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-rw-r--r--xorg-server/hw/kdrive/ephyr/hostx.c2894
1 files changed, 1447 insertions, 1447 deletions
diff --git a/xorg-server/hw/kdrive/ephyr/hostx.c b/xorg-server/hw/kdrive/ephyr/hostx.c
index 648368124..4caf4516d 100644
--- a/xorg-server/hw/kdrive/ephyr/hostx.c
+++ b/xorg-server/hw/kdrive/ephyr/hostx.c
@@ -1,1447 +1,1447 @@
-/*
- * Xephyr - A kdrive X server thats runs in a host X window.
- * Authored by Matthew Allum <mallum@o-hand.com>
- *
- * Copyright © 2004 Nokia
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Nokia not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Nokia makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <kdrive-config.h>
-#endif
-
-/*
- * including some server headers (like kdrive-config.h)
- * might define the macro _XSERVER64
- * on 64 bits machines. That macro must _NOT_ be defined for Xlib
- * client code, otherwise bad things happen.
- * So let's undef that macro if necessary.
- */
-#ifdef _XSERVER64
-#undef _XSERVER64
-#endif
-
-
-#include "hostx.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h> /* for memset */
-#include <time.h>
-
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#include <sys/time.h>
-
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/Xatom.h>
-#include <X11/keysym.h>
-#include <X11/extensions/XShm.h>
-#include <X11/extensions/shape.h>
-#ifdef XF86DRI
-#include <GL/glx.h>
-#endif /* XF86DRI */
-#include "ephyrlog.h"
-
-#ifdef XF86DRI
-extern Bool XF86DRIQueryExtension (Display *dpy,
- int *event_basep,
- int *error_basep);
-#endif
-
-/*
- * All xlib calls go here, which gets built as its own .a .
- * Mixing kdrive and xlib headers causes all sorts of types
- * to get clobbered.
- */
-
-struct EphyrHostScreen
-{
- Window win;
- Window win_pre_existing; /* Set via -parent option like xnest */
- Window peer_win; /* Used for GL; should be at most one */
- XImage *ximg;
- int win_width, win_height;
- int server_depth;
- unsigned char *fb_data; /* only used when host bpp != server bpp */
- XShmSegmentInfo shminfo;
-
- void *info; /* Pointer to the screen this is associated with */
- int mynum; /* Screen number */
-};
-
-struct EphyrHostXVars
-{
- char *server_dpy_name;
- Display *dpy;
- int screen;
- Visual *visual;
- Window winroot;
- GC gc;
- int depth;
- Bool use_host_cursor;
- Bool use_fullscreen;
- Bool have_shm;
-
- int n_screens;
- struct EphyrHostScreen *screens;
-
- long damage_debug_msec;
-
- unsigned long cmap[256];
-};
-
-/* memset ( missing> ) instead of below */
-/*static EphyrHostXVars HostX = { "?", 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};*/
-static EphyrHostXVars HostX;
-
-static int HostXWantDamageDebug = 0;
-
-extern EphyrKeySyms ephyrKeySyms;
-
-extern int monitorResolution;
-
-char *ephyrResName = NULL;
-int ephyrResNameFromCmd = 0;
-char *ephyrTitle = NULL;
-
-static void
-hostx_set_fullscreen_hint(void);
-
-/* X Error traps */
-
-static int trapped_error_code = 0;
-static int (*old_error_handler) (Display *d, XErrorEvent *e);
-
-#define host_depth_matches_server(_vars) (HostX.depth == (_vars)->server_depth)
-
-static struct EphyrHostScreen *
-host_screen_from_screen_info (EphyrScreenInfo *screen)
-{
- int i;
-
- for (i = 0 ; i < HostX.n_screens ; i++)
- {
- if ( HostX.screens[i].info == screen)
- {
- return &HostX.screens[i];
- }
- }
