+++ /dev/null
-/*
- * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that (i) the above copyright notices and this permission notice appear in
- * all copies of the software and related documentation, and (ii) the name of
- * Silicon Graphics may not be used in any advertising or
- * publicity relating to the software without the specific, prior written
- * permission of Silicon Graphics.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
- * ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
- * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
- * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
- * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
- * OF THIS SOFTWARE.
- */
-
-/*
- * Nov 20, 1995 use stdlib's rand()/srand() instead of random()/srand48(), etc.
- */
-
-/*
- * Modified by Li Wei(liwei@aiar.xjtu.edu.cn) to be able to run in Windows
- * 6/13
- *
- * Modified by Brian Paul to compile with Windows OR Unix. 7/23/97
- */
-
-
-#define _HPUX_SOURCE
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <GL/glut.h>
-
-#ifndef RAND_MAX
-# define RAND_MAX 32767
-#endif
-
-
-#define XSIZE 100
-#define YSIZE 75
-
-#define RINGS 5
-#define BLUERING 0
-#define BLACKRING 1
-#define REDRING 2
-#define YELLOWRING 3
-#define GREENRING 4
-
-#define BACKGROUND 8
-
-
-GLenum rgb, doubleBuffer;
-
-#include "tkmap.c"
-
-unsigned char rgb_colors[RINGS][3];
-int mapped_colors[RINGS];
-float dests[RINGS][3];
-float offsets[RINGS][3];
-float angs[RINGS];
-float rotAxis[RINGS][3];
-int iters[RINGS];
-GLuint theTorus;
-
-
-static void FillTorus(float rc, int numc, float rt, int numt)
-{
- int i, j, k;
- double s, t;
- double x, y, z;
- double pi, twopi;
-
- pi = 3.14159265358979323846;
- twopi = 2 * pi;
-
- for (i = 0; i < numc; i++) {
- glBegin(GL_QUAD_STRIP);
- for (j = 0; j <= numt; j++) {
- for (k = 1; k >= 0; k--) {
- s = (i + k) % numc + 0.5;
- t = j % numt;
-
- x = cos(t*twopi/numt) * cos(s*twopi/numc);
- y = sin(t*twopi/numt) * cos(s*twopi/numc);
- z = sin(s*twopi/numc);
- glNormal3f(x, y, z);
-
- x = (rt + rc * cos(s*twopi/numc)) * cos(t*twopi/numt);
- y = (rt + rc * cos(s*twopi/numc)) * sin(t*twopi/numt);
- z = rc * sin(s*twopi/numc);
- glVertex3f(x, y, z);
- }
- }
- glEnd();
- }
-}
-
-static float Clamp(int iters_left, float t)
-{
- if (iters_left < 3) {
- return 0.0;
- }
- return (iters_left-2)*t/iters_left;
-}
-
-static void DrawScene(void)
-{
- int i, j;
- GLboolean goIdle;
- static double t0 = -1.;
- double t, dt;
- t = glutGet(GLUT_ELAPSED_TIME) / 1000.;
- if (t0 < 0.)
- t0 = t;
- dt = t - t0;
-
- if (dt < 1./30.)
