X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftexture2d.h;h=30eab26c47d648cd91bbc6ec7aab4c542ec7322e;hb=d1800d7ea80290f4913d0203241cef1409656522;hp=e06ea920a1aff896f7c1c50ed1f87fac75e7b007;hpb=f098a871fc6dc7b61a5aca5581fa327e4124c036;p=libs%2Fgl.git

diff --git a/source/texture2d.h b/source/texture2d.h
index e06ea920..30eab26c 100644
--- a/source/texture2d.h
+++ b/source/texture2d.h
@@ -9,23 +9,70 @@ Distributed under the LGPL
 #define MSP_GL_TEXTURE2D_H_
 
 #include <string>
+#include <msp/datafile/loader.h>
+#include "pixelformat.h"
 #include "texture.h"
 
 namespace Msp {
 namespace GL {
 
+class Image;
+
+/**
+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 &);
-	sizei get_width() const  { return width_; }
-	sizei get_height() const { return height_; }
+
+	/**
+	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, GLenum 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, GLenum 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:
-	sizei width_;
-	sizei height_;
+	void image(const Image &);
 };
 
 } // namespace GL