dri3: Check for dummyContext to see if the glx_context is valid

According to the comments in src/glx/glxcurrent.c __glXGetCurrentContext()
always returns a valid pointer. If no context is made current, it will
contain dummyContext. Thus a test for NULL will always fail.

https://lists.freedesktop.org/archives/mesa-dev/2016-April/113962.html

Signed-off-by: Stefan Dirsch <sndirsch@suse.de>
Reviewed-by: Egbert Eich <eich@freedesktop.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

dri2: Check for dummyContext to see if the glx_context is valid

According to the comments in src/glx/glxcurrent.c __glXGetCurrentContext()
always returns a valid pointer. If no context is made current, it will
contain dummyContext. Thus a test for NULL will always fail.

https://bugzilla.opensuse.org/show_bug.cgi?id=962609

Tested-by: Olaf Hering <ohering@suse.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

glsl: move uniform block validation to link_uniform_blocks.cpp

Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>

docs: Mention that {ARB,OES}_texture_stencil8 is supported on i965/gen8+

Thanks to Thomas Helland for reminding me to do this.

i965: Enable ARB_texture_stencil8 and OES_texture_stencil8 on Gen8+.

Stencil texturing is required by ES 3.1.  Apparently we never actually
turned it on.  Do that now.  Also turn on the desktop extension.

Fixes nine dEQP-GLES31.functional tests:

stencil_texturing.format.stencil_index8_2d
texture.border_clamp.formats.stencil_index8.nearest_size_pot
texture.border_clamp.formats.stencil_index8.nearest_size_npot
texture.border_clamp.formats.stencil_index8.gather_size_pot
texture.border_clamp.formats.stencil_index8.gather_size_npot
texture.border_clamp.unused_channels.stencil_index8
state_query.internal_format.renderbuffer.stencil_index8_samples
state_query.internal_format.texture_2d_multisample.stencil_index8_samples
state_query.internal_format.texture_2d_multisample_array.stencil_index8_samples

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

mesa: Try to fix CopyTex[Sub]Image of stencil textures.

ES prohibits this, but GL appears to allow it.  We at least need this
much, or else we'll crash as there's no source to read from.

This fixed crashes in the ES tests before I realized I needed to
prohibit stencil instead.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

mesa: Disallow CopyTexSubImage on stencil formats in ES.

Fixes
- ES31-CTS.gtf.GL31Tests.texture_stencil8.texture_stencil8
- ES31-CTS.gtf.GL31Tests.texture_stencil8.texture_stencil8_multisample

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

i965: Fix MapTextureImage for multi-slice/level stencil buffers.

We called intel_miptree_get_image_offset() to get the image offsets
for the current level/slice, but then proceeded to ignore the results
and clobber level/slice 0 every time.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94713
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>

i965: Move TCS output indirect_offset.file check out a level.

I want to add another condition.  Moving the indirect_offset.file
check out a level should make this a little easier.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/fs: Reduce the response length of sampler messages on Skylake.

Often, we don't need a full 4 channels worth of data from the sampler.
For example, depth comparisons and red textures only return one value.
To handle this, the sampler message header contains a mask which can
be used to disable channels, and reduce the message length (in SIMD16
mode on all hardware, and SIMD8 mode on Broadwell and later).

We've never used it before, since it required setting up a message
header.  This meant trading a smaller response length for a larger
message length and additional MOVs to set it up.

However, Skylake introduces a terrific new feature: for headerless
messages, you can simply reduce the response length, and it makes
the implicit header contain an appropriate mask.  So to read only
RG, you would simply set the message length to 2 or 4 (SIMD8/16).

