radeonsi: flush CB after MSAA only when transitioning from CB to textures

The main flush before texturing is done after the FMASK decompress pass.

CB after MSAA rendering is not flushed in set_framebuffer_state and also
not in memory_barrier if the current color buffer is MSAA. We fully rely
on the FMASK decompress pass for the flushing.

Some CB decompress and resolve passes need an explicit flush before and
after.

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

radeonsi: unify CB_RESOLVE blitter invocation code

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

radeonsi: flush DB caches only when transitioning from DB to texturing

Use the mechanism of si_decompress_textures, but instead of doing
the actual decompression, just flag the DB cache flush there.

This removes a lot of unnecessary DB cache flushes.

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

radeonsi: add separate HUD counters for CB and DB cache flushes

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

st/mesa: don't set the border color if it's unused

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

st/mesa: don't set 16 scissors and 16 viewports if they're unused

Only do so if there is a shader writing gl_ViewportIndex.
This removes a lot of CPU overhead for the most common case.

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

st/mesa: fix pipe_rasterizer_state::scissor with multiple viewports

Cc: 17.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: simplify st_update_viewport

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

st/mesa: remove redundant sample_mask checking

cso does that too

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

st/mesa: use precomputed st_fb_orientation

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

mesa: don't call _mesa_update_clip_plane in the GL core profile

It uses the projection matrix to transform the clip plane.

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

st/mesa: set st_context::...num_samplers to 0 when there are no samplers

This was missed during my st/mesa series.

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

st/mesa: unify fail paths for update_single_texture

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

st/mesa: don't call u_sampler_view_default_template for sampler views

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

st/mesa: always set sampler swizzle according to the texture base format

Mainly don't (indirectly) call util_format_description here.

If the driver supports texture swizzling, this will always do the right
thing. If the driver doesn't support it, it doesn't matter.

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

st/mesa: samplers only need to track whether GLSL >= 130

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

st/mesa: simplify get_texture_format_swizzle

- Don't check GL_NONE (that was only for buffers).
- Don't use util_format_is_depth_or_stencil.

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

st/mesa: add an entirely separate codepath for setting up buffer views

Remove handling of buffers from all texture paths.
This simplifies things for both buffers and textures.

get_sampler_view_format is also cleaned up not to call
util_format_is_depth_and_stencil.

v2: also update st_NewTextureHandle

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> (v1)

st/mesa: don't return an error from update_single_texture

It can just return a NULL sampler view, which is better than not doing
anything at all.

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

st/mesa: clean up trivial dereferences in update_textures

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

st/mesa: don't check MaxTextureImageUnits in update_textures

The linker takes care of it.

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

st/mesa: don't call st_shader_stage_to_ptarget in update_textures

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

cso: inline a few frequently-used functions

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

cso: don't return errors from sampler functions

No code checks the errors.

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

cso: don't track the number of sampler states bound

This removes 2 loops from hot codepaths and adds 1 loop to a rare codepath
(restore_sampler_states), and makes sanitize_hash() slightly worse.

Sampler states, when bound, are not unbound for draw calls that don't need
them. That's OK, because bound sampler states don't add any overhead.

This results in lower CPU overhead in most cases.

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

st/mesa: sink and simplify texBaseFormat getting for sampler states

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: don't set sampler states for TBOs

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

st/mesa: optimize sampler state translation code

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: sink code needed for apply_texture_swizzle_to_border_color

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: simplify update_shader_samplers

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: when binding sampler states, don't check the max sampler limit

The GLSL linker takes care of it.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: don't unbind sampler states if none are used

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

st/mesa: unify update_gp/tcp/tep code

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: don't search through shader variants if there is only one

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: don't track shader variants in st_context

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: move blend color into its own state atom

This is now sensible thanks to the NewBlendColor flag.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: check correctly if multisampling is enabled

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

st/mesa: don't invoke st_finalize_texture & st_convert_sampler for TBOs

This is a v2 of the previous patch (v1 didn't skip st_finalize_texture).

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

mesa: simplify _mesa_is_image_unit_valid for buffers

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_PROGRAM_CONSTANTS for GLSL programs for st/mesa

v2: also update _mesa_uniform_handle for bindless textures

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> (v1)
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com> (v1)
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>

glsl: Track whether uniforms are active per stage

for finer granularity state flagging

v2: Marek - use a bitmask, add shader cache support

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_PROGRAM_CONSTANTS for non-GLSL programs for st/mesa

This has the benefit that we get to set up constants for exactly
the shader stage that needs it.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: flush vertices before updating ctx->_Shader

Cc: 17.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: set driver flags for glPopAttrib(GL_ENABLE_BIT) properly

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_POLYGON_STIPPLE for st/mesa

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_LINE for st/mesa

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_POLYGON for st/mesa

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_TRANSFORM for st/mesa if possible

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_TRANSFORM for Transform.RasterPositionUnclipped

It's not a driver state, it's for glRasterPos.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_TRANSFORM for primitive restart

It's a draw state.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_VIEWPORT for st/mesa if possible

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: flush vertices before changing viewports

Cc: 17.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_MULTISAMPLE for st/mesa

There are several new driver flags here so that it maps nicely to gallium.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_COLOR for st/mesa if possible

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: use DriverFlags.NewAlphaTest to communicate alphatest changes to st/mesa

Now AlphaFunc avoids the blend state update in st/mesa and avoids
_mesa_update_state_locked.

