~hp/vm.lv2

e53f16c215f9bd34bee1b5c21d9aac13c21563d5 — Hanspeter Portner 1 year, 1 month ago
Squashed 'subprojects/timely.lv2/' content from commit 87feff79

git-subtree-dir: subprojects/timely.lv2
git-subtree-split: 87feff79c3429e712e663b45afaa487bc9f73b4f
A  => .build.yml +18 -0
@@ 1,18 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0

image: alpine/latest
packages:
  - reuse
  - meson
  - lv2-dev
tasks:
  - setup: |
      cd timely.lv2
      meson setup build
  - build: |
      cd timely.lv2
      ninja -C build
  - test: |
      cd timely.lv2
      ninja -C build test

A  => .gitignore +5 -0
@@ 1,5 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0

tags
*.taghl

A  => LICENSES/Artistic-2.0.txt +85 -0
@@ 1,85 @@
The Artistic License 2.0

Copyright (c) 2000-2006, The Perl Foundation.

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

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(14)  Disclaimer of Warranty:
THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

A  => LICENSES/CC0-1.0.txt +121 -0
@@ 1,121 @@
Creative Commons Legal Code

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A  => README.md +9 -0
@@ 1,9 @@
<!--
  -- (SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
  -- (SPDX-License-Identifier: CC0-1.0
  -->
# Timely.lv2

## Utility header for time-based LV2 plugins

[![builds.sr.ht status](https://builds.open-music-kontrollers.ch/~hp/timely.lv2/.svg)](https://builds.open-music-kontrollers.ch/~hp/timely.lv2/?)

A  => meson.build +103 -0
@@ 1,103 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0

project('timely.lv2', 'c', default_options : [
	'buildtype=release',
	'warning_level=3',
	'werror=false',
	'b_lto=true',
	'c_std=c11'])

lv2libdir = get_option('lv2libdir')

inst_dir = join_paths(lv2libdir, meson.project_name())

reuse = find_program('reuse', required : false)
cp = find_program('cp')
lv2_validate = find_program('lv2_validate', native : true, required : false)
sord_validate = find_program('sord_validate', native : true, required : false)
lv2lint = find_program('lv2lint', required : false)

add_project_arguments('-D_GNU_SOURCE', language : 'c')

conf_data = configuration_data()
cc = meson.get_compiler('c')

m_dep = cc.find_library('m')
lv2_dep = dependency('lv2', version : '>=1.14.0')

lib_deps = []
lib_deps += m_dep
lib_deps += lv2_dep

lib_incs = []
lib_incs += include_directories('')

lib_srcs = []
lib_srcs += join_paths('src', 'timely.c')

timely_lv2 = declare_dependency(
  include_directories : lib_incs,
  dependencies : lib_deps,
  sources : lib_srcs)

test_args = []
test_args += '-fvisibility=hidden'
test_args += '-ffast-math'

test_deps = []
test_deps += timely_lv2

test_srcs = []
test_srcs += join_paths('test', 'timely.c')

install = not meson.is_subproject()

mod = shared_module('timely', test_srcs,
	c_args : test_args,
	name_prefix : '',
	dependencies : test_deps,
	install : install,
	install_dir : inst_dir)

version = get_option('version').split('.')
conf_data.set('MAJOR_VERSION', version[0])
conf_data.set('MINOR_VERSION', version[1])
conf_data.set('MICRO_VERSION', version[2])

suffix = mod.full_path().strip().split('.')[-1]
conf_data.set('MODULE_SUFFIX', '.' + suffix)

manifest_ttl = configure_file(
  input : join_paths('test', 'manifest.ttl.in'),
  output : 'manifest.ttl',
	configuration : conf_data,
	install : install,
	install_dir : inst_dir)

dsp_ttl = configure_file(
	input : join_paths('test', 'timely.ttl'),
	output : 'timely.ttl',
	copy : true,
	install : install,
	install_dir : inst_dir)

if lv2_validate.found() and sord_validate.found()
	test('LV2 validate', lv2_validate,
		args : [manifest_ttl, dsp_ttl])
endif

if lv2lint.found()
	test('LV2 lint', lv2lint,
    args : ['-M', 'pack',
      '-E', 'warn',
      '-I', meson.current_build_dir(),
			'http://open-music-kontrollers.ch/lv2/timely#test'])
endif

if reuse.found()
  test('REUSE', reuse, args : [
    '--root', meson.current_source_dir(),
    'lint'
  ])
endif

