1 /* lots of code c&p-ed directly from mupdf */
13 #include <sys/types.h>
14 #include <sys/ioctl.h>
17 #include <cygwin/socket.h> /* FIONREAD */
28 #include <caml/fail.h>
29 #include <caml/alloc.h>
30 #include <caml/memory.h>
31 #include <caml/unixsupport.h>
33 #include <mupdf/fitz.h>
34 #include <mupdf/cbz.h>
35 #include <mupdf/pdf.h>
36 #include <mupdf/xps.h>
37 #include <mupdf/img.h>
39 #include FT_FREETYPE_H
42 #include <fontconfig/fontconfig.h>
48 extern char **environ
;
51 #define MIN(a,b) ((a) < (b) ? (a) : (b))
52 #define MAX(a,b) ((a) > (b) ? (a) : (b))
55 #define NORETURN_ATTR __attribute__ ((noreturn))
56 #define UNUSED_ATTR __attribute__ ((unused))
57 #if !defined __clang__
58 #define OPTIMIZE_ATTR(n) __attribute__ ((optimize ("O"#n)))
60 #define OPTIMIZE_ATTR(n)
62 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
66 #define OPTIMIZE_ATTR(n)
67 #define GCC_FMT_ATTR(a, b)
73 #define FMT_ptr_cast(p) (p)
74 #define FMT_ptr_cast2(p) (p)
76 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
77 err (int exitcode
, const char *fmt
, ...)
84 vfprintf (stderr
, fmt
, ap
);
86 fprintf (stderr
, ": %s\n", strerror (savederrno
));
91 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
92 errx (int exitcode
, const char *fmt
, ...)
97 vfprintf (stderr
, fmt
, ap
);
104 #ifndef GL_TEXTURE_RECTANGLE_ARB
105 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
109 #define GL_BGRA 0x80E1
112 #ifndef GL_UNSIGNED_INT_8_8_8_8
113 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
116 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
117 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
121 #define lprintf printf
126 #define ARSERT(cond) for (;;) { \
128 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
144 struct slice slices
[1];
155 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
163 enum { DPDF
, DXPS
, DCBZ
, DIMG
};
172 fz_text_sheet
*sheet
;
180 fz_display_list
*dlist
;
182 struct slink
*slinks
;
187 void (*freepage
) (void *);
193 struct pagedim
*pagedims
;
213 fz_colorspace
*colorspace
;
221 enum { FitWidth
, FitProportional
, FitPage
} fitmodel
;
235 void (*closedoc
) (void);
236 void (*freepage
) (void *);
244 void (*glBindBufferARB
) (GLenum
, GLuint
);
245 GLboolean (*glUnmapBufferARB
) (GLenum
);
246 void *(*glMapBufferARB
) (GLenum
, GLenum
);
247 void (*glBufferDataARB
) (GLenum
, GLsizei
, void *, GLenum
);
248 void (*glGenBuffersARB
) (GLsizei
, GLuint
*);
249 void (*glDeleteBuffersARB
) (GLsizei
, GLuint
*);
251 GLfloat texcoords
[8];
252 GLfloat vertices
[16];
261 static void UNUSED_ATTR
debug_rect (const char *cap
, fz_rect r
)
263 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
266 static void UNUSED_ATTR
debug_bbox (const char *cap
, fz_irect r
)
268 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
271 static void UNUSED_ATTR
debug_matrix (const char *cap
, fz_matrix m
)
273 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
274 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
277 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
279 static void lock (const char *cap
)
281 int ret
= pthread_mutex_lock (&mutex
);
283 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
287 static void unlock (const char *cap
)
289 int ret
= pthread_mutex_unlock (&mutex
);
291 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
295 static int trylock (const char *cap
)
297 int ret
= pthread_mutex_trylock (&mutex
);
298 if (ret
&& ret
!= EBUSY
) {
299 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
304 static void *parse_pointer (const char *cap
, const char *s
)
309 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
311 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
316 static double now (void)
320 if (gettimeofday (&tv
, NULL
)) {
321 err (1, "gettimeofday");
323 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
326 static int hasdata (void)
329 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
330 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
334 CAMLprim value
ml_hasdata (value fd_v
)
339 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
340 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
341 CAMLreturn (Val_bool (avail
> 0));
344 static void readdata (void *p
, int size
)
349 n
= read (state
.cr
, p
, size
);
351 if (errno
== EINTR
) goto again
;
352 err (1, "read (req %d, ret %zd)", size
, n
);
355 if (!n
) errx (1, "EOF while reading");
356 errx (1, "read (req %d, ret %zd)", size
, n
);
360 static void writedata (char *p
, int size
)
364 p
[0] = (size
>> 24) & 0xff;
365 p
[1] = (size
>> 16) & 0xff;
366 p
[2] = (size
>> 8) & 0xff;
367 p
[3] = (size
>> 0) & 0xff;
369 n
= write (state
.cw
, p
, size
+ 4);
371 if (!n
) errx (1, "EOF while writing data");
372 err (1, "write (req %d, ret %zd)", size
+ 4, n
);
376 static int readlen (void)
381 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
384 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
392 if (!buf
) err (1, "malloc for temp buf (%d bytes) failed", size
);
395 len
= vsnprintf (buf
+ 4, size
- 4, fmt
, ap
);
399 if (len
< size
- 4) {
400 writedata (buf
, len
);
406 err (1, "vsnprintf for `%s' failed", fmt
);
408 buf
= realloc (buf
, size
);
413 static void closepdf (void)
416 pdf_close_document (state
.u
.pdf
);
421 static void closexps (void)
424 xps_close_document (state
.u
.xps
);
429 static void closecbz (void)
432 cbz_close_document (state
.u
.cbz
);
437 static void closeimg (void)
440 image_close_document (state
.u
.img
);
445 static void freepdfpage (void *ptr
)
447 pdf_free_page (state
.u
.pdf
, ptr
);
450 static void freeemptyxxxpage (void *ptr
)
455 static void freexpspage (void *ptr
)
457 xps_free_page (state
.u
.xps
, ptr
);
460 static void freecbzpage (void *ptr
)
462 cbz_free_page (state
.u
.cbz
, ptr
);
465 static void freeimgpage (void *ptr
)
467 image_free_page (state
.u
.img
, ptr
);
470 static void openxref (char *filename
, char *password
)
474 for (i
= 0; i
< state
.texcount
; ++i
) {
475 state
.texowners
[i
].w
= -1;
476 state
.texowners
[i
].slice
= NULL
;
479 if (state
.closedoc
) state
.closedoc ();
481 len
= strlen (filename
);
498 for (i
= 0; i
< sizeof (tbl
) / sizeof (*tbl
); ++i
) {
499 int len2
= strlen (tbl
[i
].ext
);
501 if (len2
< len
&& !strcasecmp (tbl
[i
].ext
, filename
+ len
- len2
)) {
502 state
.type
= tbl
[i
].type
;
508 if (state
.pagedims
) {
509 free (state
.pagedims
);
510 state
.pagedims
= NULL
;
512 state
.pagedimcount
= 0;
514 fz_set_aa_level (state
.ctx
, state
.aalevel
);
515 switch (state
.type
) {
517 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
518 if (pdf_needs_password (state
.u
.pdf
)) {
519 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
521 errx (1, "invalid password");
524 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
525 state
.closedoc
= closepdf
;
526 state
.freepage
= freepdfpage
;
530 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
531 state
.pagecount
= xps_count_pages (state
.u
.xps
);
532 state
.closedoc
= closexps
;
533 state
.freepage
= freexpspage
;
537 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
538 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
539 state
.closedoc
= closecbz
;
540 state
.freepage
= freecbzpage
;
544 state
.u
.img
= image_open_document (state
.ctx
, filename
);
546 state
.closedoc
= closeimg
;
547 state
.freepage
= freeimgpage
;
552 static void pdfinfo (void)
554 if (state
.type
== DPDF
) {
557 printd ("info PDF version\t%d.%d",
558 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
560 infoobj
= pdf_dict_gets (pdf_trailer (state
.u
.pdf
), "Info");
564 char *items
[] = { "Title", "Author", "Creator",
565 "Producer", "CreationDate" };
567 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
568 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
569 s
= pdf_to_utf8 (state
.u
.pdf
, obj
);
572 printd ("title %s", s
);
574 printd ("info %s\t%s", items
[i
], s
);
576 fz_free (state
.ctx
, s
);
583 static void unlinktile (struct tile
*tile
)
587 for (i
= 0; i
< tile
->slicecount
; ++i
) {
588 struct slice
*s
= &tile
->slices
[i
];
590 if (s
->texindex
!= -1) {
591 if (state
.texowners
[s
->texindex
].slice
== s
) {
592 state
.texowners
[s
->texindex
].slice
= NULL
;
598 static void freepage (struct page
*page
)
601 fz_free_text_page (state
.ctx
, page
->text
);
604 fz_free_text_sheet (state
.ctx
, page
->sheet
);
609 fz_drop_display_list (state
.ctx
, page
->dlist
);
610 page
->freepage (page
->u
.ptr
);
614 static void freetile (struct tile
*tile
)
619 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
622 fz_drop_pixmap (state
.ctx
, state
.pig
);
624 state
.pig
= tile
->pixmap
;
629 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
638 static int cacheline32bytes
;
640 static void __attribute__ ((constructor
)) clcheck (void)
642 char **envp
= environ
;
647 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
649 cacheline32bytes
= auxv
[1] == 32;
655 static void OPTIMIZE_ATTR (3) clearpixmap (fz_pixmap
*pixmap
)
657 size_t size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
658 if (cacheline32bytes
&& size
> 32) {
659 intptr_t a1
, a2
, diff
;
661 vector
unsigned char v
= vec_splat_u8 (-1);
662 vector
unsigned char *p
;
664 a1
= a2
= (intptr_t) pixmap
->samples
;
665 a2
= (a1
+ 31) & ~31;
670 while (a1
!= a2
) *(char *) a1
++ = 0xff;
671 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
672 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
674 vec_st (v
, i
+ 16, p
);
676 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
678 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
681 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
684 static void trimctm (pdf_page
*page
, int pindex
)
687 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
689 if (!pdim
->tctmready
) {
690 if (state
.trimmargins
) {
692 fz_matrix rm
, sm
, tm
, im
, ctm1
;
