video/ogl_glx.c

   1 /*
   2  * $Source: /cvs/cvsroot/d2x/video/ogl_glx.c,v $
   3  * $Revision: 1.3 $
   4  * $Author: bradleyb $
   5  * $Date: 2001-01-29 13:47:52 $
   6  *
   7  * opengl platform specific functions for GLX - Added 9/15/99 Matthew Mueller
   8  *
   9  * $Log: not supported by cvs2svn $
  10  */
  11
  12 #ifdef HAVE_CONFIG_H
  13 #include <conf.h>
  14 #endif
  15
  16 #include <X11/Xlib.h>
  17 #include <GL/glx.h>
  18 #include <string.h>
  19 #include "u_mem.h"
  20 #include "ogl_init.h"
  21 #include "vers_id.h"
  22 #include "error.h"
  23 #include "event.h"
  24 #include "mono.h"
  25 #ifdef XFREE86_DGA
  26 #include <X11/extensions/xf86dga.h>
  27 #include <X11/extensions/xf86vmode.h>
  28 #endif
  29
  30
  31 #include <X11/Xatom.h>
  32
  33 //#define HAVE_MOTIF
  34 #ifdef HAVE_MOTIF
  35
  36 #include <X11/Xm/MwmUtil.h>
  37
  38 #else
  39
  40 /* bit definitions for MwmHints.flags */
  41 #define MWM_HINTS_FUNCTIONS (1L << 0)
  42 #define MWM_HINTS_DECORATIONS (1L << 1)
  43 #define MWM_HINTS_INPUT_MODE (1L << 2)
  44 #define MWM_HINTS_STATUS (1L << 3)
  45
  46 /* bit definitions for MwmHints.functions */
  47 #define MWM_FUNC_ALL            (1L << 0)
  48 #define MWM_FUNC_RESIZE         (1L << 1)
  49 #define MWM_FUNC_MOVE           (1L << 2)
  50 #define MWM_FUNC_MINIMIZE       (1L << 3)
  51 #define MWM_FUNC_MAXIMIZE       (1L << 4)
  52 #define MWM_FUNC_CLOSE          (1L << 5)
  53
  54
  55 /* bit definitions for MwmHints.decorations */
  56 #define MWM_DECOR_ALL  (1L << 0)
  57 #define MWM_DECOR_BORDER (1L << 1)
  58 #define MWM_DECOR_RESIZEH (1L << 2)
  59 #define MWM_DECOR_TITLE  (1L << 3)
  60 #define MWM_DECOR_MENU  (1L << 4)
  61 #define MWM_DECOR_MINIMIZE (1L << 5)
  62 #define MWM_DECOR_MAXIMIZE (1L << 6)
  63
  64 typedef struct
  65 {
  66         unsigned long flags;
  67         unsigned long functions;
  68         unsigned long decorations;
  69         long          inputMode;
  70         unsigned long status;
  71 } PropMotifWmHints;
  72
  73 #define PROP_MOTIF_WM_HINTS_ELEMENTS 5
  74
  75 #endif
  76
  77
  78
  79 /*
  80  * Specify which Motif window manager border decorations to put on a * top-level window.  For example, you can specify that
  81  a window is not * resizabe, or omit the titlebar, or completely remove all decorations. * Input:  dpy - the X display
  82  *        w - the X window
  83  *        flags - bitwise-OR of the MWM_DECOR_xxx symbols in
  84  X11/Xm/MwmUtil.h
  85  *                indicating what decoration elements to enable.  Zero would
  86  *                be no decoration.