This means we can finally take advantage of this at no cost.

total instructions in shared programs: 9091831 -> 9073067 (-0.21%)
instructions in affected programs: 191370 -> 172606 (-9.81%)
helped: 2609
HURT: 0

total cycles in shared programs: 70868114 -> 68454752 (-3.41%)
cycles in affected programs: 35841154 -> 33427792 (-6.73%)
helped: 16357
HURT: 8188

total spills in shared programs: 3492 -> 1707 (-51.12%)
spills in affected programs: 2749 -> 964 (-64.93%)
helped: 74
HURT: 0

total fills in shared programs: 4266 -> 2647 (-37.95%)
fills in affected programs: 3029 -> 1410 (-53.45%)
helped: 74
HURT: 0

LOST:   1
GAINED: 143

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

nir: Add a helper for figuring out what channels of an SSA def are read

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/fs: Use inst->regs_written for rlen for texture instructions

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/fs: Properly report regs_written from SAMPLEINFO

The previous behavior would only allocate one register and then write
four thus potentially stomping three innocent bystanders.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Set regs_written on texturing instructions

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Don't force a header for texture offsets of 0.

Calling textureOffset() with an offset of <0, 0, 0> is equivalent to
calliing texture().  We don't actually need to set up an offset,
which causes a message header to be created.

A fairly common pattern is to sample at a point with a bunch of
offsets, and average them.  It's natural to write all the lookups
as textureOffset, but use <0, 0> for the center sample.

shader-db results on Skylake:

total instructions in shared programs: 9092095 -> 9092087 (-0.00%)
instructions in affected programs: 2826 -> 2818 (-0.28%)
helped: 12
HURT: 2

total cycles in shared programs: 70870166 -> 70870144 (-0.00%)
cycles in affected programs: 15924 -> 15902 (-0.14%)
helped: 2
HURT: 0

This also helps prevent code quality regressions in a future patch.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by Jason Ekstrand <jason@jlekstrand.net>

r600g: fix and optimize tgsi_cmp when using ABS and NEG modifier

Some apps set NEG and ABS on the source param to test for zero.
Use ALU_OP3_CNDE insted of ALU_OP3_CNDGE and unset both modifiers.

It also removes the need for a MOV instruction, as ABS isn't
supported on op3.

Tested on AMD CAYMAN and AMD RV770.

Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

docs: update softpipe for ARB_compute_shader

Signed-off-by: Dave Airlie <airlied@redhat.com>

softpipe: add support for compute shaders. (v2)

This enables ARB_compute_shader on softpipe. I've only
tested this with piglit so far, and I hopefully plan
on integrating it with my vulkan work. I'll get to
testing it with deqp more later.

The basic premise is to create up to 1024 restartable
TGSI machines, and execute workgroups of those machines.

v1.1: free machines.
v2: deqp fixes - add samplers support, finish
atomic operations, fix load/store writemasks.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/exec: initialise SysSemanticToIndex array to -1

We want to use the SysSemanticToIndex to tell if we've seen
the semantics at all.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/exec: implement restartable machine.

This lets us restart the machine at a PC value, and exits
the machine when we hit a barrier.

Compute shaders will then execute all the threads up to the
barrier, then restart the machines after the barrier once
all are done.

v2: comment the code a bit, change return types.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/exec: make inputs/outputs optional for compute shaders.

compute shaders don't need input/outputs so don't bother
allocating memory for these.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/exec: implement load/store/atomic on MEMORY.

This implements basic load/store/atomic ops on MEMORY types
for compute shaders.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/exec: split out setting up masks to separate function

This is just a cleanup that will make later changes easier
to make.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi: accept a starting PC value for exec machine.

This will be used later to restart barriered execution
threads in compute, for now we just want to change the API.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi: move to using vector for system values.

For compute support some of the system values are .xyz types,
so move to using a vector instead of a single channel.

[airlied: squash swizzle fix from compute series].

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tgsi/exec: fix system value handling.

a) SysSemanticToIndex needs to be indexed with the semantic name
not the decl->Declaration.Semantic.

b) doing this in run is too late, as the mappings are all setup
prior to run in the execs.

