 Emil
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b52798c634
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perf: UiLayer HashMap → flat Vec array — 62 FPS → 95 FPS
Replaced HashMap<(i32,i32), UiCell> with Vec<Option<UiCell>> indexed
by y*width+x. dirty_keys Vec tracks non-None cells for iteration.
- set/set_alpha: O(1) array write (was O(1) amortized HashMap insert
with hashing overhead)
- get: O(1) array index (was HashMap lookup)
- keys(): iterate dirty_keys Vec (was HashMap keys iterator)
- clear(): memset None over flat array (was HashMap::clear)
- resize() called in build_ui to size array to viewport
- All 185 tests + 14 scenarios pass
- Benchmark: 95.1 FPS (was 61.9 — 53% improvement)
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2026-06-22 13:32:47 +03:00 |
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Emil
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357db17c2f
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feat: GPU optimization — lighting, viewport CA, benchmark mode, 531 FPS
- Resolution: 8x8 world cells, 2x2 UI cells (UI_SCALE=4)
- GPU lighting: vertex-shader computed, light source list buffer (max 64)
instead of O(N×R²) grid scan, O(N×S) per cell
- Viewport-aware CA: iterate only active chunks, not all 250×250
- Flat array entity/item/shadow maps instead of HashMaps
- Flat 128-entry ASCII atlas array instead of HashMap lookup
- Partial grid upload: viewport + 30-cell margin only
- Pre-allocated viewport arrays in renderer structs (zero alloc/frame)
- Skip CPU lighting for GPU modes (pass None)
- Benchmark mode: --mode benchmark with per-subsystem timing
- GpuLightSource struct, light_count in push constants
- gather_sources_in_range() for viewport-scoped source gathering
Benchmark (600 ticks, release):
Graphics: 531 FPS (was 386, +38%), render 1013us (was 1699us, -40%)
ASCII: 402 FPS (was 313, +28%), render 1502us (was 2346us, -36%)
All 171 tests + 14 scenarios pass.
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2026-06-21 16:09:45 +03:00 |
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