Prepare for open-source release under GPL-3.0-or-later; docs & test maintenance
- Add GPL-3.0 LICENSE and SPDX headers (GPL-3.0-or-later) to every source file (58 Kotlin, the C++ file, and the sample-pack HTML tool). - README: state the GPL-3.0-or-later license (+ badge); fix stale "256 beats" -> "256 bars"; fix build instructions (the Gradle wrapper is committed); mention master recording and the sample-pack tool. - DEVELOPER_HANDOVER: resync with the codebase — corrected the wrapper note, architecture diagram, full file map, the add-instrument/effect guide, Oboe (now default with fallback, not an opt-in toggle), moved SF2/XI to implemented, and added recently shipped features with an honest remaining/optional list. - Fix a pre-existing broken unit test: SngFormatTest called the old SngFormat.import(text); the API is importInto(project, text). Tests compile and pass again. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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received notice of violation of this License (for any work) from that
|
||||
copyright holder, and you cure the violation prior to 30 days after
|
||||
your receipt of the notice.
|
||||
|
||||
Termination of your rights under this section does not terminate the
|
||||
licenses of parties who have received copies or rights from you under
|
||||
this License. If your rights have been terminated and not permanently
|
||||
reinstated, you do not qualify to receive new licenses for the same
|
||||
material under section 10.
|
||||
|
||||
9. Acceptance Not Required for Having Copies.
|
||||
|
||||
You are not required to accept this License in order to receive or
|
||||
run a copy of the Program. Ancillary propagation of a covered work
|
||||
occurring solely as a consequence of using peer-to-peer transmission
|
||||
to receive a copy likewise does not require acceptance. However,
|
||||
nothing other than this License grants you permission to propagate or
|
||||
modify any covered work. These actions infringe copyright if you do
|
||||
not accept this License. Therefore, by modifying or propagating a
|
||||
covered work, you indicate your acceptance of this License to do so.
|
||||
|
||||
10. Automatic Licensing of Downstream Recipients.
|
||||
|
||||
Each time you convey a covered work, the recipient automatically
|
||||
receives a license from the original licensors, to run, modify and
|
||||
propagate that work, subject to this License. You are not responsible
|
||||
for enforcing compliance by third parties with this License.
|
||||
|
||||
An "entity transaction" is a transaction transferring control of an
|
||||
organization, or substantially all assets of one, or subdividing an
|
||||
organization, or merging organizations. If propagation of a covered
|
||||
work results from an entity transaction, each party to that
|
||||
transaction who receives a copy of the work also receives whatever
|
||||
licenses to the work the party's predecessor in interest had or could
|
||||
give under the previous paragraph, plus a right to possession of the
|
||||
Corresponding Source of the work from the predecessor in interest, if
|
||||
the predecessor has it or can get it with reasonable efforts.
|
||||
|
||||
You may not impose any further restrictions on the exercise of the
|
||||
rights granted or affirmed under this License. For example, you may
|
||||
not impose a license fee, royalty, or other charge for exercise of
|
||||
rights granted under this License, and you may not initiate litigation
|
||||
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||
any patent claim is infringed by making, using, selling, offering for
|
||||
sale, or importing the Program or any portion of it.
|
||||
|
||||
11. Patents.
|
||||
|
||||
A "contributor" is a copyright holder who authorizes use under this
|
||||
License of the Program or a work on which the Program is based. The
|
||||
work thus licensed is called the contributor's "contributor version".
|
||||
|
||||
A contributor's "essential patent claims" are all patent claims
|
||||
owned or controlled by the contributor, whether already acquired or
|
||||
hereafter acquired, that would be infringed by some manner, permitted
|
||||
by this License, of making, using, or selling its contributor version,
|
||||
but do not include claims that would be infringed only as a
|
||||
consequence of further modification of the contributor version. For
|
||||
purposes of this definition, "control" includes the right to grant
|
||||
patent sublicenses in a manner consistent with the requirements of
|
||||
this License.
|
||||
|
||||
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||
patent license under the contributor's essential patent claims, to
|
||||
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||
propagate the contents of its contributor version.
