diff options
Diffstat (limited to 'progs')
-rw-r--r-- | progs/demos/gears.c | 147 |
1 files changed, 45 insertions, 102 deletions
diff --git a/progs/demos/gears.c b/progs/demos/gears.c index 96e7de2a2b..38cd2f8a7b 100644 --- a/progs/demos/gears.c +++ b/progs/demos/gears.c @@ -1,10 +1,11 @@ -/* $Id: gears.c,v 1.3 2000/03/28 16:59:39 rjfrank Exp $ */ +/* $Id: gears.c,v 1.4 2000/03/29 23:57:20 brianp Exp $ */ /* * 3-D gear wheels. This program is in the public domain. * * Command line options: * -info print GL implementation information + * -exit automatically exit after 30 seconds * * * Brian Paul @@ -12,27 +13,6 @@ /* Conversion to GLUT by Mark J. Kilgard */ -/* - * $Log: gears.c,v $ - * Revision 1.3 2000/03/28 16:59:39 rjfrank - * Implemented support for the HP occlusion test extension (osmesa and X) - * - * Revision 1.2 1999/10/21 16:39:06 brianp - * added -info command line option - * - * Revision 1.1.1.1 1999/08/19 00:55:40 jtg - * Imported sources - * - * Revision 3.2 1999/06/03 17:07:36 brianp - * an extra quad was being drawn in front and back faces - * - * Revision 3.1 1998/11/03 02:49:10 brianp - * added fps output - * - * Revision 3.0 1998/02/14 18:42:29 brianp - * initial rev - * - */ #include <math.h> @@ -47,7 +27,7 @@ static GLint T0 = 0; static GLint Frames = 0; - +static GLint autoexit = 0; /** @@ -181,7 +161,7 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width, } static GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0; -static GLint gear1, gear2, gear3, gear3box; +static GLint gear1, gear2, gear3; static GLfloat angle = 0.0; static void @@ -192,54 +172,44 @@ draw(void) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); - 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); - - glPushMatrix(); - glTranslatef(-3.0, -2.0, 0.0); - glRotatef(angle, 0.0, 0.0, 1.0); - glCallList(gear1); - glPopMatrix(); - - glPushMatrix(); - glTranslatef(3.1, -2.0, 0.0); - glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0); - glCallList(gear2); - glPopMatrix(); - - glPushMatrix(); - glTranslatef(-3.1, 4.2, 0.0); - glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0); - -#ifdef GL_HP_occlusion_test - glDepthMask(GL_FALSE); - glColorMask(GL_FALSE,GL_FALSE,GL_FALSE,GL_FALSE); - glEnable(GL_OCCLUSION_TEST_HP); - glGetBooleanv(GL_OCCLUSION_TEST_RESULT_HP,&bRet); - glCallList(gear3box); - glGetBooleanv(GL_OCCLUSION_TEST_RESULT_HP,&bRet); - glDepthMask(GL_TRUE); - glColorMask(GL_TRUE,GL_TRUE,GL_TRUE,GL_TRUE); - glDisable(GL_OCCLUSION_TEST_HP); -#endif - - if (bRet) glCallList(gear3); - glPopMatrix(); + 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); + + glPushMatrix(); + glTranslatef(-3.0, -2.0, 0.0); + glRotatef(angle, 0.0, 0.0, 1.0); + glCallList(gear1); + glPopMatrix(); + + glPushMatrix(); + glTranslatef(3.1, -2.0, 0.0); + glRotatef(-2.0 * angle - 9.0, 0.0, 0.0, 1.0); + glCallList(gear2); + glPopMatrix(); + + glPushMatrix(); + glTranslatef(-3.1, 4.2, 0.0); + glRotatef(-2.0 * angle - 25.0, 0.0, 0.0, 1.0); + glCallList(gear3); + glPopMatrix(); glPopMatrix(); glutSwapBuffers(); Frames++; + { GLint t = glutGet(GLUT_ELAPSED_TIME); if (t - T0 >= 5000) { GLfloat seconds = (t - T0) / 1000.0; GLfloat fps = Frames / seconds; - printf("%d frames in %g seconds = %g FPS\n", Frames, seconds, fps); + printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps); T0 = t; Frames = 0; + if ((t >= 999.0 * autoexit) && (autoexit)) + exit(0); } } } @@ -315,24 +285,11 @@ reshape(int width, int height) static void init(int argc, char *argv[]) { - static GLfloat pos[4] = - {5.0, 5.0, 10.0, 0.0}; - static GLfloat red[4] = - {0.8, 0.1, 0.0, 1.0}; - static GLfloat green[4] = - {0.0, 0.8, 0.2, 1.0}; - static GLfloat blue[4] = - {0.2, 0.2, 1.0, 1.0}; - static float cube[8][3] = { - {-2.35,-2.35,-0.5}, - { 2.35,-2.35,-0.5}, - { 2.35, 2.35,-0.5}, - {-2.35, 2.35,-0.5}, - {-2.35,-2.35, 0.5}, - { 2.35,-2.35, 0.5}, - { 2.35, 2.35, 0.5}, - {-2.35, 2.35, 0.5}, - }; + static GLfloat pos[4] = {5.0, 5.0, 10.0, 0.0}; + static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0}; + static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0}; + static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0}; + GLint i; glLightfv(GL_LIGHT0, GL_POSITION, pos); glEnable(GL_CULL_FACE); @@ -359,33 +316,19 @@ init(int argc, char *argv[]) gear(1.3, 2.0, 0.5, 10, 0.7); glEndList(); - gear3box = glGenLists(1); - glNewList(gear3box, GL_COMPILE); - glDisable(GL_LIGHTING); - glBegin(GL_QUADS); - glVertex3fv(cube[3]); glVertex3fv(cube[2]); - glVertex3fv(cube[1]); glVertex3fv(cube[0]); - glVertex3fv(cube[4]); glVertex3fv(cube[5]); - glVertex3fv(cube[6]); glVertex3fv(cube[7]); - glVertex3fv(cube[0]); glVertex3fv(cube[1]); - glVertex3fv(cube[5]); glVertex3fv(cube[4]); - glVertex3fv(cube[1]); glVertex3fv(cube[2]); - glVertex3fv(cube[6]); glVertex3fv(cube[5]); - glVertex3fv(cube[2]); glVertex3fv(cube[3]); - glVertex3fv(cube[7]); glVertex3fv(cube[6]); - glVertex3fv(cube[3]); glVertex3fv(cube[0]); - glVertex3fv(cube[4]); glVertex3fv(cube[7]); - glEnd(); - glEnable(GL_LIGHTING); - glEndList(); - glEnable(GL_NORMALIZE); - if (argc > 1 && strcmp(argv[1], "-info")==0) { - printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); - printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); - printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); - printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + for ( i=1; i<argc; i++ ) { + if (strcmp(argv[i], "-info")==0) { + printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER)); + printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION)); + printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR)); + printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS)); + } + else if ( strcmp(argv[i], "-exit")==0) { + autoexit = 30; + printf("Auto Exit after %i seconds.\n", autoexit ); + } } } |