windows: Introduce a built-in GPU blacklist

Use a built-in JSON file in case the QT_OPENGL_BUGLIST environment
variable is not set. When QT_OPENGL_BUGLIST is set, the built-in list
is ignored.

To make the implementation simpler and more readable, some of the code
in QWindowsOpenGLTester is reshuffled a bit. It also caches the results
now, so it is safe and fast to call supportedRenderers() and friends
multiple times.

The blacklist currently contains the Intel card from QTBUG-43263 (Intel
GMA / HD3000 ?) and may also apply to QTBUG-42240.

[ChangeLog][QtGui] Qt now contains a built-in GPU driver blacklist for
Windows that disables the usage of desktop OpenGL with some older cards
that are known to be unstable with opengl32.dll.

Task-number: QTBUG-42240
Task-number: QTBUG-43263
Change-Id: I1ecd65b51fca77925317d52048e7ab01d9b8797c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/plugins/platforms/windows/openglblacklists/default.json b/src/plugins/platforms/windows/openglblacklists/default.json
new file mode 100644
index 0000000000..0217b79ecf
--- /dev/null
+++ b/src/plugins/platforms/windows/openglblacklists/default.json
@@ -0,0 +1,18 @@
+{
+    "name": "Qt built-in GPU driver blacklist",
+    "version": "5.5",
+    "entries": [
+        {
+            "id": 1,
+            "description": "Desktop OpenGL is unreliable on Intel HD3000/GMA (QTBUG-43263, QTBUG-42240)",
+            "vendor_id": "0x8086",
+            "device_id": [ "0x0A16" ],
+            "os": {
+                "type": "win"
+            },
+            "features": [
+                "disable_desktopgl"
+            ]
+        }
+    ]
+}