diff -r cfcbf08528c4 -r 2b40d63a9c3d qtmobility/plugins/multimedia/qt7/qt7movierenderer.mm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/plugins/multimedia/qt7/qt7movierenderer.mm	Fri Apr 16 15:51:22 2010 +0300
@@ -0,0 +1,439 @@
+/****************************************************************************
+**
+** 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 Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 "qt7movierenderer.h"
+#include "qt7playersession.h"
+#include "qcvdisplaylink.h"
+#include <QtCore/qdebug.h>
+#include <QtCore/qcoreapplication.h>
+
+#include <QGLWidget>
+
+#include <QtMultimedia/qabstractvideobuffer.h>
+#include <QtMultimedia/qabstractvideosurface.h>
+#include <QtMultimedia/qvideosurfaceformat.h>
+
+QTM_USE_NAMESPACE
+
+class CVGLTextureVideoBuffer : public QAbstractVideoBuffer
+{
+public:
+    CVGLTextureVideoBuffer(CVOpenGLTextureRef buffer)
+        : QAbstractVideoBuffer(NoHandle)
+        , m_buffer(buffer)
+        , m_mode(NotMapped)
+    {
+        CVOpenGLTextureRetain(m_buffer);
+    }
+
+    virtual ~CVGLTextureVideoBuffer()
+    {
+        CVOpenGLTextureRelease(m_buffer);
+    }
+
+    QVariant handle() const
+    {
+        GLuint id = CVOpenGLTextureGetName(m_buffer);
+        return QVariant(int(id));
+    }
+
+    HandleType handleType() const
+    {
+        return GLTextureHandle;
+    }
+
+    MapMode mapMode() const { return m_mode; }
+
+    uchar *map(MapMode mode, int *numBytes, int *bytesPerLine)
+    {
+        if (numBytes)
+            *numBytes = 0;
+
+        if (bytesPerLine)
+            *bytesPerLine = 0;
+
+        m_mode = mode;
+        return 0;
+    }
+
+    void unmap() { m_mode = NotMapped; }
+
+private:
+    CVOpenGLTextureRef m_buffer;
+    MapMode m_mode;
+};
+
+
+class CVPixelBufferVideoBuffer : public QAbstractVideoBuffer
+{
+public:
+    CVPixelBufferVideoBuffer(CVPixelBufferRef buffer)
+        : QAbstractVideoBuffer(NoHandle)
+        , m_buffer(buffer)
+        , m_mode(NotMapped)
+    {
+        CVPixelBufferRetain(m_buffer);
+    }
+
+    virtual ~CVPixelBufferVideoBuffer()
+    {
+        CVPixelBufferRelease(m_buffer);
+    }
+
+    MapMode mapMode() const { return m_mode; }
+
+    uchar *map(MapMode mode, int *numBytes, int *bytesPerLine)
+    {
+        if (mode != NotMapped && m_mode == NotMapped) {
+            CVPixelBufferLockBaseAddress(m_buffer, 0);
+
+            if (numBytes)
+                *numBytes = CVPixelBufferGetDataSize(m_buffer);
+
+            if (bytesPerLine)
+                *bytesPerLine = CVPixelBufferGetBytesPerRow(m_buffer);
+
+            m_mode = mode;
+
+            return (uchar*)CVPixelBufferGetBaseAddress(m_buffer);
+        } else {
+            return 0;
+        }
+    }
+
+    void unmap()
+    {
+        if (m_mode != NotMapped) {
+            m_mode = NotMapped;
+            CVPixelBufferUnlockBaseAddress(m_buffer, 0);
+        }
+    }
+
+private:
+    CVPixelBufferRef m_buffer;
+    MapMode m_mode;
+};
+
+
+
+QT7MovieRenderer::QT7MovieRenderer(QObject *parent)
+   :QT7VideoRendererControl(parent),
+    m_movie(0),
+#ifdef QUICKTIME_C_API_AVAILABLE
+    m_visualContext(0),
+    m_usingGLContext(false),
+    m_currentGLContext(0),
+#endif
+    m_surface(0)
+{
+    qDebug() << "QT7MovieRenderer";
+
+    m_displayLink = new QCvDisplayLink(this);
+    connect(m_displayLink, SIGNAL(tick(CVTimeStamp)), SLOT(updateVideoFrame(CVTimeStamp)));
+}
+
+
+bool QT7MovieRenderer::createGLVisualContext()
+{
+#ifdef QUICKTIME_C_API_AVAILABLE
+    AutoReleasePool pool;
+    CGLContextObj cglContext = CGLGetCurrentContext();
+    NSOpenGLPixelFormat *nsglPixelFormat = [NSOpenGLView defaultPixelFormat];
+    CGLPixelFormatObj cglPixelFormat = static_cast<CGLPixelFormatObj>([nsglPixelFormat CGLPixelFormatObj]);
+
+    OSStatus err = QTOpenGLTextureContextCreate(kCFAllocatorDefault, cglContext,
+                                                cglPixelFormat, NULL, &m_visualContext);
+    if (err != noErr)
+        qWarning() << "Could not create visual context (OpenGL)";
+
+    return (err == noErr);
+#endif // QUICKTIME_C_API_AVAILABLE
