1 files changed, 59 insertions, 0 deletions
diff --git a/pdf/pdf_store.c b/pdf/pdf_store.c
new file mode 100644
index 00000000..4f51526d
--- /dev/null
+++ b/pdf/pdf_store.c
@@ -0,0 +1,59 @@
+#include "fitz.h"
+#include "mupdf.h"
+
+static int
+pdf_make_hash_key(fz_store_hash *hash, void *key_)
+{
+	fz_obj *key = (fz_obj *)key_;
+
+	if (!fz_is_indirect(key))
+		return 0;
+	hash->u.i.i0 = fz_to_num(key);
+	hash->u.i.i1 = fz_to_gen(key);
+	return 1;
+}
+
+static void *
+pdf_keep_key(fz_context *ctx, void *key)
+{
+	return (void *)fz_keep_obj((fz_obj *)key);
+}
+
+static void
+pdf_drop_key(fz_context *ctx, void *key)
+{
+	fz_drop_obj((fz_obj *)key);
+}
+
+static int
+pdf_cmp_key(void *k0, void *k1)
+{
+	return fz_objcmp((fz_obj *)k0, (fz_obj *)k1);
+}
+
+static fz_store_type pdf_obj_store_type =
+{
+	pdf_make_hash_key,
+	pdf_keep_key,
+	pdf_drop_key,
+	pdf_cmp_key
+};
+
+void
+pdf_store_item(fz_context *ctx, fz_obj *key, void *val, unsigned int itemsize)
+{
+	fz_store_item(ctx, key, val, itemsize, &pdf_obj_store_type);
+}
+
+void *
+pdf_find_item(fz_context *ctx, fz_store_free_fn *free, fz_obj *key)
+{
+	return fz_find_item(ctx, free, key, &pdf_obj_store_type);
+}
+
+void
+pdf_remove_item(fz_context *ctx, fz_store_free_fn *free, fz_obj *key)
+{
+	fz_remove_item(ctx, free, key, &pdf_obj_store_type);
+}
+