Move extensions checking entirely to piglit-util-gl-common.c

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

tests/util/piglit-dispatch.c

@@ -62,15 +62,6 @@ static piglit_error_function_ptr get_proc_address_failure = NULL;
  */
 static int gl_version = 0;
 
-/**
- * The GL extension string returned by glGetString(GL_EXTENSIONS).
- *
- * We cache this here because calling glGetString is prohibited
- * between glBegin and glEnd, and to avoid the inefficiency of
- * redundant glGetString queries.
- */
-static const char *gl_extensions = NULL;
-
 /**
  * True if piglit_dispatch_init has been called.
  */
@@ -134,7 +125,7 @@ check_version(int required_version)
 static inline bool
 check_extension(const char *name)
 {
-	return piglit_is_extension_in_string(gl_extensions, name);
+	return piglit_is_extension_supported(name);
 }
 
 #include "generated_dispatch.c"
@@ -195,7 +186,6 @@ piglit_dispatch_init(piglit_dispatch_api api,
 	 * check_extension().
 	 */
 	gl_version = piglit_get_gl_version();
-	gl_extensions = (const char *) glGetString(GL_EXTENSIONS);
 }
 
 /**

tests/util/piglit-util-gl-common.c

@@ -25,6 +25,15 @@
 #include <ctype.h>
 
 
+/**
+ * The GL extension string returned by glGetString(GL_EXTENSIONS).
+ *
+ * We cache this here because calling glGetString is prohibited
+ * between glBegin and glEnd, and to avoid the inefficiency of
+ * redundant glGetString queries.
+ */
+static const char *gl_extensions = NULL;
+
 bool piglit_is_gles()
 {
 	const char *version_string = (const char *) glGetString(GL_VERSION);
@@ -55,10 +64,11 @@ int piglit_get_gl_version()
 
 bool piglit_is_extension_supported(const char *name)
 {
-	const char *const extensions =
-		(const char*) glGetString(GL_EXTENSIONS);
+	if (gl_extensions == NULL) {
+		gl_extensions = (const char *) glGetString(GL_EXTENSIONS);
+	}
 
-	return piglit_is_extension_in_string(extensions, name);
+	return piglit_is_extension_in_string(gl_extensions, name);
 }
 
 void piglit_require_gl_version(int required_version_times_10)