From b91e1a81db7b45d0460da1c8a134d855e0ff265c Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 11 Feb 2013 00:18:55 +0000
Subject: Order examples in a sensible progression for the book.
---
plugins/eg-amp.lv2/README.txt | 21 --
plugins/eg-amp.lv2/amp.c | 225 --------------
plugins/eg-amp.lv2/amp.ttl | 77 -----
plugins/eg-amp.lv2/manifest.ttl.in | 101 ------
plugins/eg-amp.lv2/waf | 1 -
plugins/eg-amp.lv2/wscript | 67 ----
plugins/eg-metro.lv2/README.txt | 9 -
plugins/eg-metro.lv2/manifest.ttl.in | 7 -
plugins/eg-metro.lv2/metro.c | 347 ---------------------
plugins/eg-metro.lv2/metro.ttl | 39 ---
plugins/eg-metro.lv2/waf | 1 -
plugins/eg-metro.lv2/wscript | 64 ----
plugins/eg-midigate.lv2/README.txt | 10 -
plugins/eg-midigate.lv2/manifest.ttl.in | 10 -
plugins/eg-midigate.lv2/midigate.c | 223 -------------
plugins/eg-midigate.lv2/midigate.ttl | 80 -----
plugins/eg-midigate.lv2/waf | 1 -
plugins/eg-midigate.lv2/wscript | 65 ----
plugins/eg-sampler.lv2/README.txt | 1 -
plugins/eg-sampler.lv2/click.wav | Bin 644 -> 0 bytes
plugins/eg-sampler.lv2/manifest.ttl.in | 13 -
plugins/eg-sampler.lv2/sampler.c | 498 ------------------------------
plugins/eg-sampler.lv2/sampler.ttl | 83 -----
plugins/eg-sampler.lv2/sampler_ui.c | 201 ------------
plugins/eg-sampler.lv2/uris.h | 142 ---------
plugins/eg-sampler.lv2/waf | 1 -
plugins/eg-sampler.lv2/wscript | 80 -----
plugins/eg-synth.lv2/manifest.ttl.in | 9 -
plugins/eg-synth.lv2/synth.c | 171 ----------
plugins/eg-synth.lv2/synth.ttl | 44 ---
plugins/eg-synth.lv2/waf | 1 -
plugins/eg-synth.lv2/wscript | 64 ----
plugins/eg01-amp.lv2/README.txt | 21 ++
plugins/eg01-amp.lv2/amp.c | 225 ++++++++++++++
plugins/eg01-amp.lv2/amp.ttl | 86 ++++++
plugins/eg01-amp.lv2/manifest.ttl.in | 101 ++++++
plugins/eg01-amp.lv2/waf | 1 +
plugins/eg01-amp.lv2/wscript | 67 ++++
plugins/eg02-midigate.lv2/README.txt | 10 +
plugins/eg02-midigate.lv2/manifest.ttl.in | 10 +
plugins/eg02-midigate.lv2/midigate.c | 223 +++++++++++++
plugins/eg02-midigate.lv2/midigate.ttl | 80 +++++
plugins/eg02-midigate.lv2/waf | 1 +
plugins/eg02-midigate.lv2/wscript | 65 ++++
plugins/eg03-metro.lv2/README.txt | 9 +
plugins/eg03-metro.lv2/manifest.ttl.in | 7 +
plugins/eg03-metro.lv2/metro.c | 345 +++++++++++++++++++++
plugins/eg03-metro.lv2/metro.ttl | 39 +++
plugins/eg03-metro.lv2/waf | 1 +
plugins/eg03-metro.lv2/wscript | 64 ++++
plugins/eg04-sampler.lv2/README.txt | 1 +
plugins/eg04-sampler.lv2/click.wav | Bin 0 -> 644 bytes
plugins/eg04-sampler.lv2/manifest.ttl.in | 13 +
plugins/eg04-sampler.lv2/sampler.c | 498 ++++++++++++++++++++++++++++++
plugins/eg04-sampler.lv2/sampler.ttl | 83 +++++
plugins/eg04-sampler.lv2/sampler_ui.c | 201 ++++++++++++
plugins/eg04-sampler.lv2/uris.h | 142 +++++++++
plugins/eg04-sampler.lv2/waf | 1 +
plugins/eg04-sampler.lv2/wscript | 80 +++++
59 files changed, 2374 insertions(+), 2656 deletions(-)
delete mode 100644 plugins/eg-amp.lv2/README.txt
delete mode 100644 plugins/eg-amp.lv2/amp.c
delete mode 100644 plugins/eg-amp.lv2/amp.ttl
delete mode 100644 plugins/eg-amp.lv2/manifest.ttl.in
delete mode 120000 plugins/eg-amp.lv2/waf
delete mode 100644 plugins/eg-amp.lv2/wscript
delete mode 100644 plugins/eg-metro.lv2/README.txt
delete mode 100644 plugins/eg-metro.lv2/manifest.ttl.in
delete mode 100644 plugins/eg-metro.lv2/metro.c
delete mode 100644 plugins/eg-metro.lv2/metro.ttl
delete mode 120000 plugins/eg-metro.lv2/waf
delete mode 100644 plugins/eg-metro.lv2/wscript
delete mode 100644 plugins/eg-midigate.lv2/README.txt
delete mode 100644 plugins/eg-midigate.lv2/manifest.ttl.in
delete mode 100644 plugins/eg-midigate.lv2/midigate.c
delete mode 100644 plugins/eg-midigate.lv2/midigate.ttl
delete mode 120000 plugins/eg-midigate.lv2/waf
delete mode 100644 plugins/eg-midigate.lv2/wscript
delete mode 100644 plugins/eg-sampler.lv2/README.txt
delete mode 100644 plugins/eg-sampler.lv2/click.wav
delete mode 100644 plugins/eg-sampler.lv2/manifest.ttl.in
delete mode 100644 plugins/eg-sampler.lv2/sampler.c
delete mode 100644 plugins/eg-sampler.lv2/sampler.ttl
delete mode 100644 plugins/eg-sampler.lv2/sampler_ui.c
delete mode 100644 plugins/eg-sampler.lv2/uris.h
delete mode 120000 plugins/eg-sampler.lv2/waf
delete mode 100644 plugins/eg-sampler.lv2/wscript
delete mode 100644 plugins/eg-synth.lv2/manifest.ttl.in
delete mode 100644 plugins/eg-synth.lv2/synth.c
delete mode 100644 plugins/eg-synth.lv2/synth.ttl
delete mode 120000 plugins/eg-synth.lv2/waf
delete mode 100644 plugins/eg-synth.lv2/wscript
create mode 100644 plugins/eg01-amp.lv2/README.txt
create mode 100644 plugins/eg01-amp.lv2/amp.c
create mode 100644 plugins/eg01-amp.lv2/amp.ttl
create mode 100644 plugins/eg01-amp.lv2/manifest.ttl.in
create mode 120000 plugins/eg01-amp.lv2/waf
create mode 100644 plugins/eg01-amp.lv2/wscript
create mode 100644 plugins/eg02-midigate.lv2/README.txt
create mode 100644 plugins/eg02-midigate.lv2/manifest.ttl.in
create mode 100644 plugins/eg02-midigate.lv2/midigate.c
create mode 100644 plugins/eg02-midigate.lv2/midigate.ttl
create mode 120000 plugins/eg02-midigate.lv2/waf
create mode 100644 plugins/eg02-midigate.lv2/wscript
create mode 100644 plugins/eg03-metro.lv2/README.txt
create mode 100644 plugins/eg03-metro.lv2/manifest.ttl.in
create mode 100644 plugins/eg03-metro.lv2/metro.c
create mode 100644 plugins/eg03-metro.lv2/metro.ttl
create mode 120000 plugins/eg03-metro.lv2/waf
create mode 100644 plugins/eg03-metro.lv2/wscript
create mode 100644 plugins/eg04-sampler.lv2/README.txt
create mode 100644 plugins/eg04-sampler.lv2/click.wav
create mode 100644 plugins/eg04-sampler.lv2/manifest.ttl.in
create mode 100644 plugins/eg04-sampler.lv2/sampler.c
create mode 100644 plugins/eg04-sampler.lv2/sampler.ttl
create mode 100644 plugins/eg04-sampler.lv2/sampler_ui.c
create mode 100644 plugins/eg04-sampler.lv2/uris.h
create mode 120000 plugins/eg04-sampler.lv2/waf
create mode 100644 plugins/eg04-sampler.lv2/wscript
(limited to 'plugins')
diff --git a/plugins/eg-amp.lv2/README.txt b/plugins/eg-amp.lv2/README.txt
deleted file mode 100644
index c2ab37d..0000000
--- a/plugins/eg-amp.lv2/README.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-== Simple Amplifier ==
-
-This plugin is a simple example of a basic LV2 plugin with no additional features.
-It has audio ports which contain an array of `float`,
-and control ports which contain a single `float`.
-
-LV2 plugins are defined in two parts: code and data.
-The code is written in C (or any C compatible language, such as C++) and defines the executable portions of the plugin.
-Static data is described separately in human and machine readable files in the http://www.w3.org/TeamSubmission/turtle/[Turtle] syntax.
-Turtle is a syntax for the RDF data model,
-but familiarity with RDF is not required to understand this documentation.
-
-Generally, code is kept minimal,
-and all static information is described in the data.
-There are several advantages to this approach:
-
- * Hosts can discover and inspect plugins without loading or executing any plugin code
- * It is simple to work with plugin data using scripting languages, command line tools, etc.
- * A standard format allows the re-use of existing vocabularies to describe plugins
- * The data inherently integrates with the web, databases, etc.
- * Labels and documentation are translatable, and available to hosts for display in user interfaces
diff --git a/plugins/eg-amp.lv2/amp.c b/plugins/eg-amp.lv2/amp.c
deleted file mode 100644
index 8dd7b4f..0000000
--- a/plugins/eg-amp.lv2/amp.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- Copyright 2006-2011 David Robillard <d@drobilla.net>
- Copyright 2006 Steve Harris <steve@plugin.org.uk>
-
- 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 standard C headers */
-#include <math.h>
-#include <stdlib.h>
-
-/**
- LV2 headers are based on the URI of the specification they come from, so a
- consistent convention can be used even for unofficial extensions. The URI
- of the core LV2 specification is <http://lv2plug.in/ns/lv2core>, by
- replacing `http:/` with `lv2` any header in the specification bundle can be
- included, in this case `lv2.h`.
-*/
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-
-/**
- The URI is the identifier for a plugin, and how the host associates this
- implementation in code with its description in data. In this plugin it is
- only used once in the code, but defining the plugin URI at the top of the
- file is a good convention to follow. If this URI does not match that used
- in the data files, the host will fail to load the plugin.
-*/
-#define AMP_URI "http://lv2plug.in/plugins/eg-amp"
-
-/**
- In code, ports are referred to by index. An enumeration of port indices
- should be defined for readability.
-*/
-typedef enum {
- AMP_GAIN = 0,
- AMP_INPUT = 1,
- AMP_OUTPUT = 2
-} PortIndex;
-
-/**
- Every plugin defines a private structure for the plugin instance. All data
- associated with a plugin instance is stored here, and is available to
- every instance method. In this simple plugin, only port buffers need to be
- stored, since there is no additional instance data. */
-typedef struct {
- // Port buffers
- const float* gain;
- const float* input;
- float* output;
-} Amp;
-
-/**
- The instantiate() function is called by the host to create a new plugin
- instance. The host passes the plugin descriptor, sample rate, and bundle
- path for plugins that need to load additional resources (e.g. waveforms).
- The features parameter contains host-provided features defined in LV2
- extensions, but this simple plugin does not use any.
-
- This function is in the ``instantiation'' threading class, so no other
- methods on this instance will be called concurrently with it.
-*/
-static LV2_Handle
-instantiate(const LV2_Descriptor* descriptor,
- double rate,
- const char* bundle_path,
- const LV2_Feature* const* features)
-{
- Amp* amp = (Amp*)malloc(sizeof(Amp));
-
- return (LV2_Handle)amp;
-}
-
-/**
- The connect_port() method is called by the host to connect a particular port
- to a buffer. The plugin must store the data location, but data may not be
- accessed except in run().
-
- This method is in the ``audio'' threading class, and is called in the same
- context as run().
-*/
-static void
-connect_port(LV2_Handle instance,
- uint32_t port,
- void* data)
-{
- Amp* amp = (Amp*)instance;
-
- switch ((PortIndex)port) {
- case AMP_GAIN:
- amp->gain = (const float*)data;
- break;
- case AMP_INPUT:
- amp->input = (const float*)data;
- break;
- case AMP_OUTPUT:
- amp->output = (float*)data;
- break;
- }
-}
-
-/**
- The activate() method is called by the host to initialise and prepare the
- plugin instance for running. The plugin must reset all internal state
- except for buffer locations set by connect_port(). Since this plugin has
- no other internal state, this method does nothing.
-
- This method is in the ``instantiation'' threading class, so no other
- methods on this instance will be called concurrently with it.
-*/
-static void
-activate(LV2_Handle instance)
-{
-}
-
-/** Define a macro for converting a gain in dB to a coefficient */
-#define DB_CO(g) ((g) > -90.0f ? powf(10.0f, (g) * 0.05f) : 0.0f)
-
-/** Process a block of audio (audio thread, must be RT safe). */
-static void
-run(LV2_Handle instance, uint32_t n_samples)
-{
- const Amp* amp = (const Amp*)instance;
-
- const float gain = *(amp->gain);
- const float* const input = amp->input;
- float* const output = amp->output;
-
- const float coef = DB_CO(gain);
-
- for (uint32_t pos = 0; pos < n_samples; pos++) {
- output[pos] = input[pos] * coef;
- }
-}
-
-/**
- The deactivate() method is the counterpart to activate() called by the host
- after running the plugin. It indicates that the host will not call run()
- again until another call to activate() and is mainly useful for more
- advanced plugins with ``live'' characteristics such as those with auxiliary
- processing threads. As with activate(), this plugin has no use for this
- information so this method does nothing.
-
- This method is in the ``instantiation'' threading class, so no other
- methods on this instance will be called concurrently with it.
-*/
-static void
-deactivate(LV2_Handle instance)
-{
-}
-
-/**
- Destroy a plugin instance (counterpart to instantiate()).
-
- This method is in the ``instantiation'' threading class, so no other
- methods on this instance will be called concurrently with it.
-*/
-static void
-cleanup(LV2_Handle instance)
-{
- free(instance);
-}
-
-/**
- The extension_data function returns any extension data supported by the
- plugin. Note that this is not an instance method, but a function on the
- plugin descriptor. It is usually used by plugins to implement additional
- interfaces. This plugin does not have any extension data, so this function
- returns NULL.
-
- This method is in the ``discovery'' threading class, so no other functions
- or methods in this plugin library will be called concurrently with it.
-*/
-static const void*
-extension_data(const char* uri)
-{
- return NULL;
-}
-
-/**
- Define the LV2_Descriptor for this plugin. It is best to define descriptors
- statically to avoid leaking memory and non-portable shared library
- constructors and destructors to clean up properly.
-*/
-static const LV2_Descriptor descriptor = {
- AMP_URI,
- instantiate,
- connect_port,
- activate,
- run,
- deactivate,
- cleanup,
- extension_data
-};
-
-/**
- The lv2_descriptor() function is the entry point to the plugin library. The
- host will load the library and call this function repeatedly with increasing
- indices to find all the plugins defined in the library. The index is not an
- indentifier, the URI of the returned descriptor is used to determine the
- identify of the plugin.
-
- This method is in the ``discovery'' threading class, so no other functions
- or methods in this plugin library will be called concurrently with it.
-*/
-LV2_SYMBOL_EXPORT
-const LV2_Descriptor*
-lv2_descriptor(uint32_t index)
-{
- switch (index) {
- case 0:
- return &descriptor;
- default:
- return NULL;
- }
-}
diff --git a/plugins/eg-amp.lv2/amp.ttl b/plugins/eg-amp.lv2/amp.ttl
deleted file mode 100644
index 25e4320..0000000
--- a/plugins/eg-amp.lv2/amp.ttl
+++ /dev/null
@@ -1,77 +0,0 @@
-@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#> .
-
-<http://lv2plug.in/plugins/eg-amp>
- a lv2:Plugin ,
- lv2:AmplifierPlugin ;
-# Plugins are associated with a project, where common information like
-# developers, home page, and so on are described. This plugin is part of the
-# LV2 project, which has URI <http://lv2plug.in/ns/lv2>, and is described
-# elsewhere. Typical plugin collections will describe the project in
-# manifest.ttl
- lv2:project <http://lv2plug.in/ns/lv2> ;
-# Every plugin must have a name, described with the doap:name property.
-# Translations to various languages can be added by putting a language tag
-# after strings as shown.
- doap:name "Simple Amplifier" ,
- "简单放大器"@ch ,
- "Einfacher Verstärker"@de ,
- "Simple Amp"@en-gb ,
- "Amplificador Simple"@es ,
- "Amplificateur de Base"@fr ,
- "Amplificatore Semplice"@it ,
- "簡単なアンプ"@jp ,
- "Просто Усилитель"@ru ;
- doap:license <http://opensource.org/licenses/isc> ;
- lv2:optionalFeature lv2:hardRTCapable ;
- lv2:port [
-# Every port must have at least two types, one that specifies direction
-# (lv2:InputPort or lv2:OutputPort), and another to describe the data type.
-# This port is a lv2:ControlPort, which means it contains a single float.
- a lv2:InputPort ,
- lv2:ControlPort ;
- lv2:index 0 ;
- lv2:symbol "gain" ;
- lv2:name "Gain" ,
- "收益"@ch ,
- "Gewinn"@de ,
- "Gain"@en-gb ,
- "Aumento"@es ,
- "Gain"@fr ,
- "Guadagno"@it ,
- "利益"@jp ,
- "Увеличение"@ru ;
-# An lv2:ControlPort should always describe its default value, and usually a
-# minimum and maximum value. Defining a range is not strictly required, but
-# should be done wherever possible to aid host support, particularly for UIs.
- lv2:default 0.0 ;
- lv2:minimum -90.0 ;
- lv2:maximum 24.0 ;
- lv2:scalePoint [
- rdfs:label "+5" ;
- rdf:value 5.0
- ] , [
- rdfs:label "0" ;
- rdf:value 0.0
- ] , [
- rdfs:label "-5" ;
- rdf:value -5.0
- ] , [
- rdfs:label "-10" ;
- rdf:value -10.0
- ]
- ] , [
- 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-amp.lv2/manifest.ttl.in b/plugins/eg-amp.lv2/manifest.ttl.in
deleted file mode 100644
index 51f4a79..0000000
--- a/plugins/eg-amp.lv2/manifest.ttl.in
+++ /dev/null
@@ -1,101 +0,0 @@
-# LV2 Bundle Manifest
-#
-# All LV2 plugins are installed as "bundles", a directory with a particular
-# format. Inside the bundle, the entry point is a file called "manifest.ttl".
-# This file lists what plugins are in this bundle, and which files are (.so,
-# .ttl, etc.) are associated with those plugins.
-#
-# Hosts read bundles' manifest.ttl to discover what plugins (and other
-# resources) are available. Manifest files should be as small as possible for
-# performance reasons.
-#
-#
-# ==== Namespace Prefixes ====
-#
-# Turtle files often contain many URIs. To make this more readable, prefixes
-# can be defined. For example, with the `lv2:` prefix below, instead of
-# <http://lv2plug.in/ns/lv2core#Plugin> the shorter form `lv2:Plugin` can be
-# used. This is just a shorthand for URIs within a file, the prefixes are not
-# significant otherwise.
-
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-
-# ==== Data ====
-
-<http://lv2plug.in/plugins/eg-amp>
- a lv2:Plugin ;
- lv2:binary <amp@LIB_EXT@> ;
- rdfs:seeAlso <amp.ttl> .
-
-# The token `@LIB_EXT@` above is replaced by the build system with the
-# appropriate extension for the current platform (e.g. .so, .dylib, .dll).
-# This file is called called `manifest.ttl.in` rather than `manifest.ttl`
-# to indicate that it is not the final file to be installed.
-# This is not necessary, but is a good idea for portable plugins.
-# For reability, the text will assume `.so` is the extension used.
-#
-# In short, this declares that the resource with URI
-# "http://lv2plug.in/plugins/eg-amp" is an LV2 plugin, with executable code in
-# the file "amp.so" and a full description in "amp.ttl". These paths are
-# relative to the bundle directory.
-#
-# There are 3 statements in this description:
-# |================================================================
-# | Subject | Predicate | Object
-# | <http://lv2plug.in/plugins/eg-amp> | a | lv2:Plugin
-# | <http://lv2plug.in/plugins/eg-amp> | lv2:binary | <amp.so>
-# | <http://lv2plug.in/plugins/eg-amp> | rdfs:seeAlso | <amp.ttl>
-# |================================================================
-#
-# The semicolon is used to continue the previous subject; an equivalent
-# but more verbose syntax for the same data is:
-
-<http://lv2plug.in/plugins/eg-amp> a lv2:Plugin .
-<http://lv2plug.in/plugins/eg-amp> lv2:binary <amp.so> .
-<http://lv2plug.in/plugins/eg-amp> rdfs:seeAlso <amp.ttl> .
-
-# (Since this data is equivalent, it is safe, if pointless, to list it twice)
-#
-# Note that the documentation for a URI can often be found by visiting that URI
-# in a web browser, e.g. the documentation for lv2:binary can be found at
-# <http://lv2plug.in/ns/lv2core#binary>. If you encounter a URI in some data
-# which you do not understand, try this first.
