pdf_pattern *
pdf_load_pattern(fz_context *ctx, pdf_document *doc, pdf_obj *dict)
{
pdf_pattern *pat;
pdf_obj *obj;
if ((pat = pdf_find_item(ctx, pdf_drop_pattern_imp, dict)) != NULL)
{
return pat;
}
pat = fz_malloc_struct(ctx, pdf_pattern);
FZ_INIT_STORABLE(pat, 1, pdf_drop_pattern_imp);
pat->document = doc;
pat->resources = NULL;
pat->contents = NULL;
fz_try(ctx)
{
/* Store pattern now, to avoid possible recursion if objects refer back to this one */
pdf_store_item(ctx, dict, pat, pdf_pattern_size(pat));
pat->ismask = pdf_to_int(ctx, pdf_dict_get(ctx, dict, PDF_NAME_PaintType)) == 2;
pat->xstep = pdf_to_real(ctx, pdf_dict_get(ctx, dict, PDF_NAME_XStep));
pat->ystep = pdf_to_real(ctx, pdf_dict_get(ctx, dict, PDF_NAME_YStep));
obj = pdf_dict_gets(ctx, dict, "BBox");
pdf_to_rect(ctx, obj, &pat->bbox);
obj = pdf_dict_gets(ctx, dict, "Matrix");
if (obj)
pdf_to_matrix(ctx, obj, &pat->matrix);
else
pat->matrix = fz_identity;
pat->resources = pdf_dict_get(ctx, dict, PDF_NAME_Resources);
if (pat->resources)
pdf_keep_obj(ctx, pat->resources);
pat->contents = pdf_keep_obj(ctx, dict);
}
fz_catch(ctx)
{
pdf_remove_item(ctx, pdf_drop_pattern_imp, dict);
pdf_drop_pattern(ctx, pat);
fz_rethrow_message(ctx, "cannot load pattern (%d %d R)", pdf_to_num(ctx, dict), pdf_to_gen(ctx, dict));
}
return pat;
}
pdf_pattern *
pdf_load_pattern(pdf_document *xref, pdf_obj *dict)
{
pdf_pattern *pat;
pdf_obj *obj;
fz_context *ctx = xref->ctx;
if ((pat = pdf_find_item(ctx, pdf_free_pattern_imp, dict)))
{
return pat;
}
pat = fz_malloc_struct(ctx, pdf_pattern);
FZ_INIT_STORABLE(pat, 1, pdf_free_pattern_imp);
pat->resources = NULL;
pat->contents = NULL;
/* Store pattern now, to avoid possible recursion if objects refer back to this one */
pdf_store_item(ctx, dict, pat, pdf_pattern_size(pat));
pat->ismask = pdf_to_int(pdf_dict_gets(dict, "PaintType")) == 2;
pat->xstep = pdf_to_real(pdf_dict_gets(dict, "XStep"));
pat->ystep = pdf_to_real(pdf_dict_gets(dict, "YStep"));
obj = pdf_dict_gets(dict, "BBox");
pdf_to_rect(ctx, obj, &pat->bbox);
obj = pdf_dict_gets(dict, "Matrix");
if (obj)
pdf_to_matrix(ctx, obj, &pat->matrix);
else
pat->matrix = fz_identity;
pat->resources = pdf_dict_gets(dict, "Resources");
if (pat->resources)
pdf_keep_obj(pat->resources);
fz_try(ctx)
{
pat->contents = pdf_keep_obj(dict);
}
fz_catch(ctx)
{
pdf_remove_item(ctx, pdf_free_pattern_imp, dict);
pdf_drop_pattern(ctx, pat);
fz_throw(ctx, "cannot load pattern stream (%d %d R)", pdf_to_num(dict), pdf_to_gen(dict));
}
return pat;
}
