funciones separadas

bocm.c

@@ -1,6 +1,11 @@
 #include <SDL.h>
 #include <stdbool.h>
 
+SDL_Window*     window;
+SDL_Renderer*   renderer;
+SDL_Surface*    surface;
+SDL_Texture*    texture;
+SDL_Event       event;
 const int screenWidth = 800;
 const int screenHeight = 600;
 
@@ -14,33 +19,33 @@ int throw_sdl_err(const char* fmt)
   return 3;
 }
 
-int main(int argc, char** argv) {
-
-  SDL_Window*     window;
-  SDL_Renderer*   renderer;
-  SDL_Surface*    surface;
-  SDL_Texture*    texture;
-  SDL_Event       event;
-
+int initWindow(void){
   if (SDL_Init(SDL_INIT_VIDEO) < 0) {
     return throw_sdl_err("Could not init the SDL: %s");
   }
-
   if (SDL_CreateWindowAndRenderer(screenWidth, screenHeight, SDL_WINDOW_OPENGL, &window, &renderer)) {
     return throw_sdl_err("Could not create new window and renderer: %s");
   }
+  return 0;
+}
 
+int loadLogo(void){
   surface = SDL_LoadBMP("imgs/bocm.bmp");
   if (!surface) {
     return throw_sdl_err("Could not load BMP image: %s");
   }
-
   texture = SDL_CreateTextureFromSurface(renderer, surface);
   if (!texture) {
     return throw_sdl_err("Could not create new texture from surface: %s");
   }
-
   SDL_FreeSurface(surface); // free a RGB surface
+  return 0;
+}
+
+int main(int argc, char** argv) {
+
+  initWindow();
+  loadLogo();
 
   while (1) {
     SDL_PollEvent(&event);