Prerelease v0.33.5-rc.1

Previous version erroneously targetted ARMv7

.github/ISSUE_TEMPLATE/installation.md

@@ -43,7 +43,7 @@ and try again before opening an issue.
 
 <!-- Please place an [x] in the relevant box to confirm. -->
 
-- [ ] I am using npm >= 9.6.5 with `--include=optional`
+- [ ] I am using npm >= 10.1.0 with `--include=optional`
 - [ ] I am using yarn >= 3.2.0
 - [ ] I am using pnpm >= 7.1.0 with `--no-optional=false`
 - [ ] I am using Deno

.github/workflows/ci.yml

@@ -36,13 +36,13 @@ jobs:
             container: node:20-alpine3.18
             nodejs_version_major: 20
             platform: linuxmusl-x64
-          - os: macos-11
+          - os: macos-12
             nodejs_arch: x64
             nodejs_version: "^18.17.0"
             nodejs_version_major: 18
             platform: darwin-x64
             prebuild: true
-          - os: macos-11
+          - os: macos-12
             nodejs_arch: x64
             nodejs_version: "^20.3.0"
             nodejs_version_major: 20
@@ -84,7 +84,7 @@ jobs:
       - name: Dependencies (Rocky Linux glibc)
         if: contains(matrix.container, 'rockylinux')
         run: |
-          dnf install -y gcc-toolset-11-gcc-c++ make git python3 fontconfig google-noto-sans-fonts
+          dnf install -y gcc-toolset-11-gcc-c++ make git python3.12 fontconfig google-noto-sans-fonts
           echo "/opt/rh/gcc-toolset-11/root/usr/bin" >> $GITHUB_PATH
       - name: Dependencies (Linux musl)
         if: contains(matrix.container, 'alpine')
@@ -131,7 +131,7 @@ jobs:
       matrix:
         include:
           - platform: linux-arm
-            distro: buster
+            distro: bullseye
             run_on_arch: armv6
             nodejs_arch: armv6l
             nodejs_hostname: unofficial-builds.nodejs.org
@@ -171,7 +171,7 @@ jobs:
       contents: write
     name: wasm32 - prebuild
     runs-on: ubuntu-22.04
-    container: "emscripten/emsdk:3.1.56"
+    container: "emscripten/emsdk:3.1.64"
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/npm.yml

@@ -31,6 +31,10 @@ jobs:
             runs-on: ubuntu-22.04
             runtime: node
             package-manager: yarn-pnp
+          - name: linux-x64-node-yarn-v1
+            runs-on: ubuntu-22.04
+            runtime: node
+            package-manager: yarn-v1
           - name: linux-x64-deno
             runs-on: ubuntu-22.04
             runtime: deno
@@ -39,26 +43,30 @@ jobs:
             runtime: bun
 
           - name: darwin-x64-node-npm
-            runs-on: macos-11
+            runs-on: macos-12
             runtime: node
             package-manager: npm
           - name: darwin-x64-node-pnpm
-            runs-on: macos-11
+            runs-on: macos-12
             runtime: node
             package-manager: pnpm
           - name: darwin-x64-node-yarn
-            runs-on: macos-11
+            runs-on: macos-12
             runtime: node
             package-manager: yarn
           - name: darwin-x64-node-yarn-pnp
-            runs-on: macos-11
+            runs-on: macos-12
             runtime: node
             package-manager: yarn-pnp
+          - name: darwin-x64-node-yarn-v1
+            runs-on: macos-12
+            runtime: node
+            package-manager: yarn-v1
           - name: darwin-x64-deno
-            runs-on: macos-11
+            runs-on: macos-12
             runtime: deno
           - name: darwin-x64-bun
-            runs-on: macos-11
+            runs-on: macos-12
             runtime: bun
 
