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/*
* $Id$
*
* Copyright © 2003 Keith Packard
*
* 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD 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.
*/
/* Modified by Matthew Hawn. I don't know what to say here so follow what it
says above. Not that I can really do anything about it
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
#include <X11/extensions/Xrender.h>
#if COMPOSITE_MAJOR > 0 || COMPOSITE_MINOR >= 2
#define HAS_NAME_WINDOW_PIXMAP 1
#endif
#define CAN_DO_USABLE 0
typedef struct _ignore {
struct _ignore *next;
unsigned long sequence;
} ignore;
typedef struct _win {
struct _win *next;
Window id;
#if HAS_NAME_WINDOW_PIXMAP
Pixmap pixmap;
#endif
XWindowAttributes a;
#if CAN_DO_USABLE
Bool usable; /* mapped and all damaged at one point */
XRectangle damage_bounds; /* bounds of damage */
#endif
int mode;
int damaged;
Damage damage;
Picture picture;
Picture alphaPict;
Picture shadowPict;
XserverRegion borderSize;
XserverRegion extents;
Picture shadow;
int shadow_dx;
int shadow_dy;
int shadow_width;
int shadow_height;
unsigned int opacity;
Atom windowType;
unsigned long damage_sequence; /* sequence when damage was created */
/* for drawing translucent windows */
XserverRegion borderClip;
struct _win *prev_trans;
} win;
typedef struct _conv {
int size;
double *data;
} conv;
typedef struct _fade {
struct _fade *next;
win *w;
double cur;
double finish;
double step;
void (*callback) (Display *dpy, win *w, Bool gone);
Display *dpy;
Bool gone;
} fade;
win *list;
fade *fades;
Display *dpy;
int scr;
Window root;
Picture rootPicture;
Picture rootBuffer;
Picture blackPicture;
Picture transBlackPicture;
Picture rootTile;
XserverRegion allDamage;
Bool clipChanged;
#if HAS_NAME_WINDOW_PIXMAP
Bool hasNamePixmap;
#endif
int root_height, root_width;
ignore *ignore_head, **ignore_tail = &ignore_head;
int xfixes_event, xfixes_error;
int damage_event, damage_error;
int composite_event, composite_error;
int render_event, render_error;
Bool synchronize;
int composite_opcode;
/* find these once and be done with it */
Atom opacityAtom;
Atom winTypeAtom;
Atom winDesktopAtom;
Atom winDockAtom;
Atom winToolbarAtom;
Atom winMenuAtom;
Atom winUtilAtom;
Atom winSplashAtom;
Atom winDialogAtom;
Atom winNormalAtom;
/* opacity property name; sometime soon I'll write up an EWMH spec for it */
#define OPACITY_PROP "_NET_WM_WINDOW_OPACITY"
#define TRANSLUCENT 0xe0000000
#define OPAQUE 0xffffffff
conv *gaussianMap;
#define WINDOW_SOLID 0
#define WINDOW_TRANS 1
#define WINDOW_ARGB 2
#define TRANS_OPACITY 0.75
#define DEBUG_REPAINT 0
#define DEBUG_EVENTS 0
#define MONITOR_REPAINT 0
#define SHADOWS 1
#define SHARP_SHADOW 0
typedef enum _compMode {
CompSimple, /* looks like a regular X server */
CompServerShadows, /* use window alpha for shadow; sharp, but precise */
CompClientShadows, /* use window extents for shadow, blurred */
} CompMode;
static void
determine_mode(Display *dpy, win *w);
static double
get_opacity_percent(Display *dpy, win *w, double def);
static XserverRegion
win_extents (Display *dpy, win *w);
CompMode compMode = CompSimple;
int shadowRadius = 12;
int shadowOffsetX = -15;
int shadowOffsetY = -15;
double shadowOpacity = .75;
double fade_in_step = 0.028;
double fade_out_step = 0.03;
int fade_delta = 10;
int fade_time = 0;
Bool fadeWindows = False;
Bool excludeDockShadows = False;
Bool fadeTrans = False;
Bool autoRedirect = False;
/* For shadow precomputation */
int Gsize = -1;
unsigned char *shadowCorner = NULL;
unsigned char *shadowTop = NULL;
int
get_time_in_milliseconds ()
{
struct timeval tv;
gettimeofday (&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
fade *
find_fade (win *w)
{
fade *f;
for (f = fades; f; f = f->next)
{
if (f->w == w)
return f;
}
return 0;
}
void
dequeue_fade (Display *dpy, fade *f)
{
fade **prev;
for (prev = &fades; *prev; prev = &(*prev)->next)
if (*prev == f)
{
*prev = f->next;
if (f->callback)
(*f->callback) (dpy, f->w, f->gone);
free (f);
break;
}
}
void
cleanup_fade (Display *dpy, win *w)
{
fade *f = find_fade (w);
if (f)
dequeue_fade (dpy, f);
}
void
enqueue_fade (Display *dpy, fade *f)
{
if (!fades)
fade_time = get_time_in_milliseconds () + fade_delta;
f->next = fades;
fades = f;
}
static void
set_fade (Display *dpy, win *w, double start, double finish, double step,
void (*callback) (Display *dpy, win *w, Bool gone),
Bool gone, Bool exec_callback, Bool override)
{
fade *f;
f = find_fade (w);
if (!f)
{
f = malloc (sizeof (fade));
f->next = 0;
f->w = w;
f->cur = start;
enqueue_fade (dpy, f);
}
else if(!override)
return;
else
{
if (exec_callback)
if (f->callback)
(*f->callback)(dpy, f->w, f->gone);
}
if (finish < 0)
finish = 0;
if (finish > 1)
finish = 1;
f->finish = finish;
if (f->cur < finish)
f->step = step;
else if (f->cur > finish)
f->step = -step;
f->callback = callback;
f->gone = gone;
w->opacity = f->cur * OPAQUE;
#if 0
printf ("set_fade start %g step %g\n", f->cur, f->step);
#endif
determine_mode (dpy, w);
if (w->shadow)
{
XRenderFreePicture (dpy, w->shadow);
w->shadow = None;
w->extents = win_extents (dpy, w);
}
}
int
fade_timeout (void)
{
int now;
int delta;
if (!fades)
return -1;
now = get_time_in_milliseconds();
delta = fade_time - now;
if (delta < 0)
delta = 0;
/* printf ("timeout %d\n", delta); */
return delta;
}
void
run_fades (Display *dpy)
{
int now = get_time_in_milliseconds();
fade *f, *next;
int steps;
Bool need_dequeue;
#if 0
printf ("run fades\n");
#endif
if (fade_time - now > 0)
return;
steps = 1 + (now - fade_time) / fade_delta;
for (next = fades; f = next; )
{
win *w = f->w;
next = f->next;
f->cur += f->step * steps;
if (f->cur >= 1)
f->cur = 1;
else if (f->cur < 0)
f->cur = 0;
#if 0
printf ("opacity now %g\n", f->cur);
