When faced with code such as:
mov vgrf31.0:UD, 960D
mov vgrf31.1:UD, vgrf30.xxxx:UD
The dead code eliminator didn't consider reg_offsets, so it decided that
the second instruction was writing was writing to the same register as
the first one, and eliminated the first one. But they're actually
different registers.
This fixes INTEL_DEBUG=shader_time for vertex shaders. In the above
code, vgrf31.0 represents the offset into the shader_time buffer where
the data should be written, and vgrf31.1 represents the actual time
data. With a completely undefined offset, results were...unexpected.
I think this is probably one of the few cases (maybe only case) where we
generate multiple MOVs to a large VGRF. Normally, we just use them as
texturing results; the other SEND-from-GRF uses a size 1 VGRF.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79029
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
"shader_time_add" is a lot more informative than "op152".
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Fix clang mismatched-tags warnings introduced with commit
4f5445a45d.
./glsl_symbol_table.h:37:1: warning: class 'glsl_type' was previously declared as a struct [-Wmismatched-tags]
class glsl_type;
^
./glsl_types.h:86:8: note: previous use is here
struct glsl_type {
^
./glsl_symbol_table.h:37:1: note: did you mean struct here?
class glsl_type;
^~~~~
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This patch fixes several clang constant-logical-operand warnings such as
the following.
../../../../../src/mesa/tnl_dd/t_dd_tritmp.h:130:32: warning: use of logical '||' with constant operand [-Wconstant-logical-operand]
if (DO_TWOSIDE || DO_OFFSET || DO_UNFILLED || DO_TWOSTENCIL)
^ ~~~~~~~~~~~
../../../../../src/mesa/tnl_dd/t_dd_tritmp.h:130:32: note: use '|' for a bitwise operation
if (DO_TWOSIDE || DO_OFFSET || DO_UNFILLED || DO_TWOSTENCIL)
^~
|
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Some apps seem to give us a null sampler/view for texture slots which
come before the last used texture slot. In particular 0ad triggers
this.
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Gallium (but not OpenGL) does allow nesting of queries, but there's no
limit specified (d3d10 has no limit neither). Nevertheless, for practical
purposes we need some limit in llvmpipe, otherwise we'd need more complex
handling of queries as we need to keep track of all binned queries (this
only affects queries which gather data past setup). A limit of 16 is too
small though, while 64 would suffice.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
The comment for _mesa_is_type_integer is confusing because it says that it
returns whether the type is an “integer (non-normalized)” format. I don't
think it makes sense to say whether a type is normalized or not because it
depends on what format it is used with. For example, GL_RGBA+GL_UNSIGNED_BYTE
is normalized but GL_RGBA_INTEGER+GL_UNSIGNED_BYTE isn't. If the normalized
comment is just a mistake then it still doesn't make much sense because it is
missing the packed-pixel types such as GL_UNSIGNED_INT_5_6_5. If those were
added then it effectively just returns type != GL_FLOAT.
That function was only used in _mesa_is_enum_format_or_type_integer. This
function effectively checks whether the format is non-normalized or the type
is an integer. I can't think of any situation where that check would make
sense.
As far as I can tell neither of these functions have ever been used anywhere
so we should just remove them to avoid confusion.
These functions were added in 9ad8f431b2.
Reviewed-by: Brian Paul <brianp@vmware.com>
That commit made possible that the items could be one just
after the other when their size was a multiple of ITEM_ALIGNMENT.
But compute_memory_prealloc_chunk still looked to leave a gap
between items. Resulting in that we got an infinite loop when
trying to add an item which would left no space between itself and
the next item.
Fixes piglit test: cl-custom-r600-create-release-buffer-bug
And the test for alignment I have just sent:
http://lists.freedesktop.org/archives/piglit/2014-June/011135.html
Sorry about this.
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
The code that parses LIBGL_DRIVERS_PATH was printing an
error for every attempted dlopen. It's not an error to
have to check multiple items in the path, only an error if
no suitable library is found. Reduced the load error to
a warning to match behavior of dynamic linker.
