We don't support DDS for output, it's true.
I don't see that error message anywhere in the source code (either at the
current head, or at v2.3.16.0), so I'm not sure where that's coming from. I can
believe it was there at some point. Is that a message from the much older OIIO
version you are converting FROM?
As far as the input, that call should work. What is the value of inputFile?
ImageInput::open() returns an open II, but ImageInput::create just creates an
II capable of being opened for that format -- i.e., it doesn't try to open the
file. So I'm curious as to what could be broken, unless your OIIO is built with
support for DDS disabled?
After the failed
OIIO::ImageInput::unique_ptr in = OIIO::ImageInput::create(inputFile);
what happens with this:
if (! in) {
std::string err = OIIO::geterror();
std::cout << "err after ImageInput::create(" << inputFile << ")
failure was: " << err << "\n";
}
Is that where you're seeing the message about Leszek? Or do you see a different
error message?
> On Nov 16, 2022, at 5:29 PM, Alex Suter <[email protected]> wrote:
>
> Heya,
>
> Judging by the docs this isn't a preferred format, so I apologize.
>
> I'm upgrading some code from an older OIIO to 2.3.16 and the unit test that
> reads in some example dds files is failing as:
>
> OIIO::ImageInput::unique_ptr in = OIIO::ImageInput::create(inputFile);
>
> seems to return a nullptr. Other formats read fine. Looking at the header
> ImageInput::create reports that it will return an empty pointer if the
> required writer was not able to be created which might be what's happening.
>
> ddsoutput code says, "DDS writing is not supported yet, please poke Leszek in
> the mailing list."
>
> I don't actually need DDS writing, but am I doing something wrong in the
> create() call so as to get the nullptr in recent versions of OIIO? Or is
> reading dds through the create interface ddeprecated and there's a better way?
>
> Thanks,
> Alex
>
> --
> |o| Alex Suter |o| R&D SF |o|
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> Oiio-dev mailing list
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--
Larry Gritz
[email protected]
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