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remove timer, poll for event instead to run at maximum framerate

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This commit is contained in:
Josh Holtrop 2013-02-02 21:54:31 -05:00
parent 4425ba1c0b
commit 0e85b9ef95
1 changed files with 9 additions and 24 deletions
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33
sdl_opengl_bare.d
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@ -5,7 +5,6 @@ import derelict.opengl.glu;
enum int WIDTH = 800; enum int WIDTH = 800;
enum int HEIGHT = 600; enum int HEIGHT = 600;
static bool drawing = false;
void init() void init()
{ {
@ -22,7 +21,6 @@ void init()
void display() void display()
{ {
drawing = true;
glClear(GL_COLOR_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT);
glPushMatrix(); glPushMatrix();
glRotatef(SDL_GetTicks() * 90.0 / 1000, 0, 0, 1); glRotatef(SDL_GetTicks() * 90.0 / 1000, 0, 0, 1);
@ -37,21 +35,9 @@ void display()
glVertex3f(5.0, -5.0, 0.0); glVertex3f(5.0, -5.0, 0.0);
glEnd(); glEnd();
glPopMatrix(); glPopMatrix();
drawing = false;
SDL_GL_SwapBuffers(); SDL_GL_SwapBuffers();
} }
extern (C) Uint32 timer_callback(Uint32 interval, void *param)
{
if (!drawing)
{
SDL_Event event;
event.type = SDL_USEREVENT;
SDL_PushEvent(&event);
}
return interval;
}
int main(char[][] args) int main(char[][] args)
{ {
DerelictSDL.load(); DerelictSDL.load();
@ -76,20 +62,19 @@ int main(char[][] args)
init(); init();
SDL_Event event; SDL_Event event;
SDL_AddTimer(1000 / 60, &timer_callback, null); for (;;)
while (SDL_WaitEvent(&event))
{ {
if (event.type == SDL_QUIT) if (SDL_PollEvent(&event))
break;
else if (event.type == SDL_KEYDOWN)
{ {
if (event.key.keysym.sym == SDLK_ESCAPE) if (event.type == SDL_QUIT)
break; break;
else if (event.type == SDL_KEYDOWN)
{
if (event.key.keysym.sym == SDLK_ESCAPE)
break;
}
} }
else if (event.type == SDL_USEREVENT) display();
{
display();
}
} }
SDL_Quit(); SDL_Quit();