94 lines
No EOL
2.8 KiB
C++
94 lines
No EOL
2.8 KiB
C++
#include <Magick++.h>
|
|
#include <napi.h>
|
|
|
|
#include <list>
|
|
|
|
using namespace std;
|
|
using namespace Magick;
|
|
|
|
Napi::Value Mirror(const Napi::CallbackInfo &info) {
|
|
Napi::Env env = info.Env();
|
|
|
|
try {
|
|
Napi::Object obj = info[0].As<Napi::Object>();
|
|
string path = obj.Get("path").As<Napi::String>().Utf8Value();
|
|
bool vertical = obj.Has("vertical")
|
|
? obj.Get("vertical").As<Napi::Boolean>().Value()
|
|
: false;
|
|
bool first =
|
|
obj.Has("first") ? obj.Get("first").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> mid;
|
|
MagickCore::GravityType gravity;
|
|
readImages(&frames, path);
|
|
coalesceImages(&coalesced, frames.begin(), frames.end());
|
|
|
|
if (vertical && first) {
|
|
gravity = Magick::NorthGravity;
|
|
} else if (!vertical && first) {
|
|
gravity = Magick::WestGravity;
|
|
} else if (vertical && !first) {
|
|
gravity = Magick::SouthGravity;
|
|
} else {
|
|
gravity = Magick::EastGravity;
|
|
}
|
|
|
|
for (Image &image : coalesced) {
|
|
list<Image> mirrored;
|
|
Image final;
|
|
image.extent(Geometry(to_string(vertical ? image.baseColumns()
|
|
: image.baseColumns() / 2) +
|
|
"x" +
|
|
to_string(vertical ? image.baseRows() / 2
|
|
: image.baseRows())),
|
|
gravity);
|
|
mirrored.push_back(image);
|
|
Image mirror = image;
|
|
if (vertical) {
|
|
mirror.flip();
|
|
} else {
|
|
mirror.flop();
|
|
}
|
|
if (first) {
|
|
mirrored.push_back(mirror);
|
|
} else {
|
|
mirrored.push_front(mirror);
|
|
}
|
|
appendImages(&final, mirrored.begin(), mirrored.end(), vertical);
|
|
final.repage();
|
|
final.magick(type);
|
|
final.animationDelay(delay == 0 ? image.animationDelay() : delay);
|
|
mid.push_back(final);
|
|
}
|
|
|
|
optimizeTransparency(mid.begin(), mid.end());
|
|
|
|
if (type == "gif") {
|
|
for (Image &image : mid) {
|
|
image.quantizeDither(false);
|
|
image.quantize();
|
|
}
|
|
}
|
|
|
|
writeImages(mid.begin(), mid.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 (Napi::Error const &err) {
|
|
throw err;
|
|
} catch (std::exception const &err) {
|
|
throw Napi::Error::New(env, err.what());
|
|
} catch (...) {
|
|
throw Napi::Error::New(env, "Unknown error");
|
|
}
|
|
} |