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__); \
135 struct pagedim pagedim
;
140 struct slice slices
[];
143 #if !defined _WIN32 && !defined __APPLE__
151 struct pagedim
*pagedims
;
155 fz_glyphcache
*cache
;
182 static CRITICAL_SECTION critsec
;
184 static void lock (void *unused
)
187 EnterCriticalSection (&critsec
);
190 static void unlock (void *unused
)
193 LeaveCriticalSection (&critsec
);
196 static int trylock (void *unused
)
198 return TryEnterCriticalSection (&critsec
) == 0;
201 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
203 static void lock (const char *cap
)
205 int ret
= pthread_mutex_lock (&mutex
);
207 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
211 static void unlock (const char *cap
)
213 int ret
= pthread_mutex_unlock (&mutex
);
215 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
219 static int trylock (const char *cap
)
221 int ret
= pthread_mutex_trylock (&mutex
);
223 if (ret
&& ret
!= EBUSY
) {
224 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
230 static void *parse_pointer (const char *cap
, const char *s
)
235 ret
= sscanf (s
, "%p", &ptr
);
237 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
242 static int hasdata (int sock
)
246 ret
= ioctlsocket (sock
, FIONREAD
, &avail
);
247 if (ret
) sockerr (1, "hasdata: FIONREAD error ret=%d", ret
);
251 static double now (void)
255 if (gettimeofday (&tv
, NULL
)) {
256 err (1, "gettimeofday");
258 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
261 static void readdata (int fd
, char *p
, int size
)
265 n
= recv (fd
, p
, size
, 0);
267 if (!n
) errx (1, "EOF while reading");
268 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
272 static void writedata (int fd
, char *p
, int size
)
277 buf
[0] = (size
>> 24) & 0xff;
278 buf
[1] = (size
>> 16) & 0xff;
279 buf
[2] = (size
>> 8) & 0xff;
280 buf
[3] = (size
>> 0) & 0xff;
282 n
= send (fd
, buf
, 4, 0);
284 if (!n
) errx (1, "EOF while writing length");
285 sockerr (1, "send " FMT_ss
, n
);
288 n
= send (fd
, p
, size
, 0);
290 if (!n
) errx (1, "EOF while writing data");
291 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
297 __attribute__ ((format (printf
, 2, 3)))
299 printd (int fd
, const char *fmt
, ...)
306 len
= vsnprintf (buf
, sizeof (buf
), fmt
, ap
);
308 writedata (fd
, buf
, len
);
311 static void die (fz_error error
)
313 fz_catch (error
, "aborting");
315 pdf_freexref (state
.xref
);
319 static void openxref (char *filename
)
327 pdf_freexref (state
.xref
);
330 if (state
.pagedims
) {
331 free (state
.pagedims
);
332 state
.pagedims
= NULL
;
334 state
.pagedimcount
= 0;
336 fd
= open (filename
, O_BINARY
| O_RDONLY
, 0666);
338 die (fz_throw ("cannot open file '%s'", filename
));
340 file
= fz_openfile (fd
);
341 error
= pdf_openxrefwithstream (&state
.xref
, file
, NULL
);
343 die (fz_rethrow(error
, "cannot open document '%s'", filename
));
346 if (pdf_needspassword (state
.xref
)) {
347 die (fz_throw ("password protected"));
350 error
= pdf_loadpagetree (state
.xref
);
352 die (fz_throw ("cannot load page tree"));
355 state
.pagecount
= pdf_getpagecount (state
.xref
);
358 static int readlen (int fd
)
363 n
= recv (fd
, p
, 4, 0);
365 if (!n
) errx (1, "EOF while reading length");
366 sockerr (1, "recv " FMT_ss
, n
);
369 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
372 static void unlinkpage (struct page
*page
)
376 for (i
= 0; i
< page
->slicecount
; ++i
) {
377 struct slice
*s
= &page
->slices
[i
];
378 if (s
->texindex
!= -1) {
379 if (state
.texowners
[s
->texindex
