void do_fft_test()
{
int i, scale;
unsigned diff;
short x[N], fx[N];
printf("Samples: \n");
for (i=0; i<N; i++) {
/*
x[i] = AMPLITUDE*cos(i*FREQUENCY*(2*3.1415926535)/N);
if (i & 0x01)
fx[(N+i)>>1] = x[i];
else
fx[i>>1] = x[i];
*/
#if DEBUG
show_amp(i,x[i], AMPLITUDE);
#endif
}
fix_fftr(fx, log2N, 0);
printf("----------------------------------------------\n");
printf("- Frequencies -\n");
printf("----------------------------------------------\n");
for (i=0; i<N/2; i++) show_amp(i, fx[i], AMPLITUDE);
#if SPECTRUM
for (i=0; i<N/2; i++) show_amp(i, fx[i], AMPLITUDE);
return;
#endif
printf("----------------------------------------------\n");
printf("- Scaled -\n");
printf("----------------------------------------------\n");
scale = fix_fftr(fx, log2N, 1);
//fprintf(stderr, "scale = %d\n", scale);
for (i=0,diff=0; i<N; i++) {
int sample;
if (i & 0x01)
sample = fx[(N+i)>>1] << scale;
else
sample = fx[i>>1] << scale;
#if DEBUG
show_amp(i, sample, AMPLITUDE);
#endif
diff += abs(x[i]-sample);
}
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
memset(names, 0x00, 100*32);
// load window size
QSettings settings;
restoreGeometry(settings.value("Windows/mainWindowGeometry").toByteArray());
restoreState(settings.value("Windows/mainWindowState").toByteArray());
// setting default values if there was none
if(!settings.contains("Settings/checkForUpdates"))
settings.setValue("Settings/checkForUpdates", true);
if(!settings.contains("Settings/connectOnStartup"))
settings.setValue("Settings/connectOnStartup", true);
if(!settings.contains("Settings/oneSetToSetThemAll"))
settings.setValue("Settings/oneSetToSetThemAll", false);
if(!settings.contains("Settings/keepWindowsOpen"))
settings.setValue("Settings/keepWindowsOpen", false);
if(!settings.contains("Settings/popupChangedWindows"))
settings.setValue("Settings/popupChangedWindows", true);
if(!settings.contains("Settings/defaultEffectValues"))
settings.setValue("Settings/defaultEffectValues", true);
// create child objects
amp_ops = new Mustang();
amp = new Amplifier(this);
effect1 = new Effect(this, 0);
effect2 = new Effect(this, 1);
effect3 = new Effect(this, 2);
effect4 = new Effect(this, 3);
about_window = new About(this);
save = new SaveOnAmp(this);
load = new LoadFromAmp(this);
seffects = new SaveEffects(this);
settings_win = new Settings(this);
saver = new SaveToFile(this);
quickpres = new QuickPresets(this);
connected = false;
// connect buttons to slots
//
connect(ui->Amplifier, SIGNAL(clicked()), amp, SLOT(show()));
connect(ui->EffectButton1, SIGNAL(clicked()), effect1, SLOT(show()));
connect(ui->EffectButton2, SIGNAL(clicked()), effect2, SLOT(show()));
connect(ui->EffectButton3, SIGNAL(clicked()), effect3, SLOT(show()));
connect(ui->EffectButton4, SIGNAL(clicked()), effect4, SLOT(show()));
connect(ui->actionConnect, SIGNAL(triggered()), this, SLOT(start_amp()));
connect(ui->actionDisconnect, SIGNAL(triggered()), this, SLOT(stop_amp()));
connect(ui->actionExit, SIGNAL(triggered()), this, SLOT(close()));
connect(ui->actionAbout, SIGNAL(triggered()), about_window, SLOT(open()));
connect(ui->actionSave_to_amplifier, SIGNAL(triggered()), save, SLOT(show()));
connect(ui->action_Load_from_amplifier, SIGNAL(triggered()), load, SLOT(show()));
connect(ui->actionSave_effects, SIGNAL(triggered()), seffects, SLOT(open()));
connect(ui->actionCheck_for_Updates, SIGNAL(triggered()), this, SLOT(check_for_updates()));
connect(ui->action_Options, SIGNAL(triggered()), settings_win, SLOT(show()));
connect(ui->actionL_oad_from_file, SIGNAL(triggered()), this, SLOT(loadfile()));
