internal static extern int /*HRESULT*/
GetBitmap(
SafeMILHandle /* IMILRenderTargetBitmap */ THIS_PTR,
out BitmapSourceSafeMILHandle /* IWICBitmap */ ppIBitmap);
// ISupportInitialize
///
/// Create the unmanaged resources
///
internal override void FinalizeCreation()
{
BitmapSourceSafeMILHandle wicClipper = null;
BitmapSourceSafeMILHandle wicTransformer = null;
BitmapSourceSafeMILHandle transformedSource = _unmanagedSource;
HRESULT.Check(UnsafeNativeMethods.WICBitmap.SetResolution(_unmanagedSource, 96, 96));
using (FactoryMaker factoryMaker = new FactoryMaker())
{
IntPtr wicFactory = factoryMaker.ImagingFactoryPtr;
if (!_sourceRect.IsEmpty)
{
HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateBitmapClipper(
wicFactory,
out wicClipper));
lock (_syncObject)
{
HRESULT.Check(UnsafeNativeMethods.WICBitmapClipper.Initialize(
wicClipper,
transformedSource,
ref _sourceRect));
}
transformedSource = wicClipper;
}
if (_sizeOptions != null)
{
if (_sizeOptions.DoesScale)
{
Debug.Assert(_sizeOptions.Rotation == Rotation.Rotate0);
uint width, height;
_sizeOptions.GetScaledWidthAndHeight(
(uint)_sizeOptions.PixelWidth,
(uint)_sizeOptions.PixelHeight,
out width,
out height);
HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateBitmapScaler(
wicFactory,
out wicTransformer));
lock (_syncObject)
{
HRESULT.Check(UnsafeNativeMethods.WICBitmapScaler.Initialize(
wicTransformer,
transformedSource,
width,
height,
WICInterpolationMode.Fant));
}
}
else if (_sizeOptions.Rotation != Rotation.Rotate0)
{
HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateBitmapFlipRotator(
wicFactory,
out wicTransformer));
lock (_syncObject)
{
HRESULT.Check(UnsafeNativeMethods.WICBitmapFlipRotator.Initialize(
wicTransformer,
transformedSource,
_sizeOptions.WICTransformOptions));
}
}
if (wicTransformer != null)
{
transformedSource = wicTransformer;
}
}
WicSourceHandle = transformedSource;
// Since the original source is an HICON, HBITMAP or section, we know it's cached.
// FlipRotate and Clipper do not affect our cache performance.
_isSourceCached = true;
}
CreationCompleted = true;
UpdateCachedSettings();
}
internal static extern void GetBackBuffer(
SafeMILHandle /* CSwDoubleBufferedBitmap */ THIS_PTR,
out BitmapSourceSafeMILHandle /* IWICBitmap */ pBackBuffer,
out uint pBackBufferSize
);
