[Piglit] [PATCH 6/8] GL_ARB_uniform_buffer_object: Test 3 pieces of glGetUniformBlockIndex().

Eric Anholt eric at anholt.net
Tue May 1 11:08:15 PDT 2012


---
 tests/all.tests                                    |    1 +
 .../arb_uniform_buffer_object/CMakeLists.gl.txt    |    1 +
 .../getuniformblockindex.c                         |  137 ++++++++++++++++++++
 3 files changed, 139 insertions(+)
 create mode 100644 tests/spec/arb_uniform_buffer_object/getuniformblockindex.c

diff --git a/tests/all.tests b/tests/all.tests
index b71a42f..5600fed 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1615,6 +1615,7 @@ spec['ARB_uniform_buffer_object'] = arb_uniform_buffer_object
 import_glsl_parser_tests(spec['ARB_uniform_buffer_object'],
 			 os.path.join(testsDir, 'spec', 'arb_uniform_buffer_object'),
 			 [''])
+arb_uniform_buffer_object['getuniformblockindex'] = concurrent_test('arb_uniform_buffer_object-getuniformblockindex')
 arb_uniform_buffer_object['layout-std140'] = concurrent_test('arb_uniform_buffer_object-layout-std140')
 
 ati_draw_buffers = Group()
diff --git a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
index 75b45fb..87bd089 100644
--- a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
+++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
@@ -12,6 +12,7 @@ link_libraries (
 	${GLUT_glut_LIBRARY}
 )
 
+add_executable (arb_uniform_buffer_object-getuniformblockindex getuniformblockindex.c)
 add_executable (arb_uniform_buffer_object-layout-std140 layout-std140.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/arb_uniform_buffer_object/getuniformblockindex.c b/tests/spec/arb_uniform_buffer_object/getuniformblockindex.c
new file mode 100644
index 0000000..7d2340b
--- /dev/null
+++ b/tests/spec/arb_uniform_buffer_object/getuniformblockindex.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright © 2012 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 getuniformblockindex.c
+ *
+ * Tests the glGetUniformBlockIndex API: returning INVALID_INDEX for
+ * inactive blocks or error conditions, and consecutive numbers from 0
+ * for active blocks.
+ */
+
+#include "piglit-util.h"
+
+int piglit_width = 100;
+int piglit_height = 100;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_RGB | GLUT_ALPHA;
+static GLuint prog;
+
+static const char frag_shader_text[] =
+	"#extension GL_ARB_uniform_buffer_object : require\n"
+	"\n"
+	"uniform ub_a { vec4 a; };\n"
+	"uniform ub_b { vec4 b; };\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"	gl_FragColor = a + b;\n"
+	"}\n";
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass = true;
+	int expected_ub_b_index;
+	int index;
+	GLuint fs;
+
+	piglit_require_extension("GL_ARB_uniform_buffer_object");
+
+	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, frag_shader_text);
+	if (!fs) {
+		printf("Failed to compile FS:\n%s", frag_shader_text);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	prog = piglit_link_simple_program(0, fs);
+	if (!prog)
+		piglit_report_result(PIGLIT_FAIL);
+
+	index = glGetUniformBlockIndex(prog, "ub_a");
+	printf("Uniform block \"ub_a\" index: 0x%08x\n", index);
+	if (index == 0) {
+		expected_ub_b_index = 1;
+	} else if (index == 1) {
+		expected_ub_b_index = 0;
+	} else {
+		expected_ub_b_index = 1;
+		printf("  Expected 0 or 1\n");
+		pass = false;
+	}
+
+	/* From the GL_ARB_uniform_buffer_object spec:
+	 *
+	 *     "GetUniformBlockIndex returns the uniform block index
+	 *      for the uniform block named <uniformBlockName> of
+	 *      <program>. If <uniformBlockName> does not identify an
+	 *      active uniform block of <program>, or an error
+	 *      occurred, then INVALID_INDEX is returned.  The indices
+	 *      of the active uniform blocks of a program are assigned
+	 *      in consecutive order, beginning with zero."
+	 */
+	index = glGetUniformBlockIndex(prog, "ub_b");
+	printf("Uniform block \"ub_b\" index: 0x%08x\n", index);
+	if (index != expected_ub_b_index) {
+		printf("  Expected 0x%08x\n", expected_ub_b_index);
+		pass = false;
+	}
+
+	/* Since we can't guarantee that an unused uniform block is
+	 * inactive, we ask for a block name that was never even defined.
+	 */
+	index = glGetUniformBlockIndex(prog, "ub_c");
+	printf("Uniform block \"ub_c\" index: 0x%08x\n", index);
+	if (index != GL_INVALID_INDEX) {
+		printf("  Expected 0x%08x\n", GL_INVALID_INDEX);
+		pass = false;
+	}
+
+	if (!piglit_check_gl_error(0)) {
+		pass = false;
+	}
+
+	/* From the GL_ARB_uniform_buffer_object spec:
+	 *
+	 *     "The error INVALID_VALUE is generated by
+	 *      GetUniformIndices, GetActiveUniformsiv,
+	 *      GetActiveUniformName, GetUniformBlockIndex,
+	 *      GetActiveUniformBlockiv, GetActiveUniformBlockName,
+	 *      and UniformBlockBinding if <program> is not a value
+	 *      generated by GL.
+	 */
+	index = glGetUniformBlockIndex(0xd0d0, "a");
+	if (!piglit_check_gl_error(GL_INVALID_VALUE)) {
+		pass = false;
+	} else if (index != GL_INVALID_INDEX) {
+		printf("Bad program uniform index: 0x%08x\n", index);
+		printf("  Expected 0x%08x\n", GL_INVALID_INDEX);
+		pass = false;
+	}
+
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result piglit_display(void)
+{
+	/* UNREACHED */
+	return PIGLIT_FAIL;
+}
-- 
1.7.10



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