Attachment 102515 Details for Bug 81139 – A simple program that can effectively trigger the halt on my machine

A simple program that can effectively trigger the halt on my machine

double.c (text/plain), 2.56 KB, created by Boyan Ding on 2014-07-10 03:41:54 UTC

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Filename:

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Creator: Boyan Ding

Created: 2014-07-10 03:41:54 UTC

Size: 2.56 KB

patch

obsolete

>#include <GL/glut.h>
>#include <math.h>
>
>int singleb, doubleb;
>
>void myinit();
>void displays();
>void displayd();
>void spinDisplay();
>void mouse(int btn, int state, int x, int y);
>void myReshape(int w, int h);
>void mykey(unsigned char key, int x, int y);
>void quit_menu(int id);
>
>int main(int argc, char *argv[])
>{
>	glutInit(&argc, argv);
>	glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
>	singleb = glutCreateWindow("single buffered");
>	myinit();
>	glutDisplayFunc(displays);
>	glutReshapeFunc(myReshape);
>	glutIdleFunc(spinDisplay);
>	glutMouseFunc(mouse);
>	glutKeyboardFunc(mykey);
>	glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
>	glutInitWindowPosition(310, 0);
>	doubleb = glutCreateWindow("double buffered");
>	myinit();
>	glutDisplayFunc(displayd);
>	glutReshapeFunc(myReshape);
>	glutIdleFunc(spinDisplay);
>	glutMouseFunc(mouse);
>	glutKeyboardFunc(mykey);
>	glutCreateMenu(quit_menu);
>	glutAddMenuEntry("quit", 1);
>	glutAttachMenu(GLUT_RIGHT_BUTTON);
>	glutMainLoop();
>}
>
>void myinit()
>{
>	glClearColor(0.0, 0.0, 0.0, 0.0);
>	glColor3f(1.0, 1.0, 1.0);
>	glMatrixMode(GL_PROJECTION);
>	glLoadIdentity();
>	gluOrtho2D(-2.0, 2.0, -2.0, 2.0);
>}
>
>#define DEG_TO_RAD 0.017453
>GLfloat theta = 0.0;
>
>void displays()
>{
>	glClear(GL_COLOR_BUFFER_BIT);
>	glBegin(GL_POLYGON);
>	glVertex2f(cos(DEG_TO_RAD * theta), sin(DEG_TO_RAD * theta));
>	glVertex2f(-sin(DEG_TO_RAD * theta), cos(DEG_TO_RAD * theta));
>	glVertex2f(-cos(DEG_TO_RAD * theta), -sin(DEG_TO_RAD * theta));
>	glVertex2f(sin(DEG_TO_RAD * theta), -cos(DEG_TO_RAD * theta));
>	glEnd();
>	glFlush();
>}
>
>void displayd()
>{
>	glClear(GL_COLOR_BUFFER_BIT);
>	glBegin(GL_POLYGON);
>	glVertex2f(cos(DEG_TO_RAD * theta), sin(DEG_TO_RAD * theta));
>	glVertex2f(-sin(DEG_TO_RAD * theta), cos(DEG_TO_RAD * theta));
>	glVertex2f(-cos(DEG_TO_RAD * theta), -sin(DEG_TO_RAD * theta));
>	glVertex2f(sin(DEG_TO_RAD * theta), -cos(DEG_TO_RAD * theta));
>	glEnd();
>	glutSwapBuffers();
>}
>
>void spinDisplay()
>{
>	theta += 2.0;
>	if (theta >= 360.0) theta -= 360.0;
>	glutSetWindow(singleb);
>	glutPostWindowRedisplay(singleb);
>	glutSetWindow(doubleb);
>	glutPostWindowRedisplay(doubleb);
>}
>
>void myReshape(int w, int h)
>{
>	glViewport(0, 0, w, h);
>	glMatrixMode(GL_PROJECTION);
>	glLoadIdentity();
>	gluOrtho2D(-2.0, 2.0, -2.0, 2.0);
>	glMatrixMode(GL_MODELVIEW);
>	glLoadIdentity();
>}
>
>void mouse(int btn, int state, int x, int y)
>{
>	if (btn == GLUT_LEFT_BUTTON && state == GLUT_DOWN)
>		glutIdleFunc(spinDisplay);
>	if (btn == GLUT_MIDDLE_BUTTON && state == GLUT_DOWN)
>		glutIdleFunc(NULL);
>}
>
>void mykey(unsigned char key, int x, int y)
>{
>	if (key == 'q' || key == 'Q') exit(0);
>}
>
>void quit_menu(int id)
>{
>	if (id == 1) exit(0);
>}
>

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Attachments on bug 81139: 102515

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