public static void Fill( SimpleImage image, Rectangle rect, byte r, byte g, byte b, byte a )
{
for( int y = rect.Top; y < rect.Bottom; ++y )
for( int x = rect.Left; x < rect.Right; ++x )
{
image.Data[image.Channels*(y*image.Width+x)+0] = r;
image.Data[image.Channels*(y*image.Width+x)+1] = g;
image.Data[image.Channels*(y*image.Width+x)+2] = b;
image.Data[image.Channels*(y*image.Width+x)+3] = a;
}
}
public static void Copy(SimpleImage dest, Point dest_offset, SimpleImage src, Rectangle src_rect)
{
int width = System.Math.Min(dest.Width - dest_offset.X, src_rect.Width);
int height = System.Math.Min(dest.Height - dest_offset.Y, src_rect.Height);
int channels = System.Math.Min(dest.Channels, src.Channels);
for (int j = 0; j < height; ++j)
for (int i = 0; i < width; ++i)
{
int i1 = ((j + dest_offset.Y) * dest.Width + (i + dest_offset.X)) * dest.Channels;
int i2 = ((j + src_rect.Y) * src.Width + (i + src_rect.X)) * src.Channels;
for (int c = 0; c < channels; ++c)
dest.Data[i1 + c] = src.Data[i2 + c];
}
}
void SetupDataAndInfo()
{
int PageTableSizeLog2 = MathExtensions.Log2(info.PageTableSize);
tabledata = new SlimDX.DataBox[PageTableSizeLog2+1];
regions = new D3D10.ResourceRegion[PageTableSizeLog2+1];
data = new SimpleImage[PageTableSizeLog2+1];
for( int i = 0; i < PageTableSizeLog2+1; ++i )
{
int size = info.PageTableSize >> i;
SlimDX.DataStream stream = new SlimDX.DataStream( size * size * VirtualTexture.ChannelCount, false, true );
tabledata[i] = new SlimDX.DataBox( size * VirtualTexture.ChannelCount, size * size * VirtualTexture.ChannelCount, stream );
D3D10.ResourceRegion region = new D3D10.ResourceRegion();
region.Left = 0; region.Right = size;
region.Top = 0; region.Bottom = size;
region.Front = 0; region.Back = 1;
regions[i] = region;
data[i] = new SimpleImage( size, size, VirtualTexture.ChannelCount );
}
}
static void Write( Quadtree node, SimpleImage image, int miplevel )
{
if( node.Level >= miplevel )
{
int rx = node.Rectangle.X >> miplevel;
int ry = node.Rectangle.Y >> miplevel;
int rw = node.Rectangle.Width >> miplevel;
int rh = node.Rectangle.Height >> miplevel;
SimpleImage.Fill( image, new Rectangle( rx, ry, rw, rh ), (byte)node.Mapping.X, (byte)node.Mapping.Y, (byte)node.Level, 255 );
foreach( Quadtree child in node.Children )
if( child != null )
Quadtree.Write( child, image, miplevel );
}
}
public void Write( SimpleImage image, int miplevel )
{
Quadtree.Write( this, image, miplevel );
}
