1 /* lots of code c&p-ed directly from mupdf */
13 #include <sys/types.h>
14 #include <sys/ioctl.h>
17 #include <cygwin/socket.h> /* FIONREAD */
28 #include <caml/fail.h>
29 #include <caml/alloc.h>
30 #include <caml/memory.h>
31 #include <caml/unixsupport.h>
33 #include <mupdf/fitz.h>
34 #include <mupdf/cbz.h>
35 #include <mupdf/pdf.h>
36 #include <mupdf/xps.h>
37 #include <mupdf/img.h>
40 #include FT_FREETYPE_H
43 #include <fontconfig/fontconfig.h>
47 #define SUMATRA_LOOKUP
50 extern char **environ
;
53 #define MIN(a,b) ((a) < (b) ? (a) : (b))
54 #define MAX(a,b) ((a) > (b) ? (a) : (b))
57 #define NORETURN_ATTR __attribute__ ((noreturn))
58 #define UNUSED_ATTR __attribute__ ((unused))
59 #if !defined __clang__
60 #define OPTIMIZE_ATTR(n) __attribute__ ((optimize ("O"#n)))
62 #define OPTIMIZE_ATTR(n)
64 #define GCC_FMT_ATTR(a, b) __attribute__ ((format (printf, a, b)))
68 #define OPTIMIZE_ATTR(n)
69 #define GCC_FMT_ATTR(a, b)
75 #define FMT_ptr_cast(p) (p)
76 #define FMT_ptr_cast2(p) (p)
78 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
79 err (int exitcode
, const char *fmt
, ...)
86 vfprintf (stderr
, fmt
, ap
);
88 fprintf (stderr
, ": %s\n", strerror (savederrno
));
93 static void NORETURN_ATTR
GCC_FMT_ATTR (2, 3)
94 errx (int exitcode
, const char *fmt
, ...)
99 vfprintf (stderr
, fmt
, ap
);
101 fputc ('\n', stderr
);
106 #ifndef GL_TEXTURE_RECTANGLE_ARB
107 #define GL_TEXTURE_RECTANGLE_ARB 0x84F5
111 #define GL_BGRA 0x80E1
114 #ifndef GL_UNSIGNED_INT_8_8_8_8
115 #define GL_UNSIGNED_INT_8_8_8_8 0x8035
118 #ifndef GL_UNSIGNED_INT_8_8_8_8_REV
119 #define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
123 #define lprintf printf
128 #define ARSERT(cond) for (;;) { \
130 errx (1, "%s:%d " #cond, __FILE__, __LINE__); \
146 struct slice slices
[1];
157 fz_matrix ctm
, zoomctm
, lctm
, tctm
;
165 enum { DPDF
, DXPS
, DCBZ
, DIMG
};
174 fz_text_sheet
*sheet
;
182 fz_display_list
*dlist
;
184 struct slink
*slinks
;
189 void (*freepage
) (void *);
195 struct pagedim
*pagedims
;
215 fz_colorspace
*colorspace
;
223 enum { FitWidth
, FitProportional
, FitPage
} fitmodel
;
237 void (*closedoc
) (void);
238 void (*freepage
) (void *);
246 void (*glBindBufferARB
) (GLenum
, GLuint
);
247 GLboolean (*glUnmapBufferARB
) (GLenum
);
248 void *(*glMapBufferARB
) (GLenum
, GLenum
);
249 void (*glBufferDataARB
) (GLenum
, GLsizei
, void *, GLenum
);
250 void (*glGenBuffersARB
) (GLsizei
, GLuint
*);
251 void (*glDeleteBuffersARB
) (GLsizei
, GLuint
*);
253 GLfloat texcoords
[8];
254 GLfloat vertices
[16];
256 #ifdef SUMATRA_LOOKUP
271 static void UNUSED_ATTR
debug_rect (const char *cap
, fz_rect r
)
273 printf ("%s(rect) %.2f,%.2f,%.2f,%.2f\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
276 static void UNUSED_ATTR
debug_bbox (const char *cap
, fz_irect r
)
278 printf ("%s(bbox) %d,%d,%d,%d\n", cap
, r
.x0
, r
.y0
, r
.x1
, r
.y1
);
281 static void UNUSED_ATTR
debug_matrix (const char *cap
, fz_matrix m
)
283 printf ("%s(matrix) %.2f,%.2f,%.2f,%.2f %.2f %.2f\n", cap
,
284 m
.a
, m
.b
, m
.c
, m
.d
, m
.e
, m
.f
);
287 static pthread_mutex_t mutex
= PTHREAD_MUTEX_INITIALIZER
;
289 static void lock (const char *cap
)
291 int ret
= pthread_mutex_lock (&mutex
);
293 errx (1, "%s: pthread_mutex_lock: %s", cap
, strerror (ret
));
297 static void unlock (const char *cap
)
299 int ret
= pthread_mutex_unlock (&mutex
);
301 errx (1, "%s: pthread_mutex_unlock: %s", cap
, strerror (ret
));
305 static int trylock (const char *cap
)
307 int ret
= pthread_mutex_trylock (&mutex
);
308 if (ret
&& ret
!= EBUSY
) {
309 errx (1, "%s: pthread_mutex_trylock: %s", cap
, strerror (ret
));
314 static void *parse_pointer (const char *cap
, const char *s
)
319 ret
= sscanf (s
, "%" FMT_ptr
, FMT_ptr_cast (&ptr
));
321 errx (1, "%s: cannot parse pointer in `%s'", cap
, s
);
326 static double now (void)
330 if (gettimeofday (&tv
, NULL
)) {
331 err (1, "gettimeofday");
333 return tv
.tv_sec
+ tv
.tv_usec
*1e-6;
336 static int hasdata (void)
339 ret
= ioctl (state
.cr
, FIONREAD
, &avail
);
340 if (ret
) err (1, "hasdata: FIONREAD error ret=%d", ret
);
344 CAMLprim value
ml_hasdata (value fd_v
)
349 ret
= ioctl (Int_val (fd_v
), FIONREAD
, &avail
);
350 if (ret
) uerror ("ioctl (FIONREAD)", Nothing
);
351 CAMLreturn (Val_bool (avail
> 0));
354 static void readdata (void *p
, int size
)
359 n
= read (state
.cr
, p
, size
);
361 if (errno
== EINTR
) goto again
;
362 err (1, "read (req %d, ret %zd)", size
, n
);
365 if (!n
) errx (1, "EOF while reading");
366 errx (1, "read (req %d, ret %zd)", size
, n
);
370 static void writedata (char *p
, int size
)
374 p
[0] = (size
>> 24) & 0xff;
375 p
[1] = (size
>> 16) & 0xff;
376 p
[2] = (size
>> 8) & 0xff;
377 p
[3] = (size
>> 0) & 0xff;
379 n
= write (state
.cw
, p
, size
+ 4);
381 if (!n
) errx (1, "EOF while writing data");
382 err (1, "write (req %d, ret %zd)", size
+ 4, n
);
386 static int readlen (void)
391 return (p
[0] << 24) | (p
[1] << 16) | (p
[2] << 8) | p
[3];
394 static void GCC_FMT_ATTR (1, 2) printd (const char *fmt
, ...)
402 if (!buf
) err (1, "malloc for temp buf (%d bytes) failed", size
);
405 len
= vsnprintf (buf
+ 4, size
- 4, fmt
, ap
);
409 if (len
< size
- 4) {
410 writedata (buf
, len
);
416 err (1, "vsnprintf for `%s' failed", fmt
);
418 buf
= realloc (buf
, size
);
423 static void closepdf (void)
425 #ifdef SUMATRA_LOOKUP
426 if (state
.pdflut
.objs
) {
429 for (i
= 0; i
< state
.pdflut
.count
; ++i
) {
430 pdf_drop_obj (state
.pdflut
.objs
[i
]);
432 free (state
.pdflut
.objs
);
433 state
.pdflut
.objs
= NULL
;
438 pdf_close_document (state
.u
.pdf
);
443 static void closexps (void)
446 xps_close_document (state
.u
.xps
);
451 static void closecbz (void)
454 cbz_close_document (state
.u
.cbz
);
459 static void closeimg (void)
462 image_close_document (state
.u
.img
);
467 static void freepdfpage (void *ptr
)
469 pdf_free_page (state
.u
.pdf
, ptr
);
472 static void freeemptyxxxpage (void *ptr
)
477 static void freexpspage (void *ptr
)
479 xps_free_page (state
.u
.xps
, ptr
);
482 static void freecbzpage (void *ptr
)
484 cbz_free_page (state
.u
.cbz
, ptr
);
487 static void freeimgpage (void *ptr
)
489 image_free_page (state
.u
.img
, ptr
);
492 static void openxref (char *filename
, char *password
)
496 for (i
= 0; i
< state
.texcount
; ++i
) {
497 state
.texowners
[i
].w
= -1;
498 state
.texowners
[i
].slice
= NULL
;
501 if (state
.closedoc
) state
.closedoc ();
503 len
= strlen (filename
);
521 for (i
= 0; i
< sizeof (tbl
) / sizeof (*tbl
); ++i
) {
522 int len2
= strlen (tbl
[i
].ext
);
524 if (len2
< len
&& !strcasecmp (tbl
[i
].ext
, filename
+ len
- len2
)) {
525 state
.type
= tbl
[i
].type
;
531 if (state
.pagedims
) {
532 free (state
.pagedims
);
533 state
.pagedims
= NULL
;
535 state
.pagedimcount
= 0;
537 fz_set_aa_level (state
.ctx
, state
.aalevel
);
538 switch (state
.type
) {
540 state
.u
.pdf
= pdf_open_document (state
.ctx
, filename
);
541 if (pdf_needs_password (state
.u
.pdf
)) {
542 int okay
= pdf_authenticate_password (state
.u
.pdf
, password
);
544 errx (1, "invalid password");
547 state
.pagecount
= pdf_count_pages (state
.u
.pdf
);
548 state
.closedoc
= closepdf
;
549 state
.freepage
= freepdfpage
;
553 state
.u
.xps
= xps_open_document (state
.ctx
, filename
);
554 state
.pagecount
= xps_count_pages (state
.u
.xps
);
555 state
.closedoc
= closexps
;
556 state
.freepage
= freexpspage
;
560 state
.u
.cbz
= cbz_open_document (state
.ctx
, filename
);
561 state
.pagecount
= cbz_count_pages (state
.u
.cbz
);
562 state
.closedoc
= closecbz
;
563 state
.freepage
= freecbzpage
;
567 state
.u
.img
= image_open_document (state
.ctx
, filename
);
569 state
.closedoc
= closeimg
;
570 state
.freepage
= freeimgpage
;
575 static void pdfinfo (void)
577 if (state
.type
== DPDF
) {
580 printd ("info PDF version\t%d.%d",
581 state
.u
.pdf
->version
/ 10, state
.u
.pdf
->version
% 10);
583 infoobj
= pdf_dict_gets (pdf_trailer (state
.u
.pdf
), "Info");
587 char *items
[] = { "Title", "Author", "Creator",
588 "Producer", "CreationDate" };
590 for (i
= 0; i
< sizeof (items
) / sizeof (*items
); ++i
) {
591 pdf_obj
*obj
= pdf_dict_gets (infoobj
, items
[i
]);
592 s
= pdf_to_utf8 (state
.u
.pdf
, obj
);
595 printd ("title %s", s
);
597 printd ("info %s\t%s", items
[i
], s
);
599 fz_free (state
.ctx
, s
);
606 static void unlinktile (struct tile
*tile
)
610 for (i
= 0; i
< tile
->slicecount
; ++i
) {
611 struct slice
*s
= &tile
->slices
[i
];
613 if (s
->texindex
!= -1) {
614 if (state
.texowners
[s
->texindex
].slice
== s
) {
615 state
.texowners
[s
->texindex
].slice
= NULL
;
621 static void freepage (struct page
*page
)
624 fz_free_text_page (state
.ctx
, page
->text
);
627 fz_free_text_sheet (state
.ctx
, page
->sheet
);
632 fz_drop_display_list (state
.ctx
, page
->dlist
);
633 page
->freepage (page
->u
.ptr
);
637 static void freetile (struct tile
*tile
)
642 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
645 fz_drop_pixmap (state
.ctx
, state
.pig
);
647 state
.pig
= tile
->pixmap
;
652 fz_drop_pixmap (state
.ctx
, tile
->pixmap
);
661 static int cacheline32bytes
;
663 static void __attribute__ ((constructor
)) clcheck (void)
665 char **envp
= environ
;
670 for (auxv
= (unsigned long *) envp
; *auxv
!= 0; auxv
+= 2) {
672 cacheline32bytes
= auxv
[1] == 32;
678 static void OPTIMIZE_ATTR (3) clearpixmap (fz_pixmap
*pixmap
)
680 size_t size
= pixmap
->w
* pixmap
->h
* pixmap
->n
;
681 if (cacheline32bytes
&& size
> 32) {
682 intptr_t a1
, a2
, diff
;
684 vector
unsigned char v
= vec_splat_u8 (-1);
685 vector
unsigned char *p
;
687 a1
= a2
= (intptr_t) pixmap
->samples
;
688 a2
= (a1
+ 31) & ~31;
693 while (a1
!= a2
) *(char *) a1
++ = 0xff;
694 for (i
= 0; i
< (sizea
& ~31); i
+= 32) {
695 __asm
volatile ("dcbz %0, %1"::"b"(a2
),"r"(i
));
697 vec_st (v
, i
+ 16, p
);
699 while (i
< sizea
) *((char *) a1
+ i
++) = 0xff;
701 else fz_clear_pixmap_with_value (state
.ctx
, pixmap
, 0xff);
704 #define clearpixmap(p) fz_clear_pixmap_with_value (state.ctx, p, 0xff)
707 static void trimctm (pdf_page
*page
, int pindex
)
710 struct pagedim
*pdim
= &state
.pagedims
[pindex
];
712 if (!pdim
->tctmready
) {
713 if (state
.trimmargins
) {
715 fz_matrix rm
, sm
, tm
, im
, ctm1
;
717 fz_rotate (&rm
