[Piglit] [PATCH v3] GL 3.2: Test validity of GL_DEPTH_CLAMP state

[Nicholas Mack]

diff --git a/tests/spec/CMakeLists.txt b/tests/spec/CMakeLists.txt
index 96987cf..327780f 100644
--- a/tests/spec/CMakeLists.txt
+++ b/tests/spec/CMakeLists.txt
@@ -1,6 +1,7 @@
 add_subdirectory (amd_performance_monitor)
 add_subdirectory (arb_color_buffer_float)
 add_subdirectory (arb_debug_output)
+add_subdirectory (arb_depth_clamp)
 add_subdirectory (arb_draw_instanced)
 add_subdirectory (arb_es2_compatibility)
 add_subdirectory (arb_framebuffer_object)
diff --git a/tests/spec/arb_depth_clamp/CMakeLists.gl.txt b/tests/spec/arb_depth_clamp/CMakeLists.gl.txt
new file mode 100644
index 0000000..f3a6ee4
--- /dev/null
+++ b/tests/spec/arb_depth_clamp/CMakeLists.gl.txt
@@ -0,0 +1,14 @@
+include_directories(
+	${GLEXT_INCLUDE_DIR}
+	${OPENGL_INCLUDE_PATH}
+)
+
+link_libraries (
+	piglitutil_${piglit_target_api}
+	${OPENGL_gl_LIBRARY}
+	${OPENGL_glu_LIBRARY}
+)
+
+piglit_add_executable (gl-arb-depth-clamp depth-clamp.c)
+
+# vim: ft=cmake:
diff --git a/tests/spec/arb_depth_clamp/CMakeLists.txt b/tests/spec/arb_depth_clamp/CMakeLists.txt
new file mode 100644
index 0000000..4a012b9
--- /dev/null
+++ b/tests/spec/arb_depth_clamp/CMakeLists.txt
@@ -0,0 +1 @@
+piglit_include_target_api()
\ No newline at end of file
diff --git a/tests/spec/arb_depth_clamp/depth-clamp.c b/tests/spec/arb_depth_clamp/depth-clamp.c
new file mode 100644
index 0000000..4a459fa
--- /dev/null
+++ b/tests/spec/arb_depth_clamp/depth-clamp.c
@@ -0,0 +1,132 @@
+/**
+ * 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;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass = true;
+	GLint i;
+	GLfloat f;
+	GLboolean b;
+	GLdouble d;
+
+	/* Check that GL_DEPTH_CLAMP was initialized to 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;
+
+	/* Test that GL_DEPTH_CLAMP is enable/disabled correctly */
+	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;
+
+	/* Test that GL_DEPTH_CLAMP disabled is returned from glGet calls */
+	glGetIntegerv(GL_DEPTH_CLAMP, &i);
+	if(i != 0) {
+		printf("i expected to be 0, but returned %d\n", i);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	glGetFloatv(GL_DEPTH_CLAMP, &f);
+	if(f != 0.0f) {
+		printf("f expected to be 0.0, but returned %f\n", f);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	glGetBooleanv(GL_DEPTH_CLAMP, &b);
+	if(b != GL_FALSE) {
+		printf("b expected to be 0, but returned %d\n", (int)b);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	glGetDoublev(GL_DEPTH_CLAMP, &d);
+	if(d != 0.0) {
+		printf("d expected to be 0.0, but returned %f\n", d);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+	/* Test that GL_DEPTH_CLAMP enabled is returned from glGet calls */
+	glEnable(GL_DEPTH_CLAMP);
+
+	glGetIntegerv(GL_DEPTH_CLAMP, &i);
+	if(i != 1) {
+		printf("i expected to be 1, but returned %d\n", i);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	glGetFloatv(GL_DEPTH_CLAMP, &f);
+	if(f != 1.0f) {
+		printf("f expected to be 1.0, but returned %f\n", f);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	glGetBooleanv(GL_DEPTH_CLAMP, &b);
+	if(b != GL_TRUE) {
+		printf("b expected to be 1, but returned %d\n", (int)b);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+	glGetDoublev(GL_DEPTH_CLAMP, &d);
+	if(d != 1.0) {
+		printf("d expected to be 1.0, but returned %f\n", d);
+		pass = false;
+	}
+	pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
+
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	return PIGLIT_FAIL;
+}
-- 
1.8.3.1