intel/isl: Properly set SeparateStencilBufferEnable on gen5-6

On gen5-6, SeparateStencilBufferEnable and HierarchicalDepthBufferEnable
come hand in hand and we have to set either both or neither.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965/miptree: Choose the stencil layout in miptree_create_layout

This ensures that we get the correct layout for all stencil buffers, not
just those which are created as separate stencil for a depth buffer.

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

mesa: Add a BUFFER_BITS mask for depth+stencil

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

i965/blorp: Set aux_usage to NONE for miplevels without HiZ

Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>

radeon/winsys: Limit max allocation size to 70% of VRAM

The CL CTS queries the max allocation size, and then attempts to
allocate buffers of that size. If not enough contiguous RAM/VRAM is
available, this causes errors in the radeon kernel module due to
inability to allocate the required memory.

It's a bit of a hack, but experimentally on my system, I can use ~3/4
of the card's VRAM for a single global/constant buffer allocation given
current GUI/compositor use.

For a 1GB Pitcairn (HD7850) this gets me from the reported clinfo values of:
Global memory size                              2143076352 (1.996GiB)
Max memory allocation                           1500153446 (1.397GiB)
Max constant buffer size                        1500153446 (1.397GiB)

To:
Global memory size                              2143076352 (1.996GiB)
Max memory allocation                           751619276 (716MiB)
Max constant buffer size                        751619276 (716MiB)

Fixes: OpenCL CTS test/conformance/api/min_max_mem_alloc_size,
       OpenCL CTS test/conformance/api/min_max_constant_buffer_size

Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

i965: Use a line end cap width of 0.5 unless smooth lines enabled.

This updates the Gen4-5 code to use a line end cap width of 0.5
for non-smooth lines, and 1.0 for smooth lines - which is what we
do on Gen6+.

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

i965: Use brw_get_line_width() in Gen4-5 SF_STATE code.

This unifies the Gen4-5 and Gen6+ line width calculations.

I believe it also fixes a bug - we weren't rounding the line width
to the nearest integer.  The GL 4.5 (and GL 2.1) specs "Wide Lines"
section says:

"The actual width of non-antialiased lines is determined by rounding
 the supplied width to the nearest integer, then clamping it to the
 implementation-dependent maximum non-antialiased line width."

We don't need to care about _NEW_MULTISAMPLE here because multisampling
doesn't exist on Gen4-5, so the state shouldn't change.

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

genxml: Fix Gen4-5 SF_STATE "Line Width" fixed point type.

It's a U3.1.  It became a U3.7 on Sandybridge.

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

i965: Stop using BRW_RASTRULE_LOWER_RIGHT on Gen4-5.

This effectively reverts Robert Ellison's 2009 commit
cc8afbd3862fedfe42e51c3774960d1c7078ec53.

I'm not seeing any GL spec text indicating that UPPER won't work.
On Gen6+, this bit moved to 3DSTATE_WM as a single bit, controlling
UPPER_LEFT vs. UPPER_RIGHT.  There is no way to request LOWER_RIGHT,
so UPPER_RIGHT is the best you can do.

In the G45 docs, it's marked as "Reserved" as well, but we just
decided to use it anyway.

This patch unifies the behavior between Gen4-5 and Gen6+.

Note that this is separate from point sprite texcoord behavior.

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

i965: When gl_PointSize is unwritten, default to 1.0 on Gen4-5.

Modern GL specifications say that the point size should be 1.0 when
gl_PointSize is unwritten and the last enabled stage is a geometry
or tessellation shader.  If it's a vertex shader, though, both the
GL specs and ES 3.0 spec say that it's undefined - so since Gen4-5
only support vertex shaders, there's no actual requirement to do this.

Since there is a cost associated (an extra dirty bit, which may cause
SF_STATE to be emitted more often), it may not be a good idea.

The real benefit is that it makes all generations behave identically.
And that seems somewhat nice...

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

i965: Make Gen4-5 SF_STATE use the point size calculations from Gen6+.

Apparently, Nanhai made the Gen4-5 point size calculations round to the
nearest integer in commit 8d5231a3582e4f2769ac0685cf0174e09750700e,
"according to spec".  When Eric first ported the driver to Sandybridge,
he did not implement this rounding.

