Added the immutable parameter.

TRAC #18730
Signed-off-by: Daniel Koch
Author: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@856 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/libGLESv2.cpp b/src/libGLESv2/libGLESv2.cpp
index 3806161..ce3cb43 100644
--- a/src/libGLESv2/libGLESv2.cpp
+++ b/src/libGLESv2/libGLESv2.cpp
@@ -3338,6 +3338,9 @@
               case GL_TEXTURE_WRAP_T:
                 *params = (GLfloat)texture->getWrapT();
                 break;
+              case GL_TEXTURE_IMMUTABLE_FORMAT_EXT:
+                *params = (GLfloat)(texture->isImmutable() ? GL_TRUE : GL_FALSE);
+                break;
               default:
                 return error(GL_INVALID_ENUM);
             }
@@ -3387,6 +3390,9 @@
               case GL_TEXTURE_WRAP_T:
                 *params = texture->getWrapT();
                 break;
+              case GL_TEXTURE_IMMUTABLE_FORMAT_EXT:
+                *params = texture->isImmutable() ? GL_TRUE : GL_FALSE;
+                break;
               default:
                 return error(GL_INVALID_ENUM);
             }