/// <summary>
/// Creates a new instance of <see cref="SwapChain"/>.
/// </summary>
/// <param name="renderSystem">Render system used to create the underlying implementation.</param>
/// <param name="windowHandle">The handle to the window the swap chain is to bounded to. This is the window that the swap chain
/// presents to.</param>
/// <exception cref="System.ArgumentNullException">Thrown if the render system is null.</exception>
/// <param name="presentParams">The presentation parameters defining how the swap chain should be setup..</param>
/// <exception cref="System.ArgumentException">Thrown if the presentation parameters are invalid, e.g. bad format or multi sample values.</exception>
/// <exception cref="Tesla.Core.TeslaException">Thrown if the implementation failed to be created.</exception>
public SwapChain(IRenderSystemProvider renderSystem, IntPtr windowHandle, PresentationParameters presentParams)
{
if (renderSystem == null)
{
Dispose();
throw new ArgumentNullException("renderSystem", "Render system cannot be null.");
}
base.RenderSystem = renderSystem;
//Check format compatibility
bool goodFormat = renderSystem.DefaultAdapter.QueryBackBufferFormat(presentParams.BackBufferFormat, presentParams.DepthStencilFormat, presentParams.MultiSampleCount);
int sampleQual = renderSystem.DefaultAdapter.QueryMultiSampleQualityLevels(presentParams.BackBufferFormat, presentParams.MultiSampleQuality);
int levels = presentParams.MultiSampleQuality;
if (goodFormat && (levels >= 0 && levels <= sampleQual))
{
try {
_impl = renderSystem.CreateSwapChainImplementation(windowHandle, presentParams);
} catch (Exception e) {
Dispose();
throw new TeslaException("Error creating underlying implementation, see inner exception for details.", e);
}
}
else
{
Dispose();
throw new ArgumentException("Invalid presentation parameters.");
}
}