Add ToT WebGL conformance tests : part 9

conformance/ogles/GL/control_flow/nested_if_else_vert.vert

Index: conformance/ogles/GL/control_flow/nested_if_else_vert.vert
===================================================================
--- conformance/ogles/GL/control_flow/nested_if_else_vert.vert	(revision 0)
+++ conformance/ogles/GL/control_flow/nested_if_else_vert.vert	(working copy)
@@ -0,0 +1,57 @@
+
+/*
+** Copyright (c) 2012 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE 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
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+	int setval = 30;
+	
+	if(--setval!=29)
+		if( (setval+=11) == 40)
+			if(setval/4 == 11)
+				setval = 11;
+			else if(setval/4 == 10)
+				if(setval-3 == 37)
+					setval=12;
+				else setval = 9;
+			else setval = 10;
+		else setval = 30;
+	else if(setval == 29)
+		if((setval+=19) != 48)
+			setval = 13;
+		else if((setval+=19) == 29)
+			setval = 28;
+		else setval = 53;
+	else setval = 32;
+	float gray;
+	if( setval == 53 )
+	gray=1.0;
+	else gray=0.0;
+	color = vec4(gray, gray, gray, 1.0);
+	gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}