Fractals by Girino FOSS

Releases

• Aug 30, 2026 1.2.0
  ### Formulas and palettes - **Phoenix**, **Julia**, **Julia Phoenix**, **Celtic Mandelbrot**, and **Perpendicular Mandelbrot** added to the formula picker. - **Tricorn** label for Mandelbar (same math); formula picker scroll fixed for long catalogs. - Unified **Parameters (c / p)** screen for Julia and Phoenix formulas. - Seven new palettes: **Fire**, **Ocean**, **Grayscale**, **Sunset**, **Neon**, **Viridis**, **Electric** (12 palettes total).

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  ### Session and iteration - **Cold-start session restore** (issue #19): viewport, formula, palette, and smooth setting survive process death. - Iteration settings persist independently: HUD **Reset** and formula change no longer wipe iteration mode/values; only **Reset to defaults** on the Iterations screen restores factory settings. Formula change still returns viewport to home. - Defaults: Fixed / Adaptive pass-1 max **64**; adaptive absolute cap **2^18** (hard max **2^30**); max refinement rounds **1–31** (default **18**). ### Rendering and UX - Fix **black band on outer escapes** at high maxIter on RGB/Neon palettes (issue #51). - **Adaptive**: skip all-black progressive preview publishes and defer UI updates until the first border escape (issue #48). - Smooth coloring for power-k maps uses **log(k)** escape radius (issue #40). - **Shipbar** fixed (conjugate after abs — distinct from Burning Ship). - Keep screen on while a render is in progress. - Fix chained pinch during a frozen render preview; skip redundant re-render on resume when the frame is already ready. - Fix false soft warning when Fixed mode max iter exceeds 4096. ### CI and tests - CI runs **backendTestDebugUnitTest** only (no Robolectric) for reliable GitHub Actions runs. - Fix cooperative worker cancel in parallel render tests (CI timeout hang). - Shorter headless render fixtures, per-class JVM fork, render-worker shutdown await in gesture test tearDown. ### Issue triage - Closed as **won't do**: #20 (accessibility), #38 (scalar remaining ops), #44 (deep-zoom perturbation), #47 (adaptive palette), #50 (iteration-step / extended spatial progressive experiments). - All GitHub issues now closed; no open backlog.
• Aug 24, 2026 1.1.0
  ### UI and navigation - Bottom HUD for formula, palette, smooth, zoom −/+, and reset (issue #5); HUD sits above the system navigation bar. - Zoom in/out controls and double-tap zoom at the touch point (issue #6). - Material 3 dark theme with AppCompat; formula/palette pickers as bottom sheets with the current item marked (issues #10 / #13). Removed full-screen `ListActivity` pickers. - Long-press shows complex coordinates; lift the finger to dismiss (issue #11). - Removed the unreachable options menu / Exit item under NoActionBar (issue #12);

