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-rw-r--r--doc/doxy-style.css2
-rw-r--r--doc/reference.doxygen.in6
-rw-r--r--lv2/lv2plug.in/ns/ext/atom/atom.hpp81
-rw-r--r--lv2/lv2plug.in/ns/ext/urid/urid.hpp114
-rw-r--r--lv2/lv2plug.in/ns/lv2core/Feature.hpp74
-rw-r--r--lv2/lv2plug.in/ns/lv2core/Lib.hpp81
-rw-r--r--lv2/lv2plug.in/ns/lv2core/Plugin.hpp260
-rw-r--r--plugins/eg-midiamp.lv2/README.txt3
-rw-r--r--plugins/eg-midiamp.lv2/manifest.ttl.in7
-rw-r--r--plugins/eg-midiamp.lv2/manifest.ttl.in~949f1baa9a283df26a7238c6bd4bb97272ae11927
-rw-r--r--plugins/eg-midiamp.lv2/manifest.ttl.in~HEAD7
-rw-r--r--plugins/eg-midiamp.lv2/midiamp.cpp128
-rw-r--r--plugins/eg-midiamp.lv2/midiamp.ttl35
l---------plugins/eg-midiamp.lv2/waf1
-rw-r--r--plugins/eg-midiamp.lv2/wscript66
-rw-r--r--plugins/wscript8
-rw-r--r--wscript4
17 files changed, 882 insertions, 2 deletions
diff --git a/doc/doxy-style.css b/doc/doxy-style.css
index f6ff8bb..29ef6d8 100644
--- a/doc/doxy-style.css
+++ b/doc/doxy-style.css
@@ -1,4 +1,5 @@
body {
+ font-family: sans-serif;
max-width: 80em;
margin: 0;
margin-left: auto;
@@ -347,6 +348,7 @@ td.mlabels-right {
.memtemplate {
color: #4665A2;
font-weight: bold;
+ padding-left: 6px;
}
.memnav {
diff --git a/doc/reference.doxygen.in b/doc/reference.doxygen.in
index ff210f4..a8c362e 100644
--- a/doc/reference.doxygen.in
+++ b/doc/reference.doxygen.in
@@ -431,7 +431,7 @@ EXTRACT_ALL = NO
# be included in the documentation.
# The default value is: NO.
-EXTRACT_PRIVATE = YES
+EXTRACT_PRIVATE = NO
# If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal
# scope will be included in the documentation.
@@ -808,7 +808,9 @@ INPUT = @LV2_SRCDIR@/doc/mainpage.dox \
@LV2_SRCDIR@/lv2/lv2plug.in/ns/ext/worker/worker.h \
@LV2_SRCDIR@/lv2/lv2plug.in/ns/extensions/ui/ui.h \
@LV2_SRCDIR@/lv2/lv2plug.in/ns/extensions/units/units.h \
- @LV2_SRCDIR@/lv2/lv2plug.in/ns/lv2core/lv2.h
+ @LV2_SRCDIR@/lv2/lv2plug.in/ns/lv2core/lv2.h \
+ @LV2_SRCDIR@/lv2/lv2plug.in/ns/lv2core/Plugin.hpp \
+ @LV2_SRCDIR@/lv2/lv2plug.in/ns/lv2core/Lib.hpp
# This tag can be used to specify the character encoding of the source files
# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
diff --git a/lv2/lv2plug.in/ns/ext/atom/atom.hpp b/lv2/lv2plug.in/ns/ext/atom/atom.hpp
new file mode 100644
index 0000000..87871c0
--- /dev/null
+++ b/lv2/lv2plug.in/ns/ext/atom/atom.hpp
@@ -0,0 +1,81 @@
+/*
+ Copyright 2008-2014 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.
