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// Copyright 2017 The Draco Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "draco/animation/keyframe_animation.h"
namespace draco {
KeyframeAnimation::KeyframeAnimation() {}
bool KeyframeAnimation::SetTimestamps(
const std::vector<TimestampType> ×tamp) {
// Already added attributes.
const int32_t num_frames = timestamp.size();
if (num_attributes() > 0) {
// Timestamp attribute could be added only once.
if (timestamps()->size()) {
return false;
} else {
// Check if the number of frames is consistent with
// the existing keyframes.
if (num_frames != num_points()) {
return false;
}
}
} else {
// This is the first attribute.
set_num_frames(num_frames);
}
// Add attribute for time stamp data.
std::unique_ptr<PointAttribute> timestamp_att =
std::unique_ptr<PointAttribute>(new PointAttribute());
timestamp_att->Init(GeometryAttribute::GENERIC, 1, DT_FLOAT32, false,
num_frames);
for (PointIndex i(0); i < num_frames; ++i) {
timestamp_att->SetAttributeValue(timestamp_att->mapped_index(i),
×tamp[i.value()]);
}
this->SetAttribute(kTimestampId, std::move(timestamp_att));
return true;
}
} // namespace draco
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