/// <summary>
/// Initializes a new instance of the <see cref="GorgonRenderTargetTextureView"/> class.
/// </summary>
/// <param name="target">The render target to bind.</param>
/// <param name="format">The format of the render target view.</param>
/// <param name="mipSlice">The mip slice to use in the view.</param>
/// <param name="arrayIndex">The first array index to use in the view.</param>
/// <param name="arrayCount">The number of array indices to use in the view.</param>
internal GorgonRenderTargetTextureView(GorgonResource target, BufferFormat format, int mipSlice, int arrayIndex, int arrayCount)
: base(target, format)
{
MipSlice = mipSlice;
FirstArrayOrDepthIndex = arrayIndex;
ArrayOrDepthCount = arrayCount;
}
/// <summary>
/// Function to unbind a shader resource from all shaders.
/// </summary>
/// <param name="resource">Shader resource to unbind.</param>
internal void UnbindResource(GorgonResource resource)
{
PixelShader.Resources.UnbindResource(resource);
VertexShader.Resources.UnbindResource(resource);
if (GeometryShader != null)
{
GeometryShader.Resources.UnbindResource(resource);
}
if (ComputeShader != null)
{
ComputeShader.Resources.UnbindResource(resource);
ComputeShader.UnorderedAccessViews.UnbindResource(resource);
}
if (HullShader != null)
{
HullShader.Resources.UnbindResource(resource);
}
if (DomainShader != null)
{
DomainShader.Resources.UnbindResource(resource);
}
// If we have multiple contexts, then we need to unbind from those as well.
if ((_graphics.IsDeferred) || (_graphics.VideoDevice.SupportedFeatureLevel < DeviceFeatureLevel.SM5))
{
return;
}
foreach (var context in _graphics.GetTrackedObjectsOfType <GorgonGraphics>())
{
context.Shaders.UnbindResource(resource);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonRenderTargetView"/> class.
/// </summary>
/// <param name="resource">The resource to bind to the view.</param>
/// <param name="format">The format of the view.</param>
protected GorgonRenderTargetView(GorgonResource resource, BufferFormat format)
: base(resource, format)
{
switch (resource.ResourceType)
{
case ResourceType.Buffer:
_bufferTarget = (GorgonRenderTargetBuffer)resource;
break;
case ResourceType.Texture1D:
_1DTarget = (GorgonRenderTarget1D)resource;
break;
case ResourceType.Texture2D:
_2DTarget = (GorgonRenderTarget2D)resource;
if (_2DTarget.IsSwapChain)
{
_swapChain = (GorgonSwapChain)_2DTarget;
}
break;
case ResourceType.Texture3D:
_3DTarget = (GorgonRenderTarget3D)resource;
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonStructuredBufferUnorderedAccessView"/> class.
/// </summary>
/// <param name="resource">The buffer to bind to the view.</param>
/// <param name="firstElement">The first element in the buffer.</param>
/// <param name="elementCount">The number of elements to view.</param>
/// <param name="viewType">The type of unordered access view.</param>
internal GorgonStructuredBufferUnorderedAccessView(GorgonResource resource, int firstElement, int elementCount, UnorderedAccessViewType viewType)
: base(resource, BufferFormat.Unknown, firstElement, elementCount, false)
{
ViewType = viewType;
InitialCount = -1;
_structuredBuffer = (GorgonStructuredBuffer)resource;
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonViewCache"/> class.
/// </summary>
/// <param name="resource">The resource.</param>
public GorgonViewCache(GorgonResource resource)
{
_bufferViews = new Dictionary <ViewKey, GorgonBufferShaderView>();
_textureViews = new Dictionary <ViewKey, GorgonTextureShaderView>();
_targetViews = new Dictionary <ViewKey, GorgonRenderTargetView>();
_unorderedViews = new Dictionary <ViewKey, GorgonUnorderedAccessView>();
_depthViews = new Dictionary <ViewKey, GorgonDepthStencilView>();
_resource = resource;
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonBufferUnorderedAccessView"/> class.
/// </summary>
/// <param name="resource">The buffer to bind to the view.</param>
/// <param name="format">The format of the view.</param>
/// <param name="firstElement">The first element in the buffer.</param>
/// <param name="elementCount">The number of elements to view.</param>
/// <param name="isRaw">TRUE if the view should be a raw view, FALSE if not.</param>
internal GorgonBufferUnorderedAccessView(GorgonResource resource, BufferFormat format, int firstElement, int elementCount, bool isRaw)
: base(resource, format)
{
IsRaw = isRaw;
ElementStart = firstElement;
ElementCount = elementCount;
_buffer = resource as GorgonBuffer;
_indexBuffer = resource as GorgonIndexBuffer;
_vertexBuffer = resource as GorgonVertexBuffer;
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonBufferShaderView"/> class.
