1 /* lots of code c&p-ed directly from mupdf */
10 #define WIN32_LEAN_AND_MEAN
13 #define fionread_arg long
21 #pragma warning (disable:4244)
22 #pragma warning (disable:4996)
23 #pragma warning (disable:4995)
27 #define NORETURN __declspec (noreturn)
28 #elif defined __GNUC__
29 #define NORETURN __attribute__ ((noreturn))
35 static void __declspec (noreturn
) sockerr (int exitcode
, const char *fmt
, ...)
40 vfprintf (stderr
, fmt
, ap
);
42 fprintf (stderr
, ": wsaerror 0x%x\n", WSAGetLastError ());
48 #define fionread_arg int
49 #define ioctlsocket ioctl
62 #include <sys/types.h>
63 #include <sys/socket.h>
64 #include <sys/ioctl.h>
67 static void NORETURN
err (int exitcode
, const char *fmt
, ...)
74 vfprintf (stderr
, fmt
, ap
);
76 fprintf (stderr
, ": %s\n", strerror (savederrno
));
81 static void NORETURN
errx (int exitcode
, const char *fmt
, ...)
86 vfprintf (stderr
, fmt
, ap
);
94 #include <OpenGL/gl.h>
99 #ifndef GL_TEXTURE_RECTANGLE_ARB
100 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
103 #include <caml/fail.h>
104 #include <caml/alloc.h>
105 #include <caml/memory.h>
106 #include <caml/unixsupport.h>
112 #define lprintf printf
118 #include FT_FREETYPE_H
121 #define ARSERT(cond) for (;;) { \
123 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
148 struct pagedim pagedim
;
153 struct slice slices
[];
156 #if !defined _WIN32 && !defined __APPLE__
164 struct pagedim
*pagedims
;
168 fz_glyph_cache
*cache
;
196 static CRITICAL_SECTION critsec
;
198 static void lock (void *unused
)
201 EnterCriticalSection (&critsec
);
204 static void unlock (void *unused
)
207 LeaveCriticalSection (&critsec
);
210 static int trylock (void *unused
)
212 return TryEnterCriticalSection (&critsec
) == 0;
215 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
217 static void lock (const char *cap
)
219 int ret
= pthread_mutex_lock (&mutex
);
221 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
225 static void unlock (const char *cap
)
227 int ret
= pthread_mutex_unlock (&mutex
);
229 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
233 static int trylock (const char *cap
)
235 int ret
= pthread_mutex_trylock (&mutex
);
237 if (ret
&& ret
!= EBUSY
) {
238 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
244 static void *parse_pointer (const char *cap
, const char *s
)
249 ret
= sscanf (s
, "%p", &ptr
);
251 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
256 static int hasdata (int sock
)
260 ret
= ioctlsocket (sock
, FIONREAD
, &avail
);
261 if (ret
) sockerr (1, "hasdata: FIONREAD error ret=%d", ret
);
265 static double now (void)
269 if (gettimeofday (&tv
, NULL
)) {
270 err (1, "gettimeofday");
272 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
275 static void readdata (int fd
, char *p
, int size
)
279 n
= recv (fd
, p
, size
, 0);
281 if (!n
) errx (1, "EOF while reading");
282 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
286 static void writedata (int fd
, char *p
, int size
)
291 buf
[0] = (size
>> 24) & 0xff;
292 buf
[1] = (size
>> 16) & 0xff;
293 buf
[2] = (size
>> 8) & 0xff;
294 buf
[3] = (size
>> 0) & 0xff;
296 n
= send (fd
, buf
, 4, 0);
298 if (!n
) errx (1, "EOF while writing length");
299 sockerr (1, "send " FMT_ss
, n
);
302 n
= send (fd
, p
, size
, 0);
304 if (!n
) errx (1, "EOF while writing data");
305 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
311 __attribute__ ((format (printf
, 2, 3)))
313 printd (int fd
, const char *fmt
, ...)
