721 lines
16 KiB
C
721 lines
16 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* X11 Peer
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*
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* Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <sys/select.h>
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#include <freerdp/locale/keyboard.h>
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#include <freerdp/codec/color.h>
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#include <freerdp/utils/file.h>
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#include <freerdp/utils/sleep.h>
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#include <freerdp/utils/memory.h>
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#include <freerdp/utils/thread.h>
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extern char* xf_pcap_file;
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extern boolean xf_pcap_dump_realtime;
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#include "xf_event.h"
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#include "xf_input.h"
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#include "xf_encode.h"
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#include "xf_peer.h"
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#ifdef WITH_XDAMAGE
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void xf_xdamage_init(xfInfo* xfi)
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{
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Bool pixmaps;
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int damage_event;
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int damage_error;
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int major, minor;
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XGCValues values;
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if (XShmQueryExtension(xfi->display) != False)
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{
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XShmQueryVersion(xfi->display, &major, &minor, &pixmaps);
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if (pixmaps != True)
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{
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printf("XShmQueryVersion failed\n");
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return;
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}
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}
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else
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{
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printf("XShmQueryExtension failed\n");
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return;
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}
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if (XDamageQueryExtension(xfi->display, &damage_event, &damage_error) == 0)
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{
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printf("XDamageQueryExtension failed\n");
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return;
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}
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XDamageQueryVersion(xfi->display, &major, &minor);
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if (XDamageQueryVersion(xfi->display, &major, &minor) == 0)
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{
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printf("XDamageQueryVersion failed\n");
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return;
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}
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else if (major < 1)
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{
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printf("XDamageQueryVersion failed: major:%d minor:%d\n", major, minor);
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return;
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}
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xfi->xdamage_notify_event = damage_event + XDamageNotify;
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xfi->xdamage = XDamageCreate(xfi->display, xfi->root_window, XDamageReportDeltaRectangles);
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if (xfi->xdamage == None)
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{
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printf("XDamageCreate failed\n");
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return;
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}
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#ifdef WITH_XFIXES
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xfi->xdamage_region = XFixesCreateRegion(xfi->display, NULL, 0);
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if (xfi->xdamage_region == None)
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{
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printf("XFixesCreateRegion failed\n");
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XDamageDestroy(xfi->display, xfi->xdamage);
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xfi->xdamage = None;
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return;
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}
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#endif
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values.subwindow_mode = IncludeInferiors;
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xfi->xdamage_gc = XCreateGC(xfi->display, xfi->root_window, GCSubwindowMode, &values);
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XSetFunction(xfi->display, xfi->xdamage_gc, GXcopy);
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}
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#endif
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void xf_xshm_init(xfInfo* xfi)
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{
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xfi->fb_shm_info.shmid = -1;
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xfi->fb_shm_info.shmaddr = (char*) -1;
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xfi->fb_image = XShmCreateImage(xfi->display, xfi->visual, xfi->depth,
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ZPixmap, NULL, &(xfi->fb_shm_info), xfi->width, xfi->height);
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if (xfi->fb_image == NULL)
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{
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printf("XShmCreateImage failed\n");
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return;
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}
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xfi->fb_shm_info.shmid = shmget(IPC_PRIVATE,
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xfi->fb_image->bytes_per_line * xfi->fb_image->height, IPC_CREAT | 0600);
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if (xfi->fb_shm_info.shmid == -1)
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{
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printf("shmget failed\n");
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return;
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}
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xfi->fb_shm_info.readOnly = False;
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xfi->fb_shm_info.shmaddr = shmat(xfi->fb_shm_info.shmid, 0, 0);
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xfi->fb_image->data = xfi->fb_shm_info.shmaddr;
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if (xfi->fb_shm_info.shmaddr == ((char*) -1))
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{
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printf("shmat failed\n");
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return;
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}
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XShmAttach(xfi->display, &(xfi->fb_shm_info));
