1 /* lots of code c&p-ed directly from mupdf */
3 #define WIN32_LEAN_AND_MEAN
6 #define fionread_arg long
14 #pragma warning (disable:4244)
15 #pragma warning (disable:4996)
16 #pragma warning (disable:4995)
24 static void __declspec (noreturn
) err (int exitcode
, const char *fmt
, ...)
31 vfprintf (stderr
, fmt
, ap
);
33 fprintf (stderr
, ": %s\n", strerror (errno
));
36 static void __declspec (noreturn
) errx (int exitcode
, const char *fmt
, ...)
41 vfprintf (stderr
, fmt
, ap
);
46 static void __declspec (noreturn
) sockerr (int exitcode
, const char *fmt
, ...)
51 vfprintf (stderr
, fmt
, ap
);
53 fprintf (stderr
, ": wsaerror 0x%x\n", WSAGetLastError ());
59 #define fionread_arg int
60 #define ioctlsocket ioctl
76 #include <sys/types.h>
77 #include <sys/socket.h>
78 #include <sys/ioctl.h>
82 #include <OpenGL/gl.h>
87 #ifndef GL_TEXTURE_RECTANGLE_ARB
88 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
91 #include <caml/fail.h>
92 #include <caml/alloc.h>
93 #include <caml/memory.h>
94 #include <caml/unixsupport.h>
100 #define lprintf printf
106 #include FT_FREETYPE_H
109 #define ARSERT(cond) for (;;) { \
111 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
136 struct pagedim pagedim
;
141 struct slice slices
[];
144 #if !defined _WIN32 && !defined __APPLE__
152 struct pagedim
*pagedims
;
156 fz_glyph_cache
*cache
;
184 static CRITICAL_SECTION critsec
;
186 static void lock (void *unused
)
189 EnterCriticalSection (&critsec
);
192 static void unlock (void *unused
)
195 LeaveCriticalSection (&critsec
);
198 static int trylock (void *unused
)
200 return TryEnterCriticalSection (&critsec
) == 0;
203 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
205 static void lock (const char *cap
)
207 int ret
= pthread_mutex_lock (&mutex
);
209 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
213 static void unlock (const char *cap
)
215 int ret
= pthread_mutex_unlock (&mutex
);
217 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
221 static int trylock (const char *cap
)
223 int ret
= pthread_mutex_trylock (&mutex
);
225 if (ret
&& ret
!= EBUSY
) {
226 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
232 static void *parse_pointer (const char *cap
, const char *s
)
237 ret
= sscanf (s
, "%p", &ptr
);
239 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
244 static int hasdata (int sock
)
248 ret
= ioctlsocket (sock
, FIONREAD
, &avail
);
249 if (ret
) sockerr (1, "hasdata: FIONREAD error ret=%d", ret
);
253 static double now (void)
257 if (gettimeofday (&tv
, NULL
)) {
258 err (1, "gettimeofday");
260 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
263 static void readdata (int fd
, char *p
, int size
)
267 n
= recv (fd
, p
, size
, 0);
269 if (!n
) errx (1, "EOF while reading");
270 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
274 static void writedata (int fd
, char *p
, int size
)
279 buf
[0] = (size
>> 24) & 0xff;
280 buf
[1] = (size
>> 16) & 0xff;
281 buf
[2] = (size
>> 8) & 0xff;
282 buf
[3] = (size
>> 0) & 0xff;
284 n
= send (fd
, buf
, 4, 0);
286 if (!n
) errx (1, "EOF while writing length");
287 sockerr (1, "send " FMT_ss
, n
);
290 n
= send (fd
, p
, size
, 0);
292 if (!n
) errx (1, "EOF while writing data");
293 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
299 __attribute__ ((format (printf
, 2, 3)))
301 printd (int fd
, const char *fmt
, ...)
