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)
29 #elif defined __GNUC__
30 #define NORETURN __attribute__ ((noreturn))
31 #define UNUSED __attribute__ ((unused))
38 static void __declspec (noreturn
) sockerr (int exitcode
, const char *fmt
, ...)
43 vfprintf (stderr
, fmt
, ap
);
45 fprintf (stderr
, ": wsaerror 0x%x\n", WSAGetLastError ());
51 #define fionread_arg int
52 #define ioctlsocket ioctl
65 #include <sys/types.h>
66 #include <sys/socket.h>
67 #include <sys/ioctl.h>
70 static void NORETURN
err (int exitcode
, const char *fmt
, ...)
77 vfprintf (stderr
, fmt
, ap
);
79 fprintf (stderr
, ": %s\n", strerror (savederrno
));
84 static void NORETURN
errx (int exitcode
, const char *fmt
, ...)
89 vfprintf (stderr
, fmt
, ap
);
97 #include <OpenGL/gl.h>
102 #ifndef GL_TEXTURE_RECTANGLE_ARB
103 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
106 #include <caml/fail.h>
107 #include <caml/alloc.h>
108 #include <caml/memory.h>
109 #include <caml/unixsupport.h>
115 #define lprintf printf
121 #include FT_FREETYPE_H
124 #define ARSERT(cond) for (;;) { \
126 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
151 struct pagedim pagedim
;
156 struct slice slices
[];
159 #if !defined _WIN32 && !defined __APPLE__
167 struct pagedim
*pagedims
;
171 fz_glyph_cache
*cache
;
201 static CRITICAL_SECTION critsec
;
203 static void lock (void *unused
)
206 EnterCriticalSection (&critsec
);
209 static void unlock (void *unused
)
212 LeaveCriticalSection (&critsec
);
215 static int trylock (void *unused
)
217 return TryEnterCriticalSection (&critsec
) == 0;
220 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
222 static void lock (const char *cap
)
224 int ret
= pthread_mutex_lock (&mutex
);
226 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
230 static void unlock (const char *cap
)
232 int ret
= pthread_mutex_unlock (&mutex
);
234 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
238 static int trylock (const char *cap
)
240 int ret
= pthread_mutex_trylock (&mutex
);
242 if (ret
&& ret
!= EBUSY
) {
243 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
249 static void *parse_pointer (const char *cap
, const char *s
)
254 ret
= sscanf (s
, "%p", &ptr
);
256 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
261 static int hasdata (int sock
)
265 ret
= ioctlsocket (sock
, FIONREAD
, &avail
);
266 if (ret
) sockerr (1, "hasdata: FIONREAD error ret=%d", ret
);
270 static double now (void)
274 if (gettimeofday (&tv
, NULL
)) {
275 err (1, "gettimeofday");
277 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
280 static void readdata (int fd
, char *p
, int size
)
284 n
= recv (fd
, p
, size
, 0);
286 if (!n
) errx (1, "EOF while reading");
287 sockerr (1, "recv (req %d, ret " FMT_ss
")", size
, n
);
291 static void writedata (int fd
, char *p
, int size
)
296 buf
[0] = (size
>> 24) & 0xff;
297 buf
[1] = (size
>> 16) & 0xff;
298 buf
[2] = (size
>> 8) & 0xff;
299 buf
[3] = (size
>> 0) & 0xff;
301 n
= send (fd
, buf
, 4, 0);
303 if (!n
) errx (1, "EOF while writing length");
304 sockerr (1, "send " FMT_ss
, n
);
307 n
= send (fd
, p
, size
, 0);
309 if (!n
) errx (1, "EOF while writing data");
310 sockerr (1, "send (req %d, ret " FMT_ss
")", size
, n
);
316 __attribute__ ((format (printf
, 2, 3)))
318 printd (int fd
, const char *fmt
, ...)
