C# Class Axiom.RenderSystems.Xna.XnaHardwarePixelBuffer

Xna implementation of HardwarePixelBuffer

Inheritance: Axiom.Graphics.HardwarePixelBuffer

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Protected Properties

Property	Type	Description
HWMipmaps	bool
device	Microsoft.Xna.Framework.Graphics.GraphicsDevice
doMipmapGen	bool
fsaaSurface	Microsoft.Xna.Framework.Graphics.RenderTarget2D
mipLevel	ushort
mipTex	Microsoft.Xna.Framework.Graphics.Texture
sliceTRT	List
surface	Microsoft.Xna.Framework.Graphics.Texture2D
tempSurface	Microsoft.Xna.Framework.Graphics.Texture2D
tempVolume	Microsoft.Xna.Framework.Graphics.Texture3D
volume	Microsoft.Xna.Framework.Graphics.Texture3D

Public Methods

Method	Description
Bind ( Microsoft.Xna.Framework.Graphics device, Microsoft.Xna.Framework.Graphics surface, bool update ) : void
Bind ( Microsoft.Xna.Framework.Graphics device, Microsoft.Xna.Framework.Graphics surface, ushort miplevel, bool update ) : void	Call this to associate a Xna Texture2D with this pixel buffer
BlitFromMemory ( PixelBox src, BasicBox dstBox ) : void	Copies a region from normal memory to a region of this pixelbuffer. The source image can be in any pixel format supported by Axiom, and in any size. The source and destination regions dimensions don't have to match, in which case scaling is done. This scaling is generally done using a bilinear filter in hardware, but it is faster to pass the source image in the right dimensions. Only call this function when both buffers are unlocked.
BlitToMemory ( BasicBox srcBox, PixelBox dst ) : void	Copies a region of this pixelbuffer to normal memory. The source and destination regions don't have to match, in which case scaling is done. Only call this function when the buffer is unlocked.
GenMipmaps ( ) : void	Internal function to update mipmaps on update of level 0
GetRenderTarget ( int slice ) : RenderTexture
XnaHardwarePixelBuffer ( BufferUsage usage ) : System
XnaHardwarePixelBuffer ( int width, int height, int depth, PixelFormat format, BufferUsage usage, bool useSystemMemory, bool useShadowBuffer ) : System

Protected Methods

Method	Description
CreateRenderTextures ( bool update ) : void	Create (or update) render textures for slices
DestroyRenderTextures ( ) : void	Destroy render textures for slices
LockImpl ( BasicBox lockBox, BufferLocking options ) : PixelBox	Internal implementation of HardwareBuffer.Lock.
UnlockImpl ( ) : void	Internal implementation of HardwareBuffer.Unlock.

Private Methods

Method	Description
SetMipmapping ( bool doMipmapGen, bool MipmapsHardwareGenerated, Microsoft texture ) : void

Method Details

Bind() public method

public Bind ( Microsoft.Xna.Framework.Graphics device, Microsoft.Xna.Framework.Graphics surface, bool update ) : void
device	Microsoft.Xna.Framework.Graphics
surface	Microsoft.Xna.Framework.Graphics
update	bool
return	void

Bind() public method

Call this to associate a Xna Texture2D with this pixel buffer

public Bind ( Microsoft.Xna.Framework.Graphics device, Microsoft.Xna.Framework.Graphics surface, ushort miplevel, bool update ) : void
device	Microsoft.Xna.Framework.Graphics
surface	Microsoft.Xna.Framework.Graphics
miplevel	ushort
update	bool
return	void

BlitFromMemory() public method

Copies a region from normal memory to a region of this pixelbuffer. The source image can be in any pixel format supported by Axiom, and in any size.

The source and destination regions dimensions don't have to match, in which case scaling is done. This scaling is generally done using a bilinear filter in hardware, but it is faster to pass the source image in the right dimensions. Only call this function when both buffers are unlocked.

public BlitFromMemory ( PixelBox src, BasicBox dstBox ) : void
src	Axiom.Media.PixelBox	PixelBox containing the source pixels and format in memory
dstBox	Axiom.Media.BasicBox	Image.BasicBox describing the destination region in this buffer
return	void

BlitToMemory() public method

Copies a region of this pixelbuffer to normal memory.

