wcorecom.cpp
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上传日期:2007-06-06
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文件大小:11k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #include "hlxclib/windows.h"
- #include "hxcom.h"
- #include "hxtypes.h"
- #include "hxresult.h"
- #include "hxcomm.h"
- #include "ihxpckts.h"
- #include "hxcore.h"
- #include "hxcleng.h"
- #include "hxcorcom.h"
- #include "platform/win/wcorecom.h"
- #include <tchar.h>
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- #ifndef WIN32_PLATFORM_PSPC
- extern HINSTANCE g_hInstance;
- #else
- extern HMODULE g_hInstance;
- #endif
- #define CORECOMM_CLASS "HXEngineCommInternal"
- #define CORECOMM_NAME CORECOMM_CLASS
- #define CORECOMM_STOPAUDIOMSG "HXEngineStopAudioInternalMsg"
- #define CORECOMM_RELOADPLUGINS "HXEngineReloadPlugins"
- #define CORECOMM_UNLOADPLUGINS "HXEngineUnloadPlugins"
- #define OLDWND_CLASS "RealAudioInternal"
- UINT32 WinCoreComm::m_uStopAudioMsg = 0;
- UINT32 WinCoreComm::m_uUnloadPluginsMsg = 0;
- UINT32 WinCoreComm::m_uReloadPluginsMsg = 0;
- // --------------------------------------------------------------------------
- // constructor
- // --------------------------------------------------------------------------
- WinCoreComm::WinCoreComm(HXClientEngine* pEngine)
- : HXCoreComm(pEngine)
- , m_hWnd(NULL)
- , m_bReady(FALSE)
- #ifdef _WIN32
- , m_ulOriginalThreadId(0)
- #endif /* _WIN32 */
- {
- Init();
- }
- // --------------------------------------------------------------------------
- // destructor
- // --------------------------------------------------------------------------
- WinCoreComm::~WinCoreComm()
- {
- Shutdown();
- }
- // --------------------------------------------------------------------------
- // StopAllOtherAudioPlayers
- //
- // Stop the other players in all other processes.
- // --------------------------------------------------------------------------
- STDMETHODIMP
- WinCoreComm::StopAllOtherAudioPlayers()
- {
- EnumAction ea;
- ea.pComm = this;
- ea.uAction = WCCACTION_STOPAUDIO;
- EnumWindows((WNDENUMPROC)CoreCommEnumProc, (LPARAM)&ea);
- return HXR_OK;
- }
- // --------------------------------------------------------------------------
- // AskAllOtherPlayersToUnload
- //
- // Asks players in all other processes to stop and then unload all of the
- // DLLs not in use.
- // --------------------------------------------------------------------------
- STDMETHODIMP
- WinCoreComm::AskAllOtherPlayersToUnload()
- {
- EnumAction ea;
- ea.pComm = this;
- ea.uAction = WCCACTION_UNLOADPLUGINS;
- EnumWindows((WNDENUMPROC)CoreCommEnumProc, (LPARAM)&ea);
- return HXR_OK;
- }
- // --------------------------------------------------------------------------
- // AskAllOtherPlayersToReload
- //
- // Asks players in all other processes to reload all DLLs
- // --------------------------------------------------------------------------
- STDMETHODIMP
- WinCoreComm::AskAllOtherPlayersToReload()
- {
- EnumAction ea;
- ea.pComm = this;
- ea.uAction = WCCACTION_RELOADPLUGINS;
- EnumWindows((WNDENUMPROC)CoreCommEnumProc, (LPARAM)&ea);
- return HXR_OK;
- }
- // --------------------------------------------------------------------------
- // Init
- //
- // Register the window class, create a hidden window for callbacks.
