*initHEADmaster

1 files changed, 154 insertions, 0 deletions

diff --git a/source/3rd-party/SDL2/src/video/winrt/SDL_winrtevents.cpp b/source/3rd-party/SDL2/src/video/winrt/SDL_winrtevents.cpp
new file mode 100644
index 0000000..370e8c5
--- /dev/null
+++ b/source/3rd-party/SDL2/src/video/winrt/SDL_winrtevents.cpp
@@ -0,0 +1,154 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "../../SDL_internal.h"
+
+#if SDL_VIDEO_DRIVER_WINRT
+
+/*
+ * Windows includes:
+ */
+#include <Windows.h>
+using namespace Windows::UI::Core;
+using Windows::UI::Core::CoreCursor;
+
+/*
+ * SDL includes:
+ */
+#include "SDL_winrtevents_c.h"
+#include "../../core/winrt/SDL_winrtapp_common.h"
+#include "../../core/winrt/SDL_winrtapp_direct3d.h"
+#include "../../core/winrt/SDL_winrtapp_xaml.h"
+#include "SDL_assert.h"
+#include "SDL_system.h"
+
+extern "C" {
+#include "../../thread/SDL_systhread.h"
+#include "../SDL_sysvideo.h"
+#include "../../events/SDL_events_c.h"
+}
+
+
+/* Forward declarations */
+static void WINRT_YieldXAMLThread();
+
+
+/* Global event management */
+
+void
+WINRT_PumpEvents(_THIS)
+{
+    if (SDL_WinRTGlobalApp) {
+        SDL_WinRTGlobalApp->PumpEvents();
+    } else if (WINRT_XAMLWasEnabled) {
+        WINRT_YieldXAMLThread();
+    }
+}
+
+
+/* XAML Thread management */
+
+enum SDL_XAMLAppThreadState
+{
+    ThreadState_NotLaunched = 0,
+    ThreadState_Running,
+    ThreadState_Yielding
+};
+
+static SDL_XAMLAppThreadState _threadState = ThreadState_NotLaunched;
+static SDL_Thread * _XAMLThread = nullptr;
+static SDL_mutex * _mutex = nullptr;
+static SDL_cond * _cond = nullptr;
+
+static void
+WINRT_YieldXAMLThread()
+{
+    SDL_LockMutex(_mutex);
+    SDL_assert(_threadState == ThreadState_Running);
+    _threadState = ThreadState_Yielding;
+    SDL_UnlockMutex(_mutex);
+
+    SDL_CondSignal(_cond);
+
+    SDL_LockMutex(_mutex);
+    while (_threadState != ThreadState_Running) {
+        SDL_CondWait(_cond, _mutex);
+    }
+    SDL_UnlockMutex(_mutex);
+}
+
+static int
+WINRT_XAMLThreadMain(void * userdata)
+{
+    // TODO, WinRT: pass the C-style main() a reasonably realistic
+    // representation of command line arguments.
+    int argc = 0;
+    char **argv = NULL;
+    return WINRT_SDLAppEntryPoint(argc, argv);
+}
+
+void
+WINRT_CycleXAMLThread(void)
+{
+    switch (_threadState) {
+        case ThreadState_NotLaunched:
+        {
+            _cond = SDL_CreateCond();
+
+            _mutex = SDL_CreateMutex();
+            _threadState = ThreadState_Running;
+            _XAMLThread = SDL_CreateThreadInternal(WINRT_XAMLThreadMain, "SDL/XAML App Thread", 0, nullptr);
+
+            SDL_LockMutex(_mutex);
+            while (_threadState != ThreadState_Yielding) {
+                SDL_CondWait(_cond, _mutex);
+            }
+            SDL_UnlockMutex(_mutex);
+
+            break;
+        }
+
+        case ThreadState_Running:
+        {
+            SDL_assert(false);
+            break;
+        }
+
+        case ThreadState_Yielding:
+        {
+            SDL_LockMutex(_mutex);
+            SDL_assert(_threadState == ThreadState_Yielding);
+            _threadState = ThreadState_Running;
+            SDL_UnlockMutex(_mutex);
+
+            SDL_CondSignal(_cond);
+
+            SDL_LockMutex(_mutex);
+            while (_threadState != ThreadState_Yielding) {
+                SDL_CondWait(_cond, _mutex);
+            }
+            SDL_UnlockMutex(_mutex);
+        }
+    }
+}
+
+#endif /* SDL_VIDEO_DRIVER_WINRT */
+
+/* vi: set ts=4 sw=4 expandtab: */