The decoder only checked for double padding ('==') at input[len-2],
subtracting 1 output byte. Single padding ('=') at input[len-1] was
not handled, leaving 1 extra garbage byte in the decoded output.
This affected 2 out of 3 input lengths (any input where len % 3 == 2),
producing decoded output 1 byte longer than expected.
Fix: check input[len-1] for '=' first (subtract 1 byte), then check
input[len-2] for '=' (subtract another byte for double padding).
Added 7 roundtrip tests covering: no padding (3n bytes), single
padding (3n+2 bytes), double padding (3n+1 bytes), empty input,
lengths 1-20, all 256 byte values, and URL-safe alphabet.
Co-authored-by: prime intellect <prime@prime-intellects-Mac-Studio.local>
* Introduce knowledge of device screen bounds/cutous/"safe inset areas"
Tested working on iOS, implemented for Android but not yet tested.
The approach may need to be improved, because it currently restricts
the whole app window to being fully within the safe areas.
We may not necessarily want that, or if we do, then we probably also
need to support setting the base color of the reserved system areas
(beneath the app bounds and above in the notification bar area).
* Use metal scissor rect to prevent SVGs/icons from being mis-drawn in safe areas
This prevents anything from being accidentally drawn in the safe
inset areas when the pass clear_color is transparent. Of course,
we can still draw the pass clear_color in those areas.
* Workaround: apply a scissor rect within safe inset area
Only apply it to clip any DrawSvg/DrawVector-specific draw calls
within the safe inset area.
This is unfortunately still just a hacky solution, because if we
actually do want to draw svg/vectors within that safe inset area,
then we won't be able to.
* Properly fix gpu artifacts when rendering SVGs
The `DrawSvg` vertex shader had a GPU fringe expansion pass designed for `fill_gpu()` mode, where fringe vertices encode per-vertex normals in the `v` and `stroke_dist` fields. SVG rendering used `fill_gpu()`, which produces **coincident-vertex fringe triangles** (body and outer fringe at the same CPU position, expanded on the GPU). These zero-area triangles caused **Metal GPU rasterization artifacts** — stray fragments appearing at unexpected screen positions.
**`draw/src/svg/render.rs`** — Switch SVG fill from `fill_gpu()` to `fill()`. Pre-computed fringe produces vertices at physically different positions (no coincident vertices).
**`draw/src/shader/draw_svg.rs`** — Remove the GPU fringe expansion code from the vertex shader. With pre-computed fringe, the `v` and `stroke_dist` fields are constants (`1.0` and `0.0`), not per-vertex normals. The expansion code was misinterpreting `v=1.0` as a horizontal normal, corrupting vertex positions.
**`libs/apple_sys/src/lib.rs`** — Added `MTLScissorRect` struct (unused now but available for future use).
**`src/home/rooms_sidebar.rs`** — Changed shadow offset from `vec2(1.0, 0.0)` to `vec2(0.0, 10.0)` so the `RoundedShadowView` shadow only draws below the header, eliminating the gray line at the top of the screen (issue 1).
* Expose safe area inset padding to app, don't forcibly apply it to root window
* Fixed safe area insets padding, with support for rotation
We now make these values available to the app dev (see below)
instead of forcibly inserting them as padding on all root windows.
This will allow each app to choose how and when they want to apply said pad values
(or if they want to at all) in an easy way, both at the Splash level
or more dynamically/programmatically at the Rust level.
Required quite a few changes to how things work in the iOS platform plumbing,
also described below in the generated summary:
On iOS and Android, Makepad apps render content behind device cutouts (Dynamic Island, camera notch), home indicators, and rounded screen corners because the framework has no awareness of safe area insets.
Added platform-level safe area inset querying on iOS and Android, exposed the values through both the Splash DSL (`mod.widgets.SAFE_INSET_PAD_*`) and Rust (`cx.display_context.safe_area_insets`), and ensured they update correctly on device rotation.
**New types:**
- `UIEdgeInsets` struct in `libs/apple_sys` for Objective-C interop
- `SafeAreaInsets` struct in `platform/src/event/window.rs` (top/right/bottom/left in logical points)
- Added `safe_area_insets` field to `WindowGeom` and `DisplayContext`
**iOS (`platform/src/os/apple/ios/`):**
- Query `[UIView safeAreaInsets]` from the MTKView in `check_window_geom()`
- Added `viewSafeAreaInsetsDidChange` callback on `MakepadViewController` to detect inset changes on rotation
- Populate `display_context` before `Event::Startup` so values are available during app script initialization
- Fixed MTKView setup: removed redundant `addSubview:` (conflicted with `setRootViewController:`) and added autoresizing mask — both required for safe area propagation on rotation
**Android (`platform/src/os/linux/android/`):**
- Added `SafeAreaInsets` variant to `FromJavaMessage` and corresponding JNI function
- Java side (`ResizingLayout.onApplyWindowInsets`): queries `WindowInsets.Type.systemBars() | displayCutout()` and sends insets to Rust (converted from px to dp)
- Added `safe_area_insets` field to `CxOs`, populated on `SafeAreaInsets` message and included in `WindowGeom` construction
- Added `surfaceOnSafeAreaInsets` native method to `MakepadNative.java`
**Splash DSL variables (`widgets/src/lib.rs`):**
- `mod.widgets.SAFE_INSET_PAD_TOP`
- `mod.widgets.SAFE_INSET_PAD_BOTTOM`
- `mod.widgets.SAFE_INSET_PAD_LEFT`
- `mod.widgets.SAFE_INSET_PAD_RIGHT`
- Values read from `display_context` at widget module initialization (during `Event::Startup`)
- Updated on the script heap via `Cx::update_safe_inset_script_values()` on `WindowGeomChange`
**Rotation support:**
- Added `pending_script_reapply` flag on `Cx` — set when safe area insets change, checked at the end of the platform event loop iteration
- Fires a deferred `LiveEdit` event to re-evaluate and re-apply all Splash widget definitions with updated inset values
- Implemented in both iOS and Android event loops
**StackNavigationView fix (`widgets/src/stack_navigation.rs`):**
- Full-screen stack views now position at `max(safe_area_insets.top, parent_rect.pos.y)` instead of hardcoded `y: 0`, respecting both mobile safe areas and desktop title bars
**All other platforms:**
- Added `..Default::default()` to all `WindowGeom` constructors (macOS, Windows, Linux X11/Wayland/Direct, web, tvOS, OpenHarmony) so the new `safe_area_insets` field defaults to zeros
