[osg-users] image is not being freed

Sebastian Messerschmidt sebastian.messerschmidt at gmx.de
Tue Apr 12 23:21:31 PDT 2016


Hi Bruno,
> Hello,
>
> I am creating an image from custom data pointer as follows, however, 
> this does not result in freeing my memory after I delete the node and 
> texture. How could this be?
>
> image->setImage(src->tileSize(), src->tileSize(),1,
>                             GL_RGBA8,
>                             GL_RGBA,
>                             GL_UNSIGNED_INT_8_8_8_8_REV,
>                             src->tileGridCoords(col, row).m_data.data(),
>                             osg::Image::NO_DELETE);
You are telling OSG that you handle the memory yourself by stating 
NO_DELETE.
So basically you're responsible to delete it.

Cheers
Sebastian
>
>             // Setup texture
>             osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
>             texture->setImage(image.get());
>
>             // Avoid background border between tiles
>             // 
> http://stackoverflow.com/questions/19611745/opengl-black-lines-in-between-tiles
>             texture->setWrap(osg::Texture::WRAP_S, 
> osg::Texture::CLAMP_TO_EDGE);
>             texture->setWrap(osg::Texture::WRAP_T, 
> osg::Texture::CLAMP_TO_EDGE);
>
> texture->setInternalFormatMode(osg::Texture2D::USE_S3TC_DXT1_COMPRESSION);
>             texture->setUnRefImageDataAfterApply(
>
>
>
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