First, the texturing setup code is relevant for all pipeline stages,
while renderbuffer surfaces are only used by the WM.
Secondly, renderbuffer and texture setup depends on a different set of
dirty bits. There's no reason to walk the array of textures when
changing draw buffers, or vice-versa.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
These were only split for historical reasons: brw_wm_constants used to
be the "prepare" step, while brw_wm_constant_surface was "emit". Now
that both happen at emit time, it makes sense to combine them.
Call the newly combined state atom "brw_wm_pull_constants" to indicate
help distinguish it from the Gen6+ atoms that handle push constants.
Finally, remove the BRW_NEW_WM_CONSTBUF dirty bit entirely now that it's
never flagged nor used.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
When reading the "brw_wm_constants" and "gen6_wm_constants" atoms
side-by-side, I initially failed to notice the crucial difference:
the Gen6 atoms are for Push Constants, while brw_wm_constants handles
Pull Constants. (Gen4/5 Push Constants are handled by "brw_curbe.")
Renaming these should clarify the code and save me from constant
confusion over the fact that "gen6_wm_constants" isn't just a newer
version of "brw_wm_constants."
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This code is fairly fragile, as it depends on the ordering of the
entries in the binding table, which will change soon.
Also, stop listening on the BRW_NEW_WM_CONSTBUF dirty bit as it's no
longer required.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
These fields control how many entries the hardware prefetches into the
state cache, so they only impact performance, not correctness. However,
it's not clear how to use this in a way that's beneficial.
According to the documentation, kernels "using a large number" of
entries may wish to program this to zero to avoid thrashing the cache;
it's unclear how many is too many. Also, Ironlake's WM was missing this
feature entirely---the count had to be zero.
The dirty bit tracking to handle this complicates the surface state
and binding table setup; removing it should simplify things and make
future refactoring easier. So just set 0 for the number of entries
rather than trying to compute and track it.
Appears to have no impact on Nexuiz and OpenArena on Sandybridge.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
The comment states that brw_update_vs_constant_surface produces a
CACHE_NEW_SURF_BIND dirty bit, but it doesn't. In fact, that bit
no longer even exists.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
brw_vs_surfaces _produces_ the BRW_NEW_NR_VS_SURFACES dirty bit, so it
makes no sense for it to subscribe to it.
Fixes an assertion failure in many piglit tests when INTEL_DEBUG is set:
brw_state_upload.c:484: void brw_upload_state(struct brw_context *):
Assertion `!check_state(&examined, &generated)' failed.
One such piglit test is vs-uniform-array-mat2-col-rd.shader_test.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Comparing brw_upload_vs_pull_constants and brw_upload_wm_pull_constants,
it became evident that something was amiss: the VS code had both
CACHE_NEW_VS_PROG and BRW_NEW_VERTEX_PROGRAM, while the WM code was
missing the CACHE_NEW_WM_PROG flag.
Not observed to fix anything, but likely necessary.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Now that we have vtable entries in place, we should use them. This
allows us to drop the cut and pasted Gen7 brw_tracked_state atoms as
they now do exactly the same thing as their brw_wm_surface_state
counterparts.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Gen7+ SURFACE_STATE is different from Gen4-6, so we need separate
per-generation functions for creating and updating it. However, the
usage is the same, and callers just want to utilize the appropriate
functions with minimal pain. So, put them in the vtable.
Since these take a brw_context pointer and are only used on Gen4, just
add a forward declaration. This is the simplest (if not cleanest)
solution. It would be nicer to have a i965-specific vtable, but that's
a refactor for another day.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
These two are fairly unique types so add specific cases for decoding them.
Passes piglit fbo-clear-format and fbo-generatemipmap-format tests for these
two extensions.
Signed-off-by: Dave Airlie <airlied@redhat.com>
This ports the softpipe NV_conditional_render support to llvmpipe.
This passes the nv_conditional_render-* piglit tests.
Signed-off-by: Dave Airlie <airlied@redhat.com>
This adds a new function r600_need_cs_space. Currently, it's easy to overflow
the CS - queries are not counted in. I guess that's not the only case where
the driver may crap out.
This is the inverse operation to _mesa_pack_rgba_span_int. The 16-bit
code isn't done because of lack of testing and not being sure how sign
extension/clamping should be handled between, say, 16-bit int and
32-bit int or uint.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This requires using a new fragment shader to get the integer color
output, and a new vertex shader because #version has to match between
the two.
v2: Clarify that there's no need for BindFragDataLocation.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)
We're missing support for the software paths still, but basic
rendering is working.
v2: Override RGB_INT32/UINT32 to not be renderable, since the hardware
can't do it but we do allow texturing from it now. Drop the
DataType override, since the _mesa_problem() isn't in that path
any more.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)
Before, I was tracking the ir_variable * found for gl_FragColor or
gl_FragData[]. Instead, when visiting those variables, set up an
array of per-render-target fs_regs to copy the output data from. This
cleans up the color emit path, while making handling of multiple
user-defined out variables easier.
v2: incorporate idr's feedback about ir->location (changes by Kenneth Graunke)
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
When rendering to integer color buffers, we need to be careful to use
MRFs of the correct type when emitting color writes.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Previously, brw_type_for_base_type returned UD for array variables,
similar to structures. For structures, each field may have a different
type, so every field access must explicitly override the register's type
with that field's type. We chose to return UD in this case since it was
the least common, so errors would be more obvious.
For arrays, it makes far more sense to return the type corresponding to
an element of the array. This allows normal array access to work
without the hassle of explicitly overriding the register's type.
This should obsolete a bunch of type overrides throughout the code.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
v2: s/GL_TRUE/true/, and re-enable RGB_INT32 based on discussion
yesterday about required RB formats vs texture formats.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)
This will let the feature be incrementally developed, hidden behind
the flag we're all using as we work on GL 3.0 support.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
While not required by any particular spec version, mplayer was asking
for L16 and hoping for actual L16 without checking. The 8 bits
allocated led to 10-bit planar video data stored in the lower 10 bits
giving only 2 bits of precision in video. While it was an amusing
effect, give them what they actually wanted instead.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41461
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
We want to be able to support some formats for texturing that we can't
render to, which means that some choices for RenderbufferStorage end
up being incomplete (for example, L8 currently). For these, where we
don't render to them, we don't want to have to make up an rb->DataType
that's only used for GetRow()/PutRow().
Commit 1401b96b (radeon: cleanup radeon shared code after r300 and
r600 classic drivers removal) removed the file
src/mesa/drivers/dri/radeon/server/radeon.h, but it left behind the
symlink which was used to share that file into the
src/mesa/drivers/dri/r200/server directory.
This patch removes the dangling symlink.
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
