コード例 #1
0
ファイル: moodbar.cpp プロジェクト: tmarques/waheela
QValueVector<QColor> amaroK::readMood(const QString path)
{
	debug() << "MakeMood: Reading mood file " << path << endl;
	QString filebase = path;
	QValueVector<QColor> theArray;
	filebase.truncate(filebase.findRev('.'));
	filebase += ".mood";
	QString dotfilebase = filebase, homefilebase = filebase;
	dotfilebase.insert(filebase.findRev('/') + 1, '.');
	homefilebase.replace('/', ',');
	homefilebase = ::locateLocal("data", "amarok/moods/" + homefilebase);
	QFile mood;
	if(QFile::exists(filebase)) mood.setName(filebase);
	if(QFile::exists(dotfilebase)) mood.setName(dotfilebase);
	if(QFile::exists(homefilebase)) mood.setName(homefilebase);
	if(mood.name() != "" && mood.open(IO_ReadOnly))
	{
		int r, g, b, s = mood.size() / 3;
		debug() << "ReadMood: File opened. Proceeding to read contents... s=" << s << endl;
		QMemArray<int> huedist(360);
		int total = 0, mx = 0;
		for(int i = 0; i < 360; i++) huedist[i] = 0;
		theArray.resize(s);
		for(int i = 0; i < s; i++)
		{
			r = mood.getch();
			g = mood.getch();
			b = mood.getch();
			theArray[i] = QColor(CLAMP(0, r, 255), CLAMP(0, g, 255), CLAMP(0, b, 255), QColor::Rgb);
			int h, s, v;
			theArray[i].getHsv(&h, &s, &v);
			if(h < 0) h = 0; else h = h % 360;
			huedist[h]++;
			if(mx < huedist[h]) mx = huedist[h];
		}
		debug() << "ReadMood: File read. Maximum hue bin size = " <<  mx << endl;
		if(AmarokConfig::makeMoodier())
		{
			debug() << "ReadMood: Making moodier!" << endl;
			int threshold, rangeStart = 0, rangeDelta = 359, sat = 100, val = 100;
			switch(AmarokConfig::alterMood())
			{
				// Angry
				case 1: threshold = s / 360 * 9; rangeStart = 45; rangeDelta = -45; sat = 200; val = 100; break;
				// Frozen
				case 2: threshold = s / 360 * 1; rangeStart = 140; rangeDelta = 160; sat = 50; val = 100; break;
				// Happy
				default: threshold = s / 360 * 2; rangeStart = 0; rangeDelta = 359; sat = 150; val = 250;
			}
			debug() << "ReadMood: Appling filter t=" << threshold << ", rS=" << rangeStart << ", rD=" << rangeDelta << ", s=" << sat << "%, v=" << val << "%" << endl;
			for(int i = 0; i < 360; i++) if(huedist[i] > threshold) total++;
			debug() << "ReadMood: Total=" << total << endl;
			if(total < 360 && total > 0)
			{
				for(int i = 0, n = 0; i < 360; i++)
					huedist[i] = ((huedist[i] > threshold ? n++ : n) * rangeDelta / total + rangeStart) % 360;
				for(uint i = 0; i < theArray.size(); i++)
				{	int h, s, v;
					theArray[i].getHsv(&h, &s, &v);
					if(h < 0) h = 0; else h = h % 360;
					if(h > 359) debug() << "ReadMood: Bad hue in array[" << i << "]: " << h << endl;
					theArray[i].setHsv(CLAMP(0, huedist[h], 359), CLAMP(0, s * sat / 100, 255), CLAMP(0, v * val / 100, 255));
				}
			}
		}
	}
	debug() << "ReadMood: All done." << endl;
	return theArray;
}
コード例 #2
0
//--------------------------------------------------------------------------
// Parse the marker stream until SOS or EOI is seen;
//--------------------------------------------------------------------------
int ExifData::ReadJpegSections (QFile & infile, ReadMode_t ReadMode)
{
    int a;

    a = infile.getch();

    if (a != 0xff || infile.getch() != M_SOI) {
        SectionsRead = 0;
        return false;
    }
    for(SectionsRead = 0; SectionsRead < MAX_SECTIONS-1; ) {
        int marker = 0;
        int got;
        unsigned int ll,lh;
        unsigned int itemlen;
        uchar * Data;

        for (a=0; a<7; a++) {
            marker = infile.getch();
            if (marker != 0xff) break;

            if (a >= 6) {

                kdDebug(7034) << "too many padding bytes\n";
                return false;

