1 /* lot's of code c&p-ed directly from mupdf */
3 #define WIN32_LEAN_AND_MEAN
13 #pragma warning (disable:4244)
14 #pragma warning (disable:4996)
15 #pragma warning (disable:4995)
23 static void __declspec (noreturn
) err (int exitcode
, const char *fmt
, ...)
30 vfprintf (stderr
, fmt
, ap
);
32 fprintf (stderr
, ": %s\n", strerror (errno
));
35 static void __declspec (noreturn
) errx (int exitcode
, const char *fmt
, ...)
40 vfprintf (stderr
, fmt
, ap
);
45 static void __declspec (noreturn
) sockerr (int exitcode
, const char *fmt
, ...)
50 vfprintf (stderr
, fmt
, ap
);
52 fprintf (stderr
, ": wsaerror 0x%x\n", WSAGetLastError ());
73 #include <sys/types.h>
74 #include <sys/socket.h>
75 #include <sys/select.h>
79 #include <OpenGL/gl.h>
84 #ifndef GL_TEXTURE_RECTANGLE_ARB
85 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
88 #include <caml/fail.h>
89 #include <caml/alloc.h>
90 #include <caml/memory.h>
91 #include <caml/unixsupport.h>
97 #define lprintf printf
102 #define ARSERT(cond) for (;;) { \
104 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
128 struct pagedim pagedim
;
134 struct slice slices
[];
137 #if !defined _WIN32 && !defined __APPLE__
144 struct page
*pages
, *pig
;
145 struct pagedim
*pagedims
;
149 fz_glyphcache
*cache
;
177 static CRITICAL_SECTION critsec
;
179 static void lock (void *unused
)
182 EnterCriticalSection (&critsec
);
185 static void unlock (void *unused
)
188 LeaveCriticalSection (&critsec
);
191 static int trylock (void *unused
)
193 return TryEnterCriticalSection (&critsec
) == 0;
196 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
198 static void lock (const char *cap
)
200 int ret
= pthread_mutex_lock (&mutex
);
202 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
206 static void unlock (const char *cap
)
208 int ret
= pthread_mutex_unlock (&mutex
);
210 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
214 static int trylock (const char *cap
)
216 int ret
= pthread_mutex_trylock (&mutex
);
218 if (ret
&& ret
!= EBUSY
) {
219 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
225 static void *parse_pointer (const char *cap
, const char *s
)
230 ret
= sscanf (s
, "%p", &ptr
);
232 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
237 static int hasdata (int sock
)
246 n
= select (sock
+ 1, &s
, NULL
, NULL
, &tv
);
247 if (n
== 0) return 0;
248 if (n
== 1) return 1;
249 sockerr (1, "hasdata: select error ret=%d", n
);
252 static double now (void)
256 if (gettimeofday (&tv
, NULL
)) {
257 err (1, "gettimeofday");
259 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
262 static void readdata (int fd
, char *p
, int size
)
266 n
= recv (fd
, p
, size
, 0);
268 if (!n
) errx (1, "EOF while reading");
269 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
273 static void writedata (int fd
, char *p
, int size
)
278 buf
[0] = (size
>> 24) & 0xff;
279 buf
[1] = (size
>> 16) & 0xff;
280 buf
[2] = (size
>> 8) & 0xff;
281 buf
[3] = (size
>> 0) & 0xff;
283 n
= send (fd
, buf
, 4, 0);
285 if (!n
) errx (1, "EOF while writing length");
286 sockerr (1, "send " FMT_ss
, n
);
289 n
= send (fd
, p
, size
, 0);
291 if (!n
) errx (1, "EOF while writing data");
292 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
298 __attribute__ ((format (printf
, 2, 3)))
300 printd (int fd
, const char *fmt
, ...)
