private Texture2D DownScale(GraphicsDevice graphicsDevice, RenderTarget2D texture, int newsize)
{
Texture2D newtexture = new RenderTarget2D(graphicsDevice, newsize, newsize, true, graphicsDevice.PresentationParameters.BackBufferFormat, DepthFormat.Depth24);
graphicsDevice.SetRenderTarget((RenderTarget2D)newtexture);
GraphicsBasic.DrawSpriteRect(graphicsDevice, 0, 0, newsize, newsize, texture, BlendState.AlphaBlend, Microsoft.Xna.Framework.Color.White);
return(newtexture);
}
private void RebuildImage(GraphicsDevice graphicsDevice, ISector sector)
{
// combination images
using (Texture2D rendered = new RenderTarget2D(graphicsDevice, 512, 512, false, graphicsDevice.PresentationParameters.BackBufferFormat, DepthFormat.Depth24))
{
int highestZoom = ZCoords.GetSectorManager().GetHighestCacheZoom();
foreach (var parent in sector.GetAllParents().OrderBy(x => - x.Zoom).Where(x => x.Zoom <= highestZoom))
{
List <ISector> roadSectors = parent.GetChildrenAtLevel(parent.Zoom == highestZoom - 1 ? ZCoords.GetSectorManager().GetHighestOSMZoom() : parent.Zoom + 1);
Texture2D[] textures = new Texture2D[roadSectors.Count];
for (int i = 0; i < roadSectors.Count; i++)
{
IGraphicsBuffer buffer = null;
if (File.Exists(OSMPaths.GetSectorImagePath(roadSectors[i])))
{
using (var reader = File.OpenRead(OSMPaths.GetSectorImagePath(roadSectors[i])))
{
buffer = new ImageTileBuffer(graphicsDevice, Texture2D.FromStream(graphicsDevice, reader), roadSectors[i]);
}
}
else
{
throw new NotImplementedException();
}
textures[i] = buffer.GetImage(graphicsDevice);
}
if (textures.Any(x => x != null))
{
graphicsDevice.SetRenderTarget((RenderTarget2D)rendered);
for (int i = 0; i < roadSectors.Count; i++)
{
int size, x, y;
size = 512 >> (roadSectors[i].Zoom - parent.Zoom);
x = parent.GetRelativeXOf(roadSectors[i]) * size;
y = parent.GetRelativeYOf(roadSectors[i]) * size;
if (textures[i] != null)
{
GraphicsBasic.DrawSpriteRect(graphicsDevice, x, y, size, size, textures[i], BlendState.AlphaBlend, Microsoft.Xna.Framework.Color.White);
}
}
}
for (int i = 0; i < textures.Length; i++)
{
if (textures[i] != null && textures[i] != GlobalContent.Error)
{
textures[i].Dispose();
}
}
SuperSave(rendered, OSMPaths.GetSectorImagePath(parent));
}
}
}