321 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
324 len
= vsnprintf (buf
, size
, fmt
, ap
);
327 if (len
> -1 && len
< size
) {
328 writedata (fd
, buf
, len
);
338 buf
= realloc (buf
, size
);
343 static void die (fz_error error
)
345 fz_catch (error
, "aborting");
347 pdf_free_xref (state
.xref
);
351 static void openxref (char *filename
, char *password
)
356 for (i
= 0; i
< state
.texcount
; ++i
) {
357 state
.texowners
[i
].slice
= NULL
;
361 fz_free_glyph_cache (state
.cache
);
364 state
.cache
= fz_new_glyph_cache ();
366 errx (1, "fz_newglyph_cache failed");
370 if (state
.xref
->store
) {
371 pdf_free_store (state
.xref
->store
);
372 state
.xref
->store
= NULL
;
374 pdf_free_xref (state
.xref
);
378 if (state
.pagedims
) {
379 free (state
.pagedims
);
380 state
.pagedims
= NULL
;
382 state
.pagedimcount
= 0;
384 error
= pdf_open_xref (&state
.xref
, filename
, password
);
389 error
= pdf_load_page_tree (state
.xref
);
394 state
.pagecount
= pdf_count_pages (state
.xref
);
397 static void pdfinfo (void)
399 printd (state
.sock
, "i PDF version %d.%d\n",
400 state
.xref
->version
/ 10, state
.xref
->version
% 10);
402 #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
409 f
= open_memstream (&buf
, &size
);
411 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
412 fz_fprint_obj (f
, fz_resolve_indirect (obj
), 0);
413 if (fclose (f
)) err (1, "fclose on memstream failed");
414 if (size
> 64*1024) size
= 64*1024;
415 printd (state
.sock
, "i %.*s", (int) size
, buf
);
419 printd (state
.sock
, "i error opening memstream: %s\n",
426 static int readlen (int fd
)
431 n
= recv (fd
, p
, 4, 0);
433 if (!n
) errx (1, "EOF while reading length");
434 sockerr (1, "recv " FMT_ss
, n
);
437 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
440 static void unlinkpage (struct page
*page
)
444 for (i
= 0; i
< page
->slicecount
; ++i
) {
445 struct slice
*s
= &page
->slices
[i
];
446 if (s
->texindex
!= -1) {
447 if (state
.texowners
[s
->texindex
].slice
== s
) {
448 state
.texowners
[s
->texindex
].slice
= NULL
;
449 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
450 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
456 static void freepage (struct page
*page
)
458 fz_drop_pixmap (page
->pixmap
);
463 fz_free_text_span (page
->text
);
465 if (page
->drawpage
) {
466 pdf_free_page (page
->drawpage
);
472 static void subdivide (struct page
*p
)
475 int h
= p
->pixmap
->h
;
476 int th
= MIN (h
, state
.sliceheight
);
478 for (i
= 0; i
< p
->slicecount
; ++i
) {
479 struct slice
*s
= &p
->slices
[i
];
487 static int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
489 return p1
->rotate
== p2
->rotate
490 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
491 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
497 static int cacheline32bytes
;
498 extern char **environ
;
500 static void __attribute__ ((constructor
)) clcheck (void)
502 char **envp
= environ
;
507 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
509 cacheline32bytes
= auxv
[1] == 32;
515 static void __attribute__ ((optimize ("O"))) clearpixmap (fz_pixmap
*pixmap
)
517 if (cacheline32bytes
) {
518 intptr_t a1
, a2
, diff
;
519 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
520 vector
unsigned char v
= vec_splat_u8 (-1);
521 vector
unsigned char *p
;
523 a1
= a2
= (intptr_t) pixmap
->samples
;
524 a2
= (a1
+ 31) & ~31;
529 while (a1
!= a2
) *(char *) a1
++ = 0xff;
530 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
531 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
533 vec_st (v
, i
+ 16, p
);
535 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
537 else fz_clear_pixmap_with_color (pixmap
, 0xff);
540 #define clearpixmap(p) fz_clear_pixmap_with_color (p, 0xff)
543 static void *render (int pageno
, int pindex
)
547 struct page
*page
= NULL
;
551 struct pagedim
*pagedim
;
554 printd (state
.sock
, "V rendering %d", pageno
);
556 pagedim
= &state
.pagedims
[pindex
];
557 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
558 + state
.sliceheight
- 1) / state
.sliceheight
;
559 slicecount
+= slicecount
== 0;
562 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
565 fz_free_text_span (page
