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 */
29 #include <caml/fail.h>
30 #include <caml/alloc.h>
31 #include <caml/memory.h>
32 #include <caml/unixsupport.h>
36 #include <mupdf-internal.h>
38 #include <muxps-internal.h>
41 #include FT_FREETYPE_H
46 extern char **environ
;
49 #define MIN(a,b) ((a) < (b) ? (a) : (b))
50 #define MAX(a,b) ((a) > (b) ? (a) : (b))
53 #define NORETURN_ATTR __attribute__ ((noreturn))
54 #define UNUSED_ATTR __attribute__ ((unused))
55 #define OPTIMIZE_ATTR(n) __attribute__ ((optimize ("O"#n)))
56 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
60 #define OPTIMIZE_ATTR(n)
61 #define GCC_FMT_ATTR(a, b)
67 #define FMT_ptr_cast(p) (p)
68 #define FMT_ptr_cast2(p) (p)
70 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
71 err (int exitcode
, const char *fmt
, ...)
78 vfprintf (stderr
, fmt
, ap
);
80 fprintf (stderr
, ": %s\n", strerror (savederrno
));
85 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
86 errx (int exitcode
, const char *fmt
, ...)
91 vfprintf (stderr
, fmt
, ap
);
98 #ifndef GL_TEXTURE_RECTANGLE_ARB
99 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
103 #define GL_BGRA 0x80E1
106 #ifndef GL_UNSIGNED_INT_8_8_8_8
107 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
110 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
111 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
115 #define lprintf printf
120 #define ARSERT(cond) for (;;) { \
122 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
138 struct slice slices
[1];
149 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
157 enum { DPDF
, DXPS
, DCBZ
};
166 fz_text_sheet
*sheet
;
173 fz_display_list
*dlist
;
175 struct slink
*slinks
;
180 void (*freepage
) (void *);
186 struct pagedim
*pagedims
;
205 fz_colorspace
*colorspace
;
227 void (*closedoc
) (void);
228 void (*freepage
) (void *);
233 void (*glBindBufferARB
) (GLenum
, GLuint
);
234 GLboolean (*glUnmapBufferARB
) (GLenum
);
235 void *(*glMapBufferARB
) (GLenum
, GLenum
);
236 void (*glBufferDataARB
) (GLenum
, GLsizei
, void *, GLenum
);
237 void (*glGenBuffersARB
) (GLsizei
, GLuint
*);
238 void (*glDeleteBuffersARB
) (GLsizei
, GLuint
*);
247 static void UNUSED_ATTR
debug_rect (const char *cap
, fz_rect r
)
249 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
252 static void UNUSED_ATTR
debug_bbox (const char *cap
, fz_bbox r
)
254 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
257 static void UNUSED_ATTR
debug_matrix (const char *cap
, fz_matrix m
)
259 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
260 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
263 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
265 static void lock (const char *cap
)
267 int ret
= pthread_mutex_lock (&mutex
);
269 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
273 static void unlock (const char *cap
)
275 int ret
= pthread_mutex_unlock (&mutex
);
277 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
281 static int trylock (const char *cap
)
283 int ret
= pthread_mutex_trylock (&mutex
);
284 if (ret
&& ret
!= EBUSY
) {
285 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
290 static void *parse_pointer (const char *cap
, const char *s
)
295 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
297 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
302 static double now (void)
306 if (gettimeofday (&tv
, NULL
)) {
307 err (1, "gettimeofday");
309 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
312 static int hasdata (void)
315 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
316 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
320 CAMLprim value
ml_hasdata (value fd_v
)
325 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
326 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
327 CAMLreturn (Val_bool (avail
> 0));
330 static void readdata (void *p
, int size
)
335 n
= read (state
.cr
, p
, size
);
337 if (errno
== EINTR
) goto again
;
338 err (1, "read (req %d, ret %zd)", size
, n
);
341 if (!n
) errx (1, "EOF while reading");
342 errx (1, "read (req %d, ret %zd)", size
, n
);
346 static void writedata (char *p
, int size
)
351 buf
[0] = (size
>> 24) & 0xff;
352 buf
[1] = (size
>> 16) & 0xff;
353 buf
[2] = (size
>> 8) & 0xff;
354 buf
[3] = (size
>> 0) & 0xff;
356 n
= write (state
.cw
, buf
, 4);
358 if (!n
) errx (1, "EOF while writing length");
359 err (1, "write %zd", n
);
362 n
= write (state
.cw
, p
, size
);
364 if (!n
) errx (1, "EOF while writing data");
365 err (1, "write (req %d, ret %zd)", size
, n
);
369 static int readlen (void)
374 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
377 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
385 if (!buf
) err (1, "malloc for temp buf (%d bytes) failed", size
);
388 len
= vsnprintf (buf
, size
, fmt
, ap
);
391 if (len
> -1 && len
< size
) {
392 writedata (buf
, len
);
402 buf
= realloc (buf
, size
);
407 static void closepdf (void)
410 pdf_close_document (state
.u
.pdf
);
415 static void closexps (void)
418 xps_close_document (state
.u
.xps
);
423 static void closecbz (void)
426 cbz_close_document (state
.u
.cbz
);
431 static void freepdfpage (void *ptr
)
433 pdf_free_page (state
.u
.pdf
, ptr
);
436 static void freeemptyxxxpage (void *ptr
)
441 static void freexpspage (void *ptr
)
443 xps_free_page (state
.u
.xps
, ptr
);
446 static void freecbzpage (void *ptr
)
448 cbz_free_page (state
.u
.cbz
, ptr
);
451 static void openxref (char *filename
, char *password
)
455 for (i
= 0; i
< state
.texcount
; ++i
) {
456 state
.texowners
[i
].w
= -1;
457 state
.texowners
[i
].slice
= NULL
;
460 if (state
.closedoc
) state
.closedoc ();
462 len
= strlen (filename
);
468 ext
[0] = tolower ((int) filename
[len
-3]);
469 ext
[1] = tolower ((int) filename
[len
-2]);
470 ext
[2] = tolower ((int) filename
[len
-1]);
472 /**/ if (ext
[0] == 'x' && ext
[1] == 'p' && ext
[2] == 's') {
475 else if (ext
[0] == 'c' && ext
[1] == 'b' && ext
[2] == 'z') {
480 if (state
.pagedims
) {
481 free (state
.pagedims
);
482 state
.pagedims
= NULL
;
484 state
.pagedimcount
= 0;
486 fz_set_aa_level (state
.ctx
, state
.aalevel
);
487 switch (state
.type
) {
489 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
490 if (pdf_needs_password (state
.u
.pdf
)) {
491 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
493 errx (1, "invalid password");
496 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
497 state
.closedoc
= closepdf
;
498 state
.freepage
= freepdfpage
;
502 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
503 state
.pagecount
= xps_count_pages (state
.u
.xps
);
504 state
.closedoc
= closexps
;
505 state
.freepage
= freexpspage
;
509 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
510 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
511 state
.closedoc
= closecbz
;
512 state
.freepage
= freecbzpage
;
517 static void pdfinfo (void)
519 if (state
.type
== DPDF
) {
522 printd ("info PDF version\t%d.%d",
523 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
525 infoobj
= pdf_dict_gets (state
.u
.pdf
->trailer
, "Info");
529 char *items
[] = { "Title", "Author", "Creator",
530 "Producer", "CreationDate" };
532 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
533 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
534 s
= pdf_to_utf8 (state
.u
.pdf
, obj
);
537 printd ("title %s", s
);
539 printd ("info %s\t%s", items
[i
], s
);
541 fz_free (state
.ctx
, s
);
548 static void unlinktile (struct tile
*tile
)
552 for (i
= 0; i
< tile
->slicecount
; ++i
) {
553 struct slice
*s
= &tile
->slices
[i
];
555 if (s
->texindex
!= -1) {
556 if (state
.texowners
[s
->texindex
].slice
== s
) {
557 state
.texowners
[s
->texindex
].slice
= NULL
;
563 static void freepage (struct page
*page
)
566 fz_free_text_page (state
.ctx
, page
->text
);
569 fz_free_text_sheet (state
.ctx
, page
->sheet
);
574 page
->freepage (page
->u
.ptr
);
575 fz_free_display_list (state
.ctx
, page
->dlist
);
579 static void freetile (struct tile
*tile
)
584 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
587 fz_drop_pixmap (state
.ctx
, state
