The behavior of flushes in the hardware is a maze of twisty passages,
and strangely the VS constants appear to be loaded during a pipeline
flush instead of at the time of the packet emit according to the
simulator. On moving the STATE_BASE_ADDRESS packet to where it really
needed to live (in order for data loads by other packets to be
correct), we sometimes no longer got a flush between those packets
where we apparently needed it. This replicates the flushes implied by
a STATE_BASE_ADDRESS update, fixing the GPU hangs in OGLC and the
"engine" demo.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=36821
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39257
Tested-by: Keith Packard <keithp@keithp.com> (bzflag and etracer fixed)
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 3e5d36267d)
There's scary stuff going on in PIPE_CONTROL internals, and if the
BSpec says to do this to make PIPE_CONTROL work, I'll go ahead and do
it because we'll probably never be able to debug it after the fact.
v2: Use stall at scoreboard instead of depth stall, as noted by Ken.
(cherry picked from commit 407785d0e9)
For this and occlusion queries, we're trying to avoid setting
I915_GEM_DOMAIN_RENDER for the write domain, because the data written
is definitely not going through the render cache, but we do need to
tell the kernel that the object has been written. However, with using
I915_GEM_DOMAIN_GTT, the kernel on retiring the batchbuffer sees that
the w/a BO has a write domain of GTT, and puts it on the flushing
list. If something tries to wait for that BO to finish rendering
(such as the AUB dumper reading the contents of BOs), we get into
wait_request (since obj->active) but with a 0 seqno (since the object
is on the flushing list, not actually on a ringbuffer), and BUG_ONs.
To avoid the kernel bug (which I'm hoping to delete soon anyway), just
use I915_GEM_DOMAIN_INSTRUCTION like occlusion queries do. This
doesn't result in more flushing, because we invalidate INSTRUCTION on
every batchbuffer now that we're state streaming, anyway.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit dc7422405f)
We were updating our new viewport using the old buffers' _WindowMap.m.
We can do less math and avoid using that deprecated matrix by just
folding the viewport calculation right in to the driver.
Fixes piglit fbo-depthtex.
(cherry picked from commit debf751aea)
i915_update_draw_buffers() already handles the fallback bit for
missing stencil region, so here we just need to handle whether the GL
thinks we have stencil data or not (and disable the test if so).
(cherry picked from commit 79fee3a76b)
We were disabling it once at the moment we changed draw buffers, but
later enabling of depth test could turn it back on. Fixes
fbo-nodepth-test.
Note that ctx->DrawBuffer has to be checked because during context
create we get called while it's still unset. However, we know we'll
get an intel_draw_buffer() after that, so it's safe to make a silly
choice at this point.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30080
(cherry picked from commit fc4fba52cf)
The illusion of shared code here wasn't fooling anybody. It was
tempting to keep i830 and i915 still shared, but I think I actually
want to make them diverge shortly.
Reviewed-by: Chad Versace <chad@chad-versace.us>
(cherry picked from commit f34ec6169d)
Instead of using a chain of manually maintained if/else blocks to
handle "#extension" directives, we now consult a table that specifies,
for each extension, the circumstances under which it is available, and
what flags in _mesa_glsl_parse_state need to be set in order to
activate it.
This makes it easier to add new GLSL extensions in the future, and
fixes the following bugs:
- Previously, _mesa_glsl_process_extension would sometimes set the
"_enable" and "_warn" flags for an extension before checking whether
the extension was supported by the driver; as a result, specifying
"enable" behavior for an unsupported extension would sometimes cause
front-end support for that extension to be switched on in spite of
the fact that back-end support was not available, leading to strange
failures, such as those in
https://bugs.freedesktop.org/show_bug.cgi?id=38015.
- "#extension all: warn" and "#extension all: disable" had no effect.
Notes:
- All extensions are currently marked as unavailable in geometry
shaders. This should not have any adverse effects since geometry
shaders aren't supported yet. When we return to working on geometry
shader support, we'll need to update the table for those extensions
that are available in geometry shaders.
- Previous to this commit, if a shader mentioned
ARB_shader_texture_lod, extension ARB_texture_rectangle would be
automatically turned on in order to ensure that the types
sampler2DRect and sampler2DRectShadow would be defined. This was
unnecessary, because (a) ARB_shader_texture_lod works perfectly well
without those types provided that the builtin functions that
reference them are not called, and (b) ARB_texture_rectangle is
enabled by default in non-ES contexts anyway. I eliminated this
unnecessary behavior in order to make the behavior of all extensions
consistent.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 3097715d41)
These were previously 1-bit-wide bitfields. Changing them to bools
has a negligible performance impact, and allows them to be accessed by
offset as well as by direct structure access.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 9c4445de6e)
This is a squash cherry pick commit of:
glsl: Find the "closest" signature when there are multiple matches.