326 if (!buf
) err (errno
, "malloc for temp buf (%d bytes) failed", size
);
329 len
= vsnprintf (buf
, size
, fmt
, ap
);
332 if (len
> -1 && len
< size
) {
333 writedata (fd
, buf
, len
);
343 buf
= realloc (buf
, size
);
348 static void die (fz_error error
)
350 fz_catch (error
, "aborting");
352 pdf_free_xref (state
.xref
);
356 static void openxref (char *filename
, char *password
)
361 for (i
= 0; i
< state
.texcount
; ++i
) {
362 state
.texowners
[i
].slice
= NULL
;
366 fz_free_glyph_cache (state
.cache
);
369 state
.cache
= fz_new_glyph_cache ();
371 errx (1, "fz_newglyph_cache failed");
375 if (state
.xref
->store
) {
376 pdf_free_store (state
.xref
->store
);
377 state
.xref
->store
= NULL
;
379 pdf_free_xref (state
.xref
);
383 if (state
.pagedims
) {
384 free (state
.pagedims
);
385 state
.pagedims
= NULL
;
387 state
.pagedimcount
= 0;
389 error
= pdf_open_xref (&state
.xref
, filename
, password
);
394 error
= pdf_load_page_tree (state
.xref
);
399 state
.pagecount
= pdf_count_pages (state
.xref
);
402 static void pdfinfo (void)
404 printd (state
.sock
, "i PDF version %d.%d\n",
405 state
.xref
->version
/ 10, state
.xref
->version
% 10);
407 #if _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
414 f
= open_memstream (&buf
, &size
);
416 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
417 fz_fprint_obj (f
, fz_resolve_indirect (obj
), 0);
418 if (fclose (f
)) err (1, "fclose on memstream failed");
419 if (size
> 64*1024) size
= 64*1024;
420 printd (state
.sock
, "i %.*s", (int) size
, buf
);
424 printd (state
.sock
, "i error opening memstream: %s\n",
431 static int readlen (int fd
)
436 n
= recv (fd
, p
, 4, 0);
438 if (!n
) errx (1, "EOF while reading length");
439 sockerr (1, "recv " FMT_ss
, n
);
442 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
445 static void unlinkpage (struct page
*page
)
449 for (i
= 0; i
< page
->slicecount
; ++i
) {
450 struct slice
*s
= &page
->slices
[i
];
451 if (s
->texindex
!= -1) {
452 if (state
.texowners
[s
->texindex
].slice
== s
) {
453 state
.texowners
[s
->texindex
].slice
= NULL
;
454 ARSERT (state
.texowners
[s
->texindex
].w
== s
->w
);
455 ARSERT (state
.texowners
[s
->texindex
].h
>= s
->h
);
461 static void freepage (struct page
*page
)
463 fz_drop_pixmap (page
->pixmap
);
468 fz_free_text_span (page
->text
);
470 if (page
->drawpage
) {
471 pdf_free_page (page
->drawpage
);
477 static void subdivide (struct page
*p
)
480 int h
= p
->pixmap
->h
;
481 int th
= MIN (h
, state
.sliceheight
);
483 for (i
= 0; i
< p
->slicecount
; ++i
) {
484 struct slice
*s
= &p
->slices
[i
];
492 static int compatpdims (struct pagedim
*p1
, struct pagedim
*p2
)
494 return p1
->rotate
== p2
->rotate
495 && !memcmp (&p1
->bbox
, &p2
->bbox
, sizeof (p1
->bbox
))
496 && !memcmp (&p1
->ctm
, &p2
->ctm
, sizeof (p1
->ctm
));
502 static int cacheline32bytes
;
503 extern char **environ
;
505 static void __attribute__ ((constructor
)) clcheck (void)
507 char **envp
= environ
;
512 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
514 cacheline32bytes
= auxv
[1] == 32;
520 static void __attribute__ ((optimize ("O"))) clearpixmap (fz_pixmap
*pixmap
)
522 if (cacheline32bytes
) {
523 intptr_t a1
, a2
, diff
;
524 size_t sizea
, i
, size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
525 vector
unsigned char v
= vec_splat_u8 (-1);
526 vector
unsigned char *p
;
528 a1
= a2
= (intptr_t) pixmap
->samples
;
529 a2
= (a1
+ 31) & ~31;
534 while (a1
!= a2
) *(char *) a1
++ = 0xff;
535 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
536 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
538 vec_st (v
, i
+ 16, p
);
540 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
542 else fz_clear_pixmap_with_color (pixmap
, 0xff);
545 #define clearpixmap(p) fz_clear_pixmap_with_color (p, 0xff)
548 static void *render (int pageno
, int pindex
)
552 struct page
*page
= NULL
;
556 struct pagedim
*pagedim
;
559 printd (state
.sock
, "V rendering %d", pageno
);
561 pagedim
= &state
.pagedims
[pindex
];
562 slicecount
= (pagedim
->bbox
.y1
- pagedim
->bbox
.y0
563 + state
.sliceheight
- 1) / state
.sliceheight
;
564 slicecount
+= slicecount
== 0;
567 if (compatpdims (&state
.pig
->pagedim
, pagedim
)) {
570 fz_free_text_span (page
->text
);
573 if (page
->drawpage
) {
574 pdf_free_page (page
->drawpage
);
575 page
->drawpage
= NULL
;
579 freepage (state
.pig
