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>
35 #include <mupdf-internal.h>
37 #include <muxps-internal.h>
40 #include FT_FREETYPE_H
45 extern char **environ
;
48 #define MIN(a,b) ((a) < (b) ? (a) : (b))
49 #define MAX(a,b) ((a) > (b) ? (a) : (b))
52 #define NORETURN_ATTR __attribute__ ((noreturn))
53 #define UNUSED_ATTR __attribute__ ((unused))
54 #define OPTIMIZE_ATTR(n) __attribute__ ((optimize ("O"#n)))
55 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
59 #define OPTIMIZE_ATTR(n)
60 #define GCC_FMT_ATTR(a, b)
66 #define FMT_ptr_cast(p) (p)
67 #define FMT_ptr_cast2(p) (p)
69 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
70 err (int exitcode
, const char *fmt
, ...)
77 vfprintf (stderr
, fmt
, ap
);
79 fprintf (stderr
, ": %s\n", strerror (savederrno
));
84 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
85 errx (int exitcode
, const char *fmt
, ...)
90 vfprintf (stderr
, fmt
, ap
);
97 #ifndef GL_TEXTURE_RECTANGLE_ARB
98 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
102 #define GL_BGRA 0x80E1
105 #ifndef GL_UNSIGNED_INT_8_8_8_8
106 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
109 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
110 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
114 #define lprintf printf
119 #define ARSERT(cond) for (;;) { \
121 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
137 struct slice slices
[1];
148 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
156 enum { DPDF
, DXPS
, DCBZ
};
165 fz_text_sheet
*sheet
;
172 fz_display_list
*dlist
;
174 struct slink
*slinks
;
179 void (*freepage
) (void *);
185 struct pagedim
*pagedims
;
204 fz_colorspace
*colorspace
;
226 void (*closedoc
) (void);
227 void (*freepage
) (void *);
234 void (*glBindBufferARB
) (GLenum
, GLuint
);
235 GLboolean (*glUnmapBufferARB
) (GLenum
);
236 void *(*glMapBufferARB
) (GLenum
, GLenum
);
237 void (*glBufferDataARB
) (GLenum
, GLsizei
, void *, GLenum
);
238 void (*glGenBuffersARB
) (GLsizei
, GLuint
*);
239 void (*glDeleteBuffersARB
) (GLsizei
, GLuint
*);
248 static void UNUSED_ATTR
debug_rect (const char *cap
, fz_rect r
)
250 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
253 static void UNUSED_ATTR
debug_bbox (const char *cap
, fz_irect r
)
255 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
258 static void UNUSED_ATTR
debug_matrix (const char *cap
, fz_matrix m
)
260 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
261 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
264 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
266 static void lock (const char *cap
)
268 int ret
= pthread_mutex_lock (&mutex
);
270 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
274 static void unlock (const char *cap
)
276 int ret
= pthread_mutex_unlock (&mutex
);
278 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
282 static int trylock (const char *cap
)
284 int ret
= pthread_mutex_trylock (&mutex
);
285 if (ret
&& ret
!= EBUSY
) {
286 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
291 static void *parse_pointer (const char *cap
, const char *s
)
296 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
298 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
303 static double now (void)
307 if (gettimeofday (&tv
, NULL
)) {
308 err (1, "gettimeofday");
310 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
313 static int hasdata (void)
316 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
317 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
321 CAMLprim value
ml_hasdata (value fd_v
)
326 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
327 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
328 CAMLreturn (Val_bool (avail
> 0));
331 static void readdata (void *p
, int size
)
336 n
= read (state
.cr
, p
, size
);
338 if (errno
== EINTR
) goto again
;
339 err (1, "read (req %d, ret %zd)", size
, n
);
342 if (!n
) errx (1, "EOF while reading");
343 errx (1, "read (req %d, ret %zd)", size
, n
);
347 static void writedata (char *p
, int size
)
352 buf
[0] = (size
>> 24) & 0xff;
353 buf
[1] = (size
>> 16) & 0xff;
354 buf
[2] = (size
>> 8) & 0xff;
355 buf
[3] = (size
>> 0) & 0xff;
357 n
= write (state
.cw
, buf
, 4);
359 if (!n
) errx (1, "EOF while writing length");
360 err (1, "write %zd", n
);
363 n
= write (state
.cw
, p
, size
);
365 if (!n
) errx (1, "EOF while writing data");
366 err (1, "write (req %d, ret %zd)", size
, n
);
370 static int readlen (void)
375 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
378 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
386 if (!buf
) err (1, "malloc for temp buf (%d bytes) failed", size
);
389 len
= vsnprintf (buf
, size
, fmt
, ap
);
392 if (len
> -1 && len
< size
) {
393 writedata (buf
, len
);
403 buf
= realloc (buf
, size
);
408 static void closepdf (void)
411 pdf_close_document (state
.u
.pdf
);
416 static void closexps (void)
419 xps_close_document (state
.u
.xps
);
424 static void closecbz (void)
427 cbz_close_document (state
.u
.cbz
);
432 static void freepdfpage (void *ptr
)
434 pdf_free_page (state
.u
.pdf
, ptr
);
437 static void freeemptyxxxpage (void *ptr
)
442 static void freexpspage (void *ptr
)
444 xps_free_page (state
.u
.xps
, ptr
);
447 static void freecbzpage (void *ptr
)
449 cbz_free_page (state
.u
.cbz
, ptr
);
452 static void openxref (char *filename
, char *password
)
456 for (i
= 0; i
< state
.texcount
; ++i
) {
457 state
.texowners
[i
].w
= -1;
458 state
.texowners
[i
].slice
= NULL
;
461 if (state
.closedoc
) state
.closedoc ();
463 len
= strlen (filename
);
469 ext
[0] = tolower ((int) filename
[len
-3]);
470 ext
[1] = tolower ((int) filename
[len
-2]);
471 ext
[2] = tolower ((int) filename
[len
-1]);
473 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
476 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
481 if (state
.pagedims
) {
482 free (state
.pagedims
);
483 state
.pagedims
= NULL
;
485 state
.pagedimcount
= 0;
487 fz_set_aa_level (state
.ctx
, state
.aalevel
);
488 switch (state
.type
) {
490 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
491 if (pdf_needs_password (state
.u
.pdf
)) {
492 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
494 errx (1, "invalid password");
497 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
498 state
.closedoc
= closepdf
;
499 state
.freepage
= freepdfpage
;
503 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
504 state
.pagecount
= xps_count_pages (state
.u
.xps
);
505 state
.closedoc
= closexps
;
506 state
.freepage
= freexpspage
;
510 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
511 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
512 state
.closedoc
= closecbz
;
513 state
.freepage
= freecbzpage
;
518 static void pdfinfo (void)
520 if (state
.type
== DPDF
) {
523 printd ("info PDF version\t%d.%d",
524 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
526 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
530 char *items
[] = { "Title", "Author", "Creator",
531 "Producer", "CreationDate" };
533 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
534 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
535 s
= pdf_to_utf8 (state
.u
.pdf
, obj
);
538 printd ("title %s", s
);
540 printd ("info %s\t%s", items
[i
], s
);
542 fz_free (state
.ctx
, s
);
549 static void unlinktile (struct tile
*tile
)
553 for (i
= 0; i
< tile
->slicecount
; ++i
) {
554 struct slice
*s
= &tile
->slices
[i
];
556 if (s
->texindex
!= -1) {
557 if (state
.texowners
[s
->texindex
].slice
== s
) {
558 state
.texowners
[s
->texindex
].slice
= NULL
;
564 static void freepage (struct page
*page
)
567 fz_free_text_page (state
.ctx
, page
->text
);
570 fz_free_text_sheet (state
.ctx
, page
->sheet
);
575 page
->freepage (page
->u
.ptr
);
576 fz_free_display_list (state
.ctx
, page
->dlist
);
580 static void freetile (struct tile
*tile
)
585 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
588 fz_drop_pixmap (state
.ctx
, state
.pig
);
590 state
.pig
= tile
->pixmap
;
595 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
603 static int cacheline32bytes
;
605 static void __attribute__ ((constructor
)) clcheck (void)
607 char **envp
= environ
;
612 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
614 cacheline32bytes
= auxv
[1] == 32;
620 static void OPTIMIZE_ATTR (3) clearpixmap (fz_pixmap
*pixmap
)
