/// <summary>
/// Function to update the current render target.
/// </summary>
/// <param name="target">The new target.</param>
private void UpdateTarget(ref Gorgon2DTarget target)
{
// If we currently have a swap chain bound, then we need to unbind its resize event.
if (_currentTarget.SwapChain != null)
{
_currentTarget.SwapChain.AfterSwapChainResized -= target_Resized;
}
if (!Gorgon2DTarget.Equals(ref target, ref _currentTarget))
{
if (target.Target != _currentTarget.Target)
{
Graphics.Output.SetRenderTarget(target.Target, DepthStencil ?? target.DepthStencil);
}
_currentTarget = target;
// If the current render target is the default render target, then copy the current target settings
// into the default. This is just in case we've resized the current target and the default is out
// of sync.
if (_defaultTarget.Target == _currentTarget.Target)
{
_defaultTarget = _currentTarget;
}
}
// Update camera.
var camera = _camera ?? DefaultCamera;
if (camera.AutoUpdate)
{
camera.ViewDimensions = new RectangleF(Vector2.Zero, new Vector2(_currentTarget.Width, _currentTarget.Height));
}
var clipRegion = ClipRegion;
// Restore the clipping region.
if (clipRegion != null)
{
ClipRegion = null;
ClipRegion = clipRegion;
}
Graphics.Rasterizer.SetViewport(_viewPort ?? _currentTarget.Viewport);
if (_currentTarget.SwapChain == null)
{
return;
}
_currentTarget.SwapChain.AfterSwapChainResized += target_Resized;
}
/// <summary>
/// Function to handle a resize of the current render target.
/// </summary>
/// <param name="sender">Object that sent the event.</param>
/// <param name="e">Event parameters.</param>
private void target_Resized(object sender, GorgonAfterSwapChainResizedEventArgs e)
{
GorgonDepthStencilView depthStencil = _currentTarget.SwapChain.DepthStencilBuffer;
if (DepthStencil != null)
{
depthStencil = DepthStencil;
}
var target = new Gorgon2DTarget(_currentTarget.SwapChain, depthStencil);
UpdateTarget(ref target);
}
/// <summary>
/// Function to set up the renderers initial state.
/// </summary>
private void SetDefaultStates()
{
// Add shader includes if they're gone.
if (!Graphics.Shaders.IncludeFiles.Contains("Gorgon2DShaders"))
{
Graphics.Shaders.IncludeFiles.Add("Gorgon2DShaders", Encoding.UTF8.GetString(Resources.BasicSprite));
}
// Record the initial state before set up.
if (_initialState == null)
{
_initialState = new Gorgon2DStateRecall(this);
}
// Reset the cache values.
_cache.Reset();
// Set our default shaders.
VertexShader.Current = VertexShader.DefaultVertexShader;
PixelShader.Current = PixelShader.DefaultPixelShaderDiffuse;
Graphics.Input.IndexBuffer = DefaultIndexBuffer;
Graphics.Input.VertexBuffers[0] = DefaultVertexBufferBinding;
Graphics.Input.Layout = DefaultLayout;
Graphics.Input.PrimitiveType = PrimitiveType.TriangleList;
IsMultisamplingEnabled = Graphics.Rasterizer.States.IsMultisamplingEnabled;
if (PixelShader != null)
{
GorgonTextureSamplerStates sampler = GorgonTextureSamplerStates.LinearFilter;
sampler.TextureFilter = TextureFilter.Point;
Graphics.Shaders.PixelShader.TextureSamplers[0] = sampler;
Graphics.Shaders.PixelShader.Resources[0] = null;
}
Graphics.Rasterizer.States = GorgonRasterizerStates.CullBackFace;
Graphics.Output.BlendingState.States = GorgonBlendStates.DefaultStates;
Graphics.Output.DepthStencilState.States = GorgonDepthStencilStates.NoDepthStencil;
Graphics.Output.DepthStencilState.StencilReference = 0;
Graphics.Output.SetRenderTarget(_defaultTarget.Target, _defaultTarget.DepthStencil);
_currentTarget = _defaultTarget;
UpdateTarget(ref _currentTarget);
DefaultCamera.Update();
// Get the current state.
DefaultState = new Gorgon2DStateRecall(this);
// By default, turn on multi sampling over a count of 1.
if (Target.Resource.ResourceType != ResourceType.Texture2D)
{
return;
}
var target2D = (GorgonRenderTarget2D)Target.Resource;
if ((!IsMultisamplingEnabled) &&
((target2D.Settings.Multisampling.Count > 1) || (target2D.Settings.Multisampling.Quality > 0)) &&
((Graphics.VideoDevice.SupportedFeatureLevel == DeviceFeatureLevel.SM4_1) ||
(Graphics.VideoDevice.SupportedFeatureLevel == DeviceFeatureLevel.SM5)))
{
_multiSampleEnable = true;
}
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
private void Dispose(bool disposing)
{
if (_disposed)
{
return;
}
if (disposing)
{
// Dump any pending rendering.
_cache.Reset();
if (_initialState != null)
{
_initialState.Restore(true);
_initialState = null;
}
TrackedObjects.ReleaseAll();
if (Effects != null)
{
Effects.FreeEffects();
Effects = null;
}
if (_currentTarget.SwapChain != null)
{
_currentTarget.SwapChain.AfterSwapChainResized -= target_Resized;
}
if (DefaultLayout != null)
{
DefaultLayout.Dispose();
}
if (VertexShader != null)
{
VertexShader.CleanUp();
}
if (PixelShader != null)
{
PixelShader.CleanUp();
}
VertexShader = null;
PixelShader = null;
DefaultVertexBufferBinding.VertexBuffer.Dispose();
if (DefaultIndexBuffer != null)
{
DefaultIndexBuffer.Dispose();
}
if ((_systemCreatedTarget) && (_defaultTarget.Target != null))
{
_defaultTarget.Target.Resource.Dispose();
_defaultTarget = default(Gorgon2DTarget);
}
Graphics.RemoveTrackedObject(this);
}
_disposed = true;
}