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authorIago Toral Quiroga <itoral@igalia.com>2019-07-09 09:15:02 +0200
committerIago Toral Quiroga <itoral@igalia.com>2019-07-12 09:16:38 +0200
commitb0eec9e27d753af11f82d64bd329234a3291339c (patch)
tree4ce9e6cbd0e4b8d70d9a6f247b28e67997f4e0f4
parent6af1bdefa975864a62a043a5ec1919c415dc9c4d (diff)
nir: add a new v3d-specific intrinsic for tile buffer color reads
This is intended to be used, for example, with OpenGL logic operations. It takes a render target as source and a sample index in the base index for MSAA color reads. v2: drop the CAN_ELIMINATE and CAN_REORDER flags (Eric). Reviewed-by: Eric Anholt <eric@anholt.net>
-rw-r--r--src/compiler/nir/nir_intrinsics.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_intrinsics.py b/src/compiler/nir/nir_intrinsics.py
index 0fd8a30eb4d..a37297ca440 100644
--- a/src/compiler/nir/nir_intrinsics.py
+++ b/src/compiler/nir/nir_intrinsics.py
@@ -776,3 +776,12 @@ intrinsic("ssbo_atomic_comp_swap_ir3", src_comp=[1, 1, 1, 1, 1], dest_comp=1)
# src[] = { value }
store("raw_output_pan", 1, [])
load("raw_output_pan", 0, [], [CAN_ELIMINATE, CAN_REORDER])
+
+# V3D-specific instrinc for tile buffer color reads.
+#
+# The hardware requires that we read the samples and components of a pixel
+# in order, so we cannot eliminate or remove any loads in a sequence.
+#
+# src[] = { render_target }
+# BASE = sample index
+load("tlb_color_v3d", 1, [BASE, COMPONENT], [])