mesa: fix format conversion bug in get_tex_rgba_uncompressed()

We need to set the need_convert flag with each loop iteration, not
just when the rgba pointer is null.

Bug reported by Markus Müller <mueller@imfusion.de> on mesa-users list.
Fixes new piglit arb_texture_float-get-tex3d test.

Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

radeonsi: add support for cull distances. (v1.1)

This should be all that is required for cull distances to work
on radeonsi.

v1.1: whitespace cleanup, add docs fix clipdist_mask usage.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

spirv: replace assert with unreachable

Fixes uninitialised warning for coord_components.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

isl/state: Add some asserts about format capabilities

This keeps invalid surface states from leaking through and potentially
hanging the GPU.  We shouldn't actually be hitting this on a regular basis,
but a helpful assert is better than a hang.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

intel/blorp: Add a format parameter to blorp_fast_clear

This allows us to use the actual render format as opposed to the texture
format.  I don't know that the hardware actually cares in the case of fast
clears, but it certainly seems more correct.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Move blorp into src/intel/blorp

At this point, blorp is completely driver agnostic and can be safely moved
into its own folder.  Soon, we hope to start using it for doing blits in
the Vulkan driver.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Remove the remaining brw prefixes from the blorp.h API

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Use isl_format_get_depth_format for setting depth formats

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Move the type_size function declartaions to brw_nir.h

Signed-of-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>

i965: Move get_fast_clear_rect to blorp_clear.c

This has been the only caller since we deleted the meta fast clear code.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Roll brw_get_ccs_resolve_rect into blorp_ccs_resolve

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Get rid of most brw and mesa includes

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965: Move the hiz_op enum to blorp

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Add a fast_clear_op enum

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Make blorp_addres::buffer a void*

The Vulkan driver doesn't use libdrm so we don't want to bake that in.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Get rid of brw_context

This commit switches all of blorp from taking a brw_context to taking a
blorp_context and, where useful, a void *batch.  In the GL driver, we only
have one active batch at a time so the brw_context *is* the batch but in
Vulkan, batch will point to the anv_cmd_buffer in which we are building
instructions.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Take a blorp_context in compile_nir_shader

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/meta_util: Take an isl_device in get_fast_clear_rect

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Add an "exec" function pointer to blorp_context

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Remove some i965-isms from genX_blorp_exec.h

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Move the guts of brw_blorp_exec into genX_blorp_exec.c

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Pull the guts of blorp_exec into a driver-agnostic header

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp/exec: Refactor to use a new blorp_batch struct

This gets rid of brw_context throughout the core of the state setup code.
Instead, it is replaced with blorp_batch which contains a pointer to the
blorp_context and a void* that the driver can use for its own blorp data.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Add a helper for allocating binding tables and surface states

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Use BT_INDEX enums for setting up the binding table

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Shorten binding table index enum names

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp/genX: Add a blorp_surface_reloc helper

Previously, we passed the buffer address (as per the latest offset from the
kernel) to ISL to use when it filled out the surface state.  We then called
drm_intel_bo_emit_reloc() to add the relocation to the list.  The newly
added blorp_surface_reloc helper adds the relocation to the list and then
writes the buffer address directly into the surface state.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Use blorp_address in brw_blorp_surface instead of bo+offset

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Pull emit_surface_state into genX_blorp_exec.c

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Add driver mocs settings to the context

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp/genX: Move emit_urb_config into another helper

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Use gen6_upload_urb

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/gen6: Refactor gen6_upload_urb

This splits it into two functions very similar to gen7_upload_urb.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp/genX: Pull emit_3dstate_multisample into a helper

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp/genX: Add helpers for allocating various bits of state

This pulls most of the brw-specific bits into helpers with generic names.
Later, those will become the driver hooks for generic code.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

i965/blorp: Expose the shader cache through function pointers

This sanitizes blorp's access to the i965 driver's shader cache by patching
it through the blorp_context.  When we start using blorp in Vulkan, we will
simply have to implement such a caching interface in the Vulkan driver.

Note: In my first attempt at this, I simplified it down to a single
upload_shader entrypoint and implemented the caching inside of blorp.  This
doesn't work, however, because the i965 driver will, on occation, dump its
entire cache and start over.  When this happens, blorp needs to be able to
recompile its shaders and re-upload them.  It's easiest to just expose the
caching interface.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>

i965/blorp: Add a blorp_context struct and init/finish funcs

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

android: intel: Flatten the makefile structure

Android porting of commit bebc1a1 "intel: Flatten the makefile structure"

Automake approach was followed, by moving makefiles a level up,
naming them Android.genxml.mk and Android.isl.mk,
performing the necessary adjustments to the paths,
adding src/intel/Android.mk and fixing mesa top level makefile.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>

clover: Use device cap to query pointer size instead of hardcoded 32bits

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97513
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

gallium: add cap to export device pointer size

v2: document the new cap
v3: fix 80 char limit in screen.rst

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>

svga: s/unsigned/enum pipe_shader_type/

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

i965/hsw: Enable ARB_ES3_1_compatibility extension

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

r600g: Clean up defined magic numbers for TGSI opcodes

Small code clean up that removes magic numbers where a TGSI
opcode has been defined.

