blob: 37119a7171bdda4fe43584f8e9d870a9175f46cc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
// 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/core/bit_utils.h"
namespace draco {
void ConvertSignedIntsToSymbols(const int32_t *in, int in_values,
uint32_t *out) {
// Convert the quantized values into a format more suitable for entropy
// encoding.
// Put the sign bit into LSB pos and shift the rest one bit left.
for (int i = 0; i < in_values; ++i) {
out[i] = ConvertSignedIntToSymbol(in[i]);
}
}
void ConvertSymbolsToSignedInts(const uint32_t *in, int in_values,
int32_t *out) {
for (int i = 0; i < in_values; ++i) {
out[i] = ConvertSymbolToSignedInt(in[i]);
}
}
} // namespace draco
|
