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<li class="navelem"><a class="el" href="namespaceCEGUI.html">CEGUI</a> </li>
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<!-- doxytag: class="CEGUI::OpenGLTexture" --><!-- doxytag: inherits="CEGUI::Texture" -->
<p><a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> implementation for the <a class="el" href="classCEGUI_1_1OpenGLRenderer.html" title="Renderer class to interface with OpenGL.">OpenGLRenderer</a>.
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<p><a href="classCEGUI_1_1OpenGLTexture-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab9dad01ba3745cbbaf2ffe8ae1e772e1"></a><!-- doxytag: member="CEGUI::OpenGLTexture::setOpenGLTexture" ref="ab9dad01ba3745cbbaf2ffe8ae1e772e1" args="(GLuint tex, const Size &size)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#ab9dad01ba3745cbbaf2ffe8ae1e772e1">setOpenGLTexture</a> (GLuint tex, const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">set the openGL texture that this <a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> is based on to the specified texture, with the specified size. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">GLuint </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#ac381786b999d877d16691f2191198244">getOpenGLTexture</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the internal OpenGL texture id used by this <a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> object. <a href="#ac381786b999d877d16691f2191198244"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#ae7465945cf05cb3b29710181a4b00b21">setTextureSize</a> (const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &sz)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">set the size of the internal texture. <a href="#ae7465945cf05cb3b29710181a4b00b21"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a1a91faad2eea97689c164634156ce44a">grabTexture</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Grab the texture to a local buffer. <a href="#a1a91faad2eea97689c164634156ce44a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae988679e3477c781285b177f45d6cff5"></a><!-- doxytag: member="CEGUI::OpenGLTexture::restoreTexture" ref="ae988679e3477c781285b177f45d6cff5" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#ae988679e3477c781285b177f45d6cff5">restoreTexture</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Restore the texture from the locally buffered copy previously create by a call to grabTexture. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classCEGUI_1_1Size.html">Size</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a15c130382430151075ebbdd5edc0d7e2">getSize</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the current pixel size of the texture. <a href="#a15c130382430151075ebbdd5edc0d7e2"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classCEGUI_1_1Size.html">Size</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a3eb6251be58218921c1d9832e1b9f537">getOriginalDataSize</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the original pixel size of the data loaded into the texture. <a href="#a3eb6251be58218921c1d9832e1b9f537"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classCEGUI_1_1Vector2.html">Vector2</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#afa2e23043b20cdc552868898316612f5">getTexelScaling</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns pixel to texel scale values that should be used for converting pixel values to texture co-ords. <a href="#afa2e23043b20cdc552868898316612f5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a59ef0dad6986679fa0a4ad27e2835b9a">loadFromFile</a> (const <a class="el" href="classCEGUI_1_1String.html">String</a> &filename, const <a class="el" href="classCEGUI_1_1String.html">String</a> &resourceGroup)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Loads the specified image file into the texture. The texture is resized as required to hold the image. <a href="#a59ef0dad6986679fa0a4ad27e2835b9a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a70fc6856c52c051296deb26cc81ae1f8">loadFromMemory</a> (const void *buffer, const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &buffer_size, <a class="el" href="classCEGUI_1_1Texture.html#a2156af785c41d517b3d8c6668ac08e45">PixelFormat</a> pixel_format)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Loads (copies) an image in memory into the texture. The texture is resized as required to hold the image. <a href="#a70fc6856c52c051296deb26cc81ae1f8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a7578b8643ccbfa24f88d408dcf4aa279">saveToMemory</a> (void *buffer)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Save / dump the content of the texture to a memory buffer. The dumped pixel format is always RGBA (4 bytes per pixel). <a href="#a7578b8643ccbfa24f88d408dcf4aa279"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afc94eca51750f2daa4484c62d77702f4"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLTexture" ref="afc94eca51750f2daa4484c62d77702f4" args="(OpenGLRenderer &owner)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#afc94eca51750f2daa4484c62d77702f4">OpenGLTexture</a> (<a class="el" href="classCEGUI_1_1OpenGLRenderer.html">OpenGLRenderer</a> &owner)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Basic constructor. