radv/winsys: make IBs read-only for the GPU

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv/winsys: add RADEON_FLAG_READ_ONLY

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

radv/winsys: rework radv_amdgpu_bo_va_op()

Needed for the following commit.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

link mesautil with pthreads

../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `u_thread_setname':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../src/util/u_thread.h:66: undefined reference to `pthread_setname_np'
../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `thrd_join':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../include/c11/threads_posix.h:336: undefined reference to `pthread_join'
../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `u_thread_create':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../src/util/u_thread.h:48: undefined reference to `pthread_sigmask'
../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `thrd_create':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../include/c11/threads_posix.h:296: undefined reference to `pthread_create'
../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `u_thread_create':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../src/util/u_thread.h:50: undefined reference to `pthread_sigmask'
/builddir/build/BUILD/mesa-17.3.1/src/util/../../src/util/u_thread.h:50: undefined reference to `pthread_sigmask'
../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `call_once':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../include/c11/threads_posix.h:96: undefined reference to `pthread_once'
../../src/util/.libs/libmesautil.a(libmesautil_la-u_queue.o): In function `u_thread_get_time_nano':
/builddir/build/BUILD/mesa-17.3.1/src/util/../../src/util/u_thread.h:84: undefined reference to `pthread_getcpuclockid'
collect2: error: ld returned 1 exit status

Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Igor Gnatenko <ignatenko@redhat.com>

anv: Allow PMA optimization to be enabled in secondary command buffers

This was never enabled in secondary buffers because hiz_enabled was
never set to true for those.

If the app provides a framebuffer in the inheritance info when beginning
a secondary buffer, we can determine if HiZ is enabled and therefore
allow the PMA optimization to be enabled within the command buffer.

This improves performance by ~13% on an internal benchmark on Skylake.

v2: Use anv_cmd_buffer_get_depth_stencil_view().

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

glsl: Respect std430 layout in lower_buffer_access

Respect the std430 rules for determining offset and size of struct
members when using a std430 buffer. std140 rules lead to wrong buffer
offsets in that case.

Fixes my test case attached in Bugzilla. No piglit changes.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104492
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

nir: fix st_nir_assign_var_locations for patch variables

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

nvc0: enable bindless on kepler

All the functionality is in. Maxwell will take a little bit more
enablement work.

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

nvc0: add bindless image support for kepler

A part of the driver constbuf area is allocated for bindless images. Any
update requires uploading to all driver constbufs. This also extends the
driver constbuf to 64KB, up from 2KB.

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

nvc0: add support for bindless textures on kepler+

This keeps a list of resident textures (per context), and dumps that
list into the active buffer list when submitting. We also treat bindless
texture fetches slightly differently, wrt the meaning of indirect, and
not requiring the SAMPLER file to be used.

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

nv50/ir: use the image info in the instruction rather than decl

In preparation for bindless images, we have to retrieve the
target/format info from the instruction directly, as there will be no
declaration. Furthermore, for bound images, this information is still
available in the instruction, so we can drop the declaration-based
mechanism entirely.

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

nvc0/ir: safen up lowering logic against overwriting reused values

I'm fairly sure both of the changed sites are OK as-is, but they're
fragile, so this is just safening them up. Since this is happening
pre-ssa, we don't want to be overwriting values that may potentially get
used later on.

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

nvc0: update tic in-place when buffer address changes

This is helpful for bindless, where changing TIC id's is undesirable.

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

nvc0: ensure that pushbuf keeps ref to old text/tls bos

If we free the bo, then the PTE may get deallocated immediately. We have
to make sure that the submission includes a ref to the old bo so that it
remains mapped for the duration of the command execution.

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

i965: Torch public intel_batchbuffer_emit_dword/float helpers.

intel_batchbuffer_emit_float is dead code, it should go.

intel_batchbuffer_emit_dword only had one user, which had bungled using
them by forgetting to call intel_batchbuffer_require_space first.  So it
seems wise to delete these unsafe helpers.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

i965: Require space for MI_BATCHBUFFER_END.

intel_batchbuffer_emit_dword doesn't reserve space for the DWord it
emits.  In the past, we had some reserved batch space to ensure this
worked.  With the switch to growing batches, we need to actually request
space so that we grow if necessary.

Fixes: 2c46a67b4138631217141f (i965: Delete BATCH_RESERVED handling.)
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

i965: Shut up a few unused variable warnings.

