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__); \
120 struct pagedim
*pagedim
;
126 struct slice slices
[];
137 #if !defined _WIN32 && !defined __APPLE__
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 freepage (struct page
*page
)
367 fz_droppixmap (page
->pixmap
);
368 for (p
= state
.pages
; p
; p
= p
->prev
) {
369 if (p
->prev
== page
) {
370 p
->prev
= page
->prev
;
374 for (i
= 0; i
< page
->slicecount
; ++i
) {
375 struct slice
*s
= &page
->slices
[i
];
376 if (s
->texindex
!= -1) {
377 if (state
.texowners
[s
->texindex
].slice
== s
) {
378 state
.texowners
[s
->texindex
].slice
= NULL
;
379 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
380 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
385 fz_freetextspan (page
->text
);
387 if (page
->drawpage
) {
388 pdf_freepage (page
->drawpage
);
394 static void subdivide (struct page
*p
)
397 int h
= p
->pixmap
->h
;
398 int th
= MIN (h
, state
.sliceheight
);
400 for (i
= 0; i
< p
->slicecount
; ++i
) {
401 struct slice
*s
= &p
->slices
[i
];
409 static void *render (int pageno
, int pindex
)
418 struct pagedim
*pagedim
;
421 printd (state
.sock
, "V rendering %d", pageno
);
423 pagedim
= &state
.pagedims
[pindex
];
424 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
425 + state
.sliceheight
- 1) / state
.sliceheight
;
426 slicecount
+= slicecount
== 0;
428 page
= calloc (sizeof (*page
)
429 + (slicecount
* sizeof (struct slice
)), 1);
431 err (1, "calloc page %d\n", pageno
);
433 page
->slicecount
= slicecount
;
434 page
->prev
= state
.pages
;
437 pageobj
= pdf_getpageobject (state
.xref
, pageno
);
439 die (fz_throw ("cannot retrieve info from page %d", pageno
));
441 error
= pdf_loadpage (&drawpage
, state
.xref
, pageobj
);
445 page
->pixmap
= fz_newpixmapwithrect (fz_devicergb
, pagedim
->bbox
);
446 fz_clearpixmap (page
->pixmap
, 0xFF);
448 idev
= fz_newdrawdevice (state
.cache
, page
->pixmap
);
450 die (fz_throw ("fz_newdrawdevice failed"));
451 error
= pdf_runpage (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
452 fz_freedevice (idev
);
454 page
->drawpage
= drawpage
;
455 page
->pagedim
= pagedim
;
456 page
->pageno
= pageno
;
460 if (!state
.lotsamemory
) {
461 pdf_agestore(state
.xref
->store
, 3);
464 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
468 static void initpdims (void)
474 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
478 fz_obj
*obj
, *pageobj
;
480 pageobj
= pdf_getpageobject (state
.xref
, pageno
+ 1);
482 obj
= fz_dictgets (pageobj
, "CropBox");
483 if (!fz_isarray (obj
)) {
484 obj
= fz_dictgets (pageobj
, "MediaBox");
485 if (!fz_isarray (obj
)) {
486 die (fz_throw ("cannot find page bounds %d (%d Rd)",
487 fz_tonum (pageobj
), fz_togen (pageobj
)));
490 box
= pdf_torect (obj
);
492 obj
= fz_dictgets (pageobj
, "Rotate");
493 if (fz_isint (obj
)) {
494 rotate
= fz_toint (obj
);
499 rotate
+= state
.rotate
;
501 p
= &state
.pagedims
[state
.pagedimcount
- 1];
502 if ((state
.pagedimcount
== 0)
503 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
506 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
507 state
.pagedims
= realloc (state
.pagedims
, size
);
508 if (!state
.pagedims
) {
509 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
510 size
, state
.pagedimcount
+ 1);
512 p
= &state
.pagedims
[state
.pagedimcount
++];
519 printd (state
.sock
, "T Processed %d pages in %f seconds",
520 state
.pagecount
, end
- start
);
523 static void layout (void)
529 struct pagedim
*p
= state
.pagedims
;
532 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
533 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
534 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
535 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
536 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
