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-rw-r--r--progs/xdemos/xdemo.c334
1 files changed, 0 insertions, 334 deletions
diff --git a/progs/xdemos/xdemo.c b/progs/xdemos/xdemo.c
deleted file mode 100644
index 52039cb..0000000
--- a/progs/xdemos/xdemo.c
+++ /dev/null
@@ -1,334 +0,0 @@
-
-/*
- * Very simple demo of how to use the Mesa/X11 interface instead of the
- * glx, tk or aux toolkits. I highly recommend using the GLX interface
- * instead of the X/Mesa interface, however.
- *
- * This program is in the public domain.
- *
- * Brian Paul
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include "GL/xmesa.h"
-#include "GL/gl.h"
-
-
-
-static GLint Black, Red, Green, Blue;
-
-
-
-static void make_window( char *title, int color_flag )
-{
- int x = 10, y = 10, width = 400, height = 300;
- Display *dpy;
- int scr;
- Window root, win;
- Colormap cmap;
- XColor xcolor;
- int attr_flags;
- XVisualInfo *visinfo;
- XSetWindowAttributes attr;
- XTextProperty tp;
- XSizeHints sh;
- XEvent e;
- XMesaContext context;
- XMesaVisual visual;
- XMesaBuffer buffer;
-
-
- /*
- * Do the usual X things to make a window.
- */
-
- dpy = XOpenDisplay(NULL);
- if (!dpy) {
- printf("Couldn't open default display!\n");
- exit(1);
- }
-
- scr = DefaultScreen(dpy);
- root = RootWindow(dpy, scr);
-
- /* alloc visinfo struct */
- visinfo = (XVisualInfo *) malloc( sizeof(XVisualInfo) );
-
- /* Get a visual and colormap */
- if (color_flag) {
- /* Open TrueColor window */
-
-/*
- if (!XMatchVisualInfo( dpy, scr, 24, TrueColor, visinfo )) {
- printf("Couldn't get 24-bit TrueColor visual!\n");
- exit(1);
- }
-*/
- if (!XMatchVisualInfo( dpy, scr, 8, PseudoColor, visinfo )) {
- printf("Couldn't get 8-bit PseudoColor visual!\n");
- exit(1);
- }
-
- cmap = XCreateColormap( dpy, root, visinfo->visual, AllocNone );
- Black = Red = Green = Blue = 0;
- }
- else {
- /* Open color index window */
-
- if (!XMatchVisualInfo( dpy, scr, 8, PseudoColor, visinfo )) {
- printf("Couldn't get 8-bit PseudoColor visual\n");
- exit(1);
- }
-
- cmap = XCreateColormap( dpy, root, visinfo->visual, AllocNone );
-
- /* Allocate colors */
- xcolor.red = 0x0;
- xcolor.green = 0x0;
- xcolor.blue = 0x0;
- xcolor.flags = DoRed | DoGreen | DoBlue;
- if (!XAllocColor( dpy, cmap, &xcolor )) {
- printf("Couldn't allocate black!\n");
- exit(1);
- }
- Black = xcolor.pixel;
-
- xcolor.red = 0xffff;
- xcolor.green = 0x0;
- xcolor.blue = 0x0;
- xcolor.flags = DoRed | DoGreen | DoBlue;
- if (!XAllocColor( dpy, cmap, &xcolor )) {
- printf("Couldn't allocate red!\n");
- exit(1);
- }
- Red = xcolor.pixel;
-
- xcolor.red = 0x0;
- xcolor.green = 0xffff;
- xcolor.blue = 0x0;
- xcolor.flags = DoRed | DoGreen | DoBlue;
- if (!XAllocColor( dpy, cmap, &xcolor )) {
- printf("Couldn't allocate green!\n");
- exit(1);
- }
- Green = xcolor.pixel;
-
- xcolor.red = 0x0;
- xcolor.green = 0x0;
- xcolor.blue = 0xffff;
- xcolor.flags = DoRed | DoGreen | DoBlue;
- if (!XAllocColor( dpy, cmap, &xcolor )) {
- printf("Couldn't allocate blue!\n");
- exit(1);
- }
- Blue = xcolor.pixel;
- }
-
- /* set window attributes */
- attr.colormap = cmap;
- attr.event_mask = ExposureMask | StructureNotifyMask;
- attr.border_pixel = BlackPixel( dpy, scr );
- attr.background_pixel = BlackPixel( dpy, scr );
- attr_flags = CWColormap | CWEventMask | CWBorderPixel | CWBackPixel;
-
- /* Create the window */
- win = XCreateWindow( dpy, root, x,y, width, height, 0,
- visinfo->depth, InputOutput,
- visinfo->visual,
- attr_flags, &attr);
- if (!win) {
- printf("Couldn't open window!\n");
- exit(1);
- }
-
- XStringListToTextProperty(&title, 1, &tp);
- sh.flags = USPosition | USSize;
- XSetWMProperties(dpy, win, &tp, &tp, 0, 0, &sh, 0, 0);
- XMapWindow(dpy, win);
- while (1) {
- XNextEvent( dpy, &e );
- if (e.type == MapNotify && e.xmap.window == win) {
- break;
- }
- }
-
-
- /*
- * Now do the special Mesa/Xlib stuff!