);
583 page
= calloc (sizeof (*page
)
584 + (slicecount
* sizeof (struct slice
)), 1);
586 err (1, "calloc page %d\n", pageno
);
588 page
->pixmap
= fz_new_pixmap_with_rect (fz_device_rgb
, pagedim
->bbox
);
591 page
->slicecount
= slicecount
;
593 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
- 1);
597 clearpixmap (page
->pixmap
);
599 idev
= fz_new_draw_device (state
.cache
, page
->pixmap
);
601 die (fz_throw ("fz_newdrawdevice failed"));
602 error
= pdf_run_page (state
.xref
, drawpage
, idev
, pagedim
->ctm
);
604 die (fz_rethrow (error
, "pdf_runpage failed"));
605 fz_free_device (idev
);
607 page
->drawpage
= drawpage
;
608 page
->pagedim
= *pagedim
;
609 page
->pageno
= pageno
;
613 pdf_age_store (state
.xref
->store
, 3);
615 printd (state
.sock
, "V rendering %d took %f sec", pageno
, end
- start
);
620 static void initpdims (void)
626 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
630 fz_obj
*obj
, *pageobj
;
632 pageobj
= state
.xref
->page_objs
[pageno
];
634 obj
= fz_dict_gets (pageobj
, "CropBox");
635 if (!fz_is_array (obj
)) {
636 obj
= fz_dict_gets (pageobj
, "MediaBox");
637 if (!fz_is_array (obj
)) {
638 die (fz_throw ("cannot find page bounds %d (%d Rd)",
639 fz_to_num (pageobj
), fz_to_gen (pageobj
)));
642 box
= pdf_to_rect (obj
);
644 obj
= fz_dict_gets (pageobj
, "Rotate");
645 if (fz_is_int (obj
)) {
646 rotate
= fz_to_int (obj
);
651 rotate
+= state
.rotate
;
653 p
= &state
.pagedims
[state
.pagedimcount
- 1];
654 if ((state
.pagedimcount
== 0)
655 || (p
->rotate
!= rotate
|| memcmp (&p
->box
, &box
, sizeof (box
)))) {
658 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
659 state
.pagedims
= realloc (state
.pagedims
, size
);
660 if (!state
.pagedims
) {
661 err (1, "realloc pagedims to " FMT_s
" (%d elems)",
662 size
, state
.pagedimcount
+ 1);
664 p
= &state
.pagedims
[state
.pagedimcount
++];
671 printd (state
.sock
, "T Processed %d pages in %f seconds",
672 state
.pagecount
, end
- start
);
675 static void layout (void)
680 double zoom
, w
, maxw
= 0;
681 struct pagedim
*p
= state
.pagedims
;
683 if (state
.proportional
) {
684 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
685 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
686 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
687 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
688 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
691 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
692 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
693 box2
= fz_transform_rect (ctm
, box
);
694 w
= box2
.x1
- box2
.x0
;
695 maxw
= MAX (w
, maxw
);
700 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
701 box
.x0
= MIN (p
->box
.x0
, p
->box
.x1
);
702 box
.y0
= MIN (p
->box
.y0
, p
->box
.y1
);
703 box
.x1
= MAX (p
->box
.x0
, p
->box
.x1
);
704 box
.y1
= MAX (p
->box
.y0
, p
->box
.y1
);
707 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
708 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
709 box2
= fz_transform_rect (ctm
, box
);
710 w
= box2
.x1
- box2
.x0
;
712 if (state
.proportional
) {
713 double scale
= w
/ maxw
;
714 zoom
= (state
.w
/ w
) * scale
;
720 ctm
= fz_concat (ctm
, fz_translate (0, -box
.y1
));
721 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
722 memcpy (&p
->ctm1
, &ctm
, sizeof (ctm
));
723 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
));
724 p
->bbox
= fz_round_rect (fz_transform_rect (ctm
, box
));
725 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
726 memcpy (&p
->ctm
, &ctm
, sizeof (ctm
));
729 while (p
-- != state
.pagedims
) {
730 printd (state
.sock
, "l %d %d %d %d",
731 p
->pageno
, p
->bbox
.x1
- p
->bbox
.x0
, p
->bbox
.y1
- p
->bbox
.y0
,
736 static void recurse_outline (pdf_outline
*outline
, int level
)
744 if (!outline
->link
) goto next
;
746 obj
= outline
->link
->dest
;
747 if (fz_is_indirect (obj
)) {
748 obj
= fz_resolve_indirect (obj
);
750 if (fz_is_array (obj
)) {
753 obj2
= fz_array_get (obj
, 0);
754 if (fz_is_int (obj2
)) {
755 pageno
= fz_to_int (obj2
);
758 pageno
= pdf_find_page_number (state
.xref
, obj2
);
761 if (fz_array_len (obj
) > 3) {
765 xo
= fz_array_get (obj
, 2);
766 yo
= fz_array_get (obj
, 3);
767 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
768 struct pagedim
*pagedim
= state
.pagedims
;
770 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
771 if (state