The GL_ALPHA_TEST enable won't trigger blend state updates in st/mesa
after st/mesa stops relying on _NEW_COLOR.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_DEPTH for st/mesa

skipping _mesa_update_state_locked

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: make _mesa_set_varying_vp_inputs a no-op in GL core profile

just don't set _NEW_VARYING_VP_INPUTS.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: remove _NEW_BUFFER_OBJECT

not used

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't flag _NEW_SCISSOR for st/mesa

Not needed and we get to bypass _mesa_update_state_locked that would be
a no-op.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't execute most of _mesa_update_state_locked for GL core profile

There is plenty of legacy stuff here.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: simplify handling the return value of update_program

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: simplify a loop in _mesa_update_texture_state

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: replace VP/FP/ATIfs _Enabled flags with helper functions

These are only used in the GL compatibility profile.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: don't update draw buffer bounds in _mesa_update_state

st/mesa doesn't need the draw bounds for draw calls. I've added the call
where it's necessary in core Mesa and drivers, but I suspect that most
drivers can just move the call to the right places.

The core Mesa places aren't hot paths, so the call overhead doesn't matter
there.

For now, only st/mesa is made such that this function is invoked very
rarely.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: remove update_framebuffer_size

For the default framebuffer, _mesa_resize_framebuffer updates it.
For FBOs, _mesa_test_framebuffer_completeness updates it.

This code is redundant.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

mesa: replace ctx->Polygon._FrontBit with a helper function

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: replace ctx->VertexProgram._TwoSideEnabled with a helper function

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: stop using _NEW_STENCIL with st/mesa, use DriverFlags.NewStencil instead

This bypasses _mesa_update_state_locked.

Before:
   DrawElements ( 1 VBOs, 4 UBOs,  8 Tex) w/ stencil enable change:    3.99 million
   DrawArrays   ( 1 VBOs, 4 UBOs,  8 Tex) w/ stencil enable change:    4.56 million

After:
   DrawElements ( 1 VBOs, 4 UBOs,  8 Tex) w/ stencil enable change:    4.93 million
   DrawArrays   ( 1 VBOs, 4 UBOs,  8 Tex) w/ stencil enable change:    5.84 million

It's quite a difference in the draw call rate when ctx->NewState stays
equal to 0 the whole time.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: replace _mesa_update_stencil() with helper functions

The idea is to remove the dependency on _mesa_update_state_locked,
so that st/mesa can skip it for stencil state updates, and then stop
setting _NEW_STENCIL in mesa/main if the driver is st/mesa.

The main motivation is to stop invoking _mesa_update_state_locked for
certain state groups.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

meta: do the full FBO completeness check in decompress_texture_image

_mesa_update_state will no longer recompute Width/Height if the framebuffer
is complete. We now rely on the FBO completeness check to do it.

The only code that needs to be fixed seems to be this one.

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

i965/gen6: Use isl-based miptree also for stencil rbs

Fixes dEQP-EGL.functional.image.render_multiple_contexts.
gles2_renderbuffer_stencil_stencil_buffer

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

i965: Remove spurious mutex frobbing around call to intel_miptree_blit

These locks were added in 2f28a0dc, but I don't see anything in the
intel_miptree_blit path that should make this necessary.

When asked, Kristian says:

    I doubt it's needed now with the new blorp. If I remember correctly,
    I had to drop the lock there since intel_miptree_blit() could hit
    the XY blit path that requires a fast clear resolve. The fast
    resolve being meta, would then try to lock the texture again.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>

egl: turn one more boolean `int` into a `bool`

Same as the previous commit, but this one was split out because it's
a bit more complicated: this field is given as a pointer to a function,
so the function had to be changed as well, and the function was use in
a bunch of places, which needed updating as well.

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

egl: turn boolean `int`s into `bool`s

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

i965/miptree: Move isl_surf_get_(hiz|mcs)_surf out of the assert

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101535
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101538
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101539
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>

intel/genxml: Use the same naming convention for Floating Point Mode.

In newer gens, this field has a prefix and the non-IEEEE-745 mode is called
"Alternate", instead of simply "Alt".

