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Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag new file mode 100644 index 0000000000..92c81ec5f8 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/asin/asin_float_frag_xvary_ref.frag @@ -0,0 +1,93 @@ + +/* +Copyright (c) 2019 The Khronos Group Inc. +Use of this source code is governed by an MIT-style license that can be +found in the LICENSE.txt file. +*/ + + +/* 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); +} |