(cherry picked from commit 4be7296bfc)

pixel.c is just the API-related code now.

(cherry picked from commit 5f91007f99)

(cherry picked from commit b36e6f0baf)

Without these we can find ourselves in _mesa_load_state_parameters()
computing derived lighting/material values whhen the current material
properties haven't been updated from the VBO.
This may be a somewhat wide-spread problem that needs more attention...
(cherry picked from commit 49adf51eee)

Found By: Tinderbox

adjust it and make it behave like it used to

don't dirty the fb if we're rebining the frontbuffer

We originally piggy-backed gallium development in the X11/swrast driver,
but the necessary code has since been moved to its own location in
gallium/winsys/xlib.

Remove the old code from here as we don't want it propogated back to master
in any future merge.

Remove git droppings we've accumulated somehow.

This isn't present on master, so probably shouldn't be here either.

Cherry-picked from gallium-0.1

Conflicts:

	src/glu/sgi/libnurbs/interface/bezierEval.h
	src/glu/sgi/libnurbs/interface/bezierPatch.h
	src/glu/sgi/libnurbs/interface/bezierPatchMesh.h
	src/glu/sgi/libnurbs/internals/dataTransform.h
	src/glu/sgi/libnurbs/internals/displaymode.h
	src/glu/sgi/libnurbs/internals/sorter.h
	src/glu/sgi/libnurbs/nurbtess/definitions.h
	src/glu/sgi/libnurbs/nurbtess/directedLine.h
	src/glu/sgi/libnurbs/nurbtess/gridWrap.h
	src/glu/sgi/libnurbs/nurbtess/monoChain.h
	src/glu/sgi/libnurbs/nurbtess/monoPolyPart.h
	src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h
	src/glu/sgi/libnurbs/nurbtess/partitionX.h
	src/glu/sgi/libnurbs/nurbtess/partitionY.h
	src/glu/sgi/libnurbs/nurbtess/polyDBG.h
	src/glu/sgi/libnurbs/nurbtess/polyUtil.h
	src/glu/sgi/libnurbs/nurbtess/primitiveStream.h
	src/glu/sgi/libnurbs/nurbtess/quicksort.h
	src/glu/sgi/libnurbs/nurbtess/rectBlock.h
	src/glu/sgi/libnurbs/nurbtess/sampleComp.h
	src/glu/sgi/libnurbs/nurbtess/sampleCompBot.h
	src/glu/sgi/libnurbs/nurbtess/sampleCompRight.h
	src/glu/sgi/libnurbs/nurbtess/sampleCompTop.h
	src/glu/sgi/libnurbs/nurbtess/sampleMonoPoly.h
	src/glu/sgi/libnurbs/nurbtess/sampledLine.h
	src/glu/sgi/libnurbs/nurbtess/searchTree.h
	src/glu/sgi/libnurbs/nurbtess/zlassert.h
	src/glu/sgi/libutil/error.c
	src/glu/sgi/libutil/glue.c
	src/glu/sgi/libutil/gluint.h
	src/glu/sgi/libutil/project.c
	src/glu/sgi/libutil/registry.c
	src/glx/x11/glxclient.h
	src/glx/x11/glxext.c
	src/mesa/drivers/dri/ffb/ffb_dd.h
	src/mesa/drivers/dri/ffb/ffb_points.h
	src/mesa/drivers/dri/gamma/gamma_context.h
	src/mesa/drivers/dri/gamma/gamma_macros.h
	src/mesa/drivers/dri/i810/i810context.h
	src/mesa/drivers/dri/r128/r128_dd.h
	src/mesa/drivers/dri/tdfx/tdfx_dd.h

Eliminate a couple of differences with gallium-0.2

Conflicts:

