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// Copyright 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 Lovell Fuller and contributors.
//
// 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 SRC_STATS_H_
#define SRC_STATS_H_
#include <string>
#include <napi.h>
#include "./common.h"
struct ChannelStats {
// stats per channel
int min;
int max;
double sum;
double squaresSum;
double mean;
double stdev;
int minX;
int minY;
int maxX;
int maxY;
ChannelStats(int minVal, int maxVal, double sumVal, double squaresSumVal,
double meanVal, double stdevVal, int minXVal, int minYVal, int maxXVal, int maxYVal):
min(minVal), max(maxVal), sum(sumVal), squaresSum(squaresSumVal),
mean(meanVal), stdev(stdevVal), minX(minXVal), minY(minYVal), maxX(maxXVal), maxY(maxYVal) {}
};
struct StatsBaton {
// Input
sharp::InputDescriptor *input;
// Output
std::vector<ChannelStats> channelStats;
bool isOpaque;
double entropy;
double sharpness;
int dominantRed;
int dominantGreen;
int dominantBlue;
std::string err;
StatsBaton():
input(nullptr),
isOpaque(true),
entropy(0.0),
sharpness(0.0),
dominantRed(0),
dominantGreen(0),
dominantBlue(0)
{}
};
Napi::Value stats(const Napi::CallbackInfo& info);
#endif // SRC_STATS_H_
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