622 size_t size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
623 if (cacheline32bytes
&& size
> 32) {
624 intptr_t a1
, a2
, diff
;
626 vector
unsigned char v
= vec_splat_u8 (-1);
627 vector
unsigned char *p
;
629 a1
= a2
= (intptr_t) pixmap
->samples
;
630 a2
= (a1
+ 31) & ~31;
635 while (a1
!= a2
) *(char *) a1
++ = 0xff;
636 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
637 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
639 vec_st (v
, i
+ 16, p
);
641 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
643 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
646 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
649 static void trimctm (pdf_page
*page
, int pindex
)
652 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
654 if (!pdim
->tctmready
) {
655 if (state
.trimmargins
) {
657 fz_matrix rm
, sm
, tm
, im
, ctm1
;
659 fz_rotate (&rm
, -pdim
->rotate
);
660 fz_scale (&sm
, 1, -1);
661 fz_concat (&ctm
, &rm
, &sm
);
662 realbox
= pdim
->mediabox
;
663 fz_transform_rect (&realbox
, &ctm
);
664 fz_translate (&tm
, -realbox
.x0
, -realbox
.y0
);
665 fz_concat (&ctm1
, &ctm
, &tm
);
666 fz_invert_matrix (&im
, &page
->ctm
);
667 fz_concat (&ctm
, &im
, &ctm1
);
677 static fz_matrix
pagectm (struct page
*page
)
681 if (page
->type
== DPDF
) {
682 trimctm (page
->u
.pdfpage
, page
->pdimno
);
684 &state
.pagedims
[page
->pdimno
].tctm
,
685 &state
.pagedims
[page
->pdimno
].ctm
);
688 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
690 fz_translate (&tm
, -pdim
->mediabox
.x0
, -pdim
->mediabox
.y0
);
691 fz_concat (&ctm
, &tm
, &state
.pagedims
[page
->pdimno
].ctm
);
696 static void *loadpage (int pageno
, int pindex
)
699 struct page
*page
= NULL
;
701 page
= calloc (sizeof (struct page
), 1);
703 err (1, "calloc page %d", pageno
);
706 page
->dlist
= fz_new_display_list (state
.ctx
);
707 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
709 switch (state
.type
) {
711 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
712 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
,
714 page
->freepage
= freepdfpage
;
718 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
719 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
,
721 page
->freepage
= freexpspage
;
725 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
726 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
,
728 page
->freepage
= freecbzpage
;
732 fz_catch (state
.ctx
) {
734 page
->freepage
= freeemptyxxxpage
;
736 fz_free_device (dev
);
738 page
->pdimno
= pindex
;
739 page
->pageno
= pageno
;
740 page
->sgen
= state
.gen
;
741 page
->tgen
= state
.gen
;
742 page
->type
= state
.type
;
747 static struct tile
*alloctile (int h
)
754 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
755 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
756 tile
= calloc (tilesize
, 1);
758 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
760 for (i
= 0; i
< slicecount
; ++i
) {
761 int sh
= MIN (h
, state
.sliceheight
);
762 tile
->slices
[i
].h
= sh
;
763 tile
->slices
[i
].texindex
= -1;
766 tile
->slicecount
= slicecount
;
767 tile
->sliceheight
= state
.sliceheight
;
777 static void obs_fill_image (fz_device
*dev
, fz_image
*image
,
778 const fz_matrix
*ctm
, float alpha
)
780 struct obs
*obs
= dev
->user
;
782 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
784 fz_rect rect
= fz_unit_rect
;
786 fz_transform_rect (&rect
, ctm
);
787 fz_round_rect (&b
, &rect
);
788 fz_intersect_irect (&b
, &obs
->b
);
789 obs
->cured
= b
.x0
== obs
->b
.x0
792 && b
.y1
== obs
->b
.y1
;
796 static int obscured (struct page
*page
, fz_irect bbox
)
803 memset (&dev
, 0, sizeof (dev
));
804 memset (&obs
, 0, sizeof (obs
));
809 dev
.fill_image
= obs_fill_image
;
811 fz_rect_from_irect (&rect
, &bbox
);
812 ctm
= pagectm (page
);
813 fz_run_display_list (page
->dlist
, &dev
, &ctm
, &rect
, NULL
);
816 #define OBSCURED obscured
818 #define OBSCURED(a, b) 0
821 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
,
829 struct pagedim
*pdim
;
831 tile
= alloctile (h
);
832 pdim
= &state
.pagedims
[page
->pdimno
];
837 bbox
.x1
= bbox
.x0
+ w
;
838 bbox
.y1
= bbox
.y0
+ h
;
841 if (state
.pig
->w
== w
843 && state
.pig
->colorspace
== state
.colorspace
) {
844 tile
->pixmap
= state
.pig
;
845 tile
->pixmap
->x
= bbox
.x0
;
846 tile
->pixmap
->y
= bbox
.y0
;
849 fz_drop_pixmap (state
.ctx
, state
.pig
);
856 fz_new_pixmap_with_bbox_and_data (state
.ctx
, state
.colorspace
,
862 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, &bbox
);
868 if (!page
->u
.ptr
|| ((w
< 128 && h
< 128) || !OBSCURED (page
, bbox
))) {
869 clearpixmap (tile
->pixmap
);
871 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
872 ctm
= pagectm (page
);
873 fz_rect_from_irect (&rect
, &bbox
);
874 fz_run_display_list (page
->dlist
, dev
, &ctm
, &rect
, NULL
);
875 fz_free_device (dev
);
880 static void initpdims (void)
883 int pageno
, trim
, show
;
889 if (state
.trimmargins
&& state
.trimcachepath
) {
890 trimf
= fopen (state
.trimcachepath
, "rb");
892 trimf
= fopen (state
.trimcachepath
, "wb");
896 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
901 switch (state
.type
) {
903 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
905 if (state
.trimmargins
) {
910 page
= pdf_load_page (state
.u
.pdf
, pageno
);
911 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
912 trim
= state
.trimanew
|| !obj
;
918 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
919 dev
->hints
|= FZ_IGNORE_SHADE
;
920 fz_invert_matrix (&ctm
, &page
->ctm
);
921 pdf_run_page (state
.u
.pdf
, page
, dev
, &fz_identity
, NULL
);
922 fz_free_device (dev
);
924 rect
.x0
+= state
.trimfuzz
.x0
;
925 rect
.x1
+= state
.trimfuzz
.x1
;
926 rect
.y0
+= state
.trimfuzz
.y0
;
927 rect
.y1
+= state
.trimfuzz
.y1
;
928 fz_transform_rect (&rect
, &ctm
);
929 fz_intersect_rect (&rect
, &page
->mediabox
);
931 if (fz_is_empty_rect (&rect
)) {
932 mediabox
= page
->mediabox
;
938 obj
= pdf_new_array (state
.ctx
, 4);
939 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
940 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
941 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
942 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
943 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
946 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
947 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
948 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
949 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
952 rotate
= page
->rotate
;
953 pdf_free_page (state
.u
.pdf
, page
);
955 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
957 printd ("progress %f Trimming %d",
958 (double) (pageno
+ 1) / state
.pagecount
,
962 fz_catch (state
.ctx
) {
963 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
969 pdf_to_rect (state
.ctx
, pdf_dict_gets (pageobj
, "MediaBox"),
971 if (fz_is_empty_rect (&mediabox
)) {
972 fprintf (stderr
, "cannot find page size for page %d\n",
980 pdf_to_rect (state
.ctx
, pdf_dict_gets (pageobj
, "CropBox"),
982 if (!fz_is_empty_rect (&cropbox
)) {
983 fz_intersect_rect (&mediabox
, &cropbox
);
985 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
995 page
= xps_load_page (state
.u
.xps
, pageno
);
996 xps_bound_page (state
.u
.xps
, page
, &mediabox
);
998 if (state
.trimmargins
) {
1002 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
1003 dev
->hints
|= FZ_IGNORE_SHADE
;
1004 xps_run_page (state
.u
.xps
, page
, dev
,
1005 &fz_identity
, NULL
);
1006 fz_free_device (dev
);
1008 rect
.x0
+= state
.trimfuzz
.x0
;
1009 rect
.x1
+= state
.trimfuzz
.x1
;
1010 rect
.y0
+= state
.trimfuzz
.y0
;
1011 rect
.y1
+= state
.trimfuzz
.y1
;
1012 fz_intersect_rect (&rect
, &mediabox
);
1014 if (!fz_is_empty_rect (&rect
)) {
1018 xps_free_page (state
.u
.xps
, page
);
1019 printd ("progress %f loading %d",
1020 (double) (pageno
+ 1) / state
.pagecount
,
1023 fz_catch (state
.ctx
) {
1031 if (state
.trimmargins
&& trimw
) {
1034 fz_try (state
.ctx
) {
1035 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1036 cbz_bound_page (state
.u
.cbz
, page
, &mediabox
);
1037 cbz_free_page (state
.u
.cbz
, page
);
1038 printd ("progress %f Trimming %d",
1039 (double) (pageno
+ 1) / state
.pagecount
,
1042 fz_catch (state
.ctx
) {
1043 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1050 int n