+*/
+
+#ifndef LV2_ATOM_ATOM_HPP
+#define LV2_ATOM_ATOM_HPP
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+
+namespace lv2 {
+namespace atom {
+
+typedef LV2_Atom Atom;
+
+struct Event : public LV2_Atom_Event
+{
+ inline uint32_t type() const { return body.type; }
+ inline uint32_t size() const { return body.size; }
+
+ /** Convenience accessor for byte-oriented payloads. */
+ inline uint8_t operator[](size_t i) const {
+ return *((const uint8_t*)(&body + 1) + i);
+ }
+};
+
+class Sequence : public LV2_Atom_Sequence
+{
+public:
+ class const_iterator {
+ public:
+ inline const_iterator(const Event* ev) : m_ev(ev) {}
+
+ inline const_iterator operator++() {
+ m_ev = (const Event*)(
+ (const uint8_t*)m_ev +
+ sizeof(LV2_Atom_Event) +
+ lv2_atom_pad_size(m_ev->body.size));
+ return *this;
+ }
+
+ inline bool operator==(const const_iterator& i) const {
+ return m_ev == i.m_ev;
+ }
+
+ inline bool operator!=(const const_iterator& i) const {
+ return m_ev != i.m_ev;
+ }
+
+ inline const Event& operator*() const { return *m_ev; }
+ inline const Event* operator->() const { return m_ev; }
+
+ private:
+ const Event* m_ev;
+ };
+
+ inline const_iterator begin() const {
+ return const_iterator((const Event*)(&body + 1));
+ }
+
+ inline const_iterator end() const {
+ return const_iterator((const Event*)((const char*)&body + atom.size));
+ }
+};
+
+} // namespace atom
+} // namespace lv2
+
+#endif // LV2_ATOM_ATOM_HPP
diff --git a/lv2/lv2plug.in/ns/ext/urid/urid.hpp b/lv2/lv2plug.in/ns/ext/urid/urid.hpp
new file mode 100644
index 0000000..38fa8be
--- /dev/null
+++ b/lv2/lv2plug.in/ns/ext/urid/urid.hpp
@@ -0,0 +1,114 @@
+/*
+ Copyright 2015 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.
+*/
+
+#ifndef LV2_URID_HPP
+#define LV2_URID_HPP
+
+#include "lv2/lv2plug.in/ns/lv2core/Feature.hpp"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+
+namespace lv2 {
+namespace urid {
+
+/**
+ URI mapped to an integer.
+*/
+typedef LV2_URID URID;
+
+/**
+ URID Map Feature (LV2_URID__map)
+*/
+template<bool Required>
+class Map : public Feature<LV2_URID_Map, Required>
+{
+public:
+ Map(const LV2_Feature*const* features,
+ bool* valid)
+ : Feature<LV2_URID_Map, true>(features, LV2_URID__map, valid)
+ {}
+
+ /**
+ Get the numeric ID of a URI.
+
+ If the ID does not already exist, it will be created.
+
+ This function is referentially transparent; any number of calls with the
+ same arguments is guaranteed to return the same value over the life of a
+ plugin instance. Note, however, that several URIs MAY resolve to the
+ same ID if the host considers those URIs equivalent.
+
+ This function is not necessarily very fast or RT-safe: plugins SHOULD
+ cache any IDs they might need in performance critical situations.
+
+ The return value 0 is reserved and indicates that an ID for that URI
+ could not be created for whatever reason. However, hosts SHOULD NOT
+ return 0 from this function in non-exceptional circumstances (i.e. the
+ URI map SHOULD be dynamic).
+
+ @param handle Must be the callback_data member of this struct.
+ @param uri The URI to be mapped to an integer ID.
+ */
+ LV2_URID map(const char* uri) {
+ return this->m_data->map(this->m_data->handle, uri);
+ }
+
+ /**
+ Convenience wrapper for calling map().
+ */
+ LV2_URID operator()(const char* uri) { return map(uri); }
+};
+
+/**
+ URI Unmap Feature (LV2_URID__unmap)
+*/
+template<bool Required>
+class Unmap : public Feature<LV2_URID_Unmap, Required>
+{
+public:
+ Unmap(const LV2_Feature*const* features,
+ bool* valid)
+ : Feature<LV2_URID_Map, true>(features, LV2_URID__unmap, valid)
+ {}
+
+ /**
+ Get the URI for a previously mapped numeric ID.
+
+ Returns NULL if `urid` is not yet mapped. Otherwise, the corresponding
+ URI is returned in a canonical form. This MAY not be the exact same
+ string that was originally passed to LV2_URID_Map::map(), but it MUST be
+ an identical URI according to the URI syntax specification (RFC3986). A
+ non-NULL return for a given `urid` will always be the same for the life
+ of the plugin. Plugins that intend to perform string comparison on
+ unmapped URIs SHOULD first canonicalise URI strings with a call to
+ map_uri() followed by a call to unmap_uri().
+
+ @param handle Must be the callback_data member of this struct.
