public void Recreate(GraphicsAdapter adapter, GraphicsProfile[] profile, DeviceCreationFlags deviceCreationFlags, WindowHandle windowHandle)
{
if (adapter == null)
{
throw new ArgumentNullException("adapter");
}
if (profile == null)
{
throw new ArgumentNullException("profile");
}
Adapter = adapter;
IsDebugMode = (deviceCreationFlags & DeviceCreationFlags.Debug) != 0;
// Initialize this instance
InitializePlatformDevice(profile, deviceCreationFlags, windowHandle);
InitializeFactories();
// Create a new graphics device
Features = new GraphicsDeviceFeatures(this);
SamplerStates = new SamplerStateFactory(this);
BlendStates = new BlendStateFactory(this);
RasterizerStates = new RasterizerStateFactory(this);
DepthStencilStates = new DepthStencilStateFactory(this);
currentState = null;
allocatedStates.Clear();
currentStateIndex = -1;
PushState();
ClearState();
}
/// <summary>
/// Clears the state and restore the state of the device.
/// </summary>
public void ClearState()
{
ClearStateImpl();
currentStateIndex = 0;
currentState = allocatedStates[currentStateIndex];
// Setup empty viewports
for (int i = 0; i < currentState.Viewports.Length; i++)
{
currentState.Viewports[i] = new Viewport();
}
// Setup default states
SetBlendState(BlendStates.Default);
SetRasterizerState(RasterizerStates.CullBack);
SetDepthStencilState(DepthStencilStates.Default);
// Setup the default render target
Texture depthStencilBuffer = null;
Texture backBuffer = null;
if (Presenter != null)
{
depthStencilBuffer = Presenter.DepthStencilBuffer;
backBuffer = Presenter.BackBuffer;
}
SetDepthAndRenderTarget(depthStencilBuffer, backBuffer);
}
/// <summary>
/// Restore the state and targets.
/// </summary>
public void PopState()
{
if (currentStateIndex <= 0)
{
throw new InvalidOperationException("Cannot pop more than push");
}
currentStateIndex--;
currentState = allocatedStates[currentStateIndex];
currentState.Restore(this);
}
/// <summary>
/// Pushes the state of <see cref="DepthStencilState"/>, <see cref="RasterizerState"/>, <see cref="BlendState"/> and the Render targets bound to this instance. To restore the state, use <see cref="PopState"/>.
/// </summary>
public void PushState()
{
var previousState = currentState;
// Check if we need to allocate a new StateAndTargets
if (currentStateIndex == (allocatedStates.Count - 1))
{
currentState = new StateAndTargets();
allocatedStates.Add(currentState);
}
currentStateIndex++;
currentState = allocatedStates[currentStateIndex];
currentState.Initialize(this, previousState);
}
/// <summary>
/// Pushes render targets and viewport state.
/// </summary>
public void PushRenderTargets()
{
// Check if we need to allocate a new StateAndTargets
StateAndTargets newState;
currentStateIndex++;
if (currentStateIndex == allocatedStates.Count)
{
newState = new StateAndTargets();
allocatedStates.Add(newState);
}
else
{
newState = allocatedStates[currentStateIndex];
}
newState.Capture(CommandList);
}
public void Initialize(GraphicsDevice device, StateAndTargets parentState)
{
int renderTargetCount = MaxRenderTargetCount;
switch (device.Features.Profile)
{
case GraphicsProfile.Level_9_1:
case GraphicsProfile.Level_9_2:
case GraphicsProfile.Level_9_3:
renderTargetCount = 1;
break;
}
if (RenderTargets == null || RenderTargets.Length != renderTargetCount)
{
RenderTargets = new Texture[renderTargetCount];
Viewports = new Viewport[renderTargetCount];
}
if (parentState != null)
{
this.BlendState = parentState.BlendState;
this.BlendFactor = parentState.BlendFactor;
BlendMultiSampleMask = parentState.BlendMultiSampleMask;
this.DepthStencilState = parentState.DepthStencilState;
this.StencilReference = parentState.StencilReference;
DepthStencilBuffer = parentState.DepthStencilBuffer;
for (int i = 0; i < renderTargetCount; i++)
{
Viewports[i] = parentState.Viewports[i];
RenderTargets[i] = parentState.RenderTargets[i];
}
}
device.needViewportUpdate = true;
}
