git.sesse.net Git - kdenlive/blob - src/vectorscope.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Simon Andreas Eugster (simon.eu@gmail.com)      *
   3  *   This file is part of kdenlive. See www.kdenlive.org.                  *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  ***************************************************************************/
  10
  11
  12 #include <QAction>
  13 #include <QColor>
  14 #include <QDebug>
  15 #include <QMouseEvent>
  16 #include <QMenu>
  17 #include <QPainter>
  18
  19 #include <QTime>
  20
  21 #include "colorplaneexport.h"
  22 #include "colortools.h"
  23 #include "renderer.h"
  24 #include "vectorscope.h"
  25 #include "vectorscopegenerator.h"
  26
  27 const float P75 = .75;
  28 const unsigned char DEFAULT_Y = 255;
  29
  30 const QPointF YUV_R(-.147,  .615);
  31 const QPointF YUV_G(-.289, -.515);
  32 const QPointF YUV_B(.437, -.100);
  33 const QPointF YUV_Cy(.147, -.615);
  34 const QPointF YUV_Mg(.289,  .515);
  35 const QPointF YUV_Yl(-.437,  .100);
  36
  37 const QPen penThick(QBrush(QColor(250,250,250)), 2, Qt::SolidLine);
  38 const QPen penThin(QBrush(QColor(250,250,250)), 1, Qt::SolidLine);
  39 const QPen penLight(QBrush(QColor(200,200,250,150)), 1, Qt::SolidLine);
  40 const QPen penDark(QBrush(QColor(0,0,20,250)), 1, Qt::SolidLine);
  41
  42
  43 Vectorscope::Vectorscope(Monitor *projMonitor, Monitor *clipMonitor, QWidget *parent) :
  44     AbstractScopeWidget(projMonitor, clipMonitor, parent),
  45     m_gain(1),
  46     m_circleEnabled(false)
  47 {
  48     ui = new Ui::Vectorscope_UI();
  49     ui->setupUi(this);
  50
  51     //TODO don't draw circle when mouseLeaved
  52
  53     m_colorTools = new ColorTools();
  54     m_colorPlaneExport = new ColorPlaneExport(this);
  55     m_vectorscopeGenerator = new VectorscopeGenerator();
  56
  57     ui->paintMode->addItem(i18n("Green 2"), QVariant(VectorscopeGenerator::PaintMode_Green2));
  58     ui->paintMode->addItem(i18n("Green"), QVariant(VectorscopeGenerator::PaintMode_Green));
  59     ui->paintMode->addItem(i18n("Black"), QVariant(VectorscopeGenerator::PaintMode_Black));
  60     ui->paintMode->addItem(i18n("Modified YUV (Chroma)"), QVariant(VectorscopeGenerator::PaintMode_Chroma));
  61     ui->paintMode->addItem(i18n("YUV"), QVariant(VectorscopeGenerator::PaintMode_YUV));
  62     ui->paintMode->addItem(i18n("Original Color"), QVariant(VectorscopeGenerator::PaintMode_Original));
  63
  64     ui->backgroundMode->addItem(i18n("None"), QVariant(BG_NONE));
  65     ui->backgroundMode->addItem(i18n("YUV"), QVariant(BG_YUV));
  66     ui->backgroundMode->addItem(i18n("Modified YUV (Chroma)"), QVariant(BG_CHROMA));
  67
  68     ui->sliderGain->setMinimum(0);
  69     ui->sliderGain->setMaximum(40);
  70
  71     bool b = true;
  72     b &= connect(ui->backgroundMode, SIGNAL(currentIndexChanged(int)), this, SLOT(slotBackgroundChanged()));
  73     b &= connect(ui->sliderGain, SIGNAL(valueChanged(int)), this, SLOT(slotGainChanged(int)));
  74     b &= connect(ui->paintMode, SIGNAL(currentIndexChanged(int)), this, SLOT(forceUpdateScope()));
  75     ui->sliderGain->setValue(0);
  76
  77
  78     ///// Build context menu /////
  79
  80     m_menu->addSeparator();
  81
  82     m_aExportBackground = new QAction(i18n("Export background"), this);
  83     m_menu->addAction(m_aExportBackground);
  84     b &= connect(m_aExportBackground, SIGNAL(triggered()), this, SLOT(slotExportBackground()));
  85
  86     m_a75PBox = new QAction(i18n("75% box"), this);
  87     m_a75PBox->setCheckable(true);
  88     m_a75PBox->setChecked(false);
  89     m_menu->addAction(m_a75PBox);
  90     b &= connect(m_a75PBox, SIGNAL(changed()), this, SLOT(forceUpdateBackground()));