307 len
= vsnprintf (buf
, sizeof (buf
), fmt
, ap
);
309 writedata (fd
, buf
, len
);
312 static void die (fz_error error
)
314 fz_catch (error
, "aborting");
316 pdf_freexref (state
.xref
);
320 static void openxref (char *filename
)
326 fd
= open (filename
, O_BINARY
| O_RDONLY
, 0666);
328 die (fz_throw ("cannot open file '%s'", filename
));
330 file
= fz_openfile (fd
);
331 error
= pdf_openxrefwithstream (&state
.xref
, file
, NULL
);
333 die (fz_rethrow(error
, "cannot open document '%s'", filename
));
336 if (pdf_needspassword (state
.xref
)) {
337 die (fz_throw ("password protected"));
340 error
= pdf_loadpagetree (state
.xref
);
342 die (fz_throw ("cannot load page tree"));
345 state
.pagecount
= pdf_getpagecount (state
.xref
);
348 static int readlen (int fd
)
353 n
= recv (fd
, p
, 4, 0);
355 if (!n
) errx (1, "EOF while reading length");
356 sockerr (1, "recv " FMT_ss
, n
);
359 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
362 static void unlinkpage (struct page
*page
)
367 for (p
= state
.pages
; p
; p
= p
->prev
) {
368 if (p
->prev
== page
) {
369 p
->prev
= page
->prev
;
373 for (i
= 0; i
< page
->slicecount
; ++i
) {
374 struct slice
*s
= &page
->slices
[i
];
375 if (s
->texindex
!= -1) {
376 if (state
.texowners
[s
->texindex
].slice
== s
) {
377 state
.texowners
[s
->texindex
].slice
= NULL
;
378 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
379 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
385 static void freepage (struct page
*page
)
387 fz_droppixmap (page
->pixmap
);
392 fz_freetextspan (page
->text
);
394 if (page
->drawpage
) {
395 pdf_freepage (page
->drawpage
);
401 static void subdivide (struct page
*p
)
404 int h
= p
->pixmap
->h
;
405 int th
= MIN (h
, state
.sliceheight
);
407 for (i
= 0; i
< p
->slicecount
; ++i
) {
408 struct slice
*s
= &p
->slices
[i
];
416 int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
418 return p1
->rotate
== p2
->rotate
419 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
420 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
423 static void *render (int pageno
, int pindex
)
428 struct page
*page
= NULL
;
432 struct pagedim
*pagedim
;
435 printd (state
.sock
, "V rendering %d", pageno
);
437 pagedim
= &state
.pagedims
[pindex
];
438 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
439 + state
.sliceheight
- 1) / state
.sliceheight
;
440 slicecount
+= slicecount
== 0;
443 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
446 fz_freetextspan (page
->text
);
449 if (page
->drawpage
) {
450 pdf_freepage (page
->drawpage
);
451 page
->drawpage
= NULL
;
455 freepage (state
.pig
);
459 page
= calloc (sizeof (*page
)
460 + (slicecount
* sizeof (struct slice
)), 1);
462 err (1, "calloc page %d\n", pageno
);
464 page
->pixmap
= fz_newpixmapwithrect (fz_devicergb
, pagedim
->bbox
);
467 page
->slicecount
= slicecount
;
468 page
->prev
= state
.pages
;
471 pageobj
= pdf_getpageobject (state
.xref
, pageno
);
473 die (fz_throw ("cannot retrieve info from page %d", pageno
));
475 error
= pdf_loadpage (&drawpage
, state
.xref
, pageobj
);
479 fz_clearpixmap (page
->pixmap
, 0xFF);
481 idev
= fz_newdrawdevice (state
.cache
, page
->pixmap
);
483 die (fz_throw ("fz_newdrawdevice failed"));
484 error
= pdf_runpage (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
486 die (fz_rethrow (error
, "pdf_runpage failed"));
487 fz_freedevice (idev
);
489 page
->drawpage
= drawpage
;
490 page
->pagedim
= *pagedim
;
491 page
->pageno
= pageno
;
495 if (!state
