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 void (*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 freeemptypdfpage (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
;
598 static int cacheline32bytes
;
600 static void __attribute__ ((constructor
)) clcheck (void)
602 char **envp
= environ
;
607 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
609 cacheline32bytes
= auxv
[1] == 32;
615 static void OPTIMIZE_ATTR (3) clearpixmap (fz_pixmap
*pixmap
)
617 size_t size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
618 if (cacheline32bytes
&& size
> 32) {
619 intptr_t a1
, a2
, diff
;
621 vector
unsigned char v
= vec_splat_u8 (-1);
622 vector
unsigned char *p
;
624 a1
= a2
= (intptr_t) pixmap
->samples
;
625 a2
= (a1
+ 31) & ~31;
630 while (a1
!= a2
) *(char *) a1
++ = 0xff;
631 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
632 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
634 vec_st (v
, i
+ 16, p
);
636 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
638 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
641 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
644 static fz_matrix
trimctm (pdf_page
*page
, int pindex
)
647 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
649 if (!pdim
->tctmready
) {
650 if (state
.trimmargins
) {
653 ctm
= fz_concat (fz_rotate (-pdim
->rotate
), fz_scale (1, -1));
654 realbox
= fz_transform_rect (ctm
, pdim
->mediabox
);
655 ctm
= fz_concat (ctm
, fz_translate (-realbox
.x0
, -realbox
.y0
));
656 ctm
= fz_concat (fz_invert_matrix (page
->ctm
), ctm
);
667 static fz_matrix
pagectm (struct page
*page
)
669 if (page
->type
== DPDF
) {
670 return fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
671 state
.pagedims
[page
->pdimno
].ctm
);
675 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
677 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
678 ctm
= fz_concat (fz_translate (-pdim
->mediabox
.x0
,
679 -pdim
->mediabox
.y0
), ctm
);
684 static void *loadpage (int pageno
, int pindex
)
687 struct page
*page
= NULL
;
689 page
= calloc (sizeof (struct page
), 1);
691 err (1, "calloc page %d", pageno
);
694 page
->dlist
= fz_new_display_list (state
.ctx
);
695 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
696 switch (state
.type
) {
699 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
700 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, fz_identity
, NULL
);
701 page
->freepage
= freepdfpage
;
703 fz_catch (state
.ctx
) {
705 page
->freepage
= freeemptypdfpage
;
710 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
711 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, fz_identity
, NULL
);
712 page
->freepage
= freexpspage
;
716 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
717 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
, fz_identity
, NULL
);
718 page
->freepage
= freecbzpage
;
721 fz_free_device (dev
);
723 page
->pdimno
= pindex
;
724 page
->pageno
= pageno
;
725 page
->sgen
= state
.gen
;
726 page
->tgen
= state
.gen
;
727 page
->type
= state
.type
;
732 static struct tile
*alloctile (int h
)
739 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
740 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
741 tile
= calloc (tilesize
, 1);
743 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
745 for (i
= 0; i
< slicecount
; ++i
) {
746 int sh
= MIN (h
, state
.sliceheight
);
747 tile
->slices
[i
].h
= sh
;
748 tile
->slices
[i
].texindex
= -1;
751 tile
->slicecount
= slicecount
;
752 tile
->sliceheight
= state
.sliceheight
;
762 static void obs_fill_image (fz_device
*dev
, fz_image
*image
, fz_matrix ctm
,
765 struct obs
*obs
= dev
->user
;
767 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
768 fz_bbox b
= fz_round_rect (fz_transform_rect (ctm
, fz_unit_rect
));
769 b
= fz_intersect_bbox (b
, obs
->b
);
770 obs
->cured
= b
.x0
== obs
->b
.x0
773 && b
.y1
== obs
->b
.y1
;
777 static int obscured (struct page
*page
, fz_bbox bbox
)
782 memset (&dev
, 0, sizeof (dev
));
783 memset (&obs
, 0, sizeof (obs
));
788 dev
.fill_image
= obs_fill_image
;
790 fz_run_display_list (page
->dlist
, &dev
, pagectm (page
), bbox
, NULL
);
793 #define OBSCURED obscured
795 #define OBSCURED(a, b) 0
798 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
,
804 struct pagedim
*pdim
;
806 tile
= alloctile (h
);
807 pdim
= &state
.pagedims
[page
->pdimno
];
812 bbox
.x1
= bbox
.x0
+ w
;
813 bbox
.y1
= bbox
.y0
+ h
;
816 if (state
.pig
->w
== w
818 && state
.pig
->colorspace
== state
.colorspace
) {
819 tile
->pixmap
= state
.pig
;
820 tile
->pixmap
->x
= bbox
.x0
;
821 tile
->pixmap
->y
= bbox
.y0
;
824 fz_drop_pixmap (state
.ctx
, state
.pig
);
831 fz_new_pixmap_with_bbox_and_data (state
.ctx
, state
.colorspace
,
837 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, bbox
);
843 if (!page
->u
.ptr
|| ((w
< 128 && h
< 128) || !OBSCURED (page
, bbox
))) {
844 clearpixmap (tile
->pixmap
);
846 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
847 fz_run_display_list (page
->dlist
, dev
, pagectm (page
), bbox
, NULL
);
848 fz_free_device (dev
);
853 static void initpdims (void)
856 int pageno
, trim
, show
;
862 if (state
.trimmargins
&& state
.trimcachepath
) {
863 trimf
= fopen (state
.trimcachepath
, "rb");
865 trimf
= fopen (state
.trimcachepath
, "wb");
869 for (pageno
= 0; pageno
< state
.pagecount
; ++pageno
) {
874 switch (state
.type
) {
876 pdf_obj
*pageobj
= state
.u
.pdf
->page_objs
[pageno
];
878 if (state
.trimmargins
) {
883 page
= pdf_load_page (state
.u
.pdf
, pageno
);
884 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
885 trim
= state
.trimanew
|| !obj
;
892 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
893 dev
->hints
|= FZ_IGNORE_SHADE
;
894 ctm
= fz_invert_matrix (page
->ctm
);
895 pdf_run_page (state
.u
.pdf
, page
, dev
, fz_identity
, NULL
);
896 fz_free_device (dev
);
898 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
899 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
900 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
901 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
902 rect
= fz_transform_rect (ctm
, rect
);
903 rect
= fz_intersect_rect (rect
, page
->mediabox
);
905 if (fz_is_empty_rect (rect
)) {
906 mediabox
= page
->mediabox
;
912 obj
= pdf_new_array (state
.ctx
, 4);
913 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x0
));
914 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y0
));
915 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.x1
));
916 pdf_array_push (obj
, pdf_new_real (state
.ctx
, mediabox
.y1
));
917 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
920 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
921 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
922 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
923 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
926 rotate
= page
->rotate
;
927 pdf_free_page (state
.u
.pdf
, page
);
929 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
