tilt-shift-camera/app/proguard-rules.pro

# Add project specific ProGuard rules here.
# CameraX and GMS Location ship their own consumer ProGuard rules.
Initial implementation of Tilt-Shift Camera Android app A dedicated camera app for tilt-shift photography with: - Real-time OpenGL ES 2.0 shader-based blur preview - Touch gesture controls (drag, rotate, pinch) for adjusting effect - CameraX integration for camera preview and high-res capture - EXIF metadata with GPS location support - MediaStore integration for saving to gallery - Jetpack Compose UI with haptic feedback Tech stack: Kotlin, CameraX, OpenGL ES 2.0, Jetpack Compose Min SDK: 26 (Android 8.0), Target SDK: 35 (Android 15) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> 2026-01-28 15:26:41 +01:00			`# Add project specific ProGuard rules here.`
Fix concurrency, lifecycle, performance, and config issues from audit Concurrency & bitmap lifecycle: - Defer bitmap recycling by one cycle so Compose finishes drawing before native memory is freed (preview bitmaps, thumbnails) - Make galleryPreviewSource @Volatile for cross-thread visibility - Join preview job before recycling source bitmap in cancelGalleryPreview() to prevent use-after-free during CPU blur loop - Add @Volatile to TiltShiftRenderer.currentTexCoords (UI/GL thread race) - Fix error dismiss race with cancellable Job tracking Lifecycle & resource management: - Release GL resources via glSurfaceView.queueEvent (must run on GL thread) - Pause GLSurfaceView when entering gallery preview mode - Shut down captureExecutor in CameraManager.release() (thread leak) - Use WeakReference for lifecycleOwnerRef to avoid Activity GC delay - Fix thumbnail bitmap leak on coroutine cancellation (add to finally) - Guarantee imageProxy.close() in finally block Performance: - Compute gradient mask at 1/4 resolution with bilinear upscale (~93% less per-pixel trig work, ~75% less mask memory) - Precompute cos/sin on CPU, pass as uCosAngle/uSinAngle uniforms (eliminates per-fragment transcendental calls in GLSL) - Unroll 9-tap Gaussian blur kernel (avoids integer-branched weight lookup that de-optimizes on mobile GPUs) - Add 80ms debounce to preview recomputation during slider drags Silent failure fixes: - Check bitmap.compress() return value; report error on failure - Log all loadBitmapFromUri null paths (stream, dimensions, decode) - Surface preview computation errors and ActivityNotFoundException to user - Return boolean from writeExifToUri, log at ERROR level - Wrap gallery preview downscale in try-catch (OOM protection) Config: - Add ACCESS_MEDIA_LOCATION permission (GPS EXIF on Android 10+) - Accept coarse-only location grant for geotags - Remove dead adjustResize (no effect with edge-to-edge) - Set windowBackground to black (eliminates white flash on cold start) - Add values-night theme for dark mode - Remove overly broad ProGuard keeps (CameraX/GMS ship consumer rules) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> 2026-03-05 13:44:12 +01:00			`# CameraX and GMS Location ship their own consumer ProGuard rules.`