src/plugins/platforms/wayland/qwaylanddisplay.cpp

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  41
  42 #include "qwaylanddisplay.h"
  43
  44 #include "qwaylandwindow.h"
  45 #include "qwaylandscreen.h"
  46 #include "qwaylandcursor.h"
  47 #include "qwaylandinputdevice.h"
  48 #include "qwaylandclipboard.h"
  49 #include "qwaylanddnd.h"
  50
  51 #ifdef QT_WAYLAND_GL_SUPPORT
  52 #include "gl_integration/qwaylandglintegration.h"
  53 #endif
  54
  55 #ifdef QT_WAYLAND_WINDOWMANAGER_SUPPORT
  56 #include "windowmanager_integration/qwaylandwindowmanagerintegration.h"
  57 #endif
  58
  59 #include <QtCore/QAbstractEventDispatcher>
  60 #include <QtGui/private/qguiapplication_p.h>
  61
  62 #include <unistd.h>
  63 #include <fcntl.h>
  64 #include <stdio.h>
  65 #include <errno.h>
  66
  67 struct wl_surface *QWaylandDisplay::createSurface(void *handle)
  68 {
  69     struct wl_surface * surface = wl_compositor_create_surface(mCompositor);
  70     wl_surface_set_user_data(surface, handle);
  71     return surface;
  72 }
  73
  74 struct wl_buffer *QWaylandDisplay::createShmBuffer(int fd,
  75                                                    int width, int height,
  76                                                    uint32_t stride,
  77                                                    struct wl_visual *visual)
  78 {
  79     return wl_shm_create_buffer(mShm, fd, width, height, stride, visual);
  80 }
  81
  82 struct wl_visual *QWaylandDisplay::rgbVisual()
  83 {
  84     return rgb_visual;
  85 }
  86
  87 struct wl_visual *QWaylandDisplay::argbVisual()
  88 {
  89     return argb_visual;
  90 }
  91
  92 struct wl_visual *QWaylandDisplay::argbPremultipliedVisual()
  93 {
  94     return premultiplied_argb_visual;
  95 }
  96
  97 #ifdef QT_WAYLAND_GL_SUPPORT
  98 QWaylandGLIntegration * QWaylandDisplay::eglIntegration()
  99 {
 100     return mEglIntegration;
 101 }
 102 #endif
 103
 104 #ifdef QT_WAYLAND_WINDOWMANAGER_SUPPORT
 105 QWaylandWindowManagerIntegration *QWaylandDisplay::windowManagerIntegration()
 106 {
 107     return mWindowManagerIntegration;
 108 }
 109 #endif
 110
 111 void QWaylandDisplay::shellHandleConfigure(void *data, struct wl_shell *shell,
 112                                            uint32_t time, uint32_t edges,
 113                                            struct wl_surface *surface,
 114                                            int32_t width, int32_t height)
 115 {
 116     Q_UNUSED(data);
 117     Q_UNUSED(shell);
 118     Q_UNUSED(time);
 119     Q_UNUSED(edges);
 120     QWaylandWindow *ww = (QWaylandWindow *) wl_surface_get_user_data(surface);
 121
 122     ww->configure(time, edges, 0, 0, width, height);
 123 }
 124
 125 const struct wl_shell_listener QWaylandDisplay::shellListener = {
 126     QWaylandDisplay::shellHandleConfigure,
 127 };
 128
 129 static QWaylandDisplay *display = 0;
 130
 131 QWaylandDisplay::QWaylandDisplay(void)
 132     : argb_visual(0), premultiplied_argb_visual(0), rgb_visual(0)
 133 {
 134     display = this;
 135     qRegisterMetaType<uint32_t>("uint32_t");
 136
 137     mDisplay = wl_display_connect(NULL);
 138     if (mDisplay == NULL) {
 139         qErrnoWarning(errno, "Failed to create display");
 140         qFatal("No wayland connection available.");
 141     }
 142
 143     wl_display_add_global_listener(mDisplay, QWaylandDisplay::displayHandleGlobal, this);
 144
 145     mFd = wl_display_get_fd(mDisplay, sourceUpdate, this);
