We used to pass the number of components actually used for the
coordinate (rather than padding, shadow comparitors, and projectors) by
hand, specifying it on every _texture() call.
The new helper function can just compute this, eliminating a lot of
potential mistakes.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This computes the number of components necessary to address a sampler
based on its dimensionality. It will be useful for texturing built-ins.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
It is planned to ship openSUSE 13.1 with -shared libs.
nouveau.la, nv30.la, nv50.la and nvc0.la are currently LIBADDs in all nouveau
related targets.
This change makes it possible to easily build one shared libnouveau.so which is
then LIBADDed.
Also dlopen will be faster for one library instead of three and build time on
-jX will be reduced.
Whitespace fixes were requested by 'git am'.
Signed-off-by: Johannes Obermayr <johannesobermayr@gmx.de>
Acked-by: Christoph Bumiller <christoph.bumiller@speed.at>
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
According to GLSL, the shader may call EndPrimitive() at any point
during its execution, causing the line or triangle strip currently
being output to be terminated and a new strip to be begun.
This is implemented in gen7 hardware by using one control data bit per
vertex, to indicate whether EndPrimitive() was called after that
vertex was emitted.
In order to make this work without sacrificing too much efficiency, we
accumulate 32 control data bits at a time in a GRF. When we have
accumulated 32 bits (or when the shader terminates), we output them to
the appropriate DWORD in the control data header and reset the
accumulator to 0.
We have to take special care to make sure that EndPrimitive() calls
that occur prior to the first vertex have no effect.
Since geometry shaders that output a large number of vertices are
likely to be rare, an optimization kicks in if max_vertices <= 32. In
this case, we know that we can wait until the end of shader execution
before any control data bits need to be output.
I've tried to write the code in such a way that in the future, we can
easily adapt it to output stream ID bits (which are two bits/vertex
instead of one).
Fixes piglit tests "spec/glsl-1.50/glsl-1.50-geometry-end-primitive *".
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This is needed for GS_OPCODE_PREPARE_CHANNEL_MASKS.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Previously, brw_urb_WRITE() would always generate a URB_WRITE_HWORD
message, we always wanted to write data to the URB in pairs of varying
slots or larger (an HWORD is 32 bytes, which is 2 varying slots).
In order to support geometry shader EndPrimitive functionality, we'll
need the ability to write to just a single OWORD (16 byte) slot, since
we'll only be outputting 32 of the control data bits at a time. So
this patch adds a flag that will cause brw_urb_WRITE to generate a
URB_WRITE_OWORD message.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Previously, brw_urb_WRITE() would unconditionally override the channel
masks in the URB_WRITE message to 0xff (indicating that all channels
should be written to the URB).
In order to support geometry shader EndPrimitive functionality, we'll
need the ability to set the channel masks programatically, so that we
can output just 32 of the control data bits at a time. So this patch
adds a flag that will prevent brw_urb_WRITE() from overriding them.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
The gen7 geometry shader uses a "control data header" at the beginning
of the output URB entry to store either
(a) flag bits (1 bit/vertex) indicating whether EndPrimitive() was
called after each vertex, or
(b) stream ID bits (2 bits/vertex) indicating which stream each vertex
should be sent to (when multiple transform feedback streams are in
use).
Fortunately, OpenGL only requires separate streams to be supported
when the output type is points, and EndPrimitive() only has an effect
when the output type is line_strip or triangle_strip, so it's not a
problem that these two uses of the control data header are mutually
exclusive.
This patch modifies do_vec4_gs_prog() to determine the correct
hardware settings for configuring the control data header, and
modifies upload_gs_state() to propagate these settings to the
hardware.
In addition, it modifies do_vec4_gs_prog() to ensure that the output
URB entry is large enough to contain both the output vertices *and*
the control data header.
Finally, it modifies vec4_gs_visitor so that it accounts for the size
of the control data header when computing the offset within the URB
where output vertex data should be stored.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
v2: Fixed incorrect handling of IVB/HSW differences.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This information will be useful in the i965 back end, since we can
save some compilation effort if we know from the outset that the
shader never calls EndPrimitive().
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
v2: Do not attempt to share the code that uploads
3DSTATE_BINDING_TABLE_POINTERS_GS, 3DSTATE_SAMPLER_STATE_POINTERS_GS,
or 3DSTATE_GS with VS.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
v3: Add _NEW_TRANSFORM to gen7_gs_state.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This will allow us to reuse some code when setting up the geometry
shader stage.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Mesa provides the wayland-egl libs and the pkgconfig file, but the headers
originate from the wayland package. Ensure everything matches, by requiring
application builds to look at the wayland headers as well.
Signed-off-by: Torsten Duwe <duwe@suse.de>
Signed-off-by: Johannes Obermayr <johannesobermayr@gmx.de>
Commit b77316ad75
st/dri: always copy new DRI front and back buffers to corresponding MSAA buffers
introduced creating a pipe_context for every call to validate, which is not required
because the callers have a context anyway.
Only exception is egl_g3d_create_pbuffer_from_client_buffer, can someone test if it
still works with NULL passed as context for validate? From examining the code I
believe it does, but I didn't thoroughly test it.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: 9.2 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
We've observed GPU hangs on Ivybridge from the following instruction:
mov(8) g115<1>.F 0D { align16 WE_normal NoDDChk 1Q };
There should be no reason to ever set the writemask on a destination
register to zero, except for perhaps the ARF NULL register.
This patch adds an assertion to enforce this for non-ARF registers.
