+++ /dev/null
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (tech.hmw@plus.it)
- * Humanware s.r.l.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <string.h>
-
-#ifdef WIN32
-#include <windows.h>
-#endif
-
-#include <GL/glut.h>
-#include "readtex.h"
-#include "tunneldat.h"
-
-#ifdef XMESA
-#include "GL/xmesa.h"
-static int fullscreen = 1;
-#endif
-
-static int WIDTH = 640;
-static int HEIGHT = 480;
-
-static GLint T0 = 0;
-static GLint Frames = 0;
-static GLint NiceFog = 1;
-
-#define NUMBLOC 5
-
-#ifndef M_PI
-#define M_PI 3.1415926535
-#endif
-
-/*
-extern int striplength_skin_13[];
-extern float stripdata_skin_13[];
-
-extern int striplength_skin_12[];
-extern float stripdata_skin_12[];
-
-extern int striplength_skin_11[];
-extern float stripdata_skin_11[];
-
-extern int striplength_skin_9[];
-extern float stripdata_skin_9[];
-*/
-
-static int win = 0;
-
-static float obs[3] = { 1000.0, 0.0, 2.0 };
-static float dir[3];
-static float v = 30.;
-static float alpha = 90.0;
-static float beta = 90.0;
-
-static int fog = 1;
-static int bfcull = 1;
-static int usetex = 1;
-static int cstrip = 0;
-static int help = 1;
-static int joyavailable = 0;
-static int joyactive = 0;
-
-static GLuint t1id, t2id;
-
-static void
-inittextures(void)
-{
- glGenTextures(1, &t1id);
- glBindTexture(GL_TEXTURE_2D, t1id);
-
- if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB)) {
- fprintf(stderr, "Error reading a texture.\n");
- exit(-1);
- }
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_NEAREST);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- glGenTextures(1, &t2id);
- glBindTexture(GL_TEXTURE_2D, t2id);
-
- if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB)) {
- fprintf(stderr, "Error reading a texture.\n");
- exit(-1);
- }
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
-
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_LINEAR);
- glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-}
-
-static void
-drawobjs(const int *l, const float *f)
-{
- int mend, j;
-
- if (cstrip) {
- float r = 0.33, g = 0.33, b = 0.33;
-
- for (; (*l) != 0;) {
- mend = *l++;
-
- r += 0.33;
- if (r > 1.0) {
- r = 0.33;
- g += 0.33;
- if (g > 1.0) {
- g = 0.33;
- b += 0.33;
- if (b > 1.0)
- b = 0.33;
- }
- }
-
- glColor3f(r, g, b);
- glBegin(GL_TRIANGLE_STRIP);
- for (j = 0; j < mend; j++) {
- f += 4;
- glTexCoord2fv(f);
- f += 2;
- glVertex3fv(f);
- f += 3;
- }
- glEnd();
- }
- }
- else
- for (; (*l) != 0;) {
- mend = *l++;
-
- glBegin(GL_TRIANGLE_STRIP);
- for (j = 0; j < mend; j++) {
- glColor4fv(f);
- f += 4;
- glTexCoord2fv(f);
- f += 2;
- glVertex3fv(f);
- f += 3;
- }
- glEnd();
- }
-}
-
-static void
-calcposobs(void)
-{
- static double t0 = -1.;
- double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
- if (t0 < 0.0)
- t0 = t;
- dt = t - t0;
- t0 = t;
-
- dir[0] = sin(alpha * M_PI / 180.0);
- dir[1] = cos(alpha * M_PI / 180.0) * sin(beta * M_PI / 180.0);
- dir[2] = cos(beta * M_PI / 180.0);
-
- if (dir[0] < 1.0e-5 && dir[0] > -1.0e-5)
- dir[0] = 0;
- if (dir[1] < 1.0e-5 && dir[1] > -1.0e-5)
- dir[1] = 0;
- if (dir[2] < 1.0e-5 && dir[2] > -1.0e-5)
- dir[2] = 0;
-
- obs[0] += v * dir[0] * dt;
- obs[1] += v * dir[1] * dt;
- obs[2] += v * dir[2] * dt;
-}
-
-static void
-special(int k, int x, int y)
-{
- switch (k) {
- case GLUT_KEY_LEFT:
- alpha -= 2.0;
- break;
- case GLUT_KEY_RIGHT:
- alpha += 2.0;
- break;
- case GLUT_KEY_DOWN:
- beta -= 2.0;
- break;
- case GLUT_KEY_UP:
- beta += 2.0;
- break;
- }
-}
-
-static void
