Namespace LansMap.Core.TileCodecs.Astc4x4

Classes

Astc4x4Decoder

Decodes the two ASTC 4x4 block shapes Astc4x4Encoder emits, for tests and for cache-format migration.

Astc4x4Encoder

Encodes RGBA8888 into ASTC 4x4 blocks (16 bytes per 4x4 texels, 8 bpp), the preferred mobile GPU format.

Astc4x4TileCodec

Disk-format codec for ASTC 4x4 GPU blocks already stored in a cache blob: no image decode, extract the mip levels an upload needs.

TileAstc4x4Payload

On-disk ASTC 4x4 mip-chain payload: base dimensions, level count, then every mip level's blocks concatenated, level 0 first.