A  => meson_options.txt +8 -0
@@ 1,8 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0
#
option('lv2libdir',
	type : 'string',
	value : 'lib/lv2')

option('version', type : 'string', value : '0.1.97')

A  => src/timely.c +296 -0
@@ 1,296 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <math.h>

#include <timely.lv2/timely.h>

static inline void
_timely_deatomize_body(timely_t *timely, int64_t frames, uint32_t size,
	const LV2_Atom_Object_Body *body)
{
	const LV2_Atom_Float *bar_beat = NULL;
	const LV2_Atom_Long *bar = NULL;
	const LV2_Atom_Int *beat_unit = NULL;
	const LV2_Atom_Float *beats_per_bar = NULL;
	const LV2_Atom_Float *beats_per_minute = NULL;
	const LV2_Atom_Long *frame = NULL;
	const LV2_Atom_Float *frames_per_second = NULL;
	const LV2_Atom_Float *speed = NULL;

	lv2_atom_object_body_get(size, body,
		timely->urid.time_barBeat, &bar_beat,
		timely->urid.time_bar, &bar,
		timely->urid.time_beatUnit, &beat_unit,
		timely->urid.time_beatsPerBar, &beats_per_bar,
		timely->urid.time_beatsPerMinute, &beats_per_minute,
		timely->urid.time_frame, &frame,
		timely->urid.time_framesPerSecond, &frames_per_second,
		timely->urid.time_speed, &speed,
		0);

	// send speed first upon transport stop
	if(speed && (speed->body != timely->pos.speed) && (speed->body == 0.f) )
	{
		timely->pos.speed = speed->body;
		if(timely->mask & TIMELY_MASK_SPEED)
			timely->cb(timely, frames, timely->urid.time_speed, timely->data);
	}

	if(beat_unit)
	{
		const int32_t _beat_unit = beat_unit->body * timely->multiplier;
		if(_beat_unit != timely->pos.beat_unit)
		{
			timely->pos.beat_unit = _beat_unit;
			if(timely->mask & TIMELY_MASK_BEAT_UNIT)
				timely->cb(timely, frames, timely->urid.time_beatUnit, timely->data);
		}
	}

	if(beats_per_bar)
	{
		const float _beats_per_bar = beats_per_bar->body * timely->multiplier;
		if(_beats_per_bar != timely->pos.beats_per_bar)
		{
			timely->pos.beats_per_bar = _beats_per_bar;
			if(timely->mask & TIMELY_MASK_BEATS_PER_BAR)
				timely->cb(timely, frames, timely->urid.time_beatsPerBar, timely->data);
		}
	}

	if(beats_per_minute && (beats_per_minute->body != timely->pos.beats_per_minute) )
	{
		timely->pos.beats_per_minute = beats_per_minute->body;
		if(timely->mask & TIMELY_MASK_BEATS_PER_MINUTE)
			timely->cb(timely, frames, timely->urid.time_beatsPerMinute, timely->data);
	}

	if(frame && (frame->body != timely->pos.frame) )
	{
		timely->pos.frame = frame->body;
		if(timely->mask & TIMELY_MASK_FRAME)
			timely->cb(timely, frames, timely->urid.time_frame, timely->data);
	}

	if(frames_per_second && (frames_per_second->body != timely->pos.frames_per_second) )
	{
		timely->pos.frames_per_second = frames_per_second->body;
		if(timely->mask & TIMELY_MASK_FRAMES_PER_SECOND)
			timely->cb(timely, frames, timely->urid.time_framesPerSecond, timely->data);
	}

	if(bar && (bar->body != timely->pos.bar) )
	{
		timely->pos.bar = bar->body;
		if(timely->mask & TIMELY_MASK_BAR)
			timely->cb(timely, frames, timely->urid.time_bar, timely->data);
	}

	if(bar_beat)
	{
		const float _bar_beat = bar_beat->body * timely->multiplier;
		if(_bar_beat != timely->pos.bar_beat)
		{
			timely->pos.bar_beat = _bar_beat;
			if(timely->mask & TIMELY_MASK_BAR_BEAT)
				timely->cb(timely, frames, timely->urid.time_barBeat, timely->data);
		}
	}

