static bool writeIndexes(NexasPackage* package, bool isBfeFormat) {
if (isBfeFormat)
return writeBfeIndex(package);
ByteArray* encodedIndexes =
huffmanEncode(L"Entry Indexes", baData(package->indexes), baLength(package->indexes));
if (encodedIndexes == NULL) {
writeLog(LOG_QUIET, L"ERROR: Unable to encode the indexes!");
return false;
}
byte* encodedData = baData(encodedIndexes);
u32 encodedLen = baLength(encodedIndexes);
writeLog(LOG_VERBOSE, L"The length of the compressed index is %u.", encodedLen);
/// Important: XOR encryption!
for (u32 i = 0; i < encodedLen; ++i) {
encodedData[i] ^= 0xFF;
}
if (fwrite(encodedData, 1, encodedLen, package->file) != baLength(encodedIndexes)) {
writeLog(LOG_QUIET, L"ERROR: Unable to write the indexes to the package!");
return false;
}
if (fwrite(&encodedLen, 4, 1, package->file) != 1) {
writeLog(LOG_QUIET, L"ERROR: Unable to write the index length to the package!");
return false;
}
return true;
}
void test_huffmanEncodeACC_given_run_and_bitsize_0x01_should_get_0x01_chg_to_0x4000(void){
uint8 runLength = 0x00;
uint8 bitSize = 0x01;
uint16 result;
result = huffmanEncode(runLength, bitSize, acChrominanceTable);
TEST_ASSERT_EQUAL(0x4000, result);
}
void test_huffmanEncodeACC_given_run_and_bitsize_0xB3_should_get_0xFFD3(void){
uint8 runLength = 0x0B;
uint8 bitSize = 0x03;
uint16 result;
result = huffmanEncode(runLength, bitSize, acChrominanceTable);
TEST_ASSERT_EQUAL(0xFFD3, result);
}
void test_huffmanEncodeACL_given_run_and_bitsize_0xF0_should_get_0x7F9_chg_to_0xFF20(void){
uint8 runLength = 0x0F;
uint8 bitSize = 0x00;
uint16 result;
result = huffmanEncode(runLength, bitSize, acLuminanceTable);
TEST_ASSERT_EQUAL(0xFF20, result);
}
void test_huffmanEncodeACL_given_run_and_bitsize_0x79_should_get_0xFFB4(void){
uint8 runLength = 0x07;
uint8 bitSize = 0x09;
uint16 result;
result = huffmanEncode(runLength, bitSize, acLuminanceTable);
TEST_ASSERT_EQUAL(0xFFB4, result);
}
void test_huffmanEncodeDCC_given_run_and_bitsize_0x0A_should_get_0x3FE_chg_to_0xFF80(void){
uint8 runLength = 0x00;
uint8 bitSize = 0x0A;
uint16 result;
result = huffmanEncode(runLength, bitSize, dcChrominanceTable);
TEST_ASSERT_EQUAL(0xFF80, result);
}
void test_huffmanEncodeDCL_given_run_and_bitsize_0x02_should_get_0x02_chg_to_0x6000(void){
uint8 runLength = 0x00;
uint8 bitSize = 0x02;
uint16 result;
result = huffmanEncode(runLength, bitSize, dcLuminanceTable);
TEST_ASSERT_EQUAL(0x6000, result);
}
int main(int argc, char **argv) {
freopen("in.txt", "rb", stdin);
freopen("out.txt", "wb", stdout);
if (getchar() == 'c') { // Compress
passNewline(stdin);
huffmanEncode(stdin, stdout);
} else { // Decompress
passNewline(stdin);
huffmanDecode(stdin, stdout);
}
return 0;
}