In the GL 2.1 and 3.0 specs "Basic Point Rasterization" section, it does
say "If antialiasing and point sprites are disabled, the actual width is
determined by rounding the supplied width to the nearest integer, then
clamping it to the implementation-dependent maximum non-antialised point
width."

In contrast, GL 3.1 and later do not appear to contain this rounding.

It might be reasonable to round, given that we only implement GL 2.1.
Of course, if we were to do that, we should actually implement the AA
vs. non-AA distinction.  Brian added an XXX comment reminding us to fix
this 10 years ago, but it never happened.

I think a better plan is to follow the newer, unrounded behavior.  This
is what we do on Gen6+ and it passes all the relevant conformance tests.

Reviewed-by: Rafael Antognolli <rafael.antognolli@intel.com>

i965: Do an end-of-pipe sync after flushes

According to the docs, a simple CS stall is insufficient to ensure that
the memory from the flush is visible and an end-of-pipe sync is needed.

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965/blorp: Do an end-of-pipe sync around CCS ops

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Do an end-of-pipe sync prior to STATE_BASE_ADDRESS

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Add an end-of-pipe sync helper

v2 (Jason Ekstrand):
 - Take a flags parameter to control the flushes
 - Refactoring

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Unify the two emit_pipe_control functions

These two functions contain almost identical logic except for one SNB
workaround required for render target cache flushes.  They may as well
call into the same code so we only have to handle the work-arounds in
one place.

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Take a uint64_t immediate in emit_pipe_control_write

It's a 64-bit value.  Splitting it up just makes the function arguments
awkward.

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Flush around state base address

Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i965: Print "force dual color blending" in FS recompile debug output.

I forgot to add this when introducing the new key field.  It doesn't
happen often - just with the Unigine workarounds.  But we may as well
have it, so we get an accurate picture of why recompiles happen.

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>

Fix khrplatform.h not installed if EGL is disabled.

KHR/khrplatform.h is required by the EGL, GLES and VG headers, but is
only installed if Mesa3d is compiled with EGL support.

This patch installs this header file unconditionally.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77240
Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

i915: Fix wpos_tex vs. -1 comparison

wpos_tex used to be a GLuint so assigning -1 to it and
later comparing with -1 worked correctly, but commit
c349031c27b7 ("i915: Fix texcoord vs. varying collision in
fragment programs") changed wpos_tex to uint8_t and hence
broke the comparison. To fix this define a more explicit
invalid value for wpos_tex.

gcc warns us:
i915_fragprog.c:1255:57: warning: comparison is always true due to limited range of data type [-Wtype-limits]
    if (inputsRead & VARYING_BITS_TEX_ANY || p->wpos_tex != -1) {
                                                         ^

And clang says:
i915_fragprog.c:1255:57: warning: comparison of constant -1 with expression of type 'uint8_t' (aka 'unsigned char') is always true [-Wtautological-constant-out-of-range-compare]
   if (inputsRead & VARYING_BITS_TEX_ANY || p->wpos_tex != -1) {
                                            ~~~~~~~~~~~ ^  ~~

Cc: Chih-Wei Huang <cwhuang@android-x86.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Ian Romanick <ian.d.romanick@intel.com>
Cc: mesa-stable@lists.freedesktop.org
Fixes: c349031c27b7 ("i915: Fix texcoord vs. varying collision in fragment programs")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

tgsi/scan: add missing 'static' to tgsi_is_bindless_image_file()

This should fix compilation errors in some situations.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101418
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

configure.ac: Reduce zlib requirement from 1.2.8 to 1.2.3.

Testing with zlib versions 1.2.{3,4,5,6,7,8} showed no difference in
functionality, correctness, or zlib API usage and 1.2.3 is the oldest
version available in still actively deployed production Linux
distributions (RHEL/CentOS 6 and SuSE 11).

Build 17.1.1 against the system supplied zlib-devel packages for 1.2.3
in EL6 and 1.2.7 on EL7. I then swapped out the zlib version at runtime
via LD_LIBRARY_PATH with ones build from the release tarballs from
zlib.net

Testwise - I ran the piglit shader profile with --quick addded to the
tests since I figured that would exercise the shader cache, which would
in turn use zlib.