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XSync(xfi->display, False);
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shmctl(xfi->fb_shm_info.shmid, IPC_RMID, 0);
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xfi->fb_pixmap = XShmCreatePixmap(xfi->display,
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xfi->root_window, xfi->fb_image->data, &(xfi->fb_shm_info),
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xfi->fb_image->width, xfi->fb_image->height, xfi->fb_image->depth);
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}
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xfInfo* xf_info_init()
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{
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int i;
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xfInfo* xfi;
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int pf_count;
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int vi_count;
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XVisualInfo* vi;
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XVisualInfo* vis;
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XVisualInfo template;
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XPixmapFormatValues* pf;
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XPixmapFormatValues* pfs;
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xfi = xnew(xfInfo);
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//xfi->use_xshm = true;
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xfi->display = XOpenDisplay(NULL);
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XInitThreads();
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if (xfi->display == NULL)
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{
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printf("failed to open display: %s\n", XDisplayName(NULL));
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exit(1);
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}
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xfi->xfds = ConnectionNumber(xfi->display);
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xfi->number = DefaultScreen(xfi->display);
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xfi->screen = ScreenOfDisplay(xfi->display, xfi->number);
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xfi->depth = DefaultDepthOfScreen(xfi->screen);
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xfi->width = WidthOfScreen(xfi->screen);
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xfi->height = HeightOfScreen(xfi->screen);
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xfi->root_window = DefaultRootWindow(xfi->display);
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pfs = XListPixmapFormats(xfi->display, &pf_count);
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if (pfs == NULL)
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{
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printf("XListPixmapFormats failed\n");
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exit(1);
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}
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for (i = 0; i < pf_count; i++)
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{
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pf = pfs + i;
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if (pf->depth == xfi->depth)
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{
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xfi->bpp = pf->bits_per_pixel;
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xfi->scanline_pad = pf->scanline_pad;
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break;
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}
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}
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XFree(pfs);
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memset(&template, 0, sizeof(template));
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template.class = TrueColor;
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template.screen = xfi->number;
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vis = XGetVisualInfo(xfi->display, VisualClassMask | VisualScreenMask, &template, &vi_count);
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if (vis == NULL)
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{
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printf("XGetVisualInfo failed\n");
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exit(1);
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}
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for (i = 0; i < vi_count; i++)
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{
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vi = vis + i;
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if (vi->depth == xfi->depth)
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{
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xfi->visual = vi->visual;
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break;
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}
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}
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XFree(vis);
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xfi->clrconv = freerdp_clrconv_new(CLRCONV_ALPHA | CLRCONV_INVERT);
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XSelectInput(xfi->display, xfi->root_window, SubstructureNotifyMask);
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#ifdef WITH_XDAMAGE
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xf_xdamage_init(xfi);
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#endif
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xf_xshm_init(xfi);
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xfi->bytesPerPixel = 4;
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freerdp_keyboard_init(0);
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return xfi;
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}
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void xf_peer_context_new(freerdp_peer* client, xfPeerContext* context)
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{
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context->info = xf_info_init();
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context->rfx_context = rfx_context_new();
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context->rfx_context->mode = RLGR3;
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context->rfx_context->width = context->info->width;
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context->rfx_context->height = context->info->height;
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rfx_context_set_pixel_format(context->rfx_context, RFX_PIXEL_FORMAT_BGRA);
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context->s = stream_new(65536);
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}
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void xf_peer_context_free(freerdp_peer* client, xfPeerContext* context)
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{
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if (context)
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{
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stream_free(context->s);
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rfx_context_free(context->rfx_context);
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xfree(context);
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}
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}
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void xf_peer_init(freerdp_peer* client)
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{
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xfInfo* xfi;
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xfPeerContext* xfp;
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client->context_size = sizeof(xfPeerContext);
