Class DX12GraphicsContext

Manages all graphical functionalities.

Inheritance
object
GraphicsContext
DX12GraphicsContext
Implements
Inherited Members
Namespace: Evergine.DirectX12
Assembly: Evergine.DirectX12.dll
Syntax
public class DX12GraphicsContext : GraphicsContext, IGetNativePointers

Constructors

DX12GraphicsContext()

Initializes a new instance of the DX12GraphicsContext class.

Declaration
public DX12GraphicsContext()

Fields

DXDevice

The DirectX device.

Declaration
public ID3D12Device2 DXDevice
Field Value
Type Description
ID3D12Device2

DXFactory

The DXGI factory instance.

Declaration
public IDXGIFactory4 DXFactory
Field Value
Type Description
IDXGIFactory4

DefaultShader4ComponentMapping

Native DX constant used to set 4 components.

Declaration
public static readonly uint DefaultShader4ComponentMapping
Field Value
Type Description
uint

GPU_RESOURCE_HEAP_CBV_COUNT

The default heap size for constant buffer views.

Declaration
public static readonly uint GPU_RESOURCE_HEAP_CBV_COUNT
Field Value
Type Description
uint

GPU_RESOURCE_HEAP_SRV_COUNT

The default heap size for shader resource views.

Declaration
public static readonly uint GPU_RESOURCE_HEAP_SRV_COUNT
Field Value
Type Description
uint

GPU_RESOURCE_HEAP_UAV_COUNT

The default heap size for unordered access views.

Declaration
public static readonly uint GPU_RESOURCE_HEAP_UAV_COUNT
Field Value
Type Description
uint

GPU_SAMPLER_HEAP_COUNT

The default heap size for samplers.

Declaration
public static readonly uint GPU_SAMPLER_HEAP_COUNT
Field Value
Type Description
uint

Properties

BackendType

Gets the backend type (DirectX, OpenGL, etc.)

Declaration
public override GraphicsBackend BackendType { get; }
Property Value
Type Description
GraphicsBackend
Overrides

Capabilities

Gets the capabilities of this graphics context.

Declaration
public override GraphicsContextCapabilities Capabilities { get; }
Property Value
Type Description
GraphicsContextCapabilities
Overrides

NativeDevicePointer

Gets the native device pointer.

Declaration
public override nint NativeDevicePointer { get; }
Property Value
Type Description
nint
Overrides

Methods

CreateDeviceInternal()

Initializes the graphics context to be used in a compute shader.

Declaration
public override void CreateDeviceInternal()
Overrides

CreateSwapChain(SwapChainDescription)

Initializes the swap chain.

Declaration
public override SwapChain CreateSwapChain(SwapChainDescription description)
Parameters
Type Name Description
SwapChainDescription description

The swap chain descriptor.
Returns
Type Description
SwapChain

Created Swap chain.
Overrides

Dispose(bool)

Releases unmanaged and optionally managed resources.

Declaration
protected override void Dispose(bool disposing)
Parameters
Type Name Description
bool disposing

true to release both managed and unmanaged resources; false to release only unmanaged resources.
Overrides

GenerateTextureMipmapping(Texture)

Generates mipmapping texture levels.

Declaration
public override bool GenerateTextureMipmapping(Texture texture)
Parameters
Type Name Description
Texture texture

The texture for which mipmapping is generated.
Returns
Type Description
bool

True if the mipmapping has been generated.
Overrides

InternalUpdateBufferData(Buffer, nint, uint, uint)

Fills the buffer from a pointer.

Declaration
protected override void InternalUpdateBufferData(Buffer buffer, nint source, uint sourceSizeInBytes, uint destinationOffsetInBytes = 0)
Parameters
Type Name Description
Buffer buffer

Buffer instance.
nint source

The data pointer.
uint sourceSizeInBytes

The size in bytes.
uint destinationOffsetInBytes

The offset in bytes.
Overrides

MapMemory(GraphicsResource, MapMode, uint)

Maps a Buffer or Texture to a CPU-accessible data region.

Declaration
public override MappedResource MapMemory(GraphicsResource resource, MapMode mode, uint subResource = 0)
Parameters
Type Name Description
GraphicsResource resource

The graphics resource to map.
MapMode mode

The MapMode used to map the resource.
uint subResource

The subresource to map. Subresources are indexed first by mip slice and then by array layer. Applies only to Textures.
Returns
Type Description
MappedResource

A MappedResource structure describing the mapped data region.
Overrides

ShaderCompile(string, string, ShaderStages, CompilerParameters)

Converts the shader source into bytecode.

Declaration
public override CompilationResult ShaderCompile(string shaderSource, string entryPoint, ShaderStages stage, CompilerParameters parameters)
Parameters
Type Name Description
string shaderSource

The shader source text.
string entryPoint

The entry point function name.
ShaderStages stage

The shader stage, ShaderStages.
CompilerParameters parameters

The compiler parameters.
Returns
Type Description
CompilationResult

The shader bytecode.
Overrides

SyncUpcopyQueue()

Syncs the current buffer data in the copyQueue. Internal function used in the UploadBuffer strategy.

Declaration
public override void SyncUpcopyQueue()
Overrides

UnmapMemory(GraphicsResource, uint)

Invalidates a previously-mapped data region for the given Buffer or Texture.

Declaration
public override void UnmapMemory(GraphicsResource resource, uint subResource = 0)
Parameters
Type Name Description
GraphicsResource resource

The graphics resource to unmap.
uint subResource

The subresource to unmap. Subresources are indexed first by mip slice and then by array layer. Only for Textures.
Overrides

UpdateTextureData(Texture, nint, uint, uint)

Fills the buffer from a pointer.

Declaration
public override void UpdateTextureData(Texture texture, nint source, uint sourceSizeInBytes, uint subResource = 0)
Parameters
Type Name Description
Texture texture

Texture instance.
nint source

The data pointer.
uint sourceSizeInBytes

The size in bytes.
uint subResource

The sub-resource index.
Overrides

Implements

Extension Methods