.lotsamemory
) {
496 pdf_agestore(state
.xref
->store
, 3);
499 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
504 static void initpdims (void)
510 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
514 fz_obj
*obj
, *pageobj
;
516 pageobj
= pdf_getpageobject (state
.xref
, pageno
+ 1);
518 obj
= fz_dictgets (pageobj
, "CropBox");
519 if (!fz_isarray (obj
)) {
520 obj
= fz_dictgets (pageobj
, "MediaBox");
521 if (!fz_isarray (obj
)) {
522 die (fz_throw ("cannot find page bounds %d (%d Rd)",
523 fz_tonum (pageobj
), fz_togen (pageobj
)));
526 box
= pdf_torect (obj
);
528 obj
= fz_dictgets (pageobj
, "Rotate");
529 if (fz_isint (obj
)) {
530 rotate
= fz_toint (obj
);
535 rotate
+= state
.rotate
;
537 p
= &state
.pagedims
[state
.pagedimcount
- 1];
538 if ((state
.pagedimcount
== 0)
539 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
542 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
543 state
.pagedims
= realloc (state
.pagedims
, size
);
544 if (!state
.pagedims
) {
545 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
546 size
, state
.pagedimcount
+ 1);
548 p
= &state
.pagedims
[state
.pagedimcount
++];
555 printd (state
.sock
, "T Processed %d pages in %f seconds",
556 state
.pagecount
, end
- start
);
559 static void layout (void)
565 struct pagedim
*p
= state
.pagedims
;
568 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
569 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
570 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
571 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
572 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
575 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
576 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
577 box2
= fz_transformrect (ctm
, box
);
578 w
= box2
.x1
- box2
.x0
;
580 zoom
= (state
.w
/ w
);
582 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
583 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
584 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
585 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
586 p
->bbox
= fz_roundrect (fz_transformrect (ctm
, box
));
587 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
590 while (p
-- != state
.pagedims
) {
591 printd (state
.sock
, "l %d %d %d",
592 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
);
596 static void recurse_outline (pdf_outline
*outline
, int level
)
604 if (!outline
->link
) goto next
;
606 obj
= outline
->link
->dest
;
607 if (fz_isindirect (obj
)) {
608 obj
= fz_resolveindirect (obj
);
610 if (fz_isarray (obj
)) {
613 obj2
= fz_arrayget (obj
, 0);
614 if (fz_isint (obj2
)) {
615 pageno
= fz_toint (obj2
);
618 pageno
= pdf_findpageobject (state
.xref
, obj2
) - 1;
621 if (fz_arraylen (obj
) > 3) {
623 struct pagedim
*pagedim
= state
.pagedims
;
625 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
626 if (state
.pagedims
[i
].pageno
> pageno
)
628 pagedim
= &state
.pagedims
[i
];
631 p
.x
= fz_toint (fz_arrayget (obj
, 2));
632 p
.y
= fz_toint (fz_arrayget (obj
, 3));
633 p
= fz_transformpoint (pagedim
->ctm
, p
);
638 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
639 printd (state
.sock
, "o %d %d %d %s",
640 level
, pageno
, top
, outline
->title
);
642 if (outline
->child
) {
643 recurse_outline (outline
->child
, level
+ 1);
645 outline
= outline
->next
;
649 static void process_outline (void)
651 pdf_outline
*outline
;
653 outline
= pdf_loadoutline (state
.xref
);
655 recurse_outline (outline
, 0);
656 pdf_freeoutline (outline
);