#endif
w->opacity = f->cur * OPAQUE;
need_dequeue = False;
if (f->step > 0)
{
if (f->cur >= f->finish)
{
w->opacity = f->finish*OPAQUE;
need_dequeue = True;
}
}
else
{
if (f->cur <= f->finish)
{
w->opacity = f->finish*OPAQUE;
need_dequeue = True;
}
}
determine_mode (dpy, w);
if (w->shadow)
{
XRenderFreePicture (dpy, w->shadow);
w->shadow = None;
w->extents = win_extents(dpy, w);
}
/* Must do this last as it might destroy f->w in callbacks */
if (need_dequeue)
dequeue_fade (dpy, f);
}
fade_time = now + fade_delta;
}
static double
gaussian (double r, double x, double y)
{
return ((1 / (sqrt (2 * M_PI * r))) *
exp ((- (x * x + y * y)) / (2 * r * r)));
}
static conv *
make_gaussian_map (Display *dpy, double r)
{
conv *c;
int size = ((int) ceil ((r * 3)) + 1) & ~1;
int center = size / 2;
int x, y;
double t;
double g;
c = malloc (sizeof (conv) + size * size * sizeof (double));
c->size = size;
c->data = (double *) (c + 1);
t = 0.0;
for (y = 0; y < size; y++)
for (x = 0; x < size; x++)
{
g = gaussian (r, (double) (x - center), (double) (y - center));
t += g;
c->data[y * size + x] = g;
}
/* printf ("gaussian total %f\n", t); */
for (y = 0; y < size; y++)
for (x = 0; x < size; x++)
{
c->data[y*size + x] /= t;
}
return c;
}
/*
* A picture will help
*
* -center 0 width width+center
* -center +-----+-------------------+-----+
* | | | |
* | | | |
* 0 +-----+-------------------+-----+
* | | | |
* | | | |
* | | | |
* height +-----+-------------------+-----+
* | | | |
* height+ | | | |
* center +-----+-------------------+-----+
*/
static unsigned char
sum_gaussian (conv *map, double opacity, int x, int y, int width, int height)
{
int fx, fy;
double *g_data;
double *g_line = map->data;
int g_size = map->size;
int center = g_size / 2;
int fx_start, fx_end;
int fy_start, fy_end;
double v;
/*
* Compute set of filter values which are "in range",
* that's the set with:
* 0 <= x + (fx-center) && x + (fx-center) < width &&
* 0 <= y + (fy-center) && y + (fy-center) < height
*
* 0 <= x + (fx - center) x + fx - center < width
* center - x <= fx fx < width + center - x
*/
fx_start = center - x;
if (fx_start < 0)
fx_start = 0;
fx_end = width + center - x;
if (fx_end > g_size)
fx_end = g_size;
fy_start = center - y;
if (fy_start < 0)
fy_start = 0;
fy_end = height + center - y;
if (fy_end > g_size)
fy_end = g_size;
g_line = g_line + fy_start * g_size + fx_start;
v = 0;
for (fy = fy_start; fy < fy_end; fy++)
{
g_data = g_line;
g_line += g_size;
for (fx = fx_start; fx < fx_end; fx++)
v += *g_data++;
}
if (v > 1)
v = 1;
return ((unsigned char) (v * opacity * 255.0));
}
/* precompute shadow corners and sides to save time for large windows */
static void
presum_gaussian (conv *map)
{
int center = map->size/2;
int opacity, x, y;
Gsize = map->size;
if (shadowCorner)
free ((void *)shadowCorner);
if (shadowTop)
free ((void *)shadowTop);
shadowCorner = (unsigned char *)(malloc ((Gsize + 1) * (Gsize + 1) * 26));
shadowTop = (unsigned char *)(malloc ((Gsize + 1) * 26));
for (x = 0; x <= Gsize; x++)
{
shadowTop[25 * (Gsize + 1) + x] = sum_gaussian (map, 1, x - center, center, Gsize * 2, Gsize * 2);
for(opacity = 0; opacity < 25; opacity++)
shadowTop[opacity * (Gsize + 1) + x] = shadowTop[25 * (Gsize + 1) + x] * opacity / 25;
for(y = 0; y <= x; y++)
{
shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x]
= sum_gaussian (map, 1, x - center, y - center, Gsize * 2, Gsize * 2);
shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + x * (Gsize + 1) + y]
= shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x];
for(opacity = 0; opacity < 25; opacity++)
shadowCorner[opacity * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x]
= shadowCorner[opacity * (Gsize + 1) * (Gsize + 1) + x * (Gsize + 1) + y]
= shadowCorner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x] * opacity / 25;
}
}
}
static XImage *
make_shadow (Display *dpy, double opacity, int width, int height)
{
XImage *ximage;
unsigned char *data;
int gsize = gaussianMap->size;
int ylimit, xlimit;
int swidth = width + gsize;
int sheight = height + gsize;
int center = gsize / 2;
int x, y;
unsigned char d;
int x_diff;
int opacity_int = (int)(opacity * 25);
data = malloc (swidth * sheight * sizeof (unsigned char));
if (!data)
return 0;
ximage = XCreateImage (dpy,
DefaultVisual(dpy, DefaultScreen(dpy)),
8,
ZPixmap,
0,
(char *) data,
swidth, sheight, 8, swidth * sizeof (unsigned char));
if (!ximage)
{
free (data);
return 0;
}
/*
* Build the gaussian in sections
*/
/*
* center (fill the complete data array)
*/
if (Gsize > 0)
d = shadowTop[opacity_int * (Gsize + 1) + Gsize];
else
d = sum_gaussian (gaussianMap, opacity, center, center, width, height);
memset(data, d, sheight * swidth);
/*
* corners
*/
ylimit = gsize;
if (ylimit > sheight / 2)
ylimit = (sheight + 1) / 2;
xlimit = gsize;
if (xlimit > swidth / 2)
xlimit = (swidth + 1) / 2;
for (y = 0; y < ylimit; y++)
for (x = 0; x < xlimit; x++)
{
if (xlimit == Gsize && ylimit == Gsize)
d = shadowCorner[opacity_int * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x];
else
d = sum_gaussian (gaussianMap, opacity, x - center, y - center, width, height);
data[y * swidth + x] = d;
data[(sheight - y - 1) * swidth + x] = d;
data[(sheight - y - 1) * swidth + (swidth - x - 1)] = d;
data[y * swidth + (swidth - x - 1)] = d;
}
/*
* top/bottom
*/
x_diff = swidth - (gsize * 2);
if (x_diff > 0 && ylimit > 0)
{
for (y = 0; y < ylimit; y++)
{
if (ylimit == Gsize)
d = shadowTop[opacity_int * (Gsize + 1) + y];
else
d = sum_gaussian (gaussianMap, opacity, center, y - center, width, height);
memset (&data[y * swidth + gsize], d, x_diff);
memset (&data[(sheight - y - 1) * swidth + gsize], d, x_diff);
}
}
/*
* sides
*/
for (x = 0; x < xlimit; x++)
{
if (xlimit == Gsize)
