1 /* lots of code c&p-ed directly from mupdf */
12 #include <sys/types.h>
13 #include <sys/ioctl.h>
21 #include <OpenGL/gl.h>
26 #include <caml/fail.h>
27 #include <caml/alloc.h>
28 #include <caml/memory.h>
29 #include <caml/unixsupport.h>
36 #include FT_FREETYPE_H
41 #define NORETURN __attribute__ ((noreturn))
42 #define UNUSED __attribute__ ((unused))
43 #define OPTIMIZE(n) __attribute__ ((optimize ("O"#n)))
44 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
49 #define GCC_FMT_ATTR(a, b)
55 #define FMT_ptr_cast(p) (p)
56 #define FMT_ptr_cast2(p) (p)
59 static void NORETURN
GCC_FMT_ATTR (2, 3)
60 err (int exitcode
, const char *fmt
, ...)
67 vfprintf (stderr
, fmt
, ap
);
69 fprintf (stderr
, ": %s\n", strerror (savederrno
));
74 static void NORETURN
GCC_FMT_ATTR (2, 3)
75 errx (int exitcode
, const char *fmt
, ...)
80 vfprintf (stderr
, fmt
, ap
);
87 #ifndef GL_TEXTURE_RECTANGLE_ARB
88 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
92 #define GL_BGRA 0x80E1
95 #ifndef GL_UNSIGNED_INT_8_8_8_8
96 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
99 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
100 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
104 #define lprintf printf
109 #define ARSERT(cond) for (;;) { \
111 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
126 struct slice slices
[1];
137 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
145 enum { DPDF
, DXPS
, DCBZ
};
159 fz_display_list
*dlist
;
161 struct slink
*slinks
;
166 void (*freepage
) (void *);
172 struct pagedim
*pagedims
;
181 fz_glyph_cache
*cache
;
192 fz_colorspace
*colorspace
;
214 void (*closedoc
) (void);
215 void (*freepage
) (void *);
218 static void UNUSED
debug_rect (const char *cap
, fz_rect r
)
220 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
223 static void UNUSED
debug_bbox (const char *cap
, fz_bbox r
)
225 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
228 static void UNUSED
debug_matrix (const char *cap
, fz_matrix m
)
230 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
231 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
234 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
236 static void lock (const char *cap
)
238 int ret
= pthread_mutex_lock (&mutex
);
240 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
244 static void unlock (const char *cap
)
246 int ret
= pthread_mutex_unlock (&mutex
);
248 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
252 static int trylock (const char *cap
)
254 int ret
= pthread_mutex_trylock (&mutex
);
256 if (ret
&& ret
!= EBUSY
) {
257 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
262 static void *parse_pointer (const char *cap
, const char *s
)
267 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
269 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
274 static double now (void)
278 if (gettimeofday (&tv
, NULL
)) {
279 err (1, "gettimeofday");
281 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
284 static int hasdata (void)
287 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
288 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
292 CAMLprim value
ml_hasdata (value fd_v
)
297 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
298 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
299 CAMLreturn (Val_bool (avail
> 0));
302 static void readdata (void *p
, int size
)
306 n
= read (state
.cr
, p
, size
);
308 if (!n
) errx (1, "EOF while reading");
309 err (1, "read (req %d, ret %zd)", size
, n
);
313 static void writedata (char *p
, int size
)
318 buf
[0] = (size
>> 24) & 0xff;
319 buf
[1] = (size
>> 16) & 0xff;
320 buf
[2] = (size
>> 8) & 0xff;
321 buf
[3] = (size
>> 0) & 0xff;
323 n
= write (state
.cw
, buf
, 4);
325 if (!n
) errx (1, "EOF while writing length");
326 err (1, "write %zd", n
);
329 n
= write (state
.cw
, p
, size
);
331 if (!n
) errx (1, "EOF while writing data");
332 err (1, "write (req %d, ret %zd)", size
, n
);
336 static int readlen (void)
341 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
344 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
352 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
355 len
= vsnprintf (buf
, size
, fmt
, ap
);
358 if (len
> -1 && len
< size
) {
359 writedata (buf
, len
);
369 buf
= realloc (buf
, size
);
374 static void closepdf (void)
377 pdf_close_document (state
.u
.pdf
);
382 static void closexps (void)
385 xps_close_document (state
.u
.xps
);
390 static void closecbz (void)
393 cbz_close_document (state
.u
.cbz
);
398 static void freepdfpage (void *ptr
)
400 pdf_free_page (state
.u
.pdf
, ptr
);
403 static void freexpspage (void *ptr
)
405 xps_free_page (state
.u
.xps
, ptr
);
408 static void freecbzpage (void *ptr
)
410 cbz_free_page (state
.u
.cbz
, ptr
);
413 static void openxref (char *filename
, char *password
)
417 for (i
= 0; i
< state
.texcount
; ++i
) {
418 state
.texowners
[i
].w
= -1;
419 state
.texowners
[i
].slice
= NULL
;
422 if (state
.closedoc
) state
.closedoc ();
424 len
= strlen (filename
);
430 ext
[0] = tolower (filename
[len
-3]);
431 ext
[1] = tolower (filename
[len
-2]);
432 ext
[2] = tolower (filename
[len
-1]);
434 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
437 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
442 if (state
.pagedims
) {
443 free (state
.pagedims
);
444 state
.pagedims
= NULL
;
446 state
.pagedimcount
= 0;
448 fz_set_aa_level (state
.ctx
, state
.aalevel
);
449 switch (state
.type
) {
451 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
452 if (pdf_needs_password (state
.u
.pdf
)) {
453 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
455 errx (1, "invalid password");
458 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
459 state
.closedoc
= closepdf
;
460 state
.freepage
= freepdfpage
;
464 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
465 state
.pagecount
= xps_count_pages (state
.u
.xps
);
466 state
.closedoc
= closexps
;
467 state
.freepage
= freexpspage
;
471 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
472 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
473 state
.closedoc
= closecbz
;
474 state
.freepage
= freecbzpage
;
479 static void pdfinfo (void)
481 if (state
.type
== DPDF
) {
484 printd ("info PDF version\t%d.%d",
485 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
487 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
