456 lines
10 KiB
C
456 lines
10 KiB
C
/*
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* Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that (i) the above copyright notices and this permission notice appear in
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* all copies of the software and related documentation, and (ii) the name of
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* Silicon Graphics may not be used in any advertising or
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* publicity relating to the software without the specific, prior written
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* permission of Silicon Graphics.
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*
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* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
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* ANY KIND,
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* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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*
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* IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
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* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <GL/glut.h>
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#ifndef CALLBACK
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#define CALLBACK
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#endif
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#define PI 3.141592654
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#define BLACK 0
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#define GRAY 128
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#define WHITE 255
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#define RD 0xA4,0x00,0x00,0xFF
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#define WT 0xFF,0xFF,0xFF,0xFF
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#define brickImageWidth 16
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#define brickImageHeight 16
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#include "loadppm.c"
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GLenum rgb, doubleBuffer;
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#include "tkmap.c"
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float black[3] = {
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0.0, 0.0, 0.0
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};
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float blue[3] = {
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0.0, 0.0, 1.0
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};
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float gray[3] = {
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0.5, 0.5, 0.5
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};
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float white[3] = {
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1.0, 1.0, 1.0
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};
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GLenum doDither = GL_TRUE;
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GLenum shade = GL_TRUE;
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GLenum texture = GL_TRUE;
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float xRotation = 30.0, yRotation = 30.0, zRotation = 0.0;
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GLint radius1, radius2;
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GLdouble angle1, angle2;
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GLint slices, stacks;
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GLint height;
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GLint orientation = GLU_OUTSIDE;
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GLint whichQuadric=0;
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GLUquadricObj *quadObj;
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GLubyte brickImage[4*brickImageWidth*brickImageHeight] = {
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD,
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WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD,
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WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD,
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WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT,
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RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD
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};
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char *texFileName = 0;
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static void CALLBACK ErrorHandler(GLenum which)
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{
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fprintf(stderr, "Quad Error: %s\n", gluErrorString(which));
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}
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static void Init(void)
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{
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static GLint colorIndexes[3] = {0, 200, 255};
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static float ambient[] = {0.1, 0.1, 0.1, 1.0};
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static float diffuse[] = {0.5, 1.0, 1.0, 1.0};
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static float position[] = {90.0, 90.0, 150.0, 0.0};
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static float front_mat_shininess[] = {30.0};
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static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0};
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static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0};
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static float back_mat_shininess[] = {50.0};
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static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0};
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static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0};
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static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0};
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static float lmodel_twoside[] = {GL_TRUE};
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static float decal[] = {GL_DECAL};
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static float repeat[] = {GL_REPEAT};
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static float nearest[] = {GL_NEAREST};
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static PPMImage *image;
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if (!rgb) {
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SetGreyRamp();
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}
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glClearColor(0.0, 0.0, 0.0, 0.0);
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glEnable(GL_DEPTH_TEST);
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glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
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glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
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glLightfv(GL_LIGHT0, GL_POSITION, position);
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glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
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glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
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glEnable(GL_LIGHTING);
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glEnable(GL_LIGHT0);
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glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess);
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glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular);
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glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse);
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glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess);
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glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular);
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glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse);
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if (!rgb) {
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glMaterialiv( GL_FRONT_AND_BACK, GL_COLOR_INDEXES, colorIndexes);
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}
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glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest);
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glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest);
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if (texFileName) {
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image = LoadPPM(texFileName);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY,
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GL_RGB, GL_UNSIGNED_BYTE, image->data);
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} else {
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glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
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glTexImage2D(GL_TEXTURE_2D, 0, 4, brickImageWidth, brickImageHeight,
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0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid *)brickImage);
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}
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quadObj = gluNewQuadric();
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gluQuadricCallback(quadObj, GLU_ERROR, ErrorHandler);
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radius1 = 10;
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radius2 = 5;
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angle1 = 90;
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angle2 = 180;
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slices = 16;
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stacks = 10;
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height = 20;
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}
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static void Reshape(int width, int height)
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{
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glViewport(0, 0, (GLint)width, (GLint)height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glFrustum(-1, 1, -1, 1, 1, 10);
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gluLookAt(2, 2, 2, 0, 0, 0, 0, 0, 1);
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glMatrixMode(GL_MODELVIEW);
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}
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static void Key2(int key, int x, int y)
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{
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switch (key) {
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case GLUT_KEY_LEFT:
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yRotation += 5;
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break;
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case GLUT_KEY_RIGHT:
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yRotation -= 5;
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break;
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case GLUT_KEY_UP:
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xRotation += 5;
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break;
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case GLUT_KEY_DOWN:
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xRotation -= 5;
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break;
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default:
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return;
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}
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glutPostRedisplay();
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}
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static void Key(unsigned char key, int x, int y)
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{
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switch (key) {
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case 27:
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exit(1);
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case 'X':
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zRotation += 5;
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break;
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case 'x':
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zRotation -= 5;
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break;
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case '1':
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gluQuadricDrawStyle(quadObj, GLU_FILL);
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break;
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case '2':
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gluQuadricDrawStyle(quadObj, GLU_POINT);
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break;