- return NULL;
-}
-
-static int
-error_handler(Display *display,
- XErrorEvent *error)
-{
- trapped_error_code = error->error_code;
- return 0;
-}
-
-static void
-hostx_errors_trap(void)
-{
- trapped_error_code = 0;
- old_error_handler = XSetErrorHandler(error_handler);
-}
-
-static int
-hostx_errors_untrap(void)
-{
- XSetErrorHandler(old_error_handler);
- return trapped_error_code;
-}
-
-int
-hostx_want_screen_size (EphyrScreenInfo screen, int *width, int *height )
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
-
- if (host_screen &&
- (host_screen->win_pre_existing != None ||
- HostX.use_fullscreen == True))
- {
- *width = host_screen->win_width;
- *height = host_screen->win_height;
- return 1;
- }
-
- return 0;
-}
-
-void
-hostx_add_screen (EphyrScreenInfo screen,
- unsigned long win_id,
- int screen_num)
-{
- int index = HostX.n_screens;
-
- HostX.n_screens += 1;
- HostX.screens = realloc (HostX.screens,
- HostX.n_screens * sizeof(struct EphyrHostScreen));
- memset (&HostX.screens[index], 0, sizeof (struct EphyrHostScreen));
-
- HostX.screens[index].info = screen;
- HostX.screens[index].win_pre_existing = win_id;
-}
-
-
-void
-hostx_set_display_name (char *name)
-{
- HostX.server_dpy_name = strdup (name);
-}
-
-void
-hostx_set_screen_number(EphyrScreenInfo screen, int number)
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
- if (host_screen) {
- host_screen->mynum = number;
- hostx_set_win_title (host_screen->info, "") ;
- }}
-
-void
-hostx_set_win_title (EphyrScreenInfo screen, char *extra_text)
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
-
- if (!host_screen)
- return;
-
- if (ephyrTitle) {
- XStoreName(HostX.dpy, host_screen->win, ephyrTitle);
- } else {
-#define BUF_LEN 256
- char buf[BUF_LEN+1];
-
- memset (buf, 0, BUF_LEN+1) ;
- snprintf (buf, BUF_LEN, "Xephyr on %s.%d %s",
- HostX.server_dpy_name,
- host_screen->mynum,
- (extra_text != NULL) ? extra_text : "");
-
- XStoreName (HostX.dpy, host_screen->win, buf);
- }
-}
-
-int
-hostx_want_host_cursor (void)
-{
- return HostX.use_host_cursor;
-}
-
-void
-hostx_use_host_cursor (void)
-{
- HostX.use_host_cursor = True;
-}
-
-int
-hostx_want_preexisting_window (EphyrScreenInfo screen)
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
-
- if (host_screen && host_screen->win_pre_existing)
- {
- return 1;
- }
- else
- {
- return 0;
- }
-}
-
-void
-hostx_use_fullscreen (void)
-{
- HostX.use_fullscreen = True;
-}
-
-int
-hostx_want_fullscreen (void)
-{
- return HostX.use_fullscreen;
-}
-
-static void
-hostx_set_fullscreen_hint (void)
-{
- Atom atom_WINDOW_STATE, atom_WINDOW_STATE_FULLSCREEN;
- int index;
-
- atom_WINDOW_STATE
- = XInternAtom(HostX.dpy, "_NET_WM_STATE", False);
- atom_WINDOW_STATE_FULLSCREEN
- = XInternAtom(HostX.dpy, "_NET_WM_STATE_FULLSCREEN",False);
-
- for (index = 0 ; index < HostX.n_screens ; index++)
- {
- XChangeProperty (HostX.dpy, HostX.screens[index].win,
- atom_WINDOW_STATE, XA_ATOM, 32,
- PropModeReplace,
- (unsigned char *)&atom_WINDOW_STATE_FULLSCREEN, 1);
- }
-}
-
-
-static void
-hostx_toggle_damage_debug (void)
-{
- HostXWantDamageDebug ^= 1;
-}
-
-void
-hostx_handle_signal (int signum)
-{
- hostx_toggle_damage_debug();
- EPHYR_DBG ("Signal caught. Damage Debug:%i\n",
- HostXWantDamageDebug);
-}
-
-void
-hostx_use_resname (char *name, int fromcmd)
-{
- ephyrResName = name;
- ephyrResNameFromCmd = fromcmd;