|
||||
|
||||
In the following three paragraphs, a "patent license" is any express
|
||||
agreement or commitment, however denominated, not to enforce a patent
|
||||
(such as an express permission to practice a patent or covenant not to
|
||||
sue for patent infringement). To "grant" such a patent license to a
|
||||
party means to make such an agreement or commitment not to enforce a
|
||||
patent against the party.
|
||||
|
||||
If you convey a covered work, knowingly relying on a patent license,
|
||||
and the Corresponding Source of the work is not available for anyone
|
||||
to copy, free of charge and under the terms of this License, through a
|
||||
publicly available network server or other readily accessible means,
|
||||
then you must either (1) cause the Corresponding Source to be so
|
||||
available, or (2) arrange to deprive yourself of the benefit of the
|
||||
patent license for this particular work, or (3) arrange, in a manner
|
||||
consistent with the requirements of this License, to extend the patent
|
||||
license to downstream recipients. "Knowingly relying" means you have
|
||||
actual knowledge that, but for the patent license, your conveying the
|
||||
covered work in a country, or your recipient's use of the covered work
|
||||
in a country, would infringe one or more identifiable patents in that
|
||||
country that you have reason to believe are valid.
|
||||
|
||||
If, pursuant to or in connection with a single transaction or
|
||||
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||
covered work, and grant a patent license to some of the parties
|
||||
receiving the covered work authorizing them to use, propagate, modify
|
||||
or convey a specific copy of the covered work, then the patent license
|
||||
you grant is automatically extended to all recipients of the covered
|
||||
work and works based on it.
|
||||
|
||||
A patent license is "discriminatory" if it does not include within
|
||||
the scope of its coverage, prohibits the exercise of, or is
|
||||
conditioned on the non-exercise of one or more of the rights that are
|
||||
specifically granted under this License. You may not convey a covered
|
||||
work if you are a party to an arrangement with a third party that is
|
||||
in the business of distributing software, under which you make payment
|
||||
to the third party based on the extent of your activity of conveying
|
||||
the work, and under which the third party grants, to any of the
|
||||
parties who would receive the covered work from you, a discriminatory
|
||||
patent license (a) in connection with copies of the covered work
|
||||
conveyed by you (or copies made from those copies), or (b) primarily
|
||||
for and in connection with specific products or compilations that
|
||||
contain the covered work, unless you entered into that arrangement,
|
||||
or that patent license was granted, prior to 28 March 2007.
|
||||
|
||||
Nothing in this License shall be construed as excluding or limiting
|
||||
any implied license or other defenses to infringement that may
|
||||
otherwise be available to you under applicable patent law.
|
||||
|
||||
12. No Surrender of Others' Freedom.
|
||||
|
||||
If conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot convey a
|
||||
covered work so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you may
|
||||
not convey it at all. For example, if you agree to terms that obligate you
|
||||
to collect a royalty for further conveying from those to whom you convey
|
||||
the Program, the only way you could satisfy both those terms and this
|
||||
License would be to refrain entirely from conveying the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
|
||||
Notwithstanding any other provision of this License, you have
|
||||
permission to link or combine any covered work with a work licensed
|
||||
under version 3 of the GNU Affero General Public License into a single
|
||||
combined work, and to convey the resulting work. The terms of this
|
||||
License will continue to apply to the part which is the covered work,
|
||||
but the special requirements of the GNU Affero General Public License,
|
||||
section 13, concerning interaction through a network will apply to the
|
||||
combination as such.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
|
||||
The Free Software Foundation may publish revised and/or new versions of
|
||||
the GNU General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the
|
||||
Program specifies that a certain numbered version of the GNU General
|
||||
Public License "or any later version" applies to it, you have the
|
||||
option of following the terms and conditions either of that numbered
|
||||
version or of any later version published by the Free Software
|
||||
Foundation. If the Program does not specify a version number of the
|
||||
GNU General Public License, you may choose any version ever published
|
||||
by the Free Software Foundation.
|
||||
|
||||
If the Program specifies that a proxy can decide which future
|
||||
versions of the GNU General Public License can be used, that proxy's
|
||||
public statement of acceptance of a version permanently authorizes you
|
||||
to choose that version for the Program.
|
||||
|
||||
Later license versions may give you additional or different
|
||||
permissions. However, no additional obligations are imposed on any
|
||||
author or copyright holder as a result of your choosing to follow a
|
||||
later version.