           - name: win32-x64-node-npm
@@ -77,6 +85,10 @@ jobs:
             runs-on: windows-2019
             runtime: node
             package-manager: yarn-pnp
+          - name: win32-x64-node-yarn-v1
+            runs-on: windows-2019
+            runtime: node
+            package-manager: yarn-v1
           - name: win32-x64-deno
             runs-on: windows-2019
             runtime: deno
@@ -89,7 +101,7 @@ jobs:
           node-version: 20
       - name: Install pnpm
         if: ${{ matrix.package-manager == 'pnpm' }}
-        uses: pnpm/action-setup@v2
+        uses: pnpm/action-setup@v4
         with:
           version: 8
       - name: Install Deno
@@ -99,13 +111,13 @@ jobs:
           deno-version: v1.x
       - name: Install Bun
         if: ${{ matrix.runtime == 'bun' }}
-        uses: oven-sh/setup-bun@v1
+        uses: oven-sh/setup-bun@v2
         with:
           bun-version: latest
 
       - name: Version
         id: version
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           script: |
             core.setOutput('semver', context.ref.replace('refs/tags/v',''))
@@ -163,6 +175,14 @@ jobs:
           yarn install
           yarn node release.mjs
 
+      - name: Run with Node.js + yarn v1
+        if: ${{ matrix.package-manager == 'yarn-v1' }}
+        run: |
+          corepack enable
+          yarn set version classic
+          yarn install
+          node release.mjs
+
       - name: Run with Deno
         if: ${{ matrix.runtime == 'deno' }}
         run: deno run --allow-read --allow-ffi release.mjs

docs/api-input.md

@@ -42,6 +42,7 @@ A `Promise` is returned when `callback` is not provided.
 - `xmp`: Buffer containing raw XMP data, if present
 - `tifftagPhotoshop`: Buffer containing raw TIFFTAG_PHOTOSHOP data, if present
 - `formatMagick`: String containing format for images loaded via *magick
+- `comments`: Array of keyword/text pairs representing PNG text blocks, if present.
 
 
 

docs/api-operation.md

@@ -231,7 +231,7 @@ const output = await sharp(input).median(5).toBuffer();
 
 
 ## blur
-> blur([sigma]) ⇒ <code>Sharp</code>
+> blur([options]) ⇒ <code>Sharp</code>
 
 Blur the image.
 
@@ -245,9 +245,12 @@ When a `sigma` is provided, performs a slower, more accurate Gaussian blur.
 - <code>Error</code> Invalid parameters
 
 
-| Param | Type | Description |
+| Param | Type | Default | Description |
-| --- | --- | --- |
+| --- | --- | --- | --- |
-| [sigma] | <code>number</code> | a value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`. |
+| [options] | <code>Object</code> \| <code>number</code> \| <code>Boolean</code> |  |  |
+| [options.sigma] | <code>number</code> |  | a value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`. |
+| [options.precision] | <code>string</code> | <code>&quot;&#x27;integer&#x27;&quot;</code> | How accurate the operation should be, one of: integer, float, approximate. |
+| [options.minAmplitude] | <code>number</code> | <code>0.2</code> | A value between 0.001 and 1. A smaller value will generate a larger, more accurate mask. |
 
 **Example**  
 ```js
@@ -580,7 +583,7 @@ Recombine the image with the specified matrix.
 
 | Param | Type | Description |
 | --- | --- | --- |
-| inputMatrix | <code>Array.&lt;Array.&lt;number&gt;&gt;</code> | 3x3 Recombination matrix |
+| inputMatrix | <code>Array.&lt;Array.&lt;number&gt;&gt;</code> | 3x3 or 4x4 Recombination matrix |
 
 **Example**  
 ```js

