glx/tests: Add unit tests for the DRI2 part of GLX_MESA_query_renderer

After adding $(DEFINES) to AM_CPPFLAGS, the __glXGetCurrentContext
wrapper function is no longer needed and causes compile errors.  Using
the correct defines causes it to be a macro!

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

glx/tests: Add unit tests for the GLX part of GLX_MESA_query_renderer

These tests primarilly ensure that the functions added by this extension
don't abuse other interfaces (e.g., glx_screen::query_renderer_integer)
when provided bad data.

These tests helped me find a couple small bugs in the initial
implementation.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

glx/tests: Add GetGLXScreenConfigs_called flag

Tests for the GLX_MESA_query_context extension will use this flag.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

docs: Import extension spec for GLX_MESA_query_renderer

The enumerated values are currently allocated from Intel's range.

v2: Fix a typo.  Update the list of functions to which the new enums can
be passed.  The "Current" versions were previously missing.  Both things
noticed by Marek.

v3: Fix typo in return type of glXQueryRendererIntegerMESA in the spec
body (noticed by Ken).  Fix typo in issue #14 referencing itself instead
of issue #13 (noticed by Dave).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Dave Airlie <airlied@redhat.com>

glx/dri2: Add DRI2 support for GLX_MESA_query_renderer

The new functions for this extension were added to a separate file
(dri2_query_renderer.c) to facilitate unit testing.  I tried putting
them in dri2_glx.c, and it resulting in an unending chain of
dependencies.  It was the proverbial threading hanging from a sweater.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glx/dri2: Pull some internal structures out to a separate header file

This structures will be accessed by internal functions that will be
added in a file separate from dri2_glx.c.  The new code will be added to
a new file to facilitate unit testing.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glx/tests: Silence warnings after adding fields to glx_screen_vtable

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

glx: Add functions and GLX plumbing for GLX_MESA_query_renderer

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glx: Add GLX_MESA_query_renderer

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glx: Add extension tracking GLX_MESA_query_renderer

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Wire up initial support for DRI_RENDERER_QUERY extension

v2: Use sysconf instead of sysinfo for improved portability.  Suggested
by Ken.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i915: Wire up initial support for DRI_RENDERER_QUERY extension

v2: Use sysconf instead of sysinfo for improved portability.  Suggested
by Ken.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

dri: Add function to implement queries common to all Mesa drivers

v2: Add assertions that the version string has the expected format.
This will catch build errors (or changes to the version string format)
in debug build without exposing release builds to buffer over-runs.
Suggested by Ken.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Refactor the renderer string creation out of intelGetString

This will soon be used in intel_screen.c from a function that doesn't
have a gl_context.

v2: Delete local variables that are now unused.  This matches v1 of the
changes to the i915 driver.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i915: Refactor the renderer string creation out of intelGetString

This will soon be used in intel_screen.c from a function that doesn't
have a gl_context.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Refactor the vendor string out of intelGetString

This will soon be used in intel_screen.c from a function that doesn't
have a gl_context.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i915: Refactor the vendor string out of intelGetString

This will soon be used in intel_screen.c from a function that doesn't
have a gl_context.

v2: Remove spurious break after return.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

dri: Add interface definition for DRI_RENDERER_QUERY extension

This will be used to let apps query hardware and driver limits before
creating a GL context.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Enable DRI_Robustness extension

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Propagate the GPU reset notifiction strategy down into the driver

If the application requests reset notifiction, connect up the reset
status query method and set gl_context::ResetStrategy.

v2: Update based on kernel interface / libdrm changes.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Add function to query the GPU reset status for a context

v2: Update based on kernel interface / libdrm changes.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Handle __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS flag

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa/dri: Move context flag validation down into the drivers

Soon some drivers will support a different set of flags than other
drivers.  If some flags have to be filtered in the driver, we might as
well filter all of them in the driver.

The changes in nouveau use tabs because nouveau seems to have it's own
indentation rules.

v2: Fix some rebase failures noticed by Ken (returning the wrong types,
etc.).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa/dri: Add basic plumbing for GLX_ARB_robustness reset notification strategy

No drivers advertise the DRI2 extension yet, so no driver should ever
see a value other than false for notify_reset.