Signed-off-by: Courtney Goeltzenleuchter <courtney@LunarG.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Use the has_streamout flag as we do elsewhere to check if we need
to call pipe->set_stream_output_targets(). The driver might implement
the set_stream_output_targets() function, but not for all hardware
configurations.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
When a multisampled texture is used for sampling the fast clear color value
needs to be programmed into the surface state. This was being left as all
zeroes so if the surface was cleared to a value other than black then it
wouldn't work properly. This doesn't matter for single-sample textures because
in that case the MCS buffer is resolved before it is used as a texture source.
https://bugs.freedesktop.org/show_bug.cgi?id=79729
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: "10.1 10.2" <mesa-stable@lists.freedesktop.org>
We only need to alter the default state if we're emitting MOVs for
header related fields. So, we can simply move the push/pop of state in
to the if (header_present) block, bypassing it in the common case.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79903
In commit dc2d3a7f5c, Iago accidentally
moved fire_fb_write() above the brw_pop_insn_state(), which caused the
SEND to lose its predication and change from WE_normal to WE_all.
Haswell uses predicated SENDs for discards, so this broke Piglit's
tests for discards.
We want the Gen4-5 MOV to be uncompressed, unpredicated, and unmasked,
but the actual FB write itself should respect those. So, pop state
first, and force it again around the single MOV.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79903
Will simplify the automated conversion if we want to allow compiling the
driver for a single generation.
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This makes sure to use a no-op swizzle while iteratively rendering each
level of a mipmap otherwise we may loose components and effectively
apply the swizzle twice by the time these levels are sampled.
Signed-off-by: Robert Bragg <robert@sixbynine.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Previously we would emit the comparison, emit an AND to mask off extra
bits from the comparison result, then convert the result to float. Now,
do the comparison, then use a cleverly constructed SEL to pick either
0.0f or 1.0f.
No piglit regressions on Ivybridge.
total instructions in shared programs: 1642311 -> 1639449 (-0.17%)
instructions in affected programs: 136533 -> 133671 (-2.10%)
GAINED: 0
LOST: 0
Programs that are affected appear to save between 1 and 5 instuctions
(just by skimming the output from shader-db report.py.
v2: s/b2i/b2f/ in commit subject (noticed by Chris Forbes). Remove
extraneous fix_3src_operand (suggested by Matt). The latter change
required swapping the order of the operands and using predicate_inverse.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This fixes the limits for GL 3.2, and subsequently fixes
some segfaults in some varying packing tests and max varying tests
after the limits bumped.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds support for GL 3.2 layered rendering to softpipe.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds the layer info to the tile cache.
This changes clear_flags to be dynamically allocated as
MAX_LAYERS seems like a too big step.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This passes the piglit depth clamp tests.
this is required for GL 3.2.
v2: move min/max up one level, could go further, thanks
to Roland for suggestion.
v1: Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This limits the number of emitted vertices to the shaders max output
vertices, and avoids us writing things into memory that isn't big
enough for it.
Reviewed-by: Zack Rusin <zackr@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Add Intel driver hook for glGetTexImage to accelerate the case of reading
texture image into a PBO. This case gets huge performance gains by using
GPU BLIT directly to PBO rather than GPU BLIT to temporary texture followed
by memcpy.
No regressions on Piglit tests with Intel driver.
Performance gain (1280 x 800 FBO, Ivybridge):
glGetTexImage + glMapBufferRange with patch 1.45 msec
glGetTexImage + glMapBufferRange without patch 4.68 msec
v3: (by Kenneth Graunke)
- Fix compile after Eric's change to drop the tiling argument
to intel_miptree_create_for_bo.
- Add GL_TEXTURE_3D to blacklisted texture targets to prevent Piglit
regressions.
- Squash in several whitespace and coding style fixes.
When walking backwards, we want to stop at the head sentinel, which is
where scan_inst->prev->prev == NULL, not scan_inst->prev == NULL.
Fixes random crashes, as well as valgrind errors.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Cc: mesa-stable@lists.freedesktop.org
Giving the meta clear program a meaningful name makes it easier to find
in output such as INTEL_DEBUG=fs or INTEL_DEBUG=shader_time. We already
did so for integer programs, but neglected to label the primary program.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
These used to call different math emitters (brw_math vs. brw_math2).
Now that they both call gen6_math, they're virtually identical.
When unrolling SIMD16 to multiple SIMD8 operations, we should take care
not to apply sechalf to brw_null_reg for src1. Otherwise, we'd end up
with BRW_ARF_NULL + 1 as the register number, and I'm not sure if that's
valid.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