491 char *items
[] = { "Title", "Author", "Creator",
492 "Producer", "CreationDate" };
494 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
495 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
496 s
= pdf_to_utf8 (state
.ctx
, obj
);
499 printd ("title %s", s
);
501 printd ("info %s\t%s", items
[i
], s
);
503 fz_free (state
.ctx
, s
);
510 static void unlinktile (struct tile
*tile
)
514 for (i
= 0; i
< tile
->slicecount
; ++i
) {
515 struct slice
*s
= &tile
->slices
[i
];
517 if (s
->texindex
!= -1) {
518 if (state
.texowners
[s
->texindex
].slice
== s
) {
519 state
.texowners
[s
->texindex
].slice
= NULL
;
525 static void freepage (struct page
*page
)
528 fz_free_text_span (state
.ctx
, page
->text
);
533 page
->freepage (page
->u
.ptr
);
534 fz_free_display_list (state
.ctx
, page
->dlist
);
538 static void freetile (struct tile
*tile
)
542 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
545 fz_drop_pixmap (state
.ctx
, state
.pig
);
547 state
.pig
= tile
->pixmap
;
555 static int cacheline32bytes
;
556 extern char **environ
;
558 static void __attribute__ ((constructor
)) clcheck (void)
560 char **envp
= environ
;
565 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
567 cacheline32bytes
= auxv
[1] == 32;
573 static void OPTIMIZE (3) clearpixmap (fz_pixmap
*pixmap
)
575 if (cacheline32bytes
) {
576 intptr_t a1
, a2
, diff
;
577 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
578 vector
unsigned char v
= vec_splat_u8 (-1);
579 vector
unsigned char *p
;
581 a1
= a2
= (intptr_t) pixmap
->samples
;
582 a2
= (a1
+ 31) & ~31;
587 while (a1
!= a2
) *(char *) a1
++ = 0xff;
588 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
589 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
591 vec_st (v
, i
+ 16, p
);
593 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
595 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
598 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
601 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
604 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
606 if (!pdim
->tctmready
) {
607 if (state
.trimmargins
) {
610 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
611 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
612 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
613 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
624 static fz_matrix
pagectm (struct page
*page
)
626 if (page
->type
== DPDF
) {
627 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
628 state
.pagedims
[page
->pdimno
].ctm
);
632 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
634 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
635 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
636 -pdim
->mediabox
.y0
), ctm
);
641 static void *loadpage (int pageno
, int pindex
)
644 struct page
*page
= NULL
;
646 page
= calloc (sizeof (struct page
), 1);
648 err (1, "calloc page %d", pageno
);
651 page
->dlist
= fz_new_display_list (state
.ctx
);
652 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
653 switch (state
.type
) {
655 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
656 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
657 page
->freepage
= freepdfpage
;
661 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
662 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
663 page
->freepage
= freexpspage
;
667 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
668 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
669 page
->freepage
= freecbzpage
;
672 fz_free_device (dev
);
674 page
->pdimno
= pindex
;
675 page
->pageno
= pageno
;
676 page
->gen
= state
.gen
;
677 page
->type
= state
.type
;
682 static struct tile
*alloctile (int h
)
689 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
690 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
691 tile
= calloc (tilesize
, 1);
693 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
695 for (i
= 0; i
< slicecount
; ++i
) {
696 int sh
= MIN (h
, state
.sliceheight
);
697 tile
->slices
[i
].h
= sh
;
698 tile
->slices
[i
].texindex
= -1;
701 tile
->slicecount
= slicecount
;
702 tile
->sliceheight
= state
.sliceheight
;
706 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
)
711 struct pagedim
*pdim
;
713 tile
= alloctile (h
);
714 pdim
= &state
.pagedims
[page
->pdimno
];
719 bbox
.x1
= bbox
.x0
+ w
;
720 bbox
.y1
= bbox
.y0
+ h
;
723 if (state
.pig
->w
== w
725 && state
.pig
->colorspace
== state
.colorspace
) {
726 tile
->pixmap
= state
.pig
;
727 tile
->pixmap
->x
= bbox
.x0
;
728 tile
->pixmap
->y
= bbox
.y0
;
731 fz_drop_pixmap (state
.ctx
, state
.pig
);
737 fz_new_pixmap_with_rect (state
.ctx
, state
.colorspace
, bbox
);
742 clearpixmap (tile
->pixmap
);
743 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
744 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
745 fz_free_device (dev
);
750 static void initpdims (void)
756 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
761 switch (state
.type
) {
763 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
765 if (state
.trimmargins
) {
769 page
= pdf_load_page (state
.u
.pdf
, pageno
);
770 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
771 if (state
.trimanew
|| !obj
) {
777 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
778 dev
->hints
|= FZ_IGNORE_SHADE
;
779 ctm
= fz_invert_matrix (page
->ctm
);
780 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
781 fz_free_device (dev
);
783 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
784 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
785 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
786 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
787 rect
= fz_transform_rect (ctm
, rect
);
788 rect
= fz_intersect_rect (rect
, page
->mediabox
);
790 if (fz_is_empty_rect (rect
)) {
791 mediabox
= page
->mediabox
;
797 obj
= pdf_new_array (state
.ctx
, 4);
798 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
799 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
800 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
801 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
802 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
805 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
806 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
807 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
