1 /* lots of code c&p-ed directly from mupdf */
12 #include <sys/types.h>
13 #include <sys/ioctl.h>
16 #include <cygwin/socket.h> /* FIONREAD */
28 #include <caml/fail.h>
29 #include <caml/alloc.h>
30 #include <caml/memory.h>
31 #include <caml/unixsupport.h>
35 #include <mupdf-internal.h>
37 #include <muxps-internal.h>
40 #include FT_FREETYPE_H
45 extern char **environ
;
49 #define NORETURN __attribute__ ((noreturn))
50 #define UNUSED __attribute__ ((unused))
51 #define OPTIMIZE(n) __attribute__ ((optimize ("O"#n)))
52 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
57 #define GCC_FMT_ATTR(a, b)
63 #define FMT_ptr_cast(p) (p)
64 #define FMT_ptr_cast2(p) (p)
66 static void NORETURN
GCC_FMT_ATTR (2, 3)
67 err (int exitcode
, const char *fmt
, ...)
74 vfprintf (stderr
, fmt
, ap
);
76 fprintf (stderr
, ": %s\n", strerror (savederrno
));
81 static void NORETURN
GCC_FMT_ATTR (2, 3)
82 errx (int exitcode
, const char *fmt
, ...)
87 vfprintf (stderr
, fmt
, ap
);
94 #ifndef GL_TEXTURE_RECTANGLE_ARB
95 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
99 #define GL_BGRA 0x80E1
102 #ifndef GL_UNSIGNED_INT_8_8_8_8
103 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
106 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
107 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
111 #define lprintf printf
116 #define ARSERT(cond) for (;;) { \
118 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
133 struct slice slices
[1];
144 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
152 enum { DPDF
, DXPS
, DCBZ
};
161 fz_text_sheet
*sheet
;
168 fz_display_list
*dlist
;
170 struct slink
*slinks
;
175 void (*freepage
) (void *);
181 struct pagedim
*pagedims
;
200 fz_colorspace
*colorspace
;
222 void (*closedoc
) (void);
223 void (*freepage
) (void *);
226 static void UNUSED
debug_rect (const char *cap
, fz_rect r
)
228 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
231 static void UNUSED
debug_bbox (const char *cap
, fz_bbox r
)
233 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
236 static void UNUSED
debug_matrix (const char *cap
, fz_matrix m
)
238 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
239 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
242 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
244 static void lock (const char *cap
)
246 int ret
= pthread_mutex_lock (&mutex
);
248 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
252 static void unlock (const char *cap
)
254 int ret
= pthread_mutex_unlock (&mutex
);
256 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
260 static int trylock (const char *cap
)
262 int ret
= pthread_mutex_trylock (&mutex
);
264 if (ret
&& ret
!= EBUSY
) {
265 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
270 static void *parse_pointer (const char *cap
, const char *s
)
275 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
277 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
282 static double now (void)
286 if (gettimeofday (&tv
, NULL
)) {
287 err (1, "gettimeofday");
289 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
292 static int hasdata (void)
295 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
296 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
300 CAMLprim value
ml_hasdata (value fd_v
)
305 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
306 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
307 CAMLreturn (Val_bool (avail
> 0));
310 static void readdata (void *p
, int size
)
314 n
= read (state
.cr
, p
, size
);
316 if (!n
) errx (1, "EOF while reading");
317 err (1, "read (req %d, ret %zd)", size
, n
);
321 static void writedata (char *p
, int size
)
326 buf
[0] = (size
>> 24) & 0xff;
327 buf
[1] = (size
>> 16) & 0xff;
328 buf
[2] = (size
>> 8) & 0xff;
329 buf
[3] = (size
>> 0) & 0xff;
331 n
= write (state
.cw
, buf
, 4);
333 if (!n
) errx (1, "EOF while writing length");
334 err (1, "write %zd", n
);
337 n
= write (state
.cw
, p
, size
);
339 if (!n
) errx (1, "EOF while writing data");
340 err (1, "write (req %d, ret %zd)", size
, n
);
344 static int readlen (void)
349 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
352 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
360 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
363 len
= vsnprintf (buf
, size
, fmt
, ap
);
366 if (len
> -1 && len
< size
) {
367 writedata (buf
, len
);
377 buf
= realloc (buf
, size
);
382 static void closepdf (void)
385 pdf_close_document (state
.u
.pdf
);
390 static void closexps (void)
393 xps_close_document (state
.u
.xps
);
398 static void closecbz (void)
401 cbz_close_document (state
.u
.cbz
);
406 static void freepdfpage (void *ptr
)
408 pdf_free_page (state
.u
.pdf
, ptr
);
411 static void freexpspage (void *ptr
)
413 xps_free_page (state
.u
.xps
, ptr
);
416 static void freecbzpage (void *ptr
)
418 cbz_free_page (state
.u
.cbz
, ptr
);
421 static void openxref (char *filename
, char *password
)
425 for (i
= 0; i
< state
.texcount
; ++i
) {
426 state
.texowners
[i
].w
= -1;
427 state
.texowners
[i
].slice
= NULL
;
430 if (state
.closedoc
) state
.closedoc ();
432 len
= strlen (filename
);
438 ext
[0] = tolower ((int) filename
[len
-3]);
439 ext
[1] = tolower ((int) filename
[len
-2]);
440 ext
[2] = tolower ((int) filename
[len
-1]);
442 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
445 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
450 if (state
.pagedims
) {
451 free (state
.pagedims
);
452 state
.pagedims
= NULL
;
454 state
.pagedimcount
= 0;
456 fz_set_aa_level (state
.ctx
, state
.aalevel
);
457 switch (state
.type
) {
459 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
460 if (pdf_needs_password (state
.u
.pdf
)) {
461 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
463 errx (1, "invalid password");
466 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
467 state
.closedoc
= closepdf
;
468 state
.freepage
= freepdfpage
;
472 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
473 state
.pagecount
= xps_count_pages (state
.u
.xps
);
474 state
.closedoc
= closexps
;
475 state
.freepage
= freexpspage
;
479 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
480 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
481 state
.closedoc
= closecbz
;
482 state
.freepage
= freecbzpage
;
487 static void pdfinfo (void)
489 if (state
.type
== DPDF
) {
492 printd ("info PDF version\t%d.%d",
493 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
495 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
499 char *items
[] = { "Title", "Author", "Creator",
500 "Producer", "CreationDate" };
502 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
503 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
504 s
= pdf_to_utf8 (state
.ctx
, obj
);
507 printd ("title %s", s
);
509 printd ("info %s\t%s", items
[i
], s
);
511 fz_free (state
.ctx
, s
);
518 static void unlinktile (struct tile
*tile
)
522 for (i
= 0; i
< tile
->slicecount
; ++i
) {
523 struct slice
*s
= &tile
->slices
[i
];
525 if (s
->texindex
!= -1) {
526 if (state
.texowners
[s
->texindex
].slice
== s
) {
527 state
.texowners
[s
->texindex
].slice
= NULL
;
533 static void freepage (struct page
*page
)
536 fz_free_text_page (state
.ctx
, page
->text
);
539 fz_free_text_sheet (state
.ctx
, page
->sheet
);
544 page
->freepage (page
->u
.ptr
);
545 fz_free_display_list (state
.ctx
, page
->dlist
);
549 static void freetile (struct tile
*tile
)
553 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
556 fz_drop_pixmap (state
.ctx
, state
.pig
);
558 state
.pig
= tile
->pixmap
;
566 static int cacheline32bytes
;
567 extern char **environ
;
569 static void __attribute__ ((constructor
)) clcheck (void)
571 char **envp
= environ
;
576 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
578 cacheline32bytes
= auxv
[1] == 32;
584 static void OPTIMIZE (3) clearpixmap (fz_pixmap
*pixmap
)
586 if (cacheline32bytes
) {
587 intptr_t a1
, a2
, diff
;
588 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
589 vector
unsigned char v
= vec_splat_u8 (-1);
590 vector
unsigned char *p
;
592 a1
= a2
= (intptr_t) pixmap
->samples
;
593 a2
= (a1
+ 31) & ~31;
598 while (a1
!= a2
) *(char *) a1
++ = 0xff;
599 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
600 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
602 vec_st (v
, i
+ 16, p
);
604 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
606 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
609 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
612 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
615 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
617 if (!pdim
->tctmready
) {
618 if (state
.trimmargins
) {
621 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
622 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
623 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
624 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
635 static fz_matrix
pagectm (struct page
*page
)
637 if (page
->type
== DPDF
) {
638 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
639 state
.pagedims
[page
->pdimno
].ctm
);
643 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
645 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
646 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
647 -pdim
->mediabox
.y0
), ctm
);
652 static void *loadpage (int pageno
, int pindex
)
655 struct page
*page
= NULL
;
657 page
= calloc (sizeof (struct page
), 1);
659 err (1, "calloc page %d", pageno
);
662 page
->dlist
= fz_new_display_list (state
.ctx
);
663 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
664 switch (state
.type
) {
666 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
667 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
668 page
->freepage
= freepdfpage
;
672 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
673 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
674 page
->freepage
= freexpspage
;
678 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
679 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
680 page
->freepage
= freecbzpage
;
683 fz_free_device (dev
);
685 page
->pdimno
= pindex
;
686 page
->pageno
= pageno
;
687 page
->sgen
= state
.gen
;
688 page
->tgen
= state
.gen
;
689 page
->type
= state
.type
;
694 static struct tile
*alloctile (int h
)
701 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
702 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
703 tile
= calloc (tilesize
, 1);
705 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
707 for (i
= 0; i
< slicecount
; ++i
) {
708 int sh
= MIN (h
, state
.sliceheight
);
709 tile
->slices
[i
].h
= sh
;
710 tile
->slices
[i
].texindex
= -1;
713 tile
->slicecount
= slicecount
;
714 tile
->sliceheight
= state
.sliceheight
;
723 static void obs_fill_image (fz_device
*dev
, fz_image
*image
, fz_matrix ctm
,
726 struct obs
*obs
= dev
->user
;
728 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
729 fz_bbox b
= fz_round_rect (fz_transform_rect (ctm
, fz_unit_rect
));
730 b
= fz_intersect_bbox (b
, obs
->b
);
731 obs
->cured
= b
.x0
== obs
->b
.x0
734 && b
.y1
== obs
->b
.y1
;
738 static int obscured (struct page
*page
, fz_bbox bbox
)
743 memset (&dev
, 0, sizeof (dev
));
744 memset (&obs
, 0, sizeof (obs
));
748 dev
.fill_image
= obs_fill_image
;
750 fz_run_display_list (page
->dlist
, &dev
, pagectm (page
), bbox
, NULL
);
754 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
)
759 struct pagedim
*pdim
;
761 tile
= alloctile (h
);
762 pdim
= &state
.pagedims
[page
->pdimno
];
767 bbox
.x1
= bbox
.x0
+ w
;
768 bbox
.y1
= bbox
.y0
+ h
;
771 if (state
.pig
->w
== w
773 && state
.pig
->colorspace
== state
.colorspace
) {
774 tile
->pixmap
= state
.pig
;
775 tile
->pixmap
->x
= bbox
.x0
;
776 tile
->pixmap
->y
= bbox
.y0
;
779 fz_drop_pixmap (state
.ctx
, state
.pig
);
785 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, bbox
);
790 if ((w
< 128 && h
< 128) || !obscured (page
, bbox
)) {
791 clearpixmap (tile
->pixmap
);
793 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
794 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
795 fz_free_device (dev
);
800 static void initpdims (void)
806 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
811 switch (state
.type
) {
813 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
815 if (state
.trimmargins
) {
819 page
= pdf_load_page (state
.u
.pdf
, pageno
);
820 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
821 if (state
.trimanew
|| !obj
) {
827 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
828 dev
->hints
|= FZ_IGNORE_SHADE
;
829 ctm
= fz_invert_matrix (page
->ctm
);
830 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
831 fz_free_device (dev
);
833 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
834 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
835 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
836 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
837 rect
= fz_transform_rect (ctm
, rect
);
838 rect
= fz_intersect_rect (rect
, page
->mediabox
);
840 if (fz_is_empty_rect (rect
)) {
841 mediabox
= page
->mediabox
;
847 obj
= pdf_new_array (state
.ctx
, 4);
848 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
849 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
850 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
851 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
852 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
855 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
856 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
857 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
858 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
861 rotate
= page
->rotate
;
862 pdf_free_page (state
.u
.pdf
, page
);
864 printd ("progress %f Trimming %d",
865 (double) (pageno
+ 1) / state
.pagecount
,
871 mediabox
= pdf_to_rect (state
.ctx
,
872 pdf_dict_gets (pageobj
, "MediaBox"));
873 if (fz_is_empty_rect (mediabox
)) {
874 fprintf (stderr
, "cannot find page size for page %d\n",
882 cropbox
= pdf_to_rect (state
.ctx
,
883 pdf_dict_gets (pageobj
, "CropBox"));
884 if (!fz_is_empty_rect (cropbox
)) {
885 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
887 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
896 page
= xps_load_page (state
.u
.xps
, pageno
);
897 mediabox
= xps_bound_page (state
.u
.xps
, page
);
899 if (state
.trimmargins
) {
904 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
905 dev
->hints
|= FZ_IGNORE_SHADE
;
906 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
907 fz_free_device (dev
);
909 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
