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- accelerate_astc=Gpu with astc_recompression=Bc1/Bc3 now decodes ASTC
with the GPU decoder into a temporary RGBA8 image (dedicated memory,
freed once the GPU is past it) and compresses it with a new compute
shader (bc_encoder.comp: bounding-box endpoints along the colours'
covariance, inset 1/16, nearest palette entry; BC3 alpha ramp; BC1
punch-through), then copies the blocks into the image. No CPU decode,
so streamed textures are ready the frame they are first used instead
of showing placeholders for seconds; the decode pass no longer waits
for the GPU on this path.
- The CPU path (CpuAsynchronous) fills a new image with zero blocks
before its first decode instead of showing stale VRAM, and the
transcode pool is a quarter of the hardware threads.
- Switch 2 titles: collector thresholds near the device budget, re-read
every 60 frames from VK_EXT_memory_budget (another game shrank it from
7.0 to 5.4 GB).
- EDEN_NX2_HIDE_WINDOW=0 now leaves the window visible.
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