V2: Works on Ivy Bridge now too, so this can be 6+.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
On Gen6, lower this to `ld` with lod=0 and an extra sample_index
parameter.
On Gen7, use `ld2dms`. We don't support CMS yet for multisample
textures, so we just hardcode MCS=0. This is ignored for IMS and UMS
surfaces.
Note: If we do end up emitting specialized shaders based on the MSAA
layout, we can emit a slightly shorter message here in the UMS case.
Note: According to the PRM, `ld2dms` takes one more parameter, lod.
However, it's always zero, and including it would make the message too
long for SIMD16, so we just omit it.
V2: Reworked completely, added support for Gen7.
V3: - Introduce sample_index parameter rather than reusing lod
- Removed spurious whitespace change
- Clarify commit message
V4: - Fix comment style
- Emit SHADER_OPCODE_TXF_MS on Gen6. This was benignly wrong since
it lowers to `ld` anyway on this gen, but still wrong.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
On Gen6, lower this to `ld` with lod=0 and an extra sample_index
parameter.
On Gen7, use `ld2dms`. This takes an additional MCS parameter to support
compressed multisample surfaces, but we're not enabling them for
multisample textures for now, so it's always ignored and can be safely
omitted.
V2: Reworked completely, added support for Gen7.
V3: - Use new sample_index, sample_index_type rather than reusing lod
- Clarify commit message.
V4: - Fix comment style
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
i965: add a new virtual opcode: SHADER_OPCODE_TXF_MS
This is very similar to the TXF opcode, but lowers to `ld2dms` rather
than `ld` on Gen7.
V4: - add SHADER_OPCODE_TXF_MS to is_tex() functions, so regalloc thinks
it actually writes the correct number of registers. Otherwise in
nontrivial shaders some of the registers tend to get clobbered,
producing bad results.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
i965: take the target into account for Gen7 MSAA modes
Gen7 has an erratum affecting the ld_mcs message, making it unsafe to
use when the surface doesn't have an associated MCS.
From the Ivy Bridge PRM, Vol4 Part1 p77 ("MCS Enable"):
"If this field is disabled and the sampling engine <ld_mcs>
message is issued on this surface, the MCS surface may be
accessed. Software must ensure that the surface is defined
to avoid GTT errors."
To allow the shader to treat all surfaces uniformly, force UMS if the
surface is to be used as a multisample texture, even if CMS would have
been possible.
V3: - Quoted erratum text
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
i965: Support multisampling in surface_state for textures
The surface_state setup for renderbuffers already worked; only the
texturing side needed work. BLORP does something similar, but does its
own surface_state setup.
On Gen6, we just need to set the correct sample count.
On Gen7: - set the correct sample count
- set the correct layout mode
- set GEN7_SURFACE_ARYSPC_LOD0 if it's set in the miptree.
V2: - Clarify commit message
- Rebased onto Paul's physical/logical dims cleanup
- Added Gen7 support
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
V2: - Fix for state moving from texobj to image
- Rebased onto Paul's logical/physical cleanup
- Fixed missing quantization of sample count
- Fold in IMS renderbuffer wrapper fixes from later in the series
- Use correct physical slice offset for UMS/CMS surfaces on Gen7
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
V2: - fix formatting issues
- generate GL_OUT_OF_MEMORY if teximage cannot be allocated
- fix for state moving from texobj to image
V3: - remove ridiculous stencil hack
- alter format check to not allow a base format of STENCIL_INDEX
- allow width/height/depth to be zero, to deallocate the texture
- dont forget to call _mesa_update_fbo_texture
V4: - fix indentation
- don't throw errors on proxy texture targets
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
mesa: support multisample textures in framebuffer completeness check
- sample count must be the same on all attachments
- fixedsamplepositions must be the same on all attachments
(renderbuffers have fixedsamplepositions=true implicitly; only
multisample textures can choose to have it false)
V2: - fix wrapping to 80 columns, debug message, fix for state moving
from texobj to image.
- stencil texturing tweaks tidied up and folded in here.
V3: - Removed silly stencil hacks entirely; the extension doesn't
actually make stencil-only textures legal at all.
- Moved sample count / fixed sample locations checks into
existing attachment-type-specific blocks, as suggested by Eric
V4: - Removed stencil hacks which were missed in V3 (thanks Eric)
- Don't move the declaration of texImg; only required pre-V3.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
[V2] Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Moves the definition of the sample positions out of
gen6_emit_3dstate_multisample, and unpacks them in
gen6_get_sample_position.
