The functions don't affect driver state. There is no code that would rely
on vertices being flushed prior to changing the states, and no code that
would check for _NEW_STENCIL before using the states.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
both functions don't change the framebuffer in any way
(if mesa_meta is not used)
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
No driver checks the flag. Nobody uses it.
I also removed the FLUSH_VERTICES calls, because PixelStorei has no effect
on rendering.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
_NEW_TRANSFORM_FEEDBACK is not used by core Mesa, so it can be removed.
Instead, an new private flag is added to i965 to serve the same purpose.
If you're new to this:
* When creating a context. you can set private dirty flags
in gl_context::DriverFlags, eg.:
ctx->DriverFlags.NewStateX = BRW_NEW_STATE_X;
* When StateX is changed, core Mesa does:
ctx->NewDriverState |= ctx->DriverFlags.NewStateX;
* When you have to draw, read and clear ctx->NewDriverState.
* Pros: not touching NewState, the driver decides the mapping between
GL states and hw state groups, unlimited number of flags in core Mesa
(still limited number of flags in the driver though)
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
because the code looks at the visual if there is a depth or stencil buffer
before enabling depth or stencil, respectively.
NOTE: This is a candidate for the stable branches.
Reviewed-by: Brian Paul <brianp@vmware.com>
Squashed commit of the following:
commit 04c5fa2cbb8e89d6f2fa5a75af1cca03b1f6b852
Author: José Fonseca <jfonseca@vmware.com>
Date: Tue Apr 23 17:37:18 2013 +0100
gallium: s/lower_left_origin/bottom_edge_rule/
commit 4dff4f64fa83b9737def136fffd161d55e4f1722
Author: José Fonseca <jfonseca@vmware.com>
Date: Tue Apr 23 17:35:04 2013 +0100
gallium: Move diagram to docs.
commit 442a63012c8c3c3797f45e03f2ca20ad5f399832
Author: James Benton <jbenton@vmware.com>
Date: Fri May 11 17:50:55 2012 +0100
gallium: Replace gl_rasterization_rules with lower_left_origin and half_pixel_center.
This change is necessary to achieve correct results when using OpenGL
FBOs.
Reviewed-by: Marek Olšák <maraeo@gmail.com>
This fixes a crash when a resource cannot be mapped to the CPU's address space
because it's too big.
This puts a global pipe_context in r600_screen, which is guarded by a mutex,
so that we can use pipe_context when there isn't one around.
Hopefully our multi-context support is solid.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
NOTE: This is a candidate for the 9.1 branch.
Although this might be useful for ARB_clear_buffer_object,
I need it for initializating resources in r600g.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
v2: comment cleanups
NOTE: This is a candidate for the 9.1 branch.
Number of vertices to fetch doesn't always equal the number of input
vertices. To correctly compute the number if IA primitives we need
to use the total number of input vertices, not only those that
need to be fetched.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
TGSI geometry shader input declerations are of the IN[][2] format
and the dimensions of the array have to be deduced from the input
primitive property.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
We want to be able to reset certain parts of the pipeline,
in particular the input primitive index, but only either with
seperate invocations of the draw_vbo or new instances. In all
other cases (e.g. new invocations due to primitive restart)
that data needs to be preserved. Add a function through which
we can reset instance dependent data.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Same approach as in the llvmpipe, if the geometry shader is
null and we have stream output then attach it to the vertex
shader right before executing the draw pipeline.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
The code doesn't set brw->query.obj to NULL, it sets query->bo to NULL.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
TEMP is not the only register file that accept unsigned. OUT too.
Actually, what determines the appropriate type of the destination value is
not the opcode, but rather the register.
Also cleanup/simplify code. Add a few more asserts, but also make
code more robust by handling graceful if assert fails.
This fixes segfault / assertion in the included vert-uadd.sh graw shader.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This should be reusable for other non-gallium drivers, so we can make the
extension always be available.
v2: Add a more detailed comment than the old function had (recommended
by Brian).
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)
I noticed a fallback in regnum through sysprof, and wanted a nicer way to
get information about it.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
2.7 was a particularly trouble ridden release.
Furthermore, the bug no longer can be reproduced ever since the
first_level state was taken in account.
Reviewed-by: Brian Paul <brianp@vmware.com>
They are supported on LLVM 3.1, at least on x86. (I haven't tested on PPC
though.)
Actually lp_build_linear_mip_levels() already has been emitting them for
some time.
This avoids intrinsics, which tend to be an obstacle for certain
optimization passes.
Reviewed-by: Brian Paul <brianp@vmware.com>
There will be a new IR for a3xx, which has a very different shader ISA
(more scalar oriented). So rename to avoid conflicts later when I start
adding a3xx support to the gallium driver.
Signed-off-by: Rob Clark <Rob Clark robdclark@freedesktop.org>
The standalone shader assembler needed some meta-data to know about
attributes/varyings/etc, to do the shader linkage. We don't need these
parts with gallium/tgsi, so just get rid of it.
Signed-off-by: Rob Clark <Rob Clark robdclark@freedesktop.org>
Should be able to handle all things which make this tricky to implement.
Fallthroughs, including most notably into/out of default, should be handled
correctly but are quite a mess.
If we see largely unoptimized switches in the wild should probably think
about some "real" switch optimization pass, e.g. things like this:
switch
case1
someinst
brk
case2
default
case3
someinst
brk
case4
someinst
endswitch
are legal, but the pointless case2/case3 statements not only cause condition
evaluation but will turn this into a "fake" fallthrough case (because
mask and defaultmask are already updated for case2 when default is
encountered) requiring executing code twice.
If default is at the end though, there's never any code re-execution, and
if that's not the case if there's no fallthrough in (not even a fake one)
and out of default there's no code re-execution neither.
v2: add comments, and use enum for break type instead of magic boolean.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
It seems there was a typo in gallivm breakc handling (I am actually still
not sure it is really needed but otherwise that statement really should go
away). Also fix the wrong src argument type, even though they weren't really
used.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
While initially that opcode probably was meant for something along the
lines of sm3 break_comp it has never worked that way (not even the
argument count was right) and now the opcode has quite different
semantics so just remove it. (Discovered by Jose Fonseca)
This is still not really correct, since at least for sm 4.0
the nesting limit is 64 per subroutine, and subroutine nesting itself
has a limit of 32, so since we have a flat stack we'd need 32*64.
But this should probably be better fixed with per-subroutine stacks,
since otherwise these structures get really big (like 100kB for the
lp_exec_mask).
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Input assembler needs to be able to decompose adjacency primitives
into something that can be understood by the rest of the pipeline.
The specs say that the adjacency primitives are *only* visible
in the geometry shader, for everything else they need to be
decomposed. Which in most of the cases is not an issue, because
the geometry shader always decomposes them for us, but without
geometry shader we were passing unchanged adjacency primitives
to the rest of the pipeline and causing crashes everywhere. This
commit introduces a primitive assembler which, if geometry
shader is missing and the input primitive is one of the
adjacency primitives, decomposes them into something
that the rest of the pipeline can understand.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
pre_clip_pos is a float[4] we just used (*float)[4] to be able to
jump within the array of vertex_headers with it. So if the idx
happened to be anything but 0, we'd actually read from some garbage
in memory. Change it to just be a simple pointer instead of casting
it to something that it's not. As suggested by Jose.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
