// Enter the message loop
MSG msg;
ZeroMemory( &msg, sizeof(msg) );
while( msg.message!=WM_QUIT )
{
if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
else
if (game.active)
{
game.StepGame();
}
else
{
game.timer.stop();
WaitMessage();
}
}
process timing
Author
Hi,
I use simple message loop which is nearly the same in the SDK samples. Following is my message loop.
When I run the program when winamp is running, CPU usage of winamp goes to %30 and my program looses its smoothness( Its like it does not draw some of the frames).
Interestingly if Visual C is running at the same time no such thing happens. I installed last version and patches Winamp and VC nothing changed.
If you encounter such a problem please help me. I dont want to debug my code for hours to find the problem...
How about something like this:
[edited by - adiash on October 9, 2003 2:56:38 AM]
// Enter the message loop MSG msg; ZeroMemory( &msg, sizeof(msg) ); while( 1 ) { if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) ) { if (msg.message == WM_QUIT) return 0; TranslateMessage( &msg ); DispatchMessage( &msg ); } else if (game.active) { game.StepGame(); } else { game.timer.stop(); } }[edited by - adiash on October 9, 2003 2:56:38 AM]
Author
I think it does not change anything.
you only reorganized the code but no addition ,no change.
Btw, I added some Sleep(1) function in the game.StepGame()
function the problem doesnt appears but with the half frame rate
.
I think there is some CPU time fighting with winamp.
you only reorganized the code but no addition ,no change.
Btw, I added some Sleep(1) function in the game.StepGame()
function the problem doesnt appears but with the half frame rate
.I think there is some CPU time fighting with winamp.
What type of optimization are you using? adiash''s code is missing WaitMessage() and I''m not sure having the check later on would really cause 30% more cpu usage.
Author
I tried it but it does not solve my problem.
Also it is only called when my program is
deactivated. So in main rendering loop it is
never called.
I use the optimization of maximize
speed in Visual C++ 6.0.
Also it is only called when my program is
deactivated. So in main rendering loop it is
never called.
I use the optimization of maximize
speed in Visual C++ 6.0.
I actully thought that waitmessage is the problem. If you have a game loop, then you definitely do not want to wait for a message. Rather, you want to keep a steady pace of rendering (e.g. 30 FPS). Anyway, sorry I can''t help more.
Author
What I do not understand is when I run Visual C once , the problem never appears again even if I close VC. Until I reboot of course.
btw I see %53 cpu usage of winamp. But when I close my program it drops to %0-1. It makes me nervous.
[edited by - beehorf on October 9, 2003 5:02:04 AM]
btw I see %53 cpu usage of winamp. But when I close my program it drops to %0-1. It makes me nervous.
[edited by - beehorf on October 9, 2003 5:02:04 AM]
Are you using any visul plugins with Winamp? I''ve noticed that some DX apps don''t "play nice" when run concurrently.
For example, if I have my 3d model converter open (which uses a D3D preview window) while I try to run my game, I notice about a %15-%30 percent drop in framerate -- even if the converter is minimized.
---
http://www.gapingwolf.com
For example, if I have my 3d model converter open (which uses a D3D preview window) while I try to run my game, I notice about a %15-%30 percent drop in framerate -- even if the converter is minimized.
---
http://www.gapingwolf.com
Author
hi,
Yes it was my problem. Winamp uses directx to display visual plugins i think. I tryed it with windowed direcx sdk examples they suffered from this problem too.
Minimizing winamp or some application like Visual C++ that hides winamp solves the problem. That is why when running under VC the problem is not observed.
Thanks all...
be yourself.
quote:Are you using any visul plugins with Winamp? I''ve noticed that some DX apps don''t "play nice" when run concurrently.
For example, if I have my 3d model converter open (which uses a D3D preview window) while I try to run my game, I notice about a %15-%30 percent drop in framerate -- even if the converter is minimized.
---
http://www.gapingwolf.com
Yes it was my problem. Winamp uses directx to display visual plugins i think. I tryed it with windowed direcx sdk examples they suffered from this problem too.
Minimizing winamp or some application like Visual C++
that hides winamp solves the problem. That is why when running under VC the problem is not observed. Thanks all...
be yourself.
This topic is closed to new replies.
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