/** Allocates storage for the texture. The contents are initially
undefined. If storage has already been allocated, does nothing. */
void allocate(unsigned level);
/** Allocates storage for the texture. The contents are initially
undefined. If storage has already been allocated, does nothing. */
void allocate(unsigned level);
/** Uploads an image to the texture. Storage must be defined beforehand.
The image data must have dimensions and format compatible with the defined
storage. */
/** Uploads an image to the texture. Storage must be defined beforehand.
The image data must have dimensions and format compatible with the defined
storage. */
unsigned get_depth() const { return depth; }
private:
void get_level_size(unsigned, unsigned &, unsigned &, unsigned &);
unsigned get_depth() const { return depth; }
private:
void get_level_size(unsigned, unsigned &, unsigned &, unsigned &);