[Piglit] [PATCH] new test : glsl-max-vertex-attrib.c

[tapani.palli at intel.com]

From: Tapani Pälli <tapani.palli at intel.com>

Queries the value for GL_MAX_VERTEX_ATTRIBS and uses that as index
to set a value. GL specification states that GL_INVALID_VALUE should
occur if index >= GL_MAX_VERTEX_ATTRIBS.
---
 tests/all.tests                        |    1 +
 tests/shaders/CMakeLists.gl.txt        |    1 +
 tests/shaders/glsl-max-vertex-attrib.c |   72 ++++++++++++++++++++++++++++++++
 3 files changed, 74 insertions(+), 0 deletions(-)
 create mode 100644 tests/shaders/glsl-max-vertex-attrib.c

diff --git a/tests/all.tests b/tests/all.tests
index 19e2904..f9624cd 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -409,6 +409,7 @@ add_plain_test(shaders, 'glsl-link-centroid-01')
 add_plain_test(shaders, 'glsl-link-struct-array')
 add_plain_test(shaders, 'glsl-kwin-blur-1')
 add_plain_test(shaders, 'glsl-kwin-blur-2')
+add_plain_test(shaders, 'glsl-max-vertex-attrib')
 add_plain_test(shaders, 'gpu_shader4_attribs')
 add_plain_test(shaders, 'link-mismatch-layout-01')
 add_plain_test(shaders, 'link-mismatch-layout-02')
diff --git a/tests/shaders/CMakeLists.gl.txt b/tests/shaders/CMakeLists.gl.txt
index cf9e3e9..3fcd4ca 100644
--- a/tests/shaders/CMakeLists.gl.txt
+++ b/tests/shaders/CMakeLists.gl.txt
@@ -14,6 +14,7 @@ link_libraries (
 	${GLUT_glut_LIBRARY}
 )
 
+add_executable (glsl-max-vertex-attrib glsl-max-vertex-attrib.c)
 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)
diff --git a/tests/shaders/glsl-max-vertex-attrib.c b/tests/shaders/glsl-max-vertex-attrib.c
new file mode 100644
index 0000000..3eaf987
--- /dev/null
+++ b/tests/shaders/glsl-max-vertex-attrib.c
@@ -0,0 +1,72 @@
+/**
+ * \file glsl-max-vertex-attrib.c
+ * Test setting vertex attrib value of GL_MAX_VERTEX_ATTRIBS attrib
+ *
+ * Queries the value for GL_MAX_VERTEX_ATTRIBS and uses that as index
+ * to set a value. GL specification states that GL_INVALID_VALUE should
+ * occur if index >= GL_MAX_VERTEX_ATTRIBS.
+ *
+ * \author Sun Yi <yi.sun at intel.com>
+ * \author Tapani Pälli <tapani.palli at intel.com>
+ */
+
+#include "piglit-util.h"
+#include "piglit-framework.h"
+
+int piglit_window_mode = GLUT_RGB;
+
+int piglit_width = 250, piglit_height = 250;
+char test[255];
+
+const char *vs_code =
+    "attribute float VertexTemp;"
+    "void main()\n\0"
+    "{\n"
+    "    gl_Position = VertexTemp; // vec4(1.0,0.0,0.0,0.0);  //piglit_Position;\n"
+    "}\n";
+
+const char *fs_code =
+    "void main()\n"
+    "{\n"
+    "    gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
+    "}\n";
+
+enum piglit_result piglit_display(void)
+{
+        int AttribCount;
+        int error = 0;
+        GLuint myProgram, myVertex, myFrag;
+
+        myVertex = glCreateShader(GL_VERTEX_SHADER);
+        myFrag = glCreateShader(GL_FRAGMENT_SHADER);
+        myProgram = glCreateProgram();
+
+        glAttachShader(myProgram, myVertex);
+        glAttachShader(myProgram, myFrag);
+
+        glShaderSource(myVertex, 1, (const GLchar**)&vs_code,NULL);
+        glShaderSource(myFrag, 1, (const GLchar**)&fs_code,NULL);
+
+        glCompileShader(myVertex);
+        glCompileShader(myFrag);
+        glLinkProgram(myProgram);
+
+        glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &AttribCount);
+        glVertexAttrib1f(AttribCount, 234.5);
+
+        error = glGetError();
+
+        /* we should get expected value of GL_INVALID_VALUE 0x501 */
+        return (error == GL_INVALID_VALUE) ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+  if (!GLEW_VERSION_2_0) {
+    printf("Requires OpenGL 2.0\n");
+    piglit_report_result(PIGLIT_SKIP);
+    exit(1);
+  }
+}
-- 
1.7.5.1

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