= fwrite (&mediabox
, sizeof (mediabox
), 1, trimf
);
1052 err (1, "fwrite trim mediabox");
1058 int n
= fread (&mediabox
, sizeof (mediabox
), 1, trimf
);
1060 err (1, "fread trim mediabox");
1064 mediabox
.x0
= mediabox
.y0
= 0;
1073 ARSERT (0 && state
.type
);
1076 if (state
.pagedimcount
== 0
1077 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
1078 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
1081 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
1082 state
.pagedims
= realloc (state
.pagedims
, size
);
1083 if (!state
.pagedims
) {
1084 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
1085 size
, state
.pagedimcount
+ 1);
1088 p
= &state
.pagedims
[state
.pagedimcount
++];
1090 p
->mediabox
= mediabox
;
1095 if (state
.trimmargins
) {
1096 printd ("progress 1 Trimmed %d pages in %f seconds",
1097 state
.pagecount
, end
- start
);
1100 printd ("vmsg Processed %d pages in %f seconds",
1101 state
.pagecount
, end
- start
);
1105 if (fclose (trimf
)) {
1111 static void layout (void)
1116 double zoom
, w
, maxw
= 0;
1117 struct pagedim
*p
= state
.pagedims
;
1119 if (state
.proportional
) {
1120 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1123 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1125 fz_transform_rect (&box
, &rm
);
1126 w
= box
.x1
- box
.x0
;
1127 maxw
= MAX (w
, maxw
);
1132 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1134 fz_matrix tm
, sm
, rm
;
1136 fz_rotate (&ctm
, state
.rotate
);
1137 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1139 fz_transform_rect (&box
, &rm
);
1140 w
= box
.x1
- box
.x0
;
1142 if (state
.proportional
) {
1143 double scale
= w
/ maxw
;
1144 zoom
= (state
.w
/ w
) * scale
;
1150 fz_scale (&p
->zoomctm
, zoom
, zoom
);
1151 fz_concat (&ctm
, &p
->zoomctm
, &ctm
);
1153 fz_rotate (&rm
, p
->rotate
);
1154 p
->pagebox
= p
->mediabox
;
1155 fz_transform_rect (&p
->pagebox
, &rm
);
1156 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1157 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1161 fz_transform_rect (&rect
, &ctm
);
1162 fz_round_rect (&p
->bounds
, &rect
);
1164 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
1167 fz_translate (&tm
, 0, -p
->mediabox
.y1
);
1168 fz_scale (&sm
, zoom
, -zoom
);
1169 fz_concat (&ctm
, &tm
, &sm
);
1170 fz_concat (&p
->lctm
, &ctm
, &rm
);
1175 while (p
-- != state
.pagedims
) {
1176 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1177 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1178 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1179 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1183 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1188 struct anchor
{ int n
; int x
; int y
; int w
; int h
; }
1189 desttoanchor (fz_link_dest
*dest
)
1193 struct pagedim
*pdim
= state
.pagedims
;
1198 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1199 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1201 pdim
= &state
.pagedims
[i
];
1203 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1205 if (dest
->ld
.gotor
.flags
& fz_link_flag_l_valid
)
1206 p
.x
= dest
->ld
.gotor
.lt
.x
;
1207 p
.y
= dest
->ld
.gotor
.lt
.y
;
1208 fz_transform_point (&p
, &pdim
->lctm
);
1212 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1213 double x0
, x1
, y0
, y1
;
1215 x0
= MIN (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1216 x1
= MAX (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1218 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1219 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1221 a
.n
= dest
->ld
.gotor
.page
;
1226 static void recurse_outline (fz_outline
*outline
, int level
)
1229 struct anchor a
= desttoanchor (&outline
->dest
);
1232 printd ("o %d %d %d %d %s",
1233 level
, a
.n
, a
.y
, a
.h
, outline
->title
);
1235 if (outline
->down
) {
1236 recurse_outline (outline
->down
, level
+ 1);
1238 outline
= outline
->next
;
1242 static void process_outline (void)
1244 fz_outline
*outline
;
1246 if (!state
.needoutline
) return;
1248 state
.needoutline
= 0;
1249 switch (state
.type
) {
1251 outline
= pdf_load_outline (state
.u
.pdf
);
1254 outline
= xps_load_outline (state
.u
.xps
);
1261 recurse_outline (outline
, 0);
1262 fz_free_outline (state
.ctx
, outline
);
1266 static char *strofspan (fz_text_span
*span
)
1271 size_t size
= 0, cap
= 80;
1273 p
= malloc (cap
+ 1);
1274 if (!p
) return NULL
;
1276 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1277 int n
= fz_runetochar (utf8
, ch
->c
);
1278 if (size
+ n
> cap
) {
1280 p
= realloc (p
, cap
+ 1);
1281 if (!p
) return NULL
;
1284 memcpy (p
+ size
, utf8
, n
);
1291 static int matchspan (regex_t
*re
, fz_text_span
*span
, fz_matrix ctm
,
1292 int stop
, int pageno
, double start
)
1299 fz_point p1
, p2
, p3
, p4
;
1301 p
= strofspan (span
);
1304 ret
= regexec (re
, p
, 1, &rm
, 0);
1307 if (ret
!= REG_NOMATCH
) {
1310 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1311 printd ("msg regexec error `%.*s'",
1312 (int) size
, errbuf
);
1319 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1320 c
+= fz_runelen (span
->text
[a
].c
);
1322 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1323 c
+= fz_runelen (span
->text
[b
].c
);
1326 if (fz_runelen (span
->text
[b
].c
) > 1) {
1329 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1330 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1342 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1349 printd ("progress 1 found at %d `%.*s' in %f sec",
1350 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1354 printd ("match %d %d %f %f %f %f %f %f %f %f",
1366 static int compareblocks (const void *l
, const void *r
)
1368 fz_text_block
const *ls
= l
;
1369 fz_text_block
const* rs
= r
;
1370 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1373 /* wishful thinking function */
1374 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1379 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1381 fz_text_sheet
*sheet
;
1382 struct pagedim
*pdim
, *pdimprev
;
1383 int stop
= 0, niters
= 0;
1386 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1390 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1391 if (niters
++ == 5) {
1394 printd ("progress 1 attention requested aborting search at %d",
1399 printd ("progress %f searching in page %d",
1400 (double) (pageno
+ 1) / state
.pagecount
,
1405 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1406 pdim
= &state
.pagedims
[i
];
1407 if (pdim
->pageno
== pageno
) {
1410 if (pdim
->pageno
> pageno
) {
1419 sheet
= fz_new_text_sheet (state
.ctx
);
1420 text
= fz_new_text_page (state
.ctx
, &fz_infinite_rect
);
1421 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1423 switch (state
.type
) {
1426 fz_try (state
.ctx
) {
1427 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1428 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1429 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->zoomctm
);
1430 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, &ctm
, NULL
);
1432 fz_catch (state
.ctx
) {
1433 fz_free_device (tdev
);
1440 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1441 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, &pdim
->ctm
, NULL
);
1445 ARSERT (0 && state
.type
);
1448 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1449 fz_free_device (tdev
);
1451 for (j
= 0; j
< text
->len
; ++j
) {
1453 fz_text_block
*block
;
1455 block
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1457 for (k
= 0; k
< block
->len
; ++k
) {
1462 line
= &block
->lines
[k
];
1463 if (line
->bbox
.y0
< y
+ 1) continue;
1466 line
= &block
->lines
[block
->len
- 1 - k
];
1467 if (line
->bbox
.y0
> y
- 1) continue;
1470 for (span
= line
->spans
;
1471 span
< line
->spans
+ line
->len
;
1474 switch (matchspan (re
, span
, ctm
, stop
, pageno
, start
)) {
1476 case 1: stop
= 1; break;
1477 case -1: stop
= 1; goto endloop
;
1492 fz_free_text_page (state
.ctx
, text
);
1493 fz_free_text_sheet (state
.ctx
, sheet
);
1495 state
.freepage (u
.ptr
);
1500 printd ("progress 1 no matches %f sec", end
- start
);
1502 printd ("clearrects");
1505 static void set_tex_params (int colorspace
)
1512 switch (colorspace
) {
1514 state
.texiform
= GL_RGBA8
;
1515 state
.texform
= GL_RGBA
;
1516 state
.texty
= GL_UNSIGNED_BYTE
;
1517 state
.colorspace
= fz_device_rgb
;
1520 state
.texiform
= GL_RGBA8
;
1521 state