The changes in nouveau use tabs because nouveau seems to have it's own
indentation rules.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Implement proper tracking logic for glGetGraphicsResetStatusARB

Drivers still have to implement dd_function_table::GetGraphicsResetStatus.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: Add gl_shared_state::ShareGroupReset and gl_context::ShareGroupReset

These will be used to determine whether to signal a GPU reset after
another context in the share group has observed a reset.

v2: Change ShareGroupReset from GLboolean to bool.  Suggested by Brian.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: Add dd_function_table::GetGraphicsResetStatus

This allows drivers to determine whether a GPU reset has occured.  It
should return non-zero status if a reset was observed by the specified
context.  Another mechanism will be used to observe resets occuring in
other contexts in the share group.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: Remove gl_context::ResetStatus

This isn't going to be used in the actual implemenation of
glGetGraphicsResetStatus.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

st/xorg: Delete.

Acked-by: Lucas Stach <l.stach@pengutronix.de>

xorg-nouveau: Delete.

xorg-i915: Delete.

Acked-by: Jakob Bornecrantz <wallbraker@gmail.com>
Acked-by: Stéphane Marchesin <stephane.marchesin@gmail.com>

docs: Mark off ARB_shader_atomic_counters for i965

...and update relnotes.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>

i965/gen7: Expose ARB_shader_atomic_counters.

Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: Linker support for ARB_shader_atomic_counters.

v2: Add comments on the purpose of the auxiliary data structures.
    Check for atomic counter overlaps.  Use the contains_atomic()
    convenience method.  Add static assert with the number of expected
    shader stages.
v3: Don't resize atomic arrays.
v4: Add comment on the reason why we don't resize atomic counter
    arrays.  Use 'strcmp(...) == 0' instead of '!strcmp(...)'.
v5 (idr):  Don't use STL in the linker.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

glsl: Implement parser support for atomic counters.

v2: Mark atomic counters as read-only variables.  Move offset overlap
    code to the linker.  Use the contains_atomic() convenience method.
v3: Use pointer to integer instead of non-const reference.  Add
    comment so we remember to add a spec quotation from the next GLSL
    release once the issue of atomic counter aggregation within
    structures is clarified.
v4 (idr): Don't use std::map because it's overkill.  Add an assertion
    that ctx->Const.MaxAtomicBufferBindings <= MAX_COMBINED_ATOMIC_BUFFERS.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

Revert "i965: Add support for GL_AMD_performance_monitor on Ironlake."

This reverts most of commit 0f2da773070c06b6d20ad264d3abb19c4dfd9761.
(I chose to leave the additions to brw_defines.h.)

My previous Ironlake implementation was somewhat broken: counter data
was global, rather than per-context.  This meant that performance
monitors captured data from your compositor, 2D driver, and other 3D
programs.

Originally, I believed that Sandybridge and later had an easy way to
avoid this problem (setting per-context flags in OACONTROL), while
Ironlake did not.  So I'd intended to leave it as a known limitation of
performance monitoring support on Ironlake.  However, this turned out
not to be true.

Unfortunately, our hardware only has one set of aggregating performance
counters shared between all 3D programs, and their values are not saved
or restored by hardware contexts.  Also, at least on Sandybridge and
Ivybridge, the counters lose their values if the GPU goes to sleep.

To work around both of these problems, we have to snapshot the
performance counters at the beginning and end of each batch, similar to
how we handle query objects on platforms that don't support hardware
contexts.

For occlusion queries, this batch bookending approach is fairly simple:
only one occlusion query can be active at a time, and the result is a
single integer.  Performance monitors are more complex: an arbitrary
number of monitors can be active at a time, each monitoring some subset
of our ~30 observability counters.  Individual monitors can be started
and stopped at any point during the batch.  Tracking where each monitor
started/ended relative to batch flushes ends up being a pain.  And you
can run out of space in the buffer.

Properly supporting this required some serious rearchitecting of the
code.  Rather than writing patches to try and morph a broken system into
a working one (which operates quite differently), I decided it would be
simplest to revert the old code and start fresh.  Parts will look
familiar, but other parts are new.

