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This removes 8 bytes from pipe_draw_info (think u_threaded_context)
and a lot of info->indirect pointer indirections.
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <!7441>

Acked-by: Eric Anholt <eric@anholt.net>
Part-of: <!5749>

This adds a config-option to u_primconvert that translates primitive
restart values to the max-values for the index size. This allows us to
support arbitrary primitive-restart indices on hardware that only
supports fixed restart-indices.
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <!5976>

This struct allows us to pass the configuration as a struct, which can
more easily be extended to take more arguemnts as long as we're careful
about zero-initialization.

We keep the old create-function, but implement it as a wrapper on top so
we don't have to update all existing call-sites right now.
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <!5976>

pipe_draw_info::indexed is replaced with index_size. index_size == 0 means
non-indexed.

Instead of pipe_index_buffer::offset, pipe_draw_info::start is used.
For indexed indirect draws, pipe_draw_info::start is added to the indirect
start. This is the only case when "start" affects indirect draws.

pipe_draw_info::index is a union. Use either index::resource or
index::user depending on the value of pipe_draw_info::has_user_indices.

v2: fixes for nine, svga

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Tested-by: Charmaine Lee <charmainel@vmware.com>

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

The fixed alignment of u_upload_mgr will go away.
This is the first step.

The motivation is that one u_upload_mgr can have multiple users,
each allocating from the same buffer, but requiring a different alignment.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

This should match to how drivers program hardware. flatshade relates to
whether color inputs are interpolated, not the provoking vertex
convention.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Rob Clark <robclark@freedesktop.org>

This add primitive restart support to the prim conversion.

This involves changing the API for the translate functions
as we need to pass the prim restart index and the original
number of indices into the translate functions.

primitive restart is support for quads, quad strips
and polygons.

This deal with the case where the actual number of output
primitives is less than the initially calculated number,
by filling the rest of the output primitives with the restart
index, the other option is to reduce the output prim number,
but that will make the generator code a bit messier.
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

v2: Conditionalize it on having done any uploads (Turns out
    u_upload_destroy() isn't safe with a NULL arg).

Reviewed-by: Dave Airlie <airlied@redhat.com> (v1)

Matches what u_vbuf_get_minmax_index() does.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.4 10.3" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Rob Clark <robclark@freedesktop.org>

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.3 10.4" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Rob Clark <robclark@freedesktop.org>

The index_bias (aka base_vertex) applies to the downstream draw just as
much, since the actual index values are never modified.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.3 10.4" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Rob Clark <robclark@freedesktop.org>

tex-miplevel-selection was hammering my memory manager with primconverts
on individual quads.  This gets all those converted IBs packed into larger
IBs.
Reviewed-by: Rob Clark <robclark@freedesktop.org>

gcc isn't detecting that src is set before used, since both are under if
(info->indexed).
Reviewed-by: Rob Clark <robclark@freedesktop.org>

These values are supposed to be the minimum/maximum index values used to
read from the vertex buffers.  This code either copies index values out of
the old IB (so, same min/max as the original draw call), or generates a
new IB (using index values between the start and the start + count of the
old array draw info, which just happens to be what min/max_index are set
to by st_draw.c).

We were incorrectly setting the max_index in the
converting-from-glDrawArrays case to the start vertex plus the number of
vertices generated in the new IB, which broke QUADS primitive conversion
on VC4 (where max_index really has to be correct, or the kernel might
reject your draw call due to buffer overflow).

Reviewed-by: Rob Clark <robclark@freedesktop.org> (from verbal description
             of the patch)

To match the CALLOC_STRUCT() call.

Cc: "10.0, 10.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

A convenient front end to indices generate/translate code, for emulating
primitives which are not supported natively by the driver.

This handles saving/restoring index buffer state, etc.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>