void pdfapp_close(pdfapp_t *app)
{
if (app->cache)
fz_free_glyph_cache(app->cache);
app->cache = NULL;
if (app->image)
fz_drop_pixmap(app->image);
app->image = NULL;
if (app->outline)
pdf_free_outline(app->outline);
app->outline = NULL;
if (app->xref)
{
if (app->xref->store)
pdf_free_store(app->xref->store);
app->xref->store = NULL;
pdf_free_xref(app->xref);
app->xref = NULL;
}
if (app->xps)
{
xps_free_context(app->xps);
app->xps = NULL;
}
fz_flush_warnings();
}
static void _pdf_doc_clear(struct _pdf_doc *self)
{
int i, c = mume_docdoc_count_pages(self);
if (self->pages) {
for (i = 0; i < c; ++i) {
if (self->pages[i])
pdf_free_page(self->pages[i]);
}
free(self->pages);
}
if (self->disps) {
for (i = 0; i < c; ++i) {
if (self->disps[i])
fz_free_display_list(self->disps[i]);
}
free(self->disps);
}
if (self->glyph_cache)
fz_free_glyph_cache(self->glyph_cache);
if (self->xref)
pdf_free_xref(self->xref);
free(self->media_boxes);
free(self->page_rotates);
_pdf_doc_reset(self);
}
void die(fz_error error)
{
fz_error_handle(ctx, error, "aborting");
if (xref)
pdf_free_xref(xref);
exit(1);
}
Pdf::~Pdf()
{
pdf_free_xref(xref);
--references;
if (references == 0) {
fz_free_glyph_cache(ctx, cache);
cache = 0;
fz_free_context(ctx);
ctx = 0;
}
}
bool Pdf::open(const QString& path)
{
char* name = path.toAscii().data();
fz_try(ctx) {
xref = pdf_open_xref(ctx, name, 0);
pdf_load_page_tree(xref);
}
fz_catch(ctx) {
pdf_free_xref(xref);
xref = 0;
}
return true;
}
int main(int argc, char **argv)
{
fz_error error;
char *infile;
char *password = "";
int c, o;
while ((c = fz_getopt(argc, argv, "p:r")) != -1)
{
switch (c)
{
case 'p': password = fz_optarg; break;
case 'r': dorgb++; break;
default: usage(); break;
}
}
if (fz_optind == argc)
usage();
infile = argv[fz_optind++];
ctx = fz_context_init(&fz_alloc_default);
if (ctx == NULL)
die(fz_error_note(ctx, 1, "failed to initialise context"));
error = pdf_open_xref(ctx, &xref, infile, password);
if (error)
die(fz_error_note(ctx, error, "cannot open input file '%s'", infile));
if (fz_optind == argc)
{
for (o = 0; o < xref->len; o++)
showobject(o);
}
else
{
while (fz_optind < argc)
{
showobject(atoi(argv[fz_optind]));
fz_optind++;
}
}
pdf_free_xref(xref);
fz_flush_warnings(ctx);
fz_context_fin(ctx);
return 0;
}
void pdfapp_close(pdfapp_t *app)
{
#if 0
if (app->page)
pdf_droppage(app->page);
app->page = nil;
if (app->image)
fz_droppixmap(app->image);
app->image = nil;
/* if (app->outline)
pdf_dropoutline(app->outline);
app->outline = nil;*/
if (app->xref->store)
pdf_dropstore(app->xref->store);
app->xref->store = nil;
pdf_closexref(app->xref);
app->xref = nil;
#else
if (app->cache)
fz_free_glyph_cache(app->cache);
app->cache = NULL;
if (app->image)
fz_drop_pixmap(app->image);
app->image = NULL;
if (app->outline)
pdf_free_outline(app->outline);
app->outline = NULL;
if (app->xref)
{
if (app->xref->store)
pdf_free_store(app->xref->store);
app->xref->store = NULL;
pdf_free_xref(app->xref);
app->xref = NULL;
}
fz_flush_warnings();
#endif
}
int main(int argc, char **argv)
{
fz_error error;
char *infile;
char *outfile = "out.pdf";
char *password = "";
int c, num;
int subset;
while ((c = fz_getopt(argc, argv, "adgp:")) != -1)
{
switch (c)
{
case 'p': password = fz_optarg; break;
case 'g': dogarbage ++; break;
case 'd': doexpand ++; break;
case 'a': doascii ++; break;
default: usage(); break;
}
}
if (argc - fz_optind < 1)
usage();
infile = argv[fz_optind++];
if (argc - fz_optind > 0 &&
(strstr(argv[fz_optind], ".pdf") || strstr(argv[fz_optind], ".PDF")))
{
outfile = argv[fz_optind++];
}
subset = 0;
if (argc - fz_optind > 0)
subset = 1;
ctx = fz_context_init(&fz_alloc_default);
if (ctx == NULL)
die(fz_error_note(ctx, 1, "failed to initialise context"));
error = pdf_open_xref(ctx, &xref, infile, password);
if (error)
die(fz_error_note(ctx, error, "cannot open input file '%s'", infile));
out = fopen(outfile, "wb");
if (!out)
