Added current_w and current_h to SDL_VideoInfo for SDL 1.2 compatibility

include/SDL_compat.h

@@ -88,6 +88,9 @@ typedef struct SDL_VideoInfo
     Uint32 video_mem;
 
     SDL_PixelFormat *vfmt;
+
+    int current_w;
+    int current_h;
 } SDL_VideoInfo;
 
 /* The most common video overlay formats.

src/SDL_compat.c

@@ -76,6 +76,8 @@ SDL_GetVideoInfo(void)
         SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, &Gmask, &Bmask,
                                    &Amask);
         info.vfmt = SDL_AllocFormat(bpp, Rmask, Gmask, Bmask, Amask);
+        info.current_w = mode.w;
+        info.current_h = mode.h;
     }
     return &info;
 }

test/testvidinfo.c

@@ -520,6 +520,7 @@ main(int argc, char *argv[])
     if (info->blit_fill) {
         printf("Color fills on hardware surfaces are accelerated\n");
     }
+    printf("Current resolution: %dx%d\n", info->current_w, info->current_h);
 #if 0
     if (argv[1] && (strcmp(argv[1], "-benchmark") == 0)) {
         RunVideoTests();