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nir: Add handle/index-based image intrinsics

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand
2018-08-16 15:11:44 -05:00
parent 3942943819
commit 0de003be03
3 changed files with 82 additions and 20 deletions
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50
src/compiler/nir/nir_intrinsics.py
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@@ -101,6 +101,14 @@ REDUCTION_OP = "NIR_INTRINSIC_REDUCTION_OP"
CLUSTER_SIZE = "NIR_INTRINSIC_CLUSTER_SIZE"
# Parameter index for a load_param intrinsic
PARAM_IDX = "NIR_INTRINSIC_PARAM_IDX"
# Image dimensionality for image intrinsics
IMAGE_DIM = "NIR_INTRINSIC_IMAGE_DIM"
# Non-zero if we are accessing an array image
IMAGE_ARRAY = "NIR_INTRINSIC_IMAGE_ARRAY"
# Access qualifiers for image intrinsics
ACCESS = "NIR_INTRINSIC_ACCESS"
# Image format for image intrinsics
FORMAT = "NIR_INTRINSIC_FORMAT"
#
# Possible flags:
@@ -285,10 +293,12 @@ atomic3("atomic_counter_comp_swap")
# Image load, store and atomic intrinsics.
#
# All image intrinsics take an image target passed as a nir_variable. The
# variable is passed in using a chain of nir_deref_instr with as the first
# source of the image intrinsic. Image variables contain a number of memory
# and layout qualifiers that influence the semantics of the intrinsic.
# All image intrinsics come in two versions. One which take an image target
# passed as a deref chain as the first source and one which takes an index or
# handle as the first source. In the first version, the image variable
# contains the memory and layout qualifiers that influence the semantics of
# the intrinsic. In the second, the image format and access qualifiers are
# provided as constant indices.
#
# All image intrinsics take a four-coordinate vector and a sample index as
# 2nd and 3rd sources, determining the location within the image that will be
@@ -297,20 +307,24 @@ atomic3("atomic_counter_comp_swap")
# argument with the value to be written, and image atomic operations take
# either one or two additional scalar arguments with the same meaning as in
# the ARB_shader_image_load_store specification.
intrinsic("image_deref_load", src_comp=[1, 4, 1], dest_comp=0,
flags=[CAN_ELIMINATE])
intrinsic("image_deref_store", src_comp=[1, 4, 1, 0])
intrinsic("image_deref_atomic_add", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_min", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_max", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_and", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_or", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_xor", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_exchange", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_comp_swap", src_comp=[1, 4, 1, 1, 1], dest_comp=1)
intrinsic("image_deref_atomic_fadd", src_comp=[1, 4, 1, 1], dest_comp=1)
intrinsic("image_deref_size", src_comp=[1], dest_comp=0, flags=[CAN_ELIMINATE, CAN_REORDER])
intrinsic("image_deref_samples", src_comp=[1], dest_comp=1, flags=[CAN_ELIMINATE, CAN_REORDER])
def image(name, src_comp=[], **kwargs):
intrinsic("image_deref_" + name, src_comp=[1] + src_comp, **kwargs)
intrinsic("image_" + name, src_comp=[1] + src_comp,
indices=[IMAGE_DIM, IMAGE_ARRAY, FORMAT, ACCESS], **kwargs)
image("load", src_comp=[4, 1], dest_comp=0, flags=[CAN_ELIMINATE])
image("store", src_comp=[4, 1, 0])
image("atomic_add", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_min", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_max", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_and", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_or", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_xor", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_exchange", src_comp=[4, 1, 1], dest_comp=1)
image("atomic_comp_swap", src_comp=[4, 1, 1, 1], dest_comp=1)
image("atomic_fadd", src_comp=[1, 4, 1, 1], dest_comp=1)
image("size", dest_comp=0, flags=[CAN_ELIMINATE, CAN_REORDER])
image("samples", dest_comp=1, flags=[CAN_ELIMINATE, CAN_REORDER])
# Intel-specific query for loading from the brw_image_param struct passed
# into the shader as a uniform. The variable is a deref to the image