910 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
911 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
912 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
913 rect
= fz_intersect_rect (rect
, mediabox
);
915 if (!fz_is_empty_rect (rect
)) {
919 xps_free_page (state
.u
.xps
, page
);
920 printd ("progress %f loading %d",
921 (double) (pageno
+ 1) / state
.pagecount
,
929 if (state
.trimmargins
) {
932 page
= cbz_load_page (state
.u
.cbz
, pageno
);
933 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
934 cbz_free_page (state
.u
.cbz
, page
);
935 printd ("progress %f Trimming %d",
936 (double) (pageno
+ 1) / state
.pagecount
,
940 mediabox
.x0
= mediabox
.y0
= 0;
948 ARSERT (0 && state
.type
);
951 if (state
.pagedimcount
== 0
952 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
953 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
956 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
957 state
.pagedims
= realloc (state
.pagedims
, size
);
958 if (!state
.pagedims
) {
959 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
960 size
, state
.pagedimcount
+ 1);
963 p
= &state
.pagedims
[state
.pagedimcount
++];
965 p
->mediabox
= mediabox
;
970 if (state
.trimmargins
) {
971 printd ("progress 1 Trimmed %d pages in %f seconds",
972 state
.pagecount
, end
- start
);
975 printd ("vmsg Processed %d pages in %f seconds",
976 state
.pagecount
, end
- start
);
981 static void layout (void)
986 double zoom
, w
, maxw
= 0;
987 struct pagedim
*p
= state
.pagedims
;
989 if (state
.proportional
) {
990 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
991 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
994 maxw
= MAX (w
, maxw
);
999 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1002 ctm
= fz_rotate (state
.rotate
);
1003 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1005 w
= box
.x1
- box
.x0
;
1007 if (state
.proportional
) {
1008 double scale
= w
/ maxw
;
1009 zoom
= (state
.w
/ w
) * scale
;
1015 p
->zoomctm
= fz_scale (zoom
, zoom
);
1016 ctm
= fz_concat (p
->zoomctm
, ctm
);
1018 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
1019 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1020 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1023 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
1026 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
1030 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
1031 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
1032 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
1038 while (p
-- != state
.pagedims
) {
1039 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1040 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1041 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1042 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1046 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1050 static void recurse_outline (fz_outline
*outline
, int level
)
1055 struct pagedim
*pdim
= state
.pagedims
;
1057 dest
= &outline
->dest
;
1058 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1059 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1061 pdim
= &state
.pagedims
[i
];
1063 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1066 p
.y
= dest
->ld
.gotor
.lt
.y
;
1067 p
= fz_transform_point (pdim
->lctm
, p
);
1070 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1074 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1075 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1077 printd ("o %d %d %d %d %s",
1078 level
, dest
->ld
.gotor
.page
, top
, h
, outline
->title
);
1080 if (outline
->down
) {
1081 recurse_outline (outline
->down
, level
+ 1);
1083 outline
= outline
->next
;
1087 static void process_outline (void)
1089 fz_outline
*outline
;
1091 if (!state
.needoutline
) return;
1093 state
.needoutline
= 0;
1094 switch (state
.type
) {
1096 outline
= pdf_load_outline (state
.u
.pdf
);
1099 outline
= xps_load_outline (state
.u
.xps
);
1106 recurse_outline (outline
, 0);
1107 fz_free_outline (state
.ctx
, outline
);
1111 static char *strofspan (fz_text_span
*span
)
1116 size_t size
= 0, cap
= 80;
1118 p
= malloc (cap
+ 1);
1119 if (!p
) return NULL
;
1121 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1122 int n
= fz_runetochar (utf8
, ch
->c
);
1123 if (size
+ n
> cap
) {
1125 p
= realloc (p
, cap
+ 1);
1126 if (!p
) return NULL
;
1129 memcpy (p
+ size
, utf8
, n
);
1136 static int matchspan (regex_t
*re
, fz_text_span
*span
, fz_matrix ctm
,
1137 int stop
, int pageno
, double start
)
1144 fz_point p1
, p2
, p3
, p4
;
1146 p
= strofspan (span
);
1149 ret
= regexec (re
, p
, 1, &rm
, 0);
1152 if (ret
!= REG_NOMATCH
) {
1155 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1156 printd ("msg regexec error `%.*s'",
1157 (int) size
, errbuf
);
1164 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1165 c
+= fz_runelen (span
->text
[a
].c
);
1167 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1168 c
+= fz_runelen (span
->text
[b
].c
);
1171 if (fz_runelen (span
->text
[b
].c
) > 1) {
1174 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1175 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1187 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1194 printd ("progress 1 found at %d `%.*s' in %f sec",
1195 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1199 printd ("match %d %d %f %f %f %f %f %f %f %f",
1211 static int compareblocks (const void *l
, const void *r
)
1213 fz_text_block
const *ls
= l
;
1214 fz_text_block
const* rs
= r
;
1215 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1218 /* wishful thinking function */
1219 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1224 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1226 fz_text_sheet
*sheet
;
1227 struct pagedim
*pdim
, *pdimprev
;
1228 int stop
= 0, niters
= 0;
1231 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1235 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1236 if (niters
++ == 5) {
1239 printd ("progress 1 attention requested aborting search at %d",
1244 printd ("progress %f searching in page %d",
1245 (double) (pageno
+ 1) / state
.pagecount
,
1250 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1251 pdim
= &state
.pagedims
[i
];
1252 if (pdim
->pageno
== pageno
) {
1255 if (pdim
->pageno
> pageno
) {
1264 sheet
= fz_new_text_sheet (state
.ctx
);
1265 text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
1266 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1268 switch (state
.type
) {
1270 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1271 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1272 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1273 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, ctm
, NULL
);
1277 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1279 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, ctm
, NULL
);
1283 ARSERT (0 && state
.type
);
1286 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1287 fz_free_device (tdev
);
1289 for (j
= 0; j
< text
->len
; ++j
) {
1291 fz_text_block
*block
;
1293 block
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1295 for (k
= 0; k
< block
->len
; ++k
) {
1300 line
= &block
->lines
[k
];
1301 if (line
->bbox
.y0
< y
+ 1) continue;
1304 line
= &block
->lines
[block