660 static int comparespans (const void *l
, const void *r
)
662 fz_textspan
const *const*ls
= l
;
663 fz_textspan
const *const*rs
= r
;
664 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
667 /* wishful thinking function */
668 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
679 fz_textspan
*text
, *span
, **pspan
;
680 struct pagedim
*pdim
, *pdimprev
;
687 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
689 if (!state
.lotsamemory
) {
690 pdf_agestore(state
.xref
->store
, 3);
693 if (hasdata (state
.sock
)) {
694 printd (state
.sock
, "T attention requested aborting search at %d",
699 printd (state
.sock
, "T searching in page %d", pageno
);
703 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
704 pdim
= &state
.pagedims
[i
];
705 if (pdim
->pageno
== pageno
) {
708 if (pdim
->pageno
> pageno
) {
717 pageobj
= pdf_getpageobject (state
.xref
, pageno
+ 1);
719 die (fz_throw ("cannot retrieve info from page %d", pageno
));
721 error
= pdf_loadpage (&drawpage
, state
.xref
, pageobj
);
725 ctm
= fz_rotate (pdim
->rotate
);
727 text
= fz_newtextspan ();
728 tdev
= fz_newtextdevice (text
);
729 error
= pdf_runpage (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
730 if (error
) die (error
);
731 fz_freedevice (tdev
);
734 for (span
= text
; span
; span
= span
->next
) {
737 pspan
= malloc (sizeof (void *) * nspans
);
739 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
741 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
744 qsort (pspan
, nspans
, sizeof (fz_textspan
*), comparespans
);
746 j
= forward
? 0 : nspans
- 1;
751 j
+= forward
? 1 : -1;
753 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
755 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
760 if (span
->text
[i
].bbox
.y0
> y
- 1) {
764 if (span
->text
[i
].c
< 256) {
765 *p
++ = span
->text
[i
].c
;
776 ret
= regexec (re
, buf
, 1, &rm
, 0);
778 if (ret
!= REG_NOMATCH
) {
781 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
783 "T regexec error `%.*s'",
785 fz_freetextspan (text
);
786 pdf_freepage (drawpage
);
794 fz_point p1
, p2
, p3
, p4
;
796 xoff
= -pdim
->bbox
.x0
;
797 yoff
= -pdim
->bbox
.y0
;
799 sb
= &span
->text
[rm
.rm_so
].bbox
;
800 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
811 p1
= fz_transformpoint (ctm
, p1
);
812 p2
= fz_transformpoint (ctm
, p2
);
813 p3
= fz_transformpoint (ctm
, p3
);
814 p4
= fz_transformpoint (ctm
, p4
);
817 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
819 p1
.x
+ xoff
, p1
.y
+ yoff
,
820 p2
.x
+ xoff
, p2
.y
+ yoff
,
821 p3
.x
+ xoff
, p3
.y
+ yoff
,
822 p4
.x
+ xoff
, p4
.y
+ yoff
);
824 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
825 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
829 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
831 p1
.x
+ xoff
, p1
.y
+ yoff
,
832 p2
.x
+ xoff
, p2
.y
+ yoff
,
833 p3
.x
+ xoff
, p3
.y
+ yoff
,
834 p4
.x
+ xoff
, p4
.y
+ yoff
);
847 fz_freetextspan (text
);
848 pdf_freepage (drawpage
);
853 printd (state
.sock
, "T no matches %f sec", end
- start
);
855 printd (state
.sock
, "D");
864 mainloop (void *unused
)
867 int len
, ret
, oldlen
= 0;
870 len
= readlen (state
.sock
);
872 errx (1, "readlen returned 0");
875 if (oldlen
< len
+ 1) {
876 p
= realloc (p
, len
+ 1);
878 err (1, "realloc %d failed", len
+ 1);
882 readdata (state
.sock
, p
, len
);
885 if (!strncmp ("open", p
, 4)) {
887 char *filename
= p
+ 5;
892 obj
= fz_dictgets (state
.xref
->trailer
, "Info");
894 obj
= fz_dictgets (obj
, "Title");
896 printd (state
