src/multimedia/qxvideosurface_maemo5.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Mobility Components.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QtGui/qx11info_x11.h>
       
    43 #include <QtCore/qdebug.h>
       
    44 #include <QtCore/qvariant.h>
       
    45 #include <qvideosurfaceformat.h>
       
    46 
       
    47 #include "qxvideosurface_maemo5_p.h"
       
    48 
       
    49 struct XvFormatRgb
       
    50 {
       
    51     QVideoFrame::PixelFormat pixelFormat;
       
    52     int bits_per_pixel;
       
    53     int format;
       
    54     int num_planes;
       
    55 
       
    56     int depth;
       
    57     unsigned int red_mask;
       
    58     unsigned int green_mask;
       
    59     unsigned int blue_mask;
       
    60 
       
    61 };
       
    62 
       
    63 bool operator ==(const XvImageFormatValues &format, const XvFormatRgb &rgb)
       
    64 {
       
    65     return format.type == XvRGB
       
    66             && format.bits_per_pixel == rgb.bits_per_pixel
       
    67             && format.format         == rgb.format
       
    68             && format.num_planes     == rgb.num_planes
       
    69             && format.depth          == rgb.depth
       
    70             && format.red_mask       == rgb.red_mask
       
    71             && format.blue_mask      == rgb.blue_mask;
       
    72 }
       
    73 
       
    74 static const XvFormatRgb qt_xvRgbLookup[] =
       
    75 {
       
    76     { QVideoFrame::Format_ARGB32, 32, XvPacked, 1, 32, 0x00FF0000, 0x0000FF00, 0x000000FF },
       
    77     { QVideoFrame::Format_RGB32 , 32, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
       
    78     { QVideoFrame::Format_RGB24 , 24, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
       
    79     { QVideoFrame::Format_RGB565, 16, XvPacked, 1, 16, 0x0000F800, 0x000007E0, 0x0000001F },
       
    80     { QVideoFrame::Format_BGRA32, 32, XvPacked, 1, 32, 0xFF000000, 0x00FF0000, 0x0000FF00 },
       
    81     { QVideoFrame::Format_BGR32 , 32, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
       
    82     { QVideoFrame::Format_BGR24 , 24, XvPacked, 1, 24, 0x00FF0000, 0x0000FF00, 0x000000FF },
       
    83     { QVideoFrame::Format_BGR565, 16, XvPacked, 1, 16, 0x0000F800, 0x000007E0, 0x0000001F }
       
    84 };
       
    85 
       
    86 struct XvFormatYuv
       
    87 {
       
    88     QVideoFrame::PixelFormat pixelFormat;
       
    89     int bits_per_pixel;
       
    90     int format;
       
    91     int num_planes;
       
    92 
       
    93     unsigned int y_sample_bits;
       
    94     unsigned int u_sample_bits;
       
    95     unsigned int v_sample_bits;
       
    96     unsigned int horz_y_period;
       
    97     unsigned int horz_u_period;
       
    98     unsigned int horz_v_period;
       
    99     unsigned int vert_y_period;
       
   100     unsigned int vert_u_period;
       
   101     unsigned int vert_v_period;
       
   102     char component_order[32];
       
   103 };
       
   104 
       
   105 bool operator ==(const XvImageFormatValues &format, const XvFormatYuv &yuv)
       
   106 {
       
   107     return format.type == XvYUV
       
   108             && format.bits_per_pixel == yuv.bits_per_pixel
       
   109             && format.format         == yuv.format
       
   110             && format.num_planes     == yuv.num_planes
       
   111             && format.y_sample_bits  == yuv.y_sample_bits
       
   112             && format.u_sample_bits  == yuv.u_sample_bits
       
   113             && format.v_sample_bits  == yuv.v_sample_bits
       
   114             && format.horz_y_period  == yuv.horz_y_period
       
   115             && format.horz_u_period  == yuv.horz_u_period
       
   116             && format.horz_v_period  == yuv.horz_v_period
       
   117             && format.horz_y_period  == yuv.vert_y_period
       
   118             && format.vert_u_period  == yuv.vert_u_period
       
   119             && format.vert_v_period  == yuv.vert_v_period
       
   120             && qstrncmp(format.component_order, yuv.component_order, 32) == 0;
       