->len
- 1 - k
];
1305 if (line
->bbox
.y0
> y
- 1) continue;
1308 for (span
= line
->spans
;
1309 span
< line
->spans
+ line
->len
;
1312 switch (matchspan (re
, span
, ctm
, stop
, pageno
, start
)) {
1314 case 1: stop
= 1; break;
1315 case -1: stop
= 1; goto endloop
;
1329 fz_free_text_page (state
.ctx
, text
);
1330 fz_free_text_sheet (state
.ctx
, sheet
);
1331 state
.freepage (u
.ptr
);
1335 printd ("progress 1 no matches %f sec", end
- start
);
1337 printd ("clearrects");
1340 static void set_tex_params (int colorspace
)
1347 endianness
.b
[0] = 1;
1349 switch (colorspace
) {
1351 state
.texiform
= GL_RGBA8
;
1352 state
.texform
= GL_RGBA
;
1353 state
.texty
= GL_UNSIGNED_BYTE
;
1354 state
.colorspace
= fz_device_rgb
;
1357 state
.texiform
= GL_RGBA8
;
1358 state
.texform
= GL_BGRA
;
1359 state
.texty
= endianness
.s
> 0xff
1360 ? GL_UNSIGNED_INT_8_8_8_8
1361 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1362 state
.colorspace
= fz_device_bgr
;
1365 state
.texiform
= GL_LUMINANCE_ALPHA
;
1366 state
.texform
= GL_LUMINANCE_ALPHA
;
1367 state
.texty
= GL_UNSIGNED_BYTE
;
1368 state
.colorspace
= fz_device_gray
;
1371 errx (1, "invalid colorspce %d", colorspace
);
1375 static void realloctexts (int texcount
)
1379 if (texcount
== state
.texcount
) return;
1381 if (texcount
< state
.texcount
) {
1382 glDeleteTextures (state
.texcount
- texcount
,
1383 state
.texids
+ texcount
);
1386 size
= texcount
* sizeof (*state
.texids
);
1387 state
.texids
= realloc (state
.texids
, size
);
1388 if (!state
.texids
) {
1389 err (1, "realloc texids %" FMT_s
, size
);
1392 size
= texcount
* sizeof (*state
.texowners
);
1393 state
.texowners
= realloc (state
.texowners
, size
);
1394 if (!state
.texowners
) {
1395 err (1, "realloc texowners %" FMT_s
, size
);
1397 if (texcount
> state
.texcount
) {
1400 glGenTextures (texcount
- state
.texcount
,
1401 state
.texids
+ state
.texcount
);
1402 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1403 state
.texowners
[i
].w
= -1;
1404 state
.texowners
[i
].slice
= NULL
;
1407 state
.texcount
= texcount
;
1411 static void * mainloop (void *unused
)
1414 int len
, ret
, oldlen
= 0;
1419 errx (1, "readlen returned 0");
1422 if (oldlen
< len
+ 1) {
1423 p
= realloc (p
, len
+ 1);
1425 err (1, "realloc %d failed", len
+ 1);
1432 if (!strncmp ("open", p
, 4)) {
1435 char *filename
= p
+ 5;
1437 filenamelen
= strlen (filename
);
1438 password
= filename
+ filenamelen
+ 1;
1440 openxref (filename
, password
);
1443 printd ("msg Opened %s (press h/F1 to get help)", filename
);
1444 state
.needoutline
= 1;
1446 else if (!strncmp ("cs", p
, 2)) {
1449 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1451 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1454 set_tex_params (colorspace
);
1455 for (i
= 0; i
< state
.texcount
; ++i
) {
1456 state
.texowners
[i
].w
= -1;
1457 state
.texowners
[i
].slice
= NULL
;
1461 else if (!strncmp ("freepage", p
, 8)) {
1464 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1466 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1470 else if (!strncmp ("freetile", p
, 8)) {
1473 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1475 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1479 else if (!strncmp ("search", p
, 6)) {
1480 int icase
, pageno
, y
, ret
, len2
, forward
;
1484 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1485 &icase
, &pageno
, &y
, &forward
, &len2
);
1487 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1490 pattern
= p
+ 6 + len2
;
1491 ret
= regcomp (&re
, pattern
,
1492 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1497 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1498 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1501 search (&re
, pageno
, y
, forward
);
1505 else if (!strncmp ("geometry", p
, 8)) {
1509 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1511 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1519 for (i
= 0; i
< state
.texcount
; ++i
) {
1520 state
.texowners
[i
].slice
= NULL
;
1526 unlock ("geometry");
1527 printd ("continue %d", state
.pagecount
);
1529 else if (!strncmp ("reqlayout", p
, 9)) {
1530 int rotate
, proportional
;
1533 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1535 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1538 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1541 state
.rotate
= rotate
;
1542 state
.proportional
= proportional
;
1546 unlock ("reqlayout");
1547 printd ("continue %d", state
.pagecount
);
1549 else if (!strncmp ("page", p
, 4)) {
1552 int pageno
, pindex
, ret
;
1554 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1556 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1561 page
= loadpage (pageno
, pindex
);
1565 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1567 else if (!strncmp ("tile", p
, 4)) {
1568 int x
, y
, w
, h
, ret
;
1573 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d",
1574 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
);
1576 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1581 tile
= rendertile (page
, x
, y
, w
, h
);
1585 printd ("tile %d %d %" FMT_ptr
" %u %f",
1587 FMT_ptr_cast2 (tile
),
1588 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1591 else if (!strncmp ("settrim", p
, 7)) {
1595 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1596 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1598 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1602 state
.trimmargins
= trimmargins
;
1603 state
.needoutline
= 1;
1604 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1606 state
.trimfuzz
= fuzz
;
1608 state
.pagedimcount
= 0;
1609 free (state
.pagedims
);
1610 state
.pagedims
= NULL
;
1615 printd ("continue %d", state
.pagecount
);
1617 else if (!strncmp ("sliceh", p
, 6)) {
1620 ret
= sscanf (p
+ 6, " %d", &h
);
1622 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1624 if (h
!= state
.sliceheight
) {
1627 state
.sliceheight
= h
;
1628 for (i
= 0; i
< state
.texcount
; ++i
) {
1629 state
.texowners
[i
].w
= -1;
1630 state
.texowners
[i
].h
= -1;
1631 state
.texowners
[i
].slice
= NULL
;
1635 else if (!strncmp ("interrupt", p
, 9)) {
1636 printd ("vmsg interrupted");
1639 errx (1, "unknown command %.*s", len
, p
);
1645 CAMLprim value
ml_realloctexts (value texcount_v
)
1647 CAMLparam1 (texcount_v
);
1650 if (trylock ("ml_realloctexts")) {
1654 realloctexts (Int_val (texcount_v
));
1656 unlock ("ml_realloctexts");
1659 CAMLreturn (Val_bool (ok
));
1662 static void showsel (struct page
*page
, int ox
, int oy
)
1668 fz_text_block
*block
;
1669 struct mark first
, last
;
1671 first
= page
->fmark
;
1674 if (!first
.span
|| !last
.span
) return;
1676 glEnable (GL_BLEND
);
1677 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1678 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1680 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1681 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1682 for (block
= page
->text
->blocks
;
1683 block
< page
->text
->blocks
+ page
->text
->len
;
1685 for (line
= block
->lines
;
1686 line
< block
->lines
+ block
->len
;
1688 for (span
= line
->spans
;
1689 span
< line
->spans
+ line
->len
;
1693 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1698 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1700 j
