c373af461e
New export format alongside audio/image/video/SVG. GIF is multi-frame like video but palette-quantized with no audio, so it reuses the per-frame RGBA render/readback path (render_frame_to_gpu_rgba) and streams frames to a background encoder. - core: GifExportSettings (resolution, framerate, loop, transparency, fit, time range) with centisecond-quantized frame delay + tests. - gif_exporter: encoder pipeline. Per-frame NeuQuant quantization is the dominant cost and is per-frame independent, so it's fanned out across a worker pool (cores-1, capped 8); a writer thread reorders and LZW-encodes sequentially. Uses the `gif` crate directly (already resolved via `image`). - orchestrator: start_gif_export + render_next_gif_frame (one frame per egui update), wired into is_exporting/has_pending_progress/cancel. - dialog: GIF tab + settings; main.rs: handle ExportResult::Gif and pump frames. - Cargo: opt-level=3 for gif/color_quant/weezl in the dev profile so debug builds aren't crippled by unoptimized NeuQuant loops. Together these cut a 10s GIF export from ~1:43 to ~3s. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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