.sock
, "t %s", pdf_toutf8 (obj
));
900 else if (!strncmp ("free", p
, 4)) {
903 ret
= sscanf (p
+ 4, " %p", &ptr
);
905 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
910 else if (!strncmp ("search", p
, 6)) {
911 int icase
, pageno
, y
, ret
, len2
, forward
;
915 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
916 &icase
, &pageno
, &y
, &forward
, &len2
);
918 errx (1, "malformed search `%s' ret=%d", p
, ret
);
921 pattern
= p
+ 6 + len2
;
922 ret
= regcomp (&re
, pattern
,
923 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
928 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
929 printd (state
.sock
, "T regcomp failed `%.*s'",
933 search (&re
, pageno
, y
, forward
);
937 else if (!strncmp ("geometry", p
, 8)) {
940 printd (state
.sock
, "c");
941 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
943 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
951 for (i
= 0; i
< state
.texcount
; ++i
) {
952 state
.texowners
[i
].slice
= NULL
;
958 printd (state
.sock
, "C %d", state
.pagecount
);
960 else if (!strncmp ("rotate", p
, 6)) {
963 printd (state
.sock
, "c");
964 ret
= sscanf (p
+ 6, " %f", &rotate
);
966 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
969 state
.rotate
= rotate
;
970 state
.pagedimcount
= 0;
971 free (state
.pagedims
);
972 state
.pagedims
= NULL
;
977 freepage (state
.pig
);
981 printd (state
.sock
, "C %d", state
.pagecount
);
983 else if (!strncmp ("render", p
, 6)) {
984 int pageno
, pindex
, w
, h
, ret
;
987 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
989 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
993 page
= render (pageno
, pindex
);
996 printd (state
.sock
, "r %d %d %d %d %p\n",
1003 else if (!strncmp ("interrupt", p
, 8)) {
1004 printd (state
.sock
, "V interrupted");
1007 errx (1, "unknown command %.*s", len
, p
);
1013 static void showsel (struct page
*page
, int oy
)
1018 struct mark first
, last
;
1020 first
= page
->fmark
;
1023 if (!first
.span
|| !last
.span
) return;
1025 glEnable (GL_BLEND
);
1026 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1027 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1029 ox
= -page
->pixmap
->x
;
1030 oy
= -page
->pixmap
->y
+ oy
;
1031 for (span
= first
.span
; span
; span
= span
->next
) {
1034 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1039 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1040 j
= MIN (first
.i
, last
.i
);
1041 k
= MAX (first
.i
, last
.i
);
1043 else if (span
== first
.span
) {
1046 else if (span
== last
.span
) {
1050 for (i
= j
; i
<= k
; ++i
) {
1051 bbox
= fz_unionbbox (bbox
, span
->text
[i
].bbox
);
1053 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1060 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1062 if (span
== last
.span
) break;
1064 glDisable (GL_BLEND
);
1067 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1072 struct slice
*slice
= &page
->slices
[slicenum
];
1074 w
= page
->pixmap
->w
;
1075 h
= page
->pixmap
->h
;
1077 ARSERT (w
== slice
->w
);
1078 if (slice
->texindex
!= -1
1079 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1080 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1084 int index
= (state
.texindex
++ % state
.texcount
);
1087 for (i
= 0; i
< slicenum
; ++i
) {
1088 offset
+= w
* page
->slices
[i
].h
* 4;
1091 if (state
.texowners
[index
].w
== slice
->w
) {
1092 if (state
.texowners
[index
].h
>= slice
->h
) {
1096 state
.texowners
[index
].h
= slice
->h
;
1100 state
.texowners
[index
].h
= slice
->h
