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Define a new STORE opcode with a role dual to the LOAD opcode, and add
flags to specify that a shader resource is intended for writing.
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Normal resource access (e.g. the LOAD TGSI opcode) is supposed to
perform a series of conversions to turn the texture data as it's found
in memory into the target data type.
In compute programs it's often the case that we only want to access
the raw bits as they're stored in some buffer object, and any kind of
channel conversion and scaling is harmful or inefficient, especially
in implementations that lack proper hardware support to take care of
it -- in those cases the conversion has to be implemented in software
and it's likely to result in a performance hit even if the pipe_buffer
and declaration data types are set up in a way that would just pass
the data through.
Add a declaration flag that marks a resource as typeless. No channel
conversion will be performed in that case, and the X coordinate of the
address vector will be interpreted in byte units instead of elements
for obvious reasons.
This is similar to D3D11's ByteAddressBuffer, and will be used to
implement OpenCL's constant arguments. The remaining four compute
memory spaces can also be understood as raw resources.
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This texture type was already referred to by the documentation but it
was never defined. Define it as 0 to match the pipe_texture_target
enumeration values.
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Move Interpolate, Centroid and CylindricalWrap from tgsi_declaration
to a separate token -- they only make sense for FS inputs and we need
room for other flags in the top-level declaration token.
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This commit splits the current concept of resource into "sampler
views" and "shader resources":
"Sampler views" are textures or buffers that are bound to a given
shader stage and can be read from in conjunction with a sampler
object. They are analogous to OpenGL texture objects or Direct3D
SRVs.
"Shader resources" are textures or buffers that can be read and
written from a shader. There's no support for floating point
coordinates, address wrap modes or filtering, and, unlike sampler
views, shader resources are global for the whole graphics pipeline.
They are analogous to OpenGL image objects (as in
ARB_shader_image_load_store) or Direct3D UAVs.
Most hardware is likely to implement shader resources and sampler
views as separate objects, so, having the distinction at the API level
simplifies things slightly for the driver.
This patch introduces the SVIEW register file with a declaration token
and syntax analogous to the already existing RES register file. After
this change, the SAMPLE_* opcodes no longer accept a resource as
input, but rather a SVIEW object. To preserve the functionality of
reading from a sampler view with integer coordinates, the
SAMPLE_I(_MS) opcodes are introduced which are similar to LOAD(_MS)
but take a SVIEW register instead of a RES register as argument.
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Define an interface that exposes the minimal functionality required to
implement some of the popular compute APIs. This commit adds entry
points to set the grid layout and other state required to keep track
of the usual address spaces employed in compute APIs, to bind a
compute program, and execute it on the device.
Reviewed-by: Marek Olšák <[email protected]>
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egltri_screen works correctly!
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Reviewed-by: José Fonseca <[email protected]>
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v2: Enabled CEIL on Cayman too.
Signed-off-by: Kai Wasserbäch <[email protected]>
Reviewed-by: Tom Stellard <[email protected]>
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Reimplemented by Olivier Galibert <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
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It is no longer used.
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Signed-off-by: Vadim Girlin <[email protected]>
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Signed-off-by: Vadim Girlin <[email protected]>
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Add support for IABS, NOT, AND, XOR, OR, UADD, UDIV, IDIV, MOD, UMOD, INEG,
I2F, U2F, F2U, F2I, USEQ, USGE, USLT, USNE, ISGE, ISLT, ROUND, MIN, MAX,
IMIN, IMAX, UMIN, UMAX
Signed-off-by: Vadim Girlin <[email protected]>
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Signed-off-by: Vadim Girlin <[email protected]>
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Signed-off-by: Vadim Girlin <[email protected]>
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Signed-off-by: Vadim Girlin <[email protected]>
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Signed-off-by: Vadim Girlin <[email protected]>
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Set the input registers as live-in for entry basic block.
Signed-off-by: Vadim Girlin <[email protected]>
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Signed-off-by: Vadim Girlin <[email protected]>
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Swap source operands.
Signed-off-by: Vadim Girlin <[email protected]>
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Replacing "float equal to 1.0f" with "int not equal to 0".
This should help for further optimization of boolean computations.
Signed-off-by: Vadim Girlin <[email protected]>
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We're using float as default type, so basically for every instruction that
wants other types for dst/src operands we need to perform the bitcast
to/from default float. Currently bitcast produces no-op MOV instruction,
will be eliminated later.
Signed-off-by: Vadim Girlin <[email protected]>
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https://bugs.freedesktop.org/show_bug.cgi?id=49567
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These weren't being used at all and they were causing build failures
when LLVM was built with NDEBUG defined and mesa was not.
https://bugs.freedesktop.org/show_bug.cgi?id=49110
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