309 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
312 len
= vsnprintf (buf
, size
, fmt
, ap
);
315 if (len
> -1 && len
< size
) {
316 writedata (fd
, buf
, len
);
326 buf
= realloc (buf
, size
);
331 static void die (fz_error error
)
333 fz_catch (error
, "aborting");
335 pdf_free_xref (state
.xref
);
339 static void openxref (char *filename
, char *password
)
344 for (i
= 0; i
< state
.texcount
; ++i
) {
345 state
.texowners
[i
].slice
= NULL
;
349 fz_free_glyph_cache (state
.cache
);
352 state
.cache
= fz_new_glyph_cache ();
354 errx (1, "fz_newglyph_cache failed");
358 if (state
.xref
->store
) {
359 pdf_free_store (state
.xref
->store
);
360 state
.xref
->store
= NULL
;
362 pdf_free_xref (state
.xref
);
366 if (state
.pagedims
) {
367 free (state
.pagedims
);
368 state
.pagedims
= NULL
;
370 state
.pagedimcount
= 0;
372 error
= pdf_open_xref (&state
.xref
, filename
, password
);
377 error
= pdf_load_page_tree (state
.xref
);
382 state
.pagecount
= pdf_count_pages (state
.xref
);
385 static int readlen (int fd
)
390 n
= recv (fd
, p
, 4, 0);
392 if (!n
) errx (1, "EOF while reading length");
393 sockerr (1, "recv " FMT_ss
, n
);
396 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
399 static void unlinkpage (struct page
*page
)
403 for (i
= 0; i
< page
->slicecount
; ++i
) {
404 struct slice
*s
= &page
->slices
[i
];
405 if (s
->texindex
!= -1) {
406 if (state
.texowners
[s
->texindex
].slice
== s
) {
407 state
.texowners
[s
->texindex
].slice
= NULL
;
408 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
409 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
415 static void freepage (struct page
*page
)
417 fz_drop_pixmap (page
->pixmap
);
422 fz_free_text_span (page
->text
);
424 if (page
->drawpage
) {
425 pdf_free_page (page
->drawpage
);
431 static void subdivide (struct page
*p
)
434 int h
= p
->pixmap
->h
;
435 int th
= MIN (h
, state
.sliceheight
);
437 for (i
= 0; i
< p
->slicecount
; ++i
) {
438 struct slice
*s
= &p
->slices
[i
];
446 static int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
448 return p1
->rotate
== p2
->rotate
449 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
450 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
456 static int cacheline32bytes
;
458 static void __attribute__ ((constructor
)) clcheck (void)
460 char **envp
= environ
;
465 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
467 cacheline32bytes
= auxv
[1] == 32;
473 static void __attribute__ ((optimize ("O"))) clearpixmap (fz_pixmap
*pixmap
)
475 if (cacheline32bytes
) {
476 intptr_t a1
, a2
, diff
;
477 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
478 vector
unsigned char v
= vec_splat_u8 (-1);
479 vector
unsigned char *p
;
481 a1
= a2
= (intptr_t) pixmap
->samples
;
482 a2
= (a1
+ 31) & ~31;
487 while (a1
!= a2
) *(char *) a1
++ = 0xff;
488 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
489 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
491 vec_st (v
, i
+ 16, p
);
493 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
495 else fz_clear_pixmap_with_color (pixmap
, 0xff);
498 #define clearpixmap(p) fz_clear_pixmap_with_color (p, 0xff)
501 static void *render (int pageno
, int pindex
)
505 struct page
*page
= NULL
;
509 struct pagedim
*pagedim
;
512 printd (state
.sock
, "V rendering %d", pageno
);
514 pagedim
= &state
.pagedims
[pindex
];
515 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
516 + state
.sliceheight
- 1) / state
.sliceheight
;
517 slicecount
+= slicecount
== 0;
520 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
523 fz_free_text_span (page
->text
);
526 if (page
->drawpage
) {
527 pdf_free_page (page
->drawpage
);
528 page
->drawpage
= NULL
;
532 freepage (state
.pig
);
536 page
= calloc (sizeof (*page
)
537 + (slicecount
* sizeof (struct slice
)), 1);
539 err (1, "calloc page %d\n", pageno
);
541 page
->pixmap
= fz_new_pixmap_with_rect (fz_device_rgb
, pagedim
->bbox
);
544 page
->slicecount
= slicecount
;
546 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
- 1);
550 clearpixmap (page
->pixmap
);
552 idev
= fz_new_draw_device (state
