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081438ad39
Mali only supports perspective-correct varying interpolation in hardware, so we have to emulate noperspective with lowering in both the VS and FS. Both vulkan and opengl allow mismatched interpolation qualifiers between stages. Because we need all varyings that are noperspective in the FS to be lowered in the VS, we cannot rely on the interpolation qualifiers in the VS. Loading the set of noperspective varyings as a sysval allows the implementation to pass them as a compile-time constant when known statically, or a runtime push constant when not. Passing noperspective varyings dynamically has a performance cost with unnecessary branches and fmuls. This sysval is not hooked up yet in either panfrost or panvk, so shader compilation will fail. Signed-off-by: Benjamin Lee <benjamin.lee@collabora.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32127> |
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| clc | ||
| glsl | ||
| isaspec | ||
| libcl | ||
| nir | ||
| rust | ||
| spirv | ||
| builtin_types.py | ||
| builtin_types_c.py | ||
| builtin_types_h.py | ||
| glsl_types.c | ||
| glsl_types.h | ||
| meson.build | ||
| shader_enums.c | ||
| shader_enums.h | ||
| shader_info.h | ||