694 fz_rotate (&rm
, -pdim
->rotate
);
695 fz_scale (&sm
, 1, -1);
696 fz_concat (&ctm
, &rm
, &sm
);
697 realbox
= pdim
->mediabox
;
698 fz_transform_rect (&realbox
, &ctm
);
699 fz_translate (&tm
, -realbox
.x0
, -realbox
.y0
);
700 fz_concat (&ctm1
, &ctm
, &tm
);
701 fz_invert_matrix (&im
, &page
->ctm
);
702 fz_concat (&ctm
, &im
, &ctm1
);
712 static fz_matrix
pagectm (struct page
*page
)
716 if (page
->type
== DPDF
) {
717 trimctm (page
->u
.pdfpage
, page
->pdimno
);
719 &state
.pagedims
[page
->pdimno
].tctm
,
720 &state
.pagedims
[page
->pdimno
].ctm
);
723 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
725 fz_translate (&tm
, -pdim
->mediabox
.x0
, -pdim
->mediabox
.y0
);
726 fz_concat (&ctm
, &tm
, &state
.pagedims
[page
->pdimno
].ctm
);
731 static void *loadpage (int pageno
, int pindex
)
736 page
= calloc (sizeof (struct page
), 1);
738 err (1, "calloc page %d", pageno
);
741 page
->dlist
= fz_new_display_list (state
.ctx
);
742 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
744 switch (state
.type
) {
746 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
747 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
,
749 page
->freepage
= freepdfpage
;
753 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
754 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
,
756 page
->freepage
= freexpspage
;
760 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
761 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
,
763 page
->freepage
= freecbzpage
;
767 page
->u
.imgpage
= image_load_page (state
.u
.img
, pageno
);
768 image_run_page (state
.u
.img
, page
->u
.imgpage
, dev
,
770 page
->freepage
= freeimgpage
;
774 fz_catch (state
.ctx
) {
776 page
->freepage
= freeemptyxxxpage
;
778 fz_free_device (dev
);
780 page
->pdimno
= pindex
;
781 page
->pageno
= pageno
;
782 page
->sgen
= state
.gen
;
783 page
->tgen
= state
.gen
;
784 page
->type
= state
.type
;
789 static struct tile
*alloctile (int h
)
796 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
797 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
798 tile
= calloc (tilesize
, 1);
800 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
802 for (i
= 0; i
< slicecount
; ++i
) {
803 int sh
= MIN (h
, state
.sliceheight
);
804 tile
->slices
[i
].h
= sh
;
805 tile
->slices
[i
].texindex
= -1;
808 tile
->slicecount
= slicecount
;
809 tile
->sliceheight
= state
.sliceheight
;
819 static void obs_fill_image (fz_device
*dev
, fz_image
*image
,
820 const fz_matrix
*ctm
, float alpha
)
822 struct obs
*obs
= dev
->user
;
824 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
826 fz_rect rect
= fz_unit_rect
;
828 fz_transform_rect (&rect
, ctm
);
829 fz_round_rect (&b
, &rect
);
830 fz_intersect_irect (&b
, &obs
->b
);
831 obs
->cured
= b
.x0
== obs
->b
.x0
834 && b
.y1
== obs
->b
.y1
;
838 static int obscured (struct page
*page
, fz_irect bbox
)
845 memset (&dev
, 0, sizeof (dev
));
846 memset (&obs
, 0, sizeof (obs
));
851 dev
.fill_image
= obs_fill_image
;
853 fz_rect_from_irect (&rect
, &bbox
);
854 ctm
= pagectm (page
);
855 fz_run_display_list (page
->dlist
, &dev
, &ctm
, &rect
, NULL
);
858 #define OBSCURED obscured
860 #define OBSCURED(a, b) 0
863 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
,
871 struct pagedim
*pdim
;
873 tile
= alloctile (h
);
874 pdim
= &state
.pagedims
[page
->pdimno
];
879 bbox
.x1
= bbox
.x0
+ w
;
880 bbox
.y1
= bbox
.y0
+ h
;
883 if (state
.pig
->w
== w
885 && state
.pig
->colorspace
== state
.colorspace
) {
886 tile
->pixmap
= state
.pig
;
887 tile
->pixmap
->x
= bbox
.x0
;
888 tile
->pixmap
->y
= bbox
.y0
;
891 fz_drop_pixmap (state
.ctx
, state
.pig
);
898 fz_new_pixmap_with_bbox_and_data (state
.ctx
, state
.colorspace
,
904 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, &bbox
);
910 if (!page
->u
.ptr
|| ((w
< 128 && h
< 128) || !OBSCURED (page
, bbox
))) {
911 clearpixmap (tile
->pixmap
);
913 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
914 ctm
= pagectm (page
);
915 fz_rect_from_irect (&rect
, &bbox
);
916 fz_run_display_list (page
->dlist
, dev
, &ctm
, &rect
, NULL
);
917 fz_free_device (dev
);
922 static void initpdims (void)
926 fz_rect rootmediabox
;
927 int pageno
, trim
, show
;
928 int trimw
= 0, cxcount
;
932 if (state
.trimmargins
&& state
.trimcachepath
) {
933 trimf
= fopen (state
.trimcachepath
, "rb");
935 trimf
= fopen (state
.trimcachepath
, "wb");
940 if (state
.trimmargins
|| state
.type
== DPDF
|| !state
.cxack
)
941 cxcount
= state
.pagecount
;
943 cxcount
= MIN (state
.pagecount
, 1);
945 if (state
.type
== DPDF
) {
947 obj
= pdf_dict_getp (pdf_trailer (state
.u
.pdf
),
948 "Root/Pages/MediaBox");
949 pdf_to_rect (state
.ctx
, obj
, &rootmediabox
);
952 for (pageno
= 0; pageno
< cxcount
; ++pageno
) {
957 switch (state
.type
) {
959 pdf_document
*pdf
= state
.u
.pdf
;
960 pdf_obj
*pageref
= pdf_lookup_page_obj (pdf
, pageno
);
961 pdf_obj
*pageobj
= pdf_resolve_indirect (pageref
);
963 if (state
.trimmargins
) {
968 page
= pdf_load_page (pdf
, pageno
);
969 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
970 trim
= state
.trimanew
|| !obj
;
976 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
977 dev
->hints
|= FZ_IGNORE_SHADE
;
978 fz_invert_matrix (&ctm
, &page
->ctm
);
979 pdf_run_page (pdf
, page
, dev
, &fz_identity
, NULL
);
980 fz_free_device (dev
);
982 rect
.x0
+= state
.trimfuzz
.x0
;
983 rect
.x1
+= state
.trimfuzz
.x1
;
984 rect
.y0
+= state
.trimfuzz
.y0
;
985 rect
.y1
+= state
.trimfuzz
.y1
;
986 fz_transform_rect (&rect
, &ctm
);
987 fz_intersect_rect (&rect
, &page
->mediabox
);
989 if (fz_is_empty_rect (&rect
)) {
990 mediabox
= page
->mediabox
;
996 obj
= pdf_new_array (pdf
, 4);
997 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.x0
));
998 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.y0
));
999 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.x1
));
1000 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.y1
));
1001 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
1004 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
1005 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
1006 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
1007 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
1010 rotate
= page
->rotate
;
1011 pdf_free_page (pdf
, page
);
1013 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
1015 printd ("progress %f Trimming %d",
1016 (double) (pageno
+ 1) / state
.pagecount
,
1020 fz_catch (state
.ctx
) {
1021 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1028 pdf_to_rect (state
.ctx
, pdf_dict_gets (pageobj
, "MediaBox"),
1030 if (fz_is_empty_rect (&mediabox
)) {
1038 pdf_to_rect (state
.ctx
, pdf_dict_gets (pageobj
, "CropBox"),
1040 if (!fz_is_empty_rect (&cropbox
)) {
1045 fz_intersect_rect (&mediabox
, &cropbox
);
1050 if (fz_is_empty_rect (&rootmediabox
)) {
1052 "cannot find page size for page %d\n",
1056 mediabox
= rootmediabox
;
1060 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
1069 fz_try (state
.ctx
) {
1070 page
= xps_load_page (state
.u
.xps
, pageno
);
1071 xps_bound_page (state
.u
.xps
, page
, &mediabox
);
1073 if (state
.trimmargins
) {
1077 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
1078 dev
->hints
|= FZ_IGNORE_SHADE
;
1079 xps_run_page (state
.u
.xps
, page
, dev
,
1080 &fz_identity
, NULL
);
1081 fz_free_device (dev
);
1083 rect
.x0
+= state
.trimfuzz
.x0
;
1084 rect
.x1
+= state
.trimfuzz
.x1
;
1085 rect
.y0
+= state
.trimfuzz
.y0
;
1086 rect
.y1
+= state
.trimfuzz
.y1
;
1087 fz_intersect_rect (&rect
, &mediabox
);
1089 if (!fz_is_empty_rect (&rect
)) {
1093 xps_free_page (state
.u
.xps
, page
);
1095 printd ("progress %f loading %d",
1096 (double) (pageno
+ 1) / state
.pagecount
,
1100 fz_catch (state
.ctx
) {
1112 if (state
.trimmargins
&& trimw
) {
1115 fz_try (state
.ctx
) {
1116 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1117 cbz_bound_page (state
.u
.cbz
, page
, &mediabox
);
1118 cbz_free_page (state
.u
.cbz
, page
);
1119 printd ("progress %f Trimming %d",
1120 (double) (pageno
+ 1) / state
.pagecount
,
1123 fz_catch (state
.ctx
) {
1124 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1127 int n
= fwrite (&mediabox
, sizeof (mediabox
), 1, trimf
);
1129 err (1, "fwrite trim mediabox");
1135 int n
= fread (&mediabox
, sizeof (mediabox
), 1, trimf
);
1137 err (1, "fread trim mediabox");
1143 fz_try (state
.ctx
) {
1144 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1145 cbz_bound_page (state
.u
.cbz
, page
, &mediabox
);
1146 cbz_free_page (state
.u
.cbz
, page
);
1148 fz_catch (state
.ctx
) {
1149 fprintf (stderr
, "failed to load cbz page\n");
1167 fz_try (state
.ctx
) {
1168 page
= image_load_page (state
.u
.img
, pageno
);
1169 image_bound_page (state
.u
.img
, page
, &mediabox
);
1170 image_free_page (state
.u
.img
, page
);
1172 fz_catch (state
.ctx
) {
1173 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1179 ARSERT (0 && state
.type
);
1182 if (state
.pagedimcount
== 0
1183 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
1184 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
1187 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
1188 state
.pagedims
= realloc (state
.pagedims
, size
);
1189 if (!state
.pagedims
) {
1190 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
1191 size
, state
.pagedimcount
+ 1);
1194 p
= &state
.pagedims
[state
.pagedimcount
++];
1196 p
->mediabox
= mediabox
;
1201 if (state
.trimmargins
) {
1202 printd ("progress 1 Trimmed %d pages in %f seconds",
1203 state
.pagecount
, end
- start
);
1206 printd ("vmsg Processed %d pages in %f seconds",
1207 state
.pagecount
, end
- start
);
1211 if (fclose (trimf
)) {
1217 static void layout (void)
1222 struct pagedim
*p
= p
;
1223 double zw
, w
, maxw
= 0.0, zoom
= zoom
;
1225 if (state
.pagedimcount
== 0) return;
1227 switch (state
.fitmodel
) {
