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/**
* \defgroup unixsimulator Simulation of the Borg API for UNIX like platforms.
*/
/*@{*/
/**
* @file main.c
* @brief Simulator for Unix like platforms.
* @author Martin Ongsiek, Peter Fuhrmann, Christian Kroll
*/
#ifdef OSX_
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#include <pthread.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdio.h>
#include <setjmp.h>
#include "../config.h"
#include "../display_loop.h"
#include "trackball.h"
/** Number of bytes per row. */
#define LINEBYTES (((NUM_COLS - 1) / 8) + 1)
/** Fake port for simulating joystick input. */
volatile unsigned char fakeport;
/** Flag which indicates if wait should jump to the menu if fire is pressed. */
volatile unsigned char waitForFire;
/** The simulated frame buffer of the borg. */
volatile unsigned char pixmap[NUMPLANE][NUM_ROWS][LINEBYTES];
/** Jump buffer which leads directly the menu. */
extern jmp_buf newmode_jmpbuf;
/** Width of the window. */
int WindWidth;
/** Height of the window. */
int WindHeight;
/** Rotation of the x-axis of the scene. */
float view_rotx = 0;
/** Rotation of the y-axis of the scene. */
float view_roty = 0;
/** Rotation of the z-axis of the scene. */
float view_rotz = 0;
/** GLUT window handle. */
int win;
/**
* Simple wait function.
* @param ms The requested delay in milliseconds.
*/
void wait(unsigned int ms) {
if (waitForFire) {
if (fakeport & 0x01) {
longjmp(newmode_jmpbuf, 43);
}
}
usleep(ms * 1000);
}
/**
* Draw a LED in the given color (which is a list).
* @param color List which contains a sphere.
* @param pos_x x-coordinate
* @param pos_y y-coordinate
* @param pos_z z-coordinate
*/
void drawLED(int color, float pos_x, float pos_y, float pos_z) {
glPushMatrix();
glTranslatef(pos_x, pos_y, pos_z);
glCallList(color);
glPopMatrix();
}
/**
* Draws the LED matrix.
*/
void display(void) {
int x, y, z, level, color;
tbReshape(WindWidth, WindHeight);
glClear(GL_COLOR_BUFFER_BIT);
glPushMatrix();
glTranslatef(NUM_COLS * 2., 0., NUM_ROWS * 2.);
tbMatrix();
glRotatef(view_rotx, 1.0, 0.0, 0.0);
glRotatef(view_roty, 0.0, 1.0, 0.0);
glRotatef(view_rotz, 0.0, 0.0, 1.0);
glTranslatef(-NUM_COLS * 2, 0., -NUM_ROWS * 2.);
for (x = 0; x < 1; x++) {
for (y = 0; y < NUM_COLS; y++) {
for (z = 0; z < NUM_ROWS; z++) {
color = 0;
for (level = 0; level < NUMPLANE; level++) {
if (pixmap[level][z % NUM_ROWS][y / 8] & (1 << y % 8)) {
color = level + 1;
}
}
drawLED(color, (float) y * 4.0, (float) x * 4.0,
(float) (NUM_ROWS - 1 - z) * 4.0);
}
}
}
glPopMatrix();
glutSwapBuffers();
usleep(20000);
}
/**
* Handler for processing key presses.
* @param key The pressed key encoded in ASCII.
* @param x X-position of the mouse pointer.
* @param y Y-position of the mouse pointer.
*/
void keyboard(unsigned char key, int x, int y) {
switch (key) {
case 'q':
printf("Quit\n");
glutDestroyWindow(win);
exit(0);
break;
case ' ':
fakeport |= 0x01;
break;
case 'a':
fakeport |= 0x02;
break;
case 'd':
fakeport |= 0x04;
break;
case 's':
fakeport |= 0x08;
break;
case 'w':
fakeport |= 0x10;
break;
}
}
/**
* Handler for processing key releases.
* @param key The released key encoded in ASCII.
* @param x X-position of the mouse pointer.
* @param y Y-position of the mouse pointer.