].slice
== s
) {
380 state
.texowners
[s
->texindex
].slice
= NULL
;
381 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
382 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
388 static void freepage (struct page
*page
)
390 fz_droppixmap (page
->pixmap
);
395 fz_freetextspan (page
->text
);
397 if (page
->drawpage
) {
398 pdf_freepage (page
->drawpage
);
404 static void subdivide (struct page
*p
)
407 int h
= p
->pixmap
->h
;
408 int th
= MIN (h
, state
.sliceheight
);
410 for (i
= 0; i
< p
->slicecount
; ++i
) {
411 struct slice
*s
= &p
->slices
[i
];
419 static int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
421 return p1
->rotate
== p2
->rotate
422 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
423 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
429 static int cacheline32bytes
;
431 static void __attribute__ ((constructor
)) clcheck (void)
433 char **envp
= environ
;
438 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
440 cacheline32bytes
= auxv
[1] == 32;
446 static void __attribute__ ((optimize ("O"))) clearpixmap (fz_pixmap
*pixmap
)
448 if (cacheline32bytes
) {
449 intptr_t a1
, a2
, diff
;
450 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
451 vector
unsigned char v
= vec_splat_u8 (-1);
452 vector
unsigned char *p
;
454 a1
= a2
= (intptr_t) pixmap
->samples
;
455 a2
= (a1
+ 31) & ~31;
460 while (a1
!= a2
) *(char *) a1
++ = 0xff;
461 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
462 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
464 vec_st (v
, i
+ 16, p
);
466 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
468 else fz_clearpixmapwithcolor (pixmap
, 0xff);
471 #define clearpixmap(p) fz_clearpixmapwithcolor (p, 0xff)
474 static void *render (int pageno
, int pindex
)
479 struct page
*page
= NULL
;
483 struct pagedim
*pagedim
;
486 printd (state
.sock
, "V rendering %d", pageno
);
488 pagedim
= &state
.pagedims
[pindex
];
489 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
490 + state
.sliceheight
- 1) / state
.sliceheight
;
491 slicecount
+= slicecount
== 0;
494 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
497 fz_freetextspan (page
->text
);
500 if (page
->drawpage
) {
501 pdf_freepage (page
->drawpage
);
502 page
->drawpage
= NULL
;
506 freepage (state
.pig
);
510 page
= calloc (sizeof (*page
)
511 + (slicecount
* sizeof (struct slice
)), 1);
513 err (1, "calloc page %d\n", pageno
);
515 page
->pixmap
= fz_newpixmapwithrect (fz_devicergb
, pagedim
->bbox
);
518 page
->slicecount
= slicecount
;
520 pageobj
= pdf_getpageobject (state
.xref
, pageno
);
522 die (fz_throw ("cannot retrieve info from page %d", pageno
));
524 error
= pdf_loadpage (&drawpage
, state
.xref
, pageobj
);
528 clearpixmap (page
->pixmap
);
530 idev
= fz_newdrawdevice (state
.cache
, page
->pixmap
);
532 die (fz_throw ("fz_newdrawdevice failed"));
533 error
= pdf_runpage (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
535 die (fz_rethrow (error
, "pdf_runpage failed"));
536 fz_freedevice (idev
);
538 page
->drawpage
= drawpage
;
539 page
->pagedim
= *pagedim
;
540 page
->pageno
= pageno
;
544 pdf_agestore(state
.xref
->store
, 3);
546 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
551 static void initpdims (void)
557 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
561 fz_obj
*obj
, *pageobj
;
563 pageobj
= pdf_getpageobject (state
.xref
, pageno
+ 1);
565 obj
= fz_dictgets (pageobj
, "CropBox");
566 if (!fz_isarray (obj
)) {
567 obj
= fz_dictgets (pageobj
, "MediaBox");
568 if (!fz_isarray (obj
)) {
