8C07FE68 WARN Accumulation buffer not supported

[Jae686]

Good evening.
After making a git pull and rebuilding KOS, my code, that previously worked, throws the following errors on lxdream :

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Descobertos 16 ficheiros para carregar
rewinddir: call ignored
A carregar o .png 
inside add_texture: 
string duplicada overlay 
WIDTH : 512, HEIGHT : 64
H: 64 	 W: 512
texture loaded into memory : rd/overlay.png
PERCENT LOADED : 0.062500 
PERCENT LOADED : 0.125000 
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
inside add_texture: 
string duplicada bw 
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
21:32:51 8C07FE68 WARN  Accumulation buffer not supported
WIDTH : 256, HEIGHT : 256

KOS GL ERROR THROWN BY FUNCTION: glTexImage2D

KOS GL ERROR: GL_INVALID_OPERATION
#txtldr ok
H: 256 	 W: 256
texture loaded into memory : rd/bw.pcx
PERCENT LOADED : 0.187500 
21:32:52 8C07FE68 WARN  Accumulation buffer not supported
21:32:52 8C07FE68 WARN  Accumulation buffer not supported
21:32:52 8C07FE68 WARN  Accumulation buffer not supported
21:32:52 8C07FE68 WARN  Accumulation buffer not supported

After seeing the KOS GL ERROR , I've pulled and rebuilt libgl, but with no success.

Any thoughts on what caused this?

[bogglez]

That's an error in lxdream it seems: https://bitbucket.org/bogglez/lxdream/s ... ter#cl-205

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 int srcblend = POLY2_SRC_BLEND(poly2);
     int destblend = POLY2_DEST_BLEND(poly2);
     glBlendFunc( srcblend, destblend );

     if( POLY2_SRC_BLEND_TARGET(poly2) || POLY2_DEST_BLEND_TARGET(poly2) ) {
         WARN( "Accumulation buffer not supported" );
     } 

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#define POLY2_DEST_BLEND(poly2) ( pvr2_poly_dstblend[((poly2)>>26)&0x07] )

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int pvr2_poly_dstblend[8] = {
        GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR,
        GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_DST_ALPHA,
        GL_ONE_MINUS_DST_ALPHA };

I don't know why you get that error in glTexImage2D, it has nothing to do with the accumulation buffer..
I grepped this call in your code however:

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glBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_ALPHA );

Does commenting it out make your problem disappear?

[bogglez]

Seems to be caused by

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pvr_poly_cxt_t c;
c.blend.src_enable = PVR_BLEND_ENABLE;

[Jae686]

Seems to be caused by

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pvr_poly_cxt_t c;
c.blend.src_enable = PVR_BLEND_ENABLE;

But was it caused by the latest KOS commit ?

Commenting out the

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 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

Does not change anything.

The errors related to libgl......they were not there before. (and I do "make clean" a lot during development).

[Jae686]

Reverting the KOS to

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git checkout a17ed9

Made it work fine again.

[BlueCrab]

Try going back to the current revision, but doing a "make clean" on all of KOS, libgl, and your code, then rebuilding each (in the same order, of course). I have a feeling that one of those was not re-built after commit b38b50, which added stuff to the pvr_poly_cxt_t structure (which could very well be causing something to get screwed up along the way like what is happening to your code).

[bogglez]

Try going back to the current revision, but doing a "make clean" on all of KOS, libgl, and your code, then rebuilding each (in the same order, of course). I have a feeling that one of those was not re-built after commit b38b50, which added stuff to the pvr_poly_cxt_t structure (which could very well be causing something to get screwed up along the way like what is happening to your code).

I also believe that he's now writing to the wrong member in the pvr_poly_cxt_t struct, but he said he cleaned everything. Maybe he forgot something

[Jae686]

Good Afternoon.
Thank you for your replies.


After I did

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git checkout HEAD

and performed

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 make clean

and

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 make 

On KOS-BASE and KOS-PORTS/libgl, it compiled and worked fine.

Although now git pull states that I'm currently not on a branch.

Best Regards !

[BlueCrab]

Run "git pull origin master" and that message from git should be fixed.