I also decided it would be best to include Sandybridge and Ivybridge
support from the start, since the newer platforms have added complexity
that I wanted to make sure worked.  They're also what most people care
about these days.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Enable dFdx, dFdy, and fwidth by default in GLSL ES 3.00.

Previously, we only exposed them in desktop GL or with:

   #extension GL_OES_standard_derivatives : enable

GLSL ES 3.00 includes these without an extension, so we need to expose
them by default.

Note that the above #extension line results in an error or desktop GL,
so we don't need to worry about this.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>

docs: Mark off ARB_vertex_type_10f_11f_11f_rev for r600g

...and update relnotes.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

r600g: Add support for PIPE_FORMAT_R11G11B10_FLOAT vertex elements

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

st/mesa: Add support for ARB_vertex_type_10f_11f_11f_rev

Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

mesa: fix return statements in varray.c

Return false, not GL_FALSE.  Add missing return value.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71359

svga: always return 4 for PIPE_MAX_COLOR_BUFS

Even if the query returns 8, only 4 really work.

Reviewed-by: José Fonseca <jfonseca@vmware.com>

svga: return true for the PIPE_CAP_SM3 query

This just tells the state tracker to turn on the GL_ARB_shader_texture_lod
extension.  This simply allows the GLSL compiler to emit TXL and TXD
instructions for both vertex and fragment shaders.  We already support
these opcodes in the svga driver.  Though, the shadow2DGrad() Piglit
tests are failing.

Reviewed-by: José Fonseca <jfonseca@vmware.com>

i965: Add an implementation of intel_miptree_map using streaming loads.

Improves performance of RoboHornet's 2D Canvas toDataURL benchmark
[http://www.robohornet.org/#e=canvastodataurl] by approximately 5x
on Baytrail on ChromiumOS.

Elapsed time drops by -81.4861% +/- 1.22619% (n=3 s=14.9105, confidence=95%).

Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

mesa: Add a streaming load memcpy implementation.

Uses SSE 4.1's MOVNTDQA instruction (streaming load) to read from
uncached memory without polluting the cache.

Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

docs: Mark off some more things.

These have been supported on i965/Gen7+ for a while, and are listed
in the 10.0 release notes.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>

i965: Fix 'SIMD16 only' dispatch of fragment shader in case of sample shading

This patch make changes to correctly set up the Dispatch GRF Start
Register in case of 'SIMD16 only' FS dispatch.

This fixes an issue of incorrect rendering on dolphin emulator with
GL_SAMPLE_SHADING enabled.

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

docs: update relnotes

docs: Mark off ARB_vertex_type_10f_11f_11f_rev.

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

i965: Enable ARB_vertex_type_10f_11f_11f_rev on Gen6+.

This theoretically works on earlier hardware as well, but the extension
requires at least GL3.0.

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

i965: add support for UNSIGNED_INT_10F_11F_11F_REV vertex attribs

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

vbo: add 10_11_11 support to vbo_attrib_tmp

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>

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 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>

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>

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>

build: Build gen_matypes and matypes.h from src/mesa.

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>

configure.ac: Test $asm_arch directly.

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

docs: Mark ARB_vertex_attrib_binding as done, update relnotes

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

mesa: Enable ARB_vertex_attrib_binding

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

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: 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: 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: 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>

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: 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>

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: 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: 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>

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>

gallium: fix build on GNU/kFreeBSD

Patch from Debian package

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Andreas Boll <andreas.boll.dev@gmail.com>

configure.ac: fix build on GNU/kFreeBSD

Based on existing patch from Debian package.

Debian bug: http://bugs.debian.org/524690

Reviewed-by: Andreas Boll <andreas.boll.dev@gmail.com>

mesa: add arm64 support

Patch from Ubuntu package

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Andreas Boll <andreas.boll.dev@gmail.com>

r600/compute: silence unused var warning

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

i965/gen6: Don't allow SIMD16 dispatch in 4x PERPIXEL mode with computed depth.

Hardware docs say we can only use SIMD8 dispatch in this condition.

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

configure.ac: Drop no-out-of-tree notice.

We do support out of tree builds now.

