From 47dcaddad36ef892a65aa541c9768be45b83afde Mon Sep 17 00:00:00 2001
From: Ethan Lee <flibitijibibo@flibitijibibo.com>
Date: Tue, 29 Oct 2019 16:31:56 -0400
Subject: [PATCH] Fix USAGE_FOG for glsles, index values > 0

---
 profiles/mojoshader_profile_glsl.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/profiles/mojoshader_profile_glsl.c b/profiles/mojoshader_profile_glsl.c
index dca623bf..9142f0e3 100644
--- a/profiles/mojoshader_profile_glsl.c
+++ b/profiles/mojoshader_profile_glsl.c
@@ -951,7 +951,14 @@ void emit_GLSL_attribute(Context *ctx, RegisterType regtype, int regnum,
                     } // else if
                     break;
                 case MOJOSHADER_USAGE_FOG:
-                    usage_str = "gl_FogFragCoord";
+#if SUPPORT_PROFILE_GLSLES
+                    if (support_glsles(ctx))
+                        break; // GLSL ES does not have gl_FogFragCoord
+#endif
+                    if (index == 0)
+                    {
+                        usage_str = "gl_FogFragCoord";
+                    } // if
                     break;
                 case MOJOSHADER_USAGE_TEXCOORD:
 #if SUPPORT_PROFILE_GLSLES