SystemInfo: Fix Windows driver version masking.

Should be applying a 16-bit mask instead of 8-bit. Bug: angleproject:3926 Change-Id: I2b0a28a5de42437890a9c0d1bbc57b48a5d64451 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1814980Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Reviewed-by: Ian Elliott <ianelliott@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>

SystemInfo: Fix Windows driver version masking.
8a0686e1 · Jamie Madill · Commit Bot · fea65766 · 8a0686e1
Commit 8a0686e1 authored Sep 19, 2019 by Jamie Madill Committed by Commit Bot Sep 19, 2019
Show whitespace changes
Inline Side-by-side

Showing with 5 additions and 5 deletions

SystemInfo_win.cpp src/gpu_info_util/SystemInfo_win.cpp +5 -5

No files found.
--- a/src/gpu_info_util/SystemInfo_win.cpp
+++ b/src/gpu_info_util/SystemInfo_win.cpp
@@ -53,11 +53,11 @@ bool GetDevicesFromDXGI(std::vector<GPUDeviceInfo> *devices)
        uint64_t intVersion = umdVersion.QuadPart;
        std::ostringstream o;
-        const uint64_t kMask = 0xFF;
+        constexpr uint64_t kMask16 = std::numeric_limits<uint16_t>::max();
-        o << ((intVersion >> 48) & kMask) << ".";
+        o << ((intVersion >> 48) & kMask16) << ".";
-        o << ((intVersion >> 32) & kMask) << ".";
+        o << ((intVersion >> 32) & kMask16) << ".";
-        o << ((intVersion >> 16) & kMask) << ".";
+        o << ((intVersion >> 16) & kMask16) << ".";
-        o << (intVersion & kMask);
+        o << (intVersion & kMask16);
        GPUDeviceInfo device;
        device.vendorId      = desc.VendorId;