            }
        }

        if (marker == 0xff) {
            // 0xff is legal padding, but if we get that many, something's wrong.
            throw FatalError("too many padding bytes!");
        }

        Sections[SectionsRead].Type = marker;

        // Read the length of the section.
        lh = (uchar) infile.getch();
        ll = (uchar) infile.getch();

        itemlen = (lh << 8) | ll;

        if (itemlen < 2) {
            throw FatalError("invalid marker");
        }

        Sections[SectionsRead].Size = itemlen;

        Data = (uchar *)malloc(itemlen+1); // Add 1 to allow sticking a 0 at the end.
        Sections[SectionsRead].Data = Data;

        // Store first two pre-read bytes.
        Data[0] = (uchar)lh;
        Data[1] = (uchar)ll;

        got = infile.readBlock((char*)Data+2, itemlen-2); // Read the whole section.
        if (( unsigned ) got != itemlen-2) {
            throw FatalError("reading from file");
        }
        SectionsRead++;

        switch(marker) {

        case M_SOS:   // stop before hitting compressed data
            // If reading entire image is requested, read the rest of the data.
            if (ReadMode & READ_IMAGE) {
                unsigned long size;

                size = kMax( 0ul, infile.size()-infile.at() );
                Data = (uchar *)malloc(size);
                if (Data == NULL) {
                    throw FatalError("could not allocate data for entire image");
                }

                got = infile.readBlock((char*)Data,  size);
                if (( unsigned ) got != size) {
                    throw FatalError("could not read the rest of the image");
                }

                Sections[SectionsRead].Data = Data;
                Sections[SectionsRead].Size = size;
                Sections[SectionsRead].Type = PSEUDO_IMAGE_MARKER;
                SectionsRead ++;
                //HaveAll = 1;
            }
            return true;

        case M_EOI:   // in case it's a tables-only JPEG stream
            kdDebug(7034) << "No image in jpeg!\n";
            return false;

        case M_COM: // Comment section
            // pieczy 2002-02-12
            // now the User comment goes to UserComment
            // so we can store a Comment section also in READ_EXIF mode
            process_COM(Data, itemlen);
            break;

        case M_JFIF:
            // Regular jpegs always have this tag, exif images have the exif
            // marker instead, althogh ACDsee will write images with both markers.
            // this program will re-create this marker on absence of exif marker.
            // hence no need to keep the copy from the file.
            free(Sections[--SectionsRead].Data);
            break;

        case M_EXIF:
            // Seen files from some 'U-lead' software with Vivitar scanner
            // that uses marker 31 for non exif stuff.  Thus make sure
            // it says 'Exif' in the section before treating it as exif.
            if ((ReadMode & READ_EXIF) && memcmp(Data+2, "Exif", 4) == 0) {
                process_EXIF((uchar *)Data, itemlen); // FIXME: This call
                // requires Data to be array of at least 8 bytes. Code
                // above only checks for itemlen < 2.
            } else {
                // Discard this section.
                free(Sections[--SectionsRead].Data);
            }
            break;

        case M_SOF0:
        case M_SOF1:
        case M_SOF2:
        case M_SOF3:
        case M_SOF5:
        case M_SOF6:
        case M_SOF7:
        case M_SOF9:
        case M_SOF10:
        case M_SOF11:
        case M_SOF13:
        case M_SOF14:
        case M_SOF15:
            process_SOFn(Data, marker); //FIXME: This call requires Data to
            // be array of at least 8 bytes. Code above only checks for
            // itemlen < 2.
            break;
        default:
            break;
        }
    }
    return true;
}