Recognizing `amd-nv-no-forward-compatible-core-context` workaround.

src/Magnum/Implementation/driverSpecific.cpp

@@ -34,7 +34,12 @@ namespace Magnum {
 
 #ifndef CORRADE_NO_ASSERT
 namespace {
-    std::vector<std::string> KnownWorkarounds{};
+    std::vector<std::string> KnownWorkarounds{
+        /* Creating core context with specific version on AMD and NV
+           proprietary drivers causes the context to be forced to given
+           version instead of selecting latest available version */
+        "amd-nv-no-forward-compatible-core-context"
+    };
 }
 #endif
 

src/Magnum/Platform/Sdl2Application.cpp

@@ -189,6 +189,7 @@ bool Sdl2Application::tryCreateContext(const Configuration& configuration) {
         #ifndef CORRADE_TARGET_APPLE
         /* Sorry about the UGLY code, HOPEFULLY THERE WON'T BE MORE WORKAROUNDS */
         || (vendorString = reinterpret_cast<const char*>(glGetString(GL_VENDOR)),
+        !_context->isDriverWorkaroundDisabled("amd-nv-no-forward-compatible-core-context") &&
         (std::strncmp(vendorString, nvidiaVendorString, sizeof(nvidiaVendorString)) == 0 ||
          std::strncmp(vendorString, amdVendorString, sizeof(amdVendorString)) == 0))
         #endif

src/Magnum/Platform/WindowlessGlxApplication.cpp

@@ -124,6 +124,7 @@ bool WindowlessGlxApplication::tryCreateContext(const Configuration&) {
            and HOPEFULLY THERE WON'T BE MORE WORKAROUNDS */
         || (glXMakeContextCurrent(_display, _pbuffer, _pbuffer, _glContext) &&
         (vendorString = reinterpret_cast<const char*>(glGetString(GL_VENDOR)),
+        !_context->isDriverWorkaroundDisabled("amd-nv-no-forward-compatible-core-context") &&
         (std::strncmp(vendorString, nvidiaVendorString, sizeof(nvidiaVendorString)) == 0 ||
          std::strncmp(vendorString, amdVendorString, sizeof(amdVendorString)) == 0)))
         #endif