1 /* lots of code c&p-ed directly from mupdf */
8 #define WIN32_LEAN_AND_MEAN
11 #define fionread_arg long
19 #pragma warning (disable:4244)
20 #pragma warning (disable:4996)
21 #pragma warning (disable:4995)
25 #define NORETURN __declspec (noreturn)
27 #elif defined __GNUC__
28 #define NORETURN __attribute__ ((noreturn))
29 #define UNUSED __attribute__ ((unused))
36 static void __declspec (noreturn
) sockerr (int exitcode
, const char *fmt
, ...)
41 vfprintf (stderr
, fmt
, ap
);
43 fprintf (stderr
, ": wsaerror 0x%x\n", WSAGetLastError ());
49 #define fionread_arg int
50 #define ioctlsocket ioctl
63 #include <sys/types.h>
64 #include <sys/socket.h>
65 #include <sys/ioctl.h>
68 static void NORETURN
err (int exitcode
, const char *fmt
, ...)
75 vfprintf (stderr
, fmt
, ap
);
77 fprintf (stderr
, ": %s\n", strerror (savederrno
));
82 static void NORETURN
errx (int exitcode
, const char *fmt
, ...)
87 vfprintf (stderr
, fmt
, ap
);
95 #include <OpenGL/gl.h>
100 #ifndef GL_TEXTURE_RECTANGLE_ARB
101 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
104 #include <caml/fail.h>
105 #include <caml/alloc.h>
106 #include <caml/memory.h>
107 #include <caml/unixsupport.h>
113 #define lprintf printf
119 #include FT_FREETYPE_H
122 #define ARSERT(cond) for (;;) { \
124 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
149 struct pagedim pagedim
;
154 struct slice slices
[];
157 #if !defined _WIN32 && !defined __APPLE__
165 struct pagedim
*pagedims
;
169 fz_glyph_cache
*cache
;
199 static CRITICAL_SECTION critsec
;
201 static void lock (void *unused
)
204 EnterCriticalSection (&critsec
);
207 static void unlock (void *unused
)
210 LeaveCriticalSection (&critsec
);
213 static int trylock (void *unused
)
215 return TryEnterCriticalSection (&critsec
) == 0;
218 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
220 static void lock (const char *cap
)
222 int ret
= pthread_mutex_lock (&mutex
);
224 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
228 static void unlock (const char *cap
)
230 int ret
= pthread_mutex_unlock (&mutex
);
232 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
236 static int trylock (const char *cap
)
238 int ret
= pthread_mutex_trylock (&mutex
);
240 if (ret
&& ret
!= EBUSY
) {
241 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
247 static void *parse_pointer (const char *cap
, const char *s
)
252 ret
= sscanf (s
, "%p", &ptr
);
254 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
259 static int hasdata (int sock
)
263 ret
= ioctlsocket (sock
, FIONREAD
, &avail
);
264 if (ret
) sockerr (1, "hasdata: FIONREAD error ret=%d", ret
);
268 static double now (void)
272 if (gettimeofday (&tv
, NULL
)) {
273 err (1, "gettimeofday");
275 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
278 static void readdata (int fd
, char *p
, int size
)
282 n
= recv (fd
, p
, size
, 0);
284 if (!n
) errx (1, "EOF while reading");
285 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
289 static void writedata (int fd
, char *p
, int size
)
294 buf
[0] = (size
>> 24) & 0xff;
295 buf
[1] = (size
>> 16) & 0xff;
296 buf
[2] = (size
>> 8) & 0xff;
297 buf
[3] = (size
>> 0) & 0xff;
299 n
= send (fd
, buf
, 4, 0);
301 if (!n
) errx (1, "EOF while writing length");
302 sockerr (1, "send " FMT_ss
, n
);
305 n
= send (fd
, p
, size
, 0);
307 if (!n
) errx (1, "EOF while writing data");
308 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
314 __attribute__ ((format (printf
, 2, 3)))
316 printd (int fd
, const char *fmt
, ...)