-}
-
-void
-hostx_set_title (char *title)
-{
- ephyrTitle = title;
-}
-
-int
-hostx_init (void)
-{
- XSetWindowAttributes attr;
- Cursor empty_cursor;
- Pixmap cursor_pxm;
- XColor col;
- int index;
- char *tmpstr;
- XClassHint *class_hint;
-
- attr.event_mask =
- ButtonPressMask
- |ButtonReleaseMask
- |PointerMotionMask
- |KeyPressMask
- |KeyReleaseMask
- |ExposureMask;
-
- EPHYR_DBG("mark");
-
- if ((HostX.dpy = XOpenDisplay(getenv("DISPLAY"))) == NULL)
- {
- fprintf(stderr, "\nXephyr cannot open host display. Is DISPLAY set?\n");
- exit(1);
- }
-
- HostX.screen = DefaultScreen(HostX.dpy);
- HostX.winroot = RootWindow(HostX.dpy, HostX.screen);
- HostX.gc = XCreateGC(HostX.dpy, HostX.winroot, 0, NULL);
- HostX.depth = DefaultDepth(HostX.dpy, HostX.screen);
- HostX.visual = DefaultVisual(HostX.dpy, HostX.screen);
-
- class_hint = XAllocClassHint();
-
- for (index = 0 ; index < HostX.n_screens ; index++)
- {
- struct EphyrHostScreen *host_screen = &HostX.screens[index];
-
- host_screen->server_depth = HostX.depth;
- if (host_screen->win_pre_existing != None)
- {
- Status result;
- XWindowAttributes prewin_attr;
-
- /* Get screen size from existing window */
-
- hostx_errors_trap();
-
- result = XGetWindowAttributes (HostX.dpy,
- host_screen->win_pre_existing,
- &prewin_attr);
-
-
- if (hostx_errors_untrap() || !result)
- {
- fprintf (stderr, "\nXephyr -parent window' does not exist!\n");
- exit (1);
- }
-
- host_screen->win_width = prewin_attr.width;
- host_screen->win_height = prewin_attr.height;
-
- host_screen->win = XCreateWindow (HostX.dpy,
- host_screen->win_pre_existing,
- 0,0,
- host_screen->win_width,
- host_screen->win_height,
- 0,
- CopyFromParent,
- CopyFromParent,
- CopyFromParent,
- CWEventMask,
- &attr);
- }
- else
- {
- host_screen->win = XCreateWindow (HostX.dpy,
- HostX.winroot,
- 0,0,100,100, /* will resize */
- 0,
- CopyFromParent,
- CopyFromParent,
- CopyFromParent,
- CWEventMask,
- &attr);
-
- hostx_set_win_title (host_screen->info,
- "(ctrl+shift grabs mouse and keyboard)");
-
- if (HostX.use_fullscreen)
- {
- host_screen->win_width = DisplayWidth(HostX.dpy, HostX.screen);
- host_screen->win_height = DisplayHeight(HostX.dpy, HostX.screen);
-
- hostx_set_fullscreen_hint();
- }
-
- if (class_hint)
- {
- tmpstr = getenv("RESOURCE_NAME");
- if (tmpstr && (!ephyrResNameFromCmd))
- ephyrResName = tmpstr;
- class_hint->res_name = ephyrResName;
- class_hint->res_class = "Xephyr";
- XSetClassHint(hostx_get_display(), host_screen->win, class_hint);
-
- }
-
- }
- }
-
- if (class_hint)
- XFree(class_hint);
-
- XParseColor (HostX.dpy, DefaultColormap (HostX.dpy,HostX.screen),
- "red", &col);
- XAllocColor (HostX.dpy, DefaultColormap (HostX.dpy, HostX.screen),
- &col);
- XSetForeground (HostX.dpy, HostX.gc, col.pixel);
-
- if (!hostx_want_host_cursor ())
- {
- /* Ditch the cursor, we provide our 'own' */
- cursor_pxm = XCreatePixmap (HostX.dpy, HostX.winroot, 1, 1, 1);
- memset (&col, 0, sizeof (col));
- empty_cursor = XCreatePixmapCursor (HostX.dpy,
- cursor_pxm, cursor_pxm,
- &col, &col, 1, 1);
- for ( index = 0 ; index < HostX.n_screens ; index++ )
- {
- XDefineCursor (HostX.dpy,
- HostX.screens[index].win,
- empty_cursor);
- }
- XFreePixmap (HostX.dpy, cursor_pxm);
- }
-
- for (index = 0 ; index < HostX.n_screens ; index++)
- {
- HostX.screens[index].ximg = NULL;
- }
