- void storage(PixelFormat, sizei, sizei, sizei, int);
- void image(int, PixelFormat, GLenum, const void *);
- void sub_image(int, int, int, sizei, sizei, sizei, PixelFormat, GLenum, const void *);
- void load_image(const std::string &fn, int dp=-1);
- sizei get_width() const { return width; }
- sizei get_height() const { return height; }
- sizei get_depth() const { return depth; }
+
+ /** Defines storage structure for the texture. If lv is zero, the number
+ of mipmap levels is automatically determined from storage dimensions.
+
+ Must be called before an image can be uploaded. Once storage is defined,
+ it can't be changed. */
+ void storage(PixelFormat fmt, unsigned wd, unsigned ht, unsigned dp, unsigned lv = 0);
+
+ DEPRECATED void storage(PixelComponents c, unsigned w, unsigned h, unsigned d, unsigned l = 0)
+ { storage(make_pixelformat(c, UNSIGNED_BYTE), w, h, d, l); }
+
+ /** Allocates storage for the texture. The contents are initially
+ undefined. If storage has already been allocated, does nothing. */
+ void allocate(unsigned level);
+
+ /** Updates the contents of the entire texture. Storage must be defined
+ beforehand. The image data must have dimensions and format matching the
+ defined storage. */
+ void image(unsigned level, const void *data);
+
+ DEPRECATED void image(unsigned level, PixelComponents comp, DataType type, const void *data);
+
+ /** Updates a cuboid-shaped region of the texture. Storage must be defined
+ beforehand. The image data must be in a format mathing the defined storage
+ and the update region must be fully inside the texture. */
+ void sub_image(unsigned level, int x, int y, int z, unsigned wd, unsigned ht, unsigned dp, const void *data);
+
+ DEPRECATED void sub_image(unsigned level,
+ int x, int y, int z, unsigned wd, unsigned ht, unsigned dp,
+ PixelComponents comp, DataType type, const void *data);
+
+ /** Updates the contents of the entire texture from an image. If storage
+ has not been defined, it will be set to match the image. In this case the
+ image will be treated as a stack of square layers and its height must be
+ divisible by its width. Otherwise the image must match the defined
+ storage. */
+ virtual void image(const Graphics::Image &, unsigned = 0);
+
+ using Texture::image;
+
+ unsigned get_width() const { return width; }
+ unsigned get_height() const { return height; }
+ unsigned get_depth() const { return depth; }
+protected:
+ unsigned get_n_levels() const;
+ void get_level_size(unsigned, unsigned &, unsigned &, unsigned &) const;
+
+public:
+ virtual AsyncLoader *load(IO::Seekable &, const Resources * = 0) { return 0; }
+ virtual UInt64 get_data_size() const;
+ virtual void unload() { }