1 /* lots of code c&p-ed directly from mupdf */
8 #define WIN32_LEAN_AND_MEAN
11 #define fionread_arg long
19 #pragma warning (disable:4244)
20 #pragma warning (disable:4996)
21 #pragma warning (disable:4995)
25 #define NORETURN __declspec (noreturn)
27 #elif defined __GNUC__
28 #define NORETURN __attribute__ ((noreturn))
29 #define UNUSED __attribute__ ((unused))
36 static void __declspec (noreturn
) sockerr (int exitcode
, const char *fmt
, ...)
41 vfprintf (stderr
, fmt
, ap
);
43 fprintf (stderr
, ": wsaerror 0x%x\n", WSAGetLastError ());
49 #define fionread_arg int
50 #define ioctlsocket ioctl
63 #include <sys/types.h>
64 #include <sys/socket.h>
65 #include <sys/ioctl.h>
68 static void NORETURN
err (int exitcode
, const char *fmt
, ...)
75 vfprintf (stderr
, fmt
, ap
);
77 fprintf (stderr
, ": %s\n", strerror (savederrno
));
82 static void NORETURN
errx (int exitcode
, const char *fmt
, ...)
87 vfprintf (stderr
, fmt
, ap
);
95 #include <OpenGL/gl.h>
100 #ifndef GL_TEXTURE_RECTANGLE_ARB
101 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
104 #include <caml/fail.h>
105 #include <caml/alloc.h>
106 #include <caml/memory.h>
107 #include <caml/unixsupport.h>
113 #define lprintf printf
119 #include FT_FREETYPE_H
122 #define ARSERT(cond) for (;;) { \
124 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
149 struct pagedim pagedim
;
154 struct slice slices
[];
157 #if !defined _WIN32 && !defined __APPLE__
165 struct pagedim
*pagedims
;
169 fz_glyph_cache
*cache
;
199 static CRITICAL_SECTION critsec
;
201 static void lock (void *unused
)
204 EnterCriticalSection (&critsec
);
207 static void unlock (void *unused
)
210 LeaveCriticalSection (&critsec
);
213 static int trylock (void *unused
)
215 return TryEnterCriticalSection (&critsec
) == 0;
218 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
220 static void lock (const char *cap
)
222 int ret
= pthread_mutex_lock (&mutex
);
224 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
228 static void unlock (const char *cap
)
230 int ret
= pthread_mutex_unlock (&mutex
);
232 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
236 static int trylock (const char *cap
)
238 int ret
= pthread_mutex_trylock (&mutex
);
240 if (ret
&& ret
!= EBUSY
) {
241 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
247 static void *parse_pointer (const char *cap
, const char *s
)
252 ret
= sscanf (s
, "%p", &ptr
);
254 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
259 static int hasdata (int sock
)
263 ret
= ioctlsocket (sock
, FIONREAD
, &avail
);
264 if (ret
) sockerr (1, "hasdata: FIONREAD error ret=%d", ret
);
268 static double now (void)
272 if (gettimeofday (&tv
, NULL
)) {
273 err (1, "gettimeofday");
275 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
278 static void readdata (int fd
, char *p
, int size
)
282 n
= recv (fd
, p
, size
, 0);
284 if (!n
) errx (1, "EOF while reading");
285 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
289 static void writedata (int fd
, char *p
, int size
)
294 buf
[0] = (size
>> 24) & 0xff;
295 buf
[1] = (size
>> 16) & 0xff;
296 buf
[2] = (size
>> 8) & 0xff;
297 buf
[3] = (size
>> 0) & 0xff;
299 n
= send (fd
, buf
, 4, 0);
301 if (!n
) errx (1, "EOF while writing length");
302 sockerr (1, "send " FMT_ss
, n
);
305 n
= send (fd
, p
, size
, 0);
307 if (!n
) errx (1, "EOF while writing data");
308 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
314 __attribute__ ((format (printf
, 2, 3)))
316 printd (int fd
, const char *fmt
, ...)
