| /* |
| * 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. |
| */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <GL/glut.h> |
| |
| |
| #ifndef CALLBACK |
| #define CALLBACK |
| #endif |
| |
| |
| #define PI 3.141592654 |
| #define BLACK 0 |
| #define GRAY 128 |
| #define WHITE 255 |
| #define RD 0xA4,0x00,0x00,0xFF |
| #define WT 0xFF,0xFF,0xFF,0xFF |
| #define brickImageWidth 16 |
| #define brickImageHeight 16 |
| |
| |
| #include "loadppm.c" |
| |
| GLenum rgb, doubleBuffer; |
| |
| #include "tkmap.c" |
| |
| float black[3] = { |
| 0.0, 0.0, 0.0 |
| }; |
| float blue[3] = { |
| 0.0, 0.0, 1.0 |
| }; |
| float gray[3] = { |
| 0.5, 0.5, 0.5 |
| }; |
| float white[3] = { |
| 1.0, 1.0, 1.0 |
| }; |
| |
| GLenum doDither = GL_TRUE; |
| GLenum shade = GL_TRUE; |
| GLenum texture = GL_TRUE; |
| |
| float xRotation = 30.0, yRotation = 30.0, zRotation = 0.0; |
| GLint radius1, radius2; |
| GLdouble angle1, angle2; |
| GLint slices, stacks; |
| GLint height; |
| GLint orientation = GLU_OUTSIDE; |
| GLint whichQuadric=0; |
| GLUquadricObj *quadObj; |
| |
| GLubyte brickImage[4*brickImageWidth*brickImageHeight] = { |
| RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, |
| RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, |
| RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, |
| RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, |
| WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, |
| RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, |
| RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, |
| RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, |
| RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, |
| WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, |
| RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, |
| RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, |
| RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, |
| RD, RD, RD, RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, |
| WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, WT, |
| RD, RD, RD, RD, WT, RD, RD, RD, RD, RD, RD, RD, RD, RD, WT, RD |
| }; |
| char *texFileName = 0; |
| |
| |
| static void CALLBACK ErrorHandler(GLenum which) |
| { |
| |
| fprintf(stderr, "Quad Error: %s\n", (char *) gluErrorString(which)); |
| } |
| |
| typedef void (GLAPIENTRY *callback_t)(); |
| |
| static void Init(void) |
| { |
| static GLint colorIndexes[3] = {0, 200, 255}; |
| static float ambient[] = {0.1, 0.1, 0.1, 1.0}; |
| static float diffuse[] = {0.5, 1.0, 1.0, 1.0}; |
| static float position[] = {90.0, 90.0, 150.0, 0.0}; |
| static float front_mat_shininess[] = {30.0}; |
| static float front_mat_specular[] = {0.2, 0.2, 0.2, 1.0}; |
| static float front_mat_diffuse[] = {0.5, 0.28, 0.38, 1.0}; |
| static float back_mat_shininess[] = {50.0}; |
| static float back_mat_specular[] = {0.5, 0.5, 0.2, 1.0}; |
| static float back_mat_diffuse[] = {1.0, 1.0, 0.2, 1.0}; |
| static float lmodel_ambient[] = {1.0, 1.0, 1.0, 1.0}; |
| static float lmodel_twoside[] = {GL_TRUE}; |
| static float decal[] = {GL_DECAL}; |
| static float repeat[] = {GL_REPEAT}; |
| static float nearest[] = {GL_NEAREST}; |
| static PPMImage *image; |
| |
| if (!rgb) { |
| SetGreyRamp(); |
| } |
| glClearColor(0.0, 0.0, 0.0, 0.0); |
| |