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

i965/blorp: Convert state setup to C

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Make state setup C-safe

Previously they (very rarely) used C++isms that prevented them from being
compiled as C.  As of this commit, they can be compiled as either C or C++.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Convert brw_blorp.cpp to a C file

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Make all of brw_blorp.h accessible to C

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Turn brw_blorp_params into a C-style struct

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Turn coord_transform into a C-style struct

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Turn blorp_surface_info into a C-style struct

This commit is mostly mechanical except that it changes where we set the
swizzle.  Previously, the blorp_surface_info constructor defaulted the
swizzle to SWIZZLE_XYZW.  Now, we memset to zero and fill out the swizzle
when we setup the rest of the struct.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Roll mip_info into surface_info

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Get rid of the blorp_blit_params class

It was really just a wrapper around the function that constructed it.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Remove the hiz params class

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Remove the clear params classes

They didn't really add anything other than a key and extra layers of
function calls.  This commit just inlines the extra functions and gets rid
of the extra classes.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Remove the arguments to brw_blorp_params()

No one was using anything other than the defaults.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

i965/blorp: Refactor to get rid of the get_wm_prog virtual function

Instead of having a virtual member function for getting the WM/PS kernel,
we simply add fields for prog_data and the kernel to brw_blorp_parms and
always make sure those get set as part of the different constructors.

v2: Use use prog_data != NULL to check for a valid program instead of a
    magic kernel offset value

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

swr: autogenerate swr_context_llvm.h

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>

anv: honor DESTDIR when installing icd file

https://bugs.freedesktop.org/show_bug.cgi?id=94969

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

i965/meta: initialize values to avoid random behaviour on error path

if brw_meta_stencil_blit() errored at wrong place 'target' would
be uninitialized and cause random behaviour on leaving the funtion.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

meta: Avoid random memory access on error

Initialize drawFb to NULL in _mesa_meta_CopyImageSubData_uncompressed()
if getting readFb fails uninitialized drawFb will cause randomness
on cleanup.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

mesa: add tags file to gitignore

For ctags users like me.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

mesa: Remove every double semi-colon

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

glx: Remove every double semi-colon

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

gallium: Remove every double semi-colon

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

egl: Remove every double semi-colon

Removes all accidental semi-colons in egl.

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

gallium/r600: removing double semi-colons

Trivial change. Removing unnecessary semi-colons from the code.
I don't have push access so someone reviewing this can push it.

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

mesa/main: removing double semi-colons

Trivial change. Removing unnecessary semi-colons from the code.
I don't have push access so someone reviewing this can push it.

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

glsl: removing double semi-colons

Trivial change. Removing unnecessary semi-colons from the code.
I don't have push access so someone reviewing this can push it.

Signed-off-by: Jakob Sinclair <sinclair.jakob@openmailbox.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>

glx: Don't enclose includes inside `extern "C" { }`.

Ran `make check` inside src/glx to verify everything compiles and links
correctly.

https://bugs.freedesktop.org/show_bug.cgi?id=95158

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

radeonsi: add RW_BUFFERS only once in si_ce_needed_cs_space

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

egl: fix make check broken by interop support

docs: mark ARB_compute_shader as done for nvc0

This has been merged few months ago but this should help
https://mesamatrix.net/ to update its list of supported extensions.

Please note that compute shaders are not really useful without
ARB_image_load_store and only GK104 and GK110 support it for now.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

nvc0: expose GLSL version 420 on GK110

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: enable ARB_shader_image_load_store on GK110

This exposes 8 images for all shader types.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gk110/ir: add emission for VSHL

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gk110/ir: add emission for OP_SUEAU, OP_SUBFM and OP_SUCLAMP

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gk110/ir: add emission for OP_SULDB and OP_SUSTx

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gk110/ir: add emission for OP_MADSP

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gk110/ir: add emission for OP_PERMT

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: expose GLSL version 420 on GK104

Other chipsets will be added later.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: enable ARB_shader_image_load_store on GK104

This exposes 8 images for all shader types.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: inform users that 3D images are not fully supported