If asserts are disabled, you get pointless warnings about devinfo
being used (it's used to assert on devinfo->gen).

ac: add ac_build_fmin/fmax helpers

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

mesa: remove dd_function_table::GetCompressedTexSubImage and clean it up

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

mesa: Tidy up the 4.6 section of GL4x.xml

The enums are moved to the top and indented like the rest of the file.
Comments are added to split up the function aliases by corresponding
extension. This should make no functional difference.

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

radv: remove unused radv_color_buffer_info::cb_clear_valueX

Found by inspection.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas nieuwenhuizen <bas@basnieuwenhuizen.nl>

anv: Take write mask into account in has_color_buffer_write_enabled

If we have a color attachment, but its writes are masked, this would
have still returned true. This is inconsistent with how HasWriteableRT
in 3DSTATE_PS_BLEND is set, which does take the mask into account.

This could lead to PixelShaderHasUAV not being set in 3DSTATE_PS_EXTRA
if the fragment shader does use UAVs, meaning the fragment shader may
not be invoked because HasWriteableRT is false. Specifically, this was
seen to occur when the shader also enables early fragment tests: the
fragment shader was not invoked despite passing depth/stencil.

Fix by taking the color write mask into account in this function. This
is consistent with how things are done on i965.

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

mesa: Add GL4.6 aliases of functions from GL_ARB_indirect_parameters

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

radv: enable denorms for 64-bit and 16-bit floats

Similar to RadeonSI.

This fixes:
dEQP-VK.image.texel_view_compatible.graphic.basic.attachment_read.bc*r16g16b16a16_sfloat
dEQP-VK.image.extended_usage_bit.attachment_write.r16_sfloat

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

amd/common: correctly detect if we need ring buffers

When allocate_user_sgprs() was called, ctx->stage was actually
unset and 0 is for the vertex shader. This doesn't change
anything for now because of the spill support thing.

Though, the number of user SGPRs has to be fixed for merged
shaders on GFX9. It was broken before anyway.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

amd/common: use ac_image_load when lod is zero

This might decrease VGPR spilling, because we no longer
have to use v4i32 for 2D fetches when level == 0. We now
use v2i32 for those cases.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radv: limit the scissor bug workaround to Vega 10 and Raven

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

glsl/standalone: set MaxTransformFeedbackBuffers

Using 4, as it is the default value on mesa. See mesa/main/config.h
and the following commit that introduced the value:
15ac66e331abdab12e882d80a6b4f647bc905298

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

glsl/standalone: set MaxVertexStreams

ARB_transform_feedback3 sets a minimum of 1, ARB_gpu_shader5 a minimum
of 4. It shouldn't matter too much, so choosing the later.

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

glsl/standalone: set MaxUniformBufferBindings

Used to handle how many ubo you can define on the context. Minimimum
defined as 36 on ARB_uniform_buffer_object spec, up to 84 on OpenGL
4.6 (12 per stage at each moment).

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

glsl/standalone: point which arguments are mandatory

Every now and then I execute the standalone compiler, get the
non-version error, and need to remember what I'm doing wrong

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

ac: rework ac_llvm_extract_elem()

Simplifies the logic a little and asserts index is 0.

Suggested-by: Nicolai Hähnle <nhaehnle@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

st/glsl_to_nir/radeonsi: enable tessellation shaders

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

gallium/tgsi: add patch support to tgsi_get_gl_varying_semantic()

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: add dummy implementation of si_nir_scan_tess_ctrl()

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

ac/radeonsi: add load_tess_coord() to the abi

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: make si_llvm_emit_tcs_epilogue compatible with emit_outputs abi

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi/nir: gather tess properties

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

ac/radeonsi: add tcs_rel_ids to the abi

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: add unpack_llvm_param() helper

This allows us to pass the llvm param directly rather than looking
it up.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

ac: add {tcs,tes}_patch_id to the abi

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: add nir support for tcs outputs

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

ac: move some helpers to ac_llvm_build.c

We will call these from the radeonsi NIR backend.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

ac: add store_tcs_outputs() to the abi

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

radeonsi: add si_nir_load_input_tcs()

V2: drop type param and just use ctx->i32

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

radeonsi: add get_dw_address_from_generic_indices() helper

This will be used by both the tgsi and nir backends.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

ac: call load_tcs_input() via the abi

This also enables some code sharing with tes.

V2: drop type param and just use ctx->i32

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

ac: add load_tes_inputs() to the abi

V2: drop type param and just use ctx->i32

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

radeonsi: add si_nir_load_input_tes()

V2: drop type param and just use ctx->i32

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

swr/rast: fix invalid sign masks in avx512 simdlib code

Should be 0x80000000 instead of 0x8000000.

Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>

radv: Use correct flush bits for flushing L2 during CB/DB flushes.

Copied from radeonsi.

Putting in the correct metadata flush commands for eventually not
flushing L2 on CB/DB switch.

Does not remove the need for V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT
at the moment.

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

radv: Invalidate L1 for VK_ACCESS_VERTEX_ATTRIBUTE_READ_BIT.

These are just shaders reads, so we need to invalidate L1.

Fixes: 6dbb0eaccc "radv: handle subpass cache flushes"
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

radv/gfx9: reduce the number of input VGPRs for the GS stage

This can still be improved, but let's start with this.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

amd/common: scan if gl_PrimitiveID is used before translating to LLVM

It makes more sense to move all scan stuff in the same place.
Also, we don't really need to duplicate the uses_primid field
for each stages.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

amd/common: scan if gl_InvocationID is used

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

egl/android: Fix build break with dri2_initialize_android _EGLDisplay parameter

Commit 2f421651aca9 ("egl: let each platform decided how to handle
LIBGL_ALWAYS_SOFTWARE") broke the build due to copy-n-paste of misnamed
function parameter.:

src/egl/drivers/dri2/platform_android.c:1183:8: error: use of undeclared identifier 'disp'

Rather than just fixing 'disp', rename the function parameter 'dpy' to
'disp' to align with the other EGL platforms' implementations.

Fixes: 2f421651aca9 ("egl: let each platform decided how to handle LIBGL_ALWAYS_SOFTWARE")
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Acked-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Rob Herring <robh@kernel.org>

anv: Add missing unlock in anv_scratch_pool_alloc

Fixes hangs seen due to the lock not being released here.

Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

mesa/bindless: fix missing image _Layer initialization

Some later code relies on _Layer to set first/last_layer. Make sure it's
always initialized.

Detected by valgrind's conditional jump/move with uninit value logic.

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

radeonsi: fix alpha-to-coverage if color writes are disabled

If alpha-to-coverage is enabled, we have to compute alpha
even if color writes are disabled.

Signed-off-by: Józef Kucia <joseph.kucia@gmail.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

ac: rename has_sync_file to has_fence_to_handle.

sync_files are in linux since 4.7, while the amdgpu fence_to_handle
ioctl is only in 4.15.

In particular we don't need it for sync_file in radv, because
everything happens via syncobjs, which got support earlier than
fence_to_handle.

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

ac/nir: Handle loading data from compact arrays.

Fixes: f4e499ec791 "radv: add initial non-conformant radv vulkan driver"
Reviewed-by: Dave Airlie <airlied@redhat.com>

radv: Allow writing 0 scissors.

When rasterization is disabled we can have that few.

Fixes: 76603aa90b8 "radv: Drop the default viewport when 0 viewports are given."
Reviewed-by: Dave Airlie <airlied@redhat.com>

radv: Use correct HTILE expanded words.

Seems like users are actually hitting 0xFFFFFFFF actually making
things broken for them, and the mad max regression is fixed, so
lets put this in once more.

v2: Use 0xf for depth-only htile. (Dave)

Fixes: af2844116fd "radv: Revert HTILE reset word to 0xFFFFFFFF."
Reviewed-by: Dave Airlie <airlied@redhat.com>

ac: rename has_syncobj_wait -> has_syncobj_wait_for_submit

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

braodcom/vc5: Fix internal type/bpp for RGB10_A2UI images.

I found that we were getting GPU hangs on most tests rendering to them,
and the simulator was assertion failing.

broadcom/vc5: Try to fix up compressed texture load/store.

We were trying to load/store the logical width/height number of compressed
blocks.  As long as the textures were large, single-level, and the
load/store at (0,0), it kind of worked.

broadcom/vc5: Fix image_h value for CPU-side tiling on miplevels > 1.

Fixes overflow that caused failure in
dEQP-GLES3.functional.texture.filtering.2d.sizes.128x128_linear.

broadcom/vc5: Fix discard_if during control flow.

I want to do the SETMSF.IFA to discard only if execute == 0 and cond, so
our dest of the PUSHZ needs to be nonzero if execute or !cond are nonzero.

Fixes dEQP-GLES3.functional.shaders.discard.dynamic_loop_dynamic.

broadcom/vc5: Disable early Z when the stencil func isn't ALWAYS.

Apparently the other funcs will have observable differences when early Z
is enabled.

Fixes (new) simulator assertion failures in
dEQP-GLES3.functional.rasterizer_discard.basic.clear_depth.

broadcom/vc5: Don't emit component 3/4 F16 TLB writes for float/vec2.