;
1103 state
.texowners
[index
].slice
= slice
;
1104 state
.texowners
[index
].w
= slice
->w
;
1105 slice
->texindex
= index
;
1107 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1111 GLenum err
= glGetError ();
1112 if (err
!= GL_NO_ERROR
) {
1113 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1117 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1125 page
->pixmap
->samples
+ offset
1128 GLenum err
= glGetError ();
1129 if (err
!= GL_NO_ERROR
) {
1130 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1136 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1144 page
->pixmap
->samples
+ offset
1149 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1150 subimage
? "sub" : "img",
1151 page
->pageno
, slicenum
,
1153 state
.texids
[slice
->texindex
],
1158 CAMLprim value
ml_draw (value dispy_v
, value w_v
, value h_v
,
1159 value py_v
, value ptr_v
)
1161 CAMLparam5 (dispy_v
, w_v
, h_v
, py_v
, ptr_v
);
1162 int dispy
= Int_val (dispy_v
);
1163 int w
= Int_val (w_v
);
1164 int h
= Int_val (h_v
);
1165 int py
= Int_val (py_v
);
1166 char *s
= String_val (ptr_v
);
1172 ret
= sscanf (s
, "%p", &ptr
);
1174 errx (1, "cannot parse pointer `%s'", s
);
1178 w
= page
->pixmap
->w
;
1180 ARSERT (h
>= 0 && "ml_draw wrong h");
1181 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1183 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1185 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1186 struct slice
*slice
= &page
->slices
[slicenum
];
1187 if (slice
->h
> py
) {
1193 h
= MIN (state
.h
, h
);
1196 struct slice
*slice
= &page
->slices
[slicenum
];
1198 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1200 th
= MIN (h
, slice
->h
- py
);
1201 upload2 (page
, slicenum
, "upload");
1205 glTexCoord2i (0, py
);
1206 glVertex2i (0, dispy
);
1208 glTexCoord2i (w
, py
);
1209 glVertex2i (w
, dispy
);
1211 glTexCoord2i (w
, py
+th
);
1212 glVertex2i (w
, dispy
+ th
);
1214 glTexCoord2i (0, py
+th
);
1215 glVertex2i (0, dispy
+ th
);
1225 showsel (page
, Int_val (dispy_v
) - Int_val (py_v
));
1226 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1228 CAMLreturn (Val_unit
);
1231 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1237 p
.x
= x
+ page
->pixmap
->x
;
1238 p
.y
= y
+ page
->pixmap
->y
;
1240 ctm
= fz_invertmatrix (page
->pagedim
.ctm
);
1241 p
= fz_transformpoint (ctm
, p
);
1243 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1244 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1245 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1253 CAMLprim value
ml_highlightlinks (value ptr_v
, value yoff_v
)
1255 CAMLparam2 (ptr_v
, yoff_v
);
1258 int xoff
, yoff
= Int_val (yoff_v
);
1259 const char *s
= String_val (ptr_v
);
1261 if (trylock ("ml_highlightlinks")) {
1265 page
= parse_pointer ("ml_highlightlinks", s
);
1267 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1268 glEnable (GL_LINE_STIPPLE
);
1269 glLineStipple (0.5, 0xcccc);
1271 xoff
= -page
->pixmap
->x
;
1272 yoff
-= page
->pixmap
->y
;
1275 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1276 fz_point p1
, p2
, p3
, p4
;
1277 fz_matrix ctm
= page
->pagedim
.ctm
;
1279 p1
.x
= link
->rect
.x0
;
1280 p1
.y
= link
->rect
.y0
;
1282 p2
.x
= link
->rect
.x1
;
1283 p2
.y
= link
->rect
.y0
;
1285 p3
.x
= link
->rect
.x1
;
1286 p3
.y
= link
->rect
.y1
;
1288 p4
.x
= link
->rect
.x0
;
1289 p4
.y
= link
->rect
.y1
;
1291 p1
= fz_transformpoint (ctm
, p1
);
1292 p2
= fz_transformpoint (ctm
, p2
);
1293 p3
= fz_transformpoint (ctm
, p3
);