.cache
, page
->pixmap
);
554 die (fz_throw ("fz_newdrawdevice failed"));
555 error
= pdf_run_page (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
557 die (fz_rethrow (error
, "pdf_runpage failed"));
558 fz_free_device (idev
);
560 page
->drawpage
= drawpage
;
561 page
->pagedim
= *pagedim
;
562 page
->pageno
= pageno
;
566 pdf_age_store (state
.xref
->store
, 3);
568 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
573 static void initpdims (void)
579 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
583 fz_obj
*obj
, *pageobj
;
585 pageobj
= state
.xref
->page_objs
[pageno
];
587 obj
= fz_dict_gets (pageobj
, "CropBox");
588 if (!fz_is_array (obj
)) {
589 obj
= fz_dict_gets (pageobj
, "MediaBox");
590 if (!fz_is_array (obj
)) {
591 die (fz_throw ("cannot find page bounds %d (%d Rd)",
592 fz_to_num (pageobj
), fz_to_gen (pageobj
)));
595 box
= pdf_to_rect (obj
);
597 obj
= fz_dict_gets (pageobj
, "Rotate");
598 if (fz_is_int (obj
)) {
599 rotate
= fz_to_int (obj
);
604 rotate
+= state
.rotate
;
606 p
= &state
.pagedims
[state
.pagedimcount
- 1];
607 if ((state
.pagedimcount
== 0)
608 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
611 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
612 state
.pagedims
= realloc (state
.pagedims
, size
);
613 if (!state
.pagedims
) {
614 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
615 size
, state
.pagedimcount
+ 1);
617 p
= &state
.pagedims
[state
.pagedimcount
++];
624 printd (state
.sock
, "T Processed %d pages in %f seconds",
625 state
.pagecount
, end
- start
);
628 static void layout (void)
633 double zoom
, w
, maxw
;
634 struct pagedim
*p
= state
.pagedims
;
636 if (state
.proportional
) {
637 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
638 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
639 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
640 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
641 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
644 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
645 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
646 box2
= fz_transform_rect (ctm
, box
);
647 w
= box2
.x1
- box2
.x0
;
648 maxw
= MAX (w
, maxw
);
653 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
654 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
655 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
656 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
657 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
660 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
661 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
662 box2
= fz_transform_rect (ctm
, box
);
663 w
= box2
.x1
- box2
.x0
;
665 if (state
.proportional
) {
666 double scale
= w
/ maxw
;
667 zoom
= (state
.w
/ w
) * scale
;
673 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
674 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
675 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
676 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
677 p
->bbox
= fz_round_rect (fz_transform_rect (ctm
, box
));
678 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
679 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
682 while (p
-- != state
.pagedims
) {
683 printd (state
.sock
, "l %d %d %d %d",
684 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
,
689 static void recurse_outline (pdf_outline
*outline
, int level
)
697 if (!outline
->link
) goto next
;
699 obj
= outline
->link
->dest
;
700 if (fz_is_indirect (obj
)) {
701 obj
= fz_resolve_indirect (obj
);
703 if (fz_is_array (obj
)) {
706 obj2
= fz_array_get (obj
, 0);
707 if (fz_is_int (obj2
)) {
708 pageno
= fz_to_int (obj2
);
711 pageno
= pdf_find_page_number (state
.xref
, obj2
);
714 if (fz_array_len (obj
) > 3) {
718 xo
= fz_array_get (obj
, 2);
719 yo
= fz_array_get (obj
, 3);
720 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
721 struct pagedim
*pagedim
= state
.pagedims
;
723 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
724 if (state
.pagedims
[i
].pageno
> pageno
)
726 pagedim
= &state
.pagedims
[i
];
728 p
.x