Fixes a simulator assertion failure on
dEQP-GLES3.functional.fragment_out.array.fixed.r8_highp_float.

nir: Add a helper to get the uvec4 type.

I needed this in the vc5 compiler.

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

broadcom/vc5: Introduce enums for internal depth/type, with V3D prefixes.

broadcom/xml: Fix up safe name confusion with prefixing.

For enums we were doubling the underscore if the value had a numeric first
character of its name (which safe_name() adds an underscore to).  A little
helper function cleans up the other instance of prefixing while also
fixing this.

broadcom/vc5: Turn the decimate mode field into an enum in the XML.

broadcom/vc5: Turn the output image format into an enum.

broadcom/vc5: Turn the CLE XML's memory format into an enum.

broadcom/vc5: Emit flat shade flags for varying components > 24.

This means that with no flatshading we'll emit the single-byte
ZERO_ALL_FLAT_SHADE_FLAGS, and otherwise emit a set of FLAT_SHADE_FLAGS to
get all the bits we need set.

There's a _SET enum in the packet we could use to possibly set entire
ranges of the bitfield without using another packet, but this at least
fixes the conformance failure.

broadcom/vc5: Emit proper flatshading code for glShadeModel(GL_FLAT).

In updating the simulator, behavior changed slightly so that our old code
wasn't getting glxgears's flatshading interpolated right.  Emit flat
shading code just like we would for a normal flat-shaded varying, by
passing a flag in the shader key for glShadeModel(GL_FLAT) state and
customizing the color inputs based on that.

braodcom/vc5: Rely on OVRTMUOUT always being set.

It seems that the HW team has decided that it's the only supported mode,
and it's the mode I actually meant to be using but forgot.  Our table of
return_32_bit should have matched the default non-OVRTMUOUT behavior, so
this change should be invisible.

However, the change revealed that some my return_size checks for swizzling
were a bit confused in the shadow case, so I had to move them to draw time
once we have both the sampler and the view together.

Fixes assertion failures in the updated simulator, where the non-OVRTMUOUT
support has been removed.

broadcom/vc5: Move texture return channel setup into the compiler.

The compiler decides how many LDTMUs we're going to emit, and that must
match the P1 flags.  This brings the return channel counting to a single
place (so all that's passed into the compiler is "how many return channels
you may request from this texture's format), and was a necessary step for
shadow samplers once we stop using OVRTMUOUT=0.

broadcom/vc5: Switch to setting the primitive list format in the RCL.

This means that we get a single copy of it emitted, instead of once at the
start of each tile (though it's still executed once per tile).  Fixes
assertion failures with the updated simulator.

broadcom/vc5: Switch to using the C++ interface for the simulator.

In newer versions they've removed the C interface, so make one here.  This
also isolates the Mesa codebase from the simulator codebase, so we don't
have conflicts over things like "unreachable"

mesa: Add GL_UNSIGNED_INT_2_10_10_10_REV OES read type for BGRX1010102.

As Marek noted, the GL_RGBA + GL_UNSIGNED_INT_2_10_10_10_REV type
combo is also good for readback of BGRX1010102 framebuffers, not
only for BGRA1010102 framebuffers for use with glReadPixels()
under GLES, so add it for the GL_IMPLEMENTATION_COLOR_READ_TYPE_OES
query.

Successfully tested on gallium r600 driver with a (quickly hacked
for RGBA 10 10 10 0) dEQP testcase
dEQP-EGL.functional.wide_color.window_1010102_colorspace_default.

Suggested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

st/dri: Add option to control exposure of 10 bpc color configs.

Some clients may not like rgb10 fbconfigs and visuals.
Support driconf option 'allow_rgb10_configs' on gallium
to allow per application enable/disable.

The option defaults to enabled.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

st/dri: Add support for BGR[A/X]1010102 formats.

Exposes RGBA 10 10 10 2 and 10 10 10 0 visuals and
fbconfigs for rendering.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

st/dri: Support texture_from_pixmap for BGR[A/X]1010102 formats.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

st/dri2: Add buffer handling for BGR[A/X]1010102 formats.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

st/dri2: Add format translations for BGR[A/X]1010102 formats.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

st/mesa: Handle BGR[A/X]1010102 formats.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/wayland: Add Wayland shm swrast support for RGB10 winsys buffers.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/wayland: Add Wayland dmabuf support for RGB10 winsys buffers. (v2)

Successfully tested under Weston 3.0.
Photometer confirms 10 rgb bits from rendering to display.

v2: Rebased onto master for dri2_teardown_wayland().

