1 /* lots of code c&p-ed directly from mupdf */
2 #define CAML_NAME_SPACE
15 #include <sys/types.h>
16 #include <sys/ioctl.h>
17 #include <sys/utsname.h>
20 #include <cygwin/socket.h> /* FIONREAD */
32 #include <caml/fail.h>
33 #include <caml/alloc.h>
34 #include <caml/memory.h>
35 #include <caml/unixsupport.h>
37 #pragma GCC diagnostic push
38 #pragma GCC diagnostic ignored "-Wunused-parameter"
39 #include <mupdf/fitz.h>
40 #pragma GCC diagnostic pop
41 #include <mupdf/pdf.h>
44 #include FT_FREETYPE_H
47 #include <fontconfig/fontconfig.h>
51 #define CACHE_PAGEREFS
54 extern char **environ
;
57 #define MIN(a,b) ((a) < (b) ? (a) : (b))
58 #define MAX(a,b) ((a) > (b) ? (a) : (b))
61 #define NORETURN_ATTR __attribute__ ((noreturn))
62 #define UNUSED_ATTR __attribute__ ((unused))
63 #if !defined __clang__
64 #define OPTIMIZE_ATTR(n) __attribute__ ((optimize ("O"#n)))
66 #define OPTIMIZE_ATTR(n)
68 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
72 #define OPTIMIZE_ATTR(n)
73 #define GCC_FMT_ATTR(a, b)
78 #define FMT_ptr PRIxPTR
79 #define SCN_ptr SCNxPTR
80 #define FMT_ptr_cast(p) ((uintptr_t) (p))
81 #define SCN_ptr_cast(p) ((uintptr_t *) (p))
83 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
84 err (int exitcode
, const char *fmt
, ...)
91 vfprintf (stderr
, fmt
, ap
);
93 fprintf (stderr
, ": %s\n", strerror (savederrno
));
98 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
99 errx (int exitcode
, const char *fmt
, ...)
104 vfprintf (stderr
, fmt
, ap
);
106 fputc ('\n', stderr
);
111 #ifndef GL_TEXTURE_RECTANGLE_ARB
112 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
116 #define GL_BGRA 0x80E1
119 #ifndef GL_UNSIGNED_INT_8_8_8_8
120 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
123 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
124 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
128 #define lprintf printf
133 #define ARSERT(cond) for (;;) { \
135 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
151 struct slice slices
[1];
162 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
166 enum { SLINK
, SANNOT
} tag
;
186 fz_text_sheet
*sheet
;
188 fz_display_list
*dlist
;
190 struct slink
*slinks
;
192 struct annot
*annots
;
201 struct pagedim
*pagedims
;
216 fz_colorspace
*colorspace
;
224 enum { FitWidth
, FitProportional
, FitPage
} fitmodel
;
245 void (*glBindBufferARB
) (GLenum
, GLuint
);
246 GLboolean (*glUnmapBufferARB
) (GLenum
);
247 void *(*glMapBufferARB
) (GLenum
, GLenum
);
248 void (*glBufferDataARB
) (GLenum
, GLsizei
, void *, GLenum
);
249 void (*glGenBuffersARB
) (GLsizei
, GLuint
*);
250 void (*glDeleteBuffersARB
) (GLsizei
, GLuint
*);
252 GLfloat texcoords
[8];
253 GLfloat vertices
[16];
255 #ifdef CACHE_PAGEREFS
271 static void UNUSED_ATTR
debug_rect (const char *cap
, fz_rect r
)
273 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
276 static void UNUSED_ATTR
debug_bbox (const char *cap
, fz_irect r
)
278 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
281 static void UNUSED_ATTR
debug_matrix (const char *cap
, fz_matrix m
)
283 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
284 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
287 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
289 static void lock (const char *cap
)
291 int ret
= pthread_mutex_lock (&mutex
);
293 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
297 static void unlock (const char *cap
)
299 int ret
= pthread_mutex_unlock (&mutex
);
301 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
305 static int trylock (const char *cap
)
307 int ret
= pthread_mutex_trylock (&mutex
);
308 if (ret
&& ret
!= EBUSY
) {
309 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
314 static void *parse_pointer (const char *cap
, const char *s
)
319 ret
= sscanf (s
, "%" SCN_ptr
, SCN_ptr_cast (&ptr
));
321 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
326 static double now (void)
330 if (gettimeofday (&tv
, NULL
)) {
331 err (1, "gettimeofday");
333 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
336 static int hasdata (void)
339 ret
= ioctl (state
.csock
, FIONREAD
, &avail
);
340 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
344 CAMLprim value
ml_hasdata (value fd_v
)
349 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
350 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
351 CAMLreturn (Val_bool (avail
> 0));
354 static void readdata (void *p
, int size
)
359 n
= read (state
.csock
, p
, size
);
361 if (errno
== EINTR
) goto again
;
362 err (1, "read (req %d, ret %zd)", size
, n
);
365 if (!n
) errx (1, "EOF while reading");
366 errx (1, "read (req %d, ret %zd)", size
, n
);
370 static void writedata (char *p
, int size
)
374 p
[0] = (size
>> 24) & 0xff;
375 p
[1] = (size
>> 16) & 0xff;
376 p
[2] = (size
>> 8) & 0xff;
377 p
[3] = (size
>> 0) & 0xff;
379 n
= write (state
.csock
, p
, size
+ 4);
381 if (!n
) errx (1, "EOF while writing data");
382 err (1, "write (req %d, ret %zd)", size
+ 4, n
);
386 static int readlen (void)
391 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
394 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
402 if (!buf
) err (1, "malloc for temp buf (%d bytes) failed", size
);
405 len
= vsnprintf (buf
+ 4, size
- 4, fmt
, ap
);
409 if (len
< size
- 4) {
410 writedata (buf
, len
);
416 err (1, "vsnprintf for `%s' failed", fmt
);
418 buf
= realloc (buf
, size
);
423 static void closedoc (void)
425 #ifdef CACHE_PAGEREFS
426 if (state
.pdflut
.objs
) {
429 for (i
= 0; i
< state
.pdflut
.count
; ++i
) {
430 pdf_drop_obj (state
.ctx
, state
.pdflut
.objs
[i
]);
432 free (state
.pdflut
.objs
);
433 state
.pdflut
.objs
= NULL
;
434 state
.pdflut
.idx
= 0;
438 fz_drop_document (state
.ctx
, state
.doc
);
443 static int openxref (char *filename
, char *password
)
447 for (i
= 0; i
< state
.texcount
; ++i
) {
448 state
.texowners
[i
].w
= -1;
449 state
.texowners
[i
].slice
= NULL
;
455 if (state
.pagedims
) {
456 free (state
.pagedims
);
457 state
.pagedims
= NULL
;
459 state
.pagedimcount
= 0;
461 fz_set_aa_level (state
.ctx
, state
.aalevel
);
462 state
.doc
= fz_open_document (state
.ctx
, filename
);
463 if (fz_needs_password (state
.ctx
, state
.doc
)) {
464 if (password
&& !*password
) {
469 int ok
= fz_authenticate_password (state
.ctx
, state
.doc
, password
);
471 printd ("pass fail");
476 state
.pagecount
= fz_count_pages (state
.ctx
, state
.doc
);
480 static void pdfinfo (void)
482 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
486 printd ("info PDF version\t%d.%d",
487 pdf
->version
/ 10, pdf
->version
% 10);
489 infoobj
= pdf_dict_gets (state
.ctx
, pdf_trailer (state
.ctx
,
494 char *items
[] = { "Title", "Author", "Creator",
495 "Producer", "CreationDate" };
497 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
498 pdf_obj
*obj
= pdf_dict_gets (state
.ctx
, infoobj
, items
[i
]);
499 s
= pdf_to_utf8 (state
.ctx
, pdf
, obj
);
500 if (*s
) printd ("info %s\t%s", items
[i
], s
);
501 fz_free (state
.ctx
, s
);
508 static void unlinktile (struct tile
*tile
)
512 for (i
= 0; i
< tile
->slicecount
; ++i
) {
513 struct slice
*s
= &tile
->slices
[i
];
515 if (s
->texindex
!= -1) {
516 if (state
.texowners
[s
->texindex
].slice
== s
) {
517 state
.texowners
[s
->texindex
].slice
= NULL
;
523 static void freepage (struct page
*page
)
527 fz_drop_text_page (state
.ctx
, page
->text
);
530 fz_drop_text_sheet (state
.ctx
, page
->sheet
);
535 fz_drop_display_list (state
.ctx
, page
->dlist
);
536 fz_drop_page (state
.ctx
, page
->fzpage
);
540 static void freetile (struct tile
*tile
)
545 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
548 fz_drop_pixmap (state
.ctx
, state
.pig
);
550 state
.pig
= tile
->pixmap
;
555 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
564 static int cacheline32bytes
;
566 static void __attribute__ ((constructor
)) clcheck (void)
568 char **envp
= environ
;
573 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
575 cacheline32bytes
= auxv
[1] == 32;
581 static void OPTIMIZE_ATTR (3) clearpixmap (fz_pixmap
*pixmap
)
583 size_t size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
584 if (cacheline32bytes
&& size
> 32) {
585 intptr_t a1
, a2
, diff
;
587 vector
unsigned char v
= vec_splat_u8 (-1);
588 vector
unsigned char *p
;
590 a1
= a2
= (intptr_t) pixmap
->samples
;
591 a2
= (a1
+ 31) & ~31;
596 while (a1
!= a2
) *(char *) a1
++ = 0xff;
597 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
598 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
600 vec_st (v
, i
+ 16, p
);
602 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
604 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
607 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
610 static void trimctm (pdf_page
*page
, int pindex
)
613 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
615 if (!pdim
->tctmready
) {
616 if (state
.trimmargins
) {
618 fz_matrix rm
, sm
, tm
, im
, ctm1
;
620 fz_rotate (&rm
, -pdim
->rotate
);
621 fz_scale (&sm
, 1, -1);
622 fz_concat (&ctm
, &rm
, &sm
);
623 realbox
= pdim
->mediabox
;
624 fz_transform_rect (&realbox
, &ctm
);
625 fz_translate (&tm
, -realbox
.x0
, -realbox
.y0
);
626 fz_concat (&ctm1
, &ctm
, &tm
);
627 fz_invert_matrix (&im
, &page
->ctm
);
628 fz_concat (&ctm
, &im
, &ctm1
);
638 static fz_matrix
pagectm1 (fz_page
*fzpage
, struct pagedim
*pdim
)
641 int pdimno
= pdim
- state
.pagedims
;
643 if (pdf_specifics (state
.ctx
, state
.doc
)) {
644 trimctm ((pdf_page
*) fzpage
, pdimno
);
645 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->ctm
);
648 fz_translate (&tm
, -pdim
->mediabox
.x0
, -pdim
->mediabox
.y0
);
649 fz_concat (&ctm
, &tm
, &pdim
->ctm
);
654 static fz_matrix
pagectm (struct page
*page
)
656 return pagectm1 (page
->fzpage
, &state
.pagedims
[page
->pdimno
]);
659 static void *loadpage (int pageno
, int pindex
)
664 page
= calloc (sizeof (struct page
), 1);
666 err (1, "calloc page %d", pageno
);
669 page
->dlist
= fz_new_display_list (state
.ctx
);
670 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
672 page
->fzpage
= fz_load_page (state
.ctx
, state
.doc
, pageno
);
673 fz_run_page (state
.ctx
, page
->fzpage
, dev
,
676 fz_catch (state
.ctx
) {
679 fz_drop_device (state
.ctx
, dev
);
681 page
->pdimno
= pindex
;
682 page
->pageno
= pageno
;
683 page
->sgen
= state
.gen
;
684 page
->agen
= state
.gen
;
685 page
->tgen
= state
.gen
;
689 static struct tile
*alloctile (int h
)
696 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
697 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
698 tile
= calloc (tilesize
, 1);