539 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
540 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
541 box2
= fz_transformrect (ctm
, box
);
542 w
= box2
.x1
- box2
.x0
;
544 zoom
= (state
.w
/ w
);
546 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
547 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
548 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
549 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
550 p
->bbox
= fz_roundrect (fz_transformrect (ctm
, box
));
551 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
554 while (p
-- != state
.pagedims
) {
555 printd (state
.sock
, "l %d %d %d",
556 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
);
560 static void recurse_outline (pdf_outline
*outline
, int level
)
568 if (!outline
->link
) goto next
;
570 obj
= outline
->link
->dest
;
571 if (fz_isindirect (obj
)) {
572 obj
= fz_resolveindirect (obj
);
574 if (fz_isarray (obj
)) {
577 obj2
= fz_arrayget (obj
, 0);
578 if (fz_isint (obj2
)) {
579 pageno
= fz_toint (obj2
);
582 pageno
= pdf_findpageobject (state
.xref
, obj2
) - 1;
585 if (fz_arraylen (obj
) > 3) {
587 struct pagedim
*pagedim
= state
.pagedims
;
589 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
590 if (state
.pagedims
[i
].pageno
> pageno
)
592 pagedim
= &state
.pagedims
[i
];
595 p
.x
= fz_toint (fz_arrayget (obj
, 2));
596 p
.y
= fz_toint (fz_arrayget (obj
, 3));
597 p
= fz_transformpoint (pagedim
->ctm
, p
);
602 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
603 printd (state
.sock
, "o %d %d %d %s",
604 level
, pageno
, top
, outline
->title
);
606 if (outline
->child
) {
607 recurse_outline (outline
->child
, level
+ 1);
609 outline
= outline
->next
;
613 static void process_outline (void)
615 pdf_outline
*outline
;
617 outline
= pdf_loadoutline (state
.xref
);
619 recurse_outline (outline
, 0);
620 pdf_freeoutline (outline
);
624 static int comparespans (const void *l
, const void *r
)
626 fz_textspan
const *const*ls
= l
;
627 fz_textspan
const *const*rs
= r
;
628 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
631 /* wishful thinking function */
632 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
643 fz_textspan
*text
, *span
, **pspan
;
644 struct pagedim
*pdim
, *pdimprev
;
651 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
653 if (!state
.lotsamemory
) {
654 pdf_agestore(state
.xref
->store
, 3);
657 if (hasdata (state
.sock
)) {
658 printd (state
.sock
, "T attention requested aborting search at %d",
663 printd (state
.sock
, "T searching in page %d", pageno
);
667 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
668 pdim
= &state
.pagedims
[i
];
669 if (pdim
->pageno
== pageno
) {
672 if (pdim
->pageno
> pageno
) {
681 pageobj
= pdf_getpageobject (state
.xref
, pageno
+ 1);
683 die (fz_throw ("cannot retrieve info from page %d", pageno
));
685 error
= pdf_loadpage (&drawpage
, state
.xref
, pageobj
);
689 ctm
= fz_rotate (pdim
->rotate
);
691 text
= fz_newtextspan ();
692 tdev
= fz_newtextdevice (text
);
693 error
= pdf_runpage (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
694 if (error
) die (error
);
695 fz_freedevice (tdev
);
698 for (span
= text
; span
; span
= span
->next
) {
701 pspan
= malloc (sizeof (void *) * nspans
);
703 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
705 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
708 qsort (pspan
, nspans
, sizeof (fz_textspan
*), comparespans
);
710 j
= forward
? 0 : nspans
- 1;
715 j
+= forward
? 1 : -1;
717 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
719 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
724 if (span
->text
[i
].bbox
.y0
> y
- 1) {
728 if (span
->text
[i
].c
< 256) {
729 *p
++ = span
->text
[i
].c
;
740 ret
= regexec (re
, buf
