1400 lines
41 KiB
C
1400 lines
41 KiB
C
/*
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* Xephyr - A kdrive X server thats runs in a host X window.
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* Authored by Matthew Allum <mallum@o-hand.com>
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*
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* Copyright © 2004 Nokia
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Nokia not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Nokia makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <kdrive-config.h>
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#endif
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/*
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* including some server headers (like kdrive-config.h)
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* might define the macro _XSERVER64
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* on 64 bits machines. That macro must _NOT_ be defined for Xlib
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* client code, otherwise bad things happen.
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* So let's undef that macro if necessary.
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*/
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#ifdef _XSERVER64
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#undef _XSERVER64
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#endif
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#include "hostx.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h> /* for memset */
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#include <errno.h>
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#include <time.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/time.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/Xatom.h>
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#include <X11/keysym.h>
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#include <X11/extensions/XShm.h>
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#include <X11/extensions/shape.h>
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#ifdef XF86DRI
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#include <GL/glx.h>
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#endif /* XF86DRI */
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#include "ephyrlog.h"
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#ifdef XF86DRI
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extern Bool XF86DRIQueryExtension(Display * dpy,
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int *event_basep, int *error_basep);
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#endif
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/*
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* All xlib calls go here, which gets built as its own .a .
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* Mixing kdrive and xlib headers causes all sorts of types
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* to get clobbered.
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*/
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struct EphyrHostScreen {
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Window win;
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Window win_pre_existing; /* Set via -parent option like xnest */
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Window peer_win; /* Used for GL; should be at most one */
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XImage *ximg;
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int win_width, win_height;
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int server_depth;
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unsigned char *fb_data; /* only used when host bpp != server bpp */
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XShmSegmentInfo shminfo;
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void *info; /* Pointer to the screen this is associated with */
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int mynum; /* Screen number */
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};
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struct EphyrHostXVars {
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char *server_dpy_name;
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Display *dpy;
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int screen;
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Visual *visual;
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Window winroot;
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GC gc;
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int depth;
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Bool use_host_cursor;
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Bool use_fullscreen;
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Bool have_shm;
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int n_screens;
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struct EphyrHostScreen *screens;
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long damage_debug_msec;
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unsigned long cmap[256];
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};
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/* memset ( missing> ) instead of below */
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/*static EphyrHostXVars HostX = { "?", 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};*/
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static EphyrHostXVars HostX;
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static int HostXWantDamageDebug = 0;
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extern EphyrKeySyms ephyrKeySyms;
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extern int monitorResolution;
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char *ephyrResName = NULL;
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int ephyrResNameFromCmd = 0;
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char *ephyrTitle = NULL;
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static void
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hostx_set_fullscreen_hint(void);
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/* X Error traps */
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static int trapped_error_code = 0;
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static int (*old_error_handler) (Display * d, XErrorEvent * e);
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#define host_depth_matches_server(_vars) (HostX.depth == (_vars)->server_depth)
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static struct EphyrHostScreen *
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host_screen_from_screen_info(EphyrScreenInfo * screen)
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{
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int i;
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for (i = 0; i < HostX.n_screens; i++) {
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if (HostX.screens[i].info == screen) {
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return &HostX.screens[i];
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}
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}
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return NULL;
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}
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static int
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error_handler(Display * display, XErrorEvent * error)
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{
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trapped_error_code = error->error_code;
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return 0;
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}
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static void
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hostx_errors_trap(void)
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{
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trapped_error_code = 0;
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old_error_handler = XSetErrorHandler(error_handler);
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}
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static int
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hostx_errors_untrap(void)
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{
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XSetErrorHandler(old_error_handler);
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return trapped_error_code;
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}
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int
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hostx_want_screen_size(EphyrScreenInfo screen, int *width, int *height)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
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if (host_screen &&
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(host_screen->win_pre_existing != None ||
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HostX.use_fullscreen == True)) {
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*width = host_screen->win_width;
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*height = host_screen->win_height;
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return 1;
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}
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return 0;
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}
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void
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hostx_add_screen(EphyrScreenInfo screen, unsigned long win_id, int screen_num)
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{
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int index = HostX.n_screens;
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HostX.n_screens += 1;
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HostX.screens = realloc(HostX.screens,
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HostX.n_screens * sizeof(struct EphyrHostScreen));
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memset(&HostX.screens[index], 0, sizeof(struct EphyrHostScreen));
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HostX.screens[index].info = screen;
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HostX.screens[index].win_pre_existing = win_id;
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}
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void
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hostx_set_display_name(char *name)
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{
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HostX.server_dpy_name = strdup(name);
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}
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void
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hostx_set_screen_number(EphyrScreenInfo screen, int number)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
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if (host_screen) {
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host_screen->mynum = number;
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hostx_set_win_title(host_screen->info, "");
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}
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}
