+/* $Id$
+
+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>
+#include <msp/datafile/loader.h>
+#include <msp/gbase/image.h>
+#include "pixelformat.h"
#include "texture.h"
namespace Msp {
namespace GL {
+/**
+Two-dimensional texture class. This is the most common type of texture.
+*/
class Texture2D: public Texture
{
+public:
+ class Loader: public Texture::Loader
+ {
+ public:
+ Loader(Texture2D &);
+ private:
+ void image_data(const std::string &);
+ void raw_data(const std::string &);
+ void storage(PixelFormat, unsigned, unsigned, unsigned);
+ };
+
+private:
+ PixelFormat ifmt;
+ sizei width;
+ sizei height;
+ int border;
+
public:
Texture2D();
- void image(int, int, sizei, sizei, int, GLenum, GLenum, void *);
- void image(int, sizei, sizei, TextureFormat, void *);
- void image(const std::string &);
+
+ /**
+ Defines the texture storage. This function may only be successfully called
+ once.
+ */
+ void storage(PixelFormat fmt, sizei wd, sizei ht, int brd);
+
+ /**
+ Uploads an image to the texture. storage() must have been called prior to
+ this, and the image must have dimensions conforming to the specified
+ storage.
+ */
+ void image(int 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.
+ */
+ void sub_image(int level, int x, int y, sizei wd, sizei ht, PixelFormat fmt, DataType type, const void *data);
+
+ /**
+ Loads an image from a file and uploads it to the texture. If storage() has
+ not been called, the storage format will be set to match the loaded image.
+ */
+ void load_image(const std::string &fn);
+
+ sizei get_width() const { return width; }
+ sizei get_height() const { return height; }
+
private:
+ void image(const Graphics::Image &);
};
} // namespace GL