1228 case FitProportional
:
1229 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
) {
1232 p
= &state
.pagedims
[pindex
];
1233 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1235 fz_transform_rect (&box
, &rm
);
1237 x0
= MIN (box
.x0
, box
.x1
);
1238 x1
= MAX (box
.x0
, box
.x1
);
1241 maxw
= MAX (w
, maxw
);
1242 zoom
= state
.w
/ maxw
;
1254 ARSERT (0 && state
.fitmodel
);
1257 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
) {
1261 p
= &state
.pagedims
[pindex
];
1262 fz_rotate (&ctm
, state
.rotate
);
1263 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1265 fz_transform_rect (&box
, &rm
);
1266 w
= box
.x1
- box
.x0
;
1267 switch (state
.fitmodel
) {
1268 case FitProportional
:
1269 p
->left
= ((maxw
- w
) * zoom
) / 2.0;
1275 h
= box
.y1
- box
.y0
;
1277 zoom
= MIN (zw
, zh
);
1278 p
->left
= (maxw
- (w
* zoom
)) / 2.0;
1287 fz_scale (&p
->zoomctm
, zoom
, zoom
);
1288 fz_concat (&ctm
, &p
->zoomctm
, &ctm
);
1290 fz_rotate (&rm
, p
->rotate
);
1291 p
->pagebox
= p
->mediabox
;
1292 fz_transform_rect (&p
->pagebox
, &rm
);
1293 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1294 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1298 fz_transform_rect (&rect
, &ctm
);
1299 fz_round_rect (&p
->bounds
, &rect
);
1302 fz_translate (&tm
, 0, -p
->mediabox
.y1
);
1303 fz_scale (&sm
, zoom
, -zoom
);
1304 fz_concat (&ctm
, &tm
, &sm
);
1305 fz_concat (&p
->lctm
, &ctm
, &rm
);
1311 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1312 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1313 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1314 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1318 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1319 } while (p
-- != state
.pagedims
);
1323 struct anchor
{ int n
; int x
; int y
; int w
; int h
; }
1324 desttoanchor (fz_link_dest
*dest
)
1328 struct pagedim
*pdim
= state
.pagedims
;
1333 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1334 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1336 pdim
= &state
.pagedims
[i
];
1338 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1340 if (dest
->ld
.gotor
.flags
& fz_link_flag_l_valid
)
1341 p
.x
= dest
->ld
.gotor
.lt
.x
;
1344 p
.y
= dest
->ld
.gotor
.lt
.y
;
1345 fz_transform_point (&p
, &pdim
->lctm
);
1349 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1350 double x0
, x1
, y0
, y1
;
1352 x0
= MIN (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1353 x1
= MAX (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1355 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1356 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1358 a
.n
= dest
->ld
.gotor
.page
;
1363 static void recurse_outline (fz_outline
*outline
, int level
)
1366 switch (outline
->dest
.kind
) {
1369 struct anchor a
= desttoanchor (&outline
->dest
);
1372 printd ("o %d %d %d %d %s",
1373 level
, a
.n
, a
.y
, a
.h
, outline
->title
);
1379 printd ("ou %d %" FMT_s
" %s %s", level
,
1380 strlen (outline
->title
), outline
->title
,
1381 outline
->dest
.ld
.uri
.uri
);
1385 printd ("on %d %s", level
, outline
->title
);
1389 printd ("emsg Unhandled outline kind %d for %s\n",
1390 outline
->dest
.kind
, outline
->title
);
1393 if (outline
->down
) {
1394 recurse_outline (outline
->down
, level
+ 1);
1396 outline
= outline
->next
;
1400 static void process_outline (void)
1402 fz_outline
*outline
;
1404 if (!state
.needoutline
) return;
1406 state
.needoutline
= 0;
1407 switch (state
.type
) {
1409 outline
= pdf_load_outline (state
.u
.pdf
);
1412 outline
= xps_load_outline (state
.u
.xps
);
1419 recurse_outline (outline
, 0);
1420 fz_free_outline (state
.ctx
, outline
);
1424 static char *strofspan (fz_text_span
*span
)
1429 size_t size
= 0, cap
= 80;
1431 p
= malloc (cap
+ 1);
1432 if (!p
) return NULL
;
1434 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1435 int n
= fz_runetochar (utf8
, ch
->c
);
1436 if (size
+ n
> cap
) {
1438 p
= realloc (p
, cap
+ 1);
1439 if (!p
) return NULL
;
1442 memcpy (p
+ size
, utf8
, n
);
1449 static int matchspan (regex_t
*re
, fz_text_page
*page
,
1450 fz_text_span
*span
, fz_matrix ctm
,
1451 int stop
, int pageno
, double start
)
1458 fz_point p1
, p2
, p3
, p4
;
1460 p
= strofspan (span
);
1463 ret
= regexec (re
, p
, 1, &rm
, 0);
1466 if (ret
!= REG_NOMATCH
) {
1469 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1470 printd ("msg regexec error `%.*s'",
1471 (int) size
, errbuf
);
1479 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1480 c
+= fz_runelen (span
->text
[a
].c
);
1482 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1483 c
+= fz_runelen (span
->text
[b
].c
);
1486 if (fz_runelen (span
->text
[b
].c
) > 1) {
1490 fz_text_char_bbox (&sb
, span
, a
);
1491 fz_text_char_bbox (&eb
, span
, b
);
1503 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1510 printd ("progress 1 found at %d `%.*s' in %f sec",
1511 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1515 printd ("match %d %d %f %f %f %f %f %f %f %f",
1527 static int compareblocks (const void *l
, const void *r
)
1529 fz_text_block
const *ls
= l
;
1530 fz_text_block
const* rs
= r
;
1531 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1534 /* wishful thinking function */
1535 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1540 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1542 fz_text_sheet
*sheet
;
1543 struct pagedim
*pdim
, *pdimprev
;
1544 int stop
= 0, niters
= 0;
1547 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1551 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1552 if (niters
++ == 5) {
1555 printd ("progress 1 attention requested aborting search at %d",
1560 printd ("progress %f searching in page %d",
1561 (double) (pageno
+ 1) / state
.pagecount
,
1566 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1567 pdim
= &state
.pagedims
[i
];
1568 if (pdim
->pageno
== pageno
) {
1571 if (pdim
->pageno
> pageno
) {
1580 sheet
= fz_new_text_sheet (state
.ctx
);
1581 text
= fz_new_text_page (state
.ctx
);
1582 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1584 switch (state
.type
) {
1587 fz_try (state
.ctx
) {
1588 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1589 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1590 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->zoomctm
);
1591 fz_begin_page (tdev
, &fz_infinite_rect
, &ctm
);
1592 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, &ctm
, NULL
);
1595 fz_catch (state
.ctx
) {
1596 fz_free_device (tdev
);
1603 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1604 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, &pdim
->ctm
, NULL
);
1608 ARSERT (0 && state
.type
);
1611 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1612 fz_free_device (tdev
);
1614 for (j
= 0; j
< text
->len
; ++j
) {
1617 fz_text_block
*block
;
1619 pb
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1620 if (pb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
1623 for (k
= 0; k
< block
->len
; ++k
) {
1628 line
= &block
->lines
[k
];
1629 if (line
->bbox
.y0
< y
+ 1) continue;
1632 line
= &block
->lines
[block
->len
- 1 - k
];
1633 if (line
->bbox
.y0
> y
- 1) continue;
1636 for (span
= line
->first_span
; span
; span
= span
->next
) {
1637 switch (matchspan (re
, text
, span
, ctm
,
1638 stop
, pageno
, start
)) {
1640 case 1: stop
= 1; break;
1641 case -1: stop
= 1; goto endloop
;
1656 fz_free_text_page (state
.ctx
, text
);
1657 fz_free_text_sheet (state
.ctx
, sheet
);
1659 state
.freepage (u
.ptr
);
1664 printd ("progress 1 no matches %f sec", end
- start
);
1666 printd ("clearrects");
1669 static void set_tex_params (int colorspace
)
1676 switch (colorspace
) {
1678 state
.texiform
= GL_RGBA8
;
1679 state
.texform
= GL_RGBA
;
1680 state
.texty
= GL_UNSIGNED_BYTE
;
1681 state
.colorspace
= fz_device_rgb (state
.ctx
);
1684 state
.texiform
= GL_RGBA8
;
1685 state
.texform
= GL_BGRA
;
1686 state
.texty
= endianness
.s
> 1
1687 ? GL_UNSIGNED_INT_8_8_8_8
1688 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1689 state
.colorspace
= fz_device_bgr (state
.ctx
);
1692 state
.texiform
= GL_LUMINANCE_ALPHA
;
1693 state
.texform
= GL_LUMINANCE_ALPHA
;
1694 state
.texty
= GL_UNSIGNED_BYTE
;
1695 state
.colorspace
= fz_device_gray (state
.ctx
);
1698 errx (1, "invalid colorspce %d", colorspace
);
1702 static void realloctexts (int texcount
)
1706 if (texcount
== state
.texcount
) return;
1708 if (texcount
< state
.texcount
) {
1709 glDeleteTextures (state
.texcount
- texcount
,
1710 state
.texids
+ texcount
);
1713 size
= texcount
* sizeof (*state
.texids
);
1714 state
.texids
= realloc (state
.texids
, size
);
1715 if (!state
.texids
) {
1716 err (1, "realloc texids %" FMT_s
, size
);
1719 size
= texcount
* sizeof (*state
.texowners
);
1720 state
.texowners
= realloc (state
.texowners
, size
);
1721 if (!state
.texowners
) {
1722 err (1, "realloc texowners %" FMT_s
, size
);
1724 if (texcount
> state
.texcount
) {
1727 glGenTextures (texcount
- state
.texcount
,
1728 state
.texids
+ state
.texcount
);
1729 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1730 state
.texowners
[i
].w
= -1;
1731 state
.texowners
[i
].slice
= NULL
;
1734 state
.texcount
= texcount
;
1738 static char *mbtoutf8 (char *s
)
1744 len
= mbstowcs (NULL
, s
, strlen (s
));
1749 if (len
== (size_t) -1) {
1754 tmp
= malloc (len
* sizeof (wchar_t));
1759 ret
= mbstowcs (tmp
, s
, len
);
1760 if (ret
== (size_t) -1) {
1766 for (i
= 0; i
< ret
; ++i
) {
1767 len
+= fz_runelen (tmp
[i
]);
1770 p
= r
= malloc (len
+ 1);
1776 for (i
= 0; i
< ret
; ++i
) {
1777 p
+= fz_runetochar (p
, tmp
[i
]);
1784 CAMLprim value
ml_mbtoutf8 (value s_v
)
1790 s
= String_val (s_v
);
1796 ret_v
= caml_copy_string (r
);
1802 static void * mainloop (void *unused
)
1805 int len
, ret
, oldlen
= 0;
1810 errx (1, "readlen returned 0");
1813 if (oldlen
< len
+ 1) {