  87  */
  88 void set_mwm_border( Display *dpy, Window w, unsigned long dflags,unsigned long fflags ) {
  89         PropMotifWmHints motif_hints;
  90         Atom prop, proptype;
  91
  92         /* setup the property */
  93         motif_hints.flags = MWM_HINTS_DECORATIONS|MWM_HINTS_FUNCTIONS;
  94         motif_hints.decorations = dflags;
  95         motif_hints.functions = fflags;
  96
  97         /* get the atom for the property */
  98         prop = XInternAtom( dpy, "_MOTIF_WM_HINTS", True );   if (!prop) {
  99                 mprintf((0,"set_mwm_border: prop==0\n"));
 100                 /* something went wrong! */
 101                 return;
 102         }
 103
 104         /* not sure this is correct, seems to work, XA_WM_HINTS didn't work */   proptype = prop;
 105
 106         XChangeProperty( dpy, w, /* display, window */ prop, proptype, /* property, type */
 107                         32, /* format: 32-bit datums */ PropModeReplace, /* mode */
 108                         (unsigned char *) &motif_hints, /* data */ PROP_MOTIF_WM_HINTS_ELEMENTS /* nelements */);
 109 }
 110
 111 int glx_erbase,glx_evbase;
 112 Display *dpy;
 113 XSetWindowAttributes swa;
 114 Window win;
 115 XVisualInfo *visinfo;
 116 GLXContext glxcontext;
 117 Pixmap blankpixmap=None;
 118 Cursor blankcursor=None;
 119
 120
 121 void set_wm_hints(int fullscreen){
 122         XSizeHints *hints=NULL;
 123
 124
 125 //      return;//seems screwed.
 126         if (!hints) hints=XAllocSizeHints();
 127         hints->width=hints->min_width=hints->max_width=hints->base_width=grd_curscreen->sc_w;
 128         hints->height=hints->min_height=hints->max_height=hints->base_height=grd_curscreen->sc_h;
 129         hints->flags=PSize|PMinSize|PMaxSize|PBaseSize;
 130 //      hints->min_width=hints->max_width=grd_curscreen->sc_w;
 131 //      hints->min_height=hints->max_height=grd_curscreen->sc_h;
 132 //      hints->flags=PMinSize|PMaxSize;
 133         XSetWMNormalHints(dpy,win,hints);
 134         XFree(hints);
 135         if (fullscreen){
 136                 set_mwm_border(dpy,win,0,0);
 137         }else{
 138                 set_mwm_border(dpy,win,MWM_DECOR_TITLE|MWM_DECOR_BORDER,MWM_FUNC_MOVE|MWM_FUNC_CLOSE);
 139         }
 140 }
 141
 142 static int attribs[]={GLX_RGBA,GLX_DOUBLEBUFFER,GLX_DEPTH_SIZE,0,GLX_STENCIL_SIZE,0,
 143         GLX_ACCUM_RED_SIZE,0,GLX_ACCUM_GREEN_SIZE,0,GLX_ACCUM_BLUE_SIZE,0,GLX_ACCUM_ALPHA_SIZE,0,None};
 144
 145 void ogl_do_fullscreen_internal(void){
 146 //      ogl_smash_texture_list_internal();//not needed
 147         if (ogl_fullscreen){
 148                 set_wm_hints(1);
 149                 XMoveWindow(dpy,win,0,0);
 150                 //                      XDefineCursor(dpy,win,blankcursor);
 151                 //XGrabPointer(dpy,win,0,swa.event_mask,GrabModeAsync,GrabModeAsync,win,blankcursor,CurrentTime);
 152                 XGrabPointer(dpy,win,1,ButtonPressMask | ButtonReleaseMask | PointerMotionMask,GrabModeAsync,GrabModeAsync,win,blankcursor,CurrentTime);
 153                 //                      XGrabKeyboard(dpy,win,1,GrabModeAsync,GrabModeAsync,CurrentTime);//grabbing keyboard doesn't seem to do much good anyway.
 154
 155 #ifdef XFREE86_DGA
 156                 //make ogl_fullscreen
 157                 //can you even do this with DGA ?  just resizing with ctrl-alt-(-/+) caused X to die a horrible death.
 158                 //might have to kill the window/context/whatever first?  HRm.
