internal static ResizedFrame GetResizedFrame(Frame frame, Size renderSize)
{
var settings = EngineConfiguration.Open().Settings;
ResizedFrame resizedFrame;
if (ResizedFrameCache.TryGetValue(GetId(frame, renderSize), out resizedFrame) == false)
{
resizedFrame = new ResizedFrame(frame, renderSize);
// check cache limit; if over, trim cache
while (ResizedFrameCache.Count > settings.ResizedFrameCacheLimit)
{
var oldestInCache = ResizedFrameCache.OrderBy(kvp => kvp.Value.CreationTick).First();
var oldResizedFrame = oldestInCache.Value;
ResizedFrameCache.Remove(oldestInCache.Key);
oldResizedFrame.Dispose();
}
}
return(resizedFrame);
}
private void DrawTile(Tile tile, ref IntPtr hDC)
{
Rectangle tileLoc = tile.DrawLocation;
// redraw each "refresh area"
foreach (Rectangle refreshRect in tile.DrawLocationRefresh)
{
// clip the DrawLocationRefresh to Backbuffer if necessary
Rectangle tempRefreshLoc = Rectangle.Intersect(refreshRect, range);
// if the Tile is outside the range, has no Tilesheet, or is not visible, return without blitting
if ((tempRefreshLoc.IsEmpty) || (tile.CurrentFrame.Tilesheet == null) || (tile.Visible == false))
{
return;
}
// check if source Frame needs to be resized
ResizedFrame resizedFrame = null;
if (tileLoc.Size != tile.CurrentFrame.Tilesheet.TileSize)
{
resizedFrame = ResizedFrame.GetResizedFrame(tile.CurrentFrame, tileLoc.Size);
}
// get source refresh range, hDC, and related mask hdc
Rectangle _srcRefreshRange;
IntPtr _srcHDCMask;
IntPtr _srcHDC;
if (resizedFrame == null)
{
// get the source Rectangle being rendered and Graphics / DC handles from the Tilesheet object
_srcRefreshRange = tile.CurrentFrame.Tilesheet.GetSourceRange(tile.CurrentFrame.XTile, tile.CurrentFrame.YTile);
_srcHDC = tile.CurrentFrame.Tilesheet.hDC;
if (tile.CurrentFrame.Tilesheet.Mask != null)
{
_srcHDCMask = tile.CurrentFrame.Tilesheet.Mask.hDC;
}
else
{
_srcHDCMask = default(IntPtr);
}
}
else
{
// get the source Rectangle being rendered and Graphics / DC handles from the ResizedFrame object
_srcRefreshRange = new Rectangle(new Point(0, 0), resizedFrame.RenderSize);
_srcHDCMask = resizedFrame.hDCMask;
_srcHDC = resizedFrame.hDC;
}
// if only refreshing part of the Tile...
if (tileLoc.Size != tempRefreshLoc.Size)
{
// capture just the section of the source Tilesheet that needs to be refreshed on Backbuffer
_srcRefreshRange = GetSourceBmpRangeForRefresh(_srcRefreshRange, tempRefreshLoc, tileLoc);
}
// if the Tilesheet has a mask...
if (tile.CurrentFrame.Tilesheet.Mask != null)
{
// AND the mask
Win32Support.DrawBitmap(hDC, tempRefreshLoc,
_srcHDCMask, _srcRefreshRange,
TernaryRasterOperations.SRCAND);
// PAINT the primary
Win32Support.DrawBitmap(hDC, tempRefreshLoc,
_srcHDC, _srcRefreshRange,
TernaryRasterOperations.SRCPAINT);
}
else
{
// use the specified Tile.RasterOp
Win32Support.DrawBitmap(hDC, tempRefreshLoc,
_srcHDC, _srcRefreshRange, tile.RasterOp);
}
}
}
internal static ResizedFrame GetResizedFrame(Frame frame, Size renderSize)
{
var settings = EngineConfiguration.Open().Settings;
ResizedFrame resizedFrame;
if (ResizedFrameCache.TryGetValue(GetId(frame, renderSize), out resizedFrame) == false)
{
resizedFrame = new ResizedFrame(frame, renderSize);
// check cache limit; if over, trim cache
while (ResizedFrameCache.Count > settings.ResizedFrameCacheLimit)
{
var oldestInCache = ResizedFrameCache.OrderBy(kvp => kvp.Value.CreationTick).First();
var oldResizedFrame = oldestInCache.Value;
ResizedFrameCache.Remove(oldestInCache.Key);
oldResizedFrame.Dispose();
}
}
return resizedFrame;
}