   121 }
       
   122 
       
   123 static const XvFormatYuv qt_xvYuvLookup[] =
       
   124 {
       
   125     { QVideoFrame::Format_YUV444 , 24, XvPacked, 1, 8, 8, 8, 1, 1, 1, 1, 1, 1, "YUV"  },
       
   126     { QVideoFrame::Format_YUV420P, 12, XvPlanar, 3, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YUV"  },
       
   127     { QVideoFrame::Format_YV12   , 12, XvPlanar, 3, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YVU"  },
       
   128     { QVideoFrame::Format_UYVY   , 16, XvPacked, 1, 8, 8, 8, 1, 2, 2, 1, 1, 1, "UYVY" },
       
   129     { QVideoFrame::Format_YUYV   , 16, XvPacked, 1, 8, 8, 8, 1, 2, 2, 1, 1, 1, "YUY2" },
       
   130     { QVideoFrame::Format_YUYV   , 16, XvPacked, 1, 8, 8, 8, 1, 2, 2, 1, 1, 1, "YUYV" },
       
   131     { QVideoFrame::Format_NV12   , 12, XvPlanar, 2, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YUV"  },
       
   132     { QVideoFrame::Format_NV12   , 12, XvPlanar, 2, 8, 8, 8, 1, 2, 2, 1, 2, 2, "YVU"  },
       
   133     { QVideoFrame::Format_Y8     , 8 , XvPlanar, 1, 8, 0, 0, 1, 0, 0, 1, 0, 0, "Y"    }
       
   134 };
       
   135 
       
   136 QXVideoSurface::QXVideoSurface(QObject *parent)
       
   137     : QAbstractVideoSurface(parent)
       
   138     , m_winId(0)
       
   139     , m_portId(0)
       
   140     , m_gc(0)
       
   141     , m_image(0)
       
   142     , m_colorKey(16,7,2)
       
   143 {
       
   144 }
       
   145 
       
   146 QXVideoSurface::~QXVideoSurface()
       
   147 {
       
   148     if (m_gc)
       
   149         XFreeGC(QX11Info::display(), m_gc);
       
   150 
       
   151     if (m_portId != 0)
       
   152         XvUngrabPort(QX11Info::display(), m_portId, 0);
       
   153 }
       
   154 
       
   155 WId QXVideoSurface::winId() const
       
   156 {
       
   157     return m_winId;
       
   158 }
       
   159 
       
   160 void QXVideoSurface::setWinId(WId id)
       
   161 {
       
   162     if (id == m_winId)
       
   163         return;
       
   164 
       
   165     if (m_image)
       
   166         XFree(m_image);
       
   167 
       
   168     if (m_gc) {
       
   169         XFreeGC(QX11Info::display(), m_gc);
       
   170         m_gc = 0;
       
   171     }
       
   172 
       
   173     if (m_portId != 0)
       
   174         XvUngrabPort(QX11Info::display(), m_portId, 0);
       
   175 
       
   176     m_supportedPixelFormats.clear();
       
   177     m_formatIds.clear();
       
   178 
       
   179     m_winId = id;
       
   180 
       
   181     if (m_winId && findPort()) {
       
   182         querySupportedFormats();
       
   183 
       
   184         m_gc = XCreateGC(QX11Info::display(), m_winId, 0, 0);
       
   185 
       
   186         if (m_image) {
       
   187             m_image = 0;
       
   188 
       
   189             if (!start(surfaceFormat()))
       
   190                 QAbstractVideoSurface::stop();
       
   191         }
       
   192     } else if (m_image) {
       
   193         m_image = 0;
       