, 1, &rm
, 0);
742 if (ret
!= REG_NOMATCH
) {
745 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
747 "T regexec error `%.*s'",
749 fz_freetextspan (text
);
750 pdf_freepage (drawpage
);
758 fz_point p1
, p2
, p3
, p4
;
760 xoff
= -pdim
->bbox
.x0
;
761 yoff
= -pdim
->bbox
.y0
;
763 sb
= &span
->text
[rm
.rm_so
].bbox
;
764 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
775 p1
= fz_transformpoint (ctm
, p1
);
776 p2
= fz_transformpoint (ctm
, p2
);
777 p3
= fz_transformpoint (ctm
, p3
);
778 p4
= fz_transformpoint (ctm
, p4
);
781 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
783 p1
.x
+ xoff
, p1
.y
+ yoff
,
784 p2
.x
+ xoff
, p2
.y
+ yoff
,
785 p3
.x
+ xoff
, p3
.y
+ yoff
,
786 p4
.x
+ xoff
, p4
.y
+ yoff
);
788 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
789 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
793 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
795 p1
.x
+ xoff
, p1
.y
+ yoff
,
796 p2
.x
+ xoff
, p2
.y
+ yoff
,
797 p3
.x
+ xoff
, p3
.y
+ yoff
,
798 p4
.x
+ xoff
, p4
.y
+ yoff
);
811 fz_freetextspan (text
);
812 pdf_freepage (drawpage
);
817 printd (state
.sock
, "T no matches %f sec", end
- start
);
819 printd (state
.sock
, "D");
828 mainloop (void *unused
)
831 int len
, ret
, oldlen
= 0;
834 len
= readlen (state
.sock
);
836 errx (1, "readlen returned 0");
839 if (oldlen
< len
+ 1) {
840 p
= realloc (p
, len
+ 1);
842 err (1, "realloc %d failed", len
+ 1);
846 readdata (state
.sock
, p
, len
);
849 if (!strncmp ("open", p
, 4)) {
851 char *filename
= p
+ 5;
856 obj
= fz_dictgets (state
.xref
->trailer
, "Info");
858 obj
= fz_dictgets (obj
, "Title");
860 printd (state
.sock
, "t %s", pdf_toutf8 (obj
));
864 else if (!strncmp ("free", p
, 4)) {
867 ret
= sscanf (p
+ 4, " %p", &ptr
);
869 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
875 else if (!strncmp ("search", p
, 6)) {
876 int icase
, pageno
, y
, ret
, len2
, forward
;
880 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
881 &icase
, &pageno
, &y
, &forward
, &len2
);
883 errx (1, "malformed search `%s' ret=%d", p
, ret
);
886 pattern
= p
+ 6 + len2
;
887 ret
= regcomp (&re
, pattern
,
888 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
893 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
894 printd (state
.sock
, "T regcomp failed `%.*s'",
898 search (&re
, pageno
, y
, forward
);
902 else if (!strncmp ("geometry", p
, 8)) {
905 printd (state
.sock
, "c");
906 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
908 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
916 for (i
= 0; i
< state
.texcount
; ++i
) {
917 state
.texowners
[i
].slice
= NULL
;
923 printd (state
.sock
, "C %d", state
.pagecount
);
925 else if (!strncmp ("rotate", p
, 6)) {
928 printd (state
.sock
, "c");
929 ret
= sscanf (p
+ 6, " %f", &rotate
);
931 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
934 state
.rotate
= rotate
;
935 state
.pagedimcount
= 0;
936 free (state
.pagedims
);
937 state
.pagedims
= NULL
;
942 printd (state
.sock
, "C %d", state
.pagecount
);
944 else if (!strncmp ("render", p
, 6)) {
945 int pageno
, pindex
, w
, h
, ret
;
948 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
950 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
954 page
= render (pageno
, pindex
);
957 printd (state
.sock
, "r %d %d %d %d %p\n",
964 else if (!strncmp ("interrupt", p
, 8)) {
965 printd (state
.sock
, "V interrupted");
968 errx (1, "unknown command %.*s", len
, p
);
974 static void showsel (struct page
*page
, int oy
)
979 struct mark first
, last
;
984 if (!first
.span
|| !last
.span
) return;
987 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
988 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
990 ox
= -page
->pixmap
->x
;
991 oy
= -page
->pixmap
->y
+ oy
;
