i965: Use has_surface_tile_offset in depth/stencil alignment workaround.

Currently, has_surface_tile_offset is equivalent to gen == 4 && !is_g4x.

We already use it for related checks in brw_wm_surface_state.c, so it
makes sense to use it here too.  It's simpler and more future-proof.

Broadwell also lacks surface tile offsets.  With this patch, I won't
need to update any generation checking; I can simply not set the flag.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
mesa: Restore gl_array_object::NewArray

This will be used by the ARB_vertex_attrib_binding implementation.
This reverts commit db38e9a0e179441f59274f6f2a751912c29872e2.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Split out the format code from update_array()

Split out the code for updating the array format into a new function
called update_array_format(). This function will be called by both
update_array() and the new glVertexAttrib*Format() entry points in
ARB_vertex_attrib_binding.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Rename gl_array_object::VertexAttrib to _VertexAttrib

This will become derived state as part of the ARB_vertex_attrib_binding
support.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Make handle_bind_buffer_gen() non-static

...and rename it to _mesa_bind_buffer_gen().

This is so the function can be called from _mesa_BindVertexBuffer().

This patch also adds a caller parameter so we can report the right
entry point in error messages.

Based on a patch by Eric Anholt.

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
glapi: Add infrastructure for ARB_vertex_attrib_binding

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Add ARB_vertex_attrib_binding

update_array() and update_array_format() are changed to update the new
attrib and binding states, and the client arrays become derived state.

Reviewed-by: Eric Anholt <eric@anholt.net>
mesa: Add Get* support for ARB_vertex_attrib_binding

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Handle zero-stride arrays in _mesa_update_array_max_element()

Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: Optimize rebinding the same VBO

Check if the new buffer object has the same name as the current
buffer object before looking it up.

Reviewed-by: Eric Anholt <eric@anholt.net>
mesa: Enable ARB_vertex_attrib_binding

Reviewed-by: Eric Anholt <eric@anholt.net>
docs: Mark ARB_vertex_attrib_binding as done, update relnotes

Reviewed-by: Eric Anholt <eric@anholt.net>
configure.ac: Test $asm_arch directly.

Reviewed-by: Eric Anholt <eric@anholt.net>
build: Change HAVE_X86_ASM to mean x86 or x86-64 asm.

I want a conditional that says generally "we have x86 assembly" in the
next patch.

Reviewed-by: Eric Anholt <eric@anholt.net>
build: Build gen_matypes and matypes.h from src/mesa.

Reviewed-by: Eric Anholt <eric@anholt.net>
i965: Avoid flushing the batch for every blorp op.

This brings over the batch-wrap-prevention and aperture space checking
code from the normal brw_draw.c path, so that we don't need to flush the
batch every time.

There's a risk here if the intel_emit_post_sync_nonzero_flush() call isn't
high enough up in the state emit sequences -- before, we implicitly had
one at the batch flush before any state was emitted, so Mesa's workaround
emits didn't really matter.  Since the SNB fixes by Ken, I didn't see any
regressions after 3 piglit runs.

Improves cairo-gl performance by 13.7733% +/- 1.74876% (n=30/32)
Improves minecraft apitrace performance by 1.03183% +/- 0.482297% (n=90).
Reduces low-resolution GLB 2.7 performance by 1.17553% +/- 0.432263% (n=88)
Reduces Lightsmark performance by 3.70246% +/- 0.322432% (n=126)
No statistically significant performance difference on unigine tropics
(n=10)
No statistically significant performance difference on openarena (n=755)

The two apps that are hurt happen to include stalls on busy buffer
objects, so I think this is an effect of missing out on an opportune
flush.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
draw,llvmpipe,util: add depth bias calculation for arb_depth_buffer_float

With this patch, the llvmpipe and draw modules will calculate the depth bias
according to floating point depth buffer semantics described in the
arb_depth_buffer_float specification, when the driver has a z buffer bound
with a format type of UTIL_FORMAT_TYPE_FLOAT.

By default, the driver will use the existing UNORM calculation for depth bias.

A new function, draw_set_zs_format, was added to calculate the Minimum
Resolvable Depth value and floating point depth sense for the draw module.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
mesa: Add extension scaffolding for ARB_vertex_type_10f_11f_11f_rev

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
mesa: add varray support for UNSIGNED_INT_10F_11F_11F_REV type

V2: fix interaction with VertexAttribFormat, since that landed after
this was originally written

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
mesa: Add support to _mesa_bytes_per_vertex_attrib for 10_11_11 format.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>