V2: Be consistent about `sample position` rather than `location`.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
V2: - fix multiline comment style
- stop using ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH since that
doesn't exist anymore.
V3: - check for the extension being enabled
- tidier flagging of _NEW_MULTISAMPLE
- fix weird indentation in get.c
V4: - move flush later in SampleMaski()
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Actual sample locations deferred to a driverfunc since only the driver
really knows where they will be.
V2: - pass the draw buffer to the driverfunc; don't fallback to pixel
center if driverfunc is missing.
- rename GetSampleLocation to GetSamplePosition
- invert y sample position for winsys FBOs, at Paul's suggestion
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
V2: For now, only expose a depth sample count of 1, since there are
possible unresolved interactions with HiZ.
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
- GL_MAX_COLOR_TEXTURE_SAMPLES
- GL_MAX_DEPTH_TEXTURE_SAMPLES
- GL_MAX_INTEGER_SAMPLES
V2: initialize limits to 1 in _mesa_init_constants as suggested by Brian
and Paul
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
V2: - emit `sample` parameter properly for multisample texelFetch()
- fix spurious whitespace change
- introduce a new opcode ir_txf_ms rather than overloading the
existing ir_txf further. This makes doing the right thing in
the driver somewhat simpler.
V3: - fix weird whitespace
V4: - don't forget to include the new opcode in tex_opcode_strs[]
(thanks Kenneth for spotting this)
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
[V2] Reviewed-by: Eric Anholt <eric@anholt.net>
[V2] Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
mesa: add texobj support for ARB_texture_multisample
Adds the new texture targets, and per-image state for GL_TEXTURE_SAMPLES
and GL_TEXTURE_FIXED_SAMPLE_LOCATIONS.
V2: - Allow multisample texture targets in glInvalidateTexSubImage too.
This was already partly there, but I missed it the first time around
since the interaction is defined in a newer extension. Fixed weird
indentation.
- Allow multisample array textures in glFramebufferTextureLayer.
This was overlooked as the tests originally only used 2d
multisample textures.
V3: - Set min/mag filters sensibly for multisample textures. This
can't actually be changed by the user, so it's more sensible to
initialize it correctly than to hack around it being bogus later.
V4: - Tidy up initial min/mag filter setup. Setup in
_mesa_initialize_texture_object was bogus, but benign since
finish_texture_init() clobbered everything with correct values. For V4,
just do the setup in finish_texture_init().
V5: - Don't break glPopAttrib(GL_TEXTURE_BIT)
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
[V2] Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Adds new enums, dispatch machinery, and stubs for the 4 new entrypoints.
V2: - Drop placeholder
- Align enum values
- Remove explicit exec=mesa; it *is* the dispatch flavor we want,
but it's also the default. I misunderstood how this worked before;
after actually reading the generator it makes good sense.
V3: - Squash in stubs for new entrypoints, and dispatch_sanity tweaks,
so we don't get build breakage between those patches.
V4: - Fix various remaining whitespace issues
Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
[1/3 V2] Reviewed-by: Matt Turner <mattst88@gmail.com>
[V3] Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
The GLX extension lets you expose visuals that explicitly guarantee you
that the GL_FRAMEBUFFER_SRGB_CAPABLE flag will be set, but we can set
the flag even while the visual doesn't provide the guarantee. This
appears to be consistent with other implementations, as we've seen
several apps now that don't require an srgb visual and assume sRGB will
work without checking the GL_FRAMEBUFFER_SRGB_CAPABLE flag.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=55783
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=60633
Reviewed-and-tested-by: Ian Romanick <ian.d.romanick@intel.com>
intel: Fix software copying of miptree faces for weird formats.
Now that we have W-tiled S8, we can't just region_map and poke at bits --
there has to be some swizzling. Rely on intel_miptree_map to get that job
done. This should also get the highest performance path we know of for the
mapping (interesting if I get around to finishing movntdqa some day).
v2: Fix stale name of the bit in a comment.
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
intel: Add a flag for miptree mapping to disable transcoding.
I want to reuse intel_miptree_map() to replace some region mapping that's
broken for separate stencil, but doing so would result in new demands on
ETC transcode that we actually don't want to happen.
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
r600g: always map uninitialized buffer range as unsynchronized
Any driver can implement this simple and efficient optimization.
Team Fortress 2 hits it always. The DISCARD_RANGE codepath is not even used
with TF2 anymore, so we avoid a ton of useless buffer copies.
