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Fix behaviour when TrueColor / 24 bit depth is not available (#114)

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* Fix regression introduced in c7ca547 which made nsxiv not start in
  non-TrueColor X server.
* Introduce a new fix for embedding into tabbed-alpha. 
* Fixes a visual glitch from original sxiv when drawing transparent images in 8
  bit depth. In 8 bit PseudoColor, `.pixel` is just an index into the 256
  defined colors and thus trying to extract rgb bits from it would result in
  visual glitch. The values `.color.red` on the other hand and so on are always
  integers between 0 and 0xFFFF representing the color as expected.
* Use XColor for win_bg/fg and mrk_fg

Co-authored-by: NRK <nrk@disroot.org>
This commit is contained in:
miseran 2021-10-12 01:46:35 +02:00 committed by GitHub
parent 1449bfc5e9
commit cd710f583f
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 24 additions and 33 deletions
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4
image.c
View File

@ -577,7 +577,7 @@ void img_render(img_t *img)
int sx, sy, sw, sh; int sx, sy, sw, sh;
int dx, dy, dw, dh; int dx, dy, dw, dh;
Imlib_Image bg; Imlib_Image bg;
unsigned long c; XColor c;
win = img->win; win = img->win;
img_fit(img); img_fit(img);
@ -646,7 +646,7 @@ void img_render(img_t *img)
imlib_image_put_back_data(data); imlib_image_put_back_data(data);
} else { } else {
c = win->win_bg; c = win->win_bg;
imlib_context_set_color(c >> 16 & 0xFF, c >> 8 & 0xFF, c & 0xFF, 0xFF); imlib_context_set_color(c.red >> 8, c.green >> 8, c.blue >> 8, 0xFF);
imlib_image_fill_rectangle(0, 0, dw, dh); imlib_image_fill_rectangle(0, 0, dw, dh);
} }
imlib_blend_image_onto_image(img->im, 0, sx, sy, sw, sh, 0, 0, dw, dh); imlib_blend_image_onto_image(img->im, 0, sx, sy, sw, sh, 0, 0, dw, dh);

6
nsxiv.h
View File

@ -416,9 +416,9 @@ struct win {
Window xwin; Window xwin;
win_env_t env; win_env_t env;
unsigned long win_bg; XColor win_bg;
unsigned long win_fg; XColor win_fg;
unsigned long mrk_fg; XColor mrk_fg;
#if HAVE_LIBFONTS #if HAVE_LIBFONTS
XftColor bar_bg; XftColor bar_bg;
XftColor bar_fg; XftColor bar_fg;

8
thumbs.c
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@ -44,7 +44,7 @@ char* tns_cache_filepath(const char *filepath)
if (*filepath != '/') if (*filepath != '/')
return NULL; return NULL;
if (strncmp(filepath, cache_dir, strlen(cache_dir)) != 0) { if (strncmp(filepath, cache_dir, strlen(cache_dir)) != 0) {
/* don't cache images inside the cache directory! */ /* don't cache images inside the cache directory! */
len = strlen(cache_dir) + strlen(filepath) + 2; len = strlen(cache_dir) + strlen(filepath) + 2;
@ -469,14 +469,14 @@ void tns_mark(tns_t *tns, int n, bool mark)
if (n >= 0 && n < *tns->cnt && tns->thumbs[n].im != NULL) { if (n >= 0 && n < *tns->cnt && tns->thumbs[n].im != NULL) {
win_t *win = tns->win; win_t *win = tns->win;
thumb_t *t = &tns->thumbs[n]; thumb_t *t = &tns->thumbs[n];
unsigned long col = win->win_bg; unsigned long col = win->win_bg.pixel;
int x = t->x + t->w, y = t->y + t->h; int x = t->x + t->w, y = t->y + t->h;
win_draw_rect(win, x - 1, y + 1, 1, tns->bw, true, 1, col); win_draw_rect(win, x - 1, y + 1, 1, tns->bw, true, 1, col);
win_draw_rect(win, x + 1, y - 1, tns->bw, 1, true, 1, col); win_draw_rect(win, x + 1, y - 1, tns->bw, 1, true, 1, col);
if (mark) if (mark)
col = win->mrk_fg; col = win->mrk_fg.pixel;
win_draw_rect(win, x, y, tns->bw + 2, tns->bw + 2, true, 1, col); win_draw_rect(win, x, y, tns->bw + 2, tns->bw + 2, true, 1, col);
@ -490,7 +490,7 @@ void tns_highlight(tns_t *tns, int n, bool hl)
if (n >= 0 && n < *tns->cnt && tns->thumbs[n].im != NULL) { if (n >= 0 && n < *tns->cnt && tns->thumbs[n].im != NULL) {
win_t *win = tns->win; win_t *win = tns->win;
thumb_t *t = &tns->thumbs[n]; thumb_t *t = &tns->thumbs[n];
unsigned long col = hl ? win->win_fg : win->win_bg; unsigned long col = hl ? win->win_fg.pixel : win->win_bg.pixel;
int oxy = (tns->bw + 1) / 2 + 1, owh = tns->bw + 2; int oxy = (tns->bw + 1) / 2 + 1, owh = tns->bw + 2;
win_draw_rect(win, t->x - oxy, t->y - oxy, t->w + owh, t->h + owh, win_draw_rect(win, t->x - oxy, t->y - oxy, t->w + owh, t->h + owh,

39
window.c
View File

@ -80,12 +80,11 @@ void xft_alloc_color(const win_env_t *e, const char *name, XftColor *col)
} }
#endif /* HAVE_LIBFONTS */ #endif /* HAVE_LIBFONTS */
void win_alloc_color(const win_env_t *e, const char *name, unsigned long *pixel) void win_alloc_color(const win_env_t *e, const char *name, XColor *col)
{ {
XColor screen, exact; XColor screen;
if (!XAllocNamedColor(e->dpy, e->cmap, name, &screen, &exact)) if (!XAllocNamedColor(e->dpy, e->cmap, name, &screen, col))
error(EXIT_FAILURE, 0, "Error allocating color '%s'", name); error(EXIT_FAILURE, 0, "Error allocating color '%s'", name);
*pixel = exact.pixel;
} }
const char* win_res(XrmDatabase db, const char *name, const char *def) const char* win_res(XrmDatabase db, const char *name, const char *def)
@ -112,9 +111,6 @@ void win_init(win_t *win)
#endif #endif
char *res_man; char *res_man;
XrmDatabase db; XrmDatabase db;
XVisualInfo vis;
XWindowAttributes attr;
Window parent;
memset(win, 0, sizeof(win_t)); memset(win, 0, sizeof(win_t));
@ -125,19 +121,9 @@ void win_init(win_t *win)
e->scr = DefaultScreen(e->dpy); e->scr = DefaultScreen(e->dpy);
e->scrw = DisplayWidth(e->dpy, e->scr); e->scrw = DisplayWidth(e->dpy, e->scr);
e->scrh = DisplayHeight(e->dpy, e->scr); e->scrh = DisplayHeight(e->dpy, e->scr);
e->depth = DefaultDepth(e->dpy, e->scr);
parent = options->embed != 0 ? options->embed : RootWindow(e->dpy, e->scr); e->vis = DefaultVisual(e->dpy, e->scr);
e->cmap = DefaultColormap(e->dpy, e->scr);
if (options->embed == 0) {
e->depth = DefaultDepth(e->dpy, e->scr);
} else {
XGetWindowAttributes(e->dpy, parent, &attr);
e->depth = attr.depth;
}
XMatchVisualInfo(e->dpy, e->scr, e->depth, TrueColor, &vis);
e->vis = vis.visual;
e->cmap = XCreateColormap(e->dpy, parent, e->vis, None);
if (setlocale(LC_CTYPE, "") == NULL || XSupportsLocale() == 0) if (setlocale(LC_CTYPE, "") == NULL || XSupportsLocale() == 0)
error(0, 0, "No locale support"); error(0, 0, "No locale support");
@ -197,6 +183,7 @@ void win_open(win_t *win)
XWMHints hints; XWMHints hints;
pid_t pid; pid_t pid;
char hostname[256]; char hostname[256];
XSetWindowAttributes attrs;
e = &win->env; e = &win->env;
parent = options->embed != 0 ? options->embed : RootWindow(e->dpy, e->scr); parent = options->embed != 0 ? options->embed : RootWindow(e->dpy, e->scr);
@ -238,8 +225,12 @@ void win_open(win_t *win)
win->y = 0; win->y = 0;
} }
attrs.colormap = e->cmap;
attrs.border_pixel = 0;
win->xwin = XCreateWindow(e->dpy, parent, win->x, win->y, win->w, win->h, 0, win->xwin = XCreateWindow(e->dpy, parent, win->x, win->y, win->w, win->h, 0,
e->depth, InputOutput, e->vis, 0, NULL); e->depth, InputOutput, e->vis,
CWColormap | CWBorderPixel, &attrs);
if (win->xwin == None) if (win->xwin == None)
error(EXIT_FAILURE, 0, "Error creating X window"); error(EXIT_FAILURE, 0, "Error creating X window");
@ -317,7 +308,7 @@ void win_open(win_t *win)
win->buf.h = e->scrh; win->buf.h = e->scrh;
win->buf.pm = XCreatePixmap(e->dpy, win->xwin, win->buf.w, win->buf.h, e->depth); win->buf.pm = XCreatePixmap(e->dpy, win->xwin, win->buf.w, win->buf.h, e->depth);
XSetForeground(e->dpy, gc, win->win_bg); XSetForeground(e->dpy, gc, win->win_bg.pixel);
XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h); XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h);
XSetWindowBackgroundPixmap(e->dpy, win->xwin, win->buf.pm); XSetWindowBackgroundPixmap(e->dpy, win->xwin, win->buf.pm);
XMapWindow(e->dpy, win->xwin); XMapWindow(e->dpy, win->xwin);
@ -398,7 +389,7 @@ void win_clear(win_t *win)
win->buf.pm = XCreatePixmap(e->dpy, win->xwin, win->buf.pm = XCreatePixmap(e->dpy, win->xwin,
win->buf.w, win->buf.h, e->depth); win->buf.w, win->buf.h, e->depth);
} }
XSetForeground(e->dpy, gc, win->win_bg); XSetForeground(e->dpy, gc, win->win_bg.pixel);
XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h); XFillRectangle(e->dpy, win->buf.pm, gc, 0, 0, win->buf.w, win->buf.h);
} }
@ -455,7 +446,7 @@ void win_draw_bar(win_t *win)
XSetForeground(e->dpy, gc, win->bar_bg.pixel); XSetForeground(e->dpy, gc, win->bar_bg.pixel);
XFillRectangle(e->dpy, win->buf.pm, gc, 0, win->h, win->w, win->bar.h); XFillRectangle(e->dpy, win->buf.pm, gc, 0, win->h, win->w, win->bar.h);
XSetForeground(e->dpy, gc, win->win_bg); XSetForeground(e->dpy, gc, win->win_bg.pixel);
XSetBackground(e->dpy, gc, win->bar_bg.pixel); XSetBackground(e->dpy, gc, win->bar_bg.pixel);
if ((len = strlen(r->buf)) > 0) { if ((len = strlen(r->buf)) > 0) {