mirror of
https://github.com/FreeRDP/FreeRDP.git
synced 2024-11-27 03:44:06 +08:00
371 lines
8.3 KiB
C
371 lines
8.3 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Client
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* FreeRDP Windows Server
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*
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* Copyright 2012 Corey Clayton <can.of.tuna@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 <stdlib.h>
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#include <winpr/tchar.h>
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#include <winpr/windows.h>
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#include "wf_info.h"
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#include "wf_update.h"
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#include "wf_mirage.h"
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#include "wf_dxgi.h"
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static wfInfo* wfInfoInstance = NULL;
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static int _IDcount = 0;
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int wf_info_lock(wfInfo* wfi)
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{
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DWORD dRes;
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dRes = WaitForSingleObject(wfi->mutex, INFINITE);
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switch (dRes)
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{
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case WAIT_ABANDONED:
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case WAIT_OBJECT_0:
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return TRUE;
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break;
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case WAIT_TIMEOUT:
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return FALSE;
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break;
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case WAIT_FAILED:
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printf("wf_info_lock failed with 0x%08X\n", GetLastError());
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return -1;
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break;
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}
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return -1;
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}
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int wf_info_try_lock(wfInfo* wfi, DWORD dwMilliseconds)
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{
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DWORD dRes;
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dRes = WaitForSingleObject(wfi->mutex, dwMilliseconds);
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switch (dRes)
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{
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case WAIT_ABANDONED:
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case WAIT_OBJECT_0:
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return TRUE;
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break;
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case WAIT_TIMEOUT:
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return FALSE;
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break;
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case WAIT_FAILED:
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printf("wf_info_try_lock failed with 0x%08X\n", GetLastError());
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return -1;
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break;
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}
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return -1;
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}
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int wf_info_unlock(wfInfo* wfi)
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{
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if (ReleaseMutex(wfi->mutex) == 0)
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{
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printf("wf_info_unlock failed with 0x%08X\n", GetLastError());
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return -1;
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}
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return TRUE;
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}
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wfInfo* wf_info_init()
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{
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wfInfo* wfi;
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wfi = (wfInfo*) malloc(sizeof(wfInfo));
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ZeroMemory(wfi, sizeof(wfInfo));
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if (wfi != NULL)
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{
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HKEY hKey;
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LONG status;
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DWORD dwType;
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DWORD dwSize;
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DWORD dwValue;
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wfi->mutex = CreateMutex(NULL, FALSE, NULL);
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if (wfi->mutex == NULL)
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{
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_tprintf(_T("CreateMutex error: %d\n"), GetLastError());
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}
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wfi->updateSemaphore = CreateSemaphore(NULL, 0, 32, NULL);
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wfi->updateThread = CreateThread(NULL, 0, wf_update_thread, wfi, CREATE_SUSPENDED, NULL);
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if (!wfi->updateThread)
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{
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_tprintf(_T("Failed to create update thread\n"));
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}
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wfi->peers = (freerdp_peer**) malloc(sizeof(freerdp_peer*) * WF_INFO_MAXPEERS);
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memset(wfi->peers, 0, sizeof(freerdp_peer*) * WF_INFO_MAXPEERS);
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//Set FPS
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wfi->framesPerSecond = WF_INFO_DEFAULT_FPS;
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status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("Software\\FreeRDP\\Server"), 0, KEY_READ | KEY_WOW64_64KEY, &hKey);
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if (status == ERROR_SUCCESS)
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{
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if (RegQueryValueEx(hKey, _T("FramesPerSecond"), NULL, &dwType, (BYTE*) &dwValue, &dwSize) == ERROR_SUCCESS)
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wfi->framesPerSecond = dwValue;
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}
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RegCloseKey(hKey);
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//Set input toggle
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wfi->input_disabled = FALSE;
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status = RegOpenKeyEx(HKEY_LOCAL_MACHINE, _T("Software\\FreeRDP\\Server"), 0, KEY_READ | KEY_WOW64_64KEY, &hKey);
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if (status == ERROR_SUCCESS)
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{
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if (RegQueryValueEx(hKey, _T("DisableInput"), NULL, &dwType, (BYTE*) &dwValue, &dwSize) == ERROR_SUCCESS)
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{
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if (dwValue != 0)
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wfi->input_disabled = TRUE;
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}
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}
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RegCloseKey(hKey);
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}
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return wfi;
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}
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wfInfo* wf_info_get_instance()
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{
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if (wfInfoInstance == NULL)
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wfInfoInstance = wf_info_init();
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return wfInfoInstance;
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}
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void wf_info_peer_register(wfInfo* wfi, wfPeerContext* context)
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{
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if (wf_info_lock(wfi) > 0)
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{
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int i;
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int peerId;
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if (wfi->peerCount == WF_INFO_MAXPEERS)
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{
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context->socketClose = TRUE;
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wf_info_unlock(wfi);
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return;
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}
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context->info = wfi;
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context->updateEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
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//get the offset of the top left corner of selected screen
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EnumDisplayMonitors(NULL, NULL, wf_info_monEnumCB, 0);
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_IDcount = 0;
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#ifdef WITH_DXGI_1_2
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if (wfi->peerCount == 0)
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wf_dxgi_init(wfi);
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#else
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if (wf_mirror_driver_activate(wfi) == FALSE)
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{
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context->socketClose = TRUE;
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wf_info_unlock(wfi);
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return;
