src/multimedia/qxvideosurface_maemo5.cpp
changeset 0 876b1a06bc25
child 5 603d3f8b6302
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/multimedia/qxvideosurface_maemo5.cpp	Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,475 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/qx11info_x11.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qvariant.h>
+#include <qvideosurfaceformat.h>
+
+#include "qxvideosurface_maemo5_p.h"
+
+struct XvFormatRgb
+{
+    QVideoFrame::PixelFormat pixelFormat;
+    int bits_per_pixel;
+    int format;
+    int num_planes;
+
+    int depth;
+    unsigned int red_mask;
+    unsigned int green_mask;
+    unsigned int blue_mask;
+
+};
+
+bool operator ==(const XvImageFormatValues &format, const XvFormatRgb &rgb)
+{
+    return format.type == XvRGB
+            && format.bits_per_pixel == rgb.bits_per_pixel
+            && format.format         == rgb.format
+            && format.num_planes     == rgb.num_planes
+            && format.depth          == rgb.depth
+            && format.red_mask       == rgb.red_mask
+            && format.blue_mask      == rgb.blue_mask;
+}
+
+static const XvFormatRgb qt_xvRgbLookup[] =
+{
+    { QVideoFrame::Format_ARGB32, 32, XvPacked, 1, 32, 0x00FF0000, 0x0000FF00, 0x000000FF },
+    { QVideoFrame::Format_RGB32 , 32, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
+    { QVideoFrame::Format_RGB24 , 24, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
+    { QVideoFrame::Format_RGB565, 16, XvPacked, 1, 16, 0x0000F800, 0x000007E0, 0x0000001F },
+    { QVideoFrame::Format_BGRA32, 32, XvPacked, 1, 32, 0xFF000000, 0x00FF0000, 0x0000FF00 },
+    { QVideoFrame::Format_BGR32 , 32, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
+    { QVideoFrame::Format_BGR24 , 24, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
+    { QVideoFrame::Format_BGR565, 16, XvPacked, 1, 16, 0x0000F800, 0x000007E0, 0x0000001F }
+};
+
+struct XvFormatYuv
+{
+    QVideoFrame::PixelFormat pixelFormat;
+    int bits_per_pixel;
+    int format;
+    int num_planes;
+
+    unsigned int y_sample_bits;
+    unsigned int u_sample_bits;
+    unsigned int v_sample_bits;
+    unsigned int horz_y_period;
+    unsigned int horz_u_period;
+    unsigned int horz_v_period;
+    unsigned int vert_y_period;
+    unsigned int vert_u_period;
+    unsigned int vert_v_period;
+    char component_order[32];
+};
+
+bool operator ==(const XvImageFormatValues &format, const XvFormatYuv &yuv)
+{
+    return format.type == XvYUV
+            && format.bits_per_pixel == yuv.bits_per_pixel
+            && format.format         == yuv.format
+            && format.num_planes     == yuv.num_planes
+            && format.y_sample_bits  == yuv.y_sample_bits
+            && format.u_sample_bits  == yuv.u_sample_bits
+            && format.v_sample_bits  == yuv.v_sample_bits
+            && format.horz_y_period  == yuv.horz_y_period
+            && format.horz_u_period  == yuv.horz_u_period
+            && format.horz_v_period  == yuv.horz_v_period
+            && format.horz_y_period  == yuv.vert_y_period
+            && format.vert_u_period  == yuv.vert_u_period
+            && format.vert_v_period  == yuv.vert_v_period
+            && qstrncmp(format.component_order, yuv.component_order, 32) == 0;
+}
+
+static const XvFormatYuv qt_xvYuvLookup[] =
+{
+    { QVideoFrame::Format_YUV444 , 24, XvPacked, 1, 8, 8, 8, 1, 1, 1, 1, 1, 1, "YUV"  },
+    { QVideoFrame::Format_YUV420P, 12, XvPlanar, 3, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YUV"  },