.pig
);
589 state
.pig
= tile
->pixmap
;
594 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
602 static int cacheline32bytes
;
604 static void __attribute__ ((constructor
)) clcheck (void)
606 char **envp
= environ
;
611 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
613 cacheline32bytes
= auxv
[1] == 32;
619 static void OPTIMIZE_ATTR (3) clearpixmap (fz_pixmap
*pixmap
)
621 size_t size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
622 if (cacheline32bytes
&& size
> 32) {
623 intptr_t a1
, a2
, diff
;
625 vector
unsigned char v
= vec_splat_u8 (-1);
626 vector
unsigned char *p
;
628 a1
= a2
= (intptr_t) pixmap
->samples
;
629 a2
= (a1
+ 31) & ~31;
634 while (a1
!= a2
) *(char *) a1
++ = 0xff;
635 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
636 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
638 vec_st (v
, i
+ 16, p
);
640 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
642 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
645 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
648 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
651 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
653 if (!pdim
->tctmready
) {
654 if (state
.trimmargins
) {
657 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
658 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
659 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
660 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
671 static fz_matrix
pagectm (struct page
*page
)
673 if (page
->type
== DPDF
) {
674 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
675 state
.pagedims
[page
->pdimno
].ctm
);
679 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
681 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
682 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
683 -pdim
->mediabox
.y0
), ctm
);
688 static void *loadpage (int pageno
, int pindex
)
691 struct page
*page
= NULL
;
693 page
= calloc (sizeof (struct page
), 1);
695 err (1, "calloc page %d", pageno
);
698 page
->dlist
= fz_new_display_list (state
.ctx
);
699 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
701 switch (state
.type
) {
703 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
704 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
705 page
->freepage
= freepdfpage
;
709 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
710 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
711 page
->freepage
= freexpspage
;
715 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
716 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
717 page
->freepage
= freecbzpage
;
721 fz_catch (state
.ctx
) {
723 page
->freepage
= freeemptyxxxpage
;
725 fz_free_device (dev
);
727 page
->pdimno
= pindex
;
728 page
->pageno
= pageno
;
729 page
->sgen
= state
.gen
;
730 page
->tgen
= state
.gen
;
731 page
->type
= state
.type
;
736 static struct tile
*alloctile (int h
)
743 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
744 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
745 tile
= calloc (tilesize
, 1);
747 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
749 for (i
= 0; i
< slicecount
; ++i
) {
750 int sh
= MIN (h
, state
.sliceheight
);
751 tile
->slices
[i
].h
= sh
;
752 tile
->slices
[i
].texindex
= -1;
755 tile
->slicecount
= slicecount
;
756 tile
->sliceheight
= state
.sliceheight
;
766 static void obs_fill_image (fz_device
*dev
, fz_image
*image
, fz_matrix ctm
,
769 struct obs
*obs
= dev
->user
;
771 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
772 fz_bbox b
= fz_round_rect (fz_transform_rect (ctm
, fz_unit_rect
));
773 b
= fz_intersect_bbox (b
, obs
->b
);
774 obs
->cured
= b
.x0
== obs
->b
.x0
777 && b
.y1
== obs
->b
.y1
;
781 static int obscured (struct page
*page
, fz_bbox bbox
)
786 memset (&dev
, 0, sizeof (dev
));
787 memset (&obs
, 0, sizeof (obs
));
792 dev
.fill_image
= obs_fill_image
;
794 fz_run_display_list (page
->dlist
, &dev
, pagectm (page
), bbox
, NULL
);
797 #define OBSCURED obscured
799 #define OBSCURED(a, b) 0
802 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
,
808 struct pagedim
*pdim
;
810 tile
= alloctile (h
);
811 pdim
= &state
.pagedims
[page
->pdimno
];
816 bbox
.x1
= bbox
.x0
+ w
;
817 bbox
.y1
= bbox
.y0
+ h
;
820 if (state
.pig
->w
== w
822 && state
.pig
->colorspace
== state
.colorspace
) {
823 tile
->pixmap
= state
.pig
;
824 tile
->pixmap
->x
= bbox
.x0
;
825 tile
->pixmap
->y
= bbox
.y0
;
828 fz_drop_pixmap (state
.ctx
, state
.pig
);
835 fz_new_pixmap_with_bbox_and_data (state
.ctx
, state
.colorspace
,
841 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, bbox
);
847 if (!page
->u
.ptr
|| ((w
< 128 && h
< 128) || !OBSCURED (page
, bbox
))) {
848 clearpixmap (tile
->pixmap
);
850 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
851 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
852 fz_free_device (dev
);
857 static void initpdims (void)
860 int pageno
, trim
, show
;
866 if (state
.trimmargins
&& state
.trimcachepath
) {
867 trimf
= fopen (state
.trimcachepath
, "rb");
869 trimf
= fopen (state
.trimcachepath
, "wb");
873 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
878 switch (state
.type
) {
880 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
882 if (state
.trimmargins
) {
887 page
= pdf_load_page (state
.u
.pdf
, pageno
);
888 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
889 trim
= state
.trimanew
|| !obj
;
896 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
897 dev
->hints
|= FZ_IGNORE_SHADE
;
898 ctm
= fz_invert_matrix (page
->ctm
);
899 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
900 fz_free_device (dev
);
902 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
903 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
904 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
905 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
906 rect
= fz_transform_rect (ctm
, rect
);
907 rect
= fz_intersect_rect (rect
, page
->mediabox
);
909 if (fz_is_empty_rect (rect
)) {
910 mediabox
= page
->mediabox
;
916 obj
= pdf_new_array (state
.ctx
, 4);
917 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
918 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
919 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
920 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
921 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
924 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
925 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
926 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
927 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
930 rotate
= page
->rotate
;
931 pdf_free_page (state
.u
.pdf
, page
);
933 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
935 printd ("progress %f Trimming %d",
936 (double) (pageno
+ 1) / state
.pagecount
,
940 fz_catch (state
.ctx
) {
941 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
947 mediabox
= pdf_to_rect (state
.ctx
,
948 pdf_dict_gets (pageobj
, "MediaBox"));
949 if (fz_is_empty_rect (mediabox
)) {
950 fprintf (stderr
, "cannot find page size for page %d\n",
958 cropbox
= pdf_to_rect (state
.ctx
,
959 pdf_dict_gets (pageobj
, "CropBox"));
960 if (!fz_is_empty_rect (cropbox
)) {
961 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
963 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
973 page
= xps_load_page (state
.u
.xps
, pageno
);
974 mediabox
= xps_bound_page (state
.u
.xps
, page
);
976 if (state
.trimmargins
) {
981 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
982 dev
->hints
|= FZ_IGNORE_SHADE
;
983 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
984 fz_free_device (dev
);
986 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
987 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
988 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
989 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
990 rect
= fz_intersect_rect (rect
, mediabox
);
992 if (!fz_is_empty_rect (rect
)) {
996 xps_free_page (state
.u
.xps
, page
);
997 printd ("progress %f loading %d",
998 (double) (pageno
+ 1) / state
.pagecount
,
1001 fz_catch (state
.ctx
) {
1009 if (state
.trimmargins
&& trimw
) {
1012 fz_try (state
.ctx
) {
1013 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1014 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
1015 cbz_free_page (state
.u
.cbz
, page
);
1016 printd ("progress %f Trimming %d",
1017 (double) (pageno
+ 1) / state
.pagecount
,
1020 fz_catch (state
.ctx
) {
1021 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1028 int n
= fwrite (&mediabox
, sizeof (mediabox
), 1, trimf
);
1030 err (1, "fwrite trim mediabox");
1036 int n
= fread (&mediabox
, sizeof (mediabox
), 1, trimf
);
1038 err (1, "fread trim mediabox");
1042 mediabox
.x0
= mediabox
.y0
= 0;
1051 ARSERT (0 && state
.type
);
1054 if (state
.pagedimcount
== 0
1055 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
1056 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
1059 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
1060 state
.pagedims
= realloc (state
.pagedims
, size
);
1061 if (!state
.pagedims
) {
1062 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
1063 size
, state
.pagedimcount
+ 1);
1066 p
= &state
.pagedims
[state
.pagedimcount
++];
1068 p
->mediabox
= mediabox
;
1073 if (state
.trimmargins
) {
1074 printd ("progress 1 Trimmed %d pages in %f seconds",
1075 state
.pagecount
, end
- start
);
1078 printd ("vmsg Processed %d pages in %f seconds",
1079 state
.pagecount
, end
- start
);
1083 if (fclose (trimf
)) {
1089 static void layout (void)
1094 double zoom
, w
, maxw
= 0;
1095 struct pagedim
*p
= state
.pagedims
;
1097 if (state
.proportional
) {
1098 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1099 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1101 w
= box
.x1
- box
.x0
;
1102 maxw
= MAX (w
, maxw
);
1107 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1110 ctm
= fz_rotate (state
.rotate
);
1111 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1113 w
= box
.x1
- box
.x0
;
1115 if (state
.proportional
) {
1116 double scale
= w
/ maxw
;
1117 zoom
= (state
.w
/ w
) * scale
;
1123 p
->zoomctm
= fz_scale (zoom
, zoom
);
1124 ctm
= fz_concat (p
->zoomctm
, ctm
);
1126 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
1127 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1128 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1131 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
1134 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
1138 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
1139 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
1140 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
1146 while (p
-- != state
.pagedims
) {
1147 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1148 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1149 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1150 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1154 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1158 static struct anchor
{ int n
; int y
; int h
; } desttoanchor (fz_link_dest
*dest
)
1162 struct pagedim
*pdim
= state
.pagedims
;
1166 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1167 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1169 pdim
= &state
.pagedims
[i
];
1171 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1174 p
.y
= dest
->ld
.gotor
.lt
.y
;
1175 p
= fz_transform_point (pdim
->lctm
, p
);
1178 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1181 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1182 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1184 a
.n
= dest
->ld
.gotor
.page
;
1189 static void recurse_outline (fz_outline
*outline
, int level
)
1192 struct anchor a
= desttoanchor (&outline
->dest
);
1195 printd ("o %d %d %d %d %s",
1196 level
, a
.n
, a
.y
, a
.h
, outline
->title
);
1198 if (outline
->down
) {
1199 recurse_outline (outline
->down
, level
+ 1);
1201 outline
= outline
->next
;
1205 static void process_outline (void)
1207 fz_outline
*outline
;
1209 if (!state
.needoutline
) return;
1211 state
.needoutline
= 0;
1212 switch (state
.type
) {
1214 outline
= pdf_load_outline (state
.u
.pdf
);
1217 outline
= xps_load_outline (state
.u
.xps
);
1224 recurse_outline (outline
, 0);
1225 fz_free_outline (state
.ctx
, outline
);
1229 static char *strofspan (fz_text_span
*span
)
1234 size_t size
= 0, cap
= 80;
1236 p
= malloc (cap
+ 1);
1237 if (!p
) return NULL
;
1239 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1240 int n
= fz_runetochar (utf8
, ch
->c
);
1241 if (size
+ n
> cap
) {
1243 p
= realloc (p
, cap
+ 1);
1244 if (!p
) return NULL
;
1247 memcpy (p
+ size
, utf8
, n
);
1254 static int matchspan (regex_t
*re
, fz_text_span
*span
, fz_matrix ctm
,
1255 int stop
, int pageno
, double start
)
1262 fz_point p1
, p2
, p3
, p4
;
1264 p
= strofspan (span
);
1267 ret
= regexec (re
, p
, 1, &rm
, 0);
1270 if (ret
!= REG_NOMATCH
) {
1273 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1274 printd ("msg regexec error `%.*s'",
1275 (int) size
, errbuf
);
1282 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1283 c
+= fz_runelen (span
->text
[a
].c
);
1285 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1286 c
+= fz_runelen (span
->text
[b
].c
);
1289 if (fz_runelen (span
->text
[b
].c
) > 1) {
1292 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1293 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1305 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1312 printd ("progress 1 found at %d `%.*s' in %f sec",
1313 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1317 printd ("match %d %d %f %f %f %f %f %f %f %f",
1329 static int compareblocks (const void *l
, const void *r
)
1331 fz_text_block
const *ls
= l
;
1332 fz_text_block
const* rs
= r
;
1333 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1336 /* wishful thinking function */
1337 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1342 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1344 fz_text_sheet
*sheet
;
1345 struct pagedim
*pdim
, *pdimprev
;
1346 int stop
= 0, niters
= 0;
1349 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1353 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1354 if (niters
++ == 5) {
1357 printd ("progress 1 attention requested aborting search at %d",
1362 printd ("progress %f searching in page %d",
1363 (double) (pageno
+ 1) / state
.pagecount
,
1368 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1369 pdim
= &state
.pagedims
[i
];
1370 if (pdim
->pageno
== pageno
) {
1373 if (pdim
->pageno
> pageno
) {
1382 sheet
= fz_new_text_sheet (state
.ctx
);
1383 text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
1384 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1386 switch (state
.type
) {
1389 fz_try (state
.ctx
) {
1390 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1391 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1392 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1393 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, ctm
, NULL
);
1395 fz_catch (state
.ctx
) {
1396 fz_free_device (tdev
);
1403 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1405 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, ctm
, NULL
);
1409 ARSERT (0 && state
.type
);
1412 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1413 fz_free_device (tdev
);
1415 for (j
= 0; j
< text
->len
; ++j
) {
1417 fz_text_block
*block
;
1419 block
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1421 for (k
= 0; k
< block
->len
; ++k
) {
1426 line
= &block
->lines
[k
];
1427 if (line
->bbox
.y0
< y
+ 1) continue;
1430 line
= &block
->lines
[block
->len
- 1 - k
];
1431 if (line
->bbox
.y0
> y
- 1) continue;
1434 for (span
= line
->spans
;
1435 span
< line
->spans
+ line
->len
;
1438 switch (matchspan (re
, span
, ctm
, stop
, pageno
, start
)) {
1440 case 1: stop
= 1; break;
1441 case -1: stop
= 1; goto endloop
;
1456 fz_free_text_page (state
.ctx
, text
);
1457 fz_free_text_sheet (state
.ctx
, sheet
);
1459 state
.freepage (u
.ptr
);
1464 printd ("progress 1 no matches %f sec", end
- start
);
1466 printd ("clearrects");