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void
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hostx_set_win_title(EphyrScreenInfo screen, char *extra_text)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
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if (!host_screen)
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return;
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if (ephyrTitle) {
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XStoreName(HostX.dpy, host_screen->win, ephyrTitle);
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}
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else {
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#define BUF_LEN 256
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char buf[BUF_LEN + 1];
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memset(buf, 0, BUF_LEN + 1);
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snprintf(buf, BUF_LEN, "Xephyr on %s.%d %s",
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HostX.server_dpy_name,
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host_screen->mynum, (extra_text != NULL) ? extra_text : "");
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XStoreName(HostX.dpy, host_screen->win, buf);
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}
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}
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int
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hostx_want_host_cursor(void)
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{
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return HostX.use_host_cursor;
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}
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void
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hostx_use_host_cursor(void)
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{
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HostX.use_host_cursor = True;
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}
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int
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hostx_want_preexisting_window(EphyrScreenInfo screen)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
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if (host_screen && host_screen->win_pre_existing) {
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return 1;
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}
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else {
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return 0;
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}
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}
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void
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hostx_use_fullscreen(void)
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{
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HostX.use_fullscreen = True;
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}
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int
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hostx_want_fullscreen(void)
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{
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return HostX.use_fullscreen;
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}
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static void
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hostx_set_fullscreen_hint(void)
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{
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Atom atom_WINDOW_STATE, atom_WINDOW_STATE_FULLSCREEN;
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int index;
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atom_WINDOW_STATE = XInternAtom(HostX.dpy, "_NET_WM_STATE", False);
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atom_WINDOW_STATE_FULLSCREEN
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= XInternAtom(HostX.dpy, "_NET_WM_STATE_FULLSCREEN", False);
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for (index = 0; index < HostX.n_screens; index++) {
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XChangeProperty(HostX.dpy, HostX.screens[index].win,
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atom_WINDOW_STATE, XA_ATOM, 32,
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PropModeReplace,
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(unsigned char *) &atom_WINDOW_STATE_FULLSCREEN, 1);
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}
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}
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static void
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hostx_toggle_damage_debug(void)
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{
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HostXWantDamageDebug ^= 1;
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}
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void
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hostx_handle_signal(int signum)
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{
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hostx_toggle_damage_debug();
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EPHYR_DBG("Signal caught. Damage Debug:%i\n", HostXWantDamageDebug);
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}
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void
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hostx_use_resname(char *name, int fromcmd)
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{
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ephyrResName = name;
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ephyrResNameFromCmd = fromcmd;
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}
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void
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hostx_set_title(char *title)
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{
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ephyrTitle = title;
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}
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#ifdef __SUNPRO_C
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/* prevent "Function has no return statement" error for x_io_error_handler */
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#pragma does_not_return(exit)
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#endif
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static int _X_NORETURN
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x_io_error_handler(Display * dpy)
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{
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ErrorF("Lost connection to X server: %s\n", strerror(errno));
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CloseWellKnownConnections();
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OsCleanup(1);
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exit(1);
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}
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int
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hostx_init(void)
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{
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XSetWindowAttributes attr;
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Cursor empty_cursor;
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Pixmap cursor_pxm;
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XColor col;
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int index;
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char *tmpstr;
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XClassHint *class_hint;
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attr.event_mask =
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ButtonPressMask
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| ButtonReleaseMask
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| PointerMotionMask
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| KeyPressMask
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| KeyReleaseMask
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| ExposureMask
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| StructureNotifyMask;
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EPHYR_DBG("mark");
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if ((HostX.dpy = XOpenDisplay(getenv("DISPLAY"))) == NULL) {
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fprintf(stderr, "\nXephyr cannot open host display. Is DISPLAY set?\n");
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exit(1);
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}
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XSetIOErrorHandler(x_io_error_handler);
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HostX.screen = DefaultScreen(HostX.dpy);
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HostX.winroot = RootWindow(HostX.dpy, HostX.screen);
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HostX.gc = XCreateGC(HostX.dpy, HostX.winroot, 0, NULL);
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HostX.depth = DefaultDepth(HostX.dpy, HostX.screen);
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HostX.visual = DefaultVisual(HostX.dpy, HostX.screen);
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class_hint = XAllocClassHint();
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for (index = 0; index < HostX.n_screens; index++) {
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struct EphyrHostScreen *host_screen = &HostX.screens[index];
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host_screen->server_depth = HostX.depth;
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if (host_screen->win_pre_existing != None) {
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Status result;
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XWindowAttributes prewin_attr;
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/* Get screen size from existing window */
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hostx_errors_trap();
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result = XGetWindowAttributes(HostX.dpy,
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host_screen->win_pre_existing,
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&prewin_attr);
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if (hostx_errors_untrap() || !result) {
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fprintf(stderr, "\nXephyr -parent window' does not exist!\n");
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exit(1);
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}
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host_screen->win_width = prewin_attr.width;
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host_screen->win_height = prewin_attr.height;
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host_screen->win = XCreateWindow(HostX.dpy,
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host_screen->win_pre_existing,
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0, 0,
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host_screen->win_width,
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host_screen->win_height,
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0,
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CopyFromParent,
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CopyFromParent,