= fz_to_int (xo
);
729 p
.y
= fz_to_int (yo
);
730 p
= fz_transform_point (pagedim
->ctm
, p
);
731 h
= pagedim
->bbox
.y1
- pagedim
->bbox
.y0
;
737 pageno
= pdf_find_page_number (state
.xref
, outline
->link
->dest
);
740 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
742 printd (state
.sock
, "o %d %d %d %d %s",
743 level
, pageno
, top
, h
, outline
->title
);
746 if (outline
->child
) {
747 recurse_outline (outline
->child
, level
+ 1);
749 outline
= outline
->next
;
753 static void process_outline (void)
755 pdf_outline
*outline
;
757 if (!state
.needoutline
) return;
759 state
.needoutline
= 0;
760 outline
= pdf_load_outline (state
.xref
);
762 recurse_outline (outline
, 0);
763 pdf_free_outline (outline
);
767 static int comparespans (const void *l
, const void *r
)
769 fz_text_span
const *const*ls
= l
;
770 fz_text_span
const *const*rs
= r
;
771 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
774 /* wishful thinking function */
775 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
785 fz_text_span
*text
, *span
, **pspan
;
786 struct pagedim
*pdim
, *pdimprev
;
793 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
795 pdf_age_store (state
.xref
->store
, 3);
797 if (hasdata (state
.sock
)) {
798 printd (state
.sock
, "T attention requested aborting search at %d",
803 printd (state
.sock
, "T searching in page %d", pageno
);
807 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
808 pdim
= &state
.pagedims
[i
];
809 if (pdim
->pageno
== pageno
) {
812 if (pdim
->pageno
> pageno
) {
821 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
);
825 ctm
= fz_rotate (pdim
->rotate
);
827 text
= fz_new_text_span ();
828 tdev
= fz_new_text_device (text
);
829 error
= pdf_run_page (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
830 if (error
) die (error
);
831 fz_free_device (tdev
);
834 for (span
= text
; span
; span
= span
->next
) {
837 pspan
= malloc (sizeof (void *) * nspans
);
839 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
841 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
844 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
846 j
= forward
? 0 : nspans
- 1;
851 j
+= forward
? 1 : -1;
853 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
855 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
860 if (span
->text
[i
].bbox
.y0
> y
- 1) {
864 if (span
->text
[i
].c
< 256) {
865 *p
++ = span
->text
[i
].c
;
876 ret
= regexec (re
, buf
, 1, &rm
, 0);
878 if (ret
!= REG_NOMATCH
) {
881 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
883 "T regexec error `%.*s'",
885 fz_free_text_span (text
);
886 pdf_free_page (drawpage
);
894 fz_point p1
, p2
, p3
, p4
;
896 xoff
= pdim
->left
- pdim
->bbox
.x0
;
897 yoff
= -pdim
->bbox
.y0
;
899 sb
= &span
->text
[rm
.rm_so
].bbox
;
900 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
911 p1
= fz_transform_point (ctm
, p1
);
912 p2
= fz_transform_point (ctm
, p2
);
913 p3
= fz_transform_point (ctm
, p3
);
914 p4
= fz_transform_point (ctm
, p4
);
917 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
919 p1
.x
+ xoff
, p1
.y
+ yoff
,
920 p2
.x
+ xoff
, p2
.y
+ yoff
,
921 p3
.x
+ xoff
, p3
.y
+ yoff
,
922 p4
.x
+ xoff
, p4
.y
+ yoff
);
924 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
925 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
929 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
931 p1
.x
+ xoff
, p1
.y
+ yoff
,
932 p2
.x
+ xoff
, p2
.y
+ yoff
,
933 p3
.x
+ xoff
, p3
.y
+ yoff
,
934 p4
.x
+ xoff
, p4
.y
+ yoff
);
947 fz_free_text_span (text
);
948 pdf_free_page (drawpage
);
953 printd (state
.sock
, "T no matches %f sec", end
- start
);
955 printd (state
.sock
, "D");
964 mainloop (void *unused
)
967 int len
, ret
, oldlen
= 0;
970 len
= readlen (state
.sock
);
972 errx (1, "readlen returned 0");
975 if (oldlen
< len
+ 1) {
976 p
= realloc (p
, len
+ 1);
978 err (1, "realloc %d failed", len
+ 1);
982 readdata (state
.sock
, p
, len
);
985 if (!strncmp ("open", p
, 4)) {
989 char *filename
= p
+ 5;
991 filenamelen
= strlen (filename
);
992 password
= filename
+ filenamelen
+ 1;