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
|
||||
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||
|
||||
16. Limitation of Liability.
|
||||
|
||||
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||
SUCH DAMAGES.
|
||||
|
||||
17. Interpretation of Sections 15 and 16.
|
||||
|
||||
If the disclaimer of warranty and limitation of liability provided
|
||||
above cannot be given local legal effect according to their terms,
|
||||
reviewing courts shall apply local law that most closely approximates
|
||||
an absolute waiver of all civil liability in connection with the
|
||||
Program, unless a warranty or assumption of liability accompanies a
|
||||
copy of the Program in return for a fee.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
state the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program does terminal interaction, make it output a short
|
||||
notice like this when it starts in an interactive mode:
|
||||
|
||||
<program> Copyright (C) <year> <name of author>
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, your program's commands
|
||||
might be different; for a GUI interface, you would use an "about box".
|
||||
|
||||
You should also get your employer (if you work as a programmer) or school,
|
||||
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||
For more information on this, and how to apply and follow the GNU GPL, see
|
||||
<https://www.gnu.org/licenses/>.
|
||||
|
||||
The GNU General Public License does not permit incorporating your program
|
||||
into proprietary programs. If your program is a subroutine library, you
|
||||
may consider it more useful to permit linking proprietary applications with
|
||||
the library. If this is what you want to do, use the GNU Lesser General
|
||||
Public License instead of this License. But first, please read
|
||||
<https://www.gnu.org/licenses/why-not-lgpl.html>.
|
||||
21
README.md
21
README.md
@@ -8,13 +8,14 @@ gamepad, and MIDI** (USB or Bluetooth).
|
||||
<img alt="platform" src="https://img.shields.io/badge/platform-Android%208%2B-0b0d0e">
|
||||
<img alt="language" src="https://img.shields.io/badge/kotlin-2.0-7cfc9a">
|
||||
<img alt="ui" src="https://img.shields.io/badge/UI-Jetpack%20Compose-f2c14e">
|
||||
<img alt="license" src="https://img.shields.io/badge/license-GPL--3.0--or--later-e05a4b">
|
||||
</p>
|
||||
|
||||
## Features at a glance
|
||||
|
||||
- **Tracker tab** — 4-track pattern grid (note / velocity-hex / MIDI-channel per
|
||||
track), beat & bar coloring, tap-to-focus + drag-to-edit with haptics and
|
||||
scale-aware note entry; plus an 8-lane arrangement piano-roll (up to 256 beats)
|
||||
scale-aware note entry; plus an 8-lane arrangement piano-roll (up to 256 bars)
|
||||
with A/B loop regions.
|
||||
- **Mix tab** — 4 channels, each with an instrument + 4 FX slots, MIDI channel,
|
||||
volume, mute/solo.
|
||||
@@ -23,16 +24,21 @@ gamepad, and MIDI** (USB or Bluetooth).
|
||||
bitcrusher). Every device has an auto-generated editor and text presets.
|
||||
- **Setup tab** — `.sng` project save/load, color themes (with import/export),
|
||||
gamepad bindings, and searchable/collapsible MIDI bindings.
|
||||
- **Master recording** — render the master bus (with FX tail) to a WAV file.
|
||||
- **Background playback** with a media notification (Play/Pause/Stop).
|
||||
- **Two-thread design** — Compose UI on the main thread, a sample-accurate sound
|
||||
engine on its own high-priority thread.
|
||||
|
||||
There is also a standalone `tools/samplepack-builder.html` — an offline page for
|
||||
assembling Sampler preset bundles (drop audio onto 16 note-labelled pads, then
|
||||
download an importable `.zip`).
|
||||
|
||||
## Build & run
|
||||
|
||||
Open the project in **Android Studio** (2024.1+), let it create the Gradle
|
||||
wrapper if prompted, and Run on an **API 26+** device or emulator.
|
||||
Open the project in **Android Studio** (2024.1+) and Run on an **API 26+**
|
||||
device or emulator.
