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// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) 2026 Fernando Sahmkow
/// @file bc7.cpp
/// @brief BC7 block-compression codec: RGBA8 ↔ BC7 decode and encode.
///
/// Fully decodes and encodes all 8 BC7 modes (0–7) according to the
/// BC7/BPTC specification. No external dependencies – pure C++20.
///
/// Implementation is split into .inl parts under bc7/ for readability:
/// decode.inl – mode table, block decoder, decodeTexture
/// encode_common.inl – colour helpers, PCA, endpoint fitting
/// encode_mode[0-7].inl – individual mode encoders
/// encode_block.inl – partition search, encode_block dispatch, encodeTexture
// namespace whiteout::textures