From 5b3b7220412108bfcfd5ab73e90f292d0815337b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Sat, 4 Oct 2014 17:55:04 +0200
Subject: [PATCH] Detection of Intel Windows drivers.

---
 src/Magnum/Context.h                         |  5 ++++-
 src/Magnum/Implementation/detectedDriver.cpp | 11 +++++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/Magnum/Context.h b/src/Magnum/Context.h
index 434bdf7f4..303118b6b 100644
--- a/src/Magnum/Context.h
+++ b/src/Magnum/Context.h
@@ -182,6 +182,9 @@ class MAGNUM_EXPORT Context {
             #ifndef MAGNUM_TARGET_GLES
             /** Binary AMD desktop drivers on Windows and Linux */
             AMD = 1 << 0,
+
+            /** Intel desktop drivers on Windows */
+            IntelWindows = 1 << 1,
             #endif
 
             #ifdef MAGNUM_TARGET_GLES2
@@ -191,7 +194,7 @@ class MAGNUM_EXPORT Context {
              * specification explicitly disallows exposing driver information
              * to the application, this check cannot be done reliably.
              */
-            ProbablyAngle = 1 << 1
+            ProbablyAngle = 1 << 2
             #endif
         };
 
diff --git a/src/Magnum/Implementation/detectedDriver.cpp b/src/Magnum/Implementation/detectedDriver.cpp
index ca52c6620..758a44b0c 100644
--- a/src/Magnum/Implementation/detectedDriver.cpp
+++ b/src/Magnum/Implementation/detectedDriver.cpp
@@ -33,16 +33,23 @@ auto Context::detectedDriver() -> DetectedDrivers {
 
     _detectedDrivers = DetectedDrivers{};
 
-    /* AMD binary desktop drivers */
     #ifndef MAGNUM_TARGET_GLES
     const std::string vendor = vendorString();
+
+    /* AMD binary desktop drivers */
     if(vendor.find("ATI Technologies Inc.") != std::string::npos)
         return *_detectedDrivers |= DetectedDriver::AMD;
+
+    #ifdef CORRADE_TARGET_WINDOWS
+    /* Intel Windows drivers */
+    if(vendor.find("Intel") != std::string::npos)
+        return *_detectedDrivers |= DetectedDriver::IntelWindows;
+    #endif
     #endif
 
+    #ifdef MAGNUM_TARGET_GLES2
     /* OpenGL ES 2.0 implementation using ANGLE. Taken from
        http://stackoverflow.com/a/20149090 */
-    #ifdef MAGNUM_TARGET_GLES2
     {
         Range1Di range;
         glGetIntegerv(GL_ALIASED_LINE_WIDTH_RANGE, range.data());