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Add basic timing information.

tags/mesa_3_5
Gareth Hughes 25 lat temu
rodzic
7f55eb2b14
commit
28861b192f
1 zmienionych plików z 154 dodań i 140 usunięć
Widok podzielony Pokaż statystyki zmian
  1. 154
    140
      progs/demos/geartrain.c

+ 154
- 140
progs/demos/geartrain.c Wyświetl plik

@@ -1,4 +1,4 @@
/* $Id: geartrain.c,v 1.6 2000/04/06 02:22:59 brianp Exp $ */
/* $Id: geartrain.c,v 1.7 2000/11/30 01:44:24 gareth Exp $ */

/*
* GearTrain Simulator * Version: 1.00
@@ -42,7 +42,7 @@ typedef GLfloat TDA[4];
TDA background;


struct AXLE
struct AXLE
{
char name[20];
GLint id;
@@ -57,7 +57,7 @@ struct AXLE
};


struct GEAR
struct GEAR
{
char name[20];
char type[7];
@@ -79,7 +79,7 @@ struct GEAR
};


struct BELT
struct BELT
{
char name[20];
GLint id;
@@ -99,9 +99,12 @@ int number_of_belts;

char Buf1[256], Buf2[256], Buf3[256], Buf4[256], Buf5[256];

static GLint T0 = 0;
static GLint Frames = 0;

static void
strset (char buf[], char ch)

static void
strset (char buf[], char ch)
{
int i;
for (i = 0; i < strlen (buf); i++)
@@ -109,8 +112,8 @@ strset (char buf[], char ch)
}


static void
Clear_Buffers ()
static void
Clear_Buffers ()
{
strset (Buf1, 0);
strset (Buf2, 0);
@@ -120,8 +123,8 @@ Clear_Buffers ()
}


static void
LoadTriplet (TDA A)
static void
LoadTriplet (TDA A)
{
Clear_Buffers ();
fscanf (mainfile, "%s %s %s %s", Buf1, Buf2, Buf3, Buf4);
@@ -131,8 +134,8 @@ LoadTriplet (TDA A)
}


static void
LoadReal (float *a)
static void
LoadReal (float *a)
{
Clear_Buffers ();
fscanf (mainfile, "%s %s", Buf1, Buf2);
@@ -140,8 +143,8 @@ LoadReal (float *a)
}


static void
LoadInteger (int *a)
static void
LoadInteger (int *a)
{
Clear_Buffers ();
fscanf (mainfile, "%s %s", Buf1, Buf2);
@@ -149,8 +152,8 @@ LoadInteger (int *a)
}


static void
LoadText (char *a)
static void
LoadText (char *a)
{
Clear_Buffers ();
fscanf (mainfile, "%s %s", Buf1, Buf2);
@@ -158,11 +161,11 @@ LoadText (char *a)
}


static void
getdata (char filename[])
static void
getdata (char filename[])
{
int gear_count = 0, axle_count = 0, belt_count = 0, i;
mainfile = fopen (filename, "r");
if (!mainfile) {
printf("Error: couldn't open %s\n", filename);
@@ -181,92 +184,92 @@ getdata (char filename[])

