emscripten/tests/sdl2_gl_frames_swap.c

40 строки
977 B
C

/*
* Copyright 2015 The Emscripten Authors. All rights reserved.
* Emscripten is available under two separate licenses, the MIT license and the
* University of Illinois/NCSA Open Source License. Both these licenses can be
* found in the LICENSE file.
*/
#include <SDL.h>
#include <emscripten.h>
SDL_Window* window;
SDL_Renderer* renderer;
void frame()
{
static int x = 0;
static int y = 0;
SDL_Rect rect;
rect.x = x;
rect.y = y;
rect.w = 100;
rect.h = 100;
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
SDL_SetRenderDrawColor(renderer, 255, 0, 0, 255);
SDL_RenderFillRect(renderer, &rect);
SDL_RenderPresent(renderer);
}
int main()
{
SDL_Init(SDL_INIT_VIDEO);
window = SDL_CreateWindow("test", 0, 0, 640, 480, SDL_WINDOW_OPENGL);
renderer = SDL_CreateRenderer(window, 0, SDL_RENDERER_ACCELERATED);
SDL_GL_SetSwapInterval(1);
emscripten_set_main_loop(frame, -1, 1);
}