= MIN (first
.i
, last
.i
);
1701 k
= MAX (first
.i
, last
.i
);
1703 else if (span
== first
.span
) {
1707 else if (span
== last
.span
) {
1713 for (i
= j
; i
<= k
; ++i
) {
1714 fz_bbox b
= fz_round_rect (span
->text
[i
].bbox
);
1715 bbox
= fz_union_bbox (bbox
, b
);
1717 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1724 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
1725 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1726 if (span
== last
.span
) {
1734 glDisable (GL_BLEND
);
1739 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
1742 fz_link
*link
, *links
;
1744 switch (page
->type
) {
1746 links
= page
->u
.pdfpage
->links
;
1750 links
= page
->u
.xpspage
->links
;
1757 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1758 glEnable (GL_LINE_STIPPLE
);
1759 glLineStipple (0.5, 0xcccc);
1761 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1762 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1763 ctm
= fz_concat (pagectm (page
), fz_translate (xoff
, yoff
));
1766 for (link
= links
; link
; link
= link
->next
) {
1767 fz_point p1
, p2
, p3
, p4
;
1769 p1
.x
= link
->rect
.x0
;
1770 p1
.y
= link
->rect
.y0
;
1772 p2
.x
= link
->rect
.x1
;
1773 p2
.y
= link
->rect
.y0
;
1775 p3
.x
= link
->rect
.x1
;
1776 p3
.y
= link
->rect
.y1
;
1778 p4
.x
= link
->rect
.x0
;
1779 p4
.y
= link
->rect
.y1
;
1781 p1
= fz_transform_point (ctm
, p1
);
1782 p2
= fz_transform_point (ctm
, p2
);
1783 p3
= fz_transform_point (ctm
, p3
);
1784 p4
= fz_transform_point (ctm
, p4
);
1786 switch (link
->dest
.kind
) {
1787 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1788 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
1789 default: glColor3ub (0, 0, 0); break;
1792 glVertex2f (p1
.x
, p1
.y
);
1793 glVertex2f (p2
.x
, p2
.y
);
1794 glVertex2f (p3
.x
, p3
.y
);
1795 glVertex2f (p4
.x
, p4
.y
);
1799 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1800 glDisable (GL_LINE_STIPPLE
);
1803 static int compareslinks (const void *l
, const void *r
)
1805 struct slink
const *ls
= l
;
1806 struct slink
const *rs
= r
;
1807 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
1808 return rs
->bbox
.x0
- rs
->bbox
.x0
;
1810 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1813 static void droptext (struct page
*page
)
1816 fz_free_text_page (state
.ctx
, page
->text
);
1819 page
->fmark
.span
= NULL
;
1820 page
->lmark
.span
= NULL
;
1824 fz_free_text_sheet (state
.ctx
, page
->sheet
);
1828 static void dropslinks (struct page
*page
)
1831 free (page
->slinks
);
1832 page
->slinks
= NULL
;
1833 page
->slinkcount
= 0;
1837 static void ensureslinks (struct page
*page
)
1841 size_t slinksize
= sizeof (*page
->slinks
);
1842 fz_link
*link
, *links
;
1844 if (state
.gen
!= page
->sgen
) {
1846 page
->sgen
= state
.gen
;
1848 if (page
->slinks
) return;
1850 switch (page
->type
) {
1852 links
= page
->u
.pdfpage
->links
;
1853 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
1854 state
.pagedims
[page
->pdimno
].ctm
);
1858 links
= page
->u
.xpspage
->links
;
1859 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
1866 for (link
= links
; link
; link
= link
->next
) {
1870 page
->slinkcount
= count
;
1871 page
->slinks
= calloc (count
, slinksize
);
1872 if (!page
->slinks
) {
1873 err (1, "realloc slinks %d", count
);
1876 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
1877 page
->slinks
[i
].link
= link
;
1878 page
->slinks
[i
].bbox
=
1879 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
1881 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
1885 /* slightly tweaked fmt_ulong by D.J. Bernstein */
1886 static void fmt_linkn (char *s
, unsigned int u
)
1888 unsigned int len
; unsigned int q
;
1889 int zma
= 'z' - 'a' + 1;
1891 while (q
> zma
- 1) { ++len
; q
/= zma
; }
1894 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
1895 /* handles u == 0 */
1900 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
1901 int noff
, char *targ
, int tlen
)
1905 struct slink
*slink
;
1906 double x0
, y0
, x1
, y1
, w
;
1908 ensureslinks (page
);
1909 glColor3ub (0xc3, 0xb0, 0x91);
1910 for (i
= 0; i
< page
->slinkcount
; ++i
) {
1911 fmt_linkn (buf
, i
+ noff
);
1912 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
1913 slink
= &page
->slinks
[i
];
1915 x0
= slink
->bbox
.x0
+ xoff
- 5;
1916 y1
= slink
->bbox
.y0
+ yoff
- 5;
1918 w
= measure_string (state
.face
, 12, buf
);
1920 glRectd (x0
, y0
, x1
, y1
);
1924 glEnable (GL_BLEND
);
1925 glEnable (GL_TEXTURE_2D
);
1926 glColor3ub (0, 0, 0);
1927 for (i
= 0; i
< page
->slinkcount
; ++i
) {
1928 fmt_linkn (buf
, i
+ noff
);
1929 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
1930 slink
= &page
->slinks
[i
];
1932 x0
= slink
->bbox
.x0
+ xoff
;
1933 y0
= slink
->bbox
.y0
+ yoff
+ 12;
1934 draw_string (state
.face
, 12, x0
, y0
, buf
);
1937 glDisable (GL_TEXTURE_2D
);
1938 glDisable (GL_BLEND
);
1942 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
1945 struct slice
*slice1
;
1948 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
1949 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
1951 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
1952 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1953 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1957 int texindex
= state
.texindex
++ % state
.texcount
;
1959 if (state
.texowners
[texindex
].w
== tile
->w
) {
1960 if (state
.texowners
[texindex
].h
>= slice
->h
) {
1964 state
.texowners
[texindex
].h
= slice
->h
;
1968 state
.texowners
[texindex
].h
= slice
->h
;
1971 state
.texowners
[texindex
].w
= tile
->w
;
1972 state
.texowners
[texindex
].slice
= slice
;
1973 slice
->texindex
= texindex
;
1975 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
1977 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1985 tile
->pixmap
->samples
+offset
1989 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1997 tile
->pixmap
->samples
+offset
2003 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2005 CAMLparam2 (args_v
, ptr_v
);
2006 int dispx
= Int_val (Field (args_v
, 0));
2007 int dispy
= Int_val (Field (args_v
, 1));
2008 int dispw
= Int_val (Field (args_v
, 2));
2009 int disph
= Int_val (Field (args_v
, 3));
2010 int tilex
= Int_val (Field (args_v
, 4));
2011 int tiley
= Int_val (Field (args_v
, 5));
2012 char *s
= String_val (ptr_v
);
2013 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2015 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2017 int slicey
, firstslice
;
2018 struct slice
*slice
;
2020 firstslice
= tiley
/ tile
->sliceheight
;
2021 slice
= &tile
->slices
[firstslice
];
2022 slicey
= tiley
% tile
->sliceheight
;
2027 dh
= slice
->h
- slicey
;
2028 dh
= MIN (disph
, dh
);
2029 uploadslice (tile
, slice
);
2033 glTexCoord2i (tilex
, slicey
);
2034 glVertex2i (dispx
, dispy
);
2036 glTexCoord2i (tilex
+dispw
, slicey
);
2037 glVertex2i (dispx
+dispw
, dispy
);
2039 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
2040 glVertex2i (dispx
+dispw
, dispy
+dh
);
2042 glTexCoord2i (tilex
, slicey
+dh
);
2043 glVertex2i (dispx
, dispy
+dh
);
2050 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2054 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2055 CAMLreturn (Val_unit
);
2058 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2059 value xoff_v
