protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing)
{
// TODO: dispose managed state (managed objects).
}
if (_oldObject != IntPtr.Zero)
{
Gdi32.SelectObject(DeviceContext, _oldObject);
}
if (BitmapHandle != IntPtr.Zero)
{
Gdi32.DeleteObject(BitmapHandle);
}
if (DeviceContext != IntPtr.Zero)
{
Gdi32.DeleteDC(DeviceContext);
}
_disposed = true;
}
}
public void Render(int[] vram)
{
//Console.WriteLine($"x1 {displayX1} x2 {displayX2} y1 {displayY1} y2 {displayY2}");
int horizontalEnd = horizontalRes;
int verticalEnd = verticalRes;
if (isVramViewer)
{
horizontalEnd = 1024;
verticalEnd = 512;
Marshal.Copy(vram, 0, display.BitmapData, 0x80000);
}
else if (is24BitDepth)
{
blit24bpp(vram);
}
else
{
blit16bpp(vram);
}
fps++;
using var deviceContext = new GdiDeviceContext(screen.Handle);
Gdi32.StretchBlt(deviceContext, 0, 0, screen.Width, screen.Height,
display.DeviceContext, 0, 0, horizontalEnd, verticalEnd,
RasterOp.SRCCOPY);
}
public GdiBitmap(int width, int height)
{
Width = width;
Height = height;
DeviceContext = Gdi32.CreateCompatibleDC(IntPtr.Zero);
var bitmapHeader = new BitmapInfoHeader
{
biSize = (uint)Marshal.SizeOf <BitmapInfoHeader>(),
biWidth = width,
biHeight = -height, // negative, top-down bitmap
biPlanes = 1,
biBitCount = (ushort)(8 * BytesPerPixel),
biCompression = BitmapCompression.BI_RGB,
};
var bitmapInfo = new BitmapInfo
{
bmiHeader = bitmapHeader,
};
BitmapHandle = Gdi32.CreateDIBSection(DeviceContext, in bitmapInfo, ColorUsage.DIB_RGB_COLORS,
out BitmapData, IntPtr.Zero, 0);
_oldObject = Gdi32.SelectObject(DeviceContext, BitmapHandle);
}
