[bigtechstruggler]

Full Fold Camera v143.3.3 proposal

This is a complete camera-app feature set, not a panorama-only PR. Following the request to submit a PR in #308, I am proposing the complete Fold Camera v143.3.3 changes together in one review: capture modes, customizable mode navigation, image processing, dual cameras, and foldable support.

I understand this is a substantial diff and upstream maintainers may ask for code changes or a narrower scope. The proposal deliberately presents the entire package together.

1. Customizable camera modes and the More menu

This is an application-wide UI feature, not specific to panoramas:

• Move/reorder camera modes in the main strip via drag-and-drop.
• Hide less-used modes in a dedicated More menu while keeping them accessible.
• Launch hidden modes directly from More, or restore them to the main mode strip using the plus action.
• Select a mode and use the editor's "Paste here" placement slots for precise insertion.
• Browse the editor with a horizontal scroll bar and auto-scroll when dragging near the edges.
• Remember the selected mode order and visible/hidden state in preferences.
• Support applicable normal modes, Dual Photo, Dual Video, Panorama 360, and foldable shortcuts where supported by the device.

Key sources: BottomTabLayout, ModeEditorOrder, CamConfig.

2. Panorama modes

• 180-degree and 360-degree panoramas with distinct mode behavior.
• On-device frame registration, stitching, alignment, motion tracking, seam handling, and output/memory safeguards.
• Capture progress and processing feedback.

3. On-device portrait processing

• Portrait photography with locally bundled ONNX segmentation and depth-estimation models.
• Background blur/compositing, depth handling, and portrait processing controls.
• Inference designed to run offline without a remote service.

4. Dual cameras and foldable hardware

• Dual Photo and Dual Video using picture-in-picture or split-screen composition.
• Live placement/size adjustments for PiP and layout continuity between dual modes.
• Composited Dual Photo snapshots and still-photo capture during Dual Video recording.
• Rear-camera selfie and secondary-display preview features on supported foldables.
• Hardware availability and concurrent CameraX support depend on the device.

5. Other camera modes and improvements

• Manual/Pro controls, burst photography, slow motion, hyperlapse, interval capture, and light trails.
• Ordinary photo/video capture and QR/barcode scanning.
• Settings and interface improvements, mode transitions, processing and capture feedback.

Project, release, and attribution

• Complete standalone source: https://github.com/bigtechstruggler/Fold-Camera
• Signed v143.3.3 APK: https://github.com/bigtechstruggler/Fold-Camera/releases/tag/V143.3.3
• Authorship and naming request: https://github.com/bigtechstruggler/Fold-Camera/blob/main/AUTHORS.md
• Third-party notices: https://github.com/bigtechstruggler/Fold-Camera/blob/main/THIRD_PARTY_NOTICES.md

Review considerations

• This PR intentionally includes the full app enhancement package as one contribution, affecting source, UI, settings, dependencies, resources, and bundled portrait model files.
• GrapheneOS Camera remains the upstream foundation, with its copyright and license preserved. Third-party components retain their separate credits and obligations.
• The independent v143.3.3 release APK is available for testing. This upstream-targeted PR has not been established as passing upstream CI, lint, or comprehensive device tests; please review dependencies, licensing, performance, hardware compatibility, and privacy/security properties.
• My earlier foldable-focused PR Add rear-camera selfie and dual-screen preview support for foldables #779 remains separate and unchanged. Some functionality may overlap.
• I would appreciate continued credit to @bigtechstruggler for the fork-specific contributions and preservation of the existing engine/module names where technically practical. This is a request, not a new license requirement.

Thank you for considering this work. In particular, please note that the reorderable camera mode strip, More menu, and other full-app changes are a substantial part of this submission alongside panorama, portrait, and dual-camera engines.