	// send speed last upon transport start
	if(speed && (speed->body != timely->pos.speed) && (speed->body != 0.f) )
	{
		timely->pos.speed = speed->body;
		if(timely->mask & TIMELY_MASK_SPEED)
			timely->cb(timely, frames, timely->urid.time_speed, timely->data);
	}
}

static inline void
_timely_refresh(timely_t *timely)
{
	const float speed = (timely->pos.speed != 0.f)
		? timely->pos.speed
		: 1.f; // prevent divisions through zero later on

	timely->frames_per_beat = 240.0 * timely->pos.frames_per_second
		/ (timely->pos.beats_per_minute * timely->pos.beat_unit * speed);
	timely->frames_per_bar = timely->frames_per_beat * timely->pos.beats_per_bar;

	// bar
	timely->offset.bar = timely->pos.bar_beat * timely->frames_per_beat;

	// beat
	double integral;
	double beat_beat = modf(timely->pos.bar_beat, &integral);
	(void)integral;
	timely->offset.beat = beat_beat * timely->frames_per_beat;
}

void
timely_init(timely_t *timely, LV2_URID_Map *map, double rate,
	timely_mask_t mask, timely_cb_t cb, void *data)
{
	assert(cb != NULL);

	timely->mask = mask;
	timely->cb = cb;
	timely->data = data;

	timely->urid.atom_object = map->map(map->handle, LV2_ATOM__Object);
	timely->urid.atom_blank = map->map(map->handle, LV2_ATOM__Blank);
	timely->urid.atom_resource = map->map(map->handle, LV2_ATOM__Resource);
	timely->urid.time_position = map->map(map->handle, LV2_TIME__Position);
	timely->urid.time_barBeat = map->map(map->handle, LV2_TIME__barBeat);
	timely->urid.time_bar = map->map(map->handle, LV2_TIME__bar);
	timely->urid.time_beatUnit = map->map(map->handle, LV2_TIME__beatUnit);
	timely->urid.time_beatsPerBar = map->map(map->handle, LV2_TIME__beatsPerBar);
	timely->urid.time_beatsPerMinute = map->map(map->handle, LV2_TIME__beatsPerMinute);
	timely->urid.time_frame = map->map(map->handle, LV2_TIME__frame);
	timely->urid.time_framesPerSecond = map->map(map->handle, LV2_TIME__framesPerSecond);
	timely->urid.time_speed = map->map(map->handle, LV2_TIME__speed);

	timely->multiplier = 1.f;

	timely->pos.speed = 0.f;
	timely->pos.bar_beat = 0.f;
	timely->pos.bar = 0;
	timely->pos.beat_unit = 4;
	timely->pos.beats_per_bar = 4.f;
	timely->pos.beats_per_minute = 120.f;
	timely->pos.frame = 0;
	timely->pos.frames_per_second = rate;

	_timely_refresh(timely);

	timely->first = true;
}

void
timely_set_multiplier(timely_t *timely, float multiplier)
{
	const float mul = multiplier / timely->multiplier;

	timely->pos.bar_beat *= mul;
	timely->pos.beat_unit *= mul;
	timely->pos.beats_per_bar *= mul;

	timely->multiplier = multiplier;

	_timely_refresh(timely);

	timely->first = true;
}

int
timely_advance_body(timely_t *timely, uint32_t size, uint32_t type,
	const LV2_Atom_Object_Body *body, uint32_t from, uint32_t to)
{
	if(timely->first)
	{
		timely->first = false;