, value yoff_v
,
2062 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2063 int xoff
= Int_val (xoff_v
);
2064 int yoff
= Int_val (yoff_v
);
2065 int noff
= Int_val (Field (li_v
, 0));
2066 char *targ
= String_val (Field (li_v
, 1));
2067 int tlen
= caml_string_length (Field (li_v
, 1));
2068 char *s
= String_val (ptr_v
);
2069 int hlmask
= Int_val (hlinks_v
);
2070 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2072 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2073 if (trylock ("ml_postprocess")) {
2078 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
);
2079 noff
= page
->slinkcount
;
2081 showsel (page
, xoff
, yoff
);
2082 unlock ("ml_postprocess");
2085 CAMLreturn (Val_int (noff
));
2088 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2092 fz_link
*link
, *links
;
2094 switch (page
->type
) {
2096 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
2097 links
= page
->u
.pdfpage
->links
;
2102 links
= page
->u
.xpspage
->links
;
2111 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
2112 ctm
= fz_invert_matrix (ctm
);
2113 p
= fz_transform_point (ctm
, p
);
2115 for (link
= links
; link
; link
= link
->next
) {
2116 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2117 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2125 static void ensuretext (struct page
*page
)
2127 if (state
.gen
!= page
->tgen
) {
2129 page
->tgen
= state
.gen
;
2134 page
->text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
2135 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2136 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2137 fz_run_display_list (page
->dlist
,
2140 fz_infinite_bbox
, NULL
);
2141 qsort (page
->text
->blocks
, page
->text
->len
,
2142 sizeof (*page
->text
->blocks
), compareblocks
);
2143 fz_free_device (tdev
);
2147 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2149 CAMLparam2 (start_page_v
, dir_v
);
2151 int i
, dir
= Int_val (dir_v
);
2152 int start_page
= Int_val (start_page_v
);
2153 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2155 ret_v
= Val_int (0);
2156 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2160 lock ("ml_findpage_with_links");
2161 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2164 switch (state
.type
) {
2167 pdf_page
*page
= pdf_load_page (state
.u
.pdf
, i
);
2168 found
= !!page
->links
;
2174 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2175 found
= !!page
->links
;
2181 ARSERT ("invalid document type");
2185 ret_v
= caml_alloc_small (1, 1);
2186 Field (ret_v
, 0) = Val_int (i
);
2191 unlock ("ml_findpage_with_links");
2197 enum { dir_first
, dir_last
};
2198 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2200 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2202 CAMLparam2 (ptr_v
, dir_v
);
2203 CAMLlocal2 (ret_v
, pos_v
);
2205 int dirtag
, i
, slinkindex
;
2206 struct slink
*found
= NULL
,*slink
;
2207 char *s
= String_val (ptr_v
);
2209 page
= parse_pointer ("ml_findlink", s
);
2210 ret_v
= Val_int (0);
2211 if (trylock ("ml_findlink")) {
2215 ensureslinks (page
);
2217 if (Is_block (dir_v
)) {
2218 dirtag
= Tag_val (dir_v
);
2220 case dir_first_visible
:
2222 int x0
, y0
, dir
, first_index
, last_index
;
2224 pos_v
= Field (dir_v
, 0);
2225 x0
= Int_val (Field (pos_v
, 0));
2226 y0
= Int_val (Field (pos_v
, 1));
2227 dir
= Int_val (Field (pos_v
, 2));
2232 last_index
= page
->slinkcount
;
2235 first_index
= page
->slinkcount
- 1;
2239 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2240 slink
= &page
->slinks
[i
];
2241 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2250 slinkindex
= Int_val (Field (dir_v
, 0));
2251 found
= &page
->slinks
[slinkindex
];
2252 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2253 slink
= &page
->slinks
[i
];
2254 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2262 slinkindex
= Int_val (Field (dir_v
, 0));
2263 found
= &page
->slinks
[slinkindex
];
2264 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2265 slink
= &page
->slinks
[i
];
2266 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2274 slinkindex
= Int_val (Field (dir_v
, 0));
2275 found
= &page
->slinks
[slinkindex
];
2276 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2277 slink
= &page
->slinks
[i
];
2278 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2286 slinkindex
= Int_val (Field (dir_v
, 0));
2287 found
= &page
->slinks
[slinkindex
];
2288 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2289 slink
= &page
->slinks
[i
];
2290 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2299 dirtag
= Int_val (dir_v
);
2302 found
= page
->slinks
;
2307 found
= page
->slinks
+ (page
->slinkcount
- 1);
2313 ret_v
= caml_alloc_small (2, 1);
2314 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2317 unlock ("ml_findlink");
2322 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2328 switch (link->dest.kind) { \
2329 case FZ_LINK_GOTO: \
2333 pageno = link->dest.ld.gotor.page; \
2337 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2338 p.y = link->dest.ld.gotor.lt.y; \
2339 p = fz_transform_point (pdim->lctm, p); \
2341 tup_v = caml_alloc_tuple (2); \
2342 ret_v = caml_alloc_small (1, ugoto); \
2343 Field (tup_v, 0) = Val_int (pageno); \
2344 Field (tup_v, 1) = Val_int (p.y); \
2345 Field (ret_v, 0) = tup_v; \
2350 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2351 ret_v = caml_alloc_small (1, uuri); \
2352 Field (ret_v, 0) = str_v; \
2355 case FZ_LINK_LAUNCH: \
2356 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2357 ret_v = caml_alloc_small (1, ulaunch); \
2358 Field (ret_v, 0) = str_v; \
2361 case FZ_LINK_NAMED: \
2362 str_v = caml_copy_string (link->dest.ld.named.named); \
2363 ret_v = caml_alloc_small (1, unamed); \
2364 Field (ret_v, 0) = str_v; \
2367 case FZ_LINK_GOTOR: \
2368 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2369 pageno = link->dest.ld.gotor.page; \
2370 tup_v = caml_alloc_tuple (2); \
2371 ret_v = caml_alloc_small (1, uremote); \
2372 Field (tup_v, 0) = str_v; \
2373 Field (tup_v, 1) = Val_int (pageno); \
2374 Field (ret_v, 0) = tup_v; \
2381 snprintf (buf, sizeof (buf), \
2382 "unhandled link kind %d", link->dest.kind); \
2383 str_v = caml_copy_string (buf); \
2384 ret_v = caml_alloc_small (1, uunexpected); \
2385 Field (ret_v, 0) = str_v; \
2391 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2393 CAMLparam2 (ptr_v
, n_v
);
2394 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2397 struct pagedim
*pdim
;
2398 char *s
= String_val (ptr_v
);
2400 ret_v
= Val_int (0);
2401 if (trylock ("ml_getlink")) {
2405 page
= parse_pointer ("ml_getlink", s
);
2406 ensureslinks (page
);
2407 pdim
= &state
.pagedims
[page
->pdimno
];
2408 link
= page
->slinks
[Int_val (n_v
)].link
;
2411 unlock ("ml_getlink");
2416 CAMLprim value
ml_getlinkcount (value ptr_v
)
2420 char *s
= String_val (ptr_v
);
2422 page
= parse_pointer ("ml_getlinkcount", s
);
2423 CAMLreturn (Val_int (page
->slinkcount
));
2426 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2428 CAMLparam2 (ptr_v
, n_v
);
2431 struct slink
*slink
;
2432 char *s
= String_val (ptr_v
);
2434 page
= parse_pointer ("ml_getlinkrect", s
);
2435 ret_v
= caml_alloc_tuple (4);
2436 if (trylock ("ml_getlinkrect")) {
2437 Field (ret_v
, 0) = Val_int (0);
2438 Field (ret_v
, 1) = Val_int (0);
