1 2/* 3** Copyright (c) 2012 The Khronos Group Inc. 4** 5** Permission is hereby granted, free of charge, to any person obtaining a 6** copy of this software and/or associated documentation files (the 7** "Materials"), to deal in the Materials without restriction, including 8** without limitation the rights to use, copy, modify, merge, publish, 9** distribute, sublicense, and/or sell copies of the Materials, and to 10** permit persons to whom the Materials are furnished to do so, subject to 11** the following conditions: 12** 13** The above copyright notice and this permission notice shall be included 14** in all copies or substantial portions of the Materials. 15** 16** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 19** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 20** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 21** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 22** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. 23*/ 24 25 26#ifdef GL_ES 27precision mediump float; 28#endif 29varying vec4 color; 30 31void main (void) 32{ 33 int setval = 30; 34 35 if(--setval!=29) 36 if( (setval+=11) == 40) 37 if(setval/4 == 11) 38 setval = 11; 39 else if(setval/4 == 10) 40 if(setval-3 == 37) 41 setval=12; 42 else setval = 9; 43 else setval = 10; 44 else setval = 30; 45 else if(setval == 29) 46 if((setval+=19) != 48) 47 setval = 13; 48 else if((setval+=19) == 29) 49 setval = 28; 50 else setval = 53; 51 else setval = 32; 52 float gray; 53 if( setval == 53 ) 54 gray=1.0; 55 else gray=0.0; 56 gl_FragColor = vec4(gray, gray, gray, 1.0); 57} 58