Martin Brook 9b40d1cb32 perf: optimize PNG decoder with line-based conversion and integer scaling ... Two optimizations that provide ~2.4x speedup: 1. Line-based grayscale conversion: process entire source row sequentially before sampling, improving cache locality and reducing function call overhead 2. Bresenham-style integer stepping: replace per-pixel floating-point division with integer accumulator for nearest-neighbor scaling Benchmark results (ESP32-C3, 8-bit indexed PNGs): - Scale 1.0 images: ~2.7x faster - Scaled images: ~1.9x faster - Total render time: 4060ms -> 1705ms		2026-02-03 18:54:41 +00:00
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Epub	perf: optimize PNG decoder with line-based conversion and integer scaling	2026-02-03 18:54:41 +00:00
Epub.cpp	perf: optimize large EPUB indexing from O(n^2) to O(n) (#458)	2026-01-28 01:29:15 +11:00
Epub.h	feat: dict based Hyphenation (#305)	2026-01-19 12:56:26 +00:00