Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/gfx/layers/ipc/LayerAnimationUtils.cpp b/gfx/layers/ipc/LayerAnimationUtils.cpp
new file mode 100644
index 0000000000..2902122ad3
--- /dev/null
+++ b/gfx/layers/ipc/LayerAnimationUtils.cpp
@@ -0,0 +1,40 @@
+/* -*- 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/. */
+
+#include "LayerAnimationUtils.h"
+#include "mozilla/ComputedTimingFunction.h"  // For ComputedTimingFunction
+#include "mozilla/layers/LayersMessages.h"   // For TimingFunction etc.
+#include "nsTimingFunction.h"
+
+namespace mozilla {
+namespace layers {
+
+/* static */
+Maybe<ComputedTimingFunction>
+AnimationUtils::TimingFunctionToComputedTimingFunction(
+    const TimingFunction& aTimingFunction) {
+  switch (aTimingFunction.type()) {
+    case TimingFunction::Tnull_t:
+      return Nothing();
+    case TimingFunction::TCubicBezierFunction: {
+      CubicBezierFunction cbf = aTimingFunction.get_CubicBezierFunction();
+      return Some(ComputedTimingFunction::CubicBezier(cbf.x1(), cbf.y1(),
+                                                      cbf.x2(), cbf.y2()));
+    }
+    case TimingFunction::TStepFunction: {
+      StepFunction sf = aTimingFunction.get_StepFunction();
+      StyleStepPosition pos = static_cast<StyleStepPosition>(sf.type());
+      return Some(ComputedTimingFunction::Steps(sf.steps(), pos));
+    }
+    default:
+      MOZ_ASSERT_UNREACHABLE("Function must be null, bezier, step or frames");
+      break;
+  }
+  return Nothing();
+}
+
+}  // namespace layers
+}  // namespace mozilla