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client->ContextNew = (psPeerContextNew) xf_peer_context_new;
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client->ContextFree = (psPeerContextFree) xf_peer_context_free;
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freerdp_peer_context_new(client);
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xfp = (xfPeerContext*) client->context;
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xfp->fps = 24;
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xfp->thread = 0;
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xfp->activations = 0;
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xfp->event_queue = xf_event_queue_new();
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xfi = xfp->info;
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xfp->hdc = gdi_CreateDC(xfi->clrconv, xfi->bpp);
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pthread_mutex_init(&(xfp->mutex), NULL);
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}
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STREAM* xf_peer_stream_init(xfPeerContext* context)
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{
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stream_clear(context->s);
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stream_set_pos(context->s, 0);
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return context->s;
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}
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void xf_peer_live_rfx(freerdp_peer* client)
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{
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xfPeerContext* xfp = (xfPeerContext*) client->context;
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if (xfp->activations == 1)
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pthread_create(&(xfp->thread), 0, xf_monitor_updates, (void*) client);
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}
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static boolean xf_peer_sleep_tsdiff(uint32 *old_sec, uint32 *old_usec, uint32 new_sec, uint32 new_usec)
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{
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sint32 sec, usec;
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if (*old_sec == 0 && *old_usec == 0)
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{
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*old_sec = new_sec;
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*old_usec = new_usec;
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return true;
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}
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sec = new_sec - *old_sec;
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usec = new_usec - *old_usec;
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if (sec < 0 || (sec == 0 && usec < 0))
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{
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printf("Invalid time stamp detected.\n");
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return false;
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}
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*old_sec = new_sec;
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*old_usec = new_usec;
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while (usec < 0)
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{
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usec += 1000000;
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sec--;
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}
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if (sec > 0)
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freerdp_sleep(sec);
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if (usec > 0)
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freerdp_usleep(usec);
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return true;
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}
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void xf_peer_dump_rfx(freerdp_peer* client)
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{
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STREAM* s;
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uint32 prev_seconds;
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uint32 prev_useconds;
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rdpUpdate* update;
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rdpPcap* pcap_rfx;
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pcap_record record;
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s = stream_new(512);
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update = client->update;
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client->update->pcap_rfx = pcap_open(xf_pcap_file, false);
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pcap_rfx = client->update->pcap_rfx;
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if (pcap_rfx == NULL)
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return;
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prev_seconds = prev_useconds = 0;
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while (pcap_has_next_record(pcap_rfx))
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{
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pcap_get_next_record_header(pcap_rfx, &record);
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s->data = xrealloc(s->data, record.length);
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record.data = s->data;
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s->size = record.length;
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pcap_get_next_record_content(pcap_rfx, &record);
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s->p = s->data + s->size;
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if (xf_pcap_dump_realtime && xf_peer_sleep_tsdiff(&prev_seconds, &prev_useconds, record.header.ts_sec, record.header.ts_usec) == false)
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break;
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update->SurfaceCommand(update->context, s);
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}
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}
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void xf_peer_rfx_update(freerdp_peer* client, int x, int y, int width, int height)
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{
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STREAM* s;
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uint8* data;
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xfInfo* xfi;
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RFX_RECT rect;
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XImage* image;
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rdpUpdate* update;
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xfPeerContext* xfp;
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SURFACE_BITS_COMMAND* cmd;
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update = client->update;
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xfp = (xfPeerContext*) client->context;
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cmd = &update->surface_bits_command;
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xfi = xfp->info;
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if (width * height <= 0)
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return;
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s = xf_peer_stream_init(xfp);
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if (xfi->use_xshm)
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{
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/**
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* Passing an offset source rectangle to rfx_compose_message()
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* leads to protocol errors, so offset the data pointer instead.