- // --------------------------------------------------------------------------
- BOOL
- WinCoreComm::Init()
- {
- if (!m_bReady && !m_hWnd)
- {
- if (!m_uStopAudioMsg)
- {
- m_uStopAudioMsg = RegisterWindowMessage(OS_STRING(CORECOMM_STOPAUDIOMSG));
- if (!m_uStopAudioMsg)
- {
- goto exit;
- }
- }
- if (!m_uUnloadPluginsMsg)
- {
- m_uUnloadPluginsMsg = RegisterWindowMessage(OS_STRING(CORECOMM_UNLOADPLUGINS));
- if (!m_uUnloadPluginsMsg)
- {
- goto exit;
- }
- }
- if (!m_uReloadPluginsMsg)
- {
- m_uReloadPluginsMsg = RegisterWindowMessage(OS_STRING(CORECOMM_RELOADPLUGINS));
- if (!m_uReloadPluginsMsg)
- {
- goto exit;
- }
- }
- WNDCLASS wc;
- memset(&wc, 0, sizeof(WNDCLASS));
- wc.lpfnWndProc = (WNDPROC)WinCoreComm::CoreCommWndProc;
- wc.hInstance = g_hInstance;
- wc.lpszClassName = TEXT(CORECOMM_CLASS);
- if (RegisterClass(&wc))
- {
- m_hWnd = CreateWindow(OS_STRING(CORECOMM_CLASS), // class name
- OS_STRING(CORECOMM_NAME), // window name
- WS_POPUP, // style
- CW_USEDEFAULT, // x
- CW_USEDEFAULT, // y
- CW_USEDEFAULT, // cx
- CW_USEDEFAULT, // cy
- NULL, // parent
- NULL, // menu
- g_hInstance, // instance
- NULL); // create params
- #ifdef _WIN32
- m_ulOriginalThreadId = GetCurrentThreadId();
- #endif
- }
- if (m_hWnd)
- {
- // Store a pointer to ourself within the Window
- #ifdef _WIN32
- SetWindowLong(m_hWnd, GWL_USERDATA, (LONG)this);
- #else
- SetWindowLong(m_hWnd, DWL_USER, (LONG)this);
- #endif /* _WIN32 */
- m_bReady = TRUE;
- }
- }
- exit:
- return m_bReady;
- }
- // --------------------------------------------------------------------------
- // Shutdown
- //
- // Close the window and unregister the window class.
- // --------------------------------------------------------------------------
- BOOL
- WinCoreComm::Shutdown()
- {
- if (m_bReady)
- {
- if (m_hWnd)
- {
- #ifdef _WIN32
- if (m_ulOriginalThreadId == GetCurrentThreadId())
- {
- DestroyWindow(m_hWnd);
- }
- else
- {
- SendMessage(m_hWnd, WM_CLOSE, 0, 0);
- }
- #else
- DestroyWindow(m_hWnd);
- #endif
- m_hWnd = NULL;
- }
- UnregisterClass(OS_STRING(CORECOMM_CLASS), g_hInstance);
- m_bReady = FALSE;
- }
- return TRUE;
- }
- // --------------------------------------------------------------------------
- // CoreCommWndProc
- //
- // Handle messages sent to the Core comm object from other Core comm
- // objects.
- // --------------------------------------------------------------------------
- LRESULT CALLBACK
- WinCoreComm::CoreCommWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
- {
- if (uMsg == m_uStopAudioMsg || uMsg == m_uUnloadPluginsMsg ||
- uMsg == m_uReloadPluginsMsg)
- {
- // Retrieve a pointer to the WinCoreComm from the GWL_USER area
- #ifdef _WIN32
- WinCoreComm* pComm = (WinCoreComm*)GetWindowLong(hWnd, GWL_USERDATA);
- #else
- WinCoreComm* pComm = (WinCoreComm*)GetWindowLong(hWnd, DWL_USER);
- #endif /* _WIN32 */
- if (pComm)
- {
- if (uMsg == m_uStopAudioMsg)
- {
- return pComm->StopAudioPlayback();
- }
- if (uMsg == m_uUnloadPluginsMsg)
- {
- return pComm->UnloadPlugins();
- }
- if (uMsg == m_uReloadPluginsMsg)
- {
- return pComm->ReloadPlugins();
- }
- }
- }
- else if (uMsg == WM_CLOSE)
- {
- DestroyWindow(hWnd);
- return 0;
- }
- return DefWindowProc(hWnd, uMsg, wParam, lParam);
- }
- // --------------------------------------------------------------------------
- // CoreCommEnumProc
- //
- // Enumerate windows and look for PN internal Core and Core comm windows
- // to communicate with.