, -pdim
->rotate
);
718 fz_scale (&sm
, 1, -1);
719 fz_concat (&ctm
, &rm
, &sm
);
720 realbox
= pdim
->mediabox
;
721 fz_transform_rect (&realbox
, &ctm
);
722 fz_translate (&tm
, -realbox
.x0
, -realbox
.y0
);
723 fz_concat (&ctm1
, &ctm
, &tm
);
724 fz_invert_matrix (&im
, &page
->ctm
);
725 fz_concat (&ctm
, &im
, &ctm1
);
735 static fz_matrix
pagectm (struct page
*page
)
739 if (page
->type
== DPDF
) {
740 trimctm (page
->u
.pdfpage
, page
->pdimno
);
742 &state
.pagedims
[page
->pdimno
].tctm
,
743 &state
.pagedims
[page
->pdimno
].ctm
);
746 struct pagedim
*pdim
= &state
.pagedims
[page
->pdimno
];
748 fz_translate (&tm
, -pdim
->mediabox
.x0
, -pdim
->mediabox
.y0
);
749 fz_concat (&ctm
, &tm
, &state
.pagedims
[page
->pdimno
].ctm
);
754 static void *loadpage (int pageno
, int pindex
)
759 page
= calloc (sizeof (struct page
), 1);
761 err (1, "calloc page %d", pageno
);
764 page
->dlist
= fz_new_display_list (state
.ctx
);
765 dev
= fz_new_list_device (state
.ctx
, page
->dlist
);
767 switch (state
.type
) {
769 page
->u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
770 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
,
772 page
->freepage
= freepdfpage
;
776 page
->u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
777 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
,
779 page
->freepage
= freexpspage
;
783 page
->u
.cbzpage
= cbz_load_page (state
.u
.cbz
, pageno
);
784 cbz_run_page (state
.u
.cbz
, page
->u
.cbzpage
, dev
,
786 page
->freepage
= freecbzpage
;
790 page
->u
.imgpage
= image_load_page (state
.u
.img
, pageno
);
791 image_run_page (state
.u
.img
, page
->u
.imgpage
, dev
,
793 page
->freepage
= freeimgpage
;
797 fz_catch (state
.ctx
) {
799 page
->freepage
= freeemptyxxxpage
;
801 fz_free_device (dev
);
803 page
->pdimno
= pindex
;
804 page
->pageno
= pageno
;
805 page
->sgen
= state
.gen
;
806 page
->tgen
= state
.gen
;
807 page
->type
= state
.type
;
812 static struct tile
*alloctile (int h
)
819 slicecount
= (h
+ state
.sliceheight
- 1) / state
.sliceheight
;
820 tilesize
= sizeof (*tile
) + ((slicecount
- 1) * sizeof (struct slice
));
821 tile
= calloc (tilesize
, 1);
823 err (1, "can not allocate tile (%" FMT_s
" bytes)", tilesize
);
825 for (i
= 0; i
< slicecount
; ++i
) {
826 int sh
= MIN (h
, state
.sliceheight
);
827 tile
->slices
[i
].h
= sh
;
828 tile
->slices
[i
].texindex
= -1;
831 tile
->slicecount
= slicecount
;
832 tile
->sliceheight
= state
.sliceheight
;
842 static void obs_fill_image (fz_device
*dev
, fz_image
*image
,
843 const fz_matrix
*ctm
, float alpha
)
845 struct obs
*obs
= dev
->user
;
847 if (!obs
->cured
&& fabs (1.0 - alpha
) < 1e6
) {
849 fz_rect rect
= fz_unit_rect
;
851 fz_transform_rect (&rect
, ctm
);
852 fz_round_rect (&b
, &rect
);
853 fz_intersect_irect (&b
, &obs
->b
);
854 obs
->cured
= b
.x0
== obs
->b
.x0
857 && b
.y1
== obs
->b
.y1
;
861 static int obscured (struct page
*page
, fz_irect bbox
)
868 memset (&dev
, 0, sizeof (dev
));
869 memset (&obs
, 0, sizeof (obs
));
874 dev
.fill_image
= obs_fill_image
;
876 fz_rect_from_irect (&rect
, &bbox
);
877 ctm
= pagectm (page
);
878 fz_run_display_list (page
->dlist
, &dev
, &ctm
, &rect
, NULL
);
881 #define OBSCURED obscured
883 #define OBSCURED(a, b) 0
886 static struct tile
*rendertile (struct page
*page
, int x
, int y
, int w
, int h
,
894 struct pagedim
*pdim
;
896 tile
= alloctile (h
);
897 pdim
= &state
.pagedims
[page
->pdimno
];
902 bbox
.x1
= bbox
.x0
+ w
;
903 bbox
.y1
= bbox
.y0
+ h
;
906 if (state
.pig
->w
== w
908 && state
.pig
->colorspace
== state
.colorspace
) {
909 tile
->pixmap
= state
.pig
;
910 tile
->pixmap
->x
= bbox
.x0
;
911 tile
->pixmap
->y
= bbox
.y0
;
914 fz_drop_pixmap (state
.ctx
, state
.pig
);
921 fz_new_pixmap_with_bbox_and_data (state
.ctx
, state
.colorspace
,
927 fz_new_pixmap_with_bbox (state
.ctx
, state
.colorspace
, &bbox
);
933 if (!page
->u
.ptr
|| ((w
< 128 && h
< 128) || !OBSCURED (page
, bbox
))) {
934 clearpixmap (tile
->pixmap
);
936 dev
= fz_new_draw_device (state
.ctx
, tile
->pixmap
);
937 ctm
= pagectm (page
);
938 fz_rect_from_irect (&rect
, &bbox
);
939 fz_run_display_list (page
->dlist
, dev
, &ctm
, &rect
, NULL
);
940 fz_free_device (dev
);
945 #ifdef SUMATRA_LOOKUP
946 /* Following two functions are taken (almost) verbatim from SumatraPDF
950 pdf_load_page_objs_rec(pdf_document
*doc
, pdf_obj
*node
, int *page_no
, pdf_obj
**page_objs
)
952 fz_context
*ctx
= doc
->ctx
;
954 if (pdf_mark_obj(node
))
955 fz_throw(ctx
, FZ_ERROR_GENERIC
, "cycle in page tree");
958 pdf_obj
*kids
= pdf_dict_gets(node
, "Kids");
959 int len
= pdf_array_len(kids
), i
;
960 for (i
= 0; i
< len
; i
++) {
961 pdf_obj
*kid
= pdf_array_get(kids
, i
);
962 char *type
= pdf_to_name(pdf_dict_gets(kid
, "Type"));
963 if (!strcmp(type
, "Page")) {
964 if (*page_no
> pdf_count_pages(doc
))
965 fz_throw(ctx
, FZ_ERROR_GENERIC
, "found more /Page objects than anticipated");
966 page_objs
[*page_no
- 1] = pdf_keep_obj(kid
);
969 else if (!strcmp(type
, "Pages")) {
970 int count
= pdf_to_int(pdf_dict_gets(kid
, "Count"));
972 pdf_load_page_objs_rec(doc
, kid
, page_no
, page_objs
);
975 fz_warn(ctx
, "non-page object in page tree (%s)", type
);
980 pdf_unmark_obj(node
);
988 pdf_load_page_objs(pdf_document
*doc
, pdf_obj
**page_objs
)
990 pdf_obj
*pages
= pdf_dict_getp(pdf_trailer(doc
), "Root/Pages");
992 pdf_load_page_objs_rec(doc
, pages
, &page_no
, page_objs
);
996 static void initpdims (void)
1000 fz_rect rootmediabox
;
1001 int pageno
, trim
, show
;
1002 int trimw
= 0, cxcount
;
1006 if (state
.trimmargins
&& state
.trimcachepath
) {
1007 trimf
= fopen (state
.trimcachepath
, "rb");
1009 trimf
= fopen (state
.trimcachepath
, "wb");
1014 if (state
.trimmargins
|| state
.type
== DPDF
|| !state
.cxack
)
1015 cxcount
= state
.pagecount
;
1017 cxcount
= MIN (state
.pagecount
, 1);
1019 if (state
.type
== DPDF
) {
1021 obj
= pdf_dict_getp (pdf_trailer (state
.u
.pdf
),
1022 "Root/Pages/MediaBox");
1023 pdf_to_rect (state
.ctx
, obj
, &rootmediabox
);
1026 #ifdef SUMATRA_LOOKUP
1027 if (state
.type
== DPDF
1028 && (!state
.pdflut
.objs
|| state
.pdflut
.pdf
!= state
.u
.pdf
)) {
1029 state
.pdflut
.objs
= malloc (sizeof (*state
.pdflut
.objs
) * cxcount
);
1030 if (!state
.pdflut
.objs
) {
1031 err (1, "malloc pageobjs %zu %d %zu failed",
1032 sizeof (*state
.pdflut
.objs
), cxcount
,
1033 sizeof (*state
.pdflut
.objs
) * cxcount
);
1035 state
.pdflut
.count
= cxcount
;
1036 pdf_load_page_objs (state
.u
.pdf
, state
.pdflut
.objs
);
1037 state
.pdflut
.pdf
= state
.u
.pdf
;
1041 for (pageno
= 0; pageno
< cxcount
; ++pageno
) {
1046 switch (state
.type
) {
1048 pdf_document
*pdf
= state
.u
.pdf
;
1049 pdf_obj
*pageref
, *pageobj
;
1051 #ifdef SUMATRA_LOOKUP
1052 pageref
= state
.pdflut
.objs
[pageno
];
1054 pageref
= pdf_lookup_page_obj (pdf
, pageno
);
1056 pageobj
= pdf_resolve_indirect (pageref
);
1058 if (state
.trimmargins
) {
1062 fz_try (state
.ctx
) {
1063 page
= pdf_load_page (pdf
, pageno
);
1064 obj
= pdf_dict_gets (pageobj
, "llpp.TrimBox");
1065 trim
= state
.trimanew
|| !obj
;
1071 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
1072 dev
->hints
|= FZ_IGNORE_SHADE
;
1073 fz_invert_matrix (&ctm
, &page
->ctm
);
1074 pdf_run_page (pdf
, page
, dev
, &fz_identity
, NULL
);
1075 fz_free_device (dev
);
1077 rect
.x0
+= state
.trimfuzz
.x0
;
1078 rect
.x1
+= state
.trimfuzz
.x1
;
1079 rect
.y0
+= state
.trimfuzz
.y0
;
1080 rect
.y1
+= state
.trimfuzz
.y1
;
1081 fz_transform_rect (&rect
, &ctm
);
1082 fz_intersect_rect (&rect
, &page
->mediabox
);
1084 if (fz_is_empty_rect (&rect
)) {
1085 mediabox
= page
->mediabox
;
1091 obj
= pdf_new_array (pdf
, 4);
1092 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.x0
));
1093 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.y0
));
1094 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.x1
));
1095 pdf_array_push (obj
, pdf_new_real (pdf
, mediabox
.y1
));
1096 pdf_dict_puts (pageobj
, "llpp.TrimBox", obj
);
1099 mediabox
.x0
= pdf_to_real (pdf_array_get (obj
, 0));
1100 mediabox
.y0
= pdf_to_real (pdf_array_get (obj
, 1));
1101 mediabox
.x1
= pdf_to_real (pdf_array_get (obj
, 2));
1102 mediabox
.y1
= pdf_to_real (pdf_array_get (obj
, 3));
1105 rotate
= page
->rotate
;
1106 pdf_free_page (pdf
, page
);
1108 show
= trim
? pageno
% 5 == 0 : pageno
% 20 == 0;
1110 printd ("progress %f Trimming %d",
1111 (double) (pageno
+ 1) / state
.pagecount
,
1115 fz_catch (state
.ctx
) {
1116 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1123 pdf_to_rect (state
.ctx
, pdf_dict_gets (pageobj
, "MediaBox"),
1125 if (fz_is_empty_rect (&mediabox
)) {
1133 pdf_to_rect (state
.ctx
, pdf_dict_gets (pageobj
, "CropBox"),
1135 if (!fz_is_empty_rect (&cropbox
)) {
1140 fz_intersect_rect (&mediabox
, &cropbox
);
1145 if (fz_is_empty_rect (&rootmediabox
)) {
1147 "cannot find page size for page %d\n",
1151 mediabox
= rootmediabox
;
1155 rotate
= pdf_to_int (pdf_dict_gets (pageobj
, "Rotate"));
1164 fz_try (state
.ctx
) {
1165 page
= xps_load_page (state
.u
.xps
, pageno
);
1166 xps_bound_page (state
.u
.xps
, page
, &mediabox
);
1168 if (state
.trimmargins
) {
1172 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
1173 dev
->hints
|= FZ_IGNORE_SHADE
;
1174 xps_run_page (state
.u
.xps
, page
, dev
,
1175 &fz_identity
, NULL
);
1176 fz_free_device (dev
);
1178 rect
.x0
+= state
.trimfuzz
.x0
;
1179 rect
.x1
+= state
.trimfuzz
.x1
;
1180 rect
.y0
+= state
.trimfuzz
.y0
;
1181 rect
.y1
+= state
.trimfuzz
.y1
;
1182 fz_intersect_rect (&rect
, &mediabox
);
1184 if (!fz_is_empty_rect (&rect
)) {
1188 xps_free_page (state
.u
.xps
, page
);
1190 printd ("progress %f loading %d",
1191 (double) (pageno
+ 1) / state
.pagecount
,
1195 fz_catch (state
.ctx
) {
1207 if (state
.trimmargins
&& trimw
) {
1210 fz_try (state
.ctx
) {
1211 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1212 cbz_bound_page (state
.u
.cbz
, page
, &mediabox
);
1213 cbz_free_page (state
.u
.cbz
, page
);
1214 printd ("progress %f Trimming %d",
1215 (double) (pageno
+ 1) / state
.pagecount
,
1218 fz_catch (state
.ctx
) {
1219 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1222 int n
= fwrite (&mediabox
, sizeof (mediabox
), 1, trimf
);
1224 err (1, "fwrite trim mediabox");
