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Viewing changes to Windows/EmuThread.cpp

  • Committer: Sérgio Benjamim
  • Date: 2016-04-25 02:30:18 UTC
  • Revision ID: sergio_br2@yahoo.com.br-20160425023018-wk3rd7nu30fejjzz
1.2.2 source.

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Windows/EmuThread.cpp
 
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// NOTE: Apologies for the quality of this code, this is really from pre-opensource Dolphin - that is, 2003.
 
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#include "base/timeutil.h"
 
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#include "base/NativeApp.h"
 
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#include "base/mutex.h"
 
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#include "i18n/i18n.h"
 
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#include "input/input_state.h"
 
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#include "util/text/utf8.h"
 
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#include "Common/Log.h"
 
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#include "Common/StringUtils.h"
 
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#include "../Globals.h"
 
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#include "Windows/EmuThread.h"
 
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#include "Windows/W32Util/Misc.h"
 
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#include "Windows/MainWindow.h"
 
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#include "Windows/resource.h"
 
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#include "Core/Reporting.h"
 
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#include "Core/MemMap.h"
 
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#include "Core/Core.h"
 
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#include "Core/Host.h"
 
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#include "Core/System.h"
 
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#include "Core/Config.h"
 
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#include "thread/threadutil.h"
 
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#include <tchar.h>
 
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#include <process.h>
 
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#include <intrin.h>
 
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#pragma intrinsic(_InterlockedExchange)
 
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static recursive_mutex emuThreadLock;
 
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static HANDLE emuThread;
 
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static volatile long emuThreadReady;
 
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InputState input_state;
 
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extern std::vector<std::wstring> GetWideCmdLine();
 
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enum EmuThreadStatus : long
 
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{
 
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        THREAD_NONE = 0,
 
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        THREAD_INIT,
 
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        THREAD_CORE_LOOP,
 
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        THREAD_SHUTDOWN,
 
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        THREAD_END,
 
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};
 
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HANDLE EmuThread_GetThreadHandle()
 
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{
 
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        lock_guard guard(emuThreadLock);
 
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        return emuThread;
 
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}
 
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unsigned int WINAPI TheThread(void *);
 
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void EmuThread_Start()
 
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{
 
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        lock_guard guard(emuThreadLock);
 
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        emuThread = (HANDLE)_beginthreadex(0, 0, &TheThread, 0, 0, 0);
 
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}
 
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void EmuThread_Stop()
 
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{
 
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        // Already stopped?
 
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        {
 
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                lock_guard guard(emuThreadLock);
 
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                if (emuThread == NULL || emuThreadReady == THREAD_END)
 
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                        return;
 
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        }
 
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        UpdateUIState(UISTATE_EXIT);
 
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        Core_Stop();
 
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        Core_WaitInactive(800);
 
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        if (WAIT_TIMEOUT == WaitForSingleObject(emuThread, 800))
 
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        {
 
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                _dbg_assert_msg_(COMMON, false, "Wait for EmuThread timed out.");
 
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        }
 
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        {
 
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                lock_guard guard(emuThreadLock);
 
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                CloseHandle(emuThread);
 
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                emuThread = 0;
 
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        }
 
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        host->UpdateUI();
 
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}
 
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bool EmuThread_Ready()
 
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{
 
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        return emuThreadReady == THREAD_CORE_LOOP;
 
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}
 
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unsigned int WINAPI TheThread(void *)
 
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{
 
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        _InterlockedExchange(&emuThreadReady, THREAD_INIT);
 
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        setCurrentThreadName("Emu");  // And graphics...
 
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        // Native overwrites host. Can't allow that.
 
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        Host *oldHost = host;
 
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        // Convert the command-line arguments to Unicode, then to proper UTF-8 
 
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        // (the benefit being that we don't have to pollute the UI project with win32 ifdefs and lots of Convert<whatever>To<whatever>).
 
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        // This avoids issues with PPSSPP inadvertently destroying paths with Unicode glyphs 
 
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        // (using the ANSI args resulted in Japanese/Chinese glyphs being turned into question marks, at least for me..).
 
