63 lines
No EOL
1.9 KiB
C++
63 lines
No EOL
1.9 KiB
C++
#include <Magick++.h>
|
|
#include <napi.h>
|
|
|
|
#include <list>
|
|
|
|
using namespace std;
|
|
using namespace Magick;
|
|
|
|
Napi::Value Wall(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>>();
|
|
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;
|
|
readImages(&frames, Blob(data.Data(), data.Length()));
|
|
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(type);
|
|
mid.push_back(image);
|
|
}
|
|
|
|
optimizeTransparency(mid.begin(), mid.end());
|
|
|
|
if (type == "gif") {
|
|
for (Image &image : mid) {
|
|
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
|
|
image.quantize();
|
|
if (delay != 0) image.animationDelay(delay);
|
|
}
|
|
}
|
|
|
|
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 (std::exception const &err) {
|
|
throw Napi::Error::New(env, err.what());
|
|
} catch (...) {
|
|
throw Napi::Error::New(env, "Unknown error");
|
|
}
|
|
} |