700 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
702 for (i
= 0; i
< slicecount
; ++i
) {
703 int sh
= MIN (h
, state
.sliceheight
);
704 tile
->slices
[i
].h
= sh
;
705 tile
->slices
[i
].texindex
= -1;
708 tile
->slicecount
= slicecount
;
709 tile
->sliceheight
= state
.sliceheight
;
713 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
,
721 struct pagedim
*pdim
;
723 tile
= alloctile (h
);
724 pdim
= &state
.pagedims
[page
->pdimno
];
729 bbox
.x1
= bbox
.x0
+ w
;
730 bbox
.y1
= bbox
.y0
+ h
;
733 if (state
.pig
->w
== w
735 && state
.pig
->colorspace
== state
.colorspace
) {
736 tile
->pixmap
= state
.pig
;
737 tile
->pixmap
->x
= bbox
.x0
;
738 tile
->pixmap
->y
= bbox
.y0
;
741 fz_drop_pixmap (state
.ctx
, state
.pig
);
748 fz_new_pixmap_with_bbox_and_data (state
.ctx
, state
.colorspace
,
754 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, &bbox
);
760 clearpixmap (tile
->pixmap
);
762 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
763 ctm
= pagectm (page
);
764 fz_rect_from_irect (&rect
, &bbox
);
765 fz_run_display_list (state
.ctx
, page
->dlist
, dev
, &ctm
, &rect
, NULL
);
766 fz_drop_device (state
.ctx
, dev
);
771 #ifdef CACHE_PAGEREFS
772 /* modified mupdf/source/pdf/pdf-page.c:pdf_lookup_page_loc_imp
773 thanks to Robin Watts */
775 pdf_collect_pages(pdf_document
*doc
, pdf_obj
*node
)
777 fz_context
*ctx
= state
.ctx
; /* doc->ctx; */
781 if (state
.pdflut
.idx
== state
.pagecount
) return;
783 kids
= pdf_dict_gets (ctx
, node
, "Kids");
784 len
= pdf_array_len (ctx
, kids
);
787 fz_throw (ctx
, FZ_ERROR_GENERIC
, "Malformed pages tree");
789 if (pdf_mark_obj (ctx
, node
))
790 fz_throw (ctx
, FZ_ERROR_GENERIC
, "cycle in page tree");
791 for (i
= 0; i
< len
; i
++) {
792 pdf_obj
*kid
= pdf_array_get (ctx
, kids
, i
);
793 char *type
= pdf_to_name (ctx
, pdf_dict_gets (ctx
, kid
, "Type"));
795 ? !strcmp (type
, "Pages")
796 : pdf_dict_gets (ctx
, kid
, "Kids")
797 && !pdf_dict_gets (ctx
, kid
, "MediaBox")) {
798 pdf_collect_pages (doc
, kid
);
802 ? strcmp (type
, "Page") != 0
803 : !pdf_dict_gets (ctx
, kid
, "MediaBox"))
804 fz_warn (ctx
, "non-page object in page tree (%s)", type
);
805 state
.pdflut
.objs
[state
.pdflut
.idx
++] = pdf_keep_obj (ctx
, kid
);
808 pdf_unmark_obj (ctx
, node
);
812 pdf_load_page_objs (pdf_document
*doc
)
814 pdf_obj
*root
= pdf_dict_gets (state
.ctx
,
815 pdf_trailer (state
.ctx
, doc
), "Root");
816 pdf_obj
*node
= pdf_dict_gets (state
.ctx
, root
, "Pages");
819 fz_throw (state
.ctx
, FZ_ERROR_GENERIC
, "cannot find page tree");
821 state
.pdflut
.idx
= 0;
822 pdf_collect_pages (doc
, node
);
826 static void initpdims (void)
830 fz_rect rootmediabox
;
831 int pageno
, trim
, show
;
832 int trimw
= 0, cxcount
;
833 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
837 if (state
.trimmargins
&& state
.trimcachepath
) {
838 trimf
= fopen (state
.trimcachepath
, "rb");
840 trimf
= fopen (state
.trimcachepath
, "wb");
845 if (state
.trimmargins
|| pdf
|| !state
.cxack
)
846 cxcount
= state
.pagecount
;
848 cxcount
= MIN (state
.pagecount
, 1);
852 obj
= pdf_dict_getp (state
.ctx
, pdf_trailer (state
.ctx
, pdf
),
853 "Root/Pages/MediaBox");
854 pdf_to_rect (state
.ctx
, obj
, &rootmediabox
);
857 #ifdef CACHE_PAGEREFS
858 if (pdf
&& (!state
.pdflut
.objs
|| state
.pdflut
.pdf
!= pdf
)) {
859 state
.pdflut
.objs
= calloc (sizeof (*state
.pdflut
.objs
), cxcount
);
860 if (!state
.pdflut
.objs
) {
861 err (1, "malloc pageobjs %zu %d %zu failed",
862 sizeof (*state
.pdflut
.objs
), cxcount
,
863 sizeof (*state
.pdflut
.objs
) * cxcount
);
865 state
.pdflut
.count
= cxcount
;
866 pdf_load_page_objs (pdf
);
867 state
.pdflut
.pdf
= pdf
;
871 for (pageno
= 0; pageno
< cxcount
; ++pageno
) {
877 pdf_obj
*pageref
, *pageobj
;
879 #ifdef CACHE_PAGEREFS
880 pageref
= state
.pdflut
.objs
[pageno
];
882 pageref
= pdf_lookup_page_obj (state
.ctx
, pdf
, pageno
);
884 pageobj
= pdf_resolve_indirect (state
.ctx
, pageref
);
886 if (state
.trimmargins
) {
887 fz_context
*ctx
= state
.ctx
;
892 page
= pdf_load_page (ctx
, pdf
, pageno
);
893 obj
= pdf_dict_gets (ctx
, pageobj
, "llpp.TrimBox");
894 trim
= state
.trimanew
|| !obj
;
900 dev
= fz_new_bbox_device (ctx
, &rect
);
901 dev
->hints
|= FZ_IGNORE_SHADE
;
902 fz_invert_matrix (&ctm
, &page
->ctm
);
903 pdf_run_page (ctx
, page
, dev
, &fz_identity
, NULL
);
904 fz_drop_device (ctx
, dev
);
906 rect
.x0
+= state
.trimfuzz
.x0
;
907 rect
.x1
+= state
.trimfuzz
.x1
;
908 rect
.y0
+= state
.trimfuzz
.y0
;
909 rect
.y1
+= state
.trimfuzz
.y1
;
910 fz_transform_rect (&rect
, &ctm
);
911 fz_intersect_rect (&rect
, &page
->mediabox
);
913 if (fz_is_empty_rect (&rect
)) {
914 mediabox
= page
->mediabox
;
920 obj
= pdf_new_array (ctx
, pdf
, 4);
921 pdf_array_push (ctx
, obj
, pdf_new_real (state
.ctx
, pdf
,
923 pdf_array_push (ctx
, obj
, pdf_new_real (state
.ctx
, pdf
,
925 pdf_array_push (ctx
, obj
, pdf_new_real (state
.ctx
, pdf
,
927 pdf_array_push (ctx
, obj
, pdf_new_real (state
.ctx
, pdf
,
929 pdf_dict_puts (state
.ctx
, pageobj
, "llpp.TrimBox", obj
);
932 mediabox
.x0
= pdf_to_real (ctx
,
933 pdf_array_get (ctx
, obj
, 0));
934 mediabox
.y0
= pdf_to_real (ctx
,
935 pdf_array_get (ctx
, obj
, 1));
936 mediabox
.x1
= pdf_to_real (ctx
,
937 pdf_array_get (ctx
, obj
, 2));
938 mediabox
.y1
= pdf_to_real (ctx
,
939 pdf_array_get (ctx
, obj
, 3));
942 rotate
= page
->rotate
;
943 fz_drop_page (ctx
, &page
->super
);
945 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
947 printd ("progress %f Trimming %d",
948 (double) (pageno
+ 1) / state
.pagecount
,
952 fz_catch (state
.ctx
) {
953 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
960 pdf_to_rect (state
.ctx
,
961 pdf_dict_gets (state
.ctx
, pageobj
, "MediaBox"),
963 if (fz_is_empty_rect (&mediabox
)) {
971 pdf_to_rect (state
.ctx
,
972 pdf_dict_gets (state
.ctx
, pageobj
, "CropBox"),
974 if (!fz_is_empty_rect (&cropbox
)) {
979 fz_intersect_rect (&mediabox
, &cropbox
);
984 if (fz_is_empty_rect (&rootmediabox
)) {
986 "cannot find page size for page %d\n",
990 mediabox
= rootmediabox
;
994 rotate
= pdf_to_int (state
.ctx
,
995 pdf_dict_gets (state
.ctx
,
1000 if (state
.trimmargins
&& trimw
) {
1003 fz_try (state
.ctx
) {
1004 page
= fz_load_page (state
.ctx
, state
.doc
, pageno
);
1005 fz_bound_page (state
.ctx
, page
, &mediabox
);
1007 if (state
.trimmargins
) {
1011 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
1012 dev
->hints
|= FZ_IGNORE_SHADE
;
1013 fz_run_page (state
.ctx
, page
, dev
,
1014 &fz_identity
, NULL
);
1015 fz_drop_device (state
.ctx
, dev
);
1017 rect
.x0
+= state
.trimfuzz
.x0
;
1018 rect
.x1
+= state
.trimfuzz
.x1
;
1019 rect
.y0
+= state
.trimfuzz
.y0
;
1020 rect
.y1
+= state
.trimfuzz
.y1
;
1021 fz_intersect_rect (&rect
, &mediabox
);
1023 if (!fz_is_empty_rect (&rect
)) {
1027 fz_drop_page (state
.ctx
, page
);
1029 printd ("progress %f loading %d",
1030 (double) (pageno
+ 1) / state
.pagecount
,
1034 fz_catch (state
.ctx
) {
1037 int n
= fwrite (&mediabox
, sizeof (mediabox
), 1, trimf
);
1039 err (1, "fwrite trim mediabox");
1045 int n
= fread (&mediabox
, sizeof (mediabox
), 1, trimf
);
1047 err (1, "fread trim mediabox %d", pageno
);
1052 fz_try (state
.ctx
) {
1053 page
= fz_load_page (state
.ctx
,
1055 fz_bound_page (state
.ctx
, page
, &mediabox
);
1056 fz_drop_page (state
.ctx
, page
);
1058 show
= !state
.trimmargins
&& pageno
% 20 == 0;
1060 printd ("progress %f Gathering dimensions %d",
1061 (double) (pageno
) / state
.pagecount
,
1065 fz_catch (state
.ctx
) {
1066 fprintf (stderr
, "failed to load page %d\n", pageno
);
1072 if (state
.pagedimcount
== 0
1073 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
1074 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
1077 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
1078 state
.pagedims
= realloc (state
.pagedims
, size
);
1079 if (!state
.pagedims
) {
1080 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
1081 size
, state
.pagedimcount
+ 1);
1084 p
= &state
.pagedims
[state
.pagedimcount
++];
1086 p
->mediabox
= mediabox
;
1091 printd ("progress 1 %s %d pages in %f seconds",
1092 state
.trimmargins
? "Trimmed" : "Processed",
1093 state
.pagecount
, end
- start
);
1096 if (fclose (trimf
)) {
1102 static void layout (void)
1107 struct pagedim
*p
= p
;
1108 double zw
, w
, maxw
= 0.0, zoom
= zoom
;
1110 if (state
.pagedimcount
== 0) return;
1112 switch (state
.fitmodel
) {
1113 case FitProportional
:
1114 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
) {
1117 p
= &state
.pagedims
[pindex
];
1118 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1120 fz_transform_rect (&box
, &rm
);
1122 x0
= MIN (box
.x0
, box
.x1
);
1123 x1
= MAX (box
.x0
, box
.x1
);
1126 maxw
= MAX (w
, maxw
);
1127 zoom
= state
.w
/ maxw
;
1139 ARSERT (0 && state
.fitmodel
);
1142 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
) {
1146 p
= &state
.pagedims
[pindex
];
1147 fz_rotate (&ctm
, state
.rotate
);
1148 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1150 fz_transform_rect (&box
, &rm
);
1151 w
= box
.x1
- box
.x0
;
1152 switch (state
.fitmodel
) {
1153 case FitProportional
:
1154 p
->left
= ((maxw
- w
) * zoom
) / 2.0;
1160 h
= box
.y1
- box
.y0
;
1162 zoom
= MIN (zw
, zh
);
1163 p
->left
= (maxw
- (w
* zoom
)) / 2.0;
1172 fz_scale (&p
->zoomctm
, zoom
, zoom
);
1173 fz_concat (&ctm
, &p
->zoomctm
, &ctm
);
1175 fz_rotate (&rm
, p
->rotate
);
1176 p
->pagebox
= p
->mediabox
;
1177 fz_transform_rect (&p
->pagebox
, &rm
);
1178 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1179 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1183 fz_transform_rect (&rect
, &ctm
);
1184 fz_round_rect (&p
->bounds
, &rect
);
1187 fz_translate (&tm
, 0, -p
->mediabox
.y1
);
1188 fz_scale (&sm
, zoom
, -zoom
);
1189 fz_concat (&ctm
, &tm
, &sm
);
1190 fz_concat (&p
->lctm
, &ctm
, &rm
);
1196 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1197 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1198 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1199 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1200 int boundw
= x1
- x0
;
1201 int boundh
= y1
- y0
;
1203 printd ("pdim %d %d %d %d", p
->pageno
, boundw
, boundh
, p
->left
);
1204 } while (p
-- != state
.pagedims
);
1208 struct anchor
{ int n
; int x
; int y
; int w
; int h
; }
1209 desttoanchor (fz_link_dest
*dest
)
1213 struct pagedim
*pdim
= state
.pagedims
;
1218 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1219 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1221 pdim
= &state
.pagedims
[i
];
