i965: Rename intel_asm_annotation -> brw_disasm_info

It was the only file named intel_* in the compiler.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Rewrite disassembly annotation code

The old code used an array to store each "instruction group" (the new,
better name than the old overloaded "annotation"), and required a
memmove() to shift elements over in the array when we needed to split a
group so that we could add an error message. This was confusing and
difficult to get right, not the least of which was  because the array
has a tail sentinel not included in .ann_count.

Instead use a linked list, a data structure made for efficient
insertion.

Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Simplify annotation_insert_error()

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Move common code out of #ifdef

I'm going to change the call in a later patch and with the difference in
indentation level it wasn't immediately obvious that the calls were
identical.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Remove DWord length from MI_FLUSH_DW definition

Fixes: 6165fda59b8 ("i965: Program DWord Length in MI_FLUSH_DW")
Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

anv/cmd_buffer: Take bo_offset into account in fast clear state addresses

Otherwise, if the image is not bound to the start of the buffer, we're
going to be reading and writing its fast clear state in the wrong spot.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable@lists.freedesktop.org

anv/cmd_buffer: Advance the address when initializing clear colors

Found by inspection

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Cc: mesa-stable@lists.freedesktop.org

radeon/video: enable encode support for raven

Enable h.264 encode for vcn hardware (raven)

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeonsi: enable vcn encode

Enable vcn encode by creating radeon_encoder for vcn.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add create encoder

Add implementation for create_encoder interface for vcn encode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode get feedback

Add implementation for get_feedback interface for vcn encode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode destroy

Add implementation for destroy interface for vcn encode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode end frame

Add implementation for end_frame interface for vcn encode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode bitstream

Add implementation for encode_bitstream interface for vcn encode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode begin frame

Add implementation for begin_frame interface for vcn encode.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode header implementations

Implement encoding of sps, pps, and silce headers using the newly added h.264
header coding descriptors functions based on h.264 specs.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add encode header algorithms

Since bitstream headers, e.g. sps, pps, slice, are encoded in driver side, we
need to add corresponding algorithms that required to generate those headers.
According to h.264 specs, signed/unsigned interger Exp-Golomb-coded syntax
element with left bit first (code_se and code_ue) and unsigned integer using
n bits (code_fixed_bits) descriptors function are needed. Therefore, adding
those algorithms and related variables and output algorithms here.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add ib implementations

Implement required ibs and command buffer submission interfaces for vcn encode

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add common encode part

Add a skeleton pipe video interface and encode ib interface for video encode
on vcn hardware. Add function defines and structures for vcn encode. Update
Makefile.sources and meson.build with newly added files.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

st/va: implement poc type

pic_order_cnt_type is a required variable when encoding both sps and
slice header, therefore we need to get this value from st, e.g. vaapi
interface, and then pass it to radeon driver for encoding headers.

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

vl: add poc type

Different from vce encoding, vcn encoding requires driver side to encode
bitstream header, such as pps, sps and slice header. pic_order_cnt_type
is a required variable when encoding both sps and slice header, therefore
we need to add this new variable here, and hold the value passed from st,
e.g. vaapi interface

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

winsys/amdgpu: add vcn enc cs support

New cs support is needed for vcn encode

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/common: add vcn enc ip info query

New ip info query is needed for vcn encode

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/winsys: add vcn enc ring type

New ring type is needed for vcn encode

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

radeon/vcn: add vcn encode interface

Add a new header file for vcn encode interface

Signed-off-by: Boyuan Zhang <boyuan.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>

gallium/aux/util/u_surface.c: Silence warnings and remove unneeded MAYBE_UNUSED

 * Explicitely convert values to int in comparison.
 * Remove one MAYBE_UNUSED that is actually not needed.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_debug_image.c: Silence warnings -Wunused-param

Decorate the according parameters with UNUSED.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_debug_flush.c: Silence warnings -Wunused-param

Decorate the unused parameters with UNUSED.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_debug.c: Silence warnings -Wunused-param

Silence warnings by decoration the parameters with UNUSED.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_format_table.py: Add UNUSED decoration to the generated function headers

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_async_debug.c: Fix -Wtype-limits warning.

Use size_t instread of unsigned for new_max. realloc later expects
size_t as parameter anyway.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/os/os_thread.h: Silence -Wunused-param.

With --disable-debug a parameter is not used. Silence this
warning by fake-using it.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_debug_refcnt.h: Fix -Wunused-param warnings

Annotate the according parameters accordingly.

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_blit.c: Fix -Wunused-param warnings

Annotate the parameters accordingly.