| glEnable(GL_DEPTH_TEST); |
| |
| glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); |
| glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); |
| glLightfv(GL_LIGHT0, GL_POSITION, position); |
| glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); |
| glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside); |
| glEnable(GL_LIGHTING); |
| glEnable(GL_LIGHT0); |
| |
| glMaterialfv(GL_FRONT, GL_SHININESS, front_mat_shininess); |
| glMaterialfv(GL_FRONT, GL_SPECULAR, front_mat_specular); |
| glMaterialfv(GL_FRONT, GL_DIFFUSE, front_mat_diffuse); |
| glMaterialfv(GL_BACK, GL_SHININESS, back_mat_shininess); |
| glMaterialfv(GL_BACK, GL_SPECULAR, back_mat_specular); |
| glMaterialfv(GL_BACK, GL_DIFFUSE, back_mat_diffuse); |
| if (!rgb) { |
| glMaterialiv( GL_FRONT_AND_BACK, GL_COLOR_INDEXES, colorIndexes); |
| } |
| |
| glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, decal); |
| glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, repeat); |
| glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, repeat); |
| glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, nearest); |
| glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, nearest); |
| if (texFileName) { |
| image = LoadPPM(texFileName); |
| glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
| gluBuild2DMipmaps(GL_TEXTURE_2D, 3, image->sizeX, image->sizeY, |
| GL_RGB, GL_UNSIGNED_BYTE, image->data); |
| } else { |
| glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
| glTexImage2D(GL_TEXTURE_2D, 0, 4, brickImageWidth, brickImageHeight, |
| 0, GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid *)brickImage); |
| } |
| |
| quadObj = gluNewQuadric(); |
| gluQuadricCallback(quadObj, GLU_ERROR, (callback_t) ErrorHandler); |
| |
| radius1 = 10; |
| radius2 = 5; |
| angle1 = 90; |
| angle2 = 180; |
| slices = 16; |
| stacks = 10; |
| height = 20; |
| } |
| |
| static void Reshape(int width, int height) |
| { |
| |
| glViewport(0, 0, (GLint)width, (GLint)height); |
| |
| glMatrixMode(GL_PROJECTION); |
| glLoadIdentity(); |
| glFrustum(-1, 1, -1, 1, 1, 10); |
| gluLookAt(2, 2, 2, 0, 0, 0, 0, 0, 1); |
| glMatrixMode(GL_MODELVIEW); |
| } |
| |
| static void Key2(int key, int x, int y) |
| { |
| |
| switch (key) { |
| case GLUT_KEY_LEFT: |
| yRotation += 5; |
| break; |
| case GLUT_KEY_RIGHT: |
| yRotation -= 5; |
| break; |
| case GLUT_KEY_UP: |
| xRotation += 5; |
| break; |
| case GLUT_KEY_DOWN: |
| xRotation -= 5; |
| break; |
| default: |
| return; |
| } |
| |
| glutPostRedisplay(); |
| } |
| |
| static void Key(unsigned char key, int x, int y) |
| { |
| |
| switch (key) { |
| case 27: |
| exit(1); |
| |
| case 'X': |
| zRotation += 5; |
| break; |
| case 'x': |
| zRotation -= 5; |
| break; |
| |
| case '1': |
| gluQuadricDrawStyle(quadObj, GLU_FILL); |
| break; |
| case '2': |
| gluQuadricDrawStyle(quadObj, GLU_POINT); |
| break; |
| case '3': |
| gluQuadricDrawStyle(quadObj, GLU_LINE); |
| break; |
| case '4': |
| gluQuadricDrawStyle(quadObj, GLU_SILHOUETTE); |
| break; |
| |
| case '0': |
| shade = !shade; |
| if (shade) { |
| glShadeModel(GL_SMOOTH); |
| gluQuadricNormals(quadObj, GLU_SMOOTH); |
| } else { |
| glShadeModel(GL_FLAT); |
| gluQuadricNormals(quadObj, GLU_FLAT); |
| } |
| break; |
| |
| case 'A': |
| stacks++; |
| break; |