324 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
327 len
= vsnprintf (buf
, size
, fmt
, ap
);
330 if (len
> -1 && len
< size
) {
331 writedata (fd
, buf
, len
);
341 buf
= realloc (buf
, size
);
346 static void die (fz_error error
)
348 fz_catch (error
, "aborting");
350 pdf_free_xref (state
.xref
);
354 static void openxref (char *filename
, char *password
)
359 for (i
= 0; i
< state
.texcount
; ++i
) {
360 state
.texowners
[i
].slice
= NULL
;
364 fz_free_glyph_cache (state
.cache
);
367 state
.cache
= fz_new_glyph_cache ();
369 errx (1, "fz_newglyph_cache failed");
373 if (state
.xref
->store
) {
374 pdf_free_store (state
.xref
->store
);
375 state
.xref
->store
= NULL
;
377 pdf_free_xref (state
.xref
);
381 if (state
.pagedims
) {
382 free (state
.pagedims
);
383 state
.pagedims
= NULL
;
385 state
.pagedimcount
= 0;
387 error
= pdf_open_xref (&state
.xref
, filename
, password
);
392 error
= pdf_load_page_tree (state
.xref
);
397 state
.pagecount
= pdf_count_pages (state
.xref
);
400 static void pdfinfo (void)
404 printd (state
.sock
, "i PDF version\t%d.%d",
405 state
.xref
->version
/ 10, state
.xref
->version
% 10);
407 infoobj
= fz_dict_gets (state
.xref
->trailer
, "Info");
411 char *items
[] = { "Title", "Creator", "Producer", "CreationDate" };
413 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
414 fz_obj
*obj
= fz_dict_gets (infoobj
, items
[i
]);
415 s
= pdf_to_utf8 (obj
);
418 printd (state
.sock
, "t %s", s
);
420 printd (state
.sock
, "i %s\t%s", items
[i
], s
);
424 printd (state
.sock
, "ie");
428 static int readlen (int fd
)
433 n
= recv (fd
, p
, 4, 0);
435 if (!n
) errx (1, "EOF while reading length");
436 sockerr (1, "recv " FMT_ss
, n
);
439 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
442 static void unlinkpage (struct page
*page
)
446 for (i
= 0; i
< page
->slicecount
; ++i
) {
447 struct slice
*s
= &page
->slices
[i
];
448 if (s
->texindex
!= -1) {
449 if (state
.texowners
[s
->texindex
].slice
== s
) {
450 state
.texowners
[s
->texindex
].slice
= NULL
;
451 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
452 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
458 static void freepage (struct page
*page
)
460 fz_drop_pixmap (page
->pixmap
);
465 fz_free_text_span (page
->text
);
467 if (page
->drawpage
) {
468 pdf_free_page (page
->drawpage
);
474 static void subdivide (struct page
*p
)
477 int h
= p
->pixmap
->h
;
478 int th
= MIN (h
, state
.sliceheight
);
480 for (i
= 0; i
< p
->slicecount
; ++i
) {
481 struct slice
*s
= &p
->slices
[i
];
489 static int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
491 return p1
->rotate
== p2
->rotate
492 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
493 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
499 static int cacheline32bytes
;
500 extern char **environ
;
502 static void __attribute__ ((constructor
)) clcheck (void)
504 char **envp
= environ
;
509 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
511 cacheline32bytes
= auxv
[1] == 32;
517 static void __attribute__ ((optimize ("O"))) clearpixmap (fz_pixmap
*pixmap
)
519 if (cacheline32bytes
) {
520 intptr_t a1
, a2
, diff
;
521 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
522 vector
unsigned char v
= vec_splat_u8 (-1);
523 vector
unsigned char *p
;
525 a1
= a2
= (intptr_t) pixmap
->samples
;
526 a2
= (a1
+ 31) & ~31;
531 while (a1
!= a2
) *(char *) a1
++ = 0xff;
532 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
533 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
535 vec_st (v
, i
+ 16, p
);
537 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
539 else fz_clear_pixmap_with_color (pixmap
, 0xff);
542 #define clearpixmap(p) fz_clear_pixmap_with_color (p, 0xff)
545 static void *render (int pageno
, int pindex
)
549 struct page
*page
= NULL
;
553 struct pagedim
*pagedim
;
556 printd (state
.sock
, "V rendering %d", pageno
);
558 pagedim
= &state
.pagedims
[pindex
];
559 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
560 + state
.sliceheight
- 1) / state
.sliceheight
;
561 slicecount
+= slicecount
== 0;
564 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
567 fz_free_text_span (page
->text
);
570 if (page
->drawpage
) {
571 pdf_free_page (page
->drawpage
);
572 page
->drawpage
= NULL
;
