Namespace LansMap.Core.TileCodecs.Bc1

Classes

Bc1Decoder

Decodes BC1 (DXT1) blocks to RGBA8888 for tests and cache-format migration.

Bc1Encoder

Encodes RGBA8888 into BC1 blocks (8 bytes per 4x4 texels, 4 bpp) with a fast range-fit, no iterative refinement.

Bc1MipChain

CPU mip-chain arithmetic and 2x2 box downsampling for block-compressed tiles, floored at 1x1.

Bc1TileCodec

Disk-format codec for BC1 GPU blocks already stored in a cache blob: no image decode, extract the mip levels an upload needs.

TileBc1Payload

On-disk BC1 mip-chain payload: base dimensions, level count, then every mip level's blocks concatenated, level 0 first.