-#
-# Note the URI of a plugin does NOT need to be an actual web address, it's just
-# a global identifier. It is, however, a good idea to use an actual web
-# address if possible, since it can be used to easily access documentation,
-# downloads, etc. Note there are compatibility rules for when the URI of a
-# plugin must be changed, see the http://lv2plug.in/ns/lv2core[LV2 specification]
-# for details.
-#
-# AUTHORS MUST NOT CREATE URIS AT DOMAINS THEY DO NOT CONTROL WITHOUT
-# PERMISSION, AND *ESPECIALLY* MUST NOT CREATE SYNTACTICALLY INVALID URIS,
-# E.G. WHERE THE PORTION FOLLOWING "http://" IS NOT AN ACTUAL DOMAIN NAME. If
-# you need an example URI, the domain http://example.org/ is reserved for this
-# purpose. It is best to use web URIs, e.g. at the domain where plugins are
-# hosted for download, even if there is currently no documents hosted there.
-# If this is truly impossible, use a URN, e.g. urn:myplugs:superamp.
-#
-# A detailed explanation of each statement follows.
-
-<http://lv2plug.in/plugins/eg-amp> a lv2:Plugin .
-
-# The `a` is a Turtle shortcut for rdf:type and more or less means ``is a''.
-# `lv2:Plugin` expands to <http://lv2plug.in/ns/lv2core#Plugin> (using the
-# `lv2:` prefix above) which is the type of all LV2 plugins.
-# This statement means ``<http://lv2plug.in/plugins/eg-amp> is an LV2 plugin''.
-
-<http://lv2plug.in/plugins/eg-amp> lv2:binary <amp@LIB_EXT@> .
-
-# This says "this plugin has executable code ("binary") in the file
-# named "amp.so", which is located in this bundle. The LV2 specification
-# defines that all relative URIs in manifest files are relative to the bundle
-# directory, so this refers to the file amp.so in the same directory as this
-# manifest.ttl file.
-
-<http://lv2plug.in/plugins/eg-amp> rdfs:seeAlso <amp.ttl> .
-
-# This says ``there is more information about this plugin located in the file
-# `amp.ttl`''. The host will look at all such files when it needs to actually
-# use or investigate the plugin.
diff --git a/plugins/eg-amp.lv2/waf b/plugins/eg-amp.lv2/waf
deleted file mode 120000
index 59a1ac9..0000000
--- a/plugins/eg-amp.lv2/waf
+++ /dev/null
@@ -1 +0,0 @@
-../../waf
\ No newline at end of file
diff --git a/plugins/eg-amp.lv2/wscript b/plugins/eg-amp.lv2/wscript
deleted file mode 100644
index d4295ff..0000000
--- a/plugins/eg-amp.lv2/wscript
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/usr/bin/env python
-from waflib.extras import autowaf as autowaf
-import re
-
-# Variables for 'waf dist'
-APPNAME = 'eg-amp.lv2'
-VERSION = '1.0.0'
-
-# Mandatory variables
-top = '.'
-out = 'build'
-
-def options(opt):
- opt.load('compiler_c')
- autowaf.set_options(opt)
-
-def configure(conf):
- conf.load('compiler_c')
- autowaf.configure(conf)
- autowaf.set_c99_mode(conf)
- autowaf.display_header('Amp Configuration')
-
- if not autowaf.is_child():
- autowaf.check_pkg(conf, 'lv2', uselib_store='LV2')
-
- conf.check(features='c cprogram', lib='m', uselib_store='M', mandatory=False)
-
- autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
- print('')
-
-def build(bld):
- bundle = 'eg-amp.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 = '${LV2DIR}/%s' % bundle,
- LIB_EXT = module_ext)
-
- # Copy other data files to build bundle (build/eg-amp.lv2)
- for i in ['amp.ttl']:
- bld(features = 'subst',
- is_copy = True,
- source = i,
- target = '%s/%s' % (bundle, i),
- install_path = '${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 = 'c cshlib',
- source = 'amp.c',
- name = 'amp',
- target = '%s/amp' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- uselib = 'M LV2',
- includes = includes)
- obj.env.cshlib_PATTERN = module_pat
-
diff --git a/plugins/eg-metro.lv2/README.txt b/plugins/eg-metro.lv2/README.txt
deleted file mode 100644
index 5e9a84a..0000000
--- a/plugins/eg-metro.lv2/README.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-== Metronome ==
-
-This plugin demonstrates tempo synchronisation by clicking on every beat. The
-host sends this information to the plugin as events, so an event with new time
-and tempo information will be received whenever there is a change.
-
-Time is assumed to continue rolling at the tempo and speed defined by the last
-received tempo event, even across cycles, until a new tempo event is received
-or the plugin is deactivated.
diff --git a/plugins/eg-metro.lv2/manifest.ttl.in b/plugins/eg-metro.lv2/manifest.ttl.in
deleted file mode 100644
index bd93f66..0000000
--- a/plugins/eg-metro.lv2/manifest.ttl.in
+++ /dev/null
@@ -1,7 +0,0 @@
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-
-<http://lv2plug.in/plugins/eg-metro>
- a lv2:Plugin ;
- lv2:binary <metro@LIB_EXT@> ;
- rdfs:seeAlso <metro.ttl> .
diff --git a/plugins/eg-metro.lv2/metro.c b/plugins/eg-metro.lv2/metro.c
deleted file mode 100644
index 97821a1..0000000
--- a/plugins/eg-metro.lv2/metro.c
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- LV2 Metronome Example Plugin
- Copyright 2012 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 <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#ifndef __cplusplus
-# include <stdbool.h>
-#endif
-
-#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
-#include "lv2/lv2plug.in/ns/ext/atom/util.h"
-#include "lv2/lv2plug.in/ns/ext/time/time.h"
-#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-
-#ifndef M_PI
-# define M_PI 3.14159265
-#endif
-
-#define EG_METRO_URI "http://lv2plug.in/plugins/eg-metro"
-
-typedef struct {
- LV2_URID atom_Blank;
- LV2_URID atom_Float;
- LV2_URID atom_Path;
- LV2_URID atom_Resource;
- LV2_URID atom_Sequence;
- LV2_URID time_Position;
- LV2_URID time_barBeat;
- LV2_URID time_beatsPerMinute;
- LV2_URID time_speed;
-} MetroURIs;
-
-static const double attack_s = 0.005;
-static const double decay_s = 0.075;
-
-enum {
- METRO_CONTROL = 0,
- METRO_NOTIFY = 1,
- METRO_OUT = 2
-};
-
-typedef enum {
- STATE_ATTACK,
- STATE_DECAY,
- STATE_OFF
-} State;
-
-typedef struct {
- /* Features */
- LV2_URID_Map* map;
-
- /* URIs */
- MetroURIs uris;
-
- /* Ports */
- struct {
- LV2_Atom_Sequence* control;
- LV2_Atom_Sequence* notify;
- float* output;
- } ports;
-
- /** The rate, bpm, and speed are the basic information sent by the host. */
- double rate;
- float bpm;
- float speed;
-
- /** To keep track of when to play the next click, we need to keep track of
- a few pieces of information: */
-
- /** - The frames since the start of the last click is stored */
- uint32_t elapsed_len;
-
- /** - The current play offset in the wave */
- uint32_t wave_offset;
-
- /** - The current play state (attack, decay, or off) */
- State state;
-
- /** The wave to play is a simple sine wave generated at instantiation time
- based on the sample rate. The length in frames is stored in order to
- continuously play the wave in a cycle to avoid discontinuity clicks. */
- float* wave;
- uint32_t wave_len;
-
- /** The continuously playing sine wave is enveloped to provide an actual
- metronome tick. This plugin uses a simple AD envelope with fixed
- parameters. A more sophisticated implementation might use a more
- advanced envelope and allow the user to modify these parameters. */
- uint32_t attack_len;
- uint32_t decay_len;
-} Metro;
-
-static void
-connect_port(LV2_Handle instance,
- uint32_t port,
- void* data)
-{
- Metro* self = (Metro*)instance;
-
- switch (port) {
- case METRO_CONTROL:
- self->ports.control = (LV2_Atom_Sequence*)data;
- break;
- case METRO_NOTIFY:
- self->ports.notify = (LV2_Atom_Sequence*)data;
- break;
- case METRO_OUT:
- self->ports.output = (float*)data;
- break;
- default:
- break;
- }
-}
-
-static void
-activate(LV2_Handle instance)
-{
- Metro* self = (Metro*)instance;
-
- self->elapsed_len = 0;
- self->wave_offset = 0;
- self->state = STATE_OFF;
-}
-
-static LV2_Handle
-instantiate(const LV2_Descriptor* descriptor,
- double rate,
- const char* path,
- const LV2_Feature* const* features)
-{
- Metro* self = (Metro*)calloc(1, sizeof(Metro));
- if (!self) {
- return NULL;
- }
-
- /** Scan host features for URID map */
- LV2_URID_Map* map = NULL;
- for (int i = 0; features[i]; ++i) {
- if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
- map = (LV2_URID_Map*)features[i]->data;
- }
- }
- if (!map) {
- fprintf(stderr, "Host does not support urid:map.\n");
- free(self);
- return NULL;
- }
-
- /** Map URIS */
- MetroURIs* const uris = &self->uris;
- self->map = map;
- uris->atom_Blank = map->map(map->handle, LV2_ATOM__Blank);
- uris->atom_Float = map->map(map->handle, LV2_ATOM__Float);
- uris->atom_Path = map->map(map->handle, LV2_ATOM__Path);
- uris->atom_Resource = map->map(map->handle, LV2_ATOM__Resource);
- uris->atom_Sequence = map->map(map->handle, LV2_ATOM__Sequence);
- uris->time_Position = map->map(map->handle, LV2_TIME__Position);
- uris->time_barBeat = map->map(map->handle, LV2_TIME__barBeat);
- uris->time_beatsPerMinute = map->map(map->handle, LV2_TIME__beatsPerMinute);
- uris->time_speed = map->map(map->handle, LV2_TIME__speed);
-
- /** Initialise fields */
- self->rate = rate;
- self->bpm = 120.0f;
- self->attack_len = attack_s * rate;
- self->decay_len = decay_s * rate;
- self->state = STATE_OFF;
-
- /** Generate one cycle of a sine wave at the desired frequency. */
- const double freq = 440.0 * 2.0;
- const double amp = 0.5;
- self->wave_len = rate / freq;
- self->wave = (float*)malloc(self->wave_len * sizeof(float));
- for (uint32_t i = 0; i < self->wave_len; ++i) {
- self->wave[i] = sin(i * 2 * M_PI * freq / rate) * amp;
- }
-
- return (LV2_Handle)self;
-}
-
-static void
-cleanup(LV2_Handle instance)
-{
- free(instance);
-}
-
-static void
-play(Metro* self, uint32_t begin, uint32_t end)
-{
- float* const output = self->ports.output;
- const uint32_t frames_per_beat = 60.0f / self->bpm * self->rate;
-
- if (self->speed == 0.0f) {
- memset(output, 0, (end - begin) * sizeof(float));
- return;
- }
-
- for (uint32_t i = begin; i < end; ++i) {
- switch (self->state) {
- case STATE_ATTACK:
- /** Amplitude increases from 0..1 until attack_len */
- output[i] = self->wave[self->wave_offset] *
- self->elapsed_len / (float)self->attack_len;
- if (self->elapsed_len >= self->attack_len) {
- self->state = STATE_DECAY;
- }
- break;
- case STATE_DECAY:
- /** Amplitude decreases from 1..0 until attack_len + decay_len */
- output[i] = 0.0f;
- output[i] = self->wave[self->wave_offset] *
- (1 - ((self->elapsed_len - self->attack_len) /
- (float)self->decay_len));
- if (self->elapsed_len >= self->attack_len + self->decay_len) {
- self->state = STATE_OFF;
- }
- break;
- case STATE_OFF:
- output[i] = 0.0f;
- }
-
- /** We continuously play the sine wave regardless of envelope */
- self->wave_offset = (self->wave_offset + 1) % self->wave_len;
-
- /** Update elapsed time and start attack if necessary */
- if (++self->elapsed_len == frames_per_beat) {
- self->state = STATE_ATTACK;
- self->elapsed_len = 0;
- }
- }
-}
-
-static void
-update_position(Metro* self, const LV2_Atom_Object* obj)
-{
- const MetroURIs* uris = &self->uris;
-
- /** Received new transport position/speed */
- LV2_Atom *beat = NULL, *bpm = NULL, *speed = NULL;
- lv2_atom_object_get(obj,
- uris->time_barBeat, &beat,
- uris->time_beatsPerMinute, &bpm,
- uris->time_speed, &speed,
- NULL);
- if (bpm && bpm->type == uris->atom_Float) {
- /** Tempo changed, update BPM */
- self->bpm = ((LV2_Atom_Float*)bpm)->body;
- }
- if (speed && speed->type == uris->atom_Float) {
- /** Speed changed, e.g. 0 (stop) to 1 (play) */
- self->speed = ((LV2_Atom_Float*)speed)->body;
- }
- if (beat && beat->type == uris->atom_Float) {
- /** Received a beat position, synchronise.
- This is a simple hard sync that may cause clicks.
- A real plugin would do something more graceful.
- */
- const float frames_per_beat = 60.0f / self->bpm * self->rate;
- const float bar_beats = ((LV2_Atom_Float*)beat)->body;
- const float beat_beats = bar_beats - floorf(bar_beats);
- self->elapsed_len = beat_beats * frames_per_beat;
- if (self->elapsed_len < self->attack_len) {
- self->state = STATE_ATTACK;
- } else if (self->elapsed_len < self->attack_len + self->decay_len) {
- self->state = STATE_DECAY;
- } else {
- self->state = STATE_OFF;
- }
- }
-}
-
-static void
-run(LV2_Handle instance, uint32_t sample_count)
-{
- Metro* self = (Metro*)instance;
- const MetroURIs* uris = &self->uris;
-
- /** Empty notify output for now */
- LV2_Atom_Sequence* notify = self->ports.notify;
- notify->atom.type = self->uris.atom_Sequence;
- notify->atom.size = sizeof(LV2_Atom_Sequence_Body);
- notify->body.unit = notify->body.pad = 0;
-
- /** Work forwards in time frame by frame, handling events as we go */
- const LV2_Atom_Sequence* in = self->ports.control;
- uint32_t last_t = 0;
- for (LV2_Atom_Event* ev = lv2_atom_sequence_begin(&in->body);
- !lv2_atom_sequence_is_end(&in->body, in->atom.size, ev);
- ev = lv2_atom_sequence_next(ev)) {
-
- /** Play the click for the time slice from last_t until now */
- play(self, last_t, ev->time.frames);
-
- if (ev->body.type == uris->atom_Blank) {
- const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
- if (obj->body.otype == uris->time_Position) {
- /** Received position information, update */
- update_position(self, obj);
- }
- }
-
- /** Update time for next iteration and move to next event*/
- last_t = ev->time.frames;
- }
-
- /** Play for remainder of cycle */
- play(self, last_t, sample_count);
-}
-
-static const LV2_Descriptor descriptor = {
- EG_METRO_URI,
- instantiate,
- connect_port,
- activate,
- run,
- NULL, // deactivate,
- cleanup,
- NULL, // extension_data
-};
-
-LV2_SYMBOL_EXPORT const LV2_Descriptor*
-lv2_descriptor(uint32_t index)
-{
- switch (index) {
- case 0:
- return &descriptor;
- default:
- return NULL;
- }
-}
diff --git a/plugins/eg-metro.lv2/metro.ttl b/plugins/eg-metro.lv2/metro.ttl
deleted file mode 100644
index a6f297f..0000000
--- a/plugins/eg-metro.lv2/metro.ttl
+++ /dev/null
@@ -1,39 +0,0 @@
-@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
-@prefix doap: <http://usefulinc.com/ns/doap#> .
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix time: <http://lv2plug.in/ns/ext/time#> .
-@prefix urid: <http://lv2plug.in/ns/ext/urid#> .
-
-<http://lv2plug.in/plugins/eg-metro>
- a lv2:Plugin ;
- doap:name "Example Metronome" ;
- doap:license <http://opensource.org/licenses/isc> ;
- lv2:project <http://lv2plug.in/ns/lv2> ;
- lv2:requiredFeature urid:map ;
- lv2:optionalFeature lv2:hardRTCapable ;
- lv2:port [
- a lv2:InputPort ,
- atom:AtomPort ;
- atom:bufferType atom:Sequence ;
-# Since this port supports time:Position, the host knows to deliver time and
-# tempo information
- atom:supports time:Position ;
- lv2:index 0 ;
- lv2:symbol "control" ;
- lv2:name "Control" ;
- ] , [
- a lv2:OutputPort ,
- atom:AtomPort ;
- atom:bufferType atom:Sequence ;
- atom:supports <http://lv2plug.in/ns/ext/patch#Patch> ;
- lv2:portProperty lv2:connectionOptional ;
- lv2:index 1 ;
- lv2:symbol "notify" ;
- lv2:name "Notify" ;
- ] , [
- a lv2:AudioPort ,
- lv2:OutputPort ;
- lv2:index 2 ;
- lv2:symbol "out" ;
- lv2:name "Out" ;
- ] .
diff --git a/plugins/eg-metro.lv2/waf b/plugins/eg-metro.lv2/waf
deleted file mode 120000
index 59a1ac9..0000000
--- a/plugins/eg-metro.lv2/waf
+++ /dev/null
@@ -1 +0,0 @@
-../../waf
\ No newline at end of file
diff --git a/plugins/eg-metro.lv2/wscript b/plugins/eg-metro.lv2/wscript
deleted file mode 100644
index 40642b6..0000000
--- a/plugins/eg-metro.lv2/wscript
+++ /dev/null
@@ -1,64 +0,0 @@
-#!/usr/bin/env python
-from waflib.extras import autowaf as autowaf
-import re
-
-# Variables for 'waf dist'
-APPNAME = 'eg-metro.lv2'
-VERSION = '1.0.0'
-
-# Mandatory variables
-top = '.'
-out = 'build'
-
-def options(opt):
- opt.load('compiler_c')
- autowaf.set_options(opt)
-
-def configure(conf):
- conf.load('compiler_c')
- autowaf.configure(conf)
- autowaf.set_c99_mode(conf)
- autowaf.display_header('Metro Configuration')
-
- if not autowaf.is_child():
- autowaf.check_pkg(conf, 'lv2', atleast_version='0.2.0', uselib_store='LV2')
-
- autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
- print('')
-
-def build(bld):
- bundle = 'eg-metro.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-metro.lv2)
- bld(features = 'subst',
- is_copy = True,
- source = 'metro.ttl',
- target = '%s/metro.ttl' % bundle,
- install_path = '${LV2DIR}/%s' % bundle)
-
- # Use LV2 headers from parent directory if building as a sub-project
- includes = ['.']
- if autowaf.is_child:
- includes += ['../..']
-
- # Build plugin library
- obj = bld(features = 'c cshlib',
- source = 'metro.c',
- name = 'metro',
- target = '%s/metro' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- use = 'LV2',
- includes = includes)
- obj.env.cshlib_PATTERN = module_pat
-
diff --git a/plugins/eg-midigate.lv2/README.txt b/plugins/eg-midigate.lv2/README.txt
deleted file mode 100644
index 8f4a0f0..0000000
--- a/plugins/eg-midigate.lv2/README.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-== MIDI Gate ==
-
-This plugin demonstrates:
-
- * Receiving MIDI input
-
- * Processing audio based on MIDI events with sample accuracy
-
- * Supporting MIDI programs which the host can control/automate, or present a
- user interface for with human readable labels
diff --git a/plugins/eg-midigate.lv2/manifest.ttl.in b/plugins/eg-midigate.lv2/manifest.ttl.in
deleted file mode 100644
index d32f1dc..0000000
--- a/plugins/eg-midigate.lv2/manifest.ttl.in
+++ /dev/null
@@ -1,10 +0,0 @@
-# The manifest.ttl file follows the same template as the previous example.
-
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix ui: <http://lv2plug.in/ns/extensions/ui#> .
-
-<http://lv2plug.in/plugins/eg-midigate>
- a lv2:Plugin ;
- lv2:binary <midigate@LIB_EXT@> ;
- rdfs:seeAlso <midigate.ttl> .
diff --git a/plugins/eg-midigate.lv2/midigate.c b/plugins/eg-midigate.lv2/midigate.c
deleted file mode 100644
index 3b74bfc..0000000
--- a/plugins/eg-midigate.lv2/midigate.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- Copyright 2013 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 <stdio.h>
-
-#include <math.h>
-#include <stdlib.h>
-
-#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
-#include "lv2/lv2plug.in/ns/ext/atom/util.h"
-#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
-#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-
-#define MIDIGATE_URI "http://lv2plug.in/plugins/eg-midigate"
-
-typedef enum {
- MIDIGATE_CONTROL = 0,
- MIDIGATE_IN = 1,
- MIDIGATE_OUT = 2
-} PortIndex;
-
-typedef struct {
- // Port buffers
- const LV2_Atom_Sequence* control;
- const float* in;
- float* out;
-
- // Features
- LV2_URID_Map* map;
-
- struct {
- LV2_URID midi_MidiEvent;
- } uris;
-
- unsigned n_active_notes;
- unsigned program;
-} Midigate;
-
-static LV2_Handle
-instantiate(const LV2_Descriptor* descriptor,
- double rate,
- const char* bundle_path,
- const LV2_Feature* const* features)
-{
- /** Scan features array for the URID feature we need. */
- LV2_URID_Map* map = NULL;
- for (int i = 0; features[i]; ++i) {
- if (!strcmp(features[i]->URI, LV2_URID__map)) {
- map = (LV2_URID_Map*)features[i]->data;
- break;
- }
- }
- if (!map) {
- /**
- No URID feature given. This is a host bug since we require this
- feature, but should be handled gracefully anyway.
