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picom/xcompmgr.c
Christopher Jeffrey 0732a19af2 fix compiler warnings
2011-11-04 13:30:53 -05:00

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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 <getopt.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 enum {
WINTYPE_DESKTOP,
WINTYPE_DOCK,
WINTYPE_TOOLBAR,
WINTYPE_MENU,
WINTYPE_UTILITY,
WINTYPE_SPLASH,
WINTYPE_DIALOG,
WINTYPE_NORMAL,
WINTYPE_DROPDOWN_MENU,
WINTYPE_POPUP_MENU,
WINTYPE_TOOLTIP,
WINTYPE_NOTIFY,
WINTYPE_COMBO,
WINTYPE_DND,
NUM_WINTYPES
} wintype;
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 alpha_pict;
Picture shadow_pict;
XserverRegion border_size;
XserverRegion extents;
Picture shadow;
int shadow_dx;
int shadow_dy;
int shadow_width;
int shadow_height;
unsigned int opacity;
wintype window_type;
unsigned long damage_sequence; /* sequence when damage was created */
Bool destroyed;
Bool need_configure;
XConfigureEvent queue_configure;
/* for drawing translucent windows */
XserverRegion border_clip;
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);
Display *dpy;
} fade;
win *list;
fade *fades;
Display *dpy;
int scr;
Window root;
Picture root_picture;
Picture root_buffer;
Picture black_picture;
Picture root_tile;
XserverRegion all_damage;
Bool clip_changed;
#if HAS_NAME_WINDOW_PIXMAP
Bool has_name_pixmap;
#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 opacity_atom;
Atom win_type_atom;
Atom win_type[NUM_WINTYPES];
double win_type_opacity[NUM_WINTYPES];
Bool win_type_shadow[NUM_WINTYPES];
Bool win_type_fade[NUM_WINTYPES];
#define REGISTER_PROP "_NET_WM_CM_S"
#define OPAQUE 0xffffffff
conv *gaussian_map;
#define WINDOW_SOLID 0
#define WINDOW_TRANS 1
#define WINDOW_ARGB 2
#define DEBUG_REPAINT 0
#define DEBUG_EVENTS 0
#define MONITOR_REPAINT 0
static void
determine_mode(Display *dpy, win *w);
static double
get_opacity_percent(Display *dpy, win *w);
static XserverRegion
win_extents(Display *dpy, win *w);
int shadow_radius = 12;
int shadow_offset_x = -15;
int shadow_offset_y = -15;
double shadow_opacity = .75;
double fade_in_step = 0.028;
double fade_out_step = 0.03;
int fade_delta = 10;
int fade_time = 0;
Bool fade_trans = False;
Bool inactive_transparency = False;
/* For shadow precomputation */
int Gsize = -1;
unsigned char *shadow_corner = NULL;
unsigned char *shadow_top = 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);
}
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 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 && f->callback) {
(*f->callback)(dpy, f->w);
}
}
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;
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;
if (w->extents != None) {
XFixesDestroyRegion(dpy, w->extents);
}
/* rebuild the shadow */
w->extents = win_extents(dpy, w);
}
/* fading windows need to be drawn, mark
them as damaged. when a window maps,
if it tries to fade in but it already
at the right opacity (map/unmap/map fast)
then it will never get drawn without this
until it repaints */
w->damaged = 1;
}
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 *next = fades;
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;
while (next) {
fade *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;
if (w->extents != None) {
XFixesDestroyRegion(dpy, w->extents);
}
/* rebuild the shadow */
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 (shadow_corner) free((void *)shadow_corner);
if (shadow_top) free((void *)shadow_top);
shadow_corner = (unsigned char *)(malloc((Gsize + 1) * (Gsize + 1) * 26));
shadow_top = (unsigned char *)(malloc((Gsize + 1) * 26));
for (x = 0; x <= Gsize; x++) {
shadow_top[25 * (Gsize + 1) + x] =
sum_gaussian(map, 1, x - center, center, Gsize * 2, Gsize * 2);
for (opacity = 0; opacity < 25; opacity++) {
shadow_top[opacity * (Gsize + 1) + x] =
shadow_top[25 * (Gsize + 1) + x] * opacity / 25;
}
for (y = 0; y <= x; y++) {
shadow_corner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x]