931 printd ("progress %f Trimming %d",
932 (double) (pageno
+ 1) / state
.pagecount
,
936 fz_catch (state
.ctx
) {
942 mediabox
= pdf_to_rect (state
.ctx
,
943 pdf_dict_gets (pageobj
, "MediaBox"));
944 if (fz_is_empty_rect (mediabox
)) {
945 fprintf (stderr
, "cannot find page size for page %d\n",
953 cropbox
= pdf_to_rect (state
.ctx
,
954 pdf_dict_gets (pageobj
, "CropBox"));
955 if (!fz_is_empty_rect (cropbox
)) {
956 mediabox
= fz_intersect_rect (mediabox
, cropbox
);
958 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
967 page
= xps_load_page (state
.u
.xps
, pageno
);
968 mediabox
= xps_bound_page (state
.u
.xps
, page
);
970 if (state
.trimmargins
) {
975 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
976 dev
->hints
|= FZ_IGNORE_SHADE
;
977 xps_run_page (state
.u
.xps
, page
, dev
, fz_identity
, NULL
);
978 fz_free_device (dev
);
980 rect
.x0
= bbox
.x0
+ state
.trimfuzz
.x0
;
981 rect
.x1
= bbox
.x1
+ state
.trimfuzz
.x1
;
982 rect
.y0
= bbox
.y0
+ state
.trimfuzz
.y0
;
983 rect
.y1
= bbox
.y1
+ state
.trimfuzz
.y1
;
984 rect
= fz_intersect_rect (rect
, mediabox
);
986 if (!fz_is_empty_rect (rect
)) {
990 xps_free_page (state
.u
.xps
, page
);
991 printd ("progress %f loading %d",
992 (double) (pageno
+ 1) / state
.pagecount
,
1000 if (state
.trimmargins
&& trimw
) {
1003 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1004 mediabox
= cbz_bound_page (state
.u
.cbz
, page
);
1005 cbz_free_page (state
.u
.cbz
, page
);
1006 printd ("progress %f Trimming %d",
1007 (double) (pageno
+ 1) / state
.pagecount
,
1010 int n
= fwrite (&mediabox
, sizeof (mediabox
), 1, trimf
);
1012 err (1, "fwrite trim mediabox");
1018 int n
= fread (&mediabox
, sizeof (mediabox
), 1, trimf
);
1020 err (1, "fread trim mediabox");
1024 mediabox
.x0
= mediabox
.y0
= 0;
1033 ARSERT (0 && state
.type
);
1036 if (state
.pagedimcount
== 0
1037 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
1038 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
1041 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
1042 state
.pagedims
= realloc (state
.pagedims
, size
);
1043 if (!state
.pagedims
) {
1044 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
1045 size
, state
.pagedimcount
+ 1);
1048 p
= &state
.pagedims
[state
.pagedimcount
++];
1050 p
->mediabox
= mediabox
;
1055 if (state
.trimmargins
) {
1056 printd ("progress 1 Trimmed %d pages in %f seconds",
1057 state
.pagecount
, end
- start
);
1060 printd ("vmsg Processed %d pages in %f seconds",
1061 state
.pagecount
, end
- start
);
1065 if (fclose (trimf
)) {
1071 static void layout (void)
1076 double zoom
, w
, maxw
= 0;
1077 struct pagedim
*p
= state
.pagedims
;
1079 if (state
.proportional
) {
1080 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1081 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1083 w
= box
.x1
- box
.x0
;
1084 maxw
= MAX (w
, maxw
);
1089 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
, ++p
) {
1092 ctm
= fz_rotate (state
.rotate
);
1093 box
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
1095 w
= box
.x1
- box
.x0
;
1097 if (state
.proportional
) {
1098 double scale
= w
/ maxw
;
1099 zoom
= (state
.w
/ w
) * scale
;
1105 p
->zoomctm
= fz_scale (zoom
, zoom
);
1106 ctm
= fz_concat (p
->zoomctm
, ctm
);
1108 p
->pagebox
= fz_transform_rect (fz_rotate (p
->rotate
), p
->mediabox
);
1109 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1110 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1113 bbox
= fz_round_rect (fz_transform_rect (ctm
, p
->pagebox
));
1116 p
->left
= state
.proportional
? ((maxw
- w
) * zoom
) / 2.0 : 0;
1120 ctm
= fz_concat (ctm
, fz_translate (0, -p
->mediabox
.y1
));
1121 ctm
= fz_concat (ctm
, fz_scale (zoom
, -zoom
));
1122 ctm
= fz_concat (ctm
, fz_rotate (p
->rotate
+ state
.rotate
));
1128 while (p
-- != state
.pagedims
) {
1129 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1130 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1131 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1132 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1136 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1140 static void recurse_outline (fz_outline
*outline
, int level
)
1145 struct pagedim
*pdim
= state
.pagedims
;
1147 dest
= &outline
->dest
;
1148 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1149 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1151 pdim
= &state
.pagedims
[i
];
1153 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1156 p
.y
= dest
->ld
.gotor
.lt
.y
;
1157 p
= fz_transform_point (pdim
->lctm
, p
);
1160 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1164 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1165 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1167 printd ("o %d %d %d %d %s",
1168 level
, dest
->ld
.gotor
.page
, top
, h
, outline
->title
);
1170 if (outline
->down
) {
1171 recurse_outline (outline
->down
, level
+ 1);
1173 outline
= outline
->next
;
1177 static void process_outline (void)
1179 fz_outline
*outline
;
1181 if (!state
.needoutline
) return;
1183 state
.needoutline
= 0;
1184 switch (state
.type
) {
1186 outline
= pdf_load_outline (state
.u
.pdf
);
1189 outline
= xps_load_outline (state
.u
.xps
);
1196 recurse_outline (outline
, 0);
1197 fz_free_outline (state
.ctx
, outline
);
1201 static char *strofspan (fz_text_span
*span
)
1206 size_t size
= 0, cap
= 80;
1208 p
= malloc (cap
+ 1);
1209 if (!p
) return NULL
;
1211 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1212 int n
= fz_runetochar (utf8
, ch
->c
);
1213 if (size
+ n
> cap
) {
1215 p
= realloc (p
, cap
+ 1);
1216 if (!p
) return NULL
;
1219 memcpy (p
+ size
, utf8
, n
);
1226 static int matchspan (regex_t
*re
, fz_text_span
*span
, fz_matrix ctm
,
1227 int stop
, int pageno
, double start
)
1234 fz_point p1
, p2
, p3
, p4
;
1236 p
= strofspan (span
);
1239 ret
= regexec (re
, p
, 1, &rm
, 0);
1242 if (ret
!= REG_NOMATCH
) {
1245 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1246 printd ("msg regexec error `%.*s'",
1247 (int) size
, errbuf
);
1254 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1255 c
+= fz_runelen (span
->text
[a
].c
);
1257 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1258 c
+= fz_runelen (span
->text
[b
].c
);
1261 if (fz_runelen (span
->text
[b
].c
) > 1) {
1264 sb
= &span
->text
[MIN (a
, l
-1)].bbox
;
1265 eb
= &span
->text
[MIN (b
, l
-1)].bbox
;
1277 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1284 printd ("progress 1 found at %d `%.*s' in %f sec",
1285 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1289 printd ("match %d %d %f %f %f %f %f %f %f %f",
1301 static int compareblocks (const void *l
, const void *r
)
1303 fz_text_block
const *ls
= l
;
1304 fz_text_block
const* rs
= r
;
1305 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1308 /* wishful thinking function */
1309 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1314 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1316 fz_text_sheet
*sheet
;