-cleanup(void)
-{
- glDeleteTextures(1, &t1id);
- glDeleteTextures(1, &t2id);
-}
-
-static void
-key(unsigned char k, int x, int y)
-{
- switch (k) {
- case 27:
- cleanup();
- exit(0);
- break;
-
- case 'a':
- v += 5.;
- break;
- case 'z':
- v -= 5.;
- break;
-
-#ifdef XMESA
- case ' ':
- fullscreen = (!fullscreen);
- XMesaSetFXmode(fullscreen ? XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW);
- break;
-#endif
- case 'j':
- joyactive = (!joyactive);
- break;
- case 'h':
- help = (!help);
- break;
- case 'f':
- fog = (!fog);
- break;
- case 't':
- usetex = (!usetex);
- break;
- case 'b':
- if (bfcull) {
- glDisable(GL_CULL_FACE);
- bfcull = 0;
- }
- else {
- glEnable(GL_CULL_FACE);
- bfcull = 1;
- }
- break;
- case 'm':
- cstrip = (!cstrip);
- break;
-
- case 'd':
- fprintf(stderr, "Deleting textures...\n");
- glDeleteTextures(1, &t1id);
- glDeleteTextures(1, &t2id);
- fprintf(stderr, "Loading textures...\n");
- inittextures();
- fprintf(stderr, "Done.\n");
- break;
- case 'n':
- NiceFog = !NiceFog;
- printf("NiceFog %d\n", NiceFog);
- break;
- }
- glutPostRedisplay();
-}
-
-static void
-reshape(int w, int h)
-{
- WIDTH = w;
- HEIGHT = h;
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(80.0, w / (float) h, 1.0, 50.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glViewport(0, 0, w, h);
-}
-
-static void
-printstring(void *font, char *string)
-{
- int len, i;
-
- len = (int) strlen(string);
- for (i = 0; i < len; i++)
- glutBitmapCharacter(font, string[i]);
-}
-
-static void
-printhelp(void)
-{
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glColor4f(0.0, 0.0, 0.0, 0.5);
- glRecti(40, 40, 600, 440);
-
- glColor3f(1.0, 0.0, 0.0);
- glRasterPos2i(300, 420);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Help");
-
- glRasterPos2i(60, 390);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "h - Toggle Help");
- glRasterPos2i(60, 360);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "t - Toggle Textures");
- glRasterPos2i(60, 330);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "f - Toggle Fog");
- glRasterPos2i(60, 300);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "m - Toggle strips");
- glRasterPos2i(60, 270);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "b - Toggle Back face culling");
- glRasterPos2i(60, 240);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "Arrow Keys - Rotate");
- glRasterPos2i(60, 210);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "a - Increase velocity");
- glRasterPos2i(60, 180);
- printstring(GLUT_BITMAP_TIMES_ROMAN_24, "z - Decrease velocity");
-
- glRasterPos2i(60, 150);
- if (joyavailable)
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,
- "j - Toggle jostick control (Joystick control available)");
- else
- printstring(GLUT_BITMAP_TIMES_ROMAN_24,
- "(No Joystick control available)");
-}
-
-static void
-dojoy(void)
-{
-#ifdef WIN32
- static UINT max[2] = { 0, 0 };
- static UINT min[2] = { 0xffffffff, 0xffffffff }, center[2];
- MMRESULT res;
- JOYINFO joy;
-
- res = joyGetPos(JOYSTICKID1, &joy);
-
- if (res == JOYERR_NOERROR) {
- joyavailable = 1;
-
- if (max[0] < joy.wXpos)
- max[0] = joy.wXpos;
- if (min[0] > joy.wXpos)
- min[0] = joy.wXpos;
- center[0] = (max[0] + min[0]) / 2;
-
- if (max[1] < joy.wYpos)
- max[1] = joy.wYpos;
- if (min[1] > joy.wYpos)
- min[1] = joy.wYpos;
- center[1] = (max[1] + min[1]) / 2;
-
- if (joyactive) {
- if (fabs(center[0] - (float) joy.wXpos) > 0.1 * (max[0] - min[0]))
- alpha -=
- 2.0 * (center[0] - (float) joy.wXpos) / (max[0] - min[0]);
