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Fixes piglit glsl-vs-if-bool and progs/glsl/twoside, and will likely be
useful for the looping code.
Bug #18992
(cherry picked from commit 78c022acd0b37bf8b32f04313d76255255e769c1)
(cherry picked from commit 63d7a2f53fb38e170f4e55f2b599e918edf2c512)
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(cherry picked from commit fd7d764514c540987549c3ea88a2d669b0f0ea58)
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Previously, we'd be branching based on whatever condition code happened to be
laying around.
(cherry picked from commit 7007f8b352763af89805f287153cb7972bff0523)
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See comment on Vertex URB Entry Read Length for VS_STATE.
This, combined with the previous three commits, fixes #22945.
(cherry picked from commit e340d4f9866db4bae391288e83a630a310b0dd2b)
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This fix is just from code and docs inspection, but it may fix hangs on
some applications.
(cherry picked from commit e93848e595176ae0bad3bfe64e0ca63fd089bb72)
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Make the use_const_buffer field per-program and only call the code which
updates the constant buffer's data if the flag is set.
This should undo the perf regression from 20f3497e4b6756e330f7b3f54e8acaa1d6c92052
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The READ message's msg_control value can be 0 or 1 to indicate that the
Oword should be read into the lower or upper half of the target register.
It seems that the other half of the register gets clobbered though. So
we read into two dest registers then use a MOV to combine the upper/lower
halves.
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Now that we have real constant buffers, the demands on the CURBE are lessened.
When we use real VS/WM constant buffers we only use the CURBE for clip planes.
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A scatter-read should be possible, but we're just using two READs for
the time being.
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Calls to release_tmps() were causing the temps holding constants to get
recycled.
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There's really no need for two negation fields. This came from the
GL_NV_fragment_program extension. The new, unified Negate bitfield applies
after the absolute value step.
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This mostly came down to finding the right MRF incantation in the
brw_dp_READ_4_vs() function.
Note: this feature is still disabled (but getting close to done).
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Hook up a constant buffer, binding table, etc for the VS unit.
This will allow using large constant buffers with vertex shaders.
The new code is disabled at this time (use_const_buffer=FALSE).
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Previously, the prog_instruction::Data field was used to map original Mesa
instructions to brw instructions in order to resolve subroutine calls. This
was a rather tangled mess. Plus it's an obstacle to implementing dynamic
allocation/growing of the instruction buffer (it's still a fixed size).
Mesa's GLSL compiler emits a label for each subroutine and CAL instruction.
Now we use those labels to patch the subroutine calls after code generation
has been done. We just keep a list of all CAL instructions that needs patching
and a list of all subroutine labels. It's a simple matter to resolve them.
This also consolidates some redundant post-emit code between brw_vs_emit.c and
brw_wm_glsl.c and removes some loops that cleared the prog_instruction::Data
fields at the end.
Plus, a bunch of new comments.
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This doesn't effect correctness, but we were emitting an extraneous ADD.
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Bug #19226.
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Also, fix some RNDD vs. RNDZ confusion elsewhere.
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The partial precision mode doesn't have quite enough bits of precision
to pass conformance tests.
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This cuts one MOV out when setting a zero header.
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The mobile and desktop chipsets are the same, and having them separate is
more typing and more chances to screw up.
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Patch is correctly applied this time.
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This reverts commit b993d539a76e7f1446890a85e4b61deec4d4162d. The
patch was applied incorrectly. Actual fix coming soon. Sorry for the
noise.
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This reverts commit 3158e981f5f37768e9b04765704b9eaece8b899b.
rhw issue has gone away on IGD.
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The WM code had this right, so copy its behavior. This reverts a flipping
of the arguments to SLT in brw_vs_tnl which came in with the GLSL code that
probably occurred to work around the flipped results, and brings the code back
in line with t_vp_build.c.
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Conflicts:
src/mesa/drivers/dri/i965/brw_sf.h
src/mesa/drivers/dri/i965/intel_context.c
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eg: #include "shader/program.h" and remove -I$(TOP)/src/mesa/program
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