diff options
Diffstat (limited to '')
| -rw-r--r-- | dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag new file mode 100644 index 0000000000..b8f6613004 --- /dev/null +++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/sin/sin_float_frag_xvary_ref.frag @@ -0,0 +1,84 @@ + +/* +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. +*/ + + +#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); +} |