Excluding ARFs is conservative yet should still catch the majority
of mistakes.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Otherwise, coordinates with four components would result in a MOV
with a destination writemask that has no channels enabled:
mov(8) g115<1>.F 0D { align16 WE_normal NoDDChk 1Q };
At best, this is stupid: we emit code that shouldn't do anything.
Worse, it apparently causes GPU hangs (observable with Chris's
textureGather test on CubeArrays.)
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <idr@freedesktop.org>
Cc: mesa-stable@lists.freedesktop.org
We can easily compute these without loops, resulting in simpler and
shorter code.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Suggested-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
This was originally introduced by commit
ba47aabc98, but unfortunately the commit message
doesn't go into much detail about why +INF would be a problem here.
A similar issue exists for STATE_FOG_PARAMS_OPTIMIZED, but allowing infinity
there would potentially introduce NaNs where they shouldn't exist, depending
on the values of fog end and the fog coord. Since STATE_FOG_PARAMS_OPTIMIZED
is only used for fixed function (including ARB_fragment_program with fog
option), and the calculation there probably isn't very stable to begin with
when fog start and end are close together, it seems best to just leave it
alone.
This fixes piglit glsl-fs-fogscale, and a couple of Wine D3D tests. No piglit
regressions on Cayman.
Signed-off-by: Henri Verbeet <hverbeet@gmail.com>
Tested-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
278372b47e added the uninitialized pointer
field gl_sync_object:Label. A free of this pointer, added in commit
6d8dd59cf5, resulted in a crash.
This patch fixes piglit ARB_sync regressions with swrast introduced by
6d8dd59cf5.
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
These instructions will be used with immediate arguments in the upcoming
ldexp lowering pass and frexp implementation.
v2: Add vec4 support as well.
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Because why doesn't GLSL allow you to do this already?
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
It's a ?: that operates per-component on vectors. Will be used in
upcoming lowering pass for ldexp and the implementation of frexp.
csel(selector, a, b):
per-component result = selector ? a : b
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
builtin_info was originally going to be a structure containing a bunch
of information, but after various rewrites, it turned into a boolean
availability predicate.
builtin_avail is a better name than builtin_info, since it doesn't
store any information other than availability.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Matt noticed that this was missing. Nothing uses this currently.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
None of this is used anymore.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Acked-by: Paul Berry <stereotype441@gmail.com>
We don't actually use anything from builtin_function.cpp, so we don't
need to generate it anymore.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Acked-by: Paul Berry <stereotype441@gmail.com>
All built-ins are now handled by the new code; the old system is dead.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This creates a new replacement for the existing built-in function code.
The new module lives in builtin_functions.cpp (not builtin_function.cpp)
and exists in parallel with the existing system. It isn't used yet.
The new built-in function code takes a significantly different approach:
Instead of implementing built-ins via printed IR, build time scripts,
and run time parsing, we now implement them directly in C++, using
ir_builder. This translates to faster load times, and a much less
complex build system.
It also takes a different approach to built-in availability: each
signature now stores a boolean predicate, which makes it easy to
construct arbitrary expressions based on _mesa_glsl_parse_state's
fields. This is much more flexible than the old system, and also
easier to use.
Built-ins are also now stored in a single gl_shader object, rather
than being spread out across a number of shaders that need to be linked.
When searching for a matching prototype, we simply consult the
availability predicate. This also simplifies the code.
v2: Incorporate Matt Turner's feedback: use the new fma() function rather
than expr(). Don't expose textureQueryLOD() in GLSL 4.00 (since it
was renamed to textureQueryLod()). Also correct some #undefs.
v3: Incorporate Paul Berry's feedback: rename legacy to compatibility;
add comments to explain a few things; fix uvec availability; include
shaderobj.h instead of repeating the _mesa_new_shader prototype.
v4: Fix lack of TEX_PROJECT on textureProjGrad[Offset] (caught by oglc).
Add an out_var convenience function (more feedback by Matt Turner).
v5: Rework availability predicates for Lod functions. They were broken.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Enthusiastically-acked-by: Paul Berry <stereotype441@gmail.com>
Each ir_factory needs an instruction list and memory context in order to
be useful. Rather than creating an object and manually assigning these,
we can just use optional parameters in the constructor.
This makes it possible to create a ready-to-use factory in one line:
ir_factory body(&sig->body, mem_ctx);
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Adding new convenience emitters makes it easier to generate IR involving
these opcodes.
bitfield_insert is particularly useful, since there is no expr() for
quadops.
v2: Add fma() and rename lrp() operands to x/y/a to match the GLSL
specification (suggested by Matt Turner). Fix whitespace issues.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
IR builder already offers a lot of swizzling functions, such as
swizzle_xxxx, swizzle_z, or swizzle_for_size.
The swizzle_xxxx style is convenient if you statically know which
components you want. swizzle_for_size is great if you want to select
the first few components. However, if you want to select components
based on, say, a loop counter, none of those are sufficient.
IR builder actually already had support for arbitrary swizzling, but
didn't expose it. This patch exposes that API.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
dotlike() uses ir_binop_mul for scalars, and ir_binop_dot for vectors.
When generating built-in functions, we often want to use regular
multiply for scalar signatures, and dot() for vector signatures.
ir_binop_dot only works on vectors, so we have to switch opcodes,
even if the code is otherwise identical. dotlike() makes this easy.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
We use "ret" as the function name since "return" is a C++ keyword, and
"ir_return" is already a class name.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
José Fonseca
Kenneth Graunke
Johannes Obermayr
Paul Berry
Torsten Duwe
Maarten Lankhorst
Matt Turner
Henri Verbeet
Vinson Lee
Brian Paul