Previously, ir_function::matching_signature had a fatal bug: if a
function had more than one non-exact match, it would simply return NULL.
This occured, for example, when looking for max(uvec3, uvec3):
- max(vec3, vec3) -> score 1 (found first)
- max(ivec3, ivec3) -> score 1 (found second...used to return NULL here)
- max(uvec3, uvec3) -> score 0 (exact match...the right answer)
This did not occur for max(ivec3, ivec3) since the second match found
was an exact match.
The new behavior is to return a match with the lowest score. If there
is an exact match, that will be returned. Otherwise, a match with the
least number of implicit conversions is chosen.
Fixes piglit tests max-uvec3.vert and glsl-inexact-overloads.shader_test.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit 60eb63a855)
glsl: Suppress warning from matching_signature change.
gcc isn't smart enough to see that we only look at matched_score after
we've initialized it (because match != NULL happens at the same time)
(cherry picked from commit b043409adf)
glsl: Reject ambiguous function calls (multiple inexact matches).
According to the GLSL 1.20 specification, "it is a semantic error if
there are multiple ways to apply [implicit] conversions [...] such that
the call can be made to match multiple signatures."
Fixes a regression caused by 60eb63a855,
which implemented the wrong policy of finding a "closest" match.
However, this is not a revert, since the original code failed to
continue looking for an exact match once it found two inexact matches.
It's OK to have multiple inexact matches if there's also an exact match.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38971
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 7304909d65)
This brings us into compliance with page 17 (page 22 of the PDF) of
the GLSL 1.20 spec:
"[Sampler types] can only be declared as function parameters or
uniform variables (see Section 4.3.5 "Uniform"). ... [Samplers]
cannot be used as out or inout function parameters."
The spec isn't explicit about whether this rule applies to
structs/arrays containing shaders, but the intent seems to be to
ensure that it can always be determined at compile time which sampler
is being used in each texture lookup. So to avoid creating a
loophole, the rule needs to apply to structs/arrays containing shaders
as well.
Fixes piglit tests spec/glsl-1.10/compiler/samplers/*.frag, and fixes
bug 38987.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38987
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit f07221056e)
The new location, as a member function of glsl_type, is more
consistent with queries like is_sampler(), is_boolean(), is_float(),
etc. Placing the function inside glsl_type also makes it available to
any code that uses glsl_types.
(cherry picked from commit ddc1c96390)
The GLSL spec says:
"If a built-in function is redeclared in a shader (i.e., a
prototype is visible) before a call to it, then the linker will
only attempt to resolve that call within the set of shaders that
are linked with it."
This patch enforces this behavior. When a function call is processed
a flag is set in the ir_call to indicate whether the previously seen
prototype is the built-in or not. At link time a call will only bind
to an instance of a function that matches the "want built-in" setting
in the ir_call.
This has the odd side effect that first call to abs() in the shader
below will call the built-in and the second will not:
float foo(float x) { return abs(x); }
float abs(float x) { return -x; }
float bar(float x) { return abs(x); }
This seems insane, but it matches what the spec says.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31744
(cherry picked from commit 66f4ac988d)
This version is mostly Dan's post to the mesa-dev mailing list on
6/22/2011.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
(cherry picked from commit db311b45be)
This is exactly analogous to Eric's Gen6 change in commit
6861a70177. His explanation:
"This is just like PointSprite overrides, but it's always on for that
attribute."
Fixes glsl-fs-pointcoord and gtf/point_sprites.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry-picked from commit 186e37c754)
This is exactly analogous to Eric's Gen6 change in commit
f304bb8a5d. His explanation:
"We were assuming that the input attribute n to the FS was
FRAG_ATTRIB_TEXn, which happened to be true often enough for our
testcases."
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry-picked from commit 147d010295)
This is exactly analogous to Eric's Gen6 change in commit
e7280b16d6.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry-picked from commit 5edb3ddf41)
Commit b46dc45cee claimed that
NEW_POLYGONSTIPPLE is gratuitous, but somehow just changed comments
and whitespace instead of actually removing the flag.
While we're at it, 3DSTATE_PS doesn't appear to need NEW_LINE or
NEW_POLYGON either (those are in 3DSTATE_WM). Also, 3DSTATE_WM
doesn't appear to need BRW_NEW_NR_WM_SURFACES or BRW_NEW_CURBE_OFFSETS
either (those are in 3DSTATE_PS).
