Added system limits to all current atlas types

Author: EngineerSmith

baseAtlas.lua

@@ -5,6 +5,7 @@ local baseAtlas = {
     _canvasSettings = {
         dpiscale = 1,
     },
+    _maxCanvasSize =  love.graphics.getSystemLimits().texturesize -1
 }
 baseAtlas.__index = baseAtlas
 

dynamicSize.lua

@@ -2,9 +2,7 @@
 -- Under the MIT license, see license suppiled with this file
 local path = select(1, ...):match("(.-)[^%.]+$")
 local baseAtlas = require(path .. "baseAtlas")
-local dynamicSizeTA = setmetatable({
-    _maxCanvas =  love.graphics.getSystemLimits().texturesize -1
-}, baseAtlas)
+local dynamicSizeTA = setmetatable({}, baseAtlas)
 dynamicSizeTA.__index = dynamicSizeTA
 
 -- Based on BlackPawn's lightmap packing: https://blackpawn.com/texts/lightmaps/default.html
@@ -49,7 +47,7 @@ dynamicSizeTA.bake = function(self, sortBy)
 
         -- Calculate positions and size of canvas
         local maxWidth, maxHeight = 0,0
-        local root = treeNode.new(self._maxCanvas, self._maxCanvas)
+        local root = treeNode.new(self._maxCanvasSize, self._maxCanvasSize)
 
         for _, image in ipairs(shallowCopy) do
             local img = image.image

fixedSize.lua

@@ -7,7 +7,7 @@ local fixedSizeTA = setmetatable({}, baseAtlas)
 fixedSizeTA.__index = fixedSizeTA
 
 local lg = love.graphics
-local ceil, sqrt = math.ceil, math.sqrt
+local ceil, floor, sqrt = math.ceil, math.sqrt, math.floor
 
 fixedSizeTA.new = function(width, height, padding)
     local self = setmetatable(baseAtlas.new(padding), fixedSizeTA)
@@ -26,11 +26,27 @@ end
 
 fixedSizeTA.bake = function(self)
     if self._dirty and not self._hardBake then
-        local columns = ceil(sqrt(#self.images))
+        local columns = ceil(sqrt(self.imagesSize))
         local width, height = self.width, self.height
         local widthPadded, heightPadded = width + self.padding, height + self.padding
-        local rows = ceil(#self.images / columns)
-        local widthCanvas, heightCanvas = columns * widthPadded, rows * heightPadded
+        
+        local widthCanvas = columns * widthPadded
+        if widthCanvas > self._maxCanvasSize then
+            columns = floor(self._maxCanvasSize / width)
+            widthCanvas = columns * widthPadded
+        end
+            
+        local rows = ceil(self.imagesSize / columns)
+        local heightCanvas = rows * heightPadded
+        if heightPadded > self._maxCanvasSize then
+            rows = floor(self._maxCanvasSize / height)
+            heightCanvas = rows * heightPadded
+        end
+        
+        if columns * rows < self.imagesSize then
+            error("Cannot support "..tostring(self.imagesSize).." images, due to system limits of canvas size. Max allowed on this system: "..tostring(columns * rows))
+        end
+        
         local canvas = lg.newCanvas(widthCanvas, heightCanvas, self._canvasSettings)
         local maxIndex = self.imagesSize
         lg.push("all")