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*/
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rect.x = 0;
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rect.y = 0;
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rect.width = width;
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rect.height = height;
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image = xf_snapshot(xfp, x, y, width, height);
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data = (uint8*) image->data;
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data = &data[(y * image->bytes_per_line) + (x * image->bits_per_pixel / 8)];
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rfx_compose_message(xfp->rfx_context, s, &rect, 1, data,
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width, height, image->bytes_per_line);
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cmd->destLeft = x;
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cmd->destTop = y;
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cmd->destRight = x + width;
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cmd->destBottom = y + height;
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}
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else
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{
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rect.x = 0;
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rect.y = 0;
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rect.width = width;
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rect.height = height;
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image = xf_snapshot(xfp, x, y, width, height);
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rfx_compose_message(xfp->rfx_context, s, &rect, 1,
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(uint8*) image->data, width, height, width * xfi->bytesPerPixel);
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cmd->destLeft = x;
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cmd->destTop = y;
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cmd->destRight = x + width;
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cmd->destBottom = y + height;
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XDestroyImage(image);
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}
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cmd->bpp = 32;
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cmd->codecID = client->settings->rfx_codec_id;
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cmd->width = width;
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cmd->height = height;
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cmd->bitmapDataLength = stream_get_length(s);
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cmd->bitmapData = stream_get_head(s);
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update->SurfaceBits(update->context, cmd);
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}
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boolean xf_peer_get_fds(freerdp_peer* client, void** rfds, int* rcount)
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{
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xfPeerContext* xfp = (xfPeerContext*) client->context;
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if (xfp->event_queue->pipe_fd[0] == -1)
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return true;
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rfds[*rcount] = (void *)(long) xfp->event_queue->pipe_fd[0];
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(*rcount)++;
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return true;
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}
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boolean xf_peer_check_fds(freerdp_peer* client)
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{
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xfInfo* xfi;
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xfEvent* event;
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xfPeerContext* xfp;
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HGDI_RGN invalid_region;
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xfp = (xfPeerContext*) client->context;
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xfi = xfp->info;
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if (xfp->activated == false)
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return true;
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event = xf_event_peek(xfp->event_queue);
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if (event != NULL)
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{
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if (event->type == XF_EVENT_TYPE_REGION)
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{
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xfEventRegion* region = (xfEventRegion*) xf_event_pop(xfp->event_queue);
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gdi_InvalidateRegion(xfp->hdc, region->x, region->y, region->width, region->height);
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xf_event_region_free(region);
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}
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else if (event->type == XF_EVENT_TYPE_FRAME_TICK)
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{
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event = xf_event_pop(xfp->event_queue);
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invalid_region = xfp->hdc->hwnd->invalid;
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if (invalid_region->null == false)
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{
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xf_peer_rfx_update(client, invalid_region->x, invalid_region->y,
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invalid_region->w, invalid_region->h);
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}