die(fz_error_make(ctx, "cannot open output file '%s'", outfile));
fprintf(out, "%%PDF-%d.%d\n", xref->version / 10, xref->version % 10);
fprintf(out, "%%\316\274\341\277\246\n\n");
uselist = fz_calloc(ctx, xref->len + 1, sizeof(char));
ofslist = fz_calloc(ctx, xref->len + 1, sizeof(int));
genlist = fz_calloc(ctx, xref->len + 1, sizeof(int));
renumbermap = fz_calloc(ctx, xref->len + 1, sizeof(int));
for (num = 0; num < xref->len; num++)
{
uselist[num] = 0;
ofslist[num] = 0;
genlist[num] = 0;
renumbermap[num] = num;
}
/* Make sure any objects hidden in compressed streams have been loaded */
preloadobjstms();
/* Only retain the specified subset of the pages */
if (subset)
retainpages(argc, argv);
/* Sweep & mark objects from the trailer */
if (dogarbage >= 1)
sweepobj(xref->trailer);
/* Coalesce and renumber duplicate objects */
if (dogarbage >= 3)
removeduplicateobjs();
/* Compact xref by renumbering and removing unused objects */
if (dogarbage >= 2)
compactxref();
/* Make renumbering affect all indirect references and update xref */
/* Do not renumber objects if encryption is in use, as the object
* numbers are baked into the streams/strings, and we can't currently
* cope with moving them. See bug 692627. */
if (dogarbage >= 2 && xref->crypt == NULL)
renumberobjs();
writepdf();
if (fclose(out))
die(fz_error_make(ctx, "cannot close output file '%s'", outfile));
fz_free(xref->ctx, uselist);
fz_free(xref->ctx, ofslist);
fz_free(xref->ctx, genlist);
fz_free(xref->ctx, renumbermap);
pdf_free_xref(xref);
fz_flush_warnings(ctx);
fz_context_fin(ctx);
return 0;
}
fz_error
pdf_open_xref_with_stream(pdf_xref **xrefp, fz_stream *file, char *password)
{
pdf_xref *xref;
fz_error error;
fz_obj *encrypt, *id;
fz_obj *dict, *obj;
int i, repaired = 0;
/* install pdf specific callback */
fz_resolve_indirect = pdf_resolve_indirect;
xref = fz_malloc(sizeof(pdf_xref));
memset(xref, 0, sizeof(pdf_xref));
xref->file = fz_keep_stream(file);
error = pdf_load_xref(xref, xref->scratch, sizeof xref->scratch);
if (error)
{
fz_catch(error, "trying to repair");
if (xref->table)
{
fz_free(xref->table);
xref->table = NULL;
xref->len = 0;
}
if (xref->trailer)
{
fz_drop_obj(xref->trailer);
xref->trailer = NULL;
}
error = pdf_repair_xref(xref, xref->scratch, sizeof xref->scratch);
if (error)
{
pdf_free_xref(xref);
return fz_rethrow(error, "cannot repair document");
}
repaired = 1;
}
encrypt = fz_dict_gets(xref->trailer, "Encrypt");
id = fz_dict_gets(xref->trailer, "ID");
if (fz_is_dict(encrypt))
{
error = pdf_new_crypt(&xref->crypt, encrypt, id);
if (error)
{
pdf_free_xref(xref);
return fz_rethrow(error, "cannot decrypt document");
}
}
if (pdf_needs_password(xref))
{
/* Only care if we have a password */
if (password)
{
int okay = pdf_authenticate_password(xref, password);
if (!okay)
{
pdf_free_xref(xref);
return fz_throw("invalid password");
}
}
}
if (repaired)
{
int hasroot, hasinfo;
error = pdf_repair_obj_stms(xref);
if (error)
{
pdf_free_xref(xref);
return fz_rethrow(error, "cannot repair document");
}
hasroot = fz_dict_gets(xref->trailer, "Root") != NULL;
hasinfo = fz_dict_gets(xref->trailer, "Info") != NULL;
for (i = 1; i < xref->len; i++)
{
if (xref->table[i].type == 0 || xref->table[i].type == 'f')
continue;
error = pdf_load_object(&dict, xref, i, 0);
if (error)
{
fz_catch(error, "ignoring broken object (%d 0 R)", i);
continue;
}
if (!hasroot)
{
obj = fz_dict_gets(dict, "Type");
if (fz_is_name(obj) && !strcmp(fz_to_name(obj), "Catalog"))
{
obj = fz_new_indirect(i, 0, xref);
fz_dict_puts(xref->trailer, "Root", obj);
fz_drop_obj(obj);
}
}
if (!hasinfo)
{
if (fz_dict_gets(dict, "Creator") || fz_dict_gets(dict, "Producer"))
{
obj = fz_new_indirect(i, 0, xref);
fz_dict_puts(xref->trailer, "Info", obj);
fz_drop_obj(obj);
}
}
fz_drop_obj(dict);
}
}
error = pdf_read_ocg(xref);
if (error)
{
pdf_free_xref(xref);
return fz_rethrow(error, "Broken Optional Content");
}
*xrefp = xref;
return fz_okay;
}