1230 int n
= fread (&mediabox
, sizeof (mediabox
), 1, trimf
);
1232 err (1, "fread trim mediabox");
1238 fz_try (state
.ctx
) {
1239 page
= cbz_load_page (state
.u
.cbz
, pageno
);
1240 cbz_bound_page (state
.u
.cbz
, page
, &mediabox
);
1241 cbz_free_page (state
.u
.cbz
, page
);
1243 fz_catch (state
.ctx
) {
1244 fprintf (stderr
, "failed to load cbz page\n");
1262 fz_try (state
.ctx
) {
1263 page
= image_load_page (state
.u
.img
, pageno
);
1264 image_bound_page (state
.u
.img
, page
, &mediabox
);
1265 image_free_page (state
.u
.img
, page
);
1267 fz_catch (state
.ctx
) {
1268 fprintf (stderr
, "failed to load page %d\n", pageno
+1);
1274 ARSERT (0 && state
.type
);
1277 if (state
.pagedimcount
== 0
1278 || (p
= &state
.pagedims
[state
.pagedimcount
-1], p
->rotate
!= rotate
)
1279 || memcmp (&p
->mediabox
, &mediabox
, sizeof (mediabox
))) {
1282 size
= (state
.pagedimcount
+ 1) * sizeof (*state
.pagedims
);
1283 state
.pagedims
= realloc (state
.pagedims
, size
);
1284 if (!state
.pagedims
) {
1285 err (1, "realloc pagedims to %" FMT_s
" (%d elems)",
1286 size
, state
.pagedimcount
+ 1);
1289 p
= &state
.pagedims
[state
.pagedimcount
++];
1291 p
->mediabox
= mediabox
;
1296 if (state
.trimmargins
) {
1297 printd ("progress 1 Trimmed %d pages in %f seconds",
1298 state
.pagecount
, end
- start
);
1301 printd ("vmsg Processed %d pages in %f seconds",
1302 state
.pagecount
, end
- start
);
1306 if (fclose (trimf
)) {
1312 static void layout (void)
1317 struct pagedim
*p
= p
;
1318 double zw
, w
, maxw
= 0.0, zoom
= zoom
;
1320 if (state
.pagedimcount
== 0) return;
1322 switch (state
.fitmodel
) {
1323 case FitProportional
:
1324 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
) {
1327 p
= &state
.pagedims
[pindex
];
1328 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1330 fz_transform_rect (&box
, &rm
);
1332 x0
= MIN (box
.x0
, box
.x1
);
1333 x1
= MAX (box
.x0
, box
.x1
);
1336 maxw
= MAX (w
, maxw
);
1337 zoom
= state
.w
/ maxw
;
1349 ARSERT (0 && state
.fitmodel
);
1352 for (pindex
= 0; pindex
< state
.pagedimcount
; ++pindex
) {
1356 p
= &state
.pagedims
[pindex
];
1357 fz_rotate (&ctm
, state
.rotate
);
1358 fz_rotate (&rm
, p
->rotate
+ state
.rotate
);
1360 fz_transform_rect (&box
, &rm
);
1361 w
= box
.x1
- box
.x0
;
1362 switch (state
.fitmodel
) {
1363 case FitProportional
:
1364 p
->left
= ((maxw
- w
) * zoom
) / 2.0;
1370 h
= box
.y1
- box
.y0
;
1372 zoom
= MIN (zw
, zh
);
1373 p
->left
= (maxw
- (w
* zoom
)) / 2.0;
1382 fz_scale (&p
->zoomctm
, zoom
, zoom
);
1383 fz_concat (&ctm
, &p
->zoomctm
, &ctm
);
1385 fz_rotate (&rm
, p
->rotate
);
1386 p
->pagebox
= p
->mediabox
;
1387 fz_transform_rect (&p
->pagebox
, &rm
);
1388 p
->pagebox
.x1
-= p
->pagebox
.x0
;
1389 p
->pagebox
.y1
-= p
->pagebox
.y0
;
1393 fz_transform_rect (&rect
, &ctm
);
1394 fz_round_rect (&p
->bounds
, &rect
);
1397 fz_translate (&tm
, 0, -p
->mediabox
.y1
);
1398 fz_scale (&sm
, zoom
, -zoom
);
1399 fz_concat (&ctm
, &tm
, &sm
);
1400 fz_concat (&p
->lctm
, &ctm
, &rm
);
1406 int x0
= MIN (p
->bounds
.x0
, p
->bounds
.x1
);
1407 int y0
= MIN (p
->bounds
.y0
, p
->bounds
.y1
);
1408 int x1
= MAX (p
->bounds
.x0
, p
->bounds
.x1
);
1409 int y1
= MAX (p
->bounds
.y0
, p
->bounds
.y1
);
1413 printd ("pdim %d %d %d %d", p
->pageno
, w
, h
, p
->left
);
1414 } while (p
-- != state
.pagedims
);
1418 struct anchor
{ int n
; int x
; int y
; int w
; int h
; }
1419 desttoanchor (fz_link_dest
*dest
)
1423 struct pagedim
*pdim
= state
.pagedims
;
1428 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1429 if (state
.pagedims
[i
].pageno
> dest
->ld
.gotor
.page
)
1431 pdim
= &state
.pagedims
[i
];
1433 if (dest
->ld
.gotor
.flags
& fz_link_flag_t_valid
) {
1435 if (dest
->ld
.gotor
.flags
& fz_link_flag_l_valid
)
1436 p
.x
= dest
->ld
.gotor
.lt
.x
;
1439 p
.y
= dest
->ld
.gotor
.lt
.y
;
1440 fz_transform_point (&p
, &pdim
->lctm
);
1444 if (dest
->ld
.gotor
.page
>= 0 && dest
->ld
.gotor
.page
< 1<<30) {
1445 double x0
, x1
, y0
, y1
;
1447 x0
= MIN (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1448 x1
= MAX (pdim
->bounds
.x0
, pdim
->bounds
.x1
);
1450 y0
= MIN (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1451 y1
= MAX (pdim
->bounds
.y0
, pdim
->bounds
.y1
);
1453 a
.n
= dest
->ld
.gotor
.page
;
1458 static void recurse_outline (fz_outline
*outline
, int level
)
1461 switch (outline
->dest
.kind
) {
1464 struct anchor a
= desttoanchor (&outline
->dest
);
1467 printd ("o %d %d %d %d %s",
1468 level
, a
.n
, a
.y
, a
.h
, outline
->title
);
1474 printd ("ou %d %" FMT_s
" %s %s", level
,
1475 strlen (outline
->title
), outline
->title
,
1476 outline
->dest
.ld
.uri
.uri
);
1480 printd ("on %d %s", level
, outline
->title
);
1484 printd ("emsg Unhandled outline kind %d for %s\n",
1485 outline
->dest
.kind
, outline
->title
);
1488 if (outline
->down
) {
1489 recurse_outline (outline
->down
, level
+ 1);
1491 outline
= outline
->next
;
1495 static void process_outline (void)
1497 fz_outline
*outline
;
1499 if (!state
.needoutline
) return;
1501 state
.needoutline
= 0;
1502 switch (state
.type
) {
1504 outline
= pdf_load_outline (state
.u
.pdf
);
1507 outline
= xps_load_outline (state
.u
.xps
);
1514 recurse_outline (outline
, 0);
1515 fz_free_outline (state
.ctx
, outline
);
1519 static char *strofspan (fz_text_span
*span
)
1524 size_t size
= 0, cap
= 80;
1526 p
= malloc (cap
+ 1);
1527 if (!p
) return NULL
;
1529 for (ch
= span
->text
; ch
< span
->text
+ span
->len
; ++ch
) {
1530 int n
= fz_runetochar (utf8
, ch
->c
);
1531 if (size
+ n
> cap
) {
1533 p
= realloc (p
, cap
+ 1);
1534 if (!p
) return NULL
;
1537 memcpy (p
+ size
, utf8
, n
);
1544 static int matchspan (regex_t
*re
, fz_text_page
*page
,
1545 fz_text_span
*span
, fz_matrix ctm
,
1546 int stop
, int pageno
, double start
)
1553 fz_point p1
, p2
, p3
, p4
;
1555 p
= strofspan (span
);
1558 ret
= regexec (re
, p
, 1, &rm
, 0);
1561 if (ret
!= REG_NOMATCH
) {
1564 size
= regerror (ret
, re
, errbuf
, sizeof (errbuf
));
1565 printd ("msg regexec error `%.*s'",
1566 (int) size
, errbuf
);
1574 for (a
= 0, c
= 0; c
< rm
.rm_so
&& a
< l
; a
++) {
1575 c
+= fz_runelen (span
->text
[a
].c
);
1577 for (b
= a
; c
< rm
.rm_eo
- 1 && b
< l
; b
++) {
1578 c
+= fz_runelen (span
->text
[b
].c
);
1581 if (fz_runelen (span
->text
[b
].c
) > 1) {
1585 fz_text_char_bbox (&sb
, span
, a
);
1586 fz_text_char_bbox (&eb
, span
, b
);
1598 printd ("firstmatch %d %d %f %f %f %f %f %f %f %f",
1605 printd ("progress 1 found at %d `%.*s' in %f sec",
1606 pageno
+ 1, (int) (rm
.rm_eo
- rm
.rm_so
), &p
[rm
.rm_so
],
1610 printd ("match %d %d %f %f %f %f %f %f %f %f",
1622 static int compareblocks (const void *l
, const void *r
)
1624 fz_text_block
const *ls
= l
;
1625 fz_text_block
const* rs
= r
;
1626 return ls
->bbox
.y0
- rs
->bbox
.y0
;
1629 /* wishful thinking function */
1630 static void search (regex_t
*re
, int pageno
, int y
, int forward
)
1635 union { void *ptr
; pdf_page
*pdfpage
; xps_page
*xpspage
; } u
;
1637 fz_text_sheet
*sheet
;
1638 struct pagedim
*pdim
, *pdimprev
;
1639 int stop
= 0, niters
= 0;
1642 if (!(state
.type
== DPDF
|| state
.type
== DXPS
))
1646 while (pageno
>= 0 && pageno
< state
.pagecount
&& !stop
) {
1647 if (niters
++ == 5) {
1650 printd ("progress 1 attention requested aborting search at %d",
1655 printd ("progress %f searching in page %d",
1656 (double) (pageno
+ 1) / state
.pagecount
,
1661 for (i
= 0; i
< state
.pagedimcount
; ++i
) {
1662 pdim
= &state
.pagedims
[i
];
1663 if (pdim
->pageno
== pageno
) {
1666 if (pdim
->pageno
> pageno
) {
1675 sheet
= fz_new_text_sheet (state
.ctx
);
1676 text
= fz_new_text_page (state
.ctx
);
1677 tdev
= fz_new_text_device (state
.ctx
, sheet
, text
);
1679 switch (state
.type
) {
1682 fz_try (state
.ctx
) {
1683 u
.pdfpage
= pdf_load_page (state
.u
.pdf
, pageno
);
1684 trimctm (u
.pdfpage
, pdim
- state
.pagedims
);
1685 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->zoomctm
);
1686 fz_begin_page (tdev
, &fz_infinite_rect
, &ctm
);
1687 pdf_run_page (state
.u
.pdf
, u
.pdfpage
, tdev
, &ctm
, NULL
);
1690 fz_catch (state
.ctx
) {
1691 fz_free_device (tdev
);
1698 u
.xpspage
= xps_load_page (state
.u
.xps
, pageno
);
1699 xps_run_page (state
.u
.xps
, u
.xpspage
, tdev
, &pdim
->ctm
, NULL
);
1703 ARSERT (0 && state
.type
);
1706 qsort (text
->blocks
, text
->len
, sizeof (*text
->blocks
), compareblocks
);
1707 fz_free_device (tdev
);
1709 for (j
= 0; j
< text
->len
; ++j
) {
1712 fz_text_block
*block
;
1714 pb
= &text
->blocks
[forward
? j
: text
->len
- 1 - j
];
1715 if (pb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
1718 for (k
= 0; k
< block
->len
; ++k
) {
1723 line
= &block
->lines
[k
];
1724 if (line
->bbox
.y0
< y
+ 1) continue;
1727 line
= &block
->lines
[block
->len
- 1 - k
];
1728 if (line
->bbox
.y0
> y
- 1) continue;
1731 for (span
= line
->first_span
; span
; span
= span
->next
) {
1732 switch (matchspan (re
, text
, span
, ctm
,
1733 stop
, pageno
, start
)) {
1735 case 1: stop
= 1; break;
1736 case -1: stop
= 1; goto endloop
;
1751 fz_free_text_page (state
.ctx
, text
);
1752 fz_free_text_sheet (state
.ctx
, sheet
);
1754 state
.freepage (u
.ptr
);
1759 printd ("progress 1 no matches %f sec", end
- start
);
1761 printd ("clearrects");
1764 static void set_tex_params (int colorspace
)
1771 switch (colorspace
) {
1773 state
.texiform
= GL_RGBA8
;
1774 state
.texform
= GL_RGBA
;
1775 state
.texty
= GL_UNSIGNED_BYTE
;
1776 state
.colorspace
= fz_device_rgb (state
.ctx
);
1779 state
.texiform
= GL_RGBA8
;
1780 state
.texform
= GL_BGRA
;
1781 state
.texty
= endianness
.s
> 1
1782 ? GL_UNSIGNED_INT_8_8_8_8
1783 : GL_UNSIGNED_INT_8_8_8_8_REV
;
1784 state
.colorspace
= fz_device_bgr (state
.ctx
);
1787 state
.texiform
= GL_LUMINANCE_ALPHA
;
1788 state
.texform
= GL_LUMINANCE_ALPHA
;
1789 state
.texty
= GL_UNSIGNED_BYTE
;
1790 state
.colorspace
= fz_device_gray (state
.ctx
);
1793 errx (1, "invalid colorspce %d", colorspace
);
1797 static void realloctexts (int texcount
)
1801 if (texcount
== state
.texcount
) return;
1803 if (texcount
< state
.texcount
) {
1804 glDeleteTextures (state
.texcount
- texcount
,
1805 state
.texids
+ texcount
);
1808 size
= texcount
* sizeof (*state