1223 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1225 if (dest
->ld
.gotor
.flags
& fz_link_flag_l_valid
)
1226 p
.x
= dest
->ld
.gotor
.lt
.x
;
1229 p
.y
= dest
->ld
.gotor
.lt
.y
;
1230 fz_transform_point (&p
, &pdim
->lctm
);
1234 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1235 double x0
, x1
, y0
, y1
;
1237 x0
= MIN (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1238 x1
= MAX (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1240 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1241 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1243 a
.n
= dest
->ld
.gotor
.page
;
1248 static void recurse_outline (fz_outline
*outline
, int level
)
1251 switch (outline
->dest
.kind
) {
1254 struct anchor a
= desttoanchor (&outline
->dest
);
1257 printd ("o %d %d %d %d %s",
1258 level
, a
.n
, a
.y
, a
.h
, outline
->title
);
1264 printd ("ou %d %" FMT_s
" %s %s", level
,
1265 strlen (outline
->title
), outline
->title
,
1266 outline
->dest
.ld
.uri
.uri
);
1270 printd ("on %d %s", level
, outline
->title
);
1274 printd ("emsg Unhandled outline kind %d for %s\n",
1275 outline
->dest
.kind
, outline
->title
);
1278 if (outline
->down
) {
1279 recurse_outline (outline
->down
, level
+ 1);
1281 outline
= outline
->next
;
1285 static void process_outline (void)
1287 fz_outline
*outline
;
1289 if (!state
.needoutline
|| !state
.pagedimcount
) return;
1291 state
.needoutline
= 0;
1292 outline
= fz_load_outline (state
.ctx
, state
.doc
);
1294 recurse_outline (outline
, 0);
1295 fz_drop_outline (state
.ctx
, outline
);
1299 static char *strofspan (fz_text_span
*span
)
1304 size_t size
= 0, cap
= 80;
1306 p
= malloc (cap
+ 1);
1307 if (!p
) return NULL
;
1309 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1310 int n
= fz_runetochar (utf8
, ch
->c
);
1311 if (size
+ n
> cap
) {
1313 p
= realloc (p
, cap
+ 1);
1314 if (!p
) return NULL
;
1317 memcpy (p
+ size
, utf8
, n
);
1324 static int matchspan (regex_t
*re
, fz_text_span
*span
,
1325 int stop
, int pageno
, double start
)
1332 fz_point p1
, p2
, p3
, p4
;
1334 p
= strofspan (span
);
1337 ret
= regexec (re
, p
, 1, &rm
, 0);
1340 if (ret
!= REG_NOMATCH
) {
1343 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1344 printd ("msg regexec error `%.*s'",
1345 (int) size
, errbuf
);
1353 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1354 c
+= fz_runelen (span
->text
[a
].c
);
1356 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1357 c
+= fz_runelen (span
->text
[b
].c
);
1360 if (fz_runelen (span
->text
[b
].c
) > 1) {
1364 fz_text_char_bbox (state
.ctx
, &sb
, span
, a
);
1365 fz_text_char_bbox (state
.ctx
, &eb
, span
, b
);
1377 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1384 printd ("progress 1 found at %d `%.*s' in %f sec",
1385 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1389 printd ("match %d %d %f %f %f %f %f %f %f %f",
1401 static int compareblocks (const void *l
, const void *r
)
1403 fz_text_block
const *ls
= l
;
1404 fz_text_block
const* rs
= r
;
1405 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1408 /* wishful thinking function */
1409 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1414 fz_text_sheet
*sheet
;
1415 struct pagedim
*pdim
, *pdimprev
;
1416 int stop
= 0, niters
= 0;
1421 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1422 if (niters
++ == 5) {
1425 printd ("progress 1 attention requested aborting search at %d",
1430 printd ("progress %f searching in page %d",
1431 (double) (pageno
+ 1) / state
.pagecount
,
1436 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1437 pdim
= &state
.pagedims
[i
];
1438 if (pdim
->pageno
== pageno
) {
1441 if (pdim
->pageno
> pageno
) {
1450 sheet
= fz_new_text_sheet (state
.ctx
);
1451 text
= fz_new_text_page (state
.ctx
);
1452 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1454 page
= fz_load_page (state
.ctx
, state
.doc
, pageno
);
1456 fz_matrix ctm
= pagectm1 (page
, pdim
);
1457 fz_run_page (state
.ctx
, page
, tdev
, &ctm
, NULL
);
1460 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1461 fz_drop_device (state
.ctx
, tdev
);
1463 for (j
= 0; j
< text
->len
; ++j
) {
1466 fz_text_block
*block
;
1468 pb
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1469 if (pb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
1472 for (k
= 0; k
< block
->len
; ++k
) {
1477 line
= &block
->lines
[k
];
1478 if (line
->bbox
.y0
< y
+ 1) continue;
1481 line
= &block
->lines
[block
->len
- 1 - k
];
1482 if (line
->bbox
.y0
> y
- 1) continue;
1485 for (span
= line
->first_span
; span
; span
= span
->next
) {
1486 switch (matchspan (re
, span
, stop
, pageno
, start
)) {
1488 case 1: stop
= 1; break;
1489 case -1: stop
= 1; goto endloop
;
1503 fz_drop_text_page (state
.ctx
, text
);
1504 fz_drop_text_sheet (state
.ctx
, sheet
);
1505 fz_drop_page (state
.ctx
, page
);
1509 printd ("progress 1 no matches %f sec", end
- start
);
1511 printd ("clearrects");
1514 static void set_tex_params (int colorspace
)
1521 switch (colorspace
) {
1523 state
.texiform
= GL_RGBA8
;
1524 state
.texform
= GL_RGBA
;
1525 state
.texty
= GL_UNSIGNED_BYTE
;
1526 state
.colorspace
= fz_device_rgb (state
.ctx
);
1529 state
.texiform
= GL_RGBA8
;
1530 state
.texform
= GL_BGRA
;
1531 state
.texty
= endianness
.s
> 1
1532 ? GL_UNSIGNED_INT_8_8_8_8
1533 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1534 state
.colorspace
= fz_device_bgr (state
.ctx
);
1537 state
.texiform
= GL_LUMINANCE_ALPHA
;
1538 state
.texform
= GL_LUMINANCE_ALPHA
;
1539 state
.texty
= GL_UNSIGNED_BYTE
;
1540 state
.colorspace
= fz_device_gray (state
.ctx
);
1543 errx (1, "invalid colorspce %d", colorspace
);
1547 static void realloctexts (int texcount
)
1551 if (texcount
== state
.texcount
) return;
1553 if (texcount
< state
.texcount
) {
1554 glDeleteTextures (state
.texcount
- texcount
,
1555 state
.texids
+ texcount
);
1558 size
= texcount
* sizeof (*state
.texids
);
1559 state
.texids
= realloc (state
.texids
, size
);
1560 if (!state
.texids
) {
1561 err (1, "realloc texids %" FMT_s
, size
);
1564 size
= texcount
* sizeof (*state
.texowners
);
1565 state
.texowners
= realloc (state
.texowners
, size
);
1566 if (!state
.texowners
) {
1567 err (1, "realloc texowners %" FMT_s
, size
);
1569 if (texcount
> state
.texcount
) {
1572 glGenTextures (texcount
- state
.texcount
,
1573 state
.texids
+ state
.texcount
);
1574 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1575 state
.texowners
[i
].w
= -1;
1576 state
.texowners
[i
].slice
= NULL
;
1579 state
.texcount
= texcount
;
1583 static char *mbtoutf8 (char *s
)
1589 len
= mbstowcs (NULL
, s
, strlen (s
));
1594 if (len
== (size_t) -1) {
1599 tmp
= malloc (len
* sizeof (wchar_t));
1604 ret
= mbstowcs (tmp
, s
, len
);
1605 if (ret
== (size_t) -1) {
1611 for (i
= 0; i
< ret
; ++i
) {
1612 len
+= fz_runelen (tmp
[i
]);
1615 p
= r
= malloc (len
+ 1);
1621 for (i
= 0; i
< ret
; ++i
) {
1622 p
+= fz_runetochar (p
, tmp
[i
]);
1629 CAMLprim value
ml_mbtoutf8 (value s_v
)
1635 s
= String_val (s_v
);
1641 ret_v
= caml_copy_string (r
);
1647 static void * mainloop (void UNUSED_ATTR
*unused
)
1650 int len
, ret
, oldlen
= 0;
1655 errx (1, "readlen returned 0");
1658 if (oldlen
< len
+ 1) {
1659 p
= realloc (p
, len
+ 1);
1661 err (1, "realloc %d failed", len
+ 1);
1668 if (!strncmp ("open", p
, 4)) {
1669 int wthack
, off
, ok
= 0;
1675 ret
= sscanf (p
+ 5, " %d %d %n", &wthack
, &state
.cxack
, &off
);
1677 errx (1, "malformed open `%.*s' ret=%d", len
, p
, ret
);
1680 filename
= p
+ 5 + off
;
1681 filenamelen
= strlen (filename
);
1682 password
= filename
+ filenamelen
+ 1;
1685 fz_try (state
.ctx
) {
1686 ok
= openxref (filename
, password
);
1688 fz_catch (state
.ctx
) {
1689 utf8filename
= mbtoutf8 (filename
);
1690 printd ("msg Could not open %s", utf8filename
);
1700 utf8filename
= mbtoutf8 (filename
);
1701 printd ("msg Opened %s (press h/F1 to get help)",
1703 if (utf8filename
!= filename
) {
1704 free (utf8filename
);
1707 state
.needoutline
= 1;
1710 else if (!strncmp ("cs", p
, 2)) {
1713 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1715 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1718 set_tex_params (colorspace
);
1719 for (i
= 0; i
< state
.texcount
; ++i
) {
1720 state
.texowners
[i
].w
= -1;
1721 state
.texowners
[i
].slice
= NULL
;
1725 else if (!strncmp ("freepage", p
, 8)) {
1728 ret
= sscanf (p
+ 8, " %" SCN_ptr
, SCN_ptr_cast (&ptr
));
1730 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1734 else if (!strncmp ("freetile", p
, 8)) {
1737 ret
= sscanf (p
+ 8, " %" SCN_ptr
, SCN_ptr_cast (&ptr
));
1739 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1743 else if (!strncmp ("search", p
, 6)) {
1744 int icase
, pageno
, y
, len2
, forward
;
1748 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1749 &icase
, &pageno
, &y
, &forward
, &len2
);
1751 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1754 pattern
= p
+ 6 + len2
;
1755 ret
= regcomp (&re
, pattern
,
1756 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1761 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1762 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1765 search (&re
, pageno
, y
, forward
);
1769 else if (!strncmp ("geometry", p
, 8)) {
1773 ret
= sscanf (p
+ 8, " %d %d %d", &w
, &h
, &fitmodel
);
1775 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1783 for (i
= 0; i
< state
.texcount
; ++i
) {
1784 state
.texowners
[i
].slice
= NULL
;
1787 state
.fitmodel
= fitmodel
;
1792 unlock ("geometry");
1793 printd ("continue %d", state
.pagecount
);
1795 else if (!strncmp ("reqlayout", p
, 9)) {
1798 unsigned int fitmodel
;
1799 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
1802 ret
= sscanf (p
+ 9, " %d %u %d %n",
1803 &rotate
, &fitmodel
, &h
, &off
);
1805 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1808 if (state
.rotate
!= rotate
|| state
.fitmodel
!= fitmodel
) {
1811 state
.rotate
= rotate
;
1812 state
.fitmodel
= fitmodel
;
1817 nameddest
= p
+ 9 + off
;
1818 if (pdf
&& nameddest
&& *nameddest
) {
1821 pdf_obj
*needle
, *obj
;
1823 needle
= pdf_new_string (state
.ctx
, pdf
, nameddest
,
1824 strlen (nameddest
));
1825 obj
= pdf_lookup_dest (state
.ctx
, pdf
, needle
);
1827 dest
= pdf_parse_link_dest (state
.ctx
, pdf
,
1830 a
= desttoanchor (&dest
);
1832 printd ("a %d %d %d", a
.n
, a
.x
, a
.y
);
1835 printd ("emsg failed to parse destination `%s'\n",
1840 printd ("emsg destination `%s' not found\n",
1843 pdf_drop_obj (state
.ctx
, needle
);
1847 unlock ("reqlayout");
1848 printd ("continue %d", state
.pagecount
);
1850 else if (!strncmp ("page", p