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        // -TheDax
 
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        std::vector<std::wstring> wideArgs = GetWideCmdLine();
 
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        std::vector<std::string> argsUTF8;
 
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        for (auto& string : wideArgs) {
 
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                argsUTF8.push_back(ConvertWStringToUTF8(string));
 
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        }
 
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        std::vector<const char *> args;
 
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        for (auto& string : argsUTF8) {
 
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                args.push_back(string.c_str());
 
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        }
 
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        NativeInit(static_cast<int>(args.size()), &args[0], "1234", "1234", nullptr);
 
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        Host *nativeHost = host;
 
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        host = oldHost;
 
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        host->UpdateUI();
 
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        GraphicsContext *graphicsContext;
 
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        std::string error_string;
 
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        if (!host->InitGraphics(&error_string, &graphicsContext)) {
 
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                I18NCategory *err = GetI18NCategory("Error");
 
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                Reporting::ReportMessage("Graphics init error: %s", error_string.c_str());
 
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                const char *defaultErrorOpenGL = "Failed initializing graphics. Try upgrading your graphics drivers.\n\nWould you like to try switching to DirectX 9?\n\nError message:";
 
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                const char *defaultErrorDirect3D9 = "Failed initializing graphics. Try upgrading your graphics drivers and directx 9 runtime.\n\nWould you like to try switching to OpenGL?\n\nError message:";
 
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                const char *genericError;
 
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                int nextBackend = GPU_BACKEND_DIRECT3D9;
 
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                switch (g_Config.iGPUBackend) {
 
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                case GPU_BACKEND_DIRECT3D9:
 
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                        nextBackend = GPU_BACKEND_OPENGL;
 
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                        genericError = err->T("GenericDirect3D9Error", defaultErrorDirect3D9);
 
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                        break;
 
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                case GPU_BACKEND_OPENGL:
 
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                default:
 
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                        nextBackend = GPU_BACKEND_DIRECT3D9;
 
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                        genericError = err->T("GenericOpenGLError", defaultErrorOpenGL);
 
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                        break;
 
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                }
 
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                std::string full_error = StringFromFormat("%s\n\n%s", genericError, error_string.c_str());
 
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                std::wstring title = ConvertUTF8ToWString(err->T("GenericGraphicsError", "Graphics Error"));
 
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                bool yes = IDYES == MessageBox(0, ConvertUTF8ToWString(full_error).c_str(), title.c_str(), MB_ICONERROR | MB_YESNO);
 
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                ERROR_LOG(BOOT, full_error.c_str());
 
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                if (yes) {
 
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                        // Change the config to the alternative and restart.
 
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                        g_Config.iGPUBackend = nextBackend;
 
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                        g_Config.Save();
 
155
 
 
156
                        W32Util::ExitAndRestart();
 
157
                }
 
158
 
 
159
                // No safe way out without graphics.
 
160
                ExitProcess(1);
 
161
        }
 
162
 
 
163
        PSP_CoreParameter().graphicsContext = graphicsContext;
 
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        NativeInitGraphics(graphicsContext);
 
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        NativeResized();
 
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168
        INFO_LOG(BOOT, "Done.");
 
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        _dbg_update_();
 
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        if (coreState == CORE_POWERDOWN) {
 
172
                INFO_LOG(BOOT, "Exit before core loop.");
 
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                goto shutdown;
 
174
        }
 
175
 
 
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        _InterlockedExchange(&emuThreadReady, THREAD_CORE_LOOP);
 
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178
        if (g_Config.bBrowse)
 
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                PostMessage(MainWindow::GetHWND(), WM_COMMAND, ID_FILE_LOAD, 0);
 
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181
        Core_EnableStepping(FALSE);
 
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183
        while (GetUIState() != UISTATE_EXIT)
 
184
        {
 
185
                // We're here again, so the game quit.  Restart Core_Run() which controls the UI.
 
186
                // This way they can load a new game.
 
187
                if (!Core_IsActive())
 
188
                        UpdateUIState(UISTATE_MENU);
 
189
 
 
190
                Core_Run(graphicsContext);
 
191
        }
 
192
 
 
193
shutdown:
 
194
        _InterlockedExchange(&emuThreadReady, THREAD_SHUTDOWN);
 
195
 
 
196
        NativeShutdownGraphics();
 
197
 
 
198
        host->ShutdownSound();
 
199
        host = nativeHost;
 
200
        NativeShutdown();
 
201
        host = oldHost;
 
202
        host->ShutdownGraphics();
 
203
        
 
204
        _InterlockedExchange(&emuThreadReady, THREAD_END);
 
205
 
 
206
        return 0;
 
207
}
 
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