2439 Field (ret_v
, 2) = Val_int (0);
2440 Field (ret_v
, 3) = Val_int (0);
2443 ensureslinks (page
);
2445 slink
= &page
->slinks
[Int_val (n_v
)];
2446 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2447 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2448 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2449 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2450 unlock ("ml_getlinkrect");
2456 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2458 CAMLparam3 (ptr_v
, x_v
, y_v
);
2459 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2462 char *s
= String_val (ptr_v
);
2463 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2464 struct pagedim
*pdim
;
2466 ret_v
= Val_int (0);
2467 if (trylock ("ml_whatsunder")) {
2471 page
= parse_pointer ("ml_whatsunder", s
);
2472 pdim
= &state
.pagedims
[page
->pdimno
];
2473 x
+= pdim
->bounds
.x0
;
2474 y
+= pdim
->bounds
.y0
;
2475 link
= getlink (page
, x
, y
);
2481 fz_text_block
*block
;
2484 for (block
= page
->text
->blocks
;
2485 block
< page
->text
->blocks
+ page
->text
->len
;
2490 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2493 for (line
= block
->lines
;
2494 line
< block
->lines
+ block
->len
;
2499 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2502 for (span
= line
->spans
;
2503 span
< line
->spans
+ line
->len
;
2508 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2511 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
2514 if (x
>= b
->x0
&& x
<= b
->x1
2515 && y
>= b
->y0
&& y
<= b
->y1
) {
2517 span
->style
->font
&& span
->style
->font
->name
2518 ? span
->style
->font
->name
2519 : "Span has no font name"
2521 FT_FaceRec
*face
= span
->style
->font
->ft_face
;
2522 if (face
&& face
->family_name
) {
2524 char *n1
= face
->family_name
;
2525 size_t l1
= strlen (n1
);
2526 size_t l2
= strlen (n2
);
2528 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2529 s
= malloc (l1
+ l2
+ 2);
2533 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2534 str_v
= caml_copy_string (s
);
2540 str_v
= caml_copy_string (n2
);
2542 ret_v
= caml_alloc_small (1, utext
);
2543 Field (ret_v
, 0) = str_v
;
2552 unlock ("ml_whatsunder");
2558 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2560 CAMLparam2 (ptr_v
, rect_v
);
2563 struct pagedim
*pdim
;
2564 int i
, x0
, x1
, y0
, y1
;
2565 char *s
= String_val (ptr_v
);
2567 fz_text_block
*block
;
2568 fz_text_span
*span
, *fspan
, *lspan
;
2569 fz_text_line
*line
, *fline
= NULL
, *lline
= NULL
;
2571 if (trylock ("ml_seltext")) {
2575 page
= parse_pointer ("ml_seltext", s
);
2578 pdim
= &state
.pagedims
[page
->pdimno
];
2579 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2580 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2581 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2582 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2585 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2586 glColor3ub (128, 128, 128);
2587 glRecti (x0
, y0
, x1
, y1
);
2588 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2591 fspan
= lspan
= NULL
;
2593 for (block
= page
->text
->blocks
;
2594 block
< page
->text
->blocks
+ page
->text
->len
;
2596 for (line
= block
->lines
;
2597 line
< block
->lines
+ block
->len
;
2599 for (span
= line
->spans
;
2600 span
< line
->spans
+ line
->len
;
2602 for (i
= 0; i
< span
->len
; ++i
) {
2603 b
= &span
->text
[i
].bbox
;
2606 if (x0
>= b
->x0
&& x0
<= b
->x1
2607 && y0
>= b
->y0
&& y0
<= b
->y1
) {
2613 if (x1
>= b
->x0
&& x1
<= b
->x1
2614 && y1
>= b
->y0
&& y1
<= b
->y1
) {
2620 if (0 && selected
) {
2621 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2622 glColor3ub (128, 128, 128);
2623 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2624 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2630 if (y1
< y0
|| x1
< x0
) {
2633 if (fspan
== lspan
) {
2638 if (fline
!= lline
) {
2657 page
->fmark
.span
= fspan
;
2660 page
->lmark
.span
= lspan
;
2662 unlock ("ml_seltext");
2665 CAMLreturn (Val_unit
);
2668 static int UNUSED
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2673 for (i
= a
; i
<= b
; ++i
) {
2674 len
= fz_runetochar (buf
, span
->text
[i
].c
);
2675 ret
= fwrite (buf
, len
, 1, f
);
2678 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2679 len
, ret
, strerror (errno
));
2687 value
ml_popen (value UNUSED u1
, value UNUSED u2
)
2689 caml_failwith ("ml_popen not implemented under Cygwin");
2692 CAMLprim value
ml_popen (value command_v
, value fds_v
)
2694 CAMLparam2 (command_v
, fds_v
);
2695 CAMLlocal2 (l_v
, tup_v
);
2699 posix_spawnattr_t attr
;
2700 posix_spawn_file_actions_t fa
;
2701 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
2703 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
2704 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
2707 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
2708 msg
= "posix_spawnattr_init";
2713 #ifdef POSIX_SPAWN_USEVFORK
2714 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
2715 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
2721 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
2724 tup_v
= Field (l_v
, 0);
2725 fd1
= Int_val (Field (tup_v
, 0));
2726 fd2
= Int_val (Field (tup_v
, 1));
2728 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
2729 msg
= "posix_spawn_file_actions_addclose";
2735 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
2736 msg
= "posix_spawn_file_actions_adddup2";
2743 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
2744 msg
= "posix_spawn";
2749 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
2750 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
2753 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
2754 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
2758 CAMLreturn (Val_unit
);
2761 if ((ret2
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
2762 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
2766 if ((ret2
= posix_spawnattr_destroy (&attr
)) != 0) {
2767 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret2
));
2770 unix_error (ret
, msg
, earg_v
);
2774 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
2782 fz_text_block
*block
;
2783 int fd
= Int_val (fd_v
);
2784 char *s
= String_val (ptr_v
);
2786 if (trylock ("ml_copysel")) {
2790 page
= parse_pointer ("ml_sopysel", s
);
2792 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
2793 fprintf (stderr
, "nothing to copy\n");
2797 f
= fdopen (fd
, "w");
2799 fprintf (stderr
, "failed to fopen sel pipe: %s\n",
2804 for (block
= page
->text
->blocks
;
2805 block
< page
->text
->blocks
+ page
->text
->len
;
2807 for (line
= block
->lines
;
2808 line
< block
->lines
+ block
->len
;
2810 for (span
= line
->spans
;
2811 span
< line
->spans
+ line
->len
;
2815 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
2816 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
2817 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
2820 if (pipespan (f
, span
, a
, b
)) {
2823 if (span
== line
->spans
+ line
->len
- 1) {
2824 if (putc ('\n', f
) == EOF
) {
2826 "failed break line on sel pipe: %s\n",
2831 if (span
== page
->lmark
.span
) {
2839 page
->lmark
.span
= NULL
;
2840 page
->fmark
.span
= NULL
;
2844 int ret
= fclose (f
);
2847 if (errno
!= ECHILD
) {
2848 fprintf (stderr
, "failed to close sel pipe: %s\n",
