/** * FreeRDP: A Remote Desktop Protocol Implementation * X11 Monitor Handling * * Copyright 2011 Marc-Andre Moreau * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include #include #define TAG CLIENT_TAG("x11") #ifdef WITH_XINERAMA #include #endif #include "xf_monitor.h" /* See MSDN Section on Multiple Display Monitors: http://msdn.microsoft.com/en-us/library/dd145071 */ int xf_list_monitors(xfContext* xfc) { #ifdef WITH_XINERAMA Display* display; int major, minor; int i, nmonitors = 0; XineramaScreenInfo* screen = NULL; display = XOpenDisplay(NULL); if (!display) { WLog_ERR(TAG, "failed to open X display"); return -1; } if (XineramaQueryExtension(display, &major, &minor)) { if (XineramaIsActive(display)) { screen = XineramaQueryScreens(display, &nmonitors); for (i = 0; i < nmonitors; i++) { printf(" %s [%d] %hdx%hd\t+%hd+%hd\n", (i == 0) ? "*" : " ", i, screen[i].width, screen[i].height, screen[i].x_org, screen[i].y_org); } XFree(screen); } } XCloseDisplay(display); #else Screen* screen; Display* display; display = XOpenDisplay(NULL); if (!display) { WLog_ERR(TAG, "failed to open X display"); return -1; } screen = ScreenOfDisplay(display, DefaultScreen(display)); printf(" * [0] %dx%d\t+0+0\n", WidthOfScreen(screen), HeightOfScreen(screen)); XCloseDisplay(display); #endif return 0; } static BOOL xf_is_monitor_id_active(xfContext* xfc, UINT32 id) { int index; rdpSettings* settings = xfc->context.settings; if (!settings->NumMonitorIds) return TRUE; for (index = 0; index < settings->NumMonitorIds; index++) { if (settings->MonitorIds[index] == id) return TRUE; } return FALSE; } BOOL xf_detect_monitors(xfContext* xfc, UINT32* pMaxWidth, UINT32* pMaxHeight) { int i; int nmonitors = 0; int monitor_index = 0; BOOL primaryMonitorFound = FALSE; VIRTUAL_SCREEN* vscreen; rdpSettings* settings = xfc->context.settings; int mouse_x, mouse_y, _dummy_i; Window _dummy_w; int current_monitor = 0; Screen* screen; #ifdef WITH_XINERAMA int major, minor; XineramaScreenInfo* screenInfo = NULL; #endif vscreen = &xfc->vscreen; *pMaxWidth = settings->DesktopWidth; *pMaxHeight = settings->DesktopHeight; /* get mouse location */ if (!XQueryPointer(xfc->display, DefaultRootWindow(xfc->display), &_dummy_w, &_dummy_w, &mouse_x, &mouse_y, &_dummy_i, &_dummy_i, (void*) &_dummy_i)) mouse_x = mouse_y = 0; #ifdef WITH_XINERAMA if (XineramaQueryExtension(xfc->display, &major, &minor)) { if (XineramaIsActive(xfc->display)) { screenInfo = XineramaQueryScreens(xfc->display, &vscreen->nmonitors); if (vscreen->nmonitors > 16) vscreen->nmonitors = 0; if (vscreen->nmonitors) { for (i = 0; i < vscreen->nmonitors; i++) { vscreen->monitors[i].area.left = screenInfo[i].x_org; vscreen->monitors[i].area.top = screenInfo[i].y_org; vscreen->monitors[i].area.right = screenInfo[i].x_org + screenInfo[i].width - 1; vscreen->monitors[i].area.bottom = screenInfo[i].y_org + screenInfo[i].height - 1; /* Determine which monitor that the mouse cursor is on */ if ((mouse_x >= vscreen->monitors[i].area.left) && (mouse_x <= vscreen->monitors[i].area.right) && (mouse_y >= vscreen->monitors[i].area.top) && (mouse_y <= vscreen->monitors[i].area.bottom)) current_monitor = i; } } XFree(screenInfo); } } #endif xfc->fullscreenMonitors.top = xfc->fullscreenMonitors.bottom = xfc->fullscreenMonitors.left = xfc->fullscreenMonitors.right = 0; /* WORKAROUND: With Remote Application Mode - using NET_WM_WORKAREA * causes issues with the ability to fully size the window vertically * (the bottom of the window area is never updated). So, we just set * the workArea to match the full Screen width/height. */ if (settings->RemoteApplicationMode || !xf_GetWorkArea(xfc)) { xfc->workArea.x = 0; xfc->workArea.y = 0; xfc->workArea.width = WidthOfScreen(xfc->screen); xfc->workArea.height = HeightOfScreen(xfc->screen); } if (settings->Fullscreen) { *pMaxWidth = WidthOfScreen(xfc->screen); *pMaxHeight = HeightOfScreen(xfc->screen); } else if (settings->Workarea) { *pMaxWidth = xfc->workArea.width; *pMaxHeight = xfc->workArea.height; } else if (settings->PercentScreen) { /* If we have specific monitor information then limit the PercentScreen value * to only affect the current monitor vs. the entire desktop */ if (vscreen->nmonitors > 0) { *pMaxWidth = vscreen->monitors[current_monitor].area.right - vscreen->monitors[current_monitor].area.left + 1; *pMaxHeight = vscreen->monitors[current_monitor].area.bottom - vscreen->monitors[current_monitor].area.top + 1; if (settings->PercentScreenUseWidth) *pMaxWidth = ((vscreen->monitors[current_monitor].area.right - vscreen->monitors[current_monitor].area.left + 1) * settings->PercentScreen) / 100; if (settings->PercentScreenUseHeight) *pMaxHeight = ((vscreen->monitors[current_monitor].area.bottom - vscreen->monitors[current_monitor].area.top + 1) * settings->PercentScreen) / 100; } else { *pMaxWidth = xfc->workArea.width; *pMaxHeight = xfc->workArea.height; if (settings->PercentScreenUseWidth) *pMaxWidth = (xfc->workArea.width * settings->PercentScreen) / 100; if (settings->PercentScreenUseHeight) *pMaxHeight = (xfc->workArea.height * settings->PercentScreen) / 100; } } if (!settings->Fullscreen && !settings->Workarea && !settings->UseMultimon) return TRUE; /* If single monitor fullscreen OR workarea without remote app */ if ((settings->Fullscreen && !settings->UseMultimon && !settings->SpanMonitors) || (settings->Workarea && !settings->RemoteApplicationMode)) { /* If no monitors were specified on the command-line then set the current monitor as active */ if (!settings->NumMonitorIds) { settings->MonitorIds[0] = current_monitor; } /* Always sets number of monitors from command-line to just 1. * If the monitor is invalid then we will default back to current monitor * later as a fallback. So, there is no need to validate command-line entry here. */ settings->NumMonitorIds = 1; } /* Create array of all active monitors by taking into account monitors requested on the command-line */ for (i = 0; i < vscreen->nmonitors; i++) { if (!xf_is_monitor_id_active(xfc, i)) continue; settings->MonitorDefArray[nmonitors].x = vscreen->monitors[i].area.left; settings->MonitorDefArray[nmonitors].y = vscreen->monitors[i].area.top; settings->MonitorDefArray[nmonitors].width = MIN(vscreen->monitors[i].area.right - vscreen->monitors[i].area.left + 1, *pMaxWidth); settings->MonitorDefArray[nmonitors].height = MIN( vscreen->monitors[i].area.bottom - vscreen->monitors[i].area.top + 1, *pMaxHeight); settings->MonitorDefArray[nmonitors].orig_screen = i; if (i == settings->MonitorIds[0]) { settings->MonitorDefArray[nmonitors].is_primary = TRUE; primaryMonitorFound = TRUE; } nmonitors++; } /* If no monitor is active(bogus command-line monitor specification) - then lets try to fallback to go fullscreen on the current monitor only */ if (nmonitors == 0 && vscreen->nmonitors > 0) { settings->MonitorDefArray[0].x = vscreen->monitors[current_monitor].area.left; settings->MonitorDefArray[0].y = vscreen->monitors[current_monitor].area.top; settings->MonitorDefArray[0].width = MIN( vscreen->monitors[current_monitor].area.right - vscreen->monitors[current_monitor].area.left + 1, *pMaxWidth); settings->MonitorDefArray[0].height = MIN( vscreen->monitors[current_monitor].area.bottom - vscreen->monitors[current_monitor].area.top + 1, *pMaxHeight); settings->MonitorDefArray[0].orig_screen = current_monitor; nmonitors = 1; } settings->MonitorCount = nmonitors; /* If we have specific monitor information */ if (settings->MonitorCount) { /* Initialize bounding rectangle for all monitors */ int vX = settings->MonitorDefArray[0].x; int vY = settings->MonitorDefArray[0].y; int vR = vX + settings->MonitorDefArray[0].width; int vB = vY + settings->MonitorDefArray[0].height; xfc->fullscreenMonitors.top = xfc->fullscreenMonitors.bottom = xfc->fullscreenMonitors.left = xfc->fullscreenMonitors.right = settings->MonitorDefArray[0].orig_screen; /* Calculate bounding rectangle around all monitors to be used AND * also set the Xinerama indices which define left/top/right/bottom monitors. */ for (i = 1; i < settings->MonitorCount; i++) { /* does the same as gdk_rectangle_union */ int destX = MIN(vX, settings->MonitorDefArray[i].x); int destY = MIN(vY, settings->MonitorDefArray[i].y); int destR = MAX(vR, settings->MonitorDefArray[i].x + settings->MonitorDefArray[i].width); int destB = MAX(vB, settings->MonitorDefArray[i].y + settings->MonitorDefArray[i].height); if (vX != destX) xfc->fullscreenMonitors.left = settings->MonitorDefArray[i].orig_screen; if (vY != destY) xfc->fullscreenMonitors.top = settings->MonitorDefArray[i].orig_screen; if (vR != destR) xfc->fullscreenMonitors.right = settings->MonitorDefArray[i].orig_screen; if (vB != destB) xfc->fullscreenMonitors.bottom = settings->MonitorDefArray[i].orig_screen; vX = destX; vY = destY; vR = destR; vB = destB; } settings->DesktopPosX = vX; settings->DesktopPosY = vY; vscreen->area.left = 0; vscreen->area.right = vR - vX - 1; vscreen->area.top = 0; vscreen->area.bottom = vB - vY - 1; if (settings->Workarea) { vscreen->area.top = xfc->workArea.y; vscreen->area.bottom = xfc->workArea.height + xfc->workArea.y - 1; } if (!primaryMonitorFound) { /* If we have a command line setting we should use it */ if (settings->NumMonitorIds) { /* The first monitor is the first in the setting which should be used */ monitor_index = settings->MonitorIds[0]; } else { /* This is the same as when we would trust the Xinerama results.. and set the monitor index to zero. The monitor listed with /monitor-list on index zero is always the primary */ screen = DefaultScreenOfDisplay(xfc->display); monitor_index = XScreenNumberOfScreen(screen); } int j = monitor_index; /* If the "default" monitor is not 0,0 use it */ if (settings->MonitorDefArray[j].x != 0 || settings->MonitorDefArray[j].y != 0) { settings->MonitorDefArray[j].is_primary = TRUE; settings->MonitorLocalShiftX = settings->MonitorDefArray[j].x; settings->MonitorLocalShiftY = settings->MonitorDefArray[j].y; primaryMonitorFound = TRUE; } else { /* Lets try to see if there is a monitor with a 0,0 coordinate and use it as a fallback*/ for (i = 0; i < settings->MonitorCount; i++) { if (!primaryMonitorFound && settings->MonitorDefArray[i].x == 0 && settings->MonitorDefArray[i].y == 0) { settings->MonitorDefArray[i].is_primary = TRUE; settings->MonitorLocalShiftX = settings->MonitorDefArray[i].x; settings->MonitorLocalShiftY = settings->MonitorDefArray[i].y; primaryMonitorFound = TRUE; } } } } /* Subtract monitor shift from monitor variables for server-side use. * We maintain monitor shift value as Window requires the primary monitor to have a coordinate of 0,0 * In some X configurations, no monitor may have a coordinate of 0,0. This can also be happen if the user * requests specific monitors from the command-line as well. So, we make sure to translate our primary monitor's * upper-left corner to 0,0 on the server. */ for (i = 0; i < settings->MonitorCount; i++) { settings->MonitorDefArray[i].x = settings->MonitorDefArray[i].x - settings->MonitorLocalShiftX; settings->MonitorDefArray[i].y = settings->MonitorDefArray[i].y - settings->MonitorLocalShiftY; } /* Set the desktop width and height according to the bounding rectangle around the active monitors */ *pMaxWidth = vscreen->area.right - vscreen->area.left + 1; *pMaxHeight = vscreen->area.bottom - vscreen->area.top + 1; } /* some 2008 server freeze at logon if we announce support for monitor layout PDU with * #monitors < 2. So let's announce it only if we have more than 1 monitor. */ if (settings->MonitorCount) settings->SupportMonitorLayoutPdu = TRUE; return TRUE; }