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CopyFromParent,
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CWEventMask, &attr);
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}
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else {
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host_screen->win = XCreateWindow(HostX.dpy, HostX.winroot, 0, 0, 100, 100, /* will resize */
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0,
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CopyFromParent,
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CopyFromParent,
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CopyFromParent,
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CWEventMask, &attr);
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hostx_set_win_title(host_screen->info,
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"(ctrl+shift grabs mouse and keyboard)");
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if (HostX.use_fullscreen) {
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host_screen->win_width = DisplayWidth(HostX.dpy, HostX.screen);
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host_screen->win_height =
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DisplayHeight(HostX.dpy, HostX.screen);
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hostx_set_fullscreen_hint();
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}
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if (class_hint) {
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tmpstr = getenv("RESOURCE_NAME");
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if (tmpstr && (!ephyrResNameFromCmd))
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ephyrResName = tmpstr;
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class_hint->res_name = ephyrResName;
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class_hint->res_class = "Xephyr";
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XSetClassHint(hostx_get_display(), host_screen->win,
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class_hint);
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}
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}
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}
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if (class_hint)
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XFree(class_hint);
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XParseColor(HostX.dpy, DefaultColormap(HostX.dpy, HostX.screen),
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"red", &col);
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XAllocColor(HostX.dpy, DefaultColormap(HostX.dpy, HostX.screen), &col);
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XSetForeground(HostX.dpy, HostX.gc, col.pixel);
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if (!hostx_want_host_cursor()) {
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/* Ditch the cursor, we provide our 'own' */
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cursor_pxm = XCreatePixmap(HostX.dpy, HostX.winroot, 1, 1, 1);
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memset(&col, 0, sizeof(col));
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empty_cursor = XCreatePixmapCursor(HostX.dpy,
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cursor_pxm, cursor_pxm,
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&col, &col, 1, 1);
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for (index = 0; index < HostX.n_screens; index++) {
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XDefineCursor(HostX.dpy, HostX.screens[index].win, empty_cursor);
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}
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XFreePixmap(HostX.dpy, cursor_pxm);
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}
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for (index = 0; index < HostX.n_screens; index++) {
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HostX.screens[index].ximg = NULL;
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}
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/* Try to get share memory ximages for a little bit more speed */
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if (!XShmQueryExtension(HostX.dpy) || getenv("XEPHYR_NO_SHM")) {
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fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
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HostX.have_shm = False;
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}
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else {
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/* Really really check we have shm - better way ? */
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XShmSegmentInfo shminfo;
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HostX.have_shm = True;
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shminfo.shmid = shmget(IPC_PRIVATE, 1, IPC_CREAT | 0777);
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shminfo.shmaddr = shmat(shminfo.shmid, 0, 0);
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shminfo.readOnly = True;
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hostx_errors_trap();
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XShmAttach(HostX.dpy, &shminfo);
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XSync(HostX.dpy, False);
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if (hostx_errors_untrap()) {
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fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
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HostX.have_shm = False;
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}
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shmdt(shminfo.shmaddr);
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shmctl(shminfo.shmid, IPC_RMID, 0);
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}
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XFlush(HostX.dpy);
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|
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/* Setup the pause time between paints when debugging updates */
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HostX.damage_debug_msec = 20000; /* 1/50 th of a second */
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|
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if (getenv("XEPHYR_PAUSE")) {
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HostX.damage_debug_msec = strtol(getenv("XEPHYR_PAUSE"), NULL, 0);
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EPHYR_DBG("pause is %li\n", HostX.damage_debug_msec);
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}
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return 1;
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}
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|
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int
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hostx_get_depth(void)
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{
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return HostX.depth;
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}
|
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|
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int
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hostx_get_server_depth(EphyrScreenInfo screen)
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
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return host_screen ? host_screen->server_depth : 0;
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}
|
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|
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void
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hostx_set_server_depth(EphyrScreenInfo screen, int depth)
|
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{
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
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|
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if (host_screen)
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host_screen->server_depth = depth;
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}
|
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|
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int
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hostx_get_bpp(EphyrScreenInfo screen)
|
|
{
|
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struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
|
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|
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if (!host_screen)
|
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return 0;
|
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|
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if (host_depth_matches_server(host_screen))
|
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return HostX.visual->bits_per_rgb;
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else
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return host_screen->server_depth; /*XXX correct ? */
|
|
}
|
|
|
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void
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|
hostx_get_visual_masks(EphyrScreenInfo screen,
|
|
CARD32 *rmsk, CARD32 *gmsk, CARD32 *bmsk)
|
|
{
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
|
|
|
|
if (!host_screen)
|
|
return;
|
|
|
|
if (host_depth_matches_server(host_screen)) {
|
|
*rmsk = HostX.visual->red_mask;
|
|
*gmsk = HostX.visual->green_mask;
|
|
*bmsk = HostX.visual->blue_mask;
|
|
}
|
|
else if (host_screen->server_depth == 16) {
|
|
/* Assume 16bpp 565 */
|
|
*rmsk = 0xf800;
|
|
*gmsk = 0x07e0;
|
|
*bmsk = 0x001f;
|
|
}
|
|
else {
|
|
*rmsk = 0x0;
|
|
*gmsk = 0x0;
|
|
*bmsk = 0x0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
hostx_calculate_color_shift(unsigned long mask)
|
|
{
|
|
int shift = 1;
|
|
|
|
/* count # of bits in mask */
|
|
while ((mask = (mask >> 1)))
|
|
shift++;
|
|
/* cmap entry is an unsigned char so adjust it by size of that */
|
|
shift = shift - sizeof(unsigned char) * 8;
|
|
if (shift < 0)
|
|
shift = 0;
|
|
return shift;
|
|
}
|
|
|
|
void
|
|
hostx_set_cmap_entry(unsigned char idx,
|
|
unsigned char r, unsigned char g, unsigned char b)
|
|
{
|
|
/* need to calculate the shifts for RGB because server could be BGR. */
|
|
/* XXX Not sure if this is correct for 8 on 16, but this works for 8 on 24.*/
|
|
static int rshift, bshift, gshift = 0;
|
|
static int first_time = 1;
|
|
|
|
if (first_time) {
|
|
first_time = 0;
|
|
rshift = hostx_calculate_color_shift(HostX.visual->red_mask);
|
|
gshift = hostx_calculate_color_shift(HostX.visual->green_mask);
|
|
bshift = hostx_calculate_color_shift(HostX.visual->blue_mask);
|
|
}
|
|
HostX.cmap[idx] = ((r << rshift) & HostX.visual->red_mask) |
|
|
((g << gshift) & HostX.visual->green_mask) |
|
|
((b << bshift) & HostX.visual->blue_mask);
|
|
}
|
|
|
|
/**
|
|
* hostx_screen_init creates the XImage that will contain the front buffer of
|
|
* the ephyr screen, and possibly offscreen memory.
|
|
*
|
|
* @param width width of the screen
|
|
* @param height height of the screen
|
|
* @param buffer_height height of the rectangle to be allocated.
|
|
*
|
|
* hostx_screen_init() creates an XImage, using MIT-SHM if it's available.
|
|
* buffer_height can be used to create a larger offscreen buffer, which is used
|
|
* by fakexa for storing offscreen pixmap data.
