~hp/vm.lv2

e53f16c215f9bd34bee1b5c21d9aac13c21563d5 — Hanspeter Portner 1 year, 5 months 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.

Preamble

This license establishes the terms under which a given free software Package may be copied, modified, distributed, and/or redistributed. The intent is that the Copyright Holder maintains some artistic control over the development of that Package while still keeping the Package available as open source and free software.

You are always permitted to make arrangements wholly outside of this license directly with the Copyright Holder of a given Package.  If the terms of this license do not permit the full use that you propose to make of the Package, you should contact the Copyright Holder and seek a different licensing arrangement.

Definitions

     "Copyright Holder" means the individual(s) or organization(s) named in the copyright notice for the entire Package.

     "Contributor" means any party that has contributed code or other material to the Package, in accordance with the Copyright Holder's procedures.

     "You" and "your" means any person who would like to copy, distribute, or modify the Package.

     "Package" means the collection of files distributed by the Copyright Holder, and derivatives of that collection and/or of those files. A given Package may consist of either the Standard Version, or a Modified Version.

     "Distribute" means providing a copy of the Package or making it accessible to anyone else, or in the case of a company or organization, to others outside of your company or organization.

     "Distributor Fee" means any fee that you charge for Distributing this Package or providing support for this Package to another party.  It does not mean licensing fees.

     "Standard Version" refers to the Package if it has not been modified, or has been modified only in ways explicitly requested by the Copyright Holder.

     "Modified Version" means the Package, if it has been changed, and such changes were not explicitly requested by the Copyright Holder.

     "Original License" means this Artistic License as Distributed with the Standard Version of the Package, in its current version or as it may be modified by The Perl Foundation in the future.

     "Source" form means the source code, documentation source, and configuration files for the Package.

     "Compiled" form means the compiled bytecode, object code, binary, or any other form resulting from mechanical transformation or translation of the Source form.

Permission for Use and Modification Without Distribution

(1) You are permitted to use the Standard Version and create and use Modified Versions for any purpose without restriction, provided that you do not Distribute the Modified Version.

Permissions for Redistribution of the Standard Version

(2) You may Distribute verbatim copies of the Source form of the Standard Version of this Package in any medium without restriction, either gratis or for a Distributor Fee, provided that you duplicate all of the original copyright notices and associated disclaimers.  At your discretion, such verbatim copies may or may not include a Compiled form of the Package.

(3) You may apply any bug fixes, portability changes, and other modifications made available from the Copyright Holder.  The resulting Package will still be considered the Standard Version, and as such will be subject to the Original License.

Distribution of Modified Versions of the Package as Source

(4) You may Distribute your Modified Version as Source (either gratis or for a Distributor Fee, and with or without a Compiled form of the Modified Version) provided that you clearly document how it differs from the Standard Version, including, but not limited to, documenting any non-standard features, executables, or modules, and provided that you do at least ONE of the following:

     (a) make the Modified Version available to the Copyright Holder of the Standard Version, under the Original License, so that the Copyright Holder may include your modifications in the Standard Version.
     (b) ensure that installation of your Modified Version does not prevent the user installing or running the Standard Version. In addition, the Modified Version must bear a name that is different from the name of the Standard Version.
     (c) allow anyone who receives a copy of the Modified Version to make the Source form of the Modified Version available to others under

          (i) the Original License or
          (ii) a license that permits the licensee to freely copy, modify and redistribute the Modified Version using the same licensing terms that apply to the copy that the licensee received, and requires that the Source form of the Modified Version, and of any works derived from it, be made freely available in that license fees are prohibited but Distributor Fees are allowed.

Distribution of Compiled Forms of the Standard Version or Modified Versions without the Source

(5)  You may Distribute Compiled forms of the Standard Version without the Source, provided that you include complete instructions on how to get the Source of the Standard Version.  Such instructions must be valid at the time of your distribution.  If these instructions, at any time while you are carrying out such distribution, become invalid, you must provide new instructions on demand or cease further distribution. If you provide valid instructions or cease distribution within thirty days after you become aware that the instructions are invalid, then you do not forfeit any of your rights under this license.

(6)  You may Distribute a Modified Version in Compiled form without the Source, provided that you comply with Section 4 with respect to the Source of the Modified Version.

Aggregating or Linking the Package

(7)  You may aggregate the Package (either the Standard Version or Modified Version) with other packages and Distribute the resulting aggregation provided that you do not charge a licensing fee for the Package.  Distributor Fees are permitted, and licensing fees for other components in the aggregation are permitted. The terms of this license apply to the use and Distribution of the Standard or Modified Versions as included in the aggregation.

(8) You are permitted to link Modified and Standard Versions with other works, to embed the Package in a larger work of your own, or to build stand-alone binary or bytecode versions of applications that include the Package, and Distribute the result without restriction, provided the result does not expose a direct interface to the Package.

Items That are Not Considered Part of a Modified Version

(9) Works (including, but not limited to, modules and scripts) that merely extend or make use of the Package, do not, by themselves, cause the Package to be a Modified Version.  In addition, such works are not considered parts of the Package itself, and are not subject to the terms of this license.

General Provisions

(10)  Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

(11)  If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

(12)  This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

(13)  This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

(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

CC0 1.0 Universal

    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
    HEREUNDER.

