Gl_saver saver; //HACK this kinda complicates things as GL_saver depends on GlobalInfo and FlurryCluster init's GlobalInfo :P
#endregion Fields
#region Constructors
/*
* Note: the Flurry base code keeps everything in a global variable named
* info. We want to instance it, for multimon support (several separate
* Flurries), so we allocate several such structures, but to avoid changing
* the base code, we set info = current->globals before calling into it.
* Obviously, not thread safe.
*/
public FlurryCluster(FlurryClusterSpec spec)
{
saver=new Gl_saver();//HACK I dont know if this is correct to initilize GL_saver for every cluster ? Doesn't OpenGL go nutties a little bit?
saver.OTSetup();
oldFrameTime = saver.TimeInSecondsSinceStart();
flurryData = FlurryAlloc(spec);
// specialize
//flurryData.numStreams = spec.nStreams;
//flurryData.currentColorMode = (Types.ColorModes)spec.color;
//flurryData.streamExpansion = spec.thickness;
//flurryData.star.rotSpeed = spec.speed;
}
/*
* Note: the Flurry base code keeps everything in a global variable named
* info. We want to instance it, for multimon support (several separate
* Flurries), so we allocate several such structures, but to avoid changing
* the base code, we set info = current->globals before calling into it.
* Obviously, not thread safe.
*/
public FlurryCluster(FlurryClusterSpec spec)
{
saver = new Gl_saver(); //HACK I dont know if this is correct to initilize GL_saver for every cluster ? Doesn't OpenGL go nutties a little bit?
saver.OTSetup();
oldFrameTime = saver.TimeInSecondsSinceStart();
flurryData = FlurryAlloc(spec);
// specialize
//flurryData.numStreams = spec.nStreams;
//flurryData.currentColorMode = (Types.ColorModes)spec.color;
//flurryData.streamExpansion = spec.thickness;
//flurryData.star.rotSpeed = spec.speed;
}
public void AnimateOneFrame()
{
// make this flurry cluster current
BecomeCurrent();
// Calculate the amount of progress made since the last frame
// The Flurry core code does this itself, but we do our own calculation
// here, and if we don't like the answer, we adjust our copy and then
// tell the timer to lie so that when the core code reads it, it gets
// the adjusted value.
//double newFrameTime = saver.TimeInSecondsSinceStart();
double newFrameTime = saver.TimeInSecondsSinceStart(g_delay);
double deltaFrameTime = newFrameTime - oldFrameTime;
if (Types.iMaxFrameProgressInMs > 0)
{
double maxFrameTime = Types.iMaxFrameProgressInMs / 1000.0;
double overtime = deltaFrameTime - maxFrameTime;
if (overtime > 0)
{
//_RPT3(_CRT_WARN, "Delay: hiding %g seconds (last=%g limit=%g)\n",
// overtime, deltaFrameTime, maxFrameTime);
//TimeSupport_HideHostDelay(overtime);
g_delay += overtime;
deltaFrameTime -= overtime;
newFrameTime -= overtime;
}
}
oldFrameTime = newFrameTime;
// dim the existing screen contents
Gl.glBlendFunc(Gl.GL_SRC_ALPHA, Gl.GL_ONE_MINUS_SRC_ALPHA);
Gl.glColor4d(0.0, 0.0, 0.0, 3.0 * deltaFrameTime); //HACK changed 5.0* deltaFrameTime to 1.0*delta...
Gl.glRectd(0, 0, saver.info.sys_glWidth, saver.info.sys_glHeight);
// then render the new frame blended over what's already there
saver.GLRenderScene();
Gl.glFlush();
}