Added a README file regarding WinRT support

To note, this file is currently formatted with CRLF line endings, rather than
LF, to allow the file to be viewed with Notepad.

Xcode-iOS/Demos/src/rectangles.c

@@ -0,0 +1,81 @@
+/*
+ *  rectangles.c
+ *  written by Holmes Futrell
+ *  use however you want
+*/
+
+#include "SDL.h"
+#include <time.h>
+#include "common.h"
+
+void
+render(SDL_Renderer *renderer)
+{
+
+    Uint8 r, g, b;
+    /*  Come up with a random rectangle */
+    SDL_Rect rect;
+    rect.w = randomInt(64, 128);
+    rect.h = randomInt(64, 128);
+    rect.x = randomInt(0, SCREEN_WIDTH);
+    rect.y = randomInt(0, SCREEN_HEIGHT);
+
+    /* Come up with a random color */
+    r = randomInt(50, 255);
+    g = randomInt(50, 255);
+    b = randomInt(50, 255);
+
+    /*  Fill the rectangle in the color */
+    SDL_SetRenderDrawColor(renderer, r, g, b, 255);
+    SDL_RenderFillRect(renderer, &rect);
+
+    /* update screen */
+    SDL_RenderPresent(renderer);
+
+}
+
+int
+main(int argc, char *argv[])
+{
+    if (SDL_Init(SDL_INIT_VIDEO/* | SDL_INIT_AUDIO */) < 0)
+    {
+        printf("Unable to initialize SDL");
+    }
+    
+    SDL_LogSetAllPriority(SDL_LOG_PRIORITY_WARN);
+    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
+    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+    
+    int landscape = 1;
+    int modes = SDL_GetNumDisplayModes(0);
+    int sx = 0, sy = 0;
+    for (int i = 0; i < modes; i++)
+    {
+        SDL_DisplayMode mode;
+        SDL_GetDisplayMode(0, i, &mode);
+        if (landscape ? mode.w > sx : mode.h > sy)
+        {
+            sx = mode.w;
+            sy = mode.h;
+        }
+    }
+    
+    printf("picked: %d %d\n", sx, sy);
+    
+    SDL_Window *_sdl_window = NULL;
+    SDL_GLContext _sdl_context = NULL;
+    
+    _sdl_window = SDL_CreateWindow("fred",
+                                   0, 0,
+                                   sx, sy,
+                                   SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS);
+    
+    SDL_SetHint("SDL_HINT_ORIENTATIONS", "LandscapeLeft LandscapeRight");
+    
+    int ax = 0, ay = 0;
+    SDL_GetWindowSize(_sdl_window, &ax, &ay);
+    
+    printf("given: %d %d\n", ax, ay);
+
+    return 0;
+}