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randomwallpaper: rewrite to use libxcb

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LordMZTE 2023-08-12 22:06:23 +02:00
parent 34cdd162c3
commit c8d9cc82d9
Signed by: LordMZTE
GPG key ID: B64802DC33A64FF6
4 changed files with 19 additions and 17 deletions
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4
scripts/randomwallpaper/build.zig
View file

@ -12,8 +12,8 @@ pub fn build(b: *std.build.Builder) void {
});
exe.linkLibC();
exe.linkSystemLibrary("x11");
exe.linkSystemLibrary("xinerama");
exe.linkSystemLibrary("xcb");
exe.linkSystemLibrary("xcb-xinerama");
exe.strip = mode != .Debug;

5
scripts/randomwallpaper/src/ffi.zig
View file

@ -1,5 +1,4 @@
pub const c = @cImport({
@cInclude("stdlib.h");
@cInclude("X11/Xlib.h");
@cInclude("X11/extensions/Xinerama.h");
@cInclude("xcb/xcb.h");
@cInclude("xcb/xinerama.h");
});

1
scripts/randomwallpaper/src/main.zig
View file

@ -1,7 +1,6 @@
const std = @import("std");
const xinerama = @import("xinerama.zig");
const Walker = @import("Walker.zig");
const c = @import("ffi.zig").c;
pub const std_options = struct {
pub const log_level = .debug;

26
scripts/randomwallpaper/src/xinerama.zig
View file

@ -1,19 +1,23 @@
const std = @import("std");
const c = @import("ffi.zig").c;
pub fn getHeadCount() !i32 {
const display_name = c.getenv("DISPLAY") orelse return error.DisplayNotSet;
const display = c.XOpenDisplay(display_name) orelse return error.CouldntOpenDisplay;
pub fn getHeadCount() !u32 {
const connection = c.xcb_connect(null, null).?;
if (c.xcb_connection_has_error(connection) > 0) return error.ConnectionFailed;
defer c.xcb_disconnect(connection);
defer _ = c.XCloseDisplay(display);
var err: ?*c.xcb_generic_error_t = null;
if (c.XineramaIsActive(display) == 0) {
return error.XineramaError;
}
const is_active_cookie = c.xcb_xinerama_is_active(connection);
const is_active_reply = c.xcb_xinerama_is_active_reply(connection, is_active_cookie, &err);
if (err) |_| return error.FailedToQueryXinerama;
defer std.c.free(is_active_reply);
if (is_active_reply.*.state == 0) return error.XineramaInactive;
var screens: c_int = 0;
const info = c.XineramaQueryScreens(display, &screens) orelse return error.XineramaError;
defer _ = c.XFree(info);
const query_screens_cookie = c.xcb_xinerama_query_screens(connection);
const query_screens_reply = c.xcb_xinerama_query_screens_reply(connection, query_screens_cookie, &err);
if (err) |_| return error.FailedToQueryXinerama;
defer std.c.free(query_screens_reply);
return screens;
return query_screens_reply.*.number;
}