   194 
       
   195         QAbstractVideoSurface::stop();
       
   196     }
       
   197 
       
   198     emit supportedFormatsChanged();
       
   199 }
       
   200 
       
   201 QRect QXVideoSurface::displayRect() const
       
   202 {
       
   203     return m_displayRect;
       
   204 }
       
   205 
       
   206 void QXVideoSurface::setDisplayRect(const QRect &rect)
       
   207 {
       
   208     m_displayRect = rect;
       
   209 }
       
   210 
       
   211 QColor QXVideoSurface::colorKey() const
       
   212 {
       
   213     return m_colorKey;
       
   214 }
       
   215 
       
   216 void QXVideoSurface::setColorKey(QColor key)
       
   217 {
       
   218     m_colorKey = key;
       
   219 }
       
   220 
       
   221 int QXVideoSurface::getAttribute(const char *attribute) const
       
   222 {
       
   223     if (m_portId != 0) {
       
   224         Display *display = QX11Info::display();
       
   225 
       
   226         Atom atom = XInternAtom(display, attribute, True);
       
   227 
       
   228         int value = 0;
       
   229 
       
   230         XvGetPortAttribute(display, m_portId, atom, &value);
       
   231 
       
   232         return value;
       
   233     } else {
       
   234         return 0;
       
   235     }
       
   236 }
       
   237 
       
   238 void QXVideoSurface::setAttribute(const char *attribute, int value)
       
   239 {
       
   240     if (m_portId != 0) {
       
   241         Display *display = QX11Info::display();
       
   242 
       
   243         Atom atom = XInternAtom(display, attribute, True);
       
   244 
       
   245         XvSetPortAttribute(display, m_portId, atom, value);
       
   246     }
       
   247 }
       
   248 
       
   249 QList<QVideoFrame::PixelFormat> QXVideoSurface::supportedPixelFormats(
       
   250         QAbstractVideoBuffer::HandleType handleType) const
       
   251 {
       
   252     if ( handleType == QAbstractVideoBuffer::NoHandle ||
       
   253          handleType == QAbstractVideoBuffer::XvShmImageHandle )
       
   254         return m_supportedPixelFormats;
       
   255     else
       
   256         return QList<QVideoFrame::PixelFormat>();
       
   257 }
       
   258 
       
   259 bool QXVideoSurface::start(const QVideoSurfaceFormat &format)
       
   260 {
       
   261     //qDebug() << "QXVideoSurface::start" << format;
       
   262 
       
   263     m_lastFrame = QVideoFrame();
       
   264 
       
   265     if (m_image)
       
   266         XFree(m_image);
       
   267 
       
   268     m_xvFormatId = 0;
       
   269     for (int i = 0; i < m_supportedPixelFormats.count(); ++i) {
       
   270         if (m_supportedPixelFormats.at(i) == format.pixelFormat()) {
       
   271             m_xvFormatId = m_formatIds.at(i);
       
   272             break;
       
   273         }
       
   274     }
       
   275 
       
   276     if (m_xvFormatId == 0) {
       
   277         setError(UnsupportedFormatError);
       
   278     } else {
       
   279         XvImage *image = XvShmCreateImage(
       
   280                 QX11Info::display(),
       
   281                 m_portId,
       
   282                 m_xvFormatId,
       
   283                 0,
       
   284                 format.frameWidth(),
       
   285                 format.frameHeight(),
       
   286                 &m_shminfo
       
   287                 );
       
   288 
       
   289         if (!image) {
       
   290             setError(ResourceError);
       
   291             return false;
       
   292         }
       
   293 
       
   294         m_shminfo.shmid = shmget(IPC_PRIVATE, image->data_size, IPC_CREAT | 0777);
       
   295         m_shminfo.shmaddr = image->data = (char*)shmat(m_shminfo.shmid, 0, 0);
       
   296         m_shminfo.readOnly = False;
       
