We don't care if things like vertex data get smashed by render target
data, but we do need to make sure that shader code doesn't get rendered
to.
v2: Fix overflowing read of gl_relocs[] that incorrect flagged of some
VBOs as shader code.
The comment conflicted with the support in the code, so I moved the TMU
write validation to where the comment was, and dropped some dead arguments
from the functions while changing their signatures.
This doesn't load/store the Z contents across submits yet. It also
disables early Z, since it's going to require tracking of Z functions
across multiple state updates to track the early Z direction and whether
it can be used.
v2: Move the key setup to before the search for the key.
Otherwise, once we're not flushing at the end of every draw, we'll free
things like gallium resources, and free the backing GEM object, before
we've flushed the rendering using it to the kernel.
render_cl_size/bin_cl_size includes relocations, while the hardware buffer
doesn't. If you don't emit a HALT packet, the command parser continues
until the end register's value. We can't allow executing unvalidated
buffer contents (and it's actually harmful in the render lists Mesa is
emitting, since VC4_PACKET_STORE_MS_TILE_BUFFER_AND_EOF doesn't trigger a
halt).
This required building a shader parser that would walk the program to find
where the texturing-related uniforms are in the uniforms stream.
Note that as of this commit, a new kernel is required for rendering on
actual VC4 hardware (currently that commit is named "drm/vc4: Introduce
shader validation and better command stream validation.", but is likely to
be squashed as part of an eventual merge of the kernel driver).
This ensures that when I'm using the simulator, I get a closer match to
what behavior on real hardware will be. It lets me rapidly iterate on the
kernel validation code (which otherwise has a several-minute turnaround
time), and helps catch buffer overflow bugs in the userspace driver
faster.
Only rgba8888 works, and only a single texture unit, and it's only under
simulation because I haven't built the kernel interface yet.
v2: Rebase on helpers.
v3: Fold in the don't-break-the-arm-build fix.
This limit is fixed in Mesa core and cannot be changed.
It only affects ARB_vertex_program and ARB_fragment_program.
The minimum value for ARB_vertex_program is 1 according to the spec.
The maximum value for ARB_vertex_program is limited to 1 by Mesa core.
The value should be zero for ARB_fragment_program, because it doesn't
support ARL.
Finally, drivers shouldn't mess with these values arbitrarily.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This computes all GL versions before any context is created.
It's a requirement for GLX_MESA_query_renderer.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Setting Const.MaxSamples needed a rework, so that it doesn't call
st_choose_format, which depends on st_context.
Other than that, there is no change in functionality.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
I don't know of any hardware which supports it.
With this, GL_OES_compressed_ETC1_RGB8_texture is supported if RGBA8
is supported.
Reviewed-by: Glenn Kennard <glenn.kennard@gmail.com>
The formats are emulated by translating them into plain uncompressed
formats, because I don't know of any hardware which supports them.
This is required for GLES 3.0 and ARB_ES3_compatibility (GL 4.3).
This casues problems when converting atomics to use the GRF. Sometimes the atomic operation would get eaten by CSE when it shouldn't.
v2: Roll the has_side_effects check into is_expression
Signed-off-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Eric Anholt
Marek Olšák
Brian Paul
Jason Ekstrand