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
v1: Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

src/util/simple_mtx.h: Fix two -Wunused-param warnings.

Decorate the parameters accordingly with "UNUSED" or "MAYBE_UNUSED" (for
the param that is used in debug mode, but not in release mode).

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

mesa/main/texcompress_s3tc_tmp.h: Fix two -Wparam-unused warnings.

Decorate the params accordingly with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_transfer.c: Fix some -Wunused-param warnings.

Decorate the params with "UNUSED" accordingly.

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_threaded_context.c: Fix some -Wunused-param warnings.

Decorate the params accordingly with UNUSED or MAYBE_UNUSED (for params
that are used in debug mode).

v2: move *UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_surface.c: Silence a -Wsign-compare warning.

Explicitely convert one value to compare.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_pstipple.c: Fix one -Wsign-compare warning in ?: construct.

Silence the warning by making the conversion to int explicit.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_mm.c: Fix one -Wparam-unused warning.

Decorate the unused param accordingly with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_format_yuv.c: Fix a number of -Wunused-param warnings.

Decorate the params accordingly with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_format_rgtc.c: Fix a number of -Wunused-param warnings

Decorate the params accordingly with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_format_other.c: Fix various -Wunused-param warnings

Decorate the unused params with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_format_latc.c: Fix various -Wunused-param warnings, (v2)

Decorate the unused params with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_format_etc.c: Fix eight -Wunused-param warnings (v2)

Decorate the parameters accordingly with "UNUSED".

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_format.c: Fix one -Wunused-param warning

This warning was issued only in release mode. Fix it by fake-using the
parameter.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_dump_state.c: Fix two -Wunused-paramter warnings

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_dump_defines.c: Fix -Wcompare-unsigned warning

u_bit_scan may return -1 that then may be interpreted as (unsigned)-1 in
the following comparison, since num_names is unsigned. Convert the latter to
be int as well.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

gallium/aux/util/u_debug_stack.c: Silence -Wunused-result warning

asprintf is decorated with the attrbute "warn_unused_result", and if the
function call fails, the pointer "temp" will be undefined, but since it is
used later it should contain some usable value.
Test return value of asprintf and assign some save value to "temp" if
the call failed.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_debug_describe.c: Silence an -Wunused-param warning

Annotate the unused parameter.

v2: move UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

gallium/aux/util/u_blitter.c: Silence some warnings

* Annotate three parameters that are not used in release mode.
* explicitely convert an int to unsigned in an ?: construct.

v2: move MAYBE_UNUSED decoration in front of parameter declaration

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

freedreno/a5xx: stencil texturing support

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/a5xx/gmem: fix z32/s8 restore/resolve

BLIT_ZS mode is used for either combined z24/s8 or z32 in which case
BLIT_S mode is used for separate stencil.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno/a5xx/gmem: move ZS restore tiling hack

Code motion to simplify next patch.

Signed-off-by: Rob Clark <robdclark@gmail.com>

freedreno: update generated headers

svga: add missing PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER* cases

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Acked-by: Dave Airlie <airlied@redhat.com>

glsl: s/unsigned/glsl_base_type/ in glsl type code (v2)

Declare glsl_type::sampled_type as glsl_base_type as we do for the
base_type field.  And make base_type a bitfield to save a few bytes.

Update glsl_type constructor to take glsl_base_type instead of unsigned
and pass GLSL_TYPE_VOID instead of zero.

No Piglit regressions with llvmpipe.

v2:
- Declare both base_type and sampled_type as 8-bit fields
- Use the new ASSERT_BITFIELD_SIZE() macro.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

util/tgsi: use ASSERT_BITFIELD_SIZE() to check opcode field size

I've noticed at least two places where we store the TGSI opcode in
an unsigned:8 bitfield.  We're at 249 opcodes now.  If we hit 256 we'll
need to grow those bitfields.  Use the new ASSERT_BITFIELD_SIZE() macro
to detect that.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: use enum types instead of int/unsigned (v3)

Use the proper enum types for various variables.  Makes life in gdb
a little nicer.  Note that the size of enum bitfields must be one
larger so the high bit is always zero (for MSVC).

v2: also increase size of image_format bitfield, per Eric Engestrom.
v3: use the new ASSERT_BITFIELD_SIZE() macro

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

util: add new ASSERT_BITFIELD_SIZE() macro (v3)

For checking that bitfields are large enough to hold the largest
expected value.

v2: move into existing util/macros.h header where STATIC_ASSERT() lives.
v3: add MAYBE_UNUSED to variable declaration

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

st/mesa: don't move ssbo after atomic buffers if we support hw atomics

There is no need to have these overlap if we support hw atomics.

