static ImagePackNode InternalPack(RectInt[] rects, int padding)
{
if (rects == null || rects.Length == 0)
{
return new ImagePackNode()
{
rect = new RectInt(0, 0, 0, 0)
}
}
;
var sortedRects = new ImagePackRect[rects.Length];
for (int i = 0; i < rects.Length; ++i)
{
sortedRects[i] = new ImagePackRect();
sortedRects[i].rect = rects[i];
sortedRects[i].index = i;
}
Array.Sort <ImagePackRect>(sortedRects);
var root = new ImagePackNode();
root.rect = new RectInt(0, 0, (int)NextPowerOfTwo((ulong)rects[0].width), (int)NextPowerOfTwo((ulong)rects[0].height));
for (int i = 0; i < rects.Length; ++i)
{
if (!root.Insert(sortedRects[i], padding)) // we can't fit
{
int newWidth = root.rect.width, newHeight = root.rect.height;
if (root.rect.width < root.rect.height)
{
newWidth = (int)NextPowerOfTwo((ulong)root.rect.width + 1);
}
else
{
newHeight = (int)NextPowerOfTwo((ulong)root.rect.height + 1);
}
// Reset all packing and try again
root = new ImagePackNode();
root.rect = new RectInt(0, 0, newWidth, newHeight);
i = -1;
}
}
return(root);
}
static ImagePackNode InternalPack(RectInt[] rects, int padding)
{
var sortedRects = new ImagePackRect[rects.Length];
for (int i = 0; i < rects.Length; ++i)
{
sortedRects[i] = new ImagePackRect();
sortedRects[i].rect = rects[i];
sortedRects[i].index = i;
}
Array.Sort <ImagePackRect>(sortedRects);
var root = new ImagePackNode();
root.rect = new RectInt(0, 0, 32, 32);
for (int i = 0; i < rects.Length; ++i)
{
if (!root.Insert(sortedRects[i], padding)) // we can't fit
{
int newWidth = 0, newHeight = 0;
if (root.rect.width < root.rect.height)
{
newWidth = (int)NextPowerOfTwo((ulong)root.rect.width + 1);
}
else
{
newHeight = (int)NextPowerOfTwo((ulong)root.rect.height + 1);
}
if (newWidth > k_MaxTextureSize || newHeight > k_MaxTextureSize)
{
Debug.LogAssertion("unable to pack, reached max texture size");
break;
}
root.AdjustSize(newWidth, newHeight);
--i;
}
}
return(root);
}