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OpenSceneGraph/doc/doc++/osg/Image.html
Robert Osfield a0cb66ed78 A second try at commit these updates to docs.
2002-04-21 21:53:03 +00:00

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>class SG_EXPORT osg::Image</TITLE>
<META NAME="GENERATOR" CONTENT="DOC++ 3.4.8">
</HEAD>
<BODY BGCOLOR="#ffffff">
<H2>class SG_EXPORT <A HREF="#DOC.DOCU">osg::Image</A></H2></H2><BLOCKQUOTE>Image class for encapsulating the storage texture image data</BLOCKQUOTE>
<HR>
<H2>Inheritance:</H2>
<APPLET CODE="ClassGraph.class" WIDTH=600 HEIGHT=95>
<param name=classes value="CReferenced,MReferenced.html,CObject,MObject.html,CImage,MImage.html">
<param name=before value="M,M,M">
<param name=after value="Md_SP,Md_,M">
<param name=indent value="0,1,2">
<param name=arrowdir value="down">
</APPLET>
<HR>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.43.1">Image</A></B>()
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif> <B><A HREF="#DOC.2.43.2">Image</A></B>(const <!1><A HREF="Image.html#DOC.2.43.2">Image</A>&amp; image, const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop=CopyOp::SHALLOW_COPY)
<DD><I>Copy constructor using CopyOp to manage deep vs shallow copy</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <!1><A HREF="Object.html">Object</A>* <B><A HREF="#DOC.2.43.3">cloneType</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <!1><A HREF="Object.html">Object</A>* <B><A HREF="#DOC.2.43.4">clone</A></B>(const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop) const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual bool <B><A HREF="#DOC.2.43.5">isSameKindAs</A></B>(const <!1><A HREF="Object.html">Object</A>* obj) const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual const char* <B><A HREF="#DOC.2.43.6">className</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.7">setFileName</A></B>(const std::string&amp; fileName)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const std::string&amp; <B><A HREF="#DOC.2.43.8">getFileName</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.9">createImage</A></B>(int <!1><A HREF="Image.html#DOC.2.43.13">s</A>, int <!1><A HREF="Image.html#DOC.2.43.14">t</A>, int <!1><A HREF="Image.html#DOC.2.43.15">r</A>, GLenum format, GLenum type, int packing=1)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.10">setImage</A></B>(int <!1><A HREF="Image.html#DOC.2.43.13">s</A>, int <!1><A HREF="Image.html#DOC.2.43.14">t</A>, int <!1><A HREF="Image.html#DOC.2.43.15">r</A>, GLint internalTextureformat, GLenum format, GLenum type, unsigned char* <!1><A HREF="Image.html#DOC.2.43.26">data</A>, int packing=1)
<DD><I>set the image data and format.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.11">readPixels</A></B>(int <!1><A HREF="Viewport.html#DOC.2.112.7">x</A>, int <!1><A HREF="Viewport.html#DOC.2.112.8">y</A>, int <!1><A HREF="Viewport.html#DOC.2.112.9">width</A>, int <!1><A HREF="Viewport.html#DOC.2.112.10">height</A>, GLenum format, GLenum type)
<DD><I>readPixels from screen at specified position and size, using glReadPixels.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.12">scaleImage</A></B>(const int <!1><A HREF="Image.html#DOC.2.43.13">s</A>, const int <!1><A HREF="Image.html#DOC.2.43.14">t</A>, const int <!1><A HREF="Image.html#DOC.2.43.15">r</A>)
<DD><I>Scale image to specified size.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const int <B><A HREF="#DOC.2.43.13">s</A></B>() const
<DD><I>Width of image</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const int <B><A HREF="#DOC.2.43.14">t</A></B>() const
<DD><I>Height of image</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const int <B><A HREF="#DOC.2.43.15">r</A></B>() const
<DD><I>Depth of image</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.16">setInternalTextureFormat</A></B>(GLint internalFormat)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const GLint <B><A HREF="#DOC.2.43.17">getInternalTextureFormat</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.18">setPixelFormat</A></B>(const GLenum format)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const GLenum <B><A HREF="#DOC.2.43.19">getPixelFormat</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const GLenum <B><A HREF="#DOC.2.43.20">getDataType</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned int <B><A HREF="#DOC.2.43.21">getPacking</A></B>() const
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned int <B><A HREF="#DOC.2.43.22">getPixelSizeInBits</A></B>() const
<DD><I>return the numbers of bits required for each pixel</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned int <B><A HREF="#DOC.2.43.23">getRowSizeInBytes</A></B>() const
<DD><I>return the numbers of bytes each row of pixels occupies once it has been packed</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned int <B><A HREF="#DOC.2.43.24">getImageSizeInBytes</A></B>() const
<DD><I>return the numbers of bytes each image (_s*_t) of pixels occupies</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned int <B><A HREF="#DOC.2.43.25">getTotalSizeInBytes</A></B>() const
