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    41 

    42 #include "pvreglwindowsurface.h"

    43 #include "pvreglscreen.h"

    44 #include <QScreen>

    45 #include <QDebug>

    46 #include <QWSDisplay>

    47 

    48 PvrEglWindowSurface::PvrEglWindowSurface

    49         (QWidget *widget, PvrEglScreen *screen, int screenNum)

    50     : QWSGLWindowSurface(widget)

    51 {

    52     setSurfaceFlags(QWSWindowSurface::Opaque);

    53 

    54     this->widget = widget;

    55     this->screen = screen;

    56     this->pdevice = 0;

    57 

    58     QPoint pos = offset(widget);

    59     QSize size = widget->size();

    60 

    61     PvrQwsRect pvrRect;

    62     pvrRect.x = pos.x();

    63     pvrRect.y = pos.y();

    64     pvrRect.width = size.width();

    65     pvrRect.height = size.height();

    66     transformRects(&pvrRect, 1);

    67 

    68     // Try to recover a previous PvrQwsDrawable object for the widget

    69     // if there is one.  This can happen when a PvrEglWindowSurface

    70     // is created for a widget, bound to a EGLSurface, and then destroyed.

    71     // When a new PvrEglWindowSurface is created for the widget, it will

    72     // pick up the previous PvrQwsDrawable if the EGLSurface has not been

    73     // destroyed in the meantime.

    74     drawable = pvrQwsFetchWindow((long)widget);

    75     if (drawable)

    76         pvrQwsSetGeometry(drawable, &pvrRect);

    77     else

    78         drawable = pvrQwsCreateWindow(screenNum, (long)widget, &pvrRect);

    79     pvrQwsSetRotation(drawable, screen->transformation());

    80 }

    81 

    82 PvrEglWindowSurface::PvrEglWindowSurface()

    83     : QWSGLWindowSurface()

    84 {

    85     setSurfaceFlags(QWSWindowSurface::Opaque);

    86     drawable = 0;

    87     widget = 0;

    88     screen = 0;

    89     pdevice = 0;

    90 }

    91 

    92 PvrEglWindowSurface::~PvrEglWindowSurface()

    93 {

    94     // Release the PvrQwsDrawable.  If it is bound to an EGLSurface,

    95     // then it will stay around until a new PvrEglWindowSurface is

    96     // created for the widget.  If it is not bound to an EGLSurface,

    97     // it will be destroyed immediately.

    98     if (drawable && pvrQwsReleaseWindow(drawable))

    99         pvrQwsDestroyDrawable(drawable);

   100 

   101     delete pdevice;

   102 }

   103 

   104 bool PvrEglWindowSurface::isValid() const

   105 {

   106     return (widget != 0);

   107 }

   108 

   109 void PvrEglWindowSurface::setGeometry(const QRect &rect)

   110 {

   111     if (drawable) {

   112         // XXX: adjust for the screen offset.

   113         PvrQwsRect pvrRect;

   114         pvrRect.x = rect.x();

   115         pvrRect.y = rect.y();

   116         pvrRect.width = rect.width();

   117         pvrRect.height = rect.height();

   118         transformRects(&pvrRect, 1);

   119         pvrQwsSetGeometry(drawable, &pvrRect);

   120         pvrQwsSetRotation(drawable, screen->transformation());

   121     }

   122     QWSGLWindowSurface::setGeometry(rect);

   123 }

   124 

   125 bool PvrEglWindowSurface::move(const QPoint &offset)

   126 {

   127     QRect rect = geometry().translated(offset); 

   128     if (drawable) {

   129         PvrQwsRect pvrRect;

   130         pvrRect.x = rect.x();

   131         pvrRect.y = rect.y();

   132         pvrRect.width = rect.width();

   133         pvrRect.height = rect.height();

   134         transformRects(&pvrRect, 1);

   135         pvrQwsSetGeometry(drawable, &pvrRect);

   136         pvrQwsSetRotation(drawable, screen->transformation());

   137     }

   138     return QWSGLWindowSurface::move(offset);

   139 }

   140 

   141 QByteArray PvrEglWindowSurface::permanentState() const

   142 {

   143     // Nothing interesting to pass to the server just yet.

   144     return QByteArray();

   145 }

   146 

   147 void PvrEglWindowSurface::setPermanentState(const QByteArray &state)

   148 {

   149     Q_UNUSED(state);

   150 }

   151 

   152 void PvrEglWindowSurface::flush

   153         (QWidget *widget, const QRegion &region, const QPoint &offset)

   154 {

   155     // The GL paint engine is responsible for the swapBuffers() call.

