Add ToT WebGL conformance tests : part 9

conformance/ogles/GL/mat/mat2_copy_vert.vert

Index: conformance/ogles/GL/mat/mat2_copy_vert.vert
===================================================================
--- conformance/ogles/GL/mat/mat2_copy_vert.vert	(revision 0)
+++ conformance/ogles/GL/mat/mat2_copy_vert.vert	(working copy)
@@ -0,0 +1,72 @@
+
+/*
+** 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;
+
+#define ERROR_EPSILON 0.1
+
+void main (void)
+{
+	float x;
+	// Declare a 2 by 2 matrix with unique elements.
+	mat2 a = mat2(1.0, 2.0,   // 1.0 4.0
+	              4.0, 8.0);  // 2.0 8.0
+
+	// Copy the matrix to another non-const matrix.
+	mat2 b = a;
+
+	// Check each element of the copy.
+	bool elms = true;
+	if(b[0][0] != 1.0) elms = false;
+	if(b[0][1] != 2.0) elms = false;
+	if(b[1][0] != 4.0) elms = false;
+	if(b[1][1] != 8.0) elms = false;
+
+	// Add up each row of the copy.
+	bool rows = true;
+	x = b[0][0] + b[1][0];
+	if(x < 5.0-ERROR_EPSILON || x > 5.0+ERROR_EPSILON) rows = false;
+	x = b[0][1] + b[1][1];
+	if(x < 10.0-ERROR_EPSILON || x > 10.0+ERROR_EPSILON) rows = false;
+
+	// Add up each column of the copy.
+	bool cols = true;
+	x = b[0][0] + b[0][1];
+	if(x < 3.0-ERROR_EPSILON || x > 3.0+ERROR_EPSILON) cols = false;
+	x = b[1][0] + b[1][1];
+	if(x < 12.0-ERROR_EPSILON || x > 12.0+ERROR_EPSILON) cols = false;
+
+	// Check if all of the operations were successful.
+	float gray = elms && rows && cols ? 1.0 : 0.0;
+
+	// Assign the varying variable color.
+	color = vec4(gray, gray, gray, 1.0);
+
+	// Transform the vertex position.
+	gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}
+