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-rw-r--r--ext/atom.lv2/forge.h75
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diff --git a/ext/atom.lv2/forge.h b/ext/atom.lv2/forge.h
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+/*
+ Copyright 2008-2011 David Robillard <http://drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/**
+ @file forge.h Helper constructor functions for LV2 atoms.
+*/
+
+#ifndef LV2_ATOM_FORGE_H
+#define LV2_ATOM_FORGE_H
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+ uint32_t ID;
+ uint32_t Message;
+ uint32_t Property;
+} LV2_Atom_Forge;
+
+static inline LV2_Atom_Forge*
+lv2_atom_forge_new(LV2_URID_Mapper* mapper)
+{
+ LV2_Atom_Forge* forge = (LV2_Atom_Forge*)malloc(sizeof(LV2_Atom_Forge));
+ forge->ID = mapper->map_uri(mapper->handle, LV2_ATOM_URI "#ID");
+ forge->Message = mapper->map_uri(mapper->handle, LV2_ATOM_URI "#Message");
+ forge->Property = mapper->map_uri(mapper->handle, LV2_ATOM_URI "#Property");
+ return forge;
+}
+
+static inline void
+lv2_atom_forge_free(LV2_Atom_Forge* forge)
+{
+ free(forge);
+}
+
+static inline LV2_Atom_ID
+lv2_atom_forge_make_id(LV2_Atom_Forge* forge, uint32_t id)
+{
+ const LV2_Atom_ID atom = { forge->ID, sizeof(uint32_t), id };
+ return atom;
+}
+
+static inline void
+lv2_atom_forge_set_message(LV2_Atom_Forge* forge,
+ LV2_Object* msg,
+ uint32_t id)
+{
+ msg->type = forge->Message;
+ msg->size = sizeof(LV2_Object) - sizeof(LV2_Atom);
+ msg->context = 0;
+ msg->id = id;
+}
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV2_ATOM_FORGE_H */