1632 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1633 j
= MIN (first
.i
, last
.i
);
1634 k
= MAX (first
.i
, last
.i
);
1636 else if (span
== first
.span
) {
1639 else if (span
== last
.span
) {
1643 for (i
= j
; i
<= k
; ++i
) {
1644 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1646 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1653 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1655 if (span
== last
.span
) break;
1657 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 void uploadslice (struct tile
*tile
, struct slice
*slice
)
1727 struct slice
*slice1
;
1730 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
1731 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
1733 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
1734 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1735 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1739 int texindex
= state
.texindex
++ % state
.texcount
;
1741 if (state
.texowners
[texindex
].w
== tile
->w
) {
1742 if (state
.texowners
[texindex
].h
>= slice
->h
) {
1746 state
.texowners
[texindex
].h
= slice
->h
;
1750 state
.texowners
[texindex
].h
= slice
->h
;
1753 state
.texowners
[texindex
].w
= tile
->w
;
1754 state
.texowners
[texindex
].slice
= slice
;
1755 slice
->texindex
= texindex
;
1757 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
1759 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1767 tile
->pixmap
->samples
+offset
1771 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1779 tile
->pixmap
->samples
+offset
1785 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
1787 CAMLparam2 (args_v
, ptr_v
);
1788 int dispx
= Int_val (Field (args_v
, 0));
1789 int dispy
= Int_val (Field (args_v
, 1));
1790 int dispw
= Int_val (Field (args_v
, 2));
1791 int disph
= Int_val (Field (args_v
, 3));
1792 int tilex
= Int_val (Field (args_v
, 4));
1793 int tiley
= Int_val (Field (args_v
, 5));
1794 char *s
= String_val (ptr_v
);
1795 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
1797 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1799 int slicey
, firstslice
;
1800 struct slice
*slice
;
1802 firstslice
= tiley
/ tile
->sliceheight
;
1803 slice
= &tile
->slices
[firstslice
];
1804 slicey
= tiley
% tile
->sliceheight
;
1809 dh
= slice
->h
- slicey
;
1810 dh
= MIN (disph
, dh
);
1811 uploadslice (tile
, slice
);
1815 glTexCoord2i (tilex
, slicey
);
1816 glVertex2i (dispx
, dispy
);
1818 glTexCoord2i (tilex
+dispw
, slicey
);
1819 glVertex2i (dispx
+dispw
, dispy
);
1821 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
1822 glVertex2i (dispx
+dispw
, dispy
+dh
);
1824 glTexCoord2i (tilex
, slicey
+dh
);
1825 glVertex2i (dispx
, dispy
+dh
);
1832 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
1836 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1837 CAMLreturn (Val_unit
);
1840 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
1841 value xoff_v
, value yoff_v
)
1843 CAMLparam4 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
);
1844 int xoff
= Int_val (xoff_v
);
1845 int yoff
= Int_val (yoff_v
);
1846 char *s
= String_val (ptr_v
);
1847 struct page
*page
= parse_pointer ("ml_postprocess", s
);
1849 if (Bool_val (hlinks_v
)) highlightlinks (page
, xoff
, yoff
);
1851 if (trylock ("ml_postprocess")) {
1854 showsel (page
, xoff
, yoff
);
1855 unlock ("ml_postprocess");
1858 CAMLreturn (Val_unit
);
1861 static fz_link
*getlink (struct page
*page
, int x
, int y
)
1865 fz_link
*link
, *links
;
1867 switch (page
->type
) {
1869 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
1870 links
= page
->u
.pdfpage
->links
;
1875 links
= page
->u
.xpspage
->links
;
1884 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
1885 ctm
