Index: conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag |
=================================================================== |
--- conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag (revision 0) |
+++ conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag (working copy) |
@@ -0,0 +1,101 @@ |
+ |
+/* |
+** 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); |
+} |