->text
);
568 if (page
->drawpage
) {
569 pdf_free_page (page
->drawpage
);
570 page
->drawpage
= NULL
;
574 freepage (state
.pig
);
578 page
= calloc (sizeof (*page
)
579 + (slicecount
* sizeof (struct slice
)), 1);
581 err (1, "calloc page %d\n", pageno
);
583 page
->pixmap
= fz_new_pixmap_with_rect (fz_device_rgb
, pagedim
->bbox
);
586 page
->slicecount
= slicecount
;
588 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
- 1);
592 clearpixmap (page
->pixmap
);
594 idev
= fz_new_draw_device (state
.cache
, page
->pixmap
);
596 die (fz_throw ("fz_newdrawdevice failed"));
597 error
= pdf_run_page (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
599 die (fz_rethrow (error
, "pdf_runpage failed"));
600 fz_free_device (idev
);
602 page
->drawpage
= drawpage
;
603 page
->pagedim
= *pagedim
;
604 page
->pageno
= pageno
;
608 pdf_age_store (state
.xref
->store
, 3);
610 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
615 static void initpdims (void)
621 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
625 fz_obj
*obj
, *pageobj
;
627 pageobj
= state
.xref
->page_objs
[pageno
];
629 obj
= fz_dict_gets (pageobj
, "CropBox");
630 if (!fz_is_array (obj
)) {
631 obj
= fz_dict_gets (pageobj
, "MediaBox");
632 if (!fz_is_array (obj
)) {
633 die (fz_throw ("cannot find page bounds %d (%d Rd)",
634 fz_to_num (pageobj
), fz_to_gen (pageobj
)));
637 box
= pdf_to_rect (obj
);
639 obj
= fz_dict_gets (pageobj
, "Rotate");
640 if (fz_is_int (obj
)) {
641 rotate
= fz_to_int (obj
);
646 rotate
+= state
.rotate
;
648 p
= &state
.pagedims
[state
.pagedimcount
- 1];
649 if ((state
.pagedimcount
== 0)
650 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
653 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
654 state
.pagedims
= realloc (state
.pagedims
, size
);
655 if (!state
.pagedims
) {
656 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
657 size
, state
.pagedimcount
+ 1);
659 p
= &state
.pagedims
[state
.pagedimcount
++];
666 printd (state
.sock
, "T Processed %d pages in %f seconds",
667 state
.pagecount
, end
- start
);
670 static void layout (void)
675 double zoom
, w
, maxw
= 0;
676 struct pagedim
*p
= state
.pagedims
;
678 if (state
.proportional
) {
679 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
680 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
681 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
682 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
683 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
686 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
687 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
688 box2
= fz_transform_rect (ctm
, box
);
689 w
= box2
.x1
- box2
.x0
;
690 maxw
= MAX (w
, maxw
);
695 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
696 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
697 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
698 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
699 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
702 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
703 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
704 box2
= fz_transform_rect (ctm
, box
);
705 w
= box2
.x1
- box2
.x0
;
707 if (state
.proportional
) {
708 double scale
= w
/ maxw
;
709 zoom
= (state
.w
/ w
) * scale
;
715 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
716 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
717 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
718 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
719 p
->bbox
= fz_round_rect (fz_transform_rect (ctm
, box
));
720 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
721 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
724 while (p
-- != state
.pagedims
) {
725 printd (state
.sock
, "l %d %d %d %d",
726 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
,
731 static void recurse_outline (pdf_outline
*outline
, int level
)
739 if (!outline
->link
) goto next
;
741 obj
= outline
->link
->dest
;
742 if (fz_is_indirect (obj
)) {
743 obj
= fz_resolve_indirect (obj
);
745 if (fz_is_array (obj
)) {
748 obj2
= fz_array_get (obj
, 0);
749 if (fz_is_int (obj2
)) {
750 pageno
= fz_to_int (obj2
);
753 pageno
