glbackend tests, copy first try from hg reposglbackend

1 files changed, 40 insertions, 0 deletions

diff --git a/src/OpenGL/GLBackend/ClipShader.cs b/src/OpenGL/GLBackend/ClipShader.cs
new file mode 100644
index 00000000..a805716c
--- /dev/null
+++ b/src/OpenGL/GLBackend/ClipShader.cs
@@ -0,0 +1,40 @@
+using System;
+using OpenTK.Graphics.OpenGL;
+
+namespace go.GLBackend
+{
+	public class ClipShader : Shader
+	{
+		public ClipShader ()
+		{
+			vertSource = @"
+				#version 130
+
+				precision highp float;
+
+				uniform mat4 projection_matrix;
+				uniform mat4 modelview_matrix;
+
+				in vec2 in_position;
+
+				void main(void)
+				{
+					gl_Position = projection_matrix * modelview_matrix * vec4(in_position,0, 1);
+				}";
+
+			fragSource = @"
+				#version 130
+				precision highp float;
+
+				out vec4 out_frag_color;
+
+				void main(void)
+				{
+					out_frag_color = vec4(1.0,1.0,1.0,1.0);
+				}";
+
+			Compile ();
+		}
+	}
+}
+