As with vkCmdCopyImageToBuffer, this implements a fast path using the
TLB for the case where we are copying images from offset (0, 0). We
don't have the fallback path for other cases yet.
For this we need to rethink a bit our loads and stores so we can handle
depth/stencil copies correctly. Specifically, we are expected to do
different things depending on whether we are copying to a linear buffer
or to an image.
When copying depth/stencil to a buffer, we can only copy one aspect
at a time and the result should be tightly packed in the destination
buffer.
When copying depth/stencil to an image, we can copy one or both aspects,
and we need to write them in the corresponding aspect of the destination
image.
Because we can't do stores from the Z/S tile buffers in raster format,
we need to do image to buffer copies of these aspects using the a color
tile buffer and a compatible color format. However, when we are copying
to another image, since we need to write the channels in the corresponding
aspect of the destination image, we need to do this using by loading and
storing from an appropriate Z/S tile buffer.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
For some reason we were ignoring the extent to copy that was
passed in the region to copy and instead we were computing a
a region based on the image size and the selected miplevel.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Some of these may need additional work to work for real, but we should
be able to support them.
We also include some formats that are not supported for images, but
that we want to support for buffers, such as R32G32B32 for a vertex
buffer. In the future we might want to expand the format table to
specify which formats are supported for buffers.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
From the Vulkan spec:
"When an image view of a depth/stencil image is used as a
depth/stencil framebuffer attachment, the aspectMask is ignored
and both depth and stencil image subresources are used."
So in that scenario, we ignore the aspect mask on the view and go
check the actual format of the underlying image to decide if we
have depth or depth+stencil aspects.
This gets VkRunner's depth-buffer.shader_test to pass.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
For now this only implements a fast path using the tile buffer, so it
can only be used when clearing full images, but this is good enough
for VkRunner.
The implementation is a bit tricky because this command executes
inside a render pass, and yet, since we are using the tile buffer to
clear, this needs to go in its own job. This means that with this, we
need to be able to split a subpass into multiple jobs which creates
some issues.
For example, certain operations, such as the subpass load operation
(particularly if it is a clear) should only happen on the first job of
the subpass and subsequent jobs in the same subpass should always
load.
Similarly, we should not discard the last store on an attachment
unless we know it is the last job for the last subpass that uses the
attachment.
To handle these cases we add two new flags to the job, one to know if
the job is not the first in a subpass (is_subpass_continue) and
another one to know if a job is the last in a subpass
(is_subpass_finish).
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
This prevents a crash when the validation layers are enabled for some
of our ubo tests. Again, it seems that if some attachments are
missing, the validation layers remove some of the structs from the
pCreateInfo.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
For that we include the array_index when asking for a ubo/ssbo index
from the descriptor_map.
Until now, array_index was not included, but the descriptor_map took
into account the array_size. This had the advantage that you only need
a entry on the descriptor map, and the index was properly return.
But this make it complex to get back the set, binding and array_index
back from the ubo/ssbo binding. So it was more easy to just add
array_index. Somehow now the "key" on the descriptor map is the
combination of (set, binding, array_index).
Note that this also make sense as the vulkan api identifies each array
index as a descriptor, so for example, from spec,
VkDescriptorSetLayoutBinding:descriptorCount
"descriptorCount is the number of descriptors contained in the
binding, accessed in a shader as an array"
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Focused on getting the basic UBO and SSBO cases implemented. So no
dynamic offset, push contanst, samplers, and so on.
This include a initial implementation for CreatedescriptorPool,
CreateDescriptorSetLayout, AllocateDescriptorSets,
UpdateDescriptorSets, CreatePipelineLayout, and CmdBindDescriptorSets.
Also introduces lowering vulkan intrinsics. For now just
vulkan_resource_index.
We also introduce a descriptor_map, in this case for the ubos and
ssbos, used to assign a index for each set/binding combination, that
would be used when filling back the details of the ubo or ssbo on
other places (like QUNIFORM_UBO_ADDR or QUNIFORM_SSBO_OFFSET).
Note that at this point we don't need a bo for the descriptor pool, so
descriptor sets are not getting a piece of it. That would likely
change as we start to support more descriptor set types.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
The general idea is that we always emit from our dynamic state, and when
a particular piece of state is not dynamic, we just set our dynamic state
from the pipeline state, however, the implementation was quite confusing:
the mask of dynamic states flagged states that were not dynamic and some
places woud mix dirty flags and dynamic state flags. We also were not
updating the dynamic state mask in the command buffer, etc.
This patch, hopefully, simplifies all this and makes it less confusing,
starting by making the dynamic state mask flag dynamic states, fixing
the places where we would confuse dirty state flags with dynamic state
flags, making sure that our command buffer state is setup correctly
and that we only emit state when it is actually dirty.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
We were not computing viewport transform for static viewports provided with
the pipeline state. Also, we were not copying the transform into the command
buffer state when we bound the pipeline.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Just as with color copies, we only support tile buffer copies for now,
so we can only copy regions that start at offset (0,0).
Because the hardware doesn't support storing depth/stencil buffers to
raster format, we need to load and store our data to/from the tile
buffer as a compatible color format instead.
The Vulkan spec also has specific expectations regarding placement
of X8/S8 bits in 24-bit depth formats which don't match the hardware's
so these formats require specific work so we can swizzle channels
to match the Vulkan spec.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
This is only used when doing a clif/cle dump, but makes it far easier
to understand.
Most names are the same that the ones used at v3d (CL, tile_alloc,
TDSA), except those that on v3d were labelled as "resource", as right
now we don't have a resource uploader that englobes different
things. In fact, the good thing of not having that uploader is that
individual bos has a more accurate description of their purpose.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Otherwise we would lose updates relevant to subsequent subpasses in
the same renderpass that read or partially write the attachment.
The only scenario where we can safely do this is on the last subpass
that uses the attachment, so long as we don't need to emit the store
for the clear.
This also fixes a bug in the computation of the first subpass that
uses an attachment.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
This ignores stencil for now and focuses on depth testing without
support for early depth testing.
To implement this we need to start considering how many of our
framebuffer attachments are color attachments, since some of the
computations we use to determine tile sizes and binning configuration
depend on this.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
We don't need to do this, since we are just copying. Also, we are not
swapping on the store, so doing it on the load would be incorrect.
This gets the prime blit present path in WSI common to render R/B
channels correctly after blitting from the BGRA image to the linear
buffer for display output.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
When running on the real hardware we have two devices: the v3d render
node and the vc4 display node. We need the latter to allocate
winsys BOs for v3d to render into. Since exporting these BOs is
a privileged operation, we need to obtain the fd for this device
through the display server. For now we only support doing this through
the XCB DRI3 platform.
Also, do not duplicate or re-open the DRM devices when creating logical
devices. The simulator checks that the file descriptor is exactly
the same we used to initialize it when we created the physical device
and aborts if it sees a different fd number, even if it points to the
same device.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
Among other things, gets a constants output from a vs, used as input
to a fs, to get lowered and moved as a load const on the fs.
Heavily based on st_glsl_to_nir, already used by the v3d
driver. Slightly adapted to our needs, but there are still room for
customization.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