1317 struct pagedim
*pdim
, *pdimprev
;
1318 int stop
= 0, niters
= 0;
1321 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1325 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1326 if (niters
++ == 5) {
1329 printd ("progress 1 attention requested aborting search at %d",
1334 printd ("progress %f searching in page %d",
1335 (double) (pageno
+ 1) / state
.pagecount
,
1340 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1341 pdim
= &state
.pagedims
[i
];
1342 if (pdim
->pageno
== pageno
) {
1345 if (pdim
->pageno
> pageno
) {
1354 sheet
= fz_new_text_sheet (state
.ctx
);
1355 text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
1356 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1358 switch (state
.type
) {
1361 fz_try (state
.ctx
) {
1362 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1363 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1364 ctm
= fz_concat (pdim
->tctm
, pdim
->zoomctm
);
1365 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, ctm
, NULL
);
1367 fz_catch (state
.ctx
) {
1368 fz_free_device (tdev
);
1375 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1377 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, ctm
, NULL
);
1381 ARSERT (0 && state
.type
);
1384 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1385 fz_free_device (tdev
);
1387 for (j
= 0; j
< text
->len
; ++j
) {
1389 fz_text_block
*block
;
1391 block
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1393 for (k
= 0; k
< block
->len
; ++k
) {
1398 line
= &block
->lines
[k
];
1399 if (line
->bbox
.y0
< y
+ 1) continue;
1402 line
= &block
->lines
[block
->len
- 1 - k
];
1403 if (line
->bbox
.y0
> y
- 1) continue;
1406 for (span
= line
->spans
;
1407 span
< line
->spans
+ line
->len
;
1410 switch (matchspan (re
, span
, ctm
, stop
, pageno
, start
)) {
1412 case 1: stop
= 1; break;
1413 case -1: stop
= 1; goto endloop
;
1428 fz_free_text_page (state
.ctx
, text
);
1429 fz_free_text_sheet (state
.ctx
, sheet
);
1431 state
.freepage (u
.ptr
);
1436 printd ("progress 1 no matches %f sec", end
- start
);
1438 printd ("clearrects");
1441 static void set_tex_params (int colorspace
)
1448 switch (colorspace
) {
1450 state
.texiform
= GL_RGBA8
;
1451 state
.texform
= GL_RGBA
;
1452 state
.texty
= GL_UNSIGNED_BYTE
;
1453 state
.colorspace
= fz_device_rgb
;
1456 state
.texiform
= GL_RGBA8
;
1457 state
.texform
= GL_BGRA
;
1458 state
.texty
= endianness
.s
> 1
1459 ? GL_UNSIGNED_INT_8_8_8_8
1460 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1461 state
.colorspace
= fz_device_bgr
;
1464 state
.texiform
= GL_LUMINANCE_ALPHA
;
1465 state
.texform
= GL_LUMINANCE_ALPHA
;
1466 state
.texty
= GL_UNSIGNED_BYTE
;
1467 state
.colorspace
= fz_device_gray
;
1470 errx (1, "invalid colorspce %d", colorspace
);
1474 static void realloctexts (int texcount
)
1478 if (texcount
== state
.texcount
) return;
1480 if (texcount
< state
.texcount
) {
1481 glDeleteTextures (state
.texcount
- texcount
,
1482 state
.texids
+ texcount
);
1485 size
= texcount
* sizeof (*state
.texids
);
1486 state
.texids
= realloc (state
.texids
, size
);
1487 if (!state
.texids
) {
1488 err (1, "realloc texids %" FMT_s
, size
);
1491 size
= texcount
* sizeof (*state
.texowners
);
1492 state
.texowners
= realloc (state
.texowners
, size
);
1493 if (!state
.texowners
) {
1494 err (1, "realloc texowners %" FMT_s
, size
);
1496 if (texcount
> state
.texcount
) {
1499 glGenTextures (texcount
- state
.texcount
,
1500 state
.texids
+ state
.texcount
);
1501 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1502 state
.texowners
[i
].w
= -1;
1503 state
.texowners
[i
].slice
= NULL
;
1506 state
.texcount
= texcount
;
1510 static char *mbtoutf8 (char *s
)
1516 len
= mbstowcs (NULL
, s
, strlen (s
));
1521 if (len
== (size_t) -1) {
1526 tmp
= malloc (len
* sizeof (wchar_t));
1531 ret
= mbstowcs (tmp
, s
, len
);
1532 if (ret
== (size_t) -1) {
1538 for (i
= 0; i
< ret
; ++i
) {
1539 len
+= fz_runelen (tmp
[i
]);
1542 p
= r
= malloc (len
+ 1);
1548 for (i
= 0; i
< ret
; ++i
) {
1549 p
+= fz_runetochar (p
, tmp
[i
]);
1556 CAMLprim value
ml_mbtoutf8 (value s_v
)
1562 s
= String_val (s_v
);
1568 ret_v
= caml_copy_string (r
);
1574 static void * mainloop (void *unused
)
1577 int len
, ret
, oldlen
= 0;
1582 errx (1, "readlen returned 0");
1585 if (oldlen
< len
+ 1) {
1586 p
= realloc (p
, len
+ 1);
1588 err (1, "realloc %d failed", len
+ 1);
1595 if (!strncmp ("open", p
, 4)) {
1598 char *filename
= p
+ 5;
1601 filenamelen
= strlen (filename
);
1602 password
= filename
+ filenamelen
+ 1;
1604 openxref (filename
, password
);
1607 utf8filename
= mbtoutf8 (filename
);
1608 printd ("msg Opened %s (press h/F1 to get help)", utf8filename
);
1609 if (utf8filename
!= filename
) {
1610 free (utf8filename
);
1612 state
.needoutline
= 1;
1614 else if (!strncmp ("cs", p
, 2)) {
1617 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1619 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1622 set_tex_params (colorspace
);
1623 for (i
= 0; i
< state
.texcount
; ++i
) {
1624 state
.texowners
[i
].w
= -1;
1625 state
.texowners
[i
].slice
= NULL
;
1629 else if (!strncmp ("freepage", p
, 8)) {
1632 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1634 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1638 else if (!strncmp ("freetile", p
, 8)) {
1641 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1643 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1647 else if (!strncmp ("search", p
, 6)) {
1648 int icase
, pageno
, y
, ret
, len2
, forward
;
1652 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
1653 &icase
, &pageno
, &y
, &forward
, &len2
);
1655 errx (1, "malformed search `%s' ret=%d", p
, ret
);
1658 pattern
= p
+ 6 + len2
;
1659 ret
= regcomp (&re
, pattern
,
1660 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
1665 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
1666 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
1669 search (&re
, pageno
, y
, forward
);
1673 else if (!strncmp ("geometry", p
, 8)) {
1677 ret
= sscanf (p
+ 8, " %d %d", &w
, &h
);
1679 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
1687 for (i
= 0; i
< state
.texcount
; ++i
) {
1688 state
.texowners
[i
].slice
= NULL
;
1694 unlock ("geometry");
1695 printd ("continue %d", state
.pagecount
);
1697 else if (!strncmp ("reqlayout", p
, 9)) {
1698 int rotate
, proportional
;
1701 ret
= sscanf (p
+ 9, " %d %d", &rotate
, &proportional
);
1703 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
1706 if (state
.rotate
!= rotate
|| state
.proportional
!= proportional
) {
1709 state
.rotate
= rotate
;
1710 state
.proportional
= proportional
;
1714 unlock ("reqlayout");
1715 printd ("continue %d", state
.pagecount
);
1717 else if (!strncmp ("page", p
, 4)) {
1720 int pageno
, pindex
, ret
;
1722 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
1724 errx (1, "bad render line `%.*s' ret=%d", len
, p
, ret
);
1729 page
= loadpage (pageno
, pindex
);
1733 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