.texform
= GL_BGRA
;
1522 state
.texty
= endianness
.s
> 1
1523 ? GL_UNSIGNED_INT_8_8_8_8
1524 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1525 state
.colorspace
= fz_device_bgr
;
1528 state
.texiform
= GL_LUMINANCE_ALPHA
;
1529 state
.texform
= GL_LUMINANCE_ALPHA
;
1530 state
.texty
= GL_UNSIGNED_BYTE
;
1531 state
.colorspace
= fz_device_gray
;
1534 errx (1, "invalid colorspce %d", colorspace
);
1538 static void realloctexts (int texcount
)
1542 if (texcount
== state
.texcount
) return;
1544 if (texcount
< state
.texcount
) {
1545 glDeleteTextures (state
.texcount
- texcount
,
1546 state
.texids
+ texcount
);
1549 size
= texcount
* sizeof (*state
.texids
);
1550 state
.texids
= realloc (state
.texids
, size
);
1551 if (!state
.texids
) {
1552 err (1, "realloc texids %" FMT_s
, size
);
1555 size
= texcount
* sizeof (*state
.texowners
);
1556 state
.texowners
= realloc (state
.texowners
, size
);
1557 if (!state
.texowners
) {
1558 err (1, "realloc texowners %" FMT_s
, size
);
1560 if (texcount
> state
.texcount
) {
1563 glGenTextures (texcount
- state
.texcount
,
1564 state
.texids
+ state
.texcount
);
1565 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1566 state
.texowners
[i
].w
= -1;
1567 state
.texowners
[i
].slice
= NULL
;
1570 state
.texcount
= texcount
;
1574 static char *mbtoutf8 (char *s
)
1580 len
= mbstowcs (NULL
, s
, strlen (s
));
1585 if (len
== (size_t) -1) {
1590 tmp
= malloc (len
* sizeof (wchar_t));
1595 ret
= mbstowcs (tmp
, s
, len
);
1596 if (ret
== (size_t) -1) {
1602 for (i
= 0; i
< ret
; ++i
) {
1603 len
+= fz_runelen (tmp
[i
]);
1606 p
= r
= malloc (len
+ 1);
1612 for (i
= 0; i
< ret
; ++i
) {
1613 p
+= fz_runetochar (p
, tmp
[i
]);
1620 CAMLprim value
ml_mbtoutf8 (value s_v
)
1626 s
= String_val (s_v
);
1632 ret_v
= caml_copy_string (r
);
1638 static void * mainloop (void *unused
)
1641 int len
, ret
, oldlen
= 0;
1646 errx (1, "readlen returned 0");
1649 if (oldlen
< len
+ 1) {
1650 p
= realloc (p
, len
+ 1);
1652 err (1, "realloc %d failed", len
+ 1);
1659 if (!strncmp ("open", p
, 4)) {
1666 ret
= sscanf (p
+ 5, " %d %n", &wthack
, &off
);
1668 errx (1, "malformed open `%.*s' ret=%d", len
, p
, ret
);
1671 filename
= p
+ 5 + off
;
1672 filenamelen
= strlen (filename
);
1673 password
= filename
+ filenamelen
+ 1;
1676 openxref (filename
, password
);
1682 utf8filename
= mbtoutf8 (filename
);
1683 printd ("msg Opened %s (press h/F1 to get help)", utf8filename
);
1684 if (utf8filename
!= filename
) {
1685 free (utf8filename
);
1688 state
.needoutline
= 1;
1690 else if (!strncmp ("cs", p
, 2)) {
1693 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1695 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1698 set_tex_params (colorspace
);
1699 for (i
= 0; i
< state
.texcount
; ++i
) {
1700 state
.texowners
[i
].w
= -1;
1701 state
.texowners
[i
].slice
= NULL
;
1705 else if (!strncmp ("freepage", p
, 8)) {
1708 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1710 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1714 else if (!strncmp ("freetile", p
, 8)) {
1717 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1719 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1723 else if (!strncmp ("search", p
, 6)) {
1724 int icase
, pageno
, y
, ret
, len2
, forward
;
1728 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1729 &icase
, &pageno
, &y
, &forward
, &len2
);
1731 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1734 pattern
= p
+ 6 + len2
;
1735 ret
= regcomp (&re
, pattern
,
1736 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1741 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1742 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1745 search (&re
, pageno
, y
, forward
);
1749 else if (!strncmp ("geometry", p
, 8)) {
1753 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1755 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1763 for (i
= 0; i
< state
.texcount
; ++i
) {
1764 state
.texowners
[i
].slice
= NULL
;
1771 unlock ("geometry");
1772 printd ("continue %d", state
.pagecount
);
1774 else if (!strncmp ("reqlayout", p
, 9)) {
1776 int rotate
, proportional
, off
;
1779 ret
= sscanf (p
+ 9, " %d %d %n", &rotate
, &proportional
, &off
);
1781 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1784 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1787 state
.rotate
= rotate
;
1788 state
.proportional
= proportional
;
1792 nameddest
= p
+ 9 + off
;
1793 if (state
.type
== DPDF
&& nameddest
&& *nameddest
) {
1796 pdf_obj
*needle
, *obj
;
1798 needle
= pdf_new_string (state
.ctx
, nameddest
,
1799 strlen (nameddest
));
1800 obj
= pdf_lookup_dest (state
.u
.pdf
, needle
);
1802 dest
= pdf_parse_link_dest (state
.u
.pdf
, obj
);
1804 a
= desttoanchor (&dest
);
1806 printd ("a %d %d %d", a
.n
, a
.x
, a
.y
);
1809 printd ("emsg failed to parse destination `%s'\n",
1814 printd ("emsg destination `%s' not found\n",
1817 pdf_drop_obj (needle
);
1821 unlock ("reqlayout");
1822 printd ("continue %d", state
.pagecount
);
1824 else if (!strncmp ("page", p
, 4)) {
1827 int pageno
, pindex
, ret
;
1829 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1831 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1836 page
= loadpage (pageno
, pindex
);
1840 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1842 else if (!strncmp ("tile", p
, 4)) {
1843 int x
, y
, w
, h
, ret
;
1849 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d %" FMT_ptr
,
1850 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
, &data
);
1852 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1857 tile
= rendertile (page
, x
, y
, w
, h
, data
);
1861 printd ("tile %d %d %" FMT_ptr
" %u %f",
1863 FMT_ptr_cast2 (tile
),
1864 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1867 else if (!strncmp ("settrim", p
, 7)) {
1871 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1872 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1874 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1878 state
.trimmargins
= trimmargins
;
1879 state
.needoutline
= 1;
1880 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1882 state
.trimfuzz
= fuzz
;
1884 state
.pagedimcount
= 0;
1885 free (state
.pagedims
);
1886 state
.pagedims
= NULL
;
1891 printd ("continue %d", state
.pagecount
);
1893 else if (!strncmp ("sliceh", p
, 6)) {
1896 ret
= sscanf (p
+ 6, " %d", &h
);
1898 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1900 if (h
!= state
.sliceheight
) {
1903 state
.sliceheight
= h
;
1904 for (i
= 0; i
< state
.texcount
; ++i
) {
1905 state
.texowners
[i
].w
= -1;
1906 state
.texowners
[i
].h
= -1;
1907 state
.texowners
[i
].slice
= NULL
;
1911 else if (!strncmp ("interrupt", p
, 9)) {
1912 printd ("vmsg interrupted");
1915 errx (1, "unknown command %.*s", len
, p
);
1921 CAMLprim value
ml_realloctexts (value texcount_v
)
1923 CAMLparam1 (texcount_v
);
1926 if (trylock ("ml_realloctexts")) {
1930 realloctexts (Int_val (texcount_v
));
1932 unlock ("ml_realloctexts");
1935 CAMLreturn (Val_bool (ok
));
1938 static void showsel (struct page
*page
, int ox
, int oy
)
1945 fz_text_block
*block
;
1946 struct mark first
, last
;
1948 first
= page
->fmark
;
1951 if (!first
.span
|| !last
.span
) return;
1953 glEnable (GL_BLEND
);
1954 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1955 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1957 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1958 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1959 for (block
= page
->text
->blocks
;
1960 block
< page
->text
->blocks
+ page
->text
->len
;
1962 for (line
= block
->lines
;
1963 line
< block
->lines
+ block
->len
;
1965 rect
= fz_empty_rect
;
1966 for (span
= line
->spans
;
1967 span
< line
->spans
+ line
->len
;
1971 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1976 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1978 j
= MIN (first
.i
, last
.i
);
1979 k
= MAX (first
.i
, last
.i
);
1981 else if (span
== first
.span
) {
1985 else if (span
== last
.span
) {
1991 for (i
= j
; i
<= k
; ++i
) {
1992 fz_union_rect (&rect
, &span
->text
[i
].bbox
);
1994 fz_round_rect (&bbox
, &rect
);
1995 lprintf ("%d %d %d %d oy=%d ox=%d\n",
2002 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
2003 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
2004 if (span
== last
.span
) {
2012 glDisable (GL_BLEND
