It looks better !
I didn't understood what the difference between the NO_DELETE,
USE_NEW_DELETE, ... but now I know how to use it.
I cannot make all my tests now, but for the moment It work better, without
error.
Thanks a lot for your help. :-)
Regard.
Vincent.
2008/4/11, Ralph Kern <[EMAIL PROTECTED]>:
>
> You mix up memory allocated with malloc/calloc/realloc and those with
> new / delete:
>
> the guilty lines are:
>
>
> > unsigned char* data = (unsigned char*)calloc(size,
> > sizeof(unsigned char));
>
>
> opposed to
>
>
> > image->setImage(_x, _y, 1, GL_RGB, GL_RGB, GL_UNSIGNED_BYTE,
> > data, osg::Image::USE_NEW_DELETE);
>
>
> Do you see USE_NEW_DELETE? it tells the image to do cleanup using
> delete [] data;
>
> You should allocate your data using
> unsigned char *data = new unsigned char[size];
>
> regards Ralph
>
> Vincent Bourdier schrieb:
>
> > Ok, this is the code, without all the pixel color computation :
> >
> > 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] = color; //red
> > data[i+1] = color; //green
> > data[i+2] = color; //blue
> > }
> >
> > osg::Image* image = new osg::Image;
> > image->allocateImage(_x, _y, 1, GL_RGB, GL_UNSIGNED_BYTE);
> > 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_BYTE,
> > data, osg::Image::USE_NEW_DELETE);
> >
> > osgDB::writeImageFile(*image, "Z:/autres/Gradient.jpg");
> >
> >
> > Thanks for help.
> >
>
>
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