- */
- return NULL;
- }
-
- Midigate* self = (Midigate*)calloc(1, sizeof(Midigate));
- self->map = map;
- self->uris.midi_MidiEvent = map->map(map->handle, LV2_MIDI__MidiEvent);
-
- return (LV2_Handle)self;
-}
-
-static void
-connect_port(LV2_Handle instance,
- uint32_t port,
- void* data)
-{
- Midigate* self = (Midigate*)instance;
-
- switch ((PortIndex)port) {
- case MIDIGATE_CONTROL:
- self->control = (const LV2_Atom_Sequence*)data;
- break;
- case MIDIGATE_IN:
- self->in = (const float*)data;
- break;
- case MIDIGATE_OUT:
- self->out = (float*)data;
- break;
- }
-}
-
-static void
-activate(LV2_Handle instance)
-{
- Midigate* self = (Midigate*)instance;
- self->n_active_notes = 0;
- self->program = 0;
-}
-
-/**
- A function to write a chunk of output, to be called from run(). If the gate
- is high, then the input will be passed through for this chunk, otherwise
- silence is written.
-*/
-static void
-write_output(Midigate* self, uint32_t offset, uint32_t len)
-{
- const bool active = (self->program == 0)
- ? (self->n_active_notes > 0)
- : (self->n_active_notes == 0);
- if (active) {
- memcpy(self->out + offset, self->in + offset, len * sizeof(float));
- } else {
- memset(self->out + offset, 0, len * sizeof(float));
- }
-}
-
-/**
- This plugin works through the cycle in chunks starting at offset zero. The
- +offset+ represents the current time within this this cycle, so
- the output from 0 to +offset+ has already been written.
-
- MIDI events are read in a loop. In each iteration, the number of active
- notes (on note on and note off) or the program (on program change) is
- updated, then the output is written up until the current event time. Then
- +offset+ is updated and the next event is processed. After the loop the
- final chunk from the last event to the end of the cycle is emitted.
-
- This pattern of iterating over input events and writing output along the way
- is a common idiom for writing sample accurate output based on event input.
-
- Note that this simple example simply writes input or zero for each sample
- based on the gate. A serious implementation would need to envelope the
- transition to avoid aliasing.
-*/
-static void
-run(LV2_Handle instance, uint32_t sample_count)
-{
- Midigate* self = (Midigate*)instance;
- uint32_t offset = 0;
-
- LV2_ATOM_SEQUENCE_FOREACH(self->control, ev) {
- if (ev->body.type == self->uris.midi_MidiEvent) {
- const uint8_t* const msg = (const uint8_t*)(ev + 1);
- switch (lv2_midi_message_type(msg)) {
- case LV2_MIDI_MSG_NOTE_ON:
- ++self->n_active_notes;
- break;
- case LV2_MIDI_MSG_NOTE_OFF:
- --self->n_active_notes;
- break;
- case LV2_MIDI_MSG_PGM_CHANGE:
- if (msg[1] == 0 || msg[1] == 1) {
- self->program = msg[1];
- }
- break;
- default: break;
- }
- }
-
- write_output(self, offset, ev->time.frames - offset);
- offset = ev->time.frames;
- }
-
- write_output(self, offset, sample_count - offset);
-}
-
-/**
- We have no resources to free on deactivation.
- Note that the next call to activate will re-initialise the state, namely
- self->n_active_notes, so there is no need to do so here.
-*/
-static void
-deactivate(LV2_Handle instance)
-{}
-
-static void
-cleanup(LV2_Handle instance)
-{
- free(instance);
-}
-
-/**
- This plugin also has no extension data to return.
-*/
-static const void*
-extension_data(const char* uri)
-{
- return NULL;
-}
-
-static const LV2_Descriptor descriptor = {
- MIDIGATE_URI,
- instantiate,
- connect_port,
- activate,
- run,
- deactivate,
- cleanup,
- extension_data
-};
-
-LV2_SYMBOL_EXPORT
-const LV2_Descriptor*
-lv2_descriptor(uint32_t index)
-{
- switch (index) {
- case 0:
- return &descriptor;
- default:
- return NULL;
- }
-}
diff --git a/plugins/eg-midigate.lv2/midigate.ttl b/plugins/eg-midigate.lv2/midigate.ttl
deleted file mode 100644
index 59ac815..0000000
--- a/plugins/eg-midigate.lv2/midigate.ttl
+++ /dev/null
@@ -1,80 +0,0 @@
-# The same set of namespace prefixes with two additions for LV2 extensions this
-# plugin uses: atom and urid.
-
-@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
-@prefix doap: <http://usefulinc.com/ns/doap#> .
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix midi: <http://lv2plug.in/ns/ext/midi#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix urid: <http://lv2plug.in/ns/ext/urid#> .
-
-<http://lv2plug.in/plugins/eg-midigate>
- a lv2:Plugin ;
- doap:name "Example MIDI Gate" ;
- doap:license <http://opensource.org/licenses/isc> ;
- lv2:project <http://lv2plug.in/ns/lv2> ;
- lv2:requiredFeature urid:map ;
- lv2:optionalFeature lv2:hardRTCapable ;
-# Describe program banks so the host can automate and/or present a user
-# interface. Describing supported programs (or any other MIDI event) is not
-# required, but is a good idea since it allows hosts to make better use of
-# plugins. This plugin has a single bank of two programs, which have a
-# (mandatory) label, and an (optional) comment to describe their meaning in
-# more detail.
-#
-# Both programs and the bank have an index, which corresponds to the MIDI bank
-# and program numbers that will activate them. Since there are other ways to
-# change programs (not used here), an index is not strictly required, but must
-# be present to support program changes from MIDI.
- lv2:bank [
- rdfs:label "Default" ;
- lv2:index 0 ;
- lv2:program [
- lv2:index 0 ;
- rdfs:label "Normal" ;
- rdfs:comment "Input is passed through if notes are active."
- ] , [
- lv2:index 1 ;
- rdfs:label "Inverted" ;
- rdfs:comment "Input is passed through if no notes are active."
- ]
- ] ;
-# This plugin has three ports. There is an audio input and output as before,
-# as well as a new AtomPort. An AtomPort buffer contains an Atom, which is a
-# generic container for any type of data. In this case, we want to receive
-# MIDI events, so the (mandatory) +atom:bufferType+ is atom:Sequence, which is
-# a series of events with time stamps.
-#
-# Events themselves are also generic and can contain any type of data, but in
-# this case we are only interested in MIDI events. The (optional)
-# +atom:supports+ property describes which event types are supported. Though
-# not required, this information should always be given so the host knows what
-# types of event it can expect the plugin to understand.
-#
-# The (optional) +lv2:designation+ of this port is +lv2:control+, which
-# indicates that this is the "main" control port where the host should send
-# events it expects to configure the plugin, in this case changing the MIDI
-# program. This is necessary since it is possible to have several MIDI input
-# ports, though typically it is best to have one.
- lv2:port [
- a lv2:InputPort ,
- atom:AtomPort ;
- atom:bufferType atom:Sequence ;
- atom:supports 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-midigate.lv2/waf b/plugins/eg-midigate.lv2/waf
deleted file mode 120000
index 59a1ac9..0000000
--- a/plugins/eg-midigate.lv2/waf
+++ /dev/null
@@ -1 +0,0 @@
-../../waf
\ No newline at end of file
diff --git a/plugins/eg-midigate.lv2/wscript b/plugins/eg-midigate.lv2/wscript
deleted file mode 100644
index 44336af..0000000
--- a/plugins/eg-midigate.lv2/wscript
+++ /dev/null
@@ -1,65 +0,0 @@
-#!/usr/bin/env python
-from waflib.extras import autowaf as autowaf
-import re
-
-# Variables for 'waf dist'
-APPNAME = 'eg-midigate.lv2'
-VERSION = '1.0.0'
-
-# Mandatory variables
-top = '.'
-out = 'build'
-
-def options(opt):
- opt.load('compiler_c')
- autowaf.set_options(opt)
-
-def configure(conf):
- conf.load('compiler_c')
- autowaf.configure(conf)
- autowaf.set_c99_mode(conf)
- autowaf.display_header('Midigate Configuration')
-
- if not autowaf.is_child():
- autowaf.check_pkg(conf, 'lv2', uselib_store='LV2')
-
- autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
- print('')
-
-def build(bld):
- bundle = 'eg-midigate.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 = '${LV2DIR}/%s' % bundle,
- LIB_EXT = module_ext)
-
- # Copy other data files to build bundle (build/eg-midigate.lv2)
- for i in ['midigate.ttl']:
- bld(features = 'subst',
- is_copy = True,
- source = i,
- target = '%s/%s' % (bundle, i),
- install_path = '${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 = 'c cshlib',
- source = 'midigate.c',
- name = 'midigate',
- target = '%s/midigate' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- uselib = 'LV2',
- includes = includes)
- obj.env.cshlib_PATTERN = module_pat
-
diff --git a/plugins/eg-sampler.lv2/README.txt b/plugins/eg-sampler.lv2/README.txt
deleted file mode 100644
index c1cac46..0000000
--- a/plugins/eg-sampler.lv2/README.txt
+++ /dev/null
@@ -1 +0,0 @@
-== Sampler ==
diff --git a/plugins/eg-sampler.lv2/click.wav b/plugins/eg-sampler.lv2/click.wav
deleted file mode 100644
index 520a18c..0000000
Binary files a/plugins/eg-sampler.lv2/click.wav and /dev/null differ
diff --git a/plugins/eg-sampler.lv2/manifest.ttl.in b/plugins/eg-sampler.lv2/manifest.ttl.in
deleted file mode 100644
index b4fa23e..0000000
--- a/plugins/eg-sampler.lv2/manifest.ttl.in
+++ /dev/null
@@ -1,13 +0,0 @@
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix ui: <http://lv2plug.in/ns/extensions/ui#> .
-
-<http://lv2plug.in/plugins/eg-sampler>
- a lv2:Plugin ;
- lv2:binary <sampler@LIB_EXT@> ;
- rdfs:seeAlso <sampler.ttl> .
-
-<http://lv2plug.in/plugins/eg-sampler#ui>
- a ui:GtkUI ;
- ui:binary <sampler_ui@LIB_EXT@> ;
- rdfs:seeAlso <sampler.ttl> .
diff --git a/plugins/eg-sampler.lv2/sampler.c b/plugins/eg-sampler.lv2/sampler.c
deleted file mode 100644
index 5bb4e54..0000000
--- a/plugins/eg-sampler.lv2/sampler.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- LV2 Sampler Example Plugin
- Copyright 2011-2012 David Robillard <d@drobilla.net>
- Copyright 2011 Gabriel M. Beddingfield <gabriel@teuton.org>
- Copyright 2011 James Morris <jwm.art.net@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.
-*/
-
-/**
- @file sampler.c Sampler Plugin
-
- A simple example of an LV2 sampler that dynamically loads a single sample
- (based on incoming events) and triggers their playback (based on incoming
- MIDI note events).
-
- This plugin illustrates:
- - UI <=> Plugin communication via events
- - Use of the worker extension for non-realtime tasks (sample loading)
- - Use of the log extension to print log messages via the host
- - Saving plugin state via the state extension
- - Dynamic plugin control via the same properties saved to state
-*/
-
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-#ifndef __cplusplus
-# include <stdbool.h>
-#endif
-
-#include <sndfile.h>
-
-#include "lv2/lv2plug.in/ns/ext/atom/forge.h"
-#include "lv2/lv2plug.in/ns/ext/atom/util.h"
-#include "lv2/lv2plug.in/ns/ext/log/log.h"
-#include "lv2/lv2plug.in/ns/ext/log/logger.h"
-#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
-#include "lv2/lv2plug.in/ns/ext/patch/patch.h"
-#include "lv2/lv2plug.in/ns/ext/state/state.h"
-#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
-#include "lv2/lv2plug.in/ns/ext/worker/worker.h"
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-
-#include "./uris.h"
-
-enum {
- SAMPLER_CONTROL = 0,
- SAMPLER_NOTIFY = 1,
- SAMPLER_OUT = 2
-};
-
-static const char* default_sample_file = "click.wav";
-
-typedef struct {
- SF_INFO info; /**< Info about sample from sndfile */
- float* data; /**< Sample data in float */
- char* path; /**< Path of file */
- size_t path_len; /**< Length of path */
-} Sample;
-
-typedef struct {
- /* Features */
- LV2_URID_Map* map;
- LV2_Worker_Schedule* schedule;
- LV2_Log_Log* log;
-
- /* Forge for creating atoms */
- LV2_Atom_Forge forge;
-
- /* Logger convenience API */
- LV2_Log_Logger logger;
-
- /* Sample */
- Sample* sample;
-
- /* Ports */
- const LV2_Atom_Sequence* control_port;
- LV2_Atom_Sequence* notify_port;
- float* output_port;
-
- /* Forge frame for notify port (for writing worker replies). */
- LV2_Atom_Forge_Frame notify_frame;
-
- /* URIs */
- SamplerURIs uris;
-
- /* Current position in run() */
- uint32_t frame_offset;
-
- /* Playback state */
- sf_count_t frame;
- bool play;
-} Sampler;
-
-/**
- An atom-like message used internally to apply/free samples.
-
- This is only used internally to communicate with the worker, it is never
- sent to the outside world via a port since it is not POD. It is convenient
- to use an Atom header so actual atoms can be easily sent through the same
- ringbuffer.
-*/
-typedef struct {
- LV2_Atom atom;
- Sample* sample;
-} SampleMessage;
-
-/**
- Load a new sample and return it.
-
- Since this is of course not a real-time safe action, this is called in the
- worker thread only. The sample is loaded and returned only, plugin state is
- not modified.
-*/
-static Sample*
-load_sample(Sampler* self, const char* path)
-{
- const size_t path_len = strlen(path);
-
- lv2_log_trace(&self->logger, "Loading sample %s\n", path);
-
- Sample* const sample = (Sample*)malloc(sizeof(Sample));
- SF_INFO* const info = &sample->info;
- SNDFILE* const sndfile = sf_open(path, SFM_READ, info);
-
- if (!sndfile || !info->frames || (info->channels != 1)) {
- lv2_log_error(&self->logger, "Failed to open sample '%s'\n", path);
- free(sample);
- return NULL;
- }
-
- /* Read data */
- float* const data = malloc(sizeof(float) * info->frames);
- if (!data) {
- lv2_log_error(&self->logger, "Failed to allocate memory for sample\n");
- return NULL;
- }
- sf_seek(sndfile, 0ul, SEEK_SET);
- sf_read_float(sndfile, data, info->frames);
- sf_close(sndfile);
-
- /* Fill sample struct and return it. */
- sample->data = data;
- sample->path = (char*)malloc(path_len + 1);
- sample->path_len = path_len;
- memcpy(sample->path, path, path_len + 1);
-
- return sample;
-}
-
-static void
-free_sample(Sampler* self, Sample* sample)
-{
- if (sample) {
- lv2_log_trace(&self->logger, "Freeing %s\n", sample->path);
- free(sample->path);
- free(sample->data);
- free(sample);
- }
-}
-
-/**
- Do work in a non-realtime thread.
-
- This is called for every piece of work scheduled in the audio thread using
- self->schedule->schedule_work(). A reply can be sent back to the audio
- thread using the provided respond function.
-*/
-static LV2_Worker_Status
-work(LV2_Handle instance,
- LV2_Worker_Respond_Function respond,
- LV2_Worker_Respond_Handle handle,
- uint32_t size,
- const void* data)
-{
- Sampler* self = (Sampler*)instance;
- const LV2_Atom* atom = (const LV2_Atom*)data;
- if (atom->type == self->uris.eg_freeSample) {
- /* Free old sample */
- const SampleMessage* msg = (const SampleMessage*)data;
- free_sample(self, msg->sample);
- } else {
- /* Handle set message (load sample). */
- const LV2_Atom_Object* obj = (const LV2_Atom_Object*)data;
-
- /* Get file path from message */
- const LV2_Atom* file_path = read_set_file(&self->uris, obj);
- if (!file_path) {
- return LV2_WORKER_ERR_UNKNOWN;
- }
-
- /* Load sample. */
- Sample* sample = load_sample(self, LV2_ATOM_BODY_CONST(file_path));
- if (sample) {
- /* Loaded sample, send it to run() to be applied. */
- respond(handle, sizeof(sample), &sample);
- }
- }
-
- return LV2_WORKER_SUCCESS;
-}
-
-/**
- Handle a response from work() in the audio thread.
-
- When running normally, this will be called by the host after run(). When
- freewheeling, this will be called immediately at the point the work was
- scheduled.
-*/
-static LV2_Worker_Status
-work_response(LV2_Handle instance,
- uint32_t size,
- const void* data)
-{
- Sampler* self = (Sampler*)instance;
-
- SampleMessage msg = { { sizeof(Sample*), self->uris.eg_freeSample },
- self->sample };
-
- /* Send a message to the worker to free the current sample */
- self->schedule->schedule_work(self->schedule->handle, sizeof(msg), &msg);
-
- /* Install the new sample */
- self->sample = *(Sample*const*)data;
-
- /* Send a notification that we're using a new sample. */
- lv2_atom_forge_frame_time(&self->forge, self->frame_offset);
- write_set_file(&self->forge, &self->uris,
- self->sample->path,
- self->sample->path_len);
-
- return LV2_WORKER_SUCCESS;
-}
-
-static void
-connect_port(LV2_Handle instance,
- uint32_t port,
- void* data)
-{
- Sampler* self = (Sampler*)instance;
- switch (port) {
- case SAMPLER_CONTROL:
- self->control_port = (const LV2_Atom_Sequence*)data;
- break;
- case SAMPLER_NOTIFY:
- self->notify_port = (LV2_Atom_Sequence*)data;
- break;
- case SAMPLER_OUT:
- self->output_port = (float*)data;
- break;
- default:
- break;
- }
-}
-
-static LV2_Handle
-instantiate(const LV2_Descriptor* descriptor,
- double rate,
- const char* path,
- const LV2_Feature* const* features)
-{
- /* Allocate and initialise instance structure. */
- Sampler* self = (Sampler*)malloc(sizeof(Sampler));
- if (!self) {
- return NULL;
- }
- memset(self, 0, sizeof(Sampler));
-
- /* Get host features */
- for (int i = 0; features[i]; ++i) {
- if (!strcmp(features[i]->URI, LV2_URID__map)) {
- self->map = (LV2_URID_Map*)features[i]->data;
- } else if (!strcmp(features[i]->URI, LV2_WORKER__schedule)) {
- self->schedule = (LV2_Worker_Schedule*)features[i]->data;
- } else if (!strcmp(features[i]->URI, LV2_LOG__log)) {
- self->log = (LV2_Log_Log*)features[i]->data;
- }
- }
- if (!self->map) {
- lv2_log_error(&self->logger, "Missing feature urid:map\n");
- goto fail;
- } else if (!self->schedule) {
- lv2_log_error(&self->logger, "Missing feature work:schedule\n");
- goto fail;
- }
-
- /* Map URIs and initialise forge/logger */
- map_sampler_uris(self->map, &self->uris);
- lv2_atom_forge_init(&self->forge, self->map);
- lv2_log_logger_init(&self->logger, self->map, self->log);
-
- /* Load the default sample file */
- const size_t path_len = strlen(path);
- const size_t file_len = strlen(default_sample_file);
- const size_t len = path_len + file_len;
- char* sample_path = (char*)malloc(len + 1);
- snprintf(sample_path, len + 1, "%s%s", path, default_sample_file);
- self->sample = load_sample(self, sample_path);
- free(sample_path);
-
- return (LV2_Handle)self;
-
-fail:
- free(self);
- return 0;
-}
-
-static void
-cleanup(LV2_Handle instance)
-{
- Sampler* self = (Sampler*)instance;
- free_sample(self, self->sample);
- free(self);
-}
-
-static void
-run(LV2_Handle instance,
- uint32_t sample_count)
-{
- Sampler* self = (Sampler*)instance;
- SamplerURIs* uris = &self->uris;
- sf_count_t start_frame = 0;
- sf_count_t pos = 0;
- float* output = self->output_port;
-
- /* Set up forge to write directly to notify output port. */
- const uint32_t notify_capacity = self->notify_port->atom.size;
- lv2_atom_forge_set_buffer(&self->forge,
- (uint8_t*)self->notify_port,
- notify_capacity);
-
- /* Start a sequence in the notify output port. */
- lv2_atom_forge_sequence_head(&self->forge, &self->notify_frame, 0);
-
- /* Read incoming events */
- LV2_ATOM_SEQUENCE_FOREACH(self->control_port, ev) {
- self->frame_offset = ev->time.frames;
- if (ev->body.type == uris->midi_Event) {
- const uint8_t* const msg = (const uint8_t*)(ev + 1);
- switch (lv2_midi_message_type(msg)) {
- case LV2_MIDI_MSG_NOTE_ON:
- start_frame = ev->time.frames;
- self->frame = 0;
- self->play = true;
- break;
- default:
- break;
- }
- } else if (is_object_type(uris, ev->body.type)) {
- const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
- if (obj->body.otype == uris->patch_Set) {
- /* Received a set message, send it to the worker. */
- lv2_log_trace(&self->logger, "Queueing set message\n");
- self->schedule->schedule_work(self->schedule->handle,
- lv2_atom_total_size(&ev->body),
- &ev->body);
- } else {
- lv2_log_trace(&self->logger,
- "Unknown object type %d\n", obj->body.otype);
- }
- } else {
- lv2_log_trace(&self->logger,
- "Unknown event type %d\n", ev->body.type);
- }
- }
-
- /* Render the sample (possibly already in progress) */
- if (self->play) {
- uint32_t f = self->frame;
- const uint32_t lf = self->sample->info.frames;
-
- for (pos = 0; pos < start_frame; ++pos) {
- output[pos] = 0;
- }
-
- for (; pos < sample_count && f < lf; ++pos, ++f) {
- output[pos] = self->sample->data[f];
- }
-
- self->frame = f;
-
- if (f == lf) {
- self->play = false;
- }
- }
-
- /* Add zeros to end if sample not long enough (or not playing) */
- for (; pos < sample_count; ++pos) {
- output[pos] = 0.0f;
- }
-}
-
-static LV2_State_Status
-save(LV2_Handle instance,
- LV2_State_Store_Function store,
- LV2_State_Handle handle,
- uint32_t flags,
- const LV2_Feature* const* features)
-{
- Sampler* self = (Sampler*)instance;
- if (!self->sample) {
- return LV2_STATE_SUCCESS;
- }
-
- LV2_State_Map_Path* map_path = NULL;
- for (int i = 0; features[i]; ++i) {
- if (!strcmp(features[i]->URI, LV2_STATE__mapPath)) {
- map_path = (LV2_State_Map_Path*)features[i]->data;
- }
- }
-
- char* apath = map_path->abstract_path(map_path->handle, self->sample->path);
-
- store(handle,
- self->uris.eg_sample,
- apath,
- strlen(self->sample->path) + 1,
- self->uris.atom_Path,
- LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
-
- free(apath);
-
- return LV2_STATE_SUCCESS;
-}
-
-static LV2_State_Status
-restore(LV2_Handle instance,
- LV2_State_Retrieve_Function retrieve,
- LV2_State_Handle handle,
- uint32_t flags,
- const LV2_Feature* const* features)
-{
- Sampler* self = (Sampler*)instance;
-
- size_t size;
- uint32_t type;
- uint32_t valflags;
-
- const void* value = retrieve(
- handle,
- self->uris.eg_sample,
- &size, &type, &valflags);
-
- if (value) {
- const char* path = (const char*)value;
- lv2_log_trace(&self->logger, "Restoring file %s\n", path);
- free_sample(self, self->sample);
- self->sample = load_sample(self, path);
- }
-
- return LV2_STATE_SUCCESS;
-}
-
-static const void*
-extension_data(const char* uri)
-{
- static const LV2_State_Interface state = { save, restore };
- static const LV2_Worker_Interface worker = { work, work_response, NULL };
- if (!strcmp(uri, LV2_STATE__interface)) {
- return &state;
- } else if (!strcmp(uri, LV2_WORKER__interface)) {
- return &worker;
- }
- return NULL;
-}
-
-static const LV2_Descriptor descriptor = {
- EG_SAMPLER_URI,
- instantiate,
- connect_port,
- NULL, // activate,
- run,
- NULL, // deactivate,
- cleanup,
- extension_data
-};
-
-LV2_SYMBOL_EXPORT
-const LV2_Descriptor* lv2_descriptor(uint32_t index)
-{
- switch (index) {
- case 0:
- return &descriptor;
- default:
- return NULL;
- }
-}
diff --git a/plugins/eg-sampler.lv2/sampler.ttl b/plugins/eg-sampler.lv2/sampler.ttl
deleted file mode 100644
index e008de0..0000000
--- a/plugins/eg-sampler.lv2/sampler.ttl
+++ /dev/null
@@ -1,83 +0,0 @@
-# LV2 Sampler Example Plugin
-# Copyright 2011-2012 David Robillard <d@drobilla.net>
-# Copyright 2011 Gabriel M. Beddingfield <gabriel@teuton.org>
-# Copyright 2011 James Morris <jwm.art.net@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.