  91
  92     m_aAxisEnabled = new QAction(i18n("Draw axis"), this);
  93     m_aAxisEnabled->setCheckable(true);
  94     m_aAxisEnabled->setChecked(false);
  95     m_menu->addAction(m_aAxisEnabled);
  96     b &= connect(m_aAxisEnabled, SIGNAL(changed()), this, SLOT(forceUpdateBackground()));
  97
  98     Q_ASSERT(b);
  99
 100
 101     this->setMouseTracking(true);
 102     slotGainChanged(ui->sliderGain->value());
 103 }
 104
 105 Vectorscope::~Vectorscope()
 106 {
 107     delete m_colorTools;
 108     delete m_colorPlaneExport;
 109     delete m_vectorscopeGenerator;
 110
 111     delete m_aExportBackground;
 112     delete m_aAxisEnabled;
 113     delete m_a75PBox;
 114 }
 115
 116 QString Vectorscope::widgetName() const { return QString("Vectorscope"); }
 117
 118 QRect Vectorscope::scopeRect()
 119 {
 120     // Distance from top/left/right
 121     int offset = 6;
 122
 123     // We want to paint below the controls area. The line is the lowest element.
 124     QPoint topleft(offset, ui->verticalSpacer->geometry().y()+offset);
 125     QPoint bottomright(ui->horizontalSpacer->geometry().right()-offset, this->size().height()-offset);
 126
 127     QRect scopeRect(topleft, bottomright);
 128
 129     // Circle Width: min of width and height
 130     cw = (scopeRect.height() < scopeRect.width()) ? scopeRect.height() : scopeRect.width();
 131     scopeRect.setWidth(cw);
 132     scopeRect.setHeight(cw);
 133
 134
 135     m_centerPoint = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), QPointF(0,0));
 136     pR75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_R);
 137     pG75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_G);
 138     pB75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_B);
 139     pCy75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_Cy);
 140     pMg75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_Mg);
 141     pYl75 = m_vectorscopeGenerator->mapToCircle(scopeRect.size(), P75*VectorscopeGenerator::scaling*YUV_Yl);
 142
 143     return scopeRect;
 144 }
 145
 146 bool Vectorscope::isHUDDependingOnInput() const { return false; }
 147 bool Vectorscope::isScopeDependingOnInput() const { return true; }
 148 bool Vectorscope::isBackgroundDependingOnInput() const { return false; }
 149
 150 QImage Vectorscope::renderHUD(uint)
 151 {
 152
 153     QImage hud;
 154
 155     if (m_circleEnabled) {
 156         // Mouse moved: Draw a circle over the scope
 157
 158         hud = QImage(m_scopeRect.size(), QImage::Format_ARGB32);
 159         hud.fill(qRgba(0, 0, 0, 0));
 160
 161         QPainter davinci(&hud);
 162         QPoint widgetCenterPoint = m_scopeRect.topLeft() + m_centerPoint;
 163
 164         int dx = -widgetCenterPoint.x()+m_mousePos.x();
 165         int dy =  widgetCenterPoint.y()-m_mousePos.y();
 166
 167         QPoint reference = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(1,0));
 168
 169         float r = sqrt(dx*dx + dy*dy);
 170         float percent = (float) 100*r/VectorscopeGenerator::scaling/m_gain/(reference.x() - widgetCenterPoint.x());
 171
 172         switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 173         case BG_NONE:
 174             davinci.setPen(penLight);
 175             break;
 176         default:
 177             davinci.setPen(penDark);
 178             break;
 179         }
 180         davinci.drawEllipse(m_centerPoint, (int)r, (int)r);
 181         davinci.setPen(penThin);
 182         davinci.drawText(QPoint(m_scopeRect.width()-40, m_scopeRect.height()), i18n("%1 \%", QString::number(percent, 'f', 0)));
 183
 184         float angle = copysign(acos(dx/r)*180/M_PI, dy);
 185         davinci.drawText(QPoint(10, m_scopeRect.height()), i18n("%1°", QString::number(angle, 'f', 1)));
