public static D2D_POINT_2U Point2U([NativeTypeName("UINT32")] uint x = 0, [NativeTypeName("UINT32")] uint y = 0)
{
D2D_POINT_2U point = new D2D_POINT_2U {
x = x,
y = y,
};
return(point);
}
/// <summary>
/// Creates an <see cref="ID2D1Bitmap1"/> instance and copies data from a source bitmap.
/// </summary>
/// <param name="d2D1DeviceContext">The input <see cref="ID2D1DeviceContext"/> instance to use to create the bitmap.</param>
/// <param name="d2D1Bitmap">The input <see cref="ID2D1Bitmap1"/> to read data from.</param>
/// <param name="d2D1MappedRect">The resulting <see cref="D2D1_MAPPED_RECT"/> for the bitmap.</param>
/// <returns>A new <see cref="ID2D1Bitmap1"/> instance.</returns>
public static unsafe ComPtr <ID2D1Bitmap1> CreateD2D1Bitmap1Buffer(ID2D1DeviceContext *d2D1DeviceContext, ID2D1Bitmap *d2D1Bitmap, out D2D1_MAPPED_RECT d2D1MappedRect)
{
D2D_SIZE_U d2DSize = d2D1Bitmap->GetPixelSize();
D2D1_BITMAP_PROPERTIES1 d2DBitmapProperties1Buffer = default;
d2DBitmapProperties1Buffer.pixelFormat.format = DXGI_FORMAT.DXGI_FORMAT_B8G8R8A8_UNORM;
d2DBitmapProperties1Buffer.pixelFormat.alphaMode = D2D1_ALPHA_MODE.D2D1_ALPHA_MODE_PREMULTIPLIED;
d2DBitmapProperties1Buffer.bitmapOptions = D2D1_BITMAP_OPTIONS.D2D1_BITMAP_OPTIONS_CPU_READ | D2D1_BITMAP_OPTIONS.D2D1_BITMAP_OPTIONS_CANNOT_DRAW;
using ComPtr <ID2D1Bitmap1> d2D1Bitmap1Buffer = default;
// Create a buffer D2D1 bitmap
d2D1DeviceContext->CreateBitmap(
size: d2DSize,
sourceData: null,
pitch: 0,
bitmapProperties: &d2DBitmapProperties1Buffer,
bitmap: d2D1Bitmap1Buffer.GetAddressOf()).Assert();
D2D_POINT_2U d2DPointDestination = default;
D2D_RECT_U d2DRectSource = new(0, 0, d2DSize.width, d2DSize.height);
// Copy the image from the target to the readback bitmap
d2D1Bitmap1Buffer.Get()->CopyFromBitmap(
destPoint: &d2DPointDestination,
bitmap: d2D1Bitmap,
srcRect: &d2DRectSource);
fixed(D2D1_MAPPED_RECT *d2D1MappedRectPtr = &d2D1MappedRect)
{
// Map the buffer bitmap
d2D1Bitmap1Buffer.Get()->Map(
options: D2D1_MAP_OPTIONS.D2D1_MAP_OPTIONS_READ,
mappedRect: d2D1MappedRectPtr).Assert();
}
return(d2D1Bitmap1Buffer.Move());
}
public HRESULT Draw(ID2D1Bitmap1 *target, [NativeTypeName("const D2D1_RECT_L *")] RECT *drawRect, [NativeTypeName("D2D1_POINT_2U")] D2D_POINT_2U targetOrigin)
{
return(((delegate * unmanaged <ID2D1SourceTransform *, ID2D1Bitmap1 *, RECT *, D2D_POINT_2U, int>)(lpVtbl[8]))((ID2D1SourceTransform *)Unsafe.AsPointer(ref this), target, drawRect, targetOrigin));
}
