68 lines
No EOL
2.1 KiB
C++
68 lines
No EOL
2.1 KiB
C++
#include <Magick++.h>
|
|
#include <napi.h>
|
|
|
|
#include <list>
|
|
|
|
using namespace std;
|
|
using namespace Magick;
|
|
|
|
Napi::Value Resize(const Napi::CallbackInfo &info) {
|
|
Napi::Env env = info.Env();
|
|
|
|
try {
|
|
Napi::Object obj = info[0].As<Napi::Object>();
|
|
Napi::Buffer<char> data = obj.Get("data").As<Napi::Buffer<char>>();
|
|
bool stretch = obj.Has("stretch")
|
|
? obj.Get("stretch").As<Napi::Boolean>().Value()
|
|
: false;
|
|
bool wide =
|
|
obj.Has("wide") ? obj.Get("wide").As<Napi::Boolean>().Value() : false;
|
|
string type = obj.Get("type").As<Napi::String>().Utf8Value();
|
|
int delay =
|
|
obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
|
|
|
|
Blob blob;
|
|
|
|
list<Image> frames;
|
|
list<Image> coalesced;
|
|
list<Image> blurred;
|
|
readImages(&frames, Blob(data.Data(), data.Length()));
|
|
coalesceImages(&coalesced, frames.begin(), frames.end());
|
|
|
|
for (Image &image : coalesced) {
|
|
if (stretch) {
|
|
image.resize(Geometry("512x512!"));
|
|
} else if (wide) {
|
|
image.resize(Geometry(to_string((image.baseColumns() * 19) / 2) + "x" +
|
|
to_string(image.baseRows() / 2) + "!"));
|
|
} else {
|
|
image.scale(Geometry("10%"));
|
|
image.scale(Geometry("1000%"));
|
|
}
|
|
image.magick(type);
|
|
blurred.push_back(image);
|
|
}
|
|
|
|
optimizeTransparency(blurred.begin(), blurred.end());
|
|
|
|
if (type == "gif") {
|
|
for (Image &image : blurred) {
|
|
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
|
|
image.quantize();
|
|
if (delay != 0) image.animationDelay(delay);
|
|
}
|
|
}
|
|
|
|
writeImages(blurred.begin(), blurred.end(), &blob);
|
|
|
|
Napi::Object result = Napi::Object::New(env);
|
|
result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
|
|
blob.length()));
|
|
result.Set("type", type);
|
|
return result;
|
|
} catch (std::exception const &err) {
|
|
throw Napi::Error::New(env, err.what());
|
|
} catch (...) {
|
|
throw Napi::Error::New(env, "Unknown error");
|
|
}
|
|
} |