808 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
811 rotate
= page
->rotate
;
812 pdf_free_page (state
.u
.pdf
, page
);
814 printd ("progress %f Trimming %d",
815 (double) (pageno
+ 1) / state
.pagecount
,
821 mediabox
= pdf_to_rect (state
.ctx
,
822 pdf_dict_gets (pageobj
, "MediaBox"));
823 if (fz_is_empty_rect (mediabox
)) {
824 fprintf (stderr
, "cannot find page size for page %d\n",
832 cropbox
= pdf_to_rect (state
.ctx
,
833 pdf_dict_gets (pageobj
, "CropBox"));
834 if (!fz_is_empty_rect (cropbox
)) {
835 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
837 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
846 page
= xps_load_page (state
.u
.xps
, pageno
);
847 mediabox
= xps_bound_page (state
.u
.xps
, page
);
849 if (state
.trimmargins
) {
854 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
855 dev
->hints
|= FZ_IGNORE_SHADE
;
856 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
857 fz_free_device (dev
);
859 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
860 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
861 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
862 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
863 rect
= fz_intersect_rect (rect
, mediabox
);
865 if (!fz_is_empty_rect (rect
)) {
869 xps_free_page (state
.u
.xps
, page
);
870 printd ("progress %f loading %d",
871 (double) (pageno
+ 1) / state
.pagecount
,
879 if (state
.trimmargins
) {
882 page
= cbz_load_page (state
.u
.cbz
, pageno
);
883 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
884 cbz_free_page (state
.u
.cbz
, page
);
885 printd ("progress %f Trimming %d",
886 (double) (pageno
+ 1) / state
.pagecount
,
890 mediabox
.x0
= mediabox
.y0
= 0;
898 ARSERT (0 && state
.type
);
901 if (state
.pagedimcount
== 0
902 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
903 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
906 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
907 state
.pagedims
= realloc (state
.pagedims
, size
);
908 if (!state
.pagedims
) {
909 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
910 size
, state
.pagedimcount
+ 1);
913 p
= &state
.pagedims
[state
.pagedimcount
++];
915 p
->mediabox
= mediabox
;
920 if (state
.trimmargins
) {
921 printd ("progress 1 Trimmed %d pages in %f seconds",
922 state
.pagecount
, end
- start
);
925 printd ("vmsg Processed %d pages in %f seconds",
926 state
.pagecount
, end
- start
);
931 static void layout (void)
936 double zoom
, w
, maxw
= 0;
937 struct pagedim
*p
= state
.pagedims
;
939 if (state
.proportional
) {
940 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
941 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
944 maxw
= MAX (w
, maxw
);
949 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
952 ctm
= fz_rotate (state
.rotate
);
953 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
957 if (state
.proportional
) {
958 double scale
= w
/ maxw
;
959 zoom
= (state
.w
/ w
) * scale
;
965 p
->zoomctm
= fz_scale (zoom
, zoom
);
966 ctm
= fz_concat (p
->zoomctm
, ctm
);
968 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
969 p
->pagebox
.x1
-= p
->pagebox
.x0
;
970 p
->pagebox
.y1
-= p
->pagebox
.y0
;
973 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
976 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
980 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
981 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
982 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
988 while (p
-- != state
.pagedims
) {
989 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
990 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
991 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
992 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
996 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1000 static void recurse_outline (fz_outline
*outline
, int level
)
1005 struct pagedim
*pdim
= state
.pagedims
;
1007 dest
= &outline
->dest
;
1008 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1009 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1011 pdim
= &state
.pagedims
[i
];
1013 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1016 p
.y
= dest
->ld
.gotor
.lt
.y
;
1017 p
= fz_transform_point (pdim
->lctm
, p
);
1020 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1024 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1025 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1027 printd ("o %d %d %d %d %s",
1028 level
, dest
->ld
.gotor
.page
, top
, h
, outline
->title
);
1030 if (outline
->down
) {
1031 recurse_outline (outline
->down
, level
+ 1);
1033 outline
= outline
->next
;
1037 static void process_outline (void)
1039 fz_outline
*outline
;
1041 if (!state
.needoutline
) return;
1043 state
.needoutline
= 0;
1044 switch (state
.type
) {
1046 outline
= pdf_load_outline (state
.u
.pdf
);
1049 outline
= xps_load_outline (state
.u
.xps
);
1056 recurse_outline (outline
, 0);
1057 fz_free_outline (state
.ctx
, outline
);
1061 static int comparespans (const void *l
, const void *r
)
1063 fz_text_span
const *const*ls
= l
;
1064 fz_text_span
const *const*rs
= r
;
1065 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
1068 /* wishful thinking function */
1069 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1077 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1078 fz_text_span
*text
, *span
, **pspan
;
1079 struct pagedim
*pdim
, *pdimprev
;
1085 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1089 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1090 if (niters
++ == 5) {
1093 printd ("progress 1 attention requested aborting search at %d",
1098 printd ("progress %f searching in page %d",
1099 (double) (pageno
+ 1) / state
.pagecount
,
1104 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1105 pdim
= &state
.pagedims
[i
];
1106 if (pdim
->pageno
== pageno
) {
1109 if (pdim
->pageno
> pageno
) {
1118 text
= fz_new_text_span (state
.ctx
);
1119 tdev
= fz_new_text_device (state
.ctx
, text
);
1121 switch (state
.type
) {
1123 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1124 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, fz_identity
, NULL
);
1128 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1129 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, fz_identity
, NULL
);
1133 ARSERT (0 && state
.type
);
1136 fz_free_device (tdev
);
1139 for (span
= text
; span
