/// <summary>
/// Function to initialize the 2D renderer.
/// </summary>
private void Initialize()
{
// Add shader includes.
if (!Graphics.Shaders.IncludeFiles.Contains("Gorgon2DShaders"))
{
Graphics.ImmediateContext.Shaders.IncludeFiles.Add("Gorgon2DShaders", Encoding.UTF8.GetString(Resources.BasicSprite));
}
// Create shader states.
PixelShader = new Gorgon2DPixelShaderState(this);
VertexShader = new Gorgon2DVertexShaderState(this);
// Create layout information so we can bind our vertices to the shader.
DefaultLayout = Graphics.ImmediateContext.Input.CreateInputLayout("Gorgon2D Input Layout", typeof(Gorgon2DVertex), VertexShader.DefaultVertexShader);
// Create pre-defined effects objects.
Effects = new Gorgon2DEffects(this);
int spriteVertexBufferSize = Gorgon2DVertex.SizeInBytes * _cache.CacheSize;
int spriteIndexBufferSize = sizeof(int) * _cache.CacheSize * 6;
// Set up our index buffer.
using (var ibData = new GorgonDataStream(spriteIndexBufferSize))
{
unsafe
{
ushort index = 0;
var buffer = (int *)ibData.UnsafePointer;
for (int i = 0; i < _cache.CacheSize; i++)
{
*(buffer++) = index;
*(buffer++) = (index + 1);
*(buffer++) = (index + 2);
*(buffer++) = (index + 1);
*(buffer++) = (index + 3);
*(buffer++) = (index + 2);
index += 4;
}
}
DefaultIndexBuffer = Graphics.ImmediateContext.Buffers.CreateIndexBuffer("Gorgon2D Default Index Buffer", new GorgonIndexBufferSettings
{
IsOutput = false,
SizeInBytes = (int)ibData.Length,
Usage = BufferUsage.Immutable,
Use32BitIndices = true
}, ibData);
}
// Create our empty vertex buffer.
_defaultVertexBuffer =
new GorgonVertexBufferBinding(
Graphics.ImmediateContext.Buffers.CreateVertexBuffer("Gorgon 2D Default Vertex Buffer", new GorgonBufferSettings
{
SizeInBytes = spriteVertexBufferSize,
Usage = BufferUsage.Dynamic
}), Gorgon2DVertex.SizeInBytes);
// Set up the default render states.
SetDefaultStates();
}
/// <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;
}