d = shadowTop[opacity_int * (Gsize + 1) + x];
else
d = sum_gaussian (gaussianMap, opacity, x - center, center, width, height);
for (y = gsize; y < sheight - gsize; y++)
{
data[y * swidth + x] = d;
data[y * swidth + (swidth - x - 1)] = d;
}
}
return ximage;
}
static Picture
shadow_picture (Display *dpy, double opacity, Picture alpha_pict, int width, int height, int *wp, int *hp)
{
XImage *shadowImage;
Pixmap shadowPixmap;
Pixmap finalPixmap;
Picture shadowPicture;
Picture finalPicture;
GC gc;
shadowImage = make_shadow (dpy, opacity, width, height);
if (!shadowImage)
return None;
shadowPixmap = XCreatePixmap (dpy, root,
shadowImage->width,
shadowImage->height,
8);
if (!shadowPixmap)
{
XDestroyImage (shadowImage);
return None;
}
shadowPicture = XRenderCreatePicture (dpy, shadowPixmap,
XRenderFindStandardFormat (dpy, PictStandardA8),
0, 0);
if (!shadowPicture)
{
XDestroyImage (shadowImage);
XFreePixmap (dpy, shadowPixmap);
return None;
}
gc = XCreateGC (dpy, shadowPixmap, 0, 0);
if (!gc)
{
XDestroyImage (shadowImage);
XFreePixmap (dpy, shadowPixmap);
XRenderFreePicture (dpy, shadowPicture);
return None;
}
XPutImage (dpy, shadowPixmap, gc, shadowImage, 0, 0, 0, 0,
shadowImage->width,
shadowImage->height);
*wp = shadowImage->width;
*hp = shadowImage->height;
XFreeGC (dpy, gc);
XDestroyImage (shadowImage);
XFreePixmap (dpy, shadowPixmap);
return shadowPicture;
}
Picture
solid_picture (Display *dpy, Bool argb, double a, double r, double g, double b)
{
Pixmap pixmap;
Picture picture;
XRenderPictureAttributes pa;
XRenderColor c;
pixmap = XCreatePixmap (dpy, root, 1, 1, argb ? 32 : 8);
if (!pixmap)
return None;
pa.repeat = True;
picture = XRenderCreatePicture (dpy, pixmap,
XRenderFindStandardFormat (dpy, argb ? PictStandardARGB32 : PictStandardA8),
CPRepeat,
&pa);
if (!picture)
{
XFreePixmap (dpy, pixmap);
return None;
}
c.alpha = a * 0xffff;
c.red = r * 0xffff;
c.green = g * 0xffff;
c.blue = b * 0xffff;
XRenderFillRectangle (dpy, PictOpSrc, picture, &c, 0, 0, 1, 1);
XFreePixmap (dpy, pixmap);
return picture;
}
void
discard_ignore (Display *dpy, unsigned long sequence)
{
while (ignore_head)
{
if ((long) (sequence - ignore_head->sequence) > 0)
{
ignore *next = ignore_head->next;
free (ignore_head);
ignore_head = next;
if (!ignore_head)
ignore_tail = &ignore_head;
}
else
break;
}
}
void
set_ignore (Display *dpy, unsigned long sequence)
{
ignore *i = malloc (sizeof (ignore));
if (!i)
return;
i->sequence = sequence;
i->next = 0;
*ignore_tail = i;
ignore_tail = &i->next;
}
int
should_ignore (Display *dpy, unsigned long sequence)
{
discard_ignore (dpy, sequence);
return ignore_head && ignore_head->sequence == sequence;
}
static win *
find_win (Display *dpy, Window id)
{
win *w;
for (w = list; w; w = w->next)
if (w->id == id)
return w;
return 0;
}
static char *backgroundProps[] = {
"_XROOTPMAP_ID",
"_XSETROOT_ID",
0,
};
static Picture
root_tile (Display *dpy)
{
Picture picture;
Atom actual_type;
Pixmap pixmap;
int actual_format;
unsigned long nitems;
unsigned long bytes_after;
unsigned char *prop;
Bool fill;
XRenderPictureAttributes pa;
int p;
pixmap = None;
for (p = 0; backgroundProps[p]; p++)
{
if (XGetWindowProperty (dpy, root, XInternAtom (dpy, backgroundProps[p], False),
0, 4, False, AnyPropertyType,
&actual_type, &actual_format, &nitems, &bytes_after, &prop) == Success &&
actual_type == XInternAtom (dpy, "PIXMAP", False) && actual_format == 32 && nitems == 1)
{
memcpy (&pixmap, prop, 4);
XFree (prop);
fill = False;
break;
}
}
if (!pixmap)
{
pixmap = XCreatePixmap (dpy, root, 1, 1, DefaultDepth (dpy, scr));
fill = True;
}
pa.repeat = True;
picture = XRenderCreatePicture (dpy, pixmap,
XRenderFindVisualFormat (dpy,
DefaultVisual (dpy, scr)),
CPRepeat, &pa);
if (fill)
{
XRenderColor c;
c.red = c.green = c.blue = 0x8080;
c.alpha = 0xffff;
XRenderFillRectangle (dpy, PictOpSrc, picture, &c,
0, 0, 1, 1);
}
return picture;
}
static void
paint_root (Display *dpy)
{
if (!rootTile)
rootTile = root_tile (dpy);
XRenderComposite (dpy, PictOpSrc,
rootTile, None, rootBuffer,
0, 0, 0, 0, 0, 0, root_width, root_height);
}
static XserverRegion
win_extents (Display *dpy, win *w)
{
XRectangle r;
r.x = w->a.x;
r.y = w->a.y;
r.width = w->a.width + w->a.border_width * 2;
r.height = w->a.height + w->a.border_width * 2;
if (compMode != CompSimple && !(w->windowType == winDockAtom && excludeDockShadows))
{
if (compMode == CompServerShadows || w->mode != WINDOW_ARGB)
{
XRectangle sr;
if (compMode == CompServerShadows)
{
w->shadow_dx = 2;
w->shadow_dy = 7;
w->shadow_width = w->a.width;
w->shadow_height = w->a.height;
}
else
{
w->shadow_dx = shadowOffsetX;
w->shadow_dy = shadowOffsetY;
if (!w->shadow)
{
double opacity = shadowOpacity;
if (w->mode == WINDOW_TRANS)
opacity = opacity * ((double)w->opacity)/((double)OPAQUE);
w->shadow = shadow_picture (dpy, opacity, w->alphaPict,
w->a.width + w->a.border_width * 2,
w->a.height + w->a.border_width * 2,
&w->shadow_width, &w->shadow_height);
}
}
sr.x = w->a.x + w->shadow_dx;
sr.y = w->a.y + w->shadow_dy;
sr.width = w->shadow_width;
sr.height = w->shadow_height;
if (sr.x < r.x)
{
r.width = (r.x + r.width) - sr.x;
r.x = sr.x;
}
if (sr.y < r.y)
{
r.height = (r.y + r.height) - sr.y;
r.y = sr.y;
}
if (sr.x + sr.width > r.x + r.width)
r.width = sr.x + sr.width - r.x;
if (sr.y + sr.height > r.y + r.height)
r.height = sr.y + sr.height - r.y;
}
}
return XFixesCreateRegion (dpy, &r, 1);
}
static XserverRegion
border_size (Display *dpy, win *w)
{
XserverRegion border;
/*
* if window doesn't exist anymore, this will generate an error
* as well as not generate a region. Perhaps a better XFixes
* architecture would be to have a request that copies instead
* of creates, that way you'd just end up with an empty region
* instead of an invalid XID.
