<div dir="ltr"><div>Hi,</div><div><br></div><div>So based on that RFC it is a breaking change when reading signed images. I confess that this type of silent behavor change scares me.<br></div><div><br></div><div>Why dont make this an opt-in behavior instead of just breaking application code silently? Otherwise, I would rather have GDT_Byte removed so that application code would not compile against new versions of GDAL. At least that makes migration to new versions less risky.<br></div><div><br></div><div>Best,</div><div><br></div><div>hermann<br></div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><br></div><div>----------------------------------------------------------------------<br>Hermann Rodrigues<br><a href="mailto:hermann.rodrigues@gmail.com" target="_blank">hermann.rodrigues@gmail.com</a><br><a href="mailto:hermann@csr.ufmg.br" target="_blank">hermann@csr.ufmg.br</a><br><span style="font-size:12.8px">Twitter: @horodrigues | @dinamica_ego</span></div><div></div><div>Centro de Sensoriamento Remoto / UFMG<br><a href="https://csr.ufmg.br" target="_blank">https://csr.ufmg.br</a> | <a href="https://dinamicaego.com" target="_blank">https://dinamicaego.com</a></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Nov 16, 2022 at 11:38 AM Even Rouault <<a href="mailto:even.rouault@spatialys.com">even.rouault@spatialys.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p><br>
</p>
<div>Le 16/11/2022 à 17:32, Hermann
Rodrigues a écrit :<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi,</div>
<div><br>
</div>
<div>I am a bit late for this discussion, but can someone please
clarify if this is a breaking change? Is this keeping the old
behavior in place when reading GDT_Byte or replacing it
completely when reading rasters storing 8-bit pixels? <br>
</div>
</div>
</blockquote>
<p>This doesn't affect GDT_Byte rasters that were really unsigned
8-bit pixels.</p>
<p>For signed 8-bit pixels,
<a href="https://gdal.org/development/rfc/rfc87_signed_int8.html#backward-compatibility" target="_blank">https://gdal.org/development/rfc/rfc87_signed_int8.html#backward-compatibility</a>
should answer your question<br>
</p>
<blockquote type="cite">
<div dir="ltr">
<div><br>
</div>
Best,
<div><br>
</div>
<div>hermann<br>
</div>
<div><br>
</div>
<div>
<div>
<div dir="ltr">
<div dir="ltr">
<div>----------------------------------------------------------------------<br>
Hermann Rodrigues<br>
<a href="mailto:hermann.rodrigues@gmail.com" target="_blank">hermann.rodrigues@gmail.com</a><br>
<a href="mailto:hermann@csr.ufmg.br" target="_blank">hermann@csr.ufmg.br</a><br>
<span style="font-size:12.8px">Twitter: @horodrigues |
@dinamica_ego</span></div>
<div>Centro de Sensoriamento Remoto / UFMG<br>
<a href="https://csr.ufmg.br" target="_blank">https://csr.ufmg.br</a>
| <a href="https://dinamicaego.com" target="_blank">https://dinamicaego.com</a></div>
</div>
</div>
</div>
<br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, Nov 16, 2022 at 8:04
AM Even Rouault <<a href="mailto:even.rouault@spatialys.com" target="_blank">even.rouault@spatialys.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I
declare this motion passed with +1 from PSC members KurtS,
JukkaR, <br>
MateuszL and me.<br>
<br>
Even<br>
<br>
Le 14/11/2022 à 13:22, Even Rouault a écrit :<br>
> Hi,<br>
><br>
> I feel the discussion phase has finished. There were a
few questions <br>
> about the existing GDT_Byte unsigned 8-bit integer type,
if it should <br>
> be renamed/aliased/etc, but no obvious conclusion emerged
from this, <br>
> and I'd suggest we keep with the status-quo with
GDT_Byte, and the RFC <br>
> remains on just adding GDT_Int8 for signed 8-bit integer.<br>
><br>
> Motion:<br>
><br>
> Adopt RFC 87: Signed int8 data type for raster <br>
> (<a href="https://github.com/OSGeo/gdal/pull/6634" rel="noreferrer" target="_blank">https://github.com/OSGeo/gdal/pull/6634</a>)<br>
><br>
> Starting with my +1,<br>
><br>
> Even<br>
><br>
-- <br>
<a href="http://www.spatialys.com" rel="noreferrer" target="_blank">http://www.spatialys.com</a><br>
My software is free, but my time generally not.<br>
<br>
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</blockquote>
</div>
</blockquote>
<pre cols="72">--
<a href="http://www.spatialys.com" target="_blank">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
</div>
</blockquote></div>