.pagedims
[i
].pageno
> pageno
)
773 pagedim
= &state
.pagedims
[i
];
775 p
.x
= fz_to_int (xo
);
776 p
.y
= fz_to_int (yo
);
777 p
= fz_transform_point (pagedim
->ctm
, p
);
778 h
= pagedim
->bbox
.y1
- pagedim
->bbox
.y0
;
784 pageno
= pdf_find_page_number (state
.xref
, outline
->link
->dest
);
787 lprintf ("%*c%s %d\n", level
, ' ', outline
->title
, pageno
);
789 printd (state
.sock
, "o %d %d %d %d %s",
790 level
, pageno
, top
, h
, outline
->title
);
793 if (outline
->child
) {
794 recurse_outline (outline
->child
, level
+ 1);
796 outline
= outline
->next
;
800 static void process_outline (void)
802 pdf_outline
*outline
;
804 if (!state
.needoutline
) return;
806 state
.needoutline
= 0;
807 outline
= pdf_load_outline (state
.xref
);
809 recurse_outline (outline
, 0);
810 pdf_free_outline (outline
);
814 static int comparespans (const void *l
, const void *r
)
816 fz_text_span
const *const*ls
= l
;
817 fz_text_span
const *const*rs
= r
;
818 return (*ls
)->text
->bbox
.y0
- (*rs
)->text
->bbox
.y0
;
821 /* wishful thinking function */
822 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
832 fz_text_span
*text
, *span
, **pspan
;
833 struct pagedim
*pdim
, *pdimprev
;
840 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
842 pdf_age_store (state
.xref
->store
, 3);
844 if (hasdata (state
.sock
)) {
845 printd (state
.sock
, "T attention requested aborting search at %d",
850 printd (state
.sock
, "T searching in page %d", pageno
);
854 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
855 pdim
= &state
.pagedims
[i
];
856 if (pdim
->pageno
== pageno
) {
859 if (pdim
->pageno
> pageno
) {
868 error
= pdf_load_page (&drawpage
, state
.xref
, pageno
);
872 ctm
= fz_rotate (pdim
->rotate
);
874 text
= fz_new_text_span ();
875 tdev
= fz_new_text_device (text
);
876 error
= pdf_run_page (state
.xref
, drawpage
, tdev
, pdim
->ctm1
);
877 if (error
) die (error
);
878 fz_free_device (tdev
);
881 for (span
= text
; span
; span
= span
->next
) {
884 pspan
= malloc (sizeof (void *) * nspans
);
886 err (1, "malloc span pointers " FMT_s
, sizeof (void *) * nspans
);
888 for (i
= 0, span
= text
; span
; span
= span
->next
, ++i
) {
891 qsort (pspan
, nspans
, sizeof (fz_text_span
*), comparespans
);
893 j
= forward
? 0 : nspans
- 1;
898 j
+= forward
? 1 : -1;
900 for (i
= 0; i
< MIN (span
->len
, (int) sizeof (buf
) - 1); ++i
) {
902 if (span
->text
[i
].bbox
.y0
< y
+ 1) {
907 if (span
->text
[i
].bbox
.y0
> y
- 1) {
911 if (span
->text
[i
].c
< 256) {
912 *p
++ = span
->text
[i
].c
;
923 ret
= regexec (re
, buf
, 1, &rm
, 0);
925 if (ret
!= REG_NOMATCH
) {
928 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
930 "T regexec error `%.*s'",
932 fz_free_text_span (text
);
933 pdf_free_page (drawpage
);
941 fz_point p1
, p2
, p3
, p4
;
943 xoff
= pdim
->left
- pdim
->bbox
.x0
;
944 yoff
= -pdim
->bbox
.y0
;
946 sb
= &span
->text
[rm
.rm_so
].bbox
;
947 eb
= &span
->text
[rm
.rm_eo
- 1].bbox
;
958 p1
= fz_transform_point (ctm
, p1
);
959 p2
= fz_transform_point (ctm
, p2
);
960 p3
= fz_transform_point (ctm
, p3
);
961 p4
= fz_transform_point (ctm
, p4
);
964 printd (state
.sock
, "F %d %d %f %f %f %f %f %f %f %f",
966 p1
.x
+ xoff
, p1
.y
+ yoff
,
967 p2
.x
+ xoff
, p2
.y
+ yoff
,
968 p3
.x
+ xoff
, p3
.y
+ yoff
,
969 p4
.x
+ xoff
, p4
.y
+ yoff
);
971 printd (state
.sock
, "T found at %d `%.*s' in %f sec",
972 pageno
, rm
.rm_eo
- rm
.rm_so
, &buf
[rm
.rm_so
],
976 printd (state
.sock
, "R %d %d %f %f %f %f %f %f %f %f",
978 p1
.x
+ xoff
, p1
.y
+ yoff
,
979 p2
.x
+ xoff
, p2
.y
+ yoff
,
980 p3
.x
+ xoff
, p3
.y
+ yoff
,
981 p4
.x
+ xoff
, p4
.y
+ yoff
);
994 fz_free_text_span (text
);
995 pdf_free_page (drawpage
);
1000 printd (state
.sock
, "T no matches %f sec", end
- start
);
1002 printd (state
.sock
, "D");
1011 mainloop (void *unused
)
1014 int len
, ret
, oldlen
= 0;
1017 len
= readlen (state
.sock
);
1019 errx (1, "readlen returned 0");
1022 if (oldlen
< len
+ 1) {
1023 p
= realloc (p
, len
+ 1);
1025 err (1, "realloc %d failed", len
+ 1);
1029 readdata (state
.sock
, p
, len
);
1032 if (!strncmp ("open", p
, 4)) {
1036 char *filename
= p
+ 5;
1038 filenamelen
= strlen (filename
);
1039 password
= filename
+ filenamelen
+ 1;
1041 openxref (filename
, password
);
1044 obj
= fz_dict_gets (state
.xref
->trailer
, "Info");
1048 obj
= fz_dict_gets (obj
, "Title");
1049 s
= pdf_to_utf8 (obj
);
