mirror of
https://github.com/fastfetch-cli/fastfetch.git
synced 2026-09-13 10:52:08 +02:00
李通洲
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
#include "displayserver_linux.h"
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#include "common/io/io.h"
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#include "util/edidHelper.h"
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#include "util/stringUtils.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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FF_STRBUF_AUTO_DESTROY drmDir = ffStrbufCreateA(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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if(ffStrEquals(entry->d_name, ".") || ffStrEquals(entry->d_name, ".."))
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continue;
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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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uint32_t width = 0, height = 0;
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int scanned = fscanf(modeFile, "%ux%u", &width, &height);
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if(scanned == 2 && width > 0 && height > 0)
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{
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ffStrbufSubstrBefore(&drmDir, drmDirLength);
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ffStrbufAppendS(&drmDir, entry->d_name);
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ffStrbufAppendS(&drmDir, "/edid");
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FF_STRBUF_AUTO_DESTROY name = ffStrbufCreate();
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uint8_t edidData[128];
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if(ffReadFileData(drmDir.chars, sizeof(edidData), edidData) == sizeof(edidData))
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ffEdidGetName(edidData, &name);
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else
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{
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const char* plainName = entry->d_name;
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if (ffStrStartsWith(plainName, "card"))
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{
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const char* tmp = strchr(plainName + strlen("card"), '-');
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if (tmp) plainName = tmp + 1;
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}
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ffStrbufAppendS(&name, plainName);
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}
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ffdsAppendDisplay(
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result,
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width, height,
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0,
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0, 0,
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0,
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&name,
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FF_DISPLAY_TYPE_UNKNOWN,
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false,
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0
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);
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}
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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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}
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void ffConnectDisplayServerImpl(FFDisplayServerResult* ds)
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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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ffListInitA(&ds->displays, sizeof(FFDisplayResult), 4);
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if (!instance.config.general.dsForceDrm)
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{
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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(ds);
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//Try the x11 libs, from most feature rich to least.
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//We use the display list to detect if a connection is needed.
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//They respect wmProtocolName, and only detect display if it is set.
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if(ds->displays.length == 0)
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ffdsConnectXcbRandr(ds);
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if(ds->displays.length == 0)
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ffdsConnectXrandr(ds);
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if(ds->displays.length == 0)
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ffdsConnectXcb(ds);
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if(ds->displays.length == 0)
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ffdsConnectXlib(ds);
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}
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//This display detection method is display server independent.
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//Use it if all connections failed
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if(ds->displays.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(ds);
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}
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