.texids
);
1809 state
.texids
= realloc (state
.texids
, size
);
1810 if (!state
.texids
) {
1811 err (1, "realloc texids %" FMT_s
, size
);
1814 size
= texcount
* sizeof (*state
.texowners
);
1815 state
.texowners
= realloc (state
.texowners
, size
);
1816 if (!state
.texowners
) {
1817 err (1, "realloc texowners %" FMT_s
, size
);
1819 if (texcount
> state
.texcount
) {
1822 glGenTextures (texcount
- state
.texcount
,
1823 state
.texids
+ state
.texcount
);
1824 for (i
= state
.texcount
; i
< texcount
; ++i
) {
1825 state
.texowners
[i
].w
= -1;
1826 state
.texowners
[i
].slice
= NULL
;
1829 state
.texcount
= texcount
;
1833 static char *mbtoutf8 (char *s
)
1839 len
= mbstowcs (NULL
, s
, strlen (s
));
1844 if (len
== (size_t) -1) {
1849 tmp
= malloc (len
* sizeof (wchar_t));
1854 ret
= mbstowcs (tmp
, s
, len
);
1855 if (ret
== (size_t) -1) {
1861 for (i
= 0; i
< ret
; ++i
) {
1862 len
+= fz_runelen (tmp
[i
]);
1865 p
= r
= malloc (len
+ 1);
1871 for (i
= 0; i
< ret
; ++i
) {
1872 p
+= fz_runetochar (p
, tmp
[i
]);
1879 CAMLprim value
ml_mbtoutf8 (value s_v
)
1885 s
= String_val (s_v
);
1891 ret_v
= caml_copy_string (r
);
1897 static void * mainloop (void *unused
)
1900 int len
, ret
, oldlen
= 0;
1905 errx (1, "readlen returned 0");
1908 if (oldlen
< len
+ 1) {
1909 p
= realloc (p
, len
+ 1);
1911 err (1, "realloc %d failed", len
+ 1);
1918 if (!strncmp ("open", p
, 4)) {
1919 int wthack
, off
, ok
= 0;
1925 ret
= sscanf (p
+ 5, " %d %d %n", &wthack
, &state
.cxack
, &off
);
1927 errx (1, "malformed open `%.*s' ret=%d", len
, p
, ret
);
1930 filename
= p
+ 5 + off
;
1931 filenamelen
= strlen (filename
);
1932 password
= filename
+ filenamelen
+ 1;
1935 fz_try (state
.ctx
) {
1936 openxref (filename
, password
);
1939 fz_catch (state
.ctx
) {
1940 utf8filename
= mbtoutf8 (filename
);
1941 printd ("msg Could not open %s", utf8filename
);
1951 utf8filename
= mbtoutf8 (filename
);
1952 printd ("msg Opened %s (press h/F1 to get help)",
1954 if (utf8filename
!= filename
) {
1955 free (utf8filename
);
1958 state
.needoutline
= 1;
1961 else if (!strncmp ("cs", p
, 2)) {
1964 ret
= sscanf (p
+ 2, " %d", &colorspace
);
1966 errx (1, "malformed cs `%.*s' ret=%d", len
, p
, ret
);
1969 set_tex_params (colorspace
);
1970 for (i
= 0; i
< state
.texcount
; ++i
) {
1971 state
.texowners
[i
].w
= -1;
1972 state
.texowners
[i
].slice
= NULL
;
1976 else if (!strncmp ("freepage", p
, 8)) {
1979 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1981 errx (1, "malformed freepage `%.*s' ret=%d", len
, p
, ret
);
1985 else if (!strncmp ("freetile", p
, 8)) {
1988 ret
= sscanf (p
+ 8, " %" FMT_ptr
, FMT_ptr_cast (&ptr
));
1990 errx (1, "malformed freetile `%.*s' ret=%d", len
, p
, ret
);
1994 else if (!strncmp ("search", p
, 6)) {
1995 int icase
, pageno
, y
, ret
, len2
, forward
;
1999 ret
= sscanf (p
+ 6, " %d %d %d %d,%n",
2000 &icase
, &pageno
, &y
, &forward
, &len2
);
2002 errx (1, "malformed search `%s' ret=%d", p
, ret
);
2005 pattern
= p
+ 6 + len2
;
2006 ret
= regcomp (&re
, pattern
,
2007 REG_EXTENDED
| (icase
? REG_ICASE
: 0));
2012 size
= regerror (ret
, &re
, errbuf
, sizeof (errbuf
));
2013 printd ("msg regcomp failed `%.*s'", (int) size
, errbuf
);
2016 search (&re
, pageno
, y
, forward
);
2020 else if (!strncmp ("geometry", p
, 8)) {
2024 ret
= sscanf (p
+ 8, " %d %d %d", &w
, &h
, &fitmodel
);
2026 errx (1, "malformed geometry `%.*s' ret=%d", len
, p
, ret
);
2034 for (i
= 0; i
< state
.texcount
; ++i
) {
2035 state
.texowners
[i
].slice
= NULL
;
2038 state
.fitmodel
= fitmodel
;
2043 unlock ("geometry");
2044 printd ("continue %d", state
.pagecount
);
2046 else if (!strncmp ("reqlayout", p
, 9)) {
2048 int rotate
, fitmodel
, off
, h
;
2051 ret
= sscanf (p
+ 9, " %d %d %d %n",
2052 &rotate
, &fitmodel
, &h
, &off
);
2054 errx (1, "bad reqlayout line `%.*s' ret=%d", len
, p
, ret
);
2057 if (state
.rotate
!= rotate
|| state
.fitmodel
!= fitmodel
) {
2060 state
.rotate
= rotate
;
2061 state
.fitmodel
= fitmodel
;
2066 nameddest
= p
+ 9 + off
;
2067 if (state
.type
== DPDF
&& nameddest
&& *nameddest
) {
2070 pdf_obj
*needle
, *obj
;
2072 needle
= pdf_new_string (state
.u
.pdf
, nameddest
,
2073 strlen (nameddest
));
2074 obj
= pdf_lookup_dest (state
.u
.pdf
, needle
);
2076 dest
= pdf_parse_link_dest (state
.u
.pdf
, FZ_LINK_GOTO
, obj
);
2078 a
= desttoanchor (&dest
);
2080 printd ("a %d %d %d", a
.n
, a
.x
, a
.y
);
2083 printd ("emsg failed to parse destination `%s'\n",
2088 printd ("emsg destination `%s' not found\n",
2091 pdf_drop_obj (needle
);
2095 unlock ("reqlayout");
2096 printd ("continue %d", state
.pagecount
);
2098 else if (!strncmp ("page", p
, 4)) {
2101 int pageno
, pindex
, ret
;
2103 ret
= sscanf (p
+ 4, " %d %d", &pageno
, &pindex
);
2105 errx (1, "bad page line `%.*s' ret=%d", len
, p
, ret
);
2110 page
= loadpage (pageno
, pindex
);
2114 printd ("page %" FMT_ptr
" %f", FMT_ptr_cast2 (page
), b
- a
);
2116 else if (!strncmp ("tile", p
, 4)) {
2117 int x
, y
, w
, h
, ret
;
2123 ret
= sscanf (p
+ 4, " %" FMT_ptr
" %d %d %d %d %" FMT_ptr
,
2124 FMT_ptr_cast (&page
), &x
, &y
, &w
, &h
, &data
);
2126 errx (1, "bad tile line `%.*s' ret=%d", len
, p
, ret
);
2131 tile
= rendertile (page
, x
, y
, w
, h
, data
);
2135 printd ("tile %d %d %" FMT_ptr
" %u %f",
2137 FMT_ptr_cast2 (tile
),
2138 tile
->w
* tile
->h
* tile
->pixmap
->n
,
2141 else if (!strncmp ("settrim", p
, 7)) {
2145 ret
= sscanf (p
+ 7, " %d %d %d %d %d",
2146 &trimmargins
, &fuzz
.x0
, &fuzz
.y0
, &fuzz
.x1
, &fuzz
.y1
);
2148 errx (1, "malformed settrim `%.*s' ret=%d", len
, p
, ret
);
2152 state
.trimmargins
= trimmargins
;
2153 state
.needoutline
= 1;
2154 if (memcmp (&fuzz
, &state
.trimfuzz
, sizeof (fuzz
))) {
2156 state
.trimfuzz
= fuzz
;
2158 state
.pagedimcount
= 0;
2159 free (state
.pagedims
);
2160 state
.pagedims
= NULL
;
2165 printd ("continue %d", state
.pagecount
);
2167 else if (!strncmp ("sliceh", p
, 6)) {
2170 ret
= sscanf (p
+ 6, " %d", &h
);
2172 errx (1, "malformed sliceh `%.*s' ret=%d", len
, p
, ret
);
2174 if (h
!= state
.sliceheight
) {
2177 state
.sliceheight
= h
;
2178 for (i
= 0; i
< state
.texcount
; ++i
) {
2179 state
.texowners
[i
].w
= -1;
2180 state
.texowners
[i
].h
= -1;
2181 state
.texowners
[i
].slice
= NULL
;
2185 else if (!strncmp ("interrupt", p
, 9)) {
2186 printd ("vmsg interrupted");
2189 errx (1, "unknown command %.*s", len
, p
);
2195 CAMLprim value
ml_realloctexts (value texcount_v
)
2197 CAMLparam1 (texcount_v
);
2200 if (trylock ("ml_realloctexts")) {
2204 realloctexts (Int_val (texcount_v
));
2206 unlock ("ml_realloctexts");
2209 CAMLreturn (Val_bool (ok
));
2212 static void recti (int x0
, int y0
, int x1
, int y1
)
2214 GLfloat
*v
= state
.vertices
;
2216 glVertexPointer (2, GL_FLOAT
, 0, v
);
2217 v
[0] = x0
; v
[1] = y0
;
2218 v
[2] = x1
; v
[3] = y0
;
2219 v
[4] = x0
; v
[5] = y1
;
2220 v
[6] = x1
; v
[7] = y1
;
2221 glDrawArrays (GL_TRIANGLE_STRIP
, 0, 4);
2224 static void showsel (struct page
*page
, int ox
, int oy
)
2230 fz_page_block
*pageb
;
2231 fz_text_block
*block
;
2232 struct mark first
, last
;
2233 unsigned char selcolor
[] = {15,15,15,140};
2235 first
= page
->fmark
;
2238 if (!first
.span
|| !last
.span
) return;
2240 glEnable (GL_BLEND
);
2241 glBlendFunc (GL_SRC_ALPHA
, GL_SRC_ALPHA
);
2242 glColor4ubv (selcolor
);
2244 ox
+= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2245 oy
+= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2246 for (pageb
= page
->text
->blocks
;
2247 pageb
< page
->text
->blocks
+ page
->text
->len
;
2249 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
2250 block
= pageb
->u
.text
;
2252 for (line
= block
->lines
;
2253 line
< block
->lines
+ block
->len
;
2256 rect
= fz_empty_rect
;
2258 for (span
= line
->first_span
; span
; span
= span
->next
) {
2260 bbox
.x0
= bbox
.y0
= bbox
.x1
= bbox
.y1
= 0;
2265 if (span
== page
->fmark
.span
&& span
== page
->lmark
.span
) {
2267 j
= MIN (first
.i
, last
.i
);
2268 k
= MAX (first
.i
, last
.i
);
2271 if (span
== first
.span
) {
2275 else if (span
== last
.span
) {
2282 for (i
= j
; i
<= k
; ++i
) {
2284 fz_union_rect (&rect
,
2285 fz_text_char_bbox (&bbox
, span
, i
));
2287 fz_round_rect (&bbox
, &rect
);
2288 lprintf ("%d %d %d %d oy=%d ox=%d\n",
2295 recti (bbox
.x0
+ ox
, bbox
.y0
+ oy
,
2296 bbox
.x1
+ ox
, bbox
.y1
+ oy
);
2297 if (span
== last
.span
) {
2300 rect
= fz_empty_rect
;
2306 glDisable (GL_BLEND
);
2311 static void highlightlinks (struct page
*page
, int xoff
, int yoff
)
2313 fz_matrix ctm
, tm
, pm
;
2314 fz_link
*link
, *links
;
2315 GLfloat
*texcoords
= state
.texcoords
;
2316 GLfloat
*vertices
= state
.vertices
;
2318 switch (page
->type
) {
2320 links
= page
->u
.pdfpage
->links
;
2324 links
= page
->u
.xpspage
->links
;
2331 glEnable (GL_TEXTURE_1D
);
2332 glEnable (GL_BLEND
);
2333 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2334 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
2336 xoff
-= state
.pagedims
[page
->pdimno
].bounds
.x0
;
2337 yoff
-= state
.pagedims
[page
->pdimno
].bounds
.y0
;
2338 fz_translate (&tm
, xoff
, yoff
);
2339 pm
= pagectm (page
);
2340 fz_concat (&ctm
, &pm
, &tm
);
2342 glTexCoordPointer (1, GL_FLOAT
, 0, texcoords
);
2343 glVertexPointer (2, GL_FLOAT
, 0, vertices
);
2345 for (link
= links
; link
; link
= link
->next
) {
2346 fz_point p1
, p2
, p3
, p4
;
2348 p1
.x
= link
->rect
.x0
;
2349 p1
.y
= link
->rect
.y0
;
2351 p2
.x
= link
->rect
.x1
;
2352 p2
.y
= link
->rect
.y0
;
2354 p3
.x
= link
->rect
.x1
;
2355 p3
.y
= link
->rect
.y1
;
2357 p4
.x
= link
->rect
.x0
;
2358 p4
.y
= link
->rect
.y1
;
2360 fz_transform_point (&p1
, &ctm
);
2361 fz_transform_point (&p2
, &ctm
);
2362 fz_transform_point (&p3
, &ctm
);
2363 fz_transform_point (&p4
, &ctm
);
2365 switch (link
->dest
.kind
) {
2366 case FZ_LINK_GOTO
: glColor3ub (255, 0, 0); break;
2367 case FZ_LINK_URI
: glColor3ub (0, 0, 255); break;
2368 case FZ_LINK_LAUNCH
: glColor3ub (0, 255, 0); break;
2369 default: glColor3ub (0, 0, 0); break;
2377 t
= sqrtf (w
*w
+ h
*h
) * .25f
;
2381 s
= sqrtf (w
*w
+ h
*h
) * .25f
;
2383 texcoords
[0] = 0; vertices
[0] = p1
.x
; vertices
[1] = p1
.y
;
2384 texcoords
[1] = t
; vertices
[2] = p2
.x
; vertices
[3] = p2
.y
;
2386 texcoords
