C - SDL2 window crash from simple animation loop

Question

I am currently learning to use SDL2 in C and encountered a problem from which I couldn't find a solution so far

I am trying to run a simple 2 frames animation loop in the middle of the screen, but after a seemingly set amount of loops the window stops responding

while (1)
{
  SDL_RenderClear(window->renderer);
  test->o_update(sheet, test);
  SDL_RenderCopy(window->renderer, sheet->texture, &test->frame, &test->pos);
  SDL_RenderPresent(window->renderer);
  SDL_Delay(16);
}

The update function updates the coordinates on the sheet of the SDL_rect named "frame" in the test structure, so that it switches to the next frame every 30 frame. Every frame I SDL_RenderCopy, and SDL_RenderPresent to update the screen. Is there something blatantly wrong in my way of doing things ?

Answer 1

问题出在缺少对SDL事件的等待/轮询，在这种情况下，该过程最终停止响应。