diff options
Diffstat (limited to 'plugins/eg-amp.lv2')
| -rw-r--r-- | plugins/eg-amp.lv2/amp.c | 134 | ||||
| -rw-r--r-- | plugins/eg-amp.lv2/meson.build | 41 | ||||
| l--------- | plugins/eg-amp.lv2/waf | 1 | ||||
| -rw-r--r-- | plugins/eg-amp.lv2/wscript | 51 |
4 files changed, 95 insertions, 132 deletions
diff --git a/plugins/eg-amp.lv2/amp.c b/plugins/eg-amp.lv2/amp.c index c3ba279..90a5769 100644 --- a/plugins/eg-amp.lv2/amp.c +++ b/plugins/eg-amp.lv2/amp.c @@ -1,19 +1,6 @@ -/* - 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. -*/ +// Copyright 2006-2016 David Robillard <d@drobilla.net> +// Copyright 2006 Steve Harris <steve@plugin.org.uk> +// SPDX-License-Identifier: ISC /** LV2 headers are based on the URI of the specification they come from, so a @@ -42,11 +29,7 @@ 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; +typedef enum { AMP_GAIN = 0, AMP_INPUT = 1, AMP_OUTPUT = 2 } PortIndex; /** Every plugin defines a private structure for the plugin instance. All data @@ -55,10 +38,10 @@ typedef enum { stored, since there is no additional instance data. */ typedef struct { - // Port buffers - const float* gain; - const float* input; - float* output; + // Port buffers + const float* gain; + const float* input; + float* output; } Amp; /** @@ -77,9 +60,9 @@ instantiate(const LV2_Descriptor* descriptor, const char* bundle_path, const LV2_Feature* const* features) { - Amp* amp = (Amp*)calloc(1, sizeof(Amp)); + Amp* amp = (Amp*)calloc(1, sizeof(Amp)); - return (LV2_Handle)amp; + return (LV2_Handle)amp; } /** @@ -91,23 +74,21 @@ instantiate(const LV2_Descriptor* descriptor, context as run(). */ static void -connect_port(LV2_Handle instance, - uint32_t port, - void* data) +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; - } + 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; + } } /** @@ -121,11 +102,10 @@ connect_port(LV2_Handle instance, */ 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) +#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 @@ -136,34 +116,33 @@ activate(LV2_Handle instance) static void run(LV2_Handle instance, uint32_t n_samples) { - const Amp* amp = (const Amp*)instance; + const Amp* amp = (const Amp*)instance; - const float gain = *(amp->gain); - const float* const input = amp->input; - float* const output = amp->output; + const float gain = *(amp->gain); + const float* const input = amp->input; + float* const output = amp->output; - const float coef = DB_CO(gain); + const float coef = DB_CO(gain); - for (uint32_t pos = 0; pos < n_samples; pos++) { - output[pos] = input[pos] * coef; - } + 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. + 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()`). @@ -174,7 +153,7 @@ deactivate(LV2_Handle instance) static void cleanup(LV2_Handle instance) { - free(instance); + free(instance); } /** @@ -190,7 +169,7 @@ cleanup(LV2_Handle instance) static const void* extension_data(const char* uri) { - return NULL; + return NULL; } /** @@ -198,22 +177,20 @@ extension_data(const char* uri) 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 -}; +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 + 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 + identifier, 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 @@ -223,8 +200,5 @@ LV2_SYMBOL_EXPORT const LV2_Descriptor* lv2_descriptor(uint32_t index) { - switch (index) { - case 0: return &descriptor; - default: return NULL; - } + return index == 0 ? &descriptor : NULL; } diff --git a/plugins/eg-amp.lv2/meson.build b/plugins/eg-amp.lv2/meson.build new file mode 100644 index 0000000..726038e --- /dev/null +++ b/plugins/eg-amp.lv2/meson.build @@ -0,0 +1,41 @@ +# Copyright 2022 David Robillard <d@drobilla.net> +# SPDX-License-Identifier: 0BSD OR ISC + +plugin_sources = files('amp.c') +bundle_name = 'eg-amp.lv2' +data_filenames = ['manifest.ttl.in', 'amp.ttl'] + +module = shared_library( + 'amp', + plugin_sources, + c_args: c_suppressions, + dependencies: [lv2_dep, m_dep], + gnu_symbol_visibility: 'hidden', + install: true, + install_dir: lv2dir / bundle_name, + name_prefix: '', +) + +config = configuration_data( + { + 'LIB_EXT': '.' + module.full_path().split('.')[-1], + }, +) + +foreach filename : data_filenames + if filename.endswith('.in') + configure_file( + configuration: config, + input: files(filename), + install_dir: lv2dir / bundle_name, + output: filename.substring(0, -3), + ) + else + configure_file( + copy: true, + input: files(filename), + install_dir: lv2dir / bundle_name, + output: filename, + ) + endif +endforeach 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') |