No functional change expected as each opcode is unsupported on
the respective hardware.

Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: James Harvey <lothmordor@gmail.com>

r600g: Avoid duplicated initialization of TGSI_OPCODE_DFMA

As reported by Clang, TGSI_OPCODE_DFMA (defined magic number 118) is
currently initialized twice for Cayman and Evergreen.

When Jan Vesely added double precision FMA opcode it did make sense
to locate it immediately after TGSI_OPCODE_DMAD, although this is
out of order.

This change cleans up the prior magic number definition and ensures
any later reordering of this struct will not create problems.

Prior change was:

  commit 015e2e0fce3eea7884f8df275c2fadc35143a324
  Author: Jan Vesely <jan.vesely@rutgers.edu>
  Date:   Sat Jul 2 16:14:54 2016 -0400

      r600g: Add double precision FMA ops

      Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96782
Fixes: 54c4d525da7c7fc1e103d7a3e6db015abb132d5d ("r600g: Enable FMA on chips that support it")
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Tested-by: James Harvey <lothmordor@gmail.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: James Harvey <lothmordor@gmail.com>

i915g: Fix typo in i915_translate_instruction()

Noticed this error in a debug message whilst reviewing
https://bugs.freedesktop.org/show_bug.cgi?id=97477

This patch doesn't go towards fixing that bug, but at
least may clarify future debug output.

Signed-off-by: Rhys Kidd <rhyskidd@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

vc4: Handle discards while in control flow.

I missed this while adding loop support because the discard test inside a
loop was crashing before, anyway.  Fixes piglit glsl-fs-discard-04.

vc4: Mark when we add discards while lowering blend state.

nir: Update shader info when adding discards

vc4 is about to start using the shader info field to set up discard
handling.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

swr: [rasterier core] fix GetRasterizerFunc selection

Only rasterize scissor edges if one or more scissor/viewport
rects are not hottile aligned.

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer core] whitespace cleanup

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer jitter] reimplement SCATTERPS

Implement SCATTERPS as a dynamic loop based on mask set bits
instead of a static compile time loop.

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer core] upper left rule for scissors

Fixes upper left rule for scissors and viewport/scissor macrotile alignment.

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer scripts] undef DEFINE_KNOB after usage

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer core] minor cleanup to thread initialization

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer core] remove KNOB_MAX_THREADS

Use dynamic memory allocation for per-thread data

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer core] track guardbands per viewport rect

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

swr: [rasterizer core] per-primitive viewports/scissors

- use per-primitive viewports throughout the pipeline.
- track whether all available scissor rects are tile aligned.
  Causes failures, so not taken into account when choosing rasterizer yet.

Signed-off-by: Tim Rowley <timothy.o.rowley@intel.com>

radeonsi: Don't use global variables for tess lds

We were allocating global variables for the maximum LDS size
which made the compiler think we were using all of LDS, which
isn't the case.

Reviewed-By: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

softpipe: (trivial) honor render_condition_enabled for clear_rt/clear_ds

llvmpipe: (trivial) honor render_condition_enabled for clear_rt/clear_ds

gallium: Use enum pipe_shader_type in set_shader_images()

Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: Use enum pipe_shader_type in set_shader_buffers()

Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: Use enum pipe_shader_type in set_sampler_views()

Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium: Use enum pipe_shader_type in bind_sampler_states() (v2)

v1 → v2:
 - Fixed indentation (noted by Brian Paul)
 - Removed second assert from nouveau's switch statements (suggested by
   Brian Paul)

Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/radeon: clear dirty_level_mask when discarding CMASK

This fixes: GL45-CTS.texture_barrier.*

Tested-by: Michel Dänzer <michel.daenzer@amd.com>

tgsi/scan: remember sampler view types

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

st/vdpau: use temporary buffers while applying filters

Use temporary buffers so that we don't read and write to the
same surface at the same time. We don't need to use linear
layout now.

v2: rebase the patch against reverted change

Signed-off-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

st/vdpau: Revert "change the order in which filters are applied(v3)"

This reverts commit 09dff7ae2e179d5a3490481762c6bd3d50430c9f.