1814 p
= realloc (p
, len
+ 1);
1816 err (1, "realloc %d failed", len
+ 1);
1823 if (!strncmp ("open", p
, 4)) {
1824 int wthack
, off
, ok
= 0;
1830 ret
= sscanf (p
+ 5, " %d %d %n", &wthack
, &state
.cxack
, &off
);
1832 errx (1, "malformed open `%.*s' ret=%d", len
, p
, ret
);
1835 filename
= p
+ 5 + off
;
1836 filenamelen
= strlen (filename
);
1837 password
= filename
+ filenamelen
+ 1;
1840 fz_try (state
.ctx
) {
1841 openxref (filename
, password
);
1844 fz_catch (state
.ctx
) {
1845 utf8filename
= mbtoutf8 (filename
);
1846 printd ("msg Could not open %s", utf8filename
);
1856 utf8filename
= mbtoutf8 (filename
);
1857 printd ("msg Opened %s (press h/F1 to get help)", utf8filename
);
1858 if (utf8filename
!= filename
) {
1859 free (utf8filename
);
1862 state
.needoutline
= 1;
1865 else if (!strncmp ("cs", p
, 2)) {
1868 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1870 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1873 set_tex_params (colorspace
);
1874 for (i
= 0; i
< state
.texcount
; ++i
) {
1875 state
.texowners
[i
].w
= -1;
1876 state
.texowners
[i
].slice
= NULL
;
1880 else if (!strncmp ("freepage", p
, 8)) {
1883 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1885 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1889 else if (!strncmp ("freetile", p
, 8)) {
1892 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1894 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1898 else if (!strncmp ("search", p
, 6)) {
1899 int icase
, pageno
, y
, ret
, len2
, forward
;
1903 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1904 &icase
, &pageno
, &y
, &forward
, &len2
);
1906 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1909 pattern
= p
+ 6 + len2
;
1910 ret
= regcomp (&re
, pattern
,
1911 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1916 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1917 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1920 search (&re
, pageno
, y
, forward
);
1924 else if (!strncmp ("geometry", p
, 8)) {
1928 ret
= sscanf (p
+ 8, " %d %d %d", &w
, &h
, &fitmodel
);
1930 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1938 for (i
= 0; i
< state
.texcount
; ++i
) {
1939 state
.texowners
[i
].slice
= NULL
;
1942 state
.fitmodel
= fitmodel
;
1947 unlock ("geometry");
1948 printd ("continue %d", state
.pagecount
);
1950 else if (!strncmp ("reqlayout", p
, 9)) {
1952 int rotate
, fitmodel
, off
, h
;
1955 ret
= sscanf (p
+ 9, " %d %d %d %n",
1956 &rotate
, &fitmodel
, &h
, &off
);
1958 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1961 if (state
.rotate
!= rotate
|| state
.fitmodel
!= fitmodel
) {
1964 state
.rotate
= rotate
;
1965 state
.fitmodel
= fitmodel
;
1970 nameddest
= p
+ 9 + off
;
1971 if (state
.type
== DPDF
&& nameddest
&& *nameddest
) {
1974 pdf_obj
*needle
, *obj
;
1976 needle
= pdf_new_string (state
.u
.pdf
, nameddest
,
1977 strlen (nameddest
));
1978 obj
= pdf_lookup_dest (state
.u
.pdf
, needle
);
1980 dest
= pdf_parse_link_dest (state
.u
.pdf
, FZ_LINK_GOTO
, obj
);
1982 a
= desttoanchor (&dest
);
1984 printd ("a %d %d %d", a
.n
, a
.x
, a
.y
);
1987 printd ("emsg failed to parse destination `%s'\n",
1992 printd ("emsg destination `%s' not found\n",
1995 pdf_drop_obj (needle
);
1999 unlock ("reqlayout");
2000 printd ("continue %d", state
.pagecount
);
2002 else if (!strncmp ("page", p
, 4)) {
2005 int pageno
, pindex
, ret
;
2007 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
2009 errx (1, "bad page line `%.*s' ret=%d", len
, p
, ret
);
2014 page
= loadpage (pageno
, pindex
);
2018 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
2020 else if (!strncmp ("tile", p
, 4)) {
2021 int x
, y
, w
, h
, ret
;
2027 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d %" FMT_ptr
,
2028 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
, &data
);
2030 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
2035 tile
= rendertile (page
, x
, y
, w
, h
, data
);
2039 printd ("tile %d %d %" FMT_ptr
" %u %f",
2041 FMT_ptr_cast2 (tile
),
2042 tile
->w
* tile
->h
* tile
->pixmap
->n
,
2045 else if (!strncmp ("settrim", p
, 7)) {
2049 ret
= sscanf (p
+ 7, " %d %d %d %d %d",
2050 &trimmargins
, &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
2052 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
2056 state
.trimmargins
= trimmargins
;
2057 state
.needoutline
= 1;
2058 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
2060 state
.trimfuzz
= fuzz
;
2062 state
.pagedimcount
= 0;
2063 free (state
.pagedims
);
2064 state
.pagedims
= NULL
;
2069 printd ("continue %d", state
.pagecount
);
2071 else if (!strncmp ("sliceh", p
, 6)) {
2074 ret
= sscanf (p
+ 6, " %d", &h
);
2076 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
2078 if (h
!= state
.sliceheight
) {
2081 state
.sliceheight
= h
;
2082 for (i
= 0; i
< state
.texcount
; ++i
) {
2083 state
.texowners
[i
].w
= -1;
2084 state
.texowners
[i
].h
= -1;
2085 state
.texowners
[i
].slice
= NULL
;
2089 else if (!strncmp ("interrupt", p
, 9)) {
2090 printd ("vmsg interrupted");
2093 errx (1, "unknown command %.*s", len
, p
);
2099 CAMLprim value
ml_realloctexts (value texcount_v
)
2101 CAMLparam1 (texcount_v
);
2104 if (trylock ("ml_realloctexts")) {
2108 realloctexts (Int_val (texcount_v
));
2110 unlock ("ml_realloctexts");
2113 CAMLreturn (Val_bool (ok
));
2116 static void recti (int x0
, int y0
, int x1
, int y1
)
2118 GLfloat
*v
= state
.vertices
;
2120 glVertexPointer (2, GL_FLOAT
, 0, v
);
2121 v
[0] = x0
; v
[1] = y0
;
2122 v
[2] = x1
; v
[3] = y0
;
2123 v
[4] = x0
; v
[5] = y1
;
2124 v
[6] = x1
; v
[7] = y1
;
2125 glDrawArrays (GL_TRIANGLE_STRIP
, 0, 4);
2128 static void showsel (struct page
*page
, int ox
, int oy
)
2134 fz_page_block
*pageb
;
2135 fz_text_block
*block
;
2136 struct mark first
, last
;
2137 unsigned char selcolor
[] = {15,15,15,140};
2139 first
= page
->fmark
;
2142 if (!first
.span
|| !last
.span
) return;
2144 glEnable (GL_BLEND
);
2145 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
2146 glColor4ubv (selcolor
);
2148 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2149 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2150 for (pageb
= page
->text
->blocks
;
2151 pageb
< page
->text
->blocks
+ page
->text
->len
;
2153 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
2154 block
= pageb
->u
.text
;
2156 for (line
= block
->lines
;
2157 line
< block
->lines
+ block
->len
;
2160 rect
= fz_empty_rect
;
2162 for (span
= line
->first_span
; span
; span
= span
->next
) {
2164 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
2169 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
2171 j
= MIN (first
.i
, last
.i
);
2172 k
= MAX (first
.i
, last
.i
);
2175 if (span
== first
.span
) {
2179 else if (span
== last
.span
) {
2186 for (i
= j
; i
<= k
; ++i
) {
2188 fz_union_rect (&rect
,
2189 fz_text_char_bbox (&bbox
, span
, i
));
2191 fz_round_rect (&bbox
, &rect
);
2192 lprintf ("%d %d %d %d oy=%d ox=%d\n",
2199 recti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
2200 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
2201 if (span
== last
.span
) {
2204 rect
= fz_empty_rect
;
2210 glDisable (GL_BLEND
);
2215 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
2217 fz_matrix ctm
, tm
, pm
;
2218 fz_link
*link
, *links
;
2219 GLfloat
*texcoords
= state
.texcoords
;
2220 GLfloat
*vertices
= state
.vertices
;
2222 switch (page
->type
) {
2224 links
= page
->u
.pdfpage
->links
;
2228 links
= page
->u
.xpspage
->links
;
2235 glEnable (GL_TEXTURE_1D
);
2236 glEnable (GL_BLEND
);
2237 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2238 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
2240 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2241 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2242 fz_translate (&tm
, xoff
, yoff
);
2243 pm
= pagectm (page
);
2244 fz_concat (&ctm
, &pm
, &tm
);
2246 glTexCoordPointer (1, GL_FLOAT
, 0, texcoords
);
2247 glVertexPointer (2, GL_FLOAT
, 0, vertices
);
2249 for (link
= links
; link
; link
= link
->next
) {
2250 fz_point p1
, p2
, p3
, p4
;
2252 p1
.x
= link
->rect
.x0
;
2253 p1
.y
= link
->rect
.y0
;
2255 p2
.x
= link
->rect
.x1
;
2256 p2
.y
= link
->rect
.y0
;
2258 p3
.x
= link
->rect
.x1
;
2259 p3
.y
= link
->rect
.y1
;
2261 p4
.x
= link
->rect
.x0
;
2262 p4
.y
= link
->rect
.y1
;
2264 fz_transform_point (&p1
, &ctm
);
2265 fz_transform_point (&p2
, &ctm
);
2266 fz_transform_point (&p3
, &ctm
);
2267 fz_transform_point (&p4
, &ctm
);
2269 switch (link
->dest
.kind
) {
2270 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
2271 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
2272 case FZ_LINK_LAUNCH
: glColor3ub (0, 255, 0); break;
2273 default: glColor3ub (0, 0, 0); break;
2281 t
= sqrtf (w
*w
+ h
*h
) * .25f
;
2285 s
= sqrtf (w
*w
+ h
*h
) * .25f
;
2287 texcoords
[0] = 0; vertices
[0] = p1
.x
; vertices
[1] = p1
.y
;
2288 texcoords
[1] = t
; vertices
[2] = p2
.x
; vertices
[3] = p2
.y
;
2290 texcoords
[2] = 0; vertices
[4] = p2
.x
; vertices
[5] = p2
.y
;
2291 texcoords
[3] = s
; vertices
[6] = p3
.x
; vertices
[7] = p3
.y
;
2293 texcoords
[4] = 0; vertices
[8] = p3
.x
; vertices
[9] = p3
.y
;
2294 texcoords
[5] = t
; vertices
[10] = p4
.x
; vertices
[11] = p4
.y
;
2296 texcoords
[6] = 0; vertices
[12] = p4
.x
; vertices
[13] = p4
.y
;
2297 texcoords
[7] = s
; vertices
[14] = p1
.x
; vertices
[15] = p1
.y
;
2299 glDrawArrays (GL_LINES
, 0, 8);
2302 glDisable (GL_BLEND
);
2303 glDisable (GL_TEXTURE_1D
);
2306 static int compareslinks (const void *l
, const void *r
)
2308 struct slink
const *ls
= l
;
2309 struct slink
const *rs
= r
;
2310 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
2311 return rs
->bbox
.x0
- rs
->bbox
.x0
;
2313 return ls
->bbox
.y0
- rs
->bbox
.y0
;
2316 static void droptext (struct page
*page
)
2319 fz_free_text_page (state
.ctx
, page
->text
);
2322 page
->fmark
.span