if (!(strcmp (Buf1, "BACKGROUND")))
LoadTriplet (background);
if (!(strcmp (Buf1, "ANAME")))
{
LoadText (a[axle_count].name);
axle_count++;
}
if (!(strcmp (Buf1, "ARADIUS")))
LoadReal (&a[axle_count - 1].radius);
if (!(strcmp (Buf1, "AAXIS")))
LoadInteger (&a[axle_count - 1].axis);
if (!(strcmp (Buf1, "ACOLOR")))
LoadTriplet (a[axle_count - 1].color);
if (!(strcmp (Buf1, "APOSITION")))
LoadTriplet (a[axle_count - 1].position);
if (!(strcmp (Buf1, "ALENGTH")))
LoadReal (&a[axle_count - 1].length);
if (!(strcmp (Buf1, "AMOTORED")))
LoadInteger (&a[axle_count - 1].motored);
if (!(strcmp (Buf1, "AANGULARVELOCITY")))
LoadReal (&a[axle_count - 1].angular_velocity);
if (!(strcmp (Buf1, "ADIRECTION")))
LoadInteger (&a[axle_count - 1].direction);
if (!(strcmp (Buf1, "GNAME")))
{
LoadText (g[gear_count].name);
gear_count++;
}
if (!(strcmp (Buf1, "GTYPE")))
LoadText (g[gear_count - 1].type);
if (!(strcmp (Buf1, "GFACE")))
LoadInteger (&g[gear_count - 1].face);
if (!(strcmp (Buf1, "GRADIUS")))
LoadReal (&g[gear_count - 1].radius);
if (!(strcmp (Buf1, "GWIDTH")))
LoadReal (&g[gear_count - 1].width);
if (!(strcmp (Buf1, "GTEETH")))
LoadInteger (&g[gear_count - 1].teeth);
if (!(strcmp (Buf1, "GTOOTHDEPTH")))
LoadReal (&g[gear_count - 1].tooth_depth);
if (!(strcmp (Buf1, "GCOLOR")))
LoadTriplet (g[gear_count - 1].color);
if (!(strcmp (Buf1, "GAXLE")))
LoadText (g[gear_count - 1].axle_name);
if (!(strcmp (Buf1, "GPOSITION")))
LoadInteger (&g[gear_count - 1].relative_position);
if (!(strcmp (Buf1, "BELTNAME")))
{
LoadText (b[belt_count].name);
belt_count++;
}
if (!(strcmp (Buf1, "GEAR1NAME")))
LoadText (b[belt_count - 1].gear1_name);
if (!(strcmp (Buf1, "GEAR2NAME")))
LoadText (b[belt_count - 1].gear2_name);
}
while (Buf1[0] != 0);
for (i = 0; i < number_of_gears; i++)
{
g[i].axis = -1;
g[i].direction = 0;
g[i].angular_velocity = 0.0;
}
number_of_gears = gear_count;
number_of_axles = axle_count;
number_of_belts = belt_count;
@@ -274,12 +277,12 @@ getdata (char filename[])
}


static void
axle (GLint j, GLfloat radius, GLfloat length)
static void
axle (GLint j, GLfloat radius, GLfloat length)
{
GLfloat angle, rad, incr = 10.0 * M_PI / 180.0;
/* draw main cylinder */
/* draw main cylinder */
glBegin (GL_QUADS);
for (angle = 0.0; angle < 360.0; angle += 5.0)
{
@@ -291,8 +294,8 @@ axle (GLint j, GLfloat radius, GLfloat length)
glVertex3f (radius * cos (rad + incr), radius * sin (rad + incr), length / 2);
}
glEnd ();
/* draw front face */
/* draw front face */
glNormal3f (0.0, 0.0, 1.0);
glBegin (GL_TRIANGLES);
for (angle = 0.0; angle < 360.0; angle += 5.0)
@@ -304,8 +307,8 @@ axle (GLint j, GLfloat radius, GLfloat length)
glVertex3f (0.0, 0.0, length / 2);
}
glEnd ();
/* draw back face */
/* draw back face */
glNormal3f (0.0, 0.0, -1.0);
glBegin (GL_TRIANGLES);
for (angle = 0.0; angle <= 360.0; angle += 5.0)
@@ -321,9 +324,9 @@ axle (GLint j, GLfloat radius, GLfloat length)



static void
gear (GLint j, char type[], GLfloat radius, GLfloat width,
GLint teeth, GLfloat tooth_depth)
static void
gear (GLint j, char type[], GLfloat radius, GLfloat width,
GLint teeth, GLfloat tooth_depth)
{
GLint i;
GLfloat r1, r2;
@@ -333,7 +336,7 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,

r1 = radius - tooth_depth;
r2 = radius;
da = 2.0 * M_PI / teeth / 4.0;
if (!g[j].face)
{
@@ -346,7 +349,7 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,
n = 1.0;
}