docs/api-output.md

@@ -24,7 +24,7 @@ A `Promise` is returned when `callback` is not provided.
 | Param | Type | Description |
 | --- | --- | --- |
 | fileOut | <code>string</code> | the path to write the image data to. |
-| [callback] | <code>function</code> | called on completion with two arguments `(err, info)`. `info` contains the output image `format`, `size` (bytes), `width`, `height`, `channels` and `premultiplied` (indicating if premultiplication was used). When using a crop strategy also contains `cropOffsetLeft` and `cropOffsetTop`. When using the attention crop strategy also contains `attentionX` and `attentionY`, the focal point of the cropped region. May also contain `textAutofitDpi` (dpi the font was rendered at) if image was created from text. |
+| [callback] | <code>function</code> | called on completion with two arguments `(err, info)`. `info` contains the output image `format`, `size` (bytes), `width`, `height`, `channels` and `premultiplied` (indicating if premultiplication was used). When using a crop strategy also contains `cropOffsetLeft` and `cropOffsetTop`. When using the attention crop strategy also contains `attentionX` and `attentionY`, the focal point of the cropped region. Animated output will also contain `pageHeight` and `pages`. May also contain `textAutofitDpi` (dpi the font was rendered at) if image was created from text. |
 
 **Example**  
 ```js
@@ -59,6 +59,7 @@ See [withMetadata](#withmetadata) for control over this.
 - `info` contains the output image `format`, `size` (bytes), `width`, `height`,
 `channels` and `premultiplied` (indicating if premultiplication was used).
 When using a crop strategy also contains `cropOffsetLeft` and `cropOffsetTop`.
+Animated output will also contain `pageHeight` and `pages`.
 May also contain `textAutofitDpi` (dpi the font was rendered at) if image was created from text.
 
 A `Promise` is returned when `callback` is not provided.

docs/changelog.md

@@ -2,7 +2,40 @@
 
 ## v0.33 - *gauge*
 
-Requires libvips v8.15.2
+Requires libvips v8.15.3
+
+### v0.33.5 - TBD
+
+* Upgrade to libvips v8.15.3 for upstream bug fixes.
+
+* Add `pageHeight` and `pages` to response of multi-page output.
+  [#3411](https://github.com/lovell/sharp/issues/3411)
+
+* Ensure option to force use of a globally-installed libvips works correctly.
+  [#4111](https://github.com/lovell/sharp/pull/4111)
+  [@project0](https://github.com/project0)
+
+* Minimise use of `engines` property to improve yarn v1 support.
+  [#4130](https://github.com/lovell/sharp/issues/4130)
+
+* Ensure `sharp.format.heif` includes only AVIF when using prebuilt binaries.
+  [#4132](https://github.com/lovell/sharp/issues/4132)
+
+* Add support to recomb operation for 4x4 matrices.
+  [#4147](https://github.com/lovell/sharp/pull/4147)
+  [@ton11797](https://github.com/ton11797)
+
+* Expose PNG text chunks as `comments` metadata.
+  [#4157](https://github.com/lovell/sharp/pull/4157)
+  [@nkeynes](https://github.com/nkeynes)
+
+* Expose optional `precision` and `minAmplitude` parameters of `blur` operation.
+  [#4168](https://github.com/lovell/sharp/pull/4168)
+  [#4172](https://github.com/lovell/sharp/pull/4172)
+  [@marcosc90](https://github.com/marcosc90)
+
+* Ensure `keepIccProfile` avoids colour transformation where possible.
+  [#4186](https://github.com/lovell/sharp/issues/4186)
 
 ### v0.33.4 - 16th May 2024
 

docs/humans.txt

@@ -28,7 +28,7 @@ Name: Brandon Aaron
 GitHub: https://github.com/brandonaaron
 
 Name: Andreas Lind
-GitHub: https://github.com/papandreouGitHub:
+GitHub: https://github.com/papandreou
 
 Name: Maurus Cuelenaere
 GitHub: https://github.com/mcuelenaere
@@ -261,7 +261,7 @@ GitHub: https://github.com/brahima
 Name: Anton Marsden
 GitHub: https://github.com/antonmarsden
 
-Name:  Marcos Casagrande
+Name: Marcos Casagrande
 GitHub: https://github.com/marcosc90
 
 Name: Emanuel Jöbstl
@@ -293,3 +293,12 @@ GitHub: https://github.com/mertalev
 
 Name: Adriaan Meuris
 GitHub: https://github.com/adriaanmeuris
+
+Name: Richard Hillmann
+GitHub: https://github.com/project0
+
+Name: Pongsatorn Manusopit
+GitHub: https://github.com/ton11797
+
+Name: Nathan Keynes
+GitHub: https://github.com/nkeynes

docs/index.html

@@ -10,7 +10,7 @@
   <meta http-equiv="Content-Security-Policy" content="default-src 'self'; connect-src 'self'; object-src 'none';
     style-src 'unsafe-inline';
     img-src 'unsafe-inline' data: https://cdn.jsdelivr.net/gh/lovell/;
-    script-src 'self' 'unsafe-inline' 'unsafe-eval' https://static.cloudflareinsights.com/beacon.min.js;">
+    script-src 'self' 'unsafe-inline' 'unsafe-eval' https://static.cloudflareinsights.com/beacon.min.js/;">
   <link rel="icon" type="image/svg+xml" href="https://cdn.jsdelivr.net/gh/lovell/sharp@main/docs/image/sharp-logo.svg">
   <link rel="icon" type="image/png" sizes="32x32" href="https://cdn.jsdelivr.net/gh/lovell/sharp@main/docs/image/sharp-logo-32.png">
   <link rel="author" href="/humans.txt" type="text/plain">

docs/install.md

@@ -20,11 +20,6 @@ pnpm add sharp
 yarn add sharp
 ```
 
