140     size_t bit_index = i & 0x7; // Amount to left shift to get bit in MSB  in bmp_read_bit()  local
141     return ((uint8_t) (buf[byte_index] << bit_index)) >> 7;  in bmp_read_bit()
146     size_t bit_index = i & 0x7; // Amount to left shift to get bit in MSB  in bmp_write_bit()  local
147     size_t bit_shift = 7 - bit_index; // Amount to right shift to get bit in LSB  in bmp_write_bit()
153     size_t bit_index = i & 0x7; // Amount to left shift to get bit in MSB  in bmp_read_byte()  local
154     if (bit_index == 0) {  in bmp_read_byte()
157     return (buf[byte_index] << bit_index) | (buf[byte_index + 1] >> (8 - bit_index));  in bmp_read_byte()
162     size_t bit_index = i & 0x7; // Amount to left shift to get bit in MSB  in bmp_write_byte()  local
163     if (bit_index == 0) {  in bmp_write_byte()
167     buf[byte_index] = (buf[byte_index] & (0xFF << (8 - bit_index))) | (byte >> bit_index);  in bmp_write_byte()
168     buf[byte_index + 1] = (buf[byte_index + 1] & (0xFF >> bit_index)) | (byte << (8 - bit_index));  in bmp_write_byte()