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| author | Dave Airlie <[email protected]> | 2019-10-09 13:07:04 +1000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2019-10-11 00:32:15 +0000 |
| commit | 0c09df52e10f0339973f44cef68ff5e237720c8a (patch) | |
| tree | 73c16a10be2214f4762ee734b63b356f0d2095ce /src/gallium/docs/source/screen.rst | |
| parent | 1e65757f4e8283f136924f7594485ea4440c7e78 (diff) | |
gallium: add a a new cap for changing the TGSI TG4 instruction encoding
Accessing the TG4 component via immediates in the llvmpipe backend is quite
messy (like really messy). Roland suggested we change the instruction encoding,
so introduce a cap to allow the component to be selected to be store in the
sampler swizzle, which should be otherwise unused.
I could probably switch all drivers over, but virgl would need some work that
I'd prefer not to rush it.
Signed-off-by: Dave Airlie <[email protected]>
Reviewed-by: Roland Scheidegger <[email protected]>
Diffstat (limited to 'src/gallium/docs/source/screen.rst')
| -rw-r--r-- | src/gallium/docs/source/screen.rst | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 9acab6fafc5..1c402b03391 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -558,6 +558,7 @@ The integer capabilities: * ``PIPE_CAP_GL_SPIRV``: True if the driver supports ARB_gl_spirv extension. * ``PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS``: True if the driver supports Variable Pointers in SPIR-V shaders. * ``PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION``: True if driver supports demote keyword in GLSL programs. +* ``PIPE_CAP_TGSI_TG4_COMPONENT_IN_SWIZZLE``: True if driver wants the TG4 component encoded in sampler swizzle rather than as a separate source. .. _pipe_capf: |