修复鼠标隐藏问题。
Quake 代码在当前状态下，当你使用鼠标时，并不会隐藏鼠标。指针会保持可见并在屏幕中间的一个固定点附近抖动 - 非常烦人。我在一个关于 glx 开发的邮件存档中找到了以下简单的修复方法，链接地址为： http://lists.openprojects.net/pipermail/glx-dev/1999-October/000994.html
请查看下面的补丁列表和下载链接，或者您可以自己进行更改。
cd q1src/QW/client
edit the file: gl_vidlinuxglx.c
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在名为 install_grabs(void) 的函数顶部（第 234 行），添加以下代码
static void install_grabs(void)
{
/* vars to make blank cursor */
Pixmap blank;
XColor dummy;
char data[1] = {0};
Cursor cursor;
/* make a blank cursor */
blank = XCreateBitmapFromData (dpy, win, data, 1, 1);
if(blank == None) fprintf(stderr, "error: out of memory.\n");
cursor = XCreatePixmapCursor(dpy, blank, blank, &dummy, &dummy, 0, 0);
XFreePixmap (dpy, blank);
Con_Printf("Cursor blanked.\n");
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XGrabPointer 的第 8 个参数应该从 "None" 更改为 "cursor" 以使用空白光标
XGrabPointer(dpy, win,
True,
0,
GrabModeAsync, GrabModeAsync,
win,
cursor,
CurrentTime);
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如果你在相应的 *vid*.c 文件中进行类似的更改，此修复程序可能适用于其他客户端构建。目前，这会造成内存泄漏，因为它每次都分配另一个 Cursor 对象，并且不调用 XFreeCursor()，但这可能不是问题，因为我认为 1x1 光标不会占用太多内存。 如果您愿意，可以针对以下文件应用以下补丁：q1src/QW/client/gl_vidlinuxglx.c(patch gl_vidlinuxglx.c patchfile）。只需将 begin/end patchfile 行之间的内容剪切并粘贴到一个名为 gl_vidlinuxglx.c.patch 的文件中（或者任何您想命名的文件）。将补丁文件保存在q1src/QW/client目录，gl_vidlinuxglx.c 所在的目录。然后运行命令
patch gl_vidlinuxglx.c gl_vidlinuxglx.c.patch
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此补丁文件将使 gl_vidlinuxglx.c 不再有任何内存泄漏。您可以从以下链接下载此补丁文件： http://www.comptechnews.com/~reaster/mini-HOWTO/LinuxGL-QuakeWorld-mini-HOWTO/gl_vidlinuxglx.c.patch。
*************************** begin patchfile ************************************
*** q1src-p/QW/client/gl_vidlinuxglx.c Tue Dec 21 18:45:54 1999
--- gl_vidlinuxglx.c Sat Aug 19 20:47:42 2000
***************
*** 1,22 ****
! /*
! Copyright (C) 1996-1997 Id Software, Inc.
!
! This program is free software; you can redistribute it and/or
! modify it under the terms of the GNU General Public License
! as published by the Free Software Foundation; either version 2
! of the License, or (at your option) any later version.
!
! This program is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
!
! See the GNU General Public License for more details.
!
! You should have received a copy of the GNU General Public License
! along with this program; if not, write to the Free Software
! Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
!
! */
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
--- 1,22 ----
! /*
! Copyright (C) 1996-1997 Id Software, Inc.
!
! This program is free software; you can redistribute it and/or
! modify it under the terms of the GNU General Public License
! as published by the Free Software Foundation; either version 2
! of the License, or (at your option) any later version.
!
! This program is distributed in the hope that it will be useful,
! but WITHOUT ANY WARRANTY; without even the implied warranty of
! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
!
! See the GNU General Public License for more details.
!
! You should have received a copy of the GNU General Public License
! along with this program; if not, write to the Free Software
! Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
!
! */
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
***************
*** 66,71 ****
--- 66,74 ----
static int scr_width, scr_height;
+ /* blank cursor - gets initialized in VID_Init, freed in VID_Shutdown */
+ Cursor cursor;
+
/*-----------------------------------------------------------------------*/
//int texture_mode = GL_NEAREST;
***************
*** 236,243 ****
0,
GrabModeAsync, GrabModeAsync,
win,
! None,
CurrentTime);
#ifdef USE_DGA
XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
--- 239,247 ----
0,
GrabModeAsync, GrabModeAsync,
win,
! cursor,
CurrentTime);
+ Con_Printf("Cursor blanked.\n");
#ifdef USE_DGA
XF86DGADirectVideo(dpy, DefaultScreen(dpy), XF86DGADirectMouse);
***************
*** 350,355 ****
--- 354,360 ----
if (!ctx)
return;
+ XFreeCursor(dpy, cursor);
glXDestroyContext(dpy, ctx);
}
***************
*** 602,608 ****
unsigned long mask;
Window root;
XVisualInfo *visinfo;
!
S_Init();
Cvar_RegisterVariable (&vid_mode);
--- 607,617 ----
unsigned long mask;
Window root;
XVisualInfo *visinfo;
! /* vars to make blank cursor */
! Pixmap blank;
! XColor dummy;
! char data[1] = {0};
!
S_Init();
Cvar_RegisterVariable (&vid_mode);
***************
*** 701,706 ****
--- 710,720 ----
Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
vid.recalc_refdef = 1; // force a surface cache flush
+
+ blank = XCreateBitmapFromData(dpy, win, data, 1, 1);
+ if(blank == None) fprintf(stderr, "error: out of memory.\n");
+ cursor = XCreatePixmapCursor(dpy, blank, blank, &dummy, &dummy, 0, 0);
+ XFreePixmap(dpy, blank);
}
void Sys_SendKeyEvents(void)
*************************** end patchfile ************************************
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在 Quake 控制台中绑定一些按键来切换鼠标抓取会很方便
bind q "_windowed_mouse 0"
bind w "_windowed_mouse 1"
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