);
2017 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
2019 fz_matrix ctm
, tm
, pm
;
2020 fz_link
*link
, *links
;
2022 switch (page
->type
) {
2024 links
= page
->u
.pdfpage
->links
;
2028 links
= page
->u
.xpspage
->links
;
2035 glEnable (GL_TEXTURE_1D
);
2036 glEnable (GL_BLEND
);
2037 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
2039 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2040 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2041 fz_translate (&tm
, xoff
, yoff
);
2042 pm
= pagectm (page
);
2043 fz_concat (&ctm
, &pm
, &tm
);
2046 for (link
= links
; link
; link
= link
->next
) {
2047 fz_point p1
, p2
, p3
, p4
;
2049 p1
.x
= link
->rect
.x0
;
2050 p1
.y
= link
->rect
.y0
;
2052 p2
.x
= link
->rect
.x1
;
2053 p2
.y
= link
->rect
.y0
;
2055 p3
.x
= link
->rect
.x1
;
2056 p3
.y
= link
->rect
.y1
;
2058 p4
.x
= link
->rect
.x0
;
2059 p4
.y
= link
->rect
.y1
;
2061 fz_transform_point (&p1
, &ctm
);
2062 fz_transform_point (&p2
, &ctm
);
2063 fz_transform_point (&p3
, &ctm
);
2064 fz_transform_point (&p4
, &ctm
);
2066 switch (link
->dest
.kind
) {
2067 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
2068 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
2069 default: glColor3ub (0, 0, 0); break;
2077 t
= sqrtf (w
*w
+ h
*h
);
2081 s
= sqrtf (w
*w
+ h
*h
);
2087 glVertex2f (p1
.x
, p1
.y
);
2089 glVertex2f (p2
.x
, p2
.y
);
2092 glVertex2f (p2
.x
, p2
.y
);
2094 glVertex2f (p3
.x
, p3
.y
);
2097 glVertex2f (p3
.x
, p3
.y
);
2099 glVertex2f (p4
.x
, p4
.y
);
2102 glVertex2f (p4
.x
, p4
.y
);
2104 glVertex2f (p1
.x
, p1
.y
);
2109 glDisable (GL_BLEND
);
2110 glDisable (GL_TEXTURE_1D
);
2113 static int compareslinks (const void *l
, const void *r
)
2115 struct slink
const *ls
= l
;
2116 struct slink
const *rs
= r
;
2117 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
2118 return rs
->bbox
.x0
- rs
->bbox
.x0
;
2120 return ls
->bbox
.y0
- rs
->bbox
.y0
;
2123 static void droptext (struct page
*page
)
2126 fz_free_text_page (state
.ctx
, page
->text
);
2129 page
->fmark
.span
= NULL
;
2130 page
->lmark
.span
= NULL
;
2134 fz_free_text_sheet (state
.ctx
, page
->sheet
);
2138 static void dropslinks (struct page
*page
)
2141 free (page
->slinks
);
2142 page
->slinks
= NULL
;
2143 page
->slinkcount
= 0;
2147 static void ensureslinks (struct page
*page
)
2151 size_t slinksize
= sizeof (*page
->slinks
);
2152 fz_link
*link
, *links
;
2154 if (state
.gen
!= page
->sgen
) {
2156 page
->sgen
= state
.gen
;
2158 if (page
->slinks
) return;
2160 switch (page
->type
) {
2162 links
= page
->u
.pdfpage
->links
;
2163 trimctm (page
->u
.pdfpage
, page
->pdimno
);
2165 &state
.pagedims
[page
->pdimno
].tctm
,
2166 &state
.pagedims
[page
->pdimno
].ctm
);
2170 links
= page
->u
.xpspage
->links
;
2171 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
2178 for (link
= links
; link
; link
= link
->next
) {
2182 page
->slinkcount
= count
;
2183 page
->slinks
= calloc (count
, slinksize
);
2184 if (!page
->slinks
) {
2185 err (1, "realloc slinks %d", count
);
2188 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
2192 fz_transform_rect (&rect
, &ctm
);
2193 page
->slinks
[i
].link
= link
;
2194 fz_round_rect (&page
->slinks
[i
].bbox
, &rect
);
2196 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
2200 /* slightly tweaked fmt_ulong by D.J. Bernstein */
2201 static void fmt_linkn (char *s
, unsigned int u
)
2203 unsigned int len
; unsigned int q
;
2204 int zma
= 'z' - 'a' + 1;
2206 while (q
> zma
- 1) { ++len
; q
/= zma
; }
2209 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
2210 /* handles u == 0 */
2215 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
2216 int noff
, char *targ
, int tlen
, int hfsize
)
2220 struct slink
*slink
;
2221 double x0
, y0
, x1
, y1
, w
;
2223 ensureslinks (page
);
2224 glColor3ub (0xc3, 0xb0, 0x91);
2225 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2226 fmt_linkn (buf
, i
+ noff
);
2227 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2228 slink
= &page
->slinks
[i
];
2230 x0
= slink
->bbox
.x0
+ xoff
- 5;
2231 y1
= slink
->bbox
.y0
+ yoff
- 5;
2232 y0
= y1
+ 10 + hfsize
;
2233 w
= measure_string (state
.face
, hfsize
, buf
);
2235 glRectd (x0
, y0
, x1
, y1
);
2239 glEnable (GL_BLEND
);
2240 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2241 glEnable (GL_TEXTURE_2D
);
2242 glColor3ub (0, 0, 0);
2243 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2244 fmt_linkn (buf
, i
+ noff
);
2245 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2246 slink
= &page
->slinks
[i
];
2248 x0
= slink
->bbox
.x0
+ xoff
;
2249 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
2250 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
2253 glDisable (GL_TEXTURE_2D
);
2254 glDisable (GL_BLEND
);
2258 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
2261 struct slice
*slice1
;
2262 unsigned char *texdata
;
2265 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
2266 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
2268 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
2269 && state
.texowners
[slice
->texindex
].slice
== slice
) {
2270 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
2274 int texindex
= state
.texindex
++ % state
.texcount
;
2276 if (state
.texowners
[texindex
].w
== tile
->w
) {
2277 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2281 state
.texowners
[texindex
].h
= slice
->h
;
2285 state
.texowners
[texindex
].h
= slice
->h
;
2288 state
.texowners
[texindex
].w
= tile
->w
;
2289 state
.texowners
[texindex
].slice
= slice
;
2290 slice
->texindex
= texindex
;
2292 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2294 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
2298 texdata
= tile
->pixmap
->samples
;
2301 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2313 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2325 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
2330 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2332 CAMLparam2 (args_v
, ptr_v
);
2333 int dispx
= Int_val (Field (args_v
, 0));
2334 int dispy
= Int_val (Field (args_v
, 1));
2335 int dispw
= Int_val (Field (args_v
, 2));
2336 int disph
= Int_val (Field (args_v
, 3));
2337 int tilex
= Int_val (Field (args_v
, 4));
2338 int tiley
= Int_val (Field (args_v
, 5));
2339 char *s
= String_val (ptr_v
);
2340 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2342 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2344 int slicey
, firstslice
;
2345 struct slice
*slice
;
2347 firstslice
= tiley
/ tile
->sliceheight
;
2348 slice
= &tile
->slices
[firstslice
];
2349 slicey
= tiley
% tile
->sliceheight
;
2354 dh
= slice
->h
- slicey
;
2355 dh
= MIN (disph
, dh
);
2356 uploadslice (tile
, slice
);
2360 glTexCoord2i (tilex
, slicey
);
2361 glVertex2i (dispx
, dispy
);
2363 glTexCoord2i (tilex
+dispw
, slicey
);
2364 glVertex2i (dispx
+dispw
, dispy
);
2366 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
2367 glVertex2i (dispx
+dispw
, dispy
+dh
);
2369 glTexCoord2i (tilex
, slicey
+dh
);
2370 glVertex2i (dispx
, dispy
+dh
);
2377 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2381 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2382 CAMLreturn (Val_unit
);
2385 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2386 value xoff_v
, value yoff_v
,
2389 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2390 int xoff
= Int_val (xoff_v
);
2391 int yoff
= Int_val (yoff_v
);
2392 int noff
= Int_val (Field (li_v
, 0));
2393 char *targ
= String_val (Field (li_v
, 1));
2394 int tlen
= caml_string_length (Field (li_v
, 1));
2395 int hfsize
= Int_val (Field (li_v
, 2));
2396 char *s
= String_val (ptr_v
);
2397 int hlmask
= Int_val (hlinks_v
);
2398 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2401 /* deal with loadpage failed pages */
2405 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2406 if (trylock ("ml_postprocess")) {
2411 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2412 noff
= page
->slinkcount
;
2414 showsel (page
, xoff
, yoff
);
2415 unlock ("ml_postprocess");
2418 CAMLreturn (Val_int (noff
));
2421 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2425 const fz_matrix
*tctm
;
2426 fz_link
*link
, *links
;
2428 switch (page
->type
) {
2430 trimctm (page
->u
.pdfpage
, page
->pdimno
);
2431 tctm
= &state
.pagedims
[page
