layout/reftests/filters.svg

   1 <?xml version="1.0"?>
   2 <svg xmlns="http://www.w3.org/2000/svg" version="1.1">
   3   <defs>
   4
   5     <!-- so that other documents can svg:use this one and force it to
   6          load before onload -->
   7     <g id="empty" />
   8
   9     <!-- Keep all black pixels black, and change any others to white. -->
  10     <!-- NOTE: alpha is preserved, so it will not adjust alpha edges -->
  11     <filter id="NonBlackToWhite" x="0%" y="0%" width="100%" height="100%">
  12       <feColorMatrix type="matrix" values="255 255 255 0 0
  13                                            255 255 255 0 0
  14                                            255 255 255 0 0
  15                                            0 0 0 1 0" />
  16     </filter>
  17
  18     <!-- Keep all white pixels white, and change any others to black. -->
  19     <!-- NOTE: alpha is preserved, so it will not adjust alpha edges -->
  20     <filter id="NonWhiteToBlack" x="0%" y="0%" width="100%" height="100%">
  21       <feComponentTransfer>
  22         <feFuncR type="linear" slope="-1" intercept="1" />
  23         <feFuncG type="linear" slope="-1" intercept="1" />
  24         <feFuncB type="linear" slope="-1" intercept="1" />
  25       </feComponentTransfer>
  26       <feColorMatrix type="matrix" values="255 255 255 0 0
  27                                            255 255 255 0 0
  28                                            255 255 255 0 0
  29                                            0 0 0 1 0" />
  30       <feComponentTransfer>
  31         <feFuncR type="linear" slope="-1" intercept="1" />
  32         <feFuncG type="linear" slope="-1" intercept="1" />
  33         <feFuncB type="linear" slope="-1" intercept="1" />
  34       </feComponentTransfer>
  35     </filter>
  36
  37     <!-- Threshold colours into sixteen steps per channel. -->
  38     <filter id="ThresholdRGB" x="0%" y="0%" width="100%" height="100%" color-interpolation-filters="sRGB">
  39       <feComponentTransfer>
  40         <feFuncR type="discrete" tableValues="0 .125 .25 .375 .5 .625 .75 .875 1" />
  41         <feFuncG type="discrete" tableValues="0 .125 .25 .375 .5 .625 .75 .875 1" />
  42         <feFuncB type="discrete" tableValues="0 .125 .25 .375 .5 .625 .75 .875 1" />
  43       </feComponentTransfer>
  44     </filter>
  45
  46   </defs>
  47 </svg>