992 for (span
= first
.span
; span
; span
= span
->next
) {
995 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1000 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1001 j
= MIN (first
.i
, last
.i
);
1002 k
= MAX (first
.i
, last
.i
);
1004 else if (span
== first
.span
) {
1007 else if (span
== last
.span
) {
1011 for (i
= j
; i
<= k
; ++i
) {
1012 bbox
= fz_unionbbox (bbox
, span
->text
[i
].bbox
);
1014 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1021 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1023 if (span
== last
.span
) break;
1025 glDisable (GL_BLEND
);
1028 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1033 struct slice
*slice
= &page
->slices
[slicenum
];
1035 w
= page
->pixmap
->w
;
1036 h
= page
->pixmap
->h
;
1038 ARSERT (w
== slice
->w
);
1039 if (slice
->texindex
!= -1
1040 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1041 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1045 int index
= (state
.texindex
++ % state
.texcount
);
1048 for (i
= 0; i
< slicenum
; ++i
) {
1049 offset
+= w
* page
->slices
[i
].h
* 4;
1052 if (state
.texowners
[index
].w
== slice
->w
) {
1053 if (state
.texowners
[index
].h
>= slice
->h
) {
1057 state
.texowners
[index
].h
= slice
->h
;
1061 state
.texowners
[index
].h
= slice
->h
;
1064 state
.texowners
[index
].slice
= slice
;
1065 state
.texowners
[index
].w
= slice
->w
;
1066 slice
->texindex
= index
;
1068 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1072 GLenum err
= glGetError ();
1073 if (err
!= GL_NO_ERROR
) {
1074 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1078 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1086 page
->pixmap
->samples
+ offset
1089 GLenum err
= glGetError ();
1090 if (err
!= GL_NO_ERROR
) {
1091 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1097 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1105 page
->pixmap
->samples
+ offset
1110 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1111 subimage
? "sub" : "img",
1112 page
->pageno
, slicenum
,
1114 state
.texids
[slice
->texindex
],
1119 CAMLprim value
ml_draw (value dispy_v
, value w_v
, value h_v
,
1120 value py_v
, value ptr_v
)
1122 CAMLparam5 (dispy_v
, w_v
, h_v
, py_v
, ptr_v
);
1123 int dispy
= Int_val (dispy_v
);
1124 int w
= Int_val (w_v
);
1125 int h
= Int_val (h_v
);
1126 int py
= Int_val (py_v
);
1127 char *s
= String_val (ptr_v
);
1133 ret
= sscanf (s
, "%p", &ptr
);
1135 errx (1, "cannot parse pointer `%s'", s
);
1139 w
= page
->pixmap
->w
;
1141 ARSERT (h
>= 0 && "ml_draw wrong h");
1142 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1144 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1146 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1147 struct slice
*slice
= &page
->slices
[slicenum
];
1148 if (slice
->h
> py
) {
1154 h
= MIN (state
.h
, h
);
1157 struct slice
*slice
= &page
->slices
[slicenum
];
1159 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1161 th
= MIN (h
, slice
->h
- py
);
1162 upload2 (page
, slicenum
, "upload");
1166 glTexCoord2i (0, py
);
1167 glVertex2i (0, dispy
);
1169 glTexCoord2i (w
, py
);
1170 glVertex2i (w
, dispy
);
1172 glTexCoord2i (w
, py
+th
);
1173 glVertex2i (w
, dispy
+ th
);
1175 glTexCoord2i (0, py
+th
);
1176 glVertex2i (0, dispy
+ th
);
1186 showsel (page
, Int_val (dispy_v
) - Int_val (py_v
));
1187 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1189 CAMLreturn (Val_unit
);
1192 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1198 p
.x
= x
+ page
->pixmap
->x
;
1199 p
.y
= y
+ page
->pixmap
->y
;
1201 ctm
= fz_invertmatrix (page
->pagedim
->ctm
);
1202 p
= fz_transformpoint (ctm
, p
);
1204 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1205 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1206 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1214 CAMLprim value