 146     QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::eventDispatcher;
 147     connect(dispatcher, SIGNAL(aboutToBlock()), this, SLOT(flushRequests()));
 148
 149     mReadNotifier = new QSocketNotifier(mFd, QSocketNotifier::Read, this);
 150     connect(mReadNotifier, SIGNAL(activated(int)), this, SLOT(readEvents()));
 151
 152 #ifdef QT_WAYLAND_GL_SUPPORT
 153     mEglIntegration = QWaylandGLIntegration::createGLIntegration(this);
 154 #endif
 155
 156 #ifdef QT_WAYLAND_WINDOWMANAGER_SUPPORT
 157     mWindowManagerIntegration = QWaylandWindowManagerIntegration::createIntegration(this);
 158 #endif
 159
 160     blockingReadEvents();
 161
 162 #ifdef QT_WAYLAND_GL_SUPPORT
 163     mEglIntegration->initialize();
 164 #endif
 165
 166     waitForScreens();
 167 }
 168
 169 QWaylandDisplay::~QWaylandDisplay(void)
 170 {
 171     close(mFd);
 172 #ifdef QT_WAYLAND_GL_SUPPORT
 173     delete mEglIntegration;
 174 #endif
 175     wl_display_destroy(mDisplay);
 176 }
 177
 178 void QWaylandDisplay::createNewScreen(struct wl_output *output, QRect geometry)
 179 {
 180     QWaylandScreen *waylandScreen = new QWaylandScreen(this,output,geometry);
 181     mScreens.append(waylandScreen);
 182 }
 183
 184 void QWaylandDisplay::syncCallback(wl_display_sync_func_t func, void *data)
 185 {
 186     wl_display_sync_callback(mDisplay, func, data);
 187 }
 188
 189 void QWaylandDisplay::frameCallback(wl_display_frame_func_t func, struct wl_surface *surface, void *data)
 190 {
 191     wl_display_frame_callback(mDisplay, surface, func, data);
 192 }
 193
 194 void QWaylandDisplay::flushRequests()
 195 {
 196     if (mSocketMask & WL_DISPLAY_WRITABLE)
 197         wl_display_iterate(mDisplay, WL_DISPLAY_WRITABLE);
 198 }
 199
 200 void QWaylandDisplay::readEvents()
 201 {
 202 // verify that there is still data on the socket
 203     fd_set fds;
 204     FD_ZERO(&fds);
 205     FD_SET(mFd, &fds);
 206     fd_set nds;
 207     FD_ZERO(&nds);
 208     fd_set rs = fds;
 209     fd_set ws = nds;
 210     fd_set es = nds;
 211     timeval timeout;
 212     timeout.tv_sec = 0;
 213     timeout.tv_usec = 0;
 214     int ret = ::select(mFd+1, &rs, &ws, &es, &timeout );
 215
 216     if (ret <= 0) {
 217         //qDebug("QWaylandDisplay::readEvents() No data... blocking avoided");
 218         return;
 219     }
 220
 221     wl_display_iterate(mDisplay, WL_DISPLAY_READABLE);
 222 }
 223
 224 void QWaylandDisplay::blockingReadEvents()
 225 {
 226     wl_display_iterate(mDisplay, WL_DISPLAY_READABLE);
 227 }
 228
 229 int QWaylandDisplay::sourceUpdate(uint32_t mask, void *data)
 230 {
 231     QWaylandDisplay *waylandDisplay = static_cast<QWaylandDisplay *>(data);
 232     waylandDisplay->mSocketMask = mask;
 233
 234     return 0;
 235 }
 236
 237 void QWaylandDisplay::outputHandleGeometry(void *data,
 238                                            wl_output *output,
 239                                            int32_t x, int32_t y,
 240                                            int32_t physicalWidth,
 241                                            int32_t physicalHeight,
 242                                            int subpixel,
 243                                            const char *make, const char *model)
 244 {
 245     QWaylandDisplay *waylandDisplay = static_cast<QWaylandDisplay *>(data);
 246     QRect outputRect = QRect(x, y, physicalWidth, physicalHeight);
 247     waylandDisplay->createNewScreen(output,outputRect);
 248 }
 249
 250 void QWaylandDisplay::mode(void *data,