- /* Try to get share memory ximages for a little bit more speed */
-
- if (!XShmQueryExtension(HostX.dpy) || getenv("XEPHYR_NO_SHM"))
- {
- fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
- HostX.have_shm = False;
- }
- else
- {
- /* Really really check we have shm - better way ?*/
- XShmSegmentInfo shminfo;
-
- HostX.have_shm = True;
-
- shminfo.shmid=shmget(IPC_PRIVATE, 1, IPC_CREAT|0777);
- shminfo.shmaddr=shmat(shminfo.shmid,0,0);
- shminfo.readOnly=True;
-
- hostx_errors_trap();
-
- XShmAttach(HostX.dpy, &shminfo);
- XSync(HostX.dpy, False);
-
- if (hostx_errors_untrap())
- {
- fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
- HostX.have_shm = False;
- }
-
- shmdt(shminfo.shmaddr);
- shmctl(shminfo.shmid, IPC_RMID, 0);
-}
-
- XFlush(HostX.dpy);
-
- /* Setup the pause time between paints when debugging updates */
-
- HostX.damage_debug_msec = 20000; /* 1/50 th of a second */
-
- if (getenv ("XEPHYR_PAUSE"))
- {
- HostX.damage_debug_msec = strtol (getenv ("XEPHYR_PAUSE"), NULL, 0);
- EPHYR_DBG ("pause is %li\n", HostX.damage_debug_msec);
- }
-
- return 1;
-}
-
-int
-hostx_get_depth (void)
-{
- return HostX.depth;
-}
-
-int
-hostx_get_server_depth (EphyrScreenInfo screen)
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
-
- return host_screen ? host_screen->server_depth : 0;
-}
-
-void
-hostx_set_server_depth (EphyrScreenInfo screen, int depth)
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
-
- if (host_screen)
- host_screen->server_depth = depth;
-}
-
-int
-hostx_get_bpp (EphyrScreenInfo screen)
-{
- struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
-
- if (!host_screen)
- return 0;
-
- if (host_depth_matches_server (host_screen))
- return HostX.visual->bits_per_rgb;
- else
- return host_screen->server_depth; /*XXX correct ?*/
-}
-
-void
-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 */
- 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)
- {
- 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;
-
- 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 */
+/*
+ * Xephyr - A kdrive X server thats runs in a host X window.
+ * Authored by Matthew Allum <mallum@o-hand.com>
+ *
+ * Copyright © 2004 Nokia
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Nokia not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Nokia makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <kdrive-config.h>
+#endif
+
+/*
+ * including some server headers (like kdrive-config.h)
+ * might define the macro _XSERVER64
+ * on 64 bits machines. That macro must _NOT_ be defined for Xlib
+ * client code, otherwise bad things happen.
+ * So let's undef that macro if necessary.
+ */
+#ifdef _XSERVER64
+#undef _XSERVER64
+#endif
+
+
+#include "hostx.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h> /* for memset */
+#include <time.h>
+
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/time.h>
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#include <X11/keysym.h>
+#include <X11/extensions/XShm.h>
+#include <X11/extensions/shape.h>
+#ifdef XF86DRI
+#include <GL/glx.h>
+#endif /* XF86DRI */
+#include "ephyrlog.h"
+
+#ifdef XF86DRI
+extern Bool XF86DRIQueryExtension (Display *dpy,
+ int *event_basep,
+ int *error_basep);
+#endif
+
+/*
+ * All xlib calls go here, which gets built as its own .a .
+ * Mixing kdrive and xlib headers causes all sorts of types
+ * to get clobbered.
