Class GorgonTexture1DView

A shader view for textures.

Inheritance
object
GorgonResourceView
GorgonShaderResourceView
GorgonTexture1DView
Implements
Inherited Members
Namespace: Gorgon.Graphics.Core
Assembly: Gorgon.Graphics.Core.dll
Syntax
public sealed class GorgonTexture1DView : GorgonShaderResourceView, IDisposable, IGorgonGraphicsObject, IEquatable<GorgonResourceView>, IEquatable<GorgonShaderResourceView>, IGorgonTexture1DInfo, IGorgonNamedObject, IGorgonImageInfo
Remarks

This is a texture shader view to allow a GorgonTexture1D to be bound to the GPU pipeline as a shader resource.

Use a resource view to allow a shader access to the contents of a resource (or sub resource). When the resource is created with a typeless format, this will allow the resource to be cast to any format within the same group.

Properties

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ArrayCount

Property to return the number of array indices to use in the view.

Declaration
public int ArrayCount { get; }
Property Value
Type Description
int
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ArrayIndex

Property to return the first array index to use in the view.

Declaration
public int ArrayIndex { get; }
Property Value
Type Description
int
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Binding

Property to return the flags to determine how the texture will be bound with the pipeline when rendering.

Declaration
public TextureBinding Binding { get; }
Property Value
Type Description
TextureBinding
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Bounds

Property to return the bounding range for the view.

Declaration
public GorgonRange Bounds { get; }
Property Value
Type Description
GorgonRange
Remarks

This value is the full bounding range of the first mip map level for the texture associated with the view.

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Format

Property to return the format for the view.

Declaration
public BufferFormat Format { get; }
Property Value
Type Description
BufferFormat
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FormatInformation

Property to return information about the Format used by this view.

Declaration
public GorgonFormatInfo FormatInformation { get; }
Property Value
Type Description
GorgonFormatInfo
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MipCount

Property to return the number of mip maps in the resource to view.

Declaration
public int MipCount { get; }
Property Value
Type Description
int
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MipSlice

Property to return the index of the first mip map in the resource to view.

Declaration
public int MipSlice { get; }
Property Value
Type Description
int
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Texture

Property to return the texture that is bound to this view.

Declaration
public GorgonTexture1D Texture { get; }
Property Value
Type Description
GorgonTexture1D
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Width

Property to return the width of the texture in pixels.

Declaration
public int Width { get; }
Property Value
Type Description
int
Remarks

This value is the full width of the first mip map level for the texture associated with the view.

Methods

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CreateTexture(GorgonGraphics, IGorgonTexture1DInfo, IGorgonImage)

Function to create a new texture that is bindable to the GPU.

Declaration
public static GorgonTexture1DView CreateTexture(GorgonGraphics graphics, IGorgonTexture1DInfo info, IGorgonImage initialData = null)
Parameters
Type Name Description
GorgonGraphics graphics

The graphics interface to use when creating the target.
IGorgonTexture1DInfo info

The information about the texture.
IGorgonImage initialData

[Optional] Initial data used to populate the texture.
Returns
Type Description
GorgonTexture1DView

A new GorgonTexture1DView.
Remarks

This is a convenience method that will create a GorgonTexture1D and a GorgonTexture1DView as a single object that users can use to apply a texture as a shader resource. This helps simplify creation of a texture by executing some prerequisite steps on behalf of the user.

Since the GorgonTexture1D created by this method is linked to the GorgonTexture1DView returned, disposal of either one will dispose of the other on your behalf. If the user created a GorgonTexture1DView from the GetShaderResourceView(BufferFormat, int, int, int, int) method on the GorgonTexture1D, then it's assumed the user knows what they are doing and will handle the disposal of the texture and view on their own.

If an initialData image is provided, and the width/height/depth is not the same as the values in the info parameter, then the image data will be cropped to match the values in the info parameter. Things like array count, and mip levels will still be taken from the initialData image parameter.