 186
 187         m_circleEnabled = false;
 188     } else {
 189         hud = QImage(0, 0, QImage::Format_ARGB32);
 190     }
 191     emit signalHUDRenderingFinished(0, 1);
 192     return hud;
 193 }
 194
 195 QImage Vectorscope::renderScope(uint accelerationFactor)
 196 {
 197     QTime start = QTime::currentTime();
 198     QImage scope;
 199
 200     if (cw <= 0) {
 201         qDebug() << "Scope size not known yet. Aborting.";
 202     } else {
 203
 204         scope = m_vectorscopeGenerator->calculateVectorscope(m_scopeRect.size(),
 205                                                              m_activeRender->extractFrame(m_activeRender->seekFramePosition()),
 206                                                              m_gain, (VectorscopeGenerator::PaintMode) ui->paintMode->itemData(ui->paintMode->currentIndex()).toInt(),
 207                                                              m_aAxisEnabled->isChecked(), accelerationFactor);
 208
 209     }
 210
 211     unsigned int mseconds = start.msecsTo(QTime::currentTime());
 212 //    qDebug() << "Scope rendered in " << mseconds << " ms. Sending finished signal.";
 213 //    emit signalScopeCalculationFinished(mseconds, skipPixels);
 214     emit signalScopeRenderingFinished(mseconds, accelerationFactor);
 215 //    qDebug() << "xxScope: Signal finished sent.";
 216     return scope;
 217 }
 218
 219 QImage Vectorscope::renderBackground(uint)
 220 {
 221     QTime start = QTime::currentTime();
 222     start.start();
 223
 224     QImage bg;
 225     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 226     case BG_YUV:
 227         qDebug() << "YUV background.";
 228         bg = m_colorTools->yuvColorWheel(m_scopeRect.size(), (unsigned char) 128, 1/VectorscopeGenerator::scaling, false, true);
 229         break;
 230     case BG_CHROMA:
 231         bg = m_colorTools->yuvColorWheel(m_scopeRect.size(), (unsigned char) 255, 1/VectorscopeGenerator::scaling, true, true);
 232         break;
 233     default:
 234         qDebug() << "No background.";
 235         bg = QImage(cw, cw, QImage::Format_ARGB32);
 236         bg.fill(qRgba(0,0,0,0));
 237         break;
 238     }
 239
 240
 241     // Draw the vectorscope circle
 242     QPainter davinci(&bg);
 243     QPoint vinciPoint;
 244
 245
 246     davinci.setRenderHint(QPainter::Antialiasing, true);
 247
 248     davinci.setPen(penThick);
 249     davinci.drawEllipse(0, 0, cw, cw);
 250
 251     // Draw RGB/CMY points with 100% chroma
 252     vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_R);
 253     davinci.drawEllipse(vinciPoint, 4,4);
 254     davinci.drawText(vinciPoint-QPoint(20, -10), "R");
 255
 256     vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_G);
 257     davinci.drawEllipse(vinciPoint, 4,4);
 258     davinci.drawText(vinciPoint-QPoint(20, 0), "G");
 259
 260     vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_B);
 261     davinci.drawEllipse(vinciPoint, 4,4);
 262     davinci.drawText(vinciPoint+QPoint(15, 10), "B");
 263
 264     vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_Cy);
 265     davinci.drawEllipse(vinciPoint, 4,4);
 266     davinci.drawText(vinciPoint+QPoint(15, -5), "Cy");
 267
 268     vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_Mg);
 269     davinci.drawEllipse(vinciPoint, 4,4);
 270     davinci.drawText(vinciPoint+QPoint(15, 10), "Mg");
 271
 272     vinciPoint = m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), VectorscopeGenerator::scaling*YUV_Yl);
 273     davinci.drawEllipse(vinciPoint, 4,4);
 274     davinci.drawText(vinciPoint-QPoint(25, 0), "Yl");
 275
 276     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 277     case BG_NONE:
 278         davinci.setPen(penLight);