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}
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#endif
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//look trhough the array of peers until an empty slot
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for(i=0; i<WF_INFO_MAXPEERS; ++i)
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{
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//empty index will be our peer id
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if (wfi->peers[i] == NULL)
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{
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peerId = i;
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break;
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}
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}
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wfi->peers[peerId] = ((rdpContext*) context)->peer;
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wfi->peers[peerId]->pId = peerId;
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wfi->peerCount++;
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printf("Registering Peer: id=%d #=%d\n", peerId, wfi->peerCount);
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wf_info_unlock(wfi);
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wfreerdp_server_peer_callback_event(peerId, WF_SRV_CALLBACK_EVENT_CONNECT);
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}
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}
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void wf_info_peer_unregister(wfInfo* wfi, wfPeerContext* context)
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{
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if (wf_info_lock(wfi) > 0)
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{
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int peerId;
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peerId = ((rdpContext*) context)->peer->pId;
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wfi->peers[peerId] = NULL;
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wfi->peerCount--;
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CloseHandle(context->updateEvent);
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printf("Unregistering Peer: id=%d, #=%d\n", peerId, wfi->peerCount);
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#ifdef WITH_DXGI_1_2
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if (wfi->peerCount == 0)
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wf_dxgi_cleanup(wfi);
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#endif
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wf_info_unlock(wfi);
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wfreerdp_server_peer_callback_event(peerId, WF_SRV_CALLBACK_EVENT_DISCONNECT);
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}
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}
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BOOL wf_info_have_updates(wfInfo* wfi)
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{
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#ifdef WITH_DXGI_1_2
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if(wfi->framesWaiting == 0)
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return FALSE;
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#else
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if (wfi->nextUpdate == wfi->lastUpdate)
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return FALSE;
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#endif
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return TRUE;
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}
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void wf_info_update_changes(wfInfo* wfi)
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{
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#ifdef WITH_DXGI_1_2
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wf_dxgi_nextFrame(wfi, wfi->framesPerSecond * 1000);
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#else
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GETCHANGESBUF* buf;
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buf = (GETCHANGESBUF*) wfi->changeBuffer;
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wfi->nextUpdate = buf->buffer->counter;
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#endif
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}
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void wf_info_find_invalid_region(wfInfo* wfi)
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{
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#ifdef WITH_DXGI_1_2
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wf_dxgi_getInvalidRegion(&wfi->invalid);
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#else
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int i;
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GETCHANGESBUF* buf;
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buf = (GETCHANGESBUF*) wfi->changeBuffer;
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for (i = wfi->lastUpdate; i != wfi->nextUpdate; i = (i + 1) % MAXCHANGES_BUF)
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{
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LPRECT lpR = &buf->buffer->pointrect[i].rect;
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//need to make sure we only get updates from the selected screen
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if ( (lpR->left >= wfi->servscreen_xoffset) &&
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(lpR->right <= (wfi->servscreen_xoffset + wfi->servscreen_width) ) &&
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(lpR->top >= wfi->servscreen_yoffset) &&
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(lpR->bottom <= (wfi->servscreen_yoffset + wfi->servscreen_height) ) )
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{
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UnionRect(&wfi->invalid, &wfi->invalid, lpR);
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}
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else
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{
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continue;
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}
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}
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#endif
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if (wfi->invalid.left < 0)
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wfi->invalid.left = 0;
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if (wfi->invalid.top < 0)
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wfi->invalid.top = 0;
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if (wfi->invalid.right >= wfi->servscreen_width)
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wfi->invalid.right = wfi->servscreen_width - 1;
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if (wfi->invalid.bottom >= wfi->servscreen_height)
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wfi->invalid.bottom = wfi->servscreen_height - 1;
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//printf("invalid region: (%d, %d), (%d, %d)\n", wfi->invalid.left, wfi->invalid.top, wfi->invalid.right, wfi->invalid.bottom);
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}
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void wf_info_clear_invalid_region(wfInfo* wfi)
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{
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wfi->lastUpdate = wfi->nextUpdate;
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SetRectEmpty(&wfi->invalid);
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}
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void wf_info_invalidate_full_screen(wfInfo* wfi)
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{
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SetRect(&wfi->invalid, 0, 0, wfi->servscreen_width, wfi->servscreen_height);
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}
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BOOL wf_info_have_invalid_region(wfInfo* wfi)
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{
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return IsRectEmpty(&wfi->invalid);
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}
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void wf_info_getScreenData(wfInfo* wfi, long* width, long* height, BYTE** pBits, int* pitch)
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{
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*width = (wfi->invalid.right - wfi->invalid.left);
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*height = (wfi->invalid.bottom - wfi->invalid.top);
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#ifdef WITH_DXGI_1_2
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wf_dxgi_getPixelData(wfi, pBits, pitch, &wfi->invalid);
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#else
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{
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long offset;
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GETCHANGESBUF* changes;
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changes = (GETCHANGESBUF*) wfi->changeBuffer;
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*width += 1;
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*height += 1;
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offset = (4 * wfi->invalid.left) + (wfi->invalid.top * wfi->virtscreen_width * 4);
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*pBits = ((BYTE*) (changes->Userbuffer)) + offset;
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*pitch = wfi->virtscreen_width * 4;
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}
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#endif
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}
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BOOL CALLBACK wf_info_monEnumCB(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData)
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{
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wfInfo * wfi;
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wfi = wf_info_get_instance();
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if(_IDcount == wfi->screenID)
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{
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wfi->servscreen_xoffset = lprcMonitor->left;
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wfi->servscreen_yoffset = lprcMonitor->top;
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}
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_IDcount++;
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return TRUE;
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}
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