Turned out this can cause some artifacts in the output. Let's revert
it for now until we have sorted out all issues.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>

i965/vec4: remove the generator hack for dual instanced GS

This hack was introduced in commit 03ac2c7223f7645e3:
i965/gs: Fix up gl_PointSize input swizzling for DUAL_INSTANCED gs

Specifically to fixup the code we emitted to deal with gl_PointSize inputs
in dual instance mode, where we were emitting a MOV to copy the point
size from .w (where the hardware delivers it) to .x (because code will
expect this to be a float). This meant that we were emitting a MOV
to an ATTR destination that could have a width of 4 (in dual instanced
mode) so it was necessary to fix the execution size and regioning of the
instruction.

Fortunately, Ken fixed this in 67c5d00273ca2:
i965/vec4/gs: Stop munging the ATTR containing gl_PointSize.

by using a WWWW swizzle instead of a MOV, and as the commit log in that
patch states, we no longer emit instructions with ATTR destinations, so
that makes the fixup code in the generator unnecessary.

Reviewed-by: Francisco Jerez <currojerez@riseup.net>

glsl: initialise pointer to NULL

Fixes uninitialised warning and covery defect.

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

Update Khronos-supplied headers to r33100

As retrieved from opengl.org and khronos.org. Maintained the APPLE hack
in GL/glext.h manually. Added gl32.h.

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

mesa: add EXT_texture_cube_map_array support

This is identical to OES_texture_cube_map_array support. dEQP has tests
which use this extension. Also it is part of AEP.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: remove OES_shader_io_blocks enable

This extension should just be available whenever ES 3.1 is available.
With the new extension verification infrastructure, it will only be
enable-able on a #version 310 es shader, rendering the original reason
for having a separate enable moot.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

main: use KHR_blend_equation_advanced enable for ES 3.2 availability

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>

main: add missing EXTRA_END in OES_sample_variables get check

Fixes: 3002296cb68 (mesa: add GL_OES_shader_multisample_interpolation support)
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>

scons: Take indirect gl_and_es_API.xml dependencies in consideration.

Same as 26a8f76ba1a0229ee3332eaa6f1aea89d617cf3d.

Trivial.

docs: sort extensions in relnotes

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

isl: Allow multisampled array textures

This probably isn't the only thing that needs to be done to get
multisampled array textures working in Vulkan but I think this is all that
ISL really needs and it does fix 8 of the new CTS tests.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Chad Versace <chadversary@chromium.org>

mesa/version: OpenGL ES 3.2 depends on OES_texture_cube_map_array

This has a separate enable from ARB_texture_cube_map_array.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Enable OES_texture_cube_map_array on Gen8+

These are the only platforms that current expose OES_geometry_shader.
Once OpenGL ES 3.1 and OES_geometry_shader are enabled on Gen7, this
extension can be enabled there as well.

Gen6 will never get OpenGL ES 3.1, so it will never get this
extension... even though it has the desktop OpenGL extension.  Alas.

NOTE: This causes a failure on Gen8+ platforms in
ES3-CTS.gtf.GL3Tests.texture_storage.texture_storage_texture_targets.
The test only fails because it doesn't know that 0x9009 is a valid
value when the extension exists.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Add support for OES_texture_cube_map_array

This has a separate enable flag because this extension also requires
OES_geometry_shader.  It is possible that some drivers may support
OpenGL ES 3.1 and ARB_texture_cube_map but not support
OES_geometry_shader.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Add and use _mesa_has_texture_cube_map_array helper

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Use _mesa_has_ARB_texture_cube_map_array instead of open-coding it

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Cosmetic changes in legal_texobj_target

Use bool instead of GLboolean and constify ctx.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Rearrange legal_texobj_target to look more like _mesa_legal_get_tex_level_parameter_target

This makes it a bit easier to add support for more features in different
APIs.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Add and use has_texture_cube_map_array helper

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Mark cube map array sampler types as reserved in GLSL ES 3.10

All the GLSL 4.x keywords were added to the list of reserved keywords
in GLSL ES 3.10.  As far as I can tell, these are the only ones that
were missed.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Silence unused parameter warning

glsl/lower_buffer_access.cpp:324:55: warning: unused parameter ‘var’ [-Wunused-parameter]
                                          ir_variable *var,
                                                       ^

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Enable GL_OES_geometry_shader on Gen8+

Gen7 can get this extension (and GL_OES_shader_io_blocks) as soon as the
rest of OpenGL ES 3.1 is enabled.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl/linker: Fail linking on ES if uniform precision qualifiers don't match