3D images are a bit more complicated to implement and will probably
requires a bunch of headaches and we don't care for now because they
do not seem to be really used by apps.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: reduce GL_MAX_3D_TEXTURE_SIZE to 2048 on Kepler+

The blob sets it to 2048 and using 4096 reports an INVALID_DATA error
with RT_ARRAY_MODE when z is 4096. Suggested by Ilia Mirkin.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>

nvc0/ir: check that the image format doesn't mismatch

This re-uses NVE4_SU_INFO_CALL which is not used anymore because we
don't use our lib for format conversions. While we are at it, add a
todo for image buffers because there are some robustness-related
issues to fix.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: prevent out of bounds when no images are bound

Checking if the image address is not 0 should be enough to prevent
read faults. To improve robustness, make sure that the destination
value of atomic operations is correctly initialized in case the
instruction is not performed.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: add indirect support for images on Kepler

This fixes arb_shader_image_load_store-indexing and
arb_shader_image_load_store-max-images.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: fix 1D arrays images for Kepler

For 1D arrays, the array index is stored in the Z component.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: fix cube images for Kepler

Like 2d array images, the z-dimension needs to be clamped.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: add support for SULDP -> SULDB conversion

This will allow to convert surface formats without adding an extra
call to our lib.

[hakzsam: make use of this for GK104]

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: make use of OP_SUQ for surfaces query

This implements RESQ for surfaces which comes from imageSize() GLSL
bultin. As the dimensions are sticked into the driver constant buffer,
this only has to be lowered with loads.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> (v2)

nv50/ir: add OP_BUFQ for buffers query

TGSI RESQ allows both images and buffers but we have to make a
distinction between these two type of resources in our lowering pass.
Introducing OP_BUFQ which is a fake operand will allow to implement
OP_SUQ for surfaces.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: enable early fragment test with explicit user control

This feature can be enabled in two ways: as an optimization and by
explicit user control (with OpenGL 4.2 or ARB_shader_image_load_store).

This makes use of the recent TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL to
force early fragment tests when needed.

This fixes a bunch of
dEQP-GLES31.functional.image_load_store.early_fragment_tests.* tests.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0/ir: fix constraints for OP_SUSTx on Kepler

Destination type is actually always 32-bits, so typeSizeof() returns 4
and no sources are condensed.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: re-introduce TGSI lowering pass for images

This is loosely based on the previous lowering pass wrote by calim
four years ago. I did clean the code and fixed some issues.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nv50/ir: add support for TGSI image declarations

Old and dead resource code will be removed once images are completely
done. Based on original patch by Ilia Mirkin.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: add missing glMemoryBarrier bits

This fixes a bunch of subtests of
arb_shader_image_load_store-host-mem-barrier.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu> (v1)

nvc0: enable RGB10_A2UI format on GK104

No clue why this was not enabled by default before, maybe because
the SULDP conversion was wrong. Anyway, this helps in fixing all
rgb10_a2ui piglit tests.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: shift address with blocksize for image buffers

This fixes a bunch of dEQP image buffers related tests.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: fix address offset when images have multiple levels

This fixes arb_shader_image_load_store-level.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: bind images on 3D shaders for Kepler

Similar to surfaces validation for compute shaders.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: bind images on compute shaders for Kepler

Old surfaces validation code will be removed once images are completely
done for Fermi/Kepler, that explains why I only disable it for now.

This also introduces nvc0_get_surface_dims() which computes correct
dimensions regarding the given target.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: reserve an area for surfaces info in the driver constbuf

To process surfaces coordinates from the codegen part, and because
some information like the format is not always available (eg. when
writeonly is used), we have to stick some surfaces data in the
driver constbuf. This is especially true for OpenCL because we don't
know the format at shader compile time.

This bumps the size of each shader area from 1K to 2K.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

nvc0: add preliminary support for images

This implements set_shader_images() and resource invalidation for
images. As OpenGL requires at least 8 images, we are going to expose
this minimum value even if this might be raised for Kepler, but this
limit is mainly for Fermi because the hardware only accepts 8 images.