+
+    return false;
+}
+
+#ifdef QUICKTIME_C_API_AVAILABLE
+static bool DictionarySetValue(CFMutableDictionaryRef dict, CFStringRef key, SInt32 value)
+{
+    CFNumberRef  number    = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &value);
+
+    if (number) {
+        CFDictionarySetValue( dict, key, number );
+        CFRelease( number );
+        return true;
+    }
+    return false;
+}
+#endif // QUICKTIME_C_API_AVAILABLE
+
+bool QT7MovieRenderer::createPixelBufferVisualContext()
+{
+#ifdef QUICKTIME_C_API_AVAILABLE
+    if (m_visualContext) {
+        QTVisualContextRelease(m_visualContext);
+        m_visualContext = 0;
+    }
+
+    m_pixelBufferContextGeometry = m_nativeSize;
+
+    CFMutableDictionaryRef  pixelBufferOptions = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
+                                                                           &kCFTypeDictionaryKeyCallBacks,
+                                                                           &kCFTypeDictionaryValueCallBacks);
+    //DictionarySetValue(pixelBufferOptions, kCVPixelBufferPixelFormatTypeKey, k32ARGBPixelFormat );
+    DictionarySetValue(pixelBufferOptions, kCVPixelBufferPixelFormatTypeKey, k32BGRAPixelFormat );
+    DictionarySetValue(pixelBufferOptions, kCVPixelBufferWidthKey, m_nativeSize.width() );
+    DictionarySetValue(pixelBufferOptions, kCVPixelBufferHeightKey, m_nativeSize.height() );
+    DictionarySetValue(pixelBufferOptions, kCVPixelBufferBytesPerRowAlignmentKey, 16);
+    //CFDictionarySetValue(pixelBufferOptions, kCVPixelBufferOpenGLCompatibilityKey, kCFBooleanTrue);
+
+    CFMutableDictionaryRef  visualContextOptions = CFDictionaryCreateMutable(kCFAllocatorDefault, 0,
+                                                                             &kCFTypeDictionaryKeyCallBacks,
+                                                                             &kCFTypeDictionaryValueCallBacks);
+    CFDictionarySetValue(visualContextOptions, kQTVisualContextPixelBufferAttributesKey, pixelBufferOptions);
+    CFDictionarySetValue(visualContextOptions, kQTVisualContextWorkingColorSpaceKey, CGColorSpaceCreateDeviceRGB());
+
+    OSStatus err = QTPixelBufferContextCreate(kCFAllocatorDefault,
+                                               visualContextOptions,
+                                               &m_visualContext);
+    CFRelease(pixelBufferOptions);
+    CFRelease(visualContextOptions);
+
+    if (err != noErr) {
+        qWarning() << "Could not create visual context (PixelBuffer)";
+        return false;
+    }
+
+    return true;
+#endif // QUICKTIME_C_API_AVAILABLE
+
+    return false;
+}
+
+
+QT7MovieRenderer::~QT7MovieRenderer()
+{
+    m_displayLink->stop();
+}
+
+void QT7MovieRenderer::setupVideoOutput()
+{
+    AutoReleasePool pool;
+
+    qDebug() << "QT7MovieRenderer::setupVideoOutput" << m_movie;
+
+    if (m_movie == 0 || m_surface == 0) {
+        m_displayLink->stop();
+        return;
+    }
+
+    NSSize size = [[(QTMovie*)m_movie attributeForKey:@"QTMovieCurrentSizeAttribute"] sizeValue];
+    m_nativeSize = QSize(size.width, size.height);
+
+#ifdef QUICKTIME_C_API_AVAILABLE
+    bool usedGLContext = m_usingGLContext;
+
+    if (!m_nativeSize.isEmpty()) {
+
+        bool glSupported = !m_surface->supportedPixelFormats(QAbstractVideoBuffer::GLTextureHandle).isEmpty();
+
+        //Try rendering using opengl textures first:
+        if (glSupported) {
+            QVideoSurfaceFormat format(m_nativeSize, QVideoFrame::Format_RGB32, QAbstractVideoBuffer::GLTextureHandle);
+
+            if (m_surface->isActive())
+                m_surface->stop();
+
+            qDebug() << "Starting the surface with format" << format;
+            if (!m_surface->start(format)) {
+                qDebug() << "failed to start video surface" << m_surface->error();
+                glSupported = false;
+            } else {
+                m_usingGLContext = true;
+            }
+
+        }
+
+        if (!glSupported) {
+            m_usingGLContext = false;
+            QVideoSurfaceFormat format(m_nativeSize, QVideoFrame::Format_RGB32);
