src/video/x11/SDL_x11dga.c
branchSDL-1.3
changeset 1668 4da1ee79c9af
parent 1662 782fd950bd46
equal deleted inserted replaced
1667:1fddae038bc8 1668:4da1ee79c9af
    32 
    32 
    33 /* Global for the error handler */
    33 /* Global for the error handler */
    34 int dga_event, dga_error = -1;
    34 int dga_event, dga_error = -1;
    35 
    35 
    36 void
    36 void
    37 X11_EnableDGAMouse (_THIS)
    37 X11_EnableDGAMouse(_THIS)
    38 {
    38 {
    39 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE
    39 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE
    40     int dga_major, dga_minor;
    40     int dga_major, dga_minor;
    41     int use_dgamouse;
    41     int use_dgamouse;
    42     const char *env_use_dgamouse;
    42     const char *env_use_dgamouse;
    43 
    43 
    44     /* Check configuration to see if we should use DGA mouse */
    44     /* Check configuration to see if we should use DGA mouse */
    45     use_dgamouse = 1;
    45     use_dgamouse = 1;
    46     env_use_dgamouse = SDL_getenv ("SDL_VIDEO_X11_DGAMOUSE");
    46     env_use_dgamouse = SDL_getenv("SDL_VIDEO_X11_DGAMOUSE");
    47     if (env_use_dgamouse) {
    47     if (env_use_dgamouse) {
    48         use_dgamouse = atoi (env_use_dgamouse);
    48         use_dgamouse = atoi(env_use_dgamouse);
    49     }
    49     }
    50     /* Check for buggy X servers */
    50     /* Check for buggy X servers */
    51     if (use_dgamouse && BUGGY_XFREE86 ( ==, 4000)) {
    51     if (use_dgamouse && BUGGY_XFREE86( ==, 4000)) {
    52         use_dgamouse = 0;
    52         use_dgamouse = 0;
    53     }
    53     }
    54     /* Only use DGA mouse if the cursor is not showing (in relative mode) */
    54     /* Only use DGA mouse if the cursor is not showing (in relative mode) */
    55     if (use_dgamouse && local_X11 && !(using_dga & DGA_MOUSE) &&
    55     if (use_dgamouse && local_X11 && !(using_dga & DGA_MOUSE) &&
    56         SDL_NAME (XF86DGAQueryExtension) (SDL_Display, &dga_event, &dga_error)
    56         SDL_NAME(XF86DGAQueryExtension) (SDL_Display, &dga_event, &dga_error)
    57         && SDL_NAME (XF86DGAQueryVersion) (SDL_Display, &dga_major,
    57         && SDL_NAME(XF86DGAQueryVersion) (SDL_Display, &dga_major,
    58                                            &dga_minor)) {
    58                                           &dga_minor)) {
    59         if (SDL_NAME (XF86DGADirectVideo)
    59         if (SDL_NAME(XF86DGADirectVideo)
    60             (SDL_Display, SDL_Screen, XF86DGADirectMouse)) {
    60             (SDL_Display, SDL_Screen, XF86DGADirectMouse)) {
    61             using_dga |= DGA_MOUSE;
    61             using_dga |= DGA_MOUSE;
    62         }
    62         }
    63     }
    63     }
    64 #endif /* SDL_VIDEO_DRIVER_X11_DGAMOUSE */
    64 #endif /* SDL_VIDEO_DRIVER_X11_DGAMOUSE */
    65 }
    65 }
    66 
    66 
    67 /* Argh.  Glide resets DGA mouse mode when it makes the context current! */
    67 /* Argh.  Glide resets DGA mouse mode when it makes the context current! */
    68 void
    68 void
    69 X11_CheckDGAMouse (_THIS)
    69 X11_CheckDGAMouse(_THIS)
    70 {
    70 {
    71 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE
    71 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE
    72     int flags;
    72     int flags;
    73 
    73 
    74     if (using_dga & DGA_MOUSE) {
    74     if (using_dga & DGA_MOUSE) {
    75         SDL_NAME (XF86DGAQueryDirectVideo) (SDL_Display, SDL_Screen, &flags);
    75         SDL_NAME(XF86DGAQueryDirectVideo) (SDL_Display, SDL_Screen, &flags);
    76         if (!(flags & XF86DGADirectMouse)) {
    76         if (!(flags & XF86DGADirectMouse)) {
    77             SDL_NAME (XF86DGADirectVideo) (SDL_Display, SDL_Screen,
    77             SDL_NAME(XF86DGADirectVideo) (SDL_Display, SDL_Screen,
    78                                            XF86DGADirectMouse);
    78                                           XF86DGADirectMouse);
    79         }
    79         }
    80     }
    80     }
    81 #endif
    81 #endif
    82 }
    82 }
    83 
    83 
    84 void
    84 void
    85 X11_DisableDGAMouse (_THIS)
    85 X11_DisableDGAMouse(_THIS)
    86 {
    86 {
    87 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE
    87 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE
    88     if (using_dga & DGA_MOUSE) {
    88     if (using_dga & DGA_MOUSE) {
    89         SDL_NAME (XF86DGADirectVideo) (SDL_Display, SDL_Screen, 0);
    89         SDL_NAME(XF86DGADirectVideo) (SDL_Display, SDL_Screen, 0);
    90         using_dga &= ~DGA_MOUSE;
    90         using_dga &= ~DGA_MOUSE;
    91     }
    91     }
    92 #endif /* SDL_VIDEO_DRIVER_X11_DGAMOUSE */
    92 #endif /* SDL_VIDEO_DRIVER_X11_DGAMOUSE */
    93 }
    93 }
    94 
    94