[Piglit] [PATCH] GL 3.2: Test validity of GL_DEPTH_CLAMP state

[Nicholas Mack]

---
 tests/spec/gl-3.2/CMakeLists.gl.txt |  1 +
 tests/spec/gl-3.2/depth-clamp.c     | 76 +++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 tests/spec/gl-3.2/depth-clamp.c

diff --git a/tests/spec/gl-3.2/CMakeLists.gl.txt b/tests/spec/gl-3.2/CMakeLists.gl.txt
index c4734c0..7b1b5e5 100644
--- a/tests/spec/gl-3.2/CMakeLists.gl.txt
+++ b/tests/spec/gl-3.2/CMakeLists.gl.txt
@@ -12,5 +12,6 @@ link_libraries (
 piglit_add_executable (gl-3.2-minmax minmax.c)
 piglit_add_executable (gl-3.2-draw-buffers-errors draw-buffers-errors.c)
 piglit_add_executable (gl-3.2-clear-no-buffers clear-no-buffers.c)
+piglit_add_executable (gl-3.2-depth-clamp depth-clamp.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/gl-3.2/depth-clamp.c b/tests/spec/gl-3.2/depth-clamp.c
new file mode 100644
index 0000000..5461995
--- /dev/null
+++ b/tests/spec/gl-3.2/depth-clamp.c
@@ -0,0 +1,76 @@
+/**
+ * Copyright © 2013 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/**
+ * Test that GL_DEPTH_CLAMP is a valid state
+ *
+ * Table 6.8 (Transformation state) of OpenGL 3.2 Core added DEPTH_CLAMP
+ *
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+	config.supports_gl_compat_version = 32;
+        config.supports_gl_core_version = 32;
+
+        config.window_visual = PIGLIT_GL_VISUAL_RGB |
+				PIGLIT_GL_VISUAL_DOUBLE |
+				PIGLIT_GL_VISUAL_DEPTH |
+				PIGLIT_GL_VISUAL_STENCIL;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+void
+piglit_init(int argc, char **argv)
+{
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	bool pass = true;
+
+	if(glIsEnabled(GL_DEPTH_CLAMP)) {
+		printf("GL_DEPTH_CLAMP was not initialized to FALSE\n");
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+	glEnable(GL_DEPTH_CLAMP);
+	if(!glIsEnabled(GL_DEPTH_CLAMP)) {
+		printf("GL_DEPTH_CLAMP was not enabled properly\n");
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+	glDisable(GL_DEPTH_CLAMP);
+	if(glIsEnabled(GL_DEPTH_CLAMP)) {
+		printf("GL_DEPTH_CLAMP was not disabled properly\n");
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
-- 
1.8.3.1