diff options
Diffstat (limited to 'plugins/eg-amppp.lv2')
| -rw-r--r-- | plugins/eg-amppp.lv2/README.txt | 3 | ||||
| -rw-r--r-- | plugins/eg-amppp.lv2/amppp.cpp | 78 | ||||
| -rw-r--r-- | plugins/eg-amppp.lv2/amppp.ttl | 49 | ||||
| -rw-r--r-- | plugins/eg-amppp.lv2/manifest.ttl.in | 7 | ||||
| l--------- | plugins/eg-amppp.lv2/waf | 1 | ||||
| -rw-r--r-- | plugins/eg-amppp.lv2/wscript | 66 |
6 files changed, 204 insertions, 0 deletions
diff --git a/plugins/eg-amppp.lv2/README.txt b/plugins/eg-amppp.lv2/README.txt new file mode 100644 index 0000000..a5cb36c --- /dev/null +++ b/plugins/eg-amppp.lv2/README.txt @@ -0,0 +1,3 @@ +== Simple C++ Amplifier == + +This is a version of the simple amplifier example, but written in C++. diff --git a/plugins/eg-amppp.lv2/amppp.cpp b/plugins/eg-amppp.lv2/amppp.cpp new file mode 100644 index 0000000..ac939c0 --- /dev/null +++ b/plugins/eg-amppp.lv2/amppp.cpp @@ -0,0 +1,78 @@ +/* + Copyright 2015 David Robillard <d@drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#include <math.h> +#include <stdlib.h> + +#include "lv2/lv2plug.in/ns/lv2core/Plugin.hpp" + +class Amppp : public lv2::Plugin { +public: + Amppp(double rate, + const char* bundle_path, + const LV2_Feature* const* features) + : Plugin(rate, bundle_path, features) + {} + + typedef enum { + AMP_GAIN = 0, + AMP_INPUT = 1, + AMP_OUTPUT = 2 + } PortIndex; + + void connect_port(uint32_t port, void* data) { + switch ((PortIndex)port) { + case AMP_GAIN: + m_ports.gain = (const float*)data; + break; + case AMP_INPUT: + m_ports.input = (const float*)data; + break; + case AMP_OUTPUT: + m_ports.output = (float*)data; + break; + } + } + + #define DB_CO(g) ((g) > -90.0f ? powf(10.0f, (g) * 0.05f) : 0.0f) + + void run(uint32_t n_samples) { + const float coef = DB_CO(*m_ports.gain); + for (uint32_t pos = 0; pos < n_samples; pos++) { + m_ports.output[pos] = m_ports.input[pos] * coef; + } + } + +private: + typedef struct { + const float* gain; + const float* input; + float* output; + } Ports; + + Ports m_ports; +}; + +static const LV2_Descriptor descriptor = lv2::descriptor<Amppp>("http://lv2plug.in/plugins/eg-amppp"); + +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-amppp.lv2/amppp.ttl b/plugins/eg-amppp.lv2/amppp.ttl new file mode 100644 index 0000000..1d90459 --- /dev/null +++ b/plugins/eg-amppp.lv2/amppp.ttl @@ -0,0 +1,49 @@ +@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#> . + +<http://lv2plug.in/plugins/eg-amppp> + a lv2:Plugin , + lv2:AmplifierPlugin ; + lv2:project <http://lv2plug.in/ns/lv2> ; + doap:name "Simple C++ Amplifier" ; + doap:license <http://opensource.org/licenses/isc> ; + lv2:optionalFeature lv2:hardRTCapable ; + lv2:port [ + a lv2:InputPort , + lv2:ControlPort ; + lv2:index 0 ; + lv2:symbol "gain" ; + lv2:name "Gain" ; + lv2:default 0.0 ; + lv2:minimum -90.0 ; + lv2:maximum 24.0 ; + 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-amppp.lv2/manifest.ttl.in b/plugins/eg-amppp.lv2/manifest.ttl.in new file mode 100644 index 0000000..4985490 --- /dev/null +++ b/plugins/eg-amppp.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-amppp> + a lv2:Plugin ; + lv2:binary <amppp@LIB_EXT@> ; + rdfs:seeAlso <amppp.ttl> . diff --git a/plugins/eg-amppp.lv2/waf b/plugins/eg-amppp.lv2/waf new file mode 120000 index 0000000..59a1ac9 --- /dev/null +++ b/plugins/eg-amppp.lv2/waf @@ -0,0 +1 @@ +../../waf
\ No newline at end of file diff --git a/plugins/eg-amppp.lv2/wscript b/plugins/eg-amppp.lv2/wscript new file mode 100644 index 0000000..27b1039 --- /dev/null +++ b/plugins/eg-amppp.lv2/wscript @@ -0,0 +1,66 @@ +#!/usr/bin/env python +from waflib.extras import autowaf as autowaf +import re + +# Variables for 'waf dist' +APPNAME = 'eg-amppp.lv2' +VERSION = '1.0.0' + +# Mandatory variables +top = '.' +out = 'build' + +def options(opt): + opt.load('compiler_cxx') + autowaf.set_options(opt) + +def configure(conf): + conf.load('compiler_cxx') + autowaf.configure(conf) + autowaf.set_c99_mode(conf) + autowaf.display_header('Amppp Configuration') + + if not autowaf.is_child(): + autowaf.check_pkg(conf, 'lv2', uselib_store='LV2') + + conf.check(features='cxx cxxshlib', lib='m', uselib_store='M', mandatory=False) + + autowaf.display_msg(conf, 'LV2 bundle directory', conf.env.LV2DIR) + print('') + +def build(bld): + bundle = 'eg-amppp.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 = '${LV2DIR}/%s' % bundle, + LIB_EXT = module_ext) + + # Copy other data files to build bundle (build/eg-amppp.lv2) + for i in ['amppp.ttl']: + bld(features = 'subst', + is_copy = True, + source = i, + target = '%s/%s' % (bundle, i), + install_path = '${LV2DIR}/%s' % bundle) + + # Use LV2 headers from parent directory if building as a sub-project + includes = None + if autowaf.is_child: + includes = '../..' + + # Build plugin library + obj = bld(features = 'cxx cxxshlib', + source = 'amppp.cpp', + name = 'amppp', + target = '%s/amppp' % bundle, + install_path = '${LV2DIR}/%s' % bundle, + uselib = 'M LV2', + includes = includes) + obj.env.cxxshlib_PATTERN = module_pat |