/* draw front face */
/* draw front face */
if (!(strcmp (type, "NORMAL")))
{
glNormal3f (0.0, 0.0, 1.0 * n);
@@ -375,8 +378,8 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,
}
glEnd ();
}
/* draw front sides of teeth */
/* draw front sides of teeth */
if (!(strcmp (type, "NORMAL")))
{
glNormal3f (0.0, 0.0, 1.0 * n);
@@ -392,10 +395,10 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,
}
glEnd ();
}
glNormal3f (0.0, 0.0, -1.0 * n);
/* draw back face */
/* draw back face */
glBegin (GL_QUAD_STRIP);
for (i = 0; i <= teeth; i++)
{
@@ -406,8 +409,8 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,
glVertex3f (0.0, 0.0, -width * fraction);
}
glEnd ();
/* draw back sides of teeth */
/* draw back sides of teeth */
glNormal3f (0.0, 0.0, -1.0 * n);
glBegin (GL_QUADS);
da = 2.0 * M_PI / teeth / 4.0;
@@ -420,16 +423,16 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,
glVertex3f (r1 * cos (angle), r1 * sin (angle), -width * fraction);
}
glEnd ();
/* draw outward faces of teeth */
/* draw outward faces of teeth */
if (!(strcmp (type, "NORMAL")))
{
glBegin (GL_QUAD_STRIP);
for (i = 0; i < teeth; i++)
{
angle = i * 2.0 * M_PI / teeth;
glVertex3f (r1 * cos (angle), r1 * sin (angle), width * fraction);
glVertex3f (r1 * cos (angle), r1 * sin (angle), -width * fraction);
u = r2 * cos (angle + da) - r1 * cos (angle);
@@ -478,27 +481,27 @@ gear (GLint j, char type[], GLfloat radius, GLfloat width,
glNormal3f (cos (angle), sin (angle), n);
}
}
glVertex3f (r1 * cos (0), r1 * sin (0), width * fraction);
glVertex3f (r1 * cos (0), r1 * sin (0), -width * fraction);
glEnd ();
}


static void
belt (struct GEAR g1, struct GEAR g2)
static void
belt (struct GEAR g1, struct GEAR g2)
{
GLfloat D, alpha, phi, angle, incr, width;
GLint indexes[3] =
{
0, 0, 0
};
GLfloat col[3] =
{
0.0, 0.0, 0.0
};
width = min (g1.width, g2.width);
D = sqrt (pow (g1.position[0] - g2.position[0], 2) + pow (g1.position[1] - g2.position[1], 2) + pow (g1.position[2] - g2.position[2], 2));
alpha = acos ((g2.position[0] - g1.position[0]) / D);
@@ -545,11 +548,11 @@ belt (struct GEAR g1, struct GEAR g2)
}


static int
axle_find (char axle_name[])
static int
axle_find (char axle_name[])
{
int i;
for (i = 0; i < number_of_axles; i++)
{
if (!(strcmp (axle_name, a[i].name)))
@@ -559,11 +562,11 @@ axle_find (char axle_name[])
}


static int
gear_find (char gear_name[])
static int
gear_find (char gear_name[])
{
int i;
for (i = 0; i < number_of_gears; i++)
{
if (!(strcmp (gear_name, g[i].name)))
@@ -573,13 +576,13 @@ gear_find (char gear_name[])
}


