testing/web-platform/tests/webgl/conformance-1.0.3/conformance/ogles/GL/asin/asin_vec2_frag_xvary.frag
author James Graham <james@hoppipolla.co.uk>
Mon, 18 Jan 2016 12:54:03 +0000
changeset 281258 7d68d3d864e5a2f63c508bfab2b2ffcbcecb42b6
permissions -rw-r--r--
Bug 1241948 - Update web-platform-tests to revision 967dfa72eaa149af854c6c38cb64e28b4961a480, a=testonly


/*
** 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;

void main (void)
{
	const float M_PI = 3.14159265358979323846;
	vec2 c = 2.0 * (color.rg - 0.5);
	gl_FragColor = vec4(asin(c) / M_PI + 0.5, 0.0, 1.0);
}