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/wayland: Add Wayland drm support for RGB10 winsys buffers.

Successfully tested under Weston 3.0.
Photometer confirms 10 rgb bits from rendering to display.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/x11: Handle depth 30 drawables for EGL_KHR_image_pixmap.

Enables eglCreateImageKHR() with target set to
EGL_NATIVE_PIXMAP_KHR to handle color depth 30
X11 drawables.

Note that in theory the drawable depth 32 case in the
current implementation is ambiguous: A depth 32 drawable
could be of format ARGB8888 or ARGB2101010, therefore an
assignment of __DRI_IMAGE_FORMAT_ARGB8888 for a pixmap of
ARGB2101010 format would be wrong. In practice however, the
X-Server (as of v1.19) does not provide any depth 32 visuals
for ARGB2101010 EGL/GLX configs. Those are associated with
depth 30 visuals without an alpha channel instead. Therefore
the switch-case depth 32 branch is only executed for ARGB8888
pixmaps and we get away with this.

Tested with KDE Plasma 5 under X11, DRI2 and DRI3/Present,
selecting EGL + OpenGL compositing and different fbconfigs
with/without 2 bit alpha channel. glxinfo confirms use of
depth 30 visuals for ARGB2101010 only.

Suggested-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/x11: Handle depth 30 drawables under software rasterizer.

For fixing eglCreateWindowSurface() under swrast, as tested
with LIBGL_ALWAYS_SOFTWARE=1.

Suggested-by: Eric Engestrom <eric.engestrom@imgtec.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

egl/x11: Match depth 30 RGB visuals to 32-bit RGBA EGLConfigs.

Similar to the matching of 24 bit RGB visuals to 32-bit
RGBA EGLConfigs, so X11 compositors won't alpha-blend any
config with a destination alpha buffer during compositing.

Additionally this fixes failure to select ARGB2101010
configs via eglChooseConfig() with EGL_ALPHA_BITS 2 on
a depth 30 X-Screen. The X-Server doesn't provide any
visuals of depth 32 for ARGB2101010 configs, it only
provides depth 30 visuals. Therefore if we'd only match
ARGB2101010 configs to depth 32 RGBA visuals, we would
not ever get a visual for such a config.

This was apparent in piglit tests for egl configs, which
are fixed by this commit.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

mesa: Add GL_RGBA + GL_UNSIGNED_INT_2_10_10_10_REV for OES read type.

This format + type combo is good for BGRA1010102 framebuffers
for use with glReadPixels() under GLES, so add it for the
GL_IMPLEMENTATION_COLOR_READ_TYPE_OES query.

Allows successful testing of 10 bpc / depth 30 rendering with dEQP test
case dEQP-EGL.functional.wide_color.window_1010102_colorspace_default.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

i965/screen: Honor 'allow_rgb10_configs' option. (v2)

Allows to prevent exposing RGB10 configs and visuals to
clients.

v2: Rename expose_rgb10_configs to allow_rgb10_configs,
    as suggested by Emil.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

dri/common: Add option to allow exposure of 10 bpc color configs. (v2)

Some clients may not like RGB10X2 and RGB10A2 fbconfigs and
visuals. Add a new driconf option 'allow_rgb10_configs' to
allow per application enable/disable.

The option defaults to enabled.

v2: Rename expose_rgb10_configs to allow_rgb10_configs,
    as suggested by Emil. Add comment to option parsing,
    to make sure it stays before the ->InitScreen().

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

i965/screen: Add basic support for rendering 10 bpc/depth 30 framebuffers. (v3)

Expose formats which are supported at least back to Gen 5 Ironlake,
possibly further. Allow creation of 10 bpc winsys buffers for drawables.

glxinfo now lists new RGBA 10 10 10 2/0 formats.

v2: Move the BGRA/BGRX1010102 formats before the RGBA/RGBX8888
    32 bit formats, as the code comments require. Thanks Emil!
    Update num_formats from 3 to 5, to keep the special Android
    handling intact.

v3: Use num_formats = ARRAY_SIZE(formats) - 2 as suggested by Tapani,
    to only exclude the last 2 Android formats, add Tapani's r-b.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>

i965/screen: Add XRGB2101010 and ARGB2101010 support for DRI3.

Allow DRI3/Present buffer sharing for 10 bpc buffers.
Otherwise composited desktops under DRI3 will only display
black client areas for redirected windows.

Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Signed-off-by: Marek Olšák <marek.olsak@amd.com>