		// send initial values
		if(timely->mask & TIMELY_MASK_SPEED)
			timely->cb(timely, 0, timely->urid.time_speed, timely->data);

		if(timely->mask & TIMELY_MASK_BEAT_UNIT)
			timely->cb(timely, 0, timely->urid.time_beatUnit, timely->data);

		if(timely->mask & TIMELY_MASK_BEATS_PER_BAR)
			timely->cb(timely, 0, timely->urid.time_beatsPerBar, timely->data);

		if(timely->mask & TIMELY_MASK_BEATS_PER_MINUTE)
			timely->cb(timely, 0, timely->urid.time_beatsPerMinute, timely->data);

		if(timely->mask & TIMELY_MASK_FRAME)
			timely->cb(timely, 0, timely->urid.time_frame, timely->data);

		if(timely->mask & TIMELY_MASK_FRAMES_PER_SECOND)
			timely->cb(timely, 0, timely->urid.time_framesPerSecond, timely->data);

		if(timely->mask & TIMELY_MASK_BAR)
			timely->cb(timely, 0, timely->urid.time_bar, timely->data);

		if(timely->mask & TIMELY_MASK_BAR_BEAT)
			timely->cb(timely, 0, timely->urid.time_barBeat, timely->data);
	}

	// are we rolling?
	if(timely->pos.speed != 0.f)
	{
		if( (timely->offset.bar == 0) && (timely->pos.bar == 0) )
		{
			if(timely->mask & (TIMELY_MASK_BAR | TIMELY_MASK_BAR_WHOLE) )
				timely->cb(timely, from, timely->urid.time_bar, timely->data);
		}

		if( (timely->offset.beat == 0) && (timely->pos.bar_beat == 0) )
		{
			if(timely->mask & (TIMELY_MASK_BAR_BEAT | TIMELY_MASK_BAR_BEAT_WHOLE) )
				timely->cb(timely, from, timely->urid.time_barBeat, timely->data);
		}

		unsigned update_frame = to;
		for(unsigned i=from; i<to; i++)
		{
			if(timely->offset.bar >= timely->frames_per_bar)
			{
				timely->pos.bar += 1;
				timely->offset.bar -= timely->frames_per_bar;

				if(timely->mask & TIMELY_MASK_FRAME)
					timely->cb(timely, (update_frame = i), timely->urid.time_frame, timely->data);

				if(timely->mask & TIMELY_MASK_BAR_WHOLE)
					timely->cb(timely, i, timely->urid.time_bar, timely->data);
			}

			if( (timely->offset.beat >= timely->frames_per_beat) )
			{
				timely->pos.bar_beat = floor(timely->pos.bar_beat) + 1;
				timely->offset.beat -= timely->frames_per_beat;

				if(timely->pos.bar_beat >= timely->pos.beats_per_bar)
					timely->pos.bar_beat -= timely->pos.beats_per_bar;

				if( (timely->mask & TIMELY_MASK_FRAME) && (update_frame != i) )
					timely->cb(timely, (update_frame = i), timely->urid.time_frame, timely->data);

				if(timely->mask & TIMELY_MASK_BAR_BEAT_WHOLE)
					timely->cb(timely, i, timely->urid.time_barBeat, timely->data);
			}

			timely->offset.bar += 1;
			timely->offset.beat += 1;
			timely->pos.frame += 1;
		}
	}

	// is this a time position event?
	if(  ( (type == timely->urid.atom_object)
			|| (type == timely->urid.atom_blank)
			|| (type == timely->urid.atom_resource) )
		&& body && (body->otype == timely->urid.time_position) )
	{
		_timely_deatomize_body(timely, to, size, body);
		_timely_refresh(timely);

		return 1; // handled a time position event
	}

	return 0; // did not handle a time position event
}

int
timely_advance(timely_t *timely, const LV2_Atom_Object *obj,
	uint32_t from, uint32_t to)
{
	if(obj)
		return timely_advance_body(timely, obj->atom.size, obj->atom.type, &obj->body, from, to);

	return timely_advance_body(timely, 0, 0, NULL, from, to);
}

A  => test/manifest.ttl.in +16 -0
@@ 1,16 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: Artistic-2.0

@prefix lv2:      <http://lv2plug.in/ns/lv2core#> .
@prefix owl:			<http://www.w3.org/2002/07/owl#> .
@prefix rdfs:     <http://www.w3.org/2000/01/rdf-schema#> .

@prefix timely:		<http://open-music-kontrollers.ch/lv2/timely#> .

# Orbit Looper
timely:test
	a lv2:Plugin ;
	lv2:minorVersion @MINOR_VERSION@ ;
	lv2:microVersion @MICRO_VERSION@ ;
	lv2:binary <timely@MODULE_SUFFIX@> ;
	rdfs:seeAlso <timely.ttl> .