->pdimno
].tctm
;
2432 links
= page
->u
.pdfpage
->links
;
2436 tctm
= &fz_identity
;
2437 links
= page
->u
.xpspage
->links
;
2446 fz_concat (&ctm
, tctm
, &state
.pagedims
[page
->pdimno
].ctm
);
2447 fz_invert_matrix (&ctm
, &ctm
);
2448 fz_transform_point (&p
, &ctm
);
2450 for (link
= links
; link
; link
= link
->next
) {
2451 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2452 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2460 static void ensuretext (struct page
*page
)
2462 if (state
.gen
!= page
->tgen
) {
2464 page
->tgen
= state
.gen
;
2470 page
->text
= fz_new_text_page (state
.ctx
, &fz_infinite_rect
);
2471 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2472 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2473 ctm
= pagectm (page
);
2474 fz_run_display_list (page
->dlist
, tdev
, &ctm
, &fz_infinite_rect
, NULL
);
2475 qsort (page
->text
->blocks
, page
->text
->len
,
2476 sizeof (*page
->text
->blocks
), compareblocks
);
2477 fz_free_device (tdev
);
2481 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2483 CAMLparam2 (start_page_v
, dir_v
);
2485 int i
, dir
= Int_val (dir_v
);
2486 int start_page
= Int_val (start_page_v
);
2487 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2489 ret_v
= Val_int (0);
2490 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2494 lock ("ml_findpage_with_links");
2495 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2498 switch (state
.type
) {
2501 pdf_page
*page
= NULL
;
2503 fz_try (state
.ctx
) {
2504 page
= pdf_load_page (state
.u
.pdf
, i
);
2505 found
= !!page
->links
;
2507 fz_catch (state
.ctx
) {
2517 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2518 found
= !!page
->links
;
2524 ARSERT ("invalid document type");
2528 ret_v
= caml_alloc_small (1, 1);
2529 Field (ret_v
, 0) = Val_int (i
);
2534 unlock ("ml_findpage_with_links");
2540 enum { dir_first
, dir_last
};
2541 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2543 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2545 CAMLparam2 (ptr_v
, dir_v
);
2546 CAMLlocal2 (ret_v
, pos_v
);
2548 int dirtag
, i
, slinkindex
;
2549 struct slink
*found
= NULL
,*slink
;
2550 char *s
= String_val (ptr_v
);
2552 page
= parse_pointer ("ml_findlink", s
);
2553 ret_v
= Val_int (0);
2554 if (trylock ("ml_findlink")) {
2558 ensureslinks (page
);
2560 if (Is_block (dir_v
)) {
2561 dirtag
= Tag_val (dir_v
);
2563 case dir_first_visible
:
2565 int x0
, y0
, dir
, first_index
, last_index
;
2567 pos_v
= Field (dir_v
, 0);
2568 x0
= Int_val (Field (pos_v
, 0));
2569 y0
= Int_val (Field (pos_v
, 1));
2570 dir
= Int_val (Field (pos_v
, 2));
2575 last_index
= page
->slinkcount
;
2578 first_index
= page
->slinkcount
- 1;
2582 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2583 slink
= &page
->slinks
[i
];
2584 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2593 slinkindex
= Int_val (Field (dir_v
, 0));
2594 found
= &page
->slinks
[slinkindex
];
2595 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2596 slink
= &page
->slinks
[i
];
2597 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2605 slinkindex
= Int_val (Field (dir_v
, 0));
2606 found
= &page
->slinks
[slinkindex
];
2607 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2608 slink
= &page
->slinks
[i
];
2609 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2617 slinkindex
= Int_val (Field (dir_v
, 0));
2618 found
= &page
->slinks
[slinkindex
];
2619 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2620 slink
= &page
->slinks
[i
];
2621 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2629 slinkindex
= Int_val (Field (dir_v
, 0));
2630 found
= &page
->slinks
[slinkindex
];
2631 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2632 slink
= &page
->slinks
[i
];
2633 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2642 dirtag
= Int_val (dir_v
);
2645 found
= page
->slinks
;
2650 found
= page
->slinks
+ (page
->slinkcount
- 1);
2656 ret_v
= caml_alloc_small (2, 1);
2657 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2660 unlock ("ml_findlink");
2665 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2671 switch (link->dest.kind) { \
2672 case FZ_LINK_GOTO: \
2676 pageno = link->dest.ld.gotor.page; \
2680 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2681 p.y = link->dest.ld.gotor.lt.y; \
2682 fz_transform_point (&p, &pdim->lctm); \
2684 tup_v = caml_alloc_tuple (2); \
2685 ret_v = caml_alloc_small (1, ugoto); \
2686 Field (tup_v, 0) = Val_int (pageno); \
2687 Field (tup_v, 1) = Val_int (p.y); \
2688 Field (ret_v, 0) = tup_v; \
2693 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2694 ret_v = caml_alloc_small (1, uuri); \
2695 Field (ret_v, 0) = str_v; \
2698 case FZ_LINK_LAUNCH: \
2699 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2700 ret_v = caml_alloc_small (1, ulaunch); \
2701 Field (ret_v, 0) = str_v; \
2704 case FZ_LINK_NAMED: \
2705 str_v = caml_copy_string (link->dest.ld.named.named); \
2706 ret_v = caml_alloc_small (1, unamed); \
2707 Field (ret_v, 0) = str_v; \
2710 case FZ_LINK_GOTOR: \
2711 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2712 pageno = link->dest.ld.gotor.page; \
2713 tup_v = caml_alloc_tuple (2); \
2714 ret_v = caml_alloc_small (1, uremote); \
2715 Field (tup_v, 0) = str_v; \
2716 Field (tup_v, 1) = Val_int (pageno); \
2717 Field (ret_v, 0) = tup_v; \
2724 snprintf (buf, sizeof (buf), \
2725 "unhandled link kind %d", link->dest.kind); \
2726 str_v = caml_copy_string (buf); \
2727 ret_v = caml_alloc_small (1, uunexpected); \
2728 Field (ret_v, 0) = str_v; \
2734 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2736 CAMLparam2 (ptr_v
, n_v
);
2737 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2740 struct pagedim
*pdim
;
2741 char *s
= String_val (ptr_v
);
2743 ret_v
= Val_int (0);
2744 if (trylock ("ml_getlink")) {
2748 page
= parse_pointer ("ml_getlink", s
);
2749 ensureslinks (page
);
2750 pdim
= &state
.pagedims
[page
->pdimno
];
2751 link
= page
->slinks
[Int_val (n_v
)].link
;
2754 unlock ("ml_getlink");
2759 CAMLprim value
ml_getlinkcount (value ptr_v
)
2763 char *s
= String_val (ptr_v
);
2765 page
= parse_pointer ("ml_getlinkcount", s
);
2766 CAMLreturn (Val_int (page
->slinkcount
));
2769 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2771 CAMLparam2 (ptr_v
, n_v
);
2774 struct slink
*slink
;
2775 char *s
= String_val (ptr_v
);
2777 page
= parse_pointer ("ml_getlinkrect", s
);
2778 ret_v
= caml_alloc_tuple (4);
2779 if (trylock ("ml_getlinkrect")) {
2780 Field (ret_v
, 0) = Val_int (0);
2781 Field (ret_v
, 1) = Val_int (0);
2782 Field (ret_v
, 2) = Val_int (0);
2783 Field (ret_v
, 3) = Val_int (0);
2786 ensureslinks (page
);
2788 slink
= &page
->slinks
[Int_val (n_v
)];
2789 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2790 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2791 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2792 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2793 unlock ("ml_getlinkrect");
2799 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2801 CAMLparam3 (ptr_v
, x_v
, y_v
);
2802 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2805 char *s
= String_val (ptr_v
);
2806 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2807 struct pagedim
*pdim
;
2809 ret_v
= Val_int (0);
2810 if (trylock ("ml_whatsunder")) {
2814 page
= parse_pointer ("ml_whatsunder", s
);
2815 pdim
= &state
.pagedims
[page
->pdimno
];
2816 x
+= pdim
->bounds
.x0
;
2817 y
+= pdim
->bounds
.y0
;
2818 link
= getlink (page
, x
, y
);
2824 fz_text_block
*block
;
2827 for (block
= page
->text
->blocks
;
2828 block
< page
->text
->blocks
+ page
->text
->len
;
2833 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2836 for (line
= block
->lines
;
2837 line
< block
->lines
+ block
->len
;
2842 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2845 for (span
= line
->spans
;
2846 span
< line
->spans
+ line
->len
;
2851 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2854 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
2857 if (x
>= b
->x0
&& x
<= b
->x1
2858 && y
>= b
->y0
&& y
<= b
->y1
) {
2860 span
->style
->font
&& span
->style
->font
->name
2861 ? span
->style
->font
->name
2862 : "Span has no font name"
2864 FT_FaceRec
*face
= span
->style
->font
->ft_face
;
2865 if (face
&& face
->family_name
) {
2867 char *n1
= face
->family_name
;