*/
void keyboardup(unsigned char key, int x, int y) {
switch (key) {
case ' ':
fakeport &= ~0x01;
break;
case 'a':
fakeport &= ~0x02;
break;
case 'd':
fakeport &= ~0x04;
break;
case 's':
fakeport &= ~0x08;
break;
case 'w':
fakeport &= ~0x10;
break;
}
}
/**
* Relays mouse position and button state to the trackball implementation.
* @param button Currently monitored button.
* @param state State of that button.
* @param x X-position of the mouse pointer.
* @param y Y-position of the mouse pointer.
*/
void mouse(int button, int state, int x, int y) {
tbMouse(button, state, x, y);
}
/**
* Relays motion request to the trackball implementation.
* @param x X-position for the motion direction.
* @param y Y-position for the motion direction.
*/
void motion(int x, int y) {
tbMotion(x, y);
}
/**
* Updating the window size.
* @param width Width of the window.
* @param height Height of the window.
*/
void reshape(int width, int height) {
tbReshape(width, height);
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, (float) WindWidth / (float) WindWidth, 5., 1000.);
gluLookAt(NUM_ROWS * 2., NUM_ROWS * 2. + 50., NUM_COLS * 2., NUM_ROWS * 2.,
NUM_ROWS * 2., NUM_COLS * 2., 0.0, 0.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
WindWidth = width;
WindHeight = height;
}
/**
* Handler for special keys (the arrow keys in particular) for adjusting the
* view angle of the scene.
* @param k The pressed special key using GLUT's nomenclature.
* @param x X-position of the mouse pointer.
* @param y Y-position of the mouse pointer.
*/
static void special(int k, int x, int y) {
switch (k) {
case GLUT_KEY_UP:
view_rotx += 5.0;
break;
case GLUT_KEY_DOWN:
view_rotx -= 5.0;
break;
case GLUT_KEY_LEFT:
view_rotz += 5.0;
break;
case GLUT_KEY_RIGHT:
view_rotz -= 5.0;
break;
default:
return;
}
glutPostRedisplay();
}
/**
* Entry point for starting the display loop thread.
* @param unused Not used. Only here to satisfy signature constraints.
*/
void *display_loop_run(void * unused) {
display_loop();
return 0;
}
/**
* Main function for the simulator.
* @param argc The argument count.
* @param argv Command line arguments.
* @return Exit codem, always zero.
*/
int main(int argc, char **argv) {
WindHeight = 700;
WindWidth = 700;
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
glutInitWindowSize(WindHeight, WindWidth);
win = glutCreateWindow("16x16 Borg Simulator");
// callback
glutDisplayFunc(display);
glutIdleFunc(display);
glutSetKeyRepeat(GLUT_KEY_REPEAT_OFF);
glutKeyboardFunc(keyboard);
glutKeyboardUpFunc(keyboardup);
glutSpecialFunc(special);
glutMouseFunc(mouse);
glutMotionFunc(motion);
// clearcolor & main loop
glClearColor(0, 0, 0, 1.0);
gluPerspective(60.0, (float) WindWidth / (float) WindWidth, 5., 1000.);
gluLookAt(NUM_COLS * 2., NUM_COLS * 2. + 50., NUM_ROWS * 2., NUM_COLS * 2.,
NUM_COLS * 2., NUM_ROWS * 2., 0.0, 0.0, 1.0);
// init Call List for LED
GLUquadric* quad = gluNewQuadric();
glNewList(0, GL_COMPILE);
glColor4f(0.8, 0.0, 0.0, 1.);
gluSphere(quad, 1.0, 12, 12);
glEndList();
glNewList(1, GL_COMPILE);
glColor4f(0.5, 0.0, 0.0, 1.);
gluSphere(quad, 1.4, 12, 12);
glEndList();
glNewList(2, GL_COMPILE);
glColor4f(0.7, 0.0, 0.0, 1.);
gluSphere(quad, 1.55, 12, 12);
glEndList();
glNewList(3, GL_COMPILE);
glColor4f(1.00, 0.0, 0.0, 1.);
gluSphere(quad, 1.7, 12, 12);
glEndList();
tbInit(GLUT_LEFT_BUTTON);
tbAnimate(GL_FALSE);
pthread_t simthread;
pthread_create(&simthread, NULL, display_loop_run, NULL);
glutMainLoop();
return 0;
}
/*@}*/