= sum_gaussian(map, 1, x - center, y - center, Gsize * 2, Gsize * 2);
shadow_corner[25 * (Gsize + 1) * (Gsize + 1) + x * (Gsize + 1) + y]
= shadow_corner[25 * (Gsize + 1) * (Gsize + 1) + y * (Gsize + 1) + x];
for (opacity = 0; opacity < 25; opacity++) {
shadow_corner[opacity * (Gsize + 1) * (Gsize + 1)
+ y * (Gsize + 1) + x]
= shadow_corner[opacity * (Gsize + 1) * (Gsize + 1)
+ x * (Gsize + 1) + y]
= shadow_corner[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 = gaussian_map->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 = shadow_top[opacity_int * (Gsize + 1) + Gsize];
} else {
d = sum_gaussian(gaussian_map,
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 = shadow_corner[opacity_int * (Gsize + 1) * (Gsize + 1)
+ y * (Gsize + 1) + x];
} else {
d = sum_gaussian(gaussian_map,
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 = shadow_top[opacity_int * (Gsize + 1) + y];
} else {
d = sum_gaussian(gaussian_map,
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 = shadow_top[opacity_int * (Gsize + 1) + x];
} else {
d = sum_gaussian(gaussian_map,
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;
Picture shadow_picture;
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;
}
shadow_picture = XRenderCreatePicture(dpy, shadowPixmap,
XRenderFindStandardFormat(dpy, PictStandardA8), 0, 0);
if (!shadow_picture) {
XDestroyImage(shadowImage);
XFreePixmap(dpy, shadowPixmap);
return None;
}
gc = XCreateGC(dpy, shadowPixmap, 0, 0);
if (!gc) {
XDestroyImage(shadowImage);
XFreePixmap(dpy, shadowPixmap);
XRenderFreePicture(dpy, shadow_picture);
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 shadow_picture;
}
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 && !w->destroyed)
return w;
}
return 0;
}
static const char *background_props[] = {
"_XROOTPMAP_ID",
"_XSETROOT_ID",
0,
};
static Picture
root_tile_f(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; background_props[p]; p++) {
if (XGetWindowProperty(dpy, root, XInternAtom(
dpy, background_props[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 (!root_tile) {
root_tile = root_tile_f(dpy);
}
XRenderComposite(
dpy, PictOpSrc, root_tile, None,
root_buffer, 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;
// check NUM_WINTYPES to prevent segfault
if (w->window_type
&& w->window_type < NUM_WINTYPES
&& win_type_shadow[w->window_type]) {
//if (w->mode != WINDOW_ARGB) {
XRectangle sr;
w->shadow_dx = shadow_offset_x;
w->shadow_dy = shadow_offset_y;
if (!w->shadow) {
double opacity = shadow_opacity;
if (w->mode == WINDOW_TRANS) {
opacity = opacity * ((double)w->opacity) / ((double)OPAQUE);
}
w->shadow = shadow_picture(
dpy, opacity, w->alpha_pict,
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
root_buffer = root_picture;
#else
if (!root_buffer) {
Pixmap rootPixmap = XCreatePixmap(
dpy, root, root_width, root_height,
DefaultDepth(dpy, scr));
root_buffer = XRenderCreatePicture(dpy, rootPixmap,
XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)),
0, 0);
XFreePixmap(dpy, rootPixmap);
}
#endif
XFixesSetPictureClipRegion(dpy, root_picture, 0, 0, region);
#if MONITOR_REPAINT
XRenderComposite(
dpy, PictOpSrc, black_picture, None,
root_picture, 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 (has_name_pixmap && !w->pixmap) {
set_ignore(dpy, NextRequest(dpy));
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 (clip_changed) {
if (w->border_size) {
set_ignore(dpy, NextRequest(dpy));
XFixesDestroyRegion(dpy, w->border_size);
w->border_size = None;
}
if (w->extents) {
XFixesDestroyRegion(dpy, w->extents);
w->extents = None;
}
if (w->border_clip) {
XFixesDestroyRegion(dpy, w->border_clip);
w->border_clip = None;
}
}
if (!w->border_size) {
w->border_size = 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, root_buffer, 0, 0, region);
set_ignore(dpy, NextRequest(dpy));
XFixesSubtractRegion(dpy, region, region, w->border_size);
set_ignore(dpy, NextRequest(dpy));
XRenderComposite(
dpy, PictOpSrc, w->picture,
None, root_buffer, 0, 0, 0, 0,
x, y, wid, hei);
}
