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: // GLUT frontend
nuclear@0: #ifdef USE_GLUT
nuclear@0: 
nuclear@0: #include <stdlib.h>
nuclear@0: #include "opengl.h"
nuclear@0: 
nuclear@0: #ifdef __APPLE__
nuclear@0: #include <GLUT/glut.h>
nuclear@0: #else
nuclear@0: #include <GL/glut.h>
nuclear@0: #endif
nuclear@0: 
nuclear@11: #include "viewer.h"
nuclear@3: #include "opt.h"
nuclear@0: 
nuclear@0: static void display();
nuclear@0: static void reshape(int x, int y);
nuclear@0: static void key_down(unsigned char key, int x, int y);
nuclear@0: static void key_up(unsigned char key, int x, int y);
nuclear@0: static void mouse(int bn, int state, int x, int y);
nuclear@0: static void motion(int x, int y);
nuclear@0: 
nuclear@4: static int win_width, win_height;
nuclear@7: static unsigned int mod;
nuclear@4: 
nuclear@0: int main(int argc, char **argv)
nuclear@0: {
nuclear@0: 	glutInit(&argc, argv);
nuclear@3: 
nuclear@3: 	if(parse_args(argc, argv) == -1) {
nuclear@3: 		return 1;
nuclear@3: 	}
nuclear@3: 
nuclear@6: 	glutInitWindowSize(opt.xsz, opt.ysz);
nuclear@0: 	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
nuclear@0: 	glutCreateWindow("dicom viewer");
nuclear@0: 
nuclear@0: 	glutDisplayFunc(display);
nuclear@0: 	glutReshapeFunc(reshape);
nuclear@1: 	glutKeyboardFunc(key_down);
nuclear@1: 	glutKeyboardUpFunc(key_up);
nuclear@0: 	glutMouseFunc(mouse);
nuclear@0: 	glutMotionFunc(motion);
nuclear@7: 	glutPassiveMotionFunc(motion);
nuclear@0: 
nuclear@0: 	glewInit();
nuclear@0: 
nuclear@0: 	if(init() == -1) {
nuclear@0: 		return 1;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	glutMainLoop();
nuclear@0: 	return 0;
nuclear@0: }
nuclear@0: 
nuclear@0: void swap_buffers()
nuclear@0: {
nuclear@0: 	glutSwapBuffers();
nuclear@0: }
nuclear@0: 
nuclear@0: void redisplay()
nuclear@0: {
nuclear@0: 	glutPostRedisplay();
nuclear@0: }
nuclear@0: 
nuclear@0: void quit()
nuclear@0: {
nuclear@0: 	cleanup();
nuclear@0: 	exit(0);
nuclear@0: }
nuclear@0: 
nuclear@4: void get_window_size(int *xsz, int *ysz)
nuclear@4: {
nuclear@4: 	*xsz = win_width;
nuclear@4: 	*ysz = win_height;
nuclear@4: }
nuclear@4: 
nuclear@7: unsigned int get_modifiers()
nuclear@7: {
nuclear@7: 	return mod;
nuclear@7: }
nuclear@7: 
nuclear@0: static void display()
nuclear@0: {
nuclear@0: 	ev_display();
nuclear@0: }
nuclear@0: 
nuclear@0: static void reshape(int x, int y)
nuclear@0: {
nuclear@4: 	win_width = x;
nuclear@4: 	win_height = y;
nuclear@0: 	ev_reshape(x, y);
nuclear@0: }
nuclear@0: 
nuclear@0: static void key_down(unsigned char key, int x, int y)
nuclear@0: {
nuclear@7: 	mod = glutGetModifiers();
nuclear@8: 
nuclear@8: 	switch(key) {
nuclear@8: 	case 'i':
nuclear@8: 		{
nuclear@8: 			static bool fullrate;
nuclear@8: 			fullrate = !fullrate;
nuclear@8: 			glutIdleFunc(fullrate ? glutPostRedisplay : 0);
nuclear@8: 		}
nuclear@8: 		break;
nuclear@8: 	}
nuclear@8: 
nuclear@0: 	ev_keyboard(key, 1, x, y);
nuclear@0: }
nuclear@0: 
nuclear@0: static void key_up(unsigned char key, int x, int y)
nuclear@0: {
nuclear@7: 	mod = glutGetModifiers();
nuclear@0: 	ev_keyboard(key, 0, x, y);
nuclear@0: }
nuclear@0: 
nuclear@0: static void mouse(int bn, int state, int x, int y)
nuclear@0: {
nuclear@7: 	mod = glutGetModifiers();
nuclear@0: 	ev_mouse_button(bn - GLUT_LEFT_BUTTON, state == GLUT_DOWN ? 1 : 0, x, y);
nuclear@0: }
nuclear@0: 
nuclear@0: static void motion(int x, int y)
nuclear@0: {
nuclear@0: 	ev_mouse_motion(x, y);
nuclear@0: }
nuclear@0: 
nuclear@0: #endif	// USE_GLUT