+ @param urid The ID to be mapped back to the URI string.
+ */
+ const char* unmap(LV2_URID urid) {
+ return this->m_data->unmap(this->m_data->handle, urid);
+ }
+
+ /**
+ Convenience wrapper for calling unmap().
+ */
+ const char* operator()(LV2_URID urid) { return unmap(urid); }
+};
+
+} // namespace urid
+} // namespace lv2
+
+#endif // LV2_URID_HPP
diff --git a/lv2/lv2plug.in/ns/lv2core/Feature.hpp b/lv2/lv2plug.in/ns/lv2core/Feature.hpp
new file mode 100644
index 0000000..81be218
--- /dev/null
+++ b/lv2/lv2plug.in/ns/lv2core/Feature.hpp
@@ -0,0 +1,74 @@
+/*
+ Copyright 2015 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.
+*/
+
+#ifndef LV2_FEATURE_HPP
+#define LV2_FEATURE_HPP
+
+#include <string.h>
+
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+
+namespace lv2 {
+
+/**
+ Feature.
+
+ Features allow hosts to make additional functionality available to plugins
+ without requiring modification to the LV2 API. Extensions may define new
+ features and specify the `URI` and `data` to be used if necessary.
+ Some features, such as lv2:isLive, do not require the host to pass data.
+*/
+template<typename Data, bool Required>
+class Feature
+{
+public:
+ /**
+ Initialize feature by retrieving data from the host.
+
+ @param features Feature array passed by the host.
+ @param uri URI of this feature.
+ @param valid Set to false iff feature is required but unsupported.
+ */
+ Feature(const LV2_Feature*const* features,
+ const char* uri,
+ bool* valid)
+ : m_data(nullptr)
+ , m_supported(false)
+ {
+ for (const LV2_Feature*const* f = features; *f; ++f) {
+ if (!strcmp((*f)->URI, uri)) {
+ m_data = (Data*)(*f)->data;
+ m_supported = true;
+ break;
+ }
+ }
+ if (Required && !m_supported) {
+ *valid = false;
+ }
+ }
+
+ Data* data() const { return m_data; }
+ bool supported() const { return m_supported; }
+
+protected:
+ Data* m_data;
+ bool m_supported;
+};
+
+} // namespace lv2
+
+#endif // LV2_URID_HPP
diff --git a/lv2/lv2plug.in/ns/lv2core/Lib.hpp b/lv2/lv2plug.in/ns/lv2core/Lib.hpp
new file mode 100644
index 0000000..5d7670b
--- /dev/null
+++ b/lv2/lv2plug.in/ns/lv2core/Lib.hpp
@@ -0,0 +1,81 @@
+/*
+ Copyright 2015 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.
+*/
+
+#ifndef LV2_LIB_HPP
+#define LV2_LIB_HPP
+
+#include "lv2/lv2plug.in/ns/lv2core/Plugin.hpp"
+
+namespace lv2 {
+
+/**
+ C++ wrapper for an LV2 plugin library.
+
+ This interface is a convenience for plugin authors only, and is not an ABI
+ used by hosts. Plugin authors should inherit from this interface, passing
+ their derived class as the template parameter, and provide an
+ lv2_lib_descriptor entry point in C:
+
+ @code
+ class MyLib : public lv2::Lib<MyLib> { ... };
+
+ LV2_SYMBOL_EXPORT static const LV2_Lib_Descriptor*
+ lv2_lib_descriptor(const char* bundle_path,
+ const LV2_Feature *const * features)
+ {
+ return new MyLib(bundle_path, features);
+ }
+ @endcode
+*/
+template<class Derived>
+class Lib : public LV2_Lib_Descriptor
+{
+public:
+ /**
+ Library constructor.
+ */
+ Lib(const char* bundle_path,
+ const LV2_Feature*const* features)
+ {
+ LV2_Lib_Descriptor::handle = this;
+ LV2_Lib_Descriptor::size = sizeof(LV2_Lib_Descriptor);
+ LV2_Lib_Descriptor::cleanup = s_cleanup;
+ LV2_Lib_Descriptor::get_plugin = s_get_plugin;
+ }
+
+ /**
+ Plugin accessor, override to return your plugin descriptors.
+
+ Plugins are accessed by index using values from 0 upwards. Out of range
+ indices MUST result in this function returning NULL, so the host can
+ enumerate plugins by increasing `index` until NULL is returned.
