From: Icecream95 <ixn@keemail.me>
Date: Mon, 11 May 2020 22:16:31 +0000 (+1200)
Subject: pan/midgard: Fix old style shadows
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d1290e79489fb645fc73ebb365b684b7797f97b2;p=mesa.git

pan/midgard: Fix old style shadows

This fixes the sky being red in OpenMW, as well as some of the Mesa
demos using shadows (shadowtex, shadow_sampler).

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4997>
---

diff --git a/src/panfrost/midgard/midgard_compile.c b/src/panfrost/midgard/midgard_compile.c
index 58f0160b564..8ec29cf6bbe 100644
--- a/src/panfrost/midgard/midgard_compile.c
+++ b/src/panfrost/midgard/midgard_compile.c
@@ -1759,6 +1759,10 @@ emit_texop_native(compiler_context *ctx, nir_tex_instr *instr,
                 }
         };
 
+        if (instr->is_shadow && !instr->is_new_style_shadow)
+           for (int i = 0; i < 4; ++i)
+              ins.swizzle[0][i] = COMPONENT_X;
+
         /* We may need a temporary for the coordinate */
 
         bool needs_temp_coord =