if (!w->border_clip) {
w->border_clip = XFixesCreateRegion(dpy, 0, 0);
XFixesCopyRegion(dpy, w->border_clip, region);
}
w->prev_trans = t;
t = w;
}
#if DEBUG_REPAINT
printf("\n");
fflush(stdout);
#endif
XFixesSetPictureClipRegion(dpy,
root_buffer, 0, 0, region);
paint_root(dpy);
for (w = t; w; w = w->prev_trans) {
XFixesSetPictureClipRegion(dpy,
root_buffer, 0, 0, w->border_clip);
if (win_type_shadow[w->window_type]) {
XRenderComposite(
dpy, PictOpOver, black_picture, w->shadow,
root_buffer, 0, 0, 0, 0,
w->a.x + w->shadow_dx, w->a.y + w->shadow_dy,
w->shadow_width, w->shadow_height);
}
if (w->opacity != OPAQUE && !w->alpha_pict) {
w->alpha_pict = 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->alpha_pict,
root_buffer, 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->alpha_pict,
root_buffer, 0, 0, 0, 0,
x, y, wid, hei);
}
XFixesDestroyRegion(dpy, w->border_clip);
w->border_clip = None;
}
XFixesDestroyRegion(dpy, region);
if (root_buffer != root_picture) {
XFixesSetPictureClipRegion(dpy, root_buffer, 0, 0, None);
XRenderComposite(
dpy, PictOpSrc, root_buffer, None,
root_picture, 0, 0, 0, 0,
0, 0, root_width, root_height);
}
}
static void
add_damage(Display *dpy, XserverRegion damage) {
if (all_damage) {
XFixesUnionRegion(dpy, all_damage, all_damage, damage);
XFixesDestroyRegion(dpy, damage);
} else {
all_damage = 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 {
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);
}
add_damage(dpy, parts);
w->damaged = 1;
}
#if 0
static const char*
wintype_name(wintype type) {
const char *t;
switch (type) {
case WINTYPE_DESKTOP:
t = "desktop";
break;
case WINTYPE_DOCK:
t = "dock";
break;
case WINTYPE_TOOLBAR:
t = "toolbar";
break;
case WINTYPE_MENU:
t = "menu";
break;
case WINTYPE_UTILITY:
t = "utility";
break;
case WINTYPE_SPLASH:
t = "slash";
break;
case WINTYPE_DIALOG:
t = "dialog";
break;
case WINTYPE_NORMAL:
t = "normal";
break;
case WINTYPE_DROPDOWN_MENU:
t = "dropdown";
break;
case WINTYPE_POPUP_MENU:
t = "popup";
break;
case WINTYPE_TOOLTIP:
t = "tooltip";
break;
case WINTYPE_NOTIFY:
t = "notification";
break;
case WINTYPE_COMBO:
t = "combo";
break;
case WINTYPE_DND:
t = "dnd";
break;
default:
t = "unknown";
break;
}
return t;
}
#endif
static wintype
get_wintype_prop(Display * dpy, Window w) {
Atom actual;
wintype ret;
int format;
unsigned long n, left, off;
unsigned char *data;
ret = (wintype) - 1;
off = 0;
do {
set_ignore(dpy, NextRequest(dpy));
int result = XGetWindowProperty(
dpy, w, win_type_atom, off, 1L, False, XA_ATOM,
&actual, &format, &n, &left, &data);
if (result != Success) break;
if (data != None) {
int i;
for (i = 0; i < NUM_WINTYPES; ++i) {
Atom a;
memcpy(&a, data, sizeof(Atom));
if (a == win_type[i]) {
/* known type */
ret = i;
break;
}
}
XFree((void *) data);
}
++off;
} while (left >= 4 && ret == (wintype) - 1);
return ret;
}
static wintype
determine_wintype(Display *dpy, Window w, Window top) {
Window root_return, parent_return;
Window *children = NULL;
unsigned int nchildren, i;
wintype type;
type = get_wintype_prop(dpy, w);
if (type != (wintype) - 1) return type;
set_ignore(dpy, NextRequest(dpy));
if (!XQueryTree(dpy, w, &root_return, &parent_return,
&children, &nchildren)) {
/* XQueryTree failed. */
if (children) XFree((void *)children);
return (wintype) - 1;
}
for (i = 0; i < nchildren; i++) {
type = determine_wintype(dpy, children[i], top);
if (type != (wintype) - 1) return type;
}
if (children) {
XFree((void *)children);
}
if (w != top) {
return (wintype) - 1;
} else {
return WINTYPE_NORMAL;
}
}
static unsigned int
get_opacity_prop(Display *dpy, win *w, unsigned int def);
static void
configure_win(Display *dpy, XConfigureEvent *ce);
static void
map_win(Display *dpy, Window id,
unsigned long sequence, Bool fade) {
win *w = find_win(dpy, id);
if (!w) return;
w->a.map_state = IsViewable;
w->window_type = determine_wintype(dpy, w->id, w->id);
#if 0
printf("window 0x%x type %s\n",
w->id, wintype_name(w->window_type));
#endif
/* select before reading the property
