Port caption2, start blur/colors ports

2022-02-22 19:43:22 -06:00 · 2022-02-22 19:43:22 -06:00 · 8b59e70fe5
commit 8b59e70fe5
parent 50ef9e51be
5 changed files with 129 additions and 147 deletions
--- a/commands/image-editing/caption2.js
+++ b/commands/image-editing/caption2.js
@ -6,7 +6,7 @@ class CaptionTwoCommand extends ImageCommand {
  params(url) {
    const newArgs = this.type === "classic" ? this.args.filter(item => !item.includes(url)).join(" ") : this.options.text;
    return {
-      caption: newArgs && newArgs.trim() ? newArgs.replaceAll("&", "\\&amp;").replaceAll(">", "\\&gt;").replaceAll("<", "\\&lt;").replaceAll("\"", "\\&quot;").replaceAll("'", "\\&apos;").replaceAll("%", "\\%") : words.sort(() => 0.5 - Math.random()).slice(0, Math.floor(Math.random() * words.length + 1)).join(" "),
+      caption: newArgs && newArgs.trim() ? newArgs.replaceAll("&", "&amp;").replaceAll(">", "&gt;").replaceAll("<", "&lt;").replaceAll("\"", "&quot;").replaceAll("'", "&apos;").replaceAll("%", "%") : words.sort(() => 0.5 - Math.random()).slice(0, Math.floor(Math.random() * words.length + 1)).join(" "),
      top: !!this.specialArgs.top,
      font: this.specialArgs.font && allowedFonts.includes(this.specialArgs.font.toLowerCase()) ? this.specialArgs.font.toLowerCase() : "helvetica"
    };
--- a/natives/blur.cc
+++ b/natives/blur.cc
@ -1,11 +1,11 @@
-#include <Magick++.h>
 #include <napi.h>

 #include <iostream>
 #include <list>
+#include <vips/vips8>

 using namespace std;
-using namespace Magick;
+using namespace vips;

 Napi::Value Blur(const Napi::CallbackInfo &info) {
  Napi::Env env = info.Env();
@ -18,42 +18,29 @@ Napi::Value Blur(const Napi::CallbackInfo &info) {
    int delay =
        obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;

-    Blob blob;
+    VOption *options = VImage::option()->set("access", "sequential");

-    list<Image> frames;
-    list<Image> coalesced;
-    try {
-      readImages(&frames, Blob(data.Data(), data.Length()));
-    } 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());
+    VImage in =
+        VImage::new_from_buffer(data.Data(), data.Length(), "",
+                                type == "gif" ? options->set("n", -1) : options)
+            .colourspace(VIPS_INTERPRETATION_sRGB);
+    if (!in.has_alpha()) in = in.bandjoin(255);

-    if (sharp) {
-      for_each(coalesced.begin(), coalesced.end(), sharpenImage(0, 3));
-    } else {
-      for_each(coalesced.begin(), coalesced.end(), blurImage(15));
-    }
+    // TODO: find a better way to calculate the intensity for GIFs without
+    // splitting frames
+    VImage out = sharp ? in.sharpen(VImage::option()->set("sigma", 3))
+                       : in.gaussblur(15);

-    for_each(coalesced.begin(), coalesced.end(), magickImage(type));
+    if (delay) out.set("delay", delay);

-    optimizeTransparency(coalesced.begin(), coalesced.end());
+    void *buf;
+    size_t length;
+    out.write_to_buffer(("." + type).c_str(), &buf, &length);

-    if (type == "gif") {
-      for (Image &image : coalesced) {
-        image.quantizeDitherMethod(FloydSteinbergDitherMethod);
-        image.quantize();
-        if (delay != 0) image.animationDelay(delay);
-      }
-    }
-
-    writeImages(coalesced.begin(), coalesced.end(), &blob);
+    vips_thread_shutdown();

    Napi::Object result = Napi::Object::New(env);
-    result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
-                                                blob.length()));
+    result.Set("data", Napi::Buffer<char>::Copy(env, (char *)buf, length));
    result.Set("type", type);
    return result;
  } catch (std::exception const &err) {
--- a/natives/caption.cc
+++ b/natives/caption.cc
@ -1,6 +1,7 @@
+#include <napi.h>
+
 #include <iostream>
 #include <vips/vips8>
-#include <napi.h>

 using namespace std;
 using namespace vips;
@ -20,12 +21,13 @@ Napi::Value Caption(const Napi::CallbackInfo &info) {
    int delay =
        obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;