994 openxref (filename
, password
);
997 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
1001 obj
= fz_dict_gets (obj
, "Title");
1002 s
= pdf_to_utf8 (obj
);
1004 printd (state
.sock
, "t %s", s
);
1009 state
.needoutline
= 1;
1011 else if (!strncmp ("free", p
, 4)) {
1014 ret
= sscanf (p
+ 4, " %p", &ptr
);
1016 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
1021 else if (!strncmp ("search", p
, 6)) {
1022 int icase
, pageno
, y
, ret
, len2
, forward
;
1026 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1027 &icase
, &pageno
, &y
, &forward
, &len2
);
1029 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1032 pattern
= p
+ 6 + len2
;
1033 ret
= regcomp (&re
, pattern
,
1034 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1039 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1040 printd (state
.sock
, "T regcomp failed `%.*s'",
1041 (int) size
, errbuf
);
1044 search (&re
, pageno
, y
, forward
);
1048 else if (!strncmp ("geometry", p
, 8)) {
1051 printd (state
.sock
, "c");
1052 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1054 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1062 for (i
= 0; i
< state
.texcount
; ++i
) {
1063 state
.texowners
[i
].slice
= NULL
;
1068 unlock ("geometry");
1069 printd (state
.sock
, "C %d", state
.pagecount
);
1071 else if (!strncmp ("reinit", p
, 6)) {
1075 printd (state
.sock
, "c");
1076 ret
= sscanf (p
+ 6, " %f %d", &rotate
, &proportional
);
1078 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
1081 state
.rotate
= rotate
;
1082 state
.proportional
= proportional
;
1083 state
.pagedimcount
= 0;
1084 free (state
.pagedims
);
1085 state
.pagedims
= NULL
;
1090 freepage (state
.pig
);
1094 printd (state
.sock
, "C %d", state
.pagecount
);
1096 else if (!strncmp ("render", p
, 6)) {
1097 int pageno
, pindex
, w
, h
, ret
;
1100 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
1102 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1106 page
= render (pageno
, pindex
);
1109 printd (state
.sock
, "r %d %d %d %d %d %d %p",
1118 else if (!strncmp ("interrupt", p
, 9)) {
1119 printd (state
.sock
, "V interrupted");
1122 errx (1, "unknown command %.*s", len
, p
);
1128 static void showsel (struct page
*page
, int oy
)
1133 struct mark first
, last
;
1135 first
= page
->fmark
;
1138 if (!first
.span
|| !last
.span
) return;
1140 glEnable (GL_BLEND
);
1141 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1142 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1144 ox
= -page
->pixmap
->x
+ page
->pagedim
.left
;
1145 oy
= -page
->pixmap
->y
+ oy
;
1146 for (span
= first
.span
; span
; span
= span
->next
) {
1149 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1154 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1155 j
= MIN (first
.i
, last
.i
);
1156 k
= MAX (first
.i
, last
.i
);
1158 else if (span
== first
.span
) {
1161 else if (span
== last
.span
) {
1165 for (i
= j
; i
<= k
; ++i
) {
1166 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1168 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1175 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1177 if (span
== last
.span
) break;
1179 glDisable (GL_BLEND
);
1182 static void highlightlinks (struct page
*page
, int yoff
)
1187 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1188 glEnable (GL_LINE_STIPPLE
);
1189 glLineStipple (0.5, 0xcccc);
1191 xoff
= -page
->pixmap
->x
;
1192 yoff
-= page
->pixmap
->y
;
1195 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1196 fz_point p1
, p2
, p3
, p4
;
1197 fz_matrix ctm
= page
->pagedim
.ctm
;
1199 p1
.x
= link
->rect
.x0
;
1200 p1
.y
= link
->rect
.y0
;
1202 p2
.x
= link
->rect
.x1
;
1203 p2
.y
= link
->rect
.y0
;
1205 p3
.x
= link
->rect
.x1
;
1206 p3
.y
= link
->rect
.y1
;
1208 p4
.x
= link
->rect
.x0
;
1209 p4
.y
= link
->rect
.y1
;
1211 p1
= fz_transform_point (ctm
, p1
);
1212 p2
= fz_transform_point (ctm
, p2
);
1213 p3
= fz_transform_point (ctm
, p3
);
1214 p4
= fz_transform_point (ctm
, p4
);
1216 switch (link
->kind
) {
1217 case PDF_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1218 case PDF_LINK_URI