ml_highlightlinks (value ptr_v
, value yoff_v
)
1216 CAMLparam2 (ptr_v
, yoff_v
);
1219 int xoff
, yoff
= Int_val (yoff_v
);
1220 const char *s
= String_val (ptr_v
);
1222 if (trylock ("ml_highlightlinks")) {
1226 page
= parse_pointer ("ml_highlightlinks", s
);
1228 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1229 glEnable (GL_LINE_STIPPLE
);
1230 glLineStipple (0.5, 0xcccc);
1232 xoff
= -page
->pixmap
->x
;
1233 yoff
-= page
->pixmap
->y
;
1236 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1237 fz_point p1
, p2
, p3
, p4
;
1238 fz_matrix ctm
= page
->pagedim
->ctm
;
1240 p1
.x
= link
->rect
.x0
;
1241 p1
.y
= link
->rect
.y0
;
1243 p2
.x
= link
->rect
.x1
;
1244 p2
.y
= link
->rect
.y0
;
1246 p3
.x
= link
->rect
.x1
;
1247 p3
.y
= link
->rect
.y1
;
1249 p4
.x
= link
->rect
.x0
;
1250 p4
.y
= link
->rect
.y1
;
1252 p1
= fz_transformpoint (ctm
, p1
);
1253 p2
= fz_transformpoint (ctm
, p2
);
1254 p3
= fz_transformpoint (ctm
, p3
);
1255 p4
= fz_transformpoint (ctm
, p4
);
1257 switch (link
->kind
) {
1258 case PDF_LGOTO
: glColor3ub (255, 0, 0); break;
1259 case PDF_LURI
: glColor3ub (0, 0, 255); break;
1260 default: glColor3ub (0, 0, 0); break;
1263 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1264 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1265 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1266 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1270 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1271 glDisable (GL_LINE_STIPPLE
);
1272 unlock ("ml_highlightlinks");
1275 CAMLreturn (Val_unit
);
1278 CAMLprim value
ml_getlink (value ptr_v
, value x_v
, value y_v
)
1280 CAMLparam3 (ptr_v
, x_v
, y_v
);
1281 CAMLlocal2 (ret_v
, tup_v
);
1284 char *s
= String_val (ptr_v
);
1286 ret_v
= Val_int (0);
1287 if (trylock ("ml_getlink")) {
1288 ret_v
= Val_int (0);
1292 page
= parse_pointer ("ml_getlink", s
);
1294 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1296 switch (link
->kind
) {
1304 obj
= fz_arrayget (link
->dest
, 0);
1305 if (fz_isindirect (obj
)) {
1306 pageno
= pdf_findpageobject (state
.xref
, obj
) - 1;
1308 else if (fz_isint (obj
)) {
1309 pageno
= fz_toint (obj
);
1314 if (fz_arraylen (link
->dest
) > 3) {
1317 xo
= fz_arrayget (link
->dest
, 2);
1318 yo
= fz_arrayget (link
->dest
, 3);
1319 if (!fz_isnull (xo
) && !fz_isnull (yo
)) {
1320 p
.x
= fz_toint (xo
);
1321 p
.y
= fz_toint (yo
);
1322 p
= fz_transformpoint (page
->pagedim
->ctm
, p
);
1326 tup_v
= caml_alloc_tuple (2);
1327 ret_v
= caml_alloc_small (1, 1);
1328 Field (tup_v
, 0) = Val_int (pageno
);
1329 Field (tup_v
, 1) = Val_int (p
.y
);
1330 Field (ret_v
, 0) = tup_v
;
1335 ret_v
= caml_alloc_small (1, 0);
1336 Field (ret_v
, 0) = caml_copy_string (fz_tostrbuf (link
->dest
));
1340 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1344 unlock ("ml_getlink");
1350 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1352 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1356 struct mark first
, last
;
1357 int i
, x0
, x1
, y0
, y1
, oy
;
1358 char *s
= String_val (ptr_v
);
1360 if (trylock ("ml_seltext")) {
1364 page
= parse_pointer ("ml_seltext", s
);
1366 oy
= Int_val (oy_v
);
1367 x0
= Int_val (Field (rect_v
, 0));
1368 y0
= Int_val (Field (rect_v
, 1));
1369 x1
= Int_val (Field (rect_v
, 2));
1370 y1
= Int_val (Field (rect_v
, 3));
1373 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1374 glColor3ub (128, 128, 128);
1375 glRecti (x0
, y0
, x1
, y1
);
1376 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1383 page
->text
= fz_newtextspan ();
1384 tdev
= fz_newtextdevice (page
->text
);
1385 error
= pdf_runpage (state
.xref
, page
->drawpage
, tdev
,
1386 page
->pagedim
->ctm
);
1387 if (error
) die (error
);