2868 size_t l1
= strlen (n1
);
2869 size_t l2
= strlen (n2
);
2871 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2872 s
= malloc (l1
+ l2
+ 2);
2876 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2877 str_v
= caml_copy_string (s
);
2883 str_v
= caml_copy_string (n2
);
2885 ret_v
= caml_alloc_small (1, utext
);
2886 Field (ret_v
, 0) = str_v
;
2895 unlock ("ml_whatsunder");
2901 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2903 CAMLparam2 (ptr_v
, rect_v
);
2906 struct pagedim
*pdim
;
2907 int i
, x0
, x1
, y0
, y1
;
2908 char *s
= String_val (ptr_v
);
2910 fz_text_block
*block
;
2911 fz_text_span
*span
, *fspan
, *lspan
;
2912 fz_text_line
*line
, *fline
= NULL
, *lline
= NULL
;
2914 if (trylock ("ml_seltext")) {
2918 page
= parse_pointer ("ml_seltext", s
);
2921 pdim
= &state
.pagedims
[page
->pdimno
];
2922 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2923 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2924 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2925 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2928 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2929 glColor3ub (128, 128, 128);
2930 glRecti (x0
, y0
, x1
, y1
);
2931 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2934 fspan
= lspan
= NULL
;
2936 for (block
= page
->text
->blocks
;
2937 block
< page
->text
->blocks
+ page
->text
->len
;
2939 for (line
= block
->lines
;
2940 line
< block
->lines
+ block
->len
;
2942 for (span
= line
->spans
;
2943 span
< line
->spans
+ line
->len
;
2945 for (i
= 0; i
< span
->len
; ++i
) {
2946 b
= &span
->text
[i
].bbox
;
2949 if (x0
>= b
->x0
&& x0
<= b
->x1
2950 && y0
>= b
->y0
&& y0
<= b
->y1
) {
2956 if (x1
>= b
->x0
&& x1
<= b
->x1
2957 && y1
>= b
->y0
&& y1
<= b
->y1
) {
2963 if (0 && selected
) {
2964 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2965 glColor3ub (128, 128, 128);
2966 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2967 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2973 if (y1
< y0
|| x1
< x0
) {
2976 if (fspan
== lspan
) {
2981 if (fline
!= lline
) {
3000 page
->fmark
.span
= fspan
;
3003 page
->lmark
.span
= lspan
;
3005 unlock ("ml_seltext");
3008 CAMLreturn (Val_unit
);
3011 static int UNUSED_ATTR
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
3016 for (i
= a
; i
<= b
; ++i
) {
3017 len
= fz_runetochar (buf
, span
->text
[i
].c
);
3018 ret
= fwrite (buf
, len
, 1, f
);
3021 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
3022 len
, ret
, strerror (errno
));
3030 value
ml_popen (value UNUSED_ATTR u1
, value UNUSED_ATTR u2
)
3032 caml_failwith ("ml_popen not implemented under Cygwin");
3035 CAMLprim value
ml_popen (value command_v
, value fds_v
)
3037 CAMLparam2 (command_v
, fds_v
);
3038 CAMLlocal2 (l_v
, tup_v
);
3041 value earg_v
= Nothing
;
3042 posix_spawnattr_t attr
;
3043 posix_spawn_file_actions_t fa
;
3044 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
3046 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
3047 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
3050 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
3051 msg
= "posix_spawnattr_init";
3055 #ifdef POSIX_SPAWN_USEVFORK
3056 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
3057 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
3062 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
3065 tup_v
= Field (l_v
, 0);
3066 fd1
= Int_val (Field (tup_v
, 0));
3067 fd2
= Int_val (Field (tup_v
, 1));
3069 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
3070 msg
= "posix_spawn_file_actions_addclose";
3076 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
3077 msg
= "posix_spawn_file_actions_adddup2";
3084 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
3085 msg
= "posix_spawn";
3090 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
3091 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
3095 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
3096 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
3101 unix_error (ret
, msg
, earg_v
);
3103 CAMLreturn (Val_unit
);
3107 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
3115 fz_text_block
*block
;
3116 int fd
= Int_val (fd_v
);
3117 char *s
= String_val (ptr_v
);
3119 if (trylock ("ml_copysel")) {
3123 page
= parse_pointer ("ml_sopysel", s
);
3125 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
3126 fprintf (stderr
, "nothing to copy\n");
3130 f
= fdopen (fd
, "w");
3132 fprintf (stderr
, "failed to fopen sel pipe: %s\n",
3137 for (block
= page
->text
->blocks
;
3138 block
< page
->text
->blocks
+ page
->text
->len
;
3140 for (line
= block
->lines
;
3141 line
< block
->lines
+ block
->len
;
3143 for (span
= line
->spans
;
3144 span
< line
->spans
+ line
->len
;
3148 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
3149 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
3150 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
3153 if (pipespan (f
, span
, a
, b
)) {
3156 if (span
== line
->spans
+ line
->len
- 1) {
3157 if (putc ('\n', f
) == EOF
) {
3159 "failed break line on sel pipe: %s\n",
3164 if (span
== page
->lmark
.span
) {
3172 page
->lmark
.span
= NULL
;
3173 page
->fmark
.span
= NULL
;
3177 int ret
= fclose (f
);
3180 if (errno
!= ECHILD
) {
3181 fprintf (stderr
, "failed to close sel pipe: %s\n",
3187 unlock ("ml_copysel");
3192 fprintf (stderr
, "failed to close sel pipe: %s\n",
3196 CAMLreturn (Val_unit
);
3199 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
3201 CAMLparam1 (pagedimno_v
);
3203 int pagedimno
= Int_val (pagedimno_v
);
3206 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3207 if (trylock ("ml_getpdimrect")) {
3208 box
= fz_empty_rect
;
3211 box
= state
.pagedims
[pagedimno
].mediabox
;
3212 unlock ("ml_getpdimrect");
3215 Store_double_field (ret_v
, 0, box
.x0
);
3216 Store_double_field (ret_v
, 1, box
.x1
);
3217 Store_double_field (ret_v
, 2, box
.y0
);
3218 Store_double_field (ret_v
, 3, box
.y1
);
3223 static double getmaxw (void)
3229 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3232 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
3233 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
3236 maxw
= MAX (w
, maxw
);
3241 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
3242 value dw_v
, value cols_v
)
3244 CAMLparam3 (winw_v
, winh_v
, dw_v
);
3248 double maxw
= 0.0, maxh
= 0.0;
3250 double winw
= Int_val (winw_v
);
3251 double winh
= Int_val (winh_v
);
3252 double dw
= Int_val (dw_v
);
3253 double cols
= Int_val (cols_v
);
3254 double pw
= 1.0, ph
= 1.0, aspect
;
3256 if (trylock ("ml_zoom_for_height")) {
3260 if (state
.proportional
) {
3261 maxw
= getmaxw () / cols
;
3264 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3267 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
3269 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
3271 fz_transform_rect (&rect
, &rm
);
3272 x0
= MIN (rect
.x0
, rect
.x1
);
3273 x1
= MAX (rect
.x0
, rect
.x1
);
3274 y0
= MIN (rect
.y0
, rect
.y1
);
3275 y1
= MAX (rect
.y0
, rect
.y1
);
3277 w
= (x1
- x0
) / cols
;
3280 if (state
.proportional
) {
3282 scaledh
= h
* scale
;
3289 if (scaledh
> maxh
) {
3297 zoom
= (winh
* aspect
+ dw
) / winw
;
3299 unlock ("ml_zoom_for_height");
3301 ret_v
= caml_copy_double (zoom
);
3305 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3307 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3309 int pt
= Int_val(pt_v
);
3310 int x
= Int_val (x_v
);
3311 int y
= Int_val (y_v
);
3314 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3315 ret_v
= caml_copy_double (w
);
3319 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3321 CAMLparam2 (pt_v
, string_v
);
3323 int pt
= Int_val (pt_v
);
3326 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3327 ret_v
= caml_copy_double (w
);
3331 CAMLprim value
ml_getpagebox (value opaque_v
)
3333 CAMLparam1 (opaque_v
);
3339 char *s
= String_val (opaque_v
);
3340 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3342 ret_v
= caml_alloc_tuple (4);
3343 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
3344 dev
->hints
|= FZ_IGNORE_SHADE
;
3346 switch (page
->type
) {
3348 ctm
= pagectm (page
);
3349 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, &ctm
, NULL
);
3353 ctm
= pagectm (page
);
3354 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, &ctm
, NULL
);
3358 rect
= fz_infinite_rect
;