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invalid_region->null = 1;
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xfp->hdc->hwnd->ninvalid = 0;
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xf_event_free(event);
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}
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}
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return true;
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}
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boolean xf_peer_capabilities(freerdp_peer* client)
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{
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return true;
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}
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boolean xf_peer_post_connect(freerdp_peer* client)
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{
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xfInfo* xfi;
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xfPeerContext* xfp;
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xfp = (xfPeerContext*) client->context;
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xfi = (xfInfo*) xfp->info;
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|
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/**
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* This callback is called when the entire connection sequence is done, i.e. we've received the
|
|
* Font List PDU from the client and sent out the Font Map PDU.
|
|
* The server may start sending graphics output and receiving keyboard/mouse input after this
|
|
* callback returns.
|
|
*/
|
|
printf("Client %s is activated", client->hostname);
|
|
if (client->settings->autologon)
|
|
{
|
|
printf(" and wants to login automatically as %s\\%s",
|
|
client->settings->domain ? client->settings->domain : "",
|
|
client->settings->username);
|
|
|
|
/* A real server may perform OS login here if NLA is not executed previously. */
|
|
}
|
|
printf("\n");
|
|
|
|
printf("Client requested desktop: %dx%dx%d\n",
|
|
client->settings->width, client->settings->height, client->settings->color_depth);
|
|
|
|
/* A real server should tag the peer as activated here and start sending updates in mainloop. */
|
|
|
|
client->settings->width = xfi->width;
|
|
client->settings->height = xfi->height;
|
|
|
|
client->update->DesktopResize(client->update->context);
|
|
xfp->activated = false;
|
|
|
|
/* Return false here would stop the execution of the peer mainloop. */
|
|
return true;
|
|
}
|
|
|
|
boolean xf_peer_activate(freerdp_peer* client)
|
|
{
|
|
xfPeerContext* xfp = (xfPeerContext*) client->context;
|
|
|
|
rfx_context_reset(xfp->rfx_context);
|
|
xfp->activated = true;
|
|
|
|
if (xf_pcap_file != NULL)
|
|
{
|
|
client->update->dump_rfx = true;
|
|
xf_peer_dump_rfx(client);
|
|
}
|
|
else
|
|
{
|
|
xf_peer_live_rfx(client);
|
|
xfp->activations++;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void* xf_peer_main_loop(void* arg)
|
|
{
|
|
int i;
|
|
int fds;
|
|
int max_fds;
|
|
int rcount;
|
|
void* rfds[32];
|
|
fd_set rfds_set;
|
|
rdpSettings* settings;
|
|
char* server_file_path;
|
|
freerdp_peer* client = (freerdp_peer*) arg;
|
|
xfPeerContext* xfp;
|
|
|
|
memset(rfds, 0, sizeof(rfds));
|
|
|
|
printf("We've got a client %s\n", client->hostname);
|
|
|
|
xf_peer_init(client);
|
|
xfp = (xfPeerContext*) client->context;
|
|
|
|
settings = client->settings;
|
|
|
|
/* Initialize the real server settings here */
|
|
|
|
if (settings->development_mode)
|
|
{
|
|
server_file_path = freerdp_construct_path(settings->development_path, "server/X11");
|
|
}
|
|
else
|
|
{
|
|
server_file_path = freerdp_construct_path(settings->config_path, "server");
|
|
|
|
if (!freerdp_check_file_exists(server_file_path))
|
|
freerdp_mkdir(server_file_path);
|
|
}
|
|
|
|
settings->cert_file = freerdp_construct_path(server_file_path, "server.crt");
|
|
settings->privatekey_file = freerdp_construct_path(server_file_path, "server.key");
|
|
|
|
settings->nla_security = false;
|
|
|
|
settings->rfx_codec = true;
|
|
|
|
client->Capabilities = xf_peer_capabilities;
|
|
client->PostConnect = xf_peer_post_connect;
|
|
client->Activate = xf_peer_activate;
|
|
|
|
xf_input_register_callbacks(client->input);
|
|
|
|
client->Initialize(client);
|
|
|
|
while (1)
|
|
{
|
|
rcount = 0;
|
|
|
|
if (client->GetFileDescriptor(client, rfds, &rcount) != true)
|
|
{
|
|
printf("Failed to get FreeRDP file descriptor\n");
|
|
break;
|
|
}
|
|
if (xf_peer_get_fds(client, rfds, &rcount) != true)
|
|
{
|
|
printf("Failed to get xfreerdp file descriptor\n");
|
|
break;
|
|
}
|
|
|
|
max_fds = 0;
|
|
FD_ZERO(&rfds_set);
|
|
|
|
for (i = 0; i < rcount; i++)
|
|
{
|
|
fds = (int)(long)(rfds[i]);
|
|
|
|
if (fds > max_fds)
|
|
max_fds = fds;
|
|
|
|
FD_SET(fds, &rfds_set);
|
|
}
|
|
|
|
if (max_fds == 0)
|
|
break;
|
|
|
|
if (select(max_fds + 1, &rfds_set, NULL, NULL, NULL) == -1)
|
|
{
|
|
/* these are not really errors */
|
|
if (!((errno == EAGAIN) ||
|
|
(errno == EWOULDBLOCK) ||
|
|
(errno == EINPROGRESS) ||
|
|
(errno == EINTR))) /* signal occurred */
|
|
{
|
|
printf("select failed\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (client->CheckFileDescriptor(client) != true)
|
|
{
|
|
printf("Failed to check freerdp file descriptor\n");
|
|
break;
|
|
}
|
|
if ((xf_peer_check_fds(client)) != true)
|
|
{
|
|
printf("Failed to check xfreerdp file descriptor\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
printf("Client %s disconnected.\n", client->hostname);
|
|
|
|
client->Disconnect(client);
|
|
|
|
pthread_cancel(xfp->thread);
|
|
pthread_cancel(xfp->frame_rate_thread);
|
|
|
|
pthread_join(xfp->thread, NULL);
|
|
pthread_join(xfp->frame_rate_thread, NULL);
|
|
|
|
freerdp_peer_context_free(client);
|
|
freerdp_peer_free(client);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void xf_peer_accepted(freerdp_listener* instance, freerdp_peer* client)
|
|
{
|
|
pthread_t th;
|
|
|
|
pthread_create(&th, 0, xf_peer_main_loop, client);
|
|
pthread_detach(th);
|
|
}
|