public void CopyToBitmap(Rectangle imageArea, IntPtr bitmap, int bitmapStride)
{
NativeBitmapSourceParameterValidation.CopyToBitmap(this, imageArea, bitmap, bitmapStride, out int requiredBufferSize);
if (imageArea.Width <= 0 || imageArea.Height <= 0)
{
return;
}
WICRect rect = new WICRect(imageArea.X, imageArea.Y, imageArea.Width, imageArea.Height);
source.CopyPixels(rect, (uint)bitmapStride, (uint)requiredBufferSize, bitmap);
}
public void CopyToBitmap(Rectangle imageArea, IntPtr bitmap, int bitmapStride)
{
NativeBitmapSourceParameterValidation.CopyToBitmap(this, imageArea, bitmap, bitmapStride, out _);
GCHandle pixelsHandle = GCHandle.Alloc(Pixels, GCHandleType.Pinned);
try
{
IntPtr pixelsPtr = pixelsHandle.AddrOfPinnedObject() + (imageArea.Y * Width + imageArea.X) * 4;
PixelConverter.Convert_PARGB_32_To_ARGB_32(pixelsPtr, Width * 4, bitmap, bitmapStride, imageArea.Width, imageArea.Height);
}
finally
{
pixelsHandle.Free();
}
}
public void CopyToBitmap(Rectangle imageArea, IntPtr bitmap, int bitmapStride)
{
NativeBitmapSourceParameterValidation.CopyToBitmap(this, imageArea, bitmap, bitmapStride, out _);
if (pixelFormat == PixelFormat.RGBA_32)
{
IntPtr pixelsPtr = dataPtr + imageArea.Y * stride + imageArea.X * 4;
PixelConverter.Convert_RGBA_32BE_To_ARGB_32(pixelsPtr, stride, bitmap, bitmapStride, imageArea.Width, imageArea.Height);
}
else if (pixelFormat == PixelFormat.RGB_24)
{
IntPtr pixelsPtr = dataPtr + imageArea.Y * stride + imageArea.X * 3;
PixelConverter.Convert_RGB_24BE_To_ARGB_32(pixelsPtr, stride, bitmap, bitmapStride, imageArea.Width, imageArea.Height);
}
else
{
throw new InvalidOperationException($"Unexpected pixel format: {pixelFormat}.");
}
}
public void CopyFromBitmap(Rectangle imageArea, IntPtr bitmap, int bitmapStride)
{
// todo: create separate validation ?
NativeBitmapSourceParameterValidation.CopyToBitmap(this, imageArea, bitmap, bitmapStride, out _);
using (X11Bitmap xBitmap = X11Bitmap.Create(Display, Visual, imageArea.Width, imageArea.Height))
{
PixelConverter.Convert_ARGB_32_To_PARGB_32(bitmap, bitmapStride, xBitmap.ImageData, imageArea.Width * 4, imageArea.Width, imageArea.Height);
var gcValues = new XGCValues();
var gc = LibX11.XCreateGC(Display, PixmapId, 0, ref gcValues);
try
{
LibX11.XPutImage(Display, PixmapId, gc, xBitmap.XImage, 0, 0, imageArea.X, imageArea.Y, (uint)imageArea.Width, (uint)imageArea.Height);
}
finally
{
LibX11.XFreeGC(Display, gc);
}
}
}
public void CopyToBitmap(Rectangle imageArea, IntPtr bitmap, int bitmapStride)
{
NativeBitmapSourceParameterValidation.CopyToBitmap(this, imageArea, bitmap, bitmapStride, out _);
using (X11Bitmap xBitmap = X11Bitmap.Create(Display, Visual, imageArea.Width, imageArea.Height))
{
LibX11.XGetSubImage(
Display,
PixmapId,
imageArea.X,
imageArea.Y,
(uint)imageArea.Width,
(uint)imageArea.Height,
ulong.MaxValue,
XImageFormat.ZPixmap,
xBitmap.XImage,
0,
0
);
PixelConverter.Convert_PARGB_32_To_ARGB_32(xBitmap.ImageData, imageArea.Width * 4, bitmap, bitmapStride, imageArea.Width, imageArea.Height);
}
}