1735 else if (!strncmp ("tile", p
, 4)) {
1736 int x
, y
, w
, h
, ret
;
1742 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d %" FMT_ptr
,
1743 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
, &data
);
1745 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
1750 tile
= rendertile (page
, x
, y
, w
, h
, data
);
1754 printd ("tile %d %d %" FMT_ptr
" %u %f",
1756 FMT_ptr_cast2 (tile
),
1757 tile
->w
* tile
->h
* tile
->pixmap
->n
,
1760 else if (!strncmp ("settrim", p
, 7)) {
1764 ret
= sscanf (p
+ 7, " %d %d %d %d %d", &trimmargins
,
1765 &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
1767 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
1771 state
.trimmargins
= trimmargins
;
1772 state
.needoutline
= 1;
1773 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
1775 state
.trimfuzz
= fuzz
;
1777 state
.pagedimcount
= 0;
1778 free (state
.pagedims
);
1779 state
.pagedims
= NULL
;
1784 printd ("continue %d", state
.pagecount
);
1786 else if (!strncmp ("sliceh", p
, 6)) {
1789 ret
= sscanf (p
+ 6, " %d", &h
);
1791 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
1793 if (h
!= state
.sliceheight
) {
1796 state
.sliceheight
= h
;
1797 for (i
= 0; i
< state
.texcount
; ++i
) {
1798 state
.texowners
[i
].w
= -1;
1799 state
.texowners
[i
].h
= -1;
1800 state
.texowners
[i
].slice
= NULL
;
1804 else if (!strncmp ("interrupt", p
, 9)) {
1805 printd ("vmsg interrupted");
1808 errx (1, "unknown command %.*s", len
, p
);
1814 CAMLprim value
ml_realloctexts (value texcount_v
)
1816 CAMLparam1 (texcount_v
);
1819 if (trylock ("ml_realloctexts")) {
1823 realloctexts (Int_val (texcount_v
));
1825 unlock ("ml_realloctexts");
1828 CAMLreturn (Val_bool (ok
));
1831 static void showsel (struct page
*page
, int ox
, int oy
)
1837 fz_text_block
*block
;
1838 struct mark first
, last
;
1840 first
= page
->fmark
;
1843 if (!first
.span
|| !last
.span
) return;
1845 glEnable (GL_BLEND
);
1846 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
1847 glColor4f (0.5f
, 0.5f
, 0.0f
, 0.6f
);
1849 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1850 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1851 for (block
= page
->text
->blocks
;
1852 block
< page
->text
->blocks
+ page
->text
->len
;
1854 for (line
= block
->lines
;
1855 line
< block
->lines
+ block
->len
;
1857 for (span
= line
->spans
;
1858 span
< line
->spans
+ line
->len
;
1862 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
1867 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
1869 j
= MIN (first
.i
, last
.i
);
1870 k
= MAX (first
.i
, last
.i
);
1872 else if (span
== first
.span
) {
1876 else if (span
== last
.span
) {
1882 for (i
= j
; i
<= k
; ++i
) {
1883 fz_bbox b
= fz_round_rect (span
->text
[i
].bbox
);
1884 bbox
= fz_union_bbox (bbox
, b
);
1886 lprintf ("%d %d %d %d oy=%d ox=%d\n",
1893 glRecti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
1894 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
1895 if (span
== last
.span
) {
1903 glDisable (GL_BLEND
);
1908 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
1911 fz_link
*link
, *links
;
1913 switch (page
->type
) {
1915 links
= page
->u
.pdfpage
->links
;
1919 links
= page
->u
.xpspage
->links
;
1926 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
1927 glEnable (GL_LINE_STIPPLE
);
1928 glLineStipple (0.5, 0xcccc);
1930 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
1931 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
1932 ctm
= fz_concat (pagectm (page
), fz_translate (xoff
, yoff
));
1935 for (link
= links
; link
; link
= link
->next
) {
1936 fz_point p1
, p2
, p3
, p4
;
1938 p1
.x
= link
->rect
.x0
;
1939 p1
.y
= link
->rect
.y0
;
1941 p2
.x
= link
->rect
.x1
;
1942 p2
.y
= link
->rect
.y0
;
1944 p3
.x
= link
->rect
.x1
;
1945 p3
.y
= link
->rect
.y1
;
1947 p4
.x
= link
->rect
.x0
;
1948 p4
.y
= link
->rect
.y1
;
1950 p1
= fz_transform_point (ctm
, p1
);
1951 p2
= fz_transform_point (ctm
, p2
);
1952 p3
= fz_transform_point (ctm
, p3
);
1953 p4
= fz_transform_point (ctm
, p4
);
1955 switch (link
->dest
.kind
) {
1956 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
1957 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
1958 default: glColor3ub (0, 0, 0); break;
1961 glVertex2f (p1
.x
, p1
.y
);
1962 glVertex2f (p2
.x
, p2
.y
);
1963 glVertex2f (p3
.x
, p3
.y
);
1964 glVertex2f (p4
.x
, p4
.y
);
1968 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
1969 glDisable (GL_LINE_STIPPLE
);
1972 static int compareslinks (const void *l
, const void *r
)
1974 struct slink
const *ls
= l
;
1975 struct slink
const *rs
= r
;
1976 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
1977 return rs
->bbox
.x0
- rs
->bbox
.x0
;
1979 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1982 static void droptext (struct page
*page
)
1985 fz_free_text_page (state
.ctx
, page
->text
);
1988 page
->fmark
.span
= NULL
;
1989 page
->lmark
.span
= NULL
;
1993 fz_free_text_sheet (state
.ctx
, page
->sheet
);
1997 static void dropslinks (struct page
*page
)
2000 free (page
->slinks
);
2001 page
->slinks
= NULL
;
2002 page
->slinkcount
= 0;
2006 static void ensureslinks (struct page
*page
)
2010 size_t slinksize
= sizeof (*page
->slinks
);
2011 fz_link
*link
, *links
;
2013 if (state
.gen
!= page
->sgen
) {
2015 page
->sgen
= state
.gen
;
2017 if (page
->slinks
) return;
2019 switch (page
->type
) {
2021 links
= page
->u
.pdfpage
->links
;
2022 ctm
= fz_concat (trimctm (page
->u
.pdfpage
, page
->pdimno
),
2023 state
.pagedims
[page
->pdimno
].ctm
);
2027 links
= page
->u
.xpspage
->links
;
2028 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
2035 for (link
= links
; link
; link
= link
->next
) {
2039 page
->slinkcount
= count
;
2040 page
->slinks
= calloc (count
, slinksize
);
2041 if (!page
->slinks
) {
2042 err (1, "realloc slinks %d", count
);
2045 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
2046 page
->slinks
[i
].link
= link
;
2047 page
->slinks
[i
].bbox
=
2048 fz_round_rect (fz_transform_rect (ctm
, link
->rect
));
2050 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
2054 /* slightly tweaked fmt_ulong by D.J. Bernstein */
2055 static void fmt_linkn (char *s
, unsigned int u
)
2057 unsigned int len
; unsigned int q
;
2058 int zma
= 'z' - 'a' + 1;
2060 while (q
> zma
- 1) { ++len
; q
/= zma
; }
2063 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
2064 /* handles u == 0 */
2069 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
2070 int noff
, char *targ
, int tlen
, int hfsize
)
2074 struct slink
*slink
;
2075 double x0
, y0
, x1
, y1
, w
;
2077 ensureslinks (page
);
2078 glColor3ub (0xc3, 0xb0, 0x91);
2079 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2080 fmt_linkn (buf
, i
+ noff
);
2081 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2082 slink
= &page
->slinks
[i
];
2084 x0
= slink
->bbox
.x0
+ xoff
- 5;
2085 y1
= slink
->bbox
.y0
+ yoff
- 5;
2086 y0
= y1
+ 10 + hfsize
;
2087 w
= measure_string (state
.face
, hfsize
