aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/eg-metro.lv2
diff options
context:
space:
mode:
Diffstat (limited to 'plugins/eg-metro.lv2')
-rw-r--r--plugins/eg-metro.lv2/meson.build42
-rw-r--r--plugins/eg-metro.lv2/metro.c51
l---------plugins/eg-metro.lv2/waf1
-rw-r--r--plugins/eg-metro.lv2/wscript50
4 files changed, 61 insertions, 83 deletions
diff --git a/plugins/eg-metro.lv2/meson.build b/plugins/eg-metro.lv2/meson.build
new file mode 100644
index 0000000..ee4016e
--- /dev/null
+++ b/plugins/eg-metro.lv2/meson.build
@@ -0,0 +1,42 @@
+# Copyright 2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: 0BSD OR ISC
+
+plugin_sources = files('metro.c')
+bundle_name = 'eg-metro.lv2'
+data_filenames = ['manifest.ttl.in', 'metro.ttl']
+
+module = shared_library(
+ 'metro',
+ plugin_sources,
+ c_args: c_suppressions,
+ dependencies: [lv2_dep, m_dep],
+ gnu_symbol_visibility: 'hidden',
+ implicit_include_directories: false,
+ 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-metro.lv2/metro.c b/plugins/eg-metro.lv2/metro.c
index 46ca41b..e60a33f 100644
--- a/plugins/eg-metro.lv2/metro.c
+++ b/plugins/eg-metro.lv2/metro.c
@@ -1,28 +1,14 @@
-/*
- LV2 Metronome Example Plugin
- Copyright 2012-2016 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 "lv2/atom/atom.h"
-#include "lv2/atom/util.h"
-#include "lv2/core/lv2.h"
-#include "lv2/core/lv2_util.h"
-#include "lv2/log/log.h"
-#include "lv2/log/logger.h"
-#include "lv2/time/time.h"
-#include "lv2/urid/urid.h"
+// Copyright 2012-2016 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: ISC
+
+#include <lv2/atom/atom.h>
+#include <lv2/atom/util.h>
+#include <lv2/core/lv2.h>
+#include <lv2/core/lv2_util.h>
+#include <lv2/log/log.h>
+#include <lv2/log/logger.h>
+#include <lv2/time/time.h>
+#include <lv2/urid/urid.h>
#include <math.h>
#include <stdbool.h>
@@ -212,7 +198,8 @@ 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;
+ const uint32_t frames_per_beat = (uint32_t)(60.0f / self->bpm * self->rate);
+ const float attack_den = self->attack_len ? (float)self->attack_len : 1.0f;
if (self->speed == 0.0f) {
memset(output, 0, (end - begin) * sizeof(float));
@@ -223,8 +210,8 @@ play(Metro* self, uint32_t begin, uint32_t end)
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;
+ output[i] =
+ self->wave[self->wave_offset] * (float)self->elapsed_len / attack_den;
if (self->elapsed_len >= self->attack_len) {
self->state = STATE_DECAY;
}
@@ -289,7 +276,7 @@ update_position(Metro* self, const LV2_Atom_Object* obj)
const float frames_per_beat = (float)(60.0 / 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;
+ self->elapsed_len = (uint32_t)(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) {
@@ -313,7 +300,7 @@ run(LV2_Handle instance, uint32_t sample_count)
!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);
+ play(self, last_t, (uint32_t)ev->time.frames);
// Check if this event is an Object
// (or deprecated Blank to tolerate old hosts)
@@ -327,7 +314,7 @@ run(LV2_Handle instance, uint32_t sample_count)
}
// Update time for next iteration and move to next event
- last_t = ev->time.frames;
+ last_t = (uint32_t)ev->time.frames;
}
// Play for remainder of cycle
@@ -346,7 +333,7 @@ static const LV2_Descriptor descriptor = {
};
LV2_SYMBOL_EXPORT const LV2_Descriptor*
- lv2_descriptor(uint32_t index)
+lv2_descriptor(uint32_t index)
{
return index == 0 ? &descriptor : NULL;
}
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 5fb0d07..0000000
--- a/plugins/eg-metro.lv2/wscript
+++ /dev/null
@@ -1,50 +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')
- 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 >= 0.2.0', uselib_store='LV2')
-
- conf.check(features='c cshlib', lib='m', uselib_store='M', mandatory=False)
-
-def build(bld):
- bundle = 'eg-metro.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 = '${LV2DIR}/%s' % bundle,
- LIB_EXT = bld.env.LV2_LIB_EXT)
-
- # Copy other data files to build bundle (build/eg-metro.lv2)
- bld(features = 'subst',
- is_copy = True,
- source = 'metro.ttl',
- target = 'lv2/%s/metro.ttl' % bundle,
- install_path = '${LV2DIR}/%s' % bundle)
-
- # Build plugin library
- obj = bld(features = 'c cshlib lv2lib',
- source = 'metro.c',
- name = 'metro',
- target = 'lv2/%s/metro' % bundle,
- install_path = '${LV2DIR}/%s' % bundle,
- use = ['M', 'LV2'])
generated by cgit v1.2.1 (git 2.18.0) at 2025-07-02 05:13:24 +0000