+ */
+
+struct EphyrHostScreen
+{
+ Window win;
+ Window win_pre_existing; /* Set via -parent option like xnest */
+ Window peer_win; /* Used for GL; should be at most one */
+ XImage *ximg;
+ int win_width, win_height;
+ int server_depth;
+ unsigned char *fb_data; /* only used when host bpp != server bpp */
+ XShmSegmentInfo shminfo;
+
+ void *info; /* Pointer to the screen this is associated with */
+ int mynum; /* Screen number */
+};
+
+struct EphyrHostXVars
+{
+ char *server_dpy_name;
+ Display *dpy;
+ int screen;
+ Visual *visual;
+ Window winroot;
+ GC gc;
+ int depth;
+ Bool use_host_cursor;
+ Bool use_fullscreen;
+ Bool have_shm;
+
+ int n_screens;
+ struct EphyrHostScreen *screens;
+
+ long damage_debug_msec;
+
+ unsigned long cmap[256];
+};
+
+/* memset ( missing> ) instead of below */
+/*static EphyrHostXVars HostX = { "?", 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};*/
+static EphyrHostXVars HostX;
+
+static int HostXWantDamageDebug = 0;
+
+extern EphyrKeySyms ephyrKeySyms;
+
+extern int monitorResolution;
+
+char *ephyrResName = NULL;
+int ephyrResNameFromCmd = 0;
+char *ephyrTitle = NULL;
+
+static void
+hostx_set_fullscreen_hint(void);
+
+/* X Error traps */
+
+static int trapped_error_code = 0;
+static int (*old_error_handler) (Display *d, XErrorEvent *e);
+
+#define host_depth_matches_server(_vars) (HostX.depth == (_vars)->server_depth)
+
+static struct EphyrHostScreen *
+host_screen_from_screen_info (EphyrScreenInfo *screen)
+{
+ int i;
+
+ for (i = 0 ; i < HostX.n_screens ; i++)
+ {
+ if ( HostX.screens[i].info == screen)
+ {
+ return &HostX.screens[i];
+ }
+ }
+ return NULL;
+}
+
+static int
+error_handler(Display *display,
+ XErrorEvent *error)
+{
+ trapped_error_code = error->error_code;
+ return 0;
+}
+
+static void
+hostx_errors_trap(void)
+{
+ trapped_error_code = 0;
+ old_error_handler = XSetErrorHandler(error_handler);
+}
+
+static int
+hostx_errors_untrap(void)
+{
+ XSetErrorHandler(old_error_handler);
+ return trapped_error_code;
+}
+
+int
+hostx_want_screen_size (EphyrScreenInfo screen, int *width, int *height )
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+
+ if (host_screen &&
+ (host_screen->win_pre_existing != None ||
+ HostX.use_fullscreen == True))
+ {
+ *width = host_screen->win_width;
+ *height = host_screen->win_height;
+ return 1;
+ }
+
+ return 0;
+}
+
+void
+hostx_add_screen (EphyrScreenInfo screen,
+ unsigned long win_id,
+ int screen_num)
+{
+ int index = HostX.n_screens;
+
+ HostX.n_screens += 1;
+ HostX.screens = realloc (HostX.screens,
+ HostX.n_screens * sizeof(struct EphyrHostScreen));
+ memset (&HostX.screens[index], 0, sizeof (struct EphyrHostScreen));
+
+ HostX.screens[index].info = screen;
+ HostX.screens[index].win_pre_existing = win_id;
+}
+
+
+void
+hostx_set_display_name (char *name)
+{
+ HostX.server_dpy_name = strdup (name);
+}
+
+void
+hostx_set_screen_number(EphyrScreenInfo screen, int number)
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+ if (host_screen) {
+ host_screen->mynum = number;
+ hostx_set_win_title (host_screen->info, "") ;
+ }}
+
+void
+hostx_set_win_title (EphyrScreenInfo screen, char *extra_text)
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+
+ if (!host_screen)
+ return;
+
+ if (ephyrTitle) {
+ XStoreName(HostX.dpy, host_screen->win, ephyrTitle);
+ } else {
+#define BUF_LEN 256
+ char buf[BUF_LEN+1];
+
+ memset (buf, 0, BUF_LEN+1) ;
+ snprintf (buf, BUF_LEN, "Xephyr on %s.%d %s",
+ HostX.server_dpy_name,
+ host_screen->mynum,
