void run_example_loop(
const x11::Display& display,
const x11::Window& win,
const glx::Context& ctx,
std::unique_ptr<Example>& example,
ExampleThreadData::Common& common,
ExampleClock& clock,
GLuint width,
GLuint height
)
{
std::cout << "-+-[Begin]" << std::endl;
#if GL_ARB_debug_output && !OGLPLUS_NO_LAMBDAS
ARB_debug_output dbg;
ARB_debug_output::LogSink sink(
[](const ARB_debug_output::CallbackData& data) -> void
{
std::cout << " |" << std::endl;
std::cout << " +-+-[" << data.id << "] '" <<
data.message << "'" << std::endl;
std::cout << " | +---[source] '" <<
EnumValueName(data.source).c_str() << "'" << std::endl;
std::cout << " | +---[type] '" <<
EnumValueName(data.type).c_str() << "'" << std::endl;
std::cout << " | `---[severity] '" <<
EnumValueName(data.severity).c_str() << "'" << std::endl;
}
);
dbg.Control(
DebugOutputARBSource::DontCare,
DebugOutputARBType::DontCare,
DebugOutputARBSeverity::Low,
true
);
dbg.InsertMessage(
DebugOutputARBSource::Application,
DebugOutputARBType::Other,
0,
DebugOutputARBSeverity::Low,
"Starting main loop"
);
#endif // GL_ARB_debug_output
win.SelectInput(
StructureNotifyMask|
PointerMotionMask|
KeyPressMask
);
::Atom wmDelete = ::XInternAtom(display, "WM_DELETE_WINDOW", True);
::XSetWMProtocols(display, win, &wmDelete, 1);
XEvent event;
os::steady_clock os_clock;
bool done = false;
while(!done && !common.failure)
{
while(display.NextEvent(event))
{
switch(event.type)
{
case ClientMessage:
case DestroyNotify:
done = true;
break;
case ConfigureNotify:
width = event.xconfigure.width;
height = event.xconfigure.height;
example->Reshape(
width,
height
);
case MotionNotify:
example->MouseMove(
event.xmotion.x,
height-
event.xmotion.y,
width,
height
);
break;
case KeyPress:
if(::XLookupKeysym(
&event.xkey,
0
) == XK_Escape) done = true;
break;
default:;
}
}
clock.Update(os_clock.seconds());
if(!example->Continue(clock)) break;
example->Render(clock);
ctx.SwapBuffers(win);
}
std::cout << " `-[Done]" << std::endl;
}
void window_loop(
const x11::Window& window,
AppData& app_data,
CommonData& common,
RaytracerTarget& rt_target,
std::size_t n_threads
)
{
Context gl;
Renderer renderer(app_data, rt_target.tex_unit);
renderer.Use(app_data);
Saver saver(app_data);
window.SelectInput(StructureNotifyMask| PointerMotionMask| KeyPressMask);
::XEvent event;
while(!common.Done())
{
if(app_data.verbosity > 0)
{
app_data.logstr()
<< "Rendering cube face "
<< common.Face()
<< std::endl;
}
// clear the raytrace target
rt_target.Clear(app_data);
renderer.InitFrame(app_data, common.Face());
renderer.Render(app_data);
common.context.SwapBuffers(window);
// setup logging period
std::chrono::system_clock::duration log_period;
if(app_data.verbosity > 4)
{
log_period = std::chrono::seconds(1);
}
else if(app_data.verbosity > 3)
{
log_period = std::chrono::seconds(5);
}
else if(app_data.verbosity > 2)
{
log_period = std::chrono::seconds(15);
}
else if(app_data.verbosity > 1)
{
log_period = std::chrono::minutes(1);
}
auto log_time = std::chrono::system_clock::now();
// signal all threads that they can start raytracing tiles
common.master_ready.Signal(n_threads);
while(!common.FaceDone())
{
unsigned slot = 0;
while(common.display.NextEvent(event))
{
switch(event.type)
{
case ClientMessage:
case DestroyNotify:
common.Stop();
break;
case ConfigureNotify:
app_data.render_width = event.xconfigure.width;
app_data.render_height = event.xconfigure.height;
break;
case MotionNotify:
break;
case KeyPress:
if(::XLookupKeysym(&event.xkey, 0) == XK_Escape)
common.Stop();
break;
default:;
}
}
if(common.Done()) break;
if((slot++ % 5) == 0)
{
auto lock = common.Lock();
renderer.Render(app_data);
gl.Finish();
lock.unlock();
common.context.SwapBuffers(window);
}
if(app_data.verbosity > 1)
{
auto now = std::chrono::system_clock::now();
if(log_time + log_period < now)
{
common.LogProgress(app_data);
log_time = now;
}
}
std::chrono::milliseconds period(5);
std::this_thread::sleep_for(period);
}
if(common.Done()) break;
// wait for all raytracer threads to finish
common.thread_ready.Wait(n_threads);
renderer.Render(app_data);
common.context.SwapBuffers(window);
if(app_data.verbosity > 1)
{
app_data.logstr()
<< "Finished cube face "
<< common.Face()
<< std::endl;
}
// save the face image
saver.SaveFrame(app_data, rt_target, common.Face());
// switch the face
common.NextFace(app_data);
// signal that the master is ready to render
// the next face
common.master_ready.Signal(n_threads);
}
}