, 4)) {
1855 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1857 errx (1, "bad page line `%.*s' ret=%d", len
, p
, ret
);
1862 page
= loadpage (pageno
, pindex
);
1866 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast (page
), b
- a
);
1868 else if (!strncmp ("tile", p
, 4)) {
1875 ret
= sscanf (p
+ 4, " %" SCN_ptr
" %d %d %d %d %" SCN_ptr
,
1876 SCN_ptr_cast (&page
), &x
, &y
, &w
, &h
,
1877 SCN_ptr_cast (&data
));
1879 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1884 tile
= rendertile (page
, x
, y
, w
, h
, data
);
1888 printd ("tile %d %d %" FMT_ptr
" %u %f",
1890 FMT_ptr_cast (tile
),
1891 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1894 else if (!strncmp ("trimset", p
, 7)) {
1898 ret
= sscanf (p
+ 7, " %d %d %d %d %d",
1899 &trimmargins
, &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1901 errx (1, "malformed trimset `%.*s' ret=%d", len
, p
, ret
);
1904 state
.trimmargins
= trimmargins
;
1905 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1907 state
.trimfuzz
= fuzz
;
1911 else if (!strncmp ("settrim", p
, 7)) {
1915 ret
= sscanf (p
+ 7, " %d %d %d %d %d",
1916 &trimmargins
, &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1918 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1922 state
.trimmargins
= trimmargins
;
1923 state
.needoutline
= 1;
1924 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1926 state
.trimfuzz
= fuzz
;
1928 state
.pagedimcount
= 0;
1929 free (state
.pagedims
);
1930 state
.pagedims
= NULL
;
1935 printd ("continue %d", state
.pagecount
);
1937 else if (!strncmp ("sliceh", p
, 6)) {
1940 ret
= sscanf (p
+ 6, " %d", &h
);
1942 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1944 if (h
!= state
.sliceheight
) {
1947 state
.sliceheight
= h
;
1948 for (i
= 0; i
< state
.texcount
; ++i
) {
1949 state
.texowners
[i
].w
= -1;
1950 state
.texowners
[i
].h
= -1;
1951 state
.texowners
[i
].slice
= NULL
;
1955 else if (!strncmp ("interrupt", p
, 9)) {
1956 printd ("vmsg interrupted");
1959 errx (1, "unknown command %.*s", len
, p
);
1965 CAMLprim value
ml_realloctexts (value texcount_v
)
1967 CAMLparam1 (texcount_v
);
1970 if (trylock ("ml_realloctexts")) {
1974 realloctexts (Int_val (texcount_v
));
1976 unlock ("ml_realloctexts");
1979 CAMLreturn (Val_bool (ok
));
1982 static void recti (int x0
, int y0
, int x1
, int y1
)
1984 GLfloat
*v
= state
.vertices
;
1986 glVertexPointer (2, GL_FLOAT
, 0, v
);
1987 v
[0] = x0
; v
[1] = y0
;
1988 v
[2] = x1
; v
[3] = y0
;
1989 v
[4] = x0
; v
[5] = y1
;
1990 v
[6] = x1
; v
[7] = y1
;
1991 glDrawArrays (GL_TRIANGLE_STRIP
, 0, 4);
1994 static void showsel (struct page
*page
, int ox
, int oy
)
2000 fz_page_block
*pageb
;
2001 fz_text_block
*block
;
2002 struct mark first
, last
;
2003 unsigned char selcolor
[] = {15,15,15,140};
2005 first
= page
->fmark
;
2008 if (!first
.span
|| !last
.span
) return;
2010 glEnable (GL_BLEND
);
2011 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
2012 glColor4ubv (selcolor
);
2014 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2015 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2016 for (pageb
= page
->text
->blocks
;
2017 pageb
< page
->text
->blocks
+ page
->text
->len
;
2019 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
2020 block
= pageb
->u
.text
;
2022 for (line
= block
->lines
;
2023 line
< block
->lines
+ block
->len
;
2026 rect
= fz_empty_rect
;
2028 for (span
= line
->first_span
; span
; span
= span
->next
) {
2030 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
2035 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
2037 j
= MIN (first
.i
, last
.i
);
2038 k
= MAX (first
.i
, last
.i
);
2041 if (span
== first
.span
) {
2045 else if (span
== last
.span
) {
2052 for (i
= j
; i
<= k
; ++i
) {
2054 fz_union_rect (&rect
,
2055 fz_text_char_bbox (state
.ctx
, &bbox1
,
2058 fz_round_rect (&bbox
, &rect
);
2059 lprintf ("%d %d %d %d oy=%d ox=%d\n",
2066 recti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
2067 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
2068 if (span
== last
.span
) {
2071 rect
= fz_empty_rect
;
2077 glDisable (GL_BLEND
);
2082 static void stipplerect (fz_matrix
*m
,
2090 fz_transform_point (p1
, m
);
2091 fz_transform_point (p2
, m
);
2092 fz_transform_point (p3
, m
);
2093 fz_transform_point (p4
, m
);
2099 t
= sqrtf (w
*w
+ h
*h
) * .25f
;
2103 s
= sqrtf (w
*w
+ h
*h
) * .25f
;
2105 texcoords
[0] = 0; vertices
[0] = p1
->x
; vertices
[1] = p1
->y
;
2106 texcoords
[1] = t
; vertices
[2] = p2
->x
; vertices
[3] = p2
->y
;
2108 texcoords
[2] = 0; vertices
[4] = p2
->x
; vertices
[5] = p2
->y
;
2109 texcoords
[3] = s
; vertices
[6] = p3
->x
; vertices
[7] = p3
->y
;
2111 texcoords
[4] = 0; vertices
[8] = p3
->x
; vertices
[9] = p3
->y
;
2112 texcoords
[5] = t
; vertices
[10] = p4
->x
; vertices
[11] = p4
->y
;
2114 texcoords
[6] = 0; vertices
[12] = p4
->x
; vertices
[13] = p4
->y
;
2115 texcoords
[7] = s
; vertices
[14] = p1
->x
; vertices
[15] = p1
->y
;
2117 glDrawArrays (GL_LINES
, 0, 8);
2120 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
2123 fz_matrix ctm
, tm
, pm
;
2124 fz_link
*link
, *links
;
2125 GLfloat
*texcoords
= state
.texcoords
;
2126 GLfloat
*vertices
= state
.vertices
;
2128 links
= fz_load_links (state
.ctx
, page
->fzpage
);
2130 glEnable (GL_TEXTURE_1D
);
2131 glEnable (GL_BLEND
);
2132 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2133 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
2135 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2136 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2137 fz_translate (&tm
, xoff
, yoff
);
2138 pm
= pagectm (page
);
2139 fz_concat (&ctm
, &pm
, &tm
);
2141 glTexCoordPointer (1, GL_FLOAT
, 0, texcoords
);
2142 glVertexPointer (2, GL_FLOAT
, 0, vertices
);
2144 for (link
= links
; link
; link
= link
->next
) {
2145 fz_point p1
, p2
, p3
, p4
;
2147 p1
.x
= link
->rect
.x0
;
2148 p1
.y
= link
->rect
.y0
;
2150 p2
.x
= link
->rect
.x1
;
2151 p2
.y
= link
->rect
.y0
;
2153 p3
.x
= link
->rect
.x1
;
2154 p3
.y
= link
->rect
.y1
;
2156 p4
.x
= link
->rect
.x0
;
2157 p4
.y
= link
->rect
.y1
;
2159 switch (link
->dest
.kind
) {
2160 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
2161 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
2162 case FZ_LINK_LAUNCH
: glColor3ub (0, 255, 0); break;
2163 default: glColor3ub (0, 0, 0); break;
2165 stipplerect (&ctm
, &p1
, &p2
, &p3
, &p4
, texcoords
, vertices
);
2168 for (i
= 0; i
< page
->annotcount
; ++i
) {
2169 fz_point p1
, p2
, p3
, p4
;
2170 struct annot
*annot
= &page
->annots
[i
];
2172 p1
.x
= annot
->bbox
.x0
;
2173 p1
.y
= annot
->bbox
.y0
;
2175 p2
.x
= annot
->bbox
.x1
;
2176 p2
.y
= annot
->bbox
.y0
;
2178 p3
.x
= annot
->bbox
.x1
;
2179 p3
.y
= annot
->bbox
.y1
;
2181 p4
.x
= annot
->bbox
.x0
;
2182 p4
.y
= annot
->bbox
.y1
;
2184 glColor3ub (0, 0, 128);
2185 stipplerect (&ctm
, &p1
, &p2
, &p3
, &p4
, texcoords
, vertices
);
2188 glDisable (GL_BLEND
);
2189 glDisable (GL_TEXTURE_1D
);
2192 static int compareslinks (const void *l
, const void *r
)
2194 struct slink
const *ls
= l
;
2195 struct slink
const *rs
= r
;
2196 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
2197 return rs
->bbox
.x0
- rs
->bbox
.x0
;
2199 return ls
->bbox
.y0
- rs
->bbox
.y0
;
2202 static void droptext (struct page
*page
)
2205 fz_drop_text_page (state
.ctx
, page
->text
);
2208 page
->fmark
.span
= NULL
;
2209 page
->lmark
.span
= NULL
;
2213 fz_drop_text_sheet (state
.ctx
, page
->sheet
);
2218 static void dropannots (struct page
*page
)
2221 free (page
->annots
);
2222 page
->annots
= NULL
;
2223 page
->annotcount
= 0;
2227 static void ensureannots (struct page
*page
)
2230 size_t annotsize
= sizeof (*page
->annots
);
2233 if (state
.gen
!= page
->agen
) {
2235 page
->agen
= state
.gen
;
2237 if (page
->annots
) return;
2239 for (annot
= fz_first_annot (state
.ctx
, page
->fzpage
);
2241 annot
= fz_next_annot (state
.ctx
, page
->fzpage
, annot
)) {
2246 page
->annotcount
= count
;
2247 page
->annots
= calloc (count
, annotsize
);
2248 if (!page
->annots
) {
2249 err (1, "calloc annots %d", count
);
2252 for (annot
= fz_first_annot (state
.ctx
, page
->fzpage
), i
= 0;
2254 annot
= fz_next_annot (state
.ctx
, page
->fzpage
, annot
), i
++) {
2257 fz_bound_annot (state
.ctx
, page
->fzpage
, annot
, &rect
);
2258 page
->annots
[i
].annot
= annot
;
2259 fz_round_rect (&page
->annots
[i
].bbox
, &rect
);
2264 static void dropslinks (struct page
*page
)
2267 free (page
->slinks
);
2268 page
->slinks
= NULL
;
2269 page
->slinkcount
= 0;
2273 static void ensureslinks (struct page
*page
)
2277 size_t slinksize
= sizeof (*page
->slinks
);
2278 fz_link
*link
, *links
;
2280 ensureannots (page
);
2281 if (state
.gen
!= page
->sgen
) {
2283 page
->sgen
= state
.gen
;
2285 if (page
->slinks
) return;
2287 links
= fz_load_links (state
.ctx
, page
->fzpage
);
2288 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
2290 count
= page
->annotcount
;
2291 for (link
= links
; link
; link
= link
->next
) {
2297 page
->slinkcount
= count
;
2298 page
->slinks
= calloc (count
, slinksize
);
2299 if (!page
->slinks
) {
2300 err (1, "calloc slinks %d", count
);
2303 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
2307 fz_transform_rect (&rect
, &ctm
);
2308 page
->slinks
[i
].tag
= SLINK
;
2309 page
->slinks
[i
].u
.link
= link
;
2310 fz_round_rect (&page
->slinks
[i
].bbox
, &rect
);
2312 for (j
= 0; j
< page
->annotcount
; ++j
, ++i
) {
2314 fz_bound_annot (state
.ctx
,
2316 page
->annots
[j
].annot
,
2318 fz_transform_rect (&rect
, &ctm
);
2319 fz_round_rect (&page
->slinks
[i
].bbox
, &rect
);
2321 page
->slinks
[i
].tag
= SANNOT
;
2322 page
->slinks
[i
].u
.annot
= page
->annots
[j
].annot
;
2324 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
2328 /* slightly tweaked fmt_ulong by D.J. Bernstein */
2329 static void fmt_linkn (char *s
, unsigned int u
)
2331 unsigned int len
; unsigned int q
;
2332 unsigned int zma
= 'z' - 'a' + 1;
2334 while (q
> zma
- 1) { ++len
; q
/= zma
; }
2337 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
2338 /* handles u == 0 */
2343 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
2344 int noff
, char *targ
, int tlen
, int hfsize
)
2348 struct slink
*slink
;
2349 double x0
, y0
, x1
, y1
, w
;
2351 ensureslinks (page
);
2352 glColor3ub (0xc3, 0xb0, 0x91);
2353 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2354 fmt_linkn (buf
, i
+ noff
);
2355 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2356 slink
= &page
->slinks
[i
];
2358 x0
= slink
->bbox
