Release v0.26.2

docs/api-output.md

@@ -372,6 +372,8 @@ Warning: multiple sharp instances concurrently producing tile output can expose
     -   `options.skipBlanks` **[number][9]** threshold to skip tile generation, a value 0 - 255 for 8-bit images or 0 - 65535 for 16-bit images (optional, default `-1`)
     -   `options.container` **[string][2]** tile container, with value `fs` (filesystem) or `zip` (compressed file). (optional, default `'fs'`)
     -   `options.layout` **[string][2]** filesystem layout, possible values are `dz`, `iiif`, `zoomify` or `google`. (optional, default `'dz'`)
+    -   `options.centre` **[boolean][7]** centre image in tile. (optional, default `false`)
+    -   `options.center` **[boolean][7]** alternative spelling of centre. (optional, default `false`)
 
 ### Examples
 

docs/api-resize.md

@@ -209,7 +209,8 @@ Returns **Sharp**
 Trim "boring" pixels from all edges that contain values similar to the top-left pixel.
 Images consisting entirely of a single colour will calculate "boring" using the alpha channel, if any.
 
-The `info` response Object will contain `trimOffsetLeft` and `trimOffsetTop` properties.
+The `info` response Object, obtained from callback of `.toFile()` or `.toBuffer()`,
+will contain `trimOffsetLeft` and `trimOffsetTop` properties.
 
 ### Parameters
 

docs/changelog.md

@@ -4,6 +4,19 @@
 
 Requires libvips v8.10.0
 
+### v0.26.2 - 14th October 2020
+
+* Add support for EXR input. Requires libvips compiled with OpenEXR.
+  [#698](https://github.com/lovell/sharp/issues/698)
+
+* Ensure support for yarn v2.
+  [#2379](https://github.com/lovell/sharp/pull/2379)
+  [@jalovatt](https://github.com/jalovatt)
+
+* Add centre/center option to tile-based output.
+  [#2397](https://github.com/lovell/sharp/pull/2397)
+  [@beig](https://github.com/beig)
+
 ### v0.26.1 - 20th September 2020
 
 * Ensure correct pageHeight when verifying multi-page image dimensions.

docs/humans.txt

@@ -203,3 +203,6 @@ GitHub: https://github.com/derom
 
 Name: Stefan Probst
 GitHub: https://github.com/stefanprobst
+
+Name: Thomas Beiganz
+GitHub: https://github.com/beig

docs/index.html

@@ -19,7 +19,7 @@
   <link rel="apple-touch-icon-precomposed" sizes="72x72" href="https://pixel.plumbing/px/72x72/sharp-logo.svg">
   <link rel="apple-touch-icon-precomposed" href="https://pixel.plumbing/px/57x57/sharp-logo.svg">
   <link rel="author" href="/humans.txt" type="text/plain">
-  <link rel="preload" href="https://cdn.jsdelivr.net/gh/lovell/sharp@v0.26.1/docs/README.md" as="fetch" type="text/markdown" crossorigin>
+  <link rel="preload" href="https://cdn.jsdelivr.net/gh/lovell/sharp@v0.26.2/docs/README.md" as="fetch" type="text/markdown" crossorigin>
   <link rel="preload" href="https://cdn.jsdelivr.net/gh/lovell/sharp@master/docs/image/sharp-logo.svg" as="image" type="image/svg+xml" crossorigin>
   <link rel="dns-prefetch" href="https://pixel.plumbing">
   <link rel="dns-prefetch" href="https://www.google-analytics.com">
@@ -139,7 +139,7 @@
         docuteApiTitlePlugin,
         docuteApiSearchPlugin
       ],
-      sourcePath: 'https://cdn.jsdelivr.net/gh/lovell/sharp@v0.26.1/docs',
+      sourcePath: 'https://cdn.jsdelivr.net/gh/lovell/sharp@v0.26.2/docs',
       nav: [
         {
           title: 'Funding',