569 die (fz_throw ("cannot find page bounds %d (%d Rd)",
570 fz_tonum (pageobj
), fz_togen (pageobj
)));
573 box
= pdf_torect (obj
);
575 obj
= fz_dictgets (pageobj
, "Rotate");
576 if (fz_isint (obj
)) {
577 rotate
= fz_toint (obj
);
582 rotate
+= state
.rotate
;
584 p
= &state
.pagedims
[state
.pagedimcount
- 1];
585 if ((state
.pagedimcount
== 0)
586 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
589 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
590 state
.pagedims
= realloc (state
.pagedims
, size
);
591 if (!state
.pagedims
) {
592 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
593 size
, state
.pagedimcount
+ 1);
595 p
= &state
.pagedims
[state
.pagedimcount
++];
602 printd (state
.sock
, "T Processed %d pages in %f seconds",
603 state
.pagecount
, end
- start
);
606 static void layout (void)
612 struct pagedim
*p
= state
.pagedims
;
615 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
616 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
617 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
618 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
619 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
622 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
623 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
624 box2
= fz_transformrect (ctm
, box
);
625 w
= box2
.x1
- box2
.x0
;
627 zoom
= (state
.w
/ w
);
629 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
630 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
631 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
632 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
633 p
->bbox
= fz_roundrect (fz_transformrect (ctm
, box
));
634 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
637 while (p
-- != state
.pagedims
) {
638 printd (state
.sock
, "l %d %d %d",
639 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
);
643 static void recurse_outline (pdf_outline
*outline
, int level
)
651 if (!outline
->link
) goto next
;
653 obj
= outline
->link
->dest
;
654 if (fz_isindirect (obj
)) {
655 obj
= fz_resolveindirect (obj
);
657 if (fz_isarray (obj
)) {
660 obj2
= fz_arrayget (obj
, 0);
661 if (fz_isint (obj2
)) {
662 pageno
= fz_toint (obj2
);
665 pageno
= pdf_findpageobject (state
.xref
, obj2
) - 1;
668 if (fz_arraylen (obj
) > 3) {
672 xo
= fz_arrayget (obj
, 2);
673 yo
= fz_arrayget (obj
, 3);
674 if (!fz_isnull (xo
) && !fz_isnull (yo
)) {
675 struct pagedim
*pagedim
= state
.pagedims
;
677 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
678 if (state
.pagedims
[i
].pageno
> pageno
)
680 pagedim
= &state
.pagedims
[i
];
684 p
= fz_transformpoint (pagedim
->ctm
, p
);
685 h
= pagedim
->bbox
.y1
- pagedim
->bbox
.y0
;
691 pageno
= pdf_findpageobject (state
.xref
, outline
->link
->dest
) - 1;
694 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
695 printd (state
.sock
, "o %d %d %d %d %s",
696 level
, pageno
, top
, h
, outline
->title
);
698 if (outline
->child
) {
699 recurse_outline (outline
->child
, level
+ 1);
701 outline
= outline
->next
;
705 static void process_outline (void)
707 pdf_outline
*outline
;
709 if (!state
.needoutline
) return;
711 state
.needoutline
= 0;
712 outline
= pdf_loadoutline (state
.xref
);
714 recurse_outline (outline
, 0);
715 pdf_freeoutline (outline
);
719 static int comparespans (const void *l
, const void *r
)
721 fz_textspan
const *const*ls
= l
;
722 fz_textspan
const *const*rs
= r
;
723 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
726 /* wishful thinking function */
727 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
