static cbz_page *
cbz_load_page(fz_context *ctx, cbz_document *doc, int number)
{
unsigned char *data = NULL;
cbz_page *page = NULL;
fz_buffer *buf;
if (number < 0 || number >= doc->page_count)
return NULL;
fz_var(data);
fz_var(page);
buf = fz_read_archive_entry(ctx, doc->zip, doc->page[number]);
fz_try(ctx)
{
page = fz_new_page(ctx, sizeof *page);
page->super.bound_page = (fz_page_bound_page_fn *)cbz_bound_page;
page->super.run_page_contents = (fz_page_run_page_contents_fn *)cbz_run_page;
page->super.drop_page_imp = (fz_page_drop_page_imp_fn *)cbz_drop_page_imp;
page->image = fz_new_image_from_buffer(ctx, buf);
}
fz_always(ctx)
{
fz_drop_buffer(ctx, buf);
}
fz_catch(ctx)
{
fz_free(ctx, data);
cbz_drop_page_imp(ctx, page);
fz_rethrow(ctx);
}
return page;
}
static fz_page *
htdoc_load_page(fz_context *ctx, fz_document *doc_, int number)
{
html_document *doc = (html_document*)doc_;
html_page *page = fz_new_page(ctx, sizeof *page);
page->super.bound_page = htdoc_bound_page;
page->super.run_page_contents = htdoc_run_page;
page->super.drop_page_imp = htdoc_drop_page_imp;
page->doc = doc;
page->number = number;
return (fz_page*)page;
}
static fz_page *
epub_load_page(fz_context *ctx, fz_document *doc_, int number)
{
epub_document *doc = (epub_document*)doc_;
epub_page *page = fz_new_page(ctx, sizeof *page);
page->super.bound_page = epub_bound_page;
page->super.run_page_contents = epub_run_page;
page->super.drop_page_imp = epub_drop_page_imp;
page->doc = doc;
page->number = number;
return (fz_page*)page;
}
static fz_page *
svg_load_page(fz_context *ctx, fz_document *doc_, int number)
{
svg_document *doc = (svg_document*)doc_;
svg_page *page;
if (number != 0)
return NULL;
page = fz_new_page(ctx, sizeof *page);
page->super.bound_page = svg_bound_page;
page->super.run_page_contents = svg_run_page;
page->super.drop_page = svg_drop_page;
page->doc = doc;
return (fz_page*)page;
}
static img_page *
img_load_page(fz_context *ctx, img_document *doc, int number)
{
img_page *page;
if (number != 0)
return NULL;
page = fz_new_page(ctx, sizeof *page);
page->super.bound_page = (fz_page_bound_page_fn *)img_bound_page;
page->super.run_page_contents = (fz_page_run_page_contents_fn *)img_run_page;
page->super.drop_page_imp = (fz_page_drop_page_imp_fn *)img_drop_page_imp;
page->image = fz_keep_image(ctx, doc->image);
return page;
}
static tiff_page *
tiff_load_page(fz_context *ctx, tiff_document *doc, int number)
{
fz_pixmap *pixmap = NULL;
fz_image *image = NULL;
tiff_page *page = NULL;
if (number < 0 || number >= doc->page_count)
return NULL;
fz_var(pixmap);
fz_var(image);
fz_var(page);
fz_try(ctx)
{
size_t len;
unsigned char *data;
len = fz_buffer_storage(ctx, doc->buffer, &data);
pixmap = fz_load_tiff_subimage(ctx, data, len, number);
image = fz_new_image_from_pixmap(ctx, pixmap, NULL);
page = fz_new_page(ctx, sizeof *page);
page->super.bound_page = (fz_page_bound_page_fn *)tiff_bound_page;
page->super.run_page_contents = (fz_page_run_page_contents_fn *)tiff_run_page;
page->super.drop_page = (fz_page_drop_page_fn *)tiff_drop_page;
page->image = fz_keep_image(ctx, image);
}
fz_always(ctx)
{
fz_drop_image(ctx, image);
fz_drop_pixmap(ctx, pixmap);
}
fz_catch(ctx)
{
fz_free(ctx, page);
fz_rethrow(ctx);
}
return page;
}
xps_page *
xps_load_page(fz_context *ctx, xps_document *doc, int number)
{
xps_page *page = NULL;
xps_fixpage *fix;
fz_xml *root;
int n = 0;
fz_var(page);
for (fix = doc->first_page; fix; fix = fix->next)
{
if (n == number)
{
root = xps_load_fixed_page(ctx, doc, fix);
fz_try(ctx)
{
page = fz_new_page(ctx, sizeof *page);
page->super.load_links = (fz_page_load_links_fn *)xps_load_links;
page->super.bound_page = (fz_page_bound_page_fn *)xps_bound_page;
page->super.run_page_contents = (fz_page_run_page_contents_fn *)xps_run_page;
page->super.drop_page_imp = (fz_page_drop_page_imp_fn *)xps_drop_page_imp;
page->doc = (xps_document*) fz_keep_document(ctx, &doc->super);
page->fix = fix;
page->root = root;
}
fz_catch(ctx)
{
fz_drop_xml(ctx, root);
fz_rethrow(ctx);
}
return page;
}
n ++;
}