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Normalize URB Data field in WM_STATE.

On gen6+, this is called "Dispatch GRF Start Register For Constant/Setup Data
0", while on gen5 and lower it's called only "Dispatch GRF Start Register For
URB Data", but it's essentially the same thing (URB data), so rename it to
match newer gens and simplify the C code that handles it.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Rename field on WM_STATE to match gen6+.

"Pixel Shader Kill Pixel" -> "Pixel Shader Kills Pixel", which is how it's
called on newer gens.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Normalize fields on WM_STATE.

On gen4, WM_STATE only has one Kernel Start Pointer and one GRF Register
Count, but we can make the code that handles this on multiple gens simpler if
we add an index 0 to it too.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Add missing field to CLIP_STATE.

Just because it's not set doesn't mean that it doesn't exist. And since the
field is there on newer gens, having it on gen5 simplifies the code when
porting gen5 and lower.

Also add missing value to API Mode on CLIP_STATE on gen4.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Fix type of UserClipFlags ClipTest Enable Bitmask.

This is a bitmask, so it can't be a boolean. Also rename it so it matches
gen6+.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Add missing fields to CLIP_STATE on gen4-5.

These fields are set by brw_clip_unit, so we need them when converting to
genxml.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

intel/genxml: Normalize GS_STATE.

Rename "Rendering Enable" to "Rendering Enabled", so it matches gen6+.

Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

i915: Always emit W on gen3

Unlike the older gen2 hardware, gen3 performs perspective
correct interpolation even for the primary/secondary colors.
To do that it naturally needs us to emit W for the vertices.

Currently we emit W only when at least one texture coordinate
set gets emitted. This means the interpolation of color will
change depending on whether texcoords/varyings are used or not.
That's probably not what anyone would expect, so let's just
always emit W to get consistent behaviour. Trying to avoid
emitting W seems like more hassle than it's worth, especially
as bspec seems to suggest that the hardware will perform the
perspective division anyway.

This used to be broken until it was accidentally fixed it in
commit c349031c27b7 ("i915: Fix texcoord vs. varying collision
in fragment programs") by introducing a bug that made the driver
always emit W. After fixing that bug in commit c1eedb43f32f
("i915: Fix wpos_tex vs. -1 comparison") we went back to the
old behaviour and caused an apparent regression.

Fixes: c1eedb43f32f ("i915: Fix wpos_tex vs. -1 comparison")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101451
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

mesa: add KHR_no_error support for glStencilOp()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add stencil_op() helper

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add KHR_no_error support for glStencilFunc()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add stencil_func() helper

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add KHR_no_error support for glStencilOpSeparate()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add stencil_op_separate() helper

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add KHR_no_error support for glStencilMaskSeparate()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add stencil_mask_separate() helper

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add KHR_no_error support for glStencilFuncSeparate()

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

mesa: add stencil_func_separate() helper

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

etnaviv: fix blend color for RB swapped rendertargets

Same as with the colormasks, the blend color needs to be swizzled according
to the rendertarget format.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Wladimir J. van der Laan <laanwj@gmail.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>

spirv: Work around the Doom shader bug

Doom shipped with a broken version of GLSLang which handles samplers as
function arguments in a way that isn't spec-compliant.  In particular,
it creates a temporary local sampler variable and copies the sampler
into it.  While Dave has had a hack patch out for a while that gets it
working, we've never landed it because we've been hoping that a game
update would come out with fixed shaders.  Unfortunately, no game update
appears on to be on the horizon and I've found this issue in yet another
application so I think we're stuck working around it.  Hopefully, we can
delete this code one day.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99467
Cc: "17.1" <mesa-stable@lists.freedesktop.org>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>

glsl: Update build instructions for int64.glsl

Trivial

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

glsl: Fix indent in dump code

Signed-off-by: Elie Tournier <elie.tournier@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

st/xvmc: deal with drivers wanting different texture formats

Previously, texture formats were being used unconditionally without
checking. However nv30 supports neither RGBX8 nor R4A4/A4R4 formats. Add
sufficient fallbacks so that the nv30 driver can have working OSD.

Tested on a NV44A/PCI.

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

nvc0: fix transfer of larger rectangles with DmaCopy on gk104 and up

By treating the rectangles as 1cpp, we can run up against some internal
copy engine limits and trigger a MEM2MEM_RECT_OUT_OF_BOUNDS error check
at launch time.

This commit enables the REMAP hardware, which allows us to specify both
the component size and number of components for a transfer.  We're then
able to pass in the real width/nblocksx values and not hit the limits.

There's a couple of "supported" CPPs in the list that we can't actually
hit, but are there simply because they're possible.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Ilia Mirkin <imirkin@alum.mit.edu>