   297 
       
   298         if (!XShmAttach(QX11Info::display(), &m_shminfo)) {
       
   299             //qDebug() << "XShmAttach failed";
       
   300             return false;
       
   301         }
       
   302 
       
   303         if (!image) {
       
   304             setError(ResourceError);
       
   305         } else {
       
   306             m_viewport = format.viewport();
       
   307             m_image = image;
       
   308 
       
   309             quint32 c = m_colorKey.rgb();
       
   310             quint16 colorKey16 = ((c >> 3) & 0x001f)
       
   311                    | ((c >> 5) & 0x07e0)
       
   312                    | ((c >> 8) & 0xf800);
       
   313 
       
   314             setAttribute("XV_AUTOPAINT_COLORKEY", 0);
       
   315             setAttribute("XV_COLORKEY", colorKey16);
       
   316             setAttribute("XV_OMAP_VSYNC", 1);
       
   317             setAttribute("XV_DOUBLE_BUFFER", 0);
       
   318 
       
   319             QVideoSurfaceFormat newFormat = format;
       
   320             newFormat.setProperty("portId", QVariant(quint64(m_portId)));
       
   321             newFormat.setProperty("xvFormatId", m_xvFormatId);
       
   322             newFormat.setProperty("dataSize", image->data_size);
       
   323 
       
   324             return QAbstractVideoSurface::start(newFormat);
       
   325         }
       
   326     }
       
   327 
       
   328     if (m_image) {
       
   329         m_image = 0;
       
   330 
       
   331         QAbstractVideoSurface::stop();
       
   332     }
       
   333 
       
   334     return false;
       
   335 }
       
   336 
       
   337 void QXVideoSurface::stop()
       
   338 {
       
   339     if (m_image) {
       
   340         XFree(m_image);
       
   341         m_image = 0;
       
   342         m_lastFrame = QVideoFrame();
       
   343 
       
   344         QAbstractVideoSurface::stop();
       
   345     }
       
   346 }
       
   347 
       
   348 bool QXVideoSurface::present(const QVideoFrame &frame)
       
   349 {
       
   350     if (!m_image) {
       
   351         setError(StoppedError);
       
   352         return false;
       
   353     } else if (m_image->width != frame.width() || m_image->height != frame.height()) {
       
   354         setError(IncorrectFormatError);
       
   355         return false;
       
   356     } else {
       
   357         m_lastFrame = frame;
       
   358 
       
   359         if (!m_lastFrame.map(QAbstractVideoBuffer::ReadOnly)) {
       
   360             qWarning() << "Failed to map video frame";
       
   361             setError(IncorrectFormatError);
       
   362             return false;
       
   363         } else {
       
   364             bool presented = false;
       
   365 
       
   366             if (frame.handleType() != QAbstractVideoBuffer::XvShmImageHandle &&
       
   367                 m_image->data_size > m_lastFrame.mappedBytes()) {
       
   368                 qWarning("Insufficient frame buffer size");
       
   369                 setError(IncorrectFormatError);
       
   370             } else if (frame.handleType() != QAbstractVideoBuffer::XvShmImageHandle &&
       
   371                        m_image->num_planes > 0 &&
       
   372                        m_image->pitches[0] != m_lastFrame.bytesPerLine()) {
       
   373                 qWarning("Incompatible frame pitches");
       
   374                 setError(IncorrectFormatError);
       
   375             } else {
       
   376                 XvImage *img = 0;
       
   377 
       
   378                 if (frame.handleType() == QAbstractVideoBuffer::XvShmImageHandle) {
       
   379                     img = frame.handle().value<XvImage*>();
       
   380                 } else {
       
   381                     img = m_image;
       
   382                     memcpy(m_image->data, m_lastFrame.bits(), qMin(m_lastFrame.mappedBytes(), m_image->data_size));
       
   383                 }
       
   384 
       
   385                 if (img)
       