= fz_invert_matrix (ctm
);
1886 p
= fz_transform_point (ctm
, p
);
1888 for (link
= links
; link
; link
= link
->next
) {
1889 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1890 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1898 static void droptext (struct page
*page
)
1901 fz_free_text_span (state
.ctx
, page
->text
);
1904 page
->fmark
.span
= NULL
;
1905 page
->lmark
.span
= NULL
;
1910 static void dropslinks (struct page
*page
)
1913 free (page
->slinks
);
1914 page
->slinks
= NULL
;
1915 page
->slinkcount
= 0;
1919 static void ensuretext (struct page
*page
)
1921 if (state
.gen
!= page
->gen
) {
1924 page
->gen
= state
.gen
;
1929 page
->text
= fz_new_text_span (state
.ctx
);
1930 tdev
= fz_new_text_device (state
.ctx
, page
->text
);
1931 fz_run_display_list (page
->dlist
,
1934 fz_infinite_bbox
, NULL
);
1935 fz_free_device (tdev
);
1939 static int compareslinks (const void *l
, const void *r
)
1941 struct slink
const *ls
= l
;
1942 struct slink
const *rs
= r
;
1943 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
1944 return rs
->bbox
.x0
- rs
->bbox
.x0
;
1946 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1949 static void ensureslinks (struct page
*page
)
1953 size_t slinksize
= sizeof (*page
->slinks
);
1954 fz_link
*link
, *links
;
1956 if (state
.gen
!= page
->gen
) {
1959 page
->gen
= state
.gen
;
1961 if (page
->slinks
) return;
1963 switch (page
->type
) {
1965 links
= page
->u
.pdfpage
->links
;
1966 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
1967 state
.pagedims
[page
->pdimno
].ctm
);
1971 links
= page
->u
.xpspage
->links
;
1972 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
1979 for (link
= links
; link
; link
= link
->next
) {
1983 page
->slinkcount
= count
;
1984 page
->slinks
= calloc (count
, slinksize
);
1985 if (!page
->slinks
) {
1986 err (1, "realloc slinks %d", count
);
1989 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
1990 page
->slinks
[i
].link
= link
;
1991 page
->slinks
[i
].bbox
=
1992 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
1994 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
1998 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2000 CAMLparam2 (start_page_v
, dir_v
);
2002 int i
, dir
= Int_val (dir_v
);
2003 int start_page
= Int_val (start_page_v
);
2004 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2006 ret_v
= Val_int (0);
2007 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2011 lock ("ml_findpage_with_links");
2012 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2015 switch (state
.type
) {
2018 pdf_page
*page
= pdf_load_page (state
.u
.pdf
, i
);
2019 found
= !!page
->links
;
2025 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2026 found
= !!page
->links
;
2032 ARSERT ("invalid document type");
2036 ret_v
= caml_alloc_small (1, 1);
2037 Field (ret_v
, 0) = Val_int (i
);
2042 unlock ("ml_findpage_with_links");
2048 enum { dir_first
, dir_last
};
2049 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2051 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2053 CAMLparam2 (ptr_v
, dir_v
);
2054 CAMLlocal2 (ret_v
, pos_v
);
2056 int dirtag
, i
, slinkindex
;
2057 struct slink
*found
= NULL
,*slink
;
2058 char *s
= String_val (ptr_v
);
2060 page
= parse_pointer ("ml_findlink", s
);
2061 ensureslinks (page
);
2063 ret_v
= Val_int (0);
2064 if (Is_block (dir_v
)) {
2065 dirtag
= Tag_val (dir_v
);
2067 case dir_first_visible
:
2069 int x0
, y0
, dir
, first_index
, last_index
;
2071 pos_v
= Field (dir_v
, 0);
2072 x0
= Int_val (Field (pos_v
, 0));
2073 y0
= Int_val (Field (pos_v
, 1));
2074 dir
= Int_val (Field (pos_v
, 2));
2079 last_index
= page
->slinkcount
;
2082 first_index
= page
->slinkcount
- 1;
