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Simplified test case

viewport.c (text/x-csrc), 1.51 KB, created by Indiana Kernick on 2020-02-03 06:15:28 UTC

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Description:

Filename:

MIME Type:

Creator: Indiana Kernick

Created: 2020-02-03 06:15:28 UTC

Size: 1.51 KB

patch

obsolete

>#include <SDL2/SDL.h>
>
>void raise() {
>  printf("%s\n", SDL_GetError());
>  exit(1);
>}
>
>void checkInt(int code) {
>  if (code == -1) raise();
>}
>
>void checkPtr(void *ptr) {
>  if (ptr == NULL) raise();
>}
>
>int main() {
>  checkInt(SDL_Init(SDL_INIT_VIDEO));
>
>  SDL_Window *window = SDL_CreateWindow(
>    "Test",
>    SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
>    400, 200,
>    SDL_WINDOW_SHOWN
>  );
>  checkPtr(window);
>
>  // SDL_SetHint(SDL_HINT_RENDER_DRIVER, "metal"); // bad
>  // SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl"); // good
>  // SDL_SetHint(SDL_HINT_RENDER_DRIVER, "software"); // good
>
>  SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, 0);
>  checkPtr(renderer);
>
>  const SDL_Rect leftView = {0, 0, 200, 200};
>  const SDL_Rect rightView = {200, 0, 200, 200};
>  const SDL_Rect rect = {50, 50, 100, 100};
>
>  checkInt(SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255));
>  checkInt(SDL_RenderClear(renderer));
>  
>  checkInt(SDL_RenderSetViewport(renderer, &leftView));
>  checkInt(SDL_SetRenderDrawColor(renderer, 0, 255, 0, 255));
>  checkInt(SDL_RenderFillRect(renderer, &rect));
>
>  checkInt(SDL_RenderSetViewport(renderer, &rightView));
>  checkInt(SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255));
>  checkInt(SDL_RenderFillRect(renderer, &rect));
>
>  SDL_RenderPresent(renderer);
>
>  int running = 1;
>  while (running) {
>    SDL_Event e;
>    while (SDL_WaitEvent(&e)) {
>      if (e.type == SDL_QUIT) {
>        running = 0;
>        break;
>      }
>    }
>  }
>
>  SDL_DestroyRenderer(renderer);
>  SDL_DestroyWindow(window);
>  SDL_Quit();
>}

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Attachments on bug 4960: 4177 | 4185

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.