.x0
+ xoff
- 5;
2359 y1
= slink
->bbox
.y0
+ yoff
- 5;
2360 y0
= y1
+ 10 + hfsize
;
2361 w
= measure_string (state
.face
, hfsize
, buf
);
2363 recti (x0
, y0
, x1
, y1
);
2367 glEnable (GL_BLEND
);
2368 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2369 glEnable (GL_TEXTURE_2D
);
2370 glColor3ub (0, 0, 0);
2371 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2372 fmt_linkn (buf
, i
+ noff
);
2373 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2374 slink
= &page
->slinks
[i
];
2376 x0
= slink
->bbox
.x0
+ xoff
;
2377 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
2378 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
2381 glDisable (GL_TEXTURE_2D
);
2382 glDisable (GL_BLEND
);
2385 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
2388 struct slice
*slice1
;
2389 unsigned char *texdata
;
2392 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
2393 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
2395 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
2396 && state
.texowners
[slice
->texindex
].slice
== slice
) {
2397 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
2401 int texindex
= state
.texindex
++ % state
.texcount
;
2403 if (state
.texowners
[texindex
].w
== tile
->w
) {
2404 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2408 state
.texowners
[texindex
].h
= slice
->h
;
2412 state
.texowners
[texindex
].h
= slice
->h
;
2415 state
.texowners
[texindex
].w
= tile
->w
;
2416 state
.texowners
[texindex
].slice
= slice
;
2417 slice
->texindex
= texindex
;
2419 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2421 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
2425 texdata
= tile
->pixmap
->samples
;
2428 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2440 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2452 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
2457 CAMLprim value
ml_begintiles (value unit_v
)
2459 CAMLparam1 (unit_v
);
2460 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2461 glTexCoordPointer (2, GL_FLOAT
, 0, state
.texcoords
);
2462 glVertexPointer (2, GL_FLOAT
, 0, state
.vertices
);
2463 CAMLreturn (unit_v
);
2466 CAMLprim value
ml_endtiles (value unit_v
)
2468 CAMLparam1 (unit_v
);
2469 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2470 CAMLreturn (unit_v
);
2473 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2475 CAMLparam2 (args_v
, ptr_v
);
2476 int dispx
= Int_val (Field (args_v
, 0));
2477 int dispy
= Int_val (Field (args_v
, 1));
2478 int dispw
= Int_val (Field (args_v
, 2));
2479 int disph
= Int_val (Field (args_v
, 3));
2480 int tilex
= Int_val (Field (args_v
, 4));
2481 int tiley
= Int_val (Field (args_v
, 5));
2482 char *s
= String_val (ptr_v
);
2483 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2484 int slicey
, firstslice
;
2485 struct slice
*slice
;
2486 GLfloat
*texcoords
= state
.texcoords
;
2487 GLfloat
*vertices
= state
.vertices
;
2489 firstslice
= tiley
/ tile
->sliceheight
;
2490 slice
= &tile
->slices
[firstslice
];
2491 slicey
= tiley
% tile
->sliceheight
;
2496 dh
= slice
->h
- slicey
;
2497 dh
= MIN (disph
, dh
);
2498 uploadslice (tile
, slice
);
2500 texcoords
[0] = tilex
; texcoords
[1] = slicey
;
2501 texcoords
[2] = tilex
+dispw
; texcoords
[3] = slicey
;
2502 texcoords
[4] = tilex
; texcoords
[5] = slicey
+dh
;
2503 texcoords
[6] = tilex
+dispw
; texcoords
[7] = slicey
+dh
;
2505 vertices
[0] = dispx
; vertices
[1] = dispy
;
2506 vertices
[2] = dispx
+dispw
; vertices
[3] = dispy
;
2507 vertices
[4] = dispx
; vertices
[5] = dispy
+dh
;
2508 vertices
[6] = dispx
+dispw
; vertices
[7] = dispy
+dh
;
2510 glDrawArrays (GL_TRIANGLE_STRIP
, 0, 4);
2514 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2517 CAMLreturn (Val_unit
);
2520 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2521 value xoff_v
, value yoff_v
,
2524 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2525 int xoff
= Int_val (xoff_v
);
2526 int yoff
= Int_val (yoff_v
);
2527 int noff
= Int_val (Field (li_v
, 0));
2528 char *targ
= String_val (Field (li_v
, 1));
2529 int tlen
= caml_string_length (Field (li_v
, 1));
2530 int hfsize
= Int_val (Field (li_v
, 2));
2531 char *s
= String_val (ptr_v
);
2532 int hlmask
= Int_val (hlinks_v
);
2533 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2535 if (!page
->fzpage
) {
2536 /* deal with loadpage failed pages */
2540 ensureannots (page
);
2542 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2543 if (trylock ("ml_postprocess")) {
2548 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2549 noff
= page
->slinkcount
;
2551 if (page
->tgen
== state
.gen
) {
2552 showsel (page
, xoff
, yoff
);
2554 unlock ("ml_postprocess");
2557 CAMLreturn (Val_int (noff
));
2560 static struct annot
*getannot (struct page
*page
, int x
, int y
)
2565 const fz_matrix
*tctm
;
2566 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
2568 if (!page
->annots
) return NULL
;
2571 trimctm ((pdf_page
*) page
->fzpage
, page
->pdimno
);
2572 tctm
= &state
.pagedims
[page
->pdimno
].tctm
;
2575 tctm
= &fz_identity
;
2581 fz_concat (&ctm
, tctm
, &state
.pagedims
[page
->pdimno
].ctm
);
2582 fz_invert_matrix (&ctm
, &ctm
);
2583 fz_transform_point (&p
, &ctm
);
2586 for (i
= 0; i
< page
->annotcount
; ++i
) {
2587 struct annot
*a
= &page
->annots
[i
];
2588 pdf_annot
*annot
= (pdf_annot
*) a
->annot
;
2589 if (p
.x
>= annot
->pagerect
.x0
&& p
.x
<= annot
->pagerect
.x1
) {
2590 if (p
.y
>= annot
->pagerect
.y0
&& p
.y
<= annot
->pagerect
.y1
) {
2599 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2603 const fz_matrix
*tctm
;
2604 fz_link
*link
, *links
;
2606 tctm
= &fz_identity
;
2607 links
= fz_load_links (state
.ctx
, page
->fzpage
);
2612 fz_concat (&ctm
, tctm
, &state
.pagedims
[page
->pdimno
].ctm
);
2613 fz_invert_matrix (&ctm
, &ctm
);
2614 fz_transform_point (&p
, &ctm
);
2616 for (link
= links
; link
; link
= link
->next
) {
2617 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2618 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2626 static void ensuretext (struct page
*page
)
2628 if (state
.gen
!= page
->tgen
) {
2630 page
->tgen
= state
.gen
;
2636 page
->text
= fz_new_text_page (state
.ctx
);
2637 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2638 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2639 ctm
= pagectm (page
);
2640 fz_begin_page (state
.ctx
, tdev
, &fz_infinite_rect
, &ctm
);
2641 fz_run_display_list (state
.ctx
, page
->dlist
,
2642 tdev
, &ctm
, &fz_infinite_rect
, NULL
);
2643 qsort (page
->text
->blocks
, page
->text
->len
,
2644 sizeof (*page
->text
->blocks
), compareblocks
);
2645 fz_end_page (state
.ctx
, tdev
);
2646 fz_drop_device (state
.ctx
, tdev
);
2650 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2652 CAMLparam2 (start_page_v
, dir_v
);
2654 int i
, dir
= Int_val (dir_v
);
2655 int start_page
= Int_val (start_page_v
);
2656 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2657 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
2659 ret_v
= Val_int (0);
2660 lock ("ml_findpage_with_links");
2661 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2665 pdf_page
*page
= NULL
;
2667 fz_try (state
.ctx
) {
2668 page
= pdf_load_page (state
.ctx
, pdf
, i
);
2669 found
= !!page
->links
|| !!page
->annots
;
2671 fz_catch (state
.ctx
) {
2675 fz_drop_page (state
.ctx
, &page
->super
);
2679 fz_page
*page
= fz_load_page (state
.ctx
, state
.doc
, i
);
2680 found
= !!fz_load_links (state
.ctx
, page
);
2681 fz_drop_page (state
.ctx
, page
);
2685 ret_v
= caml_alloc_small (1, 1);
2686 Field (ret_v
, 0) = Val_int (i
);
2691 unlock ("ml_findpage_with_links");
2695 enum { dir_first
, dir_last
};
2696 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2698 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2700 CAMLparam2 (ptr_v
, dir_v
);
2701 CAMLlocal2 (ret_v
, pos_v
);
2703 int dirtag
, i
, slinkindex
;
2704 struct slink
*found
= NULL
,*slink
;
2705 char *s
= String_val (ptr_v
);
2707 page
= parse_pointer ("ml_findlink", s
);
2708 ret_v
= Val_int (0);
2709 /* This is scary we are not taking locks here ensureslinks does
2710 not modify state and given that we obtained the page it can not
2711 disappear under us either */
2712 lock ("ml_findlink");
2713 ensureslinks (page
);
2715 if (Is_block (dir_v
)) {
2716 dirtag
= Tag_val (dir_v
);
2718 case dir_first_visible
:
2720 int x0
, y0
, dir
, first_index
, last_index
;
2722 pos_v
= Field (dir_v
, 0);
2723 x0
= Int_val (Field (pos_v
, 0));
2724 y0
= Int_val (Field (pos_v
, 1));
2725 dir
= Int_val (Field (pos_v
, 2));
2730 last_index
= page
->slinkcount
;
2733 first_index
= page
->slinkcount
- 1;
2737 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2738 slink
= &page
->slinks
[i
];
2739 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2748 slinkindex
= Int_val (Field (dir_v
, 0));
2749 found
= &page
->slinks
[slinkindex
];
2750 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2751 slink
= &page
->slinks
[i
];
2752 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2760 slinkindex
= Int_val (Field (dir_v
, 0));
2761 found
= &page
->slinks
[slinkindex
];
2762 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2763 slink
= &page
->slinks
[i
];
2764 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2772 slinkindex
= Int_val (Field (dir_v
, 0));
2773 found
= &page
->slinks
[slinkindex
];
2774 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2775 slink
= &page
->slinks
[i
];
2776 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2784 slinkindex
= Int_val (Field (dir_v
, 0));
2785 found
= &page
->slinks
[slinkindex
];
2786 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2787 slink
= &page
->slinks
[i
];
2788 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2797 dirtag
= Int_val (dir_v
);
2800 found
= page
->slinks
;
2805 found
= page
->slinks
+ (page
->slinkcount
- 1);
2811 ret_v
= caml_alloc_small (2, 1);
2812 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2815 unlock ("ml_findlink");
2819 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
,
2820 unamed
, uremote
, uremotedest
, uannot
};
2826 switch (link->dest.kind) { \
2827 case FZ_LINK_GOTO: \
2831 pageno = link->dest.ld.gotor.page; \
2835 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2836 p.y = link->dest.ld.gotor.lt.y; \
2837 fz_transform_point (&p, &pdim->lctm); \
2838 if (p.y < 0) p.y = 0; \
2840 tup_v = caml_alloc_tuple (2); \
2841 ret_v = caml_alloc_small (1, ugoto); \
2842 Field (tup_v, 0) = Val_int (pageno); \
2843 Field (tup_v, 1) = Val_int (p.y); \
2844 Field (ret_v, 0) = tup_v; \
