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nir: add load_texture_rect_scaling

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Will be used in a different form of lower_rect tex lowering.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8898>
This commit is contained in:
Christian Gmeiner
2020-11-13 10:35:38 +01:00
committed by Marge Bot
parent 765097eac4
commit b0e23c92b3
1 changed files with 7 additions and 0 deletions
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7
src/compiler/nir/nir_intrinsics.py
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@@ -848,6 +848,13 @@ intrinsic("load_sample_pos_from_id", src_comp=[1], dest_comp=2,
# Loads what I believe is the primitive size, for scaling ij to pixel size:
intrinsic("load_size_ir3", dest_comp=1, flags=[CAN_ELIMINATE, CAN_REORDER])
# Load texture scaling values:
#
# Takes a sampler # and returns 1/size values for multiplying to normalize
# texture coordinates. Used for lowering rect textures.
intrinsic("load_texture_rect_scaling", src_comp=[1], dest_comp=2,
flags=[CAN_ELIMINATE, CAN_REORDER])
# Fragment shader input interpolation delta intrinsic.
#
# For hw where fragment shader input interpolation is handled in shader, the