The source and destination regions don't have to match, in which case scaling is done. Only call this function when the buffer is unlocked.

public BlitToMemory ( BasicBox srcBox, PixelBox dst ) : void
srcBox	Axiom.Media.BasicBox	BasicBox describing the source region of this buffer
dst	Axiom.Media.PixelBox	PixelBox describing the destination pixels and format in memory
return	void

CreateRenderTextures() protected method

Create (or update) render textures for slices

protected CreateRenderTextures ( bool update ) : void
update	bool	are we updating an existing texture
return	void

DestroyRenderTextures() protected method

Destroy render textures for slices

protected DestroyRenderTextures ( ) : void
return	void

GenMipmaps() public method

Internal function to update mipmaps on update of level 0

public GenMipmaps ( ) : void
return	void

GetRenderTarget() public method

public GetRenderTarget ( int slice ) : RenderTexture
slice	int
return	Axiom.Graphics.RenderTexture

LockImpl() protected method

Internal implementation of HardwareBuffer.Lock.

protected LockImpl ( BasicBox lockBox, BufferLocking options ) : PixelBox
lockBox	Axiom.Media.BasicBox
options	BufferLocking
return	Axiom.Media.PixelBox

UnlockImpl() protected method

Internal implementation of HardwareBuffer.Unlock.

protected UnlockImpl ( ) : void
return	void

XnaHardwarePixelBuffer() public method

public XnaHardwarePixelBuffer ( BufferUsage usage ) : System
usage	BufferUsage
return	System

XnaHardwarePixelBuffer() public method

public XnaHardwarePixelBuffer ( int width, int height, int depth, PixelFormat format, BufferUsage usage, bool useSystemMemory, bool useShadowBuffer ) : System
width	int
height	int
depth	int
format	PixelFormat
usage	BufferUsage
useSystemMemory	bool
useShadowBuffer	bool
return	System

Property Details

HWMipmaps protected_oe property

Hardware Mipmaps?

protected bool HWMipmaps
return	bool

device protected_oe property

Xna Device

protected GraphicsDevice,Microsoft.Xna.Framework.Graphics device
return	Microsoft.Xna.Framework.Graphics.GraphicsDevice

doMipmapGen protected_oe property

Doing Mipmapping?

protected bool doMipmapGen
return	bool

fsaaSurface protected_oe property

FSAA Surface abstracted by this buffer

protected RenderTarget2D,Microsoft.Xna.Framework.Graphics fsaaSurface
return	Microsoft.Xna.Framework.Graphics.RenderTarget2D

mipLevel protected_oe property

Surface abstracted by this buffer

protected ushort mipLevel
return	ushort

mipTex protected_oe property

The Mipmap texture?

protected Texture,Microsoft.Xna.Framework.Graphics mipTex
return	Microsoft.Xna.Framework.Graphics.Texture

sliceTRT protected_oe property

Render targets

protected List sliceTRT
return	List

surface protected_oe property

protected Texture2D,Microsoft.Xna.Framework.Graphics surface
return	Microsoft.Xna.Framework.Graphics.Texture2D

tempSurface protected_oe property

Temporary surface in main memory if direct locking of mSurface is not possible

protected Texture2D,Microsoft.Xna.Framework.Graphics tempSurface
return	Microsoft.Xna.Framework.Graphics.Texture2D

tempVolume protected_oe property

Temporary volume in main memory if direct locking of mVolume is not possible

protected Texture3D,Microsoft.Xna.Framework.Graphics tempVolume
return	Microsoft.Xna.Framework.Graphics.Texture3D

volume protected_oe property

Volume abstracted by this buffer

protected Texture3D,Microsoft.Xna.Framework.Graphics volume
return	Microsoft.Xna.Framework.Graphics.Texture3D