Decode standard base64 into bytes using native atob validation.
ASCII whitespace and omitted padding are accepted; invalid alphabet or
padding throws. This does not decode text or accept base64url.
Decode an uncompressed or RLE-compressed 24/32-bit truecolor TGA image
into ModelTextureData, with bottom-to-top RGBA rows and flipY: false.
Throws an Error for invalid or unsupported input.
Decompress bytes using native DecompressionStream, preserving the input.
Rejects for malformed data, unsupported formats, or unavailable native APIs.
No base64/text detection or fallback is performed.
Worker-safe helpers available to worker preprocessors.