|
||||
|
||||
CLI (after the wrapper exists — `gradle wrapper --gradle-version 8.9`):
|
||||
From the CLI (the Gradle wrapper is committed, so a fresh clone needs no setup):
|
||||
```
|
||||
./gradlew assembleDebug
|
||||
```
|
||||
@@ -57,4 +63,9 @@ compatibility shim is a listed TODO in the handover doc.
|
||||
|
||||
## License
|
||||
|
||||
TBD by the project owner.
|
||||
Sizzletracker is free software: you can redistribute it and/or modify it under
|
||||
the terms of the **GNU General Public License v3.0 or later**
|
||||
(`GPL-3.0-or-later`). See the [`LICENSE`](LICENSE) file for the full text; every
|
||||
source file carries an SPDX `GPL-3.0-or-later` header.
|
||||
|
||||
Copyright © 2026 Reactorcoremeltdown
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
// Native Oboe (AAudio) output backend for Sizzletracker.
|
||||
//
|
||||
// Opens a low-latency mono float Oboe output stream. On each real-time data
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker
|
||||
|
||||
import android.Manifest
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker
|
||||
|
||||
import android.app.Application
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.AmbiencePresets
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import android.media.AudioAttributes
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.DelayDivisions
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import java.io.File
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import android.annotation.SuppressLint
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import java.nio.ByteBuffer
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import kotlin.math.exp
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
import java.nio.ByteBuffer
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.audio
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
import android.content.Context
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
import android.view.InputDevice
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
import kotlinx.coroutines.flow.MutableSharedFlow
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
import android.view.KeyEvent
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.input
|
||||
|
||||
import android.content.Context
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.ToolboxSlot
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.audio.SampleStore
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.Cell
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.Project
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import android.content.Context
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.Arrangement
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import java.io.File
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import androidx.compose.ui.graphics.Color
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.ui.theme.RetroPalette
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.model
|
||||
|
||||
/**
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.playback
|
||||
|
||||
import android.os.Looper
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.playback
|
||||
|
||||
import android.content.Context
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui
|
||||
|
||||
import androidx.activity.compose.BackHandler
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui
|
||||
|
||||
import androidx.compose.runtime.getValue
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui
|
||||
|
||||
import android.content.res.Configuration
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui
|
||||
|
||||
import androidx.compose.foundation.background
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.components
|
||||
|
||||
import androidx.compose.ui.text.TextLayoutResult
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.components
|
||||
|
||||
import androidx.compose.foundation.background
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.components
|
||||
|
||||
import androidx.compose.foundation.background
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.mixer
|
||||
|
||||
import androidx.activity.compose.rememberLauncherForActivityResult
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.settings
|
||||
|
||||
import android.content.Context
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.theme
|
||||
|
||||
import android.app.Activity
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.toolbox
|
||||
|
||||
import androidx.compose.foundation.Canvas
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.toolbox
|
||||
|
||||
import androidx.compose.foundation.layout.Arrangement
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.toolbox
|
||||
|
||||
import androidx.compose.foundation.layout.Column
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.toolbox
|
||||
|
||||
import androidx.activity.compose.rememberLauncherForActivityResult
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.toolbox
|
||||
|
||||
import androidx.activity.compose.rememberLauncherForActivityResult
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.toolbox
|
||||
|
||||
import android.content.Intent
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.tracker
|
||||
|
||||
import androidx.compose.foundation.Canvas
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.tracker
|
||||
|
||||
import androidx.compose.foundation.Canvas
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.ui.tracker
|
||||
|
||||
import androidx.compose.foundation.background
|
||||
|
||||
@@ -1,3 +1,6 @@
|
||||
// SPDX-FileCopyrightText: 2026 Reactorcoremeltdown
|
||||
// SPDX-License-Identifier: GPL-3.0-or-later
|
||||
|
||||
package com.reactorcoremeltdown.sizzletracker.io
|
||||
|
||||
import com.reactorcoremeltdown.sizzletracker.model.Arrangement
|
||||
@@ -28,7 +31,7 @@ class SngFormatTest {
|
||||
|
||||
@Test
|
||||
fun parsesReferenceExample() {
|
||||
val p = SngFormat.import(reference)
|
||||
val p = SngFormat.importInto(Project(), reference)
|
||||
|
||||
assertEquals(120f, p.tempoBpm, 0.001f)
|
||||
assertEquals(TimeSignature.FOUR_FOUR, p.timeSignature)
|
||||
@@ -64,7 +67,7 @@ class SngFormatTest {
|
||||
p.arrangement.set(0, 0, 0)
|
||||
p.arrangement.set(0, 1, 0)
|
||||
|
||||
val restored = SngFormat.import(SngFormat.export(p))
|
||||
val restored = SngFormat.importInto(Project(), SngFormat.export(p))
|
||||
|
||||
assertEquals(140f, restored.tempoBpm, 0.001f)
|
||||
assertEquals(TimeSignature.FIVE_FOUR, restored.timeSignature)
|
||||
|
||||
@@ -30,15 +30,14 @@ Requirements: **Android Studio** (Koala / 2024.1 or newer) which bundles a
|
||||
JDK 17 and the Android SDK.