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

i965: Upload invariant state once at the start of the batch on Gen4-5.

We want to emit invariant state at the start of a render batch.  In the
past, this more or less happened: a new batch flagged BRW_NEW_CONTEXT
(because we don't have hardware contexts), which triggered the
brw_invariant_state atom.  So, it would be emitted before any 3D
drawing.  (Technically, there might be some BLT commands in the batch
because Gen4-5 have a single combined render/BLT ring, but that should
be harmless).

With the advent of BLORP, this broke.  The first item in a batch might
be a BLORP operation, which bypasses the normal draw upload path.  So,
we need to ensure invariant state happens first.  To do that, we just
upload it when creating a new batch.  On Gen6+ we'd need to worry about
whether it's a RENDER or BLT batch, but because we have a combined ring,
this approach should work fine on Gen4-5.

Seems to fix GPU hangs when playing hardware accelerated video with
mpv -hwdec=vaapi on Ironlake.

Cc: mesa-stable@lists.freedesktop.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103529
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

docs: update features/relnotes for r600 shader image support. (v2)

v2: update GLES

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

r600: enable ARB_shader_image_load_store, ARB_shader_image_size

This also enables GL4.2 for gpus with hw fp64 (cayman, cypress)

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600: handle image size support.

This adds support for the RESQ opcode with the workaround
required due to hw bugs for buffers and cube arrays.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600/sb: disable SB for images.

Until we can work further on sb, disable it for images for now.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600/shader: add support for load/store/atomic ops on images.

This adds support to the shader assembler for load/store/atomic
ops on images which are handled via the RAT operations.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600: add core pieces of image support.

This adds the atoms and gallium api implementations,
along with support for compress/decompress paths for
shader images.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600/shader: implement getting thread id.

We need the thread id to use the immediate buffer readback
mechanism, so add support for calculating it.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600/shader: add flag to denote if shader uses images

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600: implement basic memory barrier.

This isn't 100% perfect (fglrx also fails a bunch of those tests)
but implement the start of a memory barrier for image support.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600: allocate immed buffer resource for images.

In order to image readback we have to execute a MEM_RAT instruction
that needs a buffer to transfer the result into until the shader
can fetch it.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

r600: handle writes_memory properly

This implements proper handling for shaders with side effects.

Tested-By: Gert Wollny <gw.fossdev@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

autotools: change version TINY -> PATCH

Because patch is more common than tiny for talking about the 3rd element
of a version.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Emil Velikov <emli.velikov@collabora.com>

autotools: set XA versions in configure.ac and configure header file

Currently the versions are set in the header, and then sed is used to
extract them, so that autotools can use them elsewhere.

This is odd. Autotools is perfectly capable of configuring the header
with the versions, and then they don't need to be extracted from the
the header. This is cleaner and more obvious.

Tested with make distcheck.

v2: - Split tiny -> patch change
    - Drop temporary variables
    - change XA_VERSION_* -> XA_*
v3: - Finish splitting the tiny -> patch change

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Emil Velikov <emli.velikov@collabora.com>
Reviewed-by: Matt Turner <mattst88@gmail.com> (v2)

genxml: Fix PIPELINE_SELECT on G45/Ironlake.

Original 965 sets bits 28:27 to 0, while G45 and later set it to 1.

Note that the G45 docs are incorrect in this regard - see the DevCTG+
note in the Ironlake PRMs.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

egl: pass the dri2_dpy to the $plat_teardown functions

Cc: Mark Janes <mark.a.janes@intel.com>
Fixes: 40a01c9a0ef ("egl/drm: move teardown code to the platform file")
Fixes: 8d745abc009 ("egl/wayland: move teardown code to the platform file")
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Dylan Baker <dylan@pnwbakers.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103784

meson: Add dridriverdir variable to dri.pc.