+ (extra_text != NULL) ? extra_text : "");
+
+ XStoreName (HostX.dpy, host_screen->win, buf);
+ }
+}
+
+int
+hostx_want_host_cursor (void)
+{
+ return HostX.use_host_cursor;
+}
+
+void
+hostx_use_host_cursor (void)
+{
+ HostX.use_host_cursor = True;
+}
+
+int
+hostx_want_preexisting_window (EphyrScreenInfo screen)
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+
+ if (host_screen && host_screen->win_pre_existing)
+ {
+ return 1;
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+void
+hostx_use_fullscreen (void)
+{
+ HostX.use_fullscreen = True;
+}
+
+int
+hostx_want_fullscreen (void)
+{
+ return HostX.use_fullscreen;
+}
+
+static void
+hostx_set_fullscreen_hint (void)
+{
+ Atom atom_WINDOW_STATE, atom_WINDOW_STATE_FULLSCREEN;
+ int index;
+
+ atom_WINDOW_STATE
+ = XInternAtom(HostX.dpy, "_NET_WM_STATE", False);
+ atom_WINDOW_STATE_FULLSCREEN
+ = XInternAtom(HostX.dpy, "_NET_WM_STATE_FULLSCREEN",False);
+
+ for (index = 0 ; index < HostX.n_screens ; index++)
+ {
+ XChangeProperty (HostX.dpy, HostX.screens[index].win,
+ atom_WINDOW_STATE, XA_ATOM, 32,
+ PropModeReplace,
+ (unsigned char *)&atom_WINDOW_STATE_FULLSCREEN, 1);
+ }
+}
+
+
+static void
+hostx_toggle_damage_debug (void)
+{
+ HostXWantDamageDebug ^= 1;
+}
+
+void
+hostx_handle_signal (int signum)
+{
+ hostx_toggle_damage_debug();
+ EPHYR_DBG ("Signal caught. Damage Debug:%i\n",
+ HostXWantDamageDebug);
+}
+
+void
+hostx_use_resname (char *name, int fromcmd)
+{
+ ephyrResName = name;
+ ephyrResNameFromCmd = fromcmd;
+}
+
+void
+hostx_set_title (char *title)
+{
+ ephyrTitle = title;
+}
+
+int
+hostx_init (void)
+{
+ XSetWindowAttributes attr;
+ Cursor empty_cursor;
+ Pixmap cursor_pxm;
+ XColor col;
+ int index;
+ char *tmpstr;
+ XClassHint *class_hint;
+
+ attr.event_mask =
+ ButtonPressMask
+ |ButtonReleaseMask
+ |PointerMotionMask
+ |KeyPressMask
+ |KeyReleaseMask
+ |ExposureMask;
+
+ EPHYR_DBG("mark");
+
+ if ((HostX.dpy = XOpenDisplay(getenv("DISPLAY"))) == NULL)
+ {
+ fprintf(stderr, "\nXephyr cannot open host display. Is DISPLAY set?\n");
+ exit(1);
+ }
+
+ HostX.screen = DefaultScreen(HostX.dpy);
+ HostX.winroot = RootWindow(HostX.dpy, HostX.screen);
+ HostX.gc = XCreateGC(HostX.dpy, HostX.winroot, 0, NULL);
+ HostX.depth = DefaultDepth(HostX.dpy, HostX.screen);
+ HostX.visual = DefaultVisual(HostX.dpy, HostX.screen);
+
+ class_hint = XAllocClassHint();
+
+ for (index = 0 ; index < HostX.n_screens ; index++)
+ {
+ struct EphyrHostScreen *host_screen = &HostX.screens[index];
+
+ host_screen->server_depth = HostX.depth;
+ if (host_screen->win_pre_existing != None)
+ {
+ Status result;
+ XWindowAttributes prewin_attr;
+
+ /* Get screen size from existing window */
+
+ hostx_errors_trap();
+
+ result = XGetWindowAttributes (HostX.dpy,
+ host_screen->win_pre_existing,
+ &prewin_attr);
+
+
+ if (hostx_errors_untrap() || !result)
+ {
+ fprintf (stderr, "\nXephyr -parent window' does not exist!\n");
+ exit (1);
+ }
+
+ host_screen->win_width = prewin_attr.width;
+ host_screen->win_height = prewin_attr.height;
+
+ host_screen->win = XCreateWindow (HostX.dpy,
+ host_screen->win_pre_existing,
+ 0,0,
+ host_screen->win_width,
+ host_screen->win_height,
+ 0,
+ CopyFromParent,
+ CopyFromParent,
+ CopyFromParent,
+ CWEventMask,
+ &attr);
+ }
+ else
+ {
+ host_screen->win = XCreateWindow (HostX.dpy,
+ HostX.winroot,
+ 0,0,100,100, /* will resize */
+ 0,
+ CopyFromParent,
+ CopyFromParent,
+ CopyFromParent,
+ CWEventMask,
+ &attr);
+
+ hostx_set_win_title (host_screen->info,