324 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
327 len
= vsnprintf (buf
, size
, fmt
, ap
);
330 if (len
> -1 && len
< size
) {
331 writedata (fd
, buf
, len
);
341 buf
= realloc (buf
, size
);
346 static void die (fz_error error
)
348 fz_catch (error
, "aborting");
350 pdf_free_xref (state
.xref
);
354 static void openxref (char *filename
, char *password
)
359 for (i
= 0; i
< state
.texcount
; ++i
) {
360 state
.texowners
[i
].slice
= NULL
;
364 fz_free_glyph_cache (state
.cache
);
367 state
.cache
= fz_new_glyph_cache ();
369 errx (1, "fz_newglyph_cache failed");
373 if (state
.xref
->store
) {
374 pdf_free_store (state
.xref
->store
);
375 state
.xref
->store
= NULL
;
377 pdf_free_xref (state
.xref
);
381 if (state
.pagedims
) {
382 free (state
.pagedims
);
383 state
.pagedims
= NULL
;
385 state
.pagedimcount
= 0;
387 error
= pdf_open_xref (&state
.xref
, filename
, password
);
392 error
= pdf_load_page_tree (state
.xref
);
397 state
.pagecount
= pdf_count_pages (state
.xref
);
400 static void pdfinfo (void)
402 printd (state
.sock
, "i PDF version %d.%d\n",
403 state
.xref
->version
/ 10, state
.xref
->version
% 10);
405 #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
412 f
= open_memstream (&buf
, &size
);
414 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
415 fz_fprint_obj (f
, fz_resolve_indirect (obj
), 0);
416 if (fclose (f
)) err (1, "fclose on memstream failed");
417 if (size
> 64*1024) size
= 64*1024;
418 printd (state
.sock
, "i %.*s", (int) size
, buf
);
422 printd (state
.sock
, "i error opening memstream: %s\n",
429 static int readlen (int fd
)
434 n
= recv (fd
, p
, 4, 0);
436 if (!n
) errx (1, "EOF while reading length");
437 sockerr (1, "recv " FMT_ss
, n
);
440 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
443 static void unlinkpage (struct page
*page
)
447 for (i
= 0; i
< page
->slicecount
; ++i
) {
448 struct slice
*s
= &page
->slices
[i
];
449 if (s
->texindex
!= -1) {
450 if (state
.texowners
[s
->texindex
].slice
== s
) {
451 state
.texowners
[s
->texindex
].slice
= NULL
;
452 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
453 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
459 static void freepage (struct page
*page
)
461 fz_drop_pixmap (page
->pixmap
);
466 fz_free_text_span (page
->text
);
468 if (page
->drawpage
) {
469 pdf_free_page (page
->drawpage
);
475 static void subdivide (struct page
*p
)
478 int h
= p
->pixmap
->h
;
479 int th
= MIN (h
, state
.sliceheight
);
481 for (i
= 0; i
< p
->slicecount
; ++i
) {
482 struct slice
*s
= &p
->slices
[i
];
490 static int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
492 return p1
->rotate
== p2
->rotate
493 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
494 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
500 static int cacheline32bytes
;
501 extern char **environ
;
503 static void __attribute__ ((constructor
)) clcheck (void)
505 char **envp
= environ
;
510 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
512 cacheline32bytes
= auxv
[1] == 32;
518 static void __attribute__ ((optimize ("O"))) clearpixmap (fz_pixmap
*pixmap
)
520 if (cacheline32bytes
) {
521 intptr_t a1
, a2
, diff
;
522 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
523 vector
unsigned char v
= vec_splat_u8 (-1);
524 vector
unsigned char *p
;
526 a1
= a2
= (intptr_t) pixmap
->samples
;
527 a2
= (a1
+ 31) & ~31;
532 while (a1
!= a2
) *(char *) a1
++ = 0xff;
533 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
534 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
536 vec_st (v
, i
+ 16, p
);
538 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
540 else fz_clear_pixmap_with_color (pixmap
, 0xff);
543 #define clearpixmap(p) fz_clear_pixmap_with_color (p, 0xff)
546 static void *render (int pageno
, int pindex
)
550 struct page
*page
= NULL
;
554 struct pagedim
*pagedim
;
557 printd (state
.sock
, "V rendering %d", pageno
);
559 pagedim
= &state
.pagedims
[pindex
];
560 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
561 + state
.sliceheight
- 1) / state
.sliceheight
;
562 slicecount
+= slicecount
== 0;
565 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
568 fz_free_text_span (page
->text
);
571 if (page
->drawpage
) {
572 pdf_free_page (page
->drawpage
);
573 page
->drawpage
= NULL
;