+    { QVideoFrame::Format_YV12   , 12, XvPlanar, 3, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YVU"  },
+    { QVideoFrame::Format_UYVY   , 16, XvPacked, 1, 8, 8, 8, 1, 2, 2, 1, 1, 1, "UYVY" },
+    { QVideoFrame::Format_YUYV   , 16, XvPacked, 1, 8, 8, 8, 1, 2, 2, 1, 1, 1, "YUY2" },
+    { QVideoFrame::Format_YUYV   , 16, XvPacked, 1, 8, 8, 8, 1, 2, 2, 1, 1, 1, "YUYV" },
+    { QVideoFrame::Format_NV12   , 12, XvPlanar, 2, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YUV"  },
+    { QVideoFrame::Format_NV12   , 12, XvPlanar, 2, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YVU"  },
+    { QVideoFrame::Format_Y8     , 8 , XvPlanar, 1, 8, 0, 0, 1, 0, 0, 1, 0, 0, "Y"    }
+};
+
+QXVideoSurface::QXVideoSurface(QObject *parent)
+    : QAbstractVideoSurface(parent)
+    , m_winId(0)
+    , m_portId(0)
+    , m_gc(0)
+    , m_image(0)
+    , m_colorKey(16,7,2)
+{
+}
+
+QXVideoSurface::~QXVideoSurface()
+{
+    if (m_gc)
+        XFreeGC(QX11Info::display(), m_gc);
+
+    if (m_portId != 0)
+        XvUngrabPort(QX11Info::display(), m_portId, 0);
+}
+
+WId QXVideoSurface::winId() const
+{
+    return m_winId;
+}
+
+void QXVideoSurface::setWinId(WId id)
+{
+    if (id == m_winId)
+        return;
+
+    if (m_image)
+        XFree(m_image);
+
+    if (m_gc) {
+        XFreeGC(QX11Info::display(), m_gc);
+        m_gc = 0;
+    }
+
+    if (m_portId != 0)
+        XvUngrabPort(QX11Info::display(), m_portId, 0);
+
+    m_supportedPixelFormats.clear();
+    m_formatIds.clear();
+
+    m_winId = id;
+
+    if (m_winId && findPort()) {
+        querySupportedFormats();
+
+        m_gc = XCreateGC(QX11Info::display(), m_winId, 0, 0);
+
+        if (m_image) {
+            m_image = 0;
+
+            if (!start(surfaceFormat()))
+                QAbstractVideoSurface::stop();
+        }
+    } else if (m_image) {
+        m_image = 0;
+
+        QAbstractVideoSurface::stop();
+    }
+
+    emit supportedFormatsChanged();
+}
+
+QRect QXVideoSurface::displayRect() const
+{
+    return m_displayRect;
+}
+
+void QXVideoSurface::setDisplayRect(const QRect &rect)
+{
+    m_displayRect = rect;
+}
+
+QColor QXVideoSurface::colorKey() const
+{
+    return m_colorKey;
+}
+
+void QXVideoSurface::setColorKey(QColor key)
+{
+    m_colorKey = key;
+}
+
+int QXVideoSurface::getAttribute(const char *attribute) const
+{
+    if (m_portId != 0) {
+        Display *display = QX11Info::display();
+
+        Atom atom = XInternAtom(display, attribute, True);
+
+        int value = 0;
+
+        XvGetPortAttribute(display, m_portId, atom, &value);
+
+        return value;
+    } else {
+        return 0;
+    }
+}
+
+void QXVideoSurface::setAttribute(const char *attribute, int value)
+{
+    if (m_portId != 0) {
+        Display *display = QX11Info::display();
+
+        Atom atom = XInternAtom(display, attribute, True);
+
+        XvSetPortAttribute(display, m_portId, atom, value);
+    }
+}
+
+QList<QVideoFrame::PixelFormat> QXVideoSurface::supportedPixelFormats(
+        QAbstractVideoBuffer::HandleType handleType) const
+{
+    if ( handleType == QAbstractVideoBuffer::NoHandle ||
+         handleType == QAbstractVideoBuffer::XvShmImageHandle )
+        return m_supportedPixelFormats;
+    else
+        return QList<QVideoFrame::PixelFormat>();
+}
+
+bool QXVideoSurface::start(const QVideoSurfaceFormat &format)
+{
+    //qDebug() << "QXVideoSurface::start" << format;
+
+    m_lastFrame = QVideoFrame();
+
+    if (m_image)
