88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* X11 Server Graphical Updates
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*
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* Copyright 2013 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <winpr/crt.h>
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#include <winpr/synch.h>
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#include <winpr/sysinfo.h>
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#include "xf_peer.h"
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#include "xf_encode.h"
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#include "xf_update.h"
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void* xf_update_thread(void* param)
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{
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xfInfo* xfi;
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HANDLE event;
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XEvent xevent;
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DWORD beg, end;
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DWORD diff, rate;
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xfPeerContext* xfp;
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freerdp_peer* client;
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int x, y, width, height;
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XDamageNotifyEvent* notify;
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client = (freerdp_peer*) param;
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xfp = (xfPeerContext*) client->context;
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xfi = xfp->info;
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rate = 1000 / xfp->fps;
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event = CreateFileDescriptorEvent(NULL, FALSE, FALSE, xfi->xfds);
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while (WaitForSingleObject(event, INFINITE) == WAIT_OBJECT_0)
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{
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beg = GetTickCount();
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while (XPending(xfi->display) > 0)
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{
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ZeroMemory(&xevent, sizeof(xevent));
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XNextEvent(xfi->display, &xevent);
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if (xevent.type == xfi->xdamage_notify_event)
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{
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notify = (XDamageNotifyEvent*) &xevent;
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x = notify->area.x;
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y = notify->area.y;
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width = notify->area.width;
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height = notify->area.height;
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WaitForSingleObject(xfp->mutex, INFINITE);
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gdi_InvalidateRegion(xfp->hdc, x, y, width, height);
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ReleaseMutex(xfp->mutex);
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xf_xdamage_subtract_region(xfp, x, y, width, height);
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}
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}
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end = GetTickCount();
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diff = end - beg;
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if (diff < rate)
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Sleep(rate - diff);
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}
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return NULL;
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}
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