diff options
Diffstat (limited to 'patch/bar_winicon.c')
| -rw-r--r-- | patch/bar_winicon.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/patch/bar_winicon.c b/patch/bar_winicon.c new file mode 100644 index 0000000..5ae7fe7 --- /dev/null +++ b/patch/bar_winicon.c @@ -0,0 +1,146 @@ +static uint32_t tmpicon[ICONSIZE * ICONSIZE]; + +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); +} + +#if BAR_ALPHA_PATCH +static uint8_t div255(uint16_t x) { return (x*0x8081u) >> 23u; } +static uint32_t blend(uint32_t p1rb, uint32_t p1g, uint8_t p1a, 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) | div255(~a * 255u + a * p1a) << 24u; +} + +void +drw_img(Drw *drw, int x, int y, XImage *img, uint32_t *tmp) +{ + if (!drw || !drw->scheme) + return; + uint32_t *data = (uint32_t *)img->data, p = drw->scheme[ColBg].pixel, + prb = p & 0xFF00FFu, pg = p & 0x00FF00u; + uint8_t pa = p >> 24u; + int icsz = img->width * img->height, i; + for (i = 0; i < icsz; ++i) tmp[i] = blend(prb, pg, pa, 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; +} +#else +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) | ((~a) << 24u); +} + +void +drw_img(Drw *drw, int x, int y, XImage *img, uint32_t *tmp) +{ + if (!drw || !drw->scheme) + return; + 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] = 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; +} +#endif // BAR_ALPHA_PATCH + +XImage * +geticonprop(Window win) +{ + int format; + unsigned long n, extra, *p = NULL; + Atom real; + + if (XGetWindowProperty(dpy, win, netatom[NetWMIcon], 0L, LONG_MAX, False, AnyPropertyType, + &real, &format, &n, &extra, (unsigned char **)&p) != Success) + return NULL; + if (n == 0 || format != 32) { XFree(p); return NULL; } + + unsigned long *bstp = NULL; + uint32_t w, h, sz; + + { + const unsigned long *end = p + n; + unsigned long *i; + uint32_t bstd = UINT32_MAX, d, m; + for (i = p; i < end - 1; i += sz) { + if ((w = *i++) > UINT16_MAX || (h = *i++) > UINT16_MAX) { XFree(p); return NULL; } + if ((sz = w * h) > end - i) break; + if ((m = w > h ? w : h) >= ICONSIZE && (d = m - ICONSIZE) < bstd) { bstd = d; bstp = i; } + } + if (!bstp) { + for (i = p; i < end - 1; i += sz) { + if ((w = *i++) > UINT16_MAX || (h = *i++) > UINT16_MAX) { XFree(p); return NULL; } + if ((sz = w * h) > end - i) break; + if ((d = ICONSIZE - (w > h ? w : h)) < bstd) { bstd = d; bstp = i; } + } + } + if (!bstp) { XFree(p); return NULL; } + } + + if ((w = *(bstp - 2)) == 0 || (h = *(bstp - 1)) == 0) { XFree(p); return NULL; } + + uint32_t icw, ich, icsz; + if (w <= h) { + ich = ICONSIZE; icw = w * ICONSIZE / h; + if (icw == 0) icw = 1; + } + else { + icw = ICONSIZE; ich = h * ICONSIZE / w; + if (ich == 0) ich = 1; + } + icsz = icw * ich; + + uint32_t i; +#if ULONG_MAX > UINT32_MAX + uint32_t *bstp32 = (uint32_t *)bstp; + for (sz = w * h, i = 0; i < sz; ++i) bstp32[i] = bstp[i]; +#endif + 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); 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); free(icbuf); return NULL; } + imlib_context_set_image(scaled); + imlib_image_set_has_alpha(1); + 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]); + #if BAR_ALPHA_PATCH + return XCreateImage(dpy, drw->visual, drw->depth, ZPixmap, 0, (char *)icbuf, icw, ich, 32, 0); + #else + return XCreateImage(dpy, DefaultVisual(dpy, screen), DefaultDepth(dpy, screen), ZPixmap, 0, (char *)icbuf, icw, ich, 32, 0); + #endif // BAR_ALPHA_PATCH +} + +void +freeicon(Client *c) +{ + if (c->icon) { + XDestroyImage(c->icon); + c->icon = NULL; + } +} + +void +updateicon(Client *c) +{ + freeicon(c); + c->icon = geticonprop(c->win); +}
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