, buf
);
2089 glRectd (x0
, y0
, x1
, y1
);
2093 glEnable (GL_BLEND
);
2094 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2095 glEnable (GL_TEXTURE_2D
);
2096 glColor3ub (0, 0, 0);
2097 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2098 fmt_linkn (buf
, i
+ noff
);
2099 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2100 slink
= &page
->slinks
[i
];
2102 x0
= slink
->bbox
.x0
+ xoff
;
2103 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
2104 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
2107 glDisable (GL_TEXTURE_2D
);
2108 glDisable (GL_BLEND
);
2112 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
2115 struct slice
*slice1
;
2116 unsigned char *texdata
;
2119 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
2120 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
2122 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
2123 && state
.texowners
[slice
->texindex
].slice
== slice
) {
2124 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
2128 int texindex
= state
.texindex
++ % state
.texcount
;
2130 if (state
.texowners
[texindex
].w
== tile
->w
) {
2131 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2135 state
.texowners
[texindex
].h
= slice
->h
;
2139 state
.texowners
[texindex
].h
= slice
->h
;
2142 state
.texowners
[texindex
].w
= tile
->w
;
2143 state
.texowners
[texindex
].slice
= slice
;
2144 slice
->texindex
= texindex
;
2146 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2148 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
2152 texdata
= tile
->pixmap
->samples
;
2155 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2167 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2179 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
2184 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2186 CAMLparam2 (args_v
, ptr_v
);
2187 int dispx
= Int_val (Field (args_v
, 0));
2188 int dispy
= Int_val (Field (args_v
, 1));
2189 int dispw
= Int_val (Field (args_v
, 2));
2190 int disph
= Int_val (Field (args_v
, 3));
2191 int tilex
= Int_val (Field (args_v
, 4));
2192 int tiley
= Int_val (Field (args_v
, 5));
2193 char *s
= String_val (ptr_v
);
2194 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2196 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2198 int slicey
, firstslice
;
2199 struct slice
*slice
;
2201 firstslice
= tiley
/ tile
->sliceheight
;
2202 slice
= &tile
->slices
[firstslice
];
2203 slicey
= tiley
% tile
->sliceheight
;
2208 dh
= slice
->h
- slicey
;
2209 dh
= MIN (disph
, dh
);
2210 uploadslice (tile
, slice
);
2214 glTexCoord2i (tilex
, slicey
);
2215 glVertex2i (dispx
, dispy
);
2217 glTexCoord2i (tilex
+dispw
, slicey
);
2218 glVertex2i (dispx
+dispw
, dispy
);
2220 glTexCoord2i (tilex
+dispw
, slicey
+dh
);
2221 glVertex2i (dispx
+dispw
, dispy
+dh
);
2223 glTexCoord2i (tilex
, slicey
+dh
);
2224 glVertex2i (dispx
, dispy
+dh
);
2231 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2235 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2236 CAMLreturn (Val_unit
);
2239 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2240 value xoff_v
, value yoff_v
,
2243 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2244 int xoff
= Int_val (xoff_v
);
2245 int yoff
= Int_val (yoff_v
);
2246 int noff
= Int_val (Field (li_v
, 0));
2247 char *targ
= String_val (Field (li_v
, 1));
2248 int tlen
= caml_string_length (Field (li_v
, 1));
2249 int hfsize
= Int_val (Field (li_v
, 2));
2250 char *s
= String_val (ptr_v
);
2251 int hlmask
= Int_val (hlinks_v
);
2252 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2255 /* deal with loadpage failed pages */
2259 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2260 if (trylock ("ml_postprocess")) {
2265 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2266 noff
= page
->slinkcount
;
2268 showsel (page
, xoff
, yoff
);
2269 unlock ("ml_postprocess");
2272 CAMLreturn (Val_int (noff
));
2275 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2279 fz_link
*link
, *links
;
2281 switch (page
->type
) {
2283 ctm
= trimctm (page
->u
.pdfpage
, page
->pdimno
);
2284 links
= page
->u
.pdfpage
->links
;
2289 links
= page
->u
.xpspage
->links
;
2298 ctm
= fz_concat (ctm
, state
.pagedims
[page
->pdimno
].ctm
);
2299 ctm
= fz_invert_matrix (ctm
);
2300 p
= fz_transform_point (ctm
, p
);
2302 for (link
= links
; link
; link
= link
->next
) {
2303 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2304 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2312 static void ensuretext (struct page
*page
)
2314 if (state
.gen
!= page
->tgen
) {
2316 page
->tgen
= state
.gen
;
2321 page
->text
= fz_new_text_page (state
.ctx
, fz_infinite_rect
);
2322 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2323 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2324 fz_run_display_list (page
->dlist
,
2327 fz_infinite_bbox
, NULL
);
2328 qsort (page
->text
->blocks
, page
->text
->len
,
2329 sizeof (*page
->text
->blocks
), compareblocks
);
2330 fz_free_device (tdev
);
2334 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2336 CAMLparam2 (start_page_v
, dir_v
);
2338 int i
, dir
= Int_val (dir_v
);
2339 int start_page
= Int_val (start_page_v
);
2340 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2342 ret_v
= Val_int (0);
2343 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2347 lock ("ml_findpage_with_links");
2348 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2351 switch (state
.type
) {
2354 pdf_page
*page
= NULL
;
2356 fz_try (state
.ctx
) {
2357 page
= pdf_load_page (state
.u
.pdf
, i
);
2358 found
= !!page
->links
;
2360 fz_catch (state
.ctx
) {
2370 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2371 found
= !!page
->links
;
2377 ARSERT ("invalid document type");
2381 ret_v
= caml_alloc_small (1, 1);
2382 Field (ret_v
, 0) = Val_int (i
);
2387 unlock ("ml_findpage_with_links");
2393 enum { dir_first
, dir_last
};
2394 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2396 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2398 CAMLparam2 (ptr_v
, dir_v
);
2399 CAMLlocal2 (ret_v
, pos_v
);
2401 int dirtag
, i
, slinkindex
;
2402 struct slink
*found
= NULL
,*slink
;
2403 char *s
= String_val (ptr_v
);
2405 page
= parse_pointer ("ml_findlink", s
);
2406 ret_v
= Val_int (0);
2407 if (trylock ("ml_findlink")) {
2411 ensureslinks (page
);
2413 if (Is_block (dir_v
)) {
2414 dirtag
= Tag_val (dir_v
);
2416 case dir_first_visible
:
2418 int x0
, y0
, dir
, first_index
, last_index
;
2420 pos_v
= Field (dir_v
, 0);
2421 x0
= Int_val (Field (pos_v
, 0));
2422 y0
= Int_val (Field (pos_v
, 1));
2423 dir
= Int_val (Field (pos_v
, 2));
2428 last_index
= page
->slinkcount
;
2431 first_index
= page
->slinkcount
- 1;
2435 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2436 slink
= &page
->slinks
[i
];
2437 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2446 slinkindex
= Int_val (Field (dir_v
, 0));
2447 found
= &page
->slinks
[slinkindex
];
2448 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2449 slink