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1e0267fd1f63ea7d4fa9e051b08a6d8d"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLTexture" ref="a1e0267fd1f63ea7d4fa9e051b08a6d8d" args="(OpenGLRenderer &owner, const String &filename, const String &resourceGroup)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a1e0267fd1f63ea7d4fa9e051b08a6d8d">OpenGLTexture</a> (<a class="el" href="classCEGUI_1_1OpenGLRenderer.html">OpenGLRenderer</a> &owner, const <a class="el" href="classCEGUI_1_1String.html">String</a> &filename, const <a class="el" href="classCEGUI_1_1String.html">String</a> &resourceGroup)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor that creates a <a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> from an image file. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af77ca4f7a3428c6dc3cdc23d00a6686a"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLTexture" ref="af77ca4f7a3428c6dc3cdc23d00a6686a" args="(OpenGLRenderer &owner, const Size &size)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#af77ca4f7a3428c6dc3cdc23d00a6686a">OpenGLTexture</a> (<a class="el" href="classCEGUI_1_1OpenGLRenderer.html">OpenGLRenderer</a> &owner, const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor that creates a <a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> with a given size. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af3fb9ded2123263f4033417393d792f5"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLTexture" ref="af3fb9ded2123263f4033417393d792f5" args="(OpenGLRenderer &owner, GLuint tex, const Size &size)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#af3fb9ded2123263f4033417393d792f5">OpenGLTexture</a> (<a class="el" href="classCEGUI_1_1OpenGLRenderer.html">OpenGLRenderer</a> &owner, GLuint tex, const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &size)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor that wraps an existing GL texture. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac526b435a5d72cb10ad0a1e5c459f227"></a><!-- doxytag: member="CEGUI::OpenGLTexture::~OpenGLTexture" ref="ac526b435a5d72cb10ad0a1e5c459f227" args="()" -->
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#ac526b435a5d72cb10ad0a1e5c459f227">~OpenGLTexture</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab2389e8941c5d38a0ddad8f3dd09bc6d"></a><!-- doxytag: member="CEGUI::OpenGLTexture::generateOpenGLTexture" ref="ab2389e8941c5d38a0ddad8f3dd09bc6d" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#ab2389e8941c5d38a0ddad8f3dd09bc6d">generateOpenGLTexture</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">generate the OpenGL texture and set some initial options. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0a792898d7e766780e29d6352857f24e"></a><!-- doxytag: member="CEGUI::OpenGLTexture::updateCachedScaleValues" ref="a0a792898d7e766780e29d6352857f24e" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a0a792898d7e766780e29d6352857f24e">updateCachedScaleValues</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">updates cached scale value used to map pixels to texture co-ords. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a719641185dfb668cf725d81a52c4f533"></a><!-- doxytag: member="CEGUI::OpenGLTexture::cleanupOpenGLTexture" ref="a719641185dfb668cf725d81a52c4f533" args="()" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a719641185dfb668cf725d81a52c4f533">cleanupOpenGLTexture</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">clean up the GL texture, or the grab buffer if it had been grabbed <br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-attribs"></a>
Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a40985213377f308dc0d502d98d023fa5"></a><!-- doxytag: member="CEGUI::OpenGLTexture::d_ogltexture" ref="a40985213377f308dc0d502d98d023fa5" args="" -->
GLuint </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a40985213377f308dc0d502d98d023fa5">d_ogltexture</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">The OpenGL texture we're wrapping. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8de675226a6176bb0cd49e74fbaec8e9"></a><!-- doxytag: member="CEGUI::OpenGLTexture::d_size" ref="a8de675226a6176bb0cd49e74fbaec8e9" args="" -->
