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| <refentry> |
| <refentryinfo> |
| <keywordset> |
| <keyword>clEnqueueCopyBuffer</keyword> |
| </keywordset> |
| </refentryinfo> |
| |
| <refmeta> |
| <refentrytitle> |
| clEnqueueCopyBuffer |
| </refentrytitle> |
| |
| <refmiscinfo> |
| <copyright> |
| <year>2007-2013</year> |
| <holder>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.</holder> |
| </copyright> |
| </refmiscinfo> |
| <manvolnum>3</manvolnum> |
| </refmeta> |
| |
| <!-- ================================ SYNOPSIS --> |
| <!-- For each <funcprototype />, use <funcdef /> for the first part, with the function name |
| set as <function /> and <paramdef /> for each or the parameters, plus <parameter /> for the |
| actual parameter name. If you need multiple synopses, use separate <funcsynopsis /> sets. |
| --> |
| |
| <refnamediv id="clEnqueueCopyBuffer "> |
| <refname> |
| clEnqueueCopyBuffer |
| </refname> |
| |
| <refpurpose> |
| Enqueues a command to copy from one buffer object to another. |
| </refpurpose> |
| </refnamediv> |
| |
| <refsynopsisdiv xmlns:xlink="http://www.w3.org/1999/xlink"><title></title> |
| <funcsynopsis> |
| <funcprototype> |
| <funcdef> |
| <link xlink:href="scalarDataTypes.html">cl_int</link> <function>clEnqueueCopyBuffer </function> |
| </funcdef> |
| |
| <paramdef><link xlink:href="abstractDataTypes.html">cl_command_queue</link><parameter>command_queue</parameter></paramdef> |
| <paramdef><link xlink:href="abstractDataTypes.html">cl_mem</link><parameter>src_buffer</parameter></paramdef> |
| <paramdef><link xlink:href="abstractDataTypes.html">cl_mem</link><parameter>dst_buffer</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">size_t</link><parameter>src_offset</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">size_t</link><parameter>dst_offset</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">size_t</link><parameter>size</parameter></paramdef> |
| <paramdef><link xlink:href="scalarDataTypes.html">cl_uint</link><parameter>num_events_in_wait_list</parameter></paramdef> |
| <paramdef>const <link xlink:href="abstractDataTypes.html">cl_event</link><parameter>*event_wait_list</parameter></paramdef> |
| <paramdef><link xlink:href="abstractDataTypes.html">cl_event</link><parameter>*event</parameter></paramdef> |
| |
| </funcprototype> |
| </funcsynopsis> |
| </refsynopsisdiv> |
| |
| <!-- ================================ PARAMETERS --> |
| <!-- For each <varlistentry />, place the parameter name in <term /><varname />, then the definition in |
| <listitem /><para />. When refering to anything |
| that has a page in this system, use <citerefentry /><refentrytitle /> to make it a link. |
| |
| --> |
| <refsect1 id="parameters"> |
| <title>Parameters</title> |
| <variablelist> |
| <varlistentry> |
| <term> <varname> command_queue </varname> </term> |
| <listitem> |
| <para> |
| The host command-queue in which the copy command will be queued. The |
| OpenCL context associated with <varname>command_queue</varname>, |
| <varname>src_buffer</varname>, and <varname>dst_buffer</varname> must be |
| the same. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname> src_offset </varname> </term> |
| <listitem> |
| <para> |
| The offset where to begin copying data from <varname>src_buffer</varname>. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname> dst_offset </varname> </term> |
| <listitem> |
| <para> |
| The offset where to begin copying data into <varname>dst_buffer</varname>. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname>size</varname> </term> |
| <listitem> |
| <para> |
| Refers to the size in bytes to copy. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> |
| <varname> |
| event_wait_list |
| </varname> |
| </term> |
| <term> |
| <varname> |
| num_events_in_wait_list |
| </varname> |
| </term> |
| <listitem> |
| <para> |
| Specify events that need to complete before this particular |
| command can be executed. If <varname>event_wait_list</varname> |
| is NULL, then this particular command does not wait on any |
| event to complete. If <varname>event_wait_list</varname> is |
| NULL, <varname>num_events_in_wait_list</varname> must be 0. If |
| <varname>event_wait_list</varname> is not NULL, the list of events |
| pointed to by <varname>event_wait_list</varname> must be valid |
| and <varname>num_events_in_wait_list</varname> must be greater |
| than 0. The events specified in <varname>event_wait_list</varname> |
| act as synchronization points. The context associated with events in |
| <varname>event_wait_list</varname> and <varname>command_queue</varname> must |
| be the same. The memory associated with <varname>event_wait_list</varname> |
| can be reused or freed after the function returns. |
| </para> |
| </listitem> |
| </varlistentry> |
| |
| <varlistentry> |
| <term> <varname> event </varname> </term> |
| <listitem> |
| <para> |
| 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. <varname>event</varname> 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. |
| <citerefentry><refentrytitle>clEnqueueBarrierWithWaitList</refentrytitle></citerefentry> |
| can be used instead. If the <varname>event_wait_list</varname> |
| and the <varname>event</varname> arguments are not NULL, the |
| <varname>event</varname> argument should not refer to an element of the |
| <varname>event_wait_list</varname> array. |
| </para> |
| </listitem> |
| </varlistentry> |
| </variablelist> |
| </refsect1> |
| |
| <!-- ================================ NOTES --> |
| |
| |
| <!-- ================================ ERRORS --> |
| |
| <refsect1 id="errors"><title>Errors</title> |
| <para> |
| Returns <errorname>CL_SUCCESS</errorname> if the function is executed successfully. |