+        XFree(m_image);
+
+    m_xvFormatId = 0;
+    for (int i = 0; i < m_supportedPixelFormats.count(); ++i) {
+        if (m_supportedPixelFormats.at(i) == format.pixelFormat()) {
+            m_xvFormatId = m_formatIds.at(i);
+            break;
+        }
+    }
+
+    if (m_xvFormatId == 0) {
+        setError(UnsupportedFormatError);
+    } else {
+        XvImage *image = XvShmCreateImage(
+                QX11Info::display(),
+                m_portId,
+                m_xvFormatId,
+                0,
+                format.frameWidth(),
+                format.frameHeight(),
+                &m_shminfo
+                );
+
+        if (!image) {
+            setError(ResourceError);
+            return false;
+        }
+
+        m_shminfo.shmid = shmget(IPC_PRIVATE, image->data_size, IPC_CREAT | 0777);
+        m_shminfo.shmaddr = image->data = (char*)shmat(m_shminfo.shmid, 0, 0);
+        m_shminfo.readOnly = False;
+
+        if (!XShmAttach(QX11Info::display(), &m_shminfo)) {
+            //qDebug() << "XShmAttach failed";
+            return false;
+        }
+
+        if (!image) {
+            setError(ResourceError);
+        } else {
+            m_viewport = format.viewport();
+            m_image = image;
+
+            quint32 c = m_colorKey.rgb();
+            quint16 colorKey16 = ((c >> 3) & 0x001f)
+                   | ((c >> 5) & 0x07e0)
+                   | ((c >> 8) & 0xf800);
+
+            setAttribute("XV_AUTOPAINT_COLORKEY", 0);
+            setAttribute("XV_COLORKEY", colorKey16);
+            setAttribute("XV_OMAP_VSYNC", 1);
+            setAttribute("XV_DOUBLE_BUFFER", 0);
+
+            QVideoSurfaceFormat newFormat = format;
+            newFormat.setProperty("portId", QVariant(quint64(m_portId)));
+            newFormat.setProperty("xvFormatId", m_xvFormatId);
+            newFormat.setProperty("dataSize", image->data_size);
+
+            return QAbstractVideoSurface::start(newFormat);
+        }
+    }
+
+    if (m_image) {
+        m_image = 0;
+
+        QAbstractVideoSurface::stop();
+    }
+
+    return false;
+}
+
+void QXVideoSurface::stop()
+{
+    if (m_image) {
+        XFree(m_image);
+        m_image = 0;
+        m_lastFrame = QVideoFrame();
+
+        QAbstractVideoSurface::stop();
+    }
+}
+
+bool QXVideoSurface::present(const QVideoFrame &frame)
+{
+    if (!m_image) {
+        setError(StoppedError);
+        return false;
+    } else if (m_image->width != frame.width() || m_image->height != frame.height()) {
+        setError(IncorrectFormatError);
+        return false;
+    } else {
+        m_lastFrame = frame;
+
+        if (!m_lastFrame.map(QAbstractVideoBuffer::ReadOnly)) {
+            qWarning() << "Failed to map video frame";
+            setError(IncorrectFormatError);
+            return false;
+        } else {
+            bool presented = false;
+
+            if (frame.handleType() != QAbstractVideoBuffer::XvShmImageHandle &&
+                m_image->data_size > m_lastFrame.mappedBytes()) {
+                qWarning("Insufficient frame buffer size");
+                setError(IncorrectFormatError);
+            } else if (frame.handleType() != QAbstractVideoBuffer::XvShmImageHandle &&
+                       m_image->num_planes > 0 &&
+                       m_image->pitches[0] != m_lastFrame.bytesPerLine()) {
+                qWarning("Incompatible frame pitches");
+                setError(IncorrectFormatError);
+            } else {
+                XvImage *img = 0;
