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pspgl flickering triangles

 
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webjeff



Joined: 05 May 2005
Posts: 66
PostPosted: Wed Aug 31, 2005 6:25 am    Post subject: pspgl flickering triangles Reply with quote
I got a real simple demo going with 3 boxes, any more than 1 causes half the box to flicker of 2 of the 3 boxes.

I have tried adding "sceKernelDcacheWritebackAll();" all over but still no success, I also tried OR'ing the address with 0x40000000 but no luck, actually doing that only renders 1 triangle, so I dont see that helping much.... any ideas?

Thanks
Jeff.
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webjeff



Joined: 05 May 2005
Posts: 66
PostPosted: Wed Aug 31, 2005 7:02 am    Post subject: Reply with quote
also on a related note, has anyone tested "GL_UNSIGNED_INT_8_8_8_8" in glTexImage2D to work? I'm getting weird results, that work fine with the data I send in on the PC. Also, GL_UNSIGNED_SHORT_4_4_4_4 works fine it seems, so if someone can confirm it works, thatd be most appreciated.

Thanks again.
Jeff.
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webjeff



Joined: 05 May 2005
Posts: 66
PostPosted: Wed Aug 31, 2005 8:48 am    Post subject: Reply with quote
Can someone test this for the PSPGL:


Code:

UINT __attribute__((aligned(16))) colors[256] =
{
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,
      0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,0xff00ff00,

      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
      0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,0xff0000ff,
};

glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,256,1, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, colors);



Should be 2 colors evenly spaced across a 256 image. But it shows red like 3/4's of the image, not sure why. The UV's are set correctly as well.

Has anyone used glTexImage2D Successfully with GL_UNSIGNED_INT_8_8_8_8?

Thanks
Jeff
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webjeff



Joined: 05 May 2005
Posts: 66
PostPosted: Wed Aug 31, 2005 12:09 pm    Post subject: Reply with quote
OK,

I have finally got it to work, it was a stupid error like always :) So I can confirm that the glTexImage2D is good with GL_UNSIGNED_INT_8_8_8_8.

I am however, still getting flickering triangles, any ideas?

Thanks again, sorry for the multiple posts.
Jeff.
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holger



Joined: 18 Aug 2005
Posts: 204
PostPosted: Wed Aug 31, 2005 7:55 pm    Post subject: Reply with quote
can you please prepare a simple testcase? The demos are running smoothly...
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webjeff



Joined: 05 May 2005
Posts: 66
PostPosted: Thu Sep 01, 2005 7:53 am    Post subject: Reply with quote
Incase any others have this problem, I fixed by doing the following two things:

1) added sceDisplayWaitVblankStart(); at the end of my update loop.

2) aligned my verts to 16 byte boundries.

Then it comes up fine.

Thanks again guys
Jeff.
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holger



Joined: 18 Aug 2005
Posts: 204
PostPosted: Thu Sep 01, 2005 11:02 pm    Post subject: Reply with quote
2) is mandatory right now, vertices are not (yet) repacked for teh DMA transfer

1) should be not required if you set the swap interval to a number greater zero (the initialized default should be one, see pspgl_ge_init.c).
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