Signed-off-by: Chuck Atkins <chuck.atkins@kitware.com>
Cc: 17.1 <mesa-stable@lists.freedesktop.org>
Cc: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
[Emil Velikov: add hunk about version/piglit testing]
Acked-by: Emil Velikov <emil.velikov@collabora.com>

radeonsi: enable ARB_bindless_texture

This has only been tested on RX480.

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

radeonsi: add support for loading bindless images

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

radeonsi: add support for loading bindless samplers

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

radeonsi: invalidate buffers which are made resident if needed

When a buffer becomes resident, check if it has been invalidated,
if so update the descriptor and the dirty flag.

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

radeonsi: upload new descriptors when resident buffers are invalidated

When texture buffers are invalidated the addr in the resident
descriptor has to be updated but we can't create a new descriptor
because the resident handle has to be the same.

Instead, use the WRITE_DATA packet which allows to update memory
directly but graphics/compute have to be idle in case the GPU is
reading the descriptor.

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

radeonsi: only decompress resident textures/images when used

When the current bound shaders don't use any bindless textures
or images, it's useless to decompress the resident resources.

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

radeonsi: track use of bindless samplers/images from tgsi_shader_info

This adds some new helper functions to know if the current draw
call (or dispatch compute) is using bindless samplers/images,
based on TGSI analysis.

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

radeonsi: decompress resident textures/images before graphics/compute

Similar to the existing decompression code path except that it
loops over the list of resident textures/images.

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

radeonsi: decompress DCC for resident textures/images

Analogous to bound textures/images. We should also update the
resident descriptors and disable COMPRESSION_EN for avoiding
useless DCC fetches, but I postpone this optimization for a
separate series.

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

radeonsi: only add descriptors in presence of resident handles

This won't help much except for applications that use a ton
of resident handles. Though, this will reduce the winsys
overhead a little bit.

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

radeonsi: add all resident buffers to the current CS

Resident buffers have to be added to every new command stream.
Though, this could be slightly improved when current shaders
don't use any bindless textures/images but usually applications
tend to use bindless for almost every draw call, and the winsys
thread might help when buffers are added early.

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

radeonsi: implement ARB_bindless_texture

This implements the Gallium interface. Decompression of resident
textures/images will follow in the next patches.

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

radeonsi: add a slab allocator for bindless descriptors

For each texture/image handles, we need to allocate a new
buffer for the bindless descriptor. But when the number of
buffers added to the current CS becomes high, the overhead
in the winsys (and in the kernel) is important.

To reduce this bottleneck, the idea is to suballocate the
bindless descriptors using a slab similar to the one used
in the winsys.

Currently, a buffer can hold 1024 bindless descriptors but
this limit is arbitrary and could be changed in the future
for some reasons. Once a slab is allocated the "base" buffer
is added to a per-context list.

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

radeonsi: add si_set_shader_image_desc() helper

To share some common code between bound and bindless images.

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

radeonsi: add si_set_sampler_view_desc() helper

To share some common code between bound and bindless textures.

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

radeonsi: add si_init_descriptor_list() helper

This will be used in order to initialize resident descriptors
for bindless textures/images.

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

st/mesa: enable ARB_bindless_texture

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

st/mesa: disable per-context seamless cubemap when using texture handles

The ARB_bindless_texture spec say:

   "If ARB_seamless_cubemap (or OpenGL 4.0, which includes it) is
    supported, the per-context seamless cubemap enable is ignored
    and treated as disabled when using texture handles."

   "If AMD_seamless_cubemap_per_texture is supported, the seamless
    cube map texture parameter of the underlying texture does apply
    when texture handles are used."

The per-context seamless cubemap flag should only be enabled for
bound textures/samplers.

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

st/mesa: make bindless samplers/images bound to units resident

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

st/mesa: add infrastructure for storing bound texture/image handles

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

st/mesa: add st_create_{texture,image}_handle_from_unit() helper

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

st/mesa: add st_convert_image_from_unit() helper

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

st/mesa: make convert_sampler_from_unit() non-static

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

st/mesa: make update_single_texture() non-static

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

st/mesa: implement ARB_bindless_texture

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

tgsi/scan: record bindless samplers/images usage

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

st/glsl_to_tgsi: teach rename_temp_registers() about bindless samplers

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

st/glsl_to_tgsi: teach the DCE pass about bindless samplers/images

When a texture (or an image) instruction uses a bindless sampler
(respectively a bindless image), make sure the DCE pass won't
remove code when the resource is a temporary variable.