|
|
*/
|
|
void *
|
|
hostx_screen_init(EphyrScreenInfo screen,
|
|
int width, int height, int buffer_height)
|
|
{
|
|
int bitmap_pad;
|
|
Bool shm_success = False;
|
|
XSizeHints *size_hints;
|
|
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
|
|
|
|
if (!host_screen) {
|
|
fprintf(stderr, "%s: Error in accessing hostx data\n", __func__);
|
|
exit(1);
|
|
}
|
|
|
|
EPHYR_DBG("host_screen=%p wxh=%dx%d, buffer_height=%d",
|
|
host_screen, width, height, buffer_height);
|
|
|
|
if (host_screen->ximg != NULL) {
|
|
/* Free up the image data if previously used
|
|
* i.ie called by server reset
|
|
*/
|
|
|
|
if (HostX.have_shm) {
|
|
XShmDetach(HostX.dpy, &host_screen->shminfo);
|
|
XDestroyImage(host_screen->ximg);
|
|
shmdt(host_screen->shminfo.shmaddr);
|
|
shmctl(host_screen->shminfo.shmid, IPC_RMID, 0);
|
|
}
|
|
else {
|
|
free(host_screen->ximg->data);
|
|
host_screen->ximg->data = NULL;
|
|
|
|
XDestroyImage(host_screen->ximg);
|
|
}
|
|
}
|
|
|
|
if (HostX.have_shm) {
|
|
host_screen->ximg =
|
|
XShmCreateImage(HostX.dpy, HostX.visual, HostX.depth, ZPixmap, NULL,
|
|
&host_screen->shminfo, width, buffer_height);
|
|
|
|
host_screen->shminfo.shmid =
|
|
shmget(IPC_PRIVATE,
|
|
host_screen->ximg->bytes_per_line * buffer_height,
|
|
IPC_CREAT | 0777);
|
|
host_screen->ximg->data = shmat(host_screen->shminfo.shmid, 0, 0);
|
|
host_screen->shminfo.shmaddr = host_screen->ximg->data;
|
|
|
|
if (host_screen->ximg->data == (char *) -1) {
|
|
EPHYR_DBG
|
|
("Can't attach SHM Segment, falling back to plain XImages");
|
|
HostX.have_shm = False;
|
|
XDestroyImage(host_screen->ximg);
|
|
shmctl(host_screen->shminfo.shmid, IPC_RMID, 0);
|
|
}
|
|
else {
|
|
EPHYR_DBG("SHM segment attached %p", host_screen->shminfo.shmaddr);
|
|
host_screen->shminfo.readOnly = False;
|
|
XShmAttach(HostX.dpy, &host_screen->shminfo);
|
|
shm_success = True;
|
|
}
|
|
}
|
|
|
|
if (!shm_success) {
|
|
bitmap_pad = (HostX.depth > 16) ? 32 : ((HostX.depth > 8) ? 16 : 8);
|
|
|
|
EPHYR_DBG("Creating image %dx%d for screen host_screen=%p\n",
|
|
width, buffer_height, host_screen);
|
|
host_screen->ximg = XCreateImage(HostX.dpy,
|
|
HostX.visual,
|
|
HostX.depth,
|
|
ZPixmap, 0, 0,
|
|
width, buffer_height, bitmap_pad, 0);
|
|
|
|
host_screen->ximg->data =
|
|
malloc(host_screen->ximg->bytes_per_line * buffer_height);
|
|
}
|
|
|
|
XResizeWindow(HostX.dpy, host_screen->win, width, height);
|
|
|
|
/* Ask the WM to keep our size static */
|
|
if (host_screen->win_pre_existing == None) {
|
|
size_hints = XAllocSizeHints();
|
|
size_hints->max_width = size_hints->min_width = width;
|
|
size_hints->max_height = size_hints->min_height = height;
|
|
size_hints->flags = PMinSize | PMaxSize;
|
|
XSetWMNormalHints(HostX.dpy, host_screen->win, size_hints);
|
|
XFree(size_hints);
|
|
}
|
|
|
|
XMapWindow(HostX.dpy, host_screen->win);
|
|
|
|
XSync(HostX.dpy, False);
|
|
|
|
host_screen->win_width = width;
|
|
host_screen->win_height = height;
|
|
|
|
if (host_depth_matches_server(host_screen)) {
|
|
EPHYR_DBG("Host matches server");
|
|
return host_screen->ximg->data;
|
|
}
|
|
else {
|
|
EPHYR_DBG("server bpp %i", host_screen->server_depth >> 3);
|
|
host_screen->fb_data =
|
|
malloc(width * buffer_height * (host_screen->server_depth >> 3));
|
|
return host_screen->fb_data;
|
|
}
|
|
}
|
|
|
|
static void hostx_paint_debug_rect(struct EphyrHostScreen *host_screen,
|
|
int x, int y, int width, int height);
|
|
|
|
void
|
|
hostx_paint_rect(EphyrScreenInfo screen,
|
|
int sx, int sy, int dx, int dy, int width, int height)
|
|
{
|
|
struct EphyrHostScreen *host_screen = host_screen_from_screen_info(screen);
|
|
|
|
EPHYR_DBG("painting in screen %d\n", host_screen->mynum);
|
|
|
|
/*
|
|
* Copy the image data updated by the shadow layer
|
|
* on to the window
|
|
*/
|
|
|
|
if (HostXWantDamageDebug) {
|
|
hostx_paint_debug_rect(host_screen, dx, dy, width, height);
|
|
}
|
|
|
|
/*
|
|
* If the depth of the ephyr server is less than that of the host,
|
|
* the kdrive fb does not point to the ximage data but to a buffer
|
|
* ( fb_data ), we shift the various bits from this onto the XImage
|
|
* so they match the host.
|
|
*
|
|
* Note, This code is pretty new ( and simple ) so may break on
|
|
* endian issues, 32 bpp host etc.
|
|
* Not sure if 8bpp case is right either.
|
|
* ... and it will be slower than the matching depth case.