2086 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2087 slink
= &page
->slinks
[i
];
2088 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2097 slinkindex
= Int_val (Field (dir_v
, 0));
2098 found
= &page
->slinks
[slinkindex
];
2099 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2100 slink
= &page
->slinks
[i
];
2101 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2109 slinkindex
= Int_val (Field (dir_v
, 0));
2110 found
= &page
->slinks
[slinkindex
];
2111 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2112 slink
= &page
->slinks
[i
];
2113 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2121 slinkindex
= Int_val (Field (dir_v
, 0));
2122 found
= &page
->slinks
[slinkindex
];
2123 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2124 slink
= &page
->slinks
[i
];
2125 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2133 slinkindex
= Int_val (Field (dir_v
, 0));
2134 found
= &page
->slinks
[slinkindex
];
2135 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2136 slink
= &page
->slinks
[i
];
2137 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2146 dirtag
= Int_val (dir_v
);
2149 found
= page
->slinks
;
2154 found
= page
->slinks
+ (page
->slinkcount
- 1);
2160 ret_v
= caml_alloc_small (2, 1);
2161 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2167 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2173 switch (link->dest.kind) { \
2174 case FZ_LINK_GOTO: \
2178 pageno = link->dest.ld.gotor.page; \
2182 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2183 p.y = link->dest.ld.gotor.lt.y; \
2184 p = fz_transform_point (pdim->lctm, p); \
2186 tup_v = caml_alloc_tuple (2); \
2187 ret_v = caml_alloc_small (1, ugoto); \
2188 Field (tup_v, 0) = Val_int (pageno); \
2189 Field (tup_v, 1) = Val_int (p.y); \
2190 Field (ret_v, 0) = tup_v; \
2195 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2196 ret_v = caml_alloc_small (1, uuri); \
2197 Field (ret_v, 0) = str_v; \
2200 case FZ_LINK_LAUNCH: \
2201 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2202 ret_v = caml_alloc_small (1, ulaunch); \
2203 Field (ret_v, 0) = str_v; \
2206 case FZ_LINK_NAMED: \
2207 str_v = caml_copy_string (link->dest.ld.named.named); \
2208 ret_v = caml_alloc_small (1, unamed); \
2209 Field (ret_v, 0) = str_v; \
2212 case FZ_LINK_GOTOR: \
2213 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2214 pageno = link->dest.ld.gotor.page; \
2215 tup_v = caml_alloc_tuple (2); \
2216 ret_v = caml_alloc_small (1, uremote); \
2217 Field (tup_v, 0) = str_v; \
2218 Field (tup_v, 1) = Val_int (pageno); \
2219 Field (ret_v, 0) = tup_v; \
2226 snprintf (buf, sizeof (buf), \
2227 "unhandled link kind %d", link->dest.kind); \
2228 str_v = caml_copy_string (buf); \
2229 ret_v = caml_alloc_small (1, uunexpected); \
2230 Field (ret_v, 0) = str_v; \
2236 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2238 CAMLparam2 (ptr_v
, n_v
);
2239 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2242 struct pagedim
*pdim
;
2243 char *s
= String_val (ptr_v
);
2245 ret_v
= Val_int (0);
2246 page
= parse_pointer ("ml_getlink", s
);
2247 ensureslinks (page
);
2248 pdim
= &state
.pagedims
[page
->pdimno
];
2249 link
= page
->slinks
[Int_val (n_v
)].link
;
2254 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2256 CAMLparam2 (ptr_v
, n_v
);
2259 struct slink
*slink
;
2260 char *s
= String_val (ptr_v
);
2262 page
= parse_pointer ("ml_getlinkrect", s
);
2263 ensureslinks (page
);
2265 slink
= &page
->slinks
[Int_val (n_v
)];
2266 ret_v
= caml_alloc_tuple (4);
2267 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2268 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2269 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2270 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2274 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2276 CAMLparam3 (ptr_v
