[Mesa3d-dev] Re: bug when applying scale and bias

[Stephane C. <Ste...@em...>]

ok, I changed 

GLfloat (*rgba)[4] = (GLfloat (*)[4]) tmpImage + row * width * 4;

to

GLfloat (*rgba)[4] = (GLfloat (*)[4]) (tmpImage + row * width * 4);

(which removes warnings compared to the previous version)

at both line 198 and 230, and it seems to work now.



Stephane Conversy wrote:
> 
> Hello.
> 
> I tried to use glCopyPixels with some scale and bias,
> and I get one-pixel width "stripes" instead of plain rectangles,
> as if line adressing in a pixmap was broken.
> 
> I changed in swrast/s_copypix.c:198
> 
> GLfloat (*rgba)[4] = (GLfloat (*)[4]) tmpImage + row * width * 4;
> 
> for:
> 
> GLfloat (*rgba)[4] = tmpImage + row * width * 4;
> 
> and the bug is fixed. There is a similar statement at line 230,
> I suspect it's buggy as well since convImage is in the same
> format than tmpImage.


--
Stephane Conversy
Ecole des Mines de Nantes