- // --------------------------------------------------------------------------
- BOOL CALLBACK
- WinCoreComm::CoreCommEnumProc(HWND hWnd, LPARAM lParam)
- {
- EnumAction* pEa = (EnumAction*)lParam;
- // Enumerate until ProcessWindow tells us to stop
- return pEa->pComm->ProcessWindow(hWnd, pEa->uAction);
- }
- // --------------------------------------------------------------------------
- // ProcessWindow
- //
- // Called by the CoreCommEnumProc to handle an individual window.
- // --------------------------------------------------------------------------
- BOOL
- WinCoreComm::ProcessWindow(HWND hWnd, UINT32 uAction)
- {
- if (hWnd != m_hWnd)
- {
- // Only tell windows other than ours to perform the action
- switch (uAction)
- {
- case WCCACTION_STOPAUDIO:
- {
- StopAudioWindow(hWnd);
- }
- break;
- case WCCACTION_UNLOADPLUGINS:
- {
- UnloadWindowPlugins(hWnd);
- }
- break;
- case WCCACTION_RELOADPLUGINS:
- {
- ReloadWindowPlugins(hWnd);
- }
- break;
- default:
- // Unknown action- stop enumerating.
- return FALSE;
- }
- }
- // keep enumerating
- return TRUE;
- }
- // --------------------------------------------------------------------------
- // StopAudioWindow
- //
- // Called by the ProcessWindow handler to direct a window to stop using the
- // audio.
- // --------------------------------------------------------------------------
- void
- WinCoreComm::StopAudioWindow(HWND hWnd)
- {
- char pClassName[256]; /* Flawfinder: ignore */
- if (GetClassName(hWnd, OS_STRING2(pClassName, 255), 255))
- {
- if (!strcmp(pClassName, CORECOMM_CLASS))
- {
- // A 6.0 engine
- SendMessage(hWnd, m_uStopAudioMsg, 0, 0);
- }
- else if (!strcmp(pClassName, OLDWND_CLASS))
- {
- // a 4.0 or 5.0 audio window
- SendMessage(hWnd, PWM_RELEASE_AUDIO_DEVICE, 0, 0);
- }
- }
- }
- // --------------------------------------------------------------------------
- // UnloadPlugins
- //
- // Called by the ProcessWindow handler to direct a window to stop and then
- // unload its plugins.
- // --------------------------------------------------------------------------
- void
- WinCoreComm::UnloadWindowPlugins(HWND hWnd)
- {
- char pClassName[256]; /* Flawfinder: ignore */
- if (GetClassName(hWnd, OS_STRING2(pClassName, 255), 255))
- {
- if (!strcmp(pClassName, CORECOMM_CLASS))
- {
- // A 6.0 engine
- SendMessage(hWnd, m_uUnloadPluginsMsg, 0, 0);
- }
- }
- }
- // --------------------------------------------------------------------------
- // ReloadPlugins
- //
- // Called by the ProcessWindow handler to direct a window to reload plugins.
- // --------------------------------------------------------------------------
- void
- WinCoreComm::ReloadWindowPlugins(HWND hWnd)
- {
- char pClassName[256]; /* Flawfinder: ignore */
- if (GetClassName(hWnd, OS_STRING2(pClassName, 255), 255))
- {
- if (!strcmp(pClassName, CORECOMM_CLASS))
- {
- // A 6.0 engine
- SendMessage(hWnd, m_uReloadPluginsMsg, 0, 0);
- }
- }
- }