video/ogl_glx.c

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