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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