A  => test/timely.c +206 -0
@@ 1,206 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>

#include <timely.lv2/timely.h>

#include <lv2/log/log.h>
#include <lv2/log/logger.h>

#define TIMELY_PREFIX		"http://open-music-kontrollers.ch/lv2/timely#"
#define TIMELY_TEST_URI	TIMELY_PREFIX"test"

typedef struct _plughandle_t plughandle_t;

struct _plughandle_t {
	LV2_URID_Map *map;
	LV2_Log_Log *log;
	LV2_Log_Logger logger;
	timely_t timely;


	const LV2_Atom_Sequence *event_in;
};

static void
_timely_cb(timely_t *timely, int64_t frames, LV2_URID type, void *data)
{
	plughandle_t *handle = data;

	const int64_t frame = TIMELY_FRAME(timely);

	if(type == TIMELY_URI_BAR_BEAT(timely))
	{
		const float bar_beat = TIMELY_BAR_BEAT_RAW(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:barBeat          %f\n",
			frame, frames, bar_beat);
	}
	else if(type == TIMELY_URI_BAR(timely))
	{
		const int64_t bar = TIMELY_BAR(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:bar              %"PRIi64"\n",
			frame, frames, bar);
	}
	else if(type == TIMELY_URI_BEAT_UNIT(timely))
	{
		const int32_t beat_unit = TIMELY_BEAT_UNIT(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:beatUnit         %"PRIi32"\n",
			frame, frames, beat_unit);
	}
	else if(type == TIMELY_URI_BEATS_PER_BAR(timely))
	{
		const float bpb = TIMELY_BEATS_PER_BAR(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:beatsPerBar      %f\n",
			frame, frames, bpb);
	}
	else if(type == TIMELY_URI_BEATS_PER_MINUTE(timely))
	{
		const float bpm = TIMELY_BEATS_PER_MINUTE(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:beatsPerMinute   %f\n",
			frame, frames, bpm);
	}
	else if(type == TIMELY_URI_FRAME(timely))
	{
		/*
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:frame            %"PRIi64"\n",
			frame, frames, frame);
		*/
	}
	else if(type == TIMELY_URI_FRAMES_PER_SECOND(timely))
	{
		const float fps = TIMELY_FRAMES_PER_SECOND(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:framesPerSecond  %f\n",
			frame, frames, fps);
	}
	else if(type == TIMELY_URI_SPEED(timely))
	{
		const float speed = TIMELY_SPEED(timely);
		lv2_log_trace(&handle->logger, "0x%08"PRIx64" %4"PRIi64" time:speed            %f\n",
			frame, frames, speed);
	}
}

static LV2_Handle
instantiate(const LV2_Descriptor* descriptor, double rate,
	const char *bundle_path __attribute__((unused)),
	const LV2_Feature *const *features)
{
	plughandle_t *handle = calloc(1, sizeof(plughandle_t));
	if(!handle)
		return NULL;

	for(unsigned i=0; features[i]; i++)
	{
		if(!strcmp(features[i]->URI, LV2_URID__map))
			handle->map = features[i]->data;
		else if(!strcmp(features[i]->URI, LV2_LOG__log))
			handle->log = features[i]->data;
	}

	if(!handle->map)
	{
		fprintf(stderr,
			"%s: Host does not support urid:map\n", descriptor->URI);
		free(handle);
		return NULL;
	}
	if(!handle->log)
	{
		fprintf(stderr,
			"%s: Host does not support log:log\n", descriptor->URI);
		free(handle);
		return NULL;
	}

	lv2_log_logger_init(&handle->logger, handle->map, handle->log);

	timely_mask_t mask = TIMELY_MASK_BAR_BEAT
		| TIMELY_MASK_BAR
		| TIMELY_MASK_BEAT_UNIT
		| TIMELY_MASK_BEATS_PER_BAR
		| TIMELY_MASK_BEATS_PER_MINUTE
		//| TIMELY_MASK_FRAME
		| TIMELY_MASK_FRAMES_PER_SECOND
		| TIMELY_MASK_SPEED
		| TIMELY_MASK_BAR_BEAT_WHOLE
		| TIMELY_MASK_BAR_WHOLE;
	timely_init(&handle->timely, handle->map, rate, mask, _timely_cb, handle);
	timely_set_multiplier(&handle->timely, 1.f);

	return handle;
}

static void
connect_port(LV2_Handle instance, uint32_t port, void *data)
{
	plughandle_t *handle = (plughandle_t *)instance;

	switch(port)
	{
		case 0:
			handle->event_in = (const LV2_Atom_Sequence *)data;
			break;
		default:
			break;
	}
}

static void
run(LV2_Handle instance, uint32_t nsamples)
{
	plughandle_t *handle = instance;
	int64_t from = 0;