-
-@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
-@prefix doap: <http://usefulinc.com/ns/doap#> .
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix patch: <http://lv2plug.in/ns/ext/patch#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix state: <http://lv2plug.in/ns/ext/state#> .
-@prefix ui: <http://lv2plug.in/ns/extensions/ui#> .
-@prefix urid: <http://lv2plug.in/ns/ext/urid#> .
-@prefix work: <http://lv2plug.in/ns/ext/worker#> .
-
-<http://lv2plug.in/plugins/eg-sampler#sample>
- a lv2:Parameter ;
- rdfs:label "sample" ;
- rdfs:range atom:Path .
-
-<http://lv2plug.in/plugins/eg-sampler>
- a lv2:Plugin ;
- doap:name "Example Sampler" ;
- doap:license <http://opensource.org/licenses/isc> ;
- lv2:project <http://lv2plug.in/ns/lv2> ;
- lv2:requiredFeature urid:map ,
- work:schedule ;
- lv2:optionalFeature lv2:hardRTCapable ,
- state:loadDefaultState ;
- lv2:extensionData state:interface ,
- work:interface ;
- ui:ui <http://lv2plug.in/plugins/eg-sampler#ui> ;
- patch:writable <http://lv2plug.in/plugins/eg-sampler#sample> ;
- lv2:port [
- a lv2:InputPort ,
- atom:AtomPort ;
- atom:bufferType atom:Sequence ;
- atom:supports <http://lv2plug.in/ns/ext/midi#MidiEvent> ,
- patch:Message ;
- lv2:designation lv2:control ;
- lv2:index 0 ;
- lv2:symbol "control" ;
- lv2:name "Control"
- ] , [
- a lv2:OutputPort ,
- atom:AtomPort ;
- atom:bufferType atom:Sequence ;
- atom:supports patch:Message ;
- lv2:designation lv2:control ;
- lv2:index 1 ;
- lv2:symbol "notify" ;
- lv2:name "Notify"
- ] , [
- a lv2:AudioPort ,
- lv2:OutputPort ;
- lv2:index 2 ;
- lv2:symbol "out" ;
- lv2:name "Out"
- ] ;
- state:state [
- <http://lv2plug.in/plugins/eg-sampler#sample> <click.wav>
- ] .
-
-<http://lv2plug.in/plugins/eg-sampler#ui>
- a ui:GtkUI ;
- lv2:requiredFeature urid:map ;
- ui:portNotification [
- ui:plugin <http://lv2plug.in/plugins/eg-sampler> ;
- lv2:symbol "notify" ;
- ui:notifyType atom:Blank
- ] .
diff --git a/plugins/eg-sampler.lv2/sampler_ui.c b/plugins/eg-sampler.lv2/sampler_ui.c
deleted file mode 100644
index 40922ae..0000000
--- a/plugins/eg-sampler.lv2/sampler_ui.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- LV2 Sampler Example Plugin UI
- Copyright 2011-2012 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.
-*/
-
-/**
- @file ui.c Sampler Plugin UI
-*/
-
-#include <stdlib.h>
-
-#include <gtk/gtk.h>
-
-#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
-#include "lv2/lv2plug.in/ns/ext/atom/forge.h"
-#include "lv2/lv2plug.in/ns/ext/atom/util.h"
-#include "lv2/lv2plug.in/ns/ext/patch/patch.h"
-#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
-#include "lv2/lv2plug.in/ns/extensions/ui/ui.h"
-
-#include "./uris.h"
-
-#define SAMPLER_UI_URI "http://lv2plug.in/plugins/eg-sampler#ui"
-
-typedef struct {
- LV2_Atom_Forge forge;
-
- LV2_URID_Map* map;
- SamplerURIs uris;
-
- LV2UI_Write_Function write;
- LV2UI_Controller controller;
-
- GtkWidget* box;
- GtkWidget* button;
- GtkWidget* label;
-} SamplerUI;
-
-static void
-on_load_clicked(GtkWidget* widget,
- void* handle)
-{
- SamplerUI* ui = (SamplerUI*)handle;
-
- /* Create a dialog to select a sample file. */
- GtkWidget* dialog = gtk_file_chooser_dialog_new(
- "Load Sample",
- NULL,
- GTK_FILE_CHOOSER_ACTION_OPEN,
- GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
- GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
- NULL);
-
- /* Run the dialog, and return if it is cancelled. */
- if (gtk_dialog_run(GTK_DIALOG(dialog)) != GTK_RESPONSE_ACCEPT) {
- gtk_widget_destroy(dialog);
- return;
- }
-
- /* Get the file path from the dialog. */
- char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
-
- /* Got what we need, destroy the dialog. */
- gtk_widget_destroy(dialog);
-
-#define OBJ_BUF_SIZE 1024
- uint8_t obj_buf[OBJ_BUF_SIZE];
- lv2_atom_forge_set_buffer(&ui->forge, obj_buf, OBJ_BUF_SIZE);
-
- LV2_Atom* msg = write_set_file(&ui->forge, &ui->uris,
- filename, strlen(filename));
-
- ui->write(ui->controller, 0, lv2_atom_total_size(msg),
- ui->uris.atom_eventTransfer,
- msg);
-
- g_free(filename);
-}
-
-static LV2UI_Handle
-instantiate(const LV2UI_Descriptor* descriptor,
- const char* plugin_uri,
- const char* bundle_path,
- LV2UI_Write_Function write_function,
- LV2UI_Controller controller,
- LV2UI_Widget* widget,
- const LV2_Feature* const* features)
-{
- SamplerUI* ui = (SamplerUI*)malloc(sizeof(SamplerUI));
- ui->map = NULL;
- ui->write = write_function;
- ui->controller = controller;
- ui->box = NULL;
- ui->button = NULL;
- ui->label = NULL;
-
- *widget = NULL;
-
- for (int i = 0; features[i]; ++i) {
- if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
- ui->map = (LV2_URID_Map*)features[i]->data;
- }
- }
-
- if (!ui->map) {
- fprintf(stderr, "sampler_ui: Host does not support urid:Map\n");
- free(ui);
- return NULL;
- }
-
- map_sampler_uris(ui->map, &ui->uris);
-
- lv2_atom_forge_init(&ui->forge, ui->map);
-
- ui->box = gtk_vbox_new(FALSE, 4);
- ui->label = gtk_label_new("?");
- ui->button = gtk_button_new_with_label("Load Sample");
- gtk_box_pack_start(GTK_BOX(ui->box), ui->label, TRUE, TRUE, 4);
- gtk_box_pack_start(GTK_BOX(ui->box), ui->button, FALSE, FALSE, 4);
- g_signal_connect(ui->button, "clicked",
- G_CALLBACK(on_load_clicked),
- ui);
-
- *widget = ui->box;
-
- return ui;
-}
-
-static void
-cleanup(LV2UI_Handle handle)
-{
- SamplerUI* ui = (SamplerUI*)handle;
- gtk_widget_destroy(ui->button);
- free(ui);
-}
-
-static void
-port_event(LV2UI_Handle handle,
- uint32_t port_index,
- uint32_t buffer_size,
- uint32_t format,
- const void* buffer)
-{
- SamplerUI* ui = (SamplerUI*)handle;
- if (format == ui->uris.atom_eventTransfer) {
- LV2_Atom* atom = (LV2_Atom*)buffer;
- if (atom->type == ui->uris.atom_Blank) {
- LV2_Atom_Object* obj = (LV2_Atom_Object*)atom;
- const LV2_Atom* file_uri = read_set_file(&ui->uris, obj);
- if (!file_uri) {
- fprintf(stderr, "Unknown message sent to UI.\n");
- return;
- }
-
- const char* uri = (const char*)LV2_ATOM_BODY(file_uri);
- gtk_label_set_text(GTK_LABEL(ui->label), uri);
- } else {
- fprintf(stderr, "Unknown message type.\n");
- }
- } else {
- fprintf(stderr, "Unknown format.\n");
- }
-}
-
-static const void*
-extension_data(const char* uri)
-{
- return NULL;
-}
-
-static const LV2UI_Descriptor descriptor = {
- SAMPLER_UI_URI,
- instantiate,
- cleanup,
- port_event,
- extension_data
-};
-
-LV2_SYMBOL_EXPORT
-const LV2UI_Descriptor*
-lv2ui_descriptor(uint32_t index)
-{
- switch (index) {
- case 0:
- return &descriptor;
- default:
- return NULL;
- }
-}
diff --git a/plugins/eg-sampler.lv2/uris.h b/plugins/eg-sampler.lv2/uris.h
deleted file mode 100644
index e2ec6d0..0000000
--- a/plugins/eg-sampler.lv2/uris.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- LV2 Sampler Example Plugin
- Copyright 2011-2012 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.
-*/
-
-#ifndef SAMPLER_URIS_H
-#define SAMPLER_URIS_H
-
-#include "lv2/lv2plug.in/ns/ext/log/log.h"
-#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
-#include "lv2/lv2plug.in/ns/ext/state/state.h"
-
-#define EG_SAMPLER_URI "http://lv2plug.in/plugins/eg-sampler"
-#define EG_SAMPLER__sample EG_SAMPLER_URI "#sample"
-#define EG_SAMPLER__applySample EG_SAMPLER_URI "#applySample"
-#define EG_SAMPLER__freeSample EG_SAMPLER_URI "#freeSample"
-
-typedef struct {
- LV2_URID atom_Blank;
- LV2_URID atom_Path;
- LV2_URID atom_Resource;
- LV2_URID atom_Sequence;
- LV2_URID atom_URID;
- LV2_URID atom_eventTransfer;
- LV2_URID eg_applySample;
- LV2_URID eg_sample;
- LV2_URID eg_freeSample;
- LV2_URID midi_Event;
- LV2_URID patch_Set;
- LV2_URID patch_property;
- LV2_URID patch_value;
-} SamplerURIs;
-
-static inline void
-map_sampler_uris(LV2_URID_Map* map, SamplerURIs* uris)
-{
- uris->atom_Blank = map->map(map->handle, LV2_ATOM__Blank);
- uris->atom_Path = map->map(map->handle, LV2_ATOM__Path);
- uris->atom_Resource = map->map(map->handle, LV2_ATOM__Resource);
- uris->atom_Sequence = map->map(map->handle, LV2_ATOM__Sequence);
- uris->atom_URID = map->map(map->handle, LV2_ATOM__URID);
- uris->atom_eventTransfer = map->map(map->handle, LV2_ATOM__eventTransfer);
- uris->eg_applySample = map->map(map->handle, EG_SAMPLER__applySample);
- uris->eg_freeSample = map->map(map->handle, EG_SAMPLER__freeSample);
- uris->eg_sample = map->map(map->handle, EG_SAMPLER__sample);
- uris->midi_Event = map->map(map->handle, LV2_MIDI__MidiEvent);
- uris->patch_Set = map->map(map->handle, LV2_PATCH__Set);
- uris->patch_property = map->map(map->handle, LV2_PATCH__property);
- uris->patch_value = map->map(map->handle, LV2_PATCH__value);
-}
-
-static inline bool
-is_object_type(const SamplerURIs* uris, LV2_URID type)
-{
- return type == uris->atom_Resource
- || type == uris->atom_Blank;
-}
-
-/**
- * Write a message like the following to @p forge:
- * []
- * a patch:Set ;
- * patch:property eg:sample ;
- * patch:value </home/me/foo.wav> .
- */
-static inline LV2_Atom*
-write_set_file(LV2_Atom_Forge* forge,
- const SamplerURIs* uris,
- const char* filename,
- const size_t filename_len)
-{
- LV2_Atom_Forge_Frame frame;
- LV2_Atom* set = (LV2_Atom*)lv2_atom_forge_blank(
- forge, &frame, 1, uris->patch_Set);
-
- lv2_atom_forge_property_head(forge, uris->patch_property, 0);
- lv2_atom_forge_urid(forge, uris->eg_sample);
- lv2_atom_forge_property_head(forge, uris->patch_value, 0);
- lv2_atom_forge_path(forge, filename, filename_len);
-
- lv2_atom_forge_pop(forge, &frame);
-
- return set;
-}
-
-/**
- * Get the file path from a message like:
- * []
- * a patch:Set ;
- * patch:property eg:sample ;
- * patch:value </home/me/foo.wav> .
- */
-static inline const LV2_Atom*
-read_set_file(const SamplerURIs* uris,
- const LV2_Atom_Object* obj)
-{
- if (obj->body.otype != uris->patch_Set) {
- fprintf(stderr, "Ignoring unknown message type %d\n", obj->body.otype);
- return NULL;
- }
-
- /* Get property URI. */
- const LV2_Atom* property = NULL;
- lv2_atom_object_get(obj, uris->patch_property, &property, 0);
- if (!property) {
- fprintf(stderr, "Malformed set message has no body.\n");
- return NULL;
- } else if (property->type != uris->atom_URID) {
- fprintf(stderr, "Malformed set message has non-URID property.\n");
- return NULL;
- } else if (((LV2_Atom_URID*)property)->body != uris->eg_sample) {
- fprintf(stderr, "Set message for unknown property.\n");
- return NULL;
- }
-
- /* Get value. */
- const LV2_Atom* file_path = NULL;
- lv2_atom_object_get(obj, uris->patch_value, &file_path, 0);
- if (!file_path) {
- fprintf(stderr, "Malformed set message has no value.\n");
- return NULL;
- } else if (file_path->type != uris->atom_Path) {
- fprintf(stderr, "Set message value is not a Path.\n");
- return NULL;
- }
-
- return file_path;
-}
-
-#endif /* SAMPLER_URIS_H */
diff --git a/plugins/eg-sampler.lv2/waf b/plugins/eg-sampler.lv2/waf
deleted file mode 120000
index 59a1ac9..0000000
--- a/plugins/eg-sampler.lv2/waf
+++ /dev/null
@@ -1 +0,0 @@
-../../waf
\ No newline at end of file
diff --git a/plugins/eg-sampler.lv2/wscript b/plugins/eg-sampler.lv2/wscript
deleted file mode 100644
index 732c904..0000000
--- a/plugins/eg-sampler.lv2/wscript
+++ /dev/null
@@ -1,80 +0,0 @@
-#!/usr/bin/env python
-from waflib.extras import autowaf as autowaf
-import re
-
-# Variables for 'waf dist'
-APPNAME = 'eg-sampler.lv2'
-VERSION = '1.0.0'
-
-# Mandatory variables
-top = '.'
-out = 'build'
-
-def options(opt):
- opt.load('compiler_c')
- autowaf.set_options(opt)
-
-def configure(conf):
- conf.load('compiler_c')
- autowaf.configure(conf)
- autowaf.set_c99_mode(conf)
- autowaf.display_header('Sampler Configuration')
-
- if not autowaf.is_child():
- autowaf.check_pkg(conf, 'lv2', atleast_version='1.2.1', uselib_store='LV2')
-
- autowaf.check_pkg(conf, 'sndfile', uselib_store='SNDFILE',
- atleast_version='1.0.0', mandatory=True)
- autowaf.check_pkg(conf, 'gtk+-2.0', uselib_store='GTK2',
- atleast_version='2.18.0', mandatory=False)
-
- autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
- print('')
-
-def build(bld):
- bundle = 'eg-sampler.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-sampler.lv2)
- for i in ['sampler.ttl', 'click.wav']:
- bld(features = 'subst',
- is_copy = True,
- source = i,
- target = '%s/%s' % (bundle, i),
- install_path = '${LV2DIR}/%s' % bundle)
-
- # Use LV2 headers from parent directory if building as a sub-project
- includes = ['.']
- if autowaf.is_child:
- includes += ['../..']
-
- # Build plugin library
- obj = bld(features = 'c cshlib',
- source = 'sampler.c',
- name = 'sampler',
- target = '%s/sampler' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- use = 'SNDFILE LV2',
- includes = includes)
- obj.env.cshlib_PATTERN = module_pat
-
- # Build UI library
- if bld.is_defined('HAVE_GTK2'):
- obj = bld(features = 'c cshlib',
- source = 'sampler_ui.c',
- name = 'sampler_ui',
- target = '%s/sampler_ui' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- use = 'GTK2 LV2',
- includes = includes)
- obj.env.cshlib_PATTERN = module_pat
diff --git a/plugins/eg-synth.lv2/manifest.ttl.in b/plugins/eg-synth.lv2/manifest.ttl.in
deleted file mode 100644
index 24acd71..0000000
--- a/plugins/eg-synth.lv2/manifest.ttl.in
+++ /dev/null
@@ -1,9 +0,0 @@
-# See manifest.ttl.in in the eg-amp.lv2 example for an explanation of this file
-
-@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
-
-<http://lv2plug.in/plugins/eg-synth>
- a lv2:Plugin ;
- lv2:binary <synth@LIB_EXT@> ;
- rdfs:seeAlso <synth.ttl> .
diff --git a/plugins/eg-synth.lv2/synth.c b/plugins/eg-synth.lv2/synth.c
deleted file mode 100644
index 758989b..0000000
--- a/plugins/eg-synth.lv2/synth.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- Copyright 2012 Harry van Haaren <harryhaaren@gmail.com>
- Copyright 2012 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.
-*/
-
-/**
- @file synth.c Implementation of the LV2 Sin Synth example plugin.
-
- This is a simple LV2 synthesis plugin that demonstrates how to receive MIDI
- events and render audio in response to them.
