Index: conformance/ogles/GL/acos/acos_vec3_frag_xvary_ref.frag |
=================================================================== |
--- conformance/ogles/GL/acos/acos_vec3_frag_xvary_ref.frag (revision 0) |
+++ conformance/ogles/GL/acos/acos_vec3_frag_xvary_ref.frag (working copy) |
@@ -0,0 +1,183 @@ |
+ |
+/* |
+** 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_vec3_frag_xvary_ref.frag |
+ * GL/asin/asin_vec3_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; |
+ vec3 c = 2.0 * (color.rgb - 0.5); |
+ |
+ vec3 arrVal = (c + vec3(1.0, 1.0, 1.0)) * 8.0; |
+ int arr0x = int(floor(arrVal.x)); |
+ int arr0y = int(floor(arrVal.y)); |
+ int arr0z = int(floor(arrVal.z)); |
+ vec3 weight = arrVal - floor(arrVal); |
+ vec3 asin_c = vec3(0.0); |
+ |
+ if (arr0x == 0) |
+ asin_c.x = lerp(asinValues[0], asinValues[1], weight.x); |
+ else if (arr0x == 1) |
+ asin_c.x = lerp(asinValues[1], asinValues[2], weight.x); |
+ else if (arr0x == 2) |
+ asin_c.x = lerp(asinValues[2], asinValues[3], weight.x); |
+ else if (arr0x == 3) |
+ asin_c.x = lerp(asinValues[3], asinValues[4], weight.x); |
+ else if (arr0x == 4) |
+ asin_c.x = lerp(asinValues[4], asinValues[5], weight.x); |
+ else if (arr0x == 5) |
+ asin_c.x = lerp(asinValues[5], asinValues[6], weight.x); |
+ else if (arr0x == 6) |
+ asin_c.x = lerp(asinValues[6], asinValues[7], weight.x); |
+ else if (arr0x == 7) |
+ asin_c.x = lerp(asinValues[7], asinValues[8], weight.x); |
+ else if (arr0x == 8) |
+ asin_c.x = lerp(asinValues[8], asinValues[9], weight.x); |
+ else if (arr0x == 9) |
+ asin_c.x = lerp(asinValues[9], asinValues[10], weight.x); |
+ else if (arr0x == 10) |
+ asin_c.x = lerp(asinValues[10], asinValues[11], weight.x); |
+ else if (arr0x == 11) |
+ asin_c.x = lerp(asinValues[11], asinValues[12], weight.x); |
+ else if (arr0x == 12) |
+ asin_c.x = lerp(asinValues[12], asinValues[13], weight.x); |
+ else if (arr0x == 13) |
+ asin_c.x = lerp(asinValues[13], asinValues[14], weight.x); |
+ else if (arr0x == 14) |
+ asin_c.x = lerp(asinValues[14], asinValues[15], weight.x); |
+ else if (arr0x == 15) |
+ asin_c.x = lerp(asinValues[15], asinValues[16], weight.x); |
+ else if (arr0x == 16) |
+ asin_c.x = asinValues[16]; |
+ |
+ if (arr0y == 0) |
+ asin_c.y = lerp(asinValues[0], asinValues[1], weight.y); |
+ else if (arr0y == 1) |
+ asin_c.y = lerp(asinValues[1], asinValues[2], weight.y); |
+ else if (arr0y == 2) |
+ asin_c.y = lerp(asinValues[2], asinValues[3], weight.y); |
+ else if (arr0y == 3) |
+ asin_c.y = lerp(asinValues[3], asinValues[4], weight.y); |
+ else if (arr0y == 4) |
+ asin_c.y = lerp(asinValues[4], asinValues[5], weight.y); |
+ else if (arr0y == 5) |
+ asin_c.y = lerp(asinValues[5], asinValues[6], weight.y); |
+ else if (arr0y == 6) |
+ asin_c.y = lerp(asinValues[6], asinValues[7], weight.y); |
+ else if (arr0y == 7) |
+ asin_c.y = lerp(asinValues[7], asinValues[8], weight.y); |
+ else if (arr0y == 8) |
+ asin_c.y = lerp(asinValues[8], asinValues[9], weight.y); |
+ else if (arr0y == 9) |
+ asin_c.y = lerp(asinValues[9], asinValues[10], weight.y); |
+ else if (arr0y == 10) |
+ asin_c.y = lerp(asinValues[10], asinValues[11], weight.y); |
+ else if (arr0y == 11) |
+ asin_c.y = lerp(asinValues[11], asinValues[12], weight.y); |
+ else if (arr0y == 12) |
+ asin_c.y = lerp(asinValues[12], asinValues[13], weight.y); |
+ else if (arr0y == 13) |
+ asin_c.y = lerp(asinValues[13], asinValues[14], weight.y); |
+ else if (arr0y == 14) |
+ asin_c.y = lerp(asinValues[14], asinValues[15], weight.y); |
+ else if (arr0y == 15) |
+ asin_c.y = lerp(asinValues[15], asinValues[16], weight.y); |
+ else if (arr0y == 16) |
+ asin_c.y = asinValues[16]; |
+ |
+ if (arr0z == 0) |
+ asin_c.z = lerp(asinValues[0], asinValues[1], weight.z); |
+ else if (arr0z == 1) |
+ asin_c.z = lerp(asinValues[1], asinValues[2], weight.z); |
+ else if (arr0z == 2) |
+ asin_c.z = lerp(asinValues[2], asinValues[3], weight.z); |
+ else if (arr0z == 3) |
+ asin_c.z = lerp(asinValues[3], asinValues[4], weight.z); |
+ else if (arr0z == 4) |
+ asin_c.z = lerp(asinValues[4], asinValues[5], weight.z); |
+ else if (arr0z == 5) |
+ asin_c.z = lerp(asinValues[5], asinValues[6], weight.z); |
+ else if (arr0z == 6) |
+ asin_c.z = lerp(asinValues[6], asinValues[7], weight.z); |
+ else if (arr0z == 7) |
+ asin_c.z = lerp(asinValues[7], asinValues[8], weight.z); |
+ else if (arr0z == 8) |
+ asin_c.z = lerp(asinValues[8], asinValues[9], weight.z); |
+ else if (arr0z == 9) |
+ asin_c.z = lerp(asinValues[9], asinValues[10], weight.z); |
+ else if (arr0z == 10) |
+ asin_c.z = lerp(asinValues[10], asinValues[11], weight.z); |
+ else if (arr0z == 11) |
+ asin_c.z = lerp(asinValues[11], asinValues[12], weight.z); |
+ else if (arr0z == 12) |
+ asin_c.z = lerp(asinValues[12], asinValues[13], weight.z); |
+ else if (arr0z == 13) |
+ asin_c.z = lerp(asinValues[13], asinValues[14], weight.z); |
+ else if (arr0z == 14) |
+ asin_c.z = lerp(asinValues[14], asinValues[15], weight.z); |
+ else if (arr0z == 15) |
+ asin_c.z = lerp(asinValues[15], asinValues[16], weight.z); |
+ else if (arr0z == 16) |
+ asin_c.z = asinValues[16]; |
+ |
+ // acos(x) = PI/2 - asin(x) |
+ gl_FragColor = vec4(0.5 - asin_c / M_PI, 1.0); |
+} |