public unsafe void PushFrame(IntPtr currentFrame)
{
///////////////
// Choose the best bitmap to do a background render to
BitmapBunch currentBitmapBunch = this.bitmapBunch;
BitmapDefinition bitmapToPrepare = currentBitmapBunch.GetNextPrepareBitmap();
bool highResolution = currentBitmapBunch.HighResolution;
// Determine how much of the image to copy.
int copyHeight = highResolution ? LOW_RES_HEIGHT * 2 : LOW_RES_HEIGHT;
int copyWidth = highResolution ? LOW_RES_WIDTH * 2 : LOW_RES_WIDTH;
// Copy!
CanvasHelper.CopyBitmap(currentFrame, bitmapToPrepare, copyWidth, copyHeight, true, true, this.AutoCrop, currentBitmapBunch.ScalingAlgorithm);
// Consider the newly determined crop rectangle.
cropHelper.ConsiderAlternateCrop(bitmapToPrepare.Crop);
bitmapToPrepare.Crop.Mimic(cropHelper.CurrentCrop);
// And.... we're done.
currentBitmapBunch.SetLastPreparedBitmap(bitmapToPrepare);
// Refresh.
this.TriggerRefresh();
}
private void CreateNewBitmapBunch(bool highResolution, ScalingAlgorithm algorithm)
{
var newBunch = CanvasHelper.CreateNewBitmapBunch(
highResolution, algorithm, LOW_RES_WIDTH, LOW_RES_HEIGHT,
this.bitmapBunch, PixelFormat.Format32bppRgb);
if (newBunch != null)
{
this.bitmapBunch = newBunch;
}
}