How to Prevent Screen Tearing in Graphics Applications

1#include <SDL.h>
2
3int main(int argc, char** argv) {
4  SDL_Init(SDL_INIT_VIDEO);
5  SDL_Window* window = SDL_CreateWindow(
6    "SDL Example",
7    SDL_WINDOWPOS_UNDEFINED,
8    SDL_WINDOWPOS_UNDEFINED,
9    640, 480, 0);
10
11  // VSync enabled here
12  SDL_Renderer* renderer = SDL_CreateRenderer(
13      window, -1, SDL_RENDERER_PRESENTVSYNC);
14
15  while (true) {
16    SDL_SetRenderDrawColor(
17      renderer, 255, 0, 0, 255);  // Red
18    SDL_RenderClear(renderer);
19    SDL_RenderPresent(renderer);
20  }
21
22  SDL_DestroyRenderer(renderer);
23  SDL_DestroyWindow(window);
24  SDL_Quit();
25  return 0;
26}