On my system, compiled with -O2 and reading 960x960 off-screen image takes:
Original: 1.78622s (yes, nearly 1.8 second!!!) New: 0.00931s So the the speed-up factor is 200x. Filled - including code - as STR #2387 Roman Albrecht Schlosser wrote: > On 26.06.2010, at 00:53, Roman Kantor wrote: > >> Anyway, I have written much faster fl_read_image() for windows based on >> GetDIBits() function (original one is bloody slow as it reads data on >> per-pixel basis) so I will submit that as an STR - but it should be >> revised by somebody more familiar with win32 GDI (works for me >> thought)... > > Yes, please! This is a long-standing deficiency. Do you have some > figures about how much faster it is or can be ? > > GetDIBits() looks promising. Looking forward to see this. > > I'd be happy to take a look at it and commit the changes... > > Albrecht _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