so that no property changes are lost */
XSelectInput(dpy, id, PropertyChangeMask | FocusChangeMask);
// this causes problems for inactive transparency
//w->opacity = get_opacity_prop(dpy, w, OPAQUE);
determine_mode(dpy, w);
#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 && win_type_fade[w->window_type]) {
set_fade(
dpy, w, 0, get_opacity_percent(dpy, w),
fade_in_step, 0, True, True);
}
/* if any configure events happened while
the window was unmapped, then configure
the window to its correct place */
if (w->need_configure) {
configure_win(dpy, &w->queue_configure);
}
}
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;
}
if (w->border_size) {
set_ignore(dpy, NextRequest(dpy));
XFixesDestroyRegion(dpy, w->border_size);
w->border_size = None;
}
if (w->shadow) {
XRenderFreePicture(dpy, w->shadow);
w->shadow = None;
}
if (w->border_clip) {
XFixesDestroyRegion(dpy, w->border_clip);
w->border_clip = None;
}
clip_changed = True;
}
#if HAS_NAME_WINDOW_PIXMAP
static void
unmap_callback(Display *dpy, win *w) {
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;
/* don't care about properties anymore */
set_ignore(dpy, NextRequest(dpy));
XSelectInput(dpy, w->id, 0);
#if HAS_NAME_WINDOW_PIXMAP
if (w->pixmap && fade && win_type_fade[w->window_type]) {
set_fade(dpy, w, w->opacity * 1.0 / OPAQUE, 0.0,
fade_out_step, unmap_callback, 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, opacity_atom, 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 = win_type_opacity[w->window_type];
unsigned int opacity =
get_opacity_prop(dpy, w, (unsigned int)(OPAQUE * def));
return opacity * 1.0 / OPAQUE;
}
static void
determine_mode(Display *dpy, win *w) {
int mode;
XRenderPictFormat *format;
/* if trans prop == -1 fall back on previous tests*/
if (w->alpha_pict) {
XRenderFreePicture(dpy, w->alpha_pict);
w->alpha_pict = None;
}
if (w->shadow_pict) {
XRenderFreePicture(dpy, w->shadow_pict);
w->shadow_pict = 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 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 && !(*p)->destroyed)
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);
set_ignore(dpy, NextRequest(dpy));
new->damage = XDamageCreate(dpy, id, XDamageReportNonEmpty);
}
new->alpha_pict = None;
new->shadow_pict = None;
new->border_size = 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->destroyed = False;
new->need_configure = False;
new->border_clip = None;
new->prev_trans = 0;
new->next = *p;
*p = new;
if (new->a.map_state == IsViewable) {
new->window_type = determine_wintype(dpy, id, id);
if (inactive_transparency && new->window_type == WINTYPE_NORMAL) {
new->opacity = (unsigned long)((double)0.5 * OPAQUE);
}
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 && !(*prev)->destroyed)
break;
}
w->next = *prev;
*prev = w;
}
}
static void
configure_win(Display *dpy, XConfigureEvent *ce) {
win *w = find_win(dpy, ce->window);
XserverRegion damage = None;
if (!w) {
if (ce->window == root) {
if (root_buffer) {
XRenderFreePicture(dpy, root_buffer);
root_buffer = None;
}
root_width = ce->width;
root_height = ce->height;
}
return;
}
if (w->a.map_state == IsUnmapped) {
/* save the configure event for when the window maps */
w->need_configure = True;
w->queue_configure = *ce;
} else {
w->need_configure = False;
#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;
if (w->a.map_state != IsUnmapped && damage) {
XserverRegion extents = win_extents(dpy, w);
XFixesUnionRegion(dpy, damage, damage, extents);
XFixesDestroyRegion(dpy, extents);
add_damage(dpy, damage);
}
clip_changed = True;
}
w->a.override_redirect = ce->override_redirect;
restack_win(dpy, w, ce->above);
}
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);
clip_changed = True;
}
static void
finish_destroy_win(Display *dpy, Window id) {
win **prev, *w;
for (prev = &list; (w = *prev); prev = &w->next)
if (w->id == id && w->destroyed) {
finish_unmap_win(dpy, w);
*prev = w->next;
if (w->alpha_pict) {
XRenderFreePicture(dpy, w->alpha_pict);