: glColor3ub (0, 0, 255); break;
1219 default: glColor3ub (0, 0, 0); break;
1222 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1223 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1224 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1225 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1229 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1230 glDisable (GL_LINE_STIPPLE
);
1233 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1238 struct slice
*slice
= &page
->slices
[slicenum
];
1240 w
= page
->pixmap
->w
;
1242 ARSERT (w
== slice
->w
);
1243 if (slice
->texindex
!= -1
1244 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1245 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1249 int index
= (state
.texindex
++ % state
.texcount
);
1252 for (i
= 0; i
< slicenum
; ++i
) {
1253 offset
+= w
* page
->slices
[i
].h
* 4;
1256 if (state
.texowners
[index
].w
== slice
->w
) {
1257 if (state
.texowners
[index
].h
>= slice
->h
) {
1261 state
.texowners
[index
].h
= slice
->h
;
1265 state
.texowners
[index
].h
= slice
->h
;
1268 state
.texowners
[index
].slice
= slice
;
1269 state
.texowners
[index
].w
= slice
->w
;
1270 slice
->texindex
= index
;
1272 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1276 GLenum err
= glGetError ();
1277 if (err
!= GL_NO_ERROR
) {
1278 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1282 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1290 page
->pixmap
->samples
+ offset
1293 GLenum err
= glGetError ();
1294 if (err
!= GL_NO_ERROR
) {
1295 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1301 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1309 page
->pixmap
->samples
+ offset
1316 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1317 subimage
? "sub" : "img",
1318 page
->pageno
, slicenum
,
1320 state
.texids
[slice
->texindex
],
1325 CAMLprim value
ml_draw (value args_v
, value ptr_v
)
1327 CAMLparam2 (args_v
, ptr_v
);
1328 int dispy
= Int_val (Field (args_v
, 0));
1329 int w
= Int_val (Field (args_v
, 1));
1330 int h
= Int_val (Field (args_v
, 2));
1331 int py
= Int_val (Field (args_v
, 3));
1332 int hlinks
= Bool_val (Field (args_v
, 4));
1333 char *s
= String_val (ptr_v
);
1338 int yoff
= dispy
- py
;
1340 ret
= sscanf (s
, "%p", &ptr
);
1342 errx (1, "cannot parse pointer `%s'", s
);
1346 w
= page
->pixmap
->w
;
1348 ARSERT (h
>= 0 && "ml_draw wrong h");
1349 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1351 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1353 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1354 struct slice
*slice
= &page
->slices
[slicenum
];
1355 if (slice
->h
> py
) {
1361 h
= MIN (state
.h
, h
);
1364 struct slice
*slice
= &page
->slices
[slicenum
];
1366 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1368 th
= MIN (h
, slice
->h
- py
);
1369 upload2 (page
, slicenum
, "upload");
1371 left
= page
->pagedim
.left
;
1374 glTexCoord2i (0, py
);
1375 glVertex2i (left
, dispy
);
1377 glTexCoord2i (w
, py
);
1378 glVertex2i (left
+w
, dispy
);
1380 glTexCoord2i (w
, py
+th
);
1381 glVertex2i (left
+w
, dispy
+ th
);
1383 glTexCoord2i (0, py
+th
);
1384 glVertex2i (left
, dispy
+ th
);
1394 showsel (page
, yoff
);
1395 if (hlinks
) highlightlinks (page
, yoff
);
1396 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1398 CAMLreturn (Val_unit
);
1401 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1407 p
.x
= x
+ page
->pixmap
->x
;
1408 p
.y
= y
+ page
->pixmap
->y
;
1410 ctm
= fz_invert_matrix (page
->pagedim
.ctm
);
1411 p
= fz_transform_point (ctm
, p
);
1413 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1414 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1415 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1423 static void ensuretext (struct page
*page
)
1429 page
->text
= fz_new_text_span ();
1430 tdev
= fz_new_text_device (page
->text
);
1431 error
= pdf_run_page (state
.xref
, page
->drawpage
, tdev
,
1433 if (error
) die (error
);
1434 fz_free_device (tdev
);
1438 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1440 CAMLparam3 (ptr_v
, x_v
, y_v
