WinRT: made the device's screen size be retrieve-able via SDL_GetDisplayMode()

--HG--
rename : src/video/windowsrt/SDL_winrtevents.c => src/video/windowsrt/SDL_winrtevents.cpp
rename : src/video/windowsrt/SDL_winrtframebuffer.c => src/video/windowsrt/SDL_winrtframebuffer.cpp
rename : src/video/windowsrt/SDL_winrtvideo.c => src/video/windowsrt/SDL_winrtvideo.cpp

VisualC/SDL/SDL_VS2012_WinRT.vcxproj

@@ -125,9 +125,16 @@
       <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</CompileAsWinRT>
       <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</CompileAsWinRT>
     </ClCompile>
-    <ClCompile Include="..\..\src\video\windowsrt\SDL_winrtevents.c" />
-    <ClCompile Include="..\..\src\video\windowsrt\SDL_winrtframebuffer.c" />
-    <ClCompile Include="..\..\src\video\windowsrt\SDL_winrtvideo.c" />
+    <ClCompile Include="..\..\src\video\windowsrt\SDL_winrtevents.cpp" />
+    <ClCompile Include="..\..\src\video\windowsrt\SDL_winrtframebuffer.cpp" />
+    <ClCompile Include="..\..\src\video\windowsrt\SDL_winrtvideo.cpp">
+      <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</CompileAsWinRT>
+      <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</CompileAsWinRT>
+      <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</CompileAsWinRT>
+      <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</CompileAsWinRT>
+      <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</CompileAsWinRT>
+      <CompileAsWinRT Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</CompileAsWinRT>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\include\begin_code.h" />

src/video/windowsrt/SDL_WinRTApp.cpp

@@ -2,12 +2,27 @@
 #include "SDL_WinRTApp.h"
 #include "BasicTimer.h"
 
+extern "C" {
+#include "SDL_assert.h"
+#include "SDL_stdinc.h"
+#include "../SDL_sysvideo.h"
+}
+
 // HACK, DLudwig: The C-style main() will get loaded via the app's
 // WinRT-styled main(), which is part of SDLmain_for_WinRT.cpp.
 // This seems wrong on some level, but does seem to work.
 typedef int (*SDL_WinRT_MainFunction)(int, char **);
 static SDL_WinRT_MainFunction SDL_WinRT_main = nullptr;
 
+// HACK, DLudwig: record a reference to the global, Windows RT 'app'/view.
+// SDL/WinRT will use this throughout its code.
+//
+// TODO, WinRT: consider replacing SDL_WinRTGlobalApp with something
+// non-global, such as something created inside
+// SDL_InitSubSystem(SDL_INIT_VIDEO), or something inside
+// SDL_CreateWindow().
+SDL_WinRTApp ^ SDL_WinRTGlobalApp = nullptr;
+
 
 using namespace Windows::ApplicationModel;
 using namespace Windows::ApplicationModel::Core;
@@ -151,9 +166,30 @@ void SDL_WinRTApp::OnResuming(Platform::Object^ sender, Platform::Object^ args)
 	// does not occur if the app was previously terminated.
 }
 
+SDL_DisplayMode SDL_WinRTApp::GetMainDisplayMode()
+{
+    SDL_DisplayMode mode;
+    SDL_zero(mode);
+    mode.format = SDL_PIXELFORMAT_RGB888;
+    mode.w = (int) CoreWindow::GetForCurrentThread()->Bounds.Width;
+    mode.h = (int) CoreWindow::GetForCurrentThread()->Bounds.Height;
+    mode.refresh_rate = 0;  // TODO, WinRT: see if refresh rate data is available, or relevant (for WinRT apps)
+    mode.driverdata = NULL;
+    return mode;
+}
+
 IFrameworkView^ Direct3DApplicationSource::CreateView()
 {
-    return ref new SDL_WinRTApp();
+    // TODO, WinRT: see if this function (CreateView) can ever get called
+    // more than once.  For now, just prevent it from ever assigning
+    // SDL_WinRTGlobalApp more than once.
+    SDL_assert(!SDL_WinRTGlobalApp);
+    SDL_WinRTApp ^ app = ref new SDL_WinRTApp();
+    if (!SDL_WinRTGlobalApp)
+    {
+        SDL_WinRTGlobalApp = app;
+    }
+    return app;
 }
 
 __declspec(dllexport) int SDL_WinRT_RunApplication(SDL_WinRT_MainFunction mainFunction)

src/video/windowsrt/SDL_WinRTApp.h

@@ -2,6 +2,9 @@
 
 #include "SDLmain_WinRT_common.h"
 #include "CubeRenderer.h"
+#include <vector>
+
+using namespace Windows::UI::Core;
 
 ref class SDL_WinRTApp sealed : public Windows::ApplicationModel::Core::IFrameworkView
 {
@@ -15,6 +18,10 @@ public:
 	virtual void Run();
 	virtual void Uninitialize();
 
+internal:
+    // SDL-specific methods
+    SDL_DisplayMode GetMainDisplayMode();
+
 protected:
 	// Event Handlers.
 	void OnWindowSizeChanged(Windows::UI::Core::CoreWindow^ sender, Windows::UI::Core::WindowSizeChangedEventArgs^ args);

src/video/windowsrt/SDL_winrtvideo.cpp

@@ -28,12 +28,15 @@
    was based off of SDL's "dummy" video driver.
  */
 
+extern "C" {
 #include "SDL_video.h"
 #include "SDL_mouse.h"
 #include "../SDL_sysvideo.h"
 #include "../SDL_pixels_c.h"
 #include "../../events/SDL_events_c.h"
+}
 
+#include "SDL_WinRTApp.h"
 #include "SDL_winrtvideo.h"
 #include "SDL_winrtevents_c.h"
 #include "SDL_winrtframebuffer_c.h"
@@ -93,26 +96,19 @@ VideoBootStrap WINRT_bootstrap = {
     WINRT_Available, WINRT_CreateDevice
 };
 
+extern SDL_WinRTApp ^ SDL_WinRTGlobalApp;
 
 int
 WINRT_VideoInit(_THIS)
 {
-    SDL_DisplayMode mode;
-
-    /* Use a fake 32-bpp desktop mode */
-    mode.format = SDL_PIXELFORMAT_RGB888;
-    mode.w = 1024;
-    mode.h = 768;
-    mode.refresh_rate = 0;
-    mode.driverdata = NULL;
-    if (SDL_AddBasicVideoDisplay(&mode) < 0) {
-        return -1;
-    }
-
-    SDL_zero(mode);
-    SDL_AddDisplayMode(&_this->displays[0], &mode);
-
-    /* We're done! */
+    SDL_DisplayMode mode = SDL_WinRTGlobalApp->GetMainDisplayMode();
+    if (SDL_AddBasicVideoDisplay(&mode) < 0) {
+        return -1;
+    }
+
+    SDL_AddDisplayMode(&_this->displays[0], &mode);
+
+    /* We're done! */
     return 0;
 }
 

src/video/windowsrt/SDL_winrtvideo.h

@@ -23,8 +23,16 @@
 #ifndef _SDL_winrtvideo_h
 #define _SDL_winrtvideo_h
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "../SDL_sysvideo.h"
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _SDL_winrtvideo_h */
 
 /* vi: set ts=4 sw=4 expandtab: */

src/video/windowsrt/SDLmain_WinRT_common.h

@@ -4,4 +4,9 @@
 #include <d3d11_1.h>
 #include <DirectXMath.h>
 #include <memory>
-#include <agile.h>
+#include <agile.h>
+#include <vector>
+
+extern "C" {
+#include "../SDL_sysvideo.h"
+}