public void UpdateImage(TexturePack containingPack, bool hasTransparency, Bitmap bitmap)
{
if ((bitmap.Size.Width & (bitmap.Size.Width - 1)) != 0)
{
throw new ArgumentException("Bitmap width must be a power of two");
}
if ((bitmap.Size.Height & (bitmap.Size.Height - 1)) != 0)
{
throw new ArgumentException("Bitmap height must be a power of two");
}
int level = (int)Math.Log(Math.Max(bitmap.Size.Width, bitmap.Size.Height), 2);
Size mipmapSize = bitmap.Size;
int mipLevel = 0;
HasTransparency = hasTransparency;
Mipmaps = new List <MipMap>(level - 1);
for (int i = 0; i < level; i++)
{
MipMap mipmap = new MipMap(level--, mipmapSize);
using (Bitmap scaledBitmap = ScaleBitmap(bitmap, mipLevel))
{
mipmap.UpdateImage(scaledBitmap, mipLevel, HasTransparency, containingPack.TransparentPaletteIndex);
mipLevel++;
}
Mipmaps.Add(mipmap);
mipmapSize = new Size(mipmapSize.Width >> 1, mipmapSize.Height >> 1);
}
}
public override void Deserialise(MfcDeserialiser archive)
{
base.Deserialise(archive);
var flags = archive.DeserialiseUInt16();
this.HasTransparency = (flags & 1) != 0;
if ((flags & ~1) != 0)
{
throw new NotImplementedException("Unexpected flag set in texture header");
}
ushort mipmapCount = archive.DeserialiseUInt16();
this.Mipmaps = new List <MipMap>(mipmapCount);
for (int i = 0; i < mipmapCount; i++)
{
MipMap mipmap = new MipMap();
var nextLargestHeight = archive.DeserialiseUInt16();
var imageHeight = archive.DeserialiseUInt16();
var nextLargestWidth = archive.DeserialiseUInt16();
var imageWidth = archive.DeserialiseUInt16();
mipmap.ImageDimensionsMinusOne = new Size(imageWidth, imageHeight);
mipmap.ImageDimensions = new Size(nextLargestWidth, nextLargestHeight);
mipmap.Level = archive.DeserialiseUInt16();
var imageDataLength = archive.DeserialiseUInt32();
mipmap.ImageData = archive.DeserialiseBytes((int)imageDataLength);
int totalSpanCount = (int)archive.DeserialiseUInt32();
mipmap.PixelSpans = new List <List <PixelSpan> >(totalSpanCount);
for (int y = 0; y < nextLargestHeight; y++)
{
ushort rowSpanCount = archive.DeserialiseUInt16();
var rowSpans = new List <PixelSpan>(rowSpanCount);
for (int k = 0; k < rowSpanCount; k++)
{
ushort startIndex = archive.DeserialiseUInt16();
ushort endIndex = archive.DeserialiseUInt16();
rowSpans.Add(new PixelSpan(startIndex, endIndex));
}
mipmap.PixelSpans.Add(rowSpans);
}
archive.DeserialiseObjectNoHeader <TrailingBytes>();
this.Mipmaps.Add(mipmap);
}
}