<DD><I>return the numbers of bytes the whole row/image/volume of pixels occupies</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline unsigned char* <B><A HREF="#DOC.2.43.26">data</A></B>()
<DD><I>raw image data</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned char* <B><A HREF="#DOC.2.43.27">data</A></B>() const
<DD><I>raw const image data</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>unsigned char* <B><A HREF="#DOC.2.43.28">data</A></B>(int column, int row=0, int image=0)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>void <B><A HREF="#DOC.2.43.29">ensureValidSizeForTexturing</A></B>()
<DD><I>Ensure image dimensions are a power of two.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.43.30">dirty</A></B>()
<DD><I>Dirty the image, which increments the modified flag, to force osg::Texture to reload the image</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline void <B><A HREF="#DOC.2.43.31">setModifiedTag</A></B>(const unsigned int value)
<DD><I>Set the modified tag value, only used by osg::Texture when using texture subloading.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>inline const unsigned int <B><A HREF="#DOC.2.43.32">getModifiedTag</A></B>() const
<DD><I>Get modified tag value, only used by osg::Texture when using texture subloading.</I>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>static const bool <B><A HREF="#DOC.2.43.33">isPackedType</A></B>(GLenum type)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>static const unsigned int <B><A HREF="#DOC.2.43.34">computeNumComponents</A></B>(GLenum format)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>static const unsigned int <B><A HREF="#DOC.2.43.35">computePixelSizeInBits</A></B>(GLenum format, GLenum type)
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>static const unsigned int <B><A HREF="#DOC.2.43.36">computeRowWidthInBytes</A></B>(int <!1><A HREF="Viewport.html#DOC.2.112.9">width</A>, GLenum format, GLenum type, int packing)
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>std::string <B><A HREF="#DOC.2.43.39">_fileName</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.2.43.40">_s</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.2.43.41">_t</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>int <B><A HREF="#DOC.2.43.42">_r</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>GLint <B><A HREF="#DOC.2.43.43">_internalTextureFormat</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>GLenum <B><A HREF="#DOC.2.43.44">_pixelFormat</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>GLenum <B><A HREF="#DOC.2.43.45">_dataType</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>unsigned int <B><A HREF="#DOC.2.43.46">_packing</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>unsigned char* <B><A HREF="#DOC.2.43.47">_data</A></B>
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>unsigned int <B><A HREF="#DOC.2.43.48">_modifiedTag</A></B>
</DL></P>
<P><DL>
<DT><H3>Protected Methods</H3><DD><DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif>virtual <B><A HREF="#DOC.2.43.37">~Image</A></B>()
<DT>
<IMG ALT="[more]" BORDER=0 SRC=icon1.gif><!1><A HREF="Image.html">Image</A>&amp; <B><A HREF="#DOC.2.43.38">operator = </A></B>(const <!1><A HREF="Image.html">Image</A>&amp;)
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Object.html">Object</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>setDataVariance</B>(const <!1><A HREF="Object.html#DOC.2.75.7">DataVariance</A> dv)
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const <!1><A HREF="Object.html#DOC.2.75.7">DataVariance</A> <B>getDataVariance</B>() const
</DL></P>
<P><DL>
<DT><H3>Public Members</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>enum <B>DataVariance</B>
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif><!1><A HREF="Object.html#DOC.2.75.7">DataVariance</A> <B>_dataVariance</B>
</DL></P>
</DL>
<HR><H3>Inherited from <A HREF="Referenced.html">Referenced</A>:</H3>
<DL>
<P><DL>
<DT><H3>Public Methods</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>ref</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>unref</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline void <B>unref_nodelete</B>() const
<DT>
<IMG ALT="o" SRC=icon2.gif>inline const int <B>referenceCount</B>() const
</DL></P>
<P><DL>
<DT><H3>Protected Fields</H3><DD><DT>
<IMG ALT="o" SRC=icon2.gif>mutable int <B>_refCount</B>
</DL></P>
</DL>
<A NAME="DOC.DOCU"></A>
<HR>
<H2>Documentation</H2>
<BLOCKQUOTE>Image class for encapsulating the storage texture image data</BLOCKQUOTE>
<DL>
<A NAME="Image"></A>
<A NAME="DOC.2.43.1"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> Image()</B></TT>
<DL><DT><DD></DL><P>
<A NAME="Image"></A>
<A NAME="DOC.2.43.2"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> Image(const <!1><A HREF="Image.html#DOC.2.43.2">Image</A>&amp; image, const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop=CopyOp::SHALLOW_COPY)</B></TT>
<DD>Copy constructor using CopyOp to manage deep vs shallow copy
<DL><DT><DD></DL><P>
<A NAME="cloneType"></A>
<A NAME="DOC.2.43.3"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual <!1><A HREF="Object.html">Object</A>* cloneType() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="clone"></A>
