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Loading a texture from raw data?

Started by DvDmanDT Jan 8, 2005 at 1:05 PM 2 replies 850+ views

Original Post

Jan 8, 2005 at 1:05 PM

How can I load a texture from raw data? Meaning a fileformat without a header or a custom format.. I know the size of it (256x256), and the data is stored in A8R8G8B8 format, uncompressed.. Basicly, it just needs to be copied onto the texture (the texture is created with D3DXCreateTexture, and has A8R8G8B8 as format).. So, how to do it? I thought about just locking the texture, but that doesn't work if the data is in video memory (which is what I want it to be).. Should I create a temporary texture in system memory, memcpy the data there, unlock, then UpdateTexture on it? Or will that fail too? All help appriciated..

Endurion

Jan 8, 2005 at 1:30 PM

You listed one of two ways already:

Either create a temporary texture in system memory and copy from there, or create the target texture in the managed pool, so Direct3d will do the copying to video memory automagically.

DvDmanDT

Jan 8, 2005 at 1:50 PM

Managed pool means .NET, doesn't it? Not that way then.. I want to stay away from .NET another while..

So..
CreateTexture, D3DPOOL_SYSTEMMEM as pool? Then Texture->LocRect, and just memcpy to the pointer returned, then unlock, then UpdateTexture?

DrunkenHyena

Jan 8, 2005 at 3:37 PM

The Managed Pool and Managed DirectX have nothing to do with each other. It's just a coincidence of naming.

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