577 freepage (state
.pig
);
581 page
= calloc (sizeof (*page
)
582 + (slicecount
* sizeof (struct slice
)), 1);
584 err (1, "calloc page %d\n", pageno
);
586 page
->pixmap
= fz_new_pixmap_with_rect (fz_device_rgb
, pagedim
->bbox
);
589 page
->slicecount
= slicecount
;
591 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
- 1);
595 clearpixmap (page
->pixmap
);
597 idev
= fz_new_draw_device (state
.cache
, page
->pixmap
);
599 die (fz_throw ("fz_newdrawdevice failed"));
600 error
= pdf_run_page (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
602 die (fz_rethrow (error
, "pdf_runpage failed"));
603 fz_free_device (idev
);
605 page
->drawpage
= drawpage
;
606 page
->pagedim
= *pagedim
;
607 page
->pageno
= pageno
;
611 pdf_age_store (state
.xref
->store
, 3);
613 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
618 static void initpdims (void)
624 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
628 fz_obj
*obj
, *pageobj
;
630 pageobj
= state
.xref
->page_objs
[pageno
];
632 obj
= fz_dict_gets (pageobj
, "CropBox");
633 if (!fz_is_array (obj
)) {
634 obj
= fz_dict_gets (pageobj
, "MediaBox");
635 if (!fz_is_array (obj
)) {
636 die (fz_throw ("cannot find page bounds %d (%d Rd)",
637 fz_to_num (pageobj
), fz_to_gen (pageobj
)));
640 box
= pdf_to_rect (obj
);
642 obj
= fz_dict_gets (pageobj
, "Rotate");
643 if (fz_is_int (obj
)) {
644 rotate
= fz_to_int (obj
);
649 rotate
+= state
.rotate
;
651 p
= &state
.pagedims
[state
.pagedimcount
- 1];
652 if ((state
.pagedimcount
== 0)
653 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
656 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
657 state
.pagedims
= realloc (state
.pagedims
, size
);
658 if (!state
.pagedims
) {
659 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
660 size
, state
.pagedimcount
+ 1);
662 p
= &state
.pagedims
[state
.pagedimcount
++];
669 printd (state
.sock
, "T Processed %d pages in %f seconds",
670 state
.pagecount
, end
- start
);
673 static void layout (void)
678 double zoom
, w
, maxw
= 0;
679 struct pagedim
*p
= state
.pagedims
;
681 if (state
.proportional
) {
682 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
683 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
684 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
685 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
686 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
689 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
690 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
691 box2
= fz_transform_rect (ctm
, box
);
692 w
= box2
.x1
- box2
.x0
;
693 maxw
= MAX (w
, maxw
);
698 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
699 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
700 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
701 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
702 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
705 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
706 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
707 box2
= fz_transform_rect (ctm
, box
);
708 w
= box2
.x1
- box2
.x0
;
710 if (state
.proportional
) {
711 double scale
= w
/ maxw
;
712 zoom
= (state
.w
/ w
) * scale
;
718 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
719 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
720 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
721 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
722 p
->bbox
= fz_round_rect (fz_transform_rect (ctm
, box
));
723 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
724 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
727 while (p
-- != state
.pagedims
) {
728 printd (state
.sock
, "l %d %d %d %d",
729 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
,
734 static void recurse_outline (pdf_outline
*outline
, int level
)
742 if (!outline
->link
) goto next
;
744 obj
= outline
->link
->dest
;
745 if (fz_is_indirect (obj
)) {
746 obj
= fz_resolve_indirect (obj
);
748 if (fz_is_array (obj
)) {
751 obj2
= fz_array_get (obj
, 0);
752 if (fz_is_int (obj2
)) {
753 pageno
= fz_to_int (obj2
);
756 pageno
= pdf_find_page_number (state
.xref
, obj2
);
759 if (fz_array_len (obj
) > 3) {
763 xo
= fz_array_get (obj
, 2);
764 yo
= fz_array_get (obj
, 3);
765 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
766 struct pagedim
