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Bug with loading mipmaps of non-sq textures (w/ Fix)

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Dark_Kilauea

Post subject: Bug with loading mipmaps of non-sq textures (w/ Fix)

Posted: 03.06.2009, 17:34

Joined: 20.01.2008, 07:16
Posts: 15

There is a bug within the DDS loader for the Texture resource. When a non-square texture is used (something like 1024x512 will do it), during mipmap loading, the smaller dimension will be reduced to 0, causing OpenGL to throw an INVALID_OPERATION error. Below I have a small fix that prevents this problem.

In egTextures.cpp, line 326 replace:

Code:

pixels += mipSize;
width >>= 1;
height >>= 1;

with:

Code:

pixels += mipSize;
width >>= 1;
if(width < 1) width = 1;
height >>= 1;
if(height < 1) height = 1;

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marciano

Post subject: Re: Bug with loading mipmaps of non-sq textures (w/ Fix)

Posted: 07.06.2009, 09:56

Engine Developer

Joined: 10.09.2006, 15:52
Posts: 1217

Thanks, this is fixed now.

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