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photocraft/crates/ui-egui/tests
65e8d5f020 GPU canvas: price the display textures before building them (#2934) (#3299)
The GPU canvas built a full-resolution, mipmapped texture set covering the
whole declared canvas (DocTextures::new) with only per-texture side limits,
so a document's size alone decided how much GPU memory was committed: a
300000x300000 canvas asks for hundreds of gigabytes.

canvas_texture_bytes prices the set in closed form (every tile and mip
level) and DocTextures::new refuses one over canvas_budget (a quarter of
RAM, at least MIN_GPU_BUDGET) without creating anything. refresh reports
"over-budget" and ensure_gpu then draws the document on the reduced CPU
canvas, so a supported large document still displays.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 14:16:27 -04:00
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