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#include "displayserver_linux.h"
#include "common/io.h"
#include "common/strutil.h"
#ifdef __FreeBSD__
#include "common/settings.h"
#endif
static void getWMProtocolNameFromEnv(FFDisplayServerResult* result) {
const char* env = getenv("XDG_SESSION_TYPE");
if (env) {
if (ffStrEqualsIgnCase(env, "wayland")) {
ffStrbufSetS(&result->wmProtocolName, FF_WM_PROTOCOL_WAYLAND);
} else if (ffStrEqualsIgnCase(env, "x11") || ffStrEqualsIgnCase(env, "xorg")) {
ffStrbufSetS(&result->wmProtocolName, FF_WM_PROTOCOL_X11);
} else if (ffStrEqualsIgnCase(env, "tty")) {
ffStrbufSetS(&result->wmProtocolName, FF_WM_PROTOCOL_TTY);
} else {
ffStrbufSetS(&result->wmProtocolName, env);
}
return;
}
if (getenv("WAYLAND_DISPLAY") != NULL || getenv("WAYLAND_SOCKET") != NULL) {
ffStrbufSetStatic(&result->wmProtocolName, FF_WM_PROTOCOL_WAYLAND);
return;
}
if (getenv("DISPLAY") != NULL) // XWayland also set this
{
ffStrbufSetStatic(&result->wmProtocolName, FF_WM_PROTOCOL_X11);
return;
}
env = getenv("TERM");
if (ffStrSet(env) && ffStrEqualsIgnCase(env, "linux")) {
ffStrbufSetStatic(&result->wmProtocolName, FF_WM_PROTOCOL_TTY);
return;
}
}
void ffConnectDisplayServerImpl(FFDisplayServerResult* ds) {
if (instance.config.general.dsForceDrm == FF_DS_FORCE_DRM_TYPE_FALSE) {
// We try wayland as our preferred display server, as it supports the most features.
// This method can't detect the name of our WM / DE
ffdsConnectWayland(ds);
// Try the x11 libs, from most feature rich to least.
// We use the display list to detect if a connection is needed.
// They respect wmProtocolName, and only detect display if it is set.
if (ds->displays.length == 0) {
ffdsConnectXcbRandr(ds);
}
if (ds->displays.length == 0) {
ffdsConnectXrandr(ds);
}
}
// This display detection method is display server independent.
// Use it if all connections failed
if (ds->displays.length == 0) {
ffdsConnectDrm(ds);
}
#ifdef __FreeBSD__
if (ds->displays.length == 0) {
FF_STRBUF_AUTO_DESTROY buf = ffStrbufCreate();
if (ffSettingsGetFreeBSDKenv("screen.width", &buf)) {
uint32_t width = (uint32_t) ffStrbufToUInt(&buf, 0);
if (width) {
ffStrbufClear(&buf);
if (ffSettingsGetFreeBSDKenv("screen.height", &buf)) {
uint32_t height = (uint32_t) ffStrbufToUInt(&buf, 0);
ffdsAppendDisplay(ds, width, height, 0, 0, 0, 0, 0, 0, NULL, FF_DISPLAY_TYPE_UNKNOWN, false, 0, 0, 0, "kenv");
}
}
}
}
#endif
if (ds->wmProtocolName.length == 0) {
getWMProtocolNameFromEnv(ds);
}
if (!ffStrbufEqualS(&ds->wmProtocolName, FF_WM_PROTOCOL_TTY)) {
// This fills in missing information about WM / DE by using env vars and iterating processes
ffdsDetectWMDE(ds);
}
}
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