*pagedim
= state
.pagedims
;
768 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
769 if (state
.pagedims
[i
].pageno
> pageno
)
771 pagedim
= &state
.pagedims
[i
];
773 p
.x
= fz_to_int (xo
);
774 p
.y
= fz_to_int (yo
);
775 p
= fz_transform_point (pagedim
->ctm
, p
);
776 h
= pagedim
->bbox
.y1
- pagedim
->bbox
.y0
;
782 pageno
= pdf_find_page_number (state
.xref
, outline
->link
->dest
);
785 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
787 printd (state
.sock
, "o %d %d %d %d %s",
788 level
, pageno
, top
, h
, outline
->title
);
791 if (outline
->child
) {
792 recurse_outline (outline
->child
, level
+ 1);
794 outline
= outline
->next
;
798 static void process_outline (void)
800 pdf_outline
*outline
;
802 if (!state
.needoutline
) return;
804 state
.needoutline
= 0;
805 outline
= pdf_load_outline (state
.xref
);
807 recurse_outline (outline
, 0);
808 pdf_free_outline (outline
);
812 static int comparespans (const void *l
, const void *r
)
814 fz_text_span
const *const*ls
= l
;
815 fz_text_span
const *const*rs
= r
;
816 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
819 /* wishful thinking function */
820 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
830 fz_text_span
*text
, *span
, **pspan
;
831 struct pagedim
*pdim
, *pdimprev
;
838 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
840 pdf_age_store (state
.xref
->store
, 3);
842 if (hasdata (state
.sock
)) {
843 printd (state
.sock
, "T attention requested aborting search at %d",
848 printd (state
.sock
, "T searching in page %d", pageno
);
852 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
853 pdim
= &state
.pagedims
[i
];
854 if (pdim
->pageno
== pageno
) {
857 if (pdim
->pageno
> pageno
) {
866 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
);
870 ctm
= fz_rotate (pdim
->rotate
);
872 text
= fz_new_text_span ();
873 tdev
= fz_new_text_device (text
);
874 error
= pdf_run_page (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
875 if (error
) die (error
);
876 fz_free_device (tdev
);
879 for (span
= text
; span
; span
= span
->next
) {
882 pspan
= malloc (sizeof (void *) * nspans
);
884 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
886 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
889 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
891 j
= forward
? 0 : nspans
- 1;
896 j
+= forward
? 1 : -1;
898 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
900 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
905 if (span
->text
[i
].bbox
.y0
> y
- 1) {
909 if (span
->text
[i
].c
< 256) {
910 *p
++ = span
->text
[i
].c
;
921 ret
= regexec (re
, buf
, 1, &rm
, 0);
923 if (ret
!= REG_NOMATCH
) {
926 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
928 "T regexec error `%.*s'",
930 fz_free_text_span (text
);
931 pdf_free_page (drawpage
);
939 fz_point p1
, p2
, p3
, p4
;
941 xoff
= pdim
->left
- pdim
->bbox
.x0
;
942 yoff
= -pdim
->bbox
.y0
;
944 sb
= &span
->text
[rm
.rm_so
].bbox
;
945 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
956 p1
= fz_transform_point (ctm
, p1
);
957 p2
= fz_transform_point (ctm
, p2
);
958 p3
= fz_transform_point (ctm
, p3
);
959 p4
= fz_transform_point (ctm
, p4
);
962 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
964 p1
.x
+ xoff
, p1
.y
+ yoff
,
965 p2
.x
+ xoff
, p2
.y
+ yoff
,
966 p3
.x
+ xoff
, p3
.y
+ yoff
,
967 p4
.x
+ xoff
, p4
.y
+ yoff
);
969 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
970 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
974 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
976 p1
.x
+ xoff
, p1
.y
+ yoff
,
977 p2
.x
+ xoff
, p2
.y
+ yoff
,
978 p3
.x
+ xoff
, p3
.y
+ yoff
,
979 p4
.x
+ xoff
, p4
.y
+ yoff
);
992 fz_free_text_span (text
);
993 pdf_free_page (drawpage
);
998 printd (state
.sock
, "T no matches %f sec", end
- start
);
1000 printd (state
.sock
, "D");
1009 mainloop (void *unused
)
1012 int len
, ret
, oldlen
= 0;
1015 len
= readlen (state
.sock
);
1017 errx (1, "readlen returned 0");
1020 if (oldlen
< len
+ 1) {
1021 p
= realloc (p
, len
+ 1);
1023 err (1, "realloc %d failed", len
+ 1);
1027 readdata (state
.sock
, p
, len
);
1030 if (!strncmp ("open", p
, 4)) {
1034 char *filename
= p
+ 5;
1036 filenamelen
= strlen (filename
);
1037 password
= filename
+ filenamelen
+ 1;
1039 openxref (filename