1294 p4
= fz_transformpoint (ctm
, p4
);
1296 switch (link
->kind
) {
1297 case PDF_LGOTO
: glColor3ub (255, 0, 0); break;
1298 case PDF_LURI
: glColor3ub (0, 0, 255); break;
1299 default: glColor3ub (0, 0, 0); break;
1302 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1303 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1304 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1305 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1309 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1310 glDisable (GL_LINE_STIPPLE
);
1311 unlock ("ml_highlightlinks");
1314 CAMLreturn (Val_unit
);
1317 static void ensuretext (struct page
*page
)
1323 page
->text
= fz_newtextspan ();
1324 tdev
= fz_newtextdevice (page
->text
);
1325 error
= pdf_runpage (state
.xref
, page
->drawpage
, tdev
,
1327 if (error
) die (error
);
1328 fz_freedevice (tdev
);
1332 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1334 CAMLparam3 (ptr_v
, x_v
, y_v
);
1335 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1338 char *s
= String_val (ptr_v
);
1340 ret_v
= Val_int (0);
1341 if (trylock ("ml_whatsunder")) {
1345 page
= parse_pointer ("ml_whatsunder", s
);
1346 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1348 switch (link
->kind
) {
1356 obj
= fz_arrayget (link
->dest
, 0);
1357 if (fz_isindirect (obj
)) {
1358 pageno
= pdf_findpageobject (state
.xref
, obj
) - 1;
1360 else if (fz_isint (obj
)) {
1361 pageno
= fz_toint (obj
);
1366 if (fz_arraylen (link
->dest
) > 3) {
1369 xo
= fz_arrayget (link
->dest
, 2);
1370 yo
= fz_arrayget (link
->dest
, 3);
1371 if (!fz_isnull (xo
) && !fz_isnull (yo
)) {
1372 p
.x
= fz_toint (xo
);
1373 p
.y
= fz_toint (yo
);
1374 p
= fz_transformpoint (page
->pagedim
.ctm
, p
);
1378 tup_v
= caml_alloc_tuple (2);
1379 ret_v
= caml_alloc_small (1, 1);
1380 Field (tup_v
, 0) = Val_int (pageno
);
1381 Field (tup_v
, 1) = Val_int (p
.y
);
1382 Field (ret_v
, 0) = tup_v
;
1387 str_v
= caml_copy_string (fz_tostrbuf (link
->dest
));
1388 ret_v
= caml_alloc_small (1, 0);
1389 Field (ret_v
, 0) = str_v
;
1393 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1402 x
= Int_val (x_v
) + page
->pixmap
->x
;
1403 y
= Int_val (y_v
) + page
->pixmap
->y
;
1405 for (span
= page
->text
; span
; span
= span
->next
) {
1406 for (i
= 0; i
< span
->len
; ++i
) {
1408 b
= &span
->text
[i
].bbox
;
1409 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1410 str_v
= caml_copy_string (span
->font
->name
);
1411 ret_v
= caml_alloc_small (1, 2);
1412 Field (ret_v
, 0) = str_v
;
1419 unlock ("ml_whatsunder");
1425 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1427 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1431 struct mark first
, last
;
1432 int i
, x0
, x1
, y0
, y1
, oy
;
1433 char *s
= String_val (ptr_v
);
1435 if (trylock ("ml_seltext")) {
1439 page
= parse_pointer ("ml_seltext", s
);
1442 oy
= Int_val (oy_v
);
1443 x0
= Int_val (Field (rect_v
, 0));
1444 y0
= Int_val (Field (rect_v
, 1));
1445 x1
= Int_val (Field (rect_v
, 2));
1446 y1
= Int_val (Field (rect_v
, 3));
1449 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1450 glColor3ub (128, 128, 128);
1451 glRecti (x0
, y0
, x1
, y1
);
1452 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1455 x0
+= page
->pixmap
->x
;
1456 y0
+= page
->pixmap
->y
- oy
;
1457 x1
+= page
->pixmap
->x
;
1458 y1
+= page
->pixmap
->y
- oy
;
1463 last
.i
= first
.i
= 0;
1464 first
.span
= page
->text
;
1465 for (span
= page
->text
; span
; span
= span
->next
) {
1466 for (i
= 0; i