, x_v
, y_v
);
2277 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2280 char *s
= String_val (ptr_v
);
2281 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2282 struct pagedim
*pdim
;
2284 ret_v
= Val_int (0);
2285 if (trylock ("ml_whatsunder")) {
2289 page
= parse_pointer ("ml_whatsunder", s
);
2290 pdim
= &state
.pagedims
[page
->pdimno
];
2291 x
+= pdim
->bounds
.x0
;
2292 y
+= pdim
->bounds
.y0
;
2293 link
= getlink (page
, x
, y
);
2302 for (span
= page
->text
; span
; span
= span
->next
) {
2303 for (i
= 0; i
< span
->len
; ++i
) {
2305 b
= &span
->text
[i
].bbox
;
2306 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
2308 span
->font
&& span
->font
->name
2310 : "Span has no font name"
2312 FT_FaceRec
*face
= span
->font
->ft_face
;
2313 if (face
&& face
->family_name
) {
2315 char *n1
= face
->family_name
;
2316 size_t l1
= strlen (n1
);
2317 size_t l2
= strlen (n2
);
2319 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2320 s
= malloc (l1
+ l2
+ 2);
2324 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2325 str_v
= caml_copy_string (s
);
2331 str_v
= caml_copy_string (n2
);
2333 ret_v
= caml_alloc_small (1, utext
);
2334 Field (ret_v
, 0) = str_v
;
2341 unlock ("ml_whatsunder");
2347 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2349 CAMLparam2 (ptr_v
, rect_v
);
2353 struct mark first
, last
;
2354 struct pagedim
*pdim
;
2355 int i
, x0
, x1
, y0
, y1
;
2356 char *s
= String_val (ptr_v
);
2358 if (trylock ("ml_seltext")) {
2362 page
= parse_pointer ("ml_seltext", s
);
2365 pdim
= &state
.pagedims
[page
->pdimno
];
2366 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2367 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2368 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2369 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2372 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2373 glColor3ub (128, 128, 128);
2374 glRecti (x0
, y0
, x1
, y1
);
2375 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2381 last
.i
= first
.i
= 0;
2382 first
.span
= page
->text
;
2383 for (span
= page
->text
; span
; span
= span
->next
) {
2384 for (i
= 0; i
< span
->len
; ++i
) {
2385 b
= &span
->text
[i
].bbox
;
2388 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
2393 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
2398 if (0 && selected
) {
2399 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2400 glColor3ub (128, 128, 128);
2401 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2402 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2407 if (y1
< y0
|| x1
< x0
) {
2410 if (first
.span
== last
.span
) {
2415 for (span
= first
.span
; span
&& span
!= last
.span
;
2416 span
= span
->next
) {
2429 first
.span
= last
.span
;
2435 page
->fmark
= first
;
2438 unlock ("ml_seltext");
2441 CAMLreturn (Val_unit
);
2444 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2449 for (i
= a
; i
<= b
; ++i
) {
2450 len
= runetochar (buf
, &span
->text
[i
].c
);
2451 ret
= fwrite (buf
, len
, 1, f
);
2454 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2455 len
, ret
, strerror (errno
));
2462 CAMLprim value
ml_copysel (value command_v
, value ptr_v
)
2468 char *s
= String_val (ptr_v
);
2469 char *command
= String_val (command_v
);
2471 if (trylock ("ml_copysel")) {
2475 page
= parse_pointer ("ml_sopysel", s
);
2477 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
2478 fprintf (stderr
, "nothing to copy\n");
2482 f
= popen (command
, "w");
2484 fprintf (stderr
, "failed to open sel pipe: %s\n",
2489 for (span
= page
->fmark
.span
;
2490 span
&& span
!= page
->lmark
.span
