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with another, such as wrapping a hardware/win-sys RGB renderbuffer with a
software-based alpha buffer.
Previous alpha buffer wrapping was conflicting with the X driver's
xmesa_renderbuffer structure containment/inheritance. That lead to
memory corruption.
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sets the texture wrap mode and texture filter mode for Savage4 to the new
functions savage4_set_wrap_mode and savage4_set_filter_mode.
This was tested with texwrap and tunnel.
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BlueBits, etc fields.
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Use _swrast_get_values() which does clipping.
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No need to pass the texture unit number as an argument.
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with GLboolean in a few places.
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adaptor functions.
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from the gl_texture_format's functions.
Added "adaptor" functions to allow sampling a float-valued texture with
GLchans and vice versa. This will allow trimming down the number of
texture fetch routines.
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s_texcombine.c - for texture combining/application
s_texfilter.c - for texture sampling/filtering
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