= &page
->slinks
[i
];
2450 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2458 slinkindex
= Int_val (Field (dir_v
, 0));
2459 found
= &page
->slinks
[slinkindex
];
2460 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2461 slink
= &page
->slinks
[i
];
2462 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2470 slinkindex
= Int_val (Field (dir_v
, 0));
2471 found
= &page
->slinks
[slinkindex
];
2472 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2473 slink
= &page
->slinks
[i
];
2474 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2482 slinkindex
= Int_val (Field (dir_v
, 0));
2483 found
= &page
->slinks
[slinkindex
];
2484 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2485 slink
= &page
->slinks
[i
];
2486 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2495 dirtag
= Int_val (dir_v
);
2498 found
= page
->slinks
;
2503 found
= page
->slinks
+ (page
->slinkcount
- 1);
2509 ret_v
= caml_alloc_small (2, 1);
2510 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2513 unlock ("ml_findlink");
2518 enum { uuri
, ugoto
, utext
, uunexpected
, ulaunch
, unamed
, uremote
};
2524 switch (link->dest.kind) { \
2525 case FZ_LINK_GOTO: \
2529 pageno = link->dest.ld.gotor.page; \
2533 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2534 p.y = link->dest.ld.gotor.lt.y; \
2535 p = fz_transform_point (pdim->lctm, p); \
2537 tup_v = caml_alloc_tuple (2); \
2538 ret_v = caml_alloc_small (1, ugoto); \
2539 Field (tup_v, 0) = Val_int (pageno); \
2540 Field (tup_v, 1) = Val_int (p.y); \
2541 Field (ret_v, 0) = tup_v; \
2546 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2547 ret_v = caml_alloc_small (1, uuri); \
2548 Field (ret_v, 0) = str_v; \
2551 case FZ_LINK_LAUNCH: \
2552 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
2553 ret_v = caml_alloc_small (1, ulaunch); \
2554 Field (ret_v, 0) = str_v; \
2557 case FZ_LINK_NAMED: \
2558 str_v = caml_copy_string (link->dest.ld.named.named); \
2559 ret_v = caml_alloc_small (1, unamed); \
2560 Field (ret_v, 0) = str_v; \
2563 case FZ_LINK_GOTOR: \
2564 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
2565 pageno = link->dest.ld.gotor.page; \
2566 tup_v = caml_alloc_tuple (2); \
2567 ret_v = caml_alloc_small (1, uremote); \
2568 Field (tup_v, 0) = str_v; \
2569 Field (tup_v, 1) = Val_int (pageno); \
2570 Field (ret_v, 0) = tup_v; \
2577 snprintf (buf, sizeof (buf), \
2578 "unhandled link kind %d", link->dest.kind); \
2579 str_v = caml_copy_string (buf); \
2580 ret_v = caml_alloc_small (1, uunexpected); \
2581 Field (ret_v, 0) = str_v; \
2587 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
2589 CAMLparam2 (ptr_v
, n_v
);
2590 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2593 struct pagedim
*pdim
;
2594 char *s
= String_val (ptr_v
);
2596 ret_v
= Val_int (0);
2597 if (trylock ("ml_getlink")) {
2601 page
= parse_pointer ("ml_getlink", s
);
2602 ensureslinks (page
);
2603 pdim
= &state
.pagedims
[page
->pdimno
];
2604 link
= page
->slinks
[Int_val (n_v
)].link
;
2607 unlock ("ml_getlink");
2612 CAMLprim value
ml_getlinkcount (value ptr_v
)
2616 char *s
= String_val (ptr_v
);
2618 page
= parse_pointer ("ml_getlinkcount", s
);
2619 CAMLreturn (Val_int (page
->slinkcount
));
2622 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
2624 CAMLparam2 (ptr_v
, n_v
);
2627 struct slink
*slink
;
2628 char *s
= String_val (ptr_v
);
2630 page
= parse_pointer ("ml_getlinkrect", s
);
2631 ret_v
= caml_alloc_tuple (4);
2632 if (trylock ("ml_getlinkrect")) {
2633 Field (ret_v
, 0) = Val_int (0);
2634 Field (ret_v
, 1) = Val_int (0);
2635 Field (ret_v
, 2) = Val_int (0);
2636 Field (ret_v
, 3) = Val_int (0);
2639 ensureslinks (page
);
2641 slink
= &page
->slinks
[Int_val (n_v
)];
2642 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
2643 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
2644 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
2645 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
2646 unlock ("ml_getlinkrect");
2652 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
2654 CAMLparam3 (ptr_v
, x_v
, y_v
);
2655 CAMLlocal3 (ret_v
, tup_v
, str_v
);
2658 char *s
= String_val (ptr_v
);
2659 int x
= Int_val (x_v
), y
= Int_val (y_v
);
2660 struct pagedim
*pdim
;
2662 ret_v
= Val_int (0);
2663 if (trylock ("ml_whatsunder")) {
2667 page
= parse_pointer ("ml_whatsunder", s
);
2668 pdim
= &state
.pagedims
[page
->pdimno
];
2669 x
+= pdim
->bounds
.x0
;
2670 y
+= pdim
->bounds
.y0
;
2671 link
= getlink (page
, x
, y
);
2677 fz_text_block
*block
;
2680 for (block
= page
->text
->blocks
;
2681 block
< page
->text
->blocks
+ page
->text
->len
;
2686 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2689 for (line
= block
->lines
;
2690 line
< block
->lines
+ block
->len
;
2695 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2698 for (span
= line
->spans
;
2699 span
< line
->spans
+ line
->len
;
2704 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
2707 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
2710 if (x
>= b
->x0
&& x
<= b
->x1
2711 && y
>= b
->y0
&& y
<= b
->y1
) {
2713 span
->style
->font
&& span
->style
->font
->name
2714 ? span
->style
->font
->name
2715 : "Span has no font name"
2717 FT_FaceRec
*face
= span
->style
->font
->ft_face
;
2718 if (face
&& face
->family_name
) {
2720 char *n1
= face
->family_name
;
2721 size_t l1
= strlen (n1
);
2722 size_t l2
= strlen (n2
);
2724 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
2725 s
= malloc (l1
+ l2
+ 2);
2729 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
2730 str_v
= caml_copy_string (s
);
2736 str_v
= caml_copy_string (n2
);
2738 ret_v
= caml_alloc_small (1, utext
);
2739 Field (ret_v
, 0) = str_v
;
2748 unlock ("ml_whatsunder");
2754 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
2756 CAMLparam2 (ptr_v
, rect_v
);
2759 struct pagedim
*pdim
;
2760 int i
, x0
, x1
, y0
, y1
;
2761 char *s
= String_val (ptr_v
);
2763 fz_text_block
*block
;
2764 fz_text_span
*span
, *fspan
, *lspan
;
2765 fz_text_line
*line
, *fline
= NULL
, *lline
= NULL
;
2767 if (trylock ("ml_seltext")) {
2771 page
= parse_pointer ("ml_seltext", s
);
2774 pdim
= &state
.pagedims
[page
->pdimno
];
2775 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;;
2776 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
2777 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
2778 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
2781 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2782 glColor3ub (128, 128, 128);
2783 glRecti (x0
, y0
, x1
, y1
);
2784 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2787 fspan
= lspan
= NULL
;
2789 for (block
= page
->text
->blocks
;
2790 block
< page
->text
->blocks
+ page
->text
->len
;
2792 for (line
= block
->lines
;
2793 line
< block
->lines
+ block
->len
;
2795 for (span
= line
->spans
;
2796 span
< line
->spans
+ line
->len
;
2798 for (i
= 0; i
< span
->len
; ++i
) {
2799 b
= &span
->text
[i
].bbox
;
2802 if (x0
>= b
->x0