= pdf_find_page_number (state
.xref
, obj2
);
756 if (fz_array_len (obj
) > 3) {
760 xo
= fz_array_get (obj
, 2);
761 yo
= fz_array_get (obj
, 3);
762 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
763 struct pagedim
*pagedim
= state
.pagedims
;
765 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
766 if (state
.pagedims
[i
].pageno
> pageno
)
768 pagedim
= &state
.pagedims
[i
];
770 p
.x
= fz_to_int (xo
);
771 p
.y
= fz_to_int (yo
);
772 p
= fz_transform_point (pagedim
->ctm
, p
);
773 h
= pagedim
->bbox
.y1
- pagedim
->bbox
.y0
;
779 pageno
= pdf_find_page_number (state
.xref
, outline
->link
->dest
);
782 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
784 printd (state
.sock
, "o %d %d %d %d %s",
785 level
, pageno
, top
, h
, outline
->title
);
788 if (outline
->child
) {
789 recurse_outline (outline
->child
, level
+ 1);
791 outline
= outline
->next
;
795 static void process_outline (void)
797 pdf_outline
*outline
;
799 if (!state
.needoutline
) return;
801 state
.needoutline
= 0;
802 outline
= pdf_load_outline (state
.xref
);
804 recurse_outline (outline
, 0);
805 pdf_free_outline (outline
);
809 static int comparespans (const void *l
, const void *r
)
811 fz_text_span
const *const*ls
= l
;
812 fz_text_span
const *const*rs
= r
;
813 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
816 /* wishful thinking function */
817 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
827 fz_text_span
*text
, *span
, **pspan
;
828 struct pagedim
*pdim
, *pdimprev
;
835 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
837 pdf_age_store (state
.xref
->store
, 3);
839 if (hasdata (state
.sock
)) {
840 printd (state
.sock
, "T attention requested aborting search at %d",
845 printd (state
.sock
, "T searching in page %d", pageno
);
849 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
850 pdim
= &state
.pagedims
[i
];
851 if (pdim
->pageno
== pageno
) {
854 if (pdim
->pageno
> pageno
) {
863 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
);
867 ctm
= fz_rotate (pdim
->rotate
);
869 text
= fz_new_text_span ();
870 tdev
= fz_new_text_device (text
);
871 error
= pdf_run_page (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
872 if (error
) die (error
);
873 fz_free_device (tdev
);
876 for (span
= text
; span
; span
= span
->next
) {
879 pspan
= malloc (sizeof (void *) * nspans
);
881 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
883 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
886 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
888 j
= forward
? 0 : nspans
- 1;
893 j
+= forward
? 1 : -1;
895 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
897 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
902 if (span
->text
[i
].bbox
.y0
> y
- 1) {
906 if (span
->text
[i
].c
< 256) {
907 *p
++ = span
->text
[i
].c
;
918 ret
= regexec (re
, buf
, 1, &rm
, 0);
920 if (ret
!= REG_NOMATCH
) {
923 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
925 "T regexec error `%.*s'",
927 fz_free_text_span (text
);
928 pdf_free_page (drawpage
);
936 fz_point p1
, p2
, p3
, p4
;
938 xoff
= pdim
->left
- pdim
->bbox
.x0
;
939 yoff
= -pdim
->bbox
.y0
;
941 sb
= &span
->text
[rm
.rm_so
].bbox
;
942 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
953 p1
= fz_transform_point (ctm
, p1
);
954 p2
= fz_transform_point (ctm
, p2
);
955 p3
= fz_transform_point (ctm
, p3
);
956 p4
= fz_transform_point (ctm
, p4
);
959 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
961 p1
.x
+ xoff
, p1
.y
+ yoff
,
962 p2
.x
+ xoff
, p2
.y
+ yoff
,
963 p3
.x
+ xoff
, p3
.y
+ yoff
,
964 p4
.x
+ xoff
, p4
.y
+ yoff
);
966 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
967 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
971 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
973 p1
.x
+ xoff
, p1
.y
+ yoff
,
974 p2
.x
+ xoff
, p2
.y
+ yoff
,
975 p3
.x
+ xoff
, p3
.y
+ yoff
,
976 p4
.x
+ xoff
, p4
.y
+ yoff
);
989 fz_free_text_span (text
);
990 pdf_free_page (drawpage
);
995 printd (state
.sock
, "T no matches %f sec", end
- start
);
997 printd (state
.sock
, "D");
1006 mainloop (void *unused
)
1009 int len
, ret
, oldlen
= 0;
1012 len
= readlen (state
.sock
);
1014 errx (1, "readlen returned 0");
