Port snapchat and zamn
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parent
0162997792
commit
d191a69742
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@ -1,11 +1,9 @@
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#include <Magick++.h>
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#include <napi.h>
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#include <iostream>
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#include <list>
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#include <vips/vips8>
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using namespace std;
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using namespace Magick;
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using namespace vips;
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Napi::Value Snapchat(const Napi::CallbackInfo &info) {
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Napi::Env env = info.Env();
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@ -20,58 +18,64 @@ Napi::Value Snapchat(const Napi::CallbackInfo &info) {
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int delay =
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obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
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Blob blob;
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VOption *options = VImage::option()->set("access", "sequential");
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list<Image> frames;
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list<Image> coalesced;
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list<Image> captioned;
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Blob caption_blob;
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try {
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readImages(&frames, Blob(data.Data(), data.Length()));
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} catch (Magick::WarningCoder &warning) {
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cerr << "Coder Warning: " << warning.what() << endl;
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} catch (Magick::Warning &warning) {
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cerr << "Warning: " << warning.what() << endl;
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VImage in =
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VImage::new_from_buffer(data.Data(), data.Length(), "",
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type == "gif" ? options->set("n", -1) : options)
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.colourspace(VIPS_INTERPRETATION_sRGB);
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if (!in.has_alpha()) in = in.bandjoin(255);
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int width = in.width();
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int page_height = vips_image_get_page_height(in.get_image());
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int n_pages = vips_image_get_n_pages(in.get_image());
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int size = width / 20;
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int textWidth = width - ((width / 25) * 2);
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string font_string = "Helvetica Neue " + to_string(size);
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VImage textIn =
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VImage::text(("<span foreground=\"white\" background=\"#000000B2\">" +
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caption + "</span>")
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.c_str(),
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VImage::option()
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->set("rgba", true)
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->set("align", VIPS_ALIGN_CENTRE)
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->set("font", font_string.c_str())
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->set("width", textWidth));
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int bgHeight = textIn.height() + (width / 25);
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textIn =
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((textIn == (vector<double>){0, 0, 0, 0}).bandand())
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.ifthenelse({0, 0, 0, 178}, textIn)
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.embed((width / 2) - (textIn.width() / 2),
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(bgHeight / 2) - (textIn.height() / 2), width, bgHeight,
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VImage::option()
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->set("extend", "background")
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->set("background", (vector<double>){0, 0, 0, 178}));
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vector<VImage> img;
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for (int i = 0; i < n_pages; i++) {
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VImage img_frame =
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type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
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img_frame = img_frame.composite2(
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textIn, VIPS_BLEND_MODE_OVER,
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VImage::option()->set("x", 0)->set("y", page_height * pos));
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img.push_back(img_frame);
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}
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VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
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final.set(VIPS_META_PAGE_HEIGHT, page_height);
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if (delay) final.set("delay", delay);
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size_t width = frames.front().baseColumns();
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size_t height = frames.front().baseRows();
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string query(to_string(width - ((width / 25) * 2)) + "x");
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Image caption_image(Geometry(query), Color("none"));
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caption_image.backgroundColor(Color("none"));
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caption_image.fillColor("white");
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caption_image.font("Helvetica Neue");
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caption_image.fontPointsize(width / 25);
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caption_image.textGravity(Magick::CenterGravity);
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caption_image.read("pango:" + caption);
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caption_image.backgroundColor(Color("rgba(0, 0, 0, 0.7)"));
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caption_image.extent(Geometry(width, caption_image.rows() + (width / 25)),
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Magick::CenterGravity);
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void *buf;
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size_t length;
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final.write_to_buffer(
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("." + type).c_str(), &buf, &length,
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type == "gif" ? VImage::option()->set("dither", 0) : 0);
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coalesceImages(&coalesced, frames.begin(), frames.end());
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for (Image &image : coalesced) {
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list<Image> images;
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image.composite(caption_image, 0, height * pos, Magick::OverCompositeOp);
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image.magick(type);
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image.animationDelay(delay == 0 ? image.animationDelay() : delay);