w->alpha_pict = None;
}
if (w->shadow_pict) {
XRenderFreePicture(dpy, w->shadow_pict);
w->shadow_pict = None;
}
/* fix leak, from freedesktop repo */
if (w->shadow) {
XRenderFreePicture (dpy, w->shadow);
w->shadow = 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) {
finish_destroy_win(dpy, w->id);
}
#endif
static void
destroy_win(Display *dpy, Window id, Bool fade) {
win *w = find_win(dpy, id);
if (w) w->destroyed = True;
#if HAS_NAME_WINDOW_PIXMAP
if (w && w->pixmap && fade && win_type_fade[w->window_type]) {
set_fade(dpy, w, w->opacity * 1.0 / OPAQUE,
0.0, fade_out_step, destroy_callback,
False, True);
} else
#endif
{
finish_destroy_win(dpy, id);
}
}
#if 0
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);
}
}
#endif
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) {
clip_changed = True;
if (win_type_fade[w->window_type]) {
set_fade(dpy, w, 0, get_opacity_percent(dpy, w),
fade_in_step, 0, True, True);
}
w->usable = True;
}
}
if (w->usable)
#endif
repair_win(dpy, w);
}
static int
error(Display *dpy, XErrorEvent *ev) {
int o;
const 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 (%s) request %d minor %d serial %lu\n",
ev->error_code, name, 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);
}
#if DEBUG_EVENTS
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;
}
}
#endif
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 "
"Which display should be managed.\n");
fprintf(stderr,
" -r radius\n "
"The blur radius for shadows. (default 12)\n");
fprintf(stderr,
" -o opacity\n "
"The translucency for shadows. (default .75)\n");
fprintf(stderr,
" -l left-offset\n "
"The left offset for shadows. (default -15)\n");
fprintf(stderr,
" -t top-offset\n "
"The top offset for shadows. (default -15)\n");
fprintf(stderr,
" -I fade-in-step\n "
"Opacity change between steps while fading in. (default 0.028)\n");
fprintf(stderr,
" -O fade-out-step\n "
"Opacity change between steps while fading out. (default 0.03)\n");
fprintf(stderr,
" -D fade-delta-time\n "
"The time between steps in a fade in milliseconds. (default 10)\n");
fprintf(stderr,
" -m opacity\n "
"The opacity for menus. (default 1.0)\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,
" -S\n "
"Enable synchronous operation (for debugging).\n");
exit(1);
}
static void
register_cm(int scr) {
Window w;
Atom a;
char *buf;
int len, s;
if (scr < 0) return;
w = XCreateSimpleWindow(
dpy, RootWindow(dpy, 0),
0, 0, 1, 1, 0, None, None);
Xutf8SetWMProperties(
dpy, w, "xcompmgr", "xcompmgr",
NULL, 0, NULL, NULL, NULL);
len = strlen(REGISTER_PROP) + 2;
s = scr;
while (s >= 10) {
++len;
s /= 10;
}
buf = malloc(len);
snprintf(buf, len, REGISTER_PROP"%d", scr);
a = XInternAtom(dpy, buf, False);
free(buf);
XSetSelectionOwner(dpy, a, w, 0);
}
int
main(int argc, char **argv) {
XEvent ev;
Window root_return, parent_return;
Window *children;
unsigned int nchildren;
int i;
XRenderPictureAttributes pa;
XRectangle *expose_rects = 0;
int size_expose = 0;
int n_expose = 0;
struct pollfd ufd;
int p;
int composite_major, composite_minor;
char *display = 0;
int o;
Bool no_dock_shadow = False;
for (i = 0; i < NUM_WINTYPES; ++i) {
win_type_fade[i] = False;
win_type_shadow[i] = True;
win_type_opacity[i] = 1.0;
}
/* don't bother to draw a shadow for the desktop */
win_type_shadow[WINTYPE_DESKTOP] = False;
while ((o = getopt(argc, argv, "D:I:O:d:r:o:m:l:t:iscnfFCaS")) != -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 'C':
no_dock_shadow = True;
break;
case 'm':
win_type_opacity[WINTYPE_DROPDOWN_MENU] = atof(optarg);
win_type_opacity[WINTYPE_POPUP_MENU] = atof(optarg);
break;
case 'f':
for (i = 0; i < NUM_WINTYPES; ++i) {
win_type_fade[i] = True;
}
break;
case 'F':
fade_trans = True;
break;
case 'S':
synchronize = True;
break;
case 'r':
shadow_radius = atoi(optarg);
break;
case 'o':
shadow_opacity = atof(optarg);
break;
case 'l':
shadow_offset_x = atoi(optarg);
break;
case 't':
shadow_offset_y = atoi(optarg);
break;
case 'i':
inactive_transparency = True;
break;
case 'c':
case 'n':
