Basic nvml implementation

src/cpu_gpu.h

@@ -13,6 +13,10 @@
 #include <string>
 #include <sstream>
 #include <regex>
+extern "C"
+{
+	#include "nvidia_info.h"
+}
 using namespace std;
 
 int gpuLoad, gpuTemp, cpuTemp;
@@ -161,6 +165,8 @@ void PrintStats(const std::vector<CPUData> & entries1, const std::vector<CPUData
 }
 
 void *cpuInfo(void *){
+	checkNvidia();
+
 	FILE *cpuInfo = fopen("/proc/cpuinfo", "r");
     char line[256];
 	int i = 0;

src/meson.build

@@ -35,8 +35,10 @@ vklayer_files = files(
   'overlay.cpp',
   'overlay_params.c',
   'font_unispace.c',
+  'nvml.c',
 )
 
+dep_nvml = cc.find_library('nvidia-ml')
 vklayer_mesa_overlay = shared_library(
   'MangoHud',
   util_files,
@@ -59,7 +61,8 @@ vklayer_mesa_overlay = shared_library(
     vulkan_wsi_deps, 
     libimgui_core_dep, 
     dep_dl,
-    dep_pthread],
+    dep_pthread,
+    dep_nvml],
   include_directories : inc_common,
   link_args : cc.get_supported_link_arguments(['-Wl,-Bsymbolic-functions', '-Wl,-z,relro']),
   install : true

src/nvidia_info.h

@@ -0,0 +1,8 @@
+#include <nvml.h>
+nvmlReturn_t result;
+unsigned int nvidiaTemp, processSamplesCount, lastSeenTimeStamp, *vgpuInstanceSamplesCount;
+nvmlValueType_t *sampleValType;
+nvmlDevice_t nvidiaDevice;
+struct nvmlUtilization_st nvidiaUtilization;
+
+void checkNvidia(void);

src/nvml.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include "nvidia_info.h"
+#include <nvml.h>
+
+void checkNvidia(){
+    result = nvmlInit();
+    if (NVML_SUCCESS != result) {
+        
+    } else {
+        nvmlDeviceGetHandleByIndex(0, &nvidiaDevice);
+        nvmlDeviceGetUtilizationRates(nvidiaDevice, &nvidiaUtilization);
+        nvmlDeviceGetTemperature(nvidiaDevice, NVML_TEMPERATURE_GPU, &nvidiaTemp);
+        printf("temp: %i\n", nvidiaTemp);
+        printf("util: %i\n", nvidiaUtilization.gpu);
+    }
+}