   386                     XvShmPutImage(
       
   387                        QX11Info::display(),
       
   388                        m_portId,
       
   389                        m_winId,
       
   390                        m_gc,
       
   391                        img,
       
   392                        m_viewport.x(),
       
   393                        m_viewport.y(),
       
   394                        m_viewport.width(),
       
   395                        m_viewport.height(),
       
   396                        m_displayRect.x(),
       
   397                        m_displayRect.y(),
       
   398                        m_displayRect.width(),
       
   399                        m_displayRect.height(),
       
   400                        false);
       
   401 
       
   402                 presented = true;
       
   403             }
       
   404 
       
   405             m_lastFrame.unmap();
       
   406 
       
   407             return presented;
       
   408         }
       
   409     }
       
   410 }
       
   411 
       
   412 void QXVideoSurface::repaintLastFrame()
       
   413 {
       
   414     if (m_lastFrame.isValid())
       
   415         present(QVideoFrame(m_lastFrame));
       
   416 }
       
   417 
       
   418 bool QXVideoSurface::findPort()
       
   419 {
       
   420     unsigned int count = 0;
       
   421     XvAdaptorInfo *adaptors = 0;
       
   422     bool portFound = false;
       
   423 
       
   424     if (XvQueryAdaptors(QX11Info::display(), m_winId, &count, &adaptors) == Success) {
       
   425         for (unsigned int i = 0; i < count && !portFound; ++i) {
       
   426             if (adaptors[i].type & XvImageMask) {
       
   427                 m_portId = adaptors[i].base_id;
       
   428 
       
   429                 for (unsigned int j = 0; j < adaptors[i].num_ports && !portFound; ++j, ++m_portId)
       
   430                     portFound = XvGrabPort(QX11Info::display(), m_portId, 0) == Success;
       
   431             }
       
   432         }
       
   433         XvFreeAdaptorInfo(adaptors);
       
   434     }
       
   435 
       
   436     return portFound;
       
   437 }
       
   438 
       
   439 void QXVideoSurface::querySupportedFormats()
       
   440 {
       
   441     int count = 0;
       
   442     if (XvImageFormatValues *imageFormats = XvListImageFormats(
       
   443             QX11Info::display(), m_portId, &count)) {
       
   444         const int rgbCount = sizeof(qt_xvRgbLookup) / sizeof(XvFormatRgb);
       
   445         const int yuvCount = sizeof(qt_xvYuvLookup) / sizeof(XvFormatYuv);
       
   446 
       
   447         for (int i = 0; i < count; ++i) {
       
   448             switch (imageFormats[i].type) {
       
   449             case XvRGB:
       
   450                 for (int j = 0; j < rgbCount; ++j) {
       
   451                     if (imageFormats[i] == qt_xvRgbLookup[j]) {
       
   452                         m_supportedPixelFormats.append(qt_xvRgbLookup[j].pixelFormat);
       
   453                         m_formatIds.append(imageFormats[i].id);
       
   454                         break;
       
   455                     }
       
   456                 }
       
   457                 break;
       
   458             case XvYUV:
       
   459                 for (int j = 0; j < yuvCount; ++j) {
       
   460                     //skip YUV420P and YV12 formats, they don't work correctly and slow,
       
   461                     //YUV2 == YUYV is just slow
       
   462                     if (imageFormats[i] == qt_xvYuvLookup[j] &&
       
   463                         qt_xvYuvLookup[j].pixelFormat != QVideoFrame::Format_YUV420P &&
       
   464                         qt_xvYuvLookup[j].pixelFormat != QVideoFrame::Format_YV12) {
       
   465                         m_supportedPixelFormats.append(qt_xvYuvLookup[j].pixelFormat);
       
   466                         m_formatIds.append(imageFormats[i].id);
       
   467                         break;
       
   468                     }
       
   469                 }
       
   470                 break;
       
   471             }
       
   472         }
       
   473         XFree(imageFormats);
       
   474     }
       
   475 }