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more detailed logging for thumbnails

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This commit is contained in:
Chris Lee 2019-03-03 22:48:47 +01:00
parent 6c36f79aae
commit a859727ff3
1 changed files with 42 additions and 6 deletions
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48
src/util/window.c
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@ -391,13 +391,27 @@ void smooth_thumbnail(cairo_surface_t *image_surface)
cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean use_shm)
{
cairo_surface_t *result = NULL;
XWindowAttributes wa;
XWindowAttributes wa = {};
if (!XGetWindowAttributes(server.display, win, &wa) || wa.width <= 0 || wa.height <= 0 ||
wa.map_state != IsViewable)
wa.map_state != IsViewable) {
if (debug_thumbnails) {
fprintf(stderr, "tint2: could not get thumbnail, invalid geometry %d x %d\n",
wa.width, wa.height);
}
goto err0;
}
if (window_is_iconified(win))
if (window_is_iconified(win)) {
if (debug_thumbnails) {
fprintf(stderr, "tint2: could not get thumbnail, minimized window\n");
}
goto err0;
}
if (debug_thumbnails) {
fprintf(stderr, "tint2: getting thumbnail for window with size %d x %d\n",
wa.width, wa.height);
}
size_t w, h;
w = (size_t)wa.width;
@ -415,8 +429,20 @@ cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean u
fw = tw;
ox = oy = 0;
}
if (!w || !h || !tw || !th || !fw)
if (debug_thumbnails) {
fprintf(stderr,
"tint2: thumbnail size %zu x %zu, "
"proportional width %zu, offset %zu\n",
tw, th, fw, ox);
}
if (!w || !h || !tw || !th || !fw) {
if (debug_thumbnails) {
fprintf(stderr, "tint2: could not get thumbnail, invalid thumbnail size: "
"%zu x %zu => %zu x %zu, %zu\n",
w, h, tw, th, fw);
}
goto err0;
}
XShmSegmentInfo shminfo;
XImage *ximg;
@ -462,8 +488,18 @@ cairo_surface_t *get_window_thumbnail_ximage(Window win, size_t size, gboolean u
}
XGetWindowAttributes(server.display, win, &wa);
if (wa.map_state != IsViewable)
if (wa.map_state != IsViewable) {
if (debug_thumbnails) {
fprintf(stderr, "tint2: could not get thumbnail, window not viewable\n");
}
goto err4;
}
if (debug_thumbnails) {
fprintf(stderr,
"tint2: creating cairo surface with size %zu x %zu = %zu px\n",
tw, th, tw * th);
}
result = cairo_image_surface_create(CAIRO_FORMAT_RGB24, (int)tw, (int)th);
u_int32_t *data = (u_int32_t *)cairo_image_surface_get_data(result);
@ -562,7 +598,7 @@ err2:
err1:
if (ximg)
XDestroyImage(ximg);
err0:
err0:
return result;
}