From 672a191d2a8e4a0d66ff6e88091238c2e83a5ef5 Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Sun, 19 Jul 2015 21:23:46 +0200
Subject: [PATCH] Improve error message when Cg support is not enabled

---
 panda/src/glstuff/glGraphicsStateGuardian_src.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
index db342f423a..e05e1e2d8e 100644
--- a/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
+++ b/panda/src/glstuff/glGraphicsStateGuardian_src.cxx
@@ -4828,8 +4828,8 @@ prepare_shader(Shader *se) {
       return NULL;
     }
 
-#if defined(HAVE_CG) && !defined(OPENGLES)
   case Shader::SL_Cg:
+#if defined(HAVE_CG) && !defined(OPENGLES)
     if (_supports_basic_shaders) {
       result = new CLP(CgShaderContext)(this, se);
       break;
@@ -4838,6 +4838,10 @@ prepare_shader(Shader *se) {
         << "Tried to load Cg shader, but basic shaders not supported.\n";
       return NULL;
     }
+#elif defined(OPENGLES)
+    GLCAT.error()
+      << "Tried to load Cg shader, but Cg support is not available for OpenGL ES.\n";
+    return NULL;
 #else
     GLCAT.error()
       << "Tried to load Cg shader, but Cg support not compiled in.\n";