; span
= span
->next
) {
1142 pspan
= malloc (sizeof (void *) * nspans
);
1144 err (1, "malloc span pointers %" FMT_s
, sizeof (void *) * nspans
);
1146 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
1149 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
1151 j
= forward
? 0 : nspans
- 1;
1156 j
+= forward
? 1 : -1;
1158 for (i
= 0; i
< span
->len
; ++i
) {
1163 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
1168 if (span
->text
[i
].bbox
.y0
> y
- 1) {
1172 len
= runetochar (cbuf
, &span
->text
[i
].c
);
1173 if (sizeof (buf
) - 1 - (p
- buf
) > len
) {
1175 for (k
= 0; k
< len
; ++k
)
1187 ret
= regexec (re
, buf
, 1, &rm
, 0);
1189 if (ret
!= REG_NOMATCH
) {
1192 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1193 printd ("msg regexec error `%.*s'",
1194 (int) size
, errbuf
);
1195 fz_free_text_span (state
.ctx
, text
);
1196 state
.freepage (u
.ptr
);
1203 fz_point p1
, p2
, p3
, p4
;
1207 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1208 c
+= runelen (span
->text
[a
].c
);
1210 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1211 c
+= runelen (span
->text
[b
].c
);
1214 if (runelen (span
->text
[b
].c
) > 1) {
1217 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1218 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1229 switch (state
.type
) {
1231 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1232 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1240 p1
= fz_transform_point (ctm
, p1
);
1241 p2
= fz_transform_point (ctm
, p2
);
1242 p3
= fz_transform_point (ctm
, p3
);
1243 p4
= fz_transform_point (ctm
, p4
);
1246 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1253 printd ("progress 1 found at %d `%.*s' in %f sec",
1254 pageno
, (int) (rm
.rm_eo
- rm
.rm_so
), &buf
[rm
.rm_so
],
1258 printd ("match %d %d %f %f %f %f %f %f %f %f",
1276 fz_free_text_span (state
.ctx
, text
);
1277 state
.freepage (u
.ptr
);
1282 printd ("progress 1 no matches %f sec", end
- start
);
1284 printd ("clearrects");
1287 static void set_tex_params (int colorspace
)
1289 switch (colorspace
) {
1291 state
.texiform
= GL_RGBA8
;
1292 state
.texform
= GL_RGBA
;
1293 state
.texty
= GL_UNSIGNED_BYTE
;
1294 state
.colorspace
= fz_device_rgb
;
1297 state
.texiform
= GL_RGBA8
;
1298 state
.texform
= GL_BGRA
;
1299 state
.texty
= fz_is_big_endian ()
1300 ? GL_UNSIGNED_INT_8_8_8_8
1301 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1302 state
.colorspace
= fz_device_bgr
;
1305 state
.texiform
= GL_LUMINANCE_ALPHA
;
1306 state
.texform
= GL_LUMINANCE_ALPHA
;
1307 state
.texty
= GL_UNSIGNED_BYTE
;
1308 state
.colorspace
= fz_device_gray
;
1311 errx (1, "invalid colorspce %d", colorspace
);
1315 static void realloctexts (int texcount
)
1319 if (texcount
== state
.texcount
) return;
1321 if (texcount
< state
.texcount
) {
1322 glDeleteTextures (state
.texcount
- texcount
,
1323 state
.texids
+ texcount
);
1326 size
= texcount
* sizeof (*state
.texids
);
1327 state
.texids
= realloc (state
.texids
, size
);
1328 if (!state
.texids
) {
1329 err (1, "realloc texids %" FMT_s
, size
);
1332 size
= texcount
* sizeof (*state
.texowners
);
1333 state
.texowners
= realloc (state
.texowners
, size
);
1334 if (!state
.texowners
) {
1335 err (1, "realloc texowners %" FMT_s
, size
);
1337 if (texcount
> state
.texcount
) {
1340 glGenTextures (texcount
- state
.texcount
,
1341 state
.texids
+ state
.texcount
);
1342 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1343 state
.texowners
[i
].w
= -1;
1344 state
.texowners
[i
].slice
= NULL
;
1347 state
.texcount
= texcount
;
1351 static void * mainloop (void *unused
)
1354 int len
, ret
, oldlen
= 0;
1359 errx (1, "readlen returned 0");
1362 if (oldlen
< len
+ 1) {
1363 p
= realloc (p
, len
+ 1);
1365 err (1, "realloc %d failed", len
+ 1);
1372 if (!strncmp ("open", p
, 4)) {
1375 char *filename
= p
+ 5;
1377 filenamelen
= strlen (filename
);
1378 password
= filename
+ filenamelen
+ 1;
1380 openxref (filename
, password
);
1383 printd ("msg Opened %s (press h/F1 to get help)", filename
);
1384 state
.needoutline
= 1;
1386 else if (!strncmp ("cs", p
, 2)) {
1389 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1391 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1394 set_tex_params (colorspace
);
1395 for (i
= 0; i
< state
.texcount
; ++i
) {
1396 state
.texowners
[i
].w
= -1;
1397 state
.texowners
[i
].slice
= NULL
;
1401 else if (!strncmp ("freepage", p
, 8)) {
1404 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1406 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1410 else if (!strncmp ("freetile", p
, 8)) {
1413 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1415 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1419 else if (!strncmp ("search", p
, 6)) {
1420 int icase
, pageno
, y
, ret
, len2
, forward
;
1424 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1425 &icase
, &pageno
, &y
, &forward
, &len2
);
1427 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1430 pattern
= p
+ 6 + len2
;
1431 ret
= regcomp (&re
, pattern
,
1432 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1437 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1438 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1441 search (&re
, pageno
, y
, forward
);
1445 else if (!strncmp ("geometry", p
, 8)) {
1449 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1451 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1459 for (i
= 0; i
< state
.texcount
; ++i
) {
1460 state
.texowners
[i
].slice
= NULL
;
1466 unlock ("geometry");
1467 printd ("continue %d", state
.pagecount
);
1469 else if (!strncmp ("reqlayout", p
, 9)) {
1470 int rotate
, proportional
;
1473 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1475 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1478 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1481 state
.rotate
= rotate
;
1482 state
.proportional
= proportional
;
1486 unlock ("reqlayout");
1487 printd ("continue %d", state
.pagecount
);
1489 else if (!strncmp ("page", p
, 4)) {
1492 int pageno
, pindex
, ret
;
1494 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1496 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1501 page
= loadpage (pageno
, pindex
);
1505 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1507 else if (!strncmp ("tile", p
, 4)) {
1508 int x
, y
, w
, h
, ret
;