= NULL
;
2323 page
->lmark
.span
= NULL
;
2327 fz_free_text_sheet (state
.ctx
, page
->sheet
);
2332 static void dropslinks (struct page
*page
)
2335 free (page
->slinks
);
2336 page
->slinks
= NULL
;
2337 page
->slinkcount
= 0;
2341 static void ensureslinks (struct page
*page
)
2345 size_t slinksize
= sizeof (*page
->slinks
);
2346 fz_link
*link
, *links
;
2348 if (state
.gen
!= page
->sgen
) {
2350 page
->sgen
= state
.gen
;
2352 if (page
->slinks
) return;
2354 switch (page
->type
) {
2356 links
= page
->u
.pdfpage
->links
;
2357 trimctm (page
->u
.pdfpage
, page
->pdimno
);
2359 &state
.pagedims
[page
->pdimno
].tctm
,
2360 &state
.pagedims
[page
->pdimno
].ctm
);
2364 links
= page
->u
.xpspage
->links
;
2365 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
2372 for (link
= links
; link
; link
= link
->next
) {
2376 page
->slinkcount
= count
;
2377 page
->slinks
= calloc (count
, slinksize
);
2378 if (!page
->slinks
) {
2379 err (1, "realloc slinks %d", count
);
2382 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
2386 fz_transform_rect (&rect
, &ctm
);
2387 page
->slinks
[i
].link
= link
;
2388 fz_round_rect (&page
->slinks
[i
].bbox
, &rect
);
2390 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
2394 /* slightly tweaked fmt_ulong by D.J. Bernstein */
2395 static void fmt_linkn (char *s
, unsigned int u
)
2397 unsigned int len
; unsigned int q
;
2398 int zma
= 'z' - 'a' + 1;
2400 while (q
> zma
- 1) { ++len
; q
/= zma
; }
2403 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
2404 /* handles u == 0 */
2409 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
2410 int noff
, char *targ
, int tlen
, int hfsize
)
2414 struct slink
*slink
;
2415 double x0
, y0
, x1
, y1
, w
;
2417 ensureslinks (page
);
2418 glColor3ub (0xc3, 0xb0, 0x91);
2419 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2420 fmt_linkn (buf
, i
+ noff
);
2421 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2422 slink
= &page
->slinks
[i
];
2424 x0
= slink
->bbox
.x0
+ xoff
- 5;
2425 y1
= slink
->bbox
.y0
+ yoff
- 5;
2426 y0
= y1
+ 10 + hfsize
;
2427 w
= measure_string (state
.face
, hfsize
, buf
);
2429 recti (x0
, y0
, x1
, y1
);
2433 glEnable (GL_BLEND
);
2434 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2435 glEnable (GL_TEXTURE_2D
);
2436 glColor3ub (0, 0, 0);
2437 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2438 fmt_linkn (buf
, i
+ noff
);
2439 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2440 slink
= &page
->slinks
[i
];
2442 x0
= slink
->bbox
.x0
+ xoff
;
2443 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
2444 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
2447 glDisable (GL_TEXTURE_2D
);
2448 glDisable (GL_BLEND
);
2451 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
2454 struct slice
*slice1
;
2455 unsigned char *texdata
;
2458 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
2459 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
2461 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
2462 && state
.texowners
[slice
->texindex
].slice
== slice
) {
2463 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
2467 int texindex
= state
.texindex
++ % state
.texcount
;
2469 if (state
.texowners
[texindex
].w
== tile
->w
) {
2470 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2474 state
.texowners
[texindex
].h
= slice
->h
;
2478 state
.texowners
[texindex
].h
= slice
->h
;
2481 state
.texowners
[texindex
].w
= tile
->w
;
2482 state
.texowners
[texindex
].slice
= slice
;
2483 slice
->texindex
= texindex
;
2485 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2487 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
2491 texdata
= tile
->pixmap
->samples
;
2494 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2506 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2518 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
2523 CAMLprim value
ml_begintiles (value unit_v
)
2525 CAMLparam1 (unit_v
);
2526 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2527 glTexCoordPointer (2, GL_FLOAT
, 0, state
.texcoords
);
2528 glVertexPointer (2, GL_FLOAT
, 0, state
.vertices
);
2529 CAMLreturn (unit_v
);
2532 CAMLprim value
ml_endtiles (value unit_v
)
2534 CAMLparam1 (unit_v
);
2535 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2536 CAMLreturn (unit_v
);
2539 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2541 CAMLparam2 (args_v
, ptr_v
);
2542 int dispx
= Int_val (Field (args_v
, 0));
2543 int dispy
= Int_val (Field (args_v
, 1));
2544 int dispw
= Int_val (Field (args_v
, 2));
2545 int disph
= Int_val (Field (args_v
, 3));
2546 int tilex
= Int_val (Field (args_v
, 4));
2547 int tiley
= Int_val (Field (args_v
, 5));
2548 char *s
= String_val (ptr_v
);
2549 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2550 int slicey
, firstslice
;
2551 struct slice
*slice
;
2552 GLfloat
*texcoords
= state
.texcoords
;
2553 GLfloat
*vertices
= state
.vertices
;
2555 firstslice
= tiley
/ tile
->sliceheight
;
2556 slice
= &tile
->slices
[firstslice
];
2557 slicey
= tiley
% tile
->sliceheight
;
2562 dh
= slice
->h
- slicey
;
2563 dh
= MIN (disph
, dh
);
2564 uploadslice (tile
, slice
);
2566 texcoords
[0] = tilex
; texcoords
[1] = slicey
;
2567 texcoords
[2] = tilex
+dispw
; texcoords
[3] = slicey
;
2568 texcoords
[4] = tilex
; texcoords
[5] = slicey
+dh
;
2569 texcoords
[6] = tilex
+dispw
; texcoords
[7] = slicey
+dh
;
2571 vertices
[0] = dispx
; vertices
[1] = dispy
;
2572 vertices
[2] = dispx
+dispw
; vertices
[3] = dispy
;
2573 vertices
[4] = dispx
; vertices
[5] = dispy
+dh
;
2574 vertices
[6] = dispx
+dispw
; vertices
[7] = dispy
+dh
;
2576 glDrawArrays (GL_TRIANGLE_STRIP
, 0, 4);
2580 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2583 CAMLreturn (Val_unit
);
2586 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2587 value xoff_v
, value yoff_v
,
2590 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2591 int xoff
= Int_val (xoff_v
);
2592 int yoff
= Int_val (yoff_v
);
2593 int noff
= Int_val (Field (li_v
, 0));
2594 char *targ
= String_val (Field (li_v
, 1));
2595 int tlen
= caml_string_length (Field (li_v
, 1));
2596 int hfsize
= Int_val (Field (li_v
, 2));
2597 char *s
= String_val (ptr_v
);
2598 int hlmask
= Int_val (hlinks_v
);
2599 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2602 /* deal with loadpage failed pages */
2606 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2607 if (trylock ("ml_postprocess")) {
2612 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2613 noff
= page
->slinkcount
;
2615 if (page
->tgen
== state
.gen
) {
2616 showsel (page
, xoff
, yoff
);
2618 unlock ("ml_postprocess");
2621 CAMLreturn (Val_int (noff
));
2624 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2628 const fz_matrix
*tctm
;
2629 fz_link
*link
, *links
;
2631 switch (page
->type
) {
2633 trimctm (page
->u
.pdfpage
, page
->pdimno
);
2634 tctm
= &state
.pagedims
[page
->pdimno
].tctm
;
2635 links
= page
->u
.pdfpage
->links
;
2639 tctm
= &fz_identity
;
2640 links
= page
->u
.xpspage
->links
;
2649 fz_concat (&ctm
, tctm
, &state
.pagedims
[page
->pdimno
].ctm
);
2650 fz_invert_matrix (&ctm
, &ctm
);
2651 fz_transform_point (&p
, &ctm
);
2653 for (link
= links
; link
; link
= link
->next
) {
2654 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2655 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2663 static void ensuretext (struct page
*page
)
2665 if (state
.gen
!= page
->tgen
) {
2667 page
->tgen
= state
.gen
;
2673 page
->text
= fz_new_text_page (state
.ctx
);
2674 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2675 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2676 ctm
= pagectm (page
);
2677 fz_begin_page (tdev
, &fz_infinite_rect
, &ctm
);
2678 fz_run_display_list (page
->dlist
, tdev
, &ctm
, &fz_infinite_rect
, NULL
);
2679 qsort (page
->text
->blocks
, page
->text
->len
,
2680 sizeof (*page
->text
->blocks
), compareblocks
);
2682 fz_free_device (tdev
);
2686 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2688 CAMLparam2 (start_page_v
, dir_v
);
2690 int i
, dir
= Int_val (dir_v
);
2691 int start_page
= Int_val (start_page_v
);
2692 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2694 ret_v
= Val_int (0);
2695 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2699 lock ("ml_findpage_with_links");
2700 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2703 switch (state
.type
) {
2706 pdf_page
*page
= NULL
;
2708 fz_try (state
.ctx
) {
2709 page
= pdf_load_page (state
.u
.pdf
, i
);
2710 found
= !!page
->links
;
2712 fz_catch (state
.ctx
) {
2722 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2723 found
= !!page
->links
;
2729 ARSERT (0 && "invalid document type");
2733 ret_v
= caml_alloc_small (1, 1);
2734 Field (ret_v
, 0) = Val_int (i
);
2739 unlock ("ml_findpage_with_links");
2745 enum { dir_first
, dir_last
};
2746 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2748 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2750 CAMLparam2 (ptr_v
, dir_v
);
2751 CAMLlocal2 (ret_v
, pos_v
);
2753 int dirtag
, i
, slinkindex
;
2754 struct slink
*found
= NULL
,*slink
;
2755 char *s
= String_val (ptr_v
);
2757 page
= parse_pointer ("ml_findlink", s
);
2758 ret_v
= Val_int (0);
2759 if (trylock ("ml_findlink")) {
2763 ensureslinks (page
);
2765 if (Is_block (dir_v
)) {
2766 dirtag
= Tag_val (dir_v
);
2768 case dir_first_visible
:
2770 int x0
, y0
, dir
, first_index
, last_index
;
2772 pos_v
= Field (dir_v
, 0);
2773 x0
= Int_val (Field (pos_v
, 0));
2774 y0
= Int_val (Field (pos_v
, 1));
2775 dir
= Int_val (Field (pos_v
, 2));
2780 last_index
= page
->slinkcount
;
2783 first_index
= page
->slinkcount
- 1;
2787 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2788 slink
= &page
->slinks
[i
];
2789 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2798 slinkindex
= Int_val (Field (dir_v
, 0));
2799 found
= &page
->slinks
