Copying surface to backbuffer?

IDirect3DSurface9 *surface;//Declare surface
	D3DXIMAGE_INFO picturedata;//Declare structure to hold picture information
	HRESULT h = D3DXGetImageInfoFromFile(file,&picturedata);//Get information from picture file
	if (FAILED(h)) {
		string debugstring = "Couldn''t get image info: ";
		debugstring += ErrorCodeRet(h);
		debugger.LogMessage("draw::LoadSurface",debugstring,logger::MSG_ERROR);
		return h;
	}
	//Create surface with information obtained from file
	h = device->CreateOffscreenPlainSurface(
		picturedata.Width,
		picturedata.Height,
		picturedata.Format,
		D3DPOOL_SYSTEMMEM,
		&surface,
		NULL);
	
	//Load file data into surface
	int check = D3DXLoadSurfaceFromFile(surface,NULL,NULL,file,NULL,D3DX_DEFAULT,background,NULL);
	if (FAILED(check)) {
		string debugstring = "Couldn''t load picture: ";
		debugstring+=file;
		debugstring+=": ";
		debugstring+=ErrorCodeRet(check);
		debugger.LogMessage("draw::LoadSurface",debugstring,logger::MSG_ERROR);
	}
 

quote:

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Original post by S1CA
1) Link your application with D3DX9D.LIB instead of D3DX9.LIB.
Note the extra ''D'', that''s the Debug version of the D3DX library - it has more extensive parameter checking as well as more descriptive debug error reports.

2) Run your application in a debugger. If you''re using MSVC, press F5 or go to the Debug->Start menu option. Alternatively run a debug event viewer such as dbmon.exe which comes with the DirectX SDK or DebugView from http://www.sysinternals.com

3) Once the problem has occurred, look at the Output pane in MSVC or the output in the logger; usually D3DX will provide a more detailed description of WHY it returned an D3DERR_INVALIDCALL error.

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Simon O''Connor
Game Programmer &
Microsoft DirectX MVP

[edited by - s1ca on April 18, 2004 1:57:15 AM]

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