+ "(ctrl+shift grabs mouse and keyboard)");
+
+ if (HostX.use_fullscreen)
+ {
+ host_screen->win_width = DisplayWidth(HostX.dpy, HostX.screen);
+ host_screen->win_height = DisplayHeight(HostX.dpy, HostX.screen);
+
+ hostx_set_fullscreen_hint();
+ }
+
+ if (class_hint)
+ {
+ tmpstr = getenv("RESOURCE_NAME");
+ if (tmpstr && (!ephyrResNameFromCmd))
+ ephyrResName = tmpstr;
+ class_hint->res_name = ephyrResName;
+ class_hint->res_class = "Xephyr";
+ XSetClassHint(hostx_get_display(), host_screen->win, class_hint);
+
+ }
+
+ }
+ }
+
+ if (class_hint)
+ XFree(class_hint);
+
+ XParseColor (HostX.dpy, DefaultColormap (HostX.dpy,HostX.screen),
+ "red", &col);
+ XAllocColor (HostX.dpy, DefaultColormap (HostX.dpy, HostX.screen),
+ &col);
+ XSetForeground (HostX.dpy, HostX.gc, col.pixel);
+
+ if (!hostx_want_host_cursor ())
+ {
+ /* Ditch the cursor, we provide our 'own' */
+ cursor_pxm = XCreatePixmap (HostX.dpy, HostX.winroot, 1, 1, 1);
+ memset (&col, 0, sizeof (col));
+ empty_cursor = XCreatePixmapCursor (HostX.dpy,
+ cursor_pxm, cursor_pxm,
+ &col, &col, 1, 1);
+ for ( index = 0 ; index < HostX.n_screens ; index++ )
+ {
+ XDefineCursor (HostX.dpy,
+ HostX.screens[index].win,
+ empty_cursor);
+ }
+ XFreePixmap (HostX.dpy, cursor_pxm);
+ }
+
+ for (index = 0 ; index < HostX.n_screens ; index++)
+ {
+ HostX.screens[index].ximg = NULL;
+ }
+ /* Try to get share memory ximages for a little bit more speed */
+
+ if (!XShmQueryExtension(HostX.dpy) || getenv("XEPHYR_NO_SHM"))
+ {
+ fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
+ HostX.have_shm = False;
+ }
+ else
+ {
+ /* Really really check we have shm - better way ?*/
+ XShmSegmentInfo shminfo;
+
+ HostX.have_shm = True;
+
+ shminfo.shmid=shmget(IPC_PRIVATE, 1, IPC_CREAT|0777);
+ shminfo.shmaddr=shmat(shminfo.shmid,0,0);
+ shminfo.readOnly=True;
+
+ hostx_errors_trap();
+
+ XShmAttach(HostX.dpy, &shminfo);
+ XSync(HostX.dpy, False);
+
+ if (hostx_errors_untrap())
+ {
+ fprintf(stderr, "\nXephyr unable to use SHM XImages\n");
+ HostX.have_shm = False;
+ }
+
+ shmdt(shminfo.shmaddr);
+ shmctl(shminfo.shmid, IPC_RMID, 0);
+}
+
+ XFlush(HostX.dpy);
+
+ /* Setup the pause time between paints when debugging updates */
+
+ HostX.damage_debug_msec = 20000; /* 1/50 th of a second */
+
+ if (getenv ("XEPHYR_PAUSE"))
+ {
+ HostX.damage_debug_msec = strtol (getenv ("XEPHYR_PAUSE"), NULL, 0);
+ EPHYR_DBG ("pause is %li\n", HostX.damage_debug_msec);
+ }
+
+ return 1;
+}
+
+int
+hostx_get_depth (void)
+{
+ return HostX.depth;
+}
+
+int
+hostx_get_server_depth (EphyrScreenInfo screen)
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+
+ return host_screen ? host_screen->server_depth : 0;
+}
+
+void
+hostx_set_server_depth (EphyrScreenInfo screen, int depth)
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+
+ if (host_screen)
+ host_screen->server_depth = depth;
+}
+
+int
+hostx_get_bpp (EphyrScreenInfo screen)
+{
+ struct EphyrHostScreen *host_screen = host_screen_from_screen_info (screen);
+
+ if (!host_screen)
+ return 0;
+
+ if (host_depth_matches_server (host_screen))
+ return HostX.visual->bits_per_rgb;
+ else
+ return host_screen->server_depth; /*XXX correct ?*/
+}
+
+void
+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 */
+ 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)
+ {
+ 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;
+
+ 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 */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 01:58:10 +0000