When GL_OES_geometry_shader is enabled, this fixes
dEQP-GLES31.functional.shaders.linkage.geometry.uniform.rules.type_mismatch_1.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Allow invocations layout qualifier with GL_OES_geometry_shader

Fixes

dEQP-GLES31.functional.geometry_shading.instanced.geometry_1_invocations
dEQP-GLES31.functional.geometry_shading.instanced.invocation_per_layer_2d_array
dEQP-GLES31.functional.geometry_shading.instanced.invocation_per_layer_2d_multisample_array
dEQP-GLES31.functional.geometry_shading.instanced.invocation_per_layer_3d
dEQP-GLES31.functional.geometry_shading.instanced.invocation_per_layer_cubemap
dEQP-GLES31.functional.geometry_shading.instanced.multiple_layers_per_invocation_2d_array
dEQP-GLES31.functional.geometry_shading.instanced.multiple_layers_per_invocation_2d_multisample_array
dEQP-GLES31.functional.geometry_shading.instanced.multiple_layers_per_invocation_3d
dEQP-GLES31.functional.geometry_shading.instanced.multiple_layers_per_invocation_cubemap
dEQP-GLES31.functional.geometry_shading.query.geometry_shader_invocations

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

glsl: Allow gl_InvocationID and gl_Layer with GL_OES_geometry_shader

Fixes

dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_2d_array
dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_2d_multisample_array
dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_3d
dEQP-GLES31.functional.geometry_shading.layered.fragment_layer_cubemap

v2: Don't enable gl_ViewportIndex in GLSL ES 3.20.  Noticed by Ilia.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Allow GL_EXT_geometry_shader and GL_EXT_geometry_point_size

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Document reasons for allowing XFB drawing modes in GLES 3.1 w/GL_OES_geometry_shader

Originally this patch added the checks to allow the draw calls with XFB,
but commit 2dabd497 beat me to it.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

mesa: Remove redundant _mesa_has_shader_subroutine

The checks in _mesa_has_shader_subroutine are slightly different than
_mesa_has_ARB_shader_subroutine, but they're not different in a way
that matters.  The only way to have ctx->Version >= 40 is if
ctx->Extensions.ARB_shader_subroutine is set.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>

nouveau: Enable EXT_texture_env_dot3 on NV10 and NV20

GL_DOT3_RGB_EXT and GL_DOT3_RGBA_EXT. are nearly identical to
GL_DOT3_RGB and GL_DOT3_RGBA.  The only difference is the _EXT
versions do not apply the post-scale.  Just smash logscale to 0 so
that RC_OUT_SCALE_1 is always used.

NOTE: I have not actually tested this.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>

nouveau: Fix non-1x post-scale factor with DOT3 combiner

Fixes long standing bug on NV10 and NV20 where using a non-1x RGB or A
post-scale with GL_DOT3_RGB or GL_DOT3_RGBA texture environment would
not work.

The old combiner math uses HALF_BIAS_NORMAL and HALF_BIAS_NEGATE.  The
GL_NV_register_combiners defines these as

    HALF_BIAS_NORMAL_NV       max(0.0, e) - 0.5
    HALF_BIAS_NEGATE_NV       -max(0.0, e) + 0.5

In order to get the correct result from the dot-product, the
intermediate dot-product must be multiplied by 4.  This is a literal
implementation of the GL_ARB_texture_env_dot3 spec.  It also requires
using the register combiner post-scale.  As a result, the post-scale
cannot be used for the post-scale set by the application.

The new combiner math uses EXPAND_NORMAL and EXPAND_NEGATE.  The
GL_NV_register_combiners defines these as

    EXPAND_NORMAL_NV          2.0 * max(0.0, e) - 1.0
    EXPAND_NEGATE_NV          -2.0 * max(0.0, e) + 1.0

Since this fully expands the value to [-1, 1] range, the intermediate
dot-product result is the desired value.  This leaves the register
combiner post-scale available for application use.

NOTE: I have not actually tested this.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>

docs: Rename GL3.txt to features.txt

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Suggested-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

docs: Update GL3.txt for OpenGL 4.x on i965-ish hardware

v2: Note that GL_KHR_blend_equation_advanced and
GL_KHR_blend_equation_advanced_coherent are done.

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

docs: add links to clarify patch mailing section

* Changed "Mesa mailing list" to "mesa-dev mailing list" to clarify
  which list patches should be sent to

* Added an explicit link to
  https://lists.freedesktop.org/mailman/listinfo/mesa-dev to show
  where to subscribe to the list

* Added a link to https://git-scm.com/docs/git-send-email to help new
  users of that command

v2: add signed-off-by

Signed-off-by: Nicholas Bishop <nicholasbishop@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Chad Versace <chadversary@chromium.org>