Function DecodeBc4

externals/bc_decoder/bc_decoder.cpp:1497–1501

    }

    void DecodeBc4(const uint8_t *src, uint8_t *dst, size_t x, size_t y, size_t width, size_t height, bool isSigned) {
        const auto *red{reinterpret_cast<const BC_channel *>(src)};
        size_t pitch{R8Bpp * width};
        red->decode(dst, x, y, width, height, pitch, R8Bpp, 0, isSigned);
    }

    void DecodeBc5(const uint8_t *src, uint8_t *dst, size_t x, size_t y, size_t width, size_t height, bool isSigned) {
        const auto *red{reinterpret_cast<const BC_channel *>(src)};