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| <title>clEnqueueCopyImageToBuffer</title> |
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| <meta name="keywords" content=" clEnqueueCopyImageToBuffer " /> |
| </head> |
| <body> |
| <div class="refentry"> |
| <a id="idm1"></a> |
| <div class="titlepage"></div> |
| <div xmlns="" class="refnamediv"> |
| <a xmlns="http://www.w3.org/1999/xhtml" id="clEnqueueCopyImageToBuffer"></a> |
| <h1> |
| clEnqueueCopyImageToBuffer |
| </h1> |
| <p> |
| Enqueues a command to copy an image object to a buffer 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="_top">cl_int</a> |
| <strong class="fsfunc">clEnqueueCopyImageToBuffer</strong> |
| (</code> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="_top">cl_command_queue</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">command_queue</var>, </td> |
| </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="_top">cl_mem</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">src_image</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="_top">cl_mem</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">dst_buffer</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>const <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="_top">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">src_origin</var>[3], </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>const <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="_top">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">region</var>[3], </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="_top">size_t</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">dst_offset</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="scalarDataTypes.html" target="_top">cl_uint</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">num_events_in_wait_list</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td>const <a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="_top">cl_event</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*event_wait_list</var>, </td> |
| </tr> |
| <tr valign="top"> |
| <td> </td> |
| <td><a xmlns="http://www.w3.org/1999/xhtml" class="link" href="abstractDataTypes.html" target="_top">cl_event</a> <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">*event</var><code>)</code></td> |
| </tr> |
| </table> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="parameters"></a> |
| <h2>Parameters</h2> |
| <div class="variablelist"> |
| <dl class="variablelist"> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| command_queue |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Must be a valid command-queue. The OpenCL context associated with <code class="varname">command_queue</code>, <code class="varname">src_image</code>, and <code class="varname">dst_buffer</code> must be the same. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| src_image |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| A valid image object. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| dst_buffer |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| A valid buffer object. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| src_origin |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Defines the (<span class="emphasis"><em>x, y, z</em></span>) offset in pixels in the image from where to copy. If <code class="varname">src_image</code> is a 2D image object, the z value given by <code class="varname">src_origin</code>[2] must be 0. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| region |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Defines the (<code class="varname">width</code>, <code class="varname">height</code>, <code class="varname">depth</code>) in pixels of the 2D or 3D rectangle to copy. If <code class="varname">src_image</code> is a 2D image object, the <code class="varname">depth</code> value given by <code class="varname">region</code>[2] must be 1. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| dst_offset |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| The offset where to begin copying data into <code class="varname">dst_buffer</code>. The size in bytes of the region to be copied referred to as <code class="varname">dst_cb</code> is computed as <code class="varname">width</code> * <code class="varname">height</code> * <code class="varname">depth</code> * <code class="varname">bytes</code>/<code class="varname">image element</code> if <code class="varname">src_image</code> is a 3D image object and is computed as <code class="varname">width</code> * <code class="varname">height</code> * <code class="varname">bytes</code>/<code class="varname">image element</code> if <code class="varname">src_image</code> is a 2D image object. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| event_wait_list |
| ,</code> |
| <code class="varname"> |
| num_events_in_wait_list |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Specify events that need to complete before this |
| particular command can be executed. If <code class="varname">event_wait_list</code> is NULL, then this particular command does not wait on any event to complete. If <code class="varname">event_wait_list</code> is NULL, <code class="varname">num_events_in_wait_list</code> must be 0. If <code class="varname">event_wait_list</code> is not NULL, the list of events pointed to by <code class="varname">event_wait_list</code> must be valid and <code class="varname">num_events_in_wait_list</code> must be greater than 0. The events specified in <code class="varname">event_wait_list</code> act as synchronization points. The context associated with events in <code class="varname">event_wait_list</code> and <code class="varname">command_queue</code> must be the same. |
| </p> |
| </dd> |
| <dt> |
| <span class="term"> |
| <code class="varname"> |
| event |
| </code> |
| </span> |
| </dt> |
| <dd> |
| <p> |
| Returns an event object that identifies this particular copy command and can be used to |
| query or queue a wait for this particular command to complete. <code class="varname">event</code> can be NULL in which case it will not be possible for the application to query the status of this command or queue a wait for this command to complete. <a class="citerefentry" href="clEnqueueBarrier.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueBarrier</span></span></a> can be used instead. |
| </p> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a id="errors"></a> |
| <h2>Errors</h2> |
| <p> |
| <code class="function">clEnqueueCopyImageToBuffer</code> returns <span class="errorname">CL_SUCCESS</span> if the function is executed successfully. Otherwise, it returns one of the following errors: |
| </p> |
| <div class="itemizedlist"> |
| <ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_COMMAND_QUEUE</span> if <code class="varname">command_queue</code> is not a valid command-queue. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_CONTEXT</span> if the context associated with <code class="varname">command_queue</code>, <code class="varname">src_image</code> and <code class="varname">dst_buffer</code> are not the same or if the context associated with <code class="varname">command_queue</code> and events in <code class="varname">event_wait_list</code> are not the same. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_MEM_OBJECT</span> if <code class="varname">src_image</code> is not a valid image object and <code class="varname">dst_buffer</code> is not a valid buffer object. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if the 2D or 3D rectangular region specified by <code class="varname">src_origin</code> and <code class="varname">src_origin</code> + <code class="varname">region</code> refers to a region outside <code class="varname">src_image</code>, or if the region specified by <code class="varname">dst_offset</code> and <code class="varname">dst_offset</code> + <code class="varname">dst_cb</code> refers to a region outside <code class="varname">dst_buffer</code>. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_VALUE</span> if <code class="varname">src_image</code> is a 2D image object and <code class="varname">src_origin</code>[2] is not equal to 0 or <code class="varname">region</code>[2] is not equal to 1. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_INVALID_EVENT_WAIT_LIST</span> if <code class="varname">event_wait_list</code> is NULL and <code class="varname">num_events_in_wait_list</code> greater than 0, or <code class="varname">event_wait_list</code> is not NULL and <code class="varname">num_events_in_wait_list</code> is 0, or if event objects in <code class="varname">event_wait_list</code> are not valid events. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_MEM_OBJECT_ALLOCATION_FAILURE</span> if there is a failure to allocate memory for |
| data store associated with <code class="varname">src_image</code> or <code class="varname">dst_buffer</code>. |
| </li> |
| <li class="listitem" style="list-style-type: disc"><span class="errorname">CL_OUT_OF_HOST_MEMORY</span> if there is a failure to allocate resources required by the OpenCL implementation on the host. |
| </li> |
| </ul> |
| </div> |
| </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-1.0.pdf#page=72" target="OpenCL Spec">OpenCL Specification</a> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a id="seealso"></a> |
| <h2>Also see</h2> |
| <p> |
| <a class="citerefentry" href="clEnqueueReadBuffer.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueReadBuffer</span></span></a>, |
| <a class="citerefentry" href="clEnqueueWriteBuffer.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueWriteBuffer</span></span></a>, |
| <a class="citerefentry" href="clCreateBuffer.html"><span class="citerefentry"><span class="refentrytitle">clCreateBuffer</span></span></a>, |
| <a class="citerefentry" href="clEnqueueCopyBuffer.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueCopyBuffer</span></span></a>, |
| <a class="citerefentry" href="clEnqueueCopyBufferToImage.html"><span class="citerefentry"><span class="refentrytitle">clEnqueueCopyBufferToImage</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 © 2007-2009 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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