2849 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2850 ret_v = caml_alloc_small (1, uuri); \
2851 Field (ret_v, 0) = str_v; \
2854 case FZ_LINK_LAUNCH: \
2855 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2856 ret_v = caml_alloc_small (1, ulaunch); \
2857 Field (ret_v, 0) = str_v; \
2860 case FZ_LINK_NAMED: \
2861 str_v = caml_copy_string (link->dest.ld.named.named); \
2862 ret_v = caml_alloc_small (1, unamed); \
2863 Field (ret_v, 0) = str_v; \
2866 case FZ_LINK_GOTOR: \
2870 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2871 pageno = link->dest.ld.gotor.page; \
2872 if (pageno == -1) { \
2873 gr_v = caml_copy_string (link->dest.ld.gotor.dest); \
2874 rty = uremotedest; \
2877 gr_v = Val_int (pageno); \
2880 tup_v = caml_alloc_tuple (2); \
2881 ret_v = caml_alloc_small (1, rty); \
2882 Field (tup_v, 0) = str_v; \
2883 Field (tup_v, 1) = gr_v; \
2884 Field (ret_v, 0) = tup_v; \
2892 snprintf (buf, sizeof (buf), \
2893 "unhandled link kind %d", link->dest.kind); \
2894 str_v = caml_copy_string (buf); \
2895 ret_v = caml_alloc_small (1, uunexpected); \
2896 Field (ret_v, 0) = str_v; \
2902 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2904 CAMLparam2 (ptr_v
, n_v
);
2905 CAMLlocal4 (ret_v
, tup_v
, str_v
, gr_v
);
2908 struct pagedim
*pdim
;
2909 char *s
= String_val (ptr_v
);
2910 struct slink
*slink
;
2912 /* See ml_findlink for caveat */
2914 ret_v
= Val_int (0);
2915 page
= parse_pointer ("ml_getlink", s
);
2916 ensureslinks (page
);
2917 pdim
= &state
.pagedims
[page
->pdimno
];
2918 slink
= &page
->slinks
[Int_val (n_v
)];
2919 if (slink
->tag
== SLINK
) {
2920 link
= slink
->u
.link
;
2924 ret_v
= caml_alloc_small (1, uannot
);
2925 tup_v
= caml_alloc_tuple (2);
2926 Field (ret_v
, 0) = tup_v
;
2927 Field (tup_v
, 0) = ptr_v
;
2928 Field (tup_v
, 1) = n_v
;
2934 CAMLprim value
ml_getannotcontents (value ptr_v
, value n_v
)
2936 CAMLparam2 (ptr_v
, n_v
);
2937 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
2939 char *s
= String_val (ptr_v
);
2941 struct slink
*slink
;
2943 page
= parse_pointer ("ml_getannotcontent", s
);
2944 slink
= &page
->slinks
[Int_val (n_v
)];
2945 CAMLreturn (caml_copy_string (
2946 pdf_annot_contents (state
.ctx
, pdf
,
2947 (pdf_annot
*) slink
->u
.annot
)));
2950 CAMLreturn (caml_copy_string (""));
2954 CAMLprim value
ml_getlinkcount (value ptr_v
)
2958 char *s
= String_val (ptr_v
);
2960 page
= parse_pointer ("ml_getlinkcount", s
);
2961 CAMLreturn (Val_int (page
->slinkcount
));
2964 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2966 CAMLparam2 (ptr_v
, n_v
);
2969 struct slink
*slink
;
2970 char *s
= String_val (ptr_v
);
2971 /* See ml_findlink for caveat */
2973 page
= parse_pointer ("ml_getlinkrect", s
);
2974 ret_v
= caml_alloc_tuple (4);
2975 ensureslinks (page
);
2977 slink
= &page
->slinks
[Int_val (n_v
)];
2978 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2979 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2980 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2981 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2982 unlock ("ml_getlinkrect");
2986 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2988 CAMLparam3 (ptr_v
, x_v
, y_v
);
2989 CAMLlocal4 (ret_v
, tup_v
, str_v
, gr_v
);
2991 struct annot
*annot
;
2993 char *ptr
= String_val (ptr_v
);
2994 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2995 struct pagedim
*pdim
;
2997 ret_v
= Val_int (0);
2998 if (trylock ("ml_whatsunder")) {
3002 page
= parse_pointer ("ml_whatsunder", ptr
);
3003 pdim
= &state
.pagedims
[page
->pdimno
];
3004 x
+= pdim
->bounds
.x0
;
3005 y
+= pdim
->bounds
.y0
;
3008 annot
= getannot (page
, x
, y
);
3012 ensureslinks (page
);
3013 for (i
= 0; i
< page
->slinkcount
; ++i
) {
3014 if (page
->slinks
[i
].tag
== SANNOT
3015 && page
->slinks
[i
].u
.annot
== annot
->annot
) {
3020 ret_v
= caml_alloc_small (1, uannot
);
3021 tup_v
= caml_alloc_tuple (2);
3022 Field (ret_v
, 0) = tup_v
;
3023 Field (tup_v
, 0) = ptr_v
;
3024 Field (tup_v
, 1) = Val_int (n
);
3029 link
= getlink (page
, x
, y
);
3035 fz_page_block
*pageb
;
3036 fz_text_block
*block
;
3039 for (pageb
= page
->text
->blocks
;
3040 pageb
< page
->text
->blocks
+ page
->text
->len
;
3043 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3044 block
= pageb
->u
.text
;
3047 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3050 for (line
= block
->lines
;
3051 line
< block
->lines
+ block
->len
;
3056 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3059 for (span
= line
->first_span
; span
; span
= span
->next
) {
3063 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3066 for (charnum
= 0; charnum
< span
->len
; ++charnum
) {
3068 fz_text_char_bbox (state
.ctx
, &bbox
, span
, charnum
);
3071 if (x
>= b
->x0
&& x
<= b
->x1
3072 && y
>= b
->y0
&& y
<= b
->y1
) {
3073 fz_text_style
*style
= span
->text
->style
;
3075 style
->font
&& style
->font
->name
3077 : "Span has no font name"
3079 FT_FaceRec
*face
= style
->font
->ft_face
;
3080 if (face
&& face
->family_name
) {
3082 char *n1
= face
->family_name
;
3083 size_t l1
= strlen (n1
);
3084 size_t l2
= strlen (n2
);
3086 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
3087 s
= malloc (l1
+ l2
+ 2);
3091 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
3092 str_v
= caml_copy_string (s
);
3097 if (str_v
== Val_unit
) {
3098 str_v
= caml_copy_string (n2
);
3100 ret_v
= caml_alloc_small (1, utext
);
3101 Field (ret_v
, 0) = str_v
;
3110 unlock ("ml_whatsunder");
3116 enum { mark_page
, mark_block
, mark_line
, mark_word
};
3118 static int uninteresting (int c
)
3120 return c
== ' ' || c
== '\n' || c
== '\t' || c
== '\n' || c
== '\r'
3124 CAMLprim value
ml_clearmark (value ptr_v
)
3127 char *s
= String_val (ptr_v
);
3130 if (trylock ("ml_clearmark")) {
3134 page
= parse_pointer ("ml_clearmark", s
);
3135 page
->fmark
.span
= NULL
;
3136 page
->lmark
.span
= NULL
;
3140 unlock ("ml_clearmark");
3142 CAMLreturn (Val_unit
);
3145 CAMLprim value
ml_markunder (value ptr_v
, value x_v
, value y_v
, value mark_v
)
3147 CAMLparam4 (ptr_v
, x_v
, y_v
, mark_v
);
3152 fz_page_block
*pageb
;
3153 fz_text_block
*block
;
3154 struct pagedim
*pdim
;
3155 int mark
= Int_val (mark_v
);
3156 char *s
= String_val (ptr_v
);
3157 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3159 ret_v
= Val_bool (0);
3160 if (trylock ("ml_markunder")) {
3164 page
= parse_pointer ("ml_markunder", s
);
3165 pdim
= &state
.pagedims
[page
->pdimno
];
3169 if (mark
== mark_page
) {
3171 fz_page_block
*pb1
= NULL
, *pb2
= NULL
;
3173 for (i
= 0; i
< page
->text
->len
; ++i
) {
3174 if (page
->text
->blocks
[i
].type
== FZ_PAGE_BLOCK_TEXT
) {
3175 pb1
= &page
->text
->blocks
[i
];
3179 if (!pb1
) goto unlock
;
3181 for (i
= page
->text
->len
- 1; i
>= 0; --i
) {
3182 if (page
->text
->blocks
[i
].type
== FZ_PAGE_BLOCK_TEXT
) {
3183 pb2
= &page
->text
->blocks
[i
];
3187 if (!pb2
) goto unlock
;
3189 block
= pb1
->u
.text
;
3192 page
->fmark
.span
= block
->lines
->first_span
;
3194 block
= pb2
->u
.text
;
3195 line
= &block
->lines
[block
->len
- 1];
3196 page
->lmark
.i
= line
->last_span
->len
- 1;
3197 page
->lmark
.span
= line
->last_span
;
3198 ret_v
= Val_bool (1);
3202 x
+= pdim
->bounds
.x0
;
3203 y
+= pdim
->bounds
.y0
;
3205 for (pageb
= page
->text
->blocks
;
3206 pageb
< page
->text
->blocks
+ page
->text
->len
;
3208 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3209 block
= pageb
->u
.text
;
3212 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3215 if (mark
== mark_block
) {
3217 page
->fmark
.span
= block
->lines
->first_span
;
3219 line
= &block
->lines
[block
->len
- 1];
3220 page
->lmark
.i
= line
->last_span
->len
- 1;
3221 page
->lmark
.span
= line
->last_span
;
3222 ret_v
= Val_bool (1);
3226 for (line
= block
->lines
;
3227 line
< block
->lines
+ block
->len
;
3232 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3235 if (mark
== mark_line
) {
3237 page
->fmark
.span
= line
->first_span
;
3239 page
->lmark
.i
= line
->last_span
->len
- 1;
3240 page
->lmark
.span
= line
->last_span
;
3241 ret_v
= Val_bool (1);
3245 for (span
= line
->first_span
; span
; span
= span
->next
) {
3249 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3252 for (charnum
= 0; charnum
< span
->len
; ++charnum
) {
3254 fz_text_char_bbox (state
.ctx
, &bbox
, span
, charnum
);
3257 if (x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
) {
3259 int charnum2
, charnum3
= -1, charnum4
= -1;
3261 if (uninteresting (span
->text
[charnum
].c
)) goto unlock
;
3263 for (charnum2
= charnum
; charnum2
>= 0; --charnum2
) {
3264 if (uninteresting (span
->text
[charnum2
].c
)) {
3265 charnum3
= charnum2
+ 1;
3269 if (charnum3
== -1) charnum3
= 0;
3271 for (charnum2
= charnum
+ 1;
3272 charnum2
< span
->len
;
3274 if (uninteresting (span
->text
[charnum2
].c
)) break;
3275 charnum4
= charnum2
;
3277 if (charnum4
== -1) goto unlock
;
3279 page
->fmark
.i
= charnum3
;
3280 page
->fmark
.span
= span
;
3282 page
->lmark
.i
= charnum4
;
3283 page
->lmark
.span
= span
;
3284 ret_v
= Val_bool (1);
3292 if (!Bool_val (ret_v
)) {
3293 page
->fmark
.span
= NULL
;
3294 page
->lmark
.span
= NULL
;
3298 unlock ("ml_markunder");
3304 CAMLprim value
ml_rectofblock (value ptr_v
, value x_v
, value y_v
)
3306 CAMLparam3 (ptr_v
, x_v
, y_v
);
3307 CAMLlocal2 (ret_v
, res_v
);
3310 fz_page_block
*pageb
;
3311 struct pagedim
*pdim
;
3312 char *s
= String_val (ptr_v
);
3313 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3315 ret_v
= Val_int (0);
3316 if (trylock ("ml_rectofblock")) {
3320 page
= parse_pointer ("ml_rectofblock", s
);
3321 pdim
= &state
.pagedims
[page
->pdimno
];
3322 x
+= pdim
->bounds
.x0
;
3323 y
+= pdim
->bounds
.y0
;
3327 for (pageb
= page
->text
->blocks
;
3328 pageb
< page
->text
->blocks
+ page
->text
->len
;
3330 switch (pageb
->type
) {
3331 case FZ_PAGE_BLOCK_TEXT
:
3332 b
= &pageb
->u
.text
->bbox
;
3335 case FZ_PAGE_BLOCK_IMAGE
:
3336 b
= &pageb
->u
.image
->bbox
;
3343 if (x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)
3348 res_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3349 ret_v
= caml_alloc_small (1, 1);
3350 Store_double_field (res_v
, 0, b
->x0
);
3351 Store_double_field (res_v
, 1, b
->x1
);
3352 Store_double_field (res_v
, 2, b
->y0
);
3353 Store_double_field (res_v
, 3, b
->y1
);
3354 Field (ret_v
, 0) = res_v
;
3356 unlock ("ml_rectofblock");
3362 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
3364 CAMLparam2 (ptr_v
, rect_v
);
3367 struct pagedim
*pdim
;
3368 char *s
= String_val (ptr_v
);
3369 int i
, x0
, x1
, y0
, y1
, fi
