Differential D5934 Diff 14750 plugins/platforms/drm/drm_backend.cpp

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plugins/platforms/drm/drm_backend.cpp

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256 e.version = KWIN_DRM_EVENT_CONTEXT_VERSION; 256​ e.version = KWIN_DRM_EVENT_CONTEXT_VERSION;
257 e.page_flip_handler = pageFlipHandler; 257​ e.page_flip_handler = pageFlipHandler;
258 drmHandleEvent(m_fd, &e); 258​ drmHandleEvent(m_fd, &e);
259 } 259​ }
260 ); 260​ );
261 m_drmId = device->sysNum(); 261​ m_drmId = device->sysNum();
262 262​
263 // trying to activate Atomic Mode Setting (this means also Universal Planes) 263​ // trying to activate Atomic Mode Setting (this means also Universal Planes)
264 if (qEnvironmentVariableIsSet("KWIN_DRM_AMS")) { 264​ if (!qEnvironmentVariableIsSet("KWIN_DRM_NO_AMS")) {
265 if (drmSetClientCap(m_fd, DRM_CLIENT_CAP_ATOMIC, 1) == 0) { 265​ if (drmSetClientCap(m_fd, DRM_CLIENT_CAP_ATOMIC, 1) == 0) {
266 qCDebug(KWIN_DRM) << "Using Atomic Mode Setting."; 266​ qCDebug(KWIN_DRM) << "Using Atomic Mode Setting.";
267 m_atomicModeSetting = true; 267​ m_atomicModeSetting = true;
268 268​
269 ScopedDrmPointer<drmModePlaneRes, &drmModeFreePlaneResources> planeResources(drmModeGetPlaneResources(m_fd)); 269​ ScopedDrmPointer<drmModePlaneRes, &drmModeFreePlaneResources> planeResources(drmModeGetPlaneResources(m_fd));
270 if (!planeResources) { 270​ if (!planeResources) {
271 qCWarning(KWIN_DRM) << "Failed to get plane resources. Falling back to legacy mode"; 271​ qCWarning(KWIN_DRM) << "Failed to get plane resources. Falling back to legacy mode";
272 m_atomicModeSetting = false; 272​ m_atomicModeSetting = false;
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