Remove the deprecated ProgramBuilder class

[libs/gl.git] / source / texture3d.h

diff --git a/source/texture3d.h b/source/texture3d.h
index 15d244dec10f116eca42f8c53515e3994720e90a..1f50e056d8cb286d8e99b4c739f83e5f09c777bd 100644 (file)
--- a/source/texture3d.h
+++ b/source/texture3d.h
@@ -1,43 +1,94 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #ifndef MSP_GL_TEXTURE3D_H_
 #define MSP_GL_TEXTURE3D_H_
 
 #include <string>
-#include "datatype.h"
-#include "pixelformat.h"
 #include "texture.h"
 
 namespace Msp {
 namespace GL {
 
+/**
+Three-dimensional texture.  Consists of an array of texels in the shape of a
+right cuboid.  Texture coordinates have a principal range of [0, 1].
+*/
 class Texture3D: public Texture
 {
+public:
+       class Loader: public Msp::DataFile::DerivedObjectLoader<Texture3D, Texture::Loader>
+       {
+       public:
+               Loader(Texture3D &);
+               Loader(Texture3D &, Collection &);
+       private:
+               void init();
+
+               void raw_data(const std::string &);
+               void storage(PixelFormat, unsigned, unsigned, unsigned);
+               void storage_levels(PixelFormat, unsigned, unsigned, unsigned, unsigned);
+       };
+
 private:
-       PixelFormat ifmt;
        unsigned width;
        unsigned height;
        unsigned depth;
+       unsigned levels;
        unsigned allocated;
 
+protected:
+       Texture3D(GLenum);
 public:
        Texture3D();
-       void storage(PixelFormat, unsigned, unsigned, unsigned);
-       void allocate(unsigned);
-       void image(unsigned, PixelFormat, DataType, const void *);
-       void sub_image(unsigned, int, int, int, unsigned, unsigned, unsigned, PixelFormat, DataType, const void *);
-       void load_image(const std::string &fn, int dp = -1);
+
+       /** 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; }
-private:
-       void require_storage();
-       void get_level_size(unsigned, unsigned &, unsigned &, unsigned &);
+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() { }
 };
 
 } // namespace GL