, li
;
3371 fz_page_block
*pageb
;
3372 fz_text_block
*block
;
3373 fz_text_span
*span
, *fspan
, *lspan
;
3375 if (trylock ("ml_seltext")) {
3379 page
= parse_pointer ("ml_seltext", s
);
3382 pdim
= &state
.pagedims
[page
->pdimno
];
3383 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;
3384 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
3385 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
3386 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
3397 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
3398 glColor3ub (128, 128, 128);
3399 recti (x0
, y0
, x1
, y1
);
3400 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
3404 fspan
= page
->fmark
.span
;
3407 lspan
= page
->lmark
.span
;
3409 for (pageb
= page
->text
->blocks
;
3410 pageb
< page
->text
->blocks
+ page
->text
->len
;
3412 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3413 block
= pageb
->u
.text
;
3414 for (line
= block
->lines
;
3415 line
< block
->lines
+ block
->len
;
3418 for (span
= line
->first_span
; span
; span
= span
->next
) {
3419 for (i
= 0; i
< span
->len
; ++i
) {
3422 fz_text_char_bbox (state
.ctx
, &b
, span
, i
);
3424 if (x0
>= b
.x0
&& x0
<= b
.x1
3425 && y0
>= b
.y0
&& y0
<= b
.y1
) {
3430 if (x1
>= b
.x0
&& x1
<= b
.x1
3431 && y1
>= b
.y0
&& y1
<= b
.y1
) {
3436 if (0 && selected
) {
3437 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
3438 glColor3ub (128, 128, 128);
3439 recti (b
.x0
, b
.y0
, b
.x1
, b
.y1
);
3440 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
3446 if (x1
< x0
&& fspan
== lspan
) {
3458 page
->fmark
.span
= fspan
;
3461 page
->lmark
.span
= lspan
;
3463 unlock ("ml_seltext");
3466 CAMLreturn (Val_unit
);
3469 static int UNUSED_ATTR
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
3474 for (i
= a
; i
<= b
; ++i
) {
3475 len
= fz_runetochar (buf
, span
->text
[i
].c
);
3476 ret
= fwrite (buf
, len
, 1, f
);
3479 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
3480 len
, ret
, strerror (errno
));
3488 CAMLprim value
ml_popen (value UNUSED_ATTR u1
, value UNUSED_ATTR u2
)
3490 caml_failwith ("ml_popen not implemented under Cygwin");
3493 CAMLprim value
ml_popen (value command_v
, value fds_v
)
3495 CAMLparam2 (command_v
, fds_v
);
3496 CAMLlocal2 (l_v
, tup_v
);
3500 value earg_v
= Nothing
;
3501 posix_spawnattr_t attr
;
3502 posix_spawn_file_actions_t fa
;
3503 char *argv
[] = { "/bin/sh", "-c", NULL
, NULL
};
3505 argv
[2] = String_val (command_v
);
3507 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
3508 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
3511 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
3512 msg
= "posix_spawnattr_init";
3516 #ifdef POSIX_SPAWN_USEVFORK
3517 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
3518 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
3523 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
3526 tup_v
= Field (l_v
, 0);
3527 fd1
= Int_val (Field (tup_v
, 0));
3528 fd2
= Int_val (Field (tup_v
, 1));
3530 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
3531 msg
= "posix_spawn_file_actions_addclose";
3537 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
3538 msg
= "posix_spawn_file_actions_adddup2";
3545 if ((ret
= posix_spawn (&pid
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
3546 msg
= "posix_spawn";
3551 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
3552 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
3556 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
3557 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
3562 unix_error (ret
, msg
, earg_v
);
3564 CAMLreturn (Val_int (pid
));
3568 CAMLprim value
ml_hassel (value ptr_v
)
3573 char *s
= String_val (ptr_v
);
3575 ret_v
= Val_bool (0);
3576 if (trylock ("ml_hassel")) {
3580 page
= parse_pointer ("ml_hassel", s
);
3581 ret_v
= Val_bool (page
->fmark
.span
&& page
->lmark
.span
);
3582 unlock ("ml_hassel");
3587 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
3589 CAMLparam2 (fd_v
, ptr_v
);
3594 fz_page_block
*pageb
;
3595 fz_text_block
*block
;
3596 int fd
= Int_val (fd_v
);
3597 char *s
= String_val (ptr_v
);
3599 if (trylock ("ml_copysel")) {
3603 page
= parse_pointer ("ml_copysel", s
);
3605 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
3606 fprintf (stderr
, "nothing to copy on page %d\n", page
->pageno
);
3610 f
= fdopen (fd
, "w");
3612 fprintf (stderr
, "failed to fdopen sel pipe (from fd %d): %s\n",
3613 fd
, strerror (errno
));
3617 for (pageb
= page
->text
->blocks
;
3618 pageb
< page
->text
->blocks
+ page
->text
->len
;
3620 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3621 block
= pageb
->u
.text
;
3622 for (line
= block
->lines
;
3623 line
< block
->lines
+ block
->len
;
3627 for (span
= line
->first_span
; span
; span
= span
->next
) {
3630 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
3631 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
3632 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
3635 if (pipespan (f
, span
, a
, b
)) {
3638 if (span
== page
->lmark
.span
) {
3641 if (span
== line
->last_span
) {
3642 if (putc ('\n', f
) == EOF
) {
3644 "failed break line on sel pipe: %s\n",
3655 int ret
= fclose (f
);
3658 if (errno
!= ECHILD
) {
3659 fprintf (stderr
, "failed to close sel pipe: %s\n",
3665 unlock ("ml_copysel");
3670 fprintf (stderr
, "failed to close sel pipe: %s\n",
3674 CAMLreturn (Val_unit
);
3677 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
3679 CAMLparam1 (pagedimno_v
);
3681 int pagedimno
= Int_val (pagedimno_v
);
3684 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3685 if (trylock ("ml_getpdimrect")) {
3686 box
= fz_empty_rect
;
3689 box
= state
.pagedims
[pagedimno
].mediabox
;
3690 unlock ("ml_getpdimrect");
3693 Store_double_field (ret_v
, 0, box
.x0
);
3694 Store_double_field (ret_v
, 1, box
.x1
);
3695 Store_double_field (ret_v
, 2, box
.y0
);
3696 Store_double_field (ret_v
, 3, box
.y1
);
3701 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
3702 value dw_v
, value cols_v
)
3704 CAMLparam4 (winw_v
, winh_v
, dw_v
, cols_v
);
3710 double winw
= Int_val (winw_v
);
3711 double winh
= Int_val (winh_v
);
3712 double dw
= Int_val (dw_v
);
3713 double cols
= Int_val (cols_v
);
3714 double pw
= 1.0, ph
= 1.0;
3716 if (trylock ("ml_zoom_for_height")) {
3720 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3721 double w
= p
->pagebox
.x1
/ cols
;
3722 double h
= p
->pagebox
.y1
;
3726 if (state
.fitmodel
!= FitProportional
) pw
= w
;
3728 if ((state
.fitmodel
== FitProportional
) && w
> pw
) pw
= w
;
3731 zoom
= (((winh
/ ph
) * pw
) + dw
) / winw
;
3732 unlock ("ml_zoom_for_height");
3734 ret_v
= caml_copy_double (zoom
);
3738 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3740 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3742 int pt
= Int_val(pt_v
);
3743 int x
= Int_val (x_v
);
3744 int y
= Int_val (y_v
);
3747 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3748 ret_v
= caml_copy_double (w
);
3752 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3754 CAMLparam2 (pt_v
, string_v
);
3756 int pt
= Int_val (pt_v
);
3759 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3760 ret_v
= caml_copy_double (w
);
3764 CAMLprim value
ml_getpagebox (value opaque_v
)
3766 CAMLparam1 (opaque_v
);
3772 char *s
= String_val (opaque_v
);
3773 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3775 ret_v
= caml_alloc_tuple (4);
3776 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
3777 dev
->hints
|= FZ_IGNORE_SHADE
;
3779 ctm
= pagectm (page
);
3780 fz_run_page (state
.ctx
, page
->fzpage
, dev
, &ctm
, NULL
);
3782 fz_drop_device (state
.ctx
, dev
);
3783 fz_round_rect (&bbox
, &rect
);
3784 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3785 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3786 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3787 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3792 CAMLprim value
ml_setaalevel (value level_v
)
3794 CAMLparam1 (level_v
);
3796 state
.aalevel
= Int_val (level_v
);
3797 CAMLreturn (Val_unit
);
3800 #pragma GCC diagnostic push
3801 #pragma GCC diagnostic ignored "-Wvariadic-macros"
3802 #include <X11/Xlib.h>
3803 #include <X11/cursorfont.h>
3804 #pragma GCC diagnostic pop
3808 static const int shapes
[] = {
3809 XC_arrow
, XC_hand2
, XC_exchange
, XC_fleur
, XC_xterm
3812 #define CURS_COUNT (sizeof (shapes) / sizeof (shapes[0]))
3818 XVisualInfo
*visual
;
3819 Cursor curs
[CURS_COUNT
];
3822 CAMLprim value
ml_glxinit (value display_v
, value wid_v
, value screen_v
)
3824 CAMLparam3 (display_v
, wid_v
, screen_v
);
3825 int attribs
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3827 glx
.dpy
= XOpenDisplay (String_val (display_v
));
3829 caml_failwith ("XOpenDisplay");
3832 glx
.visual
= glXChooseVisual (glx
.dpy
, Int_val (screen_v
), attribs
);
3834 XCloseDisplay (glx
.dpy
);
3835 caml_failwith ("glXChooseVisual");
3838 for (size_t n
= 0; n
< CURS_COUNT
; ++n
) {
3839 glx
.curs
[n
] = XCreateFontCursor (glx
.dpy
, shapes
[n
]);
3842 glx
.wid
= Int_val (wid_v
);
3843 CAMLreturn (Val_int (glx
.visual
->visualid
));
3846 CAMLprim value
ml_glxcompleteinit (value unit_v
)
3848 CAMLparam1 (unit_v
);
3850 glx
.ctx
= glXCreateContext (glx
.dpy
, glx
.visual
, NULL
, True
);
3852 caml_failwith ("glXCreateContext");
3858 if (!glXMakeCurrent (glx
.dpy
, glx
.wid
, glx
.ctx
)) {
3859 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3861 caml_failwith ("glXMakeCurrent");
3863 CAMLreturn (Val_unit
);
3866 CAMLprim value
ml_setcursor (value cursor_v
)
3868 CAMLparam1 (cursor_v
);
3869 size_t cursn
= Int_val (cursor_v
);
3870 XSetWindowAttributes wa
;
3872 if (cursn
>= CURS_COUNT
) caml_failwith ("cursor index out of range");
3873 wa
.cursor
= glx
.curs
[cursn
];
3874 XChangeWindowAttributes (glx
.dpy
, glx
.wid
, CWCursor
, &wa
);
3876 CAMLreturn (Val_unit
);
3879 CAMLprim value
ml_swapb (value unit_v
)
3881 CAMLparam1 (unit_v
);
3882 glXSwapBuffers (glx
.dpy
, glx
.wid
);
3883 CAMLreturn (Val_unit
);
3886 #include "keysym2ucs.c"
3888 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3890 CAMLparam1 (keysym_v
);
3892 KeySym keysym
= Int_val (keysym_v
);
3897 rune
= keysym2ucs (keysym
);
3898 len
= fz_runetochar (buf
, rune
);
3900 str_v
= caml_copy_string (buf
);
3904 enum { piunknown
, pilinux
, piosx
, pisun
, pibsd
, picygwin
};
3906 CAMLprim value
ml_platform (value unit_v
)
3908 CAMLparam1 (unit_v
);
3909 CAMLlocal2 (tup_v
, arr_v
);
3910 int platid
= piunknown
;
3913 #if defined __linux__
3915 #elif defined __CYGWIN__
3917 #elif defined __DragonFly__ || defined __FreeBSD__