&& x0
<= b
->x1
2803 && y0
>= b
->y0
&& y0
<= b
->y1
) {
2809 if (x1
>= b
->x0
&& x1
<= b
->x1
2810 && y1
>= b
->y0
&& y1
<= b
->y1
) {
2816 if (0 && selected
) {
2817 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
2818 glColor3ub (128, 128, 128);
2819 glRecti (b
->x0
, b
->y0
, b
->x1
, b
->y1
);
2820 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
2826 if (y1
< y0
|| x1
< x0
) {
2829 if (fspan
== lspan
) {
2834 if (fline
!= lline
) {
2853 page
->fmark
.span
= fspan
;
2856 page
->lmark
.span
= lspan
;
2858 unlock ("ml_seltext");
2861 CAMLreturn (Val_unit
);
2864 static int UNUSED_ATTR
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
2869 for (i
= a
; i
<= b
; ++i
) {
2870 len
= fz_runetochar (buf
, span
->text
[i
].c
);
2871 ret
= fwrite (buf
, len
, 1, f
);
2874 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
2875 len
, ret
, strerror (errno
));
2883 value
ml_popen (value UNUSED_ATTR u1
, value UNUSED_ATTR u2
)
2885 caml_failwith ("ml_popen not implemented under Cygwin");
2888 CAMLprim value
ml_popen (value command_v
, value fds_v
)
2890 CAMLparam2 (command_v
, fds_v
);
2891 CAMLlocal2 (l_v
, tup_v
);
2894 value earg_v
= Nothing
;
2895 posix_spawnattr_t attr
;
2896 posix_spawn_file_actions_t fa
;
2897 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
2899 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
2900 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
2903 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
2904 msg
= "posix_spawnattr_init";
2908 #ifdef POSIX_SPAWN_USEVFORK
2909 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
2910 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
2915 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
2918 tup_v
= Field (l_v
, 0);
2919 fd1
= Int_val (Field (tup_v
, 0));
2920 fd2
= Int_val (Field (tup_v
, 1));
2922 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
2923 msg
= "posix_spawn_file_actions_addclose";
2929 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
2930 msg
= "posix_spawn_file_actions_adddup2";
2937 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
2938 msg
= "posix_spawn";
2943 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
2944 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
2948 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
2949 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
2954 unix_error (ret
, msg
, earg_v
);
2956 CAMLreturn (Val_unit
);
2960 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
2968 fz_text_block
*block
;
2969 int fd
= Int_val (fd_v
);
2970 char *s
= String_val (ptr_v
);
2972 if (trylock ("ml_copysel")) {
2976 page
= parse_pointer ("ml_sopysel", s
);
2978 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
2979 fprintf (stderr
, "nothing to copy\n");
2983 f
= fdopen (fd
, "w");
2985 fprintf (stderr
, "failed to fopen sel pipe: %s\n",
2990 for (block
= page
->text
->blocks
;
2991 block
< page
->text
->blocks
+ page
->text
->len
;
2993 for (line
= block
->lines
;
2994 line
< block
->lines
+ block
->len
;
2996 for (span
= line
->spans
;
2997 span
< line
->spans
+ line
->len
;
3001 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
3002 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
3003 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
3006 if (pipespan (f
, span
, a
, b
)) {
3009 if (span
== line
->spans
+ line
->len
- 1) {
3010 if (putc ('\n', f
) == EOF
) {
3012 "failed break line on sel pipe: %s\n",
3017 if (span
== page
->lmark
.span
) {
3025 page
->lmark
.span
= NULL
;
3026 page
->fmark
.span
= NULL
;
3030 int ret
= fclose (f
);
3033 if (errno
!= ECHILD
) {
3034 fprintf (stderr
, "failed to close sel pipe: %s\n",
3040 unlock ("ml_copysel");
3045 fprintf (stderr
, "failed to close sel pipe: %s\n",
3049 CAMLreturn (Val_unit
);
3052 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
3054 CAMLparam1 (pagedimno_v
);
3056 int pagedimno
= Int_val (pagedimno_v
);
3059 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3060 if (trylock ("ml_getpdimrect")) {
3061 box
= fz_empty_rect
;
3064 box
= state
.pagedims
[pagedimno
].mediabox
;
3065 unlock ("ml_getpdimrect");
3068 Store_double_field (ret_v
, 0, box
.x0
);
3069 Store_double_field (ret_v
, 1, box
.x1
);
3070 Store_double_field (ret_v
, 2, box
.y0
);
3071 Store_double_field (ret_v
, 3, box
.y1
);
3076 static double getmaxw (void)
3082 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3085 x0
= MIN (p
->mediabox
.x0
, p
->mediabox
.x1
);
3086 x1
= MAX (p
->mediabox
.x0
, p
->mediabox
.x1
);
3089 maxw
= MAX (w
, maxw
);
3094 CAMLprim value
ml_getmaxw (value unit_v
)
3096 CAMLparam1 (unit_v
);
3100 if (trylock ("ml_getmaxw")) {
3104 unlock ("ml_getmaxw");
3106 ret_v
= caml_copy_double (maxw
);
3110 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
3111 value dw_v
, value cols_v
)
3113 CAMLparam3 (winw_v
, winh_v
, dw_v
);
3117 double maxw
= 0.0, maxh
= 0.0;
3119 double winw
= Int_val (winw_v
);
3120 double winh
= Int_val (winh_v
);
3121 double dw
= Int_val (dw_v
);
3122 double cols
= Int_val (cols_v
);
3123 double pw
= 1.0, ph
= 1.0, aspect
;
3125 if (trylock ("ml_zoom_for_height")) {
3129 if (state
.proportional
) {
3130 maxw
= getmaxw () / cols
;
3133 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3134 double x0
, x1
, y0
, y1
, w
, h
, scaledh
, scale
;
3137 rect
= fz_transform_rect (fz_rotate (p
->rotate
+ state
.rotate
),
3139 x0
= MIN (rect
.x0
, rect
.x1
);
3140 x1
= MAX (rect
.x0
, rect
.x1
);
3141 y0
= MIN (rect
.y0
, rect
.y1
);
3142 y1
= MAX (rect
.y0
, rect
.y1
);
3144 w
= (x1
- x0
) / cols
;
3147 if (state
.proportional
) {
3149 scaledh
= h
* scale
;
3156 if (scaledh
> maxh
) {
3164 zoom
= (winh
* aspect
+ dw
) / winw
;
3166 unlock ("ml_zoom_for_height");
3168 ret_v
= caml_copy_double (zoom
);
3172 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3174 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3176 int pt
= Int_val(pt_v
);
3177 int x
= Int_val (x_v
);
3178 int y
= Int_val (y_v
);
3181 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3182 ret_v
= caml_copy_double (w
);
3186 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3188 CAMLparam2 (pt_v
, string_v
);
3190 int pt
= Int_val (pt_v
);
3193 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3194 ret_v
= caml_copy_double (w
);
3198 CAMLprim value
ml_getpagebox (value opaque_v
)
3200 CAMLparam1 (opaque_v
);
3204 char *s
= String_val (opaque_v
);
3205 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3207 ret_v
= caml_alloc_tuple (4);
3208 dev
= fz_new_bbox_device (state
.ctx
, &bbox
);
3209 dev
->hints
|= FZ_IGNORE_SHADE
;
3211 switch (page
->type
) {
3213 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, pagectm (page
), NULL
);
3217 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, pagectm (page
), NULL
);
3221 bbox
= fz_infinite_bbox
;
3225 fz_free_device (dev
);
3226 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3227 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3228 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3229 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3234 CAMLprim value