576 freepage (state
.pig
);
580 page
= calloc (sizeof (*page
)
581 + (slicecount
* sizeof (struct slice
)), 1);
583 err (1, "calloc page %d\n", pageno
);
585 page
->pixmap
= fz_new_pixmap_with_rect (fz_device_rgb
, pagedim
->bbox
);
588 page
->slicecount
= slicecount
;
590 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
- 1);
594 clearpixmap (page
->pixmap
);
596 idev
= fz_new_draw_device (state
.cache
, page
->pixmap
);
598 die (fz_throw ("fz_newdrawdevice failed"));
599 error
= pdf_run_page (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
601 die (fz_rethrow (error
, "pdf_runpage failed"));
602 fz_free_device (idev
);
604 page
->drawpage
= drawpage
;
605 page
->pagedim
= *pagedim
;
606 page
->pageno
= pageno
;
610 pdf_age_store (state
.xref
->store
, 3);
612 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
617 static void initpdims (void)
623 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
627 fz_obj
*obj
, *pageobj
;
629 pageobj
= state
.xref
->page_objs
[pageno
];
631 obj
= fz_dict_gets (pageobj
, "CropBox");
632 if (!fz_is_array (obj
)) {
633 obj
= fz_dict_gets (pageobj
, "MediaBox");
634 if (!fz_is_array (obj
)) {
635 die (fz_throw ("cannot find page bounds %d (%d Rd)",
636 fz_to_num (pageobj
), fz_to_gen (pageobj
)));
639 box
= pdf_to_rect (obj
);
641 obj
= fz_dict_gets (pageobj
, "Rotate");
642 if (fz_is_int (obj
)) {
643 rotate
= fz_to_int (obj
);
648 rotate
+= state
.rotate
;
650 p
= &state
.pagedims
[state
.pagedimcount
- 1];
651 if ((state
.pagedimcount
== 0)
652 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
655 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
656 state
.pagedims
= realloc (state
.pagedims
, size
);
657 if (!state
.pagedims
) {
658 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
659 size
, state
.pagedimcount
+ 1);
661 p
= &state
.pagedims
[state
.pagedimcount
++];
668 printd (state
.sock
, "T Processed %d pages in %f seconds",
669 state
.pagecount
, end
- start
);
672 static void layout (void)
677 double zoom
, w
, maxw
= 0;
678 struct pagedim
*p
= state
.pagedims
;
680 if (state
.proportional
) {
681 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
682 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
683 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
684 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
685 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
688 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
689 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
690 box2
= fz_transform_rect (ctm
, box
);
691 w
= box2
.x1
- box2
.x0
;
692 maxw
= MAX (w
, maxw
);
697 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
698 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
699 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
700 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
701 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
704 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
705 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
706 box2
= fz_transform_rect (ctm
, box
);
707 w
= box2
.x1
- box2
.x0
;
709 if (state
.proportional
) {
710 double scale
= w
/ maxw
;
711 zoom
= (state
.w
/ w
) * scale
;
717 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
718 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
719 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
720 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
721 p
->bbox
= fz_round_rect (fz_transform_rect (ctm
, box
));
722 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
723 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
726 while (p
-- != state
.pagedims
) {
727 printd (state
.sock
, "l %d %d %d %d",
728 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
,
733 static void recurse_outline (pdf_outline
*outline
, int level
)
741 if (!outline
->link
) goto next
;
743 obj
= outline
->link
->dest
;
744 if (fz_is_indirect (obj
)) {
745 obj
= fz_resolve_indirect (obj
);
747 if (fz_is_array (obj
)) {
750 obj2
= fz_array_get (obj
, 0);
751 if (fz_is_int (obj2
)) {
752 pageno
= fz_to_int (obj2
);
755 pageno
= pdf_find_page_number (state
.xref
, obj2
);
758 if (fz_array_len (obj
) > 3) {
762 xo
= fz_array_get (obj
, 2);
763 yo
= fz_array_get (obj
, 3);
764 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