Tested-by: Colin Walters <walters@verbum.org>

mesa: Build program as part of libmesa.

mesa: Clean up use of top_srcdir/top_builddir.

i965: Use unreachable() to silence a compiler warning.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

mesa: Add unreachable() macro.

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

gallivm: fix indirect addressing of inputs

We weren't adding the soa offsets when constructing the indices
for the gather functions. That meant that we were always returning
the data in the first element.
(Copied straight from the same fix for temps.)
While here fix up a couple of broken comments in the fetch functions,
plus don't name a straight float type float4 which is just confusing.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Zack Rusin <zackr@vmware.com>

r600/llvm: Fix isampleBuffer on preEG

r600/llvm: Fix texbuf for pre EG gen

mesa: for GLSL_DUMP_ON_ERROR, also dump the info log

Since it's helpful to know why the shader did not compile.
Also, call fflush() for Windows.

Reviewed-by: José Fonseca <jfonseca@vmware.com>

st/vdpau: resolve delayed rendering for GL interop v2

Otherwise OutputSurface interop has funny results sometimes.
This fixes interop with the mpv media player.

v2 (chk): add proper locking

Signed-off-by: Christian König <christian.koenig@amd.com>

docs: Mark off ARB_sample_shading; minor tidyup.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>

i965/fs: Gen4-5: Implement alpha test in shader for MRT

V2: Add comment explaining what emit_alpha_test() is for;
    fix spurious temp and bogus whitespace.

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

i965/fs: Gen4-5: Setup discard masks for MRT alpha test

The same setup is required here as when the user-provided shader
explicitly uses KIL or discard.

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

i965: Gen4-5: Include alpha func/ref in program key

V2: Better explanation of the rationale for doing this.

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

i965: Gen4-5: Don't enable hardware alpha test with MRT

We have to do this in the shader instead, since these gens lack an
independent RT0 alpha value in their render target write messages.

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

i965: Combine {brw,gen7}_update_texture_buffer_surface() functions.

Now that brw_update_texture_buffer_surface() uses the virtual
emit_buffer_surface_state() function, it works for Gen7+ too.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>

i965: Unvirtualize brw_create_constant_surface; delete Gen7+ variant.

Now that brw_create_constant_surface uses a virtual function internally,
it doesn't need to be virtual itself.  We can delete the Gen7+ variant
and simplify things.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>

i965: Use the new emit_buffer_surface_state() vtable entry.

This will allow us to combine the Gen4-6 and Gen7 variants of these
functions.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>

i965: Virtualize emit_buffer_surface_state().

This entails adding "mocs" and "rw" parameters to the Gen4-5 version.
I made it actually pay attention to the rw flag (even though it is
always false), but mocs is always ignored.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>

i965: Fix compiler warning.

fix: intel_screen.c:1320:4: warning: initialization from
incompatible pointer type [enabled by default]

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Tell the unit states how many binding table entries we have.

Before the series with 3c9dc2d31b80fc73bffa1f40a91443a53229c8e2 to
dynamically assign our binding table indices, we didn't really track our
binding table count per shader, so we never filled in these fields.

Affects cairo-gl trace runtime by -2.47953% +/- 1.07281% (n=20)

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Fix context initialization after 2f896627175384fd5

You can't return stack-initialized values and expect anything good to
happen.

Reviewed-by: Chad Versace <chad.versace@linux.intel.com
Reviewed-by: Matt Turner <mattst88@gmail.com>

gallivm: optimize lp_build_minify for sse

SSE can't handle true vector shifts (with variable shift count),
so llvm is turning them into a mess of extracts, scalar shifts and inserts.
It is however possible to emulate them in lp_build_minify with float muls,
which should be way faster (saves over 20 instructions per 8-wide
lp_build_minify). This wouldn't work for "generic" 32bit shifts though
since we've got only 24bits of mantissa (actually for left shifts it would
work by using sse41 int mul instead of float mul but not for right shifts).
Note that this has very limited scope for now, since this is only used with
per-pixel lod (otherwise we're avoiding the non-constant shift count by doing
per-quad shifts manually), and only 1d textures even then (though the latter
should change).

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>