OpenCL C defines work-item functions to return a scalar for a particular
dimension. This is a really annoying papercut, and is not what you want for
either 1D or 3D dispatches. In both cases, it's nicer to get vectors. For
syntax, we opt to define uint3 "magic globals" for each work-item vector. This
matches the GLSL convention, although retaining OpenCL names. For example,
`gl_GlobalInvocationID.xy` is expressed here as `cl_global_id.xy`. That is much
nicer than standard OpenCL C's syntax `(uint2)(get_global_id(0),
get_global_id(1))`.
We define the obvious mappings for each relevant function in "Work-Item
Functions" in the OpenCL C specification.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33099>
In C, NDEBUG allows disabling the assert macro, let's follow this
behaviour.
Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Eric R. Smith <eric.smith@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32939>
We emulate roundf and llroundf for compatibility.
Signed-off-by: Mary Guillemard <mary.guillemard@collabora.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Eric R. Smith <eric.smith@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32939>
this is helpful to indirect draw munging code, which applies to at least 3
stacks using driver CL stuff (current Intel, shortterm Asahi, mediumterm
Panfrost)
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32529>
In an attempt to make OpenCL shaders more "batteries included", start building
up a standard library. Based on libagx.h.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32529>