connect(ui->actionS_ave_to_file, SIGNAL(triggered()), saver, SLOT(show()));
connect(ui->action_Library_view, SIGNAL(triggered()), this, SLOT(show_library()));
connect(ui->action_Update_firmware, SIGNAL(triggered()), this, SLOT(update_firmware()));
connect(ui->action_Default_effects, SIGNAL(triggered()), this, SLOT(show_default_effects()));
connect(ui->action_Quick_presets, SIGNAL(triggered()), quickpres, SLOT(show()));
// shortcuts to activate effect windows
QShortcut *showfx1 = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_1), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *showfx2 = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_2), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *showfx3 = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_3), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *showfx4 = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_4), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *showamp = new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_5), this, 0, 0, Qt::ApplicationShortcut);
connect(showfx1, SIGNAL(activated()), this, SLOT(show_fx1()));
connect(showfx2, SIGNAL(activated()), this, SLOT(show_fx2()));
connect(showfx3, SIGNAL(activated()), this, SLOT(show_fx3()));
connect(showfx4, SIGNAL(activated()), this, SLOT(show_fx4()));
connect(showamp, SIGNAL(activated()), this, SLOT(show_amp()));
// shortcuts for quick loading presets
QShortcut *loadpres0 = new QShortcut(QKeySequence(Qt::Key_0), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres1 = new QShortcut(QKeySequence(Qt::Key_1), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres2 = new QShortcut(QKeySequence(Qt::Key_2), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres3 = new QShortcut(QKeySequence(Qt::Key_3), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres4 = new QShortcut(QKeySequence(Qt::Key_4), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres5 = new QShortcut(QKeySequence(Qt::Key_5), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres6 = new QShortcut(QKeySequence(Qt::Key_6), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres7 = new QShortcut(QKeySequence(Qt::Key_7), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres8 = new QShortcut(QKeySequence(Qt::Key_8), this, 0, 0, Qt::ApplicationShortcut);
QShortcut *loadpres9 = new QShortcut(QKeySequence(Qt::Key_9), this, 0, 0, Qt::ApplicationShortcut);
connect(loadpres0, SIGNAL(activated()), this, SLOT(load_presets0()));
connect(loadpres1, SIGNAL(activated()), this, SLOT(load_presets1()));
connect(loadpres2, SIGNAL(activated()), this, SLOT(load_presets2()));
connect(loadpres3, SIGNAL(activated()), this, SLOT(load_presets3()));
connect(loadpres4, SIGNAL(activated()), this, SLOT(load_presets4()));
connect(loadpres5, SIGNAL(activated()), this, SLOT(load_presets5()));
connect(loadpres6, SIGNAL(activated()), this, SLOT(load_presets6()));
connect(loadpres7, SIGNAL(activated()), this, SLOT(load_presets7()));
connect(loadpres8, SIGNAL(activated()), this, SLOT(load_presets8()));
connect(loadpres9, SIGNAL(activated()), this, SLOT(load_presets9()));
// shortcut to activate buttons
QShortcut *shortcut = new QShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_A), this);
connect(shortcut, SIGNAL(activated()), this, SLOT(enable_buttons()));
// connect the functions if needed
if(settings.value("Settings/checkForUpdates").toBool())
connect(this, SIGNAL(started()), this, SLOT(check_for_updates()));
if(settings.value("Settings/connectOnStartup").toBool())
connect(this, SIGNAL(started()), this, SLOT(start_amp()));
this->show();
this->repaint();
emit started();
}
