From 1dd513727db238066f65240cc65f83ed0aaa6f4e Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Thu, 25 May 2023 13:22:51 -0400 Subject: [PATCH] agx: Handle centroid and sample interpolation Works great now that all the infrastructure is wired up. Signed-off-by: Alyssa Rosenzweig Part-of: --- src/asahi/compiler/agx_compile.c | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/src/asahi/compiler/agx_compile.c b/src/asahi/compiler/agx_compile.c index b12ec1f88fb..62b58c2a729 100644 --- a/src/asahi/compiler/agx_compile.c +++ b/src/asahi/compiler/agx_compile.c @@ -365,6 +365,25 @@ agx_emit_load_vary_flat(agx_builder *b, agx_index dest, agx_emit_collect_to(b, dest, components, dests); } +static enum agx_interpolation +agx_interp_for_bary(nir_intrinsic_instr *bary, agx_index *sample_index) +{ + switch (bary->intrinsic) { + case nir_intrinsic_load_barycentric_pixel: + return AGX_INTERPOLATION_CENTER; + + case nir_intrinsic_load_barycentric_centroid: + return AGX_INTERPOLATION_CENTROID; + + case nir_intrinsic_load_barycentric_at_sample: + *sample_index = agx_src_index(&bary->src[0]); + return AGX_INTERPOLATION_SAMPLE; + + default: + unreachable("should have been lowered"); + } +} + static void agx_emit_load_vary(agx_builder *b, agx_index dest, nir_intrinsic_instr *instr) { @@ -373,11 +392,8 @@ agx_emit_load_vary(agx_builder *b, agx_index dest, nir_intrinsic_instr *instr) assert(components >= 1 && components <= 4); - /* TODO: Interpolation modes */ - assert(bary != NULL); - assert(bary->intrinsic == nir_intrinsic_load_barycentric_pixel); - enum agx_interpolation interp = AGX_INTERPOLATION_CENTER; agx_index sample_index = agx_zero(); + enum agx_interpolation interp = agx_interp_for_bary(bary, &sample_index); bool perspective = nir_intrinsic_interp_mode(bary) != INTERP_MODE_NOPERSPECTIVE;