public void CopyToImage(X11Image image)
{
if (image.Height != height || image.Width != width)
{
throw new InvalidOperationException($"Source size ({width} x {height}) does not match image size ({image.Width} x {image.Height}).");
}
using (X11Bitmap xBitmap = X11Bitmap.Create(image.Display, image.Visual, width, height))
{
if (pixelFormat == PixelFormat.RGBA_32)
{
PixelConverter.Convert_RGBA_32BE_To_PARGB_32(dataPtr, stride, xBitmap.ImageData, 4 * width, width, height);
}
else if (pixelFormat == PixelFormat.RGB_24)
{
PixelConverter.Convert_RGB_24BE_To_ARGB_32(dataPtr, stride, xBitmap.ImageData, 4 * width, width, height);
}
else
{
throw new InvalidOperationException($"Unexpected pixel format: {pixelFormat}.");
}
var gcValues = new XGCValues();
var gc = LibX11.XCreateGC(image.Display, image.PixmapId, 0, ref gcValues);
try
{
LibX11.XPutImage(image.Display, image.PixmapId, gc, xBitmap.XImage, 0, 0, 0, 0, (uint)width, (uint)height);
}
finally
{
LibX11.XFreeGC(image.Display, gc);
}
}
}
public static X11Bitmap Create(IntPtr display, IntPtr visual, int width, int height)
{
if (width < 0 || height < 0)
{
throw new ArgumentException($"Image dimensions cannot be negative ({width} x {height}).");
}
IntPtr imageData = Marshal.AllocHGlobal(4 * width * height);
IntPtr xImage = IntPtr.Zero;
try
{
xImage = LibX11.XCreateImage
(
display,
visual,
X11Application.RequiredColorDepth,
XImageFormat.ZPixmap,
0,
imageData,
(uint)width,
(uint)height,
X11Application.RequiredColorDepth,
width * 4
);
X11Bitmap bitmap = new X11Bitmap(xImage, imageData);
xImage = IntPtr.Zero;
imageData = IntPtr.Zero;
return(bitmap);
}
finally
{
if (xImage != IntPtr.Zero)
{
LibX11.XDestroyImage(xImage);
}
else if (imageData != IntPtr.Zero)
{
Marshal.FreeHGlobal(imageData);
}
}
}
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);
}
}
