[Piglit] [PATCH] Add test that uses attribute 0 when there is no vertex shader declared.

[jian.j.zhao at intel.com]

From: Jian Zhao <jian.j.zhao at intel.com>

Now it fails with mesa driver.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42688
---
 tests/shaders/CMakeLists.gl.txt                  |    1 +
 tests/shaders/attribute0-fixed-function-vertex.c |   89 ++++++++++++++++++++++
 2 files changed, 90 insertions(+), 0 deletions(-)
 create mode 100644 tests/shaders/attribute0-fixed-function-vertex.c

diff --git a/tests/shaders/CMakeLists.gl.txt b/tests/shaders/CMakeLists.gl.txt
index 175458c..7665723 100644
--- a/tests/shaders/CMakeLists.gl.txt
+++ b/tests/shaders/CMakeLists.gl.txt
@@ -19,6 +19,7 @@ add_executable (activeprogram-bad-program activeprogram-bad-program.c)
 add_executable (activeprogram-get activeprogram-get.c)
 add_executable (ati-fs-bad-delete ati-fs-bad-delete.c)
 add_executable (attribute0 attribute0.c)
+add_executable (attribute0-fixed-function-vertex attribute0-fixed-function-vertex.c)
 add_executable (createshaderprogram-bad-type createshaderprogram-bad-type.c)
 add_executable (createshaderprogram-attached-shaders createshaderprogram-attached-shaders.c)
 add_executable (trinity-fp1 trinity-fp1.c)
diff --git a/tests/shaders/attribute0-fixed-function-vertex.c b/tests/shaders/attribute0-fixed-function-vertex.c
new file mode 100644
index 0000000..a4330af
--- /dev/null
+++ b/tests/shaders/attribute0-fixed-function-vertex.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright © 2010, 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.
+ *
+ *
+ * Authors:
+ *  *    Jian Zhao <jian.j.zhao at intel.com>
+ *   *
+ *
+ */
+
+/**
+ * \file attribute0-fixed-function-vertex.c
+ * Verify that applications can use attribute 0 with fixed function in vertex.
+ */
+
+#include "piglit-util.h"
+
+int piglit_width = 100, piglit_height = 100;
+int piglit_window_mode = GLUT_RGBA | GLUT_DOUBLE;
+
+static const char fs_text[] =
+	"void main() { gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0); }\n"
+	;
+
+static GLuint prog;
+
+static const float green[] = { 0.0, 1.0, 0.0, 1.0 };
+static const float blue[] = { 0.0, 0.0, 1.0, 1.0 };
+static const float vertex[] = {0.5, 0.5, 0.0, 1, 0.5, -1.0, 0.0, 1, -1.0, 0.5, 0.0, 1};
+
+enum piglit_result
+piglit_display(void)
+{
+	GLboolean pass = GL_TRUE;
+
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 0, &vertex[0]);
+	glEnableVertexAttribArray(0);
+	glDrawArrays(GL_TRIANGLES, 0, 3);
+
+	pass &= piglit_probe_pixel_rgb(piglit_width / 4, piglit_height / 4,
+				       blue);
+	pass &= piglit_probe_pixel_rgb(piglit_width / 2, piglit_height / 2,
+				       green);
+
+	assert(!glGetError());
+
+	glutSwapBuffers();
+
+	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	GLuint fs;
+
+	piglit_require_fragment_shader();
+
+	fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_text);
+	prog = piglit_link_simple_program(0, fs);
+
+	piglit_LinkProgram(prog);
+	piglit_link_check_status(prog);
+
+	piglit_UseProgram(prog);
+
+	glClearColor(blue[0], blue[1], blue[2], blue[3]);
+}
-- 
1.6.0.6