Attachment 41882 Details for Bug 32845 – GL_LINE_LOOP test case

GL_LINE_LOOP test case

lineloop.c (text/plain), 2.12 KB, created by Matthias Hopf on 2011-01-11 10:02:32 UTC

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Creator: Matthias Hopf

Created: 2011-01-11 10:02:32 UTC

Size: 2.12 KB

patch

obsolete

>#include <math.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <assert.h>
>#include <sys/time.h>
>
>#include <GL/glut.h>
>
>int gfxsizex = 1000, gfxsizey = 800;
>int len = 3000, clear = 1, continuous = 1;
>struct timeval lastt;
>int count = 0;
>
>void draw (void) {
>    int i;
>    static int s = 0;
>    float scale = gfxsizey / 2;
>    fprintf (stderr, "draw s %d\n", s);
>    if (clear)
>	glClear (GL_COLOR_BUFFER_BIT);
>    glBegin (GL_LINE_LOOP);
>    for (i = 0; i < len; i++) {
>	glColor3ub (127 + 128 * ((i+s) & 0x01),
>		    127 + 64  * ((i+s) & 0x02),
>		    127 + 32  * ((i+s) & 0x04));
>	glVertex3f (scale * (1+ sin (i*2*M_PI/len)), scale * (1+ cos (i*2*M_PI/len)), 0);
>    }
>    glEnd();
>    glFlush           ();
>    glutSwapBuffers   ();
>    s = (s+1)%len;
>    if (continuous)
>	glutPostRedisplay ();
>}
>
>
>void reshape (int width, int height) {
>    fprintf (stderr, "reshape %d %d\n", width, height);
>    gfxsizex = width;
>    gfxsizey = height;
>    glViewport     (0, 0, width, height);
>    glMatrixMode   (GL_PROJECTION);
>    glLoadIdentity ();
>    glOrtho        (0, width, 0, height, 0, 1);
>    glMatrixMode   (GL_MODELVIEW);
>    glLoadIdentity ();
>    glutPostRedisplay ();
>}
>
>
>void keyboard (unsigned char key, int x, int y) {
>    exit (0);
>}
>
>
>int main (int argc, char *argv[]) {
>    int db = 1;
>    glutInitWindowSize  (gfxsizex, gfxsizey);
>    glutInit            (&argc, argv);
>    if (argc > 1) {
>	len = atoi  (argv[1]);
>	if (argc > 2) {
>		if (argv[2][0] == 's')
>		    db = 0;
>		if (argc > 3) {
>		    if (argv[3][0] == 'c')
>			clear = 1;
>		    if (argc > 4) {
>			if (argv[4][0] == 'e')
>			    continuous = 0;
>		    }
>		}
>	}
>    } else
>	fprintf (stderr, "Usage: %s [<num_of_lines> [s|d (buffering) [c|- (clear) [e (run on expose only)]]]\n", argv[0]);
>    fprintf (stderr, "Using %s buffer, lineloop of length %d\n",
>	     db ? "double":"single", len);
>    if (db)
>	glutInitDisplayMode (GLUT_RGB|GLUT_DOUBLE);
>    else
>	glutInitDisplayMode (GLUT_RGB);
>    glutCreateWindow    (argv[0]);
>    glutReshapeFunc     (reshape);
>    glutDisplayFunc     (draw);
>    glutKeyboardFunc    (keyboard);
>
>    gettimeofday (&lastt, NULL);
>    glutMainLoop        ();
>
>    exit (0);
>}

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Attachments on bug 32845: 41662 | 41882

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