738 fz_textspan
*text
, *span
, **pspan
;
739 struct pagedim
*pdim
, *pdimprev
;
746 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
748 pdf_agestore(state
.xref
->store
, 3);
750 if (hasdata (state
.sock
)) {
751 printd (state
.sock
, "T attention requested aborting search at %d",
756 printd (state
.sock
, "T searching in page %d", pageno
);
760 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
761 pdim
= &state
.pagedims
[i
];
762 if (pdim
->pageno
== pageno
) {
765 if (pdim
->pageno
> pageno
) {
774 pageobj
= pdf_getpageobject (state
.xref
, pageno
+ 1);
776 die (fz_throw ("cannot retrieve info from page %d", pageno
));
778 error
= pdf_loadpage (&drawpage
, state
.xref
, pageobj
);
782 ctm
= fz_rotate (pdim
->rotate
);
784 text
= fz_newtextspan ();
785 tdev
= fz_newtextdevice (text
);
786 error
= pdf_runpage (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
787 if (error
) die (error
);
788 fz_freedevice (tdev
);
791 for (span
= text
; span
; span
= span
->next
) {
794 pspan
= malloc (sizeof (void *) * nspans
);
796 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
798 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
801 qsort (pspan
, nspans
, sizeof (fz_textspan
*), comparespans
);
803 j
= forward
? 0 : nspans
- 1;
808 j
+= forward
? 1 : -1;
810 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
812 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
817 if (span
->text
[i
].bbox
.y0
> y
- 1) {
821 if (span
->text
[i
].c
< 256) {
822 *p
++ = span
->text
[i
].c
;
833 ret
= regexec (re
, buf
, 1, &rm
, 0);
835 if (ret
!= REG_NOMATCH
) {
838 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
840 "T regexec error `%.*s'",
842 fz_freetextspan (text
);
843 pdf_freepage (drawpage
);
851 fz_point p1
, p2
, p3
, p4
;
853 xoff
= -pdim
->bbox
.x0
;
854 yoff
= -pdim
->bbox
.y0
;
856 sb
= &span
->text
[rm
.rm_so
].bbox
;
857 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
868 p1
= fz_transformpoint (ctm
, p1
);
869 p2
= fz_transformpoint (ctm
, p2
);
870 p3
= fz_transformpoint (ctm
, p3
);
871 p4
= fz_transformpoint (ctm
, p4
);
874 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
876 p1
.x
+ xoff
, p1
.y
+ yoff
,
877 p2
.x
+ xoff
, p2
.y
+ yoff
,
878 p3
.x
+ xoff
, p3
.y
+ yoff
,
879 p4
.x
+ xoff
, p4
.y
+ yoff
);
881 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
882 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
886 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
888 p1
.x
+ xoff
, p1
.y
+ yoff
,
889 p2
.x
+ xoff
, p2
.y
+ yoff
,
890 p3
.x
+ xoff
, p3
.y
+ yoff
,
891 p4
.x
+ xoff
, p4
.y
+ yoff
);
904 fz_freetextspan (text
);
905 pdf_freepage (drawpage
);
910 printd (state
.sock
, "T no matches %f sec", end
- start
);
912 printd (state
.sock
, "D");
921 mainloop (void *unused
)
924 int len
, ret
, oldlen
= 0;
927 len
= readlen (state
.sock
);
929 errx (1, "readlen returned 0");
932 if (oldlen
< len
+ 1) {
933 p
= realloc (p
, len
+ 1);
935 err (1, "realloc %d failed", len
+ 1);
939 readdata (state
.sock
, p
, len
);
942 if (!strncmp ("open", p
, 4)) {
944 char *filename
= p
+ 5;
949 obj
= fz_dictgets (state
.xref
->trailer
, "Info");
953 obj
= fz_dictgets (obj
, "Title");
954 s
= pdf_toutf8 (obj
);
956 printd (state
.sock
, "t %s", s
);
960 state
.needoutline
= 1;
962 else if (!strncmp ("free", p
, 4)) {
965 ret
= sscanf (p
+ 4, " %p", &ptr
);
967 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
972 else if (!strncmp ("search", p
, 6)) {
973 int icase
, pageno
, y
, ret
, len2
, forward
;