Based on original patch by Ilia Mirkin.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>

gk110/ir: add emission for (a OP b) OP c

This is pretty similar to NVC0 except that offsets have changed.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>

nvc0/ir: fix wrong emission of (a OP b) OP c

The third source must be emitted at offset 49 instead of 17 and the
not modifier is at 52 instead of 20. If you look a bit above in
emitLogicOp() you will see that the dest is emitted at 17 which
confirms that src(2) is obviously wrong.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>

scons: Support Clang on Windows.

- Introduce 'gcc_compat' env flag, for all compilers that define __GNUC__,
  (which includes Clang when it's not emulating MSVC.)

- Clang doesn't support whole program optimization

- Disable enumerator value warnings (not sure why Clang warns about them,
  as my understanding is that MSVC promotes enums to unsigned ints
  automatically.)

This is not enough to build with Clang + AddressSanitizer though.  More
follow up changes will be required for that.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: Include intrin.h instead of defining ourselves.

More portable, particularly when building with Clang, which implements
all MSVC intrisincs in its own intrin.h, but doesn't actually support
`#pragma instrinsic`.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

scons: Whenever possible decide what to do based on platform and not compiler.

Because compilers like GCC and Clang are effectively available everywhere
so their presence/absence is seldom conclusive.

Furthermore, all compilers we use now have stdint.h.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

scons: Move fallback HAVE_* definitions to headers.

These were being defined in SCons, but it's not practical:

- we actually need to include Gallium headers from external source trees, with
completely disjoint build infrastructure, and it's unsustainable to
replicate the HAVE_xxx checks or even hard-coded defines across
everywhere.

- checking compiler version via command line doesn't really work due to
  Clang essentially being like a cameleon which can fake either GCC or
  MSVC

There's no change for autoconf.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

nir: Add missing break into switch in construct_value()

There seemed to be missing one break in nested switchcases.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Reviewed-by: Antia Puentes <apuentes@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

radeonsi: Fix memory leak in error path.

Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: fix build error because of missing param

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>

r600g: use do_endian_swap in texture swapping function

For some texture formats we need to take "do_endian_swap" into account
when configuring their swizzling.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

r600g: use do_endian_swap in color swapping functions

For some formats we need to take "do_endian_swap" into account when
configuring swapping for color buffers.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

r600g: set endianess of 16/32-bit buffers according to do_endian_swap

This patch modifies r600_colorformat_endian_swap(), so for 16-bit and for
32-bit buffers, the endianess configuration will be determined not only
by the color/texture format, but also by the do_endian_swap parameter.

The only exception is for array formats, which are always set to not do
swapping, because for them gallium sets an alias based on the machine's
endianess.

v4:
V_0280A0_COLOR_16_16 and V_0280A0_COLOR_16_16_FLOAT should be set to
8IN16 because the bytes inside need to be swapped even for array formats.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

r600g/radeonsi: send endian info to format translation functions

Because r600 GPUs can't do swap in their DB unit, we need to disable
endianess swapping for textures that are handled by DB.

There are four format translation functions in r600g driver:

- r600_translate_texformat
- r600_colorformat_endian_swap
- r600_translate_colorformat
- r600_translate_colorswap

This patch adds a new parameters to those functions, called
"do_endian_swap". When running in a big-endian machine, the calling
functions will check whether the texture/color is handled by DB -
"rtex->is_depth && !rtex->is_flushing_texture" - and if so, they will
send FALSE through this parameter. Otherwise, they will send TRUE.

The translation functions, in specific cases, will look at this parameter
and configure the swapping accordingly.

v4:
evergreen_init_color_surface_rat() is only used by compute and don't
handle DB surfaces, so just sent hard-coded FALSE to translation
functions when called by it.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "11.1 11.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

glsl: add ability to use essl 3.20

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>