1017 if (oldlen
< len
+ 1) {
1018 p
= realloc (p
, len
+ 1);
1020 err (1, "realloc %d failed", len
+ 1);
1024 readdata (state
.sock
, p
, len
);
1027 if (!strncmp ("open", p
, 4)) {
1031 char *filename
= p
+ 5;
1033 filenamelen
= strlen (filename
);
1034 password
= filename
+ filenamelen
+ 1;
1036 openxref (filename
, password
);
1039 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
1043 obj
= fz_dict_gets (obj
, "Title");
1044 s
= pdf_to_utf8 (obj
);
1046 printd (state
.sock
, "t %s", s
);
1051 state
.needoutline
= 1;
1053 else if (!strncmp ("free", p
, 4)) {
1056 ret
= sscanf (p
+ 4, " %p", &ptr
);
1058 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
1063 else if (!strncmp ("search", p
, 6)) {
1064 int icase
, pageno
, y
, ret
, len2
, forward
;
1068 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1069 &icase
, &pageno
, &y
, &forward
, &len2
);
1071 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1074 pattern
= p
+ 6 + len2
;
1075 ret
= regcomp (&re
, pattern
,
1076 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1081 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1082 printd (state
.sock
, "T regcomp failed `%.*s'",
1083 (int) size
, errbuf
);
1086 search (&re
, pageno
, y
, forward
);
1090 else if (!strncmp ("geometry", p
, 8)) {
1093 printd (state
.sock
, "c");
1094 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1096 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1104 for (i
= 0; i
< state
.texcount
; ++i
) {
1105 state
.texowners
[i
].slice
= NULL
;
1110 unlock ("geometry");
1111 printd (state
.sock
, "C %d", state
.pagecount
);
1113 else if (!strncmp ("reinit", p
, 6)) {
1117 printd (state
.sock
, "c");
1118 ret
= sscanf (p
+ 6, " %f %d", &rotate
, &proportional
);
1120 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
1123 state
.rotate
= rotate
;
1124 state
.proportional
= proportional
;
1125 state
.pagedimcount
= 0;
1126 free (state
.pagedims
);
1127 state
.pagedims
= NULL
;
1132 freepage (state
.pig
);
1136 printd (state
.sock
, "C %d", state
.pagecount
);
1138 else if (!strncmp ("render", p
, 6)) {
1139 int pageno
, pindex
, w
, h
, ret
;
1142 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
1144 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1148 page
= render (pageno
, pindex
);
1151 printd (state
.sock
, "r %d %d %d %d %d %d %p",
1160 else if (!strncmp ("info", p
, 4)) {
1163 else if (!strncmp ("interrupt", p
, 9)) {
1164 printd (state
.sock
, "V interrupted");
1167 errx (1, "unknown command %.*s", len
, p
);
1173 static void showsel (struct page
*page
, int oy
)
1178 struct mark first
, last
;
1180 first
= page
->fmark
;
1183 if (!first
.span
|| !last
.span
) return;
1185 glEnable (GL_BLEND
);
1186 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1187 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1189 ox
= -page
->pixmap
->x
+ page
->pagedim
.left
;
1190 oy
= -page
->pixmap
->y
+ oy
;
1191 for (span
= first
.span
; span
; span
= span
->next
) {
1194 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1199 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1200 j
= MIN (first
.i
, last
.i
);
1201 k
= MAX (first
.i
, last
.i
);
1203 else if (span
== first
.span
) {
1206 else if (span
== last
.span
) {
1210 for (i
= j
; i
<= k
; ++i
) {
1211 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1213 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1220 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1222 if (span
== last
.span
) break;
1224 glDisable (GL_BLEND
);
1227 static void highlightlinks (struct page
*page
, int yoff
)
1232 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1233 glEnable (GL_LINE_STIPPLE
);
1234 glLineStipple (0.5, 0xcccc);
1236 xoff
= page
->pagedim
.left
- page
->pixmap
->x
;
1237 yoff
-= page
->pixmap
->y
;
1240 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1241 fz_point p1
, p2
, p3
, p4
;
1242 fz_matrix ctm
= page
->pagedim
.ctm
;
1244 p1
.x
= link
->rect
.x0
;
1245 p1
.y
= link
->rect
.y0
;
1247 p2
.x
= link
->rect
.x1
;
1248 p2
.y
= link
->rect
.y0
;
1250 p3
.x
= link
->rect
.x1
;
1251 p3
.y
= link
->rect
.y1
;
1253 p4
.x
= link
->rect
.x0
;
1254 p4
.y
= link
->rect
