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xcompmgr.c
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/*
* 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
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "options.h"
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/shape.h>
#include <getopt.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.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 */
Bool shaped;
XRectangle shape_bounds;
/* 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;
static win *list;
static fade *fades;
static int scr;
static Window root;
static Picture rootPicture;
static Picture rootBuffer;
static Picture overlayPicture;
static Picture blackPicture;
static Picture transBlackPicture;
static Picture rootTile;
static XserverRegion allDamage;
static Bool clipChanged;
#if HAS_NAME_WINDOW_PIXMAP
static Bool hasNamePixmap;
#endif
static int root_height, root_width;
static ignore *ignore_head, **ignore_tail = &ignore_head;
static int xfixes_event, xfixes_error;
static int damage_event, damage_error;
static int composite_event, composite_error;
static int render_event, render_error;
static int xshape_event, xshape_error;
static Bool synchronize;
static int composite_opcode;
/* find these once and be done with it */
static Atom opacityAtom;
static Atom winTypeAtom;
static Atom winDesktopAtom;
static Atom winDockAtom;
static Atom winToolbarAtom;
static Atom winMenuAtom;
static Atom winUtilAtom;
static Atom winSplashAtom;
static Atom winDialogAtom;
static 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
static 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 DEBUG_SHAPE 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);
static CompMode compMode = CompSimple;
static int shadowRadius = 12;
static int shadowOffsetX = -15;
static int shadowOffsetY = -15;
static double shadowOpacity = .75;
static double fade_in_step = 0.028;
static double fade_out_step = 0.03;
static int fade_delta = 10;
static int fade_time = 0;
static Bool fadeWindows = False;
static Bool excludeDockShadows = False;
static Bool fadeTrans = False;
static Bool autoRedirect = False;
/* For shadow precomputation */
static int Gsize = -1;
static unsigned char *shadowCorner = NULL;
static unsigned char *shadowTop = NULL;
static int get_time_in_milliseconds(void) {
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
static fade *find_fade(win *w) {
fade *f;
for (f = fades; f; f = f->next) {
if (f->w == w)
return f;
}
return NULL;
}
static 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;
}
}
static void cleanup_fade(Display *dpy, win *w) {
fade *f = find_fade(w);
if (f)
dequeue_fade(dpy, f);
}
static 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 = NULL;
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);
}
}
static 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;
}
static 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;
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 NULL;
ximage = XCreateImage(dpy, DefaultVisual(dpy, DefaultScreen(dpy)), 8, ZPixmap,
0, (char *)data, swidth, sheight, 8,
swidth * sizeof(unsigned char));
if (!ximage) {
free(data);
return NULL;
}
/*
* 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;
Picture shadowPicture;
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,
NULL);
if (!shadowPicture) {
XDestroyImage(shadowImage);
XFreePixmap(dpy, shadowPixmap);
return (Picture)None;
}
gc = XCreateGC(dpy, shadowPixmap, 0, NULL);
if (!gc) {
XDestroyImage(shadowImage);
XFreePixmap(dpy, shadowPixmap);
XRenderFreePicture(dpy, shadowPicture);
return (Picture)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;
}
static 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;
}
static 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;
}
}
static void set_ignore(Display *dpy, unsigned long sequence) {
ignore *i = malloc(sizeof(ignore));
if (!i)
return;
i->sequence = sequence;
i->next = NULL;
*ignore_tail = i;
ignore_tail = &i->next;
}
static 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 NULL;
}
static const char *backgroundProps[] = {
"_XROOTPMAP_ID",
"_XSETROOT_ID",
NULL,
};
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 = NULL;
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, NULL);
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, NULL, 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;
XFixesIntersectRegion(dpy, w->borderClip, w->borderClip, w->borderSize);
XFixesSetPictureClipRegion(dpy, rootBuffer, 0, 0, w->borderClip);
#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;
XFixesIntersectRegion(dpy, w->borderClip, w->borderClip, w->borderSize);
XFixesSetPictureClipRegion(dpy, rootBuffer, 0, 0, w->borderClip);
#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