/// <summary>
/// Creates an <see cref="ID2D1Bitmap"/> instance.
/// </summary>
/// <param name="d2D1DeviceContext">The input <see cref="ID2D1DeviceContext"/> instance to use to create the bitmap source.</param>
/// <param name="width">The width of the bitmap to create.</param>
/// <param name="height">The height of the bitmap to create.</param>
/// <returns>A new <see cref="ID2D1Bitmap"/> instance.</returns>
public static unsafe ComPtr <ID2D1Bitmap> CreateD2D1BitmapAndSetAsTarget(ID2D1DeviceContext *d2D1DeviceContext, uint width, uint height)
{
D2D_SIZE_U d2DSize;
d2DSize.width = width;
d2DSize.height = height;
D2D1_BITMAP_PROPERTIES1 d2DBitmapProperties1Target = default;
d2DBitmapProperties1Target.pixelFormat.format = DXGI_FORMAT.DXGI_FORMAT_B8G8R8A8_UNORM;
d2DBitmapProperties1Target.pixelFormat.alphaMode = D2D1_ALPHA_MODE.D2D1_ALPHA_MODE_PREMULTIPLIED;
d2DBitmapProperties1Target.bitmapOptions =
D2D1_BITMAP_OPTIONS.D2D1_BITMAP_OPTIONS_TARGET |
D2D1_BITMAP_OPTIONS.D2D1_BITMAP_OPTIONS_CANNOT_DRAW;
using ComPtr <ID2D1Bitmap> d2D1Bitmap1Target = default;
// Create a target D2D1 bitmap
d2D1DeviceContext->CreateBitmap(
size: d2DSize,
sourceData: null,
pitch: 0,
bitmapProperties: &d2DBitmapProperties1Target,
bitmap: (ID2D1Bitmap1 **)d2D1Bitmap1Target.GetAddressOf()).Assert();
d2D1DeviceContext->SetTarget((ID2D1Image *)d2D1Bitmap1Target.Get());
return(d2D1Bitmap1Target.Move());
}
/// <summary>
/// Creates an <see cref="ID2D1Bitmap"/> instance.
/// </summary>
/// <param name="d2D1DeviceContext">The input <see cref="ID2D1DeviceContext"/> instance to use to create the bitmap source.</param>
/// <param name="wicBitmap">The input <see cref="IWICBitmap"/> to use to create the bitmap source.</param>
/// <param name="d2D1Effect">The input <see cref="ID2D1Effect"/> to set the source for.</param>
/// <returns>A new <see cref="ID2D1Bitmap"/> instance.</returns>
public static unsafe ComPtr <ID2D1Bitmap> CreateD2D1BitmapAndSetAsSource(ID2D1DeviceContext *d2D1DeviceContext, IWICBitmap *wicBitmap, ID2D1Effect *d2D1Effect)
{
using ComPtr <ID2D1Bitmap> d2D1BitmapSource = default;
// Create a source D2D1 bitmap from the WIC bitmap
d2D1DeviceContext->CreateBitmapFromWicBitmap(
wicBitmapSource: (IWICBitmapSource *)wicBitmap,
bitmap: d2D1BitmapSource.GetAddressOf()).Assert();
d2D1Effect->SetInput(0, (ID2D1Image *)d2D1BitmapSource.Get());
return(d2D1BitmapSource.Move());
}
/// <summary>
/// Draws a given effect onto a context.
/// </summary>
/// <param name="d2D1DeviceContext">The input <see cref="ID2D1DeviceContext"/> instance to use to draw the effect.</param>
/// <param name="d2D1Effect">The input <see cref="ID2D1Effect"/> to draw.</param>
public static unsafe void DrawEffect(ID2D1DeviceContext *d2D1DeviceContext, ID2D1Effect *d2D1Effect)
{
d2D1DeviceContext->BeginDraw();
// Draw the image with the effect
d2D1DeviceContext->DrawImage(
effect: d2D1Effect,
targetOffset: null,
imageRectangle: null,
interpolationMode: D2D1_INTERPOLATION_MODE.D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR,
compositeMode: D2D1_COMPOSITE_MODE.D2D1_COMPOSITE_MODE_SOURCE_COPY);
d2D1DeviceContext->EndDraw().Assert();
}
/// <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 int RenderPageToDeviceContext(IUnknown *pdfPage, ID2D1DeviceContext *pD2DDeviceContext, PDF_RENDER_PARAMS *pRenderParams)
{
return(((delegate * unmanaged <IPdfRendererNative *, IUnknown *, ID2D1DeviceContext *, PDF_RENDER_PARAMS *, int>)(lpVtbl[4]))((IPdfRendererNative *)Unsafe.AsPointer(ref this), pdfPage, pD2DDeviceContext, pRenderParams));
}