, password
);
1042 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
1046 obj
= fz_dict_gets (obj
, "Title");
1047 s
= pdf_to_utf8 (obj
);
1049 printd (state
.sock
, "t %s", s
);
1054 state
.needoutline
= 1;
1056 else if (!strncmp ("free", p
, 4)) {
1059 ret
= sscanf (p
+ 4, " %p", &ptr
);
1061 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
1066 else if (!strncmp ("search", p
, 6)) {
1067 int icase
, pageno
, y
, ret
, len2
, forward
;
1071 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1072 &icase
, &pageno
, &y
, &forward
, &len2
);
1074 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1077 pattern
= p
+ 6 + len2
;
1078 ret
= regcomp (&re
, pattern
,
1079 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1084 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1085 printd (state
.sock
, "T regcomp failed `%.*s'",
1086 (int) size
, errbuf
);
1089 search (&re
, pageno
, y
, forward
);
1093 else if (!strncmp ("geometry", p
, 8)) {
1096 printd (state
.sock
, "c");
1097 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1099 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1107 for (i
= 0; i
< state
.texcount
; ++i
) {
1108 state
.texowners
[i
].slice
= NULL
;
1113 unlock ("geometry");
1114 printd (state
.sock
, "C %d", state
.pagecount
);
1116 else if (!strncmp ("reinit", p
, 6)) {
1120 printd (state
.sock
, "c");
1121 ret
= sscanf (p
+ 6, " %f %d", &rotate
, &proportional
);
1123 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
1126 state
.rotate
= rotate
;
1127 state
.proportional
= proportional
;
1128 state
.pagedimcount
= 0;
1129 free (state
.pagedims
);
1130 state
.pagedims
= NULL
;
1135 freepage (state
.pig
);
1139 printd (state
.sock
, "C %d", state
.pagecount
);
1141 else if (!strncmp ("render", p
, 6)) {
1142 int pageno
, pindex
, w
, h
, ret
;
1145 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
1147 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1151 page
= render (pageno
, pindex
);
1154 printd (state
.sock
, "r %d %d %d %d %d %d %p",
1163 else if (!strncmp ("info", p
, 4)) {
1166 else if (!strncmp ("interrupt", p
, 9)) {
1167 printd (state
.sock
, "V interrupted");
1170 errx (1, "unknown command %.*s", len
, p
);
1176 static void showsel (struct page
*page
, int oy
)
1181 struct mark first
, last
;
1183 first
= page
->fmark
;
1186 if (!first
.span
|| !last
.span
) return;
1188 glEnable (GL_BLEND
);
1189 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1190 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1192 ox
= -page
->pixmap
->x
+ page
->pagedim
.left
;
1193 oy
= -page
->pixmap
->y
+ oy
;
1194 for (span
= first
.span
; span
; span
= span
->next
) {
1197 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1202 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1203 j
= MIN (first
.i
, last
.i
);
1204 k
= MAX (first
.i
, last
.i
);
1206 else if (span
== first
.span
) {
1209 else if (span
== last
.span
) {
1213 for (i
= j
; i
<= k
; ++i
) {
1214 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1216 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1223 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1225 if (span
== last
.span
) break;
1227 glDisable (GL_BLEND
);
1230 static void highlightlinks (struct page
*page
, int yoff
)
1235 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1236 glEnable (GL_LINE_STIPPLE
);
1237 glLineStipple (0.5, 0xcccc);
1239 xoff
= page
->pagedim
.left
- page
->pixmap
->x
;
1240 yoff
-= page
->pixmap
->y
;
1243 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1244 fz_point p1
, p2
, p3
, p4
;
1245 fz_matrix ctm
= page
->pagedim
.ctm
;
1247 p1
.x
= link
->rect
.x0
;
1248 p1
.y
= link
->rect
.y0
;
1250 p2
.x
= link
->rect
.x1
;
1251 p2
.y
= link
->rect
.y0
;
1253 p3
.x
= link
->rect
.x1
;
1254 p3
.y
= link
->rect
.y1
;
1256 p4
.x
= link
->rect
.x0
;
1257 p4
.y
= link
->rect
.y1
;
1259 p1
= fz_transform_point (ctm
, p1
);
1260 p2
= fz_transform_point (ctm
, p2
);
1261 p3
= fz_transform_point (ctm
, p3
);
1262 p4
= fz_transform_point (ctm
, p4
);
1264 switch (link
->kind
) {
1265 case PDF_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1266 case PDF_LINK_URI
: glColor3ub (0, 0, 255); break;
1267 default: glColor3ub (0, 0, 0); break;
