[Piglit] [PATCH] Add test case to verify glClearBuffer support in display lists

[Anuj Phogat]

it tests the display lists with glClearBufferfv() in GL_COMPILE and
GL_COMPILE_AND_EXECUTE mode

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
---
 This is an updated patch based on review comments by Ian Romanick.
 Let me know if i can still make it better.

 tests/all.tests                                   |    1 +
 tests/spec/gl-3.0/api/CMakeLists.gl.txt           |    1 +
 tests/spec/gl-3.0/api/clearbuffer-display-lists.c |  120 +++++++++++++++++++++
 3 files changed, 122 insertions(+), 0 deletions(-)
 create mode 100644 tests/spec/gl-3.0/api/clearbuffer-display-lists.c

diff --git a/tests/all.tests b/tests/all.tests
index b713de0..86b0a46 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -806,6 +806,7 @@ spec['!OpenGL 3.0'] = gl30
 add_concurrent_test(gl30, 'bindfragdata-invalid-parameters')
 add_concurrent_test(gl30, 'clearbuffer-depth')
 add_concurrent_test(gl30, 'clearbuffer-depth-stencil')
+add_concurrent_test(gl30, 'clearbuffer-display-lists')
 add_concurrent_test(gl30, 'clearbuffer-invalid-drawbuffer')
 add_concurrent_test(gl30, 'clearbuffer-invalid-buffer')
 add_concurrent_test(gl30, 'clearbuffer-stencil')
diff --git a/tests/spec/gl-3.0/api/CMakeLists.gl.txt b/tests/spec/gl-3.0/api/CMakeLists.gl.txt
index 466ffeb..3ae18e3 100644
--- a/tests/spec/gl-3.0/api/CMakeLists.gl.txt
+++ b/tests/spec/gl-3.0/api/CMakeLists.gl.txt
@@ -15,6 +15,7 @@ link_libraries (
 add_executable (bindfragdata-invalid-parameters bindfragdata-invalid-parameters.c)
 add_executable (clearbuffer-depth clearbuffer-common.c clearbuffer-depth.c)
 add_executable (clearbuffer-depth-stencil clearbuffer-common.c clearbuffer-depth-stencil.c)
+add_executable (clearbuffer-display-lists clearbuffer-common.c clearbuffer-display-lists.c)
 add_executable (clearbuffer-invalid-drawbuffer clearbuffer-invalid-drawbuffer.c)
 add_executable (clearbuffer-invalid-buffer clearbuffer-invalid-buffer.c)
 add_executable (clearbuffer-stencil clearbuffer-common.c clearbuffer-stencil.c)
diff --git a/tests/spec/gl-3.0/api/clearbuffer-display-lists.c b/tests/spec/gl-3.0/api/clearbuffer-display-lists.c
new file mode 100644
index 0000000..e4874fa
--- /dev/null
+++ b/tests/spec/gl-3.0/api/clearbuffer-display-lists.c
@@ -0,0 +1,120 @@
+/* Copyright © 2011 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.
+ */
+
+/**
+ * \file clearbuffer-display-list.c
+ * Verify glClearBuffer functions are supported in display lists
+ *
+ * This test works by generating display lists with glClearBufferfv() in
+ * GL_COMPILE, GL_COMPILE_AND_EXECUTE modes and attempting to clear the color
+ * buffer using display lists
+ *
+ * \author Anuj Phogat
+ */
+
+#include "piglit-util.h"
+#include "clearbuffer-common.h"
+
+void piglit_init(int argc, char **argv)
+{
+	static const float first[4]  = { 0.5, 0.4, 0.3, 1.0 };
+	static const float second[4] = { 0.8, 0.0, 0.8, 1.0 };
+	GLenum err;
+	bool pass = true;
+
+	piglit_require_gl_version(30);
+	GLuint index = glGenLists(2);
+
+	/* Generate a FBO with color render buffer attachment */
+	GLuint fb = generate_simple_fbo(true,
+					false,
+					false,
+					false);
+	if (fb == 0) {
+		if (!piglit_automatic) {
+			printf("Skipping framebuffer with color"
+			       " attachment\n");
+			pass = false;
+		}
+	}
+	if (!piglit_automatic)
+		printf("Created framebuffer with a color"
+		       " attachment\n");
+	/* Probe the color buffer befor creating display list */
+	pass = piglit_probe_rect_rgba(0, 0,
+				      piglit_width, piglit_height,
+				      default_color)
+		&& pass;
+
+	glNewList(index, GL_COMPILE);
+	glClearBufferfv(GL_COLOR,
+			0,
+			first);
+	glEndList();
+	/* Probe the color buffer befor glCallList() */
+	pass = piglit_probe_rect_rgba(0, 0,
+				      piglit_width, piglit_height,
+				      default_color)
+		&& pass;
+
+	glCallList(index);
+
+	err = glGetError();
+	if (err != GL_NO_ERROR) {
+		fprintf(stderr,
+			"First display list generated "
+			"a GL error (%s, 0x%04x)\n",
+			piglit_get_gl_error_name(err), err);
+		pass = false;
+	}
+	/* Probe the color buffer after glCallList() */
+	pass = piglit_probe_rect_rgba(0, 0,
+				      piglit_width, piglit_height,
+				      first)
+		&& pass;
+
+	/* Create a new list with compile and execute */
+	glNewList(index + 1, GL_COMPILE_AND_EXECUTE);
+	glClearBufferfv(GL_COLOR,
+			0,
+			second);
+	glEndList();
+
+	err = glGetError();
+	if (err != GL_NO_ERROR) {
+		fprintf(stderr,
+			"Second display list generated "
+			"a GL error (%s, 0x%04x)\n",
+			piglit_get_gl_error_name(err), err);
+		pass = false;
+	}
+
+	/* Probe the color buffer after display list is executed */
+	pass = piglit_probe_rect_rgba(0, 0,
+				      piglit_width, piglit_height,
+				      second)
+		&& pass;
+
+	glDeleteFramebuffers(1, &fb);
+	piglit_check_gl_error(GL_NO_ERROR, PIGLIT_FAIL);
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
-- 
1.7.7.4