<A NAME="DOC.2.43.4"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual <!1><A HREF="Object.html">Object</A>* clone(const <!1><A HREF="CopyOp.html">CopyOp</A>&amp; copyop) const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="isSameKindAs"></A>
<A NAME="DOC.2.43.5"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual bool isSameKindAs(const <!1><A HREF="Object.html">Object</A>* obj) const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="className"></A>
<A NAME="DOC.2.43.6"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual const char* className() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="setFileName"></A>
<A NAME="DOC.2.43.7"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setFileName(const std::string&amp; fileName)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="getFileName"></A>
<A NAME="DOC.2.43.8"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const std::string&amp; getFileName() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="createImage"></A>
<A NAME="DOC.2.43.9"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void createImage(int <!1><A HREF="Image.html#DOC.2.43.13">s</A>, int <!1><A HREF="Image.html#DOC.2.43.14">t</A>, int <!1><A HREF="Image.html#DOC.2.43.15">r</A>, GLenum format, GLenum type, int packing=1)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="setImage"></A>
<A NAME="DOC.2.43.10"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setImage(int <!1><A HREF="Image.html#DOC.2.43.13">s</A>, int <!1><A HREF="Image.html#DOC.2.43.14">t</A>, int <!1><A HREF="Image.html#DOC.2.43.15">r</A>, GLint internalTextureformat, GLenum format, GLenum type, unsigned char* <!1><A HREF="Image.html#DOC.2.43.26">data</A>, int packing=1)</B></TT>
<DD>set the image data and format.
note, when the packing value is negative (the default is -1) this method assumes
a _packing width of 1 if the width is not a multiple of 4,
otherwise automatically sets to _packing to 4. If a positive
value of packing is supplied than _packing is simply set to that value.
<DL><DT><DD></DL><P>
<A NAME="readPixels"></A>
<A NAME="DOC.2.43.11"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void readPixels(int <!1><A HREF="Viewport.html#DOC.2.112.7">x</A>, int <!1><A HREF="Viewport.html#DOC.2.112.8">y</A>, int <!1><A HREF="Viewport.html#DOC.2.112.9">width</A>, int <!1><A HREF="Viewport.html#DOC.2.112.10">height</A>, GLenum format, GLenum type)</B></TT>
<DD>readPixels from screen at specified position and size, using glReadPixels.
Create memory for storage if required, reuse existing pixel coords if possible.
if pixelFormat or dataType
<DL><DT><DD></DL><P>
<A NAME="scaleImage"></A>
<A NAME="DOC.2.43.12"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void scaleImage(const int <!1><A HREF="Image.html#DOC.2.43.13">s</A>, const int <!1><A HREF="Image.html#DOC.2.43.14">t</A>, const int <!1><A HREF="Image.html#DOC.2.43.15">r</A>)</B></TT>
<DD>Scale image to specified size.
<DL><DT><DD></DL><P>
<A NAME="s"></A>
<A NAME="DOC.2.43.13"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const int s() const </B></TT>
<DD>Width of image
<DL><DT><DD></DL><P>
<A NAME="t"></A>
<A NAME="DOC.2.43.14"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const int t() const </B></TT>
<DD>Height of image
<DL><DT><DD></DL><P>
<A NAME="r"></A>
<A NAME="DOC.2.43.15"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const int r() const </B></TT>
<DD>Depth of image
<DL><DT><DD></DL><P>
<A NAME="setInternalTextureFormat"></A>
<A NAME="DOC.2.43.16"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setInternalTextureFormat(GLint internalFormat)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="getInternalTextureFormat"></A>
<A NAME="DOC.2.43.17"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const GLint getInternalTextureFormat() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="setPixelFormat"></A>
<A NAME="DOC.2.43.18"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void setPixelFormat(const GLenum format)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="getPixelFormat"></A>
<A NAME="DOC.2.43.19"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const GLenum getPixelFormat() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="getDataType"></A>
<A NAME="DOC.2.43.20"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const GLenum getDataType() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="getPacking"></A>
<A NAME="DOC.2.43.21"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned int getPacking() const </B></TT>
<DL><DT><DD></DL><P>
<A NAME="getPixelSizeInBits"></A>
<A NAME="DOC.2.43.22"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned int getPixelSizeInBits() const </B></TT>
<DD>return the numbers of bits required for each pixel
<DL><DT><DD></DL><P>
<A NAME="getRowSizeInBytes"></A>
<A NAME="DOC.2.43.23"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned int getRowSizeInBytes() const </B></TT>
<DD>return the numbers of bytes each row of pixels occupies once it has been packed
<DL><DT><DD></DL><P>
<A NAME="getImageSizeInBytes"></A>