2854 unlock ("ml_copysel");
2859 fprintf (stderr
, "failed to close sel pipe: %s\n",
2863 CAMLreturn (Val_unit
);
2866 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
2868 CAMLparam1 (pagedimno_v
);
2870 int pagedimno
= Int_val (pagedimno_v
);
2873 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
2874 if (trylock ("ml_getpdimrect")) {
2875 box
= fz_empty_rect
;
2878 box
= state
.pagedims
[pagedimno
].mediabox
;
2879 unlock ("ml_getpdimrect");
2882 Store_double_field (ret_v
, 0, box
.x0
);
2883 Store_double_field (ret_v
, 1, box
.x1
);
2884 Store_double_field (ret_v
, 2, box
.y0
);
2885 Store_double_field (ret_v
, 3, box
.y1
);
2890 static double getmaxw (void)
2896 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2899 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2900 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2903 maxw
= MAX (w
, maxw
);
2908 CAMLprim value
ml_getmaxw (value unit_v
)
2910 CAMLparam1 (unit_v
);
2914 if (trylock ("ml_getmaxw")) {
2918 unlock ("ml_getmaxw");
2920 ret_v
= caml_copy_double (maxw
);
2924 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
2926 CAMLparam3 (winw_v
, winh_v
, dw_v
);
2930 double maxw
= 0.0, maxh
= 0.0;
2932 double winw
= Int_val (winw_v
);
2933 double winh
= Int_val (winh_v
);
2934 double dw
= Int_val (dw_v
);
2935 double pw
= 1.0, ph
= 1.0, num
, den
;
2937 if (trylock ("ml_zoom_for_height")) {
2941 if (state
.proportional
) {
2945 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
2946 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
2948 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
2949 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
2950 y0
= MIN (p
->mediabox
.y0
, p
->mediabox
.y1
);
2951 y1
= MAX (p
->mediabox
.y0
, p
->mediabox
.y1
);
2956 if (state
.proportional
) {
2958 scaledh
= h
* scale
;
2965 if (scaledh
> maxh
) {
2972 num
= (winh
* pw
) + (ph
* dw
);
2976 unlock ("ml_zoom_for_height");
2978 ret_v
= caml_copy_double (zoom
);
2982 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
2984 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
2986 int pt
= Int_val(pt_v
);
2987 int x
= Int_val (x_v
);
2988 int y
= Int_val (y_v
);
2991 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
2992 ret_v
= caml_copy_double (w
);
2996 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
2998 CAMLparam2 (pt_v
, string_v
);
3000 int pt
= Int_val (pt_v
);
3003 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3004 ret_v
= caml_copy_double (w
);
3008 CAMLprim value
ml_getpagebox (value opaque_v
)
3010 CAMLparam1 (opaque_v
);
3014 char *s
= String_val (opaque_v
);
3015 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3017 ret_v
= caml_alloc_tuple (4);
3018 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
3019 dev
->hints
|= FZ_IGNORE_SHADE
;
3021 switch (page
->type
) {
3023 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
3027 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
3031 bbox
= fz_infinite_bbox
;
3035 fz_free_device (dev
);
3036 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3037 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3038 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3039 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3044 CAMLprim value
ml_setaalevel (value level_v
)
3046 CAMLparam1 (level_v
);
3048 state
.aalevel
= Int_val (level_v
);
3049 CAMLreturn (Val_unit
);
3053 #include <X11/Xlib.h>
3059 GLXDrawable drawable
;
3062 #include "keysym2ucs.c"
3064 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3066 CAMLparam1 (keysym_v
);
3068 KeySym keysym
= Int_val (keysym_v
);
3073 rune
= keysym2ucs (keysym
);
3074 len
= fz_runetochar (buf
, rune
);
3076 str_v
= caml_copy_string (buf
);
3080 CAMLprim value
ml_glx (value win_v
)
3083 XVisualInfo
*visual
;
3084 int screen
, wid
= Int_val (win_v
);
3085 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3087 glx
.dpy
= XOpenDisplay (NULL
);
3089 caml_failwith ("XOpenDisplay failed");
3092 screen
= DefaultScreen (glx
.dpy
);
3093 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
3095 XCloseDisplay (glx
.dpy
);
3097 caml_failwith ("glXChooseVisual");
3100 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
3102 XCloseDisplay (glx
.dpy
);
3105 caml_failwith ("glXCreateContext");
3109 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
3110 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3111 XCloseDisplay (glx
.dpy
);
3114 caml_failwith ("glXMakeCurrent");
3118 CAMLreturn (Val_unit
);
3121 CAMLprim value
ml_swapb (value unit_v
)
3123 CAMLparam1 (unit_v
);
3124 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
3125 CAMLreturn (Val_unit
);
3128 CAMLprim value
ml_glxsync (value unit_v
)
3130 CAMLparam1 (unit_v
);
3131 if (glx
.dpy
&& glx
.ctx
) {
3135 CAMLreturn (Val_unit
);
3138 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
3139 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
3141 CAMLprim value
ml_platform (value unit_v
)
3143 CAMLparam1 (unit_v
);
3144 int platid
= piunknown
;
3146 #if defined __linux__
3148 #elif defined __CYGWIN__
3150 #elif defined __DragonFly__
3151 platid
= pidragonflybsd
;
3152 #elif defined __FreeBSD__
3154 #elif defined __OpenBSD__
3156 #elif defined __NetBSD__
3158 #elif defined __sun__
3160 #elif defined __APPLE__
3163 CAMLreturn (Val_int (platid
));
3166 CAMLprim value
ml_cloexec (value fd_v
)
3169 int fd
= Int_val (fd_v
);
3171 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3172 uerror ("fcntl", Nothing
);
3174 CAMLreturn (Val_unit
);
3177 CAMLprim value
ml_init (value pipe_v
, value params_v
)
3179 CAMLparam2 (pipe_v
, params_v
);
3180 CAMLlocal2 (trim_v
, fuzz_v
);
3186 struct sigaction sa
;
3188 state
.cr
= Int_val (Field (pipe_v
, 0));
3189 state
.cw
= Int_val (Field (pipe_v
, 1));
3190 state
.rotate
= Int_val (Field (params_v
, 0));
3191 state
.proportional
= Bool_val (Field (params_v
, 1));
3192 trim_v
= Field (params_v
, 2);
3193 texcount
= Int_val (Field (params_v
, 3));
3194 state
.sliceheight
= Int_val (Field (params_v
, 4));
3195 mustoresize
= Int_val (Field (params_v
, 5));
3196 colorspace
= Int_val (Field (params_v
, 6));
3197 fontpath
= String_val (Field (params_v
, 7));
3199 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
3201 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
3202 fuzz_v
= Field (trim_v
, 1);
3203 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
3204 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
3205 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
3206 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
3208 set_tex_params (colorspace
);
3211 state
.face
= load_font (fontpath
);
3215 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
3217 state
.face
= load_builtin_font (base
, len
);
3219 if (!state
.face
) _exit (1);
3221 realloctexts (texcount
);
3224 sa
.sa_handler
= SIG_IGN
;
3225 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
3227 sa
.sa_handler
= SIG_DFL
;
3228 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
3230 if (sigemptyset (&sa
.sa_mask
)) {
3231 err (1, "sigemptyset");
3233 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
3234 err (1, "sigaction");
3237 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
3239 errx (1, "pthread_create: %s", strerror (ret
));
3242 CAMLreturn (Val_unit
);