Game::Game()
: time(get_Timer().get_time()), ticks_passed(0), fps(END_OF_TIME), fps_next(0)
#ifndef NDEBUG
, m_console_active(false)
#endif
{
}
void Video_GL::render_all() {
assert(!m_render_target);
#ifdef _WINDOWS
glFlush();
#else
glFinish();
#endif
get_Textures().unlose_resources();
get_Fonts().unlose_resources();
get_Game().prerender();
glViewport(0, 0, get_screen_width(), get_screen_height());
if(!is_zwrite_enabled())
glDepthMask(GL_TRUE);
set_clear_color_impl(get_clear_color());
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if(!is_zwrite_enabled())
glDepthMask(GL_FALSE);
get_Game().render();
/*** Begin CPU saver ***/
#ifdef MANUAL_GL_VSYNC_DELAY
Timer &tr = get_Timer();
if(get_vertical_sync()) {
Time buffer_swap_start_time = tr.get_time();
const unsigned int time_allowed = 1000u/60u - 2u;
const unsigned int new_time_taken = buffer_swap_start_time.get_ticks_since(m_buffer_swap_end_time);
m_time_taken = (1.0f - m_weight_new) * m_time_taken + m_weight_new * new_time_taken;
if(m_time_taken < time_allowed)
SDL_Delay(static_cast<unsigned int>(time_allowed - m_time_taken));
}
#endif
/// Swap the buffers <-- NOT part of the CPU saver, but the reason it is "needed"
#if SDL_VERSION_ATLEAST(1,3,0)
SDL_GL_SwapWindow(get_window());
#else
SDL_GL_SwapBuffers();
#endif
#ifdef MANUAL_GL_VSYNC_DELAY
m_buffer_swap_end_time = tr.get_time();
#endif
}