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

st/glsl_to_tgsi: add support for bindless pack/unpack operations

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

st/glsl_to_tgsi: add support for bindless images

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

st/glsl_to_tgsi: add support for bindless samplers

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

tgsi/ureg: accept TGSI_FILE_{CONSTANT,INPUT} for dst registers

For example, TGSI_OPCODE_STORE for bindless images might use
a constant buffer or a shader input.

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

tc: add ARB_bindless_texture support

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

trace: add ARB_bindless_texture support

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

ddebug: add ARB_bindless_texture support

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

gallium: add ARB_bindless_texture interface

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

gallium: add PIPE_CAP_BINDLESS_TEXTURE

Whether bindless texture operations are supported by the
underlying driver.

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

mesa: fix setting uniform variables for bindless samplers/images

This fixes a 64-bit vs 32-bit mismatch when setting an array
of bindless samplers. Also, we need to unconditionally set
size_mul to 2 when the underlying uniform is bindless.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: handle bindless uniforms bound to texture/image units

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: associate uniform storage to bindless samplers/images

When a bindless sampler/image is bound to a texture/image unit,
we have to overwrite the constant value by the resident handle
directly in the constant buffer before the next draw.

One solution is to keep track of a pointer to the data.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: pass gl_program to _mesa_associate_uniform_storage()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: update textures for bindless samplers bound to texture units

This is analogous to the existing SamplerUnits and SamplerTargets,
but it loops over bindless samplers bound to texture units.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: add update_single_program_texture_state() helper

This will also be used for looping over bindless samplers bound
to texture units.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: add update_single_shader_texture_used() helper

This will also be used for looping over bindless samplers bound
to texture units.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

glsl: add ir_variable::contains_bindless()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

glsl: set the explicit binding value for bindless samplers/images

This handles a situation like:

layout (bindless_sampler, binding = 7) uniform sampler2D;

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

glsl: pass the ir_variable object to set_opaque_binding()

In order to set the explicit binding value for bindless
samplers/images.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

glsl: process uniform images declared bindless

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

glsl: process uniform samplers declared bindless

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: add infrastructure for bindless samplers/images bound to units

Yes, ARB_bindless_texture allows to do this. In other words, in
a situation like:

layout (bindless_sampler) uniform sampler2D tex;

The 'tex' sampler uniform can be either set with glUniform1()
(old-style bound samplers) or with glUniformHandleui() (resident
handles).

When glUniform1() is used, we have to somehow make the texture
resident "under the hood". This is done by requesting a texture
handle to the driver, making the handle resident in the current
context and overwriting the value directly in the constant buffer.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: store bindless samplers as PROGRAM_UNIFORM

Old-style samplers (ie. bound samplers) are stored as
PROGRAM_SAMPLER, while bindless ones are PROGRAM_UNIFORM.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: keep track of the current variable in add_uniform_to_shader

Bindless samplers are considered PROGRAM_UNIFORM but
add_uniform_to_shader::visit_field() is based on glsl_type.

Because only ir_variable knows if the uniform variable is
bindless via ir_variable::bindless, store it instead of
adding a new parameter to visit_field().

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: refuse to change tex buffers when a handle is allocated

The ARB_bindless_texture spec says:

   "The error INVALID_OPERATION is generated by BufferData if it is
    called to modify a buffer object bound to a buffer texture while
    that texture object is referenced by one or more texture handles."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: refuse to change textures when a handle is allocated

The ARB_bindless_texture spec says:

   "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
    CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
    functions defined in terms of these, if the texture object to be
    modified is referenced by one or more texture or image handles."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: refuse to update tex parameters when a handle is allocated

The ARB_bindless_texture spec says:

   "The ARB_bindless_texture spec says: "The error INVALID_OPERATION
    is generated by TexImage*, CopyTexImage*, CompressedTexImage*,
    TexBuffer*, TexParameter*, as well as other functions defined in
    terms of these, if the texture object to be modified is referenced
    by one or more texture or image handles."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: refuse to update sampler parameters when a handle is allocated

The ARB_bindless_texture spec says:

   "The error INVALID_OPERATION is generated by SamplerParameter* if
    <sampler> identifies a sampler object referenced by one or more
    texture handles."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: add support for glUniformHandleui64*ARB()

Bindless sampler/image handles are represented using 64-bit
unsigned integers.