|
|
*/
|
|
|
|
if (!host_depth_matches_server(host_screen)) {
|
|
int x, y, idx, bytes_per_pixel = (host_screen->server_depth >> 3);
|
|
unsigned char r, g, b;
|
|
unsigned long host_pixel;
|
|
|
|
EPHYR_DBG("Unmatched host depth host_screen=%p\n", host_screen);
|
|
for (y = sy; y < sy + height; y++)
|
|
for (x = sx; x < sx + width; x++) {
|
|
idx =
|
|
(host_screen->win_width * y * bytes_per_pixel) +
|
|
(x * bytes_per_pixel);
|
|
|
|
switch (host_screen->server_depth) {
|
|
case 16:
|
|
{
|
|
unsigned short pixel =
|
|
*(unsigned short *) (host_screen->fb_data + idx);
|
|
|
|
r = ((pixel & 0xf800) >> 8);
|
|
g = ((pixel & 0x07e0) >> 3);
|
|
b = ((pixel & 0x001f) << 3);
|
|
|
|
host_pixel = (r << 16) | (g << 8) | (b);
|
|
|
|
XPutPixel(host_screen->ximg, x, y, host_pixel);
|
|
break;
|
|
}
|
|
case 8:
|
|
{
|
|
unsigned char pixel =
|
|
*(unsigned char *) (host_screen->fb_data + idx);
|
|
XPutPixel(host_screen->ximg, x, y, HostX.cmap[pixel]);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (HostX.have_shm) {
|
|
XShmPutImage(HostX.dpy, host_screen->win,
|
|
HostX.gc, host_screen->ximg,
|
|
sx, sy, dx, dy, width, height, False);
|
|
}
|
|
else {
|
|
XPutImage(HostX.dpy, host_screen->win, HostX.gc, host_screen->ximg,
|
|
sx, sy, dx, dy, width, height);
|
|
}
|
|
|
|
XSync(HostX.dpy, False);
|
|
}
|
|
|
|
static void
|
|
hostx_paint_debug_rect(struct EphyrHostScreen *host_screen,
|
|
int x, int y, int width, int height)
|
|
{
|
|
struct timespec tspec;
|
|
|
|
tspec.tv_sec = HostX.damage_debug_msec / (1000000);
|
|
tspec.tv_nsec = (HostX.damage_debug_msec % 1000000) * 1000;
|
|
|
|
EPHYR_DBG("msec: %li tv_sec %li, tv_msec %li",
|
|
HostX.damage_debug_msec, tspec.tv_sec, tspec.tv_nsec);
|
|
|
|
/* fprintf(stderr, "Xephyr updating: %i+%i %ix%i\n", x, y, width, height); */
|
|
|
|
XFillRectangle(HostX.dpy, host_screen->win, HostX.gc, x, y, width, height);
|
|
XSync(HostX.dpy, False);
|
|
|
|
/* nanosleep seems to work better than usleep for me... */
|
|
nanosleep(&tspec, NULL);
|
|
}
|
|
|
|
void
|
|
hostx_load_keymap(void)
|
|
{
|
|
XID *keymap;
|
|
int host_width, min_keycode, max_keycode, width;
|
|
int i, j;
|
|
|
|
XDisplayKeycodes(HostX.dpy, &min_keycode, &max_keycode);
|
|
|
|
EPHYR_DBG("min: %d, max: %d", min_keycode, max_keycode);
|
|
|
|
keymap = XGetKeyboardMapping(HostX.dpy,
|
|
min_keycode,
|
|
max_keycode - min_keycode + 1, &host_width);
|
|
|
|
/* Try and copy the hosts keymap into our keymap to avoid loads
|
|
* of messing around.
|
|
*
|
|
* kdrive cannot can have more than 4 keysyms per keycode
|
|
* so we only copy at most the first 4 ( xorg has 6 per keycode, XVNC 2 )
|
|
*/
|
|
width = (host_width > 4) ? 4 : host_width;
|
|
|
|
ephyrKeySyms.map = (CARD32 *) calloc(sizeof(CARD32),
|
|
(max_keycode - min_keycode + 1) *
|
|
width);
|
|
if (!ephyrKeySyms.map)
|
|
return;
|
|
|
|
for (i = 0; i < (max_keycode - min_keycode + 1); i++)
|
|
for (j = 0; j < width; j++)
|
|
ephyrKeySyms.map[(i * width) + j] =
|
|
(CARD32) keymap[(i * host_width) + j];
|
|
|
|
EPHYR_DBG("keymap width, host:%d kdrive:%d", host_width, width);
|
|
|
|
ephyrKeySyms.minKeyCode = min_keycode;
|
|
ephyrKeySyms.maxKeyCode = max_keycode;
|
|
ephyrKeySyms.mapWidth = width;
|
|
|
|
XFree(keymap);
|
|
}
|
|
|
|
static struct EphyrHostScreen *
|
|
host_screen_from_window(Window w)
|
|
{
|
|
int index = 0;
|
|
struct EphyrHostScreen *result = NULL;
|
|
|
|
for (index = 0; index < HostX.n_screens; index++) {
|
|
if (HostX.screens[index].win == w
|
|
|| HostX.screens[index].peer_win == w
|
|
|| HostX.screens[index].win_pre_existing == w) {
|
|
result = &HostX.screens[index];
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
out:
|
|
return result;
|
|
}
|
|
|
|
int
|
|
hostx_get_event(EphyrHostXEvent * ev)
|
|
{
|
|
XEvent xev;
|
|
static int grabbed_screen = -1;
|
|
|
|
if (XPending(HostX.dpy)) {
|
|
XNextEvent(HostX.dpy, &xev);
|
|
|
|
switch (xev.type) {
|
|
case Expose:
|
|
/* Not so great event compression, but works ok */
|
|
while (XCheckTypedWindowEvent(HostX.dpy, xev.xexpose.window,
|
|
Expose, &xev));
|
|
{
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window(xev.xexpose.window);
|
|
if (host_screen) {
|
|
hostx_paint_rect(host_screen->info, 0, 0, 0, 0,
|
|
host_screen->win_width,
|
|
host_screen->win_height);
|
|
}
|
|
else {
|
|
EPHYR_LOG_ERROR("failed to get host screen\n");
