| Commit message (Collapse) | Author | Age | Files | Lines |
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By using a dst_type in the the gather interface, gather has some more
knowledge about how values should be fetched.
E.g. if this is a 3x32bit fetch and dst_type is 4x32bit vector gather
will no longer do a ZExt with a 96bit scalar value to 128bit, but
just fetch the 96bit as 3x32bit vector (this is still going to be
2 loads of course, but the loads can be done directly to simd vector
that way).
Also, we can now do some try to use the right int/float type. This should
make no difference really since there's typically no domain transition
penalties for such simd loads, however it actually makes a difference
since llvm will use different shuffle lowering afterwards so the caller
can use this to trick llvm into using sane shuffle afterwards (and yes
llvm is really stupid there - nothing against using the shuffle
instruction from the correct domain, but not at the cost of doing 3 times
more shuffles, the case which actually matters is refusal to use shufps
for integer values).
Also do some attempt to avoid things which look great on paper but llvm
doesn't really handle (e.g. fetching 3-element 8 bit and 16 bit vectors
which is simply disastrous - I suspect type legalizer is to blame trying
to extend these vectors to 128bit types somehow, so fetching these with
scalars like before which is suboptimal due to the ZExt).
Remove the ability for truncation (no point, this is gather, not conversion)
as it is complex enough already.
While here also implement not just the float, but also the 64bit avx2
gathers (disabled though since based on the theoretical numbers the benefit
just isn't there at all until Skylake at least).
Reviewed-by: Jose Fonseca <[email protected]>
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We cannot guarantee that vertex buffers have the necessary alignment for
fetching all AoS members at once (for instance 4x32bit XYZW data). We can
however guarantee that for textures. This did not cause errors for older
llvm versions but it now matters and will cause segfaults if the data
happens to not be aligned. Thus we need to set alignment manually.
(Note that we can't actually really guarantee data to be even element aligned
due to offsets in vertex buffers being bytes and OpenGL allowing this, but
it does not matter for x86 as alignment is only required for sse vectors -
not sure what happens on other archs, however.)
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=85467.
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Squashed commit of the following:
commit 0857a7e105bfcbc4d1431b2cc56612094c747ca3
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:07 2013 -0400
gallivm: Fix lp_build_rgba8_to_fi32_soa for big endian
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 0d65131649a8aa140e2db228ba779d685c4333e3
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:07 2013 -0400
gallivm: Fix big-endian machines
This adds a bit-shift count to the format table, and adds the concept of
vector or bitwise alignment on gathers.
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 9740bda9b7dc894b629ed38be9b51059ce90818f
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:07 2013 -0400
llvmpipe: Fix convert_to_blend_type on big-endian
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit ae037c2de0f029e4e99371c0de25560484f0d8df
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
util: Convert color pack to packed formats
This fixes them on big-endian.
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 5b05ac0c89ae092ea8ba5bba9f739708d7396b5c
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
graw-xlib: Convert to packed formats
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 51396e7d098cb6ff794391cf11afe4dbf86dbea0
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
format: Convert to packed formats
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 417b60bc66eb450e68a92ab0e47f76e292b385e6
Author: Adam Jackson <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
st/dri: Convert to packed formats
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 0934b2e022a5e0847d312c40734e2b44cac52fd8
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
st/xlib: Convert to packed formats
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit a307ea3c3716a706963acce7966b5e405ba11db9
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
gbm: Convert to packed formats
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 53eebdd253e1960a645ea278f31d7ef6a6cf4aeb
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
tests: Convert to packed formats
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 2f77fe3ee524945eacd546efcac34f7799fb3124
Author: Adam Jackson <[email protected]>
Date: Tue Jun 18 13:07:37 2013 -0400
gallium: Document packed formats
Signed-off-by: Adam Jackson <[email protected]>
commit 1f1017159ce951f922210a430de9229f91f62714
Author: Richard Sandiford <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
gallium: Introduce 32-bit packed format names
These are for interacting with buffers natively described in terms of
bit shifts, like X11 visuals:
uint32_t xyzw8888 = (x << 0) | (y << 8) | (z << 16) | (w << 24);
Define these in terms of (endian-dependent) aliases to the array-style
format names.
Reviewed-by: Adam Jackson <[email protected]>
Signed-off-by: Richard Sandiford <[email protected]>
commit 6cc7ab1ee66ed668da78c1d951dfd7782b4e786a
Author: Adam Jackson <[email protected]>
Date: Mon Jun 3 12:10:32 2013 -0400
gallium: Document format name conventions
v2:
- Fix a channel name thinko (Michel Dänzer)
- Elaborate on SCALED versus INT
- Add links to DirectX and FOURCC docs
Signed-off-by: Adam Jackson <[email protected]>
commit df4d269e7fb62051a3c029b84147465001e5776e
Author: Adam Jackson <[email protected]>
Date: Tue Jun 18 12:25:06 2013 -0400
gallivm: Remove all notion of byte-swapping
Signed-off-by: Adam Jackson <[email protected]>
Signed-off-by: Adam Jackson <[email protected]>
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This branch defines a gallivm_state structure which contains the
LLVMBuilderRef, LLVMContextRef, etc. All data structures built with
this object can be periodically freed during a "garbage collection"
operation.
The gallivm_state object has to be passed to most of the builder
functions where LLVMBuilderRef used to be used.
Conflicts:
src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
src/gallium/drivers/llvmpipe/lp_state_setup.c
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They need to grow, and they provide basic functionality which is not
specific to sampling.
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