The ARB_bindless_texture spec says:

   "The error INVALID_OPERATION is generated by UniformHandleui64{v}ARB
   if the sampler or image uniform being updated has the "bound_sampler"
   or "bound_image" layout qualifier"."

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: add support for unsigned 64-bit vertex attributes

This adds support in the VBO and array code to handle unsigned
64-bit vertex attributes as specified by ARB_bindless_texture.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: implement ARB_bindless_texture

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa/util: add a hash table wrapper which support 64-bit keys

Needed for bindless handles which are represented using
64-bit unsigned integers. All hash table implementations should
be uniformized later on.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mesa: move some hash declarations to hash.h

These will be used by the bindless hash tables to initialize
the default deleted key value.

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

mesa/util: add new util_dynarray_delete_unordered helper

This helper function will be used for managing dynamic arrays of
resident texture/image handles.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

mapi: add GL_ARB_bindless_texture entry points

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

clover/device: Get device/host unified memory from pipe driver

clinfo no longer reports my discrete GCN card as unified memory

Signed-off-by: Aaron Watry <awatry@gmail.com>
Reviewed-by: Francisco Jerez <currojerez@riseup.net>

gallium/radeon: Include the family name in the renderer string if it's not equal to the marketing name.

The "family" name is often more informative than the "marketing" name. More
importantly, applications, like for example Wine, may recognise GPUs based on
the existing "family" names.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Henri Verbeet <hverbeet@gmail.com>

gallium/docs: clarify TGSI_SEMANTIC_SAMPLEMASK, again

I've since discovered the fragment shader sample mask system value (which
corresponds to gl_SampleMaskIn).

v2: It's a system value, not a shader input.

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

st/mesa: unmap the stream_uploader buffer before drawing

Some drivers require that the vertex buffers be unmapped prior to
drawing.  This change unmaps the stream_uploader buffer after we've
uploaded the zero-stride attributes (unless the driver supports
rendering with mapped buffers).

This fixes a regression in the VMware driver since 17f776c27be266f2.
Some Mesa demos such as mandelbrot and brick would display black
quads instead of the expected rendering.

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

gallium/util: whitespace, formatting fixes in u_upload_mgr.c

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

egl: improve dri2_fallback_swap_buffers_with_damage()

Let's (try to) set damages before swapping buffers.

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>

softpipe: Match pipe_context::render_condition prototype.

To silence compiler warnings.  Trivial.

llvmpipe: Match pipe_context::render_condition prototype.

To silence compiler warnings.  Trivial.

st_glsl_to_tgsi: init index to 0 before get_deref_offsets()

Fixes: 8ec4975cd83 ("st_glsl_to_tgsi: don't try and pass 32-bit values to get_deref_offsets")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101401
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>

glsl: simplify an assertion in lower_ubo_reference

Struct types are now equal when they're structurally equal.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

glsl: simplify validate_intrastage_arrays

Struct types are now equal when they are structurally equal.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

glsl: simplify varying matching

Unnamed struct types are now equal if they have the same field.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

glsl: remove redundant record_compare check when linking globals

Unnamed struct types are now equal across stages based on the fields they
contain, so overriding the type to make sure names match has become
unnecessary.

The check was originally introduced in commit 955c93dc089f ("glsl: Match
unnamed record types across stages.")

v2: clarify the commit message

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

glsl: stop considering unnamed and named structures equal

Previously, if an unnamed and a named struct contained the same fields,
they were considered the same type during linking of globals.

The discussion around commit e018ea81bf58 ("glsl: Structures must have
same name to be considered same type.") doesn't seem to have considered
this thoroughly, and I see no evidence that an unnamed struct should
ever be considered to be the same type as a named struct.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>