Index: conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag |
=================================================================== |
--- conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag (revision 0) |
+++ conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag (working copy) |
@@ -0,0 +1,110 @@ |
+ |
+/* |
+** 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); |
+} |