1469 static void set_tex_params (int colorspace
)
1476 switch (colorspace
) {
1478 state
.texiform
= GL_RGBA8
;
1479 state
.texform
= GL_RGBA
;
1480 state
.texty
= GL_UNSIGNED_BYTE
;
1481 state
.colorspace
= fz_device_rgb
;
1484 state
.texiform
= GL_RGBA8
;
1485 state
.texform
= GL_BGRA
;
1486 state
.texty
= endianness
.s
> 1
1487 ? GL_UNSIGNED_INT_8_8_8_8
1488 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1489 state
.colorspace
= fz_device_bgr
;
1492 state
.texiform
= GL_LUMINANCE_ALPHA
;
1493 state
.texform
= GL_LUMINANCE_ALPHA
;
1494 state
.texty
= GL_UNSIGNED_BYTE
;
1495 state
.colorspace
= fz_device_gray
;
1498 errx (1, "invalid colorspce %d", colorspace
);
1502 static void realloctexts (int texcount
)
1506 if (texcount
== state
.texcount
) return;
1508 if (texcount
< state
.texcount
) {
1509 glDeleteTextures (state
.texcount
- texcount
,
1510 state
.texids
+ texcount
);
1513 size
= texcount
* sizeof (*state
.texids
);
1514 state
.texids
= realloc (state
.texids
, size
);
1515 if (!state
.texids
) {
1516 err (1, "realloc texids %" FMT_s
, size
);
1519 size
= texcount
* sizeof (*state
.texowners
);
1520 state
.texowners
= realloc (state
.texowners
, size
);
1521 if (!state
.texowners
) {
1522 err (1, "realloc texowners %" FMT_s
, size
);
1524 if (texcount
> state
.texcount
) {
1527 glGenTextures (texcount
- state
.texcount
,
1528 state
.texids
+ state
.texcount
);
1529 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1530 state
.texowners
[i
].w
= -1;
1531 state
.texowners
[i
].slice
= NULL
;
1534 state
.texcount
= texcount
;
1538 static char *mbtoutf8 (char *s
)
1544 len
= mbstowcs (NULL
, s
, strlen (s
));
1549 if (len
== (size_t) -1) {
1554 tmp
= malloc (len
* sizeof (wchar_t));
1559 ret
= mbstowcs (tmp
, s
, len
);
1560 if (ret
== (size_t) -1) {
1566 for (i
= 0; i
< ret
; ++i
) {
1567 len
+= fz_runelen (tmp
[i
]);
1570 p
= r
= malloc (len
+ 1);
1576 for (i
= 0; i
< ret
; ++i
) {
1577 p
+= fz_runetochar (p
, tmp
[i
]);
1584 CAMLprim value
ml_mbtoutf8 (value s_v
)
1590 s
= String_val (s_v
);
1596 ret_v
= caml_copy_string (r
);
1602 static void * mainloop (void *unused
)
1605 int len
, ret
, oldlen
= 0;
1610 errx (1, "readlen returned 0");
1613 if (oldlen
< len
+ 1) {
1614 p
= realloc (p
, len
+ 1);
1616 err (1, "realloc %d failed", len
+ 1);
1623 if (!strncmp ("open", p
, 4)) {
1630 ret
= sscanf (p
+ 5, " %d %n", &wthack
, &off
);
1632 errx (1, "malformed open `%.*s' ret=%d", len
, p
, ret
);
1635 filename
= p
+ 5 + off
;
1636 filenamelen
= strlen (filename
);
1637 password
= filename
+ filenamelen
+ 1;
1639 openxref (filename
, password
);
1643 utf8filename
= mbtoutf8 (filename
);
1644 printd ("msg Opened %s (press h/F1 to get help)", utf8filename
);
1645 if (utf8filename
!= filename
) {
1646 free (utf8filename
);
1649 state
.needoutline
= 1;
1651 else if (!strncmp ("cs", p
, 2)) {
1654 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1656 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1659 set_tex_params (colorspace
);
1660 for (i
= 0; i
< state
.texcount
; ++i
) {
1661 state
.texowners
[i
].w
= -1;
1662 state
.texowners
[i
].slice
= NULL
;
1666 else if (!strncmp ("freepage", p
, 8)) {
1669 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1671 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1675 else if (!strncmp ("freetile", p
, 8)) {
1678 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1680 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1684 else if (!strncmp ("search", p
, 6)) {
1685 int icase
, pageno
, y
, ret
, len2
, forward
;
1689 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1690 &icase
, &pageno
, &y
, &forward
, &len2
);
1692 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1695 pattern
= p
+ 6 + len2
;
1696 ret
= regcomp (&re
, pattern
,
1697 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1702 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1703 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1706 search (&re
, pageno
, y
, forward
);
1710 else if (!strncmp ("geometry", p
, 8)) {
1714 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1716 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1724 for (i
= 0; i
< state
.texcount
; ++i
) {
1725 state
.texowners
[i
].slice
= NULL
;
1732 unlock ("geometry");
1733 printd ("continue %d", state
.pagecount
);
1735 else if (!strncmp ("anchor", p
, 6)) {
1736 char *nameddest
= p
+ 7;
1737 if (state
.type
== DPDF
&& nameddest
&& *nameddest
) {
1740 pdf_obj
*needle
, *obj
;
1742 needle
= pdf_new_string (state
.ctx
, nameddest
,
1743 strlen (nameddest
));
1744 obj
= pdf_lookup_dest (state
.u
.pdf
, needle
);
1746 dest
= pdf_parse_link_dest (state
.u
.pdf
, obj
);
1748 a
= desttoanchor (&dest
);
1750 printd ("a %d %d %d", a
.n
, a
.y
, a
.h
);
1753 printd ("emsg failed to parse destination `%s'\n",
1758 printd ("emsg destination `%s' not found\n",
1761 pdf_drop_obj (needle
);
1764 else if (!strncmp ("reqlayout", p
, 9)) {
1765 int rotate
, proportional
;
1768 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1770 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1773 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1776 state
.rotate
= rotate
;
1777 state
.proportional
= proportional
;
1781 unlock ("reqlayout");
1782 printd ("continue %d", state
.pagecount
);
1784 else if (!strncmp ("page", p
, 4)) {
1787 int pageno
, pindex
, ret
;
1789 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1791 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1796 page
= loadpage (pageno
, pindex
);
1800 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1802 else if (!strncmp ("tile", p
, 4)) {
1803 int x
, y
, w
, h
, ret
;
1809 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d %" FMT_ptr
,
1810 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
, &data
);
1812 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1817 tile
= rendertile (page
, x
, y
, w
, h
, data
);
1821 printd ("tile %d %d %" FMT_ptr
" %u %f",
1823 FMT_ptr_cast2 (tile
),
1824 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1827 else if (!strncmp ("settrim", p
, 7)) {
1831 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1832 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1834 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1838 state
.trimmargins
= trimmargins
;
1839 state
.needoutline
= 1;
1840 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1842 state
.trimfuzz
= fuzz
;
1844 state
.pagedimcount
= 0;
1845 free (state
.pagedims
);
1846 state
.pagedims
= NULL
;
1851 printd ("continue %d", state
.pagecount
);
1853 else if (!strncmp ("sliceh", p
, 6)) {
1856 ret
= sscanf (p
+ 6, " %d", &h
);
1858 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1860 if (h
!= state
.sliceheight
) {
1863 state
.sliceheight
= h
;
1864 for (i
= 0; i
< state
.texcount
; ++i
) {
1865 state
.texowners
[i
].w
= -1;
1866 state
.texowners
[i
].h
= -1;
1867 state
.texowners
[i
].slice
= NULL
;
1871 else if (!strncmp ("interrupt", p
, 9)) {
1872 printd ("vmsg interrupted");
1875 errx (1, "unknown command %.*s", len
, p
);
1881 CAMLprim value
ml_realloctexts (value texcount_v
)
1883 CAMLparam1 (texcount_v
);
1886 if (trylock ("ml_realloctexts")) {
1890 realloctexts (Int_val (texcount_v
));
1892 unlock ("ml_realloctexts");
1895 CAMLreturn (Val_bool (ok
));
1898 static void showsel (struct page
*page
, int ox
, int oy
)
1904 fz_text_block
*block
;
1905 struct mark first
, last
;
1907 first
= page
->fmark
;
1910 if (!first
.span
|| !last
.span
) return;
1912 glEnable (GL_BLEND
);
1913 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1914 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1916 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1917 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1918 for (block
= page
->text
->blocks
;
1919 block
< page
->text
->blocks
+ page
->text
->len
;
1921 for (line
= block
->lines
;
1922 line
< block
->lines
+ block
->len
;
1924 for (span
= line
->spans
;
1925 span
< line
->spans
+ line
->len
;
1929 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1934 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1936 j