- return;
-
- t0 = t;
-
- goIdle = GL_TRUE;
- for (i = 0; i < RINGS; i++) {
- if (iters[i]) {
- for (j = 0; j < 3; j++) {
- offsets[i][j] = Clamp(iters[i], offsets[i][j]);
- }
- angs[i] = Clamp(iters[i], angs[i]);
- iters[i]--;
- goIdle = GL_FALSE;
- }
- }
- if (goIdle) {
- glutIdleFunc(NULL);
- }
-
- glPushMatrix();
-
- glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
- gluLookAt(0,0,10, 0,0,0, 0,1,0);
-
- for (i = 0; i < RINGS; i++) {
- if (rgb) {
- glColor3ubv(rgb_colors[i]);
- } else {
- glIndexi(mapped_colors[i]);
- }
- glPushMatrix();
- glTranslatef(dests[i][0]+offsets[i][0], dests[i][1]+offsets[i][1],
- dests[i][2]+offsets[i][2]);
- glRotatef(angs[i], rotAxis[i][0], rotAxis[i][1], rotAxis[i][2]);
- glCallList(theTorus);
- glPopMatrix();
- }
-
- glPopMatrix();
-
- glFlush();
- if (doubleBuffer) {
- glutSwapBuffers();
- }
-}
-
-static float MyRand(void)
-{
- return 10.0 * ( (float) rand() / (float) RAND_MAX - 0.5 );
-}
-
-#if !defined(GLUTCALLBACK)
-#define GLUTCALLBACK
-#endif
-
-static void GLUTCALLBACK glut_post_redisplay_p(void)
-{
- glutPostRedisplay();
-}
-
-static void ReInit(void)
-{
- int i;
- float deviation;
-
- deviation = MyRand() / 2;
- deviation = deviation * deviation;
- for (i = 0; i < RINGS; i++) {
- offsets[i][0] = MyRand();
- offsets[i][1] = MyRand();
- offsets[i][2] = MyRand();
- angs[i] = 260.0 * MyRand();
- rotAxis[i][0] = MyRand();
- rotAxis[i][1] = MyRand();
- rotAxis[i][2] = MyRand();
- iters[i] = (deviation * MyRand() + 60.0);
- }
- glutIdleFunc(glut_post_redisplay_p);
-}
-
-static void Init(void)
-{
- float base, height;
- float aspect, x, y;
- int i;
-
- float top_y = 1.0;
- float bottom_y = 0.0;
- float top_z = 0.15;
- float bottom_z = 0.69;
- float spacing = 2.5;
- static float lmodel_ambient[] = {0.0, 0.0, 0.0, 0.0};
- static float lmodel_twoside[] = {GL_FALSE};
- static float lmodel_local[] = {GL_FALSE};
- static float light0_ambient[] = {0.1, 0.1, 0.1, 1.0};
- static float light0_diffuse[] = {1.0, 1.0, 1.0, 0.0};
- static float light0_position[] = {0.8660254, 0.5, 1, 0};
- static float light0_specular[] = {1.0, 1.0, 1.0, 0.0};
- static float bevel_mat_ambient[] = {0.0, 0.0, 0.0, 1.0};
- static float bevel_mat_shininess[] = {40.0};
- static float bevel_mat_specular[] = {1.0, 1.0, 1.0, 0.0};
- static float bevel_mat_diffuse[] = {1.0, 0.0, 0.0, 0.0};
-
- srand( (unsigned int) glutGet(GLUT_ELAPSED_TIME) );
-
- ReInit();
- for (i = 0; i < RINGS; i++) {
- rgb_colors[i][0] = rgb_colors[i][1] = rgb_colors[i][2] = 0;
- }
- rgb_colors[BLUERING][2] = 255;
- rgb_colors[REDRING][0] = 255;
- rgb_colors[GREENRING][1] = 255;
- rgb_colors[YELLOWRING][0] = 255;
- rgb_colors[YELLOWRING][1] = 255;
- mapped_colors[BLUERING] = COLOR_BLUE;
- mapped_colors[REDRING] = COLOR_RED;
- mapped_colors[GREENRING] = COLOR_GREEN;
- mapped_colors[YELLOWRING] = COLOR_YELLOW;
- mapped_colors[BLACKRING] = COLOR_BLACK;
-
- dests[BLUERING][0] = -spacing;
- dests[BLUERING][1] = top_y;
- dests[BLUERING][2] = top_z;
-
- dests[BLACKRING][0] = 0.0;
- dests[BLACKRING][1] = top_y;