case 'a':
case 's':
/* legacy */
break;
default:
usage(argv[0]);
break;
}
}
if (no_dock_shadow) {
win_type_shadow[WINTYPE_DOCK] = False;
}
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) {
has_name_pixmap = 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(scr);
/* get atoms */
opacity_atom = XInternAtom(dpy,
"_NET_WM_WINDOW_OPACITY", False);
win_type_atom = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE", False);
win_type[WINTYPE_DESKTOP] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_DESKTOP", False);
win_type[WINTYPE_DOCK] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_DOCK", False);
win_type[WINTYPE_TOOLBAR] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_TOOLBAR", False);
win_type[WINTYPE_MENU] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_MENU", False);
win_type[WINTYPE_UTILITY] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_UTILITY", False);
win_type[WINTYPE_SPLASH] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_SPLASH", False);
win_type[WINTYPE_DIALOG] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_DIALOG", False);
win_type[WINTYPE_NORMAL] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_NORMAL", False);
win_type[WINTYPE_DROPDOWN_MENU] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_DROPDOWN_MENU", False);
win_type[WINTYPE_POPUP_MENU] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_POPUP_MENU", False);
win_type[WINTYPE_TOOLTIP] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_TOOLTIP", False);
win_type[WINTYPE_NOTIFY] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_NOTIFICATION", False);
win_type[WINTYPE_COMBO] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_COMBO", False);
win_type[WINTYPE_DND] = XInternAtom(dpy,
"_NET_WM_WINDOW_TYPE_DND", False);
pa.subwindow_mode = IncludeInferiors;
gaussian_map = make_gaussian_map(dpy, shadow_radius);
presum_gaussian(gaussian_map);
root_width = DisplayWidth(dpy, scr);
root_height = DisplayHeight(dpy, scr);
root_picture = XRenderCreatePicture(dpy, root,
XRenderFindVisualFormat(dpy, DefaultVisual(dpy, scr)),
CPSubwindowMode, &pa);
black_picture = solid_picture(dpy, True, 1, 0, 0, 0);
all_damage = None;
clip_changed = True;
XGrabServer(dpy);
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;
paint_all(dpy, None);
for (;;) {
/* dump_wins(); */
do {
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
switch (ev.type) {
case FocusIn: {
if (!inactive_transparency) break;
win *fw = find_win(dpy, ev.xfocus.window);
if (fw->window_type == WINTYPE_NORMAL) {
fw->opacity = OPAQUE;
determine_mode(dpy, fw);
}
break;
}
case FocusOut: {
if (!inactive_transparency) break;
win *fw = find_win(dpy, ev.xfocus.window);
if (fw->window_type == WINTYPE_NORMAL) {
fw->opacity = (unsigned long)((double)0.5 * OPAQUE);
determine_mode(dpy, fw);
}
break;
}
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);
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, 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; background_props[p]; p++) {
if (ev.xproperty.atom ==
XInternAtom(dpy, background_props[p], False)) {
if (root_tile) {
XClearArea(dpy, root, 0, 0, 0, 0, True);
XRenderFreePicture(dpy, root_tile);
root_tile = None;
break;
}
}
}
/* check if Trans property was changed */
if (ev.xproperty.atom == opacity_atom) {
/* reset mode and redraw window */
win * w = find_win(dpy, ev.xproperty.window);
if (w) {
if (fade_trans) {
set_fade(dpy, w,
w->opacity * 1.0 / OPAQUE,
get_opacity_percent(dpy, w),
fade_out_step, 0, 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;
if (w->extents != None)
XFixesDestroyRegion(dpy, w->extents);
/* rebuild the shadow */
w->extents = win_extents(dpy, w);
}
}
}
}
break;
default:
if (ev.type == damage_event + XDamageNotify) {
damage_win(dpy, (XDamageNotifyEvent *)&ev);
}
break;
}
} while (QLength(dpy));
if (all_damage) {
static int paint;
paint_all(dpy, all_damage);
paint++;
XSync(dpy, False);
all_damage = None;
clip_changed = False;
}
}
}
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