1513 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d",
1514 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
);
1516 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1521 tile
= rendertile (page
, x
, y
, w
, h
);
1525 printd ("tile %d %d %" FMT_ptr
" %u %f",
1527 FMT_ptr_cast2 (tile
),
1528 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1531 else if (!strncmp ("settrim", p
, 7)) {
1535 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1536 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1538 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1542 state
.trimmargins
= trimmargins
;
1543 state
.needoutline
= 1;
1544 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1546 state
.trimfuzz
= fuzz
;
1548 state
.pagedimcount
= 0;
1549 free (state
.pagedims
);
1550 state
.pagedims
= NULL
;
1555 printd ("continue %d", state
.pagecount
);
1557 else if (!strncmp ("sliceh", p
, 6)) {
1560 ret
= sscanf (p
+ 6, " %d", &h
);
1562 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1564 if (h
!= state
.sliceheight
) {
1567 state
.sliceheight
= h
;
1568 for (i
= 0; i
< state
.texcount
; ++i
) {
1569 state
.texowners
[i
].w
= -1;
1570 state
.texowners
[i
].h
= -1;
1571 state
.texowners
[i
].slice
= NULL
;
1575 else if (!strncmp ("interrupt", p
, 9)) {
1576 printd ("vmsg interrupted");
1578 else if (!strncmp ("quit", p
, 4)) {
1582 errx (1, "unknown command %.*s", len
, p
);
1588 CAMLprim value
ml_realloctexts (value texcount_v
)
1590 CAMLparam1 (texcount_v
);
1593 if (trylock ("ml_realloctexts")) {
1597 realloctexts (Int_val (texcount_v
));
1599 unlock ("ml_realloctexts");
1602 CAMLreturn (Val_bool (ok
));
1605 static void showsel (struct page
*page
, int ox
, int oy
)
1609 struct mark first
, last
;
1611 first
= page
->fmark
;
1614 if (!first
.span
|| !last
.span
) return;
1616 glEnable (GL_BLEND
);
1617 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1618 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1620 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1621 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1622 for (span
= first
.span
; span
; span
= span
->next
) {
1625 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1630 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1631 j
= MIN (first
.i
, last
.i
);
1632 k
= MAX (first
.i
, last
.i
);
1634 else if (span
== first
.span
) {
1637 else if (span
== last
.span
) {
1641 for (i
= j
; i
<= k
; ++i
) {
1642 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1644 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1651 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1653 if (span
== last
.span
) break;
1655 glDisable (GL_BLEND
);
1658 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
1661 fz_link
*link
, *links
;
1663 switch (page
->type
) {
1665 links
= page
->u
.pdfpage
->links
;
1669 links
= page
->u
.xpspage
->links
;
1676 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1677 glEnable (GL_LINE_STIPPLE
);
1678 glLineStipple (0.5, 0xcccc);
1680 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1681 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1682 ctm
= fz_concat (pagectm (page
), fz_translate (xoff
, yoff
));
1685 for (link
= links
; link
; link
= link
->next
) {
1686 fz_point p1
, p2
, p3
, p4
;
1688 p1
.x
= link
->rect
.x0
;
1689 p1
.y
= link
->rect
.y0
;
1691 p2
.x
= link
->rect
.x1
;
1692 p2
.y
= link
->rect
.y0
;
1694 p3
.x
= link
->rect
.x1
;
1695 p3
.y
= link
->rect
.y1
;
1697 p4
.x
= link
->rect
.x0
;
1698 p4
.y
= link
->rect
.y1
;
1700 p1
= fz_transform_point (ctm
, p1
);
1701 p2
= fz_transform_point (ctm
, p2
);
1702 p3
= fz_transform_point (ctm
, p3
);
1703 p4
= fz_transform_point (ctm
, p4
);
1705 switch (link
->dest
.kind
) {
1706 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1707 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
1708 default: glColor3ub (0, 0, 0); break;
1711 glVertex2f (p1
.x
, p1
.y
);
1712 glVertex2f (p2
.x
, p2
.y
);
1713 glVertex2f (p3
.x
, p3
.y
);
1714 glVertex2f (p4
.x
, p4
.y
);
1718 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1719 glDisable (GL_LINE_STIPPLE
);
1722 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
1725 struct slice
*slice1
;
1728 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
1729 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
1731 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
1732 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1733 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1737 int texindex
= state
.texindex
++ % state
.texcount
;
1739 if (state
.texowners
[texindex
].w
== tile
->w
) {
1740 if (state
.texowners
[texindex
].h
>= slice
->h
) {
1744 state
.texowners
[texindex
].h
= slice
->h
;
1748 state
.texowners
[texindex
].h
= slice
->h
;
1751 state
.texowners
[texindex
].w
= tile
->w
;
1752 state
.texowners
[texindex
].slice
= slice
;
1753 slice
->texindex
= texindex
;
1755 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
1757 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1765 tile
->pixmap
->samples
+offset
1769 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1777 tile
->pixmap
->samples
+offset
1783 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
1785 CAMLparam2 (args_v
, ptr_v
);
1786 int dispx
= Int_val (Field (args_v
, 0));
1787 int dispy
= Int_val (Field (args_v
, 1));
1788 int dispw
= Int_val (Field (args_v
, 2));
1789 int disph
= Int_val (Field (args_v
, 3));
1790 int tilex
= Int_val (Field (args_v
, 4));
1791 int tiley
= Int_val (Field (args_v
, 5));
1792 char *s
= String_val (ptr_v
);
1793 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
1795 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1797 int slicey
, firstslice
;
1798 struct slice
*slice
;
1800 firstslice
= tiley
/ tile
->sliceheight
;
1801 slice
= &tile
->slices
[firstslice
];
1802 slicey
= tiley
% tile
->sliceheight
;
1807 dh
= slice
->h
- slicey
;
1808 dh
= MIN (disph
, dh
);
1809 uploadslice (tile
, slice
);
1813 glTexCoord2i (tilex
, slicey
);
1814 glVertex2i (dispx
, dispy
);
1816 glTexCoord2i (tilex
+dispw
, slicey
);
1817 glVertex2i (dispx
+dispw
, dispy
);
1819 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
1820 glVertex2i (dispx
+dispw
, dispy
+dh
);
1822 glTexCoord2i (tilex
, slicey
+dh
);
1823 glVertex2i (dispx
, dispy
+dh
);
1830 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
