Move ns to lv2/ns so repository top level can be used as an include dir directly.

1 files changed, 248 insertions, 0 deletions

diff --git a/lv2/ns/ext/atom/atom.h b/lv2/ns/ext/atom/atom.h
new file mode 100644
index 0000000..39d721c
--- /dev/null
+++ b/lv2/ns/ext/atom/atom.h
@@ -0,0 +1,248 @@
+/*
+  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 atom.h C header for the LV2 Atom extension
+   <http://lv2plug.in/ns/ext/atom>.
+
+   This header describes the binary layout of various types defined in the
+   atom extension.
+*/
+
+#ifndef LV2_ATOM_H
+#define LV2_ATOM_H
+
+#define LV2_ATOM_URI "http://lv2plug.in/ns/ext/atom"
+
+#define LV2_ATOM_REFERENCE_TYPE 0
+
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   An LV2 Atom.
+
+   An "Atom" is a generic chunk of memory with a given type and size.
+   The type field defines how to interpret an atom.
+
+   All atoms are by definition Plain Old Data (POD) and may be safely copied
+   (e.g. with memcpy) using the size field, except atoms with type 0.  An atom
+   with type 0 is a reference, and may only be used via the functions provided
+   in LV2_Blob_Support (e.g. it MUST NOT be manually copied).
+*/
+typedef struct {
+	uint32_t type;    /**< Type of this atom (mapped URI). */
+	uint32_t size;    /**< Size in bytes, not including type and size. */
+	uint8_t  body[];  /**< Body of length @ref size bytes. */
+} LV2_Atom;
+
+/**
+   An atom:String.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;   /**< Type of this atom (mapped URI). */
+	uint32_t size;   /**< Size in bytes, not including type and size. */
+	uint8_t  str[];  /**< Null-terminated string data in UTF-8 encoding. */
+} LV2_Atom_String;
+
+/**
+   An atom:Literal.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;      /**< Type of this atom (mapped URI). */
+	uint32_t size;      /**< Size in bytes, not including type and size. */
+	uint32_t datatype;  /**< The ID of the datatype of this literal. */
+	uint32_t lang;      /**< The ID of the language of this literal. */
+	uint8_t  str[];     /**< Null-terminated string data in UTF-8 encoding. */
+} LV2_Atom_Literal;
+
+/**
+   An atom:URID or atom:BlankID.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;  /**< Type of this atom (mapped URI). */
+	uint32_t size;  /**< Size in bytes, not including type and size. */
+	uint32_t id;    /**< URID (integer mapped URI) or blank node ID. */
+} LV2_Atom_ID;
+
+/**
+   An atom:Vector.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;        /**< Type of this atom (mapped URI). */
+	uint32_t size;        /**< Size in bytes, not including type and size. */
+	uint32_t elem_count;  /**< The number of elements in the vector */
+	uint32_t elem_type;   /**< The type of each element in the vector */
+	uint8_t  elems[];     /**< Sequence of element bodies */
+} LV2_Atom_Vector;
+
+/**
+   The body of an atom:Property.
+   Note this type is not an LV2_Atom.
+*/
+typedef struct _LV2_Atom_Property {
+	uint32_t key;    /**< Key (predicate) (mapped URI). */
+	LV2_Atom value;  /**< Value (object) */
+} LV2_Atom_Property;
+
+/**
+   An atom:Thing (Resource, Blank, or Message).
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;          /**< Type of this atom (mapped URI). */
+	uint32_t size;          /**< Size in bytes, not including type and size. */
+	uint32_t context;       /**< ID of context graph, or 0 for default */
+	uint32_t id;            /**< URID (for Resource) or blank ID (for Blank) */
+	uint8_t  properties[];  /**< Sequence of LV2_Atom_Property */
+} LV2_Thing;
+
+/**
+   An atom:Event, a timestamped Atom.
+   Note this type is not an LV2_Atom, but contains an Atom as payload.
+*/
+typedef struct {
+	uint32_t frames;     /**< Time in frames relative to this block. */
+	uint32_t subframes;  /**< Fractional time in 1/(2^32)ths of a frame. */
+	LV2_Atom body;       /**< Event body. */
+} LV2_Atom_Event;
+
+/**
+   An atom:Int32, a signed 32-bit integer.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;
+	uint32_t size;
+	int32_t  value;
+} LV2_Atom_Int32;
+
+/**
+   An atom:Int64, a signed 64-bit integer.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;
+	uint32_t size;
+	int64_t value;
+} LV2_Atom_Int64;
+
+/**
+   An atom:Float, a 32-bit IEEE-754 floating point number.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;
+	uint32_t size;
+	float    value;
+} LV2_Atom_Float;
+
+/**
+   An atom:Double, a 64-bit IEEE-754 floating point number.
+   This type may safely be cast to LV2_Atom.
+*/
+typedef struct {
+	uint32_t type;
+	uint32_t size;
+	double   value;
+} LV2_Atom_Double;
+
+/**
+   A buffer of events (the contents of an atom:EventPort).
+
+   The host MAY elect to allocate buffers as a single chunk of POD by using
+   this struct as a header much like LV2_Atom, or it may choose to point to
+   a fragment of a buffer elsewhere.  In either case, @ref data points to the
+   start of the data contained in this buffer.
+
+   The buffer at @ref data contains a sequence of LV2_Atom_Event padded such
+   that the start of each event is aligned to 64 bits, e.g.:
+   <pre>
+   | Event 1 (size 6)                              | Event 2
+   |       |       |       |       |       |       |       |       |
+   | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
+   |FRAMES |SUBFRMS|TYPE   |SIZE   |DATADATADATAPAD|FRAMES |SUBFRMS|...
+   </pre>
+*/
+typedef struct {
+
+	/**
+	   The contents of the event buffer. This may or may not reside in the
+	   same block of memory as this header, plugins must not assume either.
+	   The host guarantees this points to at least capacity bytes of allocated
+	   memory (though only size bytes of that are valid events).
+	*/
+	uint8_t* data;
+
+	/**
+	   The number of events in this buffer.
+
+	   INPUTS: The host must set this field to the number of events contained
+	   in the data buffer before calling run(). The plugin must not change
+	   this field.
+
+	   OUTPUTS: The plugin must set this field to the number of events it has
+	   written to the buffer before returning from run(). Any initial value
+	   should be ignored by the plugin.
+	*/
+	uint32_t event_count;
+
+	/**
+	   The capacity of the data buffer in bytes.
+	   This is set by the host and must not be changed by the plugin.
+	   The host is allowed to change this between run() calls.
+	*/
+	uint32_t capacity;
+
+	/**
+	   The size of the initial portion of the data buffer containing data.
+
+	   INPUTS: The host must set this field to the number of bytes used
+	   by all events it has written to the buffer (including headers)
+	   before calling the plugin's run().
+	   The plugin must not change this field.
+
+	   OUTPUTS: The plugin must set this field to the number of bytes
+	   used by all events it has written to the buffer (including headers)
+	   before returning from run().
+	   Any initial value should be ignored by the plugin.
+	*/
+	uint32_t size;
+
+} LV2_Atom_Buffer;
+
+/**
+   Pad a size to 64 bits.
+*/
+static inline uint32_t
+lv2_atom_pad_size(uint32_t size)
+{
+	return (size + 7) & (~7);
+}
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* LV2_ATOM_H */