Xorg (and possibly other things) depend on this variable to find the
path to DRI drivers.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Cc: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>

docs: add documentation for building with meson

v2: - Add information about CC, CXX, CFLAGS, and CXXFLAGS (Nicolai)
    - Add message at top that meson for mesa is still a work in progress
    - Add trailing "/" to directories (Eric E.)
    - Fix a number of spelling/grammar/style suggestions from Eric E.
    - Make a number of changes as suggested by Emil.
v3: - Fix order of commands in example (Eric E.)
    - Add documentation for overriding LLVM version (Eric E.)
v4: - Rebase on master
    - update default buildtype
    - add note about b_ndebug
    - Clarify meson configure a bit
v5: - use <code> for command line arguments (Eric E.)
    - Add note about listing options without a build directory
    - Minor formatting changes (Eric E.)
    - Replace the CC, CFLAGS, etc section with an environment variables
      section, which mentions CC, CXX, CFLAGS, CXXFLAGS, LDFLAGS, and
      DESTDIR
    - Add comment that not using buildtype debug might make debugging
      harder
    - Add comment that b_ndebug and buildtype are orthogonal

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch> (v3)

docs: Point to apt.llvm.org for development snapshot packages

Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

egl: fix var type

queryImage() takes an `int*`; compiler is warning about the
signed<->unsigned pointer mismatch.

Fixes: 0db36caa192b129cb4f2 "egl/wayland: Add a fallback when fourcc
       query isn't supported"
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>

i915: add missing extensions.h include

Otherwise we'll bail with due to -Werror=implicit-function-declaration.
It went unnoticed since the we had a bug which did consistently set the
compiler flag.

Fixes: ba8a347f932 ("mesa: split extensions overrides and glGetString(GL_EXTENSIONS)")
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

mesa: return 'unrecognized' extensions in glGetStringi

Analogous to the glGetString() case - report all the
extensions enabled via MESA_EXTENSION_OVERRIDE

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: rework the way we manage extra_extensions

Store pointers to the tokenized strings in the gl_extensions struct.

This way we can reuse them in glGetStringi() while we construct the
really long string only in _mesa_make_extension_string.

Only 16 pointers/strings are stored for now.

v2: Warn only once when we provide more than 16 unk. extensions, rebase

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

mesa: pass the ctx to _mesa_one_time_init_extension_overrides

Will be needed with next commit

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: call atexit() only as needed

If the extra_extensions string is empty there's no need to call
atexit() - there's nothing to free.

v2: Rebase

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)

mesa: remove unnecessary 'sort by year' for the GL extensions

The sorting was originally added to work around broken games (comment
says Quake3 demo) that were copying the extensions list into small
buffer.

Sorting does not solve the problem, since we'll still overflow and cause
corruption/crash.

Better workaround is to actually trim the string ... as done with a
later commit which introduces the MESA_EXTENSION_MAX_YEAR env. variable.

Side note: On my machine, the existing sorting makes no changes to the
extensions string.

Cc: Jose Fonseca <jfonseca@vmware.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: reuse set_extension() for _mesa_extension_override_disables

We already use it for _mesa_extension_override_enables.
Improve consistency and use it for both extension lists.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: drop unnecessary coping of extra_extensions

The function get_extension_override() returns a copy of a string,
only for it to be copied again ...

Drop the unneeded calloc/strdup/free dance.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: remove duplicate 'disabled extensions' list

While parsing MESA_EXTENSION_OVERRIDE we keep track of the disabled
extensions, twice - in _mesa_extension_override_disables and
disabled_extensions.

Upon context creation, we use the former to modify the extensions list.
Yet, we still check the updated list against disabled_extensions.

Remove disabled_extensions, it's obsolete.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: call _mesa_make_extension_string only as needed

As of previous commit we removed the extension overrides from this
function.

Thus we no longer need to call it during MakeCurrent, so we can
construct the extensions string when needed - _mesa_GetString.

This commit effectively reverts a879d14ecf8 ("mesa: initialize extension
string when context is first bound")

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: split extensions overrides and glGetString(GL_EXTENSIONS)

Currently we apply the extension overrides and construct the extensions
string upon MakeCurrent.

They are two distinct things, so let's slit the two while pushing the
overrides management _before_ _mesa_compute_version(). This ensures that
the version is updated to reflect the enabled/disabled extensions.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

i965: remove ARB_compute_shader extension override

Checking the override was useful in the early stages of developing the
extension.

Now that everything is wired, where possible, we can drop the check.
Doing so allows us to simplify some of the related code.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

i965: use _mesa_is_desktop_gl helper

Use the helper over opencoding the check.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

egl: add note about missing $plat_teardown

Some platforms are missing a proper teardown function. Add a small TODO
to make it obvious.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

egl/wayland: move teardown code to the platform file

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

egl/drm: move teardown code to the platform file

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

egl/x11: move teardown code to the platform file

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>

egl: Provide meaningfull error when built w/o requested platform

The current "No EGL platform enabled." is misleading and wrong.
We reach said code when $platform is missing.

To make this more obvious and clear provide wrappers in the header
file, making the code a bit easier to follow.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>