diff options
Diffstat (limited to 'plugins/eg-amp.lv2')
| -rw-r--r-- | plugins/eg-amp.lv2/README.txt | 19 | ||||
| -rw-r--r-- | plugins/eg-amp.lv2/amp.c | 217 | ||||
| -rw-r--r-- | plugins/eg-amp.lv2/amp.ttl | 90 | ||||
| -rw-r--r-- | plugins/eg-amp.lv2/manifest.ttl.in | 68 | ||||
| l--------- | plugins/eg-amp.lv2/waf | 1 | ||||
| -rw-r--r-- | plugins/eg-amp.lv2/wscript | 51 |
6 files changed, 0 insertions, 446 deletions
diff --git a/plugins/eg-amp.lv2/README.txt b/plugins/eg-amp.lv2/README.txt deleted file mode 100644 index 41683d3..0000000 --- a/plugins/eg-amp.lv2/README.txt +++ /dev/null @@ -1,19 +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 a control port which contains 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. - -Generally, the goal is to keep code minimal, -and describe as much as possible in the static data. -There are several advantages to this approach: - - * Hosts can discover and inspect plugins without loading or executing any plugin code. - * Plugin data can be used from a wide range of generic tools like scripting languages and command line utilities. - * The standard data model allows the use of existing vocabularies to describe plugins and related information. - * The language is extensible, so authors may describe any data without requiring changes to the LV2 specification. - * 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 244825f..0000000 --- a/plugins/eg-amp.lv2/amp.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - Copyright 2006-2016 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. -*/ - -/** - 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/core/lv2.h" - -/** Include standard C headers */ -#include <math.h> -#include <stdint.h> -#include <stdlib.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*)calloc(1, 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) - -/** - The `run()` method is the main process function of the plugin. It processes - a block of audio in the audio context. Since this plugin is - `lv2:hardRTCapable`, `run()` must be real-time safe, so blocking (e.g. with - a mutex) or memory allocation are not allowed. -*/ -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()`, and is 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; -} - -/** - Every plugin must define an `LV2_Descriptor`. 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) -{ - return index == 0 ? &descriptor : NULL; -} diff --git a/plugins/eg-amp.lv2/amp.ttl b/plugins/eg-amp.lv2/amp.ttl deleted file mode 100644 index 9f522a1..0000000 --- a/plugins/eg-amp.lv2/amp.ttl +++ /dev/null @@ -1,90 +0,0 @@ -# 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#> . -@prefix units: <http://lv2plug.in/ns/extensions/units#> . - -# 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"@zh , - "Einfacher Verstärker"@de , - "Simple Amplifier"@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"@zh , - "Verstärkung"@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 ; -# Ports can describe units and control detents to allow better UI generation -# and host automation. - units:unit units:db ; - 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 4a22f95..0000000 --- a/plugins/eg-amp.lv2/manifest.ttl.in +++ /dev/null @@ -1,68 +0,0 @@ -# LV2 plugins are installed in a ``bundle'', a directory with a standard -# structure. Each bundle has a Turtle file named `manifest.ttl` which lists -# the contents of the bundle. -# -# Hosts typically read the manifest of every installed bundle to discover -# plugins on start-up, so it should be as small as possible for performance -# reasons. Details that are only useful if the host chooses to load the plugin -# are stored in other files and linked to from `manifest.ttl`. -# -# ==== URIs ==== -# -# LV2 makes use of URIs as globally-unique identifiers for resources. For -# example, the ID of the plugin described here is -# `<http://lv2plug.in/plugins/eg-amp>`. Note that URIs are only used as -# identifiers and don't necessarily imply that something can be accessed at -# that address on the web (though that may be the case). -# -# ==== Namespace Prefixes ==== -# -# Turtle files contain many URIs, but prefixes can be defined to improve -# readability. For example, with the `lv2:` prefix below, `lv2:Plugin` can be -# written instead of `<http://lv2plug.in/ns/lv2core#Plugin>`. - -@prefix lv2: <http://lv2plug.in/ns/lv2core#> . -@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . - -# ==== Describing a Plugin ==== - -# Turtle files contain a set of ``statements'' which describe resources. -# This file contains 3 statements: -# [options="header"] -# |================================================================ -# | 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> -# |================================================================ - -# Firstly, `<http://lv2plug.in/plugins/eg-amp>` is an LV2 plugin: -<http://lv2plug.in/plugins/eg-amp> a lv2:Plugin . - -# The predicate ```a`'' is a Turtle shorthand for `rdf:type`. - -# The binary of that plugin can be found at `<amp.ext>`: -<http://lv2plug.in/plugins/eg-amp> lv2:binary <amp@LIB_EXT@> . - -# This file is a template; the token `@LIB_EXT@` is replaced by the build -# system with the appropriate extension for the current platform before -# installation. For example, in the output `manifest.ttl`, the binary would be -# listed as `<amp.so>`. Relative URIs in manifests are relative to the bundle -# directory, so this refers to a binary with the given name in the same -# directory as this manifest. - -# Finally, more information about this plugin can be found in `<amp.ttl>`: -<http://lv2plug.in/plugins/eg-amp> rdfs:seeAlso <amp.ttl> . - -# ==== Abbreviation ==== -# -# This file shows these statements individually for instructive purposes, but -# the subject `<http://lv2plug.in/plugins/eg-amp>` is repetitive. Turtle -# allows the semicolon to be used as a delimiter that repeats the previous -# subject. For example, this manifest would more realistically be written like -# so: - -<http://lv2plug.in/plugins/eg-amp> - a lv2:Plugin ; - lv2:binary <amp@LIB_EXT@> ; - rdfs:seeAlso <amp.ttl> . 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 822825d..0000000 --- a/plugins/eg-amp.lv2/wscript +++ /dev/null @@ -1,51 +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') - opt.load('lv2') - autowaf.set_options(opt) - -def configure(conf): - conf.load('compiler_c', cache=True) - conf.load('lv2', cache=True) - conf.load('autowaf', cache=True) - - conf.check_pkg('lv2', uselib_store='LV2') - - conf.check(features='c cshlib', lib='m', uselib_store='M', mandatory=False) - -def build(bld): - bundle = 'eg-amp.lv2' - - # Build manifest.ttl by substitution (for portable lib extension) - bld(features = 'subst', - source = 'manifest.ttl.in', - target = 'lv2/%s/%s' % (bundle, 'manifest.ttl'), - install_path = '${LV2DIR}/%s' % bundle, - LIB_EXT = bld.env.LV2_LIB_EXT) - - # Copy other data files to build bundle (build/eg-amp.lv2) - for i in ['amp.ttl']: - bld(features = 'subst', - is_copy = True, - source = i, - target = 'lv2/%s/%s' % (bundle, i), - install_path = '${LV2DIR}/%s' % bundle) - - # Build plugin library - obj = bld(features = 'c cshlib lv2lib', - source = 'amp.c', - name = 'amp', - target = 'lv2/%s/amp' % bundle, - install_path = '${LV2DIR}/%s' % bundle, - uselib = 'M LV2') |