	LV2_ATOM_SEQUENCE_FOREACH(handle->event_in, ev)
	{
		const int64_t to = ev->time.frames;
		const LV2_Atom_Object *obj = (const LV2_Atom_Object *)&ev->body;

		const int handled = timely_advance(&handle->timely, obj, from, to);
		(void)handled;
		from = to;
	}

	timely_advance(&handle->timely, NULL, from, nsamples);
}

static void
cleanup(LV2_Handle instance)
{
	plughandle_t *handle = instance;

	free(handle);
}

const LV2_Descriptor timely_test = {
	.URI						= TIMELY_TEST_URI,
	.instantiate		= instantiate,
	.connect_port		= connect_port,
	.activate				= NULL,
	.run						= run,
	.deactivate			= NULL,
	.cleanup				= cleanup,
	.extension_data	= NULL
};

#ifdef _WIN32
__declspec(dllexport)
#else
__attribute__((visibility("default")))
#endif
const LV2_Descriptor*
lv2_descriptor(uint32_t index)
{
	switch(index)
	{
		case 0:
			return &timely_test;
		default:
			return NULL;
	}
}

A  => test/timely.ttl +52 -0
@@ 1,52 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: Artistic-2.0

@prefix owl:			<http://www.w3.org/2002/07/owl#> .
@prefix foaf:			<http://xmlns.com/foaf/0.1/> .
@prefix doap:			<http://usefulinc.com/ns/doap#> .
@prefix rdf:			<http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: 		<http://www.w3.org/2000/01/rdf-schema#> .
@prefix lv2:			<http://lv2plug.in/ns/lv2core#> .
@prefix atom:			<http://lv2plug.in/ns/ext/atom#> .
@prefix urid:			<http://lv2plug.in/ns/ext/urid#> .
@prefix time:			<http://lv2plug.in/ns/ext/time#> .
@prefix log:			<http://lv2plug.in/ns/ext/log#> .

@prefix omk:			<http://open-music-kontrollers.ch/ventosus#> .
@prefix proj:			<http://open-music-kontrollers.ch/lv2/> .
@prefix timely:		<http://open-music-kontrollers.ch/lv2/timely#> .

# Maintainer
omk:me
	a foaf:Person ;
	foaf:name "Hanspeter Portner" ;
	foaf:mbox <mailto:dev@open-music-kontrollers.ch> ;
	foaf:homepage <http://open-music-kontrollers.ch> .

# Project
proj:timely
	a doap:Project ;
	doap:maintainer omk:me ;
	doap:name "Timely Bundle" .

# Looper Test
timely:test
	a lv2:Plugin ,
		lv2:ConverterPlugin ;
	doap:name "Timely Test" ;
	doap:license <https://spdx.org/licenses/Artistic-2.0> ;
	lv2:project proj:timely ;
	lv2:requiredFeature urid:map, log:log ;
	lv2:optionalFeature lv2:isLive, lv2:hardRTCapable ;

	lv2:port [
		# sink event port
	  a lv2:InputPort ,
			atom:AtomPort ;
		atom:bufferType atom:Sequence ;
		atom:supports time:Position ;
		lv2:index 0 ;
		lv2:symbol "event_in" ;
		lv2:name "Event Input" ;
		lv2:designation lv2:control ;
	] .