1388 fz_freedevice (tdev
);
1391 x0
+= page
->pixmap
->x
;
1392 y0
+= page
->pixmap
->y
- oy
;
1393 x1
+= page
->pixmap
->x
;
1394 y1
+= page
->pixmap
->y
- oy
;
1400 first
.span
= page
->text
;
1401 for (span
= page
->text
; span
; span
= span
->next
) {
1402 for (i
= 0; i
< span
->len
; ++i
) {
1403 b
= &span
->text
[i
].bbox
;
1404 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1408 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1415 if (y1
< y0
|| x1
< x0
) {
1418 if (first
.span
== last
.span
) {
1423 for (span
= first
.span
; span
&& span
!= last
.span
;
1424 span
= span
->next
) {
1437 first
.span
= last
.span
;
1443 page
->fmark
= first
;
1446 unlock ("ml_seltext");
1449 CAMLreturn (Val_unit
);
1452 static int pipespan (FILE *f
, fz_textspan
*span
, int a
, int b
)
1457 for (i
= a
; i
<= b
; ++i
) {
1458 len
= runetochar (buf
, &span
->text
[i
].c
);
1459 ret
= fwrite (buf
, len
, 1, f
);
1462 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1463 len
, ret
, strerror (errno
));
1470 CAMLprim value
ml_copysel (value ptr_v
)
1475 char *s
= String_val (ptr_v
);
1477 if (trylock ("ml_copysel")) {
1484 if (state
.xselpipe
) {
1485 int ret
= pclose (state
.xselpipe
);
1487 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1490 state
.xselpipe
= NULL
;
1493 printf ("========================================\n");
1499 page
= parse_pointer ("ml_sopysel", s
);
1501 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1502 printd (state
.sock
, "T nothing to copy");
1508 if (!state
.xselpipe
) {
1509 state
.xselpipe
= popen ("xsel -i", "w");
1510 if (!state
.xselpipe
) {
1511 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1520 for (span
= page
->fmark
.span
;
1521 span
&& span
!= page
->lmark
.span
->next
;
1522 span
= span
->next
) {
1523 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1524 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1525 if (pipespan (f
, span
, a
, b
)) {
1529 if (putc ('\n', f
) == EOF
) {
1530 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1536 page
->lmark
.span
= NULL
;
1537 page
->fmark
.span
= NULL
;
1541 unlock ("ml_copysel");
1544 CAMLreturn (Val_unit
);
1547 CAMLprim value
ml_getpagewh (value pagedimno_v
)
1549 CAMLparam1 (pagedimno_v
);
1551 int pagedimno
= Int_val (pagedimno_v
);
1553 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1554 Store_double_field (ret_v
, 0, state
.pagedims
[pagedimno
].box
.x0
);
1555 Store_double_field (ret_v
, 1, state
.pagedims
[pagedimno
].box
.x1
);
1556 Store_double_field (ret_v
, 2, state
.pagedims
[pagedimno
].box
.y0
);
1557 Store_double_field (ret_v
, 3, state
.pagedims
[pagedimno
].box
.y1
);
1561 CAMLprim value
ml_init (value sock_v
)
1566 CAMLparam1 (sock_v
);
1568 state
.texcount
= 256;
1569 state
.sliceheight
= 24;
1570 state
.texform
= GL_RGBA
;
1571 state
.texty
= GL_UNSIGNED_BYTE
;
1574 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1575 if (!state
.texids
) {
1576 err (1, "calloc texids " FMT_s
,
1577 state
.texcount
* sizeof (*state
.texids
));
1580 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1581 if (!state
.texowners
) {
1582 err (1, "calloc texowners " FMT_s
,
1583 state
.texcount
* sizeof (*state
.texowners
));
1586 glGenTextures (state
.texcount
, state
.texids
);
1589 state
.sock
= Socket_val (sock_v
);
1591 state
.sock
= Int_val (sock_v
);
1594 state
.cache
= fz_newglyphcache ();
1596 errx (1, "fz_newglyphcache failed");
1600 InitializeCriticalSection (&critsec
);
1601 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1602 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1603 errx (1, "CreateThread failed: %lx", GetLastError ());
1606 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1608 errx (1, "pthread_create: %s", strerror (errno
));
1612 CAMLreturn (Val_unit
);