Multiple SDL windows with YUV Overlay

Does anyone know, how to create two Windows ans both should have an own YUV Overlay with the SDL 1.3 Library?

It is possible or do I try to use a wrong strategy?

If I tried the following source, i got an error message: [!] can't create local overlay YUV display is only supported on the screen surface

#include <SDL/SDL.h>
#include <stdio.h>
#include <stdlib.h>

static bool running = true;
static SDL_Window* win_local;
static SDL_Window* win_remote;

int main(int argc, char** argv) {

//    SDL_SetVideoMode

    if((SDL_Init(SDL_INIT_VIDEO) != 0))
    {
        printf("[!] can't initialize SDL %s\n", SDL_GetError());
        exit(-1);
    }

    if(!(win_local = SDL_CreateWindow("Local Video", 0, 0, 640, 480, SDL_WINDOW_SHOWN | SDL_WINDOW_BORDERLESS)))
    {
        printf("[!] can't create Window %s\n", SDL_GetError());
        exit(-1);

    }

    if(!(win_remote = SDL_CreateWindow("R开发者_如何学编程emote Video", 700, 0, 640, 480, SDL_WINDOW_SHOWN)))
    {
        printf("[!] can't create Window %s\n", SDL_GetError());
        exit(-1);
    }


    SDL_Surface* surface_local; 
    SDL_Surface* surface_remote; 

    if(!(surface_local = SDL_GetWindowSurface(win_local)))
    {
        printf("[!] can't get local surface %s\n", SDL_GetError());
        exit(-1);
    }

    if(!(surface_remote = SDL_GetWindowSurface(win_remote)))
    {
        printf("[!] can't get remote surface %s", SDL_GetError());
        exit(-1);
    }

    SDL_Overlay* overlay_local;
    SDL_Overlay* overlay_remote;

    if(!(overlay_local = SDL_CreateYUVOverlay(640, 480, SDL_IYUV_OVERLAY, surface_local)))
    {
        printf("[!] can't create local overlay %s\n", SDL_GetError());
                exit(-1);
    }
//
//  if(!(overlay_remote = SDL_CreateYUVOverlay(640, 480, SDL_IYUV_OVERLAY, surface_remote)))
//  {
//      printf("[!] can't create remote overlay %s\n", SDL_GetError());
//                exit(-1);
//  }


    SDL_Event event;
    while(running)
    {

        while(SDL_PollEvent(&event))
        {
            switch(event.type)
            {
            case SDL_KEYDOWN:
                if (event.key.keysym.sym == SDLK_ESCAPE)
                    running = false;
                break;
            case SDL_QUIT:
                running = false;
                break;
            }
        }

        SDL_Delay(20);
    }

    //SDL_FreeSurface(local);
    //SDL_FreeSurface(remote);

    SDL_DestroyWindow(win_local);
    SDL_DestroyWindow(win_remote);
    SDL_Quit();
    exit(0);
    return 0;
}

---

SDL_CreateYUVOverlay doesn't work well with multiple windows, because it's not part of 1.3 API, it was left for reverse compatibility with SDL 1.2.

I see three possible solutions:

1. Call SDL_CreateYUVOverlay just after SDL_CreateWindow for each surface. You will probably avoid the error but I'm not sure if it will work correctly.

2. See how SDL_CreateYUVOverlay is implemented using 1.3 API and do something similar.

3. Use OpenGL and shaders.