+ */
+ const LV2_Descriptor* get_plugin(uint32_t index) { return NULL; }
+
+private:
+ static void s_cleanup(LV2_Lib_Handle handle) {
+ delete reinterpret_cast<Derived*>(handle);
+ }
+
+ static const LV2_Descriptor* s_get_plugin(LV2_Lib_Handle handle,
+ uint32_t index) {
+ return reinterpret_cast<Derived*>(handle)->get_plugin(index);
+ }
+};
+
+} /* namespace lv2 */
+
+#endif /* LV2_LIB_HPP */
diff --git a/lv2/lv2plug.in/ns/lv2core/Plugin.hpp b/lv2/lv2plug.in/ns/lv2core/Plugin.hpp
new file mode 100644
index 0000000..f671640
--- /dev/null
+++ b/lv2/lv2plug.in/ns/lv2core/Plugin.hpp
@@ -0,0 +1,260 @@
+/*
+ Copyright 2015 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.
+*/
+
+#ifndef LV2_PLUGIN_HPP
+#define LV2_PLUGIN_HPP
+
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+namespace lv2 {
+
+/**
+ C++ interface for writing an LV2 plugin.
+
+ This interface is a convenience for plugin authors only, and is not an ABI
+ used by hosts. To implement a plugin, inherit from this interface with the
+ derived class passed as the template parameter. The C LV2_Descriptor for the
+ plugin can be fetched with descriptor().
+
+ @code
+ class MyPlug : public lv2::Plugin<MyPlug> {
+ // ...
+ };
+
+ static const LV2_Descriptor p = MyPlug::descriptor("http://example.org/plug");
+ @endcode
+
+ This class is a stateless interface and imposes no restrictions or overhead
+ compared to a plugin implemented using the underlying C interface. Note
+ that this is not a virtual class, so calling methods from a Plugin* base
+ pointer will not work. Instead, anything that must dispatch on Plugin
+ methods takes a template parameter for static dispatch.
+
+ The destructor will be called when the host cleans up the plugin.
+*/
+template<class Derived>
+class Plugin
+{
+public:
+ /**
+ Instantiate the plugin.
+
+ Note that instance initialisation should generally occur in activate()
+ rather than here. If a host calls instantiate(), it MUST call cleanup()
+ at some point in the future.
+
+ @param sample_rate Sample rate, in Hz, for the new plugin instance.
+
+ @param bundle_path Path to the LV2 bundle which contains this plugin
+ binary. It MUST include the trailing directory separator (e.g. '/') so
+ that simply appending a filename will yield the path to that file in the
+ bundle.
+
+ @param features A NULL terminated array of LV2_Feature structs which
+ represent the features the host supports. Plugins may refuse to
+ instantiate if required features are not found here. However, hosts MUST
+ NOT use this as a discovery mechanism: instead, use the RDF data to
+ determine which features are required and do not attempt to instantiate
+ unsupported plugins at all. This parameter MUST NOT be NULL, i.e. a host
+ that supports no features MUST pass a single element array containing
+ NULL.
+
+ @param valid A pointer to a boolean that must be set to true if the
+ plugin instantiates correctly. The C++ wrappers will free the instance
+ and return NULL to the host automatically on failure.
+
+ @return A handle for the new plugin instance, or NULL if instantiation
+ has failed.
+ */
+ Plugin(double sample_rate,
+ const char* bundle_path,
+ const LV2_Feature*const* features,
+ bool* valid)
+ {}
+
+ /**
+ Connect a port on a plugin instance to a memory location.
+
+ Plugin writers should be aware that the host may elect to use the same
+ buffer for more than one port and even use the same buffer for both
+ input and output (see lv2:inPlaceBroken in lv2.ttl).
+
+ If the plugin has the feature lv2:hardRTCapable then there are various
+ things that the plugin MUST NOT do within the connect_port() function;
+ see lv2core.ttl for details.
+
+ connect_port() MUST be called at least once for each port before run()
+ is called, unless that port is lv2:connectionOptional. The plugin must
+ pay careful attention to the block size passed to run() since the block
+ allocated may only just be large enough to contain the data, and is not
+ guaranteed to remain constant between run() calls.
+
+ connect_port() may be called more than once for a plugin instance to
+ allow the host to change the buffers that the plugin is reading or
+ writing. These calls may be made before or after activate() or
+ deactivate() calls.