.y1
;
1256 p1
= fz_transform_point (ctm
, p1
);
1257 p2
= fz_transform_point (ctm
, p2
);
1258 p3
= fz_transform_point (ctm
, p3
);
1259 p4
= fz_transform_point (ctm
, p4
);
1261 switch (link
->kind
) {
1262 case PDF_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1263 case PDF_LINK_URI
: glColor3ub (0, 0, 255); break;
1264 default: glColor3ub (0, 0, 0); break;
1267 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1268 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1269 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1270 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1274 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1275 glDisable (GL_LINE_STIPPLE
);
1278 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1283 struct slice
*slice
= &page
->slices
[slicenum
];
1285 w
= page
->pixmap
->w
;
1287 ARSERT (w
== slice
->w
);
1288 if (slice
->texindex
!= -1
1289 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1290 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1294 int index
= (state
.texindex
++ % state
.texcount
);
1297 for (i
= 0; i
< slicenum
; ++i
) {
1298 offset
+= w
* page
->slices
[i
].h
* 4;
1301 if (state
.texowners
[index
].w
== slice
->w
) {
1302 if (state
.texowners
[index
].h
>= slice
->h
) {
1306 state
.texowners
[index
].h
= slice
->h
;
1310 state
.texowners
[index
].h
= slice
->h
;
1313 state
.texowners
[index
].slice
= slice
;
1314 state
.texowners
[index
].w
= slice
->w
;
1315 slice
->texindex
= index
;
1317 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1321 GLenum err
= glGetError ();
1322 if (err
!= GL_NO_ERROR
) {
1323 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1327 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1335 page
->pixmap
->samples
+ offset
1338 GLenum err
= glGetError ();
1339 if (err
!= GL_NO_ERROR
) {
1340 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1346 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1354 page
->pixmap
->samples
+ offset
1361 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1362 subimage
? "sub" : "img",
1363 page
->pageno
, slicenum
,
1365 state
.texids
[slice
->texindex
],
1370 CAMLprim value
ml_draw (value args_v
, value ptr_v
)
1372 CAMLparam2 (args_v
, ptr_v
);
1373 int dispy
= Int_val (Field (args_v
, 0));
1374 int w
= Int_val (Field (args_v
, 1));
1375 int h
= Int_val (Field (args_v
, 2));
1376 int py
= Int_val (Field (args_v
, 3));
1377 int hlinks
= Bool_val (Field (args_v
, 4));
1378 char *s
= String_val (ptr_v
);
1383 int yoff
= dispy
- py
;
1385 ret
= sscanf (s
, "%p", &ptr
);
1387 errx (1, "cannot parse pointer `%s'", s
);
1391 w
= page
->pixmap
->w
;
1393 ARSERT (h
>= 0 && "ml_draw wrong h");
1394 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1396 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1398 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1399 struct slice
*slice
= &page
->slices
[slicenum
];
1400 if (slice
->h
> py
) {
1406 h
= MIN (state
.h
, h
);
1409 struct slice
*slice
= &page
->slices
[slicenum
];
1411 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1413 th
= MIN (h
, slice
->h
- py
);
1414 upload2 (page
, slicenum
, "upload");
1416 left
= page
->pagedim
.left
;
1419 glTexCoord2i (0, py
);
1420 glVertex2i (left
, dispy
);
1422 glTexCoord2i (w
, py
);
1423 glVertex2i (left
+w
, dispy
);
1425 glTexCoord2i (w
, py
+th
);
1426 glVertex2i (left
+w
, dispy
+ th
);
1428 glTexCoord2i (0, py
+th
);
1429 glVertex2i (left
, dispy
+ th
);
1439 showsel (page
, yoff
);
1440 if (hlinks
) highlightlinks (page
, yoff
);
1441 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1443 CAMLreturn (Val_unit
);
1446 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1452 p
.x
= x
+ page
->pixmap
->x
;
1453 p
.y
= y
+ page
->pixmap
->y
;
1455 ctm
= fz_invert_matrix (page
->pagedim
.ctm
);
1456 p
= fz_transform_point (ctm
, p
);
1458 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1459 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1460 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1468 static void ensuretext (struct page
*page
)
1474 page
->text
= fz_new_text_span ();
1475 tdev
= fz_new_text_device (page
->text
);
1476 error
= pdf_run_page (state
