[Piglit] [PATCH 7/8] GL_ARB_ubo: Test 2 errors and 1 success case of glGetUniformIndices().

[Eric Anholt]

---
 tests/all.tests                                    |    1 +
 .../arb_uniform_buffer_object/CMakeLists.gl.txt    |    1 +
 .../arb_uniform_buffer_object/getuniformindices.c  |  129 ++++++++++++++++++++
 3 files changed, 131 insertions(+)
 create mode 100644 tests/spec/arb_uniform_buffer_object/getuniformindices.c

diff --git a/tests/all.tests b/tests/all.tests
index 5600fed..bf4dd4f 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -1616,6 +1616,7 @@ 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['getuniformindices'] = concurrent_test('arb_uniform_buffer_object-getuniformindices')
 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 87bd089..0f7be76 100644
--- a/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
+++ b/tests/spec/arb_uniform_buffer_object/CMakeLists.gl.txt
@@ -13,6 +13,7 @@ link_libraries (
 )
 
 add_executable (arb_uniform_buffer_object-getuniformblockindex getuniformblockindex.c)
+add_executable (arb_uniform_buffer_object-getuniformindices getuniformindices.c)
 add_executable (arb_uniform_buffer_object-layout-std140 layout-std140.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/arb_uniform_buffer_object/getuniformindices.c b/tests/spec/arb_uniform_buffer_object/getuniformindices.c
new file mode 100644
index 0000000..1a1bcd8
--- /dev/null
+++ b/tests/spec/arb_uniform_buffer_object/getuniformindices.c
@@ -0,0 +1,129 @@
+/*
+ * 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 getuniformindices.c
+ *
+ * Tests the glGetUniformIndices API: not writing on error conditions,
+ * and consecutive indices starting from 0.
+ */
+
+#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; vec4 b; };\n"
+	"uniform vec4 c;\n"
+	"\n"
+	"void main()\n"
+	"{\n"
+	"	gl_FragColor = a + b + c;\n"
+	"}\n";
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass = true;
+	GLuint fs;
+	GLuint save_index = 0xaaaaaaaa;
+	const GLchar *one_uniform = "a";
+	const GLchar *uniform_names[] = {"a", "b", "c"};
+	bool found_index[3] = {false, false, false};
+	GLuint indices[3], index;
+	int i;
+
+	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);
+
+	/* 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.
+	 *
+	 *      ...
+	 *
+	 *      The error INVALID_VALUE is generated by GetUniformIndices and
+	 *      GetActiveUniformsiv if <uniformCount> is less than zero.
+	 *
+	 *      ...
+	 *
+	 *     "If an error occurs, nothing is written to <uniformIndices>."
+	 */
+	index = save_index;
+	glGetUniformIndices(prog, -1, &one_uniform, &index);
+	if (!piglit_check_gl_error(GL_INVALID_VALUE)) {
+		pass = false;
+	} else if (index != save_index) {
+		printf("Bad program uniform index: 0x%08x\n", index);
+		printf("  Expected 0x%08x\n", save_index);
+		pass = false;
+	}
+
+	index = save_index;
+	glGetUniformIndices(0xd0d0, 1, &one_uniform, &index);
+	if (!piglit_check_gl_error(GL_INVALID_VALUE)) {
+		pass = false;
+	} else if (index != save_index) {
+		printf("Bad program uniform index: 0x%08x\n", index);
+		printf("  Expected 0x%08x\n", save_index);
+		pass = false;
+	}
+
+	glGetUniformIndices(prog, 3, uniform_names, indices);
+	if (!piglit_check_gl_error(0))
+		piglit_report_result(PIGLIT_FAIL);
+
+	for (i = 0; i < 3; i++) {
+		printf("%s: index %d\n", uniform_names[i], indices[i]);
+		if (indices[i] < 0 || indices[i] > 2 ||
+		    found_index[indices[i]]) {
+			printf("Expected consecutive numbers starting from 0\n");
+			pass = false;
+		}
+		found_index[indices[i]] = true;
+	}
+
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result piglit_display(void)
+{
+	/* UNREACHED */
+	return PIGLIT_FAIL;
+}
-- 
1.7.10