Check if animation channel only have one component and shortcircuit

Change-Id: I6f80d3378fe3002142e2d84d410bcbf356cb02ea
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/animation/backend/animationutils.cpp b/src/animation/backend/animationutils.cpp
index 01484476d..29de69df6 100644
--- a/src/animation/backend/animationutils.cpp
+++ b/src/animation/backend/animationutils.cpp
@@ -253,10 +253,9 @@ ClipResults evaluateClipAtLocalTime(AnimationClip *clip, float localTime)
                 }
             } else {
                 // There's only one keyframe. We cant compute omega. Interpolate per component
-                const int lowerKeyframeBound = channel.channelComponents[0].fcurve.lowerKeyframeBound(localTime);
-                if (lowerKeyframeBound + 1 >= channel.channelComponents[0].fcurve.keyframeCount()) {
+                if (channel.channelComponents[0].fcurve.keyframeCount() == 1) {
                     for (const auto &channelComponent : qAsConst(channel.channelComponents))
-                        channelResults[i++] = channelComponent.fcurve.evaluateAtTime(localTime, lowerKeyframeBound);
+                        channelResults[i++] = channelComponent.fcurve.keyframe(0).value;
                 } else {
                     auto quaternionFromChannel = [channel](const int keyframe) {
                         const float w = channel.channelComponents[0].fcurve.keyframe(keyframe).value;
@@ -268,6 +267,7 @@ ClipResults evaluateClipAtLocalTime(AnimationClip *clip, float localTime)
                         return quat;
                     };
 
+                    const int lowerKeyframeBound = channel.channelComponents[0].fcurve.lowerKeyframeBound(localTime);
                     const auto lowerQuat = quaternionFromChannel(lowerKeyframeBound);
                     const auto higherQuat = quaternionFromChannel(lowerKeyframeBound + 1);
                     const float omega = std::acos(qBound(-1.0f, QQuaternion::dotProduct(lowerQuat, higherQuat), 1.0f));