- if (fabs(center[1] - (float) joy.wYpos) > 0.1 * (max[1] - min[1]))
- beta += 2.0 * (center[1] - (float) joy.wYpos) / (max[1] - min[1]);
-
- if (joy.wButtons & JOY_BUTTON1)
- v += 0.01;
- if (joy.wButtons & JOY_BUTTON2)
- v -= 0.01;
- }
- }
- else
- joyavailable = 0;
-#endif
-}
-
-static void
-draw(void)
-{
- static char frbuf[80] = "";
- int i;
- float base, offset;
-
- if (NiceFog)
- glHint(GL_FOG_HINT, GL_NICEST);
- else
- glHint(GL_FOG_HINT, GL_DONT_CARE);
-
- dojoy();
-
- glClear(GL_COLOR_BUFFER_BIT);
-
- if (usetex)
- glEnable(GL_TEXTURE_2D);
- else
- glDisable(GL_TEXTURE_2D);
-
- if (fog)
- glEnable(GL_FOG);
- else
- glDisable(GL_FOG);
-
- glShadeModel(GL_SMOOTH);
-
- glPushMatrix();
- calcposobs();
- gluLookAt(obs[0], obs[1], obs[2],
- obs[0] + dir[0], obs[1] + dir[1], obs[2] + dir[2],
- 0.0, 0.0, 1.0);
-
- if (dir[0] > 0) {
- offset = 8.0;
- base = obs[0] - fmod(obs[0], 8.0);
- }
- else {
- offset = -8.0;
- base = obs[0] + (8.0 - fmod(obs[0], 8.0));
- }
-
- glPushMatrix();
- glTranslatef(base - offset / 2.0, 0.0, 0.0);
- for (i = 0; i < NUMBLOC; i++) {
- glTranslatef(offset, 0.0, 0.0);
- glBindTexture(GL_TEXTURE_2D, t1id);
- drawobjs(striplength_skin_11, stripdata_skin_11);
- glBindTexture(GL_TEXTURE_2D, t2id);
- drawobjs(striplength_skin_12, stripdata_skin_12);
- drawobjs(striplength_skin_9, stripdata_skin_9);
- drawobjs(striplength_skin_13, stripdata_skin_13);
- }
- glPopMatrix();
- glPopMatrix();
-
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_FOG);
- glShadeModel(GL_FLAT);
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glColor3f(1.0, 0.0, 0.0);
- glRasterPos2i(10, 10);
- printstring(GLUT_BITMAP_HELVETICA_18, frbuf);
- glRasterPos2i(350, 470);
- printstring(GLUT_BITMAP_HELVETICA_10,
- "Tunnel V1.5 Written by David Bucciarelli (tech.hmw@plus.it)");
-
- if (help)
- printhelp();
-
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
-
- glutSwapBuffers();
-
- Frames++;
- {
- GLint t = glutGet(GLUT_ELAPSED_TIME);
- if (t - T0 >= 2000) {
- GLfloat seconds = (t - T0) / 1000.0;
- GLfloat fps = Frames / seconds;
- sprintf(frbuf, "Frame rate: %f", fps);
- T0 = t;
- Frames = 0;
- }
- }
-}
-
-static void
-idle(void)
-{
- glutPostRedisplay();
-}
-
-
-
-int
-main(int ac, char **av)
-{
- float fogcolor[4] = { 0.7, 0.7, 0.7, 1.0 };
-
- fprintf(stderr,
- "Tunnel V1.5\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
-
- glutInitWindowSize(WIDTH, HEIGHT);
- glutInit(&ac, av);
-
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
-
- if (!(win = glutCreateWindow("Tunnel"))) {
- fprintf(stderr, "Error, couldn't open window\n");
- return -1;
- }
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- gluPerspective(80.0, WIDTH / (float) HEIGHT, 1.0, 50.0);
-
- glMatrixMode(GL_MODELVIEW);
-
- glShadeModel(GL_SMOOTH);
- glDisable(GL_DEPTH_TEST);
- glEnable(GL_CULL_FACE);
- glEnable(GL_TEXTURE_2D);
-
- glEnable(GL_FOG);
- glFogi(GL_FOG_MODE, GL_EXP2);
- glFogfv(GL_FOG_COLOR, fogcolor);
-
- glFogf(GL_FOG_DENSITY, 0.06);
- glHint(GL_FOG_HINT, GL_NICEST);
-
- inittextures();
-
- glClearColor(fogcolor[0], fogcolor[1], fogcolor[2], fogcolor[3]);
- glClear(GL_COLOR_BUFFER_BIT);
-
- calcposobs();
-
- glutReshapeFunc(reshape);
- glutDisplayFunc(draw);
- glutKeyboardFunc(key);
- glutSpecialFunc(special);
- glutIdleFunc(idle);
-
- glEnable(GL_BLEND);
- /*glBlendFunc(GL_SRC_ALPHA_SATURATE,GL_ONE); */
- /*glEnable(GL_POLYGON_SMOOTH); */
-
- glutMainLoop();
-
- cleanup();
- return 0;
-}
projects / mesa.git / blobdiff