[2] = 0; vertices
[4] = p2
.x
; vertices
[5] = p2
.y
;
2387 texcoords
[3] = s
; vertices
[6] = p3
.x
; vertices
[7] = p3
.y
;
2389 texcoords
[4] = 0; vertices
[8] = p3
.x
; vertices
[9] = p3
.y
;
2390 texcoords
[5] = t
; vertices
[10] = p4
.x
; vertices
[11] = p4
.y
;
2392 texcoords
[6] = 0; vertices
[12] = p4
.x
; vertices
[13] = p4
.y
;
2393 texcoords
[7] = s
; vertices
[14] = p1
.x
; vertices
[15] = p1
.y
;
2395 glDrawArrays (GL_LINES
, 0, 8);
2398 glDisable (GL_BLEND
);
2399 glDisable (GL_TEXTURE_1D
);
2402 static int compareslinks (const void *l
, const void *r
)
2404 struct slink
const *ls
= l
;
2405 struct slink
const *rs
= r
;
2406 if (ls
->bbox
.y0
== rs
->bbox
.y0
) {
2407 return rs
->bbox
.x0
- rs
->bbox
.x0
;
2409 return ls
->bbox
.y0
- rs
->bbox
.y0
;
2412 static void droptext (struct page
*page
)
2415 fz_free_text_page (state
.ctx
, page
->text
);
2418 page
->fmark
.span
= NULL
;
2419 page
->lmark
.span
= NULL
;
2423 fz_free_text_sheet (state
.ctx
, page
->sheet
);
2428 static void dropslinks (struct page
*page
)
2431 free (page
->slinks
);
2432 page
->slinks
= NULL
;
2433 page
->slinkcount
= 0;
2437 static void ensureslinks (struct page
*page
)
2441 size_t slinksize
= sizeof (*page
->slinks
);
2442 fz_link
*link
, *links
;
2444 if (state
.gen
!= page
->sgen
) {
2446 page
->sgen
= state
.gen
;
2448 if (page
->slinks
) return;
2450 switch (page
->type
) {
2452 links
= page
->u
.pdfpage
->links
;
2453 trimctm (page
->u
.pdfpage
, page
->pdimno
);
2455 &state
.pagedims
[page
->pdimno
].tctm
,
2456 &state
.pagedims
[page
->pdimno
].ctm
);
2460 links
= page
->u
.xpspage
->links
;
2461 ctm
= state
.pagedims
[page
->pdimno
].ctm
;
2468 for (link
= links
; link
; link
= link
->next
) {
2472 page
->slinkcount
= count
;
2473 page
->slinks
= calloc (count
, slinksize
);
2474 if (!page
->slinks
) {
2475 err (1, "realloc slinks %d", count
);
2478 for (i
= 0, link
= links
; link
; ++i
, link
= link
->next
) {
2482 fz_transform_rect (&rect
, &ctm
);
2483 page
->slinks
[i
].link
= link
;
2484 fz_round_rect (&page
->slinks
[i
].bbox
, &rect
);
2486 qsort (page
->slinks
, count
, slinksize
, compareslinks
);
2490 /* slightly tweaked fmt_ulong by D.J. Bernstein */
2491 static void fmt_linkn (char *s
, unsigned int u
)
2493 unsigned int len
; unsigned int q
;
2494 int zma
= 'z' - 'a' + 1;
2496 while (q
> zma
- 1) { ++len
; q
/= zma
; }
2499 do { *--s
= 'a' + (u
% zma
) - (u
< zma
&& len
> 1); u
/= zma
; } while(u
);
2500 /* handles u == 0 */
2505 static void highlightslinks (struct page
*page
, int xoff
, int yoff
,
2506 int noff
, char *targ
, int tlen
, int hfsize
)
2510 struct slink
*slink
;
2511 double x0
, y0
, x1
, y1
, w
;
2513 ensureslinks (page
);
2514 glColor3ub (0xc3, 0xb0, 0x91);
2515 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2516 fmt_linkn (buf
, i
+ noff
);
2517 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2518 slink
= &page
->slinks
[i
];
2520 x0
= slink
->bbox
.x0
+ xoff
- 5;
2521 y1
= slink
->bbox
.y0
+ yoff
- 5;
2522 y0
= y1
+ 10 + hfsize
;
2523 w
= measure_string (state
.face
, hfsize
, buf
);
2525 recti (x0
, y0
, x1
, y1
);
2529 glEnable (GL_BLEND
);
2530 glBlendFunc (GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
2531 glEnable (GL_TEXTURE_2D
);
2532 glColor3ub (0, 0, 0);
2533 for (i
= 0; i
< page
->slinkcount
; ++i
) {
2534 fmt_linkn (buf
, i
+ noff
);
2535 if (!tlen
|| !strncmp (targ
, buf
, tlen
)) {
2536 slink
= &page
->slinks
[i
];
2538 x0
= slink
->bbox
.x0
+ xoff
;
2539 y0
= slink
->bbox
.y0
+ yoff
+ hfsize
;
2540 draw_string (state
.face
, hfsize
, x0
, y0
, buf
);
2543 glDisable (GL_TEXTURE_2D
);
2544 glDisable (GL_BLEND
);
2547 static void uploadslice (struct tile
*tile
, struct slice
*slice
)
2550 struct slice
*slice1
;
2551 unsigned char *texdata
;
2554 for (slice1
= tile
->slices
; slice
!= slice1
; slice1
++) {
2555 offset
+= slice1
->h
* tile
->w
* tile
->pixmap
->n
;
2557 if (slice
->texindex
!= -1 && slice
->texindex
< state
.texcount
2558 && state
.texowners
[slice
->texindex
].slice
== slice
) {
2559 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[slice
->texindex
]);
2563 int texindex
= state
.texindex
++ % state
.texcount
;
2565 if (state
.texowners
[texindex
].w
== tile
->w
) {
2566 if (state
.texowners
[texindex
].h
>= slice
->h
) {
2570 state
.texowners
[texindex
].h
= slice
->h
;
2574 state
.texowners
[texindex
].h
= slice
->h
;
2577 state
.texowners
[texindex
].w
= tile
->w
;
2578 state
.texowners
[texindex
].slice
= slice
;
2579 slice
->texindex
= texindex
;
2581 glBindTexture (GL_TEXTURE_RECTANGLE_ARB
, state
.texids
[texindex
]);
2583 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
2587 texdata
= tile
->pixmap
->samples
;
2590 glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2602 glTexImage2D (GL_TEXTURE_RECTANGLE_ARB
,
2614 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
2619 CAMLprim value
ml_begintiles (value unit_v
)
2621 CAMLparam1 (unit_v
);
2622 glEnable (GL_TEXTURE_RECTANGLE_ARB
);
2623 glTexCoordPointer (2, GL_FLOAT
, 0, state
.texcoords
);
2624 glVertexPointer (2, GL_FLOAT
, 0, state
.vertices
);
2625 CAMLreturn (unit_v
);
2628 CAMLprim value
ml_endtiles (value unit_v
)
2630 CAMLparam1 (unit_v
);
2631 glDisable (GL_TEXTURE_RECTANGLE_ARB
);
2632 CAMLreturn (unit_v
);
2635 CAMLprim value
ml_drawtile (value args_v
, value ptr_v
)
2637 CAMLparam2 (args_v
, ptr_v
);
2638 int dispx
= Int_val (Field (args_v
, 0));
2639 int dispy
= Int_val (Field (args_v
, 1));
2640 int dispw
= Int_val (Field (args_v
, 2));
2641 int disph
= Int_val (Field (args_v
, 3));
2642 int tilex
= Int_val (Field (args_v
, 4));
2643 int tiley
= Int_val (Field (args_v
, 5));
2644 char *s
= String_val (ptr_v
);
2645 struct tile
*tile
= parse_pointer ("ml_drawtile", s
);
2646 int slicey
, firstslice
;
2647 struct slice
*slice
;
2648 GLfloat
*texcoords
= state
.texcoords
;
2649 GLfloat
*vertices
= state
.vertices
;
2651 firstslice
= tiley
/ tile
->sliceheight
;
2652 slice
= &tile
->slices
[firstslice
];
2653 slicey
= tiley
% tile
->sliceheight
;
2658 dh
= slice
->h
- slicey
;
2659 dh
= MIN (disph
, dh
);
2660 uploadslice (tile
, slice
);
2662 texcoords
[0] = tilex
; texcoords
[1] = slicey
;
2663 texcoords
[2] = tilex
+dispw
; texcoords
[3] = slicey
;
2664 texcoords
[4] = tilex
; texcoords
[5] = slicey
+dh
;
2665 texcoords
[6] = tilex
+dispw
; texcoords
[7] = slicey
+dh
;
2667 vertices
[0] = dispx
; vertices
[1] = dispy
;
2668 vertices
[2] = dispx
+dispw
; vertices
[3] = dispy
;
2669 vertices
[4] = dispx
; vertices
[5] = dispy
+dh
;
2670 vertices
[6] = dispx
+dispw
; vertices
[7] = dispy
+dh
;
2672 glDrawArrays (GL_TRIANGLE_STRIP
, 0, 4);
2676 ARSERT (!(slice
- tile
->slices
>= tile
->slicecount
&& disph
> 0));
2679 CAMLreturn (Val_unit
);
2682 CAMLprim value
ml_postprocess (value ptr_v
, value hlinks_v
,
2683 value xoff_v
, value yoff_v
,
2686 CAMLparam5 (ptr_v
, hlinks_v
, xoff_v
, yoff_v
, li_v
);
2687 int xoff
= Int_val (xoff_v
);
2688 int yoff
= Int_val (yoff_v
);
2689 int noff
= Int_val (Field (li_v
, 0));
2690 char *targ
= String_val (Field (li_v
, 1));
2691 int tlen
= caml_string_length (Field (li_v
, 1));
2692 int hfsize
= Int_val (Field (li_v
, 2));
2693 char *s
= String_val (ptr_v
);
2694 int hlmask
= Int_val (hlinks_v
);
2695 struct page
*page
= parse_pointer ("ml_postprocess", s
);
2698 /* deal with loadpage failed pages */
2702 if (hlmask
& 1) highlightlinks (page
, xoff
, yoff
);
2703 if (trylock ("ml_postprocess")) {
2708 highlightslinks (page
, xoff
, yoff
, noff
, targ
, tlen
, hfsize
);
2709 noff
= page
->slinkcount
;
2711 if (page
->tgen
== state
.gen
) {
2712 showsel (page
, xoff
, yoff
);
2714 unlock ("ml_postprocess");
2717 CAMLreturn (Val_int (noff
));
2720 static fz_link
*getlink (struct page
*page
, int x
, int y
)
2724 const fz_matrix
*tctm
;
2725 fz_link
*link
, *links
;
2727 switch (page
->type
) {
2729 trimctm (page
->u
.pdfpage
, page
->pdimno
);
2730 tctm
= &state
.pagedims
[page
->pdimno
].tctm
;
2731 links
= page
->u
.pdfpage
->links
;
2735 tctm
= &fz_identity
;
2736 links
= page
->u
.xpspage
->links
;
2745 fz_concat (&ctm
, tctm
, &state
.pagedims
[page
->pdimno
].ctm
);
2746 fz_invert_matrix (&ctm
, &ctm
);
2747 fz_transform_point (&p
, &ctm
);
2749 for (link
= links
; link
; link
= link
->next
) {
2750 if (p
.x
>= link
->rect
.x0
&& p
.x
<= link
->rect
.x1
) {
2751 if (p
.y
>= link
->rect
.y0
&& p
.y
<= link
->rect
.y1
) {
2759 static void ensuretext (struct page
*page
)
2761 if (state
.gen
!= page
->tgen
) {
2763 page
->tgen
= state
.gen
;
2769 page
->text
= fz_new_text_page (state
.ctx
);
2770 page
->sheet
= fz_new_text_sheet (state
.ctx
);
2771 tdev
= fz_new_text_device (state
.ctx
, page
->sheet
, page
->text
);
2772 ctm
= pagectm (page
);
2773 fz_begin_page (tdev
, &fz_infinite_rect
, &ctm
);
2774 fz_run_display_list (page
->dlist
, tdev
, &ctm
, &fz_infinite_rect
, NULL
);
2775 qsort (page
->text
->blocks
, page
->text
->len
,
2776 sizeof (*page
->text
->blocks
), compareblocks
);
2778 fz_free_device (tdev
);
2782 CAMLprim value
ml_find_page_with_links (value start_page_v
, value dir_v
)
2784 CAMLparam2 (start_page_v
, dir_v
);
2786 int i
, dir
= Int_val (dir_v
);
2787 int start_page
= Int_val (start_page_v
);
2788 int end_page
= dir
> 0 ? state
.pagecount
: -1;
2790 ret_v
= Val_int (0);
2791 if (!(state
.type
== DPDF
|| state
.type
== DXPS
)) {
2795 lock ("ml_findpage_with_links");
2796 for (i
= start_page
+ dir
; i
!= end_page
; i
+= dir
) {
2799 switch (state
.type
) {
2802 pdf_page
*page
= NULL
;
2804 fz_try (state
.ctx
) {
2805 page
= pdf_load_page (state
.u
.pdf
, i
);
2806 found
= !!page
->links
;
2808 fz_catch (state
.ctx
) {
2818 xps_page
*page
= xps_load_page (state
.u
.xps
, i
);
2819 found
= !!page
->links
;
2825 ARSERT (0 && "invalid document type");
2829 ret_v
= caml_alloc_small (1, 1);
2830 Field (ret_v
, 0) = Val_int (i
);
2835 unlock ("ml_findpage_with_links");
2841 enum { dir_first
, dir_last
};
2842 enum { dir_first_visible
, dir_left
, dir_right
, dir_down
, dir_up
};
2844 CAMLprim value
ml_findlink (value ptr_v
, value dir_v
)
2846 CAMLparam2 (ptr_v
, dir_v
);
2847 CAMLlocal2 (ret_v
, pos_v
);
2849 int dirtag
, i
, slinkindex
;
2850 struct slink
*found
= NULL
,*slink
;
2851 char *s
= String_val (ptr_v
);
2853 page