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  leave via system Back or Recents. - Edge-to-edge display: fractal draws under transparent status and navigation bars with light system icons; HUD and progress stay clear of chrome (issue #14). - Adaptive launcher icon with monochrome layer for Android 13+ themed icons (issue #15). - Palette picker rows show a color swatch strip from PaletteProvider (issue #16). - Palette labels: RGB (HSB hue sweep) and BGR (blue→green→red LUT) replace Rainbow 1/2. - Corner status overlay shows formula, palette, smooth coloring, iteration algorithm, and effective Iter on a more transparent panel; tap to hide, tap the chip to show again (issue #17). HUD bar background is more transparent too. - HUD icon bar (+, −, Reset, Export) and hamburger overflow with Formula, Palette, Smooth (on/off), Iterations, Help, and About (issues #29 / #46). - Help and About screens from the hamburger menu; About includes GAL license reference and optional external links (issue #22). ### Export, state, licensing - Export current viewport as PNG: share sheet (FileProvider, no network) or save to Pictures/Fractals via MediaStore on Android 10+; older devices use the system save dialog (issue #18). One-tap Export on the HUD bar (issue #46). - Rotation and activity recreate restore viewport, formula, palette, and smooth via saved instance state (issue #21). - **GAL-only** licensing; drop F-Droid distribution path and BSD dual-license (issue #23). GitHub Releases and Zapstore remain the supported channels. ### Rendering and performance - Determinate top progress bar while progressive render runs (issue #9), weighted by samples across steps 8→4→2→1. - Parallel progressive render: row-banded workers (up to min(8, CPU cores)) fill each step 8→4→2→1; gesture gate and atomic handoff unchanged (issue #25). - Formula picker rows show a mini fractal thumbnail preview (issue #30). - Iteration settings screen: fixed max (default 40) or scale-with-zoom (base 40, multiplier 1.2); values persist in SharedPreferences (issue #26). - Adaptive iteration mode (issue #28): after progressive step 1, refine only interior border pixels by doubling the limit each round. Iteration fields accept up to 1048576 (hard); values above 4096 show a soft warning. Overlay Iter shows the last Adaptive border limit; pass-1 is not raised on zoom. Adaptive recolors only retested border pixels (no full-frame palette remap). Doubling always starts at pass-1; early-stop on an empty border pass only after reaching the Adaptive max shown on the overlay (same field). Screen-edge perimeter is always part of the Adaptive border (every round). - Adaptive warm-start: pass-1 stores orbit checkpoints; border retests continue from the previous iteration and Z via sampleContinue (no full restart). - Adaptive border refine uses an indeterminate top progress bar (issue #31). - Adaptive performance: separate worker pool at 2× CPU cores (cap 16) for border collect and retest; pass-1 stays at min(8, cores). Border seam scan runs in parallel; in-progress frames publish every ~4000 border samples or 250 ms (bitmap built on the render thread, swapped on the UI thread). - Adaptive visited cache: while stabilizing at one limit, skip border pixels already sampled at that limit; clear the visited set when the iteration cap doubles (only newly exposed seam pixels are retested until the next double). - Precomputed 1024-entry LUTs for Default Green/Blue/Red, HSB (RGB), and legacy Default palettes (same indexing as SmoothFixed / BGR) (issue #32). - Progressive fill maps complex X by incremental column stepping (issue #34). - Worker-local reusable EscapeSample via sampleInto / sampleContinueInto (issue #33; no significant FPS change on device). - Scalar Mandelbar and Fourth Mandelbrot steps (no per-iteration Complex allocation) (issue #36). - Coarse progressive fillBlock uses Arrays.fill per row for steps 8/4/2 (issue #37). - Fix CI hang on testDebugUnitTest: MandelbrotView render pools are daemon threads and tests shut them down in tearDown; unit-test task times out after 5 minutes instead of stalling the job.
• Aug 23, 2026 1.0.4
  - Fix **Smooth palette** menu toggle (issue #4): continuous iteration coloring now turns on/off as expected; the menu item shows a checkmark when enabled.
• Aug 22, 2026 1.0.3
  - Anchor pinch zoom on the finger midpoint (issue #3): preview and committed bitmap keep the content under your fingers; pinch+drag walks with the focus. - Preserve the v1.0.2 deferred-commit + atomic-handoff model (no flicker). - Reset focus state on bitmap publish so pinch-drag is not applied twice. - Preview may show edge gaps while transforming the stale bitmap; the new render always fills the screen.
• Aug 22, 2026 1.0.2
  Stable release. Same fixes as 1.0.2-alpha2, validated on device. - Eliminate flicker: gesture preview stays on screen until the new bitmap publishes (atomic handoff at first render step). - Ignore premature pinch end when fingers get close — zoom now commits only after the last finger lifts. - Block bitmap publication while a touch gesture is in progress; stale progressive frames never replace the screen. - Restore the simple v1.0.0 gesture model (`ScaleGestureDetector` + canvas preview) after complex handoff attempts regressed.
• Aug 22, 2026 1.0.1
  - Fix pinch-zoom viewport jumps and keep the fractal point under your fingers (issue #2). - Smooth pinch and pan: manual two-finger tracking, canvas preview during gestures, progressive re-render after release. - Fix pan speed when a zoom preview is active and avoid blank areas during gesture handoff. - Append a compile timestamp to debug build version names for on-device identification.
• Aug 14, 2026 1.0.0
  - Add BSD 2-Clause as an F-Droid-compatible alternative to the GAL. - Add localized F-Droid metadata, icon, and current FOSS screenshots. - Document the F-Droid build and submission process. - Promote the modernized FOSS edition from alpha to its first stable release.