< span
->len
; ++i
) {
1467 b
= &span
->text
[i
].bbox
;
1468 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1472 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1479 if (y1
< y0
|| x1
< x0
) {
1482 if (first
.span
== last
.span
) {
1487 for (span
= first
.span
; span
&& span
!= last
.span
;
1488 span
= span
->next
) {
1501 first
.span
= last
.span
;
1507 page
->fmark
= first
;
1510 unlock ("ml_seltext");
1513 CAMLreturn (Val_unit
);
1516 static int pipespan (FILE *f
, fz_textspan
*span
, int a
, int b
)
1521 for (i
= a
; i
<= b
; ++i
) {
1522 len
= runetochar (buf
, &span
->text
[i
].c
);
1523 ret
= fwrite (buf
, len
, 1, f
);
1526 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1527 len
, ret
, strerror (errno
));
1534 CAMLprim value
ml_copysel (value ptr_v
)
1539 char *s
= String_val (ptr_v
);
1541 if (trylock ("ml_copysel")) {
1548 if (state
.xselpipe
) {
1549 int ret
= pclose (state
.xselpipe
);
1551 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1554 state
.xselpipe
= NULL
;
1557 printf ("========================================\n");
1563 page
= parse_pointer ("ml_sopysel", s
);
1565 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1566 printd (state
.sock
, "T nothing to copy");
1572 if (!state
.xselpipe
) {
1573 state
.xselpipe
= popen ("xsel -i", "w");
1574 if (!state
.xselpipe
) {
1575 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1587 for (span
= page
->fmark
.span
;
1588 span
&& span
!= page
->lmark
.span
->next
;
1589 span
= span
->next
) {
1590 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1591 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1592 if (pipespan (f
, span
, a
, b
)) {
1596 if (putc ('\n', f
) == EOF
) {
1597 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1603 page
->lmark
.span
= NULL
;
1604 page
->fmark
.span
= NULL
;
1608 unlock ("ml_copysel");
1611 CAMLreturn (Val_unit
);
1614 CAMLprim value
ml_getpagewh (value pagedimno_v
)
1616 CAMLparam1 (pagedimno_v
);
1618 int pagedimno
= Int_val (pagedimno_v
);
1620 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1621 Store_double_field (ret_v
, 0, state
.pagedims
[pagedimno
].box
.x0
);
1622 Store_double_field (ret_v
, 1, state
.pagedims
[pagedimno
].box
.x1
);
1623 Store_double_field (ret_v
, 2, state
.pagedims
[pagedimno
].box
.y0
);
1624 Store_double_field (ret_v
, 3, state
.pagedims
[pagedimno
].box
.y1
);
1628 CAMLprim value
ml_init (value sock_v
)
1633 CAMLparam1 (sock_v
);
1635 state
.texcount
= 256;
1636 state
.sliceheight
= 24;
1637 state
.texform
= GL_RGBA
;
1638 state
.texty
= GL_UNSIGNED_BYTE
;
1641 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1642 if (!state
.texids
) {
1643 err (1, "calloc texids " FMT_s
,
1644 state
.texcount
* sizeof (*state
.texids
));
1647 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1648 if (!state
.texowners
) {
1649 err (1, "calloc texowners " FMT_s
,
1650 state
.texcount
* sizeof (*state
.texowners
));
1653 glGenTextures (state
.texcount
, state
.texids
);
1656 state
.sock
= Socket_val (sock_v
);
1658 state
.sock
= Int_val (sock_v
);
1661 state
.cache
= fz_newglyphcache ();
1663 errx (1, "fz_newglyphcache failed");
1667 InitializeCriticalSection (&critsec
);
1668 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1669 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1670 errx (1, "CreateThread failed: %lx", GetLastError ());
1673 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1675 errx (1, "pthread_create: %s", strerror (errno
));
1679 CAMLreturn (Val_unit
);