pictw_t *
simg_load(session_t *ps, const char *path, enum pict_posp_mode mode,
int twidth, int theight, enum align alg, enum align valg,
const XRenderColor *pc) {
pictw_t *result = NULL;
bool processed = false;
if (!path || !path[0]) { }
#ifdef CFG_LIBPNG
else if (str_endwith(path, ".png"))
result = spng_read(ps, path);
#endif
#ifdef CFG_JPEG
else if (str_endwith(path, ".jpg") || str_endwith(path, ".jpeg")
|| str_endwith(path, ".jpe"))
result = sjpg_read(ps, path);
#endif
#ifdef CFG_GIFLIB
else if (str_endwith(path, ".gif"))
result = sgif_read(ps, path);
#endif
if (!processed)
result = simg_postprocess(ps, result, mode, twidth, theight,
alg, valg, pc);
return result;
}
pictw_t *
simg_load_icon(session_t *ps, Window wid, int desired_size) {
pictw_t *pictw = NULL;
bool processed = false;
{
// _NET_WM_ICON
int best_width = 0, best_height = 0;
float best_scale = 1.0f, best_area = 0.0f;
const unsigned char *best_data = NULL;
winprop_t prop = wid_get_prop_adv(ps, wid, _NET_WM_ICON, 0, ICON_PROP_MAXLEN, XA_CARDINAL, 32);
if (prop.nitems) {
int width = 0, height = 0;
const long *end = prop.data32 + prop.nitems;
// Format: WIDTH HEIGHT DATA (32-bit)
int wanted_bytes = 0;
for (const long *p = prop.data32; p < end; p += wanted_bytes) {
if (p + 2 >= end) {
printfef("(%#010lx): %d trailing byte(s).", wid, (int) (end - p));
break;
}
width = p[0];
height = p[1];
if (width <= 0 || height <= 0) {
printfef("(%#010lx): (offset %d, width %d, height %d) Invalid width/height.",
wid, (int) (p - prop.data32), width, height);
break;
}
wanted_bytes = 2 + width * height;
if ((end - p) < wanted_bytes) {
printfef("(%#010lx): (offset %d, width %d, height %d) Not enough bytes (%d/%d).",
wid, (int) (p - prop.data32), width, height, (int) (end - p), wanted_bytes);
break;
}
// Prefer larger ones if possible
if (best_width >= desired_size && best_height >= desired_size
&& (width < desired_size || height < desired_size))
continue;
float scale = MAX(1.0f,
MIN((float) best_height / height, (float) best_width / width));
float area = width * height * scale * scale;
if (area > best_area) {
best_width = width;
best_height = height;
best_scale = scale;
best_area = area;
best_data = (const unsigned char *) (p + 2);
}
}
}
if (best_data) {
{
unsigned char *converted_data = simg_data32_from_long(
(const long *) best_data, best_width * best_height);
simg_data32_premultiply(converted_data, best_width * best_height);
pictw = simg_data_to_pictw(ps, best_width, best_height, 32, converted_data, 0);
if (converted_data != best_data)
free(converted_data);
}
if (!pictw)
printfef("(%#010lx): Failed to create picture.", wid);
/* if (pictw)
printfdf("(%#010lx): (offset %d, width %d, height %d) Loaded.",
wid, (int) (best_data - prop.data8), pictw->width, pictw->height); */
}
free_winprop(&prop);
}
if (pictw) goto simg_load_icon_end;
// WM_HINTS
// Our method probably fills 1-8 bit pixmaps as black instead of using
// "suitable background/foreground". I hope it isn't a problem, though.
{
XWMHints *h = XGetWMHints(ps->dpy, wid);
if (h && (IconPixmapHint & h->flags) && h->icon_pixmap)
pictw = simg_pixmap_to_pictw(ps, 0, 0, 0, h->icon_pixmap, h->icon_mask);
sxfree(h);
}
if (pictw) goto simg_load_icon_end;
// KWM_WIN_ICON
// Same issue as above.
{
winprop_t prop = wid_get_prop_adv(ps, wid, KWM_WIN_ICON, 0, 2, KWM_WIN_ICON, 32);
if (prop.nitems) {
Pixmap pxmap = prop.data32[0],
mask = (prop.nitems >= 2 ? prop.data32[1]: None);
if (pxmap)
pictw = simg_pixmap_to_pictw(ps, 0, 0, 0, pxmap, mask);
}
free_winprop(&prop);
}
if (pictw) goto simg_load_icon_end;
simg_load_icon_end:
// Post-processing
if (pictw && !processed) {
pictw = simg_postprocess(ps, pictw, PICTPOSP_SCALEK,
desired_size, desired_size, ALIGN_MID, ALIGN_MID, NULL);
/* printfdf("(%#010lx): (width %d, height %d) Processed.",
wid, pictw->width, pictw->height); */
}
return pictw;
}