-*/
-
-#include <math.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
-
-#define SYNTH_URI "http://lv2plug.in/plugins/eg-synth"
-
-/** Port indices. */
-typedef enum {
- SYNTH_FREQ = 0,
- SYNTH_OUTPUT,
-} PortIndex;
-
-/** Plugin instance. */
-typedef struct {
- // Sample rate, necessary to generate sin wave in run()
- double sample_rate;
-
- // Current wave phase
- float phase;
-
- // Port buffers
- const float* freq;
- float* output;
-} Synth;
-
-/** Create a new plugin instance. */
-static LV2_Handle
-instantiate(const LV2_Descriptor* descriptor,
- double rate,
- const char* bundle_path,
- const LV2_Feature* const* features)
-{
- Synth* self = (Synth*)malloc(sizeof(Synth));
- if (self) {
- // Store the sample rate so it is available in run()
- self->sample_rate = rate;
- }
- return (LV2_Handle)self;
-}
-
-/** Connect a port to a buffer (audio thread, must be RT safe). */
-static void
-connect_port(LV2_Handle instance,
- uint32_t port,
- void* data)
-{
- Synth* self = (Synth*)instance;
-
- switch ((PortIndex)port) {
- case SYNTH_FREQ:
- self->freq = (const float*)data;
- break;
- case SYNTH_OUTPUT:
- self->output = (float*)data;
- break;
- }
-}
-
-/** Initialise and prepare the plugin instance for running. */
-static void
-activate(LV2_Handle instance)
-{
- Synth* self = (Synth*)instance;
-
- // Initialize phase so we start at the beginning of the wave
- self->phase = 0.0f;
-}
-
-/** Process a block of audio (audio thread, must be RT safe). */
-static void
-run(LV2_Handle instance, uint32_t n_samples)
-{
- Synth* self = (Synth*)instance;
-
- const float PI = 3.1415;
- const float volume = 0.3;
- const float freq = *(self->freq);
- float* const output = self->output;
-
- float samples_per_cycle = self->sample_rate / freq;
-
- /* Calculate the phase offset per sample. Phase ranges from 0..1, so
- phase_increment is a floating point number such that we get "freq"
- number of cycles in "sample_rate" amount of samples. */
- float phase_increment = (1.f / samples_per_cycle);
-
- for (uint32_t pos = 0; pos < n_samples; pos++) {
- /* Calculate the next sample. Phase ranges from 0..1, but sin()
- expects its input in radians, so we multiply by 2 PI to convert it.
- We also multiply by volume so it's not extremely loud. */
- output[pos] = sin(self->phase * 2 * PI) * volume;
-
- /* Increment the phase so we generate the next sample */
- self->phase += phase_increment;
- if (self->phase > 1.0f) {
- self->phase = 0.0f;
- }
- }
-}
-
-/** Finish running (counterpart to activate()). */
-static void
-deactivate(LV2_Handle instance)
-{
- /* Nothing to do here in this trivial mostly stateless plugin. */
-}
-
-/** Destroy a plugin instance (counterpart to instantiate()). */
-static void
-cleanup(LV2_Handle instance)
-{
- free(instance);
-}
-
-/** Return extension data provided by the plugin. */
-static const void*
-extension_data(const char* uri)
-{
- return NULL; /* This plugin has no extension data. */
-}
-
-/** The LV2_Descriptor for this plugin. */
-static const LV2_Descriptor descriptor = {
- SYNTH_URI,
- instantiate,
- connect_port,
- activate,
- run,
- deactivate,
- cleanup,
- extension_data
-};
-
-/** Entry point, the host will call this function to access descriptors. */
-LV2_SYMBOL_EXPORT
-const LV2_Descriptor*
-lv2_descriptor(uint32_t index)
-{
- switch (index) {
- case 0:
- return &descriptor;
- default:
- return NULL;
- }
-}
diff --git a/plugins/eg-synth.lv2/synth.ttl b/plugins/eg-synth.lv2/synth.ttl
deleted file mode 100644
index fb97d56..0000000
--- a/plugins/eg-synth.lv2/synth.ttl
+++ /dev/null
@@ -1,44 +0,0 @@
-# LV2 Sinewave synth plugin
-# Copyright 2012 Harry van Haaren <harryhaaren@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.
-
-@prefix doap: <http://usefulinc.com/ns/doap#> .
-@prefix foaf: <http://xmlns.com/foaf/0.1/> .
-@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#> .
-
-<http://lv2plug.in/plugins/eg-synth>
- a lv2:Plugin ,
- lv2:InstrumentPlugin ;
- doap:name "Example Synthesizer" ;
- doap:license <http://opensource.org/licenses/isc> ;
- lv2:project <http://lv2plug.in/ns/lv2> ;
- lv2:optionalFeature lv2:hardRTCapable ;
- lv2:port [
- a lv2:InputPort ,
- lv2:ControlPort ;
- lv2:index 0 ;
- lv2:symbol "frequency" ;
- lv2:name "Frequency" ;
- lv2:default 440.0 ;
- lv2:minimum 40.0 ;
- lv2:maximum 880.0
- ] , [
- a lv2:AudioPort ,
- lv2:OutputPort ;
- lv2:index 1 ;
- lv2:symbol "out" ;
- lv2:name "Out"
- ] .
diff --git a/plugins/eg-synth.lv2/waf b/plugins/eg-synth.lv2/waf
deleted file mode 120000
index 59a1ac9..0000000
--- a/plugins/eg-synth.lv2/waf
+++ /dev/null
@@ -1 +0,0 @@
-../../waf
\ No newline at end of file
diff --git a/plugins/eg-synth.lv2/wscript b/plugins/eg-synth.lv2/wscript
deleted file mode 100644
index 2069d03..0000000
--- a/plugins/eg-synth.lv2/wscript
+++ /dev/null
@@ -1,64 +0,0 @@
-#!/usr/bin/env python
-from waflib.extras import autowaf as autowaf
-import re
-
-# Variables for 'waf dist'
-APPNAME = 'eg-synth.lv2'
-VERSION = '1.0.0'
-
-# Mandatory variables
-top = '.'
-out = 'build'
-
-def options(opt):
- opt.load('compiler_c')
- autowaf.set_options(opt)
-
-def configure(conf):
- conf.load('compiler_c')
- autowaf.configure(conf)
- autowaf.set_c99_mode(conf)
- autowaf.display_header('Synth Configuration')
-
- if not autowaf.is_child():
- autowaf.check_pkg(conf, 'lv2', uselib_store='LV2')
-
- autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
- print('')
-
-def build(bld):
- bundle = APPNAME
-
- # 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-amp.lv2)
- for i in ['synth.ttl']:
- bld(features = 'subst',
- is_copy = True,
- source = i,
- target = '%s/%s' % (bundle, i),
- install_path = '${LV2DIR}/%s' % bundle)
-
- # Use LV2 headers from parent directory if building as a sub-project
- includes = None
- if autowaf.is_child:
- includes = '../..'
-
- # Build plugin library
- obj = bld(features = 'c cshlib',
- source = 'synth.c',
- name = 'synth',
- target = '%s/synth' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- uselib = 'LV2',
- includes = includes)
- obj.env.cshlib_PATTERN = module_pat
diff --git a/plugins/eg01-amp.lv2/README.txt b/plugins/eg01-amp.lv2/README.txt
new file mode 100644
index 0000000..f024a4d
--- /dev/null
+++ b/plugins/eg01-amp.lv2/README.txt
@@ -0,0 +1,21 @@
+== Simple Amplifier ==
+
+This plugin is a simple example of a basic LV2 plugin with no additional features.
+It has audio ports which contain an array of `float`,
+and a control port which contain a single `float`.
+
+LV2 plugins are defined in two parts: code and data.
+The code is written in C, or any C compatible language such as C++.
+Static data is described separately in the human and machine friendly http://www.w3.org/TeamSubmission/turtle/[Turtle] syntax.
+Turtle is a syntax for the RDF data model,
+but familiarity with RDF is not required to understand this documentation.
+
+Generally, code is kept minimal,
+and all static information is described in the data.
+There are several advantages to this approach:
+
+ * Hosts can discover and inspect plugins without loading or executing any plugin code
+ * It is simple to work with plugin data using scripting languages, command line tools, etc.
+ * The standard format allow the use of existing vocabularies to describe plugins and related information
+ * The data inherently integrates with the web, databases, etc.
+ * Labels and documentation are translatable, and available to hosts for display in user interfaces
diff --git a/plugins/eg01-amp.lv2/amp.c b/plugins/eg01-amp.lv2/amp.c
new file mode 100644
index 0000000..8dd7b4f
--- /dev/null
+++ b/plugins/eg01-amp.lv2/amp.c
@@ -0,0 +1,225 @@
+/*
+ Copyright 2006-2011 David Robillard <d@drobilla.net>
+ Copyright 2006 Steve Harris <steve@plugin.org.uk>
+
+ 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 standard C headers */
+#include <math.h>
+#include <stdlib.h>
+
+/**
+ LV2 headers are based on the URI of the specification they come from, so a
+ consistent convention can be used even for unofficial extensions. The URI
+ of the core LV2 specification is <http://lv2plug.in/ns/lv2core>, by
+ replacing `http:/` with `lv2` any header in the specification bundle can be
+ included, in this case `lv2.h`.
+*/
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+/**
+ The URI is the identifier for a plugin, and how the host associates this
+ implementation in code with its description in data. In this plugin it is
+ only used once in the code, but defining the plugin URI at the top of the
+ file is a good convention to follow. If this URI does not match that used
+ in the data files, the host will fail to load the plugin.
+*/
+#define AMP_URI "http://lv2plug.in/plugins/eg-amp"
+
+/**
+ In code, ports are referred to by index. An enumeration of port indices
+ should be defined for readability.
+*/
+typedef enum {
+ AMP_GAIN = 0,
+ AMP_INPUT = 1,
+ AMP_OUTPUT = 2
+} PortIndex;
+
+/**
+ Every plugin defines a private structure for the plugin instance. All data
+ associated with a plugin instance is stored here, and is available to
+ every instance method. In this simple plugin, only port buffers need to be
+ stored, since there is no additional instance data. */
+typedef struct {
+ // Port buffers
+ const float* gain;
+ const float* input;
+ float* output;
+} Amp;
+
+/**
+ The instantiate() function is called by the host to create a new plugin
+ instance. The host passes the plugin descriptor, sample rate, and bundle
+ path for plugins that need to load additional resources (e.g. waveforms).
+ The features parameter contains host-provided features defined in LV2
+ extensions, but this simple plugin does not use any.
+
+ This function is in the ``instantiation'' threading class, so no other
+ methods on this instance will be called concurrently with it.
+*/
+static LV2_Handle
+instantiate(const LV2_Descriptor* descriptor,
+ double rate,
+ const char* bundle_path,
+ const LV2_Feature* const* features)
+{
+ Amp* amp = (Amp*)malloc(sizeof(Amp));
+
+ return (LV2_Handle)amp;
+}
+
+/**
+ The connect_port() method is called by the host to connect a particular port
+ to a buffer. The plugin must store the data location, but data may not be
+ accessed except in run().
+
+ This method is in the ``audio'' threading class, and is called in the same
+ context as run().
+*/
+static void
+connect_port(LV2_Handle instance,
+ uint32_t port,
+ void* data)
+{
+ Amp* amp = (Amp*)instance;
+
+ switch ((PortIndex)port) {
+ case AMP_GAIN:
+ amp->gain = (const float*)data;
+ break;
+ case AMP_INPUT:
+ amp->input = (const float*)data;
+ break;
+ case AMP_OUTPUT:
+ amp->output = (float*)data;
+ break;
+ }
+}
+
+/**
+ The activate() method is called by the host to initialise and prepare the
+ plugin instance for running. The plugin must reset all internal state
+ except for buffer locations set by connect_port(). Since this plugin has
+ no other internal state, this method does nothing.
+
+ This method is in the ``instantiation'' threading class, so no other
+ methods on this instance will be called concurrently with it.
+*/
+static void
+activate(LV2_Handle instance)
+{
+}
+
+/** Define a macro for converting a gain in dB to a coefficient */
+#define DB_CO(g) ((g) > -90.0f ? powf(10.0f, (g) * 0.05f) : 0.0f)
+
+/** Process a block of audio (audio thread, must be RT safe). */
+static void
+run(LV2_Handle instance, uint32_t n_samples)
+{
+ const Amp* amp = (const Amp*)instance;
+
+ const float gain = *(amp->gain);
+ const float* const input = amp->input;
+ float* const output = amp->output;
+
+ const float coef = DB_CO(gain);
+
+ for (uint32_t pos = 0; pos < n_samples; pos++) {
+ output[pos] = input[pos] * coef;
+ }
+}
+
+/**
+ The deactivate() method is the counterpart to activate() called by the host
+ after running the plugin. It indicates that the host will not call run()
+ again until another call to activate() and is mainly useful for more
+ advanced plugins with ``live'' characteristics such as those with auxiliary
+ processing threads. As with activate(), this plugin has no use for this
+ information so this method does nothing.
+
+ This method is in the ``instantiation'' threading class, so no other
+ methods on this instance will be called concurrently with it.
+*/
+static void
+deactivate(LV2_Handle instance)
+{
+}
+
+/**
+ Destroy a plugin instance (counterpart to instantiate()).
+
+ This method is in the ``instantiation'' threading class, so no other
+ methods on this instance will be called concurrently with it.
+*/
+static void
+cleanup(LV2_Handle instance)
+{
+ free(instance);
+}
+
+/**
+ The extension_data function returns any extension data supported by the
+ plugin. Note that this is not an instance method, but a function on the
+ plugin descriptor. It is usually used by plugins to implement additional
+ interfaces. This plugin does not have any extension data, so this function
+ returns NULL.
+
+ This method is in the ``discovery'' threading class, so no other functions
+ or methods in this plugin library will be called concurrently with it.
+*/
+static const void*
+extension_data(const char* uri)
+{
+ return NULL;
+}
+
+/**
+ Define the LV2_Descriptor for this plugin. It is best to define descriptors
+ statically to avoid leaking memory and non-portable shared library
+ constructors and destructors to clean up properly.
+*/
+static const LV2_Descriptor descriptor = {
+ AMP_URI,
+ instantiate,
+ connect_port,
+ activate,
+ run,
+ deactivate,
+ cleanup,
+ extension_data
+};
+
+/**
+ The lv2_descriptor() function is the entry point to the plugin library. The
+ host will load the library and call this function repeatedly with increasing
+ indices to find all the plugins defined in the library. The index is not an
+ indentifier, the URI of the returned descriptor is used to determine the
+ identify of the plugin.
+
+ This method is in the ``discovery'' threading class, so no other functions
+ or methods in this plugin library will be called concurrently with it.
+*/
+LV2_SYMBOL_EXPORT
+const LV2_Descriptor*
+lv2_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
diff --git a/plugins/eg01-amp.lv2/amp.ttl b/plugins/eg01-amp.lv2/amp.ttl
new file mode 100644
index 0000000..f4a87f2
--- /dev/null
+++ b/plugins/eg01-amp.lv2/amp.ttl
@@ -0,0 +1,86 @@
+# The full description of the plugin is in this file, which is linked to from
+# `manifest.ttl`. This is done so the host only needs to scan the relatively
+# small `manifest.ttl` files to quickly discover all plugins.
+
+@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#> .
+
+# First the type of the plugin is described. All plugins must explicitly list
+# `lv2:Plugin` as a type. A more specific type should also be given, where
+# applicable, so hosts can present a nicer UI for loading plugins. Note that
+# this URI is the identifier of the plugin, so if it does not match the one in
+# `manifest.ttl`, the host will not discover the plugin data at all.
+<http://lv2plug.in/plugins/eg-amp>
+ a lv2:Plugin ,
+ lv2:AmplifierPlugin ;
+# Plugins are associated with a project, where common information like
+# developers, home page, and so on are described. This plugin is part of the
+# LV2 project, which has URI <http://lv2plug.in/ns/lv2>, and is described
+# elsewhere. Typical plugin collections will describe the project in
+# manifest.ttl
+ lv2:project <http://lv2plug.in/ns/lv2> ;
+# Every plugin must have a name, described with the doap:name property.
+# Translations to various languages can be added by putting a language tag
+# after strings as shown.
+ doap:name "Simple Amplifier" ,
+ "简单放大器"@ch ,
+ "Einfacher Verstärker"@de ,
+ "Simple Amp"@en-gb ,
+ "Amplificador Simple"@es ,
+ "Amplificateur de Base"@fr ,
+ "Amplificatore Semplice"@it ,
+ "簡単なアンプ"@jp ,
+ "Просто Усилитель"@ru ;
+ doap:license <http://opensource.org/licenses/isc> ;
+ lv2:optionalFeature lv2:hardRTCapable ;
+ lv2:port [
+# Every port must have at least two types, one that specifies direction
+# (lv2:InputPort or lv2:OutputPort), and another to describe the data type.
+# This port is a lv2:ControlPort, which means it contains a single float.
+ a lv2:InputPort ,
+ lv2:ControlPort ;
+ lv2:index 0 ;
+ lv2:symbol "gain" ;
+ lv2:name "Gain" ,
+ "收益"@ch ,
+ "Gewinn"@de ,
+ "Gain"@en-gb ,
+ "Aumento"@es ,
+ "Gain"@fr ,
+ "Guadagno"@it ,
+ "利益"@jp ,
+ "Увеличение"@ru ;
+# An lv2:ControlPort should always describe its default value, and usually a
+# minimum and maximum value. Defining a range is not strictly required, but
+# should be done wherever possible to aid host support, particularly for UIs.
+ lv2:default 0.0 ;
+ lv2:minimum -90.0 ;
+ lv2:maximum 24.0 ;
+ lv2:scalePoint [
+ rdfs:label "+5" ;
+ rdf:value 5.0
+ ] , [
+ rdfs:label "0" ;
+ rdf:value 0.0
+ ] , [
+ rdfs:label "-5" ;
+ rdf:value -5.0
+ ] , [
+ rdfs:label "-10" ;
+ rdf:value -10.0
+ ]
+ ] , [
+ 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/eg01-amp.lv2/manifest.ttl.in b/plugins/eg01-amp.lv2/manifest.ttl.in
new file mode 100644
index 0000000..0da78b0
--- /dev/null
+++ b/plugins/eg01-amp.lv2/manifest.ttl.in
@@ -0,0 +1,101 @@
+# LV2 Bundle Manifest
+#
+# All LV2 plugins are installed as "bundles", a directory with a particular
+# format. Inside the bundle, the entry point is a file called "manifest.ttl".
+# This file lists what plugins are in this bundle, and which files are (.so,
+# .ttl, etc.) are associated with those plugins.
+#
+# Hosts read bundles' manifest.ttl to discover what plugins (and other
+# resources) are available. Manifest files should be as small as possible for
+# performance reasons.
+#
+#
+# ==== Namespace Prefixes ====
+#
+# Turtle files contain many URIs. To make this more readable, prefixes
+# can be defined. For example, with the `lv2:` prefix below, instead of
+# <http://lv2plug.in/ns/lv2core#Plugin> the shorter form `lv2:Plugin` can be
+# used. This is just a shorthand for URIs within a file, the prefixes are not
+# significant otherwise.
+
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+# ==== Data ====
+
+<http://lv2plug.in/plugins/eg-amp>
+ a lv2:Plugin ;
+ lv2:binary <amp@LIB_EXT@> ;
+ rdfs:seeAlso <amp.ttl> .
+
+# The token `@LIB_EXT@` above is replaced by the build system with the
+# appropriate extension for the current platform (e.g. .so, .dylib, .dll).
+# This file is called called `manifest.ttl.in` rather than `manifest.ttl`
+# to indicate that it is not the final file to be installed.
+# This is not necessary, but is a good idea for portable plugins.
+# For reability, the following text will assume `.so` is the extension used.
+#
+# In short, this declares that the resource with URI
+# "http://lv2plug.in/plugins/eg-amp" is an LV2 plugin, with executable code in
+# the file "amp.so" and a full description in "amp.ttl". These paths are
+# relative to the bundle directory.
+#
+# There are 3 statements in this description:
+# |================================================================
+# | Subject | Predicate | Object
+# | <http://lv2plug.in/plugins/eg-amp> | a | lv2:Plugin
+# | <http://lv2plug.in/plugins/eg-amp> | lv2:binary | <amp.so>
+# | <http://lv2plug.in/plugins/eg-amp> | rdfs:seeAlso | <amp.ttl>
+# |================================================================
+#
+# The semicolon is used to continue the previous subject; an equivalent
+# but more verbose syntax for the same data is:
+
+<http://lv2plug.in/plugins/eg-amp> a lv2:Plugin .
+<http://lv2plug.in/plugins/eg-amp> lv2:binary <amp.so> .
+<http://lv2plug.in/plugins/eg-amp> rdfs:seeAlso <amp.ttl> .
+
+# (Since this data is equivalent, it is safe, if pointless, to list it twice)
+#
+# Note that the documentation for a URI can often be found by visiting that URI
+# in a web browser, e.g. the documentation for lv2:binary can be found at
+# <http://lv2plug.in/ns/lv2core#binary>. If you encounter a URI in some data
+# which you do not understand, try this first.
+#
+# Note the URI of a plugin does NOT need to be an actual web address, it's just
+# a global identifier. It is, however, a good idea to use an actual web
+# address if possible, since it can be used to easily access documentation,
+# downloads, etc. Note there are compatibility rules for when the URI of a
+# plugin must be changed, see the http://lv2plug.in/ns/lv2core[LV2 specification]
+# for details.
+#
+# AUTHORS MUST NOT CREATE URIS AT DOMAINS THEY DO NOT CONTROL WITHOUT
+# PERMISSION, AND *ESPECIALLY* MUST NOT CREATE SYNTACTICALLY INVALID URIS,
+# E.G. WHERE THE PORTION FOLLOWING "http://" IS NOT AN ACTUAL DOMAIN NAME. If
+# you need an example URI, the domain http://example.org/ is reserved for this
+# purpose. It is best to use web URIs, e.g. at the domain where plugins are
+# hosted for download, even if no actual documents are currently hosted there.