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry-picked from commit 57b57f6d1c)
This fixes a regression introduced by commit
a26121f375 (fd.o bug #39219).
Since the __glXInitialize() call should be unnecessary anyway, this is
probably a nicer fix for the original problem too.
NOTE: This is a candidate for the 7.10 and 7.11 branches.
Signed-off-by: Henri Verbeet <hverbeet@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Tested-by: padfoot@exemail.com.au
(cherry picked from commit 0f20e2e18f)
Until now, the stencil buffer was allocated as a Y tiled buffer, because
in several locations the PRM states that it is. However, it is actually
W tiled. From the PRM, 2011 Sandy Bridge, Volume 1, Part 2, Section
4.5.2.1 W-Major Format:
W-Major Tile Format is used for separate stencil.
The GTT is incapable of W fencing, so we allocate the stencil buffer with
I915_TILING_NONE and decode the tile's layout in software.
This fix touches the following portions of code:
- In intel_allocate_renderbuffer_storage(), allocate the stencil
buffer with I915_TILING_NONE.
- In intel_verify_dri2_has_hiz(), verify that the stencil buffer is
not tiled.
- In the stencil buffer's span functions, the tile's layout must be
decoded in software.
This commit mutually depends on the xf86-video-intel commit
dri: Do not tile stencil buffer
Author: Chad Versace <chad@chad-versace.us>
Date: Mon Jul 18 00:38:00 2011 -0700
On Gen6 with separate stencil enabled, fixes the following Piglit tests:
bugs/fdo23670-drawpix_stencil
general/stencil-drawpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX16-copypixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX16-drawpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX16-readpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX1-copypixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX1-drawpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX1-readpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX4-copypixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX4-drawpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX4-readpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX8-copypixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX8-drawpixels
spec/EXT_framebuffer_object/fbo-stencil-GL_STENCIL_INDEX8-readpixels
spec/EXT_packed_depth_stencil/fbo-stencil-GL_DEPTH24_STENCIL8-copypixels
spec/EXT_packed_depth_stencil/fbo-stencil-GL_DEPTH24_STENCIL8-readpixels
spec/EXT_packed_depth_stencil/readpixels-24_8
Note: This is a candidate for the 7.11 branch.
Signed-off-by: Chad Versace <chad@chad-versace.us>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit f7dbcba280)
Because we don't support them.
For instance, R32G32B32 is not R32G32B32X32 as was assumed.
Add support for R8G8B8X8_UNORM instead of R8G8B8_UNORM surfaces.
Use all zpass data for predication instead of the last block only.
Use query buffer as a ring instead of reusing the same area
for each new BeginQuery. All query buffer offsets are in bytes
to simplify offsets math.
We were failing at rounding, misplacing the non-baselevels. Fixes:
3DFX_texture_compression_FXT1/fbo-generate-mipmaps
ARB_texture_compression/fbo-generate-mipmaps
EXT_texture_compression_s3tc/fbo-generate-mipmaps
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit f2fd0d6304)
The first rendering after context create didn't know of the color
buffer yet, triggering a sw fallback. The intel_prepare_render() from
intelSpanRenderStart then found the buffer and turned off fallbacks,
but intelSpanRenderFinish was never called and things were left
mapped. By checking buffers before making the call on whether to do
the fallback pipeline or not, we avoid the fallback change inside of
the rendering pipeline.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31561
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 6e6b388604)
There's no pretty way to avoid the overwriting of the src operands, so
just use a temporary destination and rely on the MOV optimization.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit 46a7639174)
We were stomping over the source for the body of the LIT instruction
when doing the MOV of 1.0 to the uninteresting channels.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
(cherry picked from commit e3ea5bc08e)
Even if we don't have a current context, if we're freeing the rb we
should free its region (and BO). The renderbuffer unreference checks
appear to be just cargo-cult from the region unreference code.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=30217
Reviewed-by: Chad Versace <chad@chad-versace.us>
(cherry picked from commit 007c2d6cd2)
This should help us avoid leaking regions in region reference code by
making the API more predictable.
Reviewed-by: Chad Versace <chad@chad-versace.us>
(cherry picked from commit 036b74a7f8)
(cherry picked from commit d8f65c07e9)
The scissor state was incorrectly in a .prepare function instead of
.emit, so the packet would end up in the batch before the
STATE_BASE_ADDRESS. It appears that this doesn't actually hurt, as
the scissor address gets dereferenced according to the current SBA at
draw time.
(cherry picked from commit cd7bfd5d44)