1051 printd (state
.sock
, "t %s", s
);
1056 state
.needoutline
= 1;
1058 else if (!strncmp ("free", p
, 4)) {
1061 ret
= sscanf (p
+ 4, " %p", &ptr
);
1063 errx (1, "malformed free `%.*s' ret=%d", len
, p
, ret
);
1068 else if (!strncmp ("search", p
, 6)) {
1069 int icase
, pageno
, y
, ret
, len2
, forward
;
1073 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1074 &icase
, &pageno
, &y
, &forward
, &len2
);
1076 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1079 pattern
= p
+ 6 + len2
;
1080 ret
= regcomp (&re
, pattern
,
1081 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1086 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1087 printd (state
.sock
, "T regcomp failed `%.*s'",
1088 (int) size
, errbuf
);
1091 search (&re
, pageno
, y
, forward
);
1095 else if (!strncmp ("geometry", p
, 8)) {
1098 printd (state
.sock
, "c");
1099 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1101 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1109 for (i
= 0; i
< state
.texcount
; ++i
) {
1110 state
.texowners
[i
].slice
= NULL
;
1115 unlock ("geometry");
1116 printd (state
.sock
, "C %d", state
.pagecount
);
1118 else if (!strncmp ("reinit", p
, 6)) {
1122 printd (state
.sock
, "c");
1123 ret
= sscanf (p
+ 6, " %f %d", &rotate
, &proportional
);
1125 errx (1, "bad rotate line `%.*s' ret=%d", len
, p
, ret
);
1128 state
.rotate
= rotate
;
1129 state
.proportional
= proportional
;
1130 state
.pagedimcount
= 0;
1131 free (state
.pagedims
);
1132 state
.pagedims
= NULL
;
1137 freepage (state
.pig
);
1141 printd (state
.sock
, "C %d", state
.pagecount
);
1143 else if (!strncmp ("render", p
, 6)) {
1144 int pageno
, pindex
, w
, h
, ret
;
1147 ret
= sscanf (p
+ 6, " %d %d %d %d", &pageno
, &pindex
, &w
, &h
);
1149 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1153 page
= render (pageno
, pindex
);
1156 printd (state
.sock
, "r %d %d %d %d %d %d %p",
1165 else if (!strncmp ("info", p
, 4)) {
1168 else if (!strncmp ("interrupt", p
, 9)) {
1169 printd (state
.sock
, "V interrupted");
1172 errx (1, "unknown command %.*s", len
, p
);
1178 static void showsel (struct page
*page
, int oy
)
1183 struct mark first
, last
;
1185 first
= page
->fmark
;
1188 if (!first
.span
|| !last
.span
) return;
1190 glEnable (GL_BLEND
);
1191 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1192 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1194 ox
= -page
->pixmap
->x
+ page
->pagedim
.left
;
1195 oy
= -page
->pixmap
->y
+ oy
;
1196 for (span
= first
.span
; span
; span
= span
->next
) {
1199 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1204 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1205 j
= MIN (first
.i
, last
.i
);
1206 k
= MAX (first
.i
, last
.i
);
1208 else if (span
== first
.span
) {
1211 else if (span
== last
.span
) {
1215 for (i
= j
; i
<= k
; ++i
) {
1216 bbox
= fz_union_bbox (bbox
, span
->text
[i
].bbox
);
1218 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1225 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
, bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1227 if (span
== last
.span
) break;
1229 glDisable (GL_BLEND
);
1232 static void highlightlinks (struct page
*page
, int yoff
)
1237 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1238 glEnable (GL_LINE_STIPPLE
);
1239 glLineStipple (0.5, 0xcccc);
1241 xoff
= page
->pagedim
.left
- page
->pixmap
->x
;
1242 yoff
-= page
->pixmap
->y
;
1245 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1246 fz_point p1
, p2
, p3
, p4
;
1247 fz_matrix ctm
= page
->pagedim
.ctm
;
1249 p1
.x
= link
->rect
.x0
;
1250 p1
.y
= link
->rect
.y0
;
1252 p2
.x
= link
->rect
.x1
;
1253 p2
.y
= link
->rect
.y0
;
1255 p3
.x
= link
->rect
.x1
;
1256 p3
.y
= link
->rect
.y1
;
1258 p4
.x
= link
->rect
.x0
;
1259 p4
.y
= link
->rect
.y1
;
1261 p1
= fz_transform_point (ctm
, p1
);
1262 p2
= fz_transform_point (ctm
, p2
);
1263 p3
= fz_transform_point (ctm
, p3
);
1264 p4
= fz_transform_point (ctm
, p4
);
1266 switch (link
->kind
) {
1267 case PDF_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1268 case PDF_LINK_URI
: glColor3ub (0, 0, 255); break;
1269 default: glColor3ub (0, 0, 0); break;
1272 glVertex2f (p1
.x
+ xoff
, p1
.y
+ yoff
);
1273 glVertex2f (p2
.x
+ xoff
, p2
.y
+ yoff
);
1274 glVertex2f (p3
.x
+ xoff
, p3
.y
+ yoff
);
1275 glVertex2f (p4
.x
+ xoff
, p4
.y
+ yoff
);