*/
set_ignore (dpy, NextRequest (dpy));
border = XFixesCreateRegionFromWindow (dpy, w->id, WindowRegionBounding);
/* translate this */
set_ignore (dpy, NextRequest (dpy));
XFixesTranslateRegion (dpy, border,
w->a.x + w->a.border_width,
w->a.y + w->a.border_width);
return border;
}
static void
paint_all (Display *dpy, XserverRegion region)
{
win *w;
win *t = 0;
if (!region)
{
XRectangle r;
r.x = 0;
r.y = 0;
r.width = root_width;
r.height = root_height;
region = XFixesCreateRegion (dpy, &r, 1);
}
#if MONITOR_REPAINT
rootBuffer = rootPicture;
#else
if (!rootBuffer)
{
Pixmap rootPixmap = XCreatePixmap (dpy, root, root_width, root_height,
DefaultDepth (dpy, scr));
rootBuffer = XRenderCreatePicture (dpy, rootPixmap,
XRenderFindVisualFormat (dpy,
DefaultVisual (dpy, scr)),
0, 0);
XFreePixmap (dpy, rootPixmap);
}
#endif
XFixesSetPictureClipRegion (dpy, rootPicture, 0, 0, region);
#if MONITOR_REPAINT
XRenderComposite (dpy, PictOpSrc, blackPicture, None, rootPicture,
0, 0, 0, 0, 0, 0, root_width, root_height);
#endif
#if DEBUG_REPAINT
printf ("paint:");
#endif
for (w = list; w; w = w->next)
{
#if CAN_DO_USABLE
if (!w->usable)
continue;
#endif
/* never painted, ignore it */
if (!w->damaged)
continue;
/* if invisible, ignore it */
if (w->a.x + w->a.width < 1 || w->a.y + w->a.height < 1
|| w->a.x >= root_width || w->a.y >= root_height)
continue;
if (!w->picture)
{
XRenderPictureAttributes pa;
XRenderPictFormat *format;
Drawable draw = w->id;
#if HAS_NAME_WINDOW_PIXMAP
if (hasNamePixmap && !w->pixmap)
w->pixmap = XCompositeNameWindowPixmap (dpy, w->id);
if (w->pixmap)
draw = w->pixmap;
#endif
format = XRenderFindVisualFormat (dpy, w->a.visual);
pa.subwindow_mode = IncludeInferiors;
w->picture = XRenderCreatePicture (dpy, draw,
format,
CPSubwindowMode,
&pa);
}
#if DEBUG_REPAINT
printf (" 0x%x", w->id);
#endif
if (clipChanged)
{
if (w->borderSize)
{
set_ignore (dpy, NextRequest (dpy));
XFixesDestroyRegion (dpy, w->borderSize);
w->borderSize = None;
}
if (w->extents)
{
XFixesDestroyRegion (dpy, w->extents);
w->extents = None;
}
if (w->borderClip)
{
XFixesDestroyRegion (dpy, w->borderClip);
w->borderClip = None;
}
}
if (!w->borderSize)
w->borderSize = border_size (dpy, w);
if (!w->extents)
w->extents = win_extents (dpy, w);
if (w->mode == WINDOW_SOLID)
{
int x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
x = w->a.x;
y = w->a.y;
wid = w->a.width + w->a.border_width * 2;
hei = w->a.height + w->a.border_width * 2;
#else
x = w->a.x + w->a.border_width;
y = w->a.y + w->a.border_width;
wid = w->a.width;
hei = w->a.height;
#endif
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, region);
set_ignore (dpy, NextRequest (dpy));
XFixesSubtractRegion (dpy, region, region, w->borderSize);
set_ignore (dpy, NextRequest (dpy));
XRenderComposite (dpy, PictOpSrc, w->picture, None, rootBuffer,
0, 0, 0, 0,
x, y, wid, hei);
}
if (!w->borderClip)
{
w->borderClip = XFixesCreateRegion (dpy, 0, 0);
XFixesCopyRegion (dpy, w->borderClip, region);
}
w->prev_trans = t;
t = w;
}
#if DEBUG_REPAINT
printf ("\n");
fflush (stdout);
#endif
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, region);
paint_root (dpy);
for (w = t; w; w = w->prev_trans)
{
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, w->borderClip);
switch (compMode) {
case CompSimple:
break;
case CompServerShadows:
/* dont' bother drawing shadows on desktop windows */
if (w->windowType == winDesktopAtom)
break;
set_ignore (dpy, NextRequest (dpy));
if (w->opacity != OPAQUE && !w->shadowPict)
w->shadowPict = solid_picture (dpy, True,
(double) w->opacity / OPAQUE * 0.3,
0, 0, 0);
XRenderComposite (dpy, PictOpOver,
w->shadowPict ? w->shadowPict : transBlackPicture,
w->picture, rootBuffer,
0, 0, 0, 0,
w->a.x + w->shadow_dx,
w->a.y + w->shadow_dy,
w->shadow_width, w->shadow_height);
break;
case CompClientShadows:
/* don't bother drawing shadows on desktop windows */
if (w->shadow && w->windowType != winDesktopAtom)
{
XRenderComposite (dpy, PictOpOver, blackPicture, w->shadow, rootBuffer,
0, 0, 0, 0,
w->a.x + w->shadow_dx,
w->a.y + w->shadow_dy,
w->shadow_width, w->shadow_height);
}
break;
}
if (w->opacity != OPAQUE && !w->alphaPict)
w->alphaPict = solid_picture (dpy, False,
(double) w->opacity / OPAQUE, 0, 0, 0);
if (w->mode == WINDOW_TRANS)
{
int x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
x = w->a.x;
y = w->a.y;
wid = w->a.width + w->a.border_width * 2;
hei = w->a.height + w->a.border_width * 2;
#else
x = w->a.x + w->a.border_width;
y = w->a.y + w->a.border_width;
wid = w->a.width;