977 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
978 &icase
, &pageno
, &y
, &forward
, &len2
);
980 errx (1, "malformed search `%s' ret=%d", p
, ret
);
983 pattern
= p
+ 6 + len2
;
984 ret
= regcomp (&re
, pattern
,
985 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
990 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
991 printd (state
.sock
, "T regcomp failed `%.*s'",
995 search (&re
, pageno
, y
, forward
);
999 else if (!strncmp ("geometry", p
, 8)) {
1002 printd (state
.sock
, "c");
1003 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1005 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1013 for (i
= 0; i
< state
.texcount
; ++i
) {
1014 state
.texowners
[i
].slice
= NULL
;
1019 unlock ("geometry");
1020 printd (state
.sock
, "C %d", state
.pagecount
);
1022 else if (!strncmp ("rotate", p
, 6)) {
1025 printd (state
.sock
, "c");
1026 ret
= sscanf (p
+ 6, " %f", &rotate
);
1028 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
1031 state
.rotate
= rotate
;
1032 state
.pagedimcount
= 0;
1033 free (state
.pagedims
);
1034 state
.pagedims
= NULL
;
1039 freepage (state
.pig
);
1043 printd (state
.sock
, "C %d", state
.pagecount
);
1045 else if (!strncmp ("render", p
, 6)) {
1046 int pageno
, pindex
, w
, h
, ret
;
1049 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
1051 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1055 page
= render (pageno
, pindex
);
1058 printd (state
.sock
, "r %d %d %d %d %p",
1065 else if (!strncmp ("interrupt", p
, 9)) {
1066 printd (state
.sock
, "V interrupted");
1069 errx (1, "unknown command %.*s", len
, p
);
1075 static void showsel (struct page
*page
, int oy
)
1080 struct mark first
, last
;
1082 first
= page
->fmark
;
1085 if (!first
.span
|| !last
.span
) return;
1087 glEnable (GL_BLEND
);
1088 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1089 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1091 ox
= -page
->pixmap
->x
;
1092 oy
= -page
->pixmap
->y
+ oy
;
1093 for (span
= first
.span
; span
; span
= span
->next
) {
1096 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1101 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1102 j
= MIN (first
.i
, last
.i
);
1103 k
= MAX (first
.i
, last
.i
);
1105 else if (span
== first
.span
) {
1108 else if (span
== last
.span
) {
1112 for (i
= j
; i
<= k
; ++i
) {
1113 bbox
= fz_unionbbox (bbox
, span
->text
[i
].bbox
);
1115 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1122 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1124 if (span
== last
.span
) break;
1126 glDisable (GL_BLEND
);
1129 static void highlightlinks (struct page
*page
, int yoff
)
1134 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1135 glEnable (GL_LINE_STIPPLE
);
1136 glLineStipple (0.5, 0xcccc);
1138 xoff
= -page
->pixmap
->x
;
1139 yoff
-= page
->pixmap
->y
;
1142 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1143 fz_point p1
, p2
, p3
, p4
;
1144 fz_matrix ctm
= page
->pagedim
.ctm
;
1146 p1
.x
= link
->rect
.x0
;
1147 p1
.y
= link
->rect
.y0
;
1149 p2
.x
= link
->rect
.x1
;
1150 p2
.y
= link
->rect
.y0
;
1152 p3
.x
= link
->rect
.x1
;
1153 p3
.y
= link
->rect
.y1
;
1155 p4
.x
= link
->rect
.x0
;
1156 p4
.y
= link
->rect
.y1
;
1158 p1
= fz_transformpoint (ctm
, p1
);
1159 p2
= fz_transformpoint (ctm
, p2
);
1160 p3
= fz_transformpoint (ctm
, p3
);
1161 p4
= fz_transformpoint (ctm
, p4
);
1163 switch (link
->kind
) {
1164 case PDF_LGOTO
: glColor3ub (255, 0, 0); break;
1165 case PDF_LURI
: glColor3ub (0, 0, 255); break;
1166 default: glColor3ub (0, 0, 0); break;