1279 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1280 glDisable (GL_LINE_STIPPLE
);
1283 static void upload2 (struct page
*page
, int slicenum
, const char *cap
)
1288 struct slice
*slice
= &page
->slices
[slicenum
];
1290 w
= page
->pixmap
->w
;
1292 ARSERT (w
== slice
->w
);
1293 if (slice
->texindex
!= -1
1294 && state
.texowners
[slice
->texindex
].slice
== slice
) {
1295 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1299 int index
= (state
.texindex
++ % state
.texcount
);
1302 for (i
= 0; i
< slicenum
; ++i
) {
1303 offset
+= w
* page
->slices
[i
].h
* 4;
1306 if (state
.texowners
[index
].w
== slice
->w
) {
1307 if (state
.texowners
[index
].h
>= slice
->h
) {
1311 state
.texowners
[index
].h
= slice
->h
;
1315 state
.texowners
[index
].h
= slice
->h
;
1318 state
.texowners
[index
].slice
= slice
;
1319 state
.texowners
[index
].w
= slice
->w
;
1320 slice
->texindex
= index
;
1322 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
1326 GLenum err
= glGetError ();
1327 if (err
!= GL_NO_ERROR
) {
1328 printf ("\033[0;31mERROR1 %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1332 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1340 page
->pixmap
->samples
+ offset
1343 GLenum err
= glGetError ();
1344 if (err
!= GL_NO_ERROR
) {
1345 printf ("\033[0;31mERROR %d %d %#x\033[0m\n", w
, slice
->h
, err
);
1351 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
1359 page
->pixmap
->samples
+ offset
1366 lprintf ("%s[%d] slice=%d(%d,%d) texid=%d %f sec\n",
1367 subimage
? "sub" : "img",
1368 page
->pageno
, slicenum
,
1370 state
.texids
[slice
->texindex
],
1377 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
1379 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
1380 int pt
= Int_val(pt_v
);
1381 int x
= Int_val (x_v
);
1382 int y
= Int_val (y_v
);
1385 errx (1, "draw string with no face");
1388 glEnable (GL_TEXTURE_2D
);
1389 glEnable (GL_BLEND
);
1390 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
1391 draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
1392 glDisable (GL_BLEND
);
1393 glDisable (GL_TEXTURE_2D
);
1395 CAMLreturn (Val_unit
);
1398 CAMLprim value
ml_draw (value args_v
, value ptr_v
)
1400 CAMLparam2 (args_v
, ptr_v
);
1401 int dispy
= Int_val (Field (args_v
, 0));
1402 int w
= Int_val (Field (args_v
, 1));
1403 int h
= Int_val (Field (args_v
, 2));
1404 int py
= Int_val (Field (args_v
, 3));
1405 int hlinks
= Bool_val (Field (args_v
, 4));
1406 char *s
= String_val (ptr_v
);
1411 int yoff
= dispy
- py
;
1413 ret
= sscanf (s
, "%p", &ptr
);
1415 errx (1, "cannot parse pointer `%s'", s
);
1419 w
= page
->pixmap
->w
;
1421 ARSERT (h
>= 0 && "ml_draw wrong h");
1422 ARSERT (py
<= page
->pixmap
->h
&& "ml_draw wrong py");
1424 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
1426 for (slicenum
= 0; slicenum
< page
->slicecount
; ++slicenum
) {
1427 struct slice
*slice
= &page
->slices
[slicenum
];
1428 if (slice
->h
> py
) {
1434 h
= MIN (state
.h
, h
);
1437 struct slice
*slice
= &page
->slices
[slicenum
];
1439 ARSERT (slicenum
< page
->slicecount
&& "ml_draw wrong slicenum");
1441 th
= MIN (h
, slice
->h
- py
);
1442 upload2 (page
, slicenum
, "upload");
1444 left
= page
->pagedim
.left
;
1447 glTexCoord2i (0, py
);
1448 glVertex2i (left
, dispy
);
1450 glTexCoord2i (w
, py
);
1451 glVertex2i (left
+w
, dispy
);
1453 glTexCoord2i (w
, py
+th
);
1454 glVertex2i (left
+w
, dispy
+ th
);
1456 glTexCoord2i (0, py
+th
);
1457 glVertex2i (left
, dispy
+ th
);
1467 showsel (page
, yoff
);
1468 if (hlinks
) highlightlinks (page
, yoff
);
1469 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
1471 CAMLreturn (Val_unit
);
1474 static pdf_link
*getlink (struct page
*page
, int x
, int y
)
1480 p
.x
= x
+ page
->pixmap
->x
;
1481 p
.y
= y
+ page
->pixmap
->y
;
1483 ctm
= fz_invert_matrix (page
->pagedim
.ctm
);
1484 p
= fz_transform_point (ctm
, p
);
1486 for (link
= page
->drawpage
->links
; link
; link
= link
->next
) {
1487 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
1488 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
1496 static void ensuretext (struct page
*page
)
1502 page
->text
= fz_new_text_span ();
1503 tdev
= fz_new_text_device (page
->text
);
1504 error
= pdf_run_page (state
.xref
, page
->drawpage
, tdev
,
1506 if (error
) die (error
);
1507 fz_free_device (tdev
);
1511 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
1513 CAMLparam3 (ptr_v
