Method peek

3rdparty/bimg/src/image.cpp:1749–1757

		}

		uint16_t peek(uint16_t _offset, uint8_t _numBits)
		{
			const uint16_t bitPos = m_bitPos + _offset;
			const uint16_t shift  = bitPos & 7;
			uint16_t pos  = bitPos / 8;
			uint32_t data = 0;
			bx::memCopy(&data, &m_data[pos], bx::min(4, 16-pos) );
			return uint8_t( (data >> shift) & ( (1 << _numBits)-1) );
		}

		const uint8_t* m_data;
		uint16_t m_bitPos;