1834 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1835 CAMLreturn (Val_unit
);
1838 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
1839 value xoff_v
, value yoff_v
)
1841 CAMLparam4 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
);
1842 int xoff
= Int_val (xoff_v
);
1843 int yoff
= Int_val (yoff_v
);
1844 char *s
= String_val (ptr_v
);
1845 struct page
*page
= parse_pointer ("ml_postprocess", s
);
1847 if (Bool_val (hlinks_v
)) highlightlinks (page
, xoff
, yoff
);
1849 if (trylock ("ml_postprocess")) {
1852 showsel (page
, xoff
, yoff
);
1853 unlock ("ml_postprocess");
1856 CAMLreturn (Val_unit
);
1859 static fz_link
*getlink (struct page
*page
, int x
, int y
)
1863 fz_link
*link
, *links
;
1865 switch (page
->type
) {
1867 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
1868 links
= page
->u
.pdfpage
->links
;
1873 links
= page
->u
.xpspage
->links
;
1882 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
1883 ctm
= fz_invert_matrix (ctm
);
1884 p
= fz_transform_point (ctm
, p
);
1886 for (link
= links
; link
; link
= link
->next
) {
1887 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1888 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1896 static void droptext (struct page
*page
)
1899 fz_free_text_span (state
.ctx
, page
->text
);
1902 page
->fmark
.span
= NULL
;
1903 page
->lmark
.span
= NULL
;
1908 static void ensuretext (struct page
*page
)
1910 if (state
.gen
!= page
->gen
) {
1912 page
->gen
= state
.gen
;
1917 page
->text
= fz_new_text_span (state
.ctx
);
1918 tdev
= fz_new_text_device (state
.ctx
, page
->text
);
1919 fz_run_display_list (page
->dlist
,
1922 fz_infinite_bbox
, NULL
);
1923 fz_free_device (tdev
);
1927 static int compareslinks (const void *l
, const void *r
)
1929 struct slink
const *ls
= l
;
1930 struct slink
const *rs
= r
;
1931 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
1932 return rs
->bbox
.x0
- rs
->bbox
.x0
;
1934 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1937 static void ensureslinks (struct page
*page
)
1941 size_t slinksize
= sizeof (*page
->slinks
);
1942 fz_link
*link
, *links
;
1944 if (page
->slinks
) return;
1946 switch (page
->type
) {
1948 links
= page
->u
.pdfpage
->links
;
1949 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
1950 state
.pagedims
[page
->pdimno
].ctm
);
1954 links
= page
->u
.xpspage
->links
;
1955 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
1962 for (link
= links
; link
; link
= link
->next
) {
1966 page
->slinkcount
= count
;
1967 page
->slinks
= calloc (count
, slinksize
);
1968 if (!page
->slinks
) {
1969 err (1, "realloc slinks %d", count
);
1972 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
1973 page
->slinks
[i
].link
= link
;
1974 page
->slinks
[i
].bbox
=
1975 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
1977 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
1981 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
1983 CAMLparam2 (start_page_v
, dir_v
);
1985 int i
, dir
= Int_val (dir_v
);
1986 int start_page
= Int_val (start_page_v
);
1987 int end_page
= dir
> 0 ? state
.pagecount
: -1;
1989 ret_v
= Val_int (0);
1990 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
1994 lock ("ml_findpage_with_links");
1995 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
1998 switch (state
.type
) {
2001 pdf_page
*page
= pdf_load_page (state
.u
.pdf
, i
);
2002 found
= !!page
->links
;
2008 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2009 found
= !!page
->links
;
2015 ARSERT ("invalid document type");
2019 ret_v
= caml_alloc_small (1, 1);
2020 Field (ret_v
, 0) = Val_int (i
);
2025 unlock ("ml_findpage_with_links");
2031 enum { dir_first
, dir_last
};
2032 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2034 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2036 CAMLparam2 (ptr_v
, dir_v
);
2037 CAMLlocal3 (ret_v
, tup_v
, pos_v
);
2039 int dirtag
, i
, slinkindex
;
2040 struct slink
*found
= NULL
,*slink
;
2041 char *s
= String_val (ptr_v
);
2043 page
= parse_pointer ("ml_findlink", s
);
2044 ensureslinks (page
);
2046 ret_v
= Val_int (0);
2047 if (Is_block (dir_v
)) {
2048 dirtag
= Tag_val (dir_v
);
2050 case dir_first_visible
:
2052 int x0
, y0
, dir
, first_index
, last_index
;
2054 pos_v
= Field (dir_v
, 0);
2055 x0
= Int_val (Field (pos_v
, 0));
2056 y0
= Int_val (Field (pos_v
, 1));
2057 dir
= Int_val (Field (pos_v
, 2));
2062 last_index
= page
->slinkcount
;
2065 first_index
= page
->slinkcount
- 1;
2069 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2070 slink
= &page
->slinks
[i
];
2071 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2080 slinkindex
= Int_val (Field (dir_v
, 0));
2081 found
= &page
->slinks
[slinkindex
];
2082 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2083 slink
= &page
->slinks
[i
];
2084 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2092 slinkindex
= Int_val (Field (dir_v
, 0));
2093 found
= &page
->slinks
[slinkindex
];
2094 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2095 slink
= &page
->slinks
[i
];
2096 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2104 slinkindex
= Int_val (Field (dir_v
, 0));
2105 found
= &page
->slinks
[slinkindex
];
2106 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2107 slink
= &page
->slinks
[i
];
2108 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2116 slinkindex
= Int_val (Field (dir_v
, 0));
2117 found
= &page
->slinks
[slinkindex
];
2118 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2119 slink
= &page
->slinks
[i
];
2120 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2129 dirtag
= Int_val (dir_v
);
2132 found
= page
->slinks
;
2137 found
= page
->slinks
+ (page
->slinkcount
- 1);
2143 tup_v
= caml_alloc_tuple (5);
2144 ret_v
= caml_alloc_small (2, 1);
2145 Field (tup_v
, 0) = Val_int (found
- page
->slinks
);
2146 Field (tup_v
, 1) = Val_int (found
->bbox
.x0
);
2147 Field (tup_v
, 2) = Val_int (found
->bbox
.y0
);
2148 Field (tup_v
, 3) = Val_int (found
->bbox
.x1
);
2149 Field (tup_v
, 4) = Val_int (found
->bbox
.y1
);
2150 Field (ret_v
, 0) = tup_v
;
2156 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2162 switch (link->dest.kind) { \
2163 case FZ_LINK_GOTO: \
2167 pageno = link->dest.ld.gotor.page; \
2171 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2172 p.y = link->dest.ld.gotor.lt.y; \
2173 p = fz_transform_point (pdim->lctm, p); \
