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| </head> |
| <body class="book"> |
| <div id="header"> |
| <h1>cl_intel_create_buffer_with_properties</h1> |
| </div> |
| <div id="content"> |
| <div class="sect1"> |
| <h2 id="_name_strings">Name Strings</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p><code>cl_intel_create_buffer_with_properties</code></p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_contact">Contact</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Kris Kang, Intel (kris <em>dot</em> kang <em>at</em> intel <em>dot</em> com)</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_contributors">Contributors</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Kris Kang, Intel<br> |
| Michael Kinsner, Intel<br> |
| Peter Yiannacouras, Intel<br> |
| Ben Ashbaugh, Intel</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_notice">Notice</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Copyright (c) 2020 Intel Corporation. All rights reserved.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_status">Status</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>Final Draft</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_version">Version</h2> |
| <div class="sectionbody"> |
| <table class="tableblock frame-all grid-all" style="width: 40%;"> |
| <colgroup> |
| <col style="width: 50%;"> |
| <col style="width: 50%;"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">Last Modified</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">2020-05-29</p></td> |
| </tr> |
| <tr> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">Revision</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">1</p></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_dependencies">Dependencies</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This extension is written against the OpenCL Specification Version 1.0, Revision 48.</p> |
| </div> |
| <div class="paragraph"> |
| <p>This extension requires OpenCL 1.0 or later.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_overview">Overview</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>This extension allows OpenCL 1.x and 2.x devices to support the clCreateBufferWithProperties API that was added in OpenCL 3.0. This allows older OpenCL implementations to support other optional extensions or features that use the clCreateBufferWithProperties API to specify additional buffer properties, without recreating the API that is already part of OpenCL 3.0.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_new_api_functions">New API Functions</h2> |
| <div class="sectionbody"> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code>cl_mem CL_API_CALL clCreateBufferWithPropertiesINTEL( |
| cl_context context, |
| const cl_mem_properties_intel* properties, |
| cl_mem_flags flags, |
| size_t size, |
| void* host_ptr, |
| cl_int* errcode_ret);</code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_new_api_types">New API Types</h2> |
| <div class="sectionbody"> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlight"><code>typedef cl_bitfield cl_mem_properties_intel;</code></pre> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_modifications_to_the_opencl_api_specification">Modifications to the OpenCL API Specification</h2> |
| <div class="sectionbody"> |
| <div class="dlist"> |
| <dl> |
| <dt class="hdlist1">(Add to Section 5.2.1, Creating Buffer Objects) </dt> |
| <dd> |
| <div class="openblock"> |
| <div class="content"> |
| <div class="paragraph"> |
| <p>A <strong>buffer object</strong> may also be created with additional properties using the function</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre>cl_mem clCreateBufferWithPropertiesINTEL( |
| cl_context context, |
| const cl_mem_properties_intel* properties, |
| cl_mem_flags flags, |
| size_t size, |
| void* host_ptr, |
| cl_int* errcode_ret);</pre> |
| </div> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><em>context</em> is a valid OpenCL context used to create the buffer object.</p> |
| </li> |
| <li> |
| <p><em>properties</em> is an optional list of properties for the buffer object and their corresponding values. |
| Each property name is immediately followed by the corresponding desired value. |
| The list is terminated with the special property <code>0</code>. |