Exceptions
Type Condition
ArgumentNullException

Thrown when the graphics, or info parameter is null.
See Also
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Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public override void Dispose()
Overrides
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FromFile(GorgonGraphics, string, IGorgonImageCodec, GorgonTextureLoadOptions)

Function to load a texture from a file.

Declaration
public static GorgonTexture1DView FromFile(GorgonGraphics graphics, string filePath, IGorgonImageCodec codec, GorgonTextureLoadOptions options = null)
Parameters
Type Name Description
GorgonGraphics graphics

The graphics interface that will own the texture.
string filePath

The path to the file.
IGorgonImageCodec codec

The codec that is used to decode the the data in the stream.
GorgonTextureLoadOptions options

[Optional] Options used to further define the texture.
Returns
Type Description
GorgonTexture1DView

A new GorgonTexture1DView
Remarks

This will load an IGorgonImage from a file on disk and put it into a GorgonTexture1D object and return a GorgonTexture1DView.

If specified, the optionsparameter will define how Gorgon and shaders should handle the texture. The GorgonTextureLoadOptions type contains the following:

  • BindingWhen defined, will indicate the TextureBinding that defines how the texture will be bound to the graphics pipeline. If it is omitted, then the binding will be ShaderResource.
  • UsageWhen defined, will indicate the preferred usage for the texture. If it is omitted, then the usage will be set to Default.
  • Multisample infoWhen defined (i.e. not null), defines the multisampling to apply to the texture. If omitted, then the default is NoMultiSampling.
  • ConvertToPremultipliedAlphaConverts the image to premultiplied alpha before uploading the image data to the texture.

Since the GorgonTexture1D created by this method is linked to the GorgonTexture1DView returned, disposal of either one will dispose of the other on your behalf. If the user created a GorgonTexture1DView from the GetShaderResourceView(BufferFormat, int, int, int, int) method on the GorgonTexture1D, then it's assumed the user knows what they are doing and will handle the disposal of the texture and view on their own.

Exceptions
Type Condition
ArgumentNullException

Thrown when the graphics, filePath, or the codec parameter is null.
ArgumentEmptyException

Thrown when the filePath parameter is empty.
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FromStream(GorgonGraphics, Stream, IGorgonImageCodec, long?, GorgonTextureLoadOptions)

Function to load a texture from a Stream.

Declaration
public static GorgonTexture1DView FromStream(GorgonGraphics graphics, Stream stream, IGorgonImageCodec codec, long? size = null, GorgonTextureLoadOptions options = null)
Parameters
Type Name Description
GorgonGraphics graphics

The graphics interface that will own the texture.
Stream stream

The stream containing the texture image data.
IGorgonImageCodec codec

The codec that is used to decode the the data in the stream.
long? size

[Optional] The size of the image in the stream, in bytes.
GorgonTextureLoadOptions options

[Optional] Options used to further define the texture.
Returns
Type Description
GorgonTexture1DView

A new GorgonTexture1DView
Remarks

This will load an IGorgonImage from a stream and put it into a GorgonTexture1D object and return a GorgonTexture1DView.

If the size option is specified, then the method will read from the stream up to that number of bytes, so it is up to the user to provide an accurate size. If it is omitted then the stream length - stream position is used as the total size.

If specified, the optionsparameter will define how Gorgon and shaders should handle the texture. The GorgonTextureLoadOptions type contains the following:

  • BindingWhen defined, will indicate the TextureBinding that defines how the texture will be bound to the graphics pipeline. If it is omitted, then the binding will be ShaderResource.
  • UsageWhen defined, will indicate the preferred usage for the texture. If it is omitted, then the usage will be set to Default.
  • Multisample infoWhen defined (i.e. not null), defines the multisampling to apply to the texture. If omitted, then the default is NoMultiSampling.
  • ConvertToPremultipliedAlphaConverts the image to premultiplied alpha before uploading the image data to the texture.

