[Piglit] [PATCH 1/2] Add a piglit_require_GLSL_version(int version) helper function.

[Kenneth Graunke]

Many tests want to check for a specific GLSL version.  This helper
function makes that really easy: piglit_require_GLSL_version(130);
---
 tests/util/piglit-shader-gl.c |   18 ++++++++++++++++++
 tests/util/piglit-util.h      |    7 +++++++
 2 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/tests/util/piglit-shader-gl.c b/tests/util/piglit-shader-gl.c
index 496e8dc..352ac8f 100644
--- a/tests/util/piglit-shader-gl.c
+++ b/tests/util/piglit-shader-gl.c
@@ -205,6 +205,24 @@ piglit_require_GLSL(void)
 }
 
 void
+piglit_require_GLSL_version(int version)
+{
+	bool es;
+	int major, minor;
+
+	piglit_require_GLSL();
+
+	piglit_get_glsl_version(&es, &major, &minor);
+
+	if (es || 100 * major + minor < version) {
+		printf("GLSL %d.%d not supported.\n",
+		       version / 100, version % 100);
+		piglit_report_result(PIGLIT_SKIP);
+		exit(1);
+	}
+}
+
+void
 piglit_require_vertex_shader(void)
 {
 	if (GLEW_VERSION_2_0) {
diff --git a/tests/util/piglit-util.h b/tests/util/piglit-util.h
index da4c844..78874ee 100644
--- a/tests/util/piglit-util.h
+++ b/tests/util/piglit-util.h
@@ -311,6 +311,13 @@ extern PFNGLUNIFORMMATRIX4X3FVPROC piglit_UniformMatrix4x3fv;
 #endif
 /*@}*/
 
+/**
+ * Require a specific version of GLSL.
+ *
+ * \param version Integer version, for example 130
+ */
+extern void piglit_require_GLSL_version(int version);
+/** Require any version of GLSL */
 extern void piglit_require_GLSL(void);
 extern void piglit_require_fragment_shader(void);
 extern void piglit_require_vertex_shader(void);
-- 
1.7.6