Tested-by: Andreas Boll <andreas.boll.dev@gmail.com>
NOTE: This is a candidate for the 9.1 branch.
gallium/util: add helper code for 1D integer range
Reviewed-by: Brian Paul <brianp@vmware.com>
v2: cosmetic changes based on Brian's review
Tested-by: Andreas Boll <andreas.boll.dev@gmail.com>
NOTE: This is a candidate for the 9.1 branch. (the next patch depends on it)
The states were split because we thought it caused a hardlock. Now we know
the hardlock was caused by something else and has since been fixed.
Tested-by: Andreas Boll <andreas.boll.dev@gmail.com>
This doesn't fix any issue we know of, but there indeed is a week spot
in draw_vbo where streamout can fail. After streamout is enabled,
the need_cs_space call can flush the context, which causes the streamout
to be disabled right after it was enabled and bad things happen.
One way to fix it is to atomize the beginning part, so that no context flush
can happen between streamout enabling and the first drawing.
Tested-by: Andreas Boll <andreas.boll.dev@gmail.com>
intel: Enable __DRI_API_OPENGL_CORE api with dri2 contexts
Without this set, dri_util.c:dri2CreateContextAttribs
will reject requests to create a context with
__DRI_API_OPENGL_CORE.
This prevents a 3.2 core profile context from being created
even when MESA_GL_OVERRIDE_VERSION=3.2 is used.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
intel: update max versions based on MESA_GL_VERSION_OVERRIDE
If the override is version is >= 3.1, then update the
max_gl_core_version. Otherwise, update max_gl_compat_version.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This will allow other code to get access to the override
version before a context is available.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
glsl: allow GLSL compiler version to be overridden to 1.50
Although GLSL 1.50 compiler support is not available,
this change will allow MESA_GLSL_VERSION_OVERRIDE=150 to be
used while 1.50 support is being developed.
Since no drivers claim 1.50 GLSL support, this change should
only impact Mesa when MESA_GLSL_VERSION_OVERRIDE=150 is set.
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Immediate operands can only be src2 in 2-source instructions. Fixes
piglit failures since 0a1d145e (oops!).
Spotted-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The field was equivalent to (etc_format != MESA_FORMAT_NONE), and
therefore duplicate information.
This patch removes field and replaces all references to it with
`etc_format != MESA_FORMAT_NONE`.
No Piglit ETC test regresses on Intel Sandybridge.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
i965/fs: Use the LRP instruction for ir_triop_lrp when possible.
v2 [mattst88]:
- Add BRW_OPCODE_LRP to list of CSE-able expressions.
- Fix op_var[] array size.
- Rename arguments to emit_lrp to (x, y, a) to clear confusion.
- Add LRP function to brw_fs.cpp/.h.
- Corrected comment about LRP instruction arguments in emit_lrp.
v3 [mattst88]:
- Duplicate MAD code for LRP instead of using a function pointer.
- Check for != GRF instead of == IMM in emit_lrp.
- Lower LRP on gen < 6.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
1
i965: Add support for emitting the LRP instruction.
Like MAD, this is another three-source instruction.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
glsl: Convert mix() to use a new ir_triop_lrp opcode.
Many GPUs have an instruction to do linear interpolation which is more
efficient than simply performing the algebra necessary (two multiplies,
an add, and a subtract).
Pattern matching or peepholing this is more desirable, but can be
tricky. By using an opcode, we can at least make shaders which use the
mix() built-in get the more efficient behavior.
Currently, all consumers lower ir_triop_lrp. Subsequent patches will
actually generate different code.
v2 [mattst88]:
- Add LRP_TO_ARITH flag to ir_to_mesa.cpp. Will be removed in a
subsequent patch and ir_triop_lrp translated directly.
v3 [mattst88]:
- Move changes from the next patch to opt_algebraic.cpp to accept
3-src operations.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
glsl: Consolidate ir_expression constructors that use explicit types.
Previously, we had separate constructors for one, two, and four operand
expressions. This patch consolidates them into a single constructor
which uses NULL default parameters.
The unary and binary operator constructors had assertions to verify that
the caller supplied the correct number of operands for the expression,
but the four-operand version did not. Since get_num_operands for
ir_quadop_vector returns the number of vector_elements, we can safely
add that without breaking the semantics of ir_quadop_vector.
This also paves the way for expressions with three operands. Currently,
none can be constructed since get_num_operands() never returns 3.
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
i965/vs/gen7: Allow MATH instructions to have MRF as a destination
total instructions in shared programs: 346873 -> 346847 (-0.01%)
instructions in affected programs: 364 -> 338 (-7.14%)
(All affected shaders are from Lightsmark)
Reviewed-by: Eric Anholt <eric@anholt.net>
Chris Forbes