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Uladzimir KarpenkaandClaude Opus 4.8
55d5bf01cf
WaterfallView: drop per-frame TLazIntfImage + LoadFromIntfImage (device bitmap recreation + full pixel-format conversion every frame). Write pixels directly into the bitmap via BeginUpdate/ScanLine like SpectrumView already does, with platform-native byte order (ARGB on Cocoa, BGRA elsewhere). Replace per-pixel float colorization with a 512-entry dB->color LUT rebuilt only when WfLow/WfHigh/theme change beyond a small threshold. Turn the bitmap itself into a ring buffer: each frame builds a single new row and writes one ScanLine; scrolling is done at paint time via two CopyRect calls. Removes both full-frame passes per frame (image memmove + buffer->bitmap copy), cutting per-frame cost from O(W*H) to O(W). TX mode preserved by leaving out-of-span columns untouched in the row buf. SpectrumView: rewrite the per-frame alpha-restore pass from a strided per-byte loop to a sequential per-dword OR with the alpha mask (bit-identical output, sequential memory access). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>