= parse_pointer ("ml_findlink", s
);
2854 ret_v
= Val_int (0);
2855 if (trylock ("ml_findlink")) {
2859 ensureslinks (page
);
2861 if (Is_block (dir_v
)) {
2862 dirtag
= Tag_val (dir_v
);
2864 case dir_first_visible
:
2866 int x0
, y0
, dir
, first_index
, last_index
;
2868 pos_v
= Field (dir_v
, 0);
2869 x0
= Int_val (Field (pos_v
, 0));
2870 y0
= Int_val (Field (pos_v
, 1));
2871 dir
= Int_val (Field (pos_v
, 2));
2876 last_index
= page
->slinkcount
;
2879 first_index
= page
->slinkcount
- 1;
2883 for (i
= first_index
; i
!= last_index
; i
+= dir
) {
2884 slink
= &page
->slinks
[i
];
2885 if (slink
->bbox
.y0
>= y0
&& slink
->bbox
.x0
>= x0
) {
2894 slinkindex
= Int_val (Field (dir_v
, 0));
2895 found
= &page
->slinks
[slinkindex
];
2896 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2897 slink
= &page
->slinks
[i
];
2898 if (slink
->bbox
.x0
< found
->bbox
.x0
) {
2906 slinkindex
= Int_val (Field (dir_v
, 0));
2907 found
= &page
->slinks
[slinkindex
];
2908 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2909 slink
= &page
->slinks
[i
];
2910 if (slink
->bbox
.x0
> found
->bbox
.x0
) {
2918 slinkindex
= Int_val (Field (dir_v
, 0));
2919 found
= &page
->slinks
[slinkindex
];
2920 for (i
= slinkindex
+ 1; i
< page
->slinkcount
; ++i
) {
2921 slink
= &page
->slinks
[i
];
2922 if (slink
->bbox
.y0
>= found
->bbox
.y0
) {
2930 slinkindex
= Int_val (Field (dir_v
, 0));
2931 found
= &page
->slinks
[slinkindex
];
2932 for (i
= slinkindex
- 1; i
>= 0; --i
) {
2933 slink
= &page
->slinks
[i
];
2934 if (slink
->bbox
.y0
<= found
->bbox
.y0
) {
2943 dirtag
= Int_val (dir_v
);
2946 found
= page
->slinks
;
2951 found
= page
->slinks
+ (page
->slinkcount
- 1);
2957 ret_v
= caml_alloc_small (2, 1);
2958 Field (ret_v
, 0) = Val_int (found
- page
->slinks
);
2961 unlock ("ml_findlink");
2966 enum { uuri
, ugoto
, utext
, uunexpected
,
2967 ulaunch
, unamed
, uremote
, uremotedest
};
2973 switch (link->dest.kind) { \
2974 case FZ_LINK_GOTO: \
2978 pageno = link->dest.ld.gotor.page; \
2982 if (link->dest.ld.gotor.flags & fz_link_flag_t_valid) { \
2983 p.y = link->dest.ld.gotor.lt.y; \
2984 fz_transform_point (&p, &pdim->lctm); \
2986 tup_v = caml_alloc_tuple (2); \
2987 ret_v = caml_alloc_small (1, ugoto); \
2988 Field (tup_v, 0) = Val_int (pageno); \
2989 Field (tup_v, 1) = Val_int (p.y); \
2990 Field (ret_v, 0) = tup_v; \
2995 str_v = caml_copy_string (link->dest.ld.uri.uri); \
2996 ret_v = caml_alloc_small (1, uuri); \
2997 Field (ret_v, 0) = str_v; \
3000 case FZ_LINK_LAUNCH: \
3001 str_v = caml_copy_string (link->dest.ld.launch.file_spec); \
3002 ret_v = caml_alloc_small (1, ulaunch); \
3003 Field (ret_v, 0) = str_v; \
3006 case FZ_LINK_NAMED: \
3007 str_v = caml_copy_string (link->dest.ld.named.named); \
3008 ret_v = caml_alloc_small (1, unamed); \
3009 Field (ret_v, 0) = str_v; \
3012 case FZ_LINK_GOTOR: \
3016 str_v = caml_copy_string (link->dest.ld.gotor.file_spec); \
3017 pageno = link->dest.ld.gotor.page; \
3018 if (pageno == -1) { \
3019 gr_v = caml_copy_string (link->dest.ld.gotor.dest); \
3020 rty = uremotedest; \
3023 gr_v = Val_int (pageno); \
3026 tup_v = caml_alloc_tuple (2); \
3027 ret_v = caml_alloc_small (1, rty); \
3028 Field (tup_v, 0) = str_v; \
3029 Field (tup_v, 1) = gr_v; \
3030 Field (ret_v, 0) = tup_v; \
3038 snprintf (buf, sizeof (buf), \
3039 "unhandled link kind %d", link->dest.kind); \
3040 str_v = caml_copy_string (buf); \
3041 ret_v = caml_alloc_small (1, uunexpected); \
3042 Field (ret_v, 0) = str_v; \
3048 CAMLprim value
ml_getlink (value ptr_v
, value n_v
)
3050 CAMLparam2 (ptr_v
, n_v
);
3051 CAMLlocal4 (ret_v
, tup_v
, str_v
, gr_v
);
3054 struct pagedim
*pdim
;
3055 char *s
= String_val (ptr_v
);
3057 ret_v
= Val_int (0);
3058 if (trylock ("ml_getlink")) {
3062 page
= parse_pointer ("ml_getlink", s
);
3063 ensureslinks (page
);
3064 pdim
= &state
.pagedims
[page
->pdimno
];
3065 link
= page
->slinks
[Int_val (n_v
)].link
;
3068 unlock ("ml_getlink");
3073 CAMLprim value
ml_getlinkcount (value ptr_v
)
3077 char *s
= String_val (ptr_v
);
3079 page
= parse_pointer ("ml_getlinkcount", s
);
3080 CAMLreturn (Val_int (page
->slinkcount
));
3083 CAMLprim value
ml_getlinkrect (value ptr_v
, value n_v
)
3085 CAMLparam2 (ptr_v
, n_v
);
3088 struct slink
*slink
;
3089 char *s
= String_val (ptr_v
);
3091 page
= parse_pointer ("ml_getlinkrect", s
);
3092 ret_v
= caml_alloc_tuple (4);
3093 if (trylock ("ml_getlinkrect")) {
3094 Field (ret_v
, 0) = Val_int (0);
3095 Field (ret_v
, 1) = Val_int (0);
3096 Field (ret_v
, 2) = Val_int (0);
3097 Field (ret_v
, 3) = Val_int (0);
3100 ensureslinks (page
);
3102 slink
= &page
->slinks
[Int_val (n_v
)];
3103 Field (ret_v
, 0) = Val_int (slink
->bbox
.x0
);
3104 Field (ret_v
, 1) = Val_int (slink
->bbox
.y0
);
3105 Field (ret_v
, 2) = Val_int (slink
->bbox
.x1
);
3106 Field (ret_v
, 3) = Val_int (slink
->bbox
.y1
);
3107 unlock ("ml_getlinkrect");
3113 CAMLprim value
ml_whatsunder (value ptr_v
, value x_v
, value y_v
)
3115 CAMLparam3 (ptr_v
, x_v
, y_v
);
3116 CAMLlocal4 (ret_v
, tup_v
, str_v
, gr_v
);
3119 char *s
= String_val (ptr_v
);
3120 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3121 struct pagedim
*pdim
;
3123 ret_v
= Val_int (0);
3124 if (trylock ("ml_whatsunder")) {
3128 page
= parse_pointer ("ml_whatsunder", s
);
3129 pdim
= &state
.pagedims
[page
->pdimno
];
3130 x
+= pdim
->bounds
.x0
;
3131 y
+= pdim
->bounds
.y0
;
3132 link
= getlink (page
, x
, y
);
3138 fz_page_block
*pageb
;
3139 fz_text_block
*block
;
3142 for (pageb
= page
->text
->blocks
;
3143 pageb
< page
->text
->blocks
+ page
->text
->len
;
3146 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3147 block
= pageb
->u
.text
;
3150 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3153 for (line
= block
->lines
;
3154 line
< block
->lines
+ block
->len
;
3159 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3162 for (span
= line
->first_span
; span
; span
= span
->next
) {
3166 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3169 for (charnum
= 0; charnum
< span
->len
; ++charnum
) {
3171 fz_text_char_bbox (&bbox
, span
, charnum
);
3174 if (x
>= b
->x0
&& x
<= b
->x1
3175 && y
>= b
->y0
&& y
<= b
->y1
) {
3176 fz_text_style
*style
= span
->text
->style
;
3178 style
->font
&& style
->font
->name
3180 : "Span has no font name"
3182 FT_FaceRec
*face
= style
->font
->ft_face
;
3183 if (face
&& face
->family_name
) {
3185 char *n1
= face
->family_name
;
3186 size_t l1
= strlen (n1
);
3187 size_t l2
= strlen (n2
);
3189 if (l1
!= l2
|| memcmp (n1
, n2
, l1
)) {
3190 s
= malloc (l1
+ l2
+ 2);
3194 memcpy (s
+ l2
+ 1, n1
, l1
+ 1);
3195 str_v
= caml_copy_string (s
);
3201 str_v
= caml_copy_string (n2
);
3203 ret_v
= caml_alloc_small (1, utext
);
3204 Field (ret_v
, 0) = str_v
;
3213 unlock ("ml_whatsunder");
3219 enum { mark_page
, mark_block
, mark_line
, mark_word
};
3221 static int uninteresting (int c
)
3223 return c
== ' ' || c
== '\n' || c
== '\t' || c
== '\n' || c
== '\r'
3227 CAMLprim value
ml_clearmark (value ptr_v
)
3230 char *s
= String_val (ptr_v
);
3233 if (trylock ("ml_clearmark")) {
3237 page
= parse_pointer ("ml_clearmark", s
);
3238 page
->fmark
.span
= NULL
;
3239 page
->lmark
.span
= NULL
;
3243 unlock ("ml_clearmark");
3245 CAMLreturn (Val_unit
);
3248 CAMLprim value
ml_markunder (value ptr_v
, value x_v
, value y_v
, value mark_v
)
3250 CAMLparam4 (ptr_v
, x_v
, y_v
, mark_v
);
3255 fz_page_block
*pageb
;
3256 fz_text_block
*block
;
3257 struct pagedim
*pdim
;
3258 int mark
= Int_val (mark_v
);
3259 char *s
= String_val (ptr_v
);
3260 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3262 ret_v
= Val_bool (0);
3263 if (trylock ("ml_markunder")) {
3267 page
= parse_pointer ("ml_markunder", s
);
3268 pdim
= &state
.pagedims
[page
->pdimno
];
3272 if (mark
== mark_page
) {
3274 fz_page_block
*pb1
= NULL
, *pb2
= NULL
;
3276 for (i
= 0; i
< page
->text
->len
; ++i
) {
3277 if (page
->text
->blocks
[i
].type
== FZ_PAGE_BLOCK_TEXT
) {
3278 pb1
= &page
->text
->blocks
[i
];
3282 if (!pb1
) goto unlock
;
3284 for (i
= page
->text
->len
- 1; i
>= 0; --i
) {
3285 if (page
->text
->blocks
[i
].type
== FZ_PAGE_BLOCK_TEXT
) {
3286 pb2
= &page
->text
->blocks
[i
];
3290 if (!pb2
) goto unlock
;
3292 block
= pb1
->u
.text
;
3295 page
->fmark
.span
= block
->lines
->first_span
;
3297 block
= pb2
->u
.text
;
3298 line
= &block
->lines
[block
->len
- 1];
3299 page
->lmark
.i
= line
->last_span
->len
- 1;
3300 page
->lmark
.span
= line
->last_span
;
3301 ret_v
= Val_bool (1);
3305 x
+= pdim
->bounds
.x0
;
3306 y
+= pdim
->bounds
.y0
;
3308 for (pageb
= page
->text
->blocks
;
3309 pageb
< page
->text
->blocks
+ page
->text
->len
;
3311 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3312 block
= pageb
->u
.text
;
3315 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3318 if (mark
== mark_block
) {
3320 page
->fmark
.span
= block
->lines
->first_span
;
3322 line
= &block
->lines
[block
->len
- 1];
3323 page
->lmark
.i
= line
->last_span
->len
- 1;
3324 page
->lmark
.span
= line
->last_span
;
3325 ret_v
= Val_bool (1);
3329 for (line
= block
->lines
;
3330 line
< block
->lines
+ block
->len
;
3335 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3338 if (mark
== mark_line
) {
3340 page
->fmark
.span
= line
->first_span
;
3342 page
->lmark
.i
= line
->last_span
->len
- 1;
3343 page
->lmark
.span
= line
->last_span
;
3344 ret_v
= Val_bool (1);
3348 for (span
= line
->first_span
; span
; span
= span
->next
) {
3352 if (!(x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
))
3355 for (charnum
= 0; charnum
< span
->len
; ++charnum
) {
3357 fz_text_char_bbox (&bbox
, span
, charnum
);
3360 if (x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
) {
3362 int charnum2
, charnum3
= -1, charnum4
= -1;
3364 if (uninteresting (span
->text
[charnum
].c
)) goto unlock
;
3366 for (charnum2
= charnum
; charnum2
>= 0; --charnum2
) {
3367 if (uninteresting (span
->text
[charnum2
].c
)) {
3368 charnum3
= charnum2
+ 1;
3372 if (charnum3
== -1) charnum3
= 0;
3374 for (charnum2
= charnum
+ 1;
3375 charnum2
< span
->len
;
3377 if (uninteresting (span
->text
[charnum2
].c
)) break;
3378 charnum4
= charnum2
;
3380 if (charnum4
== -1) goto unlock
;
3382 page
->fmark
.i
= charnum3
;
3383 page
