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| </style> |
| <title>write_image (3D)</title> |
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| <meta name="keywords" content="write_image3d" /> |
| </head> |
| <body> |
| <div class="refentry"> |
| <a id="id-1"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="write_image3d"></a> |
| <h1>write_image</h1> |
| <p> |
| Write <code xmlns="http://www.w3.org/1999/xhtml" class="varname">color</code> value to location in a 3D image object. |
| </p> |
| </div> |
| <div class="refsynopsisdiv"> |
| <h2></h2> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> |
| <strong class="fsfunc"> |
| write_imagef |
| </strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="otherDataTypes.html" target="pagedisplay">image3d_t</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">image</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">int4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">coord</var> |
| , </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">float4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">color</var> |
| <code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> |
| <strong class="fsfunc"> |
| write_imagei |
| </strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="otherDataTypes.html" target="pagedisplay">image3d_t</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">image</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">int4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">coord</var> |
| , </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">int4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">color</var> |
| <code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> |
| <strong class="fsfunc"> |
| write_imageui |
| </strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="otherDataTypes.html" target="pagedisplay">image3d_t</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">image</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">int4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">coord</var> |
| , </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">uint4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">color</var> |
| <code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| <div class="funcsynopsis"> |
| <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"> |
| <tr valign="bottom"> |
| <td> |
| <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef"> |
| <a class="link" href="scalarDataTypes.html" target="pagedisplay">void</a> |
| <strong class="fsfunc"> |
| write_imageh |
| </strong> |
| (</code> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="otherDataTypes.html" target="pagedisplay">image3d_t</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">image</var> |
| , </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">int4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">coord</var> |
| , </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td> |
| <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="vectorDataTypes.html" target="pagedisplay">half4</a> |
| <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">color</var> |
| <code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="description"></a> |
| <h2>Description</h2> |
| <p> |
| Writes to a 3D image memory object are only supported when the |
| <a class="citerefentry" href="cl_khr_3d_image_writes.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_3d_image_writes</span></span></a> |
| extension is implemented. Reads and writes to the same 3D image memory object are |
| not allowed in a kernel. |
| </p> |
| <p> |
| An application that wants to use this extension to write to 3D |
| image memory objects will need to include the <code class="code">#pragma OPENCL EXTENSION |
| <a class="citerefentry" href="cl_khr_3d_image_writes.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_3d_image_writes</span></span></a> |
| : enable</code> directive in the OpenCL program source. |
| </p> |
| <p> |
| These functions write <code class="varname">color</code> value to location specified by coordinate <span class="emphasis"><em>(x, |
| y, z)</em></span> in the 3D image object specified by <code class="varname">image</code>. Appropriate |
| data format conversion to the specified image format is done before writing |
| the color value. <span class="emphasis"><em>coord.x</em></span>, <span class="emphasis"><em>coord.y</em></span> and |
| <span class="emphasis"><em>coord.z</em></span> are considered to be unnormalized coordinates and must |
| be in the range 0 ... image width - 1, 0 ... image height - 1 and 0 ... image depth - 1. |
| </p> |
| <p> |
| <code class="function">write_imagef</code> can only be used with image objects created with |
| <code class="varname">image_channel_data_type</code> set to one of the pre-defined packed formats |
| or set to <code class="constant">CL_SNORM_INT8</code>, <code class="constant">CL_UNORM_INT8</code>, |
| <code class="constant">CL_SNORM_INT16</code>, <code class="constant">CL_UNORM_INT16</code>, |
| <code class="constant">CL_HALF_FLOAT</code> or <code class="constant">CL_FLOAT</code>. Appropriate |
| data format conversion will be done to convert channel data from a floating-point |
| value to actual data format in which the channels are stored. |
| </p> |
| <p> |
| <code class="function">write_imagei</code> can only be used with image objects created with |
| <code class="varname">image_channel_data_type</code> set to one of the following values: |
| <code class="constant">CL_SIGNED_INT8</code>, <code class="constant">CL_SIGNED_INT16</code>, or |
| <code class="constant">CL_SIGNED_INT32</code>. |
| </p> |
| <p> |
| <code class="function">write_imageui</code> can only be used with image objects created with |
| <code class="varname">image_channel_data_type</code> set to one of the following values: |
| <code class="constant">CL_UNSIGNED_INT8</code>, <code class="constant">CL_UNSIGNED_INT16</code>, |
| or <code class="constant">CL_UNSIGNED_INT32</code>. |
| </p> |
| <p> |
| The behavior of <code class="function">write_imagef</code>, <code class="function">write_imagei</code> |
| and <code class="function">write_imageui</code> for image objects with |
| <code class="varname">image_channel_data_type</code> values not specified in the description |
| above or with <span class="emphasis"><em>(x, y, z)</em></span> coordinate values that are not in the range |
| (0 ... image width - 1, 0 ... image height - 1, 0 ... image depth - 1), respectively, |
| is undefined. |
| </p> |
| <p> |
| <code class="function">write_imageh</code> can only be used with image objects created with |
| <code class="varname">image_channel_data_type</code> set to one of the pre-defined packed formats |
| or set to <code class="constant">CL_SNORM_INT8</code>, <code class="constant">CL_UNORM_INT8</code>, |
| <code class="constant">CL_SNORM_INT16</code>, <code class="constant">CL_UNORM_INT16</code> or |
| <code class="constant">CL_HALF_FLOAT</code>. |
| </p> |
| <p> |
| The behavior of <code class="function">write_imageh</code> for image objects created with |
| <code class="varname">image_channel_data_type</code> values not specified in the description |
| above or with <span class="emphasis"><em>(x, y, z)</em></span> coordinate values that are not in the |
| range (0 ... image width - 1, 0 ... image height - 1, 0 ... image depth - 1), |
| respectively, is undefined. |
| </p> |
| <p> |
| An application that wants to use <span class="type">half</span> and |
| <span class="type">half<em class="replaceable"><code>n</code></em></span> types will need to include the |
| <code class="code">#pragma OPENCL EXTENSION cl_khr_fp16 : enable</code> directive. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="specification"></a> |
| <h2>Specification</h2> |
| <p> |
| <img src="pdficon_small1.gif" /> |
| |
| <a href="http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf#page=12" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="imageFunctions.html"><span class="citerefentry"><span class="refentrytitle">Image Functions</span></span></a>, |
| <a class="citerefentry" href="cl_khr_3d_image_writes.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_3d_image_writes</span></span></a> |
| <a class="citerefentry" href="scalarDataTypes.html"><span class="citerefentry"><span class="refentrytitle">scalarDataTypes</span></span></a> |
| </p> |
| </div> |
| <div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2011 The Khronos Group Inc. |
| Permission is hereby granted, free of charge, to any person obtaining a |
| copy of this software and/or associated documentation files (the |
| "Materials"), to deal in the Materials without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Materials, and to |
| permit persons to whom the Materials are furnished to do so, subject to |
| the condition that this copyright notice and permission notice shall be included |
| in all copies or substantial portions of the Materials. |
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