1 files changed, 160 insertions, 0 deletions
diff --git a/include/lv2/dynmanifest/dynmanifest.h b/include/lv2/dynmanifest/dynmanifest.h
new file mode 100644
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--- /dev/null
+++ b/include/lv2/dynmanifest/dynmanifest.h
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+/*
+  Dynamic manifest specification for LV2
+  Copyright 2008-2011 Stefano D'Angelo <zanga.mail@gmail.com>
+
+  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.
+*/
+
+#ifndef LV2_DYN_MANIFEST_H_INCLUDED
+#define LV2_DYN_MANIFEST_H_INCLUDED
+
+/**
+   @defgroup dynmanifest Dynamic Manifest
+   @ingroup lv2
+
+   Support for dynamic data generation.
+
+   See <http://lv2plug.in/ns/ext/dynmanifest> for details.
+
+   @{
+*/
+
+#include "lv2/core/lv2.h"
+
+#include <stdio.h>
+
+// clang-format off
+
+#define LV2_DYN_MANIFEST_URI    "http://lv2plug.in/ns/ext/dynmanifest"  ///< http://lv2plug.in/ns/ext/dynmanifest
+#define LV2_DYN_MANIFEST_PREFIX LV2_DYN_MANIFEST_URI "#"                ///< http://lv2plug.in/ns/ext/dynmanifest#
+
+// clang-format on
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+   Dynamic manifest generator handle.
+
+   This handle indicates a particular status of a dynamic manifest generator.
+   The host MUST NOT attempt to interpret it and, unlikely LV2_Handle, it is
+   NOT even valid to compare this to NULL. The dynamic manifest generator MAY
+   use it to reference internal data.
+*/
+typedef void* LV2_Dyn_Manifest_Handle;
+
+/**
+   Generate the dynamic manifest.
+
+   @param handle Pointer to an uninitialized dynamic manifest generator handle.
+
+   @param features NULL terminated array of LV2_Feature structs which represent
+   the features the host supports. The dynamic manifest generator may refuse to
+   (re)generate the dynamic manifest if required features are not found here
+   (however hosts SHOULD NOT use this as a discovery mechanism, instead of
+   reading the static manifest file). This array must always exist; if a host
+   has no features, it MUST pass a single element array containing NULL.
+
+   @return 0 on success, otherwise a non-zero error code. The host SHOULD
+   evaluate the result of the operation by examining the returned value and
+   MUST NOT try to interpret the value of handle.
+*/
+int
+lv2_dyn_manifest_open(LV2_Dyn_Manifest_Handle*  handle,
+                      const LV2_Feature* const* features);
+
+/**
+   Fetch a "list" of subject URIs described in the dynamic manifest.
+
+   The dynamic manifest generator has to fill the resource only with the needed
+   triples to make the host aware of the "objects" it wants to expose. For
+   example, if the plugin library exposes a regular LV2 plugin, it should
+   output only a triple like the following:
+
+   <http://example.org/plugin> a lv2:Plugin .
+
+   The objects that are eligible for exposure are those that would need to be
+   represented by a subject node in a static manifest.
+
+   @param handle Dynamic manifest generator handle.
+
+   @param fp FILE * identifying the resource the host has to set up for the
+   dynamic manifest generator. The host MUST pass a writable, empty resource to
+   this function, and the dynamic manifest generator MUST ONLY perform write
+   operations on it at the end of the stream (for example, using only
+   fprintf(), fwrite() and similar).
+
+   @return 0 on success, otherwise a non-zero error code.
+*/
+int
+lv2_dyn_manifest_get_subjects(LV2_Dyn_Manifest_Handle handle, FILE* fp);
+
+/**
+   Function that fetches data related to a specific URI.
+
+   The dynamic manifest generator has to fill the resource with data related to
+   object represented by the given URI. For example, if the library exposes a
+   regular LV2 plugin whose URI, as retrieved by the host using
+   lv2_dyn_manifest_get_subjects() is http://example.org/plugin then it
+   should output something like:
+
+   <pre>
+   <http://example.org/plugin>
+       a lv2:Plugin ;
+       doap:name "My Plugin" ;
+       lv2:binary <mylib.so> ;
+       etc:etc "..." .
+   </pre>
+
+   @param handle Dynamic manifest generator handle.
+
+   @param fp FILE * identifying the resource the host has to set up for the
+   dynamic manifest generator. The host MUST pass a writable resource to this
+   function, and the dynamic manifest generator MUST ONLY perform write
+   operations on it at the current position of the stream (for example, using
+   only fprintf(), fwrite() and similar).
+
+   @param uri URI to get data about (in the "plain" form, i.e., absolute URI
+   without Turtle prefixes).
+
+   @return 0 on success, otherwise a non-zero error code.
+*/
+int
+lv2_dyn_manifest_get_data(LV2_Dyn_Manifest_Handle handle,
+                          FILE*                   fp,
+                          const char*             uri);
+
+/**
+   Function that ends the operations on the dynamic manifest generator.
+
+   This function SHOULD be used by the dynamic manifest generator to perform
+   cleanup operations, etc.
+
+   Once this function is called, referring to handle will cause undefined
+   behavior.
+
+   @param handle Dynamic manifest generator handle.
+*/
+void
+lv2_dyn_manifest_close(LV2_Dyn_Manifest_Handle handle);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+/**
+   @}
+*/
+
+#endif /* LV2_DYN_MANIFEST_H_INCLUDED */