->next
;
2491 span
= span
->next
) {
2492 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
2493 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
2494 if (pipespan (f
, span
, a
, b
)) {
2498 if (putc ('\n', f
) == EOF
) {
2499 fprintf (stderr
, "failed break line on sel pipe: %s\n",
2505 page
->lmark
.span
= NULL
;
2506 page
->fmark
.span
= NULL
;
2510 int ret
= pclose (f
);
2512 if (errno
!= ECHILD
) {
2513 fprintf (stderr
, "failed to close sel pipe: %s\n",
2519 unlock ("ml_copysel");
2522 CAMLreturn (Val_unit
);
2525 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
2527 CAMLparam1 (pagedimno_v
);
2529 int pagedimno
= Int_val (pagedimno_v
);
2532 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
2533 if (trylock ("ml_getpdimrect")) {
2534 box
= fz_empty_rect
;
2537 box
= state
.pagedims
[pagedimno
].mediabox
;
2538 unlock ("ml_getpdimrect");
2541 Store_double_field (ret_v
, 0, box
.x0
);
2542 Store_double_field (ret_v
, 1, box
.x1
);
2543 Store_double_field (ret_v
, 2, box
.y0
);
2544 Store_double_field (ret_v
, 3, box
.y1
);
2549 static double getmaxw (void)
2555 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2558 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2559 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2562 maxw
= MAX (w
, maxw
);
2567 CAMLprim value
ml_getmaxw (value unit_v
)
2569 CAMLparam1 (unit_v
);
2573 if (trylock ("ml_getmaxw")) {
2577 unlock ("ml_getmaxw");
2579 ret_v
= caml_copy_double (maxw
);
2583 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
2585 CAMLparam3 (winw_v
, winh_v
, dw_v
);
2589 double maxw
= 0.0, maxh
= 0.0;
2591 double winw
= Int_val (winw_v
);
2592 double winh
= Int_val (winh_v
);
2593 double dw
= Int_val (dw_v
);
2594 double pw
= 1.0, ph
= 1.0, num
, den
;
2596 if (trylock ("ml_zoom_for_height")) {
2600 if (state
.proportional
) {
2604 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2605 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
2607 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2608 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2609 y0
= MIN (p
->mediabox
.y0
, p
->mediabox
.y1
);
2610 y1
= MAX (p
->mediabox
.y0
, p
->mediabox
.y1
);
2615 if (state
.proportional
) {
2617 scaledh
= h
* scale
;
2624 if (scaledh
> maxh
) {
2631 num
= (winh
* pw
) + (ph
* dw
);
2635 unlock ("ml_zoom_for_height");
2637 ret_v
= caml_copy_double (zoom
);
2643 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
2645 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
2647 int pt
= Int_val(pt_v
);
2648 int x
= Int_val (x_v
);
2649 int y
= Int_val (y_v
);
2652 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
2653 ret_v
= caml_copy_double (w
);
2657 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
2659 CAMLparam2 (pt_v
, string_v
);
2661 int pt
= Int_val (pt_v
);
2664 w
= measure_string (state
.face
, pt
, String_val (string_v
));
2665 ret_v
= caml_copy_double (w
);
2669 CAMLprim value
ml_getpagebox (value opaque_v
)
2671 CAMLparam1 (opaque_v
);
2675 char *s
= String_val (opaque_v
);
2676 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
2678 ret_v
= caml_alloc_tuple (4);
2679 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
2680 dev
->hints
|= FZ_IGNORE_SHADE
;
2682 switch (page
->type
) {
2684 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
2688 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
2692 bbox
= fz_infinite_bbox
;
2696 fz_free_device (dev
);
2697 Field (ret_v
, 0) = Val_int (bbox
.x0
);
2698 Field (ret_v
, 1) = Val_int (bbox
.y0
);
2699 Field (ret_v
, 2) = Val_int (bbox
.x1
);
2700 Field (ret_v
, 3) = Val_int (bbox
.y1
);
2705 CAMLprim value
ml_setaalevel (value level_v
)
2707 CAMLparam1 (level_v
);
2709 state
.aalevel