.xref
, page
->drawpage
, tdev
,
1478 if (error
) die (error
);
1479 fz_free_device (tdev
);
1483 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1485 CAMLparam3 (ptr_v
, x_v
, y_v
);
1486 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1489 char *s
= String_val (ptr_v
);
1491 ret_v
= Val_int (0);
1492 if (trylock ("ml_whatsunder")) {
1496 page
= parse_pointer ("ml_whatsunder", s
);
1497 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1499 switch (link
->kind
) {
1510 if (fz_is_array (link
->dest
)) {
1511 obj
= fz_array_get (link
->dest
, 0);
1512 if (fz_is_indirect (obj
)) {
1513 pageno
= pdf_find_page_number (state
.xref
, obj
);
1515 else if (fz_is_int (obj
)) {
1516 pageno
= fz_to_int (obj
);
1519 if (fz_array_len (link
->dest
) > 3) {
1522 xo
= fz_array_get (link
->dest
, 2);
1523 yo
= fz_array_get (link
->dest
, 3);
1524 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
1525 p
.x
= fz_to_int (xo
);
1526 p
.y
= fz_to_int (yo
);
1527 p
= fz_transform_point (page
->pagedim
.ctm
, p
);
1532 pageno
= pdf_find_page_number (state
.xref
, link
->dest
);
1534 tup_v
= caml_alloc_tuple (2);
1535 ret_v
= caml_alloc_small (1, 1);
1536 Field (tup_v
, 0) = Val_int (pageno
);
1537 Field (tup_v
, 1) = Val_int (p
.y
);
1538 Field (ret_v
, 0) = tup_v
;
1543 str_v
= caml_copy_string (fz_to_str_buf (link
->dest
));
1544 ret_v
= caml_alloc_small (1, 0);
1545 Field (ret_v
, 0) = str_v
;
1549 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1558 x
= Int_val (x_v
) + page
->pixmap
->x
;
1559 y
= Int_val (y_v
) + page
->pixmap
->y
;
1561 for (span
= page
->text
; span
; span
= span
->next
) {
1562 for (i
= 0; i
< span
->len
; ++i
) {
1564 b
= &span
->text
[i
].bbox
;
1565 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1567 span
->font
&& span
->font
->name
1569 : "Span has no font name"
1571 #ifdef FT_FREETYPE_H
1572 FT_FaceRec
*face
= span
->font
->ft_face
;
1573 if (face
&& face
->family_name
) {
1575 char *n1
= face
->family_name
;
1576 size_t l1
= strlen (n1
);
1577 size_t l2
= strlen (n2
);
1579 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
1580 s
= malloc (l1
+ l2
+ 2);
1584 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
1585 str_v
= caml_copy_string (s
);
1591 str_v
= caml_copy_string (n2
);
1594 str_v
= caml_copy_string (n2
);
1596 ret_v
= caml_alloc_small (1, 2);
1597 Field (ret_v
, 0) = str_v
;
1604 unlock ("ml_whatsunder");
1610 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1612 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1616 struct mark first
, last
;
1617 int i
, x0
, x1
, y0
, y1
, oy
, left
;
1618 char *s
= String_val (ptr_v
);
1620 if (trylock ("ml_seltext")) {
1624 page
= parse_pointer ("ml_seltext", s
);
1627 oy
= Int_val (oy_v
);
1628 x0
= Int_val (Field (rect_v
, 0));
1629 y0
= Int_val (Field (rect_v
, 1));
1630 x1
= Int_val (Field (rect_v
, 2));
1631 y1
= Int_val (Field (rect_v
, 3));
1633 left
= page
->pagedim
.left
;
1635 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1636 glColor3ub (128, 128, 128);
1637 glRecti (x0
, y0
, x1
, y1
);
1638 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1641 x0
+= page
->pixmap
->x
- left
;
1642 y0
+= page
->pixmap
->y
- oy
;
1643 x1
+= page
->pixmap
->x
- left
;
1644 y1
+= page
->pixmap
->y
- oy
;
1649 last
.i
= first
.i
= 0;
1650 first
.span
= page
->text
;
1651 for (span
= page
->text
; span
; span
= span
->next
) {
1652 for (i
= 0; i
< span
->len
; ++i
) {
1653 b
= &span
->text
[i
].bbox
;
1656 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1661 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1666 if (0 && selected
) {
1667 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1668 glColor3ub (128, 128, 128);
1669 glRecti (b
->x0
+left
, b
->y0
, b
->x1
+left
, b
->y1
);
1670 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1675 if (y1
< y0
|| x1
< x0
) {
1678 if (first
.span
== last
.span
) {
1683 for (span
= first
.span
; span
&& span
!= last
.span
;
1684 span
= span
->next
) {
1697 first
.span
= last
.span
;
1703 page
->fmark
= first
;
1706 unlock ("ml_seltext");
1709 CAMLreturn (Val_unit
);
1712 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
1717 for (i
= a
; i
<= b
; ++i
) {