+
+            if (m_surface->isActive() && m_surface->surfaceFormat() != format) {
+                qDebug() << "Surface format was changed, stop the surface.";
+                m_surface->stop();
+            }
+
+            if (!m_surface->isActive()) {
+                qDebug() << "Starting the surface with format" << format;
+                if (!m_surface->start(format))
+                    qDebug() << "failed to start video surface" << m_surface->error();
+            }
+        }
+    }
+
+
+    if (m_visualContext) {
+        //check if the visual context still can be reused
+        if (usedGLContext != m_usingGLContext ||
+            (m_usingGLContext && (m_currentGLContext != QGLContext::currentContext())) ||
+            (!m_usingGLContext && (m_pixelBufferContextGeometry != m_nativeSize))) {
+            QTVisualContextRelease(m_visualContext);
+            m_visualContext = 0;
+        }
+    }
+
+    if (!m_visualContext) {
+        if (m_usingGLContext) {
+            qDebug() << "Building OpenGL visual context";
+            m_currentGLContext = QGLContext::currentContext();
+            if (!createGLVisualContext()) {
+                qWarning() << "QT7MovieRenderer: failed to create visual context";
+                return;
+            }
+        } else {
+            qDebug() << "Building Pixel Buffer visual context";
+            if (!createPixelBufferVisualContext()) {
+                qWarning() << "QT7MovieRenderer: failed to create visual context";
+                return;
+            }
+        }
+    }
+
+    // targets a Movie to render into a visual context
+    SetMovieVisualContext([(QTMovie*)m_movie quickTimeMovie], m_visualContext);
+
+
+#endif
+
+    m_displayLink->start();
+}
+
+void QT7MovieRenderer::setEnabled(bool)
+{
+}
+
+void QT7MovieRenderer::setMovie(void *movie)
+{
+    qDebug() << "QT7MovieRenderer::setMovie" << movie;
+
+    if (m_movie == movie)
+        return;
+
+    QMutexLocker locker(&m_mutex);
+
+#ifdef QUICKTIME_C_API_AVAILABLE
+    //ensure the old movie doesn't hold the visual context, otherwise it can't be reused
+    if (m_movie && m_visualContext)
+        SetMovieVisualContext([(QTMovie*)m_movie quickTimeMovie], 0);
+#endif
+
+    m_movie = movie;
+    setupVideoOutput();
+}
+
+QAbstractVideoSurface *QT7MovieRenderer::surface() const
+{
+    return m_surface;
+}
+
+void QT7MovieRenderer::setSurface(QAbstractVideoSurface *surface)
+{
+    qDebug() << "Set video surface" << surface;
+
+    if (surface == m_surface)
+        return;
+
+    QMutexLocker locker(&m_mutex);
+
+    if (m_surface && m_surface->isActive())
+        m_surface->stop();
+
+    m_surface = surface;
+    setupVideoOutput();
+}
+
+
+QSize QT7MovieRenderer::nativeSize() const
+{
+    return m_nativeSize;
+}
+
+void QT7MovieRenderer::updateVideoFrame(const CVTimeStamp &ts)
+{
+#ifdef QUICKTIME_C_API_AVAILABLE
+
+    QMutexLocker locker(&m_mutex);
+
+    if (m_surface && m_surface->isActive() &&
+        m_visualContext && QTVisualContextIsNewImageAvailable(m_visualContext, &ts)) {
+
+        CVImageBufferRef imageBuffer = NULL;
+
+        OSStatus status = QTVisualContextCopyImageForTime(m_visualContext, NULL, &ts, &imageBuffer);
+
+        if (status == noErr && imageBuffer) {
+            //qDebug() << "render video frame";
+            QAbstractVideoBuffer *buffer = 0;
+
+            if (m_usingGLContext) {
+                buffer = new CVGLTextureVideoBuffer((CVOpenGLTextureRef)imageBuffer);
+                CVOpenGLTextureRelease((CVOpenGLTextureRef)imageBuffer);
+                //qDebug() << "render GL video frame" << buffer->handle();
+            } else {
+                buffer = new CVPixelBufferVideoBuffer((CVPixelBufferRef)imageBuffer);
+                CVPixelBufferRelease((CVPixelBufferRef)imageBuffer);
+            }
+
+            QVideoFrame frame(buffer, m_nativeSize, QVideoFrame::Format_RGB32);            
+            m_surface->present(frame);
+            QTVisualContextTask(m_visualContext);
+        }
+    }
+#else
+    Q_UNUSED(ts);
+#endif
+}
+
+#include "moc_qt7movierenderer.cpp"