- */
-
- visual = XMesaCreateVisual( dpy, visinfo,
- (GLboolean) color_flag,
- GL_FALSE, /* alpha_flag */
- GL_FALSE, /* db_flag */
- GL_FALSE, /* stereo flag */
- GL_FALSE, /* ximage_flag */
- 0, /* depth size */
- 0, /* stencil size */
- 0,0,0,0, /* accum_size */
- 0, /* num samples */
- 0, /* level */
- 0 /* caveat */
- );
- if (!visual) {
- printf("Couldn't create Mesa/X visual!\n");
- exit(1);
- }
-
- /* Create a Mesa rendering context */
- context = XMesaCreateContext( visual,
- NULL /* share_list */
- );
- if (!context) {
- printf("Couldn't create Mesa/X context!\n");
- exit(1);
- }
-
- buffer = XMesaCreateWindowBuffer( visual, win );
- if (!buffer) {
- printf("Couldn't create Mesa/X buffer!\n");
- exit(1);
- }
-
-
- XMesaMakeCurrent( context, buffer );
-
- /* Ready to render! */
-}
-
-
-
-static void draw_cube( void )
-{
- /* X faces */
- glIndexi( Red );
- glColor3f( 1.0, 0.0, 0.0 );
- glBegin( GL_POLYGON );
- glVertex3f( 1.0, 1.0, 1.0 );
- glVertex3f( 1.0, -1.0, 1.0 );
- glVertex3f( 1.0, -1.0, -1.0 );
- glVertex3f( 1.0, 1.0, -1.0 );
- glEnd();
-
- glBegin( GL_POLYGON );
- glVertex3f( -1.0, 1.0, 1.0 );
- glVertex3f( -1.0, 1.0, -1.0 );
- glVertex3f( -1.0, -1.0, -1.0 );
- glVertex3f( -1.0, -1.0, 1.0 );
- glEnd();
-
- /* Y faces */
- glIndexi( Green );
- glColor3f( 0.0, 1.0, 0.0 );
- glBegin( GL_POLYGON );
- glVertex3f( 1.0, 1.0, 1.0 );
- glVertex3f( 1.0, 1.0, -1.0 );
- glVertex3f( -1.0, 1.0, -1.0 );
- glVertex3f( -1.0, 1.0, 1.0 );
- glEnd();
-
- glBegin( GL_POLYGON );
- glVertex3f( 1.0, -1.0, 1.0 );
- glVertex3f( -1.0, -1.0, 1.0 );
- glVertex3f( -1.0, -1.0, -1.0 );
- glVertex3f( 1.0, -1.0, -1.0 );
- glEnd();
-
- /* Z faces */
- glIndexi( Blue );
- glColor3f( 0.0, 0.0, 1.0 );
- glBegin( GL_POLYGON );
- glVertex3f( 1.0, 1.0, 1.0 );
- glVertex3f( -1.0, 1.0, 1.0 );
- glVertex3f( -1.0, -1.0, 1.0 );
- glVertex3f( 1.0, -1.0, 1.0 );
- glEnd();
-
- glBegin( GL_POLYGON );
- glVertex3f( 1.0, 1.0, -1.0 );
- glVertex3f( 1.0,-1.0, -1.0 );
- glVertex3f( -1.0,-1.0, -1.0 );
- glVertex3f( -1.0, 1.0, -1.0 );
- glEnd();
-}
-
-
-
-
-static void display_loop( void )
-{
- GLfloat xrot, yrot, zrot;
-
- xrot = yrot = zrot = 0.0;
-
- glClearColor( 0.0, 0.0, 0.0, 0.0 );
- glClearIndex( Black );
-
- glMatrixMode( GL_PROJECTION );
- glLoadIdentity();
- glFrustum( -1.0, 1.0, -1.0, 1.0, 1.0, 10.0 );
- glTranslatef( 0.0, 0.0, -5.0 );
-
- glMatrixMode( GL_MODELVIEW );
- glLoadIdentity();
-
- glCullFace( GL_BACK );
- glEnable( GL_CULL_FACE );
-
- glShadeModel( GL_FLAT );
-
- while (1) {
- glClear( GL_COLOR_BUFFER_BIT );
- glPushMatrix();
- glRotatef( xrot, 1.0, 0.0, 0.0 );
- glRotatef( yrot, 0.0, 1.0, 0.0 );
- glRotatef( zrot, 0.0, 0.0, 1.0 );
-
- draw_cube();
-
- glPopMatrix();
- glFinish();
-
- xrot += 10.0;
- yrot += 7.0;
- zrot -= 3.0;
- }
-
-}
-
-
-
-
-int main( int argc, char *argv[] )
-{
- int mode = 0;
-
- if (argc >= 2)
- {
- if (strcmp(argv[1],"-ci")==0)
- mode = 0;
- else if (strcmp(argv[1],"-rgb")==0)
- mode = 1;
- else
- {
- printf("Bad flag: %s\n", argv[1]);
- printf("Specify -ci for 8-bit color index or -rgb for RGB mode\n");
- exit(1);
- }
- }
- else
- {
- printf("Specify -ci for 8-bit color index or -rgb for RGB mode\n");
- printf("Defaulting to 8-bit color index\n");
- }
-
- make_window( argv[0], mode );
-
- display_loop();
- return 0;
-}
-
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