fca8fe0902
Dabs now go only into preview tiles of the shown level at every zoom, including a level 0 preview overlay that the compositor shows in place of the layer tile. The layer tiles are painted by the engine, and releasing a stroke commits history without waiting for them. Stroke opacity coverage is shared per tile across a stroke's flushes, each engine job only replays the dabs that touch its tile, and undo drops an open preview instead of painting it. Readers that need final pixels settle explicitly; the renderer no longer does. tp::Map::remove rehashed the whole table on every call, which made applying thousands of finished tiles quadratic; it now rehashes only when the table is mostly empty or full of deleted slots. |
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| CMakeLists.txt | ||