summaryrefslogtreecommitdiffstats
path: root/progs/xdemos/vgears.c
diff options
context:
space:
mode:
Diffstat (limited to 'progs/xdemos/vgears.c')
-rw-r--r--progs/xdemos/vgears.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/progs/xdemos/vgears.c b/progs/xdemos/vgears.c
deleted file mode 100644
index f579e8b421d..00000000000
--- a/progs/xdemos/vgears.c
+++ /dev/null
@@ -1,281 +0,0 @@
-
-/*
- * Spinning gears demo for Linux SVGA/Mesa interface in 32K color mode.
- *
- * Compile with: gcc vgears.c -I../include -L../lib -lMesaGL -lX11 -lXext
- * -lvga -lm -o vgears
- *
- * This program is in the public domain.
- * Brian Paul, January 1996
- */
-
-
-#include <vga.h>
-#include <math.h>
-#include "GL/svgamesa.h"
-#include "GL/gl.h"
-
-
-int width = 800, height = 600;
-
-SVGAMesaContext vmc;
-
-
-
-/*
- * Draw a gear wheel. You'll probably want to call this function when
- * building a display list since we do a lot of trig here.
- *
- * Input: inner_radius - radius of hole at center
- * outer_radius - radius at center of teeth
- * width - width of gear
- * teeth - number of teeth
- * tooth_depth - depth of tooth
- */
-static void gear( GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
- GLint teeth, GLfloat tooth_depth )
-{
- GLint i;
- GLfloat r0, r1, r2;
- GLfloat angle, da;
- GLfloat u, v, len;
-
- r0 = inner_radius;
- r1 = outer_radius - tooth_depth/2.0;
- r2 = outer_radius + tooth_depth/2.0;
-
- da = 2.0*M_PI / teeth / 4.0;
-
- glShadeModel( GL_FLAT );
-
- glNormal3f( 0.0, 0.0, 1.0 );
-
- /* draw front face */
- glBegin( GL_QUAD_STRIP );
- for (i=0;i<=teeth;i++) {
- angle = i * 2.0*M_PI / teeth;
- glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 );
- glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 );
- glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 );
- glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 );
- }
- glEnd();
-
- /* draw front sides of teeth */
- glBegin( GL_QUADS );
- da = 2.0*M_PI / teeth / 4.0;
- for (i=0;i<teeth;i++) {
- angle = i * 2.0*M_PI / teeth;
-
- glVertex3f( r1*cos(angle), r1*sin(angle), width*0.5 );
- glVertex3f( r2*cos(angle+da), r2*sin(angle+da), width*0.5 );
- glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), width*0.5 );
- glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 );
- }
- glEnd();
-
-
- glNormal3f( 0.0, 0.0, -1.0 );
-
- /* draw back face */
- 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*0.5 );
- glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 );
- glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 );
- glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 );
- }
- glEnd();
-
- /* draw back sides of teeth */
- glBegin( GL_QUADS );
- da = 2.0*M_PI / teeth / 4.0;
- for (i=0;i<teeth;i++) {
- angle = i * 2.0*M_PI / teeth;
-
- glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 );
- glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), -width*0.5 );
- glVertex3f( r2*cos(angle+da), r2*sin(angle+da), -width*0.5 );
- glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 );
- }
- glEnd();
-
-
- /* draw outward faces of teeth */
- 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*0.5 );
- glVertex3f( r1*cos(angle), r1*sin(angle), -width*0.5 );
- u = r2*cos(angle+da) - r1*cos(angle);