ml_setaalevel (value level_v
)
3236 CAMLparam1 (level_v
);
3238 state
.aalevel
= Int_val (level_v
);
3239 CAMLreturn (Val_unit
);
3243 #include <X11/Xlib.h>
3249 GLXDrawable drawable
;
3252 #include "keysym2ucs.c"
3254 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
3256 CAMLparam1 (keysym_v
);
3258 KeySym keysym
= Int_val (keysym_v
);
3263 rune
= keysym2ucs (keysym
);
3264 len
= fz_runetochar (buf
, rune
);
3266 str_v
= caml_copy_string (buf
);
3270 CAMLprim value
ml_glx (value win_v
)
3273 XVisualInfo
*visual
;
3274 int screen
, wid
= Int_val (win_v
);
3275 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
3277 glx
.dpy
= XOpenDisplay (NULL
);
3279 caml_failwith ("XOpenDisplay");
3282 screen
= DefaultScreen (glx
.dpy
);
3283 visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
3285 XCloseDisplay (glx
.dpy
);
3287 caml_failwith ("glXChooseVisual");
3290 glx
.ctx
= glXCreateContext (glx
.dpy
, visual
, NULL
, True
);
3293 XCloseDisplay (glx
.dpy
);
3295 caml_failwith ("glXCreateContext");
3298 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
3299 glXDestroyContext (glx
.dpy
, glx
.ctx
);
3300 XCloseDisplay (glx
.dpy
);
3303 caml_failwith ("glXMakeCurrent");
3306 CAMLreturn (Val_unit
);
3309 CAMLprim value
ml_swapb (value unit_v
)
3311 CAMLparam1 (unit_v
);
3312 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
3313 CAMLreturn (Val_unit
);
3316 CAMLprim value
ml_glxsync (value unit_v
)
3318 CAMLparam1 (unit_v
);
3319 if (glx
.dpy
&& glx
.ctx
) {
3323 CAMLreturn (Val_unit
);
3326 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
3327 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
3329 CAMLprim value
ml_platform (value unit_v
)
3331 CAMLparam1 (unit_v
);
3332 int platid
= piunknown
;
3334 #if defined __linux__
3336 #elif defined __CYGWIN__
3338 #elif defined __DragonFly__
3339 platid
= pidragonflybsd
;
3340 #elif defined __FreeBSD__
3342 #elif defined __OpenBSD__
3344 #elif defined __NetBSD__
3346 #elif defined __sun__
3348 #elif defined __APPLE__
3351 CAMLreturn (Val_int (platid
));
3354 CAMLprim value
ml_cloexec (value fd_v
)
3357 int fd
= Int_val (fd_v
);
3359 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
3360 uerror ("fcntl", Nothing
);
3362 CAMLreturn (Val_unit
);
3365 CAMLprim value
ml_getpbo (value w_v
, value h_v
, value cs_v
)
3367 CAMLparam2 (w_v
, h_v
);
3370 int w
= Int_val (w_v
);
3371 int h
= Int_val (h_v
);
3372 int cs
= Int_val (cs_v
);
3374 if (state
.pbo_usable
) {
3375 pbo
= calloc (sizeof (*pbo
), 1);
3377 err (1, "calloc pbo");
3389 errx (1, "ml_getpbo: invalid colorspace %d", cs
);
3392 state
.glGenBuffersARB (1, &pbo
->id
);
3393 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->id
);
3394 state
.glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->size
,
3395 NULL
, GL_STREAM_DRAW
);
3396 pbo
->ptr
= state
.glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
,
3399 fprintf (stderr
, "glMapBufferARB failed: %#x", glGetError ());
3400 state
.glDeleteBuffersARB (1, &pbo
->id
);
3402 ret_v
= caml_copy_string ("0");
3408 res
= snprintf (NULL
, 0, "%" FMT_ptr
, pbo
);
3410 err (1, "snprintf %" FMT_ptr
" failed", pbo
);
3414 err (1, "malloc %d bytes failed", res
+1);
3416 res
= sprintf (s
, "%" FMT_ptr
, pbo
);
3418 err (1, "sprintf %" FMT_ptr
" failed", pbo
);
3420 ret_v
= caml_copy_string (s
);
3423 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3426 ret_v
= caml_copy_string ("0");
3431 CAMLprim value
ml_freepbo (value s_v
)
3434 char *s
= String_val (s_v
);
3435 struct tile
*tile
= parse_pointer ("ml_freepbo", s
);
3438 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
3439 state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
);
3440 state
.glDeleteBuffersARB (1, &tile
->pbo
->id
);
3442 tile
->pbo
->ptr
= NULL
;
3443 tile
->pbo
->size
= -1;
3445 CAMLreturn (Val_unit
);
3448 CAMLprim value
ml_unmappbo (value s_v
)
3451 char *s
= String_val (s_v
);
3452 struct tile
*tile
= parse_pointer ("ml_unmappbo", s
);
3455 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
3456 state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
);
3457 tile
->pbo
->ptr
= NULL
;
3458 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
3460 CAMLreturn (Val_unit
);
3463 static void setuppbo (void)
3465 #define GGPA(n) *(void (**) ()) &state.n = glXGetProcAddress ((GLubyte *) #n)
3466 GGPA (glBindBufferARB
);
3467 if (state
.glBindBufferARB
) {
3468 GGPA (glUnmapBufferARB
);
3469 if (state
.glUnmapBufferARB
) {
3470 GGPA (glMapBufferARB
);
3471 if (state
.glMapBufferARB
) {
3472 GGPA (glBufferDataARB
);
3473 if (state
.glBufferDataARB
) {
3474 GGPA (glGenBuffersARB
);
3475 if (state
.glGenBuffersARB
) {
3476 GGPA (glDeleteBuffersARB
);
3477 if (state
.glDeleteBuffersARB
) {
3478 state
.pbo_usable
= 1;
3488 CAMLprim value
ml_pbo_usable (value unit_v
)
3490 CAMLparam1 (unit_v
);
3491 CAMLreturn (Val_bool (state
.pbo_usable
));
3494 CAMLprim value
ml_init (value pipe_v
, value params_v
)
3496 CAMLparam2 (pipe_v
, params_v
);
3497 CAMLlocal2 (trim_v
, fuzz_v
);
3504 struct sigaction sa
;
3506 state
.cr
= Int_val (Field (pipe_v
, 0));
3507 state
.cw
= Int_val (Field (pipe_v
, 1));
3508 state
.rotate
= Int_val (Field (params_v
, 0));
3509 state
.proportional
= Bool_val (Field (params_v
, 1));
3510 trim_v
= Field (params_v
, 2);
3511 texcount
= Int_val (Field (params_v
, 3));
3512 state
.sliceheight
= Int_val (Field (params_v
, 4));
3513 mustoresize
= Int_val (Field (params_v
, 5));
3514 colorspace
= Int_val (Field (params_v
, 6));
3515 fontpath
= String_val (Field (params_v
, 7));
3516 state
.trimcachepath
= strdup (String_val (Field (params_v
, 8)));
3517 if (!state
.trimcachepath
) {
3518 fprintf (stderr
, "failed to strdup trimcachepath: %s\n",
3521 haspboext
= Bool_val (Field (params_v
, 9));
3523 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
3525 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
3526 fuzz_v
= Field (trim_v
, 1);
3527 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
3528 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
3529 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
3530 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
3532 set_tex_params (colorspace
);
3535 state
.face
= load_font (fontpath
);
3539 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
3541 state
.face
= load_builtin_font (base
, len
);
3543 if (!state
.face
) _exit (1);
3545 realloctexts (texcount
);
3552 sa
.sa_handler
= SIG_IGN
;
3553 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
3555 sa
.sa_handler
= SIG_DFL
;
3556 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
3558 if (sigemptyset (&sa
.sa_mask
)) {
3559 err (1, "sigemptyset");
3561 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
3562 err (1, "sigaction");
3565 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
3567 errx (1, "pthread_create: %s", strerror (ret
));
3570 CAMLreturn (Val_unit
);