static void
process ()
static void
process ()
{
GLfloat x, y, z, D, dist;
GLint axle_index, i, j, g1, g2, k;
char error[80];
for (i = 0; i < number_of_gears; i++)
{
x = 0.0;
@@ -599,12 +602,12 @@ process ()
y = 1.0;
else
z = 1.0;
g[i].position[0] = a[axle_index].position[0] + x * g[i].relative_position;
g[i].position[1] = a[axle_index].position[1] + y * g[i].relative_position;
g[i].position[2] = a[axle_index].position[2] + z * g[i].relative_position;
}
for (k = 0; k < number_of_axles; k++)
{
for (i = 0; i < number_of_gears - 1; i++)
@@ -617,11 +620,11 @@ process ()
if (D < 1.1 * (g[i].radius - g[i].tooth_depth + g[j].radius - g[j].tooth_depth))
{
printf (error, "Gear %s and %s are too close to each other.", g[i].name, g[j].name);
/*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
exit (1);
}
if (g[i].axis == 0)
{
dist = g[i].position[0] - g[j].position[0];
@@ -632,9 +635,9 @@ process ()
}
else
dist = g[i].position[2] - g[j].position[2];
dist = fabs (dist);
if (dist < (g[i].width / 2 + g[j].width / 2))
{
if ((g[i].motored) && (!(g[j].motored)) && (D < 0.95 * (g[i].radius + g[j].radius)))
@@ -646,13 +649,13 @@ process ()
/*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
exit (1);
}
g[j].motored = (a[axle_index].motored = 1);
g[j].direction = (a[axle_index].direction = -g[i].direction);
a[axle_index].angular_velocity = g[i].angular_velocity * g[i].teeth / g[j].teeth;
g[j].angular_velocity = (a[axle_index].angular_velocity *= g[i].radius / g[j].radius);
}
if ((!(g[i].motored)) && (g[j].motored) && (D < 0.95 * (g[i].radius + g[j].radius)))
{
axle_index = axle_find (g[i].axle_name);
@@ -662,16 +665,16 @@ process ()
/*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
exit (1);
}
g[i].motored = (a[axle_index].motored = 1);
g[i].direction = (a[axle_index].direction = -g[j].direction);
a[axle_index].angular_velocity = g[j].angular_velocity * g[j].teeth / g[i].teeth;
g[i].angular_velocity = (a[axle_index].angular_velocity *= g[j].radius / g[i].radius);
}
}
}
if (!(strcmp (g[i].type, g[j].type)) && (!(strcmp (g[i].type, "BEVEL"))) && ((strcmp (g[i].axle_name, g[j].axle_name) != 0)) && (g[i].axis != g[j].axis))
{
D = sqrt (pow (g[i].position[0] - g[j].position[0], 2) + pow (g[i].position[1] - g[j].position[1], 2) + pow (g[i].position[2] - g[j].position[2], 2));
@@ -689,8 +692,8 @@ process ()
a[axle_index].angular_velocity = g[i].angular_velocity * g[i].teeth / g[j].teeth;
g[j].angular_velocity = (a[axle_index].angular_velocity *= g[i].radius / g[j].radius);
}
if ((!(g[i].motored)) && (g[j].motored) && (D < 0.95 * sqrt (g[i].radius * g[i].radius + g[j].radius * g[j].radius)))
{
axle_index = axle_find (g[i].axle_name);
@@ -708,7 +711,7 @@ process ()
}
}
}
for (i = 0; i < number_of_gears; i++)
{
axle_index = axle_find (g[i].axle_name);
@@ -719,7 +722,7 @@ process ()
g[i].angular_velocity = a[axle_index].angular_velocity;
}
}
for (i = 0; i < number_of_belts; i++)
{
g1 = gear_find (b[i].gear1_name);
@@ -731,7 +734,7 @@ process ()
/*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
exit (1);
}
if ((g[g1].axis == g[g2].axis) && (!strcmp (g[g1].type, g[g2].type)) && (!strcmp (g[g1].type, "NORMAL")))
{
/*
@@ -742,7 +745,7 @@ process ()
MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);
exit(1);
}
*/
*/
if (g[g1].axis == 0)
{
dist = g[g1].position[0] - g[g2].position[0];
@@ -753,16 +756,16 @@ process ()
}
else
dist = g[g1].position[2] - g[g2].position[2];
dist = fabs (dist);
if (dist > (g[g1].width / 2 + g[g2].width / 2))
{
printf (error, "Belt %s invalid.", b[i].name);
/*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
exit (1);
}
if (dist < (g[g1].width / 2 + g[g2].width / 2))
{
if (D < g[g1].radius + g[g2].radius)
@@ -771,7 +774,7 @@ process ()
/*MessageBox(NULL,error,windowName,MB_ICONEXCLAMATION|MB_OK);*/
exit (1);
}
if ((g[g1].motored) && (!(g[g2].motored)))
{
axle_index = axle_find (g[g2].axle_name);
@@ -779,7 +782,7 @@ process ()
g[g2].direction = (a[axle_index].direction = g[g1].direction);
g[g2].angular_velocity = (a[axle_index].angular_velocity = g[g1].angular_velocity * g[g1].radius / g[g2].radius);
}
if ((!(g[g1].motored)) && (g[g2].motored))
{
axle_index = axle_find (g[g1].axle_name);
@@ -790,7 +793,7 @@ process ()
}
}
}
for (i = 0; i < number_of_gears; i++)
{
axle_index = axle_find (g[i].axle_name);
@@ -809,20 +812,20 @@ process ()
GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 10.0;


static void
draw (void)
static void
draw (void)
{
int i;
GLfloat x, y, z;
int index;

