Commits on January 16, 2026

1. Add time format documentation to config

   Document common strftime patterns:
   - 24-hour with/without seconds
   - 12-hour with AM/PM
   - Day and full date formats

   mfwolffe committed 3 months ago
   99a513d
2. Add dev feature for escape key exit

   Production builds no longer allow escape to exit - only successful
   PAM authentication unlocks the screen. Use --features dev for testing.

   mfwolffe committed 3 months ago
   3048d99
3. Optimize blur with downsample-blur-upsample

   Significantly faster blur processing by:
   1. Downsampling image to 1/4 resolution
   2. Applying blur at reduced size (16x fewer pixels)
   3. Upsampling back to original resolution
   
   Especially beneficial on ARM where image processing is slower.

   mfwolffe committed 3 months ago
   1eace39
4. Integrate text overlays into render loop

   - Add overlay renderer initialization
   - Composite time, caps lock, failed attempts, and cooldown overlays
   - Position overlays relative to ring center
   - Add periodic 1-second timer for time display updates
   - Make escape key exit conditional on 'dev' feature

   mfwolffe committed 3 months ago
   4c3739e
5. Add text overlay renderer for lock screen

   Pango/Cairo-based text rendering for:
   - Configurable time display with strftime formats
   - Caps Lock warning indicator
   - Failed authentication attempts counter
   - Cooldown timer display
   
   Includes alpha compositing for overlay blending onto background.

   mfwolffe committed 3 months ago
   db39b04
6. Add chrono dependency for time formatting

   Required for configurable time display on lock screen with strftime patterns.

   mfwolffe committed 3 months ago
   498655a
7. Add cooldown after repeated failed attempts

   - Block authentication during cooldown period
   - Start cooldown after max_attempts failures (default 3)
   - Configurable cooldown duration (default 5 seconds)
   - Reset attempt counter after cooldown expires

   mfwolffe committed 3 months ago
   af3cae8
8. Add target/ to .gitignore

   mfwolffe committed 3 months ago
   a9436ea
9. Add main entry point and event loop

   - CLI with clap: --daemon, --config, --debug, --lock
   - Screenshot capture and blur on startup
   - Keyboard input handling with ring feedback
   - PAM authentication on Enter key
   - Timer-based state updates and rendering

   mfwolffe committed 3 months ago
   f6727e8
10. Add PAM authentication module

    - Background thread for non-blocking auth
    - Password verification via system-auth PAM stack
    - Requires /etc/pam.d/garlock config

    mfwolffe committed 3 months ago
    05cfe0d
11. Add dual state machine for auth and input

    - AuthState: Idle, Validating, Invalid
    - InputState: Idle, Letter, Backspace, Clear, Neutral
    - Timer-based state decay (300ms input, 1500ms invalid)
    - Ring state mapping from combined auth/input states

    mfwolffe committed 3 months ago
    22e857e
12. Add secure password buffer with zeroize

    - Automatic memory zeroing on drop
    - UTF-8 character support for international passwords
    - Proper backspace handling for multi-byte characters

    mfwolffe committed 3 months ago
    bb76690
13. Add XKB keyboard input handling

    - Keycode to character mapping via xkbcommon
    - Special key detection: Enter, Backspace, Escape, Ctrl+U
    - Modifier key filtering (Shift, Ctrl, Alt, Caps Lock)
    - Caps Lock state detection

    mfwolffe committed 3 months ago
    5367521
14. Add swaylock-style ring indicator

    - Cairo-based circular ring rendering
    - State-based colors: idle, typing, verifying, wrong, clear
    - Segment highlighting for keystroke feedback
    - Alpha compositing onto background

    mfwolffe committed 3 months ago
    f3eb3e6
15. Add background processing with gaussian blur

    - Convert screenshot to blurred background
    - Configurable blur radius and brightness
    - Fallback solid color support

    mfwolffe committed 3 months ago
    c6c3d0f
16. Add screenshot capture from root window

    - XGetImage-based screen capture
    - BGRA pixel format for X11 compatibility

    mfwolffe committed 3 months ago
    f745691
17. Add X11 window with keyboard/pointer grabs

    - LockerWindow for fullscreen override-redirect window
    - Keyboard and pointer grabs for security
    - RandR monitor detection for multi-monitor support

    mfwolffe committed 3 months ago
    4e4bf68
18. Add configuration module with TOML support

    - Config structs for general, background, ring, indicator, font
    - Auto-create default config on first run
    - Load from ~/.config/garlock/config.toml

    mfwolffe committed 3 months ago
    7e11bac
19. Add garlock crate with error types

    mfwolffe committed 3 months ago
    9b88a72
20. Initial project setup

    - Workspace Cargo.toml with dependencies
    - .gitignore for Rust project

    mfwolffe committed 3 months ago
    4e5f0ff