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Mesa hasn't supported color-index rendering for a long time.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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_mesa_make_temp_float_image can't work on color-index textures, but
there is no such thing as a color-index texture anymore.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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These sampling functions don't work on color-index textures, but there
is no such thing as a color-index texture anymore.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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These enums were only valid with the paletted texture extensions.
This allows a couple other trivial clean-ups.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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::UpdateTexturePalette
There's nothing left that can call any of these functions. This also
removes the meta-ops code that implemented the first two.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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EXT_shared_texture_palette
This was also discussed at XDS 2010. However, actually making the
change was delayed because several drivers still exposed these
extensions to significant benefit (e.g., tdfx). Now that those
drivers have been removed, this code can be removed as well.
v2: A lot of bits that were missed in the previous patch have been removed.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Since we now lay out the VUE the same way regardless of whether
two-sided color is enabled, brw_compute_vue_map() no longer needs to
know whether two-sided color is enabled. This allows the two-sided
color flag to be removed from the clip, GS, and VS keys, so that fewer
GPU programs need to be recompiled when turning two-sided color on and
off.
Reviewed-by: Eric Anholt <[email protected]>
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When doing two-sided color on GEN6+, we use the SF unit's
INPUTATTR_FACING mode to cause front colors to be used on front-facing
triangles, and back colors to be used on back-facing triangles. This
mode requires that the front and back colors be adjacent in the VUE.
Previously, we would only place front and back colors adjacent in the
VUE when two-sided color was enabled. Now we place them adjacent in
the VUE whether two-sided color is enabled or not. (We still only
swizzle the colors when two-sided color is enabled, so there should be
no user-visible change).
This simplifies the implementation of the VUE map and reduces the
amount of code that is dependent on two-sided color mode.
Reviewed-by: Eric Anholt <[email protected]>
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The previous computation had two bugs: (a) it used a formula based on
Gen5 for Gen6 and Gen7 as well. (b) it failed to account for the fact
that PSIZ is stored in the VUE header. Fortunately, both bugs caused
it to compute a URB size that was too large, which was benign. This
patch computes the URB size directly from the VUE map, so it gets the
result correct in all circumstances.
Reviewed-by: Eric Anholt <[email protected]>
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The variables offset[], idx_to_attr[], nr_bytes, nr_attrs, and
header_regs were all serving purposes which are now served by the VUE
map.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, brw_clip_interp_vertex() iterated only through the
"non-header" elements of the VUE when performing interpolation
(because header elements don't need interpolation). This code now
refers exclusively to the VUE map to figure out which elements need
interpolation, so that brw_clip_interp_vertex() doesn't need to know
the header size.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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This patch replaces some ad-hoc computations using ATTR_SIZE and the
offset[] array to use the VUE map functions
brw_vert_result_to_offset() and brw_vue_slot_to_offset().
Reviewed-by: Eric Anholt <[email protected]>
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Previously we would examine the offset[] array (since an offset of 0
meant "not in use"). This paves the way for removing the offset[]
array.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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This makes header_regs available for computing VUE offsets within clip code.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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The offsets within the VUE of HPOS and NDC are needed only in a few
auxiliary clipping functions. This patch moves computation of those
offsets into the functions that need them, and does the computation
using the VUE map.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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map.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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This patch changes get_attr_override() (which computes the
relationship between vertex shader outputs and fragment shader inputs)
to use the VUE map.
Reviewed-by: Eric Anholt <[email protected]>
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This patch removes the variables nr_attrs and nr_setup_attrs, whose
purpose is now being served by the VUE map. nr_attr_regs and
nr_setup_regs are still needed, however they are now computed using
the VUE map rather than by counting the number of vertex shader
outputs (which caused subtle bugs when gl_PointSize was written).
Reviewed-by: Eric Anholt <[email protected]>
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Previously, the SF used nr_setup_attrs to determine whether it was
looking at the last element of the VUE. Changed this code to use the
VUE map.
