Re: compiling gtk apps on windows using gcc

[Hubert Sokolowski <h sokolowski wsisiz edu pl>]

On Mon, 6 Sep 2004 22:08:46 +0000
Tor Lillqvist <tml iki fi> wrote:

> Hubert Sokolowski writes:
>  > I am developing a gtk application. I found that on windows it runs
>  > slowly then on linux.
>
> On identical machines? What kind of speed differences are you seeing?
> tens of percents? Orders of magnitude?
yes, on the same machine. I don't know how to compare it, but it is
visible. for example my program draw points and lines between these
points. when a user drags a point, it is redrawn. on linux it runs
smoothly when user moves a point, but on windows (the same machine) it
whips and does not draw smoothly.


>  > It is visible when my application draws lines and rectangles to
>  > GdkPixmap
>
> As an X11 graphics context (GC) (which is what GdkGC's are closely
> modelled upon) doesn't map well to a Windows device context (DC),
> gdk/win32 has to do quite a lot of things for each gdk_draw_*().
>
> For gdk/x11 it's much simpler, the simple gdk_draw_line() etc calls
> map more or less directly to X11 protocol requests.
>
> A GTK+ application that draws *lots* of lines, rectangles etc will
> presumably be significantly slower on win32. (No, I don't have any
> hard numbers to back up this.) Sorry, really not much one can do about
> it.
Have anyone tried to make some tests with gtk compiled with visual c++
or other c compiler on windows? I have heard that programs compiled with
gcc runs slower on windows then the same program compiled with visual
c++. Please don't get me wrong, I really love open source software and
have written some programs licensed with GPL, even quite usefull for
some people:).


-- 
Greetings,
Hubert Sokolowski