mrmBot-Matrix/natives/wall.cc

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#include <Magick++.h>
#include <cstring>
#include <iostream>
#include <list>
#include "common.h"
using namespace std;
using namespace Magick;
ArgumentMap Wall(string type, string *outType, char *BufferData, size_t BufferLength,
[[maybe_unused]] ArgumentMap Arguments, size_t *DataSize) {
Blob blob;
list<Image> frames;
list<Image> coalesced;
list<Image> mid;
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.resize(Geometry("128x128"));
image.virtualPixelMethod(Magick::TileVirtualPixelMethod);
image.matteColor("none");
image.backgroundColor("none");
image.scale(Geometry("512x512"));
double arguments[16] = {0, 0, 57, 42, 0, 128, 63, 130,
128, 0, 140, 60, 128, 128, 140, 140};
image.distort(Magick::PerspectiveDistortion, 16, arguments);
image.scale(Geometry("800x800>"));
image.magick(*outType);
mid.push_back(image);
}
optimizeTransparency(mid.begin(), mid.end());
if (*outType == "gif") {
for (Image &image : mid) {
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
image.quantize();
}
}
writeImages(mid.begin(), mid.end(), &blob);
*DataSize = blob.length();
char *data = (char *)malloc(*DataSize);
memcpy(data, blob.data(), *DataSize);
ArgumentMap output;
output["buf"] = data;
output["width"] = (int)mid.front().columns();
output["height"] = (int)mid.front().rows();
return output;
}