A  => timely.lv2/timely.h +117 -0
@@ 1,117 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef _LV2_TIMELY_H_
#define _LV2_TIMELY_H_

#include <lv2/core/lv2.h>
#include <lv2/urid/urid.h>
#include <lv2/atom/atom.h>
#include <lv2/atom/forge.h>
#include <lv2/time/time.h>

typedef struct _timely_t timely_t;
typedef void (*timely_cb_t)(timely_t *timely, int64_t frames, LV2_URID type,
	void *data);

typedef enum _timely_mask_t {
	TIMELY_MASK_BAR_BEAT					= (1 << 0),
	TIMELY_MASK_BAR								= (1 << 1),
	TIMELY_MASK_BEAT_UNIT					= (1 << 2),
	TIMELY_MASK_BEATS_PER_BAR			= (1 << 3),
	TIMELY_MASK_BEATS_PER_MINUTE	= (1 << 4),
	TIMELY_MASK_FRAME							= (1 << 5),
	TIMELY_MASK_FRAMES_PER_SECOND	= (1 << 6),
	TIMELY_MASK_SPEED							= (1 << 7),
	TIMELY_MASK_BAR_BEAT_WHOLE		= (1 << 8),
	TIMELY_MASK_BAR_WHOLE					= (1 << 9)
} timely_mask_t;

struct _timely_t {
	struct {
		LV2_URID atom_object;
		LV2_URID atom_blank;
		LV2_URID atom_resource;

		LV2_URID time_position;
		LV2_URID time_barBeat;
		LV2_URID time_bar;
		LV2_URID time_beatUnit;
		LV2_URID time_beatsPerBar;
		LV2_URID time_beatsPerMinute;
		LV2_URID time_frame;
		LV2_URID time_framesPerSecond;
		LV2_URID time_speed;
	} urid;

	struct {
		float bar_beat;
		int64_t bar;

		int32_t beat_unit;
		float beats_per_bar;
		float beats_per_minute;

		int64_t frame;
		float frames_per_second;

		float speed;
	} pos;

	float multiplier;

	double frames_per_beat;
	double frames_per_bar;

	struct {
		double beat;
		double bar;
	} offset;

	bool first;
	timely_mask_t mask;
	timely_cb_t cb;
	void *data;
};

#define TIMELY_URI_BAR_BEAT(timely)						((timely)->urid.time_barBeat)
#define TIMELY_URI_BAR(timely)								((timely)->urid.time_bar)
#define TIMELY_URI_BEAT_UNIT(timely)					((timely)->urid.time_beatUnit)
#define TIMELY_URI_BEATS_PER_BAR(timely)			((timely)->urid.time_beatsPerBar)
#define TIMELY_URI_BEATS_PER_MINUTE(timely)		((timely)->urid.time_beatsPerMinute)
#define TIMELY_URI_FRAME(timely)							((timely)->urid.time_frame)
#define TIMELY_URI_FRAMES_PER_SECOND(timely)	((timely)->urid.time_framesPerSecond)
#define TIMELY_URI_SPEED(timely)							((timely)->urid.time_speed)

#define TIMELY_BAR_BEAT_RAW(timely)						((timely)->pos.bar_beat)
#define TIMELY_BAR_BEAT(timely)								(floor((timely)->pos.bar_beat) \
	+ (timely)->offset.beat / (timely)->frames_per_beat)
#define TIMELY_BAR(timely)										((timely)->pos.bar)
#define TIMELY_BEAT_UNIT(timely)							((timely)->pos.beat_unit)
#define TIMELY_BEATS_PER_BAR(timely)					((timely)->pos.beats_per_bar)
#define TIMELY_BEATS_PER_MINUTE(timely)				((timely)->pos.beats_per_minute)
#define TIMELY_FRAME(timely)									((timely)->pos.frame)
#define TIMELY_FRAMES_PER_SECOND(timely)			((timely)->pos.frames_per_second)
#define TIMELY_SPEED(timely)									((timely)->pos.speed)

#define TIMELY_FRAMES_PER_BEAT(timely)				((timely)->frames_per_beat)
#define TIMELY_FRAMES_PER_BAR(timely)					((timely)->frames_per_bar)

void
timely_init(timely_t *timely, LV2_URID_Map *map, double rate,
	timely_mask_t mask, timely_cb_t cb, void *data);

void
timely_set_multiplier(timely_t *timely, float multiplier);

int
timely_advance_body(timely_t *timely, uint32_t size, uint32_t type,
	const LV2_Atom_Object_Body *body, uint32_t from, uint32_t to);

int
timely_advance(timely_t *timely, const LV2_Atom_Object *obj,
	uint32_t from, uint32_t to);

#endif // _LV2_TIMELY_H_