From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Thu, 21 Jul 2016 19:01:46 +0000 (-0700)
Subject: spirv/nir: Handle texture projectors
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=71202352c8d9f87d7b6f06bece67771d7cf641a4;p=mesa.git

spirv/nir: Handle texture projectors

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-dev@lists.freedesktop.org>
---

diff --git a/src/compiler/spirv/spirv_to_nir.c b/src/compiler/spirv/spirv_to_nir.c
index 6ebf951ab47..27d2b4239bb 100644
--- a/src/compiler/spirv/spirv_to_nir.c
+++ b/src/compiler/spirv/spirv_to_nir.c
@@ -1442,6 +1442,21 @@ vtn_handle_texture(struct vtn_builder *b, SpvOp opcode,
       break;
    }
 
+   switch (opcode) {
+   case SpvOpImageSampleProjImplicitLod:
+   case SpvOpImageSampleProjExplicitLod:
+   case SpvOpImageSampleProjDrefImplicitLod:
+   case SpvOpImageSampleProjDrefExplicitLod:
+      /* These have the projector as the last coordinate component */
+      p->src = nir_src_for_ssa(nir_channel(&b->nb, coord, coord_components));
+      p->src_type = nir_tex_src_projector;
+      p++;
+      break;
+
+   default:
+      break;
+   }
+
    unsigned gather_component = 0;
    switch (opcode) {
    case SpvOpImageSampleDrefImplicitLod: