[wiki] [sites] [dwm][patch][winicon] Bug fixes and optimizations || AdamYuan
commit cefaf8b9617b8e557909c686da06fb96a1a54245
Author: AdamYuan <y13916619121_AT_126.com>
Date: Tue Jul 13 11:17:12 2021 +0800
[dwm][patch][winicon] Bug fixes and optimizations
Fixed potential memory leak when imlib_create_image() fails
Implemented pre-multiplying alpha channel to speedup blending in drw_img()
diff --git a/dwm.suckless.org/patches/winicon/dwm-winicon-6.2-v1.2.diff b/dwm.suckless.org/patches/winicon/dwm-winicon-6.2-v1.2.diff
index becd45cd..b73cc11e 100644
--- a/dwm.suckless.org/patches/winicon/dwm-winicon-6.2-v1.2.diff
+++ b/dwm.suckless.org/patches/winicon/dwm-winicon-6.2-v1.2.diff
_AT_@ -30,7 +30,7 @@ index 6d36cb7..c5d08de 100644
# flags
CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
diff --git a/drw.c b/drw.c
-index 8fd1ca4..91454e1 100644
+index 8fd1ca4..bb6cfab 100644
--- a/drw.c
+++ b/drw.c
_AT_@ -2,6 +2,7 @@
_AT_@ -41,16 +41,15 @@ index 8fd1ca4..91454e1 100644
#include <X11/Xlib.h>
#include <X11/Xft/Xft.h>
-_AT_@ -378,6 +379,27 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
+_AT_@ -378,6 +379,26 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
return x + (render ? w : 0);
}
-+static uint32_t blend32(uint32_t p1, uint32_t p2) {
-+ uint32_t a = p2 >> 24;
-+ uint32_t na = 255 - a;
-+ uint32_t rb = ((na * (p1 & 0x00ff00ffu)) + (a * (p2 & 0x00ff00ffu))) >> 8;
-+ uint32_t ag = (na * ((p1 & 0xff00ff00u) >> 8)) + (a * (0x01000000u | ((p2 & 0x0000ff00u) >> 8)));
-+ return ((rb & 0x00ff00ffu) | (ag & 0xff00ff00u));
++static uint32_t blend(uint32_t p1rb, uint32_t p1g, uint32_t p2) {
++ uint8_t a = p2 >> 24u;
++ uint32_t rb = (p2 & 0xFF00FFu) + ( (a * p1rb) >> 8u );
++ uint32_t g = (p2 & 0x00FF00u) + ( (a * p1g) >> 8u );
++ return (rb & 0xFF00FFu) | (g & 0x00FF00u);
+}
+
+void
_AT_@ -58,12 +57,12 @@ index 8fd1ca4..91454e1 100644
+{
+ if (!drw || !drw->scheme)
+ return;
-+ uint32_t *data = (uint32_t *)img->data, bt = drw->scheme[ColBg].pixel;
++ uint32_t *data = (uint32_t *)img->data, p = drw->scheme[ColBg].pixel, prb = p & 0xFF00FFu, pg = p & 0x00FF00u;
+ int icsz = img->width * img->height, i;
-+ for (i = 0; i < icsz; ++i) tmp[i] = blend32(bt, data[i]);
-+ img->data = (char *)tmp;
++ for (i = 0; i < icsz; ++i) tmp[i] = blend(prb, pg, data[i]);
++ img->data = (char *) tmp;
+ XPutImage(drw->dpy, drw->drawable, drw->gc, img, 0, 0, x, y, img->width, img->height);
-+ img->data = (char *)data;
++ img->data = (char *) data;
+}
+
void
_AT_@ -82,7 +81,7 @@ index 4bcd5ad..07b6433 100644
/* Map functions */
void drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h);
diff --git a/dwm.c b/dwm.c
-index 4465af1..b7690f8 100644
+index 4465af1..173504b 100644
--- a/dwm.c
+++ b/dwm.c
_AT_@ -28,6 +28,8 @@
_AT_@ -154,10 +153,17 @@ index 4465af1..b7690f8 100644
if (m->sel->isfloating)
drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
} else {
-_AT_@ -899,6 +908,78 @@ getstate(Window w)
+_AT_@ -899,6 +908,87 @@ getstate(Window w)
return result;
}
++static uint32_t prealpha(uint32_t p) {
++ uint8_t a = p >> 24u;
++ uint32_t rb = (a * (p & 0xFF00FFu)) >> 8u;
++ uint32_t g = (a * (p & 0x00FF00u)) >> 8u;
++ return (rb & 0xFF00FFu) | (g & 0x00FF00u) | ((~a) << 24u);
++}
++
+XImage *
+geticonprop(Window win)
+{
_AT_@ -195,7 +201,7 @@ index 4465af1..b7690f8 100644
+
+ w = *(bstp - 2); h = *(bstp - 1);
+
-+ int icw, ich;
++ int icw, ich, icsz;
+ if (w <= h) {
+ ich = ICONSIZE; icw = w * ICONSIZE / h;
+ if (icw < 1) icw = 1;
_AT_@ -204,36 +210,38 @@ index 4465af1..b7690f8 100644
+ icw = ICONSIZE; ich = h * ICONSIZE / w;
+ if (ich < 1) ich = 1;
+ }
++ icsz = icw * ich;
+
-+ unsigned char *icbuf = malloc(icw * ich << 2); if(!icbuf) { XFree(p); return NULL; }
++ int i;
+#if ULONG_MAX > UINT32_MAX
-+ int i, sz = w * h;
++ int sz = w * h;
+ uint32_t *bstp32 = (uint32_t *)bstp;
+ for (i = 0; i < sz; ++i) bstp32[i] = bstp[i];
+#endif
-+ if (w == icw && h == ich) memcpy(icbuf, bstp, icw * ich << 2);
++ uint32_t *icbuf = malloc(icsz << 2); if(!icbuf) { XFree(p); return NULL; }
++ if (w == icw && h == ich) memcpy(icbuf, bstp, icsz << 2);
+ else {
+ Imlib_Image origin = imlib_create_image_using_data(w, h, (DATA32 *)bstp);
-+ if (!origin) { XFree(p); return NULL; }
++ if (!origin) { XFree(p); free(icbuf); return NULL; }
+ imlib_context_set_image(origin);
+ imlib_image_set_has_alpha(1);
+ Imlib_Image scaled = imlib_create_cropped_scaled_image(0, 0, w, h, icw, ich);
+ imlib_free_image_and_decache();
-+ if (!scaled) { XFree(p); return NULL; }
++ if (!scaled) { XFree(p); free(icbuf); return NULL; }
+ imlib_context_set_image(scaled);
+ imlib_image_set_has_alpha(1);
-+ memcpy(icbuf, imlib_image_get_data_for_reading_only(), icw * ich << 2);
++ memcpy(icbuf, imlib_image_get_data_for_reading_only(), icsz << 2);
+ imlib_free_image_and_decache();
+ }
+ XFree(p);
-+
++ for (i = 0; i < icsz; ++i) icbuf[i] = prealpha(icbuf[i]);
+ return XCreateImage(dpy, DefaultVisual(dpy, screen), DefaultDepth(dpy, screen), ZPixmap, 0, (char *)icbuf, icw, ich, 32, 0);
+}
+
int
gettextprop(Window w, Atom atom, char *text, unsigned int size)
{
-_AT_@ -1030,6 +1111,8 @@ manage(Window w, XWindowAttributes *wa)
+_AT_@ -1030,6 +1120,8 @@ manage(Window w, XWindowAttributes *wa)
c->h = c->oldh = wa->height;
c->oldbw = wa->border_width;
_AT_@ -242,7 +250,7 @@ index 4465af1..b7690f8 100644
updatetitle(c);
if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
c->mon = t->mon;
-_AT_@ -1240,6 +1323,11 @@ propertynotify(XEvent *e)
+_AT_@ -1240,6 +1332,11 @@ propertynotify(XEvent *e)
if (c == c->mon->sel)
drawbar(c->mon);
}
_AT_@ -254,7 +262,7 @@ index 4465af1..b7690f8 100644
if (ev->atom == netatom[NetWMWindowType])
updatewindowtype(c);
}
-_AT_@ -1556,6 +1644,7 @@ setup(void)
+_AT_@ -1556,6 +1653,7 @@ setup(void)
netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
_AT_@ -262,7 +270,7 @@ index 4465af1..b7690f8 100644
netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
-_AT_@ -1746,6 +1835,15 @@ toggleview(const Arg *arg)
+_AT_@ -1746,6 +1844,15 @@ toggleview(const Arg *arg)
}
}
_AT_@ -278,7 +286,7 @@ index 4465af1..b7690f8 100644
void
unfocus(Client *c, int setfocus)
{
-_AT_@ -1767,6 +1865,7 @@ unmanage(Client *c, int destroyed)
+_AT_@ -1767,6 +1874,7 @@ unmanage(Client *c, int destroyed)
detach(c);
detachstack(c);
_AT_@ -286,7 +294,7 @@ index 4465af1..b7690f8 100644
if (!destroyed) {
wc.border_width = c->oldbw;
XGrabServer(dpy); /* avoid race conditions */
-_AT_@ -2001,6 +2100,13 @@ updatetitle(Client *c)
+_AT_@ -2001,6 +2109,13 @@ updatetitle(Client *c)
strcpy(c->name, broken);
}
diff --git a/dwm.suckless.org/patches/winicon/index.md b/dwm.suckless.org/patches/winicon/index.md
index a05789ad..6271f070 100644
--- a/dwm.suckless.org/patches/winicon/index.md
+++ b/dwm.suckless.org/patches/winicon/index.md
_AT_@ -27,7 +27,7 @@ Configuration
Download
--------
-* [dwm-winicon-6.2-v1.2.diff](dwm-winicon-6.2-v1.2.diff) (2021-07-11)
+* [dwm-winicon-6.2-v1.2.diff](dwm-winicon-6.2-v1.2.diff) (2021-07-13)
Author
------
Received on Tue Jul 13 2021 - 05:17:57 CEST
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: Tue Jul 13 2021 - 05:24:42 CEST