765 struct pagedim
*pagedim
= state
.pagedims
;
767 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
768 if (state
.pagedims
[i
].pageno
> pageno
)
770 pagedim
= &state
.pagedims
[i
];
772 p
.x
= fz_to_int (xo
);
773 p
.y
= fz_to_int (yo
);
774 p
= fz_transform_point (pagedim
->ctm
, p
);
775 h
= pagedim
->bbox
.y1
- pagedim
->bbox
.y0
;
781 pageno
= pdf_find_page_number (state
.xref
, outline
->link
->dest
);
784 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
786 printd (state
.sock
, "o %d %d %d %d %s",
787 level
, pageno
, top
, h
, outline
->title
);
790 if (outline
->child
) {
791 recurse_outline (outline
->child
, level
+ 1);
793 outline
= outline
->next
;
797 static void process_outline (void)
799 pdf_outline
*outline
;
801 if (!state
.needoutline
) return;
803 state
.needoutline
= 0;
804 outline
= pdf_load_outline (state
.xref
);
806 recurse_outline (outline
, 0);
807 pdf_free_outline (outline
);
811 static int comparespans (const void *l
, const void *r
)
813 fz_text_span
const *const*ls
= l
;
814 fz_text_span
const *const*rs
= r
;
815 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
818 /* wishful thinking function */
819 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
829 fz_text_span
*text
, *span
, **pspan
;
830 struct pagedim
*pdim
, *pdimprev
;
837 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
839 pdf_age_store (state
.xref
->store
, 3);
841 if (hasdata (state
.sock
)) {
842 printd (state
.sock
, "T attention requested aborting search at %d",
847 printd (state
.sock
, "T searching in page %d", pageno
);
851 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
852 pdim
= &state
.pagedims
[i
];
853 if (pdim
->pageno
== pageno
) {
856 if (pdim
->pageno
> pageno
) {
865 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
);
869 ctm
= fz_rotate (pdim
->rotate
);
871 text
= fz_new_text_span ();
872 tdev
= fz_new_text_device (text
);
873 error
= pdf_run_page (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
874 if (error
) die (error
);
875 fz_free_device (tdev
);
878 for (span
= text
; span
; span
= span
->next
) {
881 pspan
= malloc (sizeof (void *) * nspans
);
883 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
885 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
888 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
890 j
= forward
? 0 : nspans
- 1;
895 j
+= forward
? 1 : -1;
897 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
899 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
904 if (span
->text
[i
].bbox
.y0
> y
- 1) {
908 if (span
->text
[i
].c
< 256) {
909 *p
++ = span
->text
[i
].c
;
920 ret
= regexec (re
, buf
, 1, &rm
, 0);
922 if (ret
!= REG_NOMATCH
) {
925 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
927 "T regexec error `%.*s'",
929 fz_free_text_span (text
);
930 pdf_free_page (drawpage
);
938 fz_point p1
, p2
, p3
, p4
;
940 xoff
= pdim
->left
- pdim
->bbox
.x0
;
941 yoff
= -pdim
->bbox
.y0
;
943 sb
= &span
->text
[rm
.rm_so
].bbox
;
944 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
955 p1
= fz_transform_point (ctm
, p1
);
956 p2
= fz_transform_point (ctm
, p2
);
957 p3
= fz_transform_point (ctm
, p3
);
958 p4
= fz_transform_point (ctm
, p4
);
961 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
963 p1
.x
+ xoff
, p1
.y
+ yoff
,
964 p2
.x
+ xoff
, p2
.y
+ yoff
,
965 p3
.x
+ xoff
, p3
.y
+ yoff
,
966 p4
.x
+ xoff
, p4
.y
+ yoff
);
968 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
969 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
973 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
975 p1
.x
+ xoff
, p1
.y
+ yoff
,
976 p2
.x
+ xoff
, p2
.y
+ yoff
,
977 p3
.x
+ xoff
, p3
.y
+ yoff
,
978 p4
.x
+ xoff
, p4
.y
+ yoff
);
991 fz_free_text_span (text
);
992 pdf_free_page (drawpage
);
997 printd (state
.sock
, "T no matches %f sec", end
- start
);
999 printd (state
.sock
, "D");
1008 mainloop (void *unused
)
1011 int len
, ret
, oldlen
= 0;
1014 len
= readlen (state
.sock
);
1016 errx (1, "readlen returned 0");
1019 if (oldlen
< len
+ 1) {
1020 p
= realloc (p
, len
+ 1);
1022 err (1, "realloc %d failed", len
+ 1);
1026 readdata (state
.sock
, p
, len
);
1029 if (!strncmp ("open", p
, 4)) {
1032 char *filename
= p
+ 5;
1034 filenamelen
= strlen (filename