-    VImage in = VImage::new_from_buffer(data.Data(), data.Length(), "", VImage::option()
-            ->set("n", -1)
-            ->set("access", "sequential"))
-        .colourspace(VIPS_INTERPRETATION_sRGB);
-    if (!in.has_alpha())
-        in = in.bandjoin(255);
+    VOption *options = VImage::option()->set("access", "sequential");
+
+    VImage in =
+        VImage::new_from_buffer(data.Data(), data.Length(), "",
+                                type == "gif" ? options->set("n", -1) : options)
+            .colourspace(VIPS_INTERPRETATION_sRGB);
+    if (!in.has_alpha()) in = in.bandjoin(255);

    int width = in.width();
    int size = width / 10;
@ -33,49 +35,47 @@ Napi::Value Caption(const Napi::CallbackInfo &info) {
    int n_pages = vips_image_get_n_pages(in.get_image());
    int textWidth = width - ((width / 25) * 2);

-    //char font_string[12 + sizeof(size)];
-    //sprintf(font_string, "futura bold %d", size);
+    string font_string = (font == "roboto" ? "Roboto Condensed" : font) + " " +
+                         (font != "impact" ? "bold" : "normal") + " " +
+                         to_string(size);

-    string font_string = (font == "roboto" ? "Roboto Condensed" : font) + " " + (font != "impact" ? "bold" : "normal") + " " + to_string(size);
-
-    string captionText =
-        "<span background=\"white\">" + caption + "</span>";
+    string captionText = "<span background=\"white\">" + caption + "</span>";

    VImage text =
        VImage::text(captionText.c_str(), VImage::option()
-            ->set("rgba", true)
-            ->set("align", VIPS_ALIGN_CENTRE)
-            ->set("font", font_string.c_str())
-            ->set("width", textWidth));
-    VImage captionImage = ((text == (vector<double>) {0, 0, 0, 0}).bandand())
-        .ifthenelse(255, text)
-        .gravity(VIPS_COMPASS_DIRECTION_CENTRE,
-            width, text.height() + size, VImage::option()
-            ->set("extend", "white"));
+                                              ->set("rgba", true)
+                                              ->set("align", VIPS_ALIGN_CENTRE)
+                                              ->set("font", font_string.c_str())
+                                              ->set("width", textWidth));
+    VImage captionImage =
+        ((text == (vector<double>){0, 0, 0, 0}).bandand())
+            .ifthenelse(255, text)
+            .gravity(VIPS_COMPASS_DIRECTION_CENTRE, width, text.height() + size,
+                     VImage::option()->set("extend", "white"));

    vector<VImage> img;
    for (int i = 0; i < n_pages; i++) {
-        VImage img_frame = type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
-        VImage frame = captionImage.join(img_frame,
-            VIPS_DIRECTION_VERTICAL, VImage::option()
-            ->set("background", 0xffffff)
-            ->set("expand", true));
-        img.push_back(frame);
+      VImage img_frame =
+          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+      VImage frame = captionImage.join(
+          img_frame, VIPS_DIRECTION_VERTICAL,
+          VImage::option()->set("background", 0xffffff)->set("expand", true));
+      img.push_back(frame);
    }
    VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
    final.set(VIPS_META_PAGE_HEIGHT, page_height + captionImage.height());
+    if (delay) final.set("delay", delay);

    void *buf;
    size_t length;
-    final.write_to_buffer(("." + type).c_str(), &buf, &length, VImage::option()
-        ->set("dither", 0));
+    final.write_to_buffer(
+        ("." + type).c_str(), &buf, &length,
+        type == "gif" ? VImage::option()->set("dither", 0) : 0);

-    //vips_shutdown();
    vips_thread_shutdown();

    Napi::Object result = Napi::Object::New(env);
-    result.Set("data", Napi::Buffer<char>::New(env, (char *)buf,
-                                                length));
+    result.Set("data", Napi::Buffer<char>::New(env, (char *)buf, length));
    result.Set("type", type);
    return result;
  } catch (std::exception const &err) {
--- a/natives/caption2.cc
+++ b/natives/caption2.cc
@ -1,11 +1,11 @@
-#include <Magick++.h>
 #include <napi.h>

 #include <iostream>
 #include <list>
+#include <vips/vips8>

 using namespace std;
-using namespace Magick;
+using namespace vips;

 Napi::Value CaptionTwo(const Napi::CallbackInfo &info) {
  Napi::Env env = info.Env();
@ -20,67 +20,60 @@ Napi::Value CaptionTwo(const Napi::CallbackInfo &info) {
    int delay =
        obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;

-    Blob blob;
+    VOption *options = VImage::option()->set("access", "sequential");

-    list<Image> frames;
-    list<Image> coalesced;
-    list<Image> captioned;
-    Blob caption_blob;
-    try {
-      readImages(&frames, Blob(data.Data(), data.Length()));
-    } catch (Magick::WarningCoder &warning) {
-      cerr << "Coder Warning: " << warning.what() << endl;
-    } catch (Magick::Warning &warning) {
-      cerr << "Warning: " << warning.what() << endl;
+    VImage in =
+        VImage::new_from_buffer(data.Data(), data.Length(), "",
+                                type == "gif" ? options->set("n", -1) : options)
+            .colourspace(VIPS_INTERPRETATION_sRGB);
+    if (!in.has_alpha()) in = in.bandjoin(255);
+
+    int width = in.width();
+    int size = width / 13;
+    int page_height = vips_image_get_page_height(in.get_image());
+    int n_pages = vips_image_get_n_pages(in.get_image());
+    int textWidth = width - ((width / 25) * 2);
+
+    string font_string =
+        (font == "roboto" ? "Roboto Condensed" : font) + " " + to_string(size);
+
+    string captionText = "<span background=\"white\">" + caption + "</span>";
+
+    VImage text =
+        VImage::text(captionText.c_str(), VImage::option()
+                                              ->set("rgba", true)
+                                              ->set("font", font_string.c_str())
+                                              ->set("align", VIPS_ALIGN_LOW)
+                                              ->set("width", textWidth));
+    VImage captionImage =
+        ((text == (vector<double>){0, 0, 0, 0}).bandand())
+            .ifthenelse(255, text)
+            .embed(width / 25, width / 25, width, text.height() + size,
+                   VImage::option()->set("extend", "white"));
+
+    vector<VImage> img;
+    for (int i = 0; i < n_pages; i++) {
+      VImage img_frame =
+          type == "gif" ? in.crop(0, i * page_height, width, page_height) : in;
+      VImage frame = img_frame.join(
+          captionImage, VIPS_DIRECTION_VERTICAL,
+          VImage::option()->set("background", 0xffffff)->set("expand", true));
+      img.push_back(frame);
    }
+    VImage final = VImage::arrayjoin(img, VImage::option()->set("across", 1));
+    final.set(VIPS_META_PAGE_HEIGHT, page_height + captionImage.height());
+    if (delay) final.set("delay", delay);

-    size_t width = frames.front().baseColumns();
-    string query(to_string(width - ((width / 25) * 2)) + "x");
-    Image caption_image(Geometry(query), Color("white"));
-    caption_image.fillColor("black");
-    caption_image.font("Helvetica Neue");
-    caption_image.fontPointsize(width / 17);
-    caption_image.read("pango:<span font_family=\"" +
-                       (font == "roboto" ? "Roboto Condensed" : font) +
-                       "\">" + caption + "</span>");
-    caption_image.extent(Geometry(width, caption_image.rows() + (width / 25)),
-                         Magick::CenterGravity);
+    void *buf;
+    size_t length;
+    final.write_to_buffer(
+        ("." + type).c_str(), &buf, &length,
+        type == "gif" ? VImage::option()->set("dither", 0) : 0);

