arch/ogl/glx.c

   1 /*
   2  * $Source: /cvs/cvsroot/d2x/arch/ogl/glx.c,v $
   3  * $Revision: 1.3 $
   4  * $Author: bradleyb $
   5  * $Date: 2001-11-04 08:49:57 $
   6  *
   7  * opengl platform specific functions for GLX - Added 9/15/99 Matthew Mueller
   8  *
   9  * $Log: not supported by cvs2svn $
  10  * Revision 1.2  2001/10/31 07:35:47  bradleyb
  11  * Sync with d1x
  12  *
  13  * Revision 1.1  2001/10/25 08:25:34  bradleyb
  14  * Finished moving stuff to arch/blah.  I know, it's ugly, but It'll be easier to sync with d1x.
  15  *
  16  * Revision 1.3  2001/01/29 13:47:52  bradleyb
  17  * Fixed build, some minor cleanups.
  18  *
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <conf.h>
  23 #endif
  24
  25 #include <X11/Xlib.h>
  26 #include <GL/glx.h>
  27 #include <string.h>
  28 #include "ogl_init.h"
  29 #include "vers_id.h"
  30 #include "error.h"
  31 #include "event.h"
  32 #include "mono.h"
  33 #include "u_mem.h"
  34 #ifdef XFREE86_DGA
  35 #include <X11/extensions/xf86dga.h>
  36 #include <X11/extensions/xf86vmode.h>
  37 #endif
  38
  39
  40 #include <X11/Xatom.h>
  41
  42 //#define HAVE_MOTIF
  43 #ifdef HAVE_MOTIF
  44
  45 #include <X11/Xm/MwmUtil.h>
  46
  47 #else
  48
  49 /* bit definitions for MwmHints.flags */
  50 #define MWM_HINTS_FUNCTIONS (1L << 0)
  51 #define MWM_HINTS_DECORATIONS (1L << 1)
  52 #define MWM_HINTS_INPUT_MODE (1L << 2)
  53 #define MWM_HINTS_STATUS (1L << 3)
  54
  55 /* bit definitions for MwmHints.functions */
  56 #define MWM_FUNC_ALL            (1L << 0)
  57 #define MWM_FUNC_RESIZE         (1L << 1)
  58 #define MWM_FUNC_MOVE           (1L << 2)
  59 #define MWM_FUNC_MINIMIZE       (1L << 3)
  60 #define MWM_FUNC_MAXIMIZE       (1L << 4)
  61 #define MWM_FUNC_CLOSE          (1L << 5)
  62
  63
  64 /* bit definitions for MwmHints.decorations */
  65 #define MWM_DECOR_ALL  (1L << 0)
  66 #define MWM_DECOR_BORDER (1L << 1)
  67 #define MWM_DECOR_RESIZEH (1L << 2)
  68 #define MWM_DECOR_TITLE  (1L << 3)
  69 #define MWM_DECOR_MENU  (1L << 4)
  70 #define MWM_DECOR_MINIMIZE (1L << 5)
  71 #define MWM_DECOR_MAXIMIZE (1L << 6)
  72
  73 typedef struct
  74 {
  75         unsigned long flags;
  76         unsigned long functions;
  77         unsigned long decorations;
  78         long          inputMode;
  79         unsigned long status;
  80 } PropMotifWmHints;
  81
  82 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
  83
  84 #endif
  85
  86
  87
  88 /*
  89  * Specify which Motif window manager border decorations to put on a * top-level window.  For example, you can specify that
  90  a window is not * resizabe, or omit the titlebar, or completely remove all decorations. * Input:  dpy - the X display
  91  *        w - the X window
  92  *        flags - bitwise-OR of the MWM_DECOR_xxx symbols in
  93  X11/Xm/MwmUtil.h
  94  *                indicating what decoration elements to enable.  Zero would
  95  *                be no decoration.