);
1035 password
= filename
+ filenamelen
+ 1;
1037 openxref (filename
, password
);
1040 state
.needoutline
= 1;
1042 else if (!strncmp ("free", p
, 4)) {
1045 ret
= sscanf (p
+ 4, " %p", &ptr
);
1047 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
1052 else if (!strncmp ("search", p
, 6)) {
1053 int icase
, pageno
, y
, ret
, len2
, forward
;
1057 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1058 &icase
, &pageno
, &y
, &forward
, &len2
);
1060 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1063 pattern
= p
+ 6 + len2
;
1064 ret
= regcomp (&re
, pattern
,
1065 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1070 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1071 printd (state
.sock
, "T regcomp failed `%.*s'",
1072 (int) size
, errbuf
);
1075 search (&re
, pageno
, y
, forward
);
1079 else if (!strncmp ("geometry", p
, 8)) {
1082 printd (state
.sock
, "c");
1083 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1085 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1093 for (i
= 0; i
< state
.texcount
; ++i
) {
1094 state
.texowners
[i
].slice
= NULL
;
1099 unlock ("geometry");
1100 printd (state
.sock
, "C %d", state
.pagecount
);
1102 else if (!strncmp ("reinit", p
, 6)) {
1106 printd (state
.sock
, "c");
1107 ret
= sscanf (p
+ 6, " %f %d", &rotate
, &proportional
);
1109 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
1112 state
.rotate
= rotate
;
1113 state
.proportional
= proportional
;
1114 state
.pagedimcount
= 0;
1115 free (state
.pagedims
);
1116 state
.pagedims
= NULL
;
1121 freepage (state
.pig
);
1125 printd (state
.sock
, "C %d", state
.pagecount
);
1127 else if (!strncmp ("render", p
, 6)) {
1128 int pageno
, pindex
, w
, h
, ret
;
1131 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
1133 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1137 page
= render (pageno
, pindex
);
1140 printd (state
.sock
, "r %d %d %d %d %d %d %p",
1149 else if (!strncmp ("interrupt", p
, 9)) {
1150 printd (state
.sock
, "V interrupted");
1153 errx (1, "unknown command %.*s", len
, p
);
1159 static void showsel (struct page
*page
, int oy
)
1164 struct mark first
, last
;
1166 first
= page
->fmark
;
1169 if (!first
.span
|| !last
.span
) return;
1171 glEnable (GL_BLEND
);
1172 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1173 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1175 ox
= -page
->pixmap
->x
+ page
->pagedim
.left
;
1176 oy
= -page
->pixmap
->y
+ oy
;
1177 for (span
= first
.span
; span
; span
= span
->next
) {
1180 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1185 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1186 j
= MIN (first
.i
, last
.i
);
1187 k
= MAX (first
.i
, last
.i
);
1189 else if (span
== first
.span
) {
1192 else if (span
== last
.span
) {
1196 for (i
= j
; i
<= k
; ++i
) {
1197 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1199 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1206 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1208 if (span
== last
.span
) break;
1210 glDisable (GL_BLEND
);
1213 static void highlightlinks (struct page
*page
, int yoff
)
1218 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1219 glEnable (GL_LINE_STIPPLE
);
1220 glLineStipple (0.5, 0xcccc);
1222 xoff
= page
->pagedim
.left
- page
->pixmap
->x
;
1223 yoff
-= page
->pixmap
->y
;
1226 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1227 fz_point p1
, p2
, p3
, p4
;
1228 fz_matrix ctm
= page
->pagedim
.ctm
;
1230 p1
.x
= link
->rect
.x0
;
1231 p1
.y
= link
->rect
.y0
;
1233 p2
.x
= link
->rect
.x1
;
1234 p2
.y
= link
->rect
.y0
;
1236 p3
.x
= link
->rect
.x1
;
1237 p3
.y
= link
->rect
.y1
;
1239 p4
.x
= link
->rect
.x0
;
1240 p4
.y
= link
->rect
.y1
;
1242 p1
= fz_transform_point (ctm
, p1
);
1243 p2
= fz_transform_point (ctm
, p2
);
1244 p3
= fz_transform_point (ctm
, p3
);
1245 p4
= fz_transform_point (ctm
, p4
);
1247 switch (link
->kind
) {
1248 case PDF_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1249 case PDF_LINK_URI
: glColor3ub (0, 0, 255); break;
1250 default: glColor3ub (0, 0, 0); break;
1253 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1254 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1255 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1256 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1260 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1261 glDisable (GL_LINE_STIPPLE