-    coalesceImages(&coalesced, frames.begin(), frames.end());
-
-    for (Image &image : coalesced) {
-      Image appended;
-      list<Image> images;
-      image.backgroundColor("white");
-      if (top) {
-        images.push_back(caption_image);
-        images.push_back(image);
-      } else {
-        images.push_back(image);
-        images.push_back(caption_image);
-      }
-      appendImages(&appended, images.begin(), images.end(), true);
-      appended.repage();
-      appended.magick(type);
-      appended.animationDelay(delay == 0 ? image.animationDelay() : delay);
-      appended.gifDisposeMethod(Magick::BackgroundDispose);
-      captioned.push_back(appended);
-    }
-
-    optimizeTransparency(captioned.begin(), captioned.end());
-
-    if (type == "gif") {
-      for (Image &image : captioned) {
-        image.quantizeDither(false);
-        image.quantize();
-      }
-    }
-
-    writeImages(captioned.begin(), captioned.end(), &blob);
+    vips_thread_shutdown();

    Napi::Object result = Napi::Object::New(env);
-    result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
-                                                blob.length()));
+    result.Set("data", Napi::Buffer<char>::Copy(env, (char *)buf, length));
    result.Set("type", type);
    return result;
  } catch (std::exception const &err) {
--- a/natives/colors.cc
+++ b/natives/colors.cc
@ -1,11 +1,14 @@
-#include <Magick++.h>
 #include <napi.h>

 #include <iostream>
 #include <list>
+#include <vips/vips8>

 using namespace std;
-using namespace Magick;
+using namespace vips;
+
+VImage sepia = VImage::new_matrixv(3, 3, 0.3588, 0.7044, 0.1368, 0.2990, 0.5870,
+                                   0.1140, 0.2392, 0.4696, 0.0912);

 Napi::Value Colors(const Napi::CallbackInfo &info) {
  Napi::Env env = info.Env();
@ -20,21 +23,24 @@ Napi::Value Colors(const Napi::CallbackInfo &info) {
    int delay =
        obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;

-    Blob blob;
+    VOption *options = VImage::option()->set("access", "sequential");

-    list<Image> frames;
-    list<Image> coalesced;
-    list<Image> colored;
-    try {
-      readImages(&frames, Blob(data.Data(), data.Length()));
-    } catch (Magick::WarningCoder &warning) {
-      cerr << "Coder Warning: " << warning.what() << endl;
-    } catch (Magick::Warning &warning) {
-      cerr << "Warning: " << warning.what() << endl;
+    VImage in =
+        VImage::new_from_buffer(data.Data(), data.Length(), "",
+                                type == "gif" ? options->set("n", -1) : options)
+            .colourspace(VIPS_INTERPRETATION_sRGB);
+
+    VImage out;
+
+    if (color == "blurple") {
+      out = in;
+    } else if (color == "grayscale") {
+      out = in.colourspace(VIPS_INTERPRETATION_B_W);
+    } else if (color == "sepia") {
+      out = in.flatten().recomb(sepia);
    }
-    coalesceImages(&coalesced, frames.begin(), frames.end());

-    for (Image &image : coalesced) {
+    /*for (Image &image : coalesced) {
      if (color == "blurple") {
        image.threshold(49151.25);
        image.levelColors(old ? "#7289DA" : "#5865F2", "white");
@ -47,22 +53,18 @@ Napi::Value Colors(const Napi::CallbackInfo &info) {
      image.magick(type);
      image.animationDelay(delay == 0 ? image.animationDelay() : delay);
      colored.push_back(image);
-    }
+    }*/

-    optimizeTransparency(colored.begin(), colored.end());
+    if (delay) out.set("delay", delay);

-    if (type == "gif") {
-      for (Image &image : colored) {
-        image.quantizeDitherMethod(FloydSteinbergDitherMethod);
-        image.quantize();
-      }
-    }
+    void *buf;
+    size_t length;
+    out.write_to_buffer(("." + type).c_str(), &buf, &length);

-    writeImages(colored.begin(), colored.end(), &blob);
+    vips_thread_shutdown();

    Napi::Object result = Napi::Object::New(env);
-    result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
-                                                blob.length()));
+    result.Set("data", Napi::Buffer<char>::Copy(env, (char *)buf, length));
    result.Set("type", type);
    return result;
  } catch (std::exception const &err) {