<a class="el" href="classCEGUI_1_1Size.html">Size</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a8de675226a6176bb0cd49e74fbaec8e9">d_size</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classCEGUI_1_1Size.html" title="Class that holds the size (width & height) of something.">Size</a> of the texture. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aca5b1ace05044d6414610ed81d5545eb"></a><!-- doxytag: member="CEGUI::OpenGLTexture::d_grabBuffer" ref="aca5b1ace05044d6414610ed81d5545eb" args="" -->
uint8 * </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#aca5b1ace05044d6414610ed81d5545eb">d_grabBuffer</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">cached image data for restoring the texture. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4e59d10b98ec9ca53152204b49c6cf76"></a><!-- doxytag: member="CEGUI::OpenGLTexture::d_dataSize" ref="a4e59d10b98ec9ca53152204b49c6cf76" args="" -->
<a class="el" href="classCEGUI_1_1Size.html">Size</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a4e59d10b98ec9ca53152204b49c6cf76">d_dataSize</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">original pixel of size data loaded into texture <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1e5cae65a67e7563d00e6388c962a4db"></a><!-- doxytag: member="CEGUI::OpenGLTexture::d_texelScaling" ref="a1e5cae65a67e7563d00e6388c962a4db" args="" -->
<a class="el" href="classCEGUI_1_1Vector2.html">Vector2</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a1e5cae65a67e7563d00e6388c962a4db">d_texelScaling</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">cached pixel to texel mapping scale values. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a91b2724b18eb56f30978fd964f6eb02a"></a><!-- doxytag: member="CEGUI::OpenGLTexture::d_owner" ref="a91b2724b18eb56f30978fd964f6eb02a" args="" -->
<a class="el" href="classCEGUI_1_1OpenGLRenderer.html">OpenGLRenderer</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classCEGUI_1_1OpenGLTexture.html#a91b2724b18eb56f30978fd964f6eb02a">d_owner</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classCEGUI_1_1OpenGLRenderer.html" title="Renderer class to interface with OpenGL.">OpenGLRenderer</a> that created and owns this <a class="el" href="classCEGUI_1_1OpenGLTexture.html" title="Texture implementation for the OpenGLRenderer.">OpenGLTexture</a>. <br/></td></tr>
<tr><td colspan="2"><h2><a name="friends"></a>
Friends</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a856435f1b6e64e92798b0b3a128b87e7"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLRenderer::createTexture" ref="a856435f1b6e64e92798b0b3a128b87e7" args="(void)" -->
<a class="el" href="classCEGUI_1_1Texture.html">Texture</a> & </td><td class="memItemRight" valign="bottom"><b>OpenGLRenderer::createTexture</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af9d2dc4c718ec812a31df37be64c0cc7"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLRenderer::createTexture" ref="af9d2dc4c718ec812a31df37be64c0cc7" args="(const String &, const String &)" -->
<a class="el" href="classCEGUI_1_1Texture.html">Texture</a> & </td><td class="memItemRight" valign="bottom"><b>OpenGLRenderer::createTexture</b> (const <a class="el" href="classCEGUI_1_1String.html">String</a> &, const <a class="el" href="classCEGUI_1_1String.html">String</a> &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3984f84dfb272d458382d4a0de859124"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLRenderer::createTexture" ref="a3984f84dfb272d458382d4a0de859124" args="(const Size &)" -->
<a class="el" href="classCEGUI_1_1Texture.html">Texture</a> & </td><td class="memItemRight" valign="bottom"><b>OpenGLRenderer::createTexture</b> (const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4515f5aaf8270c9558fb74e25c1284e7"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLRenderer::createTexture" ref="a4515f5aaf8270c9558fb74e25c1284e7" args="(GLuint, const Size &)" -->
<a class="el" href="classCEGUI_1_1Texture.html">Texture</a> & </td><td class="memItemRight" valign="bottom"><b>OpenGLRenderer::createTexture</b> (GLuint, const <a class="el" href="classCEGUI_1_1Size.html">Size</a> &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae48c54c3bd0d3ac12bf8842e7ce37ae1"></a><!-- doxytag: member="CEGUI::OpenGLTexture::OpenGLRenderer::destroyTexture" ref="ae48c54c3bd0d3ac12bf8842e7ce37ae1" args="(Texture &)" -->
void </td><td class="memItemRight" valign="bottom"><b>OpenGLRenderer::destroyTexture</b> (<a class="el" href="classCEGUI_1_1Texture.html">Texture</a> &)</td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p><a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> implementation for the <a class="el" href="classCEGUI_1_1OpenGLRenderer.html" title="Renderer class to interface with OpenGL.">OpenGLRenderer</a>. </p>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ac381786b999d877d16691f2191198244"></a><!-- doxytag: member="CEGUI::OpenGLTexture::getOpenGLTexture" ref="ac381786b999d877d16691f2191198244" args="() const " -->
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<td class="memname">GLuint CEGUI::OpenGLTexture::getOpenGLTexture </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<div class="memdoc">
<p>Return the internal OpenGL texture id used by this <a class="el" href="classCEGUI_1_1Texture.html" title="Abstract base class specifying the required interface for Texture objects.">Texture</a> object. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>id of the OpenGL texture that this object is using. </dd></dl>
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</div>
<a class="anchor" id="a3eb6251be58218921c1d9832e1b9f537"></a><!-- doxytag: member="CEGUI::OpenGLTexture::getOriginalDataSize" ref="a3eb6251be58218921c1d9832e1b9f537" args="() const " -->
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<td class="memname">const <a class="el" href="classCEGUI_1_1Size.html">Size</a>& CEGUI::OpenGLTexture::getOriginalDataSize </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<div class="memdoc">
<p>Returns the original pixel size of the data loaded into the texture. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>reference to a <a class="el" href="classCEGUI_1_1Size.html" title="Class that holds the size (width & height) of something.">Size</a> object that describes the original size, in pixels, of the data loaded into the texture. </dd></dl>
<p>Implements <a class="el" href="classCEGUI_1_1Texture.html#aae220cf1d9dc112ef5f00a54628c36ce">CEGUI::Texture</a>.</p>
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</div>
<a class="anchor" id="a15c130382430151075ebbdd5edc0d7e2"></a><!-- doxytag: member="CEGUI::OpenGLTexture::getSize" ref="a15c130382430151075ebbdd5edc0d7e2" args="() const " -->
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<td class="memname">const <a class="el" href="classCEGUI_1_1Size.html">Size</a>& CEGUI::OpenGLTexture::getSize </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<div class="memdoc">
<p>Returns the current pixel size of the texture. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Reference to a <a class="el" href="classCEGUI_1_1Size.html" title="Class that holds the size (width & height) of something.">Size</a> object that describes the size of the texture in pixels. </dd></dl>
<p>Implements <a class="el" href="classCEGUI_1_1Texture.html#a362b2b8c4a77f2380a1dd10f609c86ae">CEGUI::Texture</a>.</p>
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<a class="anchor" id="afa2e23043b20cdc552868898316612f5"></a><!-- doxytag: member="CEGUI::OpenGLTexture::getTexelScaling" ref="afa2e23043b20cdc552868898316612f5" args="() const " -->
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<td class="memname">const <a class="el" href="classCEGUI_1_1Vector2.html">Vector2</a>& CEGUI::OpenGLTexture::getTexelScaling </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Returns pixel to texel scale values that should be used for converting pixel values to texture co-ords. </p>
<dl class="return"><dt><b>Returns:</b></dt><dd>Reference to a <a class="el" href="classCEGUI_1_1Vector2.html" title="Class used as a two dimensional vector (aka a Point)">Vector2</a> object that describes the scaling values required to accurately map pixel positions to texture co-ordinates. </dd></dl>
<p>Implements <a class="el" href="classCEGUI_1_1Texture.html#a3b71ae3940f4e76673af663aa475b199">CEGUI::Texture</a>.</p>
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<a class="anchor" id="a1a91faad2eea97689c164634156ce44a"></a><!-- doxytag: member="CEGUI::OpenGLTexture::grabTexture" ref="a1a91faad2eea97689c164634156ce44a" args="()" -->
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<td class="memname">void CEGUI::OpenGLTexture::grabTexture </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<div class="memdoc">
<p>Grab the texture to a local buffer. </p>
<p>This will destroy the OpenGL texture, and restoreTexture must be called before using it again. </p>
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<a class="anchor" id="a59ef0dad6986679fa0a4ad27e2835b9a"></a><!-- doxytag: member="CEGUI::OpenGLTexture::loadFromFile" ref="a59ef0dad6986679fa0a4ad27e2835b9a" args="(const String &filename, const String &resourceGroup)" -->
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<td class="memname">void CEGUI::OpenGLTexture::loadFromFile </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classCEGUI_1_1String.html">String</a> & </td>
<td class="paramname"><em>filename</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classCEGUI_1_1String.html">String</a> & </td>
<td class="paramname"><em>resourceGroup</em> </td>
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<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
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<p>Loads the specified image file into the texture. The texture is resized as required to hold the image. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">filename</td><td>The filename of the image file that is to be loaded into the texture</td></tr>
<tr><td class="paramname">resourceGroup</td><td>Resource group identifier to be passed to the resource provider when loading the image file.</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Nothing. </dd></dl>
<p>Implements <a class="el" href="classCEGUI_1_1Texture.html#a76b2d285c2af474739bf2b608d857d0b">CEGUI::Texture</a>.</p>
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<a class="anchor" id="a70fc6856c52c051296deb26cc81ae1f8"></a><!-- doxytag: member="CEGUI::OpenGLTexture::loadFromMemory" ref="a70fc6856c52c051296deb26cc81ae1f8" args="(const void *buffer, const Size &buffer_size, PixelFormat pixel_format)" -->
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<td class="memname">void CEGUI::OpenGLTexture::loadFromMemory </td>
<td>(</td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>buffer</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="classCEGUI_1_1Size.html">Size</a> & </td>
<td class="paramname"><em>buffer_size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classCEGUI_1_1Texture.html#a2156af785c41d517b3d8c6668ac08e45">PixelFormat</a> </td>
<td class="paramname"><em>pixel_format</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Loads (copies) an image in memory into the texture. The texture is resized as required to hold the image. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">buffer</td><td>Pointer to the buffer containing the image data.</td></tr>
<tr><td class="paramname">buffer_size</td><td><a class="el" href="classCEGUI_1_1Size.html" title="Class that holds the size (width & height) of something.">Size</a> of the buffer (in pixels as specified by <em>pixelFormat</em>)</td></tr>
<tr><td class="paramname">pixel_format</td><td>PixelFormat value describing the format contained in <em>buffPtr</em>.</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Nothing. </dd></dl>
<p>Implements <a class="el" href="classCEGUI_1_1Texture.html#ab4ec02a12731a72069f59ef475c20da2">CEGUI::Texture</a>.</p>
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<a class="anchor" id="a7578b8643ccbfa24f88d408dcf4aa279"></a><!-- doxytag: member="CEGUI::OpenGLTexture::saveToMemory" ref="a7578b8643ccbfa24f88d408dcf4aa279" args="(void *buffer)" -->
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<td class="memname">void CEGUI::OpenGLTexture::saveToMemory </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>buffer</em></td><td>)</td>
<td><code> [virtual]</code></td>
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</table>
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<p>Save / dump the content of the texture to a memory buffer. The dumped pixel format is always RGBA (4 bytes per pixel). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">buffer</td><td>Pointer to the buffer that is to receive the image data. You must make sure that this buffer is large enough to hold the dumped texture data, the required pixel dimensions can be established by calling getSize. </td></tr>
</table>
</dd>
</dl>
<p>Implements <a class="el" href="classCEGUI_1_1Texture.html#a6a927c3292f409f03f31c18ab9a6e957">CEGUI::Texture</a>.</p>
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</div>
<a class="anchor" id="ae7465945cf05cb3b29710181a4b00b21"></a><!-- doxytag: member="CEGUI::OpenGLTexture::setTextureSize" ref="ae7465945cf05cb3b29710181a4b00b21" args="(const Size &sz)" -->
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<td class="memname">void CEGUI::OpenGLTexture::setTextureSize </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classCEGUI_1_1Size.html">Size</a> & </td>
<td class="paramname"><em>sz</em></td><td>)</td>
<td></td>
</tr>
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<p>set the size of the internal texture. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">sz</td><td>size for the internal texture, in pixels.</td></tr>
</table>
</dd>
</dl>
<dl class="note"><dt><b>Note:</b></dt><dd>Depending upon the hardware capabilities, the actual final size of the texture may be larger than what is specified when calling this function. The texture will never be smaller than what you request here. To discover the actual size, call getSize.</dd></dl>
<dl><dt><b>Exceptions:</b></dt><dd>
<table class="exception">
<tr><td class="paramname"><a class="el" href="classCEGUI_1_1RendererException.html" title="Exception class used for problems in the rendering subsystem classes.">RendererException</a></td><td>thrown if the hardware is unable to support a texture large enough to fulfill the requested size.</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Nothing. </dd></dl>
</div>
</div>
</div>
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