Add ToT WebGL conformance tests : part 9

conformance/ogles/GL/asin/asin_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.
+*/
+
+
+/* The following files are direct copies of each other:
+ *
+ *   GL/acos/acos_float_frag_xvary_ref.frag
+ *   GL/asin/asin_float_frag_xvary_ref.frag
+ *
+ * Care should be taken to apply any changes to both.  Only the last
+ * line where gl_FragColor is assigned should be different.
+ */
+
+#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 asinValues[17];
+        asinValues[0] = -1.5708;
+        asinValues[1] = -1.06544;
+        asinValues[2] = -0.848062;
+        asinValues[3] = -0.675132;
+        asinValues[4] = -0.523599;
+        asinValues[5] = -0.384397;
+        asinValues[6] = -0.25268;
+        asinValues[7] = -0.125328;
+        asinValues[8] = 0.0;
+        asinValues[9] = 0.125328;
+        asinValues[10] = 0.25268;
+        asinValues[11] = 0.384397;
+        asinValues[12] = 0.523599;
+        asinValues[13] = 0.675132;
+        asinValues[14] = 0.848062;
+        asinValues[15] = 1.06544;
+        asinValues[16] = 1.5708;
+        
+        const float M_PI = 3.14159265358979323846;
+        float c = 2.0 * (color.r - 0.5);
+        
+        float arrVal = (c + 1.0) * 8.0;
+        int arr0 = int(floor(arrVal));
+        float weight = arrVal - floor(arrVal);
+        float asin_c = 0.0;
+        
+        if (arr0 == 0)
+                asin_c = lerp(asinValues[0], asinValues[1], weight);
+        else if (arr0 == 1)
+                asin_c = lerp(asinValues[1], asinValues[2], weight);
+        else if (arr0 == 2)
+                asin_c = lerp(asinValues[2], asinValues[3], weight);
+        else if (arr0 == 3)
+                asin_c = lerp(asinValues[3], asinValues[4], weight);
+        else if (arr0 == 4)
+                asin_c = lerp(asinValues[4], asinValues[5], weight);
+        else if (arr0 == 5)
+                asin_c = lerp(asinValues[5], asinValues[6], weight);
+        else if (arr0 == 6)
+                asin_c = lerp(asinValues[6], asinValues[7], weight);
+        else if (arr0 == 7)
+                asin_c = lerp(asinValues[7], asinValues[8], weight);
+        else if (arr0 == 8)
+                asin_c = lerp(asinValues[8], asinValues[9], weight);
+        else if (arr0 == 9)
+                asin_c = lerp(asinValues[9], asinValues[10], weight);
+        else if (arr0 == 10)
+                asin_c = lerp(asinValues[10], asinValues[11], weight);
+        else if (arr0 == 11)
+                asin_c = lerp(asinValues[11], asinValues[12], weight);
+        else if (arr0 == 12)
+                asin_c = lerp(asinValues[12], asinValues[13], weight);
+        else if (arr0 == 13)
+                asin_c = lerp(asinValues[13], asinValues[14], weight);
+        else if (arr0 == 14)
+                asin_c = lerp(asinValues[14], asinValues[15], weight);
+        else if (arr0 == 15)
+                asin_c = lerp(asinValues[15], asinValues[16], weight);
+        else if (arr0 == 16)
+                asin_c = asinValues[16];
+
+        gl_FragColor = vec4(asin_c / M_PI + 0.5, 0.0, 0.0, 1.0);
+}