);
1264 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1269 struct slice
*slice
= &page
->slices
[slicenum
];
1271 w
= page
->pixmap
->w
;
1273 ARSERT (w
== slice
->w
);
1274 if (slice
->texindex
!= -1
1275 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1276 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1280 int index
= (state
.texindex
++ % state
.texcount
);
1283 for (i
= 0; i
< slicenum
; ++i
) {
1284 offset
+= w
* page
->slices
[i
].h
* 4;
1287 if (state
.texowners
[index
].w
== slice
->w
) {
1288 if (state
.texowners
[index
].h
>= slice
->h
) {
1292 state
.texowners
[index
].h
= slice
->h
;
1296 state
.texowners
[index
].h
= slice
->h
;
1299 state
.texowners
[index
].slice
= slice
;
1300 state
.texowners
[index
].w
= slice
->w
;
1301 slice
->texindex
= index
;
1303 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1307 GLenum err
= glGetError ();
1308 if (err
!= GL_NO_ERROR
) {
1309 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1313 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1321 page
->pixmap
->samples
+ offset
1324 GLenum err
= glGetError ();
1325 if (err
!= GL_NO_ERROR
) {
1326 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1332 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1340 page
->pixmap
->samples
+ offset
1347 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1348 subimage
? "sub" : "img",
1349 page
->pageno
, slicenum
,
1351 state
.texids
[slice
->texindex
],
1356 CAMLprim value
ml_draw (value args_v
, value ptr_v
)
1358 CAMLparam2 (args_v
, ptr_v
);
1359 int dispy
= Int_val (Field (args_v
, 0));
1360 int w
= Int_val (Field (args_v
, 1));
1361 int h
= Int_val (Field (args_v
, 2));
1362 int py
= Int_val (Field (args_v
, 3));
1363 int hlinks
= Bool_val (Field (args_v
, 4));
1364 char *s
= String_val (ptr_v
);
1369 int yoff
= dispy
- py
;
1371 ret
= sscanf (s
, "%p", &ptr
);
1373 errx (1, "cannot parse pointer `%s'", s
);
1377 w
= page
->pixmap
->w
;
1379 ARSERT (h
>= 0 && "ml_draw wrong h");
1380 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1382 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1384 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1385 struct slice
*slice
= &page
->slices
[slicenum
];
1386 if (slice
->h
> py
) {
1392 h
= MIN (state
.h
, h
);
1395 struct slice
*slice
= &page
->slices
[slicenum
];
1397 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1399 th
= MIN (h
, slice
->h
- py
);
1400 upload2 (page
, slicenum
, "upload");
1402 left
= page
->pagedim
.left
;
1405 glTexCoord2i (0, py
);
1406 glVertex2i (left
, dispy
);
1408 glTexCoord2i (w
, py
);
1409 glVertex2i (left
+w
, dispy
);
1411 glTexCoord2i (w
, py
+th
);
1412 glVertex2i (left
+w
, dispy
+ th
);
1414 glTexCoord2i (0, py
+th
);
1415 glVertex2i (left
, dispy
+ th
);
1425 showsel (page
, yoff
);
1426 if (hlinks
) highlightlinks (page
, yoff
);
1427 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1429 CAMLreturn (Val_unit
);
1432 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1438 p
.x
= x
+ page
->pixmap
->x
;
1439 p
.y
= y
+ page
->pixmap
->y
;
1441 ctm
= fz_invert_matrix (page
->pagedim
.ctm
);
1442 p
= fz_transform_point (ctm
, p
);
1444 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1445 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1446 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1454 static void ensuretext (struct page
*page
)
1460 page
->text
= fz_new_text_span ();
1461 tdev
= fz_new_text_device (page
->text
);
1462 error
= pdf_run_page (state
.xref
, page
->drawpage
, tdev
,
1464 if (error
) die (error
);
1465 fz_free_device (tdev
);
1469 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1471 CAMLparam3 (ptr_v
, x_v
, y_v
);
1472 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1475 char *s
= String_val (ptr_v
);
1477 ret_v
= Val_int (0);
1478 if (trylock ("ml_whatsunder")) {
1482 page
= parse_pointer ("ml_whatsunder", s
);
1483 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1485 switch (link
->kind
) {
1496 if (fz_is_array (link
->dest
)) {
1497 obj
= fz_array_get (link
->dest
, 0);
1498 if (fz_is_indirect (obj
)) {
1499 pageno
