Mipmap generation requires GL_SGIS_generate_mipmap

[libs/gl.git] / source / texture2d.h

diff --git a/source/texture2d.h b/source/texture2d.h
index f1b76783f7e5c5a242c96bb3528d7e7a8929ec40..5f4a7f9293e49f90781dbeaa50322cd6cc90747c 100644 (file)
--- a/source/texture2d.h
+++ b/source/texture2d.h
@@ -1,16 +1,9 @@
-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-

 #ifndef MSP_GL_TEXTURE2D_H_
 #define MSP_GL_TEXTURE2D_H_
 
 #include <string>
 #ifndef MSP_GL_TEXTURE2D_H_
 #define MSP_GL_TEXTURE2D_H_
 
 #include <string>

-#include <msp/datafile/loader.h>
-#include <msp/gbase/image.h>
+#include <msp/graphics/image.h>
+#include "datatype.h"

 #include "pixelformat.h"
 #include "texture.h"
 
 #include "pixelformat.h"
 #include "texture.h"
 


@@ -30,14 +23,15 @@ public:
        private:
                void image_data(const std::string &);
                void raw_data(const std::string &);
        private:
                void image_data(const std::string &);
                void raw_data(const std::string &);

-               void storage(PixelFormat, unsigned, unsigned, unsigned);
+               void storage(PixelFormat, unsigned, unsigned);
+               void storage_b(PixelFormat, unsigned, unsigned, unsigned);

        };
 
 private:
        PixelFormat ifmt;
        };
 
 private:
        PixelFormat ifmt;

-       sizei width;
-       sizei height;
-       int border;
+       unsigned width;
+       unsigned height;
+       unsigned allocated;

 
 public:
        Texture2D();
 
 public:
        Texture2D();


@@ -46,20 +40,22 @@ public:
        Defines the texture storage.  This function may only be successfully called
        once.
        */
        Defines the texture storage.  This function may only be successfully called
        once.
        */

-       void storage(PixelFormat fmt, sizei wd, sizei ht, int brd);
+       void storage(PixelFormat fmt, unsigned wd, unsigned ht);
+
+       /** Allocates texture storage.  If storage has already been allocated, this
+       function does nothing. */
+       void allocate(unsigned level);

        
        

-       /**
-       Uploads an image to the texture.  storage() must have been called prior to
+       /** Uploads an image to the texture.  storage() must have been called prior to

        this, and the image must have dimensions conforming to the specified
        this, and the image must have dimensions conforming to the specified

-       storage.
-       */
-       void image(int level, PixelFormat fmt, DataType type, const void *data);
+       storage.  For level>0, mipmapping rules apply to the image dimensions. */
+       void image(unsigned level, PixelFormat fmt, DataType type, const void *data);

 
        /**
        Uploads a sub-image into the texture.  Unlike full image upload, there are
        no constraints on the size of the sub-image.
        */
 
        /**
        Uploads a sub-image into the texture.  Unlike full image upload, there are
        no constraints on the size of the sub-image.
        */

-       void sub_image(int level, int x, int y, sizei wd, sizei ht, PixelFormat fmt, DataType type, const void *data);
+       void sub_image(unsigned level, int x, int y, unsigned wd, unsigned ht, PixelFormat fmt, DataType type, const void *data);

 
        /**
        Loads an image from a file and uploads it to the texture.  If storage() has
 
        /**
        Loads an image from a file and uploads it to the texture.  If storage() has


@@ -67,11 +63,12 @@ public:
        */
        void load_image(const std::string &fn);
 
        */
        void load_image(const std::string &fn);
 

-       sizei get_width() const  { return width; }
-       sizei get_height() const { return height; }
+       unsigned get_width() const  { return width; }
+       unsigned get_height() const { return height; }

 
 private:
        void image(const Graphics::Image &);
 
 private:
        void image(const Graphics::Image &);

+       void get_level_size(unsigned, unsigned &, unsigned &);

 };
 
 } // namespace GL
 };
 
 } // namespace GL