Move program icon into a function.

sdl_handmade.c

@@ -698,6 +698,42 @@ U64 __rdtsc()
 }
 #endif
 
+/* TODO: In the future, this should just accept either a bitmap or image
+ *       path. This is to be determined. One cool feature this might
+ *       support is displaying certain information in the program icon by
+ *       drawing into a bitmap. */
+void SDLSetProgramIcon(SDL_Window *Window)
+{
+    SDL_Surface *icon;
+
+    U32 Rmask, Gmask, Bmask, Amask;
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+    S32 shift_by = (program_icon.bytes_per_pixel == 3) ? 8 : 0;
+    Rmask = 0xff000000 >> shift_by;
+    Gmask = 0x00ff0000 >> shift_by;
+    Bmask = 0x0000ff00 >> shift_by;
+    Amask = 0x000000ff >> shift_by;
+#else
+    Rmask = 0x000000ff;
+    Gmask = 0x0000ff00;
+    Bmask = 0x00ff0000;
+    Amask = (program_icon.bytes_per_pixel == 3) ? 0 : 0xff000000;
+#endif
+
+    icon = SDL_CreateRGBSurfaceFrom(
+            (void *)program_icon.pixel_data,
+            program_icon.width, program_icon.height,
+            program_icon.bytes_per_pixel * 8,
+            program_icon.bytes_per_pixel * program_icon.width,
+            Rmask, Gmask, Bmask, Amask);
+    if(icon) {
+        SDL_SetWindowIcon(Window, icon);
+        SDL_FreeSurface(icon);
+    } else {
+        /* TODO: This didn't work . . . SDL_GetError() */
+    }
+}
+
 S32 main(S32 argc, char *argv[])
 {
     sdl_state SDLState;
@@ -729,9 +765,6 @@ S32 main(S32 argc, char *argv[])
     if(Window) {
         SDL_Renderer *Renderer;
 
-        SDL_Surface* icon;
-        Uint32 rmask, gmask, bmask, amask;
-
         SDL_DisplayMode display_mode;
         SDL_GetCurrentDisplayMode(0, &display_mode);
 
@@ -739,30 +772,6 @@ S32 main(S32 argc, char *argv[])
         SDL_SetWindowPosition(Window, (display_mode.w - RESOLUTION_WIDTH),
                                       (display_mode.h - RESOLUTION_HEIGHT));
 
-        /* Set program icon. */
-#if SDL_BYTEORDER == SDL_BIG_ENDIAN
-        int shift = (program_icon.bytes_per_pixel == 3) ? 8 : 0;
-        rmask = 0xff000000 >> shift;
-        gmask = 0x00ff0000 >> shift;
-        bmask = 0x0000ff00 >> shift;
-        amask = 0x000000ff >> shift;
-#else
-        rmask = 0x000000ff;
-        gmask = 0x0000ff00;
-        bmask = 0x00ff0000;
-        amask = (program_icon.bytes_per_pixel == 3) ? 0 : 0xff000000;
-#endif
-
-        icon = SDL_CreateRGBSurfaceFrom(
-                (void *)program_icon.pixel_data,
-                program_icon.width, program_icon.height,
-                program_icon.bytes_per_pixel * 8,
-                program_icon.bytes_per_pixel * program_icon.width,
-                rmask, gmask, bmask, amask);
-
-        SDL_SetWindowIcon(Window, icon);
-        SDL_FreeSurface(icon);
-
         /* "Wayland needs an event loop and rendering or it won't function."
          * https://github.com/libsdl-org/SDL/issues/7699#issuecomment-1545684792 */
         /* NOTE: This means that we need to readraw to even resize the
@@ -781,6 +790,12 @@ S32 main(S32 argc, char *argv[])
     void *BaseAddress = (void *)(0);
 #endif
 
+            SDLSetProgramIcon(Window);
+#if 0
+            if(SDL_ShowCursor(SDL_DISABLE) < 0) {
+                /* TODO: This didn't work . . . SDL_GetError() */
+            }
+#endif
 
             GlobalRunning = TRUE;