From 09943e1d571bb82326c0ac8195e2cb2b9a29e1b6 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Tue, 29 Mar 2011 02:10:57 +0000
Subject: lv2_pfile => rdff.

git-svn-id: svn://localhost/ardour2/branches/3.0@9221 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/rdff.h | 121 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 libs/ardour/rdff.h

(limited to 'libs/ardour/rdff.h')

diff --git a/libs/ardour/rdff.h b/libs/ardour/rdff.h
new file mode 100644
index 0000000000..6e9d197536
--- /dev/null
+++ b/libs/ardour/rdff.h
@@ -0,0 +1,121 @@
+/*
+  RDFF - RDF in RIFF
+  Copyright 2011 David Robillard <http://drobilla.net>
+ 
+  This is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+ 
+  This software is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+ 
+  You should have received a copy of the GNU General Public License
+  along with this sofware; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+  02110-1301 USA.
+*/
+
+#ifndef RDFF_RDFF_H
+#define RDFF_RDFF_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifdef __GNUC__
+#    define PACKED __attribute__((__packed__))
+#else
+#    define PACKED
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct _RDFF* RDFF;
+
+typedef enum {
+	RDFF_STATUS_OK            = 0,
+	RDFF_STATUS_UNKNOWN_ERROR = 1,
+	RDFF_STATUS_EOF           = 2,
+	RDFF_STATUS_CORRUPT       = 3
+} RDFFStatus;
+
+/**
+   Generic RIFF chunk header.
+*/
+typedef struct {
+	char     type[4];
+	uint32_t size;
+	char     data[];
+} PACKED RDFFChunk;
+
+/**
+   Body of a URID chunk.
+*/
+typedef struct {
+	uint32_t id;
+	char     uri[];
+} PACKED RDFFURIChunk;
+
+/**
+   Body of a KVAL chunk.
+*/
+typedef struct {
+	uint32_t key;
+	uint32_t type;
+	uint32_t size;
+	char     value[];
+} PACKED RDFFValueChunk;
+		
+/**
+   Open/Create a new RDFF file.
+*/
+RDFF
+rdff_open(const char* path, bool write);
+
+/**
+   Write a URI ID to @a file.
+*/
+RDFFStatus
+rdff_write_uri(RDFF        file,
+               uint32_t    id,
+               const char* uri,
+               uint32_t    len);
+
+/**
+   Write a key/value record to @a file.
+*/
+RDFFStatus
+rdff_write_value(RDFF        file,
+                 uint32_t    key,
+                 const void* value,
+                 uint32_t    size,
+                 uint32_t    type);
+
+/**
+   Read a chunk from @a file.
+
+   @param buf MUST point to an RDFFChunk dynamically allocated with malloc.
+   The @a size field (i.e. (*buf)->size) MUST be set to the amount of available
+   memory in the chunk (not including the header). If this is insufficient,
+   *buf will be resized using realloc.
+*/
+RDFFStatus
+rdff_read_chunk(RDFF        file,
+                RDFFChunk** buf);
+
+/**
+   Close @a file.
+   After this call, @a file is invalid.
+*/
+void
+rdff_close(RDFF file);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* RDFF_RDFF_H */
-- 
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