From 05101b251c3a6b63f7250671259d842f5f362475 Mon Sep 17 00:00:00 2001
From: David Korth <gerbilsoft@gerbilsoft.com>
Date: Tue, 24 Sep 2019 00:30:20 -0400
Subject: [PATCH] OGL/Render.cpp, InitDriverInfo(): Use std::string_view to
 eliminate string copies.

Consolidate the NVIDIA Tegra and non-Tegra checks into one branch.
---
 Source/Core/VideoBackends/OGL/Render.cpp | 29 +++++++++++++-----------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index 14bc05757a..27a8c05287 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -144,28 +144,35 @@ static void APIENTRY ClearDepthf(GLfloat depthval)
 
 static void InitDriverInfo()
 {
-  std::string svendor = std::string(g_ogl_config.gl_vendor);
-  std::string srenderer = std::string(g_ogl_config.gl_renderer);
-  std::string sversion = std::string(g_ogl_config.gl_version);
+  const std::string_view svendor(g_ogl_config.gl_vendor);
+  const std::string_view srenderer(g_ogl_config.gl_renderer);
+  const std::string_view sversion(g_ogl_config.gl_version);
   DriverDetails::Vendor vendor = DriverDetails::VENDOR_UNKNOWN;
   DriverDetails::Driver driver = DriverDetails::DRIVER_UNKNOWN;
   DriverDetails::Family family = DriverDetails::Family::UNKNOWN;
   double version = 0.0;
 
   // Get the vendor first
-  if (svendor == "NVIDIA Corporation" && srenderer != "NVIDIA Tegra")
+  if (svendor == "NVIDIA Corporation")
   {
-    vendor = DriverDetails::VENDOR_NVIDIA;
+    if (srenderer != "NVIDIA Tegra")
+    {
+      vendor = DriverDetails::VENDOR_NVIDIA;
+    }
+    else
+    {
+      vendor = DriverDetails::VENDOR_TEGRA;
+    }
   }
   else if (svendor == "ATI Technologies Inc." || svendor == "Advanced Micro Devices, Inc.")
   {
     vendor = DriverDetails::VENDOR_ATI;
   }
-  else if (std::string::npos != sversion.find("Mesa"))
+  else if (sversion.find("Mesa") != std::string::npos)
   {
     vendor = DriverDetails::VENDOR_MESA;
   }
-  else if (std::string::npos != svendor.find("Intel"))
+  else if (svendor.find("Intel") != std::string::npos)
   {
     vendor = DriverDetails::VENDOR_INTEL;
   }
@@ -186,10 +193,6 @@ static void InitDriverInfo()
   {
     vendor = DriverDetails::VENDOR_IMGTEC;
   }
-  else if (svendor == "NVIDIA Corporation" && srenderer == "NVIDIA Tegra")
-  {
-    vendor = DriverDetails::VENDOR_TEGRA;
-  }
   else if (svendor == "Vivante Corporation")
   {
     vendor = DriverDetails::VENDOR_VIVANTE;
@@ -238,8 +241,8 @@ static void InitDriverInfo()
       else if (srenderer.find("Ivybridge") != std::string::npos)
         family = DriverDetails::Family::INTEL_IVY;
     }
-    else if (std::string::npos != srenderer.find("AMD") ||
-             std::string::npos != srenderer.find("ATI"))
+    else if (srenderer.find("AMD") != std::string::npos ||
+             srenderer.find("ATI") != std::string::npos)
     {
       driver = DriverDetails::DRIVER_R600;
     }