1 files changed, 93 insertions, 0 deletions
diff --git a/gfx/src/gfxTelemetry.h b/gfx/src/gfxTelemetry.h
new file mode 100644
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+++ b/gfx/src/gfxTelemetry.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef gfx_src_gfxTelemetry_h__
+#define gfx_src_gfxTelemetry_h__
+
+#include <cstdint>
+
+namespace mozilla {
+namespace gfx {
+
+// Describes the status of a graphics feature, in terms of whether or not we've
+// attempted to initialize the feature, and if so, whether or not it succeeded
+// (and if not, why).
+enum class FeatureStatus {
+  // This feature has not been requested.
+  Unused,
+
+  // This feature is unavailable due to Safe Mode, not being included with
+  // the operating system, or a dependent feature being disabled.
+  Unavailable,
+  UnavailableInSafeMode,
+  UnavailableNoGpuProcess,
+  UnavailableNoHwCompositing,
+  UnavailableNotBuilt,
+  UnavailableNoAngle,
+  UnavailableNoWebRender,
+
+  // This feature crashed immediately when we tried to initialize it, but we
+  // were able to recover via SEH (or something similar).
+  CrashedInHandler,
+
+  // This feature was blocked for reasons outside the blocklist, such as a
+  // runtime test failing.
+  Blocked,
+  BlockedDeviceUnknown,
+  BlockedDeviceTooOld,
+  BlockedVendorUnsupported,
+  BlockedHasBattery,
+  BlockedScreenTooLarge,
+  BlockedScreenUnknown,
+  BlockedNoGfxInfo,
+  BlockedOverride,
+  BlockedReleaseChannelIntel,
+  BlockedReleaseChannelAMD,
+  BlockedReleaseChannelNvidia,
+  BlockedReleaseChannelBattery,
+  BlockedReleaseChannelAndroid,
+
+  // This feature has been blocked by the allowlist.
+  Denied,
+
+  // This feature has been blocked by the graphics blocklist.
+  Blocklisted,
+
+  // This feature is disabled by default, and so activation isn't attempted
+  // unless something explicitly enables it.
+  OptIn,
+
+  // This feature was attempted but failed to activate.
+  Failed,
+
+  // This feature was explicitly disabled by the user.
+  Disabled,
+
+  // This feature is available for use.
+  Available,
+
+  // This feature was explicitly force-enabled by the user.
+  ForceEnabled,
+
+  // This feature was disabled due to the startup crash guard.
+  CrashedOnStartup,
+
+  // This feature was attempted but later determined to be broken.
+  Broken,
+
+  // Add new entries above here.
+  LAST
+};
+
+const char* FeatureStatusToString(FeatureStatus aStatus);
+bool IsFeatureStatusFailure(FeatureStatus aStatus);
+bool IsFeatureStatusSuccess(FeatureStatus aStatus);
+
+enum class TelemetryDeviceCode : uint32_t { Content = 0, Image = 1, D2D1 = 2 };
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif  // gfx_src_gfxTelemetry_h__