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case '3':
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gluQuadricDrawStyle(quadObj, GLU_LINE);
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break;
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case '4':
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gluQuadricDrawStyle(quadObj, GLU_SILHOUETTE);
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break;
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case '0':
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shade = !shade;
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if (shade) {
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glShadeModel(GL_SMOOTH);
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gluQuadricNormals(quadObj, GLU_SMOOTH);
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} else {
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glShadeModel(GL_FLAT);
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gluQuadricNormals(quadObj, GLU_FLAT);
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}
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break;
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case 'A':
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stacks++;
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break;
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case 'a':
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stacks--;
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break;
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case 'S':
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slices++;
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break;
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case 's':
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slices--;
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break;
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case 'd':
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switch(orientation) {
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case GLU_OUTSIDE:
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orientation = GLU_INSIDE;
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break;
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case GLU_INSIDE:
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default:
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orientation = GLU_OUTSIDE;
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break;
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}
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gluQuadricOrientation(quadObj, orientation);
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break;
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case 'f':
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whichQuadric = (whichQuadric + 1) % 4;
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break;
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case 'G':
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radius1 += 1;
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break;
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case 'g':
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radius1 -= 1;
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break;
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case 'J':
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radius2 += 1;
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break;
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case 'j':
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radius2 -= 1;
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break;
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case 'H':
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height += 2;
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break;
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case 'h':
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height -= 2;
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break;
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case 'K':
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angle1 += 5;
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break;
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case 'k':
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angle1 -= 5;
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break;
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case 'L':
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angle2 += 5;
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break;
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case 'l':
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angle2 -= 5;
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break;
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case 'z':
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texture = !texture;
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if (texture) {
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gluQuadricTexture(quadObj, GL_TRUE);
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glEnable(GL_TEXTURE_2D);
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} else {
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gluQuadricTexture(quadObj, GL_FALSE);
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glDisable(GL_TEXTURE_2D);
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}
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break;
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case 'q':
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glDisable(GL_CULL_FACE);
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break;
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case 'w':
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glEnable(GL_CULL_FACE);
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glCullFace(GL_FRONT);
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break;
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case 'e':
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glEnable(GL_CULL_FACE);
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glCullFace(GL_BACK);
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break;
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case 'r':
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glFrontFace(GL_CW);
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break;
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case 't':
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glFrontFace(GL_CCW);
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break;
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case 'y':
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doDither = !doDither;
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(doDither) ? glEnable(GL_DITHER) : glDisable(GL_DITHER);
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break;
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default:
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return;
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}
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glutPostRedisplay();
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}
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static void Draw(void)
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{
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glLoadIdentity();
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glRotatef(xRotation, 1, 0, 0);
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glRotatef(yRotation, 0, 1, 0);
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glRotatef(zRotation, 0, 0, 1);
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glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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glColor3f(1.0, 1.0, 1.0);
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switch (whichQuadric) {
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case 0:
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glTranslatef(0, 0, -height/20.0);
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gluCylinder(quadObj, radius1/10.0, radius2/10.0, height/10.0,
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slices, stacks);
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break;
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case 1:
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gluSphere(quadObj, radius1/10.0, slices, stacks);
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break;
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case 2:
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gluPartialDisk(quadObj, radius2/10.0, radius1/10.0, slices,
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stacks, angle1, angle2);
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break;
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case 3:
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gluDisk(quadObj, radius2/10.0, radius1/10.0, slices, stacks);
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break;
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}
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glFlush();
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if (doubleBuffer) {
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glutSwapBuffers();
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}
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}
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static GLenum Args(int argc, char **argv)
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{
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GLint i;
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rgb = GL_TRUE;
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doubleBuffer = GL_FALSE;
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for (i = 1; i < argc; i++) {
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if (strcmp(argv[i], "-ci") == 0) {
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rgb = GL_FALSE;
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} else if (strcmp(argv[i], "-rgb") == 0) {
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rgb = GL_TRUE;
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} else if (strcmp(argv[i], "-sb") == 0) {
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doubleBuffer = GL_FALSE;
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} else if (strcmp(argv[i], "-db") == 0) {
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doubleBuffer = GL_TRUE;
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} else if (strcmp(argv[i], "-f") == 0) {
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if (i+1 >= argc || argv[i+1][0] == '-') {
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printf("-f (No file name).\n");
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return GL_FALSE;
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} else {
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texFileName = argv[++i];
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}
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} else {
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printf("%s (Bad option).\n", argv[i]);
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return GL_FALSE;
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}
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}
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return GL_TRUE;
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}
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int main(int argc, char **argv)
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{
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GLenum type;
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glutInit(&argc, argv);
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if (Args(argc, argv) == GL_FALSE) {
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exit(1);
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}
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glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
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type = GLUT_DEPTH;
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type |= (rgb) ? GLUT_RGB : GLUT_INDEX;
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type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
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glutInitDisplayMode(type);
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if (glutCreateWindow("Quad Test") == GL_FALSE) {
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exit(1);
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}
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InitMap();
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Init();
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glutReshapeFunc(Reshape);
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glutKeyboardFunc(Key);
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glutSpecialFunc(Key2);
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glutDisplayFunc(Draw);
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glutMainLoop();
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return 0;
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}
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