comparison vamp-hostsdk/LoadRequest.h @ 423:8c45dee08a95 vampipe

Add PluginConfiguration, PluginStaticData, and LoadRequest structures, and use them in PluginLoader

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Vamp
+
+    An API for audio analysis and feature extraction plugins.
+
+    Centre for Digital Music, Queen Mary, University of London.
+    Copyright 2006-2016 Chris Cannam and QMUL.
+  
+    Permission is hereby granted, free of charge, to any person
+    obtaining a copy of this software and associated documentation
+    files (the "Software"), to deal in the Software without
+    restriction, including without limitation the rights to use, copy,
+    modify, merge, publish, distribute, sublicense, and/or sell copies
+    of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be
+    included in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+    Except as contained in this notice, the names of the Centre for
+    Digital Music; Queen Mary, University of London; and Chris Cannam
+    shall not be used in advertising or otherwise to promote the sale,
+    use or other dealings in this Software without prior written
+    authorization.
+*/
+
+#ifndef VAMP_LOAD_REQUEST_H
+#define VAMP_LOAD_REQUEST_H
+
+#include "PluginStaticData.h"
+#include "PluginConfiguration.h"
+
+#include "hostguard.h"
+
+#include <map>
+#include <string>
+
+_VAMP_SDK_HOSTSPACE_BEGIN(LoadRequest.h)
+
+namespace Vamp {
+
+class Plugin;
+
+namespace HostExt {
+
+/**
+ * \class LoadRequest LoadRequest.h <vamp-hostsdk/LoadRequest.h>
+ * 
+ * Vamp::HostExt::LoadRequest is a structure containing the
+ * information necessary to load a plugin. When a request is made to
+ * load a plugin using a LoadRequest, the response is typically
+ * returned in a LoadResponse structure.
+ *
+ * \see LoadResponse
+ *
+ * \note This class was introduced in version 2.7 of the Vamp plugin
+ * SDK, along with the PluginLoader method that accepts this structure
+ * rather than accepting its elements individually.
+ */
+struct LoadRequest
+{
+    LoadRequest() : // invalid request by default
+	inputSampleRate(0.f),
+	adapterFlags(0) { }
+    
+    std::string pluginKey; //!!! separate out key from PluginLoader??
+    float inputSampleRate;
+    int adapterFlags; //!!! from PluginLoader::AdapterFlags, but how best to handle?
+};
+
+/**
+ * \class LoadResponse LoadResponse.h <vamp-hostsdk/LoadResponse.h>
+ * 
+ * Vamp::HostExt::LoadResponse is a structure containing the
+ * information returned by PluginLoader when asked to load a plugin
+ * using a LoadRequest.
+ *
+ * If the plugin could not be loaded, the plugin field will be 0.
+ *
+ * The caller takes ownership of the plugin contained here, which
+ * should be deleted (using the standard C++ delete keyword) after
+ * use.
+ *
+ * \see LoadRequest
+ *
+ * \note This class was introduced in version 2.7 of the Vamp plugin
+ * SDK, along with the PluginLoader method that returns this structure.
+ */
+struct LoadResponse
+{
+    LoadResponse() : // invalid (failed) response by default
+	plugin(0) { }
+    
+    Plugin *plugin;
+    PluginStaticData staticData;
+    PluginConfiguration defaultConfiguration;
+};
+
+}
+
+}
+
+_VAMP_SDK_HOSTSPACE_END(LoadRequest.h)
+
+#endif