| If no properties are required, properties may be <code>NULL</code>. |
| This extension does not define any optional properties for buffers.</p> |
| </li> |
| <li> |
| <p><em>flags</em> is a bit-field that is used to specify allocation and usage |
| information such as the memory arena that should be used to allocate the |
| buffer object and how it will be used. <em>Table 5.3</em> describes the possible values for <em>flags</em>.</p> |
| </li> |
| <li> |
| <p><em>size</em> is the size in bytes of the buffer memory object to be allocated.</p> |
| </li> |
| <li> |
| <p><em>host_ptr</em> is a pointer to the buffer data that may already be allocated by the application. |
| The size of the buffer that <em>host_ptr</em> points to must be greater than or equal to <em>size</em> bytes.</p> |
| </li> |
| <li> |
| <p><em>errcode_ret</em> may return an appropriate error code. |
| If <em>errcode_ret</em> is <code>NULL</code>, no error code is returned.</p> |
| </li> |
| </ul> |
| </div> |
| <div class="paragraph"> |
| <p><strong>clCreateBufferWithPropertiesINTEL</strong> returns a valid non-zero buffer object and <em>errcode_ret</em> is |
| set to <code>CL_SUCCESS</code> if the buffer object is created successfully. |
| Otherwise, it returns a <code>NULL</code> value with one of the following error values |
| returned in <em>errcode_ret</em>:</p> |
| </div> |
| <div class="ulist"> |
| <ul> |
| <li> |
| <p><code>CL_INVALID_CONTEXT</code> if <em>context</em> is not a valid context.</p> |
| </li> |
| <li> |
| <p><code>CL_INVALID_VALUE</code> if a property name in <em>properties</em> is not a |
| supported property name, if the value specified for a supported property |
| name is not valid, or if the same property name is specified more than |
| once.</p> |
| </li> |
| <li> |
| <p><code>CL_INVALID_VALUE</code> if values specified in <em>flags</em> are not valid as defined |
| in <em>table 5.3</em>.</p> |
| </li> |
| <li> |
| <p><code>CL_INVALID_BUFFER_SIZE</code> if <em>size</em> is 0.</p> |
| </li> |
| <li> |
| <p><code>CL_INVALID_HOST_PTR</code> if <em>host_ptr</em> is <code>NULL</code> and <code>CL_MEM_USE_HOST_PTR</code> or |
| <code>CL_MEM_COPY_HOST_PTR</code> are set in <em>flags</em> or if <em>host_ptr</em> is not <code>NULL</code> |
| but <code>CL_MEM_COPY_HOST_PTR</code> or <code>CL_MEM_USE_HOST_PTR</code> are not set in <em>flags</em>.</p> |
| </li> |
| <li> |
| <p><code>CL_MEM_OBJECT_ALLOCATION_FAILURE</code> if there is a failure to allocate |
| memory for buffer object.</p> |
| </li> |
| <li> |
| <p><code>CL_OUT_OF_RESOURCES</code> if there is a failure to allocate resources required |
| by the OpenCL implementation on the device.</p> |
| </li> |
| <li> |
| <p><code>CL_OUT_OF_HOST_MEMORY</code> if there is a failure to allocate resources |
| required by the OpenCL implementation on the host.</p> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </div> |
| </dd> |
| </dl> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_issues">Issues</h2> |
| <div class="sectionbody"> |
| <div class="paragraph"> |
| <p>None.</p> |
| </div> |
| </div> |
| </div> |
| <div class="sect1"> |
| <h2 id="_revision_history">Revision History</h2> |
| <div class="sectionbody"> |
| <table class="tableblock frame-all grid-rows spread"> |
| <colgroup> |
| <col style="width: 4.7619%;"> |
| <col style="width: 14.2857%;"> |
| <col style="width: 14.2857%;"> |
| <col style="width: 66.6667%;"> |
| </colgroup> |
| <thead> |
| <tr> |
| <th class="tableblock halign-left valign-top">Rev</th> |
| <th class="tableblock halign-left valign-top">Date</th> |
| <th class="tableblock halign-left valign-top">Author</th> |
| <th class="tableblock halign-left valign-top">Changes</th> |
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| <td class="tableblock halign-left valign-top"><p class="tableblock">1</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">2020-05-29</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock">Kris Kang</p></td> |
| <td class="tableblock halign-left valign-top"><p class="tableblock"><strong>Initial public release</strong></p></td> |
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| Last updated 2020-06-18 11:14:00 ADT |
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