= MIN (first
.i
, last
.i
);
1937 k
= MAX (first
.i
, last
.i
);
1939 else if (span
== first
.span
) {
1943 else if (span
== last
.span
) {
1949 for (i
= j
; i
<= k
; ++i
) {
1950 fz_bbox b
= fz_round_rect (span
->text
[i
].bbox
);
1951 bbox
= fz_union_bbox (bbox
, b
);
1953 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1960 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
1961 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1962 if (span
== last
.span
) {
1970 glDisable (GL_BLEND
);
1975 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
1978 fz_link
*link
, *links
;
1980 switch (page
->type
) {
1982 links
= page
->u
.pdfpage
->links
;
1986 links
= page
->u
.xpspage
->links
;
1993 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1994 glEnable (GL_LINE_STIPPLE
);
1995 glLineStipple (0.5, 0xcccc);
1997 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1998 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1999 ctm
= fz_concat (pagectm (page
), fz_translate (xoff
, yoff
));
2002 for (link
= links
; link
; link
= link
->next
) {
2003 fz_point p1
, p2
, p3
, p4
;
2005 p1
.x
= link
->rect
.x0
;
2006 p1
.y
= link
->rect
.y0
;
2008 p2
.x
= link
->rect
.x1
;
2009 p2
.y
= link
->rect
.y0
;
2011 p3
.x
= link
->rect
.x1
;
2012 p3
.y
= link
->rect
.y1
;
2014 p4
.x
= link
->rect
.x0
;
2015 p4
.y
= link
->rect
.y1
;
2017 p1
= fz_transform_point (ctm
, p1
);
2018 p2
= fz_transform_point (ctm
, p2
);
2019 p3
= fz_transform_point (ctm
, p3
);
2020 p4
= fz_transform_point (ctm
, p4
);
2022 switch (link
->dest
.kind
) {
2023 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
2024 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
2025 default: glColor3ub (0, 0, 0); break;
2028 glVertex2f (p1
.x
, p1
.y
);
2029 glVertex2f (p2
.x
, p2
.y
);
2030 glVertex2f (p3
.x
, p3
.y
);
2031 glVertex2f (p4
.x
, p4
.y
);
2035 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2036 glDisable (GL_LINE_STIPPLE
);
2039 static int compareslinks (const void *l
, const void *r
)
2041 struct slink
const *ls
= l
;
2042 struct slink
const *rs
= r
;
2043 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
2044 return rs
->bbox
.x0
- rs
->bbox
.x0
;
2046 return ls
->bbox
.y0
- rs
->bbox
.y0
;
2049 static void droptext (struct page
*page
)
2052 fz_free_text_page (state
.ctx
, page
->text
);
2055 page
->fmark
.span
= NULL
;
2056 page
->lmark
.span
= NULL
;
2060 fz_free_text_sheet (state
.ctx
, page
->sheet
);
2064 static void dropslinks (struct page
*page
)
2067 free (page
->slinks
);
2068 page
->slinks
= NULL
;
2069 page
->slinkcount
= 0;
2073 static void ensureslinks (struct page
*page
)
2077 size_t slinksize
= sizeof (*page
->slinks
);
2078 fz_link
*link
, *links
;
2080 if (state
.gen
!= page
->sgen
) {
2082 page
->sgen
= state
.gen
;
2084 if (page
->slinks
) return;
2086 switch (page
->type
) {
2088 links
= page
->u
.pdfpage
->links
;
2089 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
2090 state
.pagedims
[page
->pdimno
].ctm
);
2094 links
= page
->u
.xpspage
->links
;
2095 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
2102 for (link
= links
; link
; link
= link
->next
) {
2106 page
->slinkcount
= count
;
2107 page
->slinks
= calloc (count
, slinksize
);
2108 if (!page
->slinks
) {
2109 err (1, "realloc slinks %d", count
);
2112 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
2113 page
->slinks
[i
].link
= link
;
2114 page
->slinks
[i
].bbox
=
2115 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
2117 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
2121 /* slightly tweaked fmt_ulong by D.J. Bernstein */
2122 static void fmt_linkn (char *s
, unsigned int u
)
2124 unsigned int len
; unsigned int q
;
2125 int zma
= 'z' - 'a' + 1;
2127 while (q
> zma
- 1) { ++len
; q
/= zma
; }
2130 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
2131 /* handles u == 0 */
2136 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
2137 int noff
, char *targ
, int tlen
, int hfsize
)
2141 struct slink
*slink
;
2142 double x0
, y0
, x1
, y1
, w
;
2144 ensureslinks (page
);
2145 glColor3ub (0xc3, 0xb0, 0x91);
2146 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2147 fmt_linkn (buf
, i
+ noff
);
2148 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2149 slink
= &page
->slinks
[i
];
2151 x0
= slink
->bbox
.x0
+ xoff
- 5;
2152 y1
= slink
->bbox
.y0
+ yoff
- 5;
2153 y0
= y1
+ 10 + hfsize
;
2154 w
= measure_string (state
.face
, hfsize
, buf
);
2156 glRectd (x0
, y0
, x1
, y1
);
2160 glEnable (GL_BLEND
);
2161 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2162 glEnable (GL_TEXTURE_2D
);
2163 glColor3ub (0, 0, 0);
2164 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2165 fmt_linkn (buf
, i
+ noff
);
2166 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2167 slink
= &page
->slinks
[i
];
2169 x0
= slink
->bbox
.x0
+ xoff
;
2170 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
2171 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
2174 glDisable (GL_TEXTURE_2D
);
2175 glDisable (GL_BLEND
);
2179 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
2182 struct slice
*slice1
;
2183 unsigned char *texdata
;
2186 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
2187 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
2189 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
2190 && state
.texowners
[slice
->texindex
].slice
== slice
) {
2191 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
2195 int texindex
= state
.texindex
++ % state
.texcount
;
2197 if (state
.texowners
[texindex
].w
== tile
->w
) {
2198 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2202 state
.texowners
[texindex
].h
= slice
->h
;
2206 state
.texowners
[texindex
].h
= slice
->h
;
2209 state
.texowners
[texindex
].w
= tile
->w
;
2210 state
.texowners
[texindex
].slice
= slice
;
2211 slice
->texindex
= texindex
;
2213 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2215 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
2219 texdata
= tile
->pixmap
->samples
;
2222 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2234 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2246 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
2251 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2253 CAMLparam2 (args_v
, ptr_v
);
2254 int dispx
= Int_val (Field (args_v
, 0));
2255 int dispy
= Int_val (Field (args_v
, 1));
2256 int dispw
= Int_val (Field (args_v
, 2));
2257 int disph
= Int_val (Field (args_v
, 3));
2258 int tilex
= Int_val (Field (args_v
, 4));
2259 int tiley
= Int_val (Field (args_v
, 5));
2260 char *s
= String_val (ptr_v
);
2261 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2263 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2265 int slicey
, firstslice
;
2266 struct slice
*slice
;
2268 firstslice
= tiley
/ tile
->sliceheight
;
2269 slice
= &tile
->slices
[firstslice
];
2270 slicey
= tiley
% tile
->sliceheight
;
2275 dh
= slice
->h
- slicey
;
2276 dh
= MIN (disph
, dh
);
2277 uploadslice (tile
, slice
);
2281 glTexCoord2i (tilex
, slicey
);
2282 glVertex2i (dispx
, dispy
);
2284 glTexCoord2i (tilex
+dispw
, slicey
);
2285 glVertex2i (dispx
+dispw
, dispy
);
2287 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
2288 glVertex2i (dispx
+dispw
, dispy
+dh
);
2290 glTexCoord2i (tilex
, slicey
+dh
);
2291 glVertex2i (dispx
, dispy
+dh
);
2298 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2302 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2303 CAMLreturn (Val_unit
);
2306 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2307 value xoff_v
, value yoff_v
,
2310 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2311 int xoff
= Int_val (xoff_v
);
2312 int yoff
= Int_val (yoff_v
);
2313 int noff
= Int_val (Field (li_v
, 0));
2314 char *targ
= String_val (Field (li_v
, 1));
2315 int tlen
= caml_string_length (Field (li_v
, 1));
2316 int hfsize
= Int_val (Field (li_v
, 2));
2317 char *s
= String_val (ptr_v
);
2318 int hlmask
= Int_val (hlinks_v
);
2319 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2322 /* deal with loadpage failed pages */