= Int_val (level_v
);
2710 CAMLreturn (Val_unit
);
2714 #include <X11/Xlib.h>
2720 GLXDrawable drawable
;
2723 #include "keysym2ucs.c"
2725 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
2727 CAMLparam1 (keysym_v
);
2729 KeySym keysym
= Int_val (keysym_v
);
2734 rune
= keysym2ucs (keysym
);
2735 len
= runetochar (buf
, &rune
);
2737 str_v
= caml_copy_string (buf
);
2741 CAMLprim value
ml_glx (value win_v
)
2745 XVisualInfo
*visual
;
2746 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
2748 glx
.dpy
= XOpenDisplay (NULL
);
2750 caml_failwith ("XOpenDisplay failed");
2753 screen
= DefaultScreen (glx
.dpy
);
2754 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
2756 XCloseDisplay (glx
.dpy
);
2758 caml_failwith ("glXChooseVisual");
2761 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
2763 XCloseDisplay (glx
.dpy
);
2766 caml_failwith ("glXCreateContext");
2770 if (!glXMakeCurrent (glx
.dpy
, Int_val (win_v
), glx
.ctx
)) {
2771 glXDestroyContext (glx
.dpy
, glx
.ctx
);
2772 XCloseDisplay (glx
.dpy
);
2775 caml_failwith ("glXMakeCurrent");
2777 glx
.drawable
= Int_val (win_v
);
2779 CAMLreturn (Val_unit
);
2782 CAMLprim value
ml_swapb (value unit_v
)
2784 CAMLparam1 (unit_v
);
2785 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
2786 CAMLreturn (Val_unit
);
2789 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
2790 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
2792 CAMLprim value
ml_platform (value unit_v
)
2794 CAMLparam1 (unit_v
);
2795 int platid
= piunknown
;
2797 #if defined __linux__
2799 #elif defined __CYGWIN__
2801 #elif defined __DragonFly__
2802 platid
= pidragonflybsd
;
2803 #elif defined __FreeBSD__
2805 #elif defined __OpenBSD__
2807 #elif defined __NetBSD__
2809 #elif defined __sun__
2811 #elif defined __APPLE__
2814 CAMLreturn (Val_int (platid
));
2817 CAMLprim value
ml_cloexec (value fd_v
)
2820 int fd
= Int_val (fd_v
);
2822 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
2823 uerror ("fcntl", Nothing
);
2825 CAMLreturn (Val_unit
);
2828 CAMLprim value
ml_init (value pipe_v
, value params_v
)
2830 CAMLparam2 (pipe_v
, params_v
);
2831 CAMLlocal2 (trim_v
, fuzz_v
);
2838 struct sigaction sa
;
2841 state
.cr
= Int_val (Field (pipe_v
, 0));
2842 state
.cw
= Int_val (Field (pipe_v
, 1));
2843 state
.rotate
= Int_val (Field (params_v
, 0));
2844 state
.proportional
= Bool_val (Field (params_v
, 1));
2845 trim_v
= Field (params_v
, 2);
2846 texcount
= Int_val (Field (params_v
, 3));
2847 state
.sliceheight
= Int_val (Field (params_v
, 4));
2848 mustoresize
= Int_val (Field (params_v
, 5));
2849 colorspace
= Int_val (Field (params_v
, 6));
2850 fontpath
= String_val (Field (params_v
, 7));
2852 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
2854 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
2855 fuzz_v
= Field (trim_v
, 1);
2856 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
2857 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
2858 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
2859 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
2861 set_tex_params (colorspace
);
2864 state
.face
= load_font (fontpath
);
2868 void *base
= pdf_find_substitute_font (0, 0, 0, 0, &len
);
2870 state
.face
= load_builtin_font (base
, len
);
2872 if (!state
.face
) _exit (1);
2874 realloctexts (texcount
);
2877 sa
.sa_handler
= SIG_DFL
;
2878 if (sigemptyset (&sa
.sa_mask
)) {
2879 err (1, "sigemptyset");
2881 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
2882 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
2883 err (1, "sigaction");
2887 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
2889 errx (1, "pthread_create: %s", strerror (ret
));
2892 CAMLreturn (Val_unit
);