->fmark
.span
= span
;
3385 page
->lmark
.i
= charnum4
;
3386 page
->lmark
.span
= span
;
3387 ret_v
= Val_bool (1);
3395 if (!Bool_val (ret_v
)) {
3396 page
->fmark
.span
= NULL
;
3397 page
->lmark
.span
= NULL
;
3401 unlock ("ml_markunder");
3407 CAMLprim value
ml_rectofblock (value ptr_v
, value x_v
, value y_v
)
3409 CAMLparam3 (ptr_v
, x_v
, y_v
);
3410 CAMLlocal2 (ret_v
, res_v
);
3413 fz_page_block
*pageb
;
3414 struct pagedim
*pdim
;
3415 char *s
= String_val (ptr_v
);
3416 int x
= Int_val (x_v
), y
= Int_val (y_v
);
3418 ret_v
= Val_int (0);
3419 if (trylock ("ml_rectofblock")) {
3423 page
= parse_pointer ("ml_rectofblock", s
);
3424 pdim
= &state
.pagedims
[page
->pdimno
];
3425 x
+= pdim
->bounds
.x0
;
3426 y
+= pdim
->bounds
.y0
;
3430 for (pageb
= page
->text
->blocks
;
3431 pageb
< page
->text
->blocks
+ page
->text
->len
;
3433 switch (pageb
->type
) {
3434 case FZ_PAGE_BLOCK_TEXT
:
3435 b
= &pageb
->u
.text
->bbox
;
3438 case FZ_PAGE_BLOCK_IMAGE
:
3439 b
= &pageb
->u
.image
->bbox
;
3446 if (x
>= b
->x0
&& x
<= b
->x1
&& y
>= b
->y0
&& y
<= b
->y1
)
3451 res_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3452 ret_v
= caml_alloc_small (1, 1);
3453 Store_double_field (res_v
, 0, b
->x0
);
3454 Store_double_field (res_v
, 1, b
->x1
);
3455 Store_double_field (res_v
, 2, b
->y0
);
3456 Store_double_field (res_v
, 3, b
->y1
);
3457 Field (ret_v
, 0) = res_v
;
3459 unlock ("ml_rectofblock");
3465 CAMLprim value
ml_seltext (value ptr_v
, value rect_v
)
3467 CAMLparam2 (ptr_v
, rect_v
);
3470 struct pagedim
*pdim
;
3471 char *s
= String_val (ptr_v
);
3472 int i
, x0
, x1
, y0
, y1
, fi
, li
;
3474 fz_page_block
*pageb
;
3475 fz_text_block
*block
;
3476 fz_text_span
*span
, *fspan
, *lspan
;
3478 if (trylock ("ml_seltext")) {
3482 page
= parse_pointer ("ml_seltext", s
);
3485 pdim
= &state
.pagedims
[page
->pdimno
];
3486 x0
= Int_val (Field (rect_v
, 0)) + pdim
->bounds
.x0
;
3487 y0
= Int_val (Field (rect_v
, 1)) + pdim
->bounds
.y0
;
3488 x1
= Int_val (Field (rect_v
, 2)) + pdim
->bounds
.x0
;
3489 y1
= Int_val (Field (rect_v
, 3)) + pdim
->bounds
.y0
;
3500 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
3501 glColor3ub (128, 128, 128);
3502 recti (x0
, y0
, x1
, y1
);
3503 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
3507 fspan
= page
->fmark
.span
;
3510 lspan
= page
->lmark
.span
;
3512 for (pageb
= page
->text
->blocks
;
3513 pageb
< page
->text
->blocks
+ page
->text
->len
;
3515 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3516 block
= pageb
->u
.text
;
3517 for (line
= block
->lines
;
3518 line
< block
->lines
+ block
->len
;
3522 for (span
= line
->first_span
; span
; span
= span
->next
) {
3523 for (i
= 0; i
< span
->len
; ++i
) {
3526 fz_text_char_bbox (&b
, span
, i
);
3528 if (x0
>= b
.x0
&& x0
<= b
.x1
3529 && y0
>= b
.y0
&& y0
<= b
.y1
) {
3534 if (x1
>= b
.x0
&& x1
<= b
.x1
3535 && y1
>= b
.y0
&& y1
<= b
.y1
) {
3540 if (0 && selected
) {
3541 glPolygonMode (GL_FRONT_AND_BACK
, GL_LINE
);
3542 glColor3ub (128, 128, 128);
3543 recti (b
.x0
, b
.y0
, b
.x1
, b
.y1
);
3544 glPolygonMode (GL_FRONT_AND_BACK
, GL_FILL
);
3550 if (x1
< x0
&& fspan
== lspan
) {
3562 page
->fmark
.span
= fspan
;
3565 page
->lmark
.span
= lspan
;
3567 unlock ("ml_seltext");
3570 CAMLreturn (Val_unit
);
3573 static int UNUSED_ATTR
pipespan (FILE *f
, fz_text_span
*span
, int a
, int b
)
3578 for (i
= a
; i
<= b
; ++i
) {
3579 len
= fz_runetochar (buf
, span
->text
[i
].c
);
3580 ret
= fwrite (buf
, len
, 1, f
);
3583 fprintf (stderr
, "failed to write %d bytes ret=%d: %s\n",
3584 len
, ret
, strerror (errno
));
3592 value
ml_popen (value UNUSED_ATTR u1
, value UNUSED_ATTR u2
)
3594 caml_failwith ("ml_popen not implemented under Cygwin");
3597 CAMLprim value
ml_popen (value command_v
, value fds_v
)
3599 CAMLparam2 (command_v
, fds_v
);
3600 CAMLlocal2 (l_v
, tup_v
);
3603 value earg_v
= Nothing
;
3604 posix_spawnattr_t attr
;
3605 posix_spawn_file_actions_t fa
;
3606 char *argv
[] = { "/bin/sh", "-c", String_val (command_v
), NULL
};
3608 if ((ret
= posix_spawn_file_actions_init (&fa
)) != 0) {
3609 unix_error (ret
, "posix_spawn_file_actions_init", Nothing
);
3612 if ((ret
= posix_spawnattr_init (&attr
)) != 0) {
3613 msg
= "posix_spawnattr_init";
3617 #ifdef POSIX_SPAWN_USEVFORK
3618 if ((ret
= posix_spawnattr_setflags (&attr
, POSIX_SPAWN_USEVFORK
)) != 0) {
3619 msg
= "posix_spawnattr_setflags POSIX_SPAWN_USEVFORK";
3624 for (l_v
= fds_v
; l_v
!= Val_int (0); l_v
= Field (l_v
, 1)) {
3627 tup_v
= Field (l_v
, 0);
3628 fd1
= Int_val (Field (tup_v
, 0));
3629 fd2
= Int_val (Field (tup_v
, 1));
3631 if ((ret
= posix_spawn_file_actions_addclose (&fa
, fd1
)) != 0) {
3632 msg
= "posix_spawn_file_actions_addclose";
3638 if ((ret
= posix_spawn_file_actions_adddup2 (&fa
, fd1
, fd2
)) != 0) {
3639 msg
= "posix_spawn_file_actions_adddup2";
3646 if ((ret
= posix_spawn (NULL
, "/bin/sh", &fa
, &attr
, argv
, environ
))) {
3647 msg
= "posix_spawn";
3652 if ((ret
= posix_spawnattr_destroy (&attr
)) != 0) {
3653 fprintf (stderr
, "posix_spawnattr_destroy: %s\n", strerror (ret
));
3657 if ((ret
= posix_spawn_file_actions_destroy (&fa
)) != 0) {
3658 fprintf (stderr
, "posix_spawn_file_actions_destroy: %s\n",
3663 unix_error (ret
, msg
, earg_v
);
3665 CAMLreturn (Val_unit
);
3669 CAMLprim value
ml_hassel (value ptr_v
)
3674 char *s
= String_val (ptr_v
);
3676 ret_v
= Val_bool (0);
3677 if (trylock ("ml_hassel")) {
3681 page
= parse_pointer ("ml_hassel", s
);
3682 ret_v
= Val_bool (page
->fmark
.span
&& page
->lmark
.span
);
3683 unlock ("ml_hassel");
3688 CAMLprim value
ml_copysel (value fd_v
, value ptr_v
)
3690 CAMLparam2 (fd_v
, ptr_v
);
3695 fz_page_block
*pageb
;
3696 fz_text_block
*block
;
3697 int fd
= Int_val (fd_v
);
3698 char *s
= String_val (ptr_v
);
3700 if (trylock ("ml_copysel")) {
3704 page
= parse_pointer ("ml_copysel", s
);
3706 if (!page
->fmark
.span
|| !page
->lmark
.span
) {
3707 fprintf (stderr
, "nothing to copy on page %d\n", page
->pageno
);
3711 f
= fdopen (fd
, "w");
3713 fprintf (stderr
, "failed to fdopen sel pipe (from fd %d): %s\n",
3714 fd
, strerror (errno
));
3718 for (pageb
= page
->text
->blocks
;
3719 pageb
< page
->text
->blocks
+ page
->text
->len
;
3721 if (pageb
->type
!= FZ_PAGE_BLOCK_TEXT
) continue;
3722 block
= pageb
->u
.text
;
3723 for (line
= block
->lines
;
3724 line
< block
->lines
+ block
->len
;
3728 for (span
= line
->first_span
; span
; span
= span
->next
) {
3731 seen
|= span
== page
->fmark
.span
|| span
== page
->lmark
.span
;
3732 a
= span
== page
->fmark
.span
? page
->fmark
.i
: 0;
3733 b
= span
== page
->lmark
.span
? page
->lmark
.i
: span
->len
- 1;
3736 if (pipespan (f
, span
, a
, b
)) {
3739 if (span
== page
->lmark
.span
) {
3742 if (span
== line
->last_span
) {
3743 if (putc ('\n', f
) == EOF
) {
3745 "failed break line on sel pipe: %s\n",
3756 int ret
= fclose (f
);
3759 if (errno
!= ECHILD
) {
3760 fprintf (stderr
, "failed to close sel pipe: %s\n",
3766 unlock ("ml_copysel");
3771 fprintf (stderr
, "failed to close sel pipe: %s\n",
3775 CAMLreturn (Val_unit
);
3778 CAMLprim value
ml_getpdimrect (value pagedimno_v
)
3780 CAMLparam1 (pagedimno_v
);
3782 int pagedimno
= Int_val (pagedimno_v
);
3785 ret_v
= caml_alloc_small (4 * Double_wosize
, Double_array_tag
);
3786 if (trylock ("ml_getpdimrect")) {
3787 box
= fz_empty_rect
;
3790 box
= state
.pagedims
[pagedimno
].mediabox
;
3791 unlock ("ml_getpdimrect");
3794 Store_double_field (ret_v
, 0, box
.x0
);
3795 Store_double_field (ret_v
, 1, box
.x1
);
3796 Store_double_field (ret_v
, 2, box
.y0
);
3797 Store_double_field (ret_v
, 3, box
.y1
);
3802 CAMLprim value
ml_zoom_for_height (value winw_v
, value winh_v
,
3803 value dw_v
, value cols_v
)
3805 CAMLparam3 (winw_v
, winh_v
, dw_v
);
3811 double winw
= Int_val (winw_v
);
3812 double winh
= Int_val (winh_v
);
3813 double dw
= Int_val (dw_v
);
3814 double cols
= Int_val (cols_v
);
3815 double pw
= 1.0, ph
= 1.0;
3817 if (trylock ("ml_zoom_for_height")) {
3821 for (i
= 0, p
= state
.pagedims
; i
< state
.pagedimcount
; ++i
, ++p
) {
3822 double w
= p
->pagebox
.x1
/ cols
;
3823 double h
= p
->pagebox
.y1
;
3827 if (state
.fitmodel
!= FitProportional
) pw
= w
;
3829 if ((state
.fitmodel
== FitProportional
) && w
> pw
) pw
= w
;
3832 zoom
= (((winh
/ ph
) * pw
) + dw
) / winw
;
3833 unlock ("ml_zoom_for_height");
3835 ret_v
= caml_copy_double (zoom
);
3839 CAMLprim value
ml_draw_string (value pt_v
, value x_v
, value y_v
, value string_v
)
3841 CAMLparam4 (pt_v
, x_v
, y_v
, string_v
);
3843 int pt
= Int_val(pt_v
);
3844 int x
= Int_val (x_v
);
3845 int y
= Int_val (y_v
);
3848 w
= draw_string (state
.face
, pt
, x
, y
, String_val (string_v
));
3849 ret_v
= caml_copy_double (w
);
3853 CAMLprim value
ml_measure_string (value pt_v
, value string_v
)
3855 CAMLparam2 (pt_v
, string_v
);
3857 int pt
= Int_val (pt_v
);
3860 w
= measure_string (state
.face
, pt
, String_val (string_v
));
3861 ret_v
= caml_copy_double (w
);
3865 CAMLprim value
ml_getpagebox (value opaque_v
)
3867 CAMLparam1 (opaque_v
);
3873 char *s
= String_val (opaque_v
);
3874 struct page
*page
= parse_pointer ("ml_getpagebox", s
);
3876 ret_v
= caml_alloc_tuple (4);
3877 dev
= fz_new_bbox_device (state
.ctx
, &rect
);
3878 dev
->hints
|= FZ_IGNORE_SHADE
;
3880 switch (page
->type
) {
3882 ctm
= pagectm (page
);
3883 pdf_run_page (state
.u
.pdf
, page
->u
.pdfpage
, dev
, &ctm
, NULL
);
3887 ctm
= pagectm (page
);
3888 xps_run_page (state
.u
.xps
, page
->u
.xpspage
, dev
, &ctm
, NULL
);
3892 rect
= fz_infinite_rect
;
3896 fz_free_device (dev
);
3897 fz_round_rect (&bbox
, &rect
);
3898 Field (ret_v
, 0) = Val_int (bbox
.x0
);
3899 Field (ret_v
, 1) = Val_int (bbox
.y0
);
3900 Field (ret_v
, 2) = Val_int (bbox
.x1
);
3901 Field (ret_v
, 3) = Val_int (bbox
.y1
);
3906 CAMLprim value
ml_setaalevel (value level_v
)
3908 CAMLparam1 (level_v
);
3910 state
.aalevel
= Int_val (level_v
);
3911 CAMLreturn (Val_unit
);
3915 /* EGL initialization mostly taken from eglxgears from mesa-demos:
3916 http://cgit.freedesktop.org/mesa/demos/tree/src/egl/opengl/xeglgears.c */
3917 #include <EGL/egl.h>
3924 EGLNativeWindowType wid
;
3925 XVisualInfo
*visual
;
3928 static void failwithfmt (const char *fmt
, ...)