| case 'a': |
| stacks--; |
| break; |
| |
| case 'S': |
| slices++; |
| break; |
| case 's': |
| slices--; |
| break; |
| |
| case 'd': |
| switch(orientation) { |
| case GLU_OUTSIDE: |
| orientation = GLU_INSIDE; |
| break; |
| case GLU_INSIDE: |
| default: |
| orientation = GLU_OUTSIDE; |
| break; |
| } |
| gluQuadricOrientation(quadObj, orientation); |
| break; |
| |
| case 'f': |
| whichQuadric = (whichQuadric + 1) % 4; |
| break; |
| |
| case 'G': |
| radius1 += 1; |
| break; |
| case 'g': |
| radius1 -= 1; |
| break; |
| |
| case 'J': |
| radius2 += 1; |
| break; |
| case 'j': |
| radius2 -= 1; |
| break; |
| |
| case 'H': |
| height += 2; |
| break; |
| case 'h': |
| height -= 2; |
| break; |
| |
| case 'K': |
| angle1 += 5; |
| break; |
| case 'k': |
| angle1 -= 5; |
| break; |
| |
| case 'L': |
| angle2 += 5; |
| break; |
| case 'l': |
| angle2 -= 5; |
| break; |
| |
| case 'z': |
| texture = !texture; |
| if (texture) { |
| gluQuadricTexture(quadObj, GL_TRUE); |
| glEnable(GL_TEXTURE_2D); |
| } else { |
| gluQuadricTexture(quadObj, GL_FALSE); |
| glDisable(GL_TEXTURE_2D); |
| } |
| break; |
| |
| case 'q': |
| glDisable(GL_CULL_FACE); |
| break; |
| case 'w': |
| glEnable(GL_CULL_FACE); |
| glCullFace(GL_FRONT); |
| break; |
| case 'e': |
| glEnable(GL_CULL_FACE); |
| glCullFace(GL_BACK); |
| break; |
| |
| case 'r': |
| glFrontFace(GL_CW); |
| break; |
| case 't': |
| glFrontFace(GL_CCW); |
| break; |
| |
| case 'y': |
| doDither = !doDither; |
| (doDither) ? glEnable(GL_DITHER) : glDisable(GL_DITHER); |
| break; |
| default: |
| return; |
| } |
| |
| glutPostRedisplay(); |
| } |
| |
| static void Draw(void) |
| { |
| |
| glLoadIdentity(); |
| glRotatef(xRotation, 1, 0, 0); |
| glRotatef(yRotation, 0, 1, 0); |
| glRotatef(zRotation, 0, 0, 1); |
| |
| glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
| |
| glColor3f(1.0, 1.0, 1.0); |
| switch (whichQuadric) { |
| case 0: |
| glTranslatef(0, 0, -height/20.0); |
| gluCylinder(quadObj, radius1/10.0, radius2/10.0, height/10.0, |
| slices, stacks); |
| break; |
| case 1: |
| gluSphere(quadObj, radius1/10.0, slices, stacks); |
| break; |
| case 2: |
| gluPartialDisk(quadObj, radius2/10.0, radius1/10.0, slices, |
| stacks, angle1, angle2); |
| break; |
| case 3: |
| gluDisk(quadObj, radius2/10.0, radius1/10.0, slices, stacks); |
| break; |
| } |
| |
| glFlush(); |
| |
| if (doubleBuffer) { |
| glutSwapBuffers(); |
| } |
| } |
| |
| static GLenum Args(int argc, char **argv) |
| { |
| GLint i; |
| |
| rgb = GL_TRUE; |
| doubleBuffer = GL_FALSE; |
| |
| 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 if (strcmp(argv[i], "-f") == 0) { |
| if (i+1 >= argc || argv[i+1][0] == '-') { |
| printf("-f (No file name).\n"); |
| return GL_FALSE; |
| } else { |
| texFileName = argv[++i]; |
| } |
| } 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( 300, 300); |
| |
| type = GLUT_DEPTH; |
| type |= (rgb) ? GLUT_RGB : GLUT_INDEX; |
| type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE; |
| glutInitDisplayMode(type); |
| |
| if (glutCreateWindow("Quad Test") == GL_FALSE) { |
| exit(1); |
| } |
| |
| InitMap(); |
| |
| Init(); |
| |
| glutReshapeFunc(Reshape); |
| glutKeyboardFunc(Key); |
| glutSpecialFunc(Key2); |
| glutDisplayFunc(Draw); |
| glutMainLoop(); |
| return 0; |
| } |