Виснет графика в SDL

#include <SDL.h>
#include <SDL_mixer.h>
#include <stdio.h>
#include <string>
#include <iostream>
using namespace std;
 
int main( int argc, char* args[] ){
 
 
    int Delay_Time = 227;
 
    // initialization of sdl subsystems
    if (SDL_Init(SDL_INIT_EVERYTHING) != 0){
        std::cout << "SDL_Init Error: " << SDL_GetError() << std::endl;
        return 1;
    }
 
    //initialization of window
    SDL_Window *win = SDL_CreateWindow("window", 100, 100, 640, 360, SDL_WINDOW_SHOWN);
    if (win == NULL){
        std::cout << "SDL_CreateWindow Error: " << SDL_GetError() << std::endl;
        return 1;
    }
 
    //initialization of render
    SDL_Renderer *ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
    if (ren == NULL){
        std::cout << "SDL_CreateRenderer Error: " << SDL_GetError() << std::endl;
        return 1;
    }
 
    //loading images
    SDL_Surface *p1 = SDL_LoadBMP("IGM/p1.bmp");
    SDL_Surface *p1 = SDL_LoadBMP("IGM/p2.bmp");
 
    //creating textures
    SDL_Texture *t1 = SDL_CreateTextureFromSurface(ren, p1);
    SDL_Texture *t2 = SDL_CreateTextureFromSurface(ren, p2);
 
    //loading music
    Mix_Music *mus = NULL;
    if(Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048) < 0 ) return 1;
    mus = Mix_LoadMUS("MSC/mus.wav");
    if(mus == NULL)
    {
        std::cout <<"loading music error: " << Mix_GetError();
        return 1;
    }
 
    while(1){
 
        //playing music
        if(Mix_PlayingMusic() == 0) if(Mix_PlayMusic(mus, -1) == 0);
 
        //showing first image
        SDL_RenderClear(ren);
        SDL_RenderCopy(ren, t2, NULL, NULL);
        SDL_RenderPresent(ren);
        SDL_Delay(Delay_Time);
 
        //showing second image
        SDL_RenderClear(ren);
        SDL_RenderCopy(ren, t1, NULL, NULL);
        SDL_RenderPresent(ren);
        SDL_Delay(Delay_Time);
    }
    Mix_FreeMusic(mus);
    mus = NULL;
    SDL_DestroyRenderer(ren);
    SDL_DestroyWindow(win);
    Mix_Quit();
    SDL_Quit();
    return 0;
    }