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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Sean,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">It seems we used to support the GL extension, and there are some problem with the wiki I think.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Xiuli<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></a></p>
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<p class="MsoNormal"><a name="_____replyseparator"></a><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Song, Ruiling
<br>
<b>Sent:</b> Wednesday, March 30, 2016 10:29 AM<br>
<b>To:</b> Sean Lynch <seanl@literati.org>; Pan, Xiuli <xiuli.pan@intel.com><br>
<b>Cc:</b> beignet@lists.freedesktop.org<br>
<b>Subject:</b> RE: [Beignet] clCreateFromGLTexture working?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Beignet previously support a mesa version. But as mesa changes, things may not work correct now.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">So we disable the mesa extension in below commit.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">commit 47ebe2e96c777d9fd2ba07cef0e681eaff243fa1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Author: Zhigang Gong <<a href="mailto:zhigang.gong@intel.com">zhigang.gong@intel.com</a>><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Date: Fri Dec 5 10:19:21 2014 +0800<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> CL: Don't find mesa source code.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> As build with mesa has been broken for a long time, we<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> disable it to avoid potential build problem.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Signed-off-by: Zhigang Gong <<a href="mailto:zhigang.gong@intel.com">zhigang.gong@intel.com</a>><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.0pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Reviewed-by: "Yang, Rong R"
<a href="mailto:rong.r.yang@intel.com">rong.r.yang@intel.com</a><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.0pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The last workable mesa version was 10.1, which is very old.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">commit c2d2853c55d7ab12e422301d1c359b4f736b87d8<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Author: Abrahm Scully <<a href="mailto:abrahm.scully@gmail.com">abrahm.scully@gmail.com</a>><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Date: Wed Jun 18 22:28:08 2014 -0400<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Fix build with mesa 10.1.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Mesa renamed some constants and a directory.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Signed-off-by: Abrahm Scully <<a href="mailto:abrahm.scully@gmail.com">abrahm.scully@gmail.com</a>><o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:10.0pt"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Reviewed-by: Zhigang Gong
</span><a href="mailto:zhigang.gong@linux.intel.com"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">zhigang.gong@linux.intel.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">If you are interested, you can take a try to see whether the latest mesa is easy to support.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Ruiling<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Beignet [<a href="mailto:beignet-bounces@lists.freedesktop.org">mailto:beignet-bounces@lists.freedesktop.org</a>]
<b>On Behalf Of </b>Sean Lynch<br>
<b>Sent:</b> Tuesday, March 29, 2016 9:41 PM<br>
<b>To:</b> Pan, Xiuli <<a href="mailto:xiuli.pan@intel.com">xiuli.pan@intel.com</a>><br>
<b>Cc:</b> <a href="mailto:beignet@lists.freedesktop.org">beignet@lists.freedesktop.org</a><br>
<b>Subject:</b> Re: [Beignet] clCreateFromGLTexture working?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Thanks for the pointer to that file. That's helpful. I'm using ocl-icd to load Beignet, because the Beignet package on Arch requires "libcl" and assumes you will be using an ICD loader. If I try to use Beignet's libcl.so directly, PyOpenCL fails to load
with missing symbols for clCreateGLBuffer and friends. I think all the extension checking happens at compile time, not runtime, but with ocl-icd one would obviously need some runtime checking.<o:p></o:p></p>
<p>My goal is realtime raytracing, so having to copy back and forth to main memory is not an attractive option. Is there any other option available to me besides cl_khr_gl_sharing? I'd prefer not to have to use GLSL, but that's starting to look like my only
option. It may well be the better approach if I want any hope of having my code eventually run on Android anyway.<o:p></o:p></p>
<p>The docs claim clCreateFromGLTexture works[1], so they should probably be updated:<o:p></o:p></p>