2326 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2327 if (trylock ("ml_postprocess")) {
2332 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2333 noff
= page
->slinkcount
;
2335 showsel (page
, xoff
, yoff
);
2336 unlock ("ml_postprocess");
2339 CAMLreturn (Val_int (noff
));
2342 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2346 fz_link
*link
, *links
;
2348 switch (page
->type
) {
2350 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
2351 links
= page
->u
.pdfpage
->links
;
2356 links
= page
->u
.xpspage
->links
;
2365 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
2366 ctm
= fz_invert_matrix (ctm
);
2367 p
= fz_transform_point (ctm
, p
);
2369 for (link
= links
; link
; link
= link
->next
) {
2370 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2371 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2379 static void ensuretext (struct page
*page
)
2381 if (state
.gen
!= page
->tgen
) {
2383 page
->tgen
= state
.gen
;
2388 page
->text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
2389 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2390 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2391 fz_run_display_list (page
->dlist
,
2394 fz_infinite_bbox
, NULL
);
2395 qsort (page
->text
->blocks
, page
->text
->len
,
2396 sizeof (*page
->text
->blocks
), compareblocks
);
2397 fz_free_device (tdev
);
2401 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2403 CAMLparam2 (start_page_v
, dir_v
);
2405 int i
, dir
= Int_val (dir_v
);
2406 int start_page
= Int_val (start_page_v
);
2407 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2409 ret_v
= Val_int (0);
2410 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2414 lock ("ml_findpage_with_links");
2415 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2418 switch (state
.type
) {
2421 pdf_page
*page
= NULL
;
2423 fz_try (state
.ctx
) {
2424 page
= pdf_load_page (state
.u
.pdf
, i
);
2425 found
= !!page
->links
;
2427 fz_catch (state
.ctx
) {
2437 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2438 found
= !!page
->links
;
2444 ARSERT ("invalid document type");
2448 ret_v
= caml_alloc_small (1, 1);
2449 Field (ret_v
, 0) = Val_int (i
);
2454 unlock ("ml_findpage_with_links");
2460 enum { dir_first
, dir_last
};
2461 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2463 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2465 CAMLparam2 (ptr_v
, dir_v
);
2466 CAMLlocal2 (ret_v
, pos_v
);
2468 int dirtag
, i
, slinkindex
;
2469 struct slink
*found
= NULL
,*slink
;
2470 char *s
= String_val (ptr_v
);
2472 page
= parse_pointer ("ml_findlink", s
);
2473 ret_v
= Val_int (0);
2474 if (trylock ("ml_findlink")) {
2478 ensureslinks (page
);
2480 if (Is_block (dir_v
)) {
2481 dirtag
= Tag_val (dir_v
);
2483 case dir_first_visible
:
2485 int x0
, y0
, dir
, first_index
, last_index
;
2487 pos_v
= Field (dir_v
, 0);
2488 x0
= Int_val (Field (pos_v
, 0));
2489 y0
= Int_val (Field (pos_v
, 1));
2490 dir
= Int_val (Field (pos_v
, 2));
2495 last_index
= page
->slinkcount
;
2498 first_index
= page
->slinkcount
- 1;
2502 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2503 slink
= &page
->slinks
[i
];
2504 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2513 slinkindex
= Int_val (Field (dir_v
, 0));
2514 found
= &page
->slinks
[slinkindex
];
2515 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2516 slink
= &page
->slinks
[i
];
2517 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2525 slinkindex
= Int_val (Field (dir_v
, 0));
2526 found
= &page
->slinks
[slinkindex
];
2527 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2528 slink
= &page
->slinks
[i
];
2529 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2537 slinkindex
= Int_val (Field (dir_v
, 0));
2538 found
= &page
->slinks
[slinkindex
];
2539 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2540 slink
= &page
->slinks
[i
];
2541 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2549 slinkindex
= Int_val (Field (dir_v
, 0));
2550 found
= &page
->slinks
[slinkindex
];
2551 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2552 slink
= &page
->slinks
[i
];
2553 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2562 dirtag
= Int_val (dir_v
);
2565 found
= page
->slinks
;
2570 found
= page
->slinks
+ (page
->slinkcount
- 1);
2576 ret_v
= caml_alloc_small (2, 1);
2577 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2580 unlock ("ml_findlink");
2585 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2591 switch (link->dest.kind) { \
2592 case FZ_LINK_GOTO: \
2596 pageno = link->dest.ld.gotor.page; \
2600 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2601 p.y = link->dest.ld.gotor.lt.y; \
2602 p = fz_transform_point (pdim->lctm, p); \
2604 tup_v = caml_alloc_tuple (2); \
2605 ret_v = caml_alloc_small (1, ugoto); \
2606 Field (tup_v, 0) = Val_int (pageno); \
2607 Field (tup_v, 1) = Val_int (p.y); \
2608 Field (ret_v, 0) = tup_v; \
2613 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2614 ret_v = caml_alloc_small (1, uuri); \
2615 Field (ret_v, 0) = str_v; \
2618 case FZ_LINK_LAUNCH: \
2619 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2620 ret_v = caml_alloc_small (1, ulaunch); \
2621 Field (ret_v, 0) = str_v; \
2624 case FZ_LINK_NAMED: \
2625 str_v = caml_copy_string (link->dest.ld.named.named); \
2626 ret_v = caml_alloc_small (1, unamed); \
2627 Field (ret_v, 0) = str_v; \
2630 case FZ_LINK_GOTOR: \
2631 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2632 pageno = link->dest.ld.gotor.page; \
2633 tup_v = caml_alloc_tuple (2); \
2634 ret_v = caml_alloc_small (1, uremote); \
2635 Field (tup_v, 0) = str_v; \
2636 Field (tup_v, 1) = Val_int (pageno); \
2637 Field (ret_v, 0) = tup_v; \
2644 snprintf (buf, sizeof (buf), \
2645 "unhandled link kind %d", link->dest.kind); \
2646 str_v = caml_copy_string (buf); \
2647 ret_v = caml_alloc_small (1, uunexpected); \
2648 Field (ret_v, 0) = str_v; \
2654 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2656 CAMLparam2 (ptr_v
, n_v
);
2657 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2660 struct pagedim
*pdim
;
2661 char *s
= String_val (ptr_v
);
2663 ret_v
= Val_int (0);
2664 if (trylock ("ml_getlink")) {
2668 page
= parse_pointer ("ml_getlink", s
);
2669 ensureslinks (page
);
2670 pdim
= &state
.pagedims
[page
->pdimno
];
2671 link
= page
->slinks
[Int_val (n_v
)].link
;
2674 unlock ("ml_getlink");
2679 CAMLprim value
ml_getlinkcount (value ptr_v
)
2683 char *s
= String_val (ptr_v
);
2685 page
= parse_pointer ("ml_getlinkcount", s
);
2686 CAMLreturn (Val_int (page
->slinkcount
));
2689 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2691 CAMLparam2 (ptr_v
, n_v
);
2694 struct slink
*slink
;
2695 char *s
= String_val (ptr_v
);
2697 page
= parse_pointer ("ml_getlinkrect", s
);
2698 ret_v
= caml_alloc_tuple (4);
2699 if (trylock ("ml_getlinkrect")) {
2700 Field (ret_v
, 0) = Val_int (0);
2701 Field (ret_v
, 1) = Val_int (0);
2702 Field (ret_v
, 2) = Val_int (0);
2703 Field (ret_v
, 3) = Val_int (0);
2706 ensureslinks (page
);
2708 slink
= &page
->slinks
[Int_val (n_v
)];
2709 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2710 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2711 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2712 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2713 unlock ("ml_getlinkrect");
2719 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2721 CAMLparam3 (ptr_v
, x_v
, y_v
);
2722 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2725 char *s
= String_val (ptr_v
);
2726 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2727 struct pagedim
*pdim
;
2729 ret_v
= Val_int (0);
2730 if (trylock ("ml_whatsunder")) {
2734 page
= parse_pointer ("ml_whatsunder", s
);
2735 pdim
= &state
.pagedims
[page
->pdimno
];
2736 x
+= pdim
->bounds
.x0
;
2737 y
+= pdim
->bounds
.y0
;
2738 link
= getlink (page
, x
, y
);
2744 fz_text_block
*block
;
2747 for (block
= page
->text
->blocks
;
2748 block
< page
->text
->blocks
+ page
->text
->len
;
2753 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2756 for (line