|
|
ev->type = EPHYR_EV_EXPOSE;
|
|
ev->data.expose.window = xev.xexpose.window;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case MotionNotify:
|
|
{
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window(xev.xmotion.window);
|
|
|
|
ev->type = EPHYR_EV_MOUSE_MOTION;
|
|
ev->data.mouse_motion.x = xev.xmotion.x;
|
|
ev->data.mouse_motion.y = xev.xmotion.y;
|
|
ev->data.mouse_motion.window = xev.xmotion.window;
|
|
ev->data.mouse_motion.screen =
|
|
(host_screen ? host_screen->mynum : -1);
|
|
}
|
|
return 1;
|
|
|
|
case ButtonPress:
|
|
ev->type = EPHYR_EV_MOUSE_PRESS;
|
|
ev->key_state = xev.xkey.state;
|
|
/*
|
|
* This is a bit hacky. will break for button 5 ( defined as 0x10 )
|
|
* Check KD_BUTTON defines in kdrive.h
|
|
*/
|
|
ev->data.mouse_down.button_num = 1 << (xev.xbutton.button - 1);
|
|
return 1;
|
|
|
|
case ButtonRelease:
|
|
ev->type = EPHYR_EV_MOUSE_RELEASE;
|
|
ev->key_state = xev.xkey.state;
|
|
ev->data.mouse_up.button_num = 1 << (xev.xbutton.button - 1);
|
|
return 1;
|
|
|
|
case KeyPress:
|
|
{
|
|
ev->type = EPHYR_EV_KEY_PRESS;
|
|
ev->key_state = xev.xkey.state;
|
|
ev->data.key_down.scancode = xev.xkey.keycode;
|
|
return 1;
|
|
}
|
|
case KeyRelease:
|
|
|
|
if ((XKeycodeToKeysym(HostX.dpy, xev.xkey.keycode, 0) == XK_Shift_L
|
|
|| XKeycodeToKeysym(HostX.dpy, xev.xkey.keycode,
|
|
0) == XK_Shift_R)
|
|
&& (xev.xkey.state & ControlMask)) {
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window(xev.xexpose.window);
|
|
|
|
if (grabbed_screen != -1) {
|
|
XUngrabKeyboard(HostX.dpy, CurrentTime);
|
|
XUngrabPointer(HostX.dpy, CurrentTime);
|
|
grabbed_screen = -1;
|
|
hostx_set_win_title(host_screen->info,
|
|
"(ctrl+shift grabs mouse and keyboard)");
|
|
}
|
|
else {
|
|
/* Attempt grab */
|
|
if (XGrabKeyboard(HostX.dpy, host_screen->win, True,
|
|
GrabModeAsync,
|
|
GrabModeAsync, CurrentTime) == 0) {
|
|
if (XGrabPointer(HostX.dpy, host_screen->win, True,
|
|
NoEventMask,
|
|
GrabModeAsync,
|
|
GrabModeAsync,
|
|
host_screen->win, None,
|
|
CurrentTime) == 0) {
|
|
grabbed_screen = host_screen->mynum;
|
|
hostx_set_win_title
|
|
(host_screen->info,
|
|
"(ctrl+shift releases mouse and keyboard)");
|
|
}
|
|
else /* Failed pointer grabm ungrab keyboard */
|
|
XUngrabKeyboard(HostX.dpy, CurrentTime);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Still send the release event even if above has happened
|
|
* server will get confused with just an up event.
|
|
* Maybe it would be better to just block shift+ctrls getting to
|
|
* kdrive all togeather.
|
|
*/
|
|
ev->type = EPHYR_EV_KEY_RELEASE;
|
|
ev->key_state = xev.xkey.state;
|
|
ev->data.key_up.scancode = xev.xkey.keycode;
|
|
return 1;
|
|
|
|
case ConfigureNotify:
|
|
{
|
|
struct EphyrHostScreen *host_screen =
|
|
host_screen_from_window(xev.xconfigure.window);
|
|
|
|
if (host_screen && host_screen->win_pre_existing != None) {
|
|
ev->type = EPHYR_EV_CONFIGURE;
|
|
ev->data.configure.width = xev.xconfigure.width;
|
|
ev->data.configure.height = xev.xconfigure.height;
|
|
ev->data.configure.window = xev.xconfigure.window;
|
|
ev->data.configure.screen = host_screen->mynum;
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
default:
|
|
break;
|
|
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void *
|
|
hostx_get_display(void)
|
|
{
|
|
return HostX.dpy;
|
|
}
|
|
|
|
int
|
|
hostx_get_window(int a_screen_number)
|
|
{
|
|
if (a_screen_number < 0 || a_screen_number >= HostX.n_screens) {
|
|
EPHYR_LOG_ERROR("bad screen number:%d\n", a_screen_number);
|
|
return 0;
|
|
}
|
|
return HostX.screens[a_screen_number].win;
|
|
}
|
|
|
|
int
|
|
hostx_get_window_attributes(int a_window, EphyrHostWindowAttributes * a_attrs)
|
|
{
|
|
XWindowAttributes attrs;
|
|
|
|
memset(&attrs, 0, sizeof(attrs));
|
|
|
|
if (!XGetWindowAttributes(hostx_get_display(), a_window, &attrs)) {
|
|
return FALSE;
|
|
}
|
|
a_attrs->x = attrs.x;
|
|
a_attrs->y = attrs.y;
|
|
a_attrs->width = attrs.width;
|
|
a_attrs->height = attrs.height;
|
|
if (attrs.visual)
|
|
a_attrs->visualid = attrs.visual->visualid;
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
hostx_get_extension_info(const char *a_ext_name,
|
|
int *a_major_opcode,
|
|
int *a_first_event, int *a_first_error)
|
|
{
|
|
if (!a_ext_name || !a_major_opcode || !a_first_event || !a_first_error)
|
|