3362 fz_free_device (dev
);
3363 fz_round_rect (&bbox
, &rect
);
3364 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3365 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3366 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3367 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3372 CAMLprim value
ml_setaalevel (value level_v
)
3374 CAMLparam1 (level_v
);
3376 state
.aalevel
= Int_val (level_v
);
3377 CAMLreturn (Val_unit
);
3381 #include <X11/Xlib.h>
3387 GLXDrawable drawable
;
3390 #include "keysym2ucs.c"
3392 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3394 CAMLparam1 (keysym_v
);
3396 KeySym keysym
= Int_val (keysym_v
);
3401 rune
= keysym2ucs (keysym
);
3402 len
= fz_runetochar (buf
, rune
);
3404 str_v
= caml_copy_string (buf
);
3408 CAMLprim value
ml_glx (value win_v
)
3411 XVisualInfo
*visual
;
3412 int screen
, wid
= Int_val (win_v
);
3413 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3415 glx
.dpy
= XOpenDisplay (NULL
);
3417 caml_failwith ("XOpenDisplay");
3420 screen
= DefaultScreen (glx
.dpy
);
3421 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
3423 XCloseDisplay (glx
.dpy
);
3425 caml_failwith ("glXChooseVisual");
3428 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
3431 XCloseDisplay (glx
.dpy
);
3433 caml_failwith ("glXCreateContext");
3436 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
3437 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3438 XCloseDisplay (glx
.dpy
);
3441 caml_failwith ("glXMakeCurrent");
3444 CAMLreturn (Val_unit
);
3447 CAMLprim value
ml_swapb (value unit_v
)
3449 CAMLparam1 (unit_v
);
3450 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
3451 CAMLreturn (Val_unit
);
3454 CAMLprim value
ml_glxsync (value unit_v
)
3456 CAMLparam1 (unit_v
);
3457 if (glx
.dpy
&& glx
.ctx
) {
3461 CAMLreturn (Val_unit
);
3464 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
3465 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
3467 CAMLprim value
ml_platform (value unit_v
)
3469 CAMLparam1 (unit_v
);
3470 int platid
= piunknown
;
3472 #if defined __linux__
3474 #elif defined __CYGWIN__
3476 #elif defined __DragonFly__
3477 platid
= pidragonflybsd
;
3478 #elif defined __FreeBSD__
3480 #elif defined __OpenBSD__
3482 #elif defined __NetBSD__
3484 #elif defined __sun__
3486 #elif defined __APPLE__
3489 CAMLreturn (Val_int (platid
));
3492 CAMLprim value
ml_cloexec (value fd_v
)
3495 int fd
= Int_val (fd_v
);
3497 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3498 uerror ("fcntl", Nothing
);
3500 CAMLreturn (Val_unit
);
3503 CAMLprim value
ml_getpbo (value w_v
, value h_v
, value cs_v
)
3505 CAMLparam2 (w_v
, h_v
);
3508 int w
= Int_val (w_v
);
3509 int h
= Int_val (h_v
);
3510 int cs
= Int_val (cs_v
);
3512 if (state
.pbo_usable
) {
3513 pbo
= calloc (sizeof (*pbo
), 1);
3515 err (1, "calloc pbo");
3527 errx (1, "ml_getpbo: invalid colorspace %d", cs
);
3530 state
.glGenBuffersARB (1, &pbo
->id
);
3531 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->id
);
3532 state
.glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->size
,
3533 NULL
, GL_STREAM_DRAW
);
3534 pbo
->ptr
= state
.glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
,
3536 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3538 fprintf (stderr
, "glMapBufferARB failed: %#x\n", glGetError ());
3539 state
.glDeleteBuffersARB (1, &pbo
->id
);
3541 ret_v
= caml_copy_string ("0");
3547 res
= snprintf (NULL
, 0, "%" FMT_ptr
, pbo
);
3549 err (1, "snprintf %" FMT_ptr
" failed", pbo
);
3553 err (1, "malloc %d bytes failed", res
+1);
3555 res
= sprintf (s
, "%" FMT_ptr
, pbo
);
3557 err (1, "sprintf %" FMT_ptr
" failed", pbo
);
3559 ret_v
= caml_copy_string (s
);
3564 ret_v
= caml_copy_string ("0");
3569 CAMLprim value
ml_freepbo (value s_v
)
3572 char *s
= String_val (s_v
);
3573 struct tile
*tile
= parse_pointer ("ml_freepbo", s
);
3576 state
.glDeleteBuffersARB (1, &tile
->pbo
->id
);
3578 tile
->pbo
->ptr
= NULL
;
3579 tile
->pbo
->size
= -1;
3581 CAMLreturn (Val_unit
);
3584 CAMLprim value
ml_unmappbo (value s_v
)
3587 char *s
= String_val (s_v
);
3588 struct tile
*tile
= parse_pointer ("ml_unmappbo", s
);
3591 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
3592 if (state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
) == GL_FALSE
) {
3593 errx (1, "glUnmapBufferARB failed: %#x\n", glGetError ());
3595 tile
->pbo
->ptr
= NULL
;
3596 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3598 CAMLreturn (Val_unit
);
3601 static void setuppbo (void)
3603 #define GGPA(n) *(void (**) ()) &state.n = glXGetProcAddress ((GLubyte *) #n)
3604 GGPA (glBindBufferARB
);
3605 if (state
.glBindBufferARB
) {
3606 GGPA (glUnmapBufferARB
);
3607 if (state
.glUnmapBufferARB
) {
3608 GGPA (glMapBufferARB
);
3609 if (state
.glMapBufferARB
) {
3610 GGPA (glBufferDataARB
);
3611 if (state
.glBufferDataARB
) {
3612 GGPA (glGenBuffersARB
);
3613 if (state
.glGenBuffersARB
) {
3614 GGPA (glDeleteBuffersARB
);
3615 if (state
.glDeleteBuffersARB
) {
3616 state
.pbo_usable
= 1;
3626 CAMLprim value
ml_pbo_usable (value unit_v
)
3628 CAMLparam1 (unit_v
);
3629 CAMLreturn (Val_bool (state
.pbo_usable
));
3632 CAMLprim value
ml_unproject (value ptr_v
, value x_v
, value y_v
)
3634 CAMLparam3 (ptr_v
, x_v
, y_v
);
3635 CAMLlocal2 (ret_v
, tup_v
);
3637 char *s
= String_val (ptr_v
);
3638 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3639 struct pagedim
*pdim
;
3643 page
= parse_pointer ("ml_unproject", s
);
3644 pdim
= &state
.pagedims
[page
->pdimno
];
3646 ret_v
= Val_int (0);
3647 if (trylock ("ml_unproject")) {
3651 switch (page
->type
) {
3653 trimctm (page
->u
.pdfpage
, page
->pdimno
);
3662 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->ctm
);
3663 fz_invert_matrix (&ctm
, &ctm
);
3664 fz_transform_point (&p
, &ctm
);
3666 tup_v
= caml_alloc_tuple (2);
3667 ret_v
= caml_alloc_small (1, 1);
3668 Field (tup_v
, 0) = Val_int (p
.x
);
3669 Field (tup_v
, 1) = Val_int (p
.y
);
3670 Field (ret_v
, 0) = tup_v
;
3672 unlock ("ml_unproject");
3677 static void makestippletex (void)
3679 const char *pixels
= "\0\0\xff\xff";
3680 glGenTextures (1, &state
.stid
);
3681 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
3682 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MIN_FILTER
, GL_LINEAR
);
3683 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
3696 CAMLprim value
ml_init (value pipe_v
, value params_v
)
3698 CAMLparam2 (pipe_v
, params_v
);
3699 CAMLlocal2 (trim_v
, fuzz_v
);
3706 struct sigaction sa
;
3708 state
.cr
= Int_val (Field (pipe_v
, 0));
3709 state
.cw
= Int_val (Field (pipe_v
, 1));
3710 state
.rotate
= Int_val (Field (params_v
, 0));
3711 state
.proportional
= Bool_val (Field (params_v
, 1));
3712 trim_v
= Field (params_v
, 2);
3713 texcount
= Int_val (Field (params_v
, 3));
3714 state
.sliceheight
= Int_val (Field (params_v
, 4));
3715 mustoresize
= Int_val (Field (params_v
, 5));
3716 colorspace
= Int_val (Field (params_v
, 6));
3717 fontpath
= String_val (Field (params_v
, 7));
3718 state
.trimcachepath
= strdup (String_val (Field (params_v
, 8)));
3719 if (!state
.trimcachepath
) {
3720 fprintf (stderr
, "failed to strdup trimcachepath: %s\n",
3723 haspboext
= Bool_val (Field (params_v
, 9));
3725 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
3727 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
3728 fuzz_v
= Field (trim_v
, 1);
3729 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
3730 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
3731 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
3732 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
3734 set_tex_params (colorspace
);
3737 state
.face
= load_font (fontpath
);
3741 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
3743 state
.face
= load_builtin_font (base
, len
);
3745 if (!state
.face
) _exit (1);
3747 realloctexts (texcount
);
3755 sa
.sa_handler
= SIG_IGN
;
3756 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
3758 sa
.sa_handler
= SIG_DFL
;
3759 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
3761 if (sigemptyset (&sa
.sa_mask
)) {
3762 err (1, "sigemptyset");
3764 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
3765 err (1, "sigaction");
3768 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
3770 errx (1, "pthread_create: %s", strerror (ret
));
3773 CAMLreturn (Val_unit
);