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Diffstat (limited to 'src/plugins/mediaservices/qt7/qt7movievideowidget.mm')
| -rw-r--r-- | src/plugins/mediaservices/qt7/qt7movievideowidget.mm | 417 |
1 files changed, 417 insertions, 0 deletions
diff --git a/src/plugins/mediaservices/qt7/qt7movievideowidget.mm b/src/plugins/mediaservices/qt7/qt7movievideowidget.mm new file mode 100644 index 0000000..6e74fcd --- /dev/null +++ b/src/plugins/mediaservices/qt7/qt7movievideowidget.mm @@ -0,0 +1,417 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#import <QTKit/QTKit.h> + +#include "qt7backend.h" + +#include "qt7playercontrol.h" +#include "qt7movievideowidget.h" +#include "qt7playersession.h" +#include "qcvdisplaylink.h" +#include <QtCore/qdebug.h> +#include <QtCore/qcoreapplication.h> + +#include <QGLWidget> + +#import <QuartzCore/QuartzCore.h> + +#include "math.h" + +QT_BEGIN_NAMESPACE + +class GLVideoWidget : public QGLWidget +{ +public: + + GLVideoWidget(QWidget *parent, const QGLFormat &format) + : QGLWidget(format, parent), + m_texRef(0), + m_nativeSize(640,480), + m_aspectRatioMode(QVideoWidget::KeepAspectRatio) + { + setAutoFillBackground(false); + } + + void initializeGL() + { + glClearColor(0.0f, 0.0f, 0.0f, 1.0f); + } + + void resizeGL(int w, int h) + { + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glViewport(0, 0, GLsizei(w), GLsizei(h)); + gluOrtho2D(0, GLsizei(w), 0, GLsizei(h)); + updateGL(); + } + + void paintGL() + { + glClear(GL_COLOR_BUFFER_BIT); + if (!m_texRef) + return; + + glPushMatrix(); + glDisable(GL_CULL_FACE); + GLenum target = CVOpenGLTextureGetTarget(m_texRef); + glEnable(target); + + glBindTexture(target, CVOpenGLTextureGetName(m_texRef)); + glTexParameterf(target, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(target, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + GLfloat lowerLeft[2], lowerRight[2], upperRight[2], upperLeft[2]; + CVOpenGLTextureGetCleanTexCoords(m_texRef, lowerLeft, lowerRight, upperRight, upperLeft); + + glBegin(GL_QUADS); + QRect rect = displayRect(); + glTexCoord2f(lowerLeft[0], lowerLeft[1]); + glVertex2i(rect.topLeft().x(), rect.topLeft().y()); + glTexCoord2f(lowerRight[0], lowerRight[1]); + glVertex2i(rect.topRight().x() + 1, rect.topRight().y()); + glTexCoord2f(upperRight[0], upperRight[1]); + glVertex2i(rect.bottomRight().x() + 1, rect.bottomRight().y() + 1); + glTexCoord2f(upperLeft[0], upperLeft[1]); + glVertex2i(rect.bottomLeft().x(), rect.bottomLeft().y() + 1); + glEnd(); + glPopMatrix(); + } + + void setCVTexture(CVOpenGLTextureRef texRef) + { + if (m_texRef) + CVOpenGLTextureRelease(m_texRef); + + m_texRef = texRef; + + if (m_texRef) + CVOpenGLTextureRetain(m_texRef); + + if (isVisible()) { + makeCurrent(); + paintGL(); + swapBuffers(); + } + } + + QSize sizeHint() const + { + return m_nativeSize; + } + + void setNativeSize(const QSize &size) + { + m_nativeSize = size; + } + + void setAspectRatioMode(QVideoWidget::AspectRatioMode mode) + { + if (m_aspectRatioMode != mode) { + m_aspectRatioMode = mode; + update(); + } + } + +private: + QRect