install/libvips.js

@@ -80,9 +80,12 @@ try {
         throw new Error(`Use with glibc ${detectLibc.version} requires manual installation of libvips >= ${minimumLibvipsVersion}`);
       }
     }
-    if (!semver.satisfies(process.versions.node, process.env.npm_package_engines_node)) {
-      throw new Error(`Expected Node.js version ${process.env.npm_package_engines_node} but found ${process.versions.node}`);
+
+    const supportedNodeVersion = process.env.npm_package_engines_node || require('../package.json').engines.node;
+    if (!semver.satisfies(process.versions.node, supportedNodeVersion)) {
+      throw new Error(`Expected Node.js version ${supportedNodeVersion} but found ${process.versions.node}`);
     }
+
     // Download to per-process temporary file
     const tarFilename = ['libvips', minimumLibvipsVersion, platformAndArch].join('-') + '.tar.br';
     const tarPathCache = path.join(libvips.cachePath(), tarFilename);

lib/constructor.js

@@ -238,6 +238,7 @@ const Sharp = function (input, options) {
     tileAngle: 0,
     tileSkipBlanks: -1,
     tileBackground: [255, 255, 255, 255],
+    tileCentre: false,
     linearA: 1,
     linearB: 0,
     // Function to notify of libvips warnings

lib/output.js

@@ -658,6 +658,8 @@ function raw () {
  * @param {number} [options.skipBlanks=-1] threshold to skip tile generation, a value 0 - 255 for 8-bit images or 0 - 65535 for 16-bit images
  * @param {string} [options.container='fs'] tile container, with value `fs` (filesystem) or `zip` (compressed file).
  * @param {string} [options.layout='dz'] filesystem layout, possible values are `dz`, `iiif`, `zoomify` or `google`.
+ * @param {boolean} [options.centre=false] centre image in tile.
+ * @param {boolean} [options.center=false] alternative spelling of centre.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -726,6 +728,11 @@ function tile (options) {
     } else if (is.defined(options.layout) && options.layout === 'google') {
       this.options.tileSkipBlanks = 5;
     }
+    // Center image in tile
+    const centre = is.bool(options.center) ? options.center : options.centre;
+    if (is.defined(centre)) {
+      this._setBooleanOption('tileCentre', centre);
+    }
   }
   // Format
   if (is.inArray(this.options.formatOut, ['jpeg', 'png', 'webp'])) {

lib/resize.js

@@ -386,7 +386,8 @@ function extract (options) {
  * Trim "boring" pixels from all edges that contain values similar to the top-left pixel.
  * Images consisting entirely of a single colour will calculate "boring" using the alpha channel, if any.
  *
- * The `info` response Object will contain `trimOffsetLeft` and `trimOffsetTop` properties.
+ * The `info` response Object, obtained from callback of `.toFile()` or `.toBuffer()`,
+ * will contain `trimOffsetLeft` and `trimOffsetTop` properties.
  *
  * @param {number} [threshold=10] the allowed difference from the top-left pixel, a number greater than zero.
  * @returns {Sharp}

package.json

@@ -1,7 +1,7 @@
 {
   "name": "sharp",
   "description": "High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP and TIFF images",
-  "version": "0.26.1",
+  "version": "0.26.2",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://github.com/lovell/sharp",
   "contributors": [

src/common.cc

@@ -180,6 +180,7 @@ namespace sharp {
       case ImageType::OPENSLIDE: id = "openslide"; break;
       case ImageType::PPM: id = "ppm"; break;
       case ImageType::FITS: id = "fits"; break;
+      case ImageType::EXR: id = "exr"; break;
       case ImageType::VIPS: id = "vips"; break;
       case ImageType::RAW: id = "raw"; break;
       case ImageType::UNKNOWN: id = "unknown"; break;
@@ -210,6 +211,7 @@ namespace sharp {
     { "openslideload", ImageType::OPENSLIDE },
     { "ppmload", ImageType::PPM },
     { "fitsload", ImageType::FITS },
+    { "openexrload", ImageType::EXR },
     { "vipsload", ImageType::VIPS },
     { "rawload", ImageType::RAW }
   };