[slinkindex
];
2800 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2801 slink
= &page
->slinks
[i
];
2802 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2810 slinkindex
= Int_val (Field (dir_v
, 0));
2811 found
= &page
->slinks
[slinkindex
];
2812 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2813 slink
= &page
->slinks
[i
];
2814 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2822 slinkindex
= Int_val (Field (dir_v
, 0));
2823 found
= &page
->slinks
[slinkindex
];
2824 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2825 slink
= &page
->slinks
[i
];
2826 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2834 slinkindex
= Int_val (Field (dir_v
, 0));
2835 found
= &page
->slinks
[slinkindex
];
2836 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2837 slink
= &page
->slinks
[i
];
2838 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2847 dirtag
= Int_val (dir_v
);
2850 found
= page
->slinks
;
2855 found
= page
->slinks
+ (page
->slinkcount
- 1);
2861 ret_v
= caml_alloc_small (2, 1);
2862 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2865 unlock ("ml_findlink");
2870 enum { uuri
, ugoto
, utext
, uunexpected
,
2871 ulaunch
, unamed
, uremote
, uremotedest
};
2877 switch (link->dest.kind) { \
2878 case FZ_LINK_GOTO: \
2882 pageno = link->dest.ld.gotor.page; \
2886 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2887 p.y = link->dest.ld.gotor.lt.y; \
2888 fz_transform_point (&p, &pdim->lctm); \
2890 tup_v = caml_alloc_tuple (2); \
2891 ret_v = caml_alloc_small (1, ugoto); \
2892 Field (tup_v, 0) = Val_int (pageno); \
2893 Field (tup_v, 1) = Val_int (p.y); \
2894 Field (ret_v, 0) = tup_v; \
2899 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2900 ret_v = caml_alloc_small (1, uuri); \
2901 Field (ret_v, 0) = str_v; \
2904 case FZ_LINK_LAUNCH: \
2905 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2906 ret_v = caml_alloc_small (1, ulaunch); \
2907 Field (ret_v, 0) = str_v; \
2910 case FZ_LINK_NAMED: \
2911 str_v = caml_copy_string (link->dest.ld.named.named); \
2912 ret_v = caml_alloc_small (1, unamed); \
2913 Field (ret_v, 0) = str_v; \
2916 case FZ_LINK_GOTOR: \
2920 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2921 pageno = link->dest.ld.gotor.page; \
2922 if (pageno == -1) { \
2923 gr_v = caml_copy_string (link->dest.ld.gotor.dest); \
2924 rty = uremotedest; \
2927 gr_v = Val_int (pageno); \
2930 tup_v = caml_alloc_tuple (2); \
2931 ret_v = caml_alloc_small (1, rty); \
2932 Field (tup_v, 0) = str_v; \
2933 Field (tup_v, 1) = gr_v; \
2934 Field (ret_v, 0) = tup_v; \
2942 snprintf (buf, sizeof (buf), \
2943 "unhandled link kind %d", link->dest.kind); \
2944 str_v = caml_copy_string (buf); \
2945 ret_v = caml_alloc_small (1, uunexpected); \
2946 Field (ret_v, 0) = str_v; \
2952 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2954 CAMLparam2 (ptr_v
, n_v
);
2955 CAMLlocal4 (ret_v
, tup_v
, str_v
, gr_v
);
2958 struct pagedim
*pdim
;
2959 char *s
= String_val (ptr_v
);
2961 ret_v
= Val_int (0);
2962 if (trylock ("ml_getlink")) {
2966 page
= parse_pointer ("ml_getlink", s
);
2967 ensureslinks (page
);
2968 pdim
= &state
.pagedims
[page
->pdimno
];
2969 link
= page
->slinks
[Int_val (n_v
)].link
;
2972 unlock ("ml_getlink");
2977 CAMLprim value
ml_getlinkcount (value ptr_v
)
2981 char *s
= String_val (ptr_v
);
2983 page
= parse_pointer ("ml_getlinkcount", s
);
2984 CAMLreturn (Val_int (page
->slinkcount
));
2987 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2989 CAMLparam2 (ptr_v
, n_v
);
2992 struct slink
*slink
;
2993 char *s
= String_val (ptr_v
);
2995 page
= parse_pointer ("ml_getlinkrect", s
);
2996 ret_v
= caml_alloc_tuple (4);
2997 if (trylock ("ml_getlinkrect")) {
2998 Field (ret_v
, 0) = Val_int (0);
2999 Field (ret_v
, 1) = Val_int (0);
3000 Field (ret_v
, 2) = Val_int (0);
3001 Field (ret_v
, 3) = Val_int (0);
3004 ensureslinks (page
);
3006 slink
= &page
->slinks
[Int_val (n_v
)];
3007 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
3008 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
3009 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
3010 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
3011 unlock ("ml_getlinkrect");
3017 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
3019 CAMLparam3 (ptr_v
, x_v
, y_v
);
3020 CAMLlocal4 (ret_v
, tup_v
, str_v
, gr_v
);
3023 char *s
= String_val (ptr_v
);
3024 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3025 struct pagedim
*pdim
;
3027 ret_v
= Val_int (0);
3028 if (trylock ("ml_whatsunder")) {
3032 page
= parse_pointer ("ml_whatsunder", s
);
3033 pdim
= &state
.pagedims
[page
->pdimno
];
3034 x
+= pdim
->bounds
.x0
;
3035 y
+= pdim
->bounds
.y0
;
3036 link
= getlink (page
, x
, y
);
3042 fz_page_block
*pageb
;
3043 fz_text_block
*block
;
3046 for (pageb
= page
->text
->blocks
;
3047 pageb
< page
->text
->blocks
+ page
->text
->len
;
3050 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3051 block
= pageb
->u
.text
;
3054 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3057 for (line
= block
->lines
;
3058 line
< block
->lines
+ block
->len
;
3063 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3066 for (span
= line
->first_span
; span
; span
= span
->next
) {
3070 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3073 for (charnum
= 0; charnum
< span
->len
; ++charnum
) {
3075 fz_text_char_bbox (&bbox
, span
, charnum
);
3078 if (x
>= b
->x0
&& x
<= b
->x1
3079 && y
>= b
->y0
&& y
<= b
->y1
) {
3080 fz_text_style
*style
= span
->text
->style
;
3082 style
->font
&& style
->font
->name
3084 : "Span has no font name"
3086 FT_FaceRec
*face
= style
->font
->ft_face
;
3087 if (face
&& face
->family_name
) {
3089 char *n1
= face
->family_name
;
3090 size_t l1
= strlen (n1
);
3091 size_t l2
= strlen (n2
);
3093 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
3094 s
= malloc (l1
+ l2
+ 2);
3098 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
3099 str_v
= caml_copy_string (s
);
3105 str_v
= caml_copy_string (n2
);
3107 ret_v
= caml_alloc_small (1, utext
);
3108 Field (ret_v
, 0) = str_v
;
3117 unlock ("ml_whatsunder");
3123 enum { mark_page
, mark_block
, mark_line
, mark_word
};
3125 static int uninteresting (int c
)
3127 return c
== ' ' || c
== '\n' || c
== '\t' || c
== '\n' || c
== '\r'
3131 CAMLprim value
ml_clearmark (value ptr_v
)
3134 char *s
= String_val (ptr_v
);
3137 if (trylock ("ml_clearmark")) {
3141 page
= parse_pointer ("ml_clearmark", s
);
3142 page
->fmark
.span
= NULL
;
3143 page
->lmark
.span
= NULL
;
3147 unlock ("ml_clearmark");
3149 CAMLreturn (Val_unit
);
3152 CAMLprim value
ml_markunder (value ptr_v
, value x_v
, value y_v
, value mark_v
)
3154 CAMLparam4 (ptr_v
, x_v
, y_v
, mark_v
);
3159 fz_page_block
*pageb
;
3160 fz_text_block
*block
;
3161 struct pagedim
*pdim
;
3162 int mark
= Int_val (mark_v
);
3163 char *s
= String_val (ptr_v
);
3164 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3166 ret_v
= Val_bool (0);
3167 if (trylock ("ml_markunder")) {
3171 page
= parse_pointer ("ml_markunder", s
);
3172 pdim
= &state
.pagedims
[page
->pdimno
];
3176 if (mark
== mark_page
) {
3178 fz_page_block
*pb1
= NULL
, *pb2
= NULL
;
3180 for (i
= 0; i
< page
->text
->len
; ++i
) {
3181 if (page
->text
->blocks
[i
].type
== FZ_PAGE_BLOCK_TEXT
) {
3182 pb1
= &page
->text
->blocks
[i
];
3186 if (!pb1
) goto unlock
;
3188 for (i
= page
->text
->len
- 1; i
>= 0; --i
) {
3189 if (page
->text
->blocks
[i
].type
== FZ_PAGE_BLOCK_TEXT
) {
3190 pb2
= &page
->text
->blocks
[i
];
3194 if (!pb2
) goto unlock
;
3196 block
= pb1
->u
.text
;
3199 page
->fmark
.span
= block
->lines
->first_span
;
3201 block
= pb2
->u
.text
;
3202 line
= &block
->lines
[block
->len
- 1];
3203 page
->lmark
.i
= line
->last_span
->len
- 1;
3204 page
->lmark
.span
= line
->last_span
;
3205 ret_v
= Val_bool (1);
3209 x
+= pdim
->bounds
.x0
;
3210 y
+= pdim
->bounds
.y0
;
3212 for (pageb
= page
->text
->blocks
;
3213 pageb
< page
->text
->blocks
+ page
->text
->len
;
3215 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3216 block
= pageb
->u
.text
;
3219 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3222 if (mark
== mark_block
) {
3224 page
->fmark
.span
= block
->lines
->first_span
;
3226 line
= &block
->lines
[block
->len
- 1];
3227 page
->lmark
.i
= line
->last_span
->len
- 1;
3228 page
->lmark
.span
= line
->last_span
;
3229 ret_v
= Val_bool (1);
3233 for (line
= block
->lines
;
3234 line
< block
->lines
+ block
->len
;
3239 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3242 if (mark
== mark_line
) {
3244 page
->fmark
.span
= line
->first_span
;
3246 page
->lmark
.i
= line
->last_span
->len
- 1;
3247 page
->lmark
.span
= line
->last_span
;
3248 ret_v
= Val_bool (1);
3252 for (span
= line
->first_span
; span
; span
= span
->next
) {
3256 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3259 for (charnum
= 0; charnum
< span
->len
; ++charnum
) {
3261 fz_text_char_bbox (&bbox
, span
, charnum
);
3264 if (x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
) {
3266 int charnum2
, charnum3
= -1, charnum4
= -1;
3268 if (uninteresting (span
->text
[charnum
].c
)) goto unlock
;
3270 for (charnum2
= charnum
; charnum2
>= 0; --charnum2
) {
3271 if (uninteresting (span
->text
[charnum2
].c
)) {
3272 charnum3
= charnum2
+ 1;
3276 if (charnum3
== -1) charnum3
= 0;
3278 for (charnum2
= charnum
+ 1;
3279 charnum2
< span
->len
;
3281 if (uninteresting (span
->text
[charnum2
].c
)) break;
3282 charnum4
= charnum2
;
3284 if (charnum4
== -1) goto unlock
;
3286 page
->fmark
.i
= charnum3
;
3287 page
->fmark
.span
= span
;
3289 page
->lmark
.i
= charnum4
;
3290 page
->lmark
.span
= span
;
3291 ret_v
= Val_bool (1);
3299 if (!Bool_val (ret_v
)) {
3300 page
->fmark
.span
= NULL
;
3301 page
->lmark
.span
= NULL
;
3305 unlock ("ml_markunder");
3311 CAMLprim value
ml_rectofblock (value ptr_v
, value x_v
, value y_v