+
+ @param port Index of the port to connect. The host MUST NOT try to
+ connect a port index that is not defined in the plugin's RDF data. If
+ it does, the plugin's behaviour is undefined (a crash is likely).
+
+ @param data_location Pointer to data of the type defined by the port
+ type in the plugin's RDF data (e.g. an array of float for an
+ lv2:AudioPort). This pointer must be stored by the plugin instance and
+ used to read/write data when run() is called. Data present at the time
+ of the connect_port() call MUST NOT be considered meaningful.
+ */
+ void connect_port(uint32_t port, void* data_location) {}
+
+ /**
+ Initialise a plugin instance and activate it for use.
+
+ This is separated from instantiate() to aid real-time support and so
+ that hosts can reinitialise a plugin instance by calling deactivate()
+ and then activate(). In this case the plugin instance MUST reset all
+ state information dependent on the history of the plugin instance except
+ for any data locations provided by connect_port(). If there is nothing
+ for activate() to do then this field may be NULL.
+
+ When present, hosts MUST call this function once before run() is called
+ for the first time. This call SHOULD be made as close to the run() call
+ as possible and indicates to real-time plugins that they are now live,
+ however plugins MUST NOT rely on a prompt call to run() after
+ activate().
+
+ The host MUST NOT call activate() again until deactivate() has been
+ called first. If a host calls activate(), it MUST call deactivate() at
+ some point in the future. Note that connect_port() may be called before
+ or after activate().
+ */
+ void activate() {}
+
+ /**
+ Run a plugin instance for a block.
+
+ Note that if an activate() function exists then it must be called before
+ run(). If deactivate() is called for a plugin instance then run() may
+ not be called until activate() has been called again.
+
+ If the plugin has the feature lv2:hardRTCapable then there are various
+ things that the plugin MUST NOT do within the run() function (see
+ lv2core.ttl for details).
+
+ As a special case, when `sample_count` is 0, the plugin should update
+ any output ports that represent a single instant in time (e.g. control
+ ports, but not audio ports). This is particularly useful for latent
+ plugins, which should update their latency output port so hosts can
+ pre-roll plugins to compute latency. Plugins MUST NOT crash when
+ `sample_count` is 0.
+
+ @param sample_count The block size (in samples) for which the plugin
+ instance must run.
+ */
+ void run(uint32_t sample_count) {}
+
+ /**
+ Deactivate a plugin instance (counterpart to activate()).
+
+ Hosts MUST deactivate all activated instances after they have been run()
+ for the last time. This call SHOULD be made as close to the last run()
+ call as possible and indicates to real-time plugins that they are no
+ longer live, however plugins MUST NOT rely on prompt deactivation. If
+ there is nothing for deactivate() to do then this field may be NULL
+
+ Deactivation is not similar to pausing since the plugin instance will be
+ reinitialised by activate(). However, deactivate() itself MUST NOT fully
+ reset plugin state. For example, the host may deactivate a plugin, then
+ store its state (using some extension to do so).
+
+ Hosts MUST NOT call deactivate() unless activate() was previously
+ called. Note that connect_port() may be called before or after
+ deactivate().
+ */
+ void deactivate() {}
+
+ /**
+ Return additional plugin data defined by some extenion.
+
+ A typical use of this facility is to return a struct containing function
+ pointers to extend the LV2_Descriptor API.
+
+ The actual type and meaning of the returned object MUST be specified
+ precisely by the extension. This function MUST return NULL for any
+ unsupported URI. If a plugin does not support any extension data, this
+ field may be NULL.
+
+ The host is never responsible for freeing the returned value.
+ */
+ static const void* extension_data(const char* uri) { return NULL; }
+
+ /**
+ Get an LV2_Descriptor for a plugin class.