1169 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1170 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1171 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1172 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1176 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1177 glDisable (GL_LINE_STIPPLE
);
1180 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1185 struct slice
*slice
= &page
->slices
[slicenum
];
1187 w
= page
->pixmap
->w
;
1188 h
= page
->pixmap
->h
;
1190 ARSERT (w
== slice
->w
);
1191 if (slice
->texindex
!= -1
1192 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1193 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1197 int index
= (state
.texindex
++ % state
.texcount
);
1200 for (i
= 0; i
< slicenum
; ++i
) {
1201 offset
+= w
* page
->slices
[i
].h
* 4;
1204 if (state
.texowners
[index
].w
== slice
->w
) {
1205 if (state
.texowners
[index
].h
>= slice
->h
) {
1209 state
.texowners
[index
].h
= slice
->h
;
1213 state
.texowners
[index
].h
= slice
->h
;
1216 state
.texowners
[index
].slice
= slice
;
1217 state
.texowners
[index
].w
= slice
->w
;
1218 slice
->texindex
= index
;
1220 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1224 GLenum err
= glGetError ();
1225 if (err
!= GL_NO_ERROR
) {
1226 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1230 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1238 page
->pixmap
->samples
+ offset
1241 GLenum err
= glGetError ();
1242 if (err
!= GL_NO_ERROR
) {
1243 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1249 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1257 page
->pixmap
->samples
+ offset
1262 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1263 subimage
? "sub" : "img",
1264 page
->pageno
, slicenum
,
1266 state
.texids
[slice
->texindex
],
1271 CAMLprim value
ml_draw (value args_v
, value ptr_v
)
1273 CAMLparam2 (args_v
, ptr_v
);
1274 int dispy
= Int_val (Field (args_v
, 0));
1275 int w
= Int_val (Field (args_v
, 1));
1276 int h
= Int_val (Field (args_v
, 2));
1277 int py
= Int_val (Field (args_v
, 3));
1278 int hlinks
= Bool_val (Field (args_v
, 4));
1279 char *s
= String_val (ptr_v
);
1284 int yoff
= dispy
- py
;
1286 ret
= sscanf (s
, "%p", &ptr
);
1288 errx (1, "cannot parse pointer `%s'", s
);
1292 w
= page
->pixmap
->w
;
1294 ARSERT (h
>= 0 && "ml_draw wrong h");
1295 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1297 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1299 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1300 struct slice
*slice
= &page
->slices
[slicenum
];
1301 if (slice
->h
> py
) {
1307 h
= MIN (state
.h
, h
);
1310 struct slice
*slice
= &page
->slices
[slicenum
];
1312 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1314 th
= MIN (h
, slice
->h
- py
);
1315 upload2 (page
, slicenum
, "upload");
1319 glTexCoord2i (0, py
);
1320 glVertex2i (0, dispy
);
1322 glTexCoord2i (w
, py
);
1323 glVertex2i (w
, dispy
);
1325 glTexCoord2i (w
, py
+th
);
1326 glVertex2i (w
, dispy
+ th
);
1328 glTexCoord2i (0, py
+th
);
1329 glVertex2i (0, dispy
+ th
);
1339 showsel (page
, yoff
);
1340 if (hlinks
) highlightlinks (page
, yoff
);
1341 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1343 CAMLreturn (Val_unit
);
1346 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1352 p
.x
= x
+ page
->pixmap
->x
;
1353 p
.y
= y
+ page
->pixmap
->y
;
1355 ctm
= fz_invertmatrix (page
->pagedim
.ctm
);
1356 p
= fz_transformpoint (ctm
, p
);