, x_v
, y_v
);
1514 CAMLlocal3 (ret_v
, tup_v
, str_v
);
1517 char *s
= String_val (ptr_v
);
1519 ret_v
= Val_int (0);
1520 if (trylock ("ml_whatsunder")) {
1524 page
= parse_pointer ("ml_whatsunder", s
);
1525 link
= getlink (page
, Int_val (x_v
), Int_val (y_v
));
1527 switch (link
->kind
) {
1538 if (fz_is_array (link
->dest
)) {
1539 obj
= fz_array_get (link
->dest
, 0);
1540 if (fz_is_indirect (obj
)) {
1541 pageno
= pdf_find_page_number (state
.xref
, obj
);
1543 else if (fz_is_int (obj
)) {
1544 pageno
= fz_to_int (obj
);
1547 if (fz_array_len (link
->dest
) > 3) {
1550 xo
= fz_array_get (link
->dest
, 2);
1551 yo
= fz_array_get (link
->dest
, 3);
1552 if (!fz_is_null (xo
) && !fz_is_null (yo
)) {
1553 p
.x
= fz_to_int (xo
);
1554 p
.y
= fz_to_int (yo
);
1555 p
= fz_transform_point (page
->pagedim
.ctm
, p
);
1560 pageno
= pdf_find_page_number (state
.xref
, link
->dest
);
1562 tup_v
= caml_alloc_tuple (2);
1563 ret_v
= caml_alloc_small (1, 1);
1564 Field (tup_v
, 0) = Val_int (pageno
);
1565 Field (tup_v
, 1) = Val_int (p
.y
);
1566 Field (ret_v
, 0) = tup_v
;
1571 str_v
= caml_copy_string (fz_to_str_buf (link
->dest
));
1572 ret_v
= caml_alloc_small (1, 0);
1573 Field (ret_v
, 0) = str_v
;
1577 printd (state
.sock
, "T unhandled link kind %d", link
->kind
);
1586 x
= Int_val (x_v
) + page
->pixmap
->x
;
1587 y
= Int_val (y_v
) + page
->pixmap
->y
;
1589 for (span
= page
->text
; span
; span
= span
->next
) {
1590 for (i
= 0; i
< span
->len
; ++i
) {
1592 b
= &span
->text
[i
].bbox
;
1593 if ((x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)) {
1595 span
->font
&& span
->font
->name
1597 : "Span has no font name"
1599 #ifdef FT_FREETYPE_H
1600 FT_FaceRec
*face
= span
->font
->ft_face
;
1601 if (face
&& face
->family_name
) {
1603 char *n1
= face
->family_name
;
1604 size_t l1
= strlen (n1
);
1605 size_t l2
= strlen (n2
);
1607 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
1608 s
= malloc (l1
+ l2
+ 2);
1612 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
1613 str_v
= caml_copy_string (s
);
1619 str_v
= caml_copy_string (n2
);
1622 str_v
= caml_copy_string (n2
);
1624 ret_v
= caml_alloc_small (1, 2);
1625 Field (ret_v
, 0) = str_v
;
1632 unlock ("ml_whatsunder");
1638 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
, value oy_v
)
1640 CAMLparam4 (ptr_v
, rect_v
, oy_v
, rect_v
);
1644 struct mark first
, last
;
1645 int i
, x0
, x1
, y0
, y1
, oy
, left
;
1646 char *s
= String_val (ptr_v
);
1648 if (trylock ("ml_seltext")) {
1652 page
= parse_pointer ("ml_seltext", s
);
1655 oy
= Int_val (oy_v
);
1656 x0
= Int_val (Field (rect_v
, 0));
1657 y0
= Int_val (Field (rect_v
, 1));
1658 x1
= Int_val (Field (rect_v
, 2));
1659 y1
= Int_val (Field (rect_v
, 3));
1661 left
= page
->pagedim
.left
;
1663 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1664 glColor3ub (128, 128, 128);
1665 glRecti (x0
, y0
, x1
, y1
);
1666 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1669 x0
+= page
->pixmap
->x
- left
;
1670 y0
+= page
->pixmap
->y
- oy
;
1671 x1
+= page
->pixmap
->x
- left
;
1672 y1
+= page
->pixmap
->y
- oy
;
1677 last
.i
= first
.i
= 0;
1678 first
.span
= page
->text
;
1679 for (span
= page
->text
; span
; span
= span
->next
) {
1680 for (i
= 0; i
< span
->len
; ++i
) {
1681 b
= &span
->text
[i
].bbox
;
1684 if (x0
>= b
->x0
&& x0
<= b
->x1
&& y0
>= b
->y0
&& y0
<= b
->y1
) {
1689 if (x1
>= b
->x0
&& x1
<= b
->x1
&& y1
>= b
->y0
&& y1
<= b
->y1
) {
1694 if (0 && selected
) {
1695 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1696 glColor3ub (128, 128, 128);
1697 glRecti (b
->x0
+left
, b
->y0
, b
->x1
+left
, b
->y1
);
1698 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1703 if (y1
< y0
|| x1
< x0
) {
1706 if (first
.span
== last
.span
) {
1711 for (span
= first
.span
; span
&& span
!= last
.span
;
1712 span
= span
->next
) {
1725 first
.span
= last
.span
;
1731 page
->fmark
= first
;
1734 unlock ("ml_seltext");
1737 CAMLreturn (Val_unit
);
1740 static int pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
1745 for (i
= a
; i
<= b
; ++i
) {
1746 len
= runetochar (buf
, &span
->text
[i
].c
);
1747 ret
= fwrite (buf
, len
, 1, f
);
1750 printd (state
.sock
, "T failed to write %d bytes ret=%d: %s",
1751 len
, ret
, strerror (errno
));
1758 CAMLprim value
ml_copysel (value ptr_v
)
1763 char *s
= String_val (ptr_v
);
1765 if (trylock ("ml_copysel")) {