return 0;
|
|
if (!XQueryExtension(HostX.dpy,
|
|
a_ext_name,
|
|
a_major_opcode, a_first_event, a_first_error)) {
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
hostx_get_visuals_info(EphyrHostVisualInfo ** a_visuals, int *a_num_entries)
|
|
{
|
|
Display *dpy = hostx_get_display();
|
|
Bool is_ok = False;
|
|
XVisualInfo templ, *visuals = NULL;
|
|
EphyrHostVisualInfo *host_visuals = NULL;
|
|
int nb_items = 0, i = 0;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL(a_visuals && a_num_entries && dpy, False);
|
|
EPHYR_LOG("enter\n");
|
|
memset(&templ, 0, sizeof(templ));
|
|
visuals = XGetVisualInfo(dpy, VisualNoMask, &templ, &nb_items);
|
|
if (!visuals) {
|
|
EPHYR_LOG_ERROR("host does not advertise any visual\n");
|
|
goto out;
|
|
}
|
|
EPHYR_LOG("host advertises %d visuals\n", nb_items);
|
|
host_visuals = calloc(nb_items, sizeof(EphyrHostVisualInfo));
|
|
for (i = 0; i < nb_items; i++) {
|
|
host_visuals[i].visualid = visuals[i].visualid;
|
|
host_visuals[i].screen = visuals[i].screen;
|
|
host_visuals[i].depth = visuals[i].depth;
|
|
host_visuals[i].class = visuals[i].class;
|
|
host_visuals[i].red_mask = visuals[i].red_mask;
|
|
host_visuals[i].green_mask = visuals[i].green_mask;
|
|
host_visuals[i].blue_mask = visuals[i].blue_mask;
|
|
host_visuals[i].colormap_size = visuals[i].colormap_size;
|
|
host_visuals[i].bits_per_rgb = visuals[i].bits_per_rgb;
|
|
}
|
|
*a_visuals = host_visuals;
|
|
*a_num_entries = nb_items;
|
|
host_visuals = NULL;
|
|
|
|
is_ok = TRUE;
|
|
out:
|
|
if (visuals) {
|
|
XFree(visuals);
|
|
visuals = NULL;
|
|
}
|
|
free(host_visuals);
|
|
host_visuals = NULL;
|
|
EPHYR_LOG("leave\n");
|
|
return is_ok;
|
|
|
|
}
|
|
|
|
int
|
|
hostx_create_window(int a_screen_number,
|
|
EphyrBox * a_geometry,
|
|
int a_visual_id, int *a_host_peer /*out parameter */ )
|
|
{
|
|
Bool is_ok = FALSE;
|
|
Display *dpy = hostx_get_display();
|
|
XVisualInfo *visual_info = NULL, visual_info_templ;
|
|
int visual_mask = VisualIDMask;
|
|
Window win = None;
|
|
int nb_visuals = 0, winmask = 0;
|
|
XSetWindowAttributes attrs;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL(dpy && a_geometry, FALSE);
|
|
|
|
EPHYR_LOG("enter\n");
|
|
|
|
/*get visual */
|
|
memset(&visual_info, 0, sizeof(visual_info));
|
|
visual_info_templ.visualid = a_visual_id;
|
|
visual_info = XGetVisualInfo(dpy, visual_mask,
|
|
&visual_info_templ, &nb_visuals);
|
|
if (!visual_info) {
|
|
EPHYR_LOG_ERROR("argh, could not find a remote visual with id:%d\n",
|
|
a_visual_id);
|
|
goto out;
|
|
}
|
|
memset(&attrs, 0, sizeof(attrs));
|
|
attrs.colormap = XCreateColormap(dpy,
|
|
RootWindow(dpy,
|
|
visual_info->screen),
|
|
visual_info->visual, AllocNone);
|
|
attrs.event_mask = ButtonPressMask
|
|
| ButtonReleaseMask
|
|
| PointerMotionMask | KeyPressMask | KeyReleaseMask | ExposureMask;
|
|
winmask = CWColormap | CWEventMask;
|
|
|
|
win = XCreateWindow(dpy, hostx_get_window(a_screen_number),
|
|
a_geometry->x, a_geometry->y,
|
|
a_geometry->width, a_geometry->height, 0,
|
|
visual_info->depth, CopyFromParent,
|
|
visual_info->visual, winmask, &attrs);
|
|
if (win == None) {
|
|
EPHYR_LOG_ERROR("failed to create peer window\n");
|
|
goto out;
|
|
}
|
|
if (HostX.screens[a_screen_number].peer_win == None) {
|
|
HostX.screens[a_screen_number].peer_win = win;
|
|
}
|
|
else {
|
|
EPHYR_LOG_ERROR("multiple peer windows created for same screen\n");
|
|
}
|
|
XFlush(dpy);
|
|
XMapWindow(dpy, win);
|
|
*a_host_peer = win;
|
|
is_ok = TRUE;
|
|
out:
|
|
EPHYR_LOG("leave\n");
|
|
return is_ok;
|
|
}
|
|
|
|
int
|
|
hostx_destroy_window(int a_win)
|
|
{
|
|
Display *dpy = hostx_get_display();
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL(dpy, FALSE);
|
|
XDestroyWindow(dpy, a_win);
|
|
XFlush(dpy);
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
hostx_set_window_geometry(int a_win, EphyrBox * a_geo)
|
|
{
|
|
Display *dpy = hostx_get_display();
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL(dpy && a_geo, FALSE);
|
|
|
|
EPHYR_LOG("enter. x,y,w,h:(%d,%d,%d,%d)\n",
|
|
a_geo->x, a_geo->y, a_geo->width, a_geo->height);
|
|
|
|
XMoveWindow(dpy, a_win, a_geo->x, a_geo->y);
|
|
XResizeWindow(dpy, a_win, a_geo->width, a_geo->height);
|
|
EPHYR_LOG("leave\n");
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
hostx_set_window_bounding_rectangles(int a_window,