  96  */
  97 void set_mwm_border( Display *dpy, Window w, unsigned long dflags,unsigned long fflags ) {
  98         PropMotifWmHints motif_hints;
  99         Atom prop, proptype;
 100
 101         /* setup the property */
 102         motif_hints.flags = MWM_HINTS_DECORATIONS|MWM_HINTS_FUNCTIONS;
 103         motif_hints.decorations = dflags;
 104         motif_hints.functions = fflags;
 105
 106         /* get the atom for the property */
 107         prop = XInternAtom( dpy, "_MOTIF_WM_HINTS", True );   if (!prop) {
 108                 mprintf((0,"set_mwm_border: prop==0\n"));
 109                 /* something went wrong! */
 110                 return;
 111         }
 112
 113         /* not sure this is correct, seems to work, XA_WM_HINTS didn't work */   proptype = prop;
 114
 115         XChangeProperty( dpy, w, /* display, window */ prop, proptype, /* property, type */
 116                         32, /* format: 32-bit datums */ PropModeReplace, /* mode */
 117                         (unsigned char *) &motif_hints, /* data */ PROP_MOTIF_WM_HINTS_ELEMENTS /* nelements */);
 118 }
 119
 120 int glx_erbase,glx_evbase;
 121 Display *dpy;
 122 XSetWindowAttributes swa;
 123 Window win;
 124 XVisualInfo *visinfo;
 125 GLXContext glxcontext;
 126 Pixmap blankpixmap=None;
 127 Cursor blankcursor=None;
 128
 129
 130 void set_wm_hints(int fullscreen){
 131         XSizeHints *hints=NULL;
 132
 133
 134 //      return;//seems screwed.
 135         if (!hints) hints=XAllocSizeHints();
 136         hints->width=hints->min_width=hints->max_width=hints->base_width=grd_curscreen->sc_w;
 137         hints->height=hints->min_height=hints->max_height=hints->base_height=grd_curscreen->sc_h;
 138         hints->flags=PSize|PMinSize|PMaxSize|PBaseSize;
 139 //      hints->min_width=hints->max_width=grd_curscreen->sc_w;
 140 //      hints->min_height=hints->max_height=grd_curscreen->sc_h;
 141 //      hints->flags=PMinSize|PMaxSize;
 142         XSetWMNormalHints(dpy,win,hints);
 143         XFree(hints);
 144         if (fullscreen){
 145                 set_mwm_border(dpy,win,0,0);
 146         }else{
 147                 set_mwm_border(dpy,win,MWM_DECOR_TITLE|MWM_DECOR_BORDER,MWM_FUNC_MOVE|MWM_FUNC_CLOSE);
 148         }
 149 }
 150
 151 static int attribs[]={GLX_RGBA,GLX_DOUBLEBUFFER,GLX_DEPTH_SIZE,0,GLX_STENCIL_SIZE,0,
 152         GLX_ACCUM_RED_SIZE,0,GLX_ACCUM_GREEN_SIZE,0,GLX_ACCUM_BLUE_SIZE,0,GLX_ACCUM_ALPHA_SIZE,0,None};
 153
 154 void ogl_do_fullscreen_internal(void){
 155 //      ogl_smash_texture_list_internal();//not needed
 156         if (ogl_fullscreen){
 157                 set_wm_hints(1);
 158                 XMoveWindow(dpy,win,0,0);
 159                 //                      XDefineCursor(dpy,win,blankcursor);
 160                 //XGrabPointer(dpy,win,0,swa.event_mask,GrabModeAsync,GrabModeAsync,win,blankcursor,CurrentTime);
 161                 XGrabPointer(dpy,win,1,ButtonPressMask | ButtonReleaseMask | PointerMotionMask,GrabModeAsync,GrabModeAsync,win,blankcursor,CurrentTime);
 162                 //                      XGrabKeyboard(dpy,win,1,GrabModeAsync,GrabModeAsync,CurrentTime);//grabbing keyboard doesn't seem to do much good anyway.
 163
 164 #ifdef XFREE86_DGA
 165                 //make ogl_fullscreen
 166                 //can you even do this with DGA ?  just resizing with ctrl-alt-(-/+) caused X to die a horrible death.
 167                 //might have to kill the window/context/whatever first?  HRm.