 251              struct wl_output *wl_output,
 252              uint32_t flags,
 253              int width,
 254              int height,
 255              int refresh)
 256 {
 257     Q_UNUSED(data);
 258     Q_UNUSED(wl_output);
 259     Q_UNUSED(flags);
 260     Q_UNUSED(width);
 261     Q_UNUSED(height);
 262     Q_UNUSED(refresh);
 263 }
 264
 265 const struct wl_output_listener QWaylandDisplay::outputListener = {
 266     QWaylandDisplay::outputHandleGeometry,
 267     QWaylandDisplay::mode
 268 };
 269
 270 const struct wl_compositor_listener QWaylandDisplay::compositorListener = {
 271     QWaylandDisplay::handleVisual,
 272 };
 273
 274
 275 void QWaylandDisplay::waitForScreens()
 276 {
 277     flushRequests();
 278     while (mScreens.isEmpty())
 279         blockingReadEvents();
 280 }
 281
 282 void QWaylandDisplay::displayHandleGlobal(struct wl_display *display,
 283                                           uint32_t id,
 284                                           const char *interface,
 285                                           uint32_t version,
 286                                           void *data)
 287 {
 288     Q_UNUSED(display);
 289     QWaylandDisplay *that = static_cast<QWaylandDisplay *>(data);
 290     that->displayHandleGlobal(id, QByteArray(interface), version);
 291 }
 292
 293 void QWaylandDisplay::displayHandleGlobal(uint32_t id,
 294                                           const QByteArray &interface,
 295                                           uint32_t version)
 296 {
 297     Q_UNUSED(version);
 298     if (interface == "wl_output") {
 299         struct wl_output *output = wl_output_create(mDisplay, id, 1);
 300         wl_output_add_listener(output, &outputListener, this);
 301     } else if (interface == "wl_compositor") {
 302         mCompositor = wl_compositor_create(mDisplay, id, 1);
 303         wl_compositor_add_listener(mCompositor,
 304                                    &compositorListener, this);
 305     } else if (interface == "wl_shm") {
 306         mShm = wl_shm_create(mDisplay, id, 1);
 307     } else if (interface == "wl_shell"){
 308         mShell = wl_shell_create(mDisplay, id, 1);
 309         wl_shell_add_listener(mShell, &shellListener, this);
 310     } else if (interface == "wl_input_device") {
 311         QWaylandInputDevice *inputDevice =
 312             new QWaylandInputDevice(this, id);
 313         mInputDevices.append(inputDevice);
 314     } else if (interface == "wl_selection_offer") {
 315         QWaylandClipboard::instance(display)->createSelectionOffer(id);
 316     } else if (interface == "wl_drag_offer") {
 317         QWaylandDrag::instance(display)->createDragOffer(id);
 318     }
 319 }
 320
 321 void QWaylandDisplay::handleVisual(void *data,
 322                                    struct wl_compositor *compositor,
 323                                    uint32_t id, uint32_t token)
 324 {
 325     QWaylandDisplay *self = static_cast<QWaylandDisplay *>(data);
 326
 327     switch (token) {
 328     case WL_COMPOSITOR_VISUAL_ARGB32:
 329         self->argb_visual = wl_visual_create(self->mDisplay, id, 1);
 330         break;
 331     case WL_COMPOSITOR_VISUAL_PREMULTIPLIED_ARGB32:
 332         self->premultiplied_argb_visual =
 333             wl_visual_create(self->mDisplay, id, 1);
 334         break;
 335     case WL_COMPOSITOR_VISUAL_XRGB32:
 336         self->rgb_visual = wl_visual_create(self->mDisplay, id, 1);
 337         break;
 338     }
 339 }