hei = w->a.height;
#endif
set_ignore (dpy, NextRequest (dpy));
XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
0, 0, 0, 0,
x, y, wid, hei);
}
else if (w->mode == WINDOW_ARGB)
{
int x, y, wid, hei;
#if HAS_NAME_WINDOW_PIXMAP
x = w->a.x;
y = w->a.y;
wid = w->a.width + w->a.border_width * 2;
hei = w->a.height + w->a.border_width * 2;
#else
x = w->a.x + w->a.border_width;
y = w->a.y + w->a.border_width;
wid = w->a.width;
hei = w->a.height;
#endif
set_ignore (dpy, NextRequest (dpy));
XRenderComposite (dpy, PictOpOver, w->picture, w->alphaPict, rootBuffer,
0, 0, 0, 0,
x, y, wid, hei);
}
XFixesDestroyRegion (dpy, w->borderClip);
w->borderClip = None;
}
XFixesDestroyRegion (dpy, region);
if (rootBuffer != rootPicture)
{
XFixesSetPictureClipRegion (dpy, rootBuffer, 0, 0, None);
XRenderComposite (dpy, PictOpSrc, rootBuffer, None, rootPicture,
0, 0, 0, 0, 0, 0, root_width, root_height);
}
}
static void
add_damage (Display *dpy, XserverRegion damage)
{
if (allDamage)
{
XFixesUnionRegion (dpy, allDamage, allDamage, damage);
XFixesDestroyRegion (dpy, damage);
}
else
allDamage = damage;
}
static void
repair_win (Display *dpy, win *w)
{
XserverRegion parts;
if (!w->damaged)
{
parts = win_extents (dpy, w);
set_ignore (dpy, NextRequest (dpy));
XDamageSubtract (dpy, w->damage, None, None);
}
else
{
XserverRegion o;
parts = XFixesCreateRegion (dpy, 0, 0);
set_ignore (dpy, NextRequest (dpy));
XDamageSubtract (dpy, w->damage, None, parts);
XFixesTranslateRegion (dpy, parts,
w->a.x + w->a.border_width,
w->a.y + w->a.border_width);
if (compMode == CompServerShadows)
{
o = XFixesCreateRegion (dpy, 0, 0);
XFixesCopyRegion (dpy, o, parts);
XFixesTranslateRegion (dpy, o, w->shadow_dx, w->shadow_dy);
XFixesUnionRegion (dpy, parts, parts, o);
XFixesDestroyRegion (dpy, o);
}
}
add_damage (dpy, parts);
w->damaged = 1;
}
static void
map_win (Display *dpy, Window id, unsigned long sequence, Bool fade)
{
win *w = find_win (dpy, id);
Drawable back;
if (!w)
return;
w->a.map_state = IsViewable;
/* This needs to be here or else we lose transparency messages */
XSelectInput (dpy, id, PropertyChangeMask);
#if CAN_DO_USABLE
w->damage_bounds.x = w->damage_bounds.y = 0;
w->damage_bounds.width = w->damage_bounds.height = 0;
#endif
w->damaged = 0;
if (fade && fadeWindows)
set_fade (dpy, w, 0, get_opacity_percent (dpy, w, 1.0), fade_in_step, 0, False, True, True);
}
static void
finish_unmap_win (Display *dpy, win *w)
{
w->damaged = 0;
#if CAN_DO_USABLE
w->usable = False;
#endif
if (w->extents != None)
{
add_damage (dpy, w->extents); /* destroys region */
w->extents = None;
}
#if HAS_NAME_WINDOW_PIXMAP
if (w->pixmap)
{
XFreePixmap (dpy, w->pixmap);
w->pixmap = None;
}
#endif
if (w->picture)
{
set_ignore (dpy, NextRequest (dpy));
XRenderFreePicture (dpy, w->picture);
w->picture = None;
}
/* don't care about properties anymore */
set_ignore (dpy, NextRequest (dpy));
XSelectInput(dpy, w->id, 0);
if (w->borderSize)
{
set_ignore (dpy, NextRequest (dpy));
XFixesDestroyRegion (dpy, w->borderSize);
w->borderSize = None;
}
if (w->shadow)
{
XRenderFreePicture (dpy, w->shadow);
w->shadow = None;
}
if (w->borderClip)
{
XFixesDestroyRegion (dpy, w->borderClip);
w->borderClip = None;
}
clipChanged = True;
}
#if HAS_NAME_WINDOW_PIXMAP
static void
unmap_callback (Display *dpy, win *w, Bool gone)
{
finish_unmap_win (dpy, w);
}
#endif
static void
unmap_win (Display *dpy, Window id, Bool fade)
{
win *w = find_win (dpy, id);
if (!w)
return;
w->a.map_state = IsUnmapped;
#if HAS_NAME_WINDOW_PIXMAP
if (w->pixmap && fade && fadeWindows)
set_fade (dpy, w, w->opacity*1.0/OPAQUE, 0.0, fade_out_step, unmap_callback, False, False, True);
else
#endif
finish_unmap_win (dpy, w);
}
/* Get the opacity prop from window
not found: default
otherwise the value
*/
static unsigned int
get_opacity_prop(Display *dpy, win *w, unsigned int def)
{
Atom actual;
int format;
unsigned long n, left;
unsigned char *data;
int result = XGetWindowProperty(dpy, w->id, opacityAtom, 0L, 1L, False,
XA_CARDINAL, &actual, &format,
&n, &left, &data);
if (result == Success && data != NULL)
{
unsigned int i;
memcpy (&i, data, sizeof (unsigned int));
XFree( (void *) data);
return i;
}
return def;
}
/* Get the opacity property from the window in a percent format
not found: default
otherwise: the value
*/
static double
get_opacity_percent(Display *dpy, win *w, double def)
{
unsigned int opacity = get_opacity_prop (dpy, w, (unsigned int)(OPAQUE*def));
return opacity*1.0/OPAQUE;
}
/* determine mode for window all in one place.