 279         break;
 280     default:
 281         davinci.setPen(penDark);
 282         break;
 283     }
 284
 285     // Draw axis
 286     if (m_aAxisEnabled->isChecked()) {
 287         davinci.drawLine(m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(0,-.9)), m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(0,.9)));
 288         davinci.drawLine(m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(-.9,0)), m_vectorscopeGenerator->mapToCircle(m_scopeRect.size(), QPointF(.9,0)));
 289     }
 290
 291     // Draw center point
 292     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 293     case BG_CHROMA:
 294         davinci.setPen(penDark);
 295         break;
 296     default:
 297         davinci.setPen(penThin);
 298         break;
 299     }
 300     davinci.drawEllipse(m_centerPoint, 5,5);
 301
 302
 303     // Draw 75% box
 304     if (m_a75PBox->isChecked()) {
 305         davinci.drawLine(pR75, pYl75);
 306         davinci.drawLine(pYl75, pG75);
 307         davinci.drawLine(pG75, pCy75);
 308         davinci.drawLine(pCy75, pB75);
 309         davinci.drawLine(pB75, pMg75);
 310         davinci.drawLine(pMg75, pR75);
 311     }
 312
 313     // Draw RGB/CMY points with 75% chroma (for NTSC)
 314     davinci.setPen(penThin);
 315     davinci.drawEllipse(pR75, 3,3);
 316     davinci.drawEllipse(pG75, 3,3);
 317     davinci.drawEllipse(pB75, 3,3);
 318     davinci.drawEllipse(pCy75, 3,3);
 319     davinci.drawEllipse(pMg75, 3,3);
 320     davinci.drawEllipse(pYl75, 3,3);
 321
 322     // Draw realtime factor (number of skipped pixels)
 323     if (m_aRealtime->isChecked()) {
 324         davinci.setPen(penThin);
 325         davinci.drawText(QPoint(m_scopeRect.width()-40, m_scopeRect.height()-15), QVariant(m_accelFactorScope).toString().append("x"));
 326     }
 327
 328     emit signalBackgroundRenderingFinished(start.elapsed(), 1);
 329     return bg;
 330 }
 331
 332
 333
 334
 335 ///// Slots /////
 336
 337 void Vectorscope::slotGainChanged(int newval)
 338 {
 339     m_gain = 1 + (float)newval/10;
 340     ui->lblGain->setText(QString::number(m_gain, 'f', 1) + "x");
 341     forceUpdateScope();
 342 }
 343
 344 void Vectorscope::slotExportBackground()
 345 {
 346     qDebug() << "Exporting background";
 347     m_colorPlaneExport->show();
 348
 349 }
 350
 351 void Vectorscope::slotBackgroundChanged()
 352 {
 353     // Background changed, switch to a suitable color mode now
 354     int index;
 355     switch (ui->backgroundMode->itemData(ui->backgroundMode->currentIndex()).toInt()) {
 356     case BG_YUV:
 357         index = ui->paintMode->findData(QVariant(VectorscopeGenerator::PaintMode_Black));
 358         if (index >= 0) {
 359             ui->paintMode->setCurrentIndex(index);
 360         }
 361         break;
 362
 363     case BG_NONE:
 364         if (ui->paintMode->itemData(ui->paintMode->currentIndex()).toInt() == VectorscopeGenerator::PaintMode_Black) {
 365             index = ui->paintMode->findData(QVariant(VectorscopeGenerator::PaintMode_Green2));
 366             ui->paintMode->setCurrentIndex(index);
 367         }
 368         break;
 369     }
 370     forceUpdateBackground();
 371 }
 372
 373
 374
 375 ///// Events /////
 376
 377 void Vectorscope::mouseMoveEvent(QMouseEvent *event)
 378 {
 379     // Draw a circle around the center,
 380     // showing percentage number of the radius length
 381
 382     m_circleEnabled = true;
 383     m_mousePos = event->pos();
 384     forceUpdateHUD();
 385 }
 386
 387 void Vectorscope::leaveEvent(QEvent *event)
 388 {
 389     // Repaint the HUD without the circle
 390
 391     m_circleEnabled = false;
 392     QWidget::leaveEvent(event);
 393     forceUpdateHUD();
 394 }