<p>"Currently, the working APIs are clCreateFromGLTexture,clCreateFromGLTexture2D."<o:p></o:p></p>
<p>[1] <a href="https://www.freedesktop.org/wiki/Software/Beignet/">https://www.freedesktop.org/wiki/Software/Beignet/</a><o:p></o:p></p>
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<p class="MsoNormal">On Mar 28, 2016 23:28, "Pan, Xiuli" <<a href="mailto:xiuli.pan@intel.com">xiuli.pan@intel.com</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Sean,</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">It seems we do not support API clCreateFromGLTexture in beignet, you can get what api we support from
the file <a name="m_-188448345257385386__MailEndCompose">src/cl_khr_icd.c.</a></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">If PyOpenCL can run into this maybe there is something wrong with the device extension check either
for them or for beignet. I will recheck about this and give you a clear reply then.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Thanks</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Xiuli</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a name="m_-188448345257385386______replyseparato"></a><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
Beignet [mailto:<a href="mailto:beignet-bounces@lists.freedesktop.org" target="_blank">beignet-bounces@lists.freedesktop.org</a>]
<b>On Behalf Of </b>Sean Lynch<br>
<b>Sent:</b> Tuesday, March 29, 2016 2:15 PM<br>
<b>To:</b> <a href="mailto:beignet@lists.freedesktop.org" target="_blank">beignet@lists.freedesktop.org</a><br>
<b>Subject:</b> [Beignet] clCreateFromGLTexture working?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I'm getting a segfault with the following stack when trying to call clCreateFromGLTexture from PyOpenCL (which just got preliminary support for it):<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#0 0x0000000000000000 in ?? ()<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#1 0x00007f8b6af995bd in clCreateFromGLTexture () from /usr/lib/libOpenCL.so.1<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#2 0x00007f8b6b1f3a78 in create_from_gl_texture () from /home/seanl/project/voxel/pyenv/lib/python3.5/site-packages/pyopencl-2015.2.4-py3.5-linux-x86_64.egg/pyopencl/_<a href="http://cffi.cpython-35m-x86_64-linux-gnu.so" target="_blank">cffi.cpython-35m-x86_64-linux-gnu.so</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#3 0x00007f8b6b1cb10b in _cffi_f_create_from_gl_texture(_object*, _object*) () from /home/seanl/project/voxel/pyenv/lib/python3.5/site-packages/pyopencl-2015.2.4-py3.5-linux-x86_64.egg/pyopencl/_<a href="http://cffi.cpython-35m-x86_64-linux-gnu.so" target="_blank">cffi.cpython-35m-x86_64-linux-gnu.so</a><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#4 0x00007f8b75f755e9 in PyCFunction_Call () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#5 0x00007f8b75fed5f1 in PyEval_EvalFrameEx () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#6 0x00007f8b75fee9e2 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#7 0x00007f8b75feeac3 in PyEval_EvalCodeEx () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#8 0x00007f8b75f58b98 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#9 0x00007f8b75f2e0da in PyObject_Call () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#10 0x00007f8b75f44d64 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#11 0x00007f8b75f2e0da in PyObject_Call () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#12 0x00007f8b75f8aa10 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#13 0x00007f8b75f88de6 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#14 0x00007f8b75f2e0da in PyObject_Call () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#15 0x00007f8b75fe74bc in PyEval_EvalFrameEx () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#16 0x00007f8b75fed942 in PyEval_EvalFrameEx () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#17 0x00007f8b75fee9e2 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#18 0x00007f8b75feeac3 in PyEval_EvalCodeEx () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#19 0x00007f8b75feeaeb in PyEval_EvalCode () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#20 0x00007f8b7600dc64 in ?? () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#21 0x00007f8b76010175 in PyRun_FileExFlags () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#22 0x00007f8b760102e6 in PyRun_SimpleFileExFlags () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#23 0x00007f8b760270f4 in Py_Main () from /usr/lib/libpython3.5m.so.1.0<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">#24 0x0000000000400af7 in main ()<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Should this work with current Beignet master?<o:p></o:p></p>
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