Reviewed-by: Eric Anholt <[email protected]>
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These data structures were serving the same purpose as the VUE map,
but were buggy. Now that the code has been transitioned to use the
VUE map, they are not needed.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, SF code used the idx_to_attr[] array to compute the
location of entries in the VUE map. This array didn't properly
account for gl_PointSize. Now we use the VUE map directly.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, some of the code in SF erroneously used bitfields based on
the gl_frag_attrib enum when actually referring to vertex results.
This worked, because coincidentally the particular enum values being
used happened to match between gl_frag_attrib and gl_vert_result. But
it was fragile, because a future change to either gl_vert_result or
gl_frag_attrib would have made the enum values stop matching up. This
patch switches the SF code to use the correct enum.
Reviewed-by: Eric Anholt <[email protected]>
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The new function, called get_vert_result(), uses the VUE map to find
the register containing a given vertex attribute. Previously, we used
the attr_to_idx[] array, which served the same purpose but didn't
account for gl_PointSize correctly.
This fixes a bug on pre-Gen6 wherein the back side of a triangle would
be rendered incorrectyl if the vertex shader wrote to gl_PointSize.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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This patch moves the computation of the SF URB entry read offset from
upload_sf_unit() to its own function, so that it can be re-used when
creating the gen4-5 SF program.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, the new VS backend computed the size of the URB entry by
counting the number of MRFs used in emitting the URB entry. Now it
just gets it straight from the VUE map.
Reviewed-by: Eric Anholt <[email protected]>
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max_usable_mrf has been carefully set such that (max_usable_mrf -
base_mrf) is a multiple of 2, so that an even number of VUE slots are
emitted with each URB write (which Gen6 requires). This patch adds an
assertion to confirm that this is the case, and moves the comment to
this effect to be near the assertion.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, the new VS backend used two functions,
emit_vue_header_gen6() and emit_vue_header_gen4() to emit the fixed
parts of the VUE, and then a pair of carefully-constructed loops to
emit the rest of the VUE, leaving out the parts that were already
emitted as part of the header.
This patch changes the new VS backend to use the VUE map to emit the
entire VUE.
Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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Reviewed-by: Eric Anholt <[email protected]>
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Previously, emit_vue_header_gen4() used local variables to keep track
of which registers were storing the NDC and HPOS. This patch uses the
output_reg[] array instead, so that the code that manipulates NDC and
HPOS can be more easily refactored.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, the old VS backend computed the URB entry size by adding
the number of vertex shader outputs to the size of the URB header.
This often produced a larger result than necessary, because some
vertex shader outputs are stored in the header, so they were being
double counted. This patch changes the old VS backend to compute the
URB entry size directly from the number of slots in the VUE map.
Note: there's a subtle change in that we no longer count header
registers towards the size of the VF input. I believe this is
correct, because the header is only emitted in the output of the VS
stage--it is not present in the input. (As evidence for this, note
that brw_vs_state.c sets urb_entry_read_offset to 0--it does not
include space for the header as part of the VS input).
Reviewed-by: Eric Anholt <[email protected]>
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structure.
Reviewed-by: Eric Anholt <[email protected]>
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Some parts of the i965 driver keep track of locations within the VUE
(vertex URB entry) using byte offsets. This patch adds inline
functions to compute these byte offsets using the VUE map.
Reviewed-by: Eric Anholt <[email protected]>
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Several places in the i965 code make implicit assumptions about the
structure of data in the VUE (vertex URB entry). This patch adds a
function, brw_compute_vue_map(), which computes the structure of the
VUE explicitly. Future patches will modify the rest of the driver to
use the explicitly computed map rather than rely on implicit
assumptions about it.
Reviewed-by: Eric Anholt <[email protected]>
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Previously, this conversion was duplicated in several places in the
i965 driver. This patch moves it to a common location in mtypes.h,
near the declaration of gl_vert_result and gl_frag_attrib.
I've also added comments to remind us that we may need to revisit the
conversion code when adding elements to gl_vert_result and
gl_frag_attrib.
Reviewed-by: Eric Anholt <[email protected]>
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To avoid depending on libstdc++-xxx.dll
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So that they are used by native MinGW compilers too.
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