Yes, but GL_UNSIGNED_CHAR doesn't exist.
so I don't know what to use...
2008/4/10, J.P. Delport <[EMAIL PROTECTED]>:
>
> Hi,
>
> sizeof(unsigned char) != sizeof(GL_UNSIGNED_SHORT)
>
> try GL_UNSIGNED_CHAR
>
> jp
>
>
> Vincent Bourdier wrote:
> > Hi All,
> >
> > I have a problem concerning writing image data.
> >
> > My code is simple :
> >
> > const long size = _x*_y*3;
> >
> > unsigned char* data = (unsigned char*)calloc(size,
> > sizeof(unsigned char));
> >
> > for(long i=0; i < size ; i+= 3)
> > {
> > data[i] = 0; //red
> > data[i+1] = 0; //green
> > data[i+2] = 0; //blue
> > }
> >
> > osg::ref_ptr<osg::Image> image = new osg::Image;
> > image->allocateImage(_x, _y, 1, GL_RGB, GL_UNSIGNED_SHORT);
> > image->setOrigin(osg::Image::BOTTOM_LEFT);//start counting
> > pixels on the Bottom left of the picture
> > image->setImage(_x, _y, 1, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT,
> > data, osg::Image::NO_DELETE);
> >
> > osgDB::writeImageFile(*image, "Z:/autres/Gradient.jpg");
> >
> >
> >
> > the result must be a black picture... but I've a totally different
> > result (see attached file)
> >
> > Does anyone see a mistake ?
> >
> > Thanks.
> >
> > Regards,
> > Vincent.
> >
>
> > ------------------------------------------------------------------------
> >
> >
> > ------------------------------------------------------------------------
> >
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> >
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