1358 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1359 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1360 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1368 static void ensuretext (struct page
*page
)
1374 page
->text
= fz_newtextspan ();
1375 tdev
= fz_newtextdevice (page
->text
);
1376 error
= pdf_runpage (state
.xref
, page
->drawpage
, tdev
,
1378 if (error
) die (error
);
1379 fz_freedevice (tdev
);
1383 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1385 CAMLparam3 (ptr_v
, x_v
, y_v
);
1386 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1389 char *s
= String_val (ptr_v
);
1391 ret_v
= Val_int (0);
1392 if (trylock ("ml_whatsunder")) {
1396 page
= parse_pointer ("ml_whatsunder", s
);
1397 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1399 switch (link
->kind
) {
1410 if (fz_isarray (link
->dest
)) {
1411 obj
= fz_arrayget (link
->dest
, 0);
1412 if (fz_isindirect (obj
)) {
1413 pageno
= pdf_findpageobject (state
.xref
, obj
) - 1;
1415 else if (fz_isint (obj
)) {
1416 pageno
= fz_toint (obj
);
1419 if (fz_arraylen (link
->dest
) > 3) {
1422 xo
= fz_arrayget (link
->dest
, 2);
1423 yo
= fz_arrayget (link
->dest
, 3);
1424 if (!fz_isnull (xo
) && !fz_isnull (yo
)) {
1425 p
.x
= fz_toint (xo
);
1426 p
.y
= fz_toint (yo
);
1427 p
= fz_transformpoint (page
->pagedim
.ctm
, p
);
1432 pageno
= pdf_findpageobject (state
.xref
, link
->dest
) - 1;
1434 tup_v
= caml_alloc_tuple (2);
1435 ret_v
= caml_alloc_small (1, 1);
1436 Field (tup_v
, 0) = Val_int (pageno
);
1437 Field (tup_v
, 1) = Val_int (p
.y
);
1438 Field (ret_v
, 0) = tup_v
;
1443 str_v
= caml_copy_string (fz_tostrbuf (link
->dest
));
1444 ret_v
= caml_alloc_small (1, 0);
1445 Field (ret_v
, 0) = str_v
;
1449 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1458 x
= Int_val (x_v
) + page
->pixmap
->x
;
1459 y
= Int_val (y_v
) + page
->pixmap
->y
;
1461 for (span
= page
->text
; span
; span
= span
->next
) {
1462 for (i
= 0; i
< span
->len
; ++i
) {
1464 b
= &span
->text
[i
].bbox
;
1465 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1467 span
->font
&& span
->font
->name
1469 : "Span has no font name"
1471 #ifdef FT_FREETYPE_H
1472 FT_FaceRec
*face
= span
->font
->ftface
;
1473 if (face
&& face
->family_name
) {
1475 char *n1
= face
->family_name
;
1476 size_t l1
= strlen (n1
);
1477 size_t l2
= strlen (n2
);
1479 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
1480 s
= malloc (l1
+ l2
+ 2);
1484 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
1485 str_v
= caml_copy_string (s
);
1491 str_v
= caml_copy_string (n2
);
1494 str_v
= caml_copy_string (n2
);
1496 ret_v
= caml_alloc_small (1, 2);
1497 Field (ret_v
, 0) = str_v
;
1504 unlock ("ml_whatsunder");
1510 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1512 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1516 struct mark first
, last
;
1517 int i
, x0
, x1
, y0
, y1
, oy
;
1518 char *s
= String_val (ptr_v
);
1520 if (trylock ("ml_seltext")) {
1524 page
= parse_pointer ("ml_seltext", s
);
1527 oy
= Int_val (oy_v
);
1528 x0
= Int_val (Field (rect_v
, 0));
1529 y0
= Int_val (Field (rect_v
, 1));
1530 x1
= Int_val (Field (rect_v
, 2));
1531 y1
= Int_val (Field (rect_v
, 3));
1534 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1535 glColor3ub (128, 128, 128);
1536 glRecti (x0
, y0
, x1
, y1
);
1537 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1540 x0
+= page
->pixmap
->x
;
1541 y0
+= page
->pixmap
->y
- oy
;
1542 x1
+= page
->pixmap
->x
;
1543 y1
+= page
->pixmap
->y
- oy
;
1548 last
.i
= first
.i
= 0;
1549 first
.span
= page
->text
;
1550 for (span
= page
->text
; span
; span