- v = r2*sin(angle+da) - r1*sin(angle);
- len = sqrt( u*u + v*v );
- u /= len;
- v /= len;
- glNormal3f( v, -u, 0.0 );
- glVertex3f( r2*cos(angle+da), r2*sin(angle+da), width*0.5 );
- glVertex3f( r2*cos(angle+da), r2*sin(angle+da), -width*0.5 );
- glNormal3f( cos(angle), sin(angle), 0.0 );
- glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), width*0.5 );
- glVertex3f( r2*cos(angle+2*da), r2*sin(angle+2*da), -width*0.5 );
- u = r1*cos(angle+3*da) - r2*cos(angle+2*da);
- v = r1*sin(angle+3*da) - r2*sin(angle+2*da);
- glNormal3f( v, -u, 0.0 );
- glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), width*0.5 );
- glVertex3f( r1*cos(angle+3*da), r1*sin(angle+3*da), -width*0.5 );
- glNormal3f( cos(angle), sin(angle), 0.0 );
- }
-
- glVertex3f( r1*cos(0), r1*sin(0), width*0.5 );
- glVertex3f( r1*cos(0), r1*sin(0), -width*0.5 );
-
- glEnd();
-
-
- glShadeModel( GL_SMOOTH );
-
- /* draw inside radius cylinder */
- glBegin( GL_QUAD_STRIP );
- for (i=0;i<=teeth;i++) {
- angle = i * 2.0*M_PI / teeth;
- glNormal3f( -cos(angle), -sin(angle), 0.0 );
- glVertex3f( r0*cos(angle), r0*sin(angle), -width*0.5 );
- glVertex3f( r0*cos(angle), r0*sin(angle), width*0.5 );
- }
- glEnd();
-
-}
-
-
-static GLfloat view_rotx=20.0, view_roty=30.0, view_rotz=0.0;
-static GLint gear1, gear2, gear3;
-static GLfloat angle = 0.0;
-
-static GLuint limit;
-static GLuint count = 1;
-
-
-static void draw( void )
-{
- angle += 2.0;
-
- 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 );
- glCallList(gear3);
- glPopMatrix();
-
- glPopMatrix();
-
- SVGAMesaSwapBuffers();
-}
-
-
-static void init( void )
-{
- static GLfloat pos[4] = {5.0, 5.0, 10.0, 1.0 };
- 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 };
-
- GLfloat w = (float) width / (float) height;
- GLfloat h = 1.0;
-
- glLightfv( GL_LIGHT0, GL_POSITION, pos );
- glEnable( GL_CULL_FACE );
- glEnable( GL_LIGHTING );
- glEnable( GL_LIGHT0 );
- glEnable( GL_DEPTH_TEST );
-
- /* make the gears */
- gear1 = glGenLists(1);
- glNewList(gear1, GL_COMPILE);
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red );
- gear( 1.0, 4.0, 1.0, 20, 0.7 );
- glEndList();
-
- gear2 = glGenLists(1);
- glNewList(gear2, GL_COMPILE);
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green );
- gear( 0.5, 2.0, 2.0, 10, 0.7 );
- glEndList();
-
- gear3 = glGenLists(1);
- glNewList(gear3, GL_COMPILE);
- glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue );
- gear( 1.3, 2.0, 0.5, 10, 0.7 );
- glEndList();
-
- glEnable( GL_NORMALIZE );
-
-
- glViewport( 0, 0, width, height );
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- if (width>height) {
- GLfloat w = (GLfloat) width / (GLfloat) height;
- glFrustum( -w, w, -1.0, 1.0, 5.0, 60.0 );
- }
- else {
- 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 );
-}
-
-void setup( void )
-{
- vga_init();
-
- vga_setmode(G800x600x32K);
-/* gl_setcontextvga(G800x600x32K);*/
-
- vmc = SVGAMesaCreateContext(GL_TRUE);
- SVGAMesaMakeCurrent( vmc );
-}
-
-
-void end( void )
-{
- SVGAMesaDestroyContext( vmc );
-
- vga_setmode( TEXT );
-}
-
-
-int main( int argc, char *argv[] )
-{
- int i;
-
- setup();
- init();
- for (i=0;i<4;i++) {
- draw(); /*SVGAMesaSwapBuffers();*/
- }
- end();
- return 0;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 23:27:04 +0000