 159 #endif
 160         }else{
 161                 set_wm_hints(0);
 162                 //                      XUndefineCursor(dpy,win);
 163                 XUngrabPointer(dpy,CurrentTime);
 164                 //                      XUngrabKeyboard(dpy,CurrentTime);
 165 #ifdef XFREE86_DGA
 166                 //return to normal
 167 #endif
 168         }
 169 }
 170
 171 inline void ogl_swap_buffers_internal(void){
 172         glXSwapBuffers(dpy,win);
 173 }
 174 int ogl_init_window(int x, int y){
 175         if (gl_initialized){
 176                 XResizeWindow(dpy,win,x,y);
 177         }else {
 178                 glxcontext=glXCreateContext(dpy,visinfo,0,GL_TRUE);
 179
 180                 //create colormap
 181                 swa.colormap=XCreateColormap(dpy,RootWindow(dpy,visinfo->screen),visinfo->visual,AllocNone);
 182                 //create window
 183                 swa.border_pixel=0;
 184                 swa.event_mask=ExposureMask | StructureNotifyMask | KeyPressMask | KeyReleaseMask| ButtonPressMask | ButtonReleaseMask | PointerMotionMask;
 185                 //win = XCreateWindow(dpy,RootWindow(dpy,visinfo->screen),0,0,x,y,0,visinfo->depth,InputOutput,visinfo->visual,CWBorderPixel|CWColormap|CWEventMask,&swa);
 186                 win = XCreateWindow(dpy,RootWindow(dpy,visinfo->screen),0,0,x,y,0,visinfo->depth,InputOutput,visinfo->visual,CWColormap|CWEventMask,&swa);
 187
 188                 XStoreName(dpy,win,"D2X");
 189 //              XStoreName(dpy,win,"agry");
 190
 191                 XMapWindow(dpy,win);
 192
 193                 glXMakeCurrent(dpy,win,glxcontext);
 194
 195                 set_wm_hints(ogl_fullscreen);
 196
 197                 gl_initialized=1;
 198
 199                 {
 200                         XColor blankcolor;
 201                         unsigned char *blankdata;
 202                         int w,h;
 203                         XQueryBestCursor(dpy,win,1,1,&w,&h);
 204 //                      mprintf((0,"bestcursor %ix%i\n",w,h));
 205                         blankdata=d_malloc(w*h/8);
 206                         memset(blankdata,0,w*h/8);
 207                         memset(&blankcolor,0,sizeof(XColor));
 208                         blankpixmap=XCreateBitmapFromData(dpy,win,blankdata,w,h);
 209                         blankcursor=XCreatePixmapCursor(dpy,blankpixmap,blankpixmap,&blankcolor,&blankcolor,w,h);
 210                         d_free(blankdata);
 211 //                      sleep(1);
 212                 }
 213
 214                 if (ogl_fullscreen)
 215                         ogl_do_fullscreen_internal();
 216 //                      gr_do_fullscreen(ogl_fullscreen);
 217         }
 218 #ifdef GII_XWIN
 219         init_gii_xwin(dpy,win);
 220 #endif
 221         return 0;
 222 }
 223 void ogl_destroy_window(void){
 224         if (gl_initialized){
 225                 glXDestroyContext(dpy,glxcontext);
 226                 XDestroyWindow(dpy,win);
 227                 XFreeColormap(dpy,swa.colormap);
 228                 gl_initialized=0;
 229         }
 230         return;
 231 }
 232 void ogl_init(void){
 233         dpy=XOpenDisplay(0);
 234         if(!dpy)
 235                 Error("no display\n");
 236         else if (glXQueryExtension(dpy,&glx_erbase,&glx_evbase)==False)
 237                 Error("no glx\n");
 238         else if (!(visinfo = glXChooseVisual(dpy,DefaultScreen(dpy),attribs)))
 239                 Error("no visual\n");
 240 }
 241 void ogl_close(void){
 242         if (ogl_fullscreen){
 243                 ogl_fullscreen=0;
 244                 ogl_do_fullscreen_internal();
 245         }
 246         ogl_destroy_window();
 247         if (blankcursor!=None){
 248                 XFreeCursor(dpy,blankcursor);
 249                 XFreePixmap(dpy,blankpixmap);
 250         }
 251         XCloseDisplay(dpy);
 252 }