3918 || defined __OpenBSD__
|| defined __NetBSD__
3920 #elif defined __sun__
3922 #elif defined __APPLE__
3925 if (uname (&buf
)) err (1, "uname");
3927 tup_v
= caml_alloc_tuple (2);
3929 char const *sar
[] = {
3936 arr_v
= caml_copy_string_array (sar
);
3938 Field (tup_v
, 0) = Val_int (platid
);
3939 Field (tup_v
, 1) = arr_v
;
3943 CAMLprim value
ml_cloexec (value fd_v
)
3946 int fd
= Int_val (fd_v
);
3948 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3949 uerror ("fcntl", Nothing
);
3951 CAMLreturn (Val_unit
);
3954 CAMLprim value
ml_getpbo (value w_v
, value h_v
, value cs_v
)
3956 CAMLparam2 (w_v
, h_v
);
3959 int w
= Int_val (w_v
);
3960 int h
= Int_val (h_v
);
3961 int cs
= Int_val (cs_v
);
3963 if (state
.pbo_usable
) {
3964 pbo
= calloc (sizeof (*pbo
), 1);
3966 err (1, "calloc pbo");
3978 errx (1, "ml_getpbo: invalid colorspace %d", cs
);
3981 state
.glGenBuffersARB (1, &pbo
->id
);
3982 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->id
);
3983 state
.glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->size
,
3984 NULL
, GL_STREAM_DRAW
);
3985 pbo
->ptr
= state
.glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
,
3987 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3989 fprintf (stderr
, "glMapBufferARB failed: %#x\n", glGetError ());
3990 state
.glDeleteBuffersARB (1, &pbo
->id
);
3992 ret_v
= caml_copy_string ("0");
3998 res
= snprintf (NULL
, 0, "%" FMT_ptr
, FMT_ptr_cast (pbo
));
4000 err (1, "snprintf %" FMT_ptr
" failed", FMT_ptr_cast (pbo
));
4004 err (1, "malloc %d bytes failed", res
+1);
4006 res
= sprintf (s
, "%" FMT_ptr
, FMT_ptr_cast (pbo
));
4008 err (1, "sprintf %" FMT_ptr
" failed", FMT_ptr_cast (pbo
));
4010 ret_v
= caml_copy_string (s
);
4015 ret_v
= caml_copy_string ("0");
4020 CAMLprim value
ml_freepbo (value s_v
)
4023 char *s
= String_val (s_v
);
4024 struct tile
*tile
= parse_pointer ("ml_freepbo", s
);
4027 state
.glDeleteBuffersARB (1, &tile
->pbo
->id
);
4029 tile
->pbo
->ptr
= NULL
;
4030 tile
->pbo
->size
= -1;
4032 CAMLreturn (Val_unit
);
4035 CAMLprim value
ml_unmappbo (value s_v
)
4038 char *s
= String_val (s_v
);
4039 struct tile
*tile
= parse_pointer ("ml_unmappbo", s
);
4042 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
4043 if (state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
) == GL_FALSE
) {
4044 errx (1, "glUnmapBufferARB failed: %#x\n", glGetError ());
4046 tile
->pbo
->ptr
= NULL
;
4047 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
4049 CAMLreturn (Val_unit
);
4052 static void setuppbo (void)
4054 #define GGPA(n) (*(void (**) ()) &state.n = glXGetProcAddress ((GLubyte *) #n))
4055 state
.pbo_usable
= GGPA (glBindBufferARB
)
4056 && GGPA (glUnmapBufferARB
)
4057 && GGPA (glMapBufferARB
)
4058 && GGPA (glBufferDataARB
)
4059 && GGPA (glGenBuffersARB
)
4060 && GGPA (glDeleteBuffersARB
);
4064 CAMLprim value
ml_pbo_usable (value unit_v
)
4066 CAMLparam1 (unit_v
);
4067 CAMLreturn (Val_bool (state
.pbo_usable
));
4070 CAMLprim value
ml_unproject (value ptr_v
, value x_v
, value y_v
)
4072 CAMLparam3 (ptr_v
, x_v
, y_v
);
4073 CAMLlocal2 (ret_v
, tup_v
);
4075 char *s
= String_val (ptr_v
);
4076 int x
= Int_val (x_v
), y
= Int_val (y_v
);
4077 struct pagedim
*pdim
;
4081 page
= parse_pointer ("ml_unproject", s
);
4082 pdim
= &state
.pagedims
[page
->pdimno
];
4084 ret_v
= Val_int (0);
4085 if (trylock ("ml_unproject")) {
4089 if (pdf_specifics (state
.ctx
, state
.doc
)) {
4090 trimctm ((pdf_page
*) page
->fzpage
, page
->pdimno
);
4091 ctm
= state
.pagedims
[page
->pdimno
].tctm
;
4096 p
.x
= x
+ pdim
->bounds
.x0
;
4097 p
.y
= y
+ pdim
->bounds
.y0
;
4099 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->ctm
);
4100 fz_invert_matrix (&ctm
, &ctm
);
4101 fz_transform_point (&p
, &ctm
);
4103 tup_v
= caml_alloc_tuple (2);
4104 ret_v
= caml_alloc_small (1, 1);
4105 Field (tup_v
, 0) = Val_int (p
.x
);
4106 Field (tup_v
, 1) = Val_int (p
.y
);
4107 Field (ret_v
, 0) = tup_v
;
4109 unlock ("ml_unproject");
4114 CAMLprim value
ml_addannot (value ptr_v
, value x_v
, value y_v
,
4117 CAMLparam4 (ptr_v
, x_v
, y_v
, contents_v
);
4118 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
4124 char *s
= String_val (ptr_v
);
4126 page
= parse_pointer ("ml_addannot", s
);
4127 annot
= pdf_create_annot (state
.ctx
, pdf
,
4128 (pdf_page
*) page
->fzpage
, FZ_ANNOT_TEXT
);
4129 p
.x
= Int_val (x_v
);
4130 p
.y
= Int_val (y_v
);
4131 pdf_set_annot_contents (state
.ctx
, pdf
, annot
, String_val (contents_v
));
4132 pdf_set_text_annot_position (state
.ctx
, pdf
, annot
, p
);
4135 CAMLreturn (Val_unit
);
4138 CAMLprim value
ml_delannot (value ptr_v
, value n_v
)
4140 CAMLparam2 (ptr_v
, n_v
);
4141 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
4145 char *s
= String_val (ptr_v
);
4146 struct slink
*slink
;
4148 page
= parse_pointer ("ml_delannot", s
);
4149 slink
= &page
->slinks
[Int_val (n_v
)];
4150 pdf_delete_annot (state
.ctx
, pdf
,
4151 (pdf_page
*) page
->fzpage
,
4152 (pdf_annot
*) slink
->u
.annot
);
4155 CAMLreturn (Val_unit
);
4158 CAMLprim value
ml_modannot (value ptr_v
, value n_v
, value str_v
)
4160 CAMLparam3 (ptr_v
, n_v
, str_v
);
4161 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
4165 char *s
= String_val (ptr_v
);
4166 struct slink
*slink
;
4168 page
= parse_pointer ("ml_modannot", s
);
4169 slink
= &page
->slinks
[Int_val (n_v
)];
4170 pdf_set_annot_contents (state
.ctx
, pdf
, (pdf_annot
*) slink
->u
.annot
,
4171 String_val (str_v
));
4174 CAMLreturn (Val_unit
);
4177 CAMLprim value
ml_hasunsavedchanges (value unit_v
)
4179 CAMLparam1 (unit_v
);
4180 CAMLreturn (Val_bool (state
.dirty
));
4183 CAMLprim value
ml_savedoc (value path_v
)
4185 CAMLparam1 (path_v
);
4186 pdf_document
*pdf
= pdf_specifics (state
.ctx
, state
.doc
);
4189 pdf_write_document (state
.ctx
, pdf
, String_val (path_v
), NULL
);
4191 CAMLreturn (Val_unit
);
4194 static void makestippletex (void)
4196 const char pixels
[] = "\xff\xff\0\0";
4197 glGenTextures (1, &state
.stid
);
4198 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
4199 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MIN_FILTER
, GL_LINEAR
);
4200 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
4213 CAMLprim value
ml_fz_version (value UNUSED_ATTR unit_v
)
4215 return caml_copy_string (FZ_VERSION
);
4218 #ifdef USE_FONTCONFIG
4224 static fz_font
*fc_load_system_font_func (fz_context
*ctx
,
4228 int UNUSED_ATTR needs_exact_metrics
)
4235 FcPattern
*pat
, *pat1
;
4237 lprintf ("looking up %s bold:%d italic:%d needs_exact_metrics:%d\n",
4238 name
, bold
, italic
, needs_exact_metrics
);
4241 fc
.config
= FcInitLoadConfigAndFonts ();
4243 lprintf ("FcInitLoadConfigAndFonts failed\n");
4247 if (!fc
.config
) return NULL
;
4249 size
= strlen (name
);
4250 if (bold
) size
+= sizeof (":bold") - 1;
4251 if (italic
) size
+= sizeof (":italic") - 1;
4254 buf
= malloc (size
);
4256 err (1, "malloc %zu failed", size
);
4260 if (bold
&& italic
) {
4261 strcat (buf
, ":bold:italic");
4264 if (bold
) strcat (buf
, ":bold");
4265 if (italic
) strcat (buf
, ":italic");
4267 for (i
= 0; i
< size
; ++i
) {
4268 if (buf
[i
] == ',' || buf
[i
] == '-') buf
[i
] = ':';
4271 lprintf ("fcbuf=%s\n", buf
);
4272 pat
= FcNameParse ((FcChar8
*) buf
);
4274 printd ("emsg FcNameParse failed\n");
4279 if (!FcConfigSubstitute (fc
.config
, pat
, FcMatchPattern
)) {
4280 printd ("emsg FcConfigSubstitute failed\n");
4284 FcDefaultSubstitute (pat
);
4286 pat1
= FcFontMatch (fc
.config
, pat
, &result
);
4288 printd ("emsg FcFontMatch failed\n");
4289 FcPatternDestroy (pat
);
4294 if (FcPatternGetString (pat1
, FC_FILE
, 0, &path
) != FcResultMatch
) {
4295 printd ("emsg FcPatternGetString failed\n");
4296 FcPatternDestroy (pat
);
4297 FcPatternDestroy (pat1
);
4303 printd ("emsg name=%s path=%s\n", name
, path
);
4305 font
= fz_new_font_from_file (ctx
, name
, (char *) path
, 0, 0);
4306 FcPatternDestroy (pat
);
4307 FcPatternDestroy (pat1
);
4313 CAMLprim value
ml_init (value csock_v
, value params_v
)
4315 CAMLparam2 (csock_v
, params_v
);
4316 CAMLlocal2 (trim_v
, fuzz_v
);
4324 state
.csock
= Int_val (csock_v
);
4325 state
.rotate
= Int_val (Field (params_v
, 0));
4326 state
.fitmodel
= Int_val (Field (params_v
, 1));
4327 trim_v
= Field (params_v
, 2);
4328 texcount
= Int_val (Field (params_v
, 3));
4329 state
.sliceheight
= Int_val (Field (params_v
, 4));
4330 mustoresize
= Int_val (Field (params_v
, 5));
4331 colorspace
= Int_val (Field (params_v
, 6));
4332 fontpath
= String_val (Field (params_v
, 7));
4334 if (caml_string_length (Field (params_v
, 8)) > 0) {
4335 state
.trimcachepath
= strdup (String_val (Field (params_v
, 8)));
4337 if (!state
.trimcachepath
) {
4338 fprintf (stderr
, "failed to strdup trimcachepath: %s\n",
4342 haspboext
= Bool_val (Field (params_v
, 9));
4344 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
4345 fz_register_document_handlers (state
.ctx
);
4347 #ifdef USE_FONTCONFIG
4348 if (Bool_val (Field (params_v
, 10))) {
4349 fz_install_load_system_font_funcs (
4350 state
.ctx
, fc_load_system_font_func
, NULL
4355 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
4356 fuzz_v
= Field (trim_v
, 1);
4357 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
4358 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
4359 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
4360 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
4362 set_tex_params (colorspace
);
4365 #ifndef USE_FONTCONFIG
4366 state
.face
= load_font (fontpath
);
4370 char *buf
= fontpath
;
4371 FcPattern
*pat
, *pat1
;
4374 fc
.config
= FcInitLoadConfigAndFonts ();
4376 errx (1, "FcInitLoadConfigAndFonts failed");
4379 pat
= FcNameParse ((FcChar8
*) buf
);
4381 errx (1, "FcNameParse failed");
4384 if (!FcConfigSubstitute (fc
.config
, pat
, FcMatchPattern
)) {
4385 errx (1, "FcConfigSubstitute failed");
4387 FcDefaultSubstitute (pat
);
4389 pat1
= FcFontMatch (fc
.config
, pat
, &result
);
4391 errx (1, "FcFontMatch failed");
4394 if (FcPatternGetString (pat1
, FC_FILE
, 0, &path
) != FcResultMatch
) {
4395 errx (1, "FcPatternGetString failed");
4398 state
.face
= load_font ((char *) path
);
4399 FcPatternDestroy (pat
);
4400 FcPatternDestroy (pat1
);
4405 void *base
= pdf_lookup_substitute_font (state
.ctx
, 0, 0, 0, 0, &len
);
4407 state
.face
= load_builtin_font (base
, len
);
4409 if (!state
.face
) _exit (1);
4411 realloctexts (texcount
);
4419 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
4421 errx (1, "pthread_create: %s", strerror (ret
));
4424 CAMLreturn (Val_unit
);