- dests[BLACKRING][2] = top_z;
-
- dests[REDRING][0] = spacing;
- dests[REDRING][1] = top_y;
- dests[REDRING][2] = top_z;
-
- dests[YELLOWRING][0] = -spacing / 2.0;
- dests[YELLOWRING][1] = bottom_y;
- dests[YELLOWRING][2] = bottom_z;
-
- dests[GREENRING][0] = spacing / 2.0;
- dests[GREENRING][1] = bottom_y;
- dests[GREENRING][2] = bottom_z;
-
- base = 2.0;
- height = 2.0;
- theTorus = glGenLists(1);
- glNewList(theTorus, GL_COMPILE);
- FillTorus(0.1, 8, 1.0, 25);
- glEndList();
-
- x = (float)XSIZE;
- y = (float)YSIZE;
- aspect = x / y;
- glEnable(GL_CULL_FACE);
- glCullFace(GL_BACK);
- glEnable(GL_DEPTH_TEST);
- glClearDepth(1.0);
-
- if (rgb) {
- glClearColor(0.5, 0.5, 0.5, 0.0);
- glLightfv(GL_LIGHT0, GL_AMBIENT, light0_ambient);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);
- glLightfv(GL_LIGHT0, GL_SPECULAR, light0_specular);
- glLightfv(GL_LIGHT0, GL_POSITION, light0_position);
- glEnable(GL_LIGHT0);
-
- glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, lmodel_local);
- glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
- glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
- glEnable(GL_LIGHTING);
-
- glMaterialfv(GL_FRONT, GL_AMBIENT, bevel_mat_ambient);
- glMaterialfv(GL_FRONT, GL_SHININESS, bevel_mat_shininess);
- glMaterialfv(GL_FRONT, GL_SPECULAR, bevel_mat_specular);
- glMaterialfv(GL_FRONT, GL_DIFFUSE, bevel_mat_diffuse);
-
- glColorMaterial(GL_FRONT_AND_BACK, GL_DIFFUSE);
- glEnable(GL_COLOR_MATERIAL);
- glShadeModel(GL_SMOOTH);
- } else {
- glClearIndex(BACKGROUND);
- glShadeModel(GL_FLAT);
- }
-
- glMatrixMode(GL_PROJECTION);
- gluPerspective(45, 1.33, 0.1, 100.0);
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void Reshape(int width, int height)
-{
-
- glViewport(0, 0, width, height);
-}
-
-static void Key(unsigned char key, int x, int y)
-{
-
- switch (key) {
- case 27:
- exit(1);
- case 32:
- ReInit();
- break;
- }
-}
-
-static GLenum Args(int argc, char **argv)
-{
- GLint i;
-
- rgb = GL_TRUE;
- doubleBuffer = GL_TRUE;
-
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-ci") == 0) {
- rgb = GL_FALSE;
- } else if (strcmp(argv[i], "-rgb") == 0) {
- rgb = GL_TRUE;
- } else if (strcmp(argv[i], "-sb") == 0) {
- doubleBuffer = GL_FALSE;
- } else if (strcmp(argv[i], "-db") == 0) {
- doubleBuffer = GL_TRUE;
- } else {
- printf("%s (Bad option).\n", argv[i]);
- return GL_FALSE;
- }
- }
- return GL_TRUE;
-}
-
-int main(int argc, char **argv)
-{
- GLenum type;
-
- glutInit(&argc, argv);
-
- if (Args(argc, argv) == GL_FALSE) {
- exit(1);
- }
-
- glutInitWindowPosition(0, 0); glutInitWindowSize( 400, 300);
-
- type = GLUT_DEPTH;
- type |= (rgb) ? GLUT_RGB : GLUT_INDEX;
- type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
- glutInitDisplayMode(type);
-
- if (glutCreateWindow("Olympic") == GL_FALSE) {
- exit(1);
- }
-
- InitMap();
-
- Init();
-
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(DrawScene);
- glutIdleFunc(glut_post_redisplay_p);
-
- glutMainLoop();
- return 0;
-}
projects / mesa.git / blobdiff