|
||||
|
||||
1. Open the project root in Android Studio. It will detect the Gradle build.
|
||||
2. If prompted, let it **create the Gradle wrapper** (or run
|
||||
`gradle wrapper --gradle-version 8.9` from a shell that has Gradle).
|
||||
3. Let it download the SDK for `compileSdk 34`.
|
||||
4. Pick a device/emulator running **Android 8.0 (API 26)** or newer and press
|
||||
2. Let it download the SDK for `compileSdk 34`.
|
||||
3. Pick a device/emulator running **Android 8.0 (API 26)** or newer and press
|
||||
**Run**.
|
||||
|
||||
> The command line here (`./gradlew assembleDebug`) needs the wrapper JAR, which
|
||||
> is generated by step 2. The wrapper JAR is intentionally not committed as a
|
||||
> binary; generating it is a one-time step.
|
||||
> The Gradle wrapper (`gradle/wrapper/gradle-wrapper.jar`) **is committed**
|
||||
> (Gradle's recommended practice), so `./gradlew assembleDebug` works on a fresh
|
||||
> clone with no extra setup. A `staging` build type (`./gradlew assembleStaging`)
|
||||
> gives release-like performance while still using the debug signing key.
|
||||
|
||||
Key versions live in **one file**: `gradle/libs.versions.toml` (the "version
|
||||
catalog"). Change a number there and the whole project follows.
|
||||
@@ -58,7 +57,7 @@ catalog"). Change a number there and the whole project follows.
|
||||
Project (the song)
|
||||
▲
|
||||
reads on audio thread │
|
||||
AudioEngine ─────────┘ ──▶ AudioTrack ──▶ speakers
|
||||
AudioEngine ─────────┘ ──▶ Oboe / AudioTrack ──▶ speakers
|
||||
(own thread)
|
||||
```
|
||||
|
||||
@@ -92,14 +91,17 @@ com.reactorcoremeltdown.sizzletracker
|
||||
├── model/ Pure data, no Android imports (unit-test friendly)
|
||||
│ ├── Music.kt Pitch, TimeSignature, Scale (incl. scale-step logic)
|
||||
│ ├── Pattern.kt Cell, CellColumn, Pattern (4 tracks x N lines)
|
||||
│ ├── Arrangement.kt Arrangement (8 lanes x 256 beats), LoopRegion A/B
|
||||
│ ├── Mixer.kt Mixer, MixerChannel (4 channels)
|
||||
│ ├── Toolbox.kt ToolboxType (all instruments+effects), ParamSpec, ToolboxSlot
|
||||
│ ├── Arrangement.kt Arrangement (8 lanes; canvas denominated in bars, up to 256), LoopRegion A/B
|
||||
│ ├── Mixer.kt Mixer, MixerChannel (4 channels; volume/mute/solo/limiter)
|
||||
│ ├── Toolbox.kt ToolboxType (all instruments+effects), ParamSpec, ToolboxSlot, SamplerPads
|
||||
│ ├── AmbiencePresets.kt Factory reverb spaces seeded into the preset library
|
||||
│ └── Project.kt The whole song
|
||||
│
|
||||
├── input/ The unified input layer
|
||||
│ ├── InputAction.kt The neutral action vocabulary
|
||||
│ ├── InputRouter.kt Flow-based message bus
|
||||
│ ├── InputActions.kt Bindable-action catalogue (for the rebind/learn UI)
|
||||
│ ├── InputRouter.kt Flow-based message bus (+ learn mode)
|
||||
│ ├── BindingStore.kt Persists gamepad/MIDI bindings
|
||||
│ ├── KeyboardInput.kt KeyEvent -> InputAction (+ a 2-octave typing piano)
|
||||
│ ├── GamepadInput.kt KeyEvent/MotionEvent -> InputAction (rebindable)
|
||||
│ └── MidiInput.kt MIDI bytes -> InputAction (USB & Bluetooth via MidiManager)
