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https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
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Changed: Implement CSystemUtils::getTotalVideoMemory() under Linux (Xorg log and lspci parsing)
--HG-- branch : develop
This commit is contained in:
kervala
parent
2006f1a866
commit
cbea85c105
1 changed files with 188 additions and 2 deletions
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@ -32,6 +32,8 @@
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# include <ShObjIdl.h>
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# define TASKBAR_PROGRESS 1
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# endif
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#elif defined(NL_OS_UNIX) && !defined(NL_OS_MAC)
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#include "nel/misc/file.h"
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#endif
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#ifdef DEBUG_NEW
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@ -472,7 +474,7 @@ sint CSystemUtils::getTotalVideoMemory()
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{
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sint res = -1;
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#ifdef NL_OS_WINDOWS
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#if defined(NL_OS_WINDOWS)
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// using DXGI
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HINSTANCE hDXGI = LoadLibraryA("dxgi.dll");
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@ -596,8 +598,192 @@ sint CSystemUtils::getTotalVideoMemory()
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nlwarning("Unable to load ddraw.dll");
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}
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}
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#elif defined(NL_OS_MAC)
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// the right method is using OpenGL
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#else
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// TODO: implement for other systems
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// under Linux, no method is really reliable...
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NLMISC::CIFile file;
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std::string logFile = "/var/log/Xorg.0.log";
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// parse last Xorg.0.log
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if (file.open(logFile, true))
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{
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char buffer[256];
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while(!file.eof())
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{
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file.getline(buffer, 256);
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if (buffer[0] == '\0') break;
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std::string line(buffer);
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// nvidia driver
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std::string::size_type pos = line.find(") NVIDIA(");
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if (pos != std::string::npos)
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{
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// [ 20.883] (--) NVIDIA(0): Memory: 2097152 kBytes
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pos = line.find("Memory: ", pos);
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// found memory line
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if (pos == std::string::npos) continue;
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pos += 8;
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std::string::size_type posUnits = line.find(" kBytes", pos);
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// found units in KiB
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if (posUnits == std::string::npos) continue;
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std::string videoMemory = line.substr(pos, posUnits-pos);
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if (!NLMISC::fromString(videoMemory, res)) continue;
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nlinfo("Xorg NVIDIA driver reported %d KiB of video memory", res);
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break;
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}
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// intel driver
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pos = line.find(") intel(");
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if (pos != std::string::npos)
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{
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// (**) intel(0): VideoRam: 131072 KB
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pos = line.find("VideoRam: ", pos);
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// found memory line
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if (pos == std::string::npos) continue;
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pos += 10;
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std::string::size_type posUnits = line.find(" KB", pos);
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// found units in KiB
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if (posUnits == std::string::npos) continue;
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std::string videoMemory = line.substr(pos, posUnits-pos);
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if (!NLMISC::fromString(videoMemory, res)) continue;
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nlinfo("Xorg Intel driver reported %d KiB of video memory", res);
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break;
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}
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// TODO: other drivers: nv, fglrx (ATI), radeon (ATI)
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}
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file.close();
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}
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if (res == -1)
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{
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// use lspci
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std::string command = "lspci";
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std::string out = getCommandOutput(command);
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if (out.empty())
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{
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nlwarning("Unable to launch %s", command.c_str());
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}
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else
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{
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std::vector<std::string> lines;
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std::string deviceId;
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explode(out, std::string("\n"), lines, true);
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// process each line
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for(uint i = 0; i < lines.size(); ++i)
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{
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std::string line = lines[i];
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if (line.find("VGA") == std::string::npos &&
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line.find("3D") == std::string::npos &&
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line.find("2D") == std::string::npos)
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continue;
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std::string::size_type pos = line.find(' ');
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if (pos == std::string::npos) continue;
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// found device ID
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deviceId = line.substr(0, pos);
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break;
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}
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if (deviceId.empty())
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{
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nlwarning("Unable to find a 3D device with lspci");
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}
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else
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{
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command = "lspci -v -s " + deviceId;
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out = getCommandOutput(command);
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if (out.empty())
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{
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nlwarning("Unable to launch %s", command.c_str());
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}
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else
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{
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explode(out, std::string("\n"), lines, true);
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// process each line
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for(uint i = 0; i < lines.size(); ++i)
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{
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std::string line = lines[i];
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// look for a size
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std::string::size_type pos0 = line.find("[size=");
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if (pos0 == std::string::npos) continue;
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// move to first digit
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pos0 += 6;
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// end of the size
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std::string::size_type pos1 = line.find("]", pos0);
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if (pos1 == std::string::npos) continue;
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sint units;
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if (line.substr(pos1-1, 1) == "M")
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{
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// size in MiB
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units = 1024;
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--pos1;
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}
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else if (line.substr(pos1-1, 1) == "K")
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{
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// size in KiB
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units = 1;
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--pos1;
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}
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else
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{
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// size in B
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units = 0;
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}
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// extract the size
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std::string sizeStr = line.substr(pos0, pos1-pos0);
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// convert size to integer with right units
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sint tmpSize;
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if (!NLMISC::fromString(sizeStr, tmpSize)) continue;
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tmpSize *= units;
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// take the higher size (up to 256 MiB apparently)
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if (tmpSize > res) res = tmpSize;
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}
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nlinfo("lspci reported %d KiB of video memory", res);
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}
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}
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}
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}
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#endif
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return res;
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