+# If this is truly impossible, use a URN, e.g. urn:myplugs:superamp.
+#
+# A detailed explanation of each statement follows.
+
+<http://lv2plug.in/plugins/eg-amp> a lv2:Plugin .
+
+# The `a`, as in ``is a'', is a Turtle shortcut for `rdf:type`.
+# `lv2:Plugin` expands to <http://lv2plug.in/ns/lv2core#Plugin> (using the
+# `lv2:` prefix above) which is the type of all LV2 plugins.
+# This statement means ``<http://lv2plug.in/plugins/eg-amp> is an LV2 plugin''.
+
+<http://lv2plug.in/plugins/eg-amp> lv2:binary <amp@LIB_EXT@> .
+
+# This says "this plugin has executable code ("binary") in the file
+# named "amp.so", which is located in this bundle. The LV2 specification
+# defines that all relative URIs in manifest files are relative to the bundle
+# directory, so this refers to the file amp.so in the same directory as this
+# manifest.ttl file.
+
+<http://lv2plug.in/plugins/eg-amp> rdfs:seeAlso <amp.ttl> .
+
+# This says ``there is more information about this plugin located in the file
+# `amp.ttl`''. The host will look at all such files when it needs to actually
+# use or investigate the plugin.
diff --git a/plugins/eg01-amp.lv2/waf b/plugins/eg01-amp.lv2/waf
new file mode 120000
index 0000000..59a1ac9
--- /dev/null
+++ b/plugins/eg01-amp.lv2/waf
@@ -0,0 +1 @@
+../../waf
\ No newline at end of file
diff --git a/plugins/eg01-amp.lv2/wscript b/plugins/eg01-amp.lv2/wscript
new file mode 100644
index 0000000..d4295ff
--- /dev/null
+++ b/plugins/eg01-amp.lv2/wscript
@@ -0,0 +1,67 @@
+#!/usr/bin/env python
+from waflib.extras import autowaf as autowaf
+import re
+
+# Variables for 'waf dist'
+APPNAME = 'eg-amp.lv2'
+VERSION = '1.0.0'
+
+# Mandatory variables
+top = '.'
+out = 'build'
+
+def options(opt):
+ opt.load('compiler_c')
+ autowaf.set_options(opt)
+
+def configure(conf):
+ conf.load('compiler_c')
+ autowaf.configure(conf)
+ autowaf.set_c99_mode(conf)
+ autowaf.display_header('Amp Configuration')
+
+ if not autowaf.is_child():
+ autowaf.check_pkg(conf, 'lv2', uselib_store='LV2')
+
+ conf.check(features='c cprogram', lib='m', uselib_store='M', mandatory=False)
+
+ autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
+ print('')
+
+def build(bld):
+ bundle = 'eg-amp.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 = '${LV2DIR}/%s' % bundle,
+ LIB_EXT = module_ext)
+
+ # Copy other data files to build bundle (build/eg-amp.lv2)
+ for i in ['amp.ttl']:
+ bld(features = 'subst',
+ is_copy = True,
+ source = i,
+ target = '%s/%s' % (bundle, i),
+ install_path = '${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 = 'c cshlib',
+ source = 'amp.c',
+ name = 'amp',
+ target = '%s/amp' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle,
+ uselib = 'M LV2',
+ includes = includes)
+ obj.env.cshlib_PATTERN = module_pat
+
diff --git a/plugins/eg02-midigate.lv2/README.txt b/plugins/eg02-midigate.lv2/README.txt
new file mode 100644
index 0000000..8f4a0f0
--- /dev/null
+++ b/plugins/eg02-midigate.lv2/README.txt
@@ -0,0 +1,10 @@
+== MIDI Gate ==
+
+This plugin demonstrates:
+
+ * Receiving MIDI input
+
+ * Processing audio based on MIDI events with sample accuracy
+
+ * Supporting MIDI programs which the host can control/automate, or present a
+ user interface for with human readable labels
diff --git a/plugins/eg02-midigate.lv2/manifest.ttl.in b/plugins/eg02-midigate.lv2/manifest.ttl.in
new file mode 100644
index 0000000..d32f1dc
--- /dev/null
+++ b/plugins/eg02-midigate.lv2/manifest.ttl.in
@@ -0,0 +1,10 @@
+# The manifest.ttl file follows the same template as the previous example.
+
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix ui: <http://lv2plug.in/ns/extensions/ui#> .
+
+<http://lv2plug.in/plugins/eg-midigate>
+ a lv2:Plugin ;
+ lv2:binary <midigate@LIB_EXT@> ;
+ rdfs:seeAlso <midigate.ttl> .
diff --git a/plugins/eg02-midigate.lv2/midigate.c b/plugins/eg02-midigate.lv2/midigate.c
new file mode 100644
index 0000000..3b74bfc
--- /dev/null
+++ b/plugins/eg02-midigate.lv2/midigate.c
@@ -0,0 +1,223 @@
+/*
+ Copyright 2013 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 <stdio.h>
+
+#include <math.h>
+#include <stdlib.h>
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+#define MIDIGATE_URI "http://lv2plug.in/plugins/eg-midigate"
+
+typedef enum {
+ MIDIGATE_CONTROL = 0,
+ MIDIGATE_IN = 1,
+ MIDIGATE_OUT = 2
+} PortIndex;
+
+typedef struct {
+ // Port buffers
+ const LV2_Atom_Sequence* control;
+ const float* in;
+ float* out;
+
+ // Features
+ LV2_URID_Map* map;
+
+ struct {
+ LV2_URID midi_MidiEvent;
+ } uris;
+
+ unsigned n_active_notes;
+ unsigned program;
+} Midigate;
+
+static LV2_Handle
+instantiate(const LV2_Descriptor* descriptor,
+ double rate,
+ const char* bundle_path,
+ const LV2_Feature* const* features)
+{
+ /** Scan features array for the URID feature we need. */
+ LV2_URID_Map* map = NULL;
+ for (int i = 0; features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_URID__map)) {
+ map = (LV2_URID_Map*)features[i]->data;
+ break;
+ }
+ }
+ if (!map) {
+ /**
+ No URID feature given. This is a host bug since we require this
+ feature, but should be handled gracefully anyway.
+ */
+ return NULL;
+ }
+
+ Midigate* self = (Midigate*)calloc(1, sizeof(Midigate));
+ self->map = map;
+ self->uris.midi_MidiEvent = map->map(map->handle, LV2_MIDI__MidiEvent);
+
+ return (LV2_Handle)self;
+}
+
+static void
+connect_port(LV2_Handle instance,
+ uint32_t port,
+ void* data)
+{
+ Midigate* self = (Midigate*)instance;
+
+ switch ((PortIndex)port) {
+ case MIDIGATE_CONTROL:
+ self->control = (const LV2_Atom_Sequence*)data;
+ break;
+ case MIDIGATE_IN:
+ self->in = (const float*)data;
+ break;
+ case MIDIGATE_OUT:
+ self->out = (float*)data;
+ break;
+ }
+}
+
+static void
+activate(LV2_Handle instance)
+{
+ Midigate* self = (Midigate*)instance;
+ self->n_active_notes = 0;
+ self->program = 0;
+}
+
+/**
+ A function to write a chunk of output, to be called from run(). If the gate
+ is high, then the input will be passed through for this chunk, otherwise
+ silence is written.
+*/
+static void
+write_output(Midigate* self, uint32_t offset, uint32_t len)
+{
+ const bool active = (self->program == 0)
+ ? (self->n_active_notes > 0)
+ : (self->n_active_notes == 0);
+ if (active) {
+ memcpy(self->out + offset, self->in + offset, len * sizeof(float));
+ } else {
+ memset(self->out + offset, 0, len * sizeof(float));
+ }
+}
+
+/**
+ This plugin works through the cycle in chunks starting at offset zero. The
+ +offset+ represents the current time within this this cycle, so
+ the output from 0 to +offset+ has already been written.
+
+ MIDI events are read in a loop. In each iteration, the number of active
+ notes (on note on and note off) or the program (on program change) is
+ updated, then the output is written up until the current event time. Then
+ +offset+ is updated and the next event is processed. After the loop the
+ final chunk from the last event to the end of the cycle is emitted.
+
+ This pattern of iterating over input events and writing output along the way
+ is a common idiom for writing sample accurate output based on event input.
+
+ Note that this simple example simply writes input or zero for each sample
+ based on the gate. A serious implementation would need to envelope the
+ transition to avoid aliasing.
+*/
+static void
+run(LV2_Handle instance, uint32_t sample_count)
+{
+ Midigate* self = (Midigate*)instance;
+ uint32_t offset = 0;
+
+ LV2_ATOM_SEQUENCE_FOREACH(self->control, ev) {
+ if (ev->body.type == self->uris.midi_MidiEvent) {
+ const uint8_t* const msg = (const uint8_t*)(ev + 1);
+ switch (lv2_midi_message_type(msg)) {
+ case LV2_MIDI_MSG_NOTE_ON:
+ ++self->n_active_notes;
+ break;
+ case LV2_MIDI_MSG_NOTE_OFF:
+ --self->n_active_notes;
+ break;
+ case LV2_MIDI_MSG_PGM_CHANGE:
+ if (msg[1] == 0 || msg[1] == 1) {
+ self->program = msg[1];
+ }
+ break;
+ default: break;
+ }
+ }
+
+ write_output(self, offset, ev->time.frames - offset);
+ offset = ev->time.frames;
+ }
+
+ write_output(self, offset, sample_count - offset);
+}
+
+/**
+ We have no resources to free on deactivation.
+ Note that the next call to activate will re-initialise the state, namely
+ self->n_active_notes, so there is no need to do so here.
+*/
+static void
+deactivate(LV2_Handle instance)
+{}
+
+static void
+cleanup(LV2_Handle instance)
+{
+ free(instance);
+}
+
+/**
+ This plugin also has no extension data to return.
+*/
+static const void*
+extension_data(const char* uri)
+{
+ return NULL;
+}
+
+static const LV2_Descriptor descriptor = {
+ MIDIGATE_URI,
+ instantiate,
+ connect_port,
+ activate,
+ run,
+ deactivate,
+ cleanup,
+ extension_data
+};
+
+LV2_SYMBOL_EXPORT
+const LV2_Descriptor*
+lv2_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
diff --git a/plugins/eg02-midigate.lv2/midigate.ttl b/plugins/eg02-midigate.lv2/midigate.ttl
new file mode 100644
index 0000000..59ac815
--- /dev/null
+++ b/plugins/eg02-midigate.lv2/midigate.ttl
@@ -0,0 +1,80 @@
+# The same set of namespace prefixes with two additions for LV2 extensions this
+# plugin uses: atom and urid.
+
+@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix midi: <http://lv2plug.in/ns/ext/midi#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix urid: <http://lv2plug.in/ns/ext/urid#> .
+
+<http://lv2plug.in/plugins/eg-midigate>
+ a lv2:Plugin ;
+ doap:name "Example MIDI Gate" ;
+ doap:license <http://opensource.org/licenses/isc> ;
+ lv2:project <http://lv2plug.in/ns/lv2> ;
+ lv2:requiredFeature urid:map ;
+ lv2:optionalFeature lv2:hardRTCapable ;
+# Describe program banks so the host can automate and/or present a user
+# interface. Describing supported programs (or any other MIDI event) is not
+# required, but is a good idea since it allows hosts to make better use of
+# plugins. This plugin has a single bank of two programs, which have a
+# (mandatory) label, and an (optional) comment to describe their meaning in
+# more detail.
+#
+# Both programs and the bank have an index, which corresponds to the MIDI bank
+# and program numbers that will activate them. Since there are other ways to
+# change programs (not used here), an index is not strictly required, but must
+# be present to support program changes from MIDI.
+ lv2:bank [
+ rdfs:label "Default" ;
+ lv2:index 0 ;
+ lv2:program [
+ lv2:index 0 ;
+ rdfs:label "Normal" ;
+ rdfs:comment "Input is passed through if notes are active."
+ ] , [
+ lv2:index 1 ;
+ rdfs:label "Inverted" ;
+ rdfs:comment "Input is passed through if no notes are active."
+ ]
+ ] ;
+# This plugin has three ports. There is an audio input and output as before,
+# as well as a new AtomPort. An AtomPort buffer contains an Atom, which is a
+# generic container for any type of data. In this case, we want to receive
+# MIDI events, so the (mandatory) +atom:bufferType+ is atom:Sequence, which is
+# a series of events with time stamps.
+#
+# Events themselves are also generic and can contain any type of data, but in
+# this case we are only interested in MIDI events. The (optional)
+# +atom:supports+ property describes which event types are supported. Though
+# not required, this information should always be given so the host knows what
+# types of event it can expect the plugin to understand.
+#
+# The (optional) +lv2:designation+ of this port is +lv2:control+, which
+# indicates that this is the "main" control port where the host should send
+# events it expects to configure the plugin, in this case changing the MIDI
+# program. This is necessary since it is possible to have several MIDI input
+# ports, though typically it is best to have one.
+ lv2:port [
+ a lv2:InputPort ,
+ atom:AtomPort ;
+ atom:bufferType atom:Sequence ;
+ atom:supports 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/eg02-midigate.lv2/waf b/plugins/eg02-midigate.lv2/waf
new file mode 120000
index 0000000..59a1ac9
--- /dev/null
+++ b/plugins/eg02-midigate.lv2/waf
@@ -0,0 +1 @@
+../../waf
\ No newline at end of file
diff --git a/plugins/eg02-midigate.lv2/wscript b/plugins/eg02-midigate.lv2/wscript
new file mode 100644
index 0000000..44336af
--- /dev/null
+++ b/plugins/eg02-midigate.lv2/wscript
@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+from waflib.extras import autowaf as autowaf
+import re
+
+# Variables for 'waf dist'
+APPNAME = 'eg-midigate.lv2'
+VERSION = '1.0.0'
+
+# Mandatory variables
+top = '.'
+out = 'build'
+
+def options(opt):
+ opt.load('compiler_c')
+ autowaf.set_options(opt)
+
+def configure(conf):
+ conf.load('compiler_c')
+ autowaf.configure(conf)
+ autowaf.set_c99_mode(conf)
+ autowaf.display_header('Midigate Configuration')
+
+ if not autowaf.is_child():
+ autowaf.check_pkg(conf, 'lv2', uselib_store='LV2')
+
+ autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
+ print('')
+
+def build(bld):
+ bundle = 'eg-midigate.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-midigate.lv2)
+ for i in ['midigate.ttl']:
+ bld(features = 'subst',
+ is_copy = True,
+ source = i,
+ target = '%s/%s' % (bundle, i),
+ install_path = '${LV2DIR}/%s' % bundle)
+
+ # Use LV2 headers from parent directory if building as a sub-project
+ includes = None
+ if autowaf.is_child:
+ includes = '../..'
+
+ # Build plugin library
+ obj = bld(features = 'c cshlib',
+ source = 'midigate.c',
+ name = 'midigate',
+ target = '%s/midigate' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle,
+ uselib = 'LV2',
+ includes = includes)
+ obj.env.cshlib_PATTERN = module_pat
+
diff --git a/plugins/eg03-metro.lv2/README.txt b/plugins/eg03-metro.lv2/README.txt
new file mode 100644
index 0000000..5e9a84a
--- /dev/null
+++ b/plugins/eg03-metro.lv2/README.txt
@@ -0,0 +1,9 @@
+== Metronome ==
+
+This plugin demonstrates tempo synchronisation by clicking on every beat. The
+host sends this information to the plugin as events, so an event with new time
+and tempo information will be received whenever there is a change.
+
+Time is assumed to continue rolling at the tempo and speed defined by the last
+received tempo event, even across cycles, until a new tempo event is received
+or the plugin is deactivated.
diff --git a/plugins/eg03-metro.lv2/manifest.ttl.in b/plugins/eg03-metro.lv2/manifest.ttl.in
new file mode 100644
index 0000000..bd93f66
--- /dev/null
+++ b/plugins/eg03-metro.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-metro>
+ a lv2:Plugin ;
+ lv2:binary <metro@LIB_EXT@> ;
+ rdfs:seeAlso <metro.ttl> .
diff --git a/plugins/eg03-metro.lv2/metro.c b/plugins/eg03-metro.lv2/metro.c
new file mode 100644
index 0000000..d2ac982
--- /dev/null
+++ b/plugins/eg03-metro.lv2/metro.c
@@ -0,0 +1,345 @@
+/*
+ LV2 Metronome Example Plugin
+ Copyright 2012 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifndef __cplusplus
+# include <stdbool.h>
+#endif
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/time/time.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+#ifndef M_PI
+# define M_PI 3.14159265
+#endif
+
+#define EG_METRO_URI "http://lv2plug.in/plugins/eg-metro"
+
+typedef struct {
+ LV2_URID atom_Blank;
+ LV2_URID atom_Float;
+ LV2_URID atom_Path;
+ LV2_URID atom_Resource;
+ LV2_URID atom_Sequence;
+ LV2_URID time_Position;
+ LV2_URID time_barBeat;
+ LV2_URID time_beatsPerMinute;
+ LV2_URID time_speed;
+} MetroURIs;
+
+static const double attack_s = 0.005;
+static const double decay_s = 0.075;
+
+enum {
+ METRO_CONTROL = 0,
+ METRO_NOTIFY = 1,
+ METRO_OUT = 2
+};
+
+/** During execution this plugin can be in one of 3 states: */
+typedef enum {
+ STATE_ATTACK, // Envelope rising
+ STATE_DECAY, // Envelope lowering
+ STATE_OFF // Silent
+} State;
+
+/** The plugin instance structure: */
+typedef struct {
+ LV2_URID_Map* map; // URID map feature
+ MetroURIs uris; // Cache of mapped URIDs
+
+ struct {
+ LV2_Atom_Sequence* control;
+ LV2_Atom_Sequence* notify;
+ float* output;
+ } ports;
+
+ /** The rate, bpm, and speed are the basic information sent by the host. */
+ double rate;
+ float bpm;
+ float speed;
+
+ /** To keep track of when to play the next click, we need to keep track of
+ a few pieces of information: */
+
+ /** - The frames since the start of the last click is stored */
+ uint32_t elapsed_len;
+
+ /** - The current play offset in the wave */
+ uint32_t wave_offset;
+
+ /** - The current play state (attack, decay, or off) */
+ State state;
+
+ /** The wave to play is a simple sine wave generated at instantiation time
+ based on the sample rate. The length in frames is stored in order to
+ continuously play the wave in a cycle to avoid discontinuity clicks. */
+ float* wave;
+ uint32_t wave_len;
+
+ /** The continuously playing sine wave is enveloped to provide an actual
+ metronome tick. This plugin uses a simple AD envelope with fixed
+ parameters. A more sophisticated implementation might use a more
+ advanced envelope and allow the user to modify these parameters. */
+ uint32_t attack_len;
+ uint32_t decay_len;
+} Metro;
+
+static void
+connect_port(LV2_Handle instance,
+ uint32_t port,
+ void* data)
+{
+ Metro* self = (Metro*)instance;
+
+ switch (port) {
+ case METRO_CONTROL:
+ self->ports.control = (LV2_Atom_Sequence*)data;
+ break;
+ case METRO_NOTIFY:
+ self->ports.notify = (LV2_Atom_Sequence*)data;
+ break;
+ case METRO_OUT:
+ self->ports.output = (float*)data;
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+activate(LV2_Handle instance)
+{
+ Metro* self = (Metro*)instance;
+
+ self->elapsed_len = 0;
+ self->wave_offset = 0;
+ self->state = STATE_OFF;
+}
+
+static LV2_Handle
+instantiate(const LV2_Descriptor* descriptor,
+ double rate,
+ const char* path,
+ const LV2_Feature* const* features)
+{
+ Metro* self = (Metro*)calloc(1, sizeof(Metro));
+ if (!self) {
+ return NULL;
+ }
+
+ /** Scan host features for URID map */
+ LV2_URID_Map* map = NULL;
+ for (int i = 0; features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
+ map = (LV2_URID_Map*)features[i]->data;
+ }
+ }
+ if (!map) {
+ fprintf(stderr, "Host does not support urid:map.\n");
+ free(self);
+ return NULL;
+ }
+
+ /** Map URIS */
+ MetroURIs* const uris = &self->uris;
+ self->map = map;
+ uris->atom_Blank = map->map(map->handle, LV2_ATOM__Blank);
+ uris->atom_Float = map->map(map->handle, LV2_ATOM__Float);
+ uris->atom_Path = map->map(map->handle, LV2_ATOM__Path);
+ uris->atom_Resource = map->map(map->handle, LV2_ATOM__Resource);
+ uris->atom_Sequence = map->map(map->handle, LV2_ATOM__Sequence);
+ uris->time_Position = map->map(map->handle, LV2_TIME__Position);
+ uris->time_barBeat = map->map(map->handle, LV2_TIME__barBeat);
+ uris->time_beatsPerMinute = map->map(map->handle, LV2_TIME__beatsPerMinute);
+ uris->time_speed = map->map(map->handle, LV2_TIME__speed);
+
+ /** Initialise fields */
+ self->rate = rate;
+ self->bpm = 120.0f;
+ self->attack_len = attack_s * rate;
+ self->decay_len = decay_s * rate;
+ self->state = STATE_OFF;
+
+ /** Generate one cycle of a sine wave at the desired frequency. */
+ const double freq = 440.0 * 2.0;
+ const double amp = 0.5;
+ self->wave_len = rate / freq;
+ self->wave = (float*)malloc(self->wave_len * sizeof(float));
+ for (uint32_t i = 0; i < self->wave_len; ++i) {
+ self->wave[i] = sin(i * 2 * M_PI * freq / rate) * amp;
+ }
+
+ return (LV2_Handle)self;
+}
+
+static void
+cleanup(LV2_Handle instance)
+{
+ free(instance);
+}
+
+static void
+play(Metro* self, uint32_t begin, uint32_t end)
+{
+ float* const output = self->ports.output;
+ const uint32_t frames_per_beat = 60.0f / self->bpm * self->rate;
+
+ if (self->speed == 0.0f) {
+ memset(output, 0, (end - begin) * sizeof(float));
+ return;
+ }
+
+ for (uint32_t i = begin; i < end; ++i) {
+ switch (self->state) {
+ case STATE_ATTACK:
+ /** Amplitude increases from 0..1 until attack_len */
+ output[i] = self->wave[self->wave_offset] *
+ self->elapsed_len / (float)self->attack_len;
+ if (self->elapsed_len >= self->attack_len) {
+ self->state = STATE_DECAY;
+ }
+ break;
+ case STATE_DECAY:
+ /** Amplitude decreases from 1..0 until attack_len + decay_len */
+ output[i] = 0.0f;
+ output[i] = self->wave[self->wave_offset] *
+ (1 - ((self->elapsed_len - self->attack_len) /
+ (float)self->decay_len));
+ if (self->elapsed_len >= self->attack_len + self->decay_len) {
+ self->state = STATE_OFF;
+ }
+ break;
+ case STATE_OFF:
+ output[i] = 0.0f;
+ }
+
+ /** We continuously play the sine wave regardless of envelope */
+ self->wave_offset = (self->wave_offset + 1) % self->wave_len;
+
+ /** Update elapsed time and start attack if necessary */
+ if (++self->elapsed_len == frames_per_beat) {
+ self->state = STATE_ATTACK;
+ self->elapsed_len = 0;
+ }
+ }
+}
+
+static void
+update_position(Metro* self, const LV2_Atom_Object* obj)
+{
+ const MetroURIs* uris = &self->uris;
+
+ /** Received new transport position/speed */
+ LV2_Atom *beat = NULL, *bpm = NULL, *speed = NULL;
+ lv2_atom_object_get(obj,
+ uris->time_barBeat, &beat,
+ uris->time_beatsPerMinute, &bpm,
+ uris->time_speed, &speed,
+ NULL);
+ if (bpm && bpm->type == uris->atom_Float) {
+ /** Tempo changed, update BPM */
+ self->bpm = ((LV2_Atom_Float*)bpm)->body;
+ }
+ if (speed && speed->type == uris->atom_Float) {
+ /** Speed changed, e.g. 0 (stop) to 1 (play) */
+ self->speed = ((LV2_Atom_Float*)speed)->body;
+ }
+ if (beat && beat->type == uris->atom_Float) {
+ /** Received a beat position, synchronise.
