21 uint8_t LowestBits(uint8_t byte, size_t bit_count) {  in LowestBits()  argument
22   RTC_DCHECK_LE(bit_count, 8u);  in LowestBits()
23   return byte & ((1 << bit_count) - 1);  in LowestBits()
28 uint8_t HighestBits(uint8_t byte, size_t bit_count) {  in HighestBits()  argument
29   RTC_DCHECK_LE(bit_count, 8u);  in HighestBits()
30   uint8_t shift = 8 - static_cast<uint8_t>(bit_count);  in HighestBits()
64   size_t bit_count = 0;  in CountBits()  local
66     bit_count++;  in CountBits()
69   return bit_count;  in CountBits()
110 bool BitBuffer::PeekBits(uint32_t* val, size_t bit_count) {  in PeekBits()  argument
111   if (!val || bit_count > RemainingBitCount() || bit_count > 32) {  in PeekBits()
119   if (bit_count < remaining_bits_in_current_byte) {  in PeekBits()
120     *val = HighestBits(bits, bit_offset_ + bit_count);  in PeekBits()
125   bit_count -= remaining_bits_in_current_byte;  in PeekBits()
126   while (bit_count >= 8) {  in PeekBits()
128     bit_count -= 8;  in PeekBits()
132   if (bit_count > 0) {  in PeekBits()
133     bits <<= bit_count;  in PeekBits()
134     bits |= HighestBits(*bytes, bit_count);  in PeekBits()
140 bool BitBuffer::ReadBits(uint32_t* val, size_t bit_count) {  in ReadBits()  argument
141   return PeekBits(val, bit_count) && ConsumeBits(bit_count);  in ReadBits()
148 bool BitBuffer::ConsumeBits(size_t bit_count) {  in ConsumeBits()  argument
149   if (bit_count > RemainingBitCount()) {  in ConsumeBits()
153   byte_offset_ += (bit_offset_ + bit_count) / 8;  in ConsumeBits()
154   bit_offset_ = (bit_offset_ + bit_count) % 8;  in ConsumeBits()
237 bool BitBufferWriter::WriteBits(uint64_t val, size_t bit_count) {  in WriteBits()  argument
238   if (bit_count > RemainingBitCount()) {  in WriteBits()
241   size_t total_bits = bit_count;  in WriteBits()
244   val <<= (sizeof(uint64_t) * 8 - bit_count);  in WriteBits()
253       std::min(bit_count, remaining_bits_in_current_byte);  in WriteBits()
256   if (bit_count <= remaining_bits_in_current_byte) {  in WriteBits()
265   bit_count -= bits_in_first_byte;  in WriteBits()
266   while (bit_count >= 8) {  in WriteBits()
269     bit_count -= 8;  in WriteBits()
274   if (bit_count > 0) {  in WriteBits()
275     *bytes = WritePartialByte(HighestByte(val), bit_count, *bytes, 0);  in WriteBits()