nuclear@12: /*
nuclear@12: glviewvol is an OpenGL 3D volume data viewer
nuclear@12: Copyright (C) 2014  John Tsiombikas <nuclear@member.fsf.org>
nuclear@12: 
nuclear@12: This program is free software: you can redistribute it and/or modify
nuclear@12: it under the terms of the GNU General Public License as published by
nuclear@12: the Free Software Foundation, either version 3 of the License, or
nuclear@12: (at your option) any later version.
nuclear@12: 
nuclear@12: This program is distributed in the hope that it will be useful,
nuclear@12: but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nuclear@12: GNU General Public License for more details.
nuclear@12: 
nuclear@12: You should have received a copy of the GNU General Public License
nuclear@12: along with this program.  If not, see <http://www.gnu.org/licenses/>.
nuclear@12: */
nuclear@0: #ifndef RENDERER_H_
nuclear@0: #define RENDERER_H_
nuclear@0: 
nuclear@0: #include "volume.h"
nuclear@6: #include "xfermap.h"
nuclear@4: 
nuclear@4: #define MAX_CLIP_PLANES		4
nuclear@0: 
nuclear@0: class Renderer {
nuclear@0: protected:
nuclear@0: 	int view_width, view_height;
nuclear@0: 	Volume *vol;
nuclear@0: 
nuclear@4: 	float clip_plane[MAX_CLIP_PLANES][4];	// nx,ny,nz,dist
nuclear@4: 
nuclear@6: 	TransferFunc *xfer;
nuclear@10: 	float zscale;
nuclear@4: 
nuclear@0: public:
nuclear@0: 	Renderer();
nuclear@0: 	virtual ~Renderer();
nuclear@0: 
nuclear@0: 	virtual bool init();
nuclear@0: 	virtual void destroy();
nuclear@0: 
nuclear@0: 	virtual void set_volume(Volume *vol);
nuclear@0: 	virtual Volume *get_volume() const;
nuclear@0: 
nuclear@10: 	virtual void set_zscale(float zs);
nuclear@10: 	virtual float get_zscale() const;
nuclear@10: 
nuclear@6: 	virtual void set_transfer_function(TransferFunc *xfer);
nuclear@6: 	virtual TransferFunc *get_transfer_function() const;
nuclear@5: 
nuclear@4: 	virtual void set_clipping_plane(int idx, float nx, float ny, float nz, float dist);
nuclear@4: 	virtual void disable_clipping_plane(int idx);
nuclear@4: 
nuclear@0: 	virtual void reshape(int x, int y);
nuclear@0: 
nuclear@0: 	virtual void update(unsigned int msec);
nuclear@0: 	virtual void render() const = 0;
nuclear@0: };
nuclear@0: 
nuclear@0: #endif	// RENDERER_H_