+
+ @code
+ static const LV2_Descriptor a = lv2::descriptor<Amp>("http://example.org/amp");
+ @endcode
+ */
+ static LV2_Descriptor descriptor(const char* uri) {
+ const LV2_Descriptor desc = { uri,
+ &s_instantiate,
+ &s_connect_port,
+ &s_activate,
+ &s_run,
+ &s_deactivate,
+ &s_cleanup,
+ &Plugin::extension_data };
+ return desc;
+ }
+
+private:
+ static LV2_Handle s_instantiate(const LV2_Descriptor* descriptor,
+ double rate,
+ const char* bundle,
+ const LV2_Feature* const* features) {
+ bool valid = true;
+ Derived* instance = new Derived(rate, bundle, features, &valid);
+ if (!valid) {
+ delete instance;
+ return nullptr;
+ }
+ return reinterpret_cast<LV2_Handle>(instance);
+ }
+
+ static void s_connect_port(LV2_Handle instance, uint32_t port, void* buf) {
+ reinterpret_cast<Derived*>(instance)->connect_port(port, buf);
+ }
+
+ static void s_activate(LV2_Handle instance) {
+ reinterpret_cast<Derived*>(instance)->activate();
+ }
+
+ static void s_run(LV2_Handle instance, uint32_t sample_count) {
+ reinterpret_cast<Derived*>(instance)->run(sample_count);
+ }
+
+ static void s_deactivate(LV2_Handle instance) {
+ reinterpret_cast<Derived*>(instance)->deactivate();
+ }
+
+ static void s_cleanup(LV2_Handle instance) {
+ delete reinterpret_cast<Derived*>(instance);
+ }
+};
+
+} /* namespace lv2 */
+
+#endif /* LV2_PLUGIN_HPP */
+
diff --git a/plugins/eg-midiamp.lv2/README.txt b/plugins/eg-midiamp.lv2/README.txt
new file mode 100644
index 0000000..8a02965
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/README.txt
@@ -0,0 +1,3 @@
+== MIDI Controlled Amplifier ==
+
+A MIDI controlled amplifier implemented in C++.
diff --git a/plugins/eg-midiamp.lv2/manifest.ttl.in b/plugins/eg-midiamp.lv2/manifest.ttl.in
new file mode 100644
index 0000000..a40ca8d
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/manifest.ttl.in
@@ -0,0 +1,7 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://lv2plug.in/plugins/eg-midiamp>
+ a lv2:Plugin ;
+ lv2:binary <midiamp@LIB_EXT@> ;
+ rdfs:seeAlso <midiamp.ttl> .
diff --git a/plugins/eg-midiamp.lv2/manifest.ttl.in~949f1baa9a283df26a7238c6bd4bb97272ae1192 b/plugins/eg-midiamp.lv2/manifest.ttl.in~949f1baa9a283df26a7238c6bd4bb97272ae1192
new file mode 100644
index 0000000..a40ca8d
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/manifest.ttl.in~949f1baa9a283df26a7238c6bd4bb97272ae1192
@@ -0,0 +1,7 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://lv2plug.in/plugins/eg-midiamp>
+ a lv2:Plugin ;
+ lv2:binary <midiamp@LIB_EXT@> ;
+ rdfs:seeAlso <midiamp.ttl> .
diff --git a/plugins/eg-midiamp.lv2/manifest.ttl.in~HEAD b/plugins/eg-midiamp.lv2/manifest.ttl.in~HEAD
new file mode 100644
index 0000000..a40ca8d
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/manifest.ttl.in~HEAD
@@ -0,0 +1,7 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+<http://lv2plug.in/plugins/eg-midiamp>
+ a lv2:Plugin ;
+ lv2:binary <midiamp@LIB_EXT@> ;
+ rdfs:seeAlso <midiamp.ttl> .
diff --git a/plugins/eg-midiamp.lv2/midiamp.cpp b/plugins/eg-midiamp.lv2/midiamp.cpp
new file mode 100644
index 0000000..2fff4e7
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/midiamp.cpp
@@ -0,0 +1,128 @@
+/*
+ Copyright 2015 David Robillard <d@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.
