57 lines
1.6 KiB
C++
57 lines
1.6 KiB
C++
/*
|
|
* Copyright (C) 2017 The Android Open Source Project
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef TNT_FILAMAT_LINEDICTIONARY_H
|
|
#define TNT_FILAMAT_LINEDICTIONARY_H
|
|
|
|
#include <string>
|
|
#include <unordered_map>
|
|
#include <vector>
|
|
|
|
namespace filamat {
|
|
|
|
// Establish a line <-> id mapping. Use for shader compression when each shader is sliced in lines
|
|
// and each line encoded into a 16 bit id.
|
|
class LineDictionary {
|
|
public:
|
|
LineDictionary();
|
|
~LineDictionary() = default;
|
|
|
|
void addText(const std::string& text) noexcept;
|
|
size_t getLineCount() const;
|
|
|
|
constexpr size_t getSize() const noexcept {
|
|
return mStorageSize;
|
|
}
|
|
|
|
bool isEmpty() const noexcept {
|
|
return mStrings.empty();
|
|
}
|
|
|
|
const std::string& getString(size_t index) const noexcept;
|
|
size_t getIndex(const std::string& s) const noexcept;
|
|
|
|
private:
|
|
void addLine(const std::string&& line) noexcept;
|
|
|
|
std::unordered_map<std::string, size_t> mLineIndices;
|
|
std::vector<std::string> mStrings;
|
|
size_t mStorageSize = 0;
|
|
};
|
|
|
|
} // namespace filamat
|
|
#endif // TNT_FILAMAT_LINEDICTIONARY_H
|