2175 tup_v = caml_alloc_tuple (2); \
2176 ret_v = caml_alloc_small (1, ugoto); \
2177 Field (tup_v, 0) = Val_int (pageno); \
2178 Field (tup_v, 1) = Val_int (p.y); \
2179 Field (ret_v, 0) = tup_v; \
2184 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2185 ret_v = caml_alloc_small (1, uuri); \
2186 Field (ret_v, 0) = str_v; \
2189 case FZ_LINK_LAUNCH: \
2190 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2191 ret_v = caml_alloc_small (1, ulaunch); \
2192 Field (ret_v, 0) = str_v; \
2195 case FZ_LINK_NAMED: \
2196 str_v = caml_copy_string (link->dest.ld.named.named); \
2197 ret_v = caml_alloc_small (1, unamed); \
2198 Field (ret_v, 0) = str_v; \
2201 case FZ_LINK_GOTOR: \
2202 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2203 pageno = link->dest.ld.gotor.page; \
2204 tup_v = caml_alloc_tuple (2); \
2205 ret_v = caml_alloc_small (1, uremote); \
2206 Field (tup_v, 0) = str_v; \
2207 Field (tup_v, 1) = Val_int (pageno); \
2208 Field (ret_v, 0) = tup_v; \
2215 snprintf (buf, sizeof (buf), \
2216 "unhandled link kind %d", link->dest.kind); \
2217 str_v = caml_copy_string (buf); \
2218 ret_v = caml_alloc_small (1, uunexpected); \
2219 Field (ret_v, 0) = str_v; \
2225 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2227 CAMLparam2 (ptr_v
, n_v
);
2228 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2231 struct pagedim
*pdim
;
2232 char *s
= String_val (ptr_v
);
2234 ret_v
= Val_int (0);
2235 page
= parse_pointer ("ml_getlink", s
);
2236 pdim
= &state
.pagedims
[page
->pdimno
];
2237 link
= page
->slinks
[Int_val (n_v
)].link
;
2242 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2244 CAMLparam3 (ptr_v
, x_v
, y_v
);
2245 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2248 char *s
= String_val (ptr_v
);
2249 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2250 struct pagedim
*pdim
;
2252 ret_v
= Val_int (0);
2253 if (trylock ("ml_whatsunder")) {
2257 page
= parse_pointer ("ml_whatsunder", s
);
2258 pdim
= &state
.pagedims
[page
->pdimno
];
2259 x
+= pdim
->bounds
.x0
;
2260 y
+= pdim
->bounds
.y0
;
2261 link
= getlink (page
, x
, y
);
2270 for (span
= page
->text
; span
; span
= span
->next
) {
2271 for (i
= 0; i
< span
->len
; ++i
) {
2273 b
= &span
->text
[i
].bbox
;
2274 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
2276 span
->font
&& span
->font
->name
2278 : "Span has no font name"
2280 FT_FaceRec
*face
= span
->font
->ft_face
;
2281 if (face
&& face
->family_name
) {
2283 char *n1
= face
->family_name
;
2284 size_t l1
= strlen (n1
);
2285 size_t l2
= strlen (n2
);
2287 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2288 s
= malloc (l1
+ l2
+ 2);
2292 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2293 str_v
= caml_copy_string (s
);
2299 str_v
= caml_copy_string (n2
);
2301 ret_v
= caml_alloc_small (1, utext
);
2302 Field (ret_v
, 0) = str_v
;
2309 unlock ("ml_whatsunder");
2315 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2317 CAMLparam2 (ptr_v
, rect_v
);
2321 struct mark first
, last
;
2322 struct pagedim
*pdim
;
2323 int i
, x0
, x1
, y0
, y1
;
2324 char *s
= String_val (ptr_v
);
2326 if (trylock ("ml_seltext")) {
2330 page
= parse_pointer ("ml_seltext", s
);
2333 pdim
= &state
.pagedims
[page
->pdimno
];
2334 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2335 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2336 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2337 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2340 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2341 glColor3ub (128, 128, 128);
2342 glRecti (x0
, y0
, x1
, y1
);
2343 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2349 last
.i
= first
.i
= 0;
2350 first
.span
= page
->text
;
2351 for (span
= page
->text
; span
; span
= span
->next
) {
2352 for (i
= 0; i
< span
->len
; ++i
) {
2353 b
= &span
->text
[i
].bbox
;
2356 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
2361 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
2366 if (0 && selected
) {
2367 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2368 glColor3ub (128, 128, 128);
2369 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2370 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2375 if (y1
< y0
|| x1
< x0
) {
2378 if (first
.span
== last
.span
) {
2383 for (span
= first
.span
; span
&& span
!= last
.span
;
2384 span
= span
->next
) {
2397 first
.span
= last
.span
;
2403 page
->fmark
= first
;
2406 unlock ("ml_seltext");
2409 CAMLreturn (Val_unit
);
2412 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2417 for (i
= a
; i
<= b
; ++i
) {
2418 len
= runetochar (buf
, &span
->text
[i
].c
);
2419 ret
= fwrite (buf
, len
, 1, f
);
2422 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2423 len
, ret
, strerror (errno
));
2430 CAMLprim value
ml_copysel (value command_v
, value ptr_v
)
2436 char *s
= String_val (ptr_v
);
2437 char *command
= String_val (command_v
);
2439 if (trylock ("ml_copysel")) {
2443 page
= parse_pointer ("ml_sopysel", s
);
2445 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
2446 fprintf (stderr
, "nothing to copy\n");
2450 f
= popen (command
, "w");
2452 fprintf (stderr
, "failed to open sel pipe: %s\n",
2457 for (span
= page
->fmark
.span
;
2458 span
&& span
!= page
->lmark
.span
->next
;
2459 span
= span
->next
) {
2460 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
2461 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
2462 if (pipespan (f
, span
, a
, b
)) {
2466 if (putc ('\n', f
) == EOF
) {
2467 fprintf (stderr
, "failed break line on sel pipe: %s\n",
2473 page
->lmark
.span
= NULL
;
2474 page
->fmark
.span
= NULL
;
2478 int ret
= pclose (f
);
2480 if (errno
!= ECHILD
) {
2481 fprintf (stderr
, "failed to close sel pipe: %s\n",
2487 unlock ("ml_copysel");
2490 CAMLreturn (Val_unit
);
2493 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
2495 CAMLparam1 (pagedimno_v
);
2497 int pagedimno
= Int_val (pagedimno_v
);
2500 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
2501 if (trylock ("ml_getpdimrect")) {
2502 box
= fz_empty_rect
;
2505 box
= state
.pagedims
[pagedimno
].mediabox
;
2506 unlock ("ml_getpdimrect");
2509 Store_double_field (ret_v
, 0, box
.x0
);
2510 Store_double_field (ret_v
, 1, box
.x1
);
2511 Store_double_field (ret_v
, 2, box
.y0
);
2512 Store_double_field (ret_v
, 3, box
.y1
);
2517 static double getmaxw (void)
