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authorKarol Herbst <[email protected]>2017-08-25 19:22:03 +0200
committerIlia Mirkin <[email protected]>2019-02-07 21:51:45 -0500
commit6010d7b8e8bee1bcea2b329cf6d3b44c5fc3ca66 (patch)
treee6ef9c540c336e1b8ea36eff34cccc0baed1fe29 /src/gallium/docs
parent738346fa238e458fc82c5c6b5c8287a071140565 (diff)
gallium: add PIPE_CAP_MAX_VARYINGS
Some NVIDIA hardware can accept 128 fragment shader input components, but only have up to 124 varying-interpolated input components. We add a new cap to express this cleanly. For most drivers, this will have the same value as PIPE_SHADER_CAP_MAX_INPUTS for the fragment shader. Fixes KHR-GL45.limits.max_fragment_input_components Signed-off-by: Karol Herbst <[email protected]> [imirkin: rebased, improved docs/commit message] Signed-off-by: Ilia Mirkin <[email protected]> Acked-by: Rob Clark <[email protected]> Acked-by: Eric Anholt <[email protected]> Reviewed-by: Marek Olšák <[email protected]> Cc: 19.0 <[email protected]>
Diffstat (limited to 'src/gallium/docs')
-rw-r--r--src/gallium/docs/source/screen.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 8bf4a1ab54b..85ca5e1f5ce 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -488,6 +488,10 @@ The integer capabilities:
supports switching the format between sRGB and linear for a surface that is
used as destination in draw and blit calls.
* ``PIPE_CAP_NIR_COMPACT_ARRAYS``: True if the compiler backend supports NIR's compact array feature, for all shader stages.
+* ``PIPE_CAP_MAX_VARYINGS``: The maximum number of fragment shader
+ varyings. This will generally correspond to
+ ``PIPE_SHADER_CAP_MAX_INPUTS`` for the fragment shader, but in some
+ cases may be a smaller number.
.. _pipe_capf: