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The function just returns the hard-coded value (0x5555) even though we have no
idea what this means...
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The r300EmitVec functions don't touch the buf member so the assertion isn't
needed here.
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This required moving the r300Enable function but there are no actual changes.
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I think this is correct, assuming no endian issues. See commmit
59a08923f51d4ed83effbfcd91473c9ee86465f1.
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Supposedly you need to set these values for the interpolaters to work, but they
seem to work fine without these values.
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ctx->Point._Attentuation was computed in wrong place and the VB->Eye coord Z
array wasn't indexed correctly in run_point_stage().
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Only build tested for I830 generation.
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To be used by AIGLX for GLX_EXT_texture_from_pixmap without several
additional data copies.
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Only build tested.
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Change the generated vertex programs (tnl/brw) to follow the same logic as
the tnl fog wrt using absolute value, and sync them up a bit (untested).
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Rework tnl fog a bit. Make sure we always use ABS(eyez) when fog coord source
is depth, OTOH it does not seem to be necessary to use it (as was done before
in some cases) if fog coord source is fogcoord (just to save some work).
This fixes tests/fog (the first 2 cases) with i915/i915tex.
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