Future might check for menu flag and other cool things
*/
static Atom
get_wintype_prop(Display * dpy, Window w)
{
Atom actual;
int format;
unsigned long n, left;
unsigned char *data;
int result = XGetWindowProperty (dpy, w, winTypeAtom, 0L, 1L, False,
XA_ATOM, &actual, &format,
&n, &left, &data);
if (result == Success && data != None)
{
Atom a;
memcpy (&a, data, sizeof (Atom));
XFree ( (void *) data);
return a;
}
return winNormalAtom;
}
static void
determine_mode(Display *dpy, win *w)
{
int mode;
XRenderPictFormat *format;
unsigned int default_opacity;
/* if trans prop == -1 fall back on previous tests*/
if (w->alphaPict)
{
XRenderFreePicture (dpy, w->alphaPict);
w->alphaPict = None;
}
if (w->shadowPict)
{
XRenderFreePicture (dpy, w->shadowPict);
w->shadowPict = None;
}
if (w->a.class == InputOnly)
{
format = 0;
}
else
{
format = XRenderFindVisualFormat (dpy, w->a.visual);
}
if (format && format->type == PictTypeDirect && format->direct.alphaMask)
{
mode = WINDOW_ARGB;
}
else if (w->opacity != OPAQUE)
{
mode = WINDOW_TRANS;
}
else
{
mode = WINDOW_SOLID;
}
w->mode = mode;
if (w->extents)
{
XserverRegion damage;
damage = XFixesCreateRegion (dpy, 0, 0);
XFixesCopyRegion (dpy, damage, w->extents);
add_damage (dpy, damage);
}
}
static Atom
determine_wintype (Display *dpy, Window w)
{
Window root_return, parent_return;
Window *children = NULL;
unsigned int nchildren, i;
Atom type;
type = get_wintype_prop (dpy, w);
if (type != winNormalAtom)
return type;
if (!XQueryTree (dpy, w, &root_return, &parent_return, &children,
&nchildren))
{
/* XQueryTree failed. */
if (children)
XFree ((void *)children);
return winNormalAtom;
}
for (i = 0;i < nchildren;i++)
{
type = determine_wintype (dpy, children[i]);
if (type != winNormalAtom)
return type;
}
if (children)
XFree ((void *)children);
return winNormalAtom;
}
static void
add_win (Display *dpy, Window id, Window prev)
{
win *new = malloc (sizeof (win));
win **p;
if (!new)
return;
if (prev)
{
for (p = &list; *p; p = &(*p)->next)
if ((*p)->id == prev)
break;
}
else
p = &list;
new->id = id;
set_ignore (dpy, NextRequest (dpy));
if (!XGetWindowAttributes (dpy, id, &new->a))
{
free (new);
return;
}
new->damaged = 0;
#if CAN_DO_USABLE
new->usable = False;
#endif
#if HAS_NAME_WINDOW_PIXMAP
new->pixmap = None;
#endif
new->picture = None;
if (new->a.class == InputOnly)
{
new->damage_sequence = 0;
new->damage = None;
}
else
{
new->damage_sequence = NextRequest (dpy);
new->damage = XDamageCreate (dpy, id, XDamageReportNonEmpty);
}
new->alphaPict = None;
new->shadowPict = None;
new->borderSize = None;
new->extents = None;
new->shadow = None;
new->shadow_dx = 0;
new->shadow_dy = 0;
new->shadow_width = 0;
new->shadow_height = 0;
new->opacity = OPAQUE;
new->borderClip = None;
new->prev_trans = 0;
/* moved mode setting to one place */
new->opacity = get_opacity_prop (dpy, new, OPAQUE);
new->windowType = determine_wintype (dpy, new->id);
determine_mode (dpy, new);
new->next = *p;
*p = new;
if (new->a.map_state == IsViewable)
map_win (dpy, id, new->damage_sequence - 1, True);
}
void
restack_win (Display *dpy, win *w, Window new_above)
{
Window old_above;
if (w->next)
old_above = w->next->id;
else
old_above = None;
if (old_above != new_above)
{
win **prev;
/* unhook */
for (prev = &list; *prev; prev = &(*prev)->next)
if ((*prev) == w)
break;
*prev = w->next;
/* rehook */
for (prev = &list; *prev; prev = &(*prev)->next)
{
if ((*prev)->id == new_above)
break;
}
w->next = *prev;
*prev = w;
}
}
static void
configure_win (Display *dpy, XConfigureEvent *ce)
{
win *w = find_win (dpy, ce->window);
Window above;
XserverRegion damage = None;
if (!w)
{
if (ce->window == root)
{
if (rootBuffer)
{
XRenderFreePicture (dpy, rootBuffer);
rootBuffer = None;
}
root_width = ce->width;
root_height = ce->height;
}
return;
}
#if CAN_DO_USABLE
if (w->usable)
#endif
{
damage = XFixesCreateRegion (dpy, 0, 0);
if (w->extents != None)
XFixesCopyRegion (dpy, damage, w->extents);
}
w->a.x = ce->x;
w->a.y = ce->y;
if (w->a.width != ce->width || w->a.height != ce->height)
{
#if HAS_NAME_WINDOW_PIXMAP
if (w->pixmap)
{
XFreePixmap (dpy, w->pixmap);
w->pixmap = None;
if (w->picture)
{
XRenderFreePicture (dpy, w->picture);
w->picture = None;
}
}
#endif
if (w->shadow)
{
XRenderFreePicture (dpy, w->shadow);
w->shadow = None;
}
}
w->a.width = ce->width;
w->a.height = ce->height;
w->a.border_width = ce->border_width;
w->a.override_redirect = ce->override_redirect;
restack_win (dpy, w, ce->above);
if (damage)
{
XserverRegion extents = win_extents (dpy, w);
XFixesUnionRegion (dpy, damage, damage, extents);
XFixesDestroyRegion (dpy, extents);
add_damage (dpy, damage);
}
clipChanged = True;
}
static void
circulate_win (Display *dpy, XCirculateEvent *ce)
{
win *w = find_win (dpy, ce->window);
Window new_above;
if (!w)
return;
if (ce->place == PlaceOnTop)
new_above = list->id;
else
new_above = None;
restack_win (dpy, w, new_above);
clipChanged = True;
}
static void
finish_destroy_win (Display *dpy, Window id, Bool gone)
{
win **prev, *w;
for (prev = &list; (w = *prev); prev = &w->next)
if (w->id == id)
{
if (gone)
finish_unmap_win (dpy, w);
*prev = w->next;
if (w->picture)
{
set_ignore (dpy, NextRequest (dpy));
XRenderFreePicture (dpy, w->picture);
w->picture = None;
}
if (w->alphaPict)
{
XRenderFreePicture (dpy, w->alphaPict);
w->alphaPict = None;
}
if (w->shadowPict)
{
XRenderFreePicture (dpy, w->shadowPict);
w->shadowPict = None;
}
if (w->damage != None)
{
set_ignore (dpy, NextRequest (dpy));
XDamageDestroy (dpy, w->damage);
w->damage = None;
}
cleanup_fade (dpy, w);
free (w);
break;
}
}
#if HAS_NAME_WINDOW_PIXMAP
static void
destroy_callback (Display *dpy, win *w, Bool gone)
{
finish_destroy_win (dpy, w->id, gone);
}
#endif
static void
destroy_win (Display *dpy, Window id, Bool gone, Bool fade)
{
win *w = find_win (dpy, id);
#if HAS_NAME_WINDOW_PIXMAP
if (w && w->pixmap && fade && fadeWindows)
set_fade (dpy, w, w->opacity*1.0/OPAQUE, 0.0, fade_out_step, destroy_callback, gone, False, True);
else
#endif
{
finish_destroy_win (dpy, id, gone);
}
}
/*
static void
dump_win (win *w)
{
printf ("\t%08lx: %d x %d + %d + %d (%d)\n", w->id,
w->a.width, w->a.height, w->a.x, w->a.y, w->a.border_width);
}
static void
dump_wins (void)
{
win *w;
printf ("windows:\n");