1718 len
= runetochar (buf
, &span
->text
[i
].c
);
1719 ret
= fwrite (buf
, len
, 1, f
);
1722 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1723 len
, ret
, strerror (errno
));
1730 CAMLprim value
ml_copysel (value ptr_v
)
1735 char *s
= String_val (ptr_v
);
1737 if (trylock ("ml_copysel")) {
1744 if (state
.xselpipe
) {
1745 int ret
= pclose (state
.xselpipe
);
1747 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1750 state
.xselpipe
= NULL
;
1753 printf ("========================================\n");
1759 page
= parse_pointer ("ml_sopysel", s
);
1761 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1762 printd (state
.sock
, "T nothing to copy");
1768 if (!state
.xselpipe
) {
1769 state
.xselpipe
= popen ("xsel -i", "w");
1770 if (!state
.xselpipe
) {
1771 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1783 for (span
= page
->fmark
.span
;
1784 span
&& span
!= page
->lmark
.span
->next
;
1785 span
= span
->next
) {
1786 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1787 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1788 if (pipespan (f
, span
, a
, b
)) {
1792 if (putc ('\n', f
) == EOF
) {
1793 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1799 page
->lmark
.span
= NULL
;
1800 page
->fmark
.span
= NULL
;
1804 unlock ("ml_copysel");
1807 CAMLreturn (Val_unit
);
1810 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
1812 CAMLparam1 (pagedimno_v
);
1814 int pagedimno
= Int_val (pagedimno_v
);
1817 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1818 if (trylock ("ml_getpdimrect")) {
1819 box
= fz_empty_rect
;
1822 box
= state
.pagedims
[pagedimno
].box
;
1823 unlock ("ml_getpdimrect");
1826 Store_double_field (ret_v
, 0, box
.x0
);
1827 Store_double_field (ret_v
, 1, box
.x1
);
1828 Store_double_field (ret_v
, 2, box
.y0
);
1829 Store_double_field (ret_v
, 3, box
.y1
);
1834 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
1836 CAMLparam3 (winw_v
, winh_v
, dw_v
);
1840 double maxw
= 0.0, maxh
= 0.0;
1842 double winw
= Int_val (winw_v
);
1843 double winh
= Int_val (winh_v
);
1844 double dw
= Int_val (dw_v
);
1845 double pw
= 1.0, ph
= 1.0, num
, den
;
1847 if (trylock ("ml_zoom_for_height")) {
1851 if (state
.proportional
) {
1852 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1855 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1856 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1859 maxw
= MAX (w
, maxw
);
1863 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1864 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
1866 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1867 y0
= MIN (p
->box
.y0
, p
->box
.y1
);
1868 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1869 y1
= MAX (p
->box
.y0
, p
->box
.y1
);
1874 if (state
.proportional
) {
1876 scaledh
= h
* scale
;
1883 if (scaledh
> maxh
) {
1890 num
= (winh
* pw
) + (ph
* dw
);
1894 unlock ("ml_zoom_for_height");
1896 ret_v
= caml_copy_double (zoom
);
1900 CAMLprim value
ml_init (value sock_v
, value params_v
)
1905 CAMLparam2 (sock_v
, params_v
);
1907 state
.rotate
= Int_val (Field (params_v
, 0));
1908 state
.proportional
= Bool_val (Field (params_v
, 1));
1909 state
.texcount
= Int_val (Field (params_v
, 2));
1910 state
.sliceheight
= Int_val (Field (params_v
, 3));
1911 state
.texform
= GL_RGBA
;
1912 state
.texty
= GL_UNSIGNED_BYTE
;
1915 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1916 if (!state
.texids
) {
1917 err (1, "calloc texids " FMT_s
,
1918 state
.texcount
* sizeof (*state
.texids
));
1921 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1922 if (!state
.texowners
) {
1923 err (1, "calloc texowners " FMT_s
,
1924 state
.texcount
* sizeof (*state
.texowners
));
1927 glGenTextures (state
.texcount
, state
.texids
);
1930 state
.sock
= Socket_val (sock_v
);
1932 state
.sock
= Int_val (sock_v
);
1936 InitializeCriticalSection (&critsec
);
1937 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1938 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1939 errx (1, "CreateThread failed: %lx", GetLastError ());
1942 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1944 errx (1, "pthread_create: %s", strerror (ret
));
1948 CAMLreturn (Val_unit
);