| Otherwise, it returns one of the following errors: |
| </para> |
| |
| <itemizedlist mark="disc"> |
| <listitem> |
| <errorname>CL_INVALID_COMMAND_QUEUE</errorname> if <varname>command_queue</varname> |
| is not a valid host command-queue. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_CONTEXT</errorname> if the context associated |
| with <varname>command_queue</varname>, <varname>src_buffer</varname>, and |
| <varname>dst_buffer</varname> are not the same or if the context associated with |
| <varname>command_queue</varname> and events in <varname>event_wait_list</varname> |
| are not the same. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_MEM_OBJECT</errorname> if <varname>src_buffer</varname> |
| and <varname>dst_buffer</varname> are not valid buffer objects. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>src_offset</varname>, |
| <varname>dst_offset</varname>, <varname>size</varname>, <varname>src_offset</varname> |
| + <varname>size</varname>, or <varname>dst_offset</varname> + <varname>size</varname> |
| require accessing elements outside the <varname>src_buffer</varname> and |
| <varname>dst_buffer</varname> buffer objects respectively. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_VALUE</errorname> if <varname>size</varname> is 0. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_INVALID_EVENT_WAIT_LIST</errorname> |
| if <varname>event_wait_list</varname> is NULL and |
| <varname>num_events_in_wait_list</varname> is > |
| 0, or <varname>event_wait_list</varname> is not NULL and |
| <varname>num_events_in_wait_list</varname> is 0, or if event objects in |
| <varname>event_wait_list</varname> are not valid events. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_MISALIGNED_SUB_BUFFER_OFFSET </errorname> if |
| <varname>src_buffer</varname> is a sub-buffer object and <varname>offset</varname> |
| specified when the sub-buffer object is created is not aligned to |
| <constant>CL_DEVICE_MEM_BASE_ADDR_ALIGN</constant> value for device associated |
| with <varname>queue</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_MISALIGNED_SUB_BUFFER_OFFSET </errorname> if |
| <varname>dst_buffer</varname> is a sub-buffer object and <varname>offset</varname> |
| specified when the sub-buffer object is created is not aligned to |
| <constant>CL_DEVICE_MEM_BASE_ADDR_ALIGN</constant> value for device associated |
| with <varname>queue</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_MEM_COPY_OVERLAP</errorname> if <varname>src_buffer</varname> |
| and <varname>dst_buffer</varname> are the same buffer or subbuffer object and |
| the source and destination regions overlap or if <varname>src_buffer</varname> |
| and <varname>dst_buffer</varname> are different sub-buffers of the same associated |
| buffer object and they overlap. The regions overlap if <varname>src_offset</varname> |
| ≤ <varname>dst_offset</varname> ≤ <varname>src_offset</varname> + size - |
| 1, or if <varname>dst_offset</varname> ≤ <varname>src_offset</varname> ≤ |
| <varname>dst_offset</varname> + size - 1. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_MEM_OBJECT_ALLOCATION_FAILURE</errorname> if there is a failure |
| to allocate memory for data store associated with <varname>src_buffer</varname> |
| or <varname>dst_buffer</varname>. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_OUT_OF_RESOURCES</errorname> if there is a failure to allocate |
| resources required by the OpenCL implementation on the device. |
| </listitem> |
| |
| <listitem> |
| <errorname>CL_OUT_OF_HOST_MEMORY</errorname> if there is a failure to allocate |
| resources required by the OpenCL implementation on the host. |
| </listitem> |
| </itemizedlist> |
| </refsect1> |
| |
| <!-- ================================ EXAMPLE --> |
| <!-- DO NOT DELETE IN CASE AN EXAMPLE IS ADDED IN THE FUTURE --> |
| <!-- |
| <refsect2 id="example1"> |
| <title> |
| Example |
| </title> |
| |
| <informaltable frame="none"> |
| <tgroup cols="1" align="left" colsep="0" rowsep="0"> |
| <colspec colname="col1" colnum="1" /> |
| <tbody> |
| <row> |
| <entry> |
| Example goes here - it will be set in "code" type with white space preserved. |
| </entry> |
| </row> |
| </tbody> |
| </tgroup> |
| </informaltable> |
| </refsect2> |
| --> |
| |
| <!-- ================================ SPECIFICATION --> |
| <!-- Set the "uri" attribute in the <olink /> element to the "named destination" for the PDF page |
| --> |
| <refsect1 id="specification"><title>Specification</title> |
| <para> |
| <imageobject> |
| <imagedata fileref="pdficon_small1.gif" format="gif" /> |
| </imageobject> |
| |
| |
| <olink uri="clEnqueueCopyBuffer">OpenCL Specification</olink> |
| </para> |
| </refsect1> |
| |
| <!-- ================================ ALSO SEE --> |
| |
| <refsect1 id="seealso"><title>Also see</title> |
| <para> |
| <citerefentry><refentrytitle>clEnqueueReadBuffer</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clEnqueueWriteBuffer</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clCreateBuffer</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clCreateSubBuffer</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clEnqueueCopyBufferToImage</refentrytitle></citerefentry>, |
| <citerefentry><refentrytitle>clEnqueueCopyImageToBuffer</refentrytitle></citerefentry> |
| </para> |
| </refsect1> |
| |
| <!-- ================================ COPYRIGHT --> |
| <!-- Content included from copyright.inc.xsl --> |
| |
| <refsect3 id="Copyright"><title></title> |
| <imageobject> |
| <imagedata fileref="KhronosLogo.jpg" format="jpg" /> |
| </imageobject> |
| <para /> |
| </refsect3> |
| |
| <!-- 22-Oct-2015, API rev. 19 --> |
| </refentry> |
| |