private static BufferObject CreateCursor(IntPtr gbm, MouseCursor cursor)
{
if (cursor.Width > 64 || cursor.Height > 64)
{
Debug.Print("[KMS] Cursor size {0}x{1} unsupported. Maximum is 64x64.",
cursor.Width, cursor.Height);
return(default(BufferObject));
}
int width = 64;
int height = 64;
SurfaceFormat format = SurfaceFormat.ARGB8888;
SurfaceFlags usage = SurfaceFlags.Cursor64x64 | SurfaceFlags.Write;
Debug.Print("[KMS] Gbm.CreateBuffer({0:X}, {1}, {2}, {3}, {4}).",
gbm, width, height, format, usage);
BufferObject bo = Gbm.CreateBuffer(
gbm, width, height, format, usage);
if (bo == BufferObject.Zero)
{
Debug.Print("[KMS] Failed to create buffer.");
return(bo);
}
// Copy cursor.Data into a new buffer of the correct size
byte[] cursor_data = new byte[width * height * 4];
for (int y = 0; y < cursor.Height; y++)
{
int dst_offset = y * width * 4;
int src_offset = y * cursor.Width * 4;
int src_length = cursor.Width * 4;
Array.Copy(
cursor.Data, src_offset,
cursor_data, dst_offset,
src_length);
}
bo.Write(cursor_data);
return(bo);
}