+*/
+
+#include <math.h>
+#include <stdlib.h>
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.hpp"
+#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.hpp"
+#include "lv2/lv2plug.in/ns/lv2core/Lib.hpp"
+#include "lv2/lv2plug.in/ns/lv2core/Plugin.hpp"
+
+/** MIDI-controlled amplifier. */
+class MidiAmp : public lv2::Plugin<MidiAmp> {
+public:
+ MidiAmp(double rate,
+ const char* bundle_path,
+ const LV2_Feature* const* features,
+ bool* valid)
+ : Plugin(rate, bundle_path, features, valid)
+ , m_map(features, valid)
+ , m_vol(1.0f)
+ {
+ if (!*valid) {
+ return;
+ }
+
+ midi_MidiEvent = m_map(LV2_MIDI__MidiEvent);
+ }
+
+ typedef enum {
+ AMP_CONTROL = 0,
+ AMP_INPUT = 1,
+ AMP_OUTPUT = 2
+ } PortIndex;
+
+ void connect_port(uint32_t port, void* data) {
+ switch ((PortIndex)port) {
+ case AMP_CONTROL:
+ m_ports.control = (const lv2::atom::Sequence*)data;
+ break;
+ case AMP_INPUT:
+ m_ports.input = (const float*)data;
+ break;
+ case AMP_OUTPUT:
+ m_ports.output = (float*)data;
+ break;
+ }
+ }
+
+ void run(const uint32_t n_samples) {
+ uint32_t offset = 0;
+ for (const lv2::atom::Event& ev : *m_ports.control) {
+ // Emit audio up to this event's time
+ for (uint32_t o = offset; o < ev.time.frames; ++o) {
+ m_ports.output[o] = m_ports.input[0] * m_vol;
+ }
+
+ // Process event
+ if (ev.type() == midi_MidiEvent) {
+ const uint8_t* const msg = (const uint8_t*)(&ev + 1);
+ if (lv2_midi_message_type(msg) == LV2_MIDI_MSG_CONTROLLER &&
+ msg[1] == LV2_MIDI_CTL_MSB_MAIN_VOLUME) {
+ m_vol = msg[2] / 127.0f;
+ }
+ }
+
+ offset = ev.time.frames;
+ }
+
+ // Emit remaining audio to the end of the block
+ for (uint32_t o = offset; o < n_samples; ++o) {
+ m_ports.output[o] = m_ports.input[0] * m_vol;
+ }
+ }
+
+private:
+ typedef struct {
+ const lv2::atom::Sequence* control;
+ const float* input;
+ float* output;
+ } Ports;
+
+ lv2::urid::Map<true> m_map;
+ lv2::urid::URID midi_MidiEvent;
+ Ports m_ports;
+ float m_vol;
+};
+
+/** Plugin library. */
+class MidiAmpLib : public lv2::Lib<MidiAmpLib>
+{
+public:
+ MidiAmpLib(const char* bundle_path,
+ const LV2_Feature*const* features)
+ : lv2::Lib<MidiAmpLib>(bundle_path, features)
+ , m_amp(MidiAmp::descriptor("http://lv2plug.in/plugins/eg-midiamp"))
+ {}
+
+ const LV2_Descriptor* get_plugin(uint32_t index) {
+ return index == 0 ? &m_amp : NULL;
+ }
+
+private:
+ LV2_Descriptor m_amp;
+};
+
+/** Library entry point. */
+LV2_SYMBOL_EXPORT const LV2_Lib_Descriptor*
+lv2_lib_descriptor(const char* bundle_path,
+ const LV2_Feature *const * features)
+
+{
+ return new MidiAmpLib(bundle_path, features);
+}
diff --git a/plugins/eg-midiamp.lv2/midiamp.ttl b/plugins/eg-midiamp.lv2/midiamp.ttl
new file mode 100644
index 0000000..2d985b2
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/midiamp.ttl
@@ -0,0 +1,35 @@
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
+
+<http://lv2plug.in/plugins/eg-midiamp>
+ a lv2:Plugin ,
+ lv2:AmplifierPlugin ;
+ lv2:project <http://lv2plug.in/ns/lv2> ;
+ doap:name "MIDI Controlled Amplifier" ;
+ doap:license <http://opensource.org/licenses/isc> ;
+ lv2:optionalFeature lv2:hardRTCapable ;
+ lv2:port [
+ a lv2:InputPort ,
+ atom:AtomPort ;
+ atom:bufferType atom:Sequence ;
+ atom:supports <http://lv2plug.in/ns/ext/midi#MidiEvent> ;
+ lv2:designation lv2:control ;
+ lv2:index 0 ;
+ lv2:symbol "control" ;
+ lv2:name "Control"
+ ] , [
+ a lv2:AudioPort ,
+ lv2:InputPort ;
+ lv2:index 1 ;
+ lv2:symbol "in" ;
+ lv2:name "In"
+ ] , [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 2 ;
+ lv2:symbol "out" ;
+ lv2:name "Out"
+ ] .
diff --git a/plugins/eg-midiamp.lv2/waf b/plugins/eg-midiamp.lv2/waf
new file mode 120000
index 0000000..59a1ac9
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/waf
@@ -0,0 +1 @@
+../../waf \ No newline at end of file
diff --git a/plugins/eg-midiamp.lv2/wscript b/plugins/eg-midiamp.lv2/wscript
new file mode 100644
index 0000000..af0ec06
--- /dev/null
+++ b/plugins/eg-midiamp.lv2/wscript
@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+from waflib.extras import autowaf as autowaf
+import re
+
+# Variables for 'waf dist'
+APPNAME = 'eg-midiamp.lv2'
+VERSION = '1.0.0'
+
+# Mandatory variables
+top = '.'