= block
->lines
;
2757 line
< block
->lines
+ block
->len
;
2762 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2765 for (span
= line
->spans
;
2766 span
< line
->spans
+ line
->len
;
2771 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2774 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
2777 if (x
>= b
->x0
&& x
<= b
->x1
2778 && y
>= b
->y0
&& y
<= b
->y1
) {
2780 span
->style
->font
&& span
->style
->font
->name
2781 ? span
->style
->font
->name
2782 : "Span has no font name"
2784 FT_FaceRec
*face
= span
->style
->font
->ft_face
;
2785 if (face
&& face
->family_name
) {
2787 char *n1
= face
->family_name
;
2788 size_t l1
= strlen (n1
);
2789 size_t l2
= strlen (n2
);
2791 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2792 s
= malloc (l1
+ l2
+ 2);
2796 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2797 str_v
= caml_copy_string (s
);
2803 str_v
= caml_copy_string (n2
);
2805 ret_v
= caml_alloc_small (1, utext
);
2806 Field (ret_v
, 0) = str_v
;
2815 unlock ("ml_whatsunder");
2821 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2823 CAMLparam2 (ptr_v
, rect_v
);
2826 struct pagedim
*pdim
;
2827 int i
, x0
, x1
, y0
, y1
;
2828 char *s
= String_val (ptr_v
);
2830 fz_text_block
*block
;
2831 fz_text_span
*span
, *fspan
, *lspan
;
2832 fz_text_line
*line
, *fline
= NULL
, *lline
= NULL
;
2834 if (trylock ("ml_seltext")) {
2838 page
= parse_pointer ("ml_seltext", s
);
2841 pdim
= &state
.pagedims
[page
->pdimno
];
2842 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2843 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2844 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2845 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2848 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2849 glColor3ub (128, 128, 128);
2850 glRecti (x0
, y0
, x1
, y1
);
2851 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2854 fspan
= lspan
= NULL
;
2856 for (block
= page
->text
->blocks
;
2857 block
< page
->text
->blocks
+ page
->text
->len
;
2859 for (line
= block
->lines
;
2860 line
< block
->lines
+ block
->len
;
2862 for (span
= line
->spans
;
2863 span
< line
->spans
+ line
->len
;
2865 for (i
= 0; i
< span
->len
; ++i
) {
2866 b
= &span
->text
[i
].bbox
;
2869 if (x0
>= b
->x0
&& x0
<= b
->x1
2870 && y0
>= b
->y0
&& y0
<= b
->y1
) {
2876 if (x1
>= b
->x0
&& x1
<= b
->x1
2877 && y1
>= b
->y0
&& y1
<= b
->y1
) {
2883 if (0 && selected
) {
2884 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2885 glColor3ub (128, 128, 128);
2886 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2887 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2893 if (y1
< y0
|| x1
< x0
) {
2896 if (fspan
== lspan
) {
2901 if (fline
!= lline
) {
2920 page
->fmark
.span
= fspan
;
2923 page
->lmark
.span
= lspan
;
2925 unlock ("ml_seltext");
2928 CAMLreturn (Val_unit
);
2931 static int UNUSED_ATTR
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2936 for (i
= a
; i
<= b
; ++i
) {
2937 len
= fz_runetochar (buf
, span
->text
[i
].c
);
2938 ret
= fwrite (buf
, len
, 1, f
);
2941 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2942 len
, ret
, strerror (errno
));
2950 value
ml_popen (value UNUSED_ATTR u1
, value UNUSED_ATTR u2
)
2952 caml_failwith ("ml_popen not implemented under Cygwin");
2955 CAMLprim value
ml_popen (value command_v
, value fds_v
)
2957 CAMLparam2 (command_v
, fds_v
);
2958 CAMLlocal2 (l_v
, tup_v
);
2961 value earg_v
= Nothing
;
2962 posix_spawnattr_t attr
;
2963 posix_spawn_file_actions_t fa
;
2964 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
2966 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
2967 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
2970 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
2971 msg
= "posix_spawnattr_init";
2975 #ifdef POSIX_SPAWN_USEVFORK
2976 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
2977 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
2982 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
2985 tup_v
= Field (l_v
, 0);
2986 fd1
= Int_val (Field (tup_v
, 0));
2987 fd2
= Int_val (Field (tup_v
, 1));
2989 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
2990 msg
= "posix_spawn_file_actions_addclose";
2996 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
2997 msg
= "posix_spawn_file_actions_adddup2";
3004 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
3005 msg
= "posix_spawn";
3010 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
3011 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
3015 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
3016 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
3021 unix_error (ret
, msg
, earg_v
);
3023 CAMLreturn (Val_unit
);
3027 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
3035 fz_text_block
*block
;
3036 int fd
= Int_val (fd_v
);
3037 char *s
= String_val (ptr_v
);
3039 if (trylock ("ml_copysel")) {
3043 page
= parse_pointer ("ml_sopysel", s
);
3045 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
3046 fprintf (stderr
, "nothing to copy\n");
3050 f
= fdopen (fd
, "w");
3052 fprintf (stderr
, "failed to fopen sel pipe: %s\n",
3057 for (block
= page
->text
->blocks
;
3058 block
< page
->text
->blocks
+ page
->text
->len
;
3060 for (line
= block
->lines
;
3061 line
< block
->lines
+ block
->len
;
3063 for (span
= line
->spans
;
3064 span
< line
->spans
+ line
->len
;
3068 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
3069 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
3070 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
3073 if (pipespan (f
, span
, a
, b
)) {
3076 if (span
== line
->spans
+ line
->len
- 1) {
3077 if (putc ('\n', f
) == EOF
) {
3079 "failed break line on sel pipe: %s\n",
3084 if (span
== page
->lmark
.span
) {
3092 page
->lmark
.span
= NULL
;
3093 page
->fmark
.span
= NULL
;
3097 int ret
= fclose (f
);
3100 if (errno
!= ECHILD
) {
3101 fprintf (stderr
, "failed to close sel pipe: %s\n",
3107 unlock ("ml_copysel");
3112 fprintf (stderr
, "failed to close sel pipe: %s\n",
3116 CAMLreturn (Val_unit
);
3119 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
3121 CAMLparam1 (pagedimno_v
);
3123 int pagedimno
= Int_val (pagedimno_v
);
3126 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3127 if (trylock ("ml_getpdimrect")) {
3128 box
= fz_empty_rect
;
3131 box
= state
.pagedims
[pagedimno
].mediabox
;
3132 unlock ("ml_getpdimrect");
3135 Store_double_field (ret_v
, 0, box
.x0
);
3136 Store_double_field (ret_v
, 1, box
.x1
);
3137 Store_double_field (ret_v
, 2, box
.y0
);
3138 Store_double_field (ret_v
, 3, box
.y1
);
3143 static double getmaxw (void)
3149 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3152 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
3153 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
3156 maxw
= MAX (w
, maxw
);
3161 CAMLprim value
ml_getmaxw (value unit_v
)
3163 CAMLparam1 (unit_v
);
3167 if (trylock ("ml_getmaxw")) {
3171 unlock ("ml_getmaxw");
3173 ret_v
= caml_copy_double (maxw
);
3177 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
3178 value dw_v
, value cols_v
)
3180 CAMLparam3 (winw_v
, winh_v
, dw_v
);
3184 double maxw
= 0.0, maxh
= 0.0;
3186 double winw
= Int_val (winw_v
);
3187 double winh
= Int_val (winh_v
);
3188 double dw
= Int_val (dw_v
);
3189 double cols
= Int_val (cols_v
);
3190 double pw
= 1.0, ph
= 1.0, aspect
;
3192 if (trylock ("ml_zoom_for_height")) {
3196 if (state
.proportional
) {
3197 maxw
= getmaxw () / cols
;
3200 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3201 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
3204 rect
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
3206 x0
= MIN (rect
.x0
, rect
.x1
);
3207 x1
= MAX (rect
.x0
, rect
.x1
);
3208 y0
= MIN (rect
.y0
, rect
.y1
);
3209 y1
= MAX (rect
.y0
, rect
.y1
);
3211 w
= (x1
- x0
) / cols
;
3214 if (state
.proportional
) {
3216 scaledh
= h
* scale
;
3223 if (scaledh
> maxh
) {
3231 zoom
= (winh
* aspect
+ dw
) / winw
;
3233 unlock ("ml_zoom_for_height");
3235 ret_v
= caml_copy_double (zoom
);
