[Piglit] [PATCH 1/6] Simple framework for GLSL linker tests

[Ian Romanick]

From: Ian Romanick <ian.d.romanick at intel.com>

Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
---
 tests/shaders/CMakeLists.gl.txt |    1 +
 tests/shaders/glsl-link-test.c  |  126 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 127 insertions(+), 0 deletions(-)
 create mode 100644 tests/shaders/glsl-link-test.c

diff --git a/tests/shaders/CMakeLists.gl.txt b/tests/shaders/CMakeLists.gl.txt
index 3dce256..1bf73e8 100644
--- a/tests/shaders/CMakeLists.gl.txt
+++ b/tests/shaders/CMakeLists.gl.txt
@@ -126,6 +126,7 @@ add_executable (glsl-link-initializer-06 glsl-link-initializer-06.c)
 add_executable (glsl-link-invariant-01 glsl-link-invariant-01.c)
 add_executable (glsl-link-centroid-01 glsl-link-centroid-01.c)
 add_executable (glsl-link-struct-array glsl-link-struct-array.c)
+add_executable (glsl-link-test glsl-link-test.c)
 add_executable (gpu_shader4_attribs gpu_shader4_attribs.c)
 add_executable (vp-address-01 vp-address-01.c)
 add_executable (vp-address-02 vp-address-02.c)
diff --git a/tests/shaders/glsl-link-test.c b/tests/shaders/glsl-link-test.c
new file mode 100644
index 0000000..7e252df
--- /dev/null
+++ b/tests/shaders/glsl-link-test.c
@@ -0,0 +1,126 @@
+/*
+ * 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 glsl-link-test.c
+ * Try to link a set of shaders, check if the result matches the expectation
+ *
+ * \author Ian Romanick
+ */
+
+#include "piglit-util.h"
+
+int piglit_width = 100, piglit_height = 100;
+int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
+
+enum piglit_result
+piglit_display(void)
+{
+	return PIGLIT_FAIL;
+}
+
+void piglit_init(int argc, char **argv)
+{
+	GLint program;
+	bool expect;
+	bool result;
+	unsigned i;
+	const char *invalid_file = NULL;
+
+	if (!GLEW_VERSION_2_0) {
+		printf("Requires OpenGL 2.0\n");
+		piglit_report_result(PIGLIT_SKIP);
+	}
+
+	piglit_require_GLSL();
+	program = piglit_CreateProgram();
+
+	for (i = 1; i < argc; i++) {
+		size_t len;
+		GLint shader;
+		GLenum target;
+
+		if (strcmp(argv[i], "pass") == 0) {
+			expect = true;
+			break;
+		}
+
+		if (strcmp(argv[i], "fail") == 0) {
+			expect = false;
+			break;
+		}
+
+		/* Expect that the name is at least one character plus
+		 * ".vert", ".geom", or ".frag"
+		 */
+		len = strlen(argv[i]);
+		if (len < 6) {
+			invalid_file = argv[i];
+			break;
+		}
+
+		if (strcmp(argv[i] + len - 5, ".vert") == 0) {
+			target = GL_VERTEX_SHADER;
+		} else if (strcmp(argv[i] + len - 5, ".geom") == 0) {
+			target = GL_GEOMETRY_SHADER;
+			if (!GLEW_VERSION_3_2 && !GLEW_ARB_geometry_shader4) {
+				printf("Requires geometry shaders.\n");
+				piglit_report_result(PIGLIT_SKIP);
+			}
+		} else if (strcmp(argv[i] + len - 5, ".frag") == 0) {
+			target = GL_FRAGMENT_SHADER;
+		} else {
+			invalid_file = argv[i];
+			break;
+		}
+
+		shader = piglit_compile_shader(target, argv[i]);
+		glAttachShader(program, shader);
+		glDeleteShader(shader);
+	}
+
+	if (i == argc) {
+		fprintf(stderr, "Last command line option must be either "
+			"\"pass\" or \"fail\".\n");
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	if (invalid_file != NULL) {
+		fprintf(stderr, "Invalid shader file name \"%s\".\n",
+			invalid_file);
+		piglit_report_result(PIGLIT_FAIL);
+	}
+
+	piglit_LinkProgram(program);
+
+	result = piglit_link_check_status_quiet(program);
+	if (result != expect)
+		fprintf(stderr,
+			"Program should have %s linking, but "
+			"it was (incorrectly) %s.\n",
+			expect ? "succeeded" : "failed",
+			expect ? "unsuccesful" : "succesful");
+
+	piglit_report_result((result == expect) ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
-- 
1.7.6.4