+
+                if (frame.handleType() == QAbstractVideoBuffer::XvShmImageHandle) {
+                    img = frame.handle().value<XvImage*>();
+                } else {
+                    img = m_image;
+                    memcpy(m_image->data, m_lastFrame.bits(), qMin(m_lastFrame.mappedBytes(), m_image->data_size));
+                }
+
+                if (img)
+                    XvShmPutImage(
+                       QX11Info::display(),
+                       m_portId,
+                       m_winId,
+                       m_gc,
+                       img,
+                       m_viewport.x(),
+                       m_viewport.y(),
+                       m_viewport.width(),
+                       m_viewport.height(),
+                       m_displayRect.x(),
+                       m_displayRect.y(),
+                       m_displayRect.width(),
+                       m_displayRect.height(),
+                       false);
+
+                presented = true;
+            }
+
+            m_lastFrame.unmap();
+
+            return presented;
+        }
+    }
+}
+
+void QXVideoSurface::repaintLastFrame()
+{
+    if (m_lastFrame.isValid())
+        present(QVideoFrame(m_lastFrame));
+}
+
+bool QXVideoSurface::findPort()
+{
+    unsigned int count = 0;
+    XvAdaptorInfo *adaptors = 0;
+    bool portFound = false;
+
+    if (XvQueryAdaptors(QX11Info::display(), m_winId, &count, &adaptors) == Success) {
+        for (unsigned int i = 0; i < count && !portFound; ++i) {
+            if (adaptors[i].type & XvImageMask) {
+                m_portId = adaptors[i].base_id;
+
+                for (unsigned int j = 0; j < adaptors[i].num_ports && !portFound; ++j, ++m_portId)
+                    portFound = XvGrabPort(QX11Info::display(), m_portId, 0) == Success;
+            }
+        }
+        XvFreeAdaptorInfo(adaptors);
+    }
+
+    return portFound;
+}
+
+void QXVideoSurface::querySupportedFormats()
+{
+    int count = 0;
+    if (XvImageFormatValues *imageFormats = XvListImageFormats(
+            QX11Info::display(), m_portId, &count)) {
+        const int rgbCount = sizeof(qt_xvRgbLookup) / sizeof(XvFormatRgb);
+        const int yuvCount = sizeof(qt_xvYuvLookup) / sizeof(XvFormatYuv);
+
+        for (int i = 0; i < count; ++i) {
+            switch (imageFormats[i].type) {
+            case XvRGB:
+                for (int j = 0; j < rgbCount; ++j) {
+                    if (imageFormats[i] == qt_xvRgbLookup[j]) {
+                        m_supportedPixelFormats.append(qt_xvRgbLookup[j].pixelFormat);
+                        m_formatIds.append(imageFormats[i].id);
+                        break;
+                    }
+                }
+                break;
+            case XvYUV:
+                for (int j = 0; j < yuvCount; ++j) {
+                    //skip YUV420P and YV12 formats, they don't work correctly and slow,
+                    //YUV2 == YUYV is just slow
+                    if (imageFormats[i] == qt_xvYuvLookup[j] &&
+                        qt_xvYuvLookup[j].pixelFormat != QVideoFrame::Format_YUV420P &&
+                        qt_xvYuvLookup[j].pixelFormat != QVideoFrame::Format_YV12) {
+                        m_supportedPixelFormats.append(qt_xvYuvLookup[j].pixelFormat);
+                        m_formatIds.append(imageFormats[i].id);
+                        break;
+                    }
+                }
+                break;
+            }
+        }
+        XFree(imageFormats);
+    }
+}