unsigned levels = static_cast<const TextureCube *>(this)->levels;
if(!id)
- generate_id();
+ create();
GLenum gl_fmt = get_gl_pixelformat(storage_fmt);
if(ARB_texture_storage)
}
}
+size_t OpenGLTextureCube::get_data_size() const
+{
+ if(!id)
+ return 0;
+
+ unsigned size = static_cast<const TextureCube *>(this)->size;
+ unsigned levels = static_cast<const TextureCube *>(this)->levels;
+
+ size_t level_size = size*size*get_pixel_size(storage_fmt);
+ size_t total_size = level_size;
+ for(unsigned i=0; i<levels; ++i, level_size>>=2)
+ total_size += level_size;
+ return total_size;
+}
+
+
unsigned get_gl_cube_face(unsigned face)
{
switch(static_cast<TextureCubeFace>(face))