)
3313 CAMLparam3 (ptr_v
, x_v
, y_v
);
3314 CAMLlocal2 (ret_v
, res_v
);
3317 fz_page_block
*pageb
;
3318 struct pagedim
*pdim
;
3319 char *s
= String_val (ptr_v
);
3320 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3322 ret_v
= Val_int (0);
3323 if (trylock ("ml_rectofblock")) {
3327 page
= parse_pointer ("ml_rectofblock", s
);
3328 pdim
= &state
.pagedims
[page
->pdimno
];
3329 x
+= pdim
->bounds
.x0
;
3330 y
+= pdim
->bounds
.y0
;
3334 for (pageb
= page
->text
->blocks
;
3335 pageb
< page
->text
->blocks
+ page
->text
->len
;
3337 switch (pageb
->type
) {
3338 case FZ_PAGE_BLOCK_TEXT
:
3339 b
= &pageb
->u
.text
->bbox
;
3342 case FZ_PAGE_BLOCK_IMAGE
:
3343 b
= &pageb
->u
.image
->bbox
;
3350 if (x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)
3355 res_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3356 ret_v
= caml_alloc_small (1, 1);
3357 Store_double_field (res_v
, 0, b
->x0
);
3358 Store_double_field (res_v
, 1, b
->x1
);
3359 Store_double_field (res_v
, 2, b
->y0
);
3360 Store_double_field (res_v
, 3, b
->y1
);
3361 Field (ret_v
, 0) = res_v
;
3363 unlock ("ml_rectofblock");
3369 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
3371 CAMLparam2 (ptr_v
, rect_v
);
3374 struct pagedim
*pdim
;
3375 char *s
= String_val (ptr_v
);
3376 int i
, x0
, x1
, y0
, y1
, fi
, li
;
3378 fz_page_block
*pageb
;
3379 fz_text_block
*block
;
3380 fz_text_span
*span
, *fspan
, *lspan
;
3382 if (trylock ("ml_seltext")) {
3386 page
= parse_pointer ("ml_seltext", s
);
3389 pdim
= &state
.pagedims
[page
->pdimno
];
3390 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;
3391 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
3392 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
3393 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
3404 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
3405 glColor3ub (128, 128, 128);
3406 recti (x0
, y0
, x1
, y1
);
3407 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
3411 fspan
= page
->fmark
.span
;
3414 lspan
= page
->lmark
.span
;
3416 for (pageb
= page
->text
->blocks
;
3417 pageb
< page
->text
->blocks
+ page
->text
->len
;
3419 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3420 block
= pageb
->u
.text
;
3421 for (line
= block
->lines
;
3422 line
< block
->lines
+ block
->len
;
3426 for (span
= line
->first_span
; span
; span
= span
->next
) {
3427 for (i
= 0; i
< span
->len
; ++i
) {
3430 fz_text_char_bbox (&b
, span
, i
);
3432 if (x0
>= b
.x0
&& x0
<= b
.x1
3433 && y0
>= b
.y0
&& y0
<= b
.y1
) {
3438 if (x1
>= b
.x0
&& x1
<= b
.x1
3439 && y1
>= b
.y0
&& y1
<= b
.y1
) {
3444 if (0 && selected
) {
3445 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
3446 glColor3ub (128, 128, 128);
3447 recti (b
.x0
, b
.y0
, b
.x1
, b
.y1
);
3448 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
3454 if (x1
< x0
&& fspan
== lspan
) {
3466 page
->fmark
.span
= fspan
;
3469 page
->lmark
.span
= lspan
;
3471 unlock ("ml_seltext");
3474 CAMLreturn (Val_unit
);
3477 static int UNUSED_ATTR
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
3482 for (i
= a
; i
<= b
; ++i
) {
3483 len
= fz_runetochar (buf
, span
->text
[i
].c
);
3484 ret
= fwrite (buf
, len
, 1, f
);
3487 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
3488 len
, ret
, strerror (errno
));
3496 value
ml_popen (value UNUSED_ATTR u1
, value UNUSED_ATTR u2
)
3498 caml_failwith ("ml_popen not implemented under Cygwin");
3501 CAMLprim value
ml_popen (value command_v
, value fds_v
)
3503 CAMLparam2 (command_v
, fds_v
);
3504 CAMLlocal2 (l_v
, tup_v
);
3507 value earg_v
= Nothing
;
3508 posix_spawnattr_t attr
;
3509 posix_spawn_file_actions_t fa
;
3510 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
3512 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
3513 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
3516 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
3517 msg
= "posix_spawnattr_init";
3521 #ifdef POSIX_SPAWN_USEVFORK
3522 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
3523 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
3528 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
3531 tup_v
= Field (l_v
, 0);
3532 fd1
= Int_val (Field (tup_v
, 0));
3533 fd2
= Int_val (Field (tup_v
, 1));
3535 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
3536 msg
= "posix_spawn_file_actions_addclose";
3542 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
3543 msg
= "posix_spawn_file_actions_adddup2";
3550 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
3551 msg
= "posix_spawn";
3556 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
3557 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
3561 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
3562 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
3567 unix_error (ret
, msg
, earg_v
);
3569 CAMLreturn (Val_unit
);
3573 CAMLprim value
ml_hassel (value ptr_v
)
3578 char *s
= String_val (ptr_v
);
3580 ret_v
= Val_bool (0);
3581 if (trylock ("ml_hassel")) {
3585 page
= parse_pointer ("ml_hassel", s
);
3586 ret_v
= Val_bool (page
->fmark
.span
&& page
->lmark
.span
);
3587 unlock ("ml_hassel");
3592 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
3594 CAMLparam2 (fd_v
, ptr_v
);
3599 fz_page_block
*pageb
;
3600 fz_text_block
*block
;
3601 int fd
= Int_val (fd_v
);
3602 char *s
= String_val (ptr_v
);
3604 if (trylock ("ml_copysel")) {
3608 page
= parse_pointer ("ml_copysel", s
);
3610 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
3611 fprintf (stderr
, "nothing to copy on page %d\n", page
->pageno
);
3615 f
= fdopen (fd
, "w");
3617 fprintf (stderr
, "failed to fdopen sel pipe (from fd %d): %s\n",
3618 fd
, strerror (errno
));
3622 for (pageb
= page
->text
->blocks
;
3623 pageb
< page
->text
->blocks
+ page
->text
->len
;
3625 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3626 block
= pageb
->u
.text
;
3627 for (line
= block
->lines
;
3628 line
< block
->lines
+ block
->len
;
3632 for (span
= line
->first_span
; span
; span
= span
->next
) {
3635 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
3636 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
3637 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
3640 if (pipespan (f
, span
, a
, b
)) {
3643 if (span
== page
->lmark
.span
) {
3646 if (span
== line
->last_span
) {
3647 if (putc ('\n', f
) == EOF
) {
3649 "failed break line on sel pipe: %s\n",
3660 int ret
= fclose (f
);
3663 if (errno
!= ECHILD
) {
3664 fprintf (stderr
, "failed to close sel pipe: %s\n",
3670 unlock ("ml_copysel");
3675 fprintf (stderr
, "failed to close sel pipe: %s\n",
3679 CAMLreturn (Val_unit
);
3682 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
3684 CAMLparam1 (pagedimno_v
);
3686 int pagedimno
= Int_val (pagedimno_v
);
3689 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3690 if (trylock ("ml_getpdimrect")) {
3691 box
= fz_empty_rect
;
3694 box
= state
.pagedims
[pagedimno
].mediabox
;
3695 unlock ("ml_getpdimrect");
3698 Store_double_field (ret_v
, 0, box
.x0
);
3699 Store_double_field (ret_v
, 1, box
.x1
);
3700 Store_double_field (ret_v
, 2, box
.y0
);
3701 Store_double_field (ret_v
, 3, box
.y1
);
3706 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
3707 value dw_v
, value cols_v
)
3709 CAMLparam3 (winw_v
, winh_v
, dw_v
);
3715 double winw
= Int_val (winw_v
);
3716 double winh
= Int_val (winh_v
);
3717 double dw
= Int_val (dw_v
);
3718 double cols
= Int_val (cols_v
);
3719 double pw
= 1.0, ph
= 1.0;
3721 if (trylock ("ml_zoom_for_height")) {
3725 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3726 double w
= p
->pagebox
.x1
/ cols
;
3727 double h
= p
->pagebox
.y1
;
3731 if (state
.fitmodel
!= FitProportional
) pw
= w
;
3733 if ((state
.fitmodel
== FitProportional
) && w
> pw
) pw
= w
;
3736 zoom
= (((winh
/ ph
) * pw
) + dw
) / winw
;
3737 unlock ("ml_zoom_for_height");
3739 ret_v
= caml_copy_double (zoom
);
3743 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3745 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3747 int pt
= Int_val(pt_v
);
3748 int x
= Int_val (x_v
);
3749 int y
= Int_val (y_v
);
3752 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3753 ret_v
= caml_copy_double (w
);
3757 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3759 CAMLparam2 (pt_v
, string_v
);
3761 int pt
= Int_val (pt_v
);
3764 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3765 ret_v
= caml_copy_double (w
);
3769 CAMLprim value
ml_getpagebox (value opaque_v
)
3771 CAMLparam1 (opaque_v
);
3777 char *s
= String_val (opaque_v
);
3778 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3780 ret_v
= caml_alloc_tuple (4);
3781 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
3782 dev
->hints
|= FZ_IGNORE_SHADE
;
3784 switch (page
->type
) {
3786 ctm
= pagectm (page
);
3787 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, &ctm
, NULL
);
3791 ctm
= pagectm (page
);
3792 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, &ctm
, NULL
);
3796 rect
= fz_infinite_rect
;
3800 fz_free_device (dev
);
3801 fz_round_rect (&bbox
, &rect
);
3802 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3803 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3804 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3805 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3810 CAMLprim value
ml_setaalevel (value level_v
)
3812 CAMLparam1 (level_v
);
3814 state
.aalevel
= Int_val (level_v
);
3815 CAMLreturn (Val_unit
);
3819 #include <X11/Xlib.h>
3825 GLXDrawable drawable
;
3828 #include "keysym2ucs.c"
3830 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3832 CAMLparam1 (keysym_v
);
3834 KeySym keysym
= Int_val (keysym_v
);
3839 rune
= keysym2ucs (keysym
);
3840 len
= fz_runetochar (buf
, rune
);
3842 str_v
= caml_copy_string (buf
);
3846 CAMLprim value
ml_glx (value win_v
)
3849 XVisualInfo
*visual
;
3850 int screen
, wid
= Int_val (win_v
);