);
1441 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1444 char *s
= String_val (ptr_v
);
1446 ret_v
= Val_int (0);
1447 if (trylock ("ml_whatsunder")) {
1451 page
= parse_pointer ("ml_whatsunder", s
);
1452 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1454 switch (link
->kind
) {
1465 if (fz_is_array (link
->dest
)) {
1466 obj
= fz_array_get (link
->dest
, 0);
1467 if (fz_is_indirect (obj
)) {
1468 pageno
= pdf_find_page_number (state
.xref
, obj
);
1470 else if (fz_is_int (obj
)) {
1471 pageno
= fz_to_int (obj
);
1474 if (fz_array_len (link
->dest
) > 3) {
1477 xo
= fz_array_get (link
->dest
, 2);
1478 yo
= fz_array_get (link
->dest
, 3);
1479 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
1480 p
.x
= fz_to_int (xo
);
1481 p
.y
= fz_to_int (yo
);
1482 p
= fz_transform_point (page
->pagedim
.ctm
, p
);
1487 pageno
= pdf_find_page_number (state
.xref
, link
->dest
);
1489 tup_v
= caml_alloc_tuple (2);
1490 ret_v
= caml_alloc_small (1, 1);
1491 Field (tup_v
, 0) = Val_int (pageno
);
1492 Field (tup_v
, 1) = Val_int (p
.y
);
1493 Field (ret_v
, 0) = tup_v
;
1498 str_v
= caml_copy_string (fz_to_str_buf (link
->dest
));
1499 ret_v
= caml_alloc_small (1, 0);
1500 Field (ret_v
, 0) = str_v
;
1504 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1513 x
= Int_val (x_v
) + page
->pixmap
->x
;
1514 y
= Int_val (y_v
) + page
->pixmap
->y
;
1516 for (span
= page
->text
; span
; span
= span
->next
) {
1517 for (i
= 0; i
< span
->len
; ++i
) {
1519 b
= &span
->text
[i
].bbox
;
1520 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1522 span
->font
&& span
->font
->name
1524 : "Span has no font name"
1526 #ifdef FT_FREETYPE_H
1527 FT_FaceRec
*face
= span
->font
->ft_face
;
1528 if (face
&& face
->family_name
) {
1530 char *n1
= face
->family_name
;
1531 size_t l1
= strlen (n1
);
1532 size_t l2
= strlen (n2
);
1534 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
1535 s
= malloc (l1
+ l2
+ 2);
1539 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
1540 str_v
= caml_copy_string (s
);
1546 str_v
= caml_copy_string (n2
);
1549 str_v
= caml_copy_string (n2
);
1551 ret_v
= caml_alloc_small (1, 2);
1552 Field (ret_v
, 0) = str_v
;
1559 unlock ("ml_whatsunder");
1565 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1567 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1571 struct mark first
, last
;
1572 int i
, x0
, x1
, y0
, y1
, oy
, left
;
1573 char *s
= String_val (ptr_v
);
1575 if (trylock ("ml_seltext")) {
1579 page
= parse_pointer ("ml_seltext", s
);
1582 oy
= Int_val (oy_v
);
1583 x0
= Int_val (Field (rect_v
, 0));
1584 y0
= Int_val (Field (rect_v
, 1));
1585 x1
= Int_val (Field (rect_v
, 2));
1586 y1
= Int_val (Field (rect_v
, 3));
1588 left
= page
->pagedim
.left
;
1590 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1591 glColor3ub (128, 128, 128);
1592 glRecti (x0
, y0
, x1
, y1
);
1593 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1596 x0
+= page
->pixmap
->x
- left
;
1597 y0
+= page
->pixmap
->y
- oy
;
1598 x1
+= page
->pixmap
->x
- left
;
1599 y1
+= page
->pixmap
->y
- oy
;
1604 last
.i
= first
.i
= 0;
1605 first
.span
= page
->text
;
1606 for (span
= page
->text
; span
; span
= span
->next
) {
1607 for (i
= 0; i
< span
->len
; ++i
) {
1608 b
= &span
->text
[i
].bbox
;
1611 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1616 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1621 if (0 && selected
) {
1622 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1623 glColor3ub (128, 128, 128);
1624 glRecti (b
->x0
+left
, b
->y0
, b
->x1
+left
, b
->y1
);
1625 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1630 if (y1
< y0
|| x1
< x0
) {
1633 if (first
.span
== last
.span
) {
1638 for (span
= first
.span
; span
&& span
!= last
.span
;
1639 span
= span
->next
) {
1652 first
.span
= last
.span
;
1658 page
->fmark
= first
;
1661 unlock ("ml_seltext");
1664 CAMLreturn (Val_unit
);
1667 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
1672 for (i
= a
; i
<= b
; ++i
) {
1673 len
= runetochar (buf
, &span
->text
[i
].c
);
1674 ret
= fwrite (buf
, len
, 1, f
