Window Resizing : can't figure out what I'm doing wrong

Graphics and GPU Programming Programming

Started by Toonkides November 09, 2004 01:01 AM

7 comments, last by Toonkides 19 years, 5 months ago

Toonkides

122

Author

November 09, 2004 01:01 AM

Within my Renderscene function I have this code.


switch(g_pd3dDevice->TestCooperativeLevel())
	{
	case D3DERR_DEVICELOST :
		Cleanup() ;
		return ;

	case D3DERR_DEVICENOTRESET :
		// release the objects
		if(g_pVB != NULL)
			g_pVB->Release() ;

		if(g_pTexture[0] != NULL)
			g_pTexture[0]->Release() ;
	
		if(g_pTexture[1] != NULL)
			g_pTexture[1]->Release() ;

		// reset the device
		g_pd3dDevice->Reset(&d3dpp) ;

		// recreate and initialize the objects
		ZeroMemory(&d3dpp, sizeof(d3dpp)) ;
		d3dpp.Windowed					= TRUE ;
		d3dpp.SwapEffect				= D3DSWAPEFFECT_DISCARD ;
		d3dpp.BackBufferWidth			= g_width ;
		d3dpp.BackBufferHeight			= g_height ;
		d3dpp.BackBufferFormat			= D3DFMT_UNKNOWN ;
		d3dpp.EnableAutoDepthStencil	= TRUE ;
		d3dpp.AutoDepthStencilFormat	= D3DFMT_D16 ;

		// create the D3DDevice
		if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, g_hWnd,
			D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice)))
			return ;

		// turn of culling
		g_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE) ;
		// turn off D3D lighting
		g_pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE) ;
		// turn on the zbuffer
		g_pd3dDevice->SetRenderState(D3DRS_ZENABLE, TRUE) ;
		g_pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE) ;
		InitGeometry() ;
		break ;
	}

In my Message Proc I have this code :


case WM_SIZE :
		GetClientRect(hWnd, &rc) ;
		g_width = rc.right - rc.left ;		// reset the width
		g_height = rc.bottom - rc.top ;		// reset the height
		return 0 ;

I have tried releasing->reseting->recreating/initializing the objects within the WM_SIZE message but then the application doesn't even load. Any suggestions? TIA

Oluseyi

2,123

November 09, 2004 01:08 AM

Use the debugger and step through your code.

Toonkides

122

Author

November 09, 2004 01:21 AM

never learned the thing :(, but the program actually runs, it's just not showing anything on the screen.

In the WM_SIZE message I "SAFERELEASE()" all the objects
then I test the coop levels in the render function which resets the device then I recreate my objects.

What could be wrong?

jaxson

127

November 09, 2004 01:38 AM

I once had a similar sounding problem and it was because I was using the D3DXFont class and I was forgetting to reset it as well. So, if you are using any of those D3DX helper classes, make sure you call their reset methods.

Endurion

5,545

November 09, 2004 02:10 AM

Also, make a special case in WM_SIZE. Sometimes you get WM_SIZE called on startup with size 0 by 0. Reset will not work if you try to create a backbuffer of width or height = 0.

Fruny: Ftagn! Ia! Ia! std::time_put_byname! Mglui naflftagn std::codecvt eY'ha-nthlei!,char,mbstate_t>

Toonkides

122

Author

November 09, 2004 11:37 PM

My program is very basic actually it just loads a few points into the VB and applies a texture to them as well.

No fonts.

I didn't know about the WM_SIZE on startup, how do I get around this ?

TIA

Oluseyi

2,123

November 10, 2004 12:33 AM

Quote:Original post by Toonkides
I didn't know about the WM_SIZE on startup, how do I get around this ?

case WM_SIZE:  if(0 == (rc.left - rc.right) || 0 == (rc.bottom - rc.top))    return 0;  // the rest here

Toonkides

122

Author

November 10, 2004 02:52 AM

After trying that I also noticed that when i put a messagebox call within my render scene :

switch(g_pd3dDevice->TestCooperativeLevel())	{	case D3DERR_DEVICELOST :		Cleanup() ;		return ;	case D3DERR_DEVICENOTRESET :                MessageBox(NULL, TEXT("TEST"), TEXT("TESTING"), MB_OK) ;		// reset the device		g_pd3dDevice->Reset(&d3dpp) ;		// turn of culling		g_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE) ;		// turn off D3D lighting		g_pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE) ;		// turn on the zbuffer		g_pd3dDevice->SetRenderState(D3DRS_ZENABLE, TRUE) ;		g_pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE) ;		// recreate and initialize the objects		d3dpp.BackBufferWidth			= g_width ;		d3dpp.BackBufferHeight			= g_height ;		// create the D3DDevice		if(FAILED(g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, g_hWnd,			D3DCREATE_HARDWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice)))			return ;		InitGeometry() ;		break ;	}

And it's not even executing. I thought that when you release all the objects the testcoop will automatically be setup for the device not reset. Am I missing something obvious?

Toonkides

122

Author

November 10, 2004 04:14 AM

I figured it out :

It turns out that if I went to my original configuration this would have worked. My problem was exactly what Endurion & Oluseyi were saying.

Thx guys, sorry to spam the boards; it was a journey!

<3

Window Resizing : can't figure out what I'm doing wrong

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