 168 #endif
 169         }else{
 170                 set_wm_hints(0);
 171                 //                      XUndefineCursor(dpy,win);
 172                 XUngrabPointer(dpy,CurrentTime);
 173                 //                      XUngrabKeyboard(dpy,CurrentTime);
 174 #ifdef XFREE86_DGA
 175                 //return to normal
 176 #endif
 177         }
 178 }
 179
 180 inline void ogl_swap_buffers_internal(void){
 181         glXSwapBuffers(dpy,win);
 182 }
 183 int ogl_init_window(int x, int y){
 184         if (gl_initialized){
 185                 XResizeWindow(dpy,win,x,y);
 186                 set_wm_hints(ogl_fullscreen);
 187
 188         }else {
 189                 glxcontext=glXCreateContext(dpy,visinfo,0,GL_TRUE);
 190
 191                 //create colormap
 192                 swa.colormap=XCreateColormap(dpy,RootWindow(dpy,visinfo->screen),visinfo->visual,AllocNone);
 193                 //create window
 194                 swa.border_pixel=0;
 195                 swa.event_mask=ExposureMask | StructureNotifyMask | KeyPressMask | KeyReleaseMask| ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
 196                 //win = XCreateWindow(dpy,RootWindow(dpy,visinfo->screen),0,0,x,y,0,visinfo->depth,InputOutput,visinfo->visual,CWBorderPixel|CWColormap|CWEventMask,&swa);
 197                 win = XCreateWindow(dpy,RootWindow(dpy,visinfo->screen),0,0,x,y,0,visinfo->depth,InputOutput,visinfo->visual,CWColormap|CWEventMask,&swa);
 198
 199                 XStoreName(dpy,win,DESCENT_VERSION);
 200 //              XStoreName(dpy,win,"agry");
 201
 202                 XMapWindow(dpy,win);
 203
 204                 glXMakeCurrent(dpy,win,glxcontext);
 205
 206                 set_wm_hints(ogl_fullscreen);
 207
 208                 gl_initialized=1;
 209
 210                 {
 211                         XColor blankcolor;
 212                         unsigned char *blankdata;
 213                         int w,h;
 214                         XQueryBestCursor(dpy,win,1,1,&w,&h);
 215 //                      mprintf((0,"bestcursor %ix%i\n",w,h));
 216                         blankdata=d_malloc(w*h/8);
 217                         memset(blankdata,0,w*h/8);
 218                         memset(&blankcolor,0,sizeof(XColor));
 219                         blankpixmap=XCreateBitmapFromData(dpy,win,blankdata,w,h);
 220                         blankcursor=XCreatePixmapCursor(dpy,blankpixmap,blankpixmap,&blankcolor,&blankcolor,w,h);
 221                         d_free(blankdata);
 222 //                      sleep(1);
 223                 }
 224
 225                 if (ogl_fullscreen)
 226                         ogl_do_fullscreen_internal();
 227 //                      gr_do_fullscreen(ogl_fullscreen);
 228         }
 229 #ifdef GII_XWIN
 230         init_gii_xwin(dpy,win);
 231 #endif
 232         return 0;
 233 }
 234 void ogl_destroy_window(void){
 235         if (gl_initialized){
 236                 glXDestroyContext(dpy,glxcontext);
 237                 XDestroyWindow(dpy,win);
 238                 XFreeColormap(dpy,swa.colormap);
 239                 gl_initialized=0;
 240         }
 241         return;
 242 }
 243 void ogl_init(void){
 244         dpy=XOpenDisplay(0);
 245         if(!dpy)
 246                 Error("no display\n");
 247         else if (glXQueryExtension(dpy,&glx_erbase,&glx_evbase)==False)
 248                 Error("no glx\n");
 249         else if (!(visinfo = glXChooseVisual(dpy,DefaultScreen(dpy),attribs)))
 250                 Error("no visual\n");
 251 }
 252 void ogl_close(void){
 253         if (ogl_fullscreen){
 254                 ogl_fullscreen=0;
 255                 ogl_do_fullscreen_internal();
 256         }
 257         ogl_destroy_window();
 258         if (blankcursor!=None){
 259                 XFreeCursor(dpy,blankcursor);
 260                 XFreePixmap(dpy,blankpixmap);
 261         }
 262         XCloseDisplay(dpy);
 263 }