ref: 5dc8c92d83a2025831e94815d4298212aa5502ac
dir: /tools/lz/nullcomp.c/
#include "proto.h"
/*
Null compressor: stores data uncompressed, using literal (0) commands only.
Methods defined: 2
Flags values: 0 = split a trailing 33-to-64-byte block at the end into two short blocks; 1 = don't
*/
struct command * store_uncompressed (__attribute__((unused)) const unsigned char * data, __attribute__((unused)) const unsigned char * bitflipped, unsigned short * size, unsigned flags) {
unsigned short position, block, remainder = *size;
struct command * result = NULL;
*size = 0;
for (position = 0; remainder; position += block, remainder -= block) {
block = (remainder > MAX_COMMAND_COUNT) ? MAX_COMMAND_COUNT : remainder;
if (!(flags & 1) && (block <= (2 * SHORT_COMMAND_COUNT)) && (block > SHORT_COMMAND_COUNT)) block = SHORT_COMMAND_COUNT;
result = realloc(result, sizeof(struct command) * (1 + *size));
result[(*size) ++] = (struct command) {.command = 0, .count = block, .value = position};
}
return result;
}