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first step on our way to batching

Fixes bug 24946.
This regression came from 8df699b3.

It is a valid and tested combination on D3D9.

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>

Suggested by Joakim Sindholt.

Also, put flushing of colorbuffers _before_ the framebuffer state setup,
suggested by docs.
Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>

Conflicts:

	src/mesa/drivers/windows/gdi/mesa.def

The exec->vtx.inputs[] array was being written past its end.  This was
clobbering the following vbo_exec_context::eval state.  Probably not noticed
since evaluators and immediate mode rendering don't happen at the same time.

Fixed the loop in vbo_exec_vtx_init().
Changed the size of the vbo_exec_context::vtx.arrays[] array.
Added a bunch of debug-build assertions.

Issue found by Vinson Lee.

performance optimization

Signed-off-by: Brian Paul <brianp@vmware.com>

Seems INDX_OFFSET doesn't work properly on some cards,
so change back to immediate mode indices.  Seems to only
affect DRI1.  Needs more investigation.

Rework and clean up the draw functions.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>

Signed-off-by: Brian Paul <brianp@vmware.com>

It's not sampling based so its results are biased towards functions called
many times.

For example, we would like to have a predicate and texture token
in one instruction to do predicated texture sampling.

Mip-mapped 3D textures are not arrays of 2D layers
with a mip-map layout like 2D textures, therefore we
cannot use image_nr == depth for them.

Making use of "volume tiling" modes now, the allowed
modes are 0xZY where Z <= 5 and y <= 5.

Revised version of a patch from Karl Schultz.

Signed-off-by: Brian Paul <brianp@vmware.com>

Signed-off-by: Brian Paul <brianp@vmware.com>

Signed-off-by: Brian Paul <brianp@vmware.com>

Signed-off-by: Brian Paul <brianp@vmware.com>

Handle the remaining semantic names and indices.
Respect color interpolator when not flatshading.

Based on Michal's softpipe commit
eb699d64.

Everything now goes through the draw_vbuf handler, the same as
regular drivers.

Based on Keith's commit 4fe0fc3e.

Based on Michal's identical commit for softpipe
(ca9c4136).