[Mesa-dev] [PATCH 2/2] getlocal4d-with-error: New test for a bug in glGetProgramLocalParameter4dARB()

[Eric Anholt]

---
 tests/all.tests                                    |    1 +
 tests/spec/arb_vertex_program/CMakeLists.gl.txt    |    1 +
 .../arb_vertex_program/getlocal4d-with-error.c     |   88 ++++++++++++++++++++
 3 files changed, 90 insertions(+), 0 deletions(-)
 create mode 100644 tests/spec/arb_vertex_program/getlocal4d-with-error.c

diff --git a/tests/all.tests b/tests/all.tests
index 8a319be..7754e17 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -895,6 +895,7 @@ arb_vertex_buffer_object['mixed-immediate-and-vbo'] = PlainExecTest(['arb_vertex
 arb_vertex_program = Group()
 spec['ARB_vertex_program'] = arb_vertex_program
 arb_vertex_program['getenv4d-with-error'] = PlainExecTest(['arb_vertex_program-getenv4d-with-error', '-auto'])
+arb_vertex_program['getlocal4d-with-error'] = PlainExecTest(['arb_vertex_program-getlocal4d-with-error', '-auto'])
 
 ext_framebuffer_object = Group()
 spec['EXT_framebuffer_object'] = ext_framebuffer_object
diff --git a/tests/spec/arb_vertex_program/CMakeLists.gl.txt b/tests/spec/arb_vertex_program/CMakeLists.gl.txt
index f71badd..5f12f96 100644
--- a/tests/spec/arb_vertex_program/CMakeLists.gl.txt
+++ b/tests/spec/arb_vertex_program/CMakeLists.gl.txt
@@ -12,5 +12,6 @@ link_libraries (
 )
 
 add_executable (arb_vertex_program-getenv4d-with-error getenv4d-with-error.c)
+add_executable (arb_vertex_program-getlocal4d-with-error getlocal4d-with-error.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/arb_vertex_program/getlocal4d-with-error.c b/tests/spec/arb_vertex_program/getlocal4d-with-error.c
new file mode 100644
index 0000000..48bf8bc
--- /dev/null
+++ b/tests/spec/arb_vertex_program/getlocal4d-with-error.c
@@ -0,0 +1,88 @@
+/*
+ * 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 getlocal4d-with-error.c
+ *
+ * Tests for a bug in Mesa where glGetProgramEnvParameter4dARB would
+ * fail to update the result if there was an existing GL error in the
+ * context.
+ */
+
+#include "piglit-util.h"
+
+int piglit_width = 64, piglit_height = 64;
+int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE | GLUT_ALPHA;
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass = true;
+	double test_data[4] = { 0.1, 0.2, 0.3, 0.4 };
+	double result_data[4];
+	float epsilon = .00001;
+
+	piglit_require_extension("GL_ARB_vertex_program");
+
+	glProgramLocalParameter4dARB(GL_VERTEX_PROGRAM_ARB, 0,
+				   test_data[0],
+				   test_data[1],
+				   test_data[2],
+				   test_data[3]);
+
+	/* Produce a GL error to trick Mesa's
+	 * glGetProgramEnvParameterdvARB code.
+	 */
+	glDepthFunc(0xd0d0d0d0);
+
+	glGetProgramLocalParameterdvARB(GL_VERTEX_PROGRAM_ARB, 0, result_data);
+
+	if (fabs(test_data[0] - result_data[0]) > epsilon ||
+	    fabs(test_data[1] - result_data[1]) > epsilon ||
+	    fabs(test_data[2] - result_data[2]) > epsilon ||
+	    fabs(test_data[3] - result_data[3]) > epsilon) {
+		fprintf(stderr, "ProgramEnvParamter4dvARB failed:\n");
+		fprintf(stderr, "Expected: (%f %f %f %f)\n",
+			test_data[0],
+			test_data[1],
+			test_data[2],
+			test_data[3]);
+		fprintf(stderr, "Expected: (%f %f %f %f)\n",
+			result_data[0],
+			result_data[1],
+			result_data[2],
+			result_data[3]);
+
+		pass = false;
+	}
+
+	/* Clear our error. */
+	(void)glGetError();
+
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+	return PIGLIT_FAIL;
+}
-- 
1.7.5.4