2523 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2526 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2527 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2530 maxw
= MAX (w
, maxw
);
2535 CAMLprim value
ml_getmaxw (value unit_v
)
2537 CAMLparam1 (unit_v
);
2541 if (trylock ("ml_getmaxw")) {
2545 unlock ("ml_getmaxw");
2547 ret_v
= caml_copy_double (maxw
);
2551 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
2553 CAMLparam3 (winw_v
, winh_v
, dw_v
);
2557 double maxw
= 0.0, maxh
= 0.0;
2559 double winw
= Int_val (winw_v
);
2560 double winh
= Int_val (winh_v
);
2561 double dw
= Int_val (dw_v
);
2562 double pw
= 1.0, ph
= 1.0, num
, den
;
2564 if (trylock ("ml_zoom_for_height")) {
2568 if (state
.proportional
) {
2572 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2573 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
2575 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2576 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2577 y0
= MIN (p
->mediabox
.y0
, p
->mediabox
.y1
);
2578 y1
= MAX (p
->mediabox
.y0
, p
->mediabox
.y1
);
2583 if (state
.proportional
) {
2585 scaledh
= h
* scale
;
2592 if (scaledh
> maxh
) {
2599 num
= (winh
* pw
) + (ph
* dw
);
2603 unlock ("ml_zoom_for_height");
2605 ret_v
= caml_copy_double (zoom
);
2611 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
2613 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
2615 int pt
= Int_val(pt_v
);
2616 int x
= Int_val (x_v
);
2617 int y
= Int_val (y_v
);
2620 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
2621 ret_v
= caml_copy_double (w
);
2625 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
2627 CAMLparam2 (pt_v
, string_v
);
2629 int pt
= Int_val (pt_v
);
2632 w
= measure_string (state
.face
, pt
, String_val (string_v
));
2633 ret_v
= caml_copy_double (w
);
2637 CAMLprim value
ml_getpagebox (value opaque_v
)
2639 CAMLparam1 (opaque_v
);
2643 char *s
= String_val (opaque_v
);
2644 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
2646 ret_v
= caml_alloc_tuple (4);
2647 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
2648 dev
->hints
|= FZ_IGNORE_SHADE
;
2650 switch (page
->type
) {
2652 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
2656 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
2660 bbox
= fz_infinite_bbox
;
2664 fz_free_device (dev
);
2665 Field (ret_v
, 0) = Val_int (bbox
.x0
);
2666 Field (ret_v
, 1) = Val_int (bbox
.y0
);
2667 Field (ret_v
, 2) = Val_int (bbox
.x1
);
2668 Field (ret_v
, 3) = Val_int (bbox
.y1
);
2673 CAMLprim value
ml_setaalevel (value level_v
)
2675 CAMLparam1 (level_v
);
2677 state
.aalevel
= Int_val (level_v
);
2678 CAMLreturn (Val_unit
);
2682 #include <X11/Xlib.h>
2688 GLXDrawable drawable
;
2691 #include "keysym2ucs.c"
2693 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
2695 CAMLparam1 (keysym_v
);
2697 KeySym keysym
= Int_val (keysym_v
);
2702 rune
= keysym2ucs (keysym
);
2703 len
= runetochar (buf
, &rune
);
2705 str_v
= caml_copy_string (buf
);
2709 CAMLprim value
ml_glx (value win_v
)
2713 XVisualInfo
*visual
;
2714 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
2716 glx
.dpy
= XOpenDisplay (NULL
);
2718 caml_failwith ("XOpenDisplay failed");
2721 screen
= DefaultScreen (glx
.dpy
);
2722 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
2724 XCloseDisplay (glx
.dpy
);
2726 caml_failwith ("glXChooseVisual");
2729 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
2731 XCloseDisplay (glx
.dpy
);
2734 caml_failwith ("glXCreateContext");
2738 if (!glXMakeCurrent (glx
.dpy
, Int_val (win_v
), glx
.ctx
)) {
2739 glXDestroyContext (glx
.dpy
, glx
.ctx
);
2740 XCloseDisplay (glx
.dpy
);
2743 caml_failwith ("glXMakeCurrent");
2745 glx
.drawable
= Int_val (win_v
);
2747 CAMLreturn (Val_unit
);
2750 CAMLprim value
ml_swapb (value unit_v
)
2752 CAMLparam1 (unit_v
);
2753 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
2754 CAMLreturn (Val_unit
);
2757 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
2758 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
2760 CAMLprim value
ml_platform (value unit_v
)
2762 CAMLparam1 (unit_v
);
2763 int platid
= piunknown
;
2765 #if defined __linux__
2767 #elif defined __CYGWIN__
2769 #elif defined __DragonFly__
2770 platid
= pidragonflybsd
;
2771 #elif defined __FreeBSD__
2773 #elif defined __OpenBSD__
2775 #elif defined __NetBSD__
2777 #elif defined __sun__
2779 #elif defined __APPLE__
2782 CAMLreturn (Val_int (platid
));
2785 CAMLprim value
ml_cloexec (value fd_v
)
2788 int fd
= Int_val (fd_v
);
2790 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
2791 uerror ("fcntl", Nothing
);
2793 CAMLreturn (Val_unit
);
2796 CAMLprim value
ml_init (value pipe_v
, value params_v
)
2798 CAMLparam2 (pipe_v
, params_v
);
2799 CAMLlocal2 (trim_v
, fuzz_v
);
2805 struct sigaction sa
;
2807 state
.cr
= Int_val (Field (pipe_v
, 0));
2808 state
.cw
= Int_val (Field (pipe_v
, 1));
2809 state
.rotate
= Int_val (Field (params_v
, 0));
2810 state
.proportional
= Bool_val (Field (params_v
, 1));
2811 trim_v
= Field (params_v
, 2);
2812 texcount
= Int_val (Field (params_v
, 3));
2813 state
.sliceheight
= Int_val (Field (params_v
, 4));
2814 mustoresize
= Int_val (Field (params_v
, 5));
2815 colorspace
= Int_val (Field (params_v
, 6));
2816 fontpath
= String_val (Field (params_v
, 7));
2818 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
2820 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
2821 fuzz_v
= Field (trim_v
, 1);
2822 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
2823 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
2824 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
2825 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
2827 set_tex_params (colorspace
);
2830 state
.face
= load_font (fontpath
);
2834 void *base
= pdf_find_substitute_font (0, 0, 0, 0, &len
);
2836 state
.face
= load_builtin_font (base
, len
);
2838 if (!state
.face
) _exit (1);
2840 realloctexts (texcount
);
2842 sa
.sa_handler
= SIG_DFL
;
2843 if (sigemptyset (&sa
.sa_mask
)) {
2844 err (1, "sigemptyset");
2846 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
2847 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
2848 err (1, "sigaction");
2851 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
2853 errx (1, "pthread_create: %s", strerror (ret
));
2856 CAMLreturn (Val_unit
);