|
||||
@@ -107,23 +109,43 @@ com.reactorcoremeltdown.sizzletracker
|
||||
├── audio/ The real-time sound engine (own thread)
|
||||
│ ├── Transport.kt TransportState snapshot published to the UI
|
||||
│ ├── SynthVoice.kt One NES-style voice: pulse/triangle/noise + ADSR
|
||||
│ └── AudioEngine.kt AudioTrack + sample-accurate sequencer + voice mixing
|
||||
│ ├── SampleVoice.kt Pitched + sliced playback of a decoded sample
|
||||
│ ├── SampleStore.kt Process-wide decoded-PCM cache + WAV encode/decode
|
||||
│ ├── SampleRecorder.kt Ad-hoc mic/USB capture into a sample
|
||||
│ ├── SoundFontLoader.kt Extract PCM from an .sf2 / .xi into the SampleStore
|
||||
│ ├── Effects.kt Insert DSP: TapeDelay, Filter, Bitcrusher, GraphicEq (+ AudioEffect API)
|
||||
│ ├── AmbienceReverb.kt FDN reverb processor
|
||||
│ ├── MasterRecorder.kt Renders the master bus (with FX tail) to a WAV
|
||||
│ ├── NativeAudioBridge.kt JNI bridge to the Oboe callback (calls fillBlock)
|
||||
│ └── AudioEngine.kt Oboe/AudioTrack + sample-accurate sequencer + voice/FX mixing
|
||||
│
|
||||
├── cpp/native_audio.cpp Low-latency Oboe stream; RT callback pulls audio via JNI
|
||||
│
|
||||
├── io/ Human-readable text persistence
|
||||
│ ├── PresetIo.kt Instrument/effect preset <-> KEY=VALUE text
|
||||
│ └── ProjectIo.kt Whole song <-> .sng text
|
||||
│ ├── PresetLibrary.kt On-disk preset library (+ .zip sample bundles)
|
||||
│ ├── ProjectIo.kt Whole song <-> internal .sng text (full fidelity)
|
||||
│ ├── ProjectStore.kt Autosave / load of the current project
|
||||
│ ├── SongLibrary.kt Named project save/load browser backing
|
||||
│ ├── SngFormat.kt Desktop-compatible .sng interchange read/write
|
||||
│ ├── SettingsStore.kt App settings (theme, recording dir, keyboard) via DataStore
|
||||
│ ├── ThemeIo.kt RetroPalette <-> .szt text
|
||||
│ └── ThemeLibrary.kt On-disk theme library (import/export/delete)
|
||||
│
|
||||
├── playback/
|
||||
│ └── PlaybackService.kt Foreground service: background playback + media notification
|
||||
│ ├── EnginePlayer.kt SimpleBasePlayer wrapping the engine for MediaSession
|
||||
│ └── PlaybackService.kt MediaSessionService: background playback + media notification
|
||||
│
|
||||
└── ui/
|
||||
├── AppViewModel.kt Screen state + THE single InputAction handler
|
||||
├── App.kt Tab shell
|
||||
├── Responsive.kt Portrait/landscape layout helpers (nav rail, two-column)
|
||||
├── StackedKeyboard.kt On-screen audition / punch-in piano
|
||||
├── theme/Theme.kt RetroPalette + monospace typography + SizzleTheme
|
||||
├── components/Widgets.kt RetroButton, RetroDropdown, SectionLabel, PixelGlyph
|
||||
├── components/ Widgets (RetroButton/Dropdown…), GlyphCache, Piano
|
||||
├── tracker/ TrackerScreen, PatternGrid, ArrangementRoll
|
||||
├── mixer/MixerScreen.kt
|
||||
├── toolbox/ ToolboxScreen, ParamControl
|
||||
├── toolbox/ ToolboxScreen, ParamControl, Sampler/SoundFont/Delay/Lfo editors
|
||||
└── settings/SettingsScreen.kt
|
||||
```
|
||||
|
||||
@@ -185,10 +207,18 @@ are both **generated** from that list. See §6 to add a new device.
