This adds seamless sampling for cubemap boundaries if requested.
The corner case averaging is messy but seems like it should be spec
compliant.
The face direction stuff is also a bit messy, I've no idea if that could
or should be simpler, or even if all my directions are fully correct!
v1.1: update comments, drop unneeded seamless calls for nearest, fix
if statement layout.
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
We must multiply the factor against the destination, not the source.
NOTE: Candidate for the stable branches.
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
This adds support to the softpipe texture sampler and tgsi exec.
In order to handle the extra input to the texture sampling,
I've had to expand the interfaces to take a c1 value for storing
the texture compare value for the TEX2 case.
v1.1: add comments (Brian)
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
v2: update relnotes-9.1
v3: use align_malloc and align_free for malloced buffers in r300g
v4: document the new CAP in the docs
This allows updating only a subrange of buffer bindings.
set_vertex_buffers(pipe, start_slot, count, NULL) unbinds buffers in that
range. Binding NULL resources unbinds buffers too (both buffer and user_buffer
must be NULL).
The meta ops are adapted to only save, change, and restore the single slot
they use. The cso_context can save and restore only one vertex buffer slot.
The clients can query which one it is using cso_get_aux_vertex_buffer_slot.
It's currently set to 0. (the Draw module breaks if it's set to non-zero)
It should decrease the CPU overhead when using a lot of meta ops, but
the drivers must be able to treat each vertex buffer slot as a separate
state (only r600g does so at the moment).
I can imagine this also being useful for optimizing some OpenGL use cases.
Reviewed-by: Brian Paul <brianp@vmware.com>
"get_transfer + transfer_map" becomes "transfer_map".
"transfer_unmap + transfer_destroy" becomes "transfer_unmap".
transfer_map must create and return the transfer object and transfer_unmap
must destroy it.
transfer_map is successful if the returned buffer pointer is not NULL.
If transfer_map fails, the pointer to the transfer object remains unchanged
(i.e. doesn't have to be NULL).
Acked-by: Brian Paul <brianp@vmware.com>
It's possible for us to have an unused sampler bound when the fragment
shader itself doesn't use any samplers. So the assertion isn't valid.
Fixes http://bugs.freedesktop.org/show_bug.cgi?id=53616
PIPE_MAX_SAMPLERS, PIPE_MAX_VERTEX_SAMPLERS and PIPE_MAX_GEOMETRY_SAMPLERS
were all defined to the same value (16).
In various places we're creating arrays such as
sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS] so we were assuming
the same number of max samplers for all shader stages anyway.
Of course, drivers are still free to advertise different numbers of max
samplers for different shaders.
The var!=softpipe->fs_variant assertion was failing because we weren't
nulling the softpipe->fs_variant pointer when binding a new shader.
Since softpipe->fs_variant depends on the current fs, it's of no use
when a new FS is bound.
Fixes http://bugs.freedesktop.org/show_bug.cgi?id=53318
Note: This is a candidate for the 8.0 branch.
Reviewed-by: José Fonseca <jfonseca@vmware.com>
The functions for setting samplers and sampler views for vertex,
fragment and geometry shaders were nearly identical. Now they
use shared code.
In the future, if the pipe_context functions for setting samplers
and sampler views for vert/frag/geom/compute are combined, this
will make updating the softpipe driver a snap.
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Combine separate arrays for vertex/fragment/geometry samplers, etc into
one array indexed by PIPE_SHADER_x.
This allows us to collapse separate code for vertex/fragment/geometry
state into loops over the shader stage. More to come.
Reviewed-by: José Fonseca <jfonseca@vmware.com>
The cube sampler generates two-dimensional texture coordinates and
hence passes NULL for the array for the third one. The actual 2D
sampler, lower in the pipe, knew not to used that array since it
didn't need it. But the samplers have become single-texel and the
coordinate array dereference has been moved up one step, to a level
where the code does not know only two coordinates are used. Hence the
segfault.
The simplest fix by far is to add a third dummy coordinate array in
the call to the next pipe step, which will be dereferenced to an
harmless 0 which then will be happily ignored by the sampler.
Fixes https://bugs.freedesktop.org/show_bug.cgi?id=52250
Signed-off-by: Olivier Galibert <galibert@pobox.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
This patch churns a lot because it needs to change 4-wide filters into
single pixel filters, since each fragment may use a different filter.
The only case not entirely supported is the anisotropic filtering.
Not sure what we want to do there, since a full quad is required by
that filter.
Signed-off-by: Olivier Galibert <galibert@pobox.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
- Use LLVM limits when LLVM is being used, instead of TGSI limits
- Provide draw_get_shader_param_no_llvm for when llvm is never used (softpipe)
- Eliminate several of the hacks around draw shader caps in several drivers
Unfortunately the hack for PIPE_MAX_VERTEX_SAMPLERS is still necessary.
Reviewed-by: Marek Olšák <maraeo@gmail.com>
These all return zero. Add a debug_printf() to catch the default case so
we don't accidently mishandle something important in the future.
v2: remove 'default' case to get compile-time warning
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
I tried to update all the old Makefiles that included the default
config to be sure they had a default target if they didn't previously
have one, since this new all target will always point at it. Almost
everything had one.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Adapted drivers: i915, llvmpipe, r300, r600, radeonsi, softpipe.
User index buffers have been disabled in nv30, nv50, nvc0 and svga to keep
things working.
This reduces CPU overhead in st_draw_vbo and removes a lot of unnecessary code
in that function which was required only to comply with the gallium interface,
but wasn't any useful really.
Adapted drivers: i915, llvmpipe, r300, softpipe.
No changes required in: r600, radeonsi.
User vertex buffers have been disabled in nv30, nv50, nvc0 and svga to keep
things working.
