for(int i=0;i<size;++i) {
         delete collisMap.bitmap[i];
}

delete[] collisMap.bitmap;

class Texture
{
      SDL_Texture* m_tex;

      public:
          Texture()
          {
              m_tex = nullptr;
          }

          ~Texture()
          {
              if (m_tex) {
                  SDL_DestroyTexture(m_tex);
                  m_tex = nullptr;
              }
          }
            
          bool load(const std::string &filename, SDL_Renderer *renderer)
          {
              m_tex = IMG_LoadTexture(renderer, filename);
              return (m_tex != nullptr);
          }
            
          bool isNull() const { return (m_tex == nullptr); }

          operator SDL_Texture*() { return m_tex; }
            
      private:
          Texture(const Texture &);
          Texture& operator=(const Texture &);
};

Texture texSpr[256];       
texSpr[nomer_kadra].load(filename, renderer);

SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texSpr[nomer_kadra], NULL, NULL);
SDL_RenderPresent(renderer);

SDL_Delay(2000);