1270 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1271 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1272 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1273 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1277 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1278 glDisable (GL_LINE_STIPPLE
);
1281 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1286 struct slice
*slice
= &page
->slices
[slicenum
];
1288 w
= page
->pixmap
->w
;
1290 ARSERT (w
== slice
->w
);
1291 if (slice
->texindex
!= -1
1292 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1293 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1297 int index
= (state
.texindex
++ % state
.texcount
);
1300 for (i
= 0; i
< slicenum
; ++i
) {
1301 offset
+= w
* page
->slices
[i
].h
* 4;
1304 if (state
.texowners
[index
].w
== slice
->w
) {
1305 if (state
.texowners
[index
].h
>= slice
->h
) {
1309 state
.texowners
[index
].h
= slice
->h
;
1313 state
.texowners
[index
].h
= slice
->h
;
1316 state
.texowners
[index
].slice
= slice
;
1317 state
.texowners
[index
].w
= slice
->w
;
1318 slice
->texindex
= index
;
1320 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1324 GLenum err
= glGetError ();
1325 if (err
!= GL_NO_ERROR
) {
1326 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1330 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1338 page
->pixmap
->samples
+ offset
1341 GLenum err
= glGetError ();
1342 if (err
!= GL_NO_ERROR
) {
1343 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1349 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1357 page
->pixmap
->samples
+ offset
1364 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1365 subimage
? "sub" : "img",
1366 page
->pageno
, slicenum
,
1368 state
.texids
[slice
->texindex
],
1373 CAMLprim value
ml_draw (value args_v
, value ptr_v
)
1375 CAMLparam2 (args_v
, ptr_v
);
1376 int dispy
= Int_val (Field (args_v
, 0));
1377 int w
= Int_val (Field (args_v
, 1));
1378 int h
= Int_val (Field (args_v
, 2));
1379 int py
= Int_val (Field (args_v
, 3));
1380 int hlinks
= Bool_val (Field (args_v
, 4));
1381 char *s
= String_val (ptr_v
);
1386 int yoff
= dispy
- py
;
1388 ret
= sscanf (s
, "%p", &ptr
);
1390 errx (1, "cannot parse pointer `%s'", s
);
1394 w
= page
->pixmap
->w
;
1396 ARSERT (h
>= 0 && "ml_draw wrong h");
1397 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1399 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1401 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1402 struct slice
*slice
= &page
->slices
[slicenum
];
1403 if (slice
->h
> py
) {
1409 h
= MIN (state
.h
, h
);
1412 struct slice
*slice
= &page
->slices
[slicenum
];
1414 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1416 th
= MIN (h
, slice
->h
- py
);
1417 upload2 (page
, slicenum
, "upload");
1419 left
= page
->pagedim
.left
;
1422 glTexCoord2i (0, py
);
1423 glVertex2i (left
, dispy
);
1425 glTexCoord2i (w
, py
);
1426 glVertex2i (left
+w
, dispy
);
1428 glTexCoord2i (w
, py
+th
);
1429 glVertex2i (left
+w
, dispy
+ th
);
1431 glTexCoord2i (0, py
+th
);
1432 glVertex2i (left
, dispy
+ th
);
1442 showsel (page
, yoff
);
1443 if (hlinks
) highlightlinks (page
, yoff
);
1444 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1446 CAMLreturn (Val_unit
);
1449 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1455 p
.x
= x
+ page
->pixmap
->x
;
1456 p
.y
= y
+ page
->pixmap
->y
;
1458 ctm
= fz_invert_matrix (page
->pagedim
.ctm
);
1459 p
= fz_transform_point (ctm
, p
);
1461 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1462 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1463 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1471 static void ensuretext (struct page
*page
)
1477 page
->text
= fz_new_text_span ();
1478 tdev
= fz_new_text_device (page
->text
);
1479 error
= pdf_run_page (state
.xref
, page
->drawpage
, tdev
,
1481 if (error
) die (error
);
1482 fz_free_device (tdev
);
1486 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1488 CAMLparam3 (ptr_v
, x_v
, y_v
);
1489 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1492 char *s
= String_val (ptr_v
);
1494 ret_v
= Val_int (0);
1495 if (trylock ("ml_whatsunder")) {
1499 page
= parse_pointer ("ml_whatsunder", s
);
1500 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1502 switch (link
->kind
) {
1513 if (fz_is_array (link
->dest
)) {
1514 obj
= fz_array_get (link
->dest