Since the GorgonTexture1D created by this method is linked to the GorgonTexture1DView returned, disposal of either one will dispose of the other on your behalf. If the user created a GorgonTexture1DView from the GetShaderResourceView(BufferFormat, int, int, int, int) method on the GorgonTexture1D, then it's assumed the user knows what they are doing and will handle the disposal of the texture and view on their own.

Exceptions
Type Condition
ArgumentNullException

Thrown when the graphics, stream, or the codec parameter is null.
IOException

Thrown if the stream is write only.
EndOfStreamException

Thrown if reading the image would move beyond the end of the stream.
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GetMipWidth(int)

Function to return the width of the render target at the current MipSlice in pixels.

Declaration
public int GetMipWidth(int mipLevel)
Parameters
Type Name Description
int mipLevel

The mip level to evaluate.
Returns
Type Description
int

The width of the mip map level assigned to MipSlice for the texture associated with the render target.
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ToPixel(GorgonRangeF, int?)

Function to convert a GorgonRangeF of texel coordinates to pixel space.

Declaration
public GorgonRange ToPixel(GorgonRangeF texelCoordinates, int? mipLevel = null)
Parameters
Type Name Description
GorgonRangeF texelCoordinates

The texel coordinates to convert.
int? mipLevel

[Optional] The mip level to use.
Returns
Type Description
GorgonRange

A GorgonRange containing the pixel space coordinates.
Remarks

If specified, the mipLevel only applies to the MipSlice and MipCount for this view, it will be constrained if it falls outside of that range. Because of this, the coordinates returned may not be the exact size of the texture bound to the view at mip level 0. If the mipLevel is omitted, then the first mip level for the underlying Texture is used.

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ToPixel(float, int?)

Function to convert a floating point value from texel coordinates to pixel space.

Declaration
public int ToPixel(float texelOffset, int? mipLevel = null)
Parameters
Type Name Description
float texelOffset

The floating point texel to convert.
int? mipLevel

[Optional] The mip level to use.
Returns
Type Description
int

An integer value containing the pixel space coordinates.
Remarks

If specified, the mipLevel only applies to the MipSlice and MipCount for this view, it will be constrained if it falls outside of that range. Because of this, the coordinates returned may not be the exact size of the texture bound to the view at mip level 0. If the mipLevel is omitted, then the first mip level for the underlying Texture is used.

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ToTexel(GorgonRange, int?)

Function to convert a GorgonRange of pixel coordinates to texel space.

Declaration
public GorgonRangeF ToTexel(GorgonRange pixelCoordinates, int? mipLevel = null)
Parameters
Type Name Description
GorgonRange pixelCoordinates

The pixel coordinates to convert.
int? mipLevel

[Optional] The mip level to use.
Returns
Type Description
GorgonRangeF

A GorgonRangeF containing the texel space coordinates.
Remarks

If specified, the mipLevel only applies to the MipSlice and MipCount for this view, it will be constrained if it falls outside of that range. Because of this, the coordinates returned may not be the exact size of the texture bound to the view at mip level 0. If the mipLevel is omitted, then the first mip level for the underlying Texture is used.

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ToTexel(int, int?)

Function to convert an integer value from pixel coordinates to texel space.

Declaration
public float ToTexel(int pixelOffset, int? mipLevel = null)
Parameters
Type Name Description
int pixelOffset

The pixel offset to convert.
int? mipLevel

[Optional] The mip level to use.
Returns
Type Description
float

A floating point value containing the texel space coordinates.
Remarks

If specified, the mipLevel only applies to the MipSlice and MipCount for this view, it will be constrained if it falls outside of that range. Because of this, the coordinates returned may not be the exact size of the texture bound to the view at mip level 0. If the mipLevel is omitted, then the first mip level for the underlying Texture is used.

Implements

Extension Methods