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-rw-r--r--progs/redbook/polyoff.c107
1 files changed, 94 insertions, 13 deletions
diff --git a/progs/redbook/polyoff.c b/progs/redbook/polyoff.c
index 280eb165ec..ae7ec0b89b 100644
--- a/progs/redbook/polyoff.c
+++ b/progs/redbook/polyoff.c
@@ -47,11 +47,14 @@
#ifdef GL_VERSION_1_1
GLuint list;
-GLint spinx = 0;
-GLint spiny = 0;
+GLint fill = 1;
+GLfloat spinx = 0;
+GLfloat spiny = 0;
GLfloat tdist = 0.0;
GLfloat polyfactor = 1.0;
GLfloat polyunits = 1.0;
+GLboolean doubleBuffer;
+
/* display() draws two spheres, one with a gray, diffuse material,
* the other sphere with a magenta material with a specular highlight.
@@ -70,22 +73,34 @@ void display (void)
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, gray);
glMaterialfv(GL_FRONT, GL_SPECULAR, black);
glMaterialf(GL_FRONT, GL_SHININESS, 0.0);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_POLYGON_OFFSET_FILL);
- glPolygonOffset(polyfactor, polyunits);
- glCallList (list);
- glDisable(GL_POLYGON_OFFSET_FILL);
+ if (fill) {
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_POLYGON_OFFSET_FILL);
+ glPolygonOffset(polyfactor, polyunits);
+ glCallList (list);
+ glDisable(GL_POLYGON_OFFSET_FILL);
+ }
glDisable(GL_LIGHTING);
glDisable(GL_LIGHT0);
glColor3f (1.0, 1.0, 1.0);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+ glPolygonOffset(-polyfactor, -polyunits);
+ if (!fill) glEnable(GL_POLYGON_OFFSET_LINE);
glCallList (list);
+ glDisable(GL_POLYGON_OFFSET_LINE);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
+ if (!fill) {
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glCallList (list);
+ }
+
glPopMatrix ();
glFlush ();
+ if (doubleBuffer) glutSwapBuffers();
}
/* specify initial properties
@@ -130,6 +145,32 @@ void reshape(int width, int height)
gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
}
+static void Benchmark( float xdiff, float ydiff )
+{
+ int startTime, endTime;
+ int draws;
+ double seconds, fps, triPerSecond;
+
+ printf("Benchmarking...\n");
+
+ draws = 0;
+ startTime = glutGet(GLUT_ELAPSED_TIME);
+ spinx = spiny = 0.0;
+ do {
+ spinx += xdiff;
+ spiny += ydiff;
+ display();
+ draws++;
+ endTime = glutGet(GLUT_ELAPSED_TIME);
+ } while (endTime - startTime < 5000); /* 5 seconds */
+
+ /* Results */
+ seconds = (double) (endTime - startTime) / 1000.0;
+ fps = draws / seconds;
+ printf("Result: fps: %g\n", fps);
+}
+
+
/* call when mouse button is pressed */
/* ARGSUSED2 */
void mouse(int button, int state, int x, int y) {
@@ -137,7 +178,7 @@ void mouse(int button, int state, int x, int y) {
case GLUT_LEFT_BUTTON:
switch (state) {
case GLUT_DOWN:
- spinx = (spinx + 5) % 360;
+ spinx += 5;
glutPostRedisplay();
break;
default:
@@ -147,7 +188,7 @@ void mouse(int button, int state, int x, int y) {
case GLUT_MIDDLE_BUTTON:
switch (state) {
case GLUT_DOWN:
- spiny = (spiny + 5) % 360;
+ spiny += 5;
glutPostRedisplay();
break;
default:
@@ -204,6 +245,20 @@ void keyboard (unsigned char key, int x, int y)
printf ("polyunits is %f\n", polyunits);
glutPostRedisplay();
break;
+ case 'b':
+ Benchmark(5.0, 0);
+ break;
+ case 'B':
+ Benchmark(0, 5.0);
+ break;
+ case ' ':
+ fill = !fill;
+ printf ("fill/line: %d\n", fill);
+ glutPostRedisplay();
+ break;
+ case 27: /* Escape */
+ exit(0);
+ break;
default:
break;
}
@@ -222,21 +277,47 @@ key(unsigned char k, int x, int y)
glutPostRedisplay();
}
+GLenum Args(int argc, char **argv)
+{
+ GLint i;
+
+ doubleBuffer = GL_FALSE;
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-sb") == 0) {
+ doubleBuffer = GL_FALSE;
+ } else if (strcmp(argv[i], "-db") == 0) {
+ doubleBuffer = GL_TRUE;
+ } else {
+ printf("%s (Bad option).\n", argv[i]);
+ return GL_FALSE;
+ }
+ }
+ return GL_TRUE;
+}
+
+
/* Main Loop
* Open window with initial window size, title bar,
* RGBA display mode, and handle input events.
*/
int main(int argc, char** argv)
{
+ GLuint type;
glutInit(&argc, argv);
- glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
- glutCreateWindow(argv[0]);
+
+ Args(argc, argv);
+
+ type = GLUT_DEPTH | GLUT_RGB;
+ type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
+
+ glutInitDisplayMode(type);
+ glutCreateWindow("polyoff");
glutReshapeFunc(reshape);
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutKeyboardFunc(keyboard);
gfxinit();
- glutKeyboardFunc(key);
glutMainLoop();
return 0;
}