   156     // If we were to call the base class's implementation of flush()

   157     // then it would fetch the image() and manually blit it to the

   158     // screeen instead of using the fast PVR2D blit.

   159     Q_UNUSED(widget);

   160     Q_UNUSED(region);

   161     Q_UNUSED(offset);

   162 }

   163 

   164 QImage PvrEglWindowSurface::image() const

   165 {

   166     if (drawable) {

   167         PvrQwsRect pvrRect;

   168         pvrQwsGetGeometry(drawable, &pvrRect);

   169         void *data = pvrQwsGetRenderBuffer(drawable);

   170         if (data) {

   171             return QImage((uchar *)data, pvrRect.width, pvrRect.height,

   172                           pvrQwsGetStride(drawable), screen->pixelFormat());

   173         }

   174     }

   175     return QImage(16, 16, screen->pixelFormat());

   176 }

   177 

   178 QPaintDevice *PvrEglWindowSurface::paintDevice()

   179 {

   180     return widget;

   181 }

   182 

   183 void PvrEglWindowSurface::setDirectRegion(const QRegion &r, int id)

   184 {

   185     QWSGLWindowSurface::setDirectRegion(r, id);

   186 

   187     if (!drawable)

   188         return;

   189 

   190     // Clip the region to the window boundaries in case the child

   191     // is partially outside the geometry of the parent.

   192     QWidget *window = widget->window();

   193     QRegion region = r;

   194     if (widget != window) {

   195 	QRect rect = window->geometry();

   196         rect.moveTo(window->mapToGlobal(QPoint(0, 0)));

   197         region = region.intersect(rect);

   198     }

   199 

   200     if (region.isEmpty()) {

   201         pvrQwsClearVisibleRegion(drawable);

   202     } else if (region.numRects() == 1) {

   203         QRect rect = region.boundingRect();

   204         PvrQwsRect pvrRect;

   205         pvrRect.x = rect.x();

   206         pvrRect.y = rect.y();

   207         pvrRect.width = rect.width();

   208         pvrRect.height = rect.height();

   209         transformRects(&pvrRect, 1);

   210         pvrQwsSetVisibleRegion(drawable, &pvrRect, 1);

   211         pvrQwsSetRotation(drawable, screen->transformation());

   212         if (!pvrQwsSwapBuffers(drawable, 1))

   213             screen->solidFill(QColor(0, 0, 0), region);

   214     } else {

   215         QVector<QRect> rects = region.rects();

   216         PvrQwsRect *pvrRects = new PvrQwsRect [rects.size()];

   217         for (int index = 0; index < rects.size(); ++index) {

   218             QRect rect = rects[index];

   219             pvrRects[index].x = rect.x();

   220             pvrRects[index].y = rect.y();

   221             pvrRects[index].width = rect.width();

   222             pvrRects[index].height = rect.height();

   223         }

   224         transformRects(pvrRects, rects.size());

   225         pvrQwsSetVisibleRegion(drawable, pvrRects, rects.size());

   226         pvrQwsSetRotation(drawable, screen->transformation());

   227         if (!pvrQwsSwapBuffers(drawable, 1))

   228             screen->solidFill(QColor(0, 0, 0), region);

   229         delete [] pvrRects;

   230     }

   231 }

   232 

   233 void PvrEglWindowSurface::transformRects(PvrQwsRect *rects, int count) const

   234 {

   235     switch (screen->transformation()) {

   236     case 0: break;

   237 

   238     case 90:

   239     {

   240         for (int index = 0; index < count; ++index) {

   241             int x = rects[index].y;

   242             int y = screen->height() - (rects[index].x + rects[index].width);

   243             rects[index].x = x;

   244             rects[index].y = y;

   245             qSwap(rects[index].width, rects[index].height);

   246         }

   247     }

   248     break;

   249 

   250     case 180:

   251     {

   252         for (int index = 0; index < count; ++index) {

   253             int x = screen->width() - (rects[index].x + rects[index].width);

   254             int y = screen->height() - (rects[index].y + rects[index].height);

   255             rects[index].x = x;

   256             rects[index].y = y;

   257         }

   258     }

   259     break;

   260 

   261     case 270:

   262     {

   263         for (int index = 0; index < count; ++index) {

   264             int x = screen->width() - (rects[index].y + rects[index].height);

   265             int y = rects[index].x;

   266             rects[index].x = x;

   267             rects[index].y = y;

   268             qSwap(rects[index].width, rects[index].height);

   269         }

   270     }

   271     break;

   272     }

   273 }