Function signExtend

encoder/3rdparty/android_astc_decomp.cpp:281–287

}

inline deInt32 signExtend (deInt32 src, int numSrcBits)
{
    DE_ASSERT(basisu_astc::inRange(numSrcBits, 2, 31));

    const bool negative = (src & (1 << (numSrcBits-1))) != 0;
    return src | (negative ? ~((1 << numSrcBits) - 1) : 0);
}

typedef uint16_t deFloat16;