Hi,
the following fragment of code, show very different performance (and
responsivity) between 1.1.7 and 1.1.8rc3 (and also a lot of recent 1.1.x
releases).
-------------------------------------------
#include <FL/Fl.H>
#include <FL/Fl_Group.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Dial.H>
#include <FL/Fl_Button.H>
#include <stdio.h>
#include <unistd.h>
Fl_Dial *dial = 0;
Fl_Button *but = 0;
static void cb_but(Fl_Widget* in, void* p)
{
but->deactivate();
// start value of "i" was really more small,
// but it's to show the problem
for (int i = 99999; i >= 0; i--)
{
dial->value(i/100000.0);
Fl::check();
}
but->label("Restart");
but->activate();
}
int main(int ac, char **av)
{
Fl_Double_Window* o = new Fl_Double_Window(0, 0, 640, 480, 0);
o->size_range(640, 480, 0, 0, 0, 0, 1);
Fl_Group::current()->resizable(o);
{ Fl_Dial* o = dial = new Fl_Dial(10, 60, 200, 200);
o->box(FL_EMBOSSED_FRAME);
o->type(FL_FILL_DIAL);
o->color(FL_BLUE);
o->selection_color(FL_YELLOW);
o->angle1(180);
o->angle2(-180);
}
{ Fl_Button* o = but = new Fl_Button(10, 300, 60, 60);
o->label("Start");
o->callback(cb_but);
}
o->end();
o->show(ac, av);
return Fl::run();
}
-------------------------------------------
I' don't see evidence of difference using single buffered Window,
but performance using Fl_Double_Window is severely worst using 1.1.x/1.1.8.
I have tested this on linux (openSuse10.2, Xorg 7.2.0rc2),
this was my config command line:
./configure --disable-largefile --enable-shared --enable-xdbe --enable-xft
--enable-threads --enable-localjpeg --enable-localpng --enable-localzlib
The difference is visible, once pressed button "start" and then maximizing the
window.
or may be I'm doing something in the wrong way ?
Thanks
Andrea
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