GPU: Add host/hardware stats

src/util/gpu_device.cpp

@@ -40,6 +40,7 @@ std::unique_ptr<GPUDevice> g_gpu_device;
 
 static std::string s_pipeline_cache_path;
 size_t GPUDevice::s_total_vram_usage = 0;
+GPUDevice::Statistics GPUDevice::s_stats = {};
 
 GPUSampler::GPUSampler() = default;
 
@@ -206,6 +207,11 @@ size_t GPUFramebufferManagerBase::KeyHash::operator()(const Key& key) const
     return XXH32(&key, sizeof(key), 0x1337);
 }
 
+GPUDevice::GPUDevice()
+{
+  ResetStatistics();
+}
+
 GPUDevice::~GPUDevice() = default;
 
 RenderAPI GPUDevice::GetPreferredAPI()
@@ -993,6 +999,11 @@ float GPUDevice::GetAndResetAccumulatedGPUTime()
   return 0.0f;
 }
 
+void GPUDevice::ResetStatistics()
+{
+  s_stats = {};
+}
+
 std::unique_ptr<GPUDevice> GPUDevice::CreateDeviceForAPI(RenderAPI api)
 {
   switch (api)