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);
for (i = 0; i < number_of_gears; i++)
{
x = 0.0;
@@ -837,15 +840,15 @@ draw (void)
x = 1.0;
else
z = 1.0;
if (z != 1.0)
glRotatef (90.0, x, y, z);
glRotatef (g[i].direction * g[i].angle, 0.0, 0.0, 1.0);
glCallList (g[i].id);
glPopMatrix ();
}
for (i = 0; i < number_of_axles; i++)
{
x = 0.0;
@@ -862,11 +865,11 @@ draw (void)

if (z != 1.0)
glRotatef (90.0, x, y, z);
glCallList (a[i].id);
glPopMatrix ();
}
for (i = 0; i < number_of_belts; i++)
{
x = 0.0;
@@ -881,23 +884,35 @@ draw (void)
x = 1.0;
else
z = 1.0;
if (z != 1.0)
glRotatef (90.0, x, y, z);
glCallList (b[i].id);
glPopMatrix ();
}
glPopMatrix ();
glutSwapBuffers ();

{
GLint t = glutGet(GLUT_ELAPSED_TIME);
Frames++;
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);
T0 = t;
Frames = 0;
}
}
}




static void
idle (void)
static void
idle (void)
{
int i;
for (i = 0; i < number_of_gears; i++)
@@ -908,9 +923,9 @@ idle (void)



/* change view angle, exit upon ESC */
static void
key (unsigned char k, int x, int y)
/* change view angle, exit upon ESC */
static void
key (unsigned char k, int x, int y)
{
switch (k)
{
@@ -940,9 +955,9 @@ key (unsigned char k, int x, int y)



/* new window size or exposure */
static void
reshape (int width, int height)
/* new window size or exposure */
static void
reshape (int width, int height)
{
glViewport (0, 0, (GLint) width, (GLint) height);
glMatrixMode (GL_PROJECTION);
@@ -957,7 +972,7 @@ reshape (int width, int height)
GLfloat h = (GLfloat) height / (GLfloat) width;
glFrustum (-1.0, 1.0, -h, h, 5.0, 60.0);
}
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
glTranslatef (0.0, 0.0, -40.0);
@@ -966,8 +981,8 @@ reshape (int width, int height)



static void
init (void)
static void
init (void)
{
GLfloat matShine = 20.00F;
GLfloat light0Pos[4] =
@@ -975,19 +990,19 @@ init (void)
0.70F, 0.70F, 1.25F, 0.50F
};
int i;
glClearColor (background[0], background[1], background[2], 1.0F);
glClearIndex ((GLfloat) 0.0);
glMaterialf (GL_FRONT_AND_BACK, GL_SHININESS, matShine);
glLightfv (GL_LIGHT0, GL_POSITION, light0Pos);
glEnable (GL_LIGHT0);
glEnable (GL_LIGHTING);
glEnable (GL_DEPTH_TEST);
for (i = 0; i < number_of_gears; i++)
g[i].angle = 0.0;
for (i = 0; i < number_of_gears; i++)
{
g[i].id = glGenLists (1);
@@ -997,7 +1012,7 @@ init (void)
gear (i, g[i].type, g[i].radius, g[i].width, g[i].teeth, g[i].tooth_depth);
glEndList ();
}
for (i = 0; i < number_of_axles; i++)
{
a[i].id = glGenLists (1);
@@ -1007,7 +1022,7 @@ init (void)
axle (i, a[i].radius, a[i].length);
glEndList ();
}
for (i = 0; i < number_of_belts; i++)
{
b[i].id = glGenLists (1);
@@ -1015,14 +1030,14 @@ init (void)
belt (g[gear_find (b[i].gear1_name)], g[gear_find (b[i].gear2_name)]);
glEndList ();
}
glEnable (GL_COLOR_MATERIAL);
}



int
main (int argc, char *argv[])
int
main (int argc, char *argv[])
{
char *file;

@@ -1034,14 +1049,14 @@ main (int argc, char *argv[])
glutInitWindowPosition (0, 0);
glutInitWindowSize(640,480);
glutInitDisplayMode (GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
if (glutCreateWindow ("Gear Train Simulation") == GL_FALSE)
exit (1);

getdata (file);
process ();
init ();
glutDisplayFunc (draw);
glutReshapeFunc (reshape);
glutKeyboardFunc (key);
@@ -1049,4 +1064,3 @@ main (int argc, char *argv[])
glutMainLoop ();
return 0;
}


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