for (w = list; w; w = w->next)
dump_win (w);
}
*/
static void
damage_win (Display *dpy, XDamageNotifyEvent *de)
{
win *w = find_win (dpy, de->drawable);
if (!w)
return;
#if CAN_DO_USABLE
if (!w->usable)
{
if (w->damage_bounds.width == 0 || w->damage_bounds.height == 0)
{
w->damage_bounds = de->area;
}
else
{
if (de->area.x < w->damage_bounds.x)
{
w->damage_bounds.width += (w->damage_bounds.x - de->area.x);
w->damage_bounds.x = de->area.x;
}
if (de->area.y < w->damage_bounds.y)
{
w->damage_bounds.height += (w->damage_bounds.y - de->area.y);
w->damage_bounds.y = de->area.y;
}
if (de->area.x + de->area.width > w->damage_bounds.x + w->damage_bounds.width)
w->damage_bounds.width = de->area.x + de->area.width - w->damage_bounds.x;
if (de->area.y + de->area.height > w->damage_bounds.y + w->damage_bounds.height)
w->damage_bounds.height = de->area.y + de->area.height - w->damage_bounds.y;
}
#if 0
printf ("unusable damage %d, %d: %d x %d bounds %d, %d: %d x %d\n",
de->area.x,
de->area.y,
de->area.width,
de->area.height,
w->damage_bounds.x,
w->damage_bounds.y,
w->damage_bounds.width,
w->damage_bounds.height);
#endif
if (w->damage_bounds.x <= 0 &&
w->damage_bounds.y <= 0 &&
w->a.width <= w->damage_bounds.x + w->damage_bounds.width &&
w->a.height <= w->damage_bounds.y + w->damage_bounds.height)
{
clipChanged = True;
if (fadeWindows)
set_fade (dpy, w, 0, get_opacity_percent (dpy, w, 1.0), fade_in_step, 0, False, True, True);
w->usable = True;
}
}
if (w->usable)
#endif
repair_win (dpy, w);
}
static int
error (Display *dpy, XErrorEvent *ev)
{
int o;
char *name = 0;
if (should_ignore (dpy, ev->serial))
return 0;
if (ev->request_code == composite_opcode &&
ev->minor_code == X_CompositeRedirectSubwindows)
{
fprintf (stderr, "Another composite manager is already running\n");
exit (1);
}
o = ev->error_code - xfixes_error;
switch (o) {
case BadRegion: name = "BadRegion"; break;
default: break;
}
o = ev->error_code - damage_error;
switch (o) {
case BadDamage: name = "BadDamage"; break;
default: break;
}
o = ev->error_code - render_error;
switch (o) {
case BadPictFormat: name ="BadPictFormat"; break;
case BadPicture: name ="BadPicture"; break;
case BadPictOp: name ="BadPictOp"; break;
case BadGlyphSet: name ="BadGlyphSet"; break;
case BadGlyph: name ="BadGlyph"; break;
default: break;
}
printf ("error %d request %d minor %d serial %d\n",
ev->error_code, ev->request_code, ev->minor_code, ev->serial);
/* abort (); this is just annoying to most people */
return 0;
}
static void
expose_root (Display *dpy, Window root, XRectangle *rects, int nrects)
{
XserverRegion region = XFixesCreateRegion (dpy, rects, nrects);
add_damage (dpy, region);
}
static int
ev_serial (XEvent *ev)
{
if (ev->type & 0x7f != KeymapNotify)
return ev->xany.serial;
return NextRequest (ev->xany.display);
}
static char *
ev_name (XEvent *ev)
{
static char buf[128];
switch (ev->type & 0x7f) {
case Expose:
return "Expose";
case MapNotify:
return "Map";
case UnmapNotify:
return "Unmap";
case ReparentNotify:
return "Reparent";
case CirculateNotify:
return "Circulate";
default:
if (ev->type == damage_event + XDamageNotify)
return "Damage";
sprintf (buf, "Event %d", ev->type);
return buf;
}
}
static Window
ev_window (XEvent *ev)
{
switch (ev->type) {
case Expose:
return ev->xexpose.window;
case MapNotify:
return ev->xmap.window;
case UnmapNotify:
return ev->xunmap.window;
case ReparentNotify:
return ev->xreparent.window;
case CirculateNotify:
return ev->xcirculate.window;
default:
if (ev->type == damage_event + XDamageNotify)
return ((XDamageNotifyEvent *) ev)->drawable;
return 0;
}
}
void
usage (char *program)
{
fprintf (stderr, "%s v1.1.3\n", program);
fprintf (stderr, "usage: %s [options]\n", program);
fprintf (stderr, "Options\n");
fprintf (stderr, " -d display\n Specifies which display should be managed.\n");
fprintf (stderr, " -r radius\n Specifies the blur radius for client-side shadows. (default 12)\n");
fprintf (stderr, " -o opacity\n Specifies the translucency for client-side shadows. (default .75)\n");
fprintf (stderr, " -l left-offset\n Specifies the left offset for client-side shadows. (default -15)\n");
fprintf (stderr, " -t top-offset\n Specifies the top offset for clinet-side shadows. (default -15)\n");
fprintf (stderr, " -I fade-in-step\n Specifies the opacity change between steps while fading in. (default 0.028)\n");
fprintf (stderr, " -O fade-out-step\n Specifies the opacity change between steps while fading out. (default 0.03)\n");
fprintf (stderr, " -D fade-delta-time\n Specifies the time between steps in a fade in milliseconds. (default 10)\n");
fprintf (stderr, " -a\n Use automatic server-side compositing. Faster, but no special effects.\n");
fprintf (stderr, " -c\n Draw client-side shadows with fuzzy edges.\n");
fprintf (stderr, " -C\n Avoid drawing shadows on dock/panel windows.\n");
fprintf (stderr, " -f\n Fade windows in/out when opening/closing.\n");
fprintf (stderr, " -F\n Fade windows during opacity changes.\n");
fprintf (stderr, " -n\n Normal client-side compositing with transparency support\n");
fprintf (stderr, " -s\n Draw server-side shadows with sharp edges.\n");
fprintf (stderr, " -S\n Enable synchronous operation (for debugging).\n");
exit (1);
}
static void
register_cm (void)
{
Window w;
Atom a;
w = XCreateSimpleWindow (dpy, RootWindow (dpy, 0), 0, 0, 1, 1, 0, None,
None);
Xutf8SetWMProperties (dpy, w, "xcompmgr", "xcompmgr", NULL, 0, NULL, NULL,
NULL);
/* FIXME: Don't hard code the screen number */
a = XInternAtom (dpy, "_NET_WM_CM_S0", False);
XSetSelectionOwner (dpy, a, w, 0);
}
int
main (int argc, char **argv)
{
XEvent ev;
Window root_return, parent_return;
Window *children;
Pixmap transPixmap;
Pixmap blackPixmap;
unsigned int nchildren;
int i;
XRenderPictureAttributes pa;
XRenderColor c;
XRectangle *expose_rects = 0;
int size_expose = 0;
int n_expose = 0;
struct pollfd ufd;
int n;
int last_update;
int now;
int p;
int composite_major, composite_minor;
char *display = 0;
int o;
while ((o = getopt (argc, argv, "D:I:O:d:r:o:l:t:scnfFCaS")) != -1)
{
switch (o) {
case 'd':
display = optarg;
break;
case 'D':
fade_delta = atoi (optarg);
if (fade_delta < 1)
fade_delta = 10;
break;
case 'I':
fade_in_step = atof (optarg);
if (fade_in_step <= 0)