<A NAME="DOC.2.43.24"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned int getImageSizeInBytes() const </B></TT>
<DD>return the numbers of bytes each image (_s*_t) of pixels occupies
<DL><DT><DD></DL><P>
<A NAME="getTotalSizeInBytes"></A>
<A NAME="DOC.2.43.25"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned int getTotalSizeInBytes() const </B></TT>
<DD>return the numbers of bytes the whole row/image/volume of pixels occupies
<DL><DT><DD></DL><P>
<A NAME="data"></A>
<A NAME="DOC.2.43.26"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline unsigned char* data()</B></TT>
<DD>raw image data
<DL><DT><DD></DL><P>
<A NAME="data"></A>
<A NAME="DOC.2.43.27"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned char* data() const </B></TT>
<DD>raw const image data
<DL><DT><DD></DL><P>
<A NAME="data"></A>
<A NAME="DOC.2.43.28"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>unsigned char* data(int column, int row=0, int image=0)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="ensureValidSizeForTexturing"></A>
<A NAME="DOC.2.43.29"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void ensureValidSizeForTexturing()</B></TT>
<DD>Ensure image dimensions are a power of two.
Mip Mapped texture require the image dimensions to be
power of two and are within the maxiumum texture size for
the host machine.
<DL><DT><DD></DL><P>
<A NAME="dirty"></A>
<A NAME="DOC.2.43.30"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void dirty()</B></TT>
<DD>Dirty the image, which increments the modified flag, to force osg::Texture to reload the image
<DL><DT><DD></DL><P>
<A NAME="setModifiedTag"></A>
<A NAME="DOC.2.43.31"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline void setModifiedTag(const unsigned int value)</B></TT>
<DD>Set the modified tag value, only used by osg::Texture when using texture subloading.
<DL><DT><DD></DL><P>
<A NAME="getModifiedTag"></A>
<A NAME="DOC.2.43.32"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>inline const unsigned int getModifiedTag() const </B></TT>
<DD>Get modified tag value, only used by osg::Texture when using texture subloading.
<DL><DT><DD></DL><P>
<A NAME="isPackedType"></A>
<A NAME="DOC.2.43.33"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>static const bool isPackedType(GLenum type)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="computeNumComponents"></A>
<A NAME="DOC.2.43.34"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>static const unsigned int computeNumComponents(GLenum format)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="computePixelSizeInBits"></A>
<A NAME="DOC.2.43.35"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>static const unsigned int computePixelSizeInBits(GLenum format, GLenum type)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="computeRowWidthInBytes"></A>
<A NAME="DOC.2.43.36"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>static const unsigned int computeRowWidthInBytes(int <!1><A HREF="Viewport.html#DOC.2.112.9">width</A>, GLenum format, GLenum type, int packing)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="~Image"></A>
<A NAME="DOC.2.43.37"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>virtual ~Image()</B></TT>
<DL><DT><DD></DL><P>
<A NAME="operator = "></A>
<A NAME="DOC.2.43.38"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="Image.html">Image</A>&amp; operator = (const <!1><A HREF="Image.html">Image</A>&amp;)</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_fileName"></A>
<A NAME="DOC.2.43.39"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>std::string _fileName</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_s"></A>
<A NAME="DOC.2.43.40"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int _s</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_t"></A>
<A NAME="DOC.2.43.41"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int _t</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_r"></A>
<A NAME="DOC.2.43.42"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>int _r</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_internalTextureFormat"></A>
<A NAME="DOC.2.43.43"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>GLint _internalTextureFormat</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_pixelFormat"></A>
<A NAME="DOC.2.43.44"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>GLenum _pixelFormat</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_dataType"></A>
<A NAME="DOC.2.43.45"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>GLenum _dataType</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_packing"></A>
<A NAME="DOC.2.43.46"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>unsigned int _packing</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_data"></A>
<A NAME="DOC.2.43.47"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>unsigned char* _data</B></TT>
<DL><DT><DD></DL><P>
<A NAME="_modifiedTag"></A>
<A NAME="DOC.2.43.48"></A>
<DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>unsigned int _modifiedTag</B></TT>
<DL><DT><DD></DL><P></DL>
<HR><DL><DT><B>This class has no child classes.</B></DL>
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