+ This is a simple hard sync that may cause clicks.
+ A real plugin would do something more graceful.
+ */
+ const float frames_per_beat = 60.0f / self->bpm * self->rate;
+ const float bar_beats = ((LV2_Atom_Float*)beat)->body;
+ const float beat_beats = bar_beats - floorf(bar_beats);
+ self->elapsed_len = beat_beats * frames_per_beat;
+ if (self->elapsed_len < self->attack_len) {
+ self->state = STATE_ATTACK;
+ } else if (self->elapsed_len < self->attack_len + self->decay_len) {
+ self->state = STATE_DECAY;
+ } else {
+ self->state = STATE_OFF;
+ }
+ }
+}
+
+static void
+run(LV2_Handle instance, uint32_t sample_count)
+{
+ Metro* self = (Metro*)instance;
+ const MetroURIs* uris = &self->uris;
+
+ /** Empty notify output for now */
+ LV2_Atom_Sequence* notify = self->ports.notify;
+ notify->atom.type = self->uris.atom_Sequence;
+ notify->atom.size = sizeof(LV2_Atom_Sequence_Body);
+ notify->body.unit = notify->body.pad = 0;
+
+ /** Work forwards in time frame by frame, handling events as we go */
+ const LV2_Atom_Sequence* in = self->ports.control;
+ uint32_t last_t = 0;
+ for (LV2_Atom_Event* ev = lv2_atom_sequence_begin(&in->body);
+ !lv2_atom_sequence_is_end(&in->body, in->atom.size, ev);
+ ev = lv2_atom_sequence_next(ev)) {
+
+ /** Play the click for the time slice from last_t until now */
+ play(self, last_t, ev->time.frames);
+
+ if (ev->body.type == uris->atom_Blank) {
+ const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
+ if (obj->body.otype == uris->time_Position) {
+ /** Received position information, update */
+ update_position(self, obj);
+ }
+ }
+
+ /** Update time for next iteration and move to next event*/
+ last_t = ev->time.frames;
+ }
+
+ /** Play for remainder of cycle */
+ play(self, last_t, sample_count);
+}
+
+static const LV2_Descriptor descriptor = {
+ EG_METRO_URI,
+ instantiate,
+ connect_port,
+ activate,
+ run,
+ NULL, // deactivate,
+ cleanup,
+ NULL, // extension_data
+};
+
+LV2_SYMBOL_EXPORT const LV2_Descriptor*
+lv2_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
diff --git a/plugins/eg03-metro.lv2/metro.ttl b/plugins/eg03-metro.lv2/metro.ttl
new file mode 100644
index 0000000..a6f297f
--- /dev/null
+++ b/plugins/eg03-metro.lv2/metro.ttl
@@ -0,0 +1,39 @@
+@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix time: <http://lv2plug.in/ns/ext/time#> .
+@prefix urid: <http://lv2plug.in/ns/ext/urid#> .
+
+<http://lv2plug.in/plugins/eg-metro>
+ a lv2:Plugin ;
+ doap:name "Example Metronome" ;
+ doap:license <http://opensource.org/licenses/isc> ;
+ lv2:project <http://lv2plug.in/ns/lv2> ;
+ lv2:requiredFeature urid:map ;
+ lv2:optionalFeature lv2:hardRTCapable ;
+ lv2:port [
+ a lv2:InputPort ,
+ atom:AtomPort ;
+ atom:bufferType atom:Sequence ;
+# Since this port supports time:Position, the host knows to deliver time and
+# tempo information
+ atom:supports time:Position ;
+ lv2:index 0 ;
+ lv2:symbol "control" ;
+ lv2:name "Control" ;
+ ] , [
+ a lv2:OutputPort ,
+ atom:AtomPort ;
+ atom:bufferType atom:Sequence ;
+ atom:supports <http://lv2plug.in/ns/ext/patch#Patch> ;
+ lv2:portProperty lv2:connectionOptional ;
+ lv2:index 1 ;
+ lv2:symbol "notify" ;
+ lv2:name "Notify" ;
+ ] , [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 2 ;
+ lv2:symbol "out" ;
+ lv2:name "Out" ;
+ ] .
diff --git a/plugins/eg03-metro.lv2/waf b/plugins/eg03-metro.lv2/waf
new file mode 120000
index 0000000..59a1ac9
--- /dev/null
+++ b/plugins/eg03-metro.lv2/waf
@@ -0,0 +1 @@
+../../waf
\ No newline at end of file
diff --git a/plugins/eg03-metro.lv2/wscript b/plugins/eg03-metro.lv2/wscript
new file mode 100644
index 0000000..40642b6
--- /dev/null
+++ b/plugins/eg03-metro.lv2/wscript
@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+from waflib.extras import autowaf as autowaf
+import re
+
+# Variables for 'waf dist'
+APPNAME = 'eg-metro.lv2'
+VERSION = '1.0.0'
+
+# Mandatory variables
+top = '.'
+out = 'build'
+
+def options(opt):
+ opt.load('compiler_c')
+ autowaf.set_options(opt)
+
+def configure(conf):
+ conf.load('compiler_c')
+ autowaf.configure(conf)
+ autowaf.set_c99_mode(conf)
+ autowaf.display_header('Metro Configuration')
+
+ if not autowaf.is_child():
+ autowaf.check_pkg(conf, 'lv2', atleast_version='0.2.0', uselib_store='LV2')
+
+ autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
+ print('')
+
+def build(bld):
+ bundle = 'eg-metro.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 = '${LV2DIR}/%s' % bundle,
+ LIB_EXT = module_ext)
+
+ # Copy other data files to build bundle (build/eg-metro.lv2)
+ bld(features = 'subst',
+ is_copy = True,
+ source = 'metro.ttl',
+ target = '%s/metro.ttl' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle)
+
+ # Use LV2 headers from parent directory if building as a sub-project
+ includes = ['.']
+ if autowaf.is_child:
+ includes += ['../..']
+
+ # Build plugin library
+ obj = bld(features = 'c cshlib',
+ source = 'metro.c',
+ name = 'metro',
+ target = '%s/metro' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle,
+ use = 'LV2',
+ includes = includes)
+ obj.env.cshlib_PATTERN = module_pat
+
diff --git a/plugins/eg04-sampler.lv2/README.txt b/plugins/eg04-sampler.lv2/README.txt
new file mode 100644
index 0000000..c1cac46
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/README.txt
@@ -0,0 +1 @@
+== Sampler ==
diff --git a/plugins/eg04-sampler.lv2/click.wav b/plugins/eg04-sampler.lv2/click.wav
new file mode 100644
index 0000000..520a18c
Binary files /dev/null and b/plugins/eg04-sampler.lv2/click.wav differ
diff --git a/plugins/eg04-sampler.lv2/manifest.ttl.in b/plugins/eg04-sampler.lv2/manifest.ttl.in
new file mode 100644
index 0000000..b4fa23e
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/manifest.ttl.in
@@ -0,0 +1,13 @@
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix ui: <http://lv2plug.in/ns/extensions/ui#> .
+
+<http://lv2plug.in/plugins/eg-sampler>
+ a lv2:Plugin ;
+ lv2:binary <sampler@LIB_EXT@> ;
+ rdfs:seeAlso <sampler.ttl> .
+
+<http://lv2plug.in/plugins/eg-sampler#ui>
+ a ui:GtkUI ;
+ ui:binary <sampler_ui@LIB_EXT@> ;
+ rdfs:seeAlso <sampler.ttl> .
diff --git a/plugins/eg04-sampler.lv2/sampler.c b/plugins/eg04-sampler.lv2/sampler.c
new file mode 100644
index 0000000..5bb4e54
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/sampler.c
@@ -0,0 +1,498 @@
+/*
+ LV2 Sampler Example Plugin
+ Copyright 2011-2012 David Robillard <d@drobilla.net>
+ Copyright 2011 Gabriel M. Beddingfield <gabriel@teuton.org>
+ Copyright 2011 James Morris <jwm.art.net@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.
+*/
+
+/**
+ @file sampler.c Sampler Plugin
+
+ A simple example of an LV2 sampler that dynamically loads a single sample
+ (based on incoming events) and triggers their playback (based on incoming
+ MIDI note events).
+
+ This plugin illustrates:
+ - UI <=> Plugin communication via events
+ - Use of the worker extension for non-realtime tasks (sample loading)
+ - Use of the log extension to print log messages via the host
+ - Saving plugin state via the state extension
+ - Dynamic plugin control via the same properties saved to state
+*/
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+#ifndef __cplusplus
+# include <stdbool.h>
+#endif
+
+#include <sndfile.h>
+
+#include "lv2/lv2plug.in/ns/ext/atom/forge.h"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/log/log.h"
+#include "lv2/lv2plug.in/ns/ext/log/logger.h"
+#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
+#include "lv2/lv2plug.in/ns/ext/patch/patch.h"
+#include "lv2/lv2plug.in/ns/ext/state/state.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+#include "lv2/lv2plug.in/ns/ext/worker/worker.h"
+#include "lv2/lv2plug.in/ns/lv2core/lv2.h"
+
+#include "./uris.h"
+
+enum {
+ SAMPLER_CONTROL = 0,
+ SAMPLER_NOTIFY = 1,
+ SAMPLER_OUT = 2
+};
+
+static const char* default_sample_file = "click.wav";
+
+typedef struct {
+ SF_INFO info; /**< Info about sample from sndfile */
+ float* data; /**< Sample data in float */
+ char* path; /**< Path of file */
+ size_t path_len; /**< Length of path */
+} Sample;
+
+typedef struct {
+ /* Features */
+ LV2_URID_Map* map;
+ LV2_Worker_Schedule* schedule;
+ LV2_Log_Log* log;
+
+ /* Forge for creating atoms */
+ LV2_Atom_Forge forge;
+
+ /* Logger convenience API */
+ LV2_Log_Logger logger;
+
+ /* Sample */
+ Sample* sample;
+
+ /* Ports */
+ const LV2_Atom_Sequence* control_port;
+ LV2_Atom_Sequence* notify_port;
+ float* output_port;
+
+ /* Forge frame for notify port (for writing worker replies). */
+ LV2_Atom_Forge_Frame notify_frame;
+
+ /* URIs */
+ SamplerURIs uris;
+
+ /* Current position in run() */
+ uint32_t frame_offset;
+
+ /* Playback state */
+ sf_count_t frame;
+ bool play;
+} Sampler;
+
+/**
+ An atom-like message used internally to apply/free samples.
+
+ This is only used internally to communicate with the worker, it is never
+ sent to the outside world via a port since it is not POD. It is convenient
+ to use an Atom header so actual atoms can be easily sent through the same
+ ringbuffer.
+*/
+typedef struct {
+ LV2_Atom atom;
+ Sample* sample;
+} SampleMessage;
+
+/**
+ Load a new sample and return it.
+
+ Since this is of course not a real-time safe action, this is called in the
+ worker thread only. The sample is loaded and returned only, plugin state is
+ not modified.
+*/
+static Sample*
+load_sample(Sampler* self, const char* path)
+{
+ const size_t path_len = strlen(path);
+
+ lv2_log_trace(&self->logger, "Loading sample %s\n", path);
+
+ Sample* const sample = (Sample*)malloc(sizeof(Sample));
+ SF_INFO* const info = &sample->info;
+ SNDFILE* const sndfile = sf_open(path, SFM_READ, info);
+
+ if (!sndfile || !info->frames || (info->channels != 1)) {
+ lv2_log_error(&self->logger, "Failed to open sample '%s'\n", path);
+ free(sample);
+ return NULL;
+ }
+
+ /* Read data */
+ float* const data = malloc(sizeof(float) * info->frames);
+ if (!data) {
+ lv2_log_error(&self->logger, "Failed to allocate memory for sample\n");
+ return NULL;
+ }
+ sf_seek(sndfile, 0ul, SEEK_SET);
+ sf_read_float(sndfile, data, info->frames);
+ sf_close(sndfile);
+
+ /* Fill sample struct and return it. */
+ sample->data = data;
+ sample->path = (char*)malloc(path_len + 1);
+ sample->path_len = path_len;
+ memcpy(sample->path, path, path_len + 1);
+
+ return sample;
+}
+
+static void
+free_sample(Sampler* self, Sample* sample)
+{
+ if (sample) {
+ lv2_log_trace(&self->logger, "Freeing %s\n", sample->path);
+ free(sample->path);
+ free(sample->data);
+ free(sample);
+ }
+}
+
+/**
+ Do work in a non-realtime thread.
+
+ This is called for every piece of work scheduled in the audio thread using
+ self->schedule->schedule_work(). A reply can be sent back to the audio
+ thread using the provided respond function.
+*/
+static LV2_Worker_Status
+work(LV2_Handle instance,
+ LV2_Worker_Respond_Function respond,
+ LV2_Worker_Respond_Handle handle,
+ uint32_t size,
+ const void* data)
+{
+ Sampler* self = (Sampler*)instance;
+ const LV2_Atom* atom = (const LV2_Atom*)data;
+ if (atom->type == self->uris.eg_freeSample) {
+ /* Free old sample */
+ const SampleMessage* msg = (const SampleMessage*)data;
+ free_sample(self, msg->sample);
+ } else {
+ /* Handle set message (load sample). */
+ const LV2_Atom_Object* obj = (const LV2_Atom_Object*)data;
+
+ /* Get file path from message */
+ const LV2_Atom* file_path = read_set_file(&self->uris, obj);
+ if (!file_path) {
+ return LV2_WORKER_ERR_UNKNOWN;
+ }
+
+ /* Load sample. */
+ Sample* sample = load_sample(self, LV2_ATOM_BODY_CONST(file_path));
+ if (sample) {
+ /* Loaded sample, send it to run() to be applied. */
+ respond(handle, sizeof(sample), &sample);
+ }
+ }
+
+ return LV2_WORKER_SUCCESS;
+}
+
+/**
+ Handle a response from work() in the audio thread.
+
+ When running normally, this will be called by the host after run(). When
+ freewheeling, this will be called immediately at the point the work was
+ scheduled.
+*/
+static LV2_Worker_Status
+work_response(LV2_Handle instance,
+ uint32_t size,
+ const void* data)
+{
+ Sampler* self = (Sampler*)instance;
+
+ SampleMessage msg = { { sizeof(Sample*), self->uris.eg_freeSample },
+ self->sample };
+
+ /* Send a message to the worker to free the current sample */
+ self->schedule->schedule_work(self->schedule->handle, sizeof(msg), &msg);
+
+ /* Install the new sample */
+ self->sample = *(Sample*const*)data;
+
+ /* Send a notification that we're using a new sample. */
+ lv2_atom_forge_frame_time(&self->forge, self->frame_offset);
+ write_set_file(&self->forge, &self->uris,
+ self->sample->path,
+ self->sample->path_len);
+
+ return LV2_WORKER_SUCCESS;
+}
+
+static void
+connect_port(LV2_Handle instance,
+ uint32_t port,
+ void* data)
+{
+ Sampler* self = (Sampler*)instance;
+ switch (port) {
+ case SAMPLER_CONTROL:
+ self->control_port = (const LV2_Atom_Sequence*)data;
+ break;
+ case SAMPLER_NOTIFY:
+ self->notify_port = (LV2_Atom_Sequence*)data;
+ break;
+ case SAMPLER_OUT:
+ self->output_port = (float*)data;
+ break;
+ default:
+ break;
+ }
+}
+
+static LV2_Handle
+instantiate(const LV2_Descriptor* descriptor,
+ double rate,
+ const char* path,
+ const LV2_Feature* const* features)
+{
+ /* Allocate and initialise instance structure. */
+ Sampler* self = (Sampler*)malloc(sizeof(Sampler));
+ if (!self) {
+ return NULL;
+ }
+ memset(self, 0, sizeof(Sampler));
+
+ /* Get host features */
+ for (int i = 0; features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_URID__map)) {
+ self->map = (LV2_URID_Map*)features[i]->data;
+ } else if (!strcmp(features[i]->URI, LV2_WORKER__schedule)) {
+ self->schedule = (LV2_Worker_Schedule*)features[i]->data;
+ } else if (!strcmp(features[i]->URI, LV2_LOG__log)) {
+ self->log = (LV2_Log_Log*)features[i]->data;
+ }
+ }
+ if (!self->map) {
+ lv2_log_error(&self->logger, "Missing feature urid:map\n");
+ goto fail;
+ } else if (!self->schedule) {
+ lv2_log_error(&self->logger, "Missing feature work:schedule\n");
+ goto fail;
+ }
+
+ /* Map URIs and initialise forge/logger */
+ map_sampler_uris(self->map, &self->uris);
+ lv2_atom_forge_init(&self->forge, self->map);
+ lv2_log_logger_init(&self->logger, self->map, self->log);
+
+ /* Load the default sample file */
+ const size_t path_len = strlen(path);
+ const size_t file_len = strlen(default_sample_file);
+ const size_t len = path_len + file_len;
+ char* sample_path = (char*)malloc(len + 1);
+ snprintf(sample_path, len + 1, "%s%s", path, default_sample_file);
+ self->sample = load_sample(self, sample_path);
+ free(sample_path);
+
+ return (LV2_Handle)self;
+
+fail:
+ free(self);
+ return 0;
+}
+
+static void
+cleanup(LV2_Handle instance)
+{
+ Sampler* self = (Sampler*)instance;
+ free_sample(self, self->sample);
+ free(self);
+}
+
+static void
+run(LV2_Handle instance,
+ uint32_t sample_count)
+{
+ Sampler* self = (Sampler*)instance;
+ SamplerURIs* uris = &self->uris;
+ sf_count_t start_frame = 0;
+ sf_count_t pos = 0;
+ float* output = self->output_port;
+
+ /* Set up forge to write directly to notify output port. */
+ const uint32_t notify_capacity = self->notify_port->atom.size;
+ lv2_atom_forge_set_buffer(&self->forge,
+ (uint8_t*)self->notify_port,
+ notify_capacity);
+
+ /* Start a sequence in the notify output port. */
+ lv2_atom_forge_sequence_head(&self->forge, &self->notify_frame, 0);
+
+ /* Read incoming events */
+ LV2_ATOM_SEQUENCE_FOREACH(self->control_port, ev) {
+ self->frame_offset = ev->time.frames;
+ if (ev->body.type == uris->midi_Event) {
+ const uint8_t* const msg = (const uint8_t*)(ev + 1);
+ switch (lv2_midi_message_type(msg)) {
+ case LV2_MIDI_MSG_NOTE_ON:
+ start_frame = ev->time.frames;
+ self->frame = 0;
+ self->play = true;
+ break;
+ default:
+ break;
+ }
+ } else if (is_object_type(uris, ev->body.type)) {
+ const LV2_Atom_Object* obj = (LV2_Atom_Object*)&ev->body;
+ if (obj->body.otype == uris->patch_Set) {
+ /* Received a set message, send it to the worker. */
+ lv2_log_trace(&self->logger, "Queueing set message\n");
+ self->schedule->schedule_work(self->schedule->handle,
+ lv2_atom_total_size(&ev->body),
+ &ev->body);
+ } else {
+ lv2_log_trace(&self->logger,
+ "Unknown object type %d\n", obj->body.otype);
+ }
+ } else {
+ lv2_log_trace(&self->logger,
+ "Unknown event type %d\n", ev->body.type);
+ }
+ }
+
+ /* Render the sample (possibly already in progress) */
+ if (self->play) {
+ uint32_t f = self->frame;
+ const uint32_t lf = self->sample->info.frames;
+
+ for (pos = 0; pos < start_frame; ++pos) {
+ output[pos] = 0;
+ }
+
+ for (; pos < sample_count && f < lf; ++pos, ++f) {
+ output[pos] = self->sample->data[f];
+ }
+
+ self->frame = f;
+
+ if (f == lf) {
+ self->play = false;
+ }
+ }
+
+ /* Add zeros to end if sample not long enough (or not playing) */
+ for (; pos < sample_count; ++pos) {
+ output[pos] = 0.0f;
+ }
+}
+
+static LV2_State_Status
+save(LV2_Handle instance,
+ LV2_State_Store_Function store,
+ LV2_State_Handle handle,
+ uint32_t flags,
+ const LV2_Feature* const* features)
+{
+ Sampler* self = (Sampler*)instance;
+ if (!self->sample) {
+ return LV2_STATE_SUCCESS;
+ }
+
+ LV2_State_Map_Path* map_path = NULL;
+ for (int i = 0; features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_STATE__mapPath)) {
+ map_path = (LV2_State_Map_Path*)features[i]->data;
+ }
+ }
+
+ char* apath = map_path->abstract_path(map_path->handle, self->sample->path);
+
+ store(handle,
+ self->uris.eg_sample,
+ apath,
+ strlen(self->sample->path) + 1,
+ self->uris.atom_Path,
+ LV2_STATE_IS_POD | LV2_STATE_IS_PORTABLE);
+
+ free(apath);
+
+ return LV2_STATE_SUCCESS;
+}
+
+static LV2_State_Status
+restore(LV2_Handle instance,
+ LV2_State_Retrieve_Function retrieve,
+ LV2_State_Handle handle,
+ uint32_t flags,
+ const LV2_Feature* const* features)
+{
+ Sampler* self = (Sampler*)instance;
+
+ size_t size;
+ uint32_t type;
+ uint32_t valflags;
+
+ const void* value = retrieve(
+ handle,
+ self->uris.eg_sample,
+ &size, &type, &valflags);
+
+ if (value) {
+ const char* path = (const char*)value;
+ lv2_log_trace(&self->logger, "Restoring file %s\n", path);
+ free_sample(self, self->sample);
+ self->sample = load_sample(self, path);
+ }
+
+ return LV2_STATE_SUCCESS;
+}
+
+static const void*
+extension_data(const char* uri)
+{
+ static const LV2_State_Interface state = { save, restore };
+ static const LV2_Worker_Interface worker = { work, work_response, NULL };
+ if (!strcmp(uri, LV2_STATE__interface)) {
+ return &state;
+ } else if (!strcmp(uri, LV2_WORKER__interface)) {
+ return &worker;
+ }
+ return NULL;
+}
+
+static const LV2_Descriptor descriptor = {
+ EG_SAMPLER_URI,
+ instantiate,
+ connect_port,
+ NULL, // activate,
+ run,
+ NULL, // deactivate,
+ cleanup,
+ extension_data
+};
+
+LV2_SYMBOL_EXPORT
+const LV2_Descriptor* lv2_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
diff --git a/plugins/eg04-sampler.lv2/sampler.ttl b/plugins/eg04-sampler.lv2/sampler.ttl
new file mode 100644
index 0000000..e008de0
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/sampler.ttl
@@ -0,0 +1,83 @@
+# LV2 Sampler Example Plugin
+# Copyright 2011-2012 David Robillard <d@drobilla.net>
+# Copyright 2011 Gabriel M. Beddingfield <gabriel@teuton.org>
+# Copyright 2011 James Morris <jwm.art.net@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.
