video memory usage

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video memory usage #341766 09/20/10 06:50 09/20/10 06:50
Joined: Feb 2006 Posts: 1,011 Germany pegamode OP Serious User
pegamode OP Serious User Joined: Feb 2006 Posts: 1,011 Germany	Hi, is there a way to get the overall video memory usage? I know there are some d3d_ commands, but: 1) d3d_texfree I'm not sure if it's a bug, but even when starting just an empty main.c "d3d_textfree" always returns a negative value (e.g. -19532830) though in the manual is said that the value should be higher than 0. (I've tested it with the latest A7 Pro and A8 Pro) 2) d3d_texbmaps, d3d_texskins, d3d_texsmaps, d3d_texsurfs The manual says: "Due to swapping and compression, the total value can be remarkably higher than the amount of video memory available on the 3D card." Hmm ... so how can I interpret those values? Is there any chance to get NVIDIA PerfHud running using lite-c? (http://developer.nvidia.com/object/nvperfhud_home.html) I haven't found the time to get a closer look at PerfHud, but I'm not sure if the binding code can be used in lite-c. Regards, Pegamode. Meteor Mess 3D: https://www.meteormess.de Facebook: https://www.facebook.com/MeteorMess3D Twitter: http://www.twitter.com/MeteorMess3D Discord: https://discord.gg/naJJgdMQDV

Re: video memory usage [Re: pegamode] #341769 09/20/10 07:05 09/20/10 07:05
Joined: Jul 2000 Posts: 27,986 Frankfurt jcl Chief Engineer
jcl Chief Engineer Joined: Jul 2000 Posts: 27,986 Frankfurt	A variable gets a negative value when the var range is exceeded. So as long as d3d_texfree is below 0, you have at least 1 GB video memory left. We'll probably replace it with a long variable in a future version, as well as other memory variables.

Re: video memory usage [Re: jcl] #341770 09/20/10 07:11 09/20/10 07:11
Joined: Feb 2006 Posts: 1,011 Germany pegamode OP Serious User
pegamode OP Serious User Joined: Feb 2006 Posts: 1,011 Germany	Is there any way to get the "real" value (e.g. read something from directX into a string)? Currently it would be hard to do something like this: Code: if (d3d_texfree < 10000) { // do something } I could do it like this: Code: if (d3d_texfree < 10000 && d3d_texfree >= 0) { // do something } But it's not a nice code. But it would be more interesting to get the value how much video memory is in use instead of the value how much video memory is left, because this value would be independent from the gfx-card. Is there any way to get good values? Maybe from DirectX? Last edited by pegamode; 09/20/10 07:19. Meteor Mess 3D: https://www.meteormess.de Facebook: https://www.facebook.com/MeteorMess3D Twitter: http://www.twitter.com/MeteorMess3D Discord: https://discord.gg/naJJgdMQDV

Re: video memory usage [Re: pegamode] #341771 09/20/10 07:50 09/20/10 07:50
Joined: Jul 2000 Posts: 27,986 Frankfurt jcl Chief Engineer
jcl Chief Engineer Joined: Jul 2000 Posts: 27,986 Frankfurt	Sure: long mem = ((LPDIRECT3DDEVICE9)pd3ddev)->GetAvailableTextureMem(); printf("Memory at start: %i",mem); ... long mem_used = mem - ((LPDIRECT3DDEVICE9)pd3ddev)->GetAvailableTextureMem(); printf("Memory used: %i",mem_used); GetAvailableTextureMem() is the same as d3d_texfree.