|
|
EphyrRect * a_rects, int a_num_rects)
|
|
{
|
|
Bool is_ok = FALSE;
|
|
Display *dpy = hostx_get_display();
|
|
int i = 0;
|
|
XRectangle *rects = NULL;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL(dpy && a_rects, FALSE);
|
|
|
|
EPHYR_LOG("enter. num rects:%d\n", a_num_rects);
|
|
|
|
rects = calloc(a_num_rects, sizeof(XRectangle));
|
|
for (i = 0; i < a_num_rects; i++) {
|
|
rects[i].x = a_rects[i].x1;
|
|
rects[i].y = a_rects[i].y1;
|
|
rects[i].width = abs(a_rects[i].x2 - a_rects[i].x1);
|
|
rects[i].height = abs(a_rects[i].y2 - a_rects[i].y1);
|
|
EPHYR_LOG("borders clipped to rect[x:%d,y:%d,w:%d,h:%d]\n",
|
|
rects[i].x, rects[i].y, rects[i].width, rects[i].height);
|
|
}
|
|
/*this aways returns 1 */
|
|
XShapeCombineRectangles(dpy, a_window, ShapeBounding, 0, 0,
|
|
rects, a_num_rects, ShapeSet, YXBanded);
|
|
is_ok = TRUE;
|
|
|
|
free(rects);
|
|
rects = NULL;
|
|
EPHYR_LOG("leave\n");
|
|
return is_ok;
|
|
}
|
|
|
|
int
|
|
hostx_set_window_clipping_rectangles(int a_window,
|
|
EphyrRect * a_rects, int a_num_rects)
|
|
{
|
|
Bool is_ok = FALSE;
|
|
Display *dpy = hostx_get_display();
|
|
int i = 0;
|
|
XRectangle *rects = NULL;
|
|
|
|
EPHYR_RETURN_VAL_IF_FAIL(dpy && a_rects, FALSE);
|
|
|
|
EPHYR_LOG("enter. num rects:%d\n", a_num_rects);
|
|
|
|
rects = calloc(a_num_rects, sizeof(XRectangle));
|
|
for (i = 0; i < a_num_rects; i++) {
|
|
rects[i].x = a_rects[i].x1;
|
|
rects[i].y = a_rects[i].y1;
|
|
rects[i].width = abs(a_rects[i].x2 - a_rects[i].x1);
|
|
rects[i].height = abs(a_rects[i].y2 - a_rects[i].y1);
|
|
EPHYR_LOG("clipped to rect[x:%d,y:%d,w:%d,h:%d]\n",
|
|
rects[i].x, rects[i].y, rects[i].width, rects[i].height);
|
|
}
|
|
/*this aways returns 1 */
|
|
XShapeCombineRectangles(dpy, a_window, ShapeClip, 0, 0,
|
|
rects, a_num_rects, ShapeSet, YXBanded);
|
|
is_ok = TRUE;
|
|
|
|
free(rects);
|
|
rects = NULL;
|
|
EPHYR_LOG("leave\n");
|
|
return is_ok;
|
|
}
|
|
|
|
int
|
|
hostx_has_xshape(void)
|
|
{
|
|
int event_base = 0, error_base = 0;
|
|
Display *dpy = hostx_get_display();
|
|
|
|
if (!XShapeQueryExtension(dpy, &event_base, &error_base)) {
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
#ifdef XF86DRI
|
|
typedef struct {
|
|
int is_valid;
|
|
int local_id;
|
|
int remote_id;
|
|
} ResourcePair;
|
|
|
|
#define RESOURCE_PEERS_SIZE 1024*10
|
|
static ResourcePair resource_peers[RESOURCE_PEERS_SIZE];
|
|
|
|
int
|
|
hostx_allocate_resource_id_peer(int a_local_resource_id,
|
|
int *a_remote_resource_id)
|
|
{
|
|
int i = 0;
|
|
ResourcePair *peer = NULL;
|
|
Display *dpy = hostx_get_display();
|
|
|
|
/*
|
|
* first make sure a resource peer
|
|
* does not exist already for
|
|
* a_local_resource_id
|
|
*/
|
|
for (i = 0; i < RESOURCE_PEERS_SIZE; i++) {
|
|
if (resource_peers[i].is_valid
|
|
&& resource_peers[i].local_id == a_local_resource_id) {
|
|
peer = &resource_peers[i];
|
|
break;
|
|
}
|
|
}
|
|
/*
|
|
* find one free peer entry, an feed it with
|
|
*/
|
|
if (!peer) {
|
|
for (i = 0; i < RESOURCE_PEERS_SIZE; i++) {
|
|
if (!resource_peers[i].is_valid) {
|
|
peer = &resource_peers[i];
|
|
break;
|
|
}
|
|
}
|
|
if (peer) {
|
|
peer->remote_id = XAllocID(dpy);
|
|
peer->local_id = a_local_resource_id;
|
|
peer->is_valid = TRUE;
|
|
}
|
|
}
|
|
if (peer) {
|
|
*a_remote_resource_id = peer->remote_id;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
hostx_get_resource_id_peer(int a_local_resource_id, int *a_remote_resource_id)
|
|
{
|
|
int i = 0;
|
|
ResourcePair *peer = NULL;
|
|
|
|
for (i = 0; i < RESOURCE_PEERS_SIZE; i++) {
|
|
if (resource_peers[i].is_valid
|
|
&& resource_peers[i].local_id == a_local_resource_id) {
|
|
peer = &resource_peers[i];
|
|
break;
|
|
}
|
|
}
|
|
if (peer) {
|
|
*a_remote_resource_id = peer->remote_id;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
hostx_has_dri(void)
|
|
{
|
|
int event_base = 0, error_base = 0;
|
|
Display *dpy = hostx_get_display();
|
|
|
|
if (!dpy)
|
|
return FALSE;
|
|
|
|
if (!XF86DRIQueryExtension(dpy, &event_base, &error_base)) {
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
hostx_has_glx(void)
|
|
{
|
|
Display *dpy = hostx_get_display();
|
|
int event_base = 0, error_base = 0;
|
|
|
|
if (!glXQueryExtension(dpy, &event_base, &error_base)) {
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
#endif /* XF86DRI */
|