/// </summary>
/// <param name="buffer">The buffer to bind to the view.</param>
/// <param name="format">Format of the view.</param>
/// <param name="elementStart">The starting element for the view.</param>
/// <param name="elementCount">The number of elements in the view.</param>
/// <param name="isRaw">TRUE to use a raw view, FALSE to use a normal view.</param>
internal GorgonBufferShaderView(GorgonResource buffer, BufferFormat format, int elementStart, int elementCount, bool isRaw)
: base(buffer, format)
{
IsRaw = isRaw;
ElementStart = elementStart;
ElementCount = elementCount;
_buffer = buffer as GorgonBuffer;
_structuredBuffer = buffer as GorgonStructuredBuffer;
_indexBuffer = buffer as GorgonIndexBuffer;
_vertexBuffer = buffer as GorgonVertexBuffer;
}
/// <summary>
/// Function unbind all views with the specified resource.
/// </summary>
/// <param name="resource">Resource to unbind.</param>
internal void UnbindResource(GorgonResource resource)
{
if (resource == null)
{
return;
}
var indices =
_unorderedViews.Where(item => item != null && item.Resource == resource)
.Select(IndexOf)
.Where(index => index != -1);
foreach (var index in indices)
{
this[index] = null;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonDepthStencilView"/> class.
/// </summary>
/// <param name="resource">The resource to bind to the view.</param>
/// <param name="format">The format of the view.</param>
/// <param name="mipSlice">The mip level to use for the view.</param>
/// <param name="firstArrayIndex">The first array index to use for the view.</param>
/// <param name="arrayCount">The number of array indices to use for the view.</param>
/// <param name="flags">Depth/stencil view flags.</param>
internal GorgonDepthStencilView(GorgonResource resource, BufferFormat format, int mipSlice, int firstArrayIndex, int arrayCount, DepthStencilViewFlags flags)
: base(resource, format)
{
MipSlice = mipSlice;
FirstArrayIndex = firstArrayIndex;
ArrayCount = arrayCount;
Flags = flags;
switch (resource.ResourceType)
{
case ResourceType.Texture1D:
_depth1D = (GorgonDepthStencil1D)resource;
break;
case ResourceType.Texture2D:
_depth2D = (GorgonDepthStencil2D)resource;
break;
}
}
/// <summary>
/// Function to return the index of an unordered access view bound to a particular resource.
/// </summary>
/// <param name="resource">Resource to look up.</param>
/// <returns>The index of the resource if found, -1 if not.</returns>
/// <exception cref="System.ArgumentNullException">Thrown when the <paramref name="resource"/> parameter is NULL (Nothing in VB.Net).</exception>
public int IndexOf(GorgonResource resource)
{
if (resource == null)
{
throw new ArgumentNullException("resource");
}
for (int i = 0; i < _unorderedViews.Length; i++)
{
var view = _unorderedViews[i];
if ((view != null) &&
(view.Resource == resource))
{
return(i);
}
}
return(-1);
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonTextureUnorderedAccessView"/> class.
/// </summary>
/// <param name="resource">The resource.</param>
/// <param name="format">The format.</param>
/// <param name="mipIndex">The first mip level.</param>
/// <param name="arrayIndex">Index of the array.</param>
/// <param name="arrayCount">The array count.</param>
internal GorgonTextureUnorderedAccessView(GorgonResource resource, BufferFormat format, int mipIndex,
int arrayIndex, int arrayCount)
: base(resource, format)
{
MipIndex = mipIndex;
ArrayOrDepthStart = arrayIndex;
ArrayOrDepthCount = arrayCount;
switch (resource.ResourceType)
{
case ResourceType.Texture1D:
_texture1D = (GorgonTexture1D)resource;
break;
case ResourceType.Texture2D:
_texture2D = (GorgonTexture2D)resource;
break;
case ResourceType.Texture3D:
_texture3D = (GorgonTexture3D)resource;
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonShaderView"/> class.
/// </summary>
/// <param name="resource">The buffer to bind to the view.</param>
/// <param name="format">The format of the view.</param>
protected GorgonShaderView(GorgonResource resource, BufferFormat format)
: base(resource, format)
{
}
/// <summary>
/// Function to determine if a view is bound and is also bound to the specified resource.
/// </summary>
/// <param name="resource">Resource to look up.</param>
/// <returns>TRUE if found, FALSE if not.</returns>
/// <exception cref="System.ArgumentNullException">Thrown when the <paramref name="resource"/> parameter is NULL (Nothing in VB.Net).</exception>
public bool Contains(GorgonResource resource)
{
return(IndexOf(resource) > -1);
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonUnorderedAccessView"/> class.
/// </summary>
/// <param name="resource">The buffer to bind to the view.</param>
/// <param name="format">The format of the view.</param>
protected GorgonUnorderedAccessView(GorgonResource resource, BufferFormat format)
: base(resource, format)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="GorgonRenderTargetBufferView"/> class.
/// </summary>
/// <param name="target">The render target to bind.</param>
/// <param name="format">The format of the render target view.</param>
/// <param name="firstElement">The first element in the buffer to map to the view.</param>
/// <param name="elementCount">The number of elements in the buffer to map to the view.</param>
internal GorgonRenderTargetBufferView(GorgonResource target, BufferFormat format, int firstElement, int elementCount)
: base(target, format)
{
FirstElement = firstElement;
ElementCount = elementCount;
}