Statement of Purpose

The laws of most jurisdictions throughout the world automatically confer
exclusive Copyright and Related Rights (defined below) upon the creator
and subsequent owner(s) (each and all, an "owner") of an original work of
authorship and/or a database (each, a "Work").

Certain owners wish to permanently relinquish those rights to a Work for
the purpose of contributing to a commons of creative, cultural and
scientific works ("Commons") that the public can reliably and without fear
of later claims of infringement build upon, modify, incorporate in other
works, reuse and redistribute as freely as possible in any form whatsoever
and for any purposes, including without limitation commercial purposes.
These owners may contribute to the Commons to promote the ideal of a free
culture and the further production of creative, cultural and scientific
works, or to gain reputation or greater distribution for their Work in
part through the use and efforts of others.

For these and/or other purposes and motivations, and without any
expectation of additional consideration or compensation, the person
associating CC0 with a Work (the "Affirmer"), to the extent that he or she
is an owner of Copyright and Related Rights in the Work, voluntarily
elects to apply CC0 to the Work and publicly distribute the Work under its
terms, with knowledge of his or her Copyright and Related Rights in the
Work and the meaning and intended legal effect of CC0 on those rights.

1. Copyright and Related Rights. A Work made available under CC0 may be
protected by copyright and related or neighboring rights ("Copyright and
Related Rights"). Copyright and Related Rights include, but are not
limited to, the following:

  i. the right to reproduce, adapt, distribute, perform, display,
     communicate, and translate a Work;
 ii. moral rights retained by the original author(s) and/or performer(s);
iii. publicity and privacy rights pertaining to a person's image or
     likeness depicted in a Work;
 iv. rights protecting against unfair competition in regards to a Work,
     subject to the limitations in paragraph 4(a), below;
  v. rights protecting the extraction, dissemination, use and reuse of data
     in a Work;
 vi. database rights (such as those arising under Directive 96/9/EC of the
     European Parliament and of the Council of 11 March 1996 on the legal
     protection of databases, and under any national implementation
     thereof, including any amended or successor version of such
     directive); and
vii. other similar, equivalent or corresponding rights throughout the
     world based on applicable law or treaty, and any national
     implementations thereof.

2. Waiver. To the greatest extent permitted by, but not in contravention
of, applicable law, Affirmer hereby overtly, fully, permanently,
irrevocably and unconditionally waives, abandons, and surrenders all of
Affirmer's Copyright and Related Rights and associated claims and causes
of action, whether now known or unknown (including existing as well as
future claims and causes of action), in the Work (i) in all territories
worldwide, (ii) for the maximum duration provided by applicable law or
treaty (including future time extensions), (iii) in any current or future
medium and for any number of copies, and (iv) for any purpose whatsoever,
including without limitation commercial, advertising or promotional
purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
member of the public at large and to the detriment of Affirmer's heirs and
successors, fully intending that such Waiver shall not be subject to
revocation, rescission, cancellation, termination, or any other legal or
equitable action to disrupt the quiet enjoyment of the Work by the public
as contemplated by Affirmer's express Statement of Purpose.

3. Public License Fallback. Should any part of the Waiver for any reason
be judged legally invalid or ineffective under applicable law, then the
Waiver shall be preserved to the maximum extent permitted taking into
account Affirmer's express Statement of Purpose. In addition, to the
extent the Waiver is so judged Affirmer hereby grants to each affected
person a royalty-free, non transferable, non sublicensable, non exclusive,
irrevocable and unconditional license to exercise Affirmer's Copyright and
Related Rights in the Work (i) in all territories worldwide, (ii) for the
maximum duration provided by applicable law or treaty (including future
time extensions), (iii) in any current or future medium and for any number
of copies, and (iv) for any purpose whatsoever, including without
limitation commercial, advertising or promotional purposes (the
"License"). The License shall be deemed effective as of the date CC0 was
applied by Affirmer to the Work. Should any part of the License for any
reason be judged legally invalid or ineffective under applicable law, such
partial invalidity or ineffectiveness shall not invalidate the remainder
of the License, and in such case Affirmer hereby affirms that he or she
will not (i) exercise any of his or her remaining Copyright and Related
Rights in the Work or (ii) assert any associated claims and causes of
action with respect to the Work, in either case contrary to Affirmer's
express Statement of Purpose.

4. Limitations and Disclaimers.

 a. No trademark or patent rights held by Affirmer are waived, abandoned,
    surrendered, licensed or otherwise affected by this document.
 b. Affirmer offers the Work as-is and makes no representations or
    warranties of any kind concerning the Work, express, implied,
    statutory or otherwise, including without limitation warranties of
    title, merchantability, fitness for a particular purpose, non
    infringement, or the absence of latent or other defects, accuracy, or
    the present or absence of errors, whether or not discoverable, all to
    the greatest extent permissible under applicable law.
 c. Affirmer disclaims responsibility for clearing rights of other persons
    that may apply to the Work or any use thereof, including without
    limitation any person's Copyright and Related Rights in the Work.
    Further, Affirmer disclaims responsibility for obtaining any necessary
    consents, permissions or other rights required for any use of the
    Work.
 d. Affirmer understands and acknowledges that Creative Commons is not a
    party to this document and has no duty or obligation with respect to
    this CC0 or use of the Work.

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_