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62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
// Copyright 2016 The Draco Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include <numeric>
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#include "compression/attributes/sequential_integer_attribute_decoder.h"
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#include "compression/attributes/sequential_integer_attribute_encoder.h"
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#include "core/draco_test_base.h"
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namespace draco {
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class SequentialIntegerAttributeEncodingTest : public ::testing::Test {
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protected:
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};
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TEST_F(SequentialIntegerAttributeEncodingTest, DoesCompress) {
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// This test verifies that IntegerEncoding encodes and decodes the given data.
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const std::vector<int32_t> values{1, 8, 7, 5, 5, 5, 9,
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155, -6, -9, 9, 125, 1, 0};
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GeometryAttribute ga;
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PointAttribute pa;
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pa.Init(GeometryAttribute::GENERIC, nullptr, 1, DT_INT32, false, 4, 0);
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pa.Reset(values.size());
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pa.SetIdentityMapping();
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for (uint32_t i = 0; i < values.size(); ++i) {
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pa.SetAttributeValue(AttributeValueIndex(i), &values[i]);
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}
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// List of point ids from 0 to point_ids.size() - 1.
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std::vector<PointIndex> point_ids(values.size());
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std::iota(point_ids.begin(), point_ids.end(), 0);
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EncoderBuffer out_buf;
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SequentialIntegerAttributeEncoder ie;
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ASSERT_TRUE(ie.InitializeStandalone(&pa));
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ASSERT_TRUE(ie.Encode(point_ids, &out_buf));
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DecoderBuffer in_buf;
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in_buf.Init(out_buf.data(), out_buf.size());
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SequentialIntegerAttributeDecoder id;
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ASSERT_TRUE(id.InitializeStandalone(&pa));
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ASSERT_TRUE(id.Decode(point_ids, &in_buf));
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for (uint32_t i = 0; i < values.size(); ++i) {
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int32_t entry_val;
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pa.GetValue(AttributeValueIndex(i), &entry_val);
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ASSERT_EQ(entry_val, values[i]);
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}
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}
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} // namespace draco
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