= pdf_find_page_number (state
.xref
, obj
);
1501 else if (fz_is_int (obj
)) {
1502 pageno
= fz_to_int (obj
);
1505 if (fz_array_len (link
->dest
) > 3) {
1508 xo
= fz_array_get (link
->dest
, 2);
1509 yo
= fz_array_get (link
->dest
, 3);
1510 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
1511 p
.x
= fz_to_int (xo
);
1512 p
.y
= fz_to_int (yo
);
1513 p
= fz_transform_point (page
->pagedim
.ctm
, p
);
1518 pageno
= pdf_find_page_number (state
.xref
, link
->dest
);
1520 tup_v
= caml_alloc_tuple (2);
1521 ret_v
= caml_alloc_small (1, 1);
1522 Field (tup_v
, 0) = Val_int (pageno
);
1523 Field (tup_v
, 1) = Val_int (p
.y
);
1524 Field (ret_v
, 0) = tup_v
;
1529 str_v
= caml_copy_string (fz_to_str_buf (link
->dest
));
1530 ret_v
= caml_alloc_small (1, 0);
1531 Field (ret_v
, 0) = str_v
;
1535 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1544 x
= Int_val (x_v
) + page
->pixmap
->x
;
1545 y
= Int_val (y_v
) + page
->pixmap
->y
;
1547 for (span
= page
->text
; span
; span
= span
->next
) {
1548 for (i
= 0; i
< span
->len
; ++i
) {
1550 b
= &span
->text
[i
].bbox
;
1551 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1553 span
->font
&& span
->font
->name
1555 : "Span has no font name"
1557 #ifdef FT_FREETYPE_H
1558 FT_FaceRec
*face
= span
->font
->ft_face
;
1559 if (face
&& face
->family_name
) {
1561 char *n1
= face
->family_name
;
1562 size_t l1
= strlen (n1
);
1563 size_t l2
= strlen (n2
);
1565 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
1566 s
= malloc (l1
+ l2
+ 2);
1570 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
1571 str_v
= caml_copy_string (s
);
1577 str_v
= caml_copy_string (n2
);
1580 str_v
= caml_copy_string (n2
);
1582 ret_v
= caml_alloc_small (1, 2);
1583 Field (ret_v
, 0) = str_v
;
1590 unlock ("ml_whatsunder");
1596 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1598 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1602 struct mark first
, last
;
1603 int i
, x0
, x1
, y0
, y1
, oy
, left
;
1604 char *s
= String_val (ptr_v
);
1606 if (trylock ("ml_seltext")) {
1610 page
= parse_pointer ("ml_seltext", s
);
1613 oy
= Int_val (oy_v
);
1614 x0
= Int_val (Field (rect_v
, 0));
1615 y0
= Int_val (Field (rect_v
, 1));
1616 x1
= Int_val (Field (rect_v
, 2));
1617 y1
= Int_val (Field (rect_v
, 3));
1619 left
= page
->pagedim
.left
;
1621 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1622 glColor3ub (128, 128, 128);
1623 glRecti (x0
, y0
, x1
, y1
);
1624 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1627 x0
+= page
->pixmap
->x
- left
;
1628 y0
+= page
->pixmap
->y
- oy
;
1629 x1
+= page
->pixmap
->x
- left
;
1630 y1
+= page
->pixmap
->y
- oy
;
1635 last
.i
= first
.i
= 0;
1636 first
.span
= page
->text
;
1637 for (span
= page
->text
; span
; span
= span
->next
) {
1638 for (i
= 0; i
< span
->len
; ++i
) {
1639 b
= &span
->text
[i
].bbox
;
1642 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1647 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1652 if (0 && selected
) {
1653 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1654 glColor3ub (128, 128, 128);
1655 glRecti (b
->x0
+left
, b
->y0
, b
->x1
+left
, b
->y1
);
1656 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1661 if (y1
< y0
|| x1
< x0
) {
1664 if (first
.span
== last
.span
) {
1669 for (span
= first
.span
; span
&& span
!= last
.span
;
1670 span
= span
->next
) {
1683 first
.span
= last
.span
;
1689 page
->fmark
= first
;
1692 unlock ("ml_seltext");
1695 CAMLreturn (Val_unit
);
1698 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
1703 for (i
= a
; i
<= b
; ++i
) {
1704 len
= runetochar (buf
, &span
->text
[i
].c
);
1705 ret
= fwrite (buf
, len
, 1, f
);
1708 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1709 len
, ret
, strerror (errno
));
1716 CAMLprim value
ml_copysel (value ptr_v
)
1721 char *s
= String_val (ptr_v
);
1723 if (trylock ("ml_copysel")) {
1730 if (state
.xselpipe
) {
1731 int ret
= pclose (state
.xselpipe
);
1733 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1736 state
.xselpipe
= NULL
;
1739 printf ("========================================\n");
1745 page
= parse_pointer ("ml_sopysel", s
);
1747 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1748 printd (state
.sock
, "T nothing to copy");
1754 if (!state
.xselpipe
) {
