Add ToT WebGL conformance tests : part 9

conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag

+
+/*
+** 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.
+*/
+
+
+#ifdef GL_ES
+precision mediump float;
+#endif
+varying vec4 color;
+
+float lerp(float a, float b, float s)
+{
+        return a + (b - a) * s;
+}
+
+void main (void)
+{
+        float sinValues[17];
+        sinValues[0] = 0.0;
+        sinValues[1] = 0.382683;
+        sinValues[2] = 0.707107;
+        sinValues[3] = 0.92388;
+        sinValues[4] = 1.0;
+        sinValues[5] = 0.92388;
+        sinValues[6] = 0.707107;
+        sinValues[7] = 0.382683;
+        sinValues[8] = 0.0;
+        sinValues[9] = -0.382683;
+        sinValues[10] = -0.707107;
+        sinValues[11] = -0.92388;
+        sinValues[12] = -1.0;
+        sinValues[13] = -0.923879;
+        sinValues[14] = -0.707107;
+        sinValues[15] = -0.382683;
+        sinValues[16] = 0.0;
+        
+        const float M_PI = 3.14159265358979323846;
+        float c = 2.0 * M_PI * color.r;
+
+        float arrVal = c * 2.546478971;
+        int arr0 = int(floor(arrVal));
+        float weight = arrVal - floor(arrVal);
+        float sin_c = 0.0;
+        
+        if (arr0 == 0)
+                sin_c = lerp(sinValues[0], sinValues[1], weight);
+        else if (arr0 == 1)
+                sin_c = lerp(sinValues[1], sinValues[2], weight);
+        else if (arr0 == 2)
+                sin_c = lerp(sinValues[2], sinValues[3], weight);
+        else if (arr0 == 3)
+                sin_c = lerp(sinValues[3], sinValues[4], weight);
+        else if (arr0 == 4)
+                sin_c = lerp(sinValues[4], sinValues[5], weight);
+        else if (arr0 == 5)
+                sin_c = lerp(sinValues[5], sinValues[6], weight);
+        else if (arr0 == 6)
+                sin_c = lerp(sinValues[6], sinValues[7], weight);
+        else if (arr0 == 7)
+                sin_c = lerp(sinValues[7], sinValues[8], weight);
+        else if (arr0 == 8)
+                sin_c = lerp(sinValues[8], sinValues[9], weight);
+        else if (arr0 == 9)
+                sin_c = lerp(sinValues[9], sinValues[10], weight);
+        else if (arr0 == 10)
+                sin_c = lerp(sinValues[10], sinValues[11], weight);
+        else if (arr0 == 11)
+                sin_c = lerp(sinValues[11], sinValues[12], weight);
+        else if (arr0 == 12)
+                sin_c = lerp(sinValues[12], sinValues[13], weight);
+        else if (arr0 == 13)
+                sin_c = lerp(sinValues[13], sinValues[14], weight);
+        else if (arr0 == 14)
+                sin_c = lerp(sinValues[14], sinValues[15], weight);
+        else if (arr0 == 15)
+                sin_c = lerp(sinValues[15], sinValues[16], weight);
+        else if (arr0 == 16)
+                sin_c = sinValues[16];
+
+        gl_FragColor = vec4(0.5 * sin_c + 0.5, 0.0, 0.0, 1.0);
+}