public DeviceResourceContext(GraphicsDevice device, Effect effect, VertexDeclaration declaration, ResourceBufferInfo resourceBufferInfo, int indexStructSize)
{
var vertexSize = declaration.CalculateSize();
VertexCount = resourceBufferInfo.VertexCount;
IndexCount = resourceBufferInfo.IndexCount;
IsIndexBufferDynamic = resourceBufferInfo.IsIndexBufferDynamic;
VertexBuffer = Buffer.Vertex.New(device, VertexCount * vertexSize, GraphicsResourceUsage.Dynamic).DisposeBy(this);
if (IsIndexBufferDynamic)
{
IndexBuffer = Buffer.Index.New(device, IndexCount * indexStructSize, GraphicsResourceUsage.Dynamic).DisposeBy(this);
}
else
{
IndexBuffer = Buffer.Index.New(device, resourceBufferInfo.StaticIndices).DisposeBy(this);
IndexBuffer.Reload = graphicsResource => ((Buffer)graphicsResource).Recreate(resourceBufferInfo.StaticIndices);
}
var indexBufferBinding = new IndexBufferBinding(IndexBuffer, indexStructSize == sizeof(int), IndexBuffer.Description.SizeInBytes / indexStructSize);
var vertexBufferBinding = new VertexBufferBinding(VertexBuffer, declaration, VertexCount, vertexSize);
// Creates a VAO
VertexArrayObject = VertexArrayObject.New(device, effect.InputSignature, indexBufferBinding, vertexBufferBinding).DisposeBy(this);
}
public Description(EffectInputSignature shaderSignature, VertexBufferBinding[] vertexBuffers, IndexBufferBinding indexBuffer)
{
ShaderSignature = shaderSignature;
VertexBuffers = vertexBuffers ?? emptyVertexBufferBindings;
IndexBuffer = indexBuffer;
// Precompute hash code
hashCode = 0;
hashCode = ComputeHashCode();
}
private VertexArrayObject(GraphicsDevice graphicsDevice, EffectInputSignature shaderSignature, IndexBufferBinding indexBufferBinding, VertexBufferBinding[] vertexBufferBindings)
: base(graphicsDevice)
{
this.vertexBufferBindings = vertexBufferBindings;
this.indexBufferBinding = indexBufferBinding;
this.preferredInputSignature = shaderSignature;
CreateAttributes();
}
public static VertexArrayObject New(GraphicsDevice graphicsDevice, EffectInputSignature shaderSignature, IndexBufferBinding indexBufferBinding, params VertexBufferBinding[] vertexBufferBindings)
{
// Store SamplerState in a cache (D3D seems to have quite bad concurrency when using CreateSampler while rendering)
VertexArrayObject vertexArrayObject;
var description = new Description(shaderSignature, vertexBufferBindings, indexBufferBinding);
lock (graphicsDevice.CachedVertexArrayObjects)
{
if (graphicsDevice.CachedVertexArrayObjects.TryGetValue(description, out vertexArrayObject))
{
// TODO: Appropriate destroy
vertexArrayObject.AddReferenceInternal();
}
else
{
vertexArrayObject = new VertexArrayObject(graphicsDevice, shaderSignature, indexBufferBinding, vertexBufferBindings);
// For now store description as is to avoid having to recreate it on Destroy.
// It would probably save little bit of memory space to try to reuse existing fields and add only what's missing.
vertexArrayObject.description = description;
graphicsDevice.CachedVertexArrayObjects.Add(description, vertexArrayObject);
}
}
return(vertexArrayObject);
}
public static VertexArrayObject New(GraphicsDevice graphicsDevice, IndexBufferBinding indexBufferBinding, params VertexBufferBinding[] vertexBufferBindings)
{
return(New(graphicsDevice, null, indexBufferBinding, vertexBufferBindings));
}
private VertexArrayObject(GraphicsDevice graphicsDevice, EffectInputSignature shaderSignature, IndexBufferBinding indexBufferBinding, VertexBufferBinding[] vertexBufferBindings)
: base(graphicsDevice)
{
this.vertexBufferBindings = vertexBufferBindings;
this.indexBufferBinding = indexBufferBinding;
this.EffectInputSignature = shaderSignature;
// Calculate Direct3D11 InputElement
int inputElementCount = vertexBufferBindings.Sum(t => t.Declaration.VertexElements.Length);
var inputElements = new InputElement[inputElementCount];
int j = 0;
for (int i = 0; i < vertexBufferBindings.Length; i++)
{
var declaration = vertexBufferBindings[i].Declaration;
vertexBufferBindings[i].Buffer.AddReferenceInternal();
foreach (var vertexElementWithOffset in declaration.EnumerateWithOffsets())
{
var vertexElement = vertexElementWithOffset.VertexElement;
inputElements[j++] = new InputElement
{
Slot = i,
SemanticName = vertexElement.SemanticName,
SemanticIndex = vertexElement.SemanticIndex,
AlignedByteOffset = vertexElementWithOffset.Offset,
Format = (SharpDX.DXGI.Format)vertexElement.Format,
};
}
}
Layout = VertexArrayLayout.GetOrCreateLayout(new VertexArrayLayout(inputElements));
if (indexBufferBinding != null)
{
indexBufferBinding.Buffer.AddReferenceInternal();
indexBufferOffset = indexBufferBinding.Offset;
indexFormat = (indexBufferBinding.Is32Bit ? SharpDX.DXGI.Format.R32_UInt : SharpDX.DXGI.Format.R16_UInt);
}
CreateResources();
}
private VertexArrayObject(GraphicsDevice graphicsDevice, EffectInputSignature shaderSignature, IndexBufferBinding indexBufferBinding, VertexBufferBinding[] vertexBufferBindings)
: base(graphicsDevice)
{
this.vertexBufferBindings = vertexBufferBindings;
this.indexBufferBinding = indexBufferBinding;
this.preferredInputSignature = shaderSignature;
// Increase the reference count on the provided buffers -> we do not want to take the ownership
foreach (VertexBufferBinding vertexBufferBinding in vertexBufferBindings)
{
vertexBufferBinding.Buffer.AddReferenceInternal();
}
if (indexBufferBinding != null)
{
indexBufferBinding.Buffer.AddReferenceInternal();
}
CreateAttributes();
}
private VertexArrayObject(GraphicsDevice graphicsDevice, object shaderSignature, IndexBufferBinding indexBufferBinding, VertexBufferBinding[] vertexBuffers)
{
throw new NotImplementedException();
}