	include/GLES/egl.h
	include/GLES/egltypes.h
	src/egl/main/eglconfig.c
	src/egl/main/eglconfig.h
	src/glu/sgi/libnurbs/interface/bezierEval.h
	src/glu/sgi/libnurbs/interface/bezierPatch.h
	src/glu/sgi/libnurbs/interface/bezierPatchMesh.h
	src/glu/sgi/libnurbs/internals/dataTransform.h
	src/glu/sgi/libnurbs/internals/displaymode.h
	src/glu/sgi/libnurbs/internals/sorter.h
	src/glu/sgi/libnurbs/nurbtess/definitions.h
	src/glu/sgi/libnurbs/nurbtess/directedLine.h
	src/glu/sgi/libnurbs/nurbtess/gridWrap.h
	src/glu/sgi/libnurbs/nurbtess/monoChain.h
	src/glu/sgi/libnurbs/nurbtess/monoPolyPart.h
	src/glu/sgi/libnurbs/nurbtess/monoTriangulation.h
	src/glu/sgi/libnurbs/nurbtess/partitionX.h
	src/glu/sgi/libnurbs/nurbtess/partitionY.h
	src/glu/sgi/libnurbs/nurbtess/polyDBG.h
	src/glu/sgi/libnurbs/nurbtess/polyUtil.h
	src/glu/sgi/libnurbs/nurbtess/primitiveStream.h
	src/glu/sgi/libnurbs/nurbtess/quicksort.h
	src/glu/sgi/libnurbs/nurbtess/rectBlock.h
	src/glu/sgi/libnurbs/nurbtess/sampleComp.h
	src/glu/sgi/libnurbs/nurbtess/sampleCompBot.h
	src/glu/sgi/libnurbs/nurbtess/sampleCompRight.h
	src/glu/sgi/libnurbs/nurbtess/sampleCompTop.h
	src/glu/sgi/libnurbs/nurbtess/sampleMonoPoly.h
	src/glu/sgi/libnurbs/nurbtess/sampledLine.h
	src/glu/sgi/libnurbs/nurbtess/searchTree.h
	src/glu/sgi/libnurbs/nurbtess/zlassert.h
	src/glu/sgi/libutil/error.c
	src/glu/sgi/libutil/glue.c
	src/glu/sgi/libutil/gluint.h
	src/glu/sgi/libutil/project.c
	src/glu/sgi/libutil/registry.c
	src/glx/x11/Makefile
	src/glx/x11/glxclient.h
	src/glx/x11/glxext.c
	src/mesa/drivers/dri/ffb/ffb_dd.h
	src/mesa/drivers/dri/ffb/ffb_points.h
	src/mesa/drivers/dri/gamma/gamma_context.h
	src/mesa/drivers/dri/gamma/gamma_macros.h
	src/mesa/drivers/dri/i810/i810context.h
	src/mesa/drivers/dri/r128/r128_dd.h
	src/mesa/drivers/dri/r128/r128_tex.h
	src/mesa/drivers/dri/tdfx/tdfx_dd.h
	src/mesa/drivers/x11/xm_buffer.c
	src/mesa/glapi/glapi.c
	src/mesa/main/dispatch.c
	src/mesa/main/state.c
	src/mesa/main/texstate.c
	src/mesa/shader/arbprogparse.c
	src/mesa/shader/arbprogram.c
	src/mesa/shader/nvfragparse.c
	src/mesa/shader/nvprogram.c
	src/mesa/shader/shader_api.c
	src/mesa/sources
	src/mesa/swrast/s_aaline.c
	src/mesa/swrast/s_aaline.h
	src/mesa/swrast/s_aatriangle.h
	src/mesa/swrast/s_accum.c
	src/mesa/swrast/s_alpha.h
	src/mesa/swrast/s_bitmap.c
	src/mesa/swrast/s_blend.h
	src/mesa/swrast/s_context.c
	src/mesa/swrast/s_copypix.c
	src/mesa/swrast/s_depth.c
	src/mesa/swrast/s_depth.h
	src/mesa/swrast/s_drawpix.c
	src/mesa/swrast/s_drawpix.h
	src/mesa/swrast/s_feedback.c
	src/mesa/swrast/s_feedback.h
	src/mesa/swrast/s_fog.h
	src/mesa/swrast/s_lines.h
	src/mesa/swrast/s_logic.h
	src/mesa/swrast/s_masking.h
	src/mesa/swrast/s_points.c
	src/mesa/swrast/s_points.h
	src/mesa/swrast/s_readpix.c
	src/mesa/swrast/s_span.c
	src/mesa/swrast/s_span.h
	src/mesa/swrast/s_stencil.h
	src/mesa/swrast/s_texcombine.c
	src/mesa/swrast/s_texcombine.h
	src/mesa/swrast/s_texfilter.c
	src/mesa/swrast/s_texfilter.h
	src/mesa/swrast/s_texstore.c
	src/mesa/swrast/s_triangle.c
	src/mesa/swrast/s_triangle.h
	src/mesa/swrast/s_zoom.h
	src/mesa/swrast_setup/ss_context.c
	src/mesa/swrast_setup/ss_triangle.h
	src/mesa/tnl/t_draw.c
	src/mesa/tnl/t_vb_light.c
	src/mesa/tnl/t_vertex_generic.c
	src/mesa/tnl/t_vertex_sse.c
	src/mesa/tnl/t_vp_build.h
	src/mesa/tnl/tnl.h
	src/mesa/x86/common_x86.c

Also unify caching of fragment and vertex programs in shader/prog_cache.c`

Brought across from gallium-0.2

(cherry picked from commit c366fd83b6)

matypes.h doesn't really depend on assyntax.h; assyntax.h is only present
on x86; and this way we remove the need of grep being available (which is
relevant for scons and non-unix platforms).
(cherry picked from commit fc286ff3ba)

Brought over from gallium-0.2 branch.

To make sure even/odd instructions hit the right pipes.

Under the terms of version 1.1, "once Covered Code has been published
under a particular version of the License, Recipient may, for the
duration of the License, continue to use it under the terms of that
version, or choose to use such Covered Code under the terms of any
subsequent version published by SGI."

FreeB 2.0 license refers to "dates of first publication".  They are here
taken to be 1991-2000, as noted in the original license text:

 ** Original Code. The Original Code is: OpenGL Sample Implementation,
 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
 ** Copyright in any portions created by third parties is as indicated
 ** elsewhere herein. All Rights Reserved.

Official FreeB 2.0 text:

http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf

As always, this code has not been tested for conformance with the OpenGL
specification.  OpenGL conformance testing is available from
http://khronos.org/ and is required for use of the OpenGL logo in
product advertising and promotion.

Also: improve float/int Z conversion.
Use clgt instead of cgt in depth test since we're comparing unsigned values.

Multiple displays of same surface data causes pixels to get scrambled.