+out = 'build'
+
+def options(opt):
+ opt.load('compiler_cxx')
+ autowaf.set_options(opt)
+
+def configure(conf):
+ conf.load('compiler_cxx')
+ autowaf.configure(conf)
+ autowaf.set_c99_mode(conf)
+ autowaf.display_header('Midiamp Configuration')
+
+ if not autowaf.is_child():
+ autowaf.check_pkg(conf, 'lv2', uselib_store='LV2')
+
+ conf.check(features='cxx cxxshlib', lib='m', uselib_store='M', mandatory=False)
+
+ autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
+ print('')
+
+def build(bld):
+ bundle = 'eg-midiamp.lv2'
+
+ # Make a pattern for shared objects without the 'lib' prefix
+ module_pat = re.sub('^lib', '', bld.env.cshlib_PATTERN)
+ module_ext = module_pat[module_pat.rfind('.'):]
+
+ # Build manifest.ttl by substitution (for portable lib extension)
+ bld(features = 'subst',
+ source = 'manifest.ttl.in',
+ target = '%s/%s' % (bundle, 'manifest.ttl'),
+ install_path = '${LV2DIR}/%s' % bundle,
+ LIB_EXT = module_ext)
+
+ # Copy other data files to build bundle (build/eg-midiamp.lv2)
+ for i in ['midiamp.ttl']:
+ bld(features = 'subst',
+ is_copy = True,
+ source = i,
+ target = '%s/%s' % (bundle, i),
+ install_path = '${LV2DIR}/%s' % bundle)
+
+ # Use LV2 headers from parent directory if building as a sub-project
+ includes = None
+ if autowaf.is_child:
+ includes = '../..'
+
+ # Build plugin library
+ obj = bld(features = 'cxx cxxshlib',
+ source = 'midiamp.cpp',
+ name = 'midiamp',
+ target = '%s/midiamp' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle,
+ uselib = 'M LV2',
+ includes = includes)
+ obj.env.cxxshlib_PATTERN = module_pat
diff --git a/plugins/wscript b/plugins/wscript
index f5f6571..94269e4 100644
--- a/plugins/wscript
+++ b/plugins/wscript
@@ -31,6 +31,14 @@ def build(bld):
files += bld.path.ant_glob('%s/*.c' % i)
files += bld.path.ant_glob('%s/*.h' % i)
+ if bld.env.BUILD_CXX:
+ for i in ['eg-midiamp.lv2']:
+ print i
+ files += bld.path.ant_glob('%s/*.txt' % i)
+ files += bld.path.ant_glob('%s/manifest.ttl*' % i)
+ files += bld.path.ant_glob('%s/*.ttl' % i)
+ files += bld.path.ant_glob('%s/*.cpp' % i)
+
# Compile book sources into book.txt asciidoc source
bld(rule = bld_book_src,
source = files,
diff --git a/wscript b/wscript
index 4e1a7b5..ef3b586 100644
--- a/wscript
+++ b/wscript
@@ -23,6 +23,7 @@ out = 'build'
def options(opt):
opt.load('compiler_c')
+ opt.load('compiler_cxx')
opt.load('lv2')
autowaf.set_options(opt, False, True)
opt.add_option('--test', action='store_true', dest='build_tests',
@@ -40,6 +41,7 @@ def options(opt):
def configure(conf):
try:
conf.load('compiler_c')
+ conf.load('compiler_cxx')
except:
Options.options.build_tests = False
Options.options.no_plugins = True
@@ -47,6 +49,8 @@ def configure(conf):
conf.load('lv2')
autowaf.configure(conf)
autowaf.set_c99_mode(conf)
+ conf.check_cxx(cxxflags=["-std=c++0x"])
+ conf.env.append_unique('CXXFLAGS', ['-std=c++0x'])
if Options.options.online_docs:
Options.options.docs = True