<div style="font-family: Arial; font-size: 14px;">That would be very valuable to have such guide.</div><div style="font-family: Arial; font-size: 14px;"><br></div><div style="font-family: Arial; font-size: 14px;">I am currently going further with OpenGL on macOS platform mainly, but I'll soon catch up on Ubuntu - and on Windows when I have migrated to JDK 19. When back on Ubuntu/Windows, I'll be happy to read this guide (and participate if this makes sense).</div><div style="font-family: Arial; font-size: 14px;"><br></div>
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<div style="font-family: Arial; font-size: 14px;"><br></div><div class="protonmail_quote">
------- Original Message -------<br>
Le mercredi 28 décembre 2022 à 23:02, Maurizio Cimadamore <maurizio.cimadamore@oracle.com> a écrit :<br><br>
<blockquote class="protonmail_quote" type="cite">
<p>We do not have concrete examples showing this yet - but, if
desirable, we can cook up something in that direction.</p>
<p>Maurizio<br>
</p>
<div class="moz-cite-prefix">On 28/12/2022 16:06, Martin Pernollet
wrote:<br>
</div>
<blockquote type="cite">
<div style="font-family: Arial; font-size: 14px;">Thank you for
these advices! I complemented my <a target="_blank" rel="noreferrer nofollow noopener" href="https://urldefense.com/v3/__https://github.com/jzy3d/panama-gl/issues/14__;!!ACWV5N9M2RV99hQ!N1IqZWbHmbyQKeD-bZ56aFuRVi5ggyH3P29fbW4qQWw5aUZA5FGUXzIA2_xKtJLsPq5eP2TSyTzgXDKBuZ0Um11CORVuaFUbcokSgQ$" title="last year notes">last year notes</a> on this topic with
your suggestions.</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">Do you have in
mind code samples </div>
<div style="font-family: Arial; font-size: 14px;">
<ul>
<li><span>demonstrating ways to reconcile such cases, </span></li>
<li><span>which could provide a larger view of the number of
specific cases one might encounter when building
multi-platform native projects?<br>
</span></li>
</ul>
</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div class="protonmail_quote"><br>
<blockquote class="protonmail_quote" type="cite">
<p><span style="font-size: 0.875rem;">Another approach that
might work would be to work at a lower level - and
generate ad-hoc downcall method handles which
automagically fix up mismatches that can arise across
platforms. Note that jextract should expose the method
handles it generates, so perhaps this adaptation can be
done semi-automatically based on what comes out of
jextract (and based on what the mismatches really are in
your use case).</span></p>
<p>I know that e.g. the JavaDoesUSB [1] project has faced
similar issues, so perhaps their authors might want to share
some insights here.</p>
<p>Cheers<br>
Maurizio<br>
<br>
[1] - <a href="https://urldefense.com/v3/__https://github.com/manuelbl/JavaDoesUSB__;!!ACWV5N9M2RV99hQ!N1IqZWbHmbyQKeD-bZ56aFuRVi5ggyH3P29fbW4qQWw5aUZA5FGUXzIA2_xKtJLsPq5eP2TSyTzgXDKBuZ0Um11CORVuaFXTRYCSxg$" class="moz-txt-link-freetext" rel="noreferrer nofollow noopener" target="_blank">https://github.com/manuelbl/JavaDoesUSB</a><br>
</p>
<div class="moz-cite-prefix">On 20/12/2022 15:04, Martin
Pernollet wrote:<br>
</div>
<blockquote type="cite">
<div style="font-family: Arial; font-size: 14px;">Hi
everyone,</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">I am back
on track with OpenGL binding with Panama!</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">I have one
code design / tooling question related to JExtract : is it
possible to <b>generate a common interface that would be
implemented by all platform specific binding</b>
generated by JExtract since JDK 19 or 20?</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">Here's my
use case in more detail : I've been advised to generate <b>different
binding for different OS</b> (and maybe version). For
OpenGL, this lead me to a glut_h binding for macOS, one
for Windows and one for Linux.</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">To let <b>the
user/developer face a single entry point</b>, I manually
write a <a title="GL interface" href="https://urldefense.com/v3/__https://github.com/jzy3d/panama-gl/blob/feature/fbo/src/main/java/opengl/GL.java__;!!ACWV5N9M2RV99hQ!N1IqZWbHmbyQKeD-bZ56aFuRVi5ggyH3P29fbW4qQWw5aUZA5FGUXzIA2_xKtJLsPq5eP2TSyTzgXDKBuZ0Um11CORVuaFXTDX0_Zw$" rel="noreferrer nofollow noopener" target="_blank">GL interface</a>.
I then define a <a title="GL_macOS_10_15_3" href="https://urldefense.com/v3/__https://github.com/jzy3d/panama-gl/blob/feature/fbo/src/main/java/opengl/macos/GL_macOS_10_15_3.java__;!!ACWV5N9M2RV99hQ!N1IqZWbHmbyQKeD-bZ56aFuRVi5ggyH3P29fbW4qQWw5aUZA5FGUXzIA2_xKtJLsPq5eP2TSyTzgXDKBuZ0Um11CORVuaFWtFaPP-w$" rel="noreferrer nofollow noopener" target="_blank">GL_macOS_10_15_3</a>
class that wraps the binding (!). When I expand the
prototype to Windows, I should copy paste this to
GL_Windows_10 and modify the imports to reference the
appropriate bindings. The goal is to write code like this</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">GL gl =
Platform.selectAmong(GL_macOS_10_15_3.class,
GL_windows_10.class, ...)</div>
<div style="font-family: Arial; font-size: 14px;">gl.glDoSomething()</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">I don't
think there would be another way to have java developer
write <b>applications that ignore the target hardware</b>.
However my approach is stupid : time consuming and error
prone because manual. A real life case may have 10
implementations and 1000 functions.</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;"><b>Does
JExtract provide a solution to this</b>? Should I create
this tool by myself based on all generated bindings ?
Would anyone <b>recommend something smarter</b>?</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">Regards,</div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
<div style="font-family: Arial; font-size: 14px;">Martin </div>
<div style="font-family: Arial; font-size: 14px;"><br>
</div>
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