src/common.h

@@ -111,6 +111,7 @@ namespace sharp {
     OPENSLIDE,
     PPM,
     FITS,
+    EXR,
     VIPS,
     RAW,
     UNKNOWN,

src/pipeline.cc

@@ -1014,6 +1014,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("suffix", const_cast<char*>(suffix.data()))
             ->set("angle", CalculateAngleRotation(baton->tileAngle))
             ->set("background", baton->tileBackground)
+            ->set("centre", baton->tileCentre)
             ->set("skip_blanks", baton->tileSkipBlanks);
           // libvips chooses a default depth based on layout. Instead of replicating that logic here by
           // not passing anything - libvips will handle choice
@@ -1403,6 +1404,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   baton->tileDepth = static_cast<VipsForeignDzDepth>(
     vips_enum_from_nick(nullptr, VIPS_TYPE_FOREIGN_DZ_DEPTH,
     sharp::AttrAsStr(options, "tileDepth").data()));
+  baton->tileCentre = sharp::AttrAsBool(options, "tileCentre");
 
   // Force random access for certain operations
   if (baton->input->access == VIPS_ACCESS_SEQUENTIAL) {

src/pipeline.h

@@ -79,6 +79,7 @@ struct PipelineBaton {
   int cropOffsetLeft;
   int cropOffsetTop;
   bool premultiplied;
+  bool tileCentre;
   std::string kernel;
   bool fastShrinkOnLoad;
   double tintA;

test/unit/tile.js

@@ -289,6 +289,14 @@ describe('Tile', function () {
     });
   });
 
+  it('Invalid center parameter value fail', function () {
+    assert.throws(function () {
+      sharp().tile({
+        centre: 'true'
+      });
+    });
+  });
+
   it('Deep Zoom layout', function (done) {
     const directory = fixtures.path('output.dzi_files');
     rimraf(directory, function () {
@@ -765,6 +773,46 @@ describe('Tile', function () {
     });
   });
 
+  it('Google layout with center image in tile', function (done) {
+    const directory = fixtures.path('output.google_center.dzi');
+    rimraf(directory, function () {
+      sharp(fixtures.inputJpg)
+        .tile({
+          center: true,
+          layout: 'google'
+        })
+        .toFile(directory, function (err, info) {
+          if (err) throw err;
+          assert.strictEqual('dz', info.format);
+          assert.strictEqual(2725, info.width);
+          assert.strictEqual(2225, info.height);
+          assert.strictEqual(3, info.channels);
+          assert.strictEqual('number', typeof info.size);
+          fixtures.assertSimilar(fixtures.expected('tile_centered.jpg'), fs.readFileSync(path.join(directory, '0', '0', '0.jpg')), done);
+        });
+    });
+  });
+
+  it('Google layout with center image in tile centre', function (done) {
+    const directory = fixtures.path('output.google_center.dzi');
+    rimraf(directory, function () {
+      sharp(fixtures.inputJpg)
+        .tile({
+          centre: true,
+          layout: 'google'
+        })
+        .toFile(directory, function (err, info) {
+          if (err) throw err;
+          assert.strictEqual('dz', info.format);
+          assert.strictEqual(2725, info.width);
+          assert.strictEqual(2225, info.height);
+          assert.strictEqual(3, info.channels);
+          assert.strictEqual('number', typeof info.size);
+          fixtures.assertSimilar(fixtures.expected('tile_centered.jpg'), fs.readFileSync(path.join(directory, '0', '0', '0.jpg')), done);
+        });
+    });
+  });
+
   it('IIIF layout', function (done) {
     const directory = fixtures.path('output.iiif.info');
     rimraf(directory, function () {