|
||||
|
||||
### Add a new instrument or effect
|
||||
1. Add an entry to `ToolboxType` (`model/Toolbox.kt`) with its `ParamSpec` list.
|
||||
2. Teach `AudioEngine` how to render/process it (today only `NES_SYNTH` is
|
||||
rendered; see `synthParamsForTrack`). Add a branch there.
|
||||
That's it — the Toolbox picker, parameter editor, and preset save/load all work
|
||||
automatically.
|
||||
2. Teach the engine how to sound it:
|
||||
- **Instrument**: handle its type where the engine picks a voice per channel
|
||||
(see how `NES_SYNTH`, `SAMPLER`, and `SOUNDFONT` are dispatched in
|
||||
`AudioEngine`).
|
||||
- **Signal effect**: add a processor in `audio/Effects.kt` implementing
|
||||
`AudioEffect` and register it in `AudioEffect.create(...)`; the per-channel
|
||||
insert chain picks it up automatically.
|
||||
- **MIDI effect** (arp/transpose/LFO-style): hook into the sequencer instead
|
||||
of the signal path (see `advanceArps` / `applyLfos` in `AudioEngine`).
|
||||
The Toolbox picker, parameter editor, and preset save/load all work automatically
|
||||
from the `ParamSpec` list. A device with many parameters can ship a bespoke
|
||||
editor (see `ui/toolbox/DelayEditor.kt`, `SamplerEditor.kt`).
|
||||
|
||||
### Add a new input gesture/control
|
||||
1. Add a case to `InputAction`.
|
||||
@@ -249,8 +279,9 @@ Line-oriented, sectioned (`[PATTERN ...]`, `[ARRANGEMENT ...]`, `[MIXER]`,
|
||||
## 9. Current status — implemented vs. TODO
|
||||
|
||||
This is an honest map so you know where the edges are. The **architecture and
|
||||
all four tabs are in place and interactive**; several deep features are scaffolded
|
||||
with a clear seam to finish them.
|
||||
all four tabs are in place and interactive**, and the feature set below is
|
||||
implemented and working; the short "Remaining / optional" list at the end is
|
||||
polish and interchange niceties, not functional gaps.
|
||||
|
||||
### Implemented and working
|
||||
- Full 4-tab UI, retro monospace theme (+ theme switching), tab navigation.
|
||||
@@ -307,12 +338,13 @@ with a clear seam to finish them.
|
||||
(`version`/`bpm`/`sig`, `block`…`endblock` with `roll`/`track`/steps) — covered
|
||||
by passing JVM unit tests in `app/src/test`.
|
||||
- Background playback foreground service with Play/Pause/Stop notification.
|
||||
- **Oboe / AAudio native output** ✓ (opt-in): `src/main/cpp/native_audio.cpp`
|
||||
- **Oboe / AAudio native output** ✓ (default): `src/main/cpp/native_audio.cpp`
|
||||
opens a low-latency Oboe stream whose real-time callback pulls audio via JNI
|
||||
(`audio/NativeAudioBridge.kt`) from the SAME `AudioEngine.fillBlock` the
|
||||
AudioTrack loop uses — so both backends produce identical sound, only the
|
||||
delivery path differs. Toggle it in Settings → Audio Devices ("Low-latency
|
||||
engine (Oboe)"); it falls back to AudioTrack if the native lib is absent.