1772 if (state
.xselpipe
) {
1773 int ret
= pclose (state
.xselpipe
);
1775 printd (state
.sock
, "T failed to close xsel pipe `%s'",
1778 state
.xselpipe
= NULL
;
1781 printf ("========================================\n");
1787 page
= parse_pointer ("ml_sopysel", s
);
1789 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
1790 printd (state
.sock
, "T nothing to copy");
1796 if (!state
.xselpipe
) {
1797 state
.xselpipe
= popen ("xsel -i", "w");
1798 if (!state
.xselpipe
) {
1799 printd (state
.sock
, "T failed to open xsel pipe `%s'",
1811 for (span
= page
->fmark
.span
;
1812 span
&& span
!= page
->lmark
.span
->next
;
1813 span
= span
->next
) {
1814 int a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
1815 int b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
1816 if (pipespan (f
, span
, a
, b
)) {
1820 if (putc ('\n', f
) == EOF
) {
1821 printd (state
.sock
, "T failed break line on xsel pipe `%s'",
1827 page
->lmark
.span
= NULL
;
1828 page
->fmark
.span
= NULL
;
1832 unlock ("ml_copysel");
1835 CAMLreturn (Val_unit
);
1838 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
1840 CAMLparam1 (pagedimno_v
);
1842 int pagedimno
= Int_val (pagedimno_v
);
1845 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
1846 if (trylock ("ml_getpdimrect")) {
1847 box
= fz_empty_rect
;
1850 box
= state
.pagedims
[pagedimno
].box
;
1851 unlock ("ml_getpdimrect");
1854 Store_double_field (ret_v
, 0, box
.x0
);
1855 Store_double_field (ret_v
, 1, box
.x1
);
1856 Store_double_field (ret_v
, 2, box
.y0
);
1857 Store_double_field (ret_v
, 3, box
.y1
);
1862 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
, value dw_v
)
1864 CAMLparam3 (winw_v
, winh_v
, dw_v
);
1868 double maxw
= 0.0, maxh
= 0.0;
1870 double winw
= Int_val (winw_v
);
1871 double winh
= Int_val (winh_v
);
1872 double dw
= Int_val (dw_v
);
1873 double pw
= 1.0, ph
= 1.0, num
, den
;
1875 if (trylock ("ml_zoom_for_height")) {
1879 if (state
.proportional
) {
1880 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1883 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1884 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1887 maxw
= MAX (w
, maxw
);
1891 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
1892 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
1894 x0
= MIN (p
->box
.x0
, p
->box
.x1
);
1895 y0
= MIN (p
->box
.y0
, p
->box
.y1
);
1896 x1
= MAX (p
->box
.x0
, p
->box
.x1
);
1897 y1
= MAX (p
->box
.y0
, p
->box
.y1
);
1902 if (state
.proportional
) {
1904 scaledh
= h
* scale
;
1911 if (scaledh
> maxh
) {
1918 num
= (winh
* pw
) + (ph
* dw
);
1922 unlock ("ml_zoom_for_height");
1924 ret_v
= caml_copy_double (zoom
);
1928 CAMLprim value
ml_init (value sock_v
, value params_v
)
1930 CAMLparam2 (sock_v
, params_v
);
1936 state
.rotate
= Int_val (Field (params_v
, 0));
1937 state
.proportional
= Bool_val (Field (params_v
, 1));
1938 state
.texcount
= Int_val (Field (params_v
, 2));
1939 state
.sliceheight
= Int_val (Field (params_v
, 3));
1940 fontpath
= String_val (Field (params_v
, 4));
1941 state
.texform
= GL_RGBA
;
1942 state
.texty
= GL_UNSIGNED_BYTE
;
1945 state
.face
= load_font (fontpath
);
1950 void *base
= pdf_find_builtin_font ("Courier-Bold", &len
);
1952 if (!len
|| !base
) errx (1, "failed to find builtin font\n");
1954 code
= FT_New_Memory_Face (g_freetype_lib
, base
, len
, 0, &state
.face
);
1955 if (code
) errx (1, "failed to load font bultin font\n");
1957 if (!state
.face
) _exit (1);
1960 state
.texids
= calloc (state
.texcount
* sizeof (*state
.texids
), 1);
1961 if (!state
.texids
) {
1962 err (1, "calloc texids " FMT_s
,
1963 state
.texcount
* sizeof (*state
.texids
));
1966 state
.texowners
= calloc (state
.texcount
* sizeof (*state
.texowners
), 1);
1967 if (!state
.texowners
) {
1968 err (1, "calloc texowners " FMT_s
,
1969 state
.texcount
* sizeof (*state
.texowners
));
1972 glGenTextures (state
.texcount
, state
.texids
);
1975 state
.sock
= Socket_val (sock_v
);
1977 state
.sock
= Int_val (sock_v
);
1981 InitializeCriticalSection (&critsec
);
1982 state
.thread
= CreateThread (NULL
, 0, mainloop
, NULL
, 0, NULL
);
1983 if (state
.thread
== INVALID_HANDLE_VALUE
) {
1984 errx (1, "CreateThread failed: %lx", GetLastError ());
1987 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
1989 errx (1, "pthread_create: %s", strerror (ret
));
1993 CAMLreturn (Val_unit
);