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makes gears work with swtcl
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Thanks to Panagiotis Papadakos for reporting it.
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Need to turn off FRAG_BIT_COL0 in swrast->_ActiveAttribMask when doing
glRead/CopyPixels to prevent the user's colors from getting overwritten
when a fragment program is active.
This was happening in the DRI drivers when MaintainTexEnv program was
used (the texenv fragment program was enabled when _swrast_DrawPixels was
called).
This still isn't an ideal solution, but fixes things for now.
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now have gears going.. + a few other trivial textured demoes
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It's OK to use _TexEnvProgram regardless of the texture state, but if fog
is also enabled, the fragment program is lacking the actual fog computation
so fogging doesn't appear.
Fixing this might involve a new _MaintainFogProgram field and related code.
For now, just disable the _TexEnvProgram and let swrast handle everything.
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problem)
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a goto
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state validation/update.
Note that we're still temporarily skipping the test for an active fragment
program. Need to fix shadow2D() ...
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This fixes the depth-peel regression reported by Brad King.
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an app issue, not a mesa bug.
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