Re: video memory usage [Re: jcl] #341773 09/20/10 09:36 09/20/10 09:36
Joined: Feb 2006 Posts: 1,011 Germany pegamode OP Serious User
pegamode OP Serious User Joined: Feb 2006 Posts: 1,011 Germany	Thanks ... that will help a lot. Meteor Mess 3D: https://www.meteormess.de Facebook: https://www.facebook.com/MeteorMess3D Twitter: http://www.twitter.com/MeteorMess3D Discord: https://discord.gg/naJJgdMQDV

Re: video memory usage [Re: pegamode] #341778
09/20/10 11:37 09/20/10 11:37

Joined: Jun 2009
Posts: 43

MCKiller

Newbie

MCKiller

Newbie

Joined: Jun 2009
Posts: 43

I tried that with the following code:

Code:

#include <acknex.h>
#include <d3d9.h>


FONT* standard_font 	= "Arial#20b";
STRING* memo 		= "not available";

TEXT* dx =
{
  layer = 1;
  pos_x = 400;
  pos_y = 100;
  font  = standard_font;
  string = memo;
  flags = CENTER_X | TRANSLUCENT | SHOW;
	
}

void main() {

	video_mode 	=  8;	
	video_depth 	= 32;		
	fps_max		= 60;
	d3d_texdepth 	=  4;	
	
	
	STRING* tmp	="0";
	
	level_load(NULL);
		
	while(1){
		
		LPDIRECT3DDEVICE9 pd3dDev;
     	        pd3dDev = (LPDIRECT3DDEVICE9)draw_begin();
   
     	        if (!pd3dDev) return;
	
		long mem = (LPDIRECT3DDEVICE9)pd3dDev)->GetAvailableTextureMem();
		
		//printf("freeTextureMem: %i",mem);
	
		str_for_int(tmp,mem);
		str_cpy(memo,tmp);
	
		wait(1);	
	}
	
}

The result is: -1360003072

MSDN says that GetAvailableTextureMem() returns the values in Megabytes?!?

So maybe there is something strange....

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Re: video memory usage [Re: MCKiller] #341811 09/20/10 19:32 09/20/10 19:32
Joined: Feb 2006 Posts: 1,011 Germany pegamode OP Serious User
pegamode OP Serious User Joined: Feb 2006 Posts: 1,011 Germany	I overworked MCKiller's code a bit, but I also get this negative value (btw. the same as if I use d3d_texfree). The code I use: Code: #include <acknex.h> #include <d3d9.h> void main() { video_mode = 8; video_depth = 32; fps_max = 60; d3d_texdepth = 4; level_load(NULL); wait(1); LPDIRECT3DDEVICE9 pd3dDev = (LPDIRECT3DDEVICE9)draw_begin(); if (!pd3dDev) sys_exit("-1"); while(1){ long mem = pd3dDev->GetAvailableTextureMem(); draw_text(str_printf(NULL, "freemem: %d",mem),10,10,COLOR_RED); wait(1); } } Any hint??? Regards, Pegamode. Meteor Mess 3D: https://www.meteormess.de Facebook: https://www.facebook.com/MeteorMess3D Twitter: http://www.twitter.com/MeteorMess3D Discord: https://discord.gg/naJJgdMQDV

Re: video memory usage [Re: pegamode] #341813 09/20/10 19:43 09/20/10 19:43
Joined: Feb 2006 Posts: 1,011 Germany pegamode OP Serious User
pegamode OP Serious User Joined: Feb 2006 Posts: 1,011 Germany	I changed the draw_text line from Code: draw_text(str_printf(NULL, "freemem: %d",mem),10,10,COLOR_RED); to Code: draw_text(str_printf(NULL, "freemem: %u",mem),10,10,COLOR_RED); The value I see now could be the right one ... I will check it out a little further. Meteor Mess 3D: https://www.meteormess.de Facebook: https://www.facebook.com/MeteorMess3D Twitter: http://www.twitter.com/MeteorMess3D Discord: https://discord.gg/naJJgdMQDV

Re: video memory usage [Re: pegamode] #341819 09/20/10 20:01 09/20/10 20:01
Joined: Jun 2009 Posts: 43 MCKiller Newbie
MCKiller Newbie Joined: Jun 2009 Posts: 43	For me, too. That make sense. In the MSDN for directx they use an UINT. Meteor Mess 3D: http://www.vampyregames.de Google+: https://plus.google.com/107877130366298571733/posts Facebook: https://www.facebook.com/MeteorMess3D Twitter: http://www.twitter.com/MeteorMess3D

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