);
1677 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1678 len
, ret
, strerror (errno
));
1685 CAMLprim value
ml_copysel (value ptr_v
)
1690 char *s
= String_val (ptr_v
);
1692 if (trylock ("ml_copysel")) {
1699 if (state
.xselpipe
) {
1700 int ret
= pclose (state
.xselpipe
);
1702 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1705 state
.xselpipe
= NULL
;
1708 printf ("========================================\n");
1714 page
= parse_pointer ("ml_sopysel", s
);
1716 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1717 printd (state
.sock
, "T nothing to copy");
1723 if (!state
.xselpipe
) {
1724 state
.xselpipe
= popen ("xsel -i", "w");
1725 if (!state
.xselpipe
) {
1726 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1738 for (span
= page
->fmark
.span
;
1739 span
&& span
!= page
->lmark
.span
->next
;
1740 span
= span
->next
) {
1741 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1742 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1743 if (pipespan (f
, span
, a
, b
)) {
1747 if (putc ('\n', f
) == EOF
) {
1748 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1754 page
->lmark
.span
= NULL
;
1755 page
->fmark
.span
= NULL
;
1759 unlock ("ml_copysel");
1762 CAMLreturn (Val_unit
);
1765 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
1767 CAMLparam1 (pagedimno_v
);
1769 int pagedimno
= Int_val (pagedimno_v
);
1772 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1773 if (trylock ("ml_getpdimrect")) {
1774 box
= fz_empty_rect
;
1777 box
= state
.pagedims
[pagedimno
].box
;
1778 unlock ("ml_getpdimrect");
1781 Store_double_field (ret_v
, 0, box
.x0
);
1782 Store_double_field (ret_v
, 1, box
.x1
);
1783 Store_double_field (ret_v
, 2, box
.y0
);
1784 Store_double_field (ret_v
, 3, box
.y1
);
1789 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
1791 CAMLparam3 (winw_v
, winh_v
, dw_v
);
1795 double maxw
= 0.0, maxh
= 0.0;
1797 double winw
= Int_val (winw_v
);
1798 double winh
= Int_val (winh_v
);
1799 double dw
= Int_val (dw_v
);
1800 double pw
, ph
, num
, den
;
1802 if (trylock ("ml_zoom_for_height")) {
1806 if (state
.proportional
) {
1807 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1810 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1811 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1814 maxw
= MAX (w
, maxw
);
1818 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1819 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
1821 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1822 y0
= MIN (p
->box
.y0
, p
->box
.y1
);
1823 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1824 y1
= MAX (p
->box
.y0
, p
->box
.y1
);
1829 if (state
.proportional
) {
1831 scaledh
= h
* scale
;
1838 if (scaledh
> maxh
) {
1845 num
= (winh
* pw
) + (ph
* dw
);
1849 unlock ("ml_zoom_for_height");
1851 ret_v
= caml_copy_double (zoom
);
1855 CAMLprim value
ml_init (value sock_v
, value params_v
)
1860 CAMLparam2 (sock_v
, params_v
);
1862 state
.rotate
= Int_val (Field (params_v
, 0));
1863 state
.proportional
= Bool_val (Field (params_v
, 1));
1864 state
.texcount
= Int_val (Field (params_v
, 2));
1865 state
.sliceheight
= Int_val (Field (params_v
, 3));
1866 state
.texform
= GL_RGBA
;
1867 state
.texty
= GL_UNSIGNED_BYTE
;
1870 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1871 if (!state
.texids
) {
1872 err (1, "calloc texids " FMT_s
,
1873 state
.texcount
* sizeof (*state
.texids
));
1876 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1877 if (!state
.texowners
) {
1878 err (1, "calloc texowners " FMT_s
,
1879 state
.texcount
* sizeof (*state
.texowners
));
1882 glGenTextures (state
.texcount
, state
.texids
);
1885 state
.sock
= Socket_val (sock_v
);
1887 state
.sock
= Int_val (sock_v
);
1891 InitializeCriticalSection (&critsec
);
1892 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1893 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1894 errx (1, "CreateThread failed: %lx", GetLastError ());
1897 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1899 errx (1, "pthread_create: %s", strerror (ret
));
1903 CAMLreturn (Val_unit
);