fade_in_step = 0.01;
break;
case 'O':
fade_out_step = atof (optarg);
if (fade_out_step <= 0)
fade_out_step = 0.01;
break;
case 's':
compMode = CompServerShadows;
break;
case 'c':
compMode = CompClientShadows;
break;
case 'C':
excludeDockShadows = True;
break;
case 'n':
compMode = CompSimple;
break;
case 'f':
fadeWindows = True;
break;
case 'F':
fadeTrans = True;
break;
case 'a':
autoRedirect = True;
break;
case 'S':
synchronize = True;
break;
case 'r':
shadowRadius = atoi (optarg);
break;
case 'o':
shadowOpacity = atof (optarg);
break;
case 'l':
shadowOffsetX = atoi (optarg);
break;
case 't':
shadowOffsetY = atoi (optarg);
break;
default:
usage (argv[0]);
break;
}
}
dpy = XOpenDisplay (display);
if (!dpy)
{
fprintf (stderr, "Can't open display\n");
exit (1);
}
XSetErrorHandler (error);
if (synchronize)
XSynchronize (dpy, 1);
scr = DefaultScreen (dpy);
root = RootWindow (dpy, scr);
if (!XRenderQueryExtension (dpy, &render_event, &render_error))
{
fprintf (stderr, "No render extension\n");
exit (1);
}
if (!XQueryExtension (dpy, COMPOSITE_NAME, &composite_opcode,
&composite_event, &composite_error))
{
fprintf (stderr, "No composite extension\n");
exit (1);
}
XCompositeQueryVersion (dpy, &composite_major, &composite_minor);
#if HAS_NAME_WINDOW_PIXMAP
if (composite_major > 0 || composite_minor >= 2)
hasNamePixmap = True;
#endif
if (!XDamageQueryExtension (dpy, &damage_event, &damage_error))
{
fprintf (stderr, "No damage extension\n");
exit (1);
}
if (!XFixesQueryExtension (dpy, &xfixes_event, &xfixes_error))
{
fprintf (stderr, "No XFixes extension\n");
exit (1);
}
register_cm();
/* get atoms */
opacityAtom = XInternAtom (dpy, OPACITY_PROP, False);
winTypeAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE", False);
winDesktopAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DESKTOP", False);
winDockAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DOCK", False);
winToolbarAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_TOOLBAR", False);
winMenuAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_MENU", False);
winUtilAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_UTILITY", False);
winSplashAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_SPLASH", False);
winDialogAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
winNormalAtom = XInternAtom (dpy, "_NET_WM_WINDOW_TYPE_NORMAL", False);
pa.subwindow_mode = IncludeInferiors;
if (compMode == CompClientShadows)
{
gaussianMap = make_gaussian_map(dpy, shadowRadius);
presum_gaussian (gaussianMap);
}
root_width = DisplayWidth (dpy, scr);
root_height = DisplayHeight (dpy, scr);
rootPicture = XRenderCreatePicture (dpy, root,
XRenderFindVisualFormat (dpy,
DefaultVisual (dpy, scr)),
CPSubwindowMode,
&pa);
blackPicture = solid_picture (dpy, True, 1, 0, 0, 0);
if (compMode == CompServerShadows)
transBlackPicture = solid_picture (dpy, True, 0.3, 0, 0, 0);
allDamage = None;
clipChanged = True;
XGrabServer (dpy);
if (autoRedirect)
XCompositeRedirectSubwindows (dpy, root, CompositeRedirectAutomatic);
else
{
XCompositeRedirectSubwindows (dpy, root, CompositeRedirectManual);
XSelectInput (dpy, root,
SubstructureNotifyMask|
ExposureMask|
StructureNotifyMask|
PropertyChangeMask);
XQueryTree (dpy, root, &root_return, &parent_return, &children, &nchildren);
for (i = 0; i < nchildren; i++)
add_win (dpy, children[i], i ? children[i-1] : None);
XFree (children);
}
XUngrabServer (dpy);
ufd.fd = ConnectionNumber (dpy);
ufd.events = POLLIN;
if (!autoRedirect)
paint_all (dpy, None);
for (;;)
{
/* dump_wins (); */
do {
if (autoRedirect)
XFlush (dpy);
if (!QLength (dpy))
{
if (poll (&ufd, 1, fade_timeout()) == 0)
{
run_fades (dpy);
break;
}
}
XNextEvent (dpy, &ev);
if (ev.type & 0x7f != KeymapNotify)
discard_ignore (dpy, ev.xany.serial);
#if DEBUG_EVENTS
printf ("event %10.10s serial 0x%08x window 0x%08x\n",
ev_name(&ev), ev_serial (&ev), ev_window (&ev));
#endif
if (!autoRedirect) switch (ev.type) {
case CreateNotify:
add_win (dpy, ev.xcreatewindow.window, 0);
break;
case ConfigureNotify:
configure_win (dpy, &ev.xconfigure);
break;
case DestroyNotify:
destroy_win (dpy, ev.xdestroywindow.window, True, True);
break;
case MapNotify:
map_win (dpy, ev.xmap.window, ev.xmap.serial, True);
break;
case UnmapNotify:
unmap_win (dpy, ev.xunmap.window, True);
break;
case ReparentNotify:
if (ev.xreparent.parent == root)
add_win (dpy, ev.xreparent.window, 0);
else
destroy_win (dpy, ev.xreparent.window, False, True);
break;
case CirculateNotify:
circulate_win (dpy, &ev.xcirculate);
break;
case Expose:
if (ev.xexpose.window == root)
{
int more = ev.xexpose.count + 1;
if (n_expose == size_expose)
{
if (expose_rects)
{
expose_rects = realloc (expose_rects,
(size_expose + more) *
sizeof (XRectangle));
size_expose += more;
}
else
{
expose_rects = malloc (more * sizeof (XRectangle));
size_expose = more;
}
}
expose_rects[n_expose].x = ev.xexpose.x;
expose_rects[n_expose].y = ev.xexpose.y;
expose_rects[n_expose].width = ev.xexpose.width;
expose_rects[n_expose].height = ev.xexpose.height;
n_expose++;
if (ev.xexpose.count == 0)
{
expose_root (dpy, root, expose_rects, n_expose);
n_expose = 0;
}
}
break;
case PropertyNotify:
for (p = 0; backgroundProps[p]; p++)
{
if (ev.xproperty.atom == XInternAtom (dpy, backgroundProps[p], False))
{
if (rootTile)
{
XClearArea (dpy, root, 0, 0, 0, 0, True);
XRenderFreePicture (dpy, rootTile);
rootTile = None;
break;
}
}
}
/* check if Trans property was changed */
if (ev.xproperty.atom == opacityAtom)
{
/* reset mode and redraw window */
win * w = find_win(dpy, ev.xproperty.window);
if (w)
{
if (fadeTrans)
set_fade (dpy, w, w->opacity*1.0/OPAQUE, get_opacity_percent (dpy, w, 1.0),
fade_out_step, 0, False, True, False);
else
{
w->opacity = get_opacity_prop(dpy, w, OPAQUE);
determine_mode(dpy, w);
if (w->shadow)
{
XRenderFreePicture (dpy, w->shadow);
w->shadow = None;
w->extents = win_extents (dpy, w);
}
}
}
}
break;
default:
if (ev.type == damage_event + XDamageNotify)
damage_win (dpy, (XDamageNotifyEvent *) &ev);
break;
}
} while (QLength (dpy));
if (allDamage && !autoRedirect)
{
static int paint;
paint_all (dpy, allDamage);
paint++;
XSync (dpy, False);
allDamage = None;
clipChanged = False;
}
}
}
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