3930 /* we are actually leaking memory here, so if someday failures
3931 * begin to be tolerated things will go south */
3937 f
= open_memstream (&ptr
, &size
);
3939 vfprintf (f
, fmt
, ap
);
3941 caml_failwith (ptr
);
3944 CAMLprim value
ml_glx1 (value unit_v
)
3946 CAMLparam1 (unit_v
);
3951 EGLint attribs
[] = {
3952 EGL_SURFACE_TYPE
, EGL_WINDOW_BIT
,
3954 EGL_RENDERABLE_TYPE
, EGL_OPENGL_BIT
,
3958 if (!eglBindAPI(EGL_OPENGL_API
)) {
3959 failwithfmt ("eglBindAPI %#x", eglGetError ());
3962 egl
.dpy
= eglGetDisplay (EGL_DEFAULT_DISPLAY
);
3963 if (egl
.dpy
== EGL_NO_DISPLAY
) {
3964 failwithfmt ("eglGetDisplay %#x", eglGetError ());
3967 if (!eglInitialize (egl
.dpy
, &major
, &minor
)) {
3968 failwithfmt ("eglInitialize %#x", eglGetError ());
3971 if (!eglChooseConfig (egl
.dpy
, attribs
,
3972 &egl
.conf
, 1, &num_conf
) ||
3974 eglTerminate (egl
.dpy
);
3976 failwithfmt ("eglChooseConfig %#x", eglGetError ());
3979 if (!eglGetConfigAttrib(egl
.dpy
, egl
.conf
,
3980 EGL_NATIVE_VISUAL_ID
, &visualid
)) {
3981 eglTerminate (egl
.dpy
);
3983 failwithfmt ("eglGetConfigAttrib %#x", eglGetError ());
3986 eglTerminate (egl
.dpy
);
3987 failwithfmt ("eglGetConfigAttrib %#x", eglGetError ());
3990 CAMLreturn (Val_int (visualid
));
3993 CAMLprim value
ml_glx2 (value win_v
)
3996 int wid
= Int_val (win_v
);
3998 egl
.ctx
= eglCreateContext (egl
.dpy
, egl
.conf
,
3999 EGL_NO_CONTEXT
, NULL
);
4000 if (egl
.ctx
== EGL_NO_CONTEXT
) {
4001 eglTerminate (egl
.dpy
);
4003 failwithfmt ("eglCreateContext %#x", eglGetError ());
4006 egl
.win
= eglCreateWindowSurface(egl
.dpy
, egl
.conf
,
4008 if (egl
.win
== EGL_NO_SURFACE
) {
4009 eglTerminate (egl
.dpy
);
4011 failwithfmt ("eglCreateWindowSurface %#x", eglGetError ());
4014 if (!eglMakeCurrent (egl
.dpy
, egl
.win
, egl
.win
, egl
.ctx
)) {
4015 eglDestroySurface (egl
.dpy
, egl
.win
);
4016 eglTerminate (egl
.dpy
);
4019 failwithfmt ("eglMakeCurrent %#x", eglGetError ());
4022 CAMLreturn (Val_unit
);
4025 CAMLprim value
ml_swapb (value unit_v
)
4027 CAMLparam1 (unit_v
);
4028 eglSwapBuffers (egl
.dpy
, egl
.win
);
4029 CAMLreturn (Val_unit
);
4032 CAMLprim value
ml_glxsync (value unit_v
)
4034 CAMLparam1 (unit_v
);
4035 eglWaitNative (EGL_CORE_NATIVE_ENGINE
);
4037 CAMLreturn (Val_unit
);
4041 #include <X11/Xlib.h>
4047 XVisualInfo
*visual
;
4048 GLXDrawable drawable
;
4051 CAMLprim value
ml_glx1 (value unit_v
)
4053 CAMLparam1 (unit_v
);
4055 int attributes
[] = { GLX_RGBA
, GLX_DOUBLEBUFFER
, None
};
4057 glx
.dpy
= XOpenDisplay (NULL
);
4059 caml_failwith ("XOpenDisplay");
4062 screen
= DefaultScreen (glx
.dpy
);
4063 glx
.visual
= glXChooseVisual (glx
.dpy
, screen
, attributes
);
4065 XCloseDisplay (glx
.dpy
);
4067 caml_failwith ("glXChooseVisual");
4070 CAMLreturn (Val_int (glx
.visual
->visualid
));
4073 CAMLprim value
ml_glx2 (value win_v
)
4076 int wid
= Int_val (win_v
);
4078 glx
.ctx
= glXCreateContext (glx
.dpy
, glx
.visual
, NULL
, True
);
4080 XCloseDisplay (glx
.dpy
);
4082 caml_failwith ("glXCreateContext");
4085 if (!glXMakeCurrent (glx
.dpy
, wid
, glx
.ctx
)) {
4086 glXDestroyContext (glx
.dpy
, glx
.ctx
);
4087 XCloseDisplay (glx
.dpy
);
4090 caml_failwith ("glXMakeCurrent");
4093 CAMLreturn (Val_unit
);
4096 CAMLprim value
ml_swapb (value unit_v
)
4098 CAMLparam1 (unit_v
);
4099 glXSwapBuffers (glx
.dpy
, glx
.drawable
);
4100 CAMLreturn (Val_unit
);
4103 CAMLprim value
ml_glxsync (value unit_v
)
4105 CAMLparam1 (unit_v
);
4106 if (glx
.dpy
&& glx
.ctx
) {
4110 CAMLreturn (Val_unit
);
4113 #include "keysym2ucs.c"
4115 CAMLprim value
ml_keysymtoutf8 (value keysym_v
)
4117 CAMLparam1 (keysym_v
);
4119 KeySym keysym
= Int_val (keysym_v
);
4124 rune
= keysym2ucs (keysym
);
4125 len
= fz_runetochar (buf
, rune
);
4127 str_v
= caml_copy_string (buf
);
4131 enum { piunknown
, pilinux
, piosx
, pisun
, pifreebsd
,
4132 pidragonflybsd
, piopenbsd
, pinetbsd
, picygwin
};
4134 CAMLprim value
ml_platform (value unit_v
)
4136 CAMLparam1 (unit_v
);
4137 int platid
= piunknown
;
4139 #if defined __linux__
4141 #elif defined __CYGWIN__
4143 #elif defined __DragonFly__
4144 platid
= pidragonflybsd
;
4145 #elif defined __FreeBSD__
4147 #elif defined __OpenBSD__
4149 #elif defined __NetBSD__
4151 #elif defined __sun__
4153 #elif defined __APPLE__
4156 CAMLreturn (Val_int (platid
));
4159 CAMLprim value
ml_cloexec (value fd_v
)
4162 int fd
= Int_val (fd_v
);
4164 if (fcntl (fd
, F_SETFD
, FD_CLOEXEC
, 1)) {
4165 uerror ("fcntl", Nothing
);
4167 CAMLreturn (Val_unit
);
4170 CAMLprim value
ml_getpbo (value w_v
, value h_v
, value cs_v
)
4172 CAMLparam2 (w_v
, h_v
);
4175 int w
= Int_val (w_v
);
4176 int h
= Int_val (h_v
);
4177 int cs
= Int_val (cs_v
);
4179 if (state
.pbo_usable
) {
4180 pbo
= calloc (sizeof (*pbo
), 1);
4182 err (1, "calloc pbo");
4194 errx (1, "ml_getpbo: invalid colorspace %d", cs
);
4197 state
.glGenBuffersARB (1, &pbo
->id
);
4198 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->id
);
4199 state
.glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB
, pbo
->size
,
4200 NULL
, GL_STREAM_DRAW
);
4201 pbo
->ptr
= state
.glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
,
4203 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
4205 fprintf (stderr
, "glMapBufferARB failed: %#x\n", glGetError ());
4206 state
.glDeleteBuffersARB (1, &pbo
->id
);
4208 ret_v
= caml_copy_string ("0");
4214 res
= snprintf (NULL
, 0, "%" FMT_ptr
, pbo
);
4216 err (1, "snprintf %" FMT_ptr
" failed", pbo
);
4220 err (1, "malloc %d bytes failed", res
+1);
4222 res
= sprintf (s
, "%" FMT_ptr
, pbo
);
4224 err (1, "sprintf %" FMT_ptr
" failed", pbo
);
4226 ret_v
= caml_copy_string (s
);
4231 ret_v
= caml_copy_string ("0");
4236 CAMLprim value
ml_freepbo (value s_v
)
4239 char *s
= String_val (s_v
);
4240 struct tile
*tile
= parse_pointer ("ml_freepbo", s
);
4243 state
.glDeleteBuffersARB (1, &tile
->pbo
->id
);
4245 tile
->pbo
->ptr
= NULL
;
4246 tile
->pbo
->size
= -1;
4248 CAMLreturn (Val_unit
);
4251 CAMLprim value
ml_unmappbo (value s_v
)
4254 char *s
= String_val (s_v
);
4255 struct tile
*tile
= parse_pointer ("ml_unmappbo", s
);
4258 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, tile
->pbo
->id
);
4259 if (state
.glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
) == GL_FALSE
) {
4260 errx (1, "glUnmapBufferARB failed: %#x\n", glGetError ());
4262 tile
->pbo
->ptr
= NULL
;
4263 state
.glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB
, 0);
4265 CAMLreturn (Val_unit
);
4268 static void setuppbo (void)
4271 #define GGPA(n) (*(void (**) ()) &state.n = eglGetProcAddress (#n))
4273 #define GGPA(n) (*(void (**) ()) &state.n = glXGetProcAddress ((GLubyte *) #n))
4275 state
.pbo_usable
= GGPA (glBindBufferARB
)
4276 && GGPA (glUnmapBufferARB
)
4277 && GGPA (glMapBufferARB
)
4278 && GGPA (glBufferDataARB
)
4279 && GGPA (glGenBuffersARB
)
4280 && GGPA (glDeleteBuffersARB
);
4284 CAMLprim value
ml_pbo_usable (value unit_v
)
4286 CAMLparam1 (unit_v
);
4287 CAMLreturn (Val_bool (state
.pbo_usable
));
4290 CAMLprim value
ml_unproject (value ptr_v
, value x_v
, value y_v
)
4292 CAMLparam3 (ptr_v
, x_v
, y_v
);
4293 CAMLlocal2 (ret_v
, tup_v
);
4295 char *s
= String_val (ptr_v
);
4296 int x
= Int_val (x_v
), y
= Int_val (y_v
);
4297 struct pagedim
*pdim
;
4301 page
= parse_pointer ("ml_unproject", s
);
4302 pdim
= &state
.pagedims
[page
->pdimno
];
4304 ret_v
= Val_int (0);
4305 if (trylock ("ml_unproject")) {
4309 switch (page
->type
) {
4311 trimctm (page
->u
.pdfpage
, page
->pdimno
);
4317 p
.x
= x
+ pdim
->bounds
.x0
;
4318 p
.y
= y
+ pdim
->bounds
.y0
;
4320 fz_concat (&ctm
, &pdim
->tctm
, &pdim
->ctm
);
4321 fz_invert_matrix (&ctm
, &ctm
);
4322 fz_transform_point (&p
, &ctm
);
4324 tup_v
= caml_alloc_tuple (2);
4325 ret_v
= caml_alloc_small (1, 1);
4326 Field (tup_v
, 0) = Val_int (p
.x
);
4327 Field (tup_v
, 1) = Val_int (p
.y
);
4328 Field (ret_v
, 0) = tup_v
;
4330 unlock ("ml_unproject");
4335 static void makestippletex (void)
4337 const char pixels
[] = "\xff\xff\0\0";
4338 glGenTextures (1, &state
.stid
);
4339 glBindTexture (GL_TEXTURE_1D
, state
.stid
);
4340 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MIN_FILTER
, GL_LINEAR
);
4341 glTexParameteri (GL_TEXTURE_1D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
4354 CAMLprim value
ml_fz_version (value unit_v
)
4356 return caml_copy_string (FZ_VERSION
);
4359 #ifdef USE_FONTCONFIG
4365 static fz_font
*fc_load_system_font_func (fz_context
*ctx
,
4369 int needs_exact_metrics
)
4376 FcPattern
*pat
, *pat1
;
4378 lprintf ("looking up %s bold:%d italic:%d needs_exact_metrics:%d\n",
4379 name
, bold
, italic
, needs_exact_metrics
);
4382 fc
.config
= FcInitLoadConfigAndFonts ();
4384 lprintf ("FcInitLoadConfigAndFonts failed\n");
4388 if (!fc
.config
) return NULL
;
4390 size
= strlen (name
);
4391 if (bold
) size
+= sizeof (":bold") - 1;
4392 if (italic
) size
+= sizeof (":italic") - 1;
4395 buf
= malloc (size
);
4397 err (1, "malloc %zu failed", size
);
4401 if (bold
&& italic
) {
4402 strcat (buf
, ":bold:italic");
4405 if (bold
) strcat (buf
, ":bold");
4406 if (italic
) strcat (buf
, ":italic");
4408 for (i
= 0; i
< size
; ++i
) {
4409 if (buf
[i
] == ',' || buf
[i
] == '-') buf
[i
] = ':';
4412 lprintf ("fcbuf=%s\n", buf
);
4413 pat
= FcNameParse ((FcChar8
*) buf
);
4415 printd ("emsg FcNameParse failed\n");
4420 if (!FcConfigSubstitute (fc
.config
, pat
, FcMatchPattern
)) {
4421 printd ("emsg FcConfigSubstitute failed\n");
4425 FcDefaultSubstitute (pat
);
4427 pat1
= FcFontMatch (fc
.config
, pat
, &result
);
4429 printd ("emsg FcFontMatch failed\n");
4430 FcPatternDestroy (pat
);
4435 if (FcPatternGetString (pat1
, FC_FILE
, 0, &path
) != FcResultMatch
) {
4436 printd ("emsg FcPatternGetString failed\n");
4437 FcPatternDestroy (pat
);
4438 FcPatternDestroy (pat1
);
4444 printd ("emsg name=%s path=%s\n", name
, path
);
4446 font
= fz_new_font_from_file (ctx
, name
, (char *) path
, 0, 0);
4447 FcPatternDestroy (pat
);
4448 FcPatternDestroy (pat1
);
4454 CAMLprim value
ml_init (value pipe_v
, value params_v
)
4456 CAMLparam2 (pipe_v
, params_v
);
4457 CAMLlocal2 (trim_v
, fuzz_v
);
4464 struct sigaction sa
;
4466 state
.cr
= Int_val (Field (pipe_v
, 0));
4467 state
.cw
= Int_val (Field (pipe_v
, 1));
4468 state
.rotate
= Int_val (Field (params_v
, 0));
4469 state
.fitmodel
= Int_val (Field (params_v
, 1));
4470 trim_v
= Field (params_v
, 2);
4471 texcount
= Int_val (Field (params_v
, 3));
4472 state
.sliceheight
= Int_val (Field (params_v
, 4));
4473 mustoresize
= Int_val (Field (params_v
, 5));
4474 colorspace
= Int_val (Field (params_v
, 6));
4475 fontpath
= String_val (Field (params_v
, 7));
4477 state
.trimcachepath
= strdup (String_val (Field (params_v
, 8)));
4478 if (!state
.trimcachepath
) {
4479 fprintf (stderr
, "failed to strdup trimcachepath: %s\n",
4482 haspboext
= Bool_val (Field (params_v
, 9));
4484 state
.ctx
= fz_new_context (NULL
, NULL
, mustoresize
);
4486 #ifdef USE_FONTCONFIG
4487 fz_install_load_system_font_funcs (
4488 state
.ctx
, fc_load_system_font_func
, NULL
4492 state
.trimmargins
= Bool_val (Field (trim_v
, 0));
4493 fuzz_v
= Field (trim_v
, 1);
4494 state
.trimfuzz
.x0
= Int_val (Field (fuzz_v
, 0));
4495 state
.trimfuzz
.y0
= Int_val (Field (fuzz_v
, 1));
4496 state
.trimfuzz
.x1
= Int_val (Field (fuzz_v
, 2));
4497 state
.trimfuzz
.y1
= Int_val (Field (fuzz_v
, 3));
4499 set_tex_params (colorspace
);
4502 #ifndef USE_FONTCONFIG
4503 state
.face
= load_font (fontpath
);
4507 char *buf
= fontpath
;
4508 FcPattern
*pat
, *pat1
;
4511 fc
.config
= FcInitLoadConfigAndFonts ();
4513 errx (1, "FcInitLoadConfigAndFonts failed");
4516 pat
= FcNameParse ((FcChar8
*) buf
);
4518 errx (1, "FcNameParse failed");
4521 if (!FcConfigSubstitute (fc
.config
, pat
, FcMatchPattern
)) {
4522 errx (1, "FcConfigSubstitute failed");
4524 FcDefaultSubstitute (pat
);
4526 pat1
= FcFontMatch (fc
.config
, pat
, &result
);
4528 errx (1, "FcFontMatch failed");
4531 if (FcPatternGetString (pat1
, FC_FILE
, 0, &path
) != FcResultMatch
) {
4532 errx (1, "FcPatternGetString failed");
4535 state
.face
= load_font ((char *) path
);
4536 FcPatternDestroy (pat
);
4537 FcPatternDestroy (pat1
);
4542 void *base
= pdf_lookup_substitute_font (0, 0, 0, 0, &len
);
4544 state
.face
= load_builtin_font (base
, len
);
4546 if (!state
.face
) _exit (1);
4548 realloctexts (texcount
);
4557 sa
.sa_handler
= SIG_IGN
;
4558 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
;
4560 sa
.sa_handler
= SIG_DFL
;
4561 sa
.sa_flags
= SA_RESTART
| SA_NOCLDSTOP
| SA_NOCLDWAIT
;
4563 if (sigemptyset (&sa
.sa_mask
)) {
4564 err (1, "sigemptyset");
4566 if (sigaction (SIGCHLD
, &sa
, NULL
)) {
4567 err (1, "sigaction");
4570 ret
= pthread_create (&state
.thread
, NULL
, mainloop
, NULL
);
4572 errx (1, "pthread_create: %s", strerror (ret
));
4575 CAMLreturn (Val_unit
);