bool MIDINote::updateFromMIDIMessage(uint8_t* msg, int msgLength)
{
uint8_t channelMessage = msg[0] & 0xF0;
if ( channelMessage == 0x80 ) {
this->setKeydown(false);
envelopePhase = RELEASE_PHASE;
envelopePhasePosition = 0;
return true;
}
else if ( channelMessage == 0x90 ) {
pitch = msg[1];
channel = channelMessage & 0x0F;
velocity = msg[2];
envelopePhase = 0;
frequency = computeFrequency();
generatorPhase = 0;
envelopePhasePosition = 0;
envelopeFactor = 0;
active = true;
if ( velocity == 0 ) {
this->setKeydown(false);
envelopePhase = RELEASE_PHASE;
}
else {
setKeydown(true);
}
return true;
}
return false;
}
void RollingFileAppender::setDatePattern(const QString& datePattern)
{
setDatePatternString(datePattern);
computeFrequency();
computeRollOverTime();
}
void DailyRollingFileAppender::activateOptions()
{
QMutexLocker locker(&mObjectGuard);
computeFrequency();
if (!mActiveDatePattern.isEmpty())
{
rollOver();
FileAppender::activateOptions();
}
}
int main(int argc, char **argv) {
if (argc < 2) {
printf("\nInput file needed. Exiting...\n");
return 0;
}
FILE *input = fopen(argv[1], "r");
char pt, c;
int i = 0, numChars, shifts[3] = {0};
float charCount[26] = {0};
table *alphabet = NULL;
alphabet = readInFile(alphabet, "letterFrequencies.txt");
numChars = countFrequency(input, charCount);
computeFrequency(numChars, charCount);
printf("\nFREQUENCY ANALYSIS ATTACK ON THE SHIFT CIPHER"
"\n--------------------------------------");
table *inputFrequencies = NULL;
int a = 0;
while (a < 26) {
inputFrequencies = loadTable(inputFrequencies, a+97, charCount[a], 0);
a++;
}
pickTopShifts(inputFrequencies, shifts);
table *temp = inputFrequencies;
printf("\nTESTING TOP 3 SHIFT POSSIBILITIES\n");
for (i = 0; i < 3; i++) {
rewind(input);
printf("\nDecryption %d/3; Shift :%d\t", i+1, shifts[i]-4);
while((c = getc(input)) != EOF){
pt = decrypt(c, shifts[i]-4);
putchar(pt);
}
}
printf("\n");
fclose(input);
return 0;
}