, 0);
1515 if (fz_is_indirect (obj
)) {
1516 pageno
= pdf_find_page_number (state
.xref
, obj
);
1518 else if (fz_is_int (obj
)) {
1519 pageno
= fz_to_int (obj
);
1522 if (fz_array_len (link
->dest
) > 3) {
1525 xo
= fz_array_get (link
->dest
, 2);
1526 yo
= fz_array_get (link
->dest
, 3);
1527 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
1528 p
.x
= fz_to_int (xo
);
1529 p
.y
= fz_to_int (yo
);
1530 p
= fz_transform_point (page
->pagedim
.ctm
, p
);
1535 pageno
= pdf_find_page_number (state
.xref
, link
->dest
);
1537 tup_v
= caml_alloc_tuple (2);
1538 ret_v
= caml_alloc_small (1, 1);
1539 Field (tup_v
, 0) = Val_int (pageno
);
1540 Field (tup_v
, 1) = Val_int (p
.y
);
1541 Field (ret_v
, 0) = tup_v
;
1546 str_v
= caml_copy_string (fz_to_str_buf (link
->dest
));
1547 ret_v
= caml_alloc_small (1, 0);
1548 Field (ret_v
, 0) = str_v
;
1552 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1561 x
= Int_val (x_v
) + page
->pixmap
->x
;
1562 y
= Int_val (y_v
) + page
->pixmap
->y
;
1564 for (span
= page
->text
; span
; span
= span
->next
) {
1565 for (i
= 0; i
< span
->len
; ++i
) {
1567 b
= &span
->text
[i
].bbox
;
1568 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1570 span
->font
&& span
->font
->name
1572 : "Span has no font name"
1574 #ifdef FT_FREETYPE_H
1575 FT_FaceRec
*face
= span
->font
->ft_face
;
1576 if (face
&& face
->family_name
) {
1578 char *n1
= face
->family_name
;
1579 size_t l1
= strlen (n1
);
1580 size_t l2
= strlen (n2
);
1582 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
1583 s
= malloc (l1
+ l2
+ 2);
1587 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
1588 str_v
= caml_copy_string (s
);
1594 str_v
= caml_copy_string (n2
);
1597 str_v
= caml_copy_string (n2
);
1599 ret_v
= caml_alloc_small (1, 2);
1600 Field (ret_v
, 0) = str_v
;
1607 unlock ("ml_whatsunder");
1613 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1615 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1619 struct mark first
, last
;
1620 int i
, x0
, x1
, y0
, y1
, oy
, left
;
1621 char *s
= String_val (ptr_v
);
1623 if (trylock ("ml_seltext")) {
1627 page
= parse_pointer ("ml_seltext", s
);
1630 oy
= Int_val (oy_v
);
1631 x0
= Int_val (Field (rect_v
, 0));
1632 y0
= Int_val (Field (rect_v
, 1));
1633 x1
= Int_val (Field (rect_v
, 2));
1634 y1
= Int_val (Field (rect_v
, 3));
1636 left
= page
->pagedim
.left
;
1638 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1639 glColor3ub (128, 128, 128);
1640 glRecti (x0
, y0
, x1
, y1
);
1641 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1644 x0
+= page
->pixmap
->x
- left
;
1645 y0
+= page
->pixmap
->y
- oy
;
1646 x1
+= page
->pixmap
->x
- left
;
1647 y1
+= page
->pixmap
->y
- oy
;
1652 last
.i
= first
.i
= 0;
1653 first
.span
= page
->text
;
1654 for (span
= page
->text
; span
; span
= span
->next
) {
1655 for (i
= 0; i
< span
->len
; ++i
) {
1656 b
= &span
->text
[i
].bbox
;
1659 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1664 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1669 if (0 && selected
) {
1670 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1671 glColor3ub (128, 128, 128);
1672 glRecti (b
->x0
+left
, b
->y0
, b
->x1
+left
, b
->y1
);
1673 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1678 if (y1
< y0
|| x1
< x0
) {
1681 if (first
.span
== last
.span
) {
1686 for (span
= first
.span
; span
&& span
!= last
.span
;
1687 span
= span
->next
) {
1700 first
.span
= last
.span
;
1706 page
->fmark
= first
;
1709 unlock ("ml_seltext");
1712 CAMLreturn (Val_unit
);
1715 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
1720 for (i
= a
; i
<= b
; ++i
) {
1721 len
= runetochar (buf
, &span
->text
[i
].c
);
1722 ret
= fwrite (buf
, len
, 1, f
);
1725 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1726 len
, ret
, strerror (errno
));
1733 CAMLprim value
ml_copysel (value ptr_v
)
1738 char *s
= String_val (ptr_v
);
1740 if (trylock ("ml_copysel")) {
1747 if (state
.xselpipe
) {
1748 int ret
= pclose (state
.xselpipe
);
1750 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1753 state
.xselpipe
= NULL
;
1756 printf ("========================================\n");
1762 page
= parse_pointer ("ml_sopysel", s
);
1764 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1765 printd (state
.sock
, "T nothing to copy");
