arch/all-x11/hidd/fullscreen.c

   1 #include <aros/config.h>
   2 #include <X11/Xlib.h>
   3
   4 #if USE_VIDMODE
   5
   6 #include <X11/extensions/xf86vmode.h>
   7
   8 #define __typedef_BYTE
   9 #define __typedef_BOOL
  10 typedef unsigned char UBYTE;
  11
  12 #include <aros/symbolsets.h>
  13
  14 #define DEBUG 0
  15 #include <aros/debug.h>
  16
  17
  18 #include <proto/hostlib.h>
  19
  20 static void *xvm_handle = NULL;
  21
  22 static struct {
  23     Bool (*XF86VidModeSwitchToMode) ( Display* , int , XF86VidModeModeInfo* );
  24     Bool (*XF86VidModeSetViewPort) ( Display* , int , int , int );
  25     Bool (*XF86VidModeQueryVersion) ( Display* , int* , int* );
  26     Bool (*XF86VidModeQueryExtension) ( Display* , int* , int* );
  27     Bool (*XF86VidModeGetAllModeLines) ( Display* , int , int* , XF86VidModeModeInfo*** );
  28 } xvm_func;
  29
  30 static const char *xvm_func_names[] = {
  31     "XF86VidModeSwitchToMode",
  32     "XF86VidModeSetViewPort",
  33     "XF86VidModeQueryVersion",
  34     "XF86VidModeQueryExtension",
  35     "XF86VidModeGetAllModeLines"
  36 };
  37
  38 #define XVM_SOFILE "libXxf86vm.so"
  39
  40 #define XVMCALL(func,...)   (xvm_func.func(__VA_ARGS__))
  41
  42 extern void *x11_hostlib_load_so(const char *, const char **, int, void **);
  43
  44 static int xvm_hostlib_init(void *libbase) {
  45     D(bug("[x11] xvm hostlib init\n"));
  46
  47     if ((xvm_handle = x11_hostlib_load_so(XVM_SOFILE, xvm_func_names, 5, (void **) &xvm_func)) == NULL)
  48         return FALSE;
  49
  50     return TRUE;
  51 }
  52
  53 static int xvm_hostlib_expunge(void *libbase) {
  54     D(bug("[x11] xvm hostlib expunge\n"));
  55
  56     if (xvm_handle != NULL)
  57         HostLib_Close(xvm_handle, NULL);
  58
  59     return TRUE;
  60 }
  61
  62 ADD2INITLIB(xvm_hostlib_init, 1)
  63 ADD2EXPUNGELIB(xvm_hostlib_expunge, 1)
  64
  65
  66 static XF86VidModeModeInfo **videomodes;
  67 static int                   num_videomodes;
  68
  69 int x11_fullscreen_supported(Display *display)
  70 {
  71     int majorversion, minorversion;
  72     int eventbase, errorbase;
  73
  74     if (!XVMCALL(XF86VidModeQueryVersion, display, &majorversion, &minorversion))
  75     {
  76         return 0;
  77
  78     }
  79     if (!XVMCALL(XF86VidModeQueryExtension, display, &eventbase, &errorbase))
  80     {
  81         return 0;
  82     }
  83
  84     if (XVMCALL(XF86VidModeGetAllModeLines, display, DefaultScreen(display), &num_videomodes, &videomodes))
  85     {
  86         if (num_videomodes >= 2) return 1;
  87     }
  88
  89     return 0;
  90 }
  91
  92 void x11_fullscreen_switchmode(Display *display, int *w, int *h)
  93 {
  94     int i, mode;
  95
  96     for(i = 1, mode = 0; i < num_videomodes; i++)
  97     {
  98         if ((videomodes[i]->hdisplay >= *w) &&
  99             (videomodes[i]->vdisplay >= *h) &&
 100             (videomodes[i]->hdisplay < videomodes[mode]->hdisplay) &&
 101             (videomodes[i]->vdisplay < videomodes[mode]->vdisplay))
 102         {
 103             mode = i;
 104         }
 105     }
 106
 107     *w = videomodes[mode]->hdisplay;
 108     *h = videomodes[mode]->vdisplay;
 109
 110     XVMCALL(XF86VidModeSwitchToMode, display, DefaultScreen(display), videomodes[mode]);
 111     XVMCALL(XF86VidModeSetViewPort, display, DefaultScreen(display), 0, 0);
 112 }
 113
 114 #else /* if USE_VIDMODE */
 115
 116 int x11_fullscreen_supported(Display *display)
 117 {
 118     return 0;
 119 }
 120
 121 void x11_fullscreen_switchmode(Display *display, int *w, int *h)
 122 {
 123 }
 124 #endif