X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexturecube.h;h=0882a5e31004c3cef3e129b65ff24a2671e88fc0;hp=f65ec0592a4358b1816a59090b68f224f0c7ad78;hb=81e0e39fefd8f50ae2367fe821d58af6273bcea2;hpb=f35535633aab06e80f0666d8551431364654c6dc

diff --git a/source/texturecube.h b/source/texturecube.h
index f65ec059..0882a5e3 100644
--- a/source/texturecube.h
+++ b/source/texturecube.h
@@ -1,10 +1,10 @@
 #ifndef MSP_GL_TEXTURECUBE_H_
 #define MSP_GL_TEXTURECUBE_H_
 
+#include <msp/gl/extensions/arb_texture_cube_map.h>
 #include <msp/graphics/image.h>
 #include "texture.h"
 #include "vector.h"
-#include <msp/gl/extensions/arb_texture_cube_map.h>
 
 namespace Msp {
 namespace GL {
@@ -42,24 +42,30 @@ public:
 	private:
 		void init();
 
+		void external_image(TextureCubeFace, const std::string &);
 		void image_data(TextureCubeFace, const std::string &);
 		void raw_data(TextureCubeFace, const std::string &);
 		void storage(PixelFormat, unsigned);
 	};
 
 private:
-	PixelFormat ifmt;
 	unsigned size;
+	unsigned levels;
 	unsigned allocated;
 
+	static TextureCubeFace face_order[6];
 	static Vector3 directions[6];
+	static unsigned orientations[12];
 
 public:
 	TextureCube();
 
-	/** Defines storage structure for the texture.  Must be called before an
-	image can be uploaded.  Once storage is defined, it can't be changed. */
-	void storage(PixelFormat fmt, unsigned size);
+	/** 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 size, unsigned lv = 0);
 
 	/** Allocates storage for the cube faces.  The contents are initially
 	undefined.  If storage has already been allocated, does nothing. */
@@ -80,15 +86,20 @@ public:
 
 	void image(TextureCubeFace, const Graphics::Image &, bool = false);
 
+	virtual void image(const Graphics::Image &, bool = false);
+
 	unsigned get_size() const { return size; }
 private:
-	unsigned get_level_size(unsigned);
+	unsigned get_n_levels() const;
+	unsigned get_level_size(unsigned) const;
 
 public:
 	/** Translates indices into face constants.  Valid indices are between 0
 	and 5, inclusive. */
 	static TextureCubeFace enumerate_faces(unsigned);
 
+	static unsigned get_face_index(TextureCubeFace);
+
 	/** Returns a vector pointing out of the face. */
 	static const Vector3 &get_face_direction(TextureCubeFace);