= span
->next
) {
1551 for (i
= 0; i
< span
->len
; ++i
) {
1552 b
= &span
->text
[i
].bbox
;
1553 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1557 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1564 if (y1
< y0
|| x1
< x0
) {
1567 if (first
.span
== last
.span
) {
1572 for (span
= first
.span
; span
&& span
!= last
.span
;
1573 span
= span
->next
) {
1586 first
.span
= last
.span
;
1592 page
->fmark
= first
;
1595 unlock ("ml_seltext");
1598 CAMLreturn (Val_unit
);
1601 static int pipespan (FILE *f
, fz_textspan
*span
, int a
, int b
)
1606 for (i
= a
; i
<= b
; ++i
) {
1607 len
= runetochar (buf
, &span
->text
[i
].c
);
1608 ret
= fwrite (buf
, len
, 1, f
);
1611 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1612 len
, ret
, strerror (errno
));
1619 CAMLprim value
ml_copysel (value ptr_v
)
1624 char *s
= String_val (ptr_v
);
1626 if (trylock ("ml_copysel")) {
1633 if (state
.xselpipe
) {
1634 int ret
= pclose (state
.xselpipe
);
1636 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1639 state
.xselpipe
= NULL
;
1642 printf ("========================================\n");
1648 page
= parse_pointer ("ml_sopysel", s
);
1650 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1651 printd (state
.sock
, "T nothing to copy");
1657 if (!state
.xselpipe
) {
1658 state
.xselpipe
= popen ("xsel -i", "w");
1659 if (!state
.xselpipe
) {
1660 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1672 for (span
= page
->fmark
.span
;
1673 span
&& span
!= page
->lmark
.span
->next
;
1674 span
= span
->next
) {
1675 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1676 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1677 if (pipespan (f
, span
, a
, b
)) {
1681 if (putc ('\n', f
) == EOF
) {
1682 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1688 page
->lmark
.span
= NULL
;
1689 page
->fmark
.span
= NULL
;
1693 unlock ("ml_copysel");
1696 CAMLreturn (Val_unit
);
1699 CAMLprim value
ml_getpagewh (value pagedimno_v
)
1701 CAMLparam1 (pagedimno_v
);
1703 int pagedimno
= Int_val (pagedimno_v
);
1705 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1706 Store_double_field (ret_v
, 0, state
.pagedims
[pagedimno
].box
.x0
);
1707 Store_double_field (ret_v
, 1, state
.pagedims
[pagedimno
].box
.x1
);
1708 Store_double_field (ret_v
, 2, state
.pagedims
[pagedimno
].box
.y0
);
1709 Store_double_field (ret_v
, 3, state
.pagedims
[pagedimno
].box
.y1
);
1713 CAMLprim value
ml_init (value sock_v
)
1718 CAMLparam1 (sock_v
);
1720 state
.texcount
= 256;
1721 state
.sliceheight
= 24;
1722 state
.texform
= GL_RGBA
;
1723 state
.texty
= GL_UNSIGNED_BYTE
;
1726 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1727 if (!state
.texids
) {
1728 err (1, "calloc texids " FMT_s
,
1729 state
.texcount
* sizeof (*state
.texids
));
1732 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1733 if (!state
.texowners
) {
1734 err (1, "calloc texowners " FMT_s
,
1735 state
.texcount
* sizeof (*state
.texowners
));
1738 glGenTextures (state
.texcount
, state
.texids
);
1741 state
.sock
= Socket_val (sock_v
);
1743 state
.sock
= Int_val (sock_v
);
1746 state
.cache
= fz_newglyphcache ();
1748 errx (1, "fz_newglyphcache failed");
1752 InitializeCriticalSection (&critsec
);
1753 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1754 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1755 errx (1, "CreateThread failed: %lx", GetLastError ());
1758 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1760 errx (1, "pthread_create: %s", strerror (errno
));
1764 CAMLreturn (Val_unit
);