1755 state
.xselpipe
= popen ("xsel -i", "w");
1756 if (!state
.xselpipe
) {
1757 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1769 for (span
= page
->fmark
.span
;
1770 span
&& span
!= page
->lmark
.span
->next
;
1771 span
= span
->next
) {
1772 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1773 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1774 if (pipespan (f
, span
, a
, b
)) {
1778 if (putc ('\n', f
) == EOF
) {
1779 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1785 page
->lmark
.span
= NULL
;
1786 page
->fmark
.span
= NULL
;
1790 unlock ("ml_copysel");
1793 CAMLreturn (Val_unit
);
1796 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
1798 CAMLparam1 (pagedimno_v
);
1800 int pagedimno
= Int_val (pagedimno_v
);
1803 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1804 if (trylock ("ml_getpdimrect")) {
1805 box
= fz_empty_rect
;
1808 box
= state
.pagedims
[pagedimno
].box
;
1809 unlock ("ml_getpdimrect");
1812 Store_double_field (ret_v
, 0, box
.x0
);
1813 Store_double_field (ret_v
, 1, box
.x1
);
1814 Store_double_field (ret_v
, 2, box
.y0
);
1815 Store_double_field (ret_v
, 3, box
.y1
);
1820 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
1822 CAMLparam3 (winw_v
, winh_v
, dw_v
);
1826 double maxw
= 0.0, maxh
= 0.0;
1828 double winw
= Int_val (winw_v
);
1829 double winh
= Int_val (winh_v
);
1830 double dw
= Int_val (dw_v
);
1831 double pw
= 1.0, ph
= 1.0, num
, den
;
1833 if (trylock ("ml_zoom_for_height")) {
1837 if (state
.proportional
) {
1838 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1841 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1842 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1845 maxw
= MAX (w
, maxw
);
1849 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1850 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
1852 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1853 y0
= MIN (p
->box
.y0
, p
->box
.y1
);
1854 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1855 y1
= MAX (p
->box
.y0
, p
->box
.y1
);
1860 if (state
.proportional
) {
1862 scaledh
= h
* scale
;
1869 if (scaledh
> maxh
) {
1876 num
= (winh
* pw
) + (ph
* dw
);
1880 unlock ("ml_zoom_for_height");
1882 ret_v
= caml_copy_double (zoom
);
1888 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
1890 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
1891 int pt
= Int_val(pt_v
);
1892 int x
= Int_val (x_v
);
1893 int y
= Int_val (y_v
);
1896 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
1897 CAMLreturn (caml_copy_double (w
));
1900 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
1902 CAMLparam2 (pt_v
, string_v
);
1904 int pt
= Int_val (pt_v
);
1907 w
= measure_string (state
.face
, pt
, String_val (string_v
));
1908 CAMLreturn (caml_copy_double (w
));
1911 CAMLprim value
ml_init (value sock_v
, value params_v
)
1913 CAMLparam2 (sock_v
, params_v
);
1919 state
.rotate
= Int_val (Field (params_v
, 0));
1920 state
.proportional
= Bool_val (Field (params_v
, 1));
1921 state
.texcount
= Int_val (Field (params_v
, 2));
1922 state
.sliceheight
= Int_val (Field (params_v
, 3));
1923 fontpath
= String_val (Field (params_v
, 4));
1924 state
.texform
= GL_RGBA
;
1925 state
.texty
= GL_UNSIGNED_BYTE
;
1928 state
.face
= load_font (fontpath
);
1932 void *base
= pdf_find_substitute_font (0, 0, 0, 0, &len
);
1934 state
.face
= load_builtin_font (base
, len
);
1936 if (!state
.face
) _exit (1);
1939 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1940 if (!state
.texids
) {
1941 err (1, "calloc texids " FMT_s
,
1942 state
.texcount
* sizeof (*state
.texids
));
1945 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1946 if (!state
.texowners
) {
1947 err (1, "calloc texowners " FMT_s
,
1948 state
.texcount
* sizeof (*state
.texowners
));
1951 glGenTextures (state
.texcount
, state
.texids
);
1954 state
.sock
= Socket_val (sock_v
);
1956 state
.sock
= Int_val (sock_v
);
1960 InitializeCriticalSection (&critsec
);
1961 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1962 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1963 errx (1, "CreateThread failed: %lx", GetLastError ());
1966 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1968 errx (1, "pthread_create: %s", strerror (ret
));
1972 CAMLreturn (Val_unit
);