/home/ramiro/Imagens/0.pgm : 536468780 x 20, 1 channel, uint8 pnm
channel list: I
pnm:binary: 1
oiio:BitsPerSample: 8
2013/9/9 Larry Gritz <[email protected]>
> If you do this:
>
> iinfo -v myfile.pgm # or whatever the name of your file actually is
>
> what does it say?
>
>
> On Sep 9, 2013, at 8:16 AM, Ramiro Pereira de Magalhães wrote:
>
> > Hi,
> >
> > I have just learned about OIIO and I wrote a simple program with
> OpenImageIO to load a 10GB PGM file into memory. To try things out I wrote
> a simple program to load a 10GB PGM (yeah, PGM) file into memory. Sadly,
> the program crashes prior to completing its task with a Segmentation Fault.
> The machine where this is running has 64GB RAM, most of it free. Can anyone
> help me figure out this issue?
> >
> > Bellow is the program I wrote. It is pretty simple: load the image given
> as argument to it into a buffer, then close the file, clean the buffers and
> leave.
> >
> > ================CODE================
> > #include <iostream>
> > #include <string>
> > #include <sstream>
> > #include <OpenImageIO/imageio.h>
> >
> > OIIO_NAMESPACE_USING
> >
> > int main(int argc, char* args[])
> > {
> > if (argc != 2)
> > {
> > return 1;
> > }
> > const std::string filePath = args[1];
> >
> > ImageInput *in = ImageInput::open (filePath);
> > const ImageSpec & spec = in->spec();
> > const int size = spec.width * spec.height;
> >
> > unsigned char * pixels = new unsigned char[size];
> > in->read_image(TypeDesc::UCHAR, pixels);
> > std::cout << "Done reading." << std::endl;
> > in->close();
> > std::cout << "Closed file." << std::endl;
> >
> > delete in;
> > delete pixels;
> >
> > std::cout << "Outta here." << std::endl;
> > return 0;
> > }
> > ================CODE================
> >
> >
> > Segfault happens at line 173 of onminput.cpp. Here is the call stack
> given by Qt Builder:
> >
> > 0 OpenImageIO::v1_3::raw_to_raw<unsigned char> pnminput.cpp 173
> 0x7ffff798c1e6
> > 1 OpenImageIO::v1_3::PNMInput::read_file_scanline pnminput.cpp
> 272 0x7ffff798b09c
> > 2 OpenImageIO::v1_3::PNMInput::read_native_scanline pnminput.cpp
> 385 0x7ffff798b91e
> > 3 OpenImageIO::v1_3::ImageInput::read_native_scanlines
> imageinput.cpp 260 0x7ffff76d9280
> > 4 OpenImageIO::v1_3::ImageInput::read_scanlines imageinput.cpp
> 197 0x7ffff76d8c24
> > 5 OpenImageIO::v1_3::ImageInput::read_scanlines imageinput.cpp
> 165 0x7ffff76d8977
> > 6 OpenImageIO::v1_3::ImageInput::read_image imageinput.cpp 631
> 0x7ffff76db3c8
> > 7 main show.cpp 31 0x4012b7
> >
> >
> > I compiled OIIO from the git commit
> d64b9ac8a63261040ae0263b0709924d8fecf4df (Tue Sep 3 12:53:12 2013 -0700).
> >
> > I appreciate any help.
> > _______________________________________________
> > Oiio-dev mailing list
> > [email protected]
> > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>
> --
> Larry Gritz
> [email protected]
>
>
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>
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