nuclear@2: /*
nuclear@2: Stereoscopic tunnel for iOS.
nuclear@2: Copyright (C) 2011  John Tsiombikas <nuclear@member.fsf.org>
nuclear@2: 
nuclear@2: This program is free software: you can redistribute it and/or modify
nuclear@2: it under the terms of the GNU General Public License as published by
nuclear@2: the Free Software Foundation, either version 3 of the License, or
nuclear@2: (at your option) any later version.
nuclear@2: 
nuclear@2: This program is distributed in the hope that it will be useful,
nuclear@2: but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@2: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nuclear@2: GNU General Public License for more details.
nuclear@2: 
nuclear@2: You should have received a copy of the GNU General Public License
nuclear@2: along with this program.  If not, see <http://www.gnu.org/licenses/>.
nuclear@2: */
nuclear@2: 
nuclear@2: #ifndef CAM_H_
nuclear@2: #define CAM_H_
nuclear@2: 
nuclear@2: enum {
nuclear@2: 	CAM_CENTER,
nuclear@2: 	CAM_LEFT,
nuclear@2: 	CAM_RIGHT
nuclear@2: };
nuclear@2: 
nuclear@2: /* reset to the initial state */
nuclear@2: void cam_reset(void);			/* all */
nuclear@2: void cam_reset_view(void);		/* view parameters */
nuclear@2: void cam_reset_proj(void);		/* projection parameters */
nuclear@2: void cam_reset_stereo(void);	/* stereo parameters */
nuclear@2: 
nuclear@2: /* camera viewing parameters */
nuclear@2: void cam_pan(int dx, int dy);		/* pan across X/Z plane */
nuclear@2: void cam_height(int dh);			/* move verticaly */
nuclear@2: void cam_rotate(int dx, int dy);	/* rotate around local Y and X axis */
nuclear@2: void cam_zoom(int dz);				/* dolly the camera fwd/back */
nuclear@2: 
nuclear@2: /* camera projection parameters */
nuclear@2: void cam_clip(float n, float f);	/* set clipping planes */
nuclear@2: void cam_fov(float f);				/* vertical field of view in degrees */
nuclear@2: void cam_aspect(float a);			/* aspect ratio (width / height) */
nuclear@2: 
nuclear@2: /* stereo parameters */
nuclear@2: void cam_separation(float s);
nuclear@2: void cam_focus_dist(float d);
nuclear@2: 
nuclear@2: /* multiply the camera view matrix on top of the current matrix stack
nuclear@2:  * (which should be GL_MODELVIEW)
nuclear@2:  */
nuclear@2: void cam_view_matrix(void);
nuclear@2: void cam_stereo_view_matrix(int eye);
nuclear@2: 
nuclear@2: /* multiply the camera projection matrix on top of the current matrix stack
nuclear@2:  * (which should be GL_PROJECTION)
nuclear@2:  */
nuclear@2: void cam_proj_matrix(void);
nuclear@2: void cam_stereo_proj_matrix(int eye);
nuclear@2: 
nuclear@2: #endif	/* CAM_H_ */