/// <summary>Initialize the object.</summary>
public void initialize(iRenderingContext rc, Rational?displayRefresh)
{
if (null != renderContext)
{
throw new ApplicationException("Already initialized");
}
dispatcher = Dispatcher.currentDispatcher;
this.displayRefresh = displayRefresh;
if (null == dispatcher)
{
throw new ApplicationException("Context.initialize requires the current thread to have a dispatcher");
}
renderContext = rc;
context = rc.context;
swapChain = rc.swapChain;
if (rc is iDiligentWindow window)
{
dpiScalingFactor = window.dpiScaling;
}
using (var device = rc.device)
{
isOpenGlDevice = device.isGlDevice();
var scDesc = swapChain.GetDesc();
swapChainSize = new CSize(scDesc.Width, scDesc.Height);
swapChainFormats = new SwapChainFormats(scDesc.ColorBufferFormat, scDesc.DepthBufferFormat, getSampleCount(swapChain));
swapChainBuffersCount = scDesc.BufferCount;
animation = new Animations(this);
scene.createResources(this, device);
}
initializeAsync();
}
/// <summary>Save 8 bit/pixel grayscale TGA image</summary>
public static void saveGrayscale(Stream stm, ReadOnlySpan <byte> data, CSize size, int stride)
{
if (stride < size.cx || size.cx <= 0 || size.cy <= 0)
{
throw new ArgumentOutOfRangeException();
}
if (size.cx >= 0x10000 || size.cy >= 0x10000)
{
throw new ArgumentOutOfRangeException();
}
if (data.Length != size.cy * stride)
{
throw new ArgumentException();
}
TgaHeader header = new TgaHeader()
{
ColorMapType = eColorMapType.None,
ImageType = eImageType.Grayscale,
// By default, rows order in TGAs is bottom to top. Not what we want. That's why setting bit #5 of the ImageDescriptor header field.
ImageDescriptor = 0b00100000,
Width = (ushort)size.cx,
Height = (ushort)size.cy,
PixelDepth = 8,
};
{
// The usability is not great, BTW
var span1 = MemoryMarshal.CreateReadOnlySpan(ref header, 1);
var span2 = MemoryMarshal.Cast <TgaHeader, byte>(span1);
stm.Write(span2);
}
if (stride == size.cx)
{
// No padding whatsoever, write the complete file in 1 shot
stm.Write(data);
}
else
{
// Rows have padding, need to skip stuff.
for (int y = 0; y < size.cy; y++)
{
int off = y * stride;
stm.Write(data.Slice(off, size.cx));
}
}
}
void iContent.swapChainRecreated(iDiligentWindow window)
{
try
{
swapChain = window.swapChain;
context = window.context;
timersHardPause?.Dispose();
timersHardPause = null;
var scDesc = swapChain.GetDesc();
swapChainSize = new CSize(scDesc.Width, scDesc.Height);
byte samples = swapChainFormats.sampleCount;
swapChainFormats = new SwapChainFormats(scDesc.ColorBufferFormat, scDesc.DepthBufferFormat, samples);
swapChainBuffersCount = scDesc.BufferCount;
}
catch (Exception ex)
{
NativeContext.cacheException(ex);
throw;
}
}