+
+@prefix atom: <http://lv2plug.in/ns/ext/atom#> .
+@prefix doap: <http://usefulinc.com/ns/doap#> .
+@prefix lv2: <http://lv2plug.in/ns/lv2core#> .
+@prefix patch: <http://lv2plug.in/ns/ext/patch#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix state: <http://lv2plug.in/ns/ext/state#> .
+@prefix ui: <http://lv2plug.in/ns/extensions/ui#> .
+@prefix urid: <http://lv2plug.in/ns/ext/urid#> .
+@prefix work: <http://lv2plug.in/ns/ext/worker#> .
+
+<http://lv2plug.in/plugins/eg-sampler#sample>
+ a lv2:Parameter ;
+ rdfs:label "sample" ;
+ rdfs:range atom:Path .
+
+<http://lv2plug.in/plugins/eg-sampler>
+ a lv2:Plugin ;
+ doap:name "Example Sampler" ;
+ doap:license <http://opensource.org/licenses/isc> ;
+ lv2:project <http://lv2plug.in/ns/lv2> ;
+ lv2:requiredFeature urid:map ,
+ work:schedule ;
+ lv2:optionalFeature lv2:hardRTCapable ,
+ state:loadDefaultState ;
+ lv2:extensionData state:interface ,
+ work:interface ;
+ ui:ui <http://lv2plug.in/plugins/eg-sampler#ui> ;
+ patch:writable <http://lv2plug.in/plugins/eg-sampler#sample> ;
+ lv2:port [
+ a lv2:InputPort ,
+ atom:AtomPort ;
+ atom:bufferType atom:Sequence ;
+ atom:supports <http://lv2plug.in/ns/ext/midi#MidiEvent> ,
+ patch:Message ;
+ lv2:designation lv2:control ;
+ lv2:index 0 ;
+ lv2:symbol "control" ;
+ lv2:name "Control"
+ ] , [
+ a lv2:OutputPort ,
+ atom:AtomPort ;
+ atom:bufferType atom:Sequence ;
+ atom:supports patch:Message ;
+ lv2:designation lv2:control ;
+ lv2:index 1 ;
+ lv2:symbol "notify" ;
+ lv2:name "Notify"
+ ] , [
+ a lv2:AudioPort ,
+ lv2:OutputPort ;
+ lv2:index 2 ;
+ lv2:symbol "out" ;
+ lv2:name "Out"
+ ] ;
+ state:state [
+ <http://lv2plug.in/plugins/eg-sampler#sample> <click.wav>
+ ] .
+
+<http://lv2plug.in/plugins/eg-sampler#ui>
+ a ui:GtkUI ;
+ lv2:requiredFeature urid:map ;
+ ui:portNotification [
+ ui:plugin <http://lv2plug.in/plugins/eg-sampler> ;
+ lv2:symbol "notify" ;
+ ui:notifyType atom:Blank
+ ] .
diff --git a/plugins/eg04-sampler.lv2/sampler_ui.c b/plugins/eg04-sampler.lv2/sampler_ui.c
new file mode 100644
index 0000000..40922ae
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/sampler_ui.c
@@ -0,0 +1,201 @@
+/*
+ LV2 Sampler Example Plugin UI
+ Copyright 2011-2012 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.
+*/
+
+/**
+ @file ui.c Sampler Plugin UI
+*/
+
+#include <stdlib.h>
+
+#include <gtk/gtk.h>
+
+#include "lv2/lv2plug.in/ns/ext/atom/atom.h"
+#include "lv2/lv2plug.in/ns/ext/atom/forge.h"
+#include "lv2/lv2plug.in/ns/ext/atom/util.h"
+#include "lv2/lv2plug.in/ns/ext/patch/patch.h"
+#include "lv2/lv2plug.in/ns/ext/urid/urid.h"
+#include "lv2/lv2plug.in/ns/extensions/ui/ui.h"
+
+#include "./uris.h"
+
+#define SAMPLER_UI_URI "http://lv2plug.in/plugins/eg-sampler#ui"
+
+typedef struct {
+ LV2_Atom_Forge forge;
+
+ LV2_URID_Map* map;
+ SamplerURIs uris;
+
+ LV2UI_Write_Function write;
+ LV2UI_Controller controller;
+
+ GtkWidget* box;
+ GtkWidget* button;
+ GtkWidget* label;
+} SamplerUI;
+
+static void
+on_load_clicked(GtkWidget* widget,
+ void* handle)
+{
+ SamplerUI* ui = (SamplerUI*)handle;
+
+ /* Create a dialog to select a sample file. */
+ GtkWidget* dialog = gtk_file_chooser_dialog_new(
+ "Load Sample",
+ NULL,
+ GTK_FILE_CHOOSER_ACTION_OPEN,
+ GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+ GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
+ NULL);
+
+ /* Run the dialog, and return if it is cancelled. */
+ if (gtk_dialog_run(GTK_DIALOG(dialog)) != GTK_RESPONSE_ACCEPT) {
+ gtk_widget_destroy(dialog);
+ return;
+ }
+
+ /* Get the file path from the dialog. */
+ char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
+
+ /* Got what we need, destroy the dialog. */
+ gtk_widget_destroy(dialog);
+
+#define OBJ_BUF_SIZE 1024
+ uint8_t obj_buf[OBJ_BUF_SIZE];
+ lv2_atom_forge_set_buffer(&ui->forge, obj_buf, OBJ_BUF_SIZE);
+
+ LV2_Atom* msg = write_set_file(&ui->forge, &ui->uris,
+ filename, strlen(filename));
+
+ ui->write(ui->controller, 0, lv2_atom_total_size(msg),
+ ui->uris.atom_eventTransfer,
+ msg);
+
+ g_free(filename);
+}
+
+static LV2UI_Handle
+instantiate(const LV2UI_Descriptor* descriptor,
+ const char* plugin_uri,
+ const char* bundle_path,
+ LV2UI_Write_Function write_function,
+ LV2UI_Controller controller,
+ LV2UI_Widget* widget,
+ const LV2_Feature* const* features)
+{
+ SamplerUI* ui = (SamplerUI*)malloc(sizeof(SamplerUI));
+ ui->map = NULL;
+ ui->write = write_function;
+ ui->controller = controller;
+ ui->box = NULL;
+ ui->button = NULL;
+ ui->label = NULL;
+
+ *widget = NULL;
+
+ for (int i = 0; features[i]; ++i) {
+ if (!strcmp(features[i]->URI, LV2_URID_URI "#map")) {
+ ui->map = (LV2_URID_Map*)features[i]->data;
+ }
+ }
+
+ if (!ui->map) {
+ fprintf(stderr, "sampler_ui: Host does not support urid:Map\n");
+ free(ui);
+ return NULL;
+ }
+
+ map_sampler_uris(ui->map, &ui->uris);
+
+ lv2_atom_forge_init(&ui->forge, ui->map);
+
+ ui->box = gtk_vbox_new(FALSE, 4);
+ ui->label = gtk_label_new("?");
+ ui->button = gtk_button_new_with_label("Load Sample");
+ gtk_box_pack_start(GTK_BOX(ui->box), ui->label, TRUE, TRUE, 4);
+ gtk_box_pack_start(GTK_BOX(ui->box), ui->button, FALSE, FALSE, 4);
+ g_signal_connect(ui->button, "clicked",
+ G_CALLBACK(on_load_clicked),
+ ui);
+
+ *widget = ui->box;
+
+ return ui;
+}
+
+static void
+cleanup(LV2UI_Handle handle)
+{
+ SamplerUI* ui = (SamplerUI*)handle;
+ gtk_widget_destroy(ui->button);
+ free(ui);
+}
+
+static void
+port_event(LV2UI_Handle handle,
+ uint32_t port_index,
+ uint32_t buffer_size,
+ uint32_t format,
+ const void* buffer)
+{
+ SamplerUI* ui = (SamplerUI*)handle;
+ if (format == ui->uris.atom_eventTransfer) {
+ LV2_Atom* atom = (LV2_Atom*)buffer;
+ if (atom->type == ui->uris.atom_Blank) {
+ LV2_Atom_Object* obj = (LV2_Atom_Object*)atom;
+ const LV2_Atom* file_uri = read_set_file(&ui->uris, obj);
+ if (!file_uri) {
+ fprintf(stderr, "Unknown message sent to UI.\n");
+ return;
+ }
+
+ const char* uri = (const char*)LV2_ATOM_BODY(file_uri);
+ gtk_label_set_text(GTK_LABEL(ui->label), uri);
+ } else {
+ fprintf(stderr, "Unknown message type.\n");
+ }
+ } else {
+ fprintf(stderr, "Unknown format.\n");
+ }
+}
+
+static const void*
+extension_data(const char* uri)
+{
+ return NULL;
+}
+
+static const LV2UI_Descriptor descriptor = {
+ SAMPLER_UI_URI,
+ instantiate,
+ cleanup,
+ port_event,
+ extension_data
+};
+
+LV2_SYMBOL_EXPORT
+const LV2UI_Descriptor*
+lv2ui_descriptor(uint32_t index)
+{
+ switch (index) {
+ case 0:
+ return &descriptor;
+ default:
+ return NULL;
+ }
+}
diff --git a/plugins/eg04-sampler.lv2/uris.h b/plugins/eg04-sampler.lv2/uris.h
new file mode 100644
index 0000000..e2ec6d0
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/uris.h
@@ -0,0 +1,142 @@
+/*
+ LV2 Sampler Example Plugin
+ Copyright 2011-2012 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.
+*/
+
+#ifndef SAMPLER_URIS_H
+#define SAMPLER_URIS_H
+
+#include "lv2/lv2plug.in/ns/ext/log/log.h"
+#include "lv2/lv2plug.in/ns/ext/midi/midi.h"
+#include "lv2/lv2plug.in/ns/ext/state/state.h"
+
+#define EG_SAMPLER_URI "http://lv2plug.in/plugins/eg-sampler"
+#define EG_SAMPLER__sample EG_SAMPLER_URI "#sample"
+#define EG_SAMPLER__applySample EG_SAMPLER_URI "#applySample"
+#define EG_SAMPLER__freeSample EG_SAMPLER_URI "#freeSample"
+
+typedef struct {
+ LV2_URID atom_Blank;
+ LV2_URID atom_Path;
+ LV2_URID atom_Resource;
+ LV2_URID atom_Sequence;
+ LV2_URID atom_URID;
+ LV2_URID atom_eventTransfer;
+ LV2_URID eg_applySample;
+ LV2_URID eg_sample;
+ LV2_URID eg_freeSample;
+ LV2_URID midi_Event;
+ LV2_URID patch_Set;
+ LV2_URID patch_property;
+ LV2_URID patch_value;
+} SamplerURIs;
+
+static inline void
+map_sampler_uris(LV2_URID_Map* map, SamplerURIs* uris)
+{
+ uris->atom_Blank = map->map(map->handle, LV2_ATOM__Blank);
+ uris->atom_Path = map->map(map->handle, LV2_ATOM__Path);
+ uris->atom_Resource = map->map(map->handle, LV2_ATOM__Resource);
+ uris->atom_Sequence = map->map(map->handle, LV2_ATOM__Sequence);
+ uris->atom_URID = map->map(map->handle, LV2_ATOM__URID);
+ uris->atom_eventTransfer = map->map(map->handle, LV2_ATOM__eventTransfer);
+ uris->eg_applySample = map->map(map->handle, EG_SAMPLER__applySample);
+ uris->eg_freeSample = map->map(map->handle, EG_SAMPLER__freeSample);
+ uris->eg_sample = map->map(map->handle, EG_SAMPLER__sample);
+ uris->midi_Event = map->map(map->handle, LV2_MIDI__MidiEvent);
+ uris->patch_Set = map->map(map->handle, LV2_PATCH__Set);
+ uris->patch_property = map->map(map->handle, LV2_PATCH__property);
+ uris->patch_value = map->map(map->handle, LV2_PATCH__value);
+}
+
+static inline bool
+is_object_type(const SamplerURIs* uris, LV2_URID type)
+{
+ return type == uris->atom_Resource
+ || type == uris->atom_Blank;
+}
+
+/**
+ * Write a message like the following to @p forge:
+ * []
+ * a patch:Set ;
+ * patch:property eg:sample ;
+ * patch:value </home/me/foo.wav> .
+ */
+static inline LV2_Atom*
+write_set_file(LV2_Atom_Forge* forge,
+ const SamplerURIs* uris,
+ const char* filename,
+ const size_t filename_len)
+{
+ LV2_Atom_Forge_Frame frame;
+ LV2_Atom* set = (LV2_Atom*)lv2_atom_forge_blank(
+ forge, &frame, 1, uris->patch_Set);
+
+ lv2_atom_forge_property_head(forge, uris->patch_property, 0);
+ lv2_atom_forge_urid(forge, uris->eg_sample);
+ lv2_atom_forge_property_head(forge, uris->patch_value, 0);
+ lv2_atom_forge_path(forge, filename, filename_len);
+
+ lv2_atom_forge_pop(forge, &frame);
+
+ return set;
+}
+
+/**
+ * Get the file path from a message like:
+ * []
+ * a patch:Set ;
+ * patch:property eg:sample ;
+ * patch:value </home/me/foo.wav> .
+ */
+static inline const LV2_Atom*
+read_set_file(const SamplerURIs* uris,
+ const LV2_Atom_Object* obj)
+{
+ if (obj->body.otype != uris->patch_Set) {
+ fprintf(stderr, "Ignoring unknown message type %d\n", obj->body.otype);
+ return NULL;
+ }
+
+ /* Get property URI. */
+ const LV2_Atom* property = NULL;
+ lv2_atom_object_get(obj, uris->patch_property, &property, 0);
+ if (!property) {
+ fprintf(stderr, "Malformed set message has no body.\n");
+ return NULL;
+ } else if (property->type != uris->atom_URID) {
+ fprintf(stderr, "Malformed set message has non-URID property.\n");
+ return NULL;
+ } else if (((LV2_Atom_URID*)property)->body != uris->eg_sample) {
+ fprintf(stderr, "Set message for unknown property.\n");
+ return NULL;
+ }
+
+ /* Get value. */
+ const LV2_Atom* file_path = NULL;
+ lv2_atom_object_get(obj, uris->patch_value, &file_path, 0);
+ if (!file_path) {
+ fprintf(stderr, "Malformed set message has no value.\n");
+ return NULL;
+ } else if (file_path->type != uris->atom_Path) {
+ fprintf(stderr, "Set message value is not a Path.\n");
+ return NULL;
+ }
+
+ return file_path;
+}
+
+#endif /* SAMPLER_URIS_H */
diff --git a/plugins/eg04-sampler.lv2/waf b/plugins/eg04-sampler.lv2/waf
new file mode 120000
index 0000000..59a1ac9
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/waf
@@ -0,0 +1 @@
+../../waf
\ No newline at end of file
diff --git a/plugins/eg04-sampler.lv2/wscript b/plugins/eg04-sampler.lv2/wscript
new file mode 100644
index 0000000..732c904
--- /dev/null
+++ b/plugins/eg04-sampler.lv2/wscript
@@ -0,0 +1,80 @@
+#!/usr/bin/env python
+from waflib.extras import autowaf as autowaf
+import re
+
+# Variables for 'waf dist'
+APPNAME = 'eg-sampler.lv2'
+VERSION = '1.0.0'
+
+# Mandatory variables
+top = '.'
+out = 'build'
+
+def options(opt):
+ opt.load('compiler_c')
+ autowaf.set_options(opt)
+
+def configure(conf):
+ conf.load('compiler_c')
+ autowaf.configure(conf)
+ autowaf.set_c99_mode(conf)
+ autowaf.display_header('Sampler Configuration')
+
+ if not autowaf.is_child():
+ autowaf.check_pkg(conf, 'lv2', atleast_version='1.2.1', uselib_store='LV2')
+
+ autowaf.check_pkg(conf, 'sndfile', uselib_store='SNDFILE',
+ atleast_version='1.0.0', mandatory=True)
+ autowaf.check_pkg(conf, 'gtk+-2.0', uselib_store='GTK2',
+ atleast_version='2.18.0', mandatory=False)
+
+ autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR)
+ print('')
+
+def build(bld):
+ bundle = 'eg-sampler.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-sampler.lv2)
+ for i in ['sampler.ttl', 'click.wav']:
+ bld(features = 'subst',
+ is_copy = True,
+ source = i,
+ target = '%s/%s' % (bundle, i),
+ install_path = '${LV2DIR}/%s' % bundle)
+
+ # Use LV2 headers from parent directory if building as a sub-project
+ includes = ['.']
+ if autowaf.is_child:
+ includes += ['../..']
+
+ # Build plugin library
+ obj = bld(features = 'c cshlib',
+ source = 'sampler.c',
+ name = 'sampler',
+ target = '%s/sampler' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle,
+ use = 'SNDFILE LV2',
+ includes = includes)
+ obj.env.cshlib_PATTERN = module_pat
+
+ # Build UI library
+ if bld.is_defined('HAVE_GTK2'):
+ obj = bld(features = 'c cshlib',
+ source = 'sampler_ui.c',
+ name = 'sampler_ui',
+ target = '%s/sampler_ui' % bundle,
+ install_path = '${LV2DIR}/%s' % bundle,
+ use = 'GTK2 LV2',
+ includes = includes)
+ obj.env.cshlib_PATTERN = module_pat
--
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