mirror of
https://github.com/fastfetch-cli/fastfetch.git
synced 2026-09-13 02:42:09 +02:00
Linus Dierheimer
87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
#include "displayserver_linux.h"
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#include <dirent.h>
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static void parseDRM(FFDisplayServerResult* result)
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{
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const char* drmDirPath = "/sys/class/drm/";
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DIR* dirp = opendir(drmDirPath);
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if(dirp == NULL)
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return;
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FFstrbuf drmDir;
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ffStrbufInitA(&drmDir, 64);
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ffStrbufAppendS(&drmDir, drmDirPath);
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uint32_t drmDirLength = drmDir.length;
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struct dirent* entry;
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while((entry = readdir(dirp)) != NULL)
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{
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ffStrbufAppendS(&drmDir, entry->d_name);
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ffStrbufAppendS(&drmDir, "/modes");
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FILE* modeFile = fopen(drmDir.chars, "r");
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if(modeFile == NULL)
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{
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ffStrbufSubstrBefore(&drmDir, drmDirLength);
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continue;
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}
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FFResolutionResult* resolution = ffListAdd(&result->resolutions);
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resolution->width = 0;
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resolution->height = 0;
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resolution->refreshRate = 0;
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int scanned = fscanf(modeFile, "%ux%u", &resolution->width, &resolution->height);
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if(scanned < 2 || resolution->width == 0 || resolution->height == 0)
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--result->resolutions.length;
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fclose(modeFile);
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ffStrbufSubstrBefore(&drmDir, drmDirLength);
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}
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closedir(dirp);
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ffStrbufDestroy(&drmDir);
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}
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void ffConnectDisplayServerImpl(FFDisplayServerResult* ds, const FFinstance* instance)
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{
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ffStrbufInit(&ds->wmProcessName);
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ffStrbufInit(&ds->wmPrettyName);
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ffStrbufInit(&ds->wmProtocolName);
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ffStrbufInit(&ds->deProcessName);
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ffStrbufInit(&ds->dePrettyName);
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ffStrbufInit(&ds->deVersion);
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ffListInitA(&ds->resolutions, sizeof(FFResolutionResult), 4);
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//We try wayland as our prefered display server, as it supports the most features.
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//This method can't detect the name of our WM / DE
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ffdsConnectWayland(instance, ds);
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//Try the x11 libs, from most feature rich to least.
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//We use the resolution list to detect if a connection is needed.
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//They respect wmProtocolName, and only detect resolution if it is set.
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if(ds->resolutions.length == 0)
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ffdsConnectXcbRandr(instance, ds);
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if(ds->resolutions.length == 0)
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ffdsConnectXrandr(instance, ds);
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if(ds->resolutions.length == 0)
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ffdsConnectXcb(instance, ds);
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if(ds->resolutions.length == 0)
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ffdsConnectXlib(instance, ds);
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//This resolution detection method is display server independent.
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//Use it if all connections failed
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if(ds->resolutions.length == 0)
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parseDRM(ds);
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//This fills in missing information about WM / DE by using env vars and iterating processes
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ffdsDetectWMDE(instance, ds);
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}
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