3239 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3241 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3243 int pt
= Int_val(pt_v
);
3244 int x
= Int_val (x_v
);
3245 int y
= Int_val (y_v
);
3248 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3249 ret_v
= caml_copy_double (w
);
3253 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3255 CAMLparam2 (pt_v
, string_v
);
3257 int pt
= Int_val (pt_v
);
3260 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3261 ret_v
= caml_copy_double (w
);
3265 CAMLprim value
ml_getpagebox (value opaque_v
)
3267 CAMLparam1 (opaque_v
);
3271 char *s
= String_val (opaque_v
);
3272 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3274 ret_v
= caml_alloc_tuple (4);
3275 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
3276 dev
->hints
|= FZ_IGNORE_SHADE
;
3278 switch (page
->type
) {
3280 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
3284 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
3288 bbox
= fz_infinite_bbox
;
3292 fz_free_device (dev
);
3293 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3294 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3295 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3296 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3301 CAMLprim value
ml_setaalevel (value level_v
)
3303 CAMLparam1 (level_v
);
3305 state
.aalevel
= Int_val (level_v
);
3306 CAMLreturn (Val_unit
);
3310 #include <X11/Xlib.h>
3316 GLXDrawable drawable
;
3319 #include "keysym2ucs.c"
3321 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3323 CAMLparam1 (keysym_v
);
3325 KeySym keysym
= Int_val (keysym_v
);
3330 rune
= keysym2ucs (keysym
);
3331 len
= fz_runetochar (buf
, rune
);
3333 str_v
= caml_copy_string (buf
);
3337 CAMLprim value
ml_glx (value win_v
)
3340 XVisualInfo
*visual
;
3341 int screen
, wid
= Int_val (win_v
);
3342 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3344 glx
.dpy
= XOpenDisplay (NULL
);
3346 caml_failwith ("XOpenDisplay");
3349 screen
= DefaultScreen (glx
.dpy
);
3350 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
3352 XCloseDisplay (glx
.dpy
);
3354 caml_failwith ("glXChooseVisual");
3357 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
3360 XCloseDisplay (glx
.dpy
);
3362 caml_failwith ("glXCreateContext");
3365 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
3366 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3367 XCloseDisplay (glx
.dpy
);
3370 caml_failwith ("glXMakeCurrent");
3373 CAMLreturn (Val_unit
);
3376 CAMLprim value
ml_swapb (value unit_v
)
3378 CAMLparam1 (unit_v
);
3379 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
3380 CAMLreturn (Val_unit
);
3383 CAMLprim value
ml_glxsync (value unit_v
)
3385 CAMLparam1 (unit_v
);
3386 if (glx
.dpy
&& glx
.ctx
) {
3390 CAMLreturn (Val_unit
);
3393 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
3394 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
3396 CAMLprim value
ml_platform (value unit_v
)
3398 CAMLparam1 (unit_v
);
3399 int platid
= piunknown
;
3401 #if defined __linux__
3403 #elif defined __CYGWIN__
3405 #elif defined __DragonFly__
3406 platid
= pidragonflybsd
;
3407 #elif defined __FreeBSD__
3409 #elif defined __OpenBSD__
3411 #elif defined __NetBSD__
3413 #elif defined __sun__
3415 #elif defined __APPLE__
3418 CAMLreturn (Val_int (platid
));
3421 CAMLprim value
ml_cloexec (value fd_v
)
3424 int fd
= Int_val (fd_v
);
3426 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3427 uerror ("fcntl", Nothing
);
3429 CAMLreturn (Val_unit
);
3432 CAMLprim value
ml_getpbo (value w_v
, value h_v
, value cs_v
)
3434 CAMLparam2 (w_v
, h_v
);
3437 int w
= Int_val (w_v
);
3438 int h
= Int_val (h_v
);
3439 int cs
= Int_val (cs_v
);
3441 if (state
.pbo_usable
) {
3442 pbo
= calloc (sizeof (*pbo
), 1);
3444 err (1, "calloc pbo");
3456 errx (1, "ml_getpbo: invalid colorspace %d", cs
);
3459 state
.glGenBuffersARB (1, &pbo
->id
);
3460 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->id
);
3461 state
.glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->size
,
3462 NULL
, GL_STREAM_DRAW
);
3463 pbo
->ptr
= state
.glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
,
3465 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3467 fprintf (stderr
, "glMapBufferARB failed: %#x\n", glGetError ());
3468 state
.glDeleteBuffersARB (1, &pbo
->id
);
3470 ret_v
= caml_copy_string ("0");
3476 res
= snprintf (NULL
, 0, "%" FMT_ptr
, pbo
);
3478 err (1, "snprintf %" FMT_ptr
" failed", pbo
);
3482 err (1, "malloc %d bytes failed", res
+1);
3484 res
= sprintf (s
, "%" FMT_ptr
, pbo
);
3486 err (1, "sprintf %" FMT_ptr
" failed", pbo
);
3488 ret_v
= caml_copy_string (s
);
3493 ret_v
= caml_copy_string ("0");
3498 CAMLprim value
ml_freepbo (value s_v
)
3501 char *s
= String_val (s_v
);
3502 struct tile
*tile
= parse_pointer ("ml_freepbo", s
);
3505 state
.glDeleteBuffersARB (1, &tile
->pbo
->id
);
3507 tile
->pbo
->ptr
= NULL
;
3508 tile
->pbo
->size
= -1;
3510 CAMLreturn (Val_unit
);
3513 CAMLprim value
ml_unmappbo (value s_v
)
3516 char *s
= String_val (s_v
);
3517 struct tile
*tile
= parse_pointer ("ml_unmappbo", s
);
3520 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
3521 if (state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
) == GL_FALSE
) {
3522 errx (1, "glUnmapBufferARB failed: %#x\n", glGetError ());
3524 tile
->pbo
->ptr
= NULL
;
3525 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3527 CAMLreturn (Val_unit
);
3530 static void setuppbo (void)
3532 #define GGPA(n) *(void (**) ()) &state.n = glXGetProcAddress ((GLubyte *) #n)
3533 GGPA (glBindBufferARB
);
3534 if (state
.glBindBufferARB
) {
3535 GGPA (glUnmapBufferARB
);
3536 if (state
.glUnmapBufferARB
) {
3537 GGPA (glMapBufferARB
);
3538 if (state
.glMapBufferARB
) {
3539 GGPA (glBufferDataARB
);
3540 if (state
.glBufferDataARB
) {
3541 GGPA (glGenBuffersARB
);
3542 if (state
.glGenBuffersARB
) {
3543 GGPA (glDeleteBuffersARB
);
3544 if (state
.glDeleteBuffersARB
) {
3545 state
.pbo_usable
= 1;
3555 CAMLprim value
ml_pbo_usable (value unit_v
)
3557 CAMLparam1 (unit_v
);
3558 CAMLreturn (Val_bool (state
.pbo_usable
));
3561 CAMLprim value
ml_init (value pipe_v
, value params_v
)
3563 CAMLparam2 (pipe_v
, params_v
);
3564 CAMLlocal2 (trim_v
, fuzz_v
);
3571 struct sigaction sa
;
3573 state
.cr
= Int_val (Field (pipe_v
, 0));
3574 state
.cw
= Int_val (Field (pipe_v
, 1));
3575 state
.rotate
= Int_val (Field (params_v
, 0));
3576 state
.proportional
= Bool_val (Field (params_v
, 1));
3577 trim_v
= Field (params_v
, 2);
3578 texcount
= Int_val (Field (params_v
, 3));
3579 state
.sliceheight
= Int_val (Field (params_v
, 4));
3580 mustoresize
= Int_val (Field (params_v
, 5));
3581 colorspace
= Int_val (Field (params_v
, 6));
3582 fontpath
= String_val (Field (params_v
, 7));
3583 state
.trimcachepath
= strdup (String_val (Field (params_v
, 8)));
3584 if (!state
.trimcachepath
) {
3585 fprintf (stderr
, "failed to strdup trimcachepath: %s\n",
3588 haspboext
= Bool_val (Field (params_v
, 9));
3590 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
3592 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
3593 fuzz_v
= Field (trim_v
, 1);
3594 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
3595 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
3596 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
3597 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
3599 set_tex_params (colorspace
);
3602 state
.face
= load_font (fontpath
);
3606 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
3608 state
.face
= load_builtin_font (base
, len
);
3610 if (!state
.face
) _exit (1);
3612 realloctexts (texcount
);
3619 sa
.sa_handler
= SIG_IGN
;
3620 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
3622 sa
.sa_handler
= SIG_DFL
;
3623 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
3625 if (sigemptyset (&sa
.sa_mask
)) {
3626 err (1, "sigemptyset");
3628 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
3629 err (1, "sigaction");
3632 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
3634 errx (1, "pthread_create: %s", strerror (ret
));
3637 CAMLreturn (Val_unit
);