Method GetNumSubresources

GTE/Graphics/Texture.h:117–120

Subresource indexing: index = numLevels*item + level

        // Subresource indexing:  index = numLevels*item + level
        inline uint32_t GetNumSubresources() const
        {
            return mNumItems * mNumLevels;
        }

        uint32_t GetIndex(uint32_t item, uint32_t level) const;