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captioned.push_back(image);
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}
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optimizeTransparency(captioned.begin(), captioned.end());
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if (type == "gif") {
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for (Image &image : captioned) {
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image.quantizeDither(false);
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image.quantize();
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}
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}
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writeImages(captioned.begin(), captioned.end(), &blob);
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vips_thread_shutdown();
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Napi::Object result = Napi::Object::New(env);
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result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
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blob.length()));
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result.Set("data", Napi::Buffer<char>::Copy(env, (char *)buf, length));
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result.Set("type", type);
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return result;
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} catch (std::exception const &err) {
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@ -1,10 +1,10 @@
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#include <Magick++.h>
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#include <napi.h>
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#include <list>
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#include <vips/vips8>
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#include <gperftools/profiler.h>
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using namespace std;
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using namespace Magick;
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using namespace vips;
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Napi::Value Zamn(const Napi::CallbackInfo &info) {
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Napi::Env env = info.Env();
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@ -17,42 +17,44 @@ Napi::Value Zamn(const Napi::CallbackInfo &info) {
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int delay =
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obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
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Blob blob;
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VOption *options = VImage::option()->set("access", "sequential");
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list<Image> frames;
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list<Image> coalesced;
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list<Image> mid;
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Image watermark;
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readImages(&frames, Blob(data.Data(), data.Length()));
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watermark.read(basePath + "assets/images/zamn.png");
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coalesceImages(&coalesced, frames.begin(), frames.end());
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VImage in =
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VImage::new_from_buffer(data.Data(), data.Length(), "",
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type == "gif" ? options->set("n", -1) : options)
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.colourspace(VIPS_INTERPRETATION_sRGB);
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if (!in.has_alpha()) in = in.bandjoin(255);
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for (Image &image : coalesced) {
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Image watermark_new = watermark;
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image.backgroundColor("none");
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image.scale(Geometry("303x438!"));
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image.extent(Geometry("621x516-310-75"));
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watermark_new.composite(image, Magick::CenterGravity,
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Magick::OverCompositeOp);
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watermark_new.magick(type);
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watermark_new.animationDelay(delay == 0 ? image.animationDelay() : delay);
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mid.push_back(watermark_new);
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int width = in.width();
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int page_height = vips_image_get_page_height(in.get_image());
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int n_pages = vips_image_get_n_pages(in.get_image());
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string assetPath = basePath + "assets/images/zamn.png";
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VImage tmpl = VImage::new_from_file(assetPath.c_str());
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vector<VImage> img;
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for (int i = 0; i < n_pages; i++) {
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VImage img_frame =
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type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
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VImage composited = tmpl.insert(
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img_frame.extract_band(0, VImage::option()->set("n", 3)).bandjoin(255).resize(
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303.0 / (double)width,
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VImage::option()->set("vscale", 438.0 / (double)page_height)),
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310, 76);
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img.push_back(composited);
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}
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VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
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final.set(VIPS_META_PAGE_HEIGHT, 516);
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if (delay) final.set("delay", delay);
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optimizeTransparency(mid.begin(), mid.end());
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void *buf;
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size_t length;
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final.write_to_buffer(("." + type).c_str(), &buf, &length);
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if (type == "gif") {
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for (Image &image : mid) {
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image.quantizeDitherMethod(FloydSteinbergDitherMethod);
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image.quantize();
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}
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}
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writeImages(mid.begin(), mid.end(), &blob);
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vips_thread_shutdown();
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Napi::Object result = Napi::Object::New(env);
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result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
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blob.length()));
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result.Set("data", Napi::Buffer<char>::Copy(env, (char *)buf, length));
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result.Set("type", type);
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return result;
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} catch (std::exception const &err) {
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