Library/PackageCache/com.unity.render-pipelines.high-definition@4.10.0-preview/Runtime/Core/Utilities/TileLayoutUtils.cs

   1 namespace UnityEngine.Experimental.Rendering
   2 {
   3     public static class TileLayoutUtils
   4     {
   5         public static bool TryLayoutByTiles(
   6             RectInt src,
   7             uint tileSize,
   8             out RectInt main,
   9             out RectInt topRow,
  10             out RectInt rightCol,
  11             out RectInt topRight)
  12         {
  13             if (src.width < tileSize || src.height < tileSize)
  14             {
  15                 main = RectInt.zero;
  16                 topRow = RectInt.zero;
  17                 rightCol = RectInt.zero;
  18                 topRight = RectInt.zero;
  19                 return false;
  20             }
  21
  22             int mainRows = src.height / (int)tileSize;
  23             int mainCols = src.width / (int)tileSize;
  24             int mainWidth = mainCols * (int)tileSize;
  25             int mainHeight = mainRows * (int)tileSize;
  26
  27             main = new RectInt
  28             {
  29                 x = src.x,
  30                 y = src.y,
  31                 width = mainWidth,
  32                 height = mainHeight,
  33             };
  34             topRow = new RectInt
  35             {
  36                 x = src.x,
  37                 y = src.y + mainHeight,
  38                 width = mainWidth,
  39                 height = src.height - mainHeight
  40             };
  41             rightCol = new RectInt
  42             {
  43                 x = src.x + mainWidth,
  44                 y = src.y,
  45                 width = src.width - mainWidth,
  46                 height = mainHeight
  47             };
  48             topRight = new RectInt
  49             {
  50                 x = src.x + mainWidth,
  51                 y = src.y + mainHeight,
  52                 width = src.width - mainWidth,
  53                 height = src.height - mainHeight
  54             };
  55
  56             return true;
  57         }
  58
  59         public static bool TryLayoutByRow(
  60             RectInt src,
  61             uint tileSize,
  62             out RectInt main,
  63             out RectInt other)
  64         {
  65             if (src.height < tileSize)
  66             {
  67                 main = RectInt.zero;
  68                 other = RectInt.zero;
  69                 return false;
  70             }
  71
  72             int mainRows = src.height / (int)tileSize;
  73             int mainHeight = mainRows * (int)tileSize;
  74
  75             main = new RectInt
  76             {
  77                 x = src.x,
  78                 y = src.y,
  79                 width = src.width,
  80                 height = mainHeight,
  81             };
  82             other = new RectInt
  83             {
  84                 x = src.x,
  85                 y = src.y + mainHeight,
  86                 width = src.width,
  87                 height = src.height - mainHeight
  88             };
  89
  90             return true;
  91         }
  92
  93         public static bool TryLayoutByCol(
  94             RectInt src,
  95             uint tileSize,
  96             out RectInt main,
  97             out RectInt other)
  98         {
  99             if (src.width < tileSize)
 100             {
 101                 main = RectInt.zero;
 102                 other = RectInt.zero;
 103                 return false;
 104             }
 105
 106             int mainCols = src.width / (int)tileSize;
 107             int mainWidth = mainCols * (int)tileSize;
 108
 109             main = new RectInt
 110             {
 111                 x = src.x,
 112                 y = src.y,
 113                 width = mainWidth,
 114                 height = src.height,
 115             };
 116             other = new RectInt
 117             {
 118                 x = src.x + mainWidth,
 119                 y = src.y,
 120                 width = src.width - mainWidth,
 121                 height = src.height
 122             };
 123
 124             return true;
 125         }
 126     }
 127 }