1771 if (!state
.xselpipe
) {
1772 state
.xselpipe
= popen ("xsel -i", "w");
1773 if (!state
.xselpipe
) {
1774 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1786 for (span
= page
->fmark
.span
;
1787 span
&& span
!= page
->lmark
.span
->next
;
1788 span
= span
->next
) {
1789 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1790 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1791 if (pipespan (f
, span
, a
, b
)) {
1795 if (putc ('\n', f
) == EOF
) {
1796 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1802 page
->lmark
.span
= NULL
;
1803 page
->fmark
.span
= NULL
;
1807 unlock ("ml_copysel");
1810 CAMLreturn (Val_unit
);
1813 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
1815 CAMLparam1 (pagedimno_v
);
1817 int pagedimno
= Int_val (pagedimno_v
);
1820 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1821 if (trylock ("ml_getpdimrect")) {
1822 box
= fz_empty_rect
;
1825 box
= state
.pagedims
[pagedimno
].box
;
1826 unlock ("ml_getpdimrect");
1829 Store_double_field (ret_v
, 0, box
.x0
);
1830 Store_double_field (ret_v
, 1, box
.x1
);
1831 Store_double_field (ret_v
, 2, box
.y0
);
1832 Store_double_field (ret_v
, 3, box
.y1
);
1837 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
1839 CAMLparam3 (winw_v
, winh_v
, dw_v
);
1843 double maxw
= 0.0, maxh
= 0.0;
1845 double winw
= Int_val (winw_v
);
1846 double winh
= Int_val (winh_v
);
1847 double dw
= Int_val (dw_v
);
1848 double pw
= 1.0, ph
= 1.0, num
, den
;
1850 if (trylock ("ml_zoom_for_height")) {
1854 if (state
.proportional
) {
1855 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1858 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1859 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1862 maxw
= MAX (w
, maxw
);
1866 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1867 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
1869 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1870 y0
= MIN (p
->box
.y0
, p
->box
.y1
);
1871 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1872 y1
= MAX (p
->box
.y0
, p
->box
.y1
);
1877 if (state
.proportional
) {
1879 scaledh
= h
* scale
;
1886 if (scaledh
> maxh
) {
1893 num
= (winh
* pw
) + (ph
* dw
);
1897 unlock ("ml_zoom_for_height");
1899 ret_v
= caml_copy_double (zoom
);
1905 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
1907 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
1908 int pt
= Int_val(pt_v
);
1909 int x
= Int_val (x_v
);
1910 int y
= Int_val (y_v
);
1913 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
1914 CAMLreturn (caml_copy_double (w
));
1917 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
1919 CAMLparam2 (pt_v
, string_v
);
1921 int pt
= Int_val (pt_v
);
1924 w
= measure_string (state
.face
, pt
, String_val (string_v
));
1925 CAMLreturn (caml_copy_double (w
));
1928 CAMLprim value
ml_init (value sock_v
, value params_v
)
1930 CAMLparam2 (sock_v
, params_v
);
1936 state
.rotate
= Int_val (Field (params_v
, 0));
1937 state
.proportional
= Bool_val (Field (params_v
, 1));
1938 state
.texcount
= Int_val (Field (params_v
, 2));
1939 state
.sliceheight
= Int_val (Field (params_v
, 3));
1940 fontpath
= String_val (Field (params_v
, 4));
1941 state
.texform
= GL_RGBA
;
1942 state
.texty
= GL_UNSIGNED_BYTE
;
1945 state
.face
= load_font (fontpath
);
1949 void *base
= pdf_find_builtin_font ("Courier-Bold", &len
);
1951 state
.face
= load_builtin_font (base
, len
);
1953 if (!state
.face
) _exit (1);
1956 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1957 if (!state
.texids
) {
1958 err (1, "calloc texids " FMT_s
,
1959 state
.texcount
* sizeof (*state
.texids
));
1962 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1963 if (!state
.texowners
) {
1964 err (1, "calloc texowners " FMT_s
,
1965 state
.texcount
* sizeof (*state
.texowners
));
1968 glGenTextures (state
.texcount
, state
.texids
);
1971 state
.sock
= Socket_val (sock_v
);
1973 state
.sock
= Int_val (sock_v
);
1977 InitializeCriticalSection (&critsec
);
1978 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1979 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1980 errx (1, "CreateThread failed: %lx", GetLastError ());
1983 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1985 errx (1, "pthread_create: %s", strerror (ret
));
1989 CAMLreturn (Val_unit
);