improve GLES jumptables

in the common case this saves one instructions per jump
(which will help with the i-cache).

this change also gets rid of the "use slow tls" option,
which was useless. So at least now architectures that don't have
assembly bindings will perform much better.

Change-Id: I31be6c06ad2136b50ef3a1ac14682d7812ad40d2
diff --git a/opengl/libs/EGL/getProcAddress.cpp b/opengl/libs/EGL/getProcAddress.cpp
index c160aa0..add2a79 100644
--- a/opengl/libs/EGL/getProcAddress.cpp
+++ b/opengl/libs/EGL/getProcAddress.cpp
@@ -34,9 +34,7 @@
 #undef GL_EXTENSION_LIST
 #undef GET_TLS
 
-#if USE_FAST_TLS_KEY
-
-    #if defined(__arm__)
+#if defined(__arm__)
 
     #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n"
 
@@ -58,7 +56,7 @@
             :                                                   \
             );
 
-    #elif defined(__mips__)
+#elif defined(__mips__)
 
         #define API_ENTRY(_api) __attribute__((noinline)) _api
 
@@ -88,27 +86,21 @@
                                           ext.extensions[_api]))    \
                 :                                                   \
             );
+#endif
 
-    #else
-        #error Unsupported architecture
-    #endif
-
+#if defined(CALL_GL_EXTENSION_API)
     #define GL_EXTENSION_NAME(_n)   __glExtFwd##_n
 
     #define GL_EXTENSION(_n)                         \
         void API_ENTRY(GL_EXTENSION_NAME(_n))() {    \
             CALL_GL_EXTENSION_API(_n);               \
         }
-
-
 #else
+        #define GL_EXTENSION_NAME(_n) NULL
 
-    #define GL_EXTENSION_NAME(_n) NULL
+        #define GL_EXTENSION(_n)
 
-    #define GL_EXTENSION(_n)
-
-    #warning "eglGetProcAddress() partially supported"
-
+        #warning "eglGetProcAddress() partially supported"
 #endif