3851 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3853 glx
.dpy
= XOpenDisplay (NULL
);
3855 caml_failwith ("XOpenDisplay");
3858 screen
= DefaultScreen (glx
.dpy
);
3859 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
3861 XCloseDisplay (glx
.dpy
);
3863 caml_failwith ("glXChooseVisual");
3866 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
3869 XCloseDisplay (glx
.dpy
);
3871 caml_failwith ("glXCreateContext");
3874 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
3875 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3876 XCloseDisplay (glx
.dpy
);
3879 caml_failwith ("glXMakeCurrent");
3882 CAMLreturn (Val_unit
);
3885 CAMLprim value
ml_swapb (value unit_v
)
3887 CAMLparam1 (unit_v
);
3888 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
3889 CAMLreturn (Val_unit
);
3892 CAMLprim value
ml_glxsync (value unit_v
)
3894 CAMLparam1 (unit_v
);
3895 if (glx
.dpy
&& glx
.ctx
) {
3899 CAMLreturn (Val_unit
);
3902 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
3903 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
3905 CAMLprim value
ml_platform (value unit_v
)
3907 CAMLparam1 (unit_v
);
3908 int platid
= piunknown
;
3910 #if defined __linux__
3912 #elif defined __CYGWIN__
3914 #elif defined __DragonFly__
3915 platid
= pidragonflybsd
;
3916 #elif defined __FreeBSD__
3918 #elif defined __OpenBSD__
3920 #elif defined __NetBSD__
3922 #elif defined __sun__
3924 #elif defined __APPLE__
3927 CAMLreturn (Val_int (platid
));
3930 CAMLprim value
ml_cloexec (value fd_v
)
3933 int fd
= Int_val (fd_v
);
3935 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3936 uerror ("fcntl", Nothing
);
3938 CAMLreturn (Val_unit
);
3941 CAMLprim value
ml_getpbo (value w_v
, value h_v
, value cs_v
)
3943 CAMLparam2 (w_v
, h_v
);
3946 int w
= Int_val (w_v
);
3947 int h
= Int_val (h_v
);
3948 int cs
= Int_val (cs_v
);
3950 if (state
.pbo_usable
) {
3951 pbo
= calloc (sizeof (*pbo
), 1);
3953 err (1, "calloc pbo");
3965 errx (1, "ml_getpbo: invalid colorspace %d", cs
);
3968 state
.glGenBuffersARB (1, &pbo
->id
);
3969 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->id
);
3970 state
.glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->size
,
3971 NULL
, GL_STREAM_DRAW
);
3972 pbo
->ptr
= state
.glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
,
3974 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3976 fprintf (stderr
, "glMapBufferARB failed: %#x\n", glGetError ());
3977 state
.glDeleteBuffersARB (1, &pbo
->id
);
3979 ret_v
= caml_copy_string ("0");
3985 res
= snprintf (NULL
, 0, "%" FMT_ptr
, pbo
);
3987 err (1, "snprintf %" FMT_ptr
" failed", pbo
);
3991 err (1, "malloc %d bytes failed", res
+1);
3993 res
= sprintf (s
, "%" FMT_ptr
, pbo
);
3995 err (1, "sprintf %" FMT_ptr
" failed", pbo
);
3997 ret_v
= caml_copy_string (s
);
4002 ret_v
= caml_copy_string ("0");
4007 CAMLprim value
ml_freepbo (value s_v
)
4010 char *s
= String_val (s_v
);
4011 struct tile
*tile
= parse_pointer ("ml_freepbo", s
);
4014 state
.glDeleteBuffersARB (1, &tile
->pbo
->id
);
4016 tile
->pbo
->ptr
= NULL
;
4017 tile
->pbo
->size
= -1;
4019 CAMLreturn (Val_unit
);
4022 CAMLprim value
ml_unmappbo (value s_v
)
4025 char *s
= String_val (s_v
);
4026 struct tile
*tile
= parse_pointer ("ml_unmappbo", s
);
4029 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
4030 if (state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
) == GL_FALSE
) {
4031 errx (1, "glUnmapBufferARB failed: %#x\n", glGetError ());
4033 tile
->pbo
->ptr
= NULL
;
4034 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
4036 CAMLreturn (Val_unit
);
4039 static void setuppbo (void)
4041 #define GGPA(n) (*(void (**) ()) &state.n = glXGetProcAddress ((GLubyte *) #n))
4042 state
.pbo_usable
= GGPA (glBindBufferARB
)
4043 && GGPA (glUnmapBufferARB
)
4044 && GGPA (glMapBufferARB
)
4045 && GGPA (glBufferDataARB
)
4046 && GGPA (glGenBuffersARB
)
4047 && GGPA (glDeleteBuffersARB
);
4051 CAMLprim value
ml_pbo_usable (value unit_v
)
4053 CAMLparam1 (unit_v
);
4054 CAMLreturn (Val_bool (state
.pbo_usable
));
4057 CAMLprim value
ml_unproject (value ptr_v
, value x_v
, value y_v
)
4059 CAMLparam3 (ptr_v
, x_v
, y_v
);
4060 CAMLlocal2 (ret_v
, tup_v
);
4062 char *s
= String_val (ptr_v
);
4063 int x
= Int_val (x_v
), y
= Int_val (y_v
);
4064 struct pagedim
*pdim
;
4068 page
= parse_pointer ("ml_unproject", s
);
4069 pdim
= &state
.pagedims
[page
->pdimno
];
4071 ret_v
= Val_int (0);
4072 if (trylock ("ml_unproject")) {
4076 switch (page
->type
) {
4078 trimctm (page
->u
.pdfpage
, page
->pdimno
);
4084 p
.x
= x
+ pdim
->bounds
.x0
;
4085 p
.y
= y
+ pdim
->bounds
.y0
;
4087 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->ctm
);
4088 fz_invert_matrix (&ctm
, &ctm
);
4089 fz_transform_point (&p
, &ctm
);
4091 tup_v
= caml_alloc_tuple (2);
4092 ret_v
= caml_alloc_small (1, 1);
4093 Field (tup_v
, 0) = Val_int (p
.x
);
4094 Field (tup_v
, 1) = Val_int (p
.y
);
4095 Field (ret_v
, 0) = tup_v
;
4097 unlock ("ml_unproject");
4102 static void makestippletex (void)
4104 const char pixels
[] = "\xff\xff\0\0";
4105 glGenTextures (1, &state
.stid
);
4106 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
4107 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MIN_FILTER
, GL_LINEAR
);
4108 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
4121 CAMLprim value
ml_fz_version (value unit_v
)
4123 return caml_copy_string (FZ_VERSION
);
4126 #ifdef USE_FONTCONFIG
4132 static fz_font
*fc_load_system_font_func (fz_context
*ctx
,
4136 int needs_exact_metrics
)
4143 FcPattern
*pat
, *pat1
;
4145 lprintf ("looking up %s bold:%d italic:%d needs_exact_metrics:%d\n",
4146 name
, bold
, italic
, needs_exact_metrics
);
4149 fc
.config
= FcInitLoadConfigAndFonts ();
4151 lprintf ("FcInitLoadConfigAndFonts failed\n");
4155 if (!fc
.config
) return NULL
;
4157 size
= strlen (name
);
4158 if (bold
) size
+= sizeof (":bold") - 1;
4159 if (italic
) size
+= sizeof (":italic") - 1;
4162 buf
= malloc (size
);
4164 err (1, "malloc %zu failed", size
);
4168 if (bold
&& italic
) {
4169 strcat (buf
, ":bold:italic");
4172 if (bold
) strcat (buf
, ":bold");
4173 if (italic
) strcat (buf
, ":italic");
4175 for (i
= 0; i
< size
; ++i
) {
4176 if (buf
[i
] == ',' || buf
[i
] == '-') buf
[i
] = ':';
4179 lprintf ("fcbuf=%s\n", buf
);
4180 pat
= FcNameParse ((FcChar8
*) buf
);
4182 printd ("emsg FcNameParse failed\n");
4187 if (!FcConfigSubstitute (fc
.config
, pat
, FcMatchPattern
)) {
4188 printd ("emsg FcConfigSubstitute failed\n");
4192 FcDefaultSubstitute (pat
);
4194 pat1
= FcFontMatch (fc
.config
, pat
, &result
);
4196 printd ("emsg FcFontMatch failed\n");
4197 FcPatternDestroy (pat
);
4202 if (FcPatternGetString (pat1
, FC_FILE
, 0, &path
) != FcResultMatch
) {
4203 printd ("emsg FcPatternGetString failed\n");
4204 FcPatternDestroy (pat
);
4205 FcPatternDestroy (pat1
);
4211 printd ("emsg name=%s path=%s\n", name
, path
);
4213 font
= fz_new_font_from_file (ctx
, name
, (char *) path
, 0, 0);
4214 FcPatternDestroy (pat
);
4215 FcPatternDestroy (pat1
);
4221 CAMLprim value
ml_init (value pipe_v
, value params_v
)
4223 CAMLparam2 (pipe_v
, params_v
);
4224 CAMLlocal2 (trim_v
, fuzz_v
);
4231 struct sigaction sa
;
4233 state
.cr
= Int_val (Field (pipe_v
, 0));
4234 state
.cw
= Int_val (Field (pipe_v
, 1));
4235 state
.rotate
= Int_val (Field (params_v
, 0));
4236 state
.fitmodel
= Int_val (Field (params_v
, 1));
4237 trim_v
= Field (params_v
, 2);
4238 texcount
= Int_val (Field (params_v
, 3));
4239 state
.sliceheight
= Int_val (Field (params_v
, 4));
4240 mustoresize
= Int_val (Field (params_v
, 5));
4241 colorspace
= Int_val (Field (params_v
, 6));
4242 fontpath
= String_val (Field (params_v
, 7));
4244 state
.trimcachepath
= strdup (String_val (Field (params_v
, 8)));
4245 if (!state
.trimcachepath
) {
4246 fprintf (stderr
, "failed to strdup trimcachepath: %s\n",
4249 haspboext
= Bool_val (Field (params_v
, 9));
4251 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
4253 #ifdef USE_FONTCONFIG
4254 fz_install_load_system_font_funcs (state
.ctx
, fc_load_system_font_func
, NULL
);
4257 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
4258 fuzz_v
= Field (trim_v
, 1);
4259 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
4260 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
4261 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
4262 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
4264 set_tex_params (colorspace
);
4267 #ifndef USE_FONTCONFIG
4268 state
.face
= load_font (fontpath
);
4272 char *buf
= fontpath
;
4273 FcPattern
*pat
, *pat1
;
4276 fc
.config
= FcInitLoadConfigAndFonts ();
4278 errx (1, "FcInitLoadConfigAndFonts failed");
4281 pat
= FcNameParse ((FcChar8
*) buf
);
4283 errx (1, "FcNameParse failed");
4286 if (!FcConfigSubstitute (fc
.config
, pat
, FcMatchPattern
)) {
4287 errx (1, "FcConfigSubstitute failed");
4289 FcDefaultSubstitute (pat
);
4291 pat1
= FcFontMatch (fc
.config
, pat
, &result
);
4293 errx (1, "FcFontMatch failed");
4296 if (FcPatternGetString (pat1
, FC_FILE
, 0, &path
) != FcResultMatch
) {
4297 errx (1, "FcPatternGetString failed");
4300 state
.face
= load_font ((char *) path
);
4301 FcPatternDestroy (pat
);
4302 FcPatternDestroy (pat1
);
4307 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
4309 state
.face
= load_builtin_font (base
, len
);
4311 if (!state
.face
) _exit (1);
4313 realloctexts (texcount
);
4322 sa
.sa_handler
= SIG_IGN
;
4323 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
4325 sa
.sa_handler
= SIG_DFL
;
4326 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
4328 if (sigemptyset (&sa
.sa_mask
)) {
4329 err (1, "sigemptyset");
4331 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
4332 err (1, "sigaction");
4335 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
4337 errx (1, "pthread_create: %s", strerror (ret
));
4340 CAMLreturn (Val_unit
);