|
||||
delivery path differs. Oboe is the default engine; it falls back to the
|
||||
AudioTrack loop only if it fails to initialise (or the native lib is absent),
|
||||
surfacing a popup with the reason (there is no user toggle).
|
||||
Built via **NDK r27** (`ndkVersion` in `app/build.gradle.kts`) + CMake + the
|
||||
`com.google.oboe:oboe:1.10.0` prefab AAR. All packaged `.so` files are **16 KB
|
||||
page-aligned** (Android 15 / Google Play requirement): NDK r27 aligns ELF load
|
||||
@@ -320,17 +352,34 @@ with a clear seam to finish them.
|
||||
lib is aligned, our `CMakeLists.txt` also passes `-Wl,-z,max-page-size=16384`,
|
||||
and AGP stores each `.so` at a 16 KB-aligned offset in the APK. (Verify with
|
||||
`llvm-readelf -l <lib>.so` → LOAD `Align 0x4000`.)
|
||||
- **SF2 / XI loader instrument** ✓: `audio/SoundFontLoader.kt` extracts PCM from
|
||||
an `.sf2` / `.xi` into the `SampleStore`, played back through the same
|
||||
`SampleVoice` path as the Sampler; edited via `ui/toolbox/SoundFontEditor.kt`
|
||||
(root note, volume, ADSR).
|
||||
- **Master recording** ✓: `audio/MasterRecorder.kt` renders the stereo master bus
|
||||
(plus a configurable FX tail) to a WAV in a user-chosen folder (SAF).
|
||||
- **Stereo output & recording** ✓: `fillBlock` renders interleaved stereo and the
|
||||
recorder captures two channels (voices/inserts are mono, so both channels carry
|
||||
the same sum).
|
||||
- **Responsive landscape layout** ✓ (`ui/Responsive.kt`): nav rail, side-by-side
|
||||
screens, two-column mixer/editors, wider on-screen keyboards for tablets/handhelds.
|
||||
- **Arrangement niceties** ✓: 256-bar canvas with viewport-culled drawing,
|
||||
per-lane mutes, and centre-follow scrolling.
|
||||
- **Per-bus soft-clip limiter** ✓, sampler QoL (fire-on-tap, clear, normalize),
|
||||
theme import/export, and preset `.zip` bundle import/export.
|
||||
- **Sample-pack builder** ✓: `tools/samplepack-builder.html`, a standalone offline
|
||||
page that assembles importable Sampler `.zip` bundles.
|
||||
|
||||
### Scaffolded — remaining
|
||||
1. **SF2 / XI loader instrument.** The Sampler (WAV) is done; the SoundFont/XI
|
||||
loader still falls back to the synth. Parse `.sf2`/`.xi`, feed the extracted
|
||||
PCM through the existing `SampleStore`/`SampleVoice` path. (This was not in the
|
||||
original milestone list; noted for completeness.)
|
||||
### Remaining / optional
|
||||
|
||||
All spec milestones are implemented. Next steps are polish/hardening: routing the
|
||||
Oboe backend through the chosen output device (Oboe `setDeviceId`), a full C++
|
||||
port of the synth/mixer to remove JVM/GC from the native audio callback, and the
|
||||
SF2/XI loader above.
|
||||
- **Byte-exact desktop `.sng` compatibility.** `io/SngFormat.kt` reads/writes the
|
||||
reference line format and round-trips musically; a field-for-field byte match
|
||||
with the CLI project layout is the remaining interchange nicety.
|
||||
- **Full C++ audio port.** The DSP currently runs in Kotlin behind the Oboe
|
||||
callback (via JNI). Porting the hot path to C++ would remove JVM/GC from the
|
||||
real-time thread — a performance hardening step, not a functional gap.
|
||||
- **Route the Oboe backend through the chosen output device** (Oboe
|
||||
`setDeviceId`), matching the AudioTrack path's device selection.
|
||||
|
||||
---
|
||||
|
||||
|
||||
@@ -1,4 +1,6 @@
|
||||
<!doctype html>
|
||||
<!-- SPDX-FileCopyrightText: 2026 Reactorcoremeltdown -->
|
||||
<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="utf-8">
|
||||
|
||||
Reference in New Issue
Block a user