mrmBot-Matrix/natives/circle.cc

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#include "common.h"
#include <Magick++.h>
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#include <cstring>
#include <iostream>
#include <list>
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#include <map>
#include <string>
using namespace std;
using namespace Magick;
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char *Circle(string type, char *BufferData, size_t BufferLength,
ArgumentMap Arguments, size_t *DataSize) {
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Blob blob;
list<Image> frames;
list<Image> coalesced;
list<Image> blurred;
try {
readImages(&frames, Blob(BufferData, BufferLength));
} catch (Magick::WarningCoder &warning) {
cerr << "Coder Warning: " << warning.what() << endl;
} catch (Magick::Warning &warning) {
cerr << "Warning: " << warning.what() << endl;
}
coalesceImages(&coalesced, frames.begin(), frames.end());
for (Image &image : coalesced) {
image.rotationalBlur(10);
image.magick(type);
blurred.push_back(image);
}
optimizeTransparency(blurred.begin(), blurred.end());
if (type == "gif") {
for (Image &image : blurred) {
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
image.quantize();
}
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}
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writeImages(blurred.begin(), blurred.end(), &blob);
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*DataSize = blob.length();
// workaround because the data is tied to the blob
char *data = (char *)malloc(*DataSize);
memcpy(data, blob.data(), *DataSize);
return data;
}