displayRect() const + { + QRect displayRect = rect(); + + if (m_aspectRatioMode == QVideoWidget::KeepAspectRatio) { + QSize size = m_nativeSize; + size.scale(displayRect.size(), Qt::KeepAspectRatio); + + displayRect = QRect(QPoint(0, 0), size); + displayRect.moveCenter(rect().center()); + } + return displayRect; + } + + CVOpenGLTextureRef m_texRef; + QSize m_nativeSize; + QVideoWidget::AspectRatioMode m_aspectRatioMode; +}; + +QT7MovieVideoWidget::QT7MovieVideoWidget(QObject *parent) + :QT7VideoWidgetControl(parent), + m_movie(0), + m_videoWidget(0), + m_fullscreen(false), + m_aspectRatioMode(QVideoWidget::KeepAspectRatio), + m_brightness(0), + m_contrast(0), + m_hue(0), + m_saturation(0) +{ + qDebug() << "QT7MovieVideoWidget"; + + QGLFormat format = QGLFormat::defaultFormat(); + format.setSwapInterval(1); // Vertical sync (avoid tearing) + m_videoWidget = new GLVideoWidget(0, format); + + m_displayLink = new QCvDisplayLink(this); + + connect(m_displayLink, SIGNAL(tick(CVTimeStamp)), SLOT(updateVideoFrame(CVTimeStamp))); + + if (!createVisualContext()) { + qWarning() << "QT7MovieVideoWidget: failed to create visual context"; + } +} + + +bool QT7MovieVideoWidget::createVisualContext() +{ +#ifdef QUICKTIME_C_API_AVAILABLE + m_videoWidget->makeCurrent(); + + AutoReleasePool pool; + CGLContextObj cglContext = CGLGetCurrentContext(); + NSOpenGLPixelFormat *nsglPixelFormat = [NSOpenGLView defaultPixelFormat]; + CGLPixelFormatObj cglPixelFormat = static_cast<CGLPixelFormatObj>([nsglPixelFormat CGLPixelFormatObj]); + + CFTypeRef keys[] = { kQTVisualContextWorkingColorSpaceKey }; + CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); + CFDictionaryRef textureContextAttributes = CFDictionaryCreate(kCFAllocatorDefault, + (const void **)keys, + (const void **)&colorSpace, 1, + &kCFTypeDictionaryKeyCallBacks, + &kCFTypeDictionaryValueCallBacks); + + OSStatus err = QTOpenGLTextureContextCreate(kCFAllocatorDefault, + cglContext, + cglPixelFormat, + textureContextAttributes, + &m_visualContext); + if (err != noErr) + qWarning() << "Could not create visual context (OpenGL)"; + + + return (err == noErr); +#endif // QUICKTIME_C_API_AVAILABLE + + return false; +} + +QT7MovieVideoWidget::~QT7MovieVideoWidget() +{ + m_displayLink->stop(); + [(QTMovie*)m_movie release]; + delete m_videoWidget; +} + +QWidget *QT7MovieVideoWidget::videoWidget() +{ + return m_videoWidget; +} + +void QT7MovieVideoWidget::setupVideoOutput() +{ + AutoReleasePool pool; + + qDebug() << "QT7MovieVideoWidget::setupVideoOutput" << m_movie; + + if (m_movie == 0) { + m_displayLink->stop(); + return; + } + + NSSize size = [[(QTMovie*)m_movie attributeForKey:@"QTMovieNaturalSizeAttribute"] sizeValue]; + m_nativeSize = QSize(size.width, size.height); + m_videoWidget->setNativeSize(m_nativeSize); + +#ifdef QUICKTIME_C_API_AVAILABLE + // targets a Movie to render into a visual context + SetMovieVisualContext([(QTMovie*)m_movie quickTimeMovie], m_visualContext); +#endif + + m_displayLink->start(); +} + +void QT7MovieVideoWidget::setEnabled(bool) +{ +} + +void QT7MovieVideoWidget::setMovie(void *movie) +{ + if (m_movie == movie) + return; + + if (m_movie) { +#ifdef QUICKTIME_C_API_AVAILABLE + SetMovieVisualContext([(QTMovie*)m_movie quickTimeMovie], nil); +#endif + [(QTMovie*)m_movie release]; + } + + m_movie = movie; + [(QTMovie*)m_movie retain]; + + setupVideoOutput(); +} + +void QT7MovieVideoWidget::updateNaturalSize(const QSize &newSize) +{ + if (m_nativeSize != newSize) { + m_nativeSize = newSize; + setupVideoOutput(); + } +} + +bool QT7MovieVideoWidget::isFullScreen() const +{ + return m_fullscreen; +} + +void QT7MovieVideoWidget::setFullScreen(bool fullScreen) +{ + m_fullscreen = fullScreen; +} + +QSize QT7MovieVideoWidget::nativeSize() const +{ + return m_nativeSize; +} + +QVideoWidget::AspectRatioMode QT7MovieVideoWidget::aspectRatioMode() const +{ + return m_aspectRatioMode; +} + +void QT7MovieVideoWidget::setAspectRatioMode(QVideoWidget::AspectRatioMode mode) +{ + m_aspectRatioMode = mode; + m_videoWidget->setAspectRatioMode(mode); +} + +int QT7MovieVideoWidget::brightness() const +{ + return m_brightness; +} + +void QT7MovieVideoWidget::setBrightness(int brightness) +{ + m_brightness = brightness; + updateColors(); +} + +int QT7MovieVideoWidget::contrast() const +{ + return m_contrast; +} + +void QT7MovieVideoWidget::setContrast(int contrast) +{ + m_contrast = contrast; + updateColors(); +} + +int QT7MovieVideoWidget::hue() const +{ + return m_hue; +} + +void QT7MovieVideoWidget::setHue(int hue) +{ + m_hue = hue; + updateColors(); +} + +int QT7MovieVideoWidget::saturation() const +{ + return m_saturation; +} + +void QT7MovieVideoWidget::setSaturation(int saturation) +{ + m_saturation = saturation; + updateColors(); +} + +void QT7MovieVideoWidget::updateColors() +{ +#ifdef QUICKTIME_C_API_AVAILABLE + if (m_movie) { + QTMovie *movie = (QTMovie*)m_movie; + + Float32 value; + value = m_brightness/100.0; + SetMovieVisualBrightness([movie quickTimeMovie], value, 0); + value = pow(2, m_contrast/50.0); + SetMovieVisualContrast([movie quickTimeMovie], value, 0); + value = m_hue/100.0; + SetMovieVisualHue([movie quickTimeMovie], value, 0); + value = 1.0+m_saturation/100.0; + SetMovieVisualSaturation([movie quickTimeMovie], value, 0); + } +#endif +} + +void QT7MovieVideoWidget::updateVideoFrame(const CVTimeStamp &ts) +{ +#ifdef QUICKTIME_C_API_AVAILABLE + AutoReleasePool pool; + // check for new frame + if (m_visualContext && QTVisualContextIsNewImageAvailable(m_visualContext, &ts)) { + CVOpenGLTextureRef currentFrame = NULL; + + // get a "frame" (image buffer) from the Visual Context, indexed by the provided time + OSStatus status = QTVisualContextCopyImageForTime(m_visualContext, NULL, &ts, ¤tFrame); + + // the above call may produce a null frame so check for this first + // if we have a frame, then draw it + if (status == noErr && currentFrame) { + //qDebug() << "render video frame"; + m_videoWidget->setCVTexture(currentFrame); + CVOpenGLTextureRelease(currentFrame); + } + QTVisualContextTask(m_visualContext); + } +#else + Q_UNUSED(ts); +#endif +} + +#include "moc_qt7movievideowidget.cpp" + +QT_END_NAMESPACE |