-```sh
-# yarn v1 (maintenance mode)
-yarn add sharp --ignore-engines
-```
-
 ```sh
 bun add sharp
 ```
@@ -92,7 +87,7 @@ Use the [supportedArchitectures](https://pnpm.io/package_json#pnpmsupportedarchi
 ## Custom libvips
 
 To use a custom, globally-installed version of libvips instead of the provided binaries,
-make sure it is at least the version listed under `engines.libvips` in the `package.json` file
+make sure it is at least the version listed under `config.libvips` in the `package.json` file
 and that it can be located using `pkg-config --modversion vips-cpp`.
 
 For help compiling libvips and its dependencies, please see

install/check.js

@@ -18,7 +18,7 @@ try {
     }
     try {
       const gyp = require('node-gyp');
-      log(`Found node-gyp version ${gyp().version}`);
+      log(`Found node-gyp ${gyp().version}`);
     } catch (err) {
       log('Please add node-gyp to your dependencies');
       return;
@@ -30,7 +30,7 @@ try {
     }
   };
 
-  if (useGlobalLibvips()) {
+  if (useGlobalLibvips(log)) {
     buildFromSource(`Detected globally-installed libvips v${globalLibvipsVersion()}`);
   } else if (process.env.npm_config_build_from_source) {
     buildFromSource('Detected --build-from-source flag');

lib/constructor.js

@@ -226,6 +226,8 @@ const Sharp = function (input, options) {
     negateAlpha: true,
     medianSize: 0,
     blurSigma: 0,
+    precision: 'integer',
+    minAmpl: 0.2,
     sharpenSigma: 0,
     sharpenM1: 1,
     sharpenM2: 2,

lib/index.d.ts

@@ -464,7 +464,7 @@ declare namespace sharp {
          * @throws {Error} Invalid parameters
          * @returns A sharp instance that can be used to chain operations
          */
-        blur(sigma?: number | boolean): Sharp;
+        blur(sigma?: number | boolean | BlurOptions): Sharp;
 
         /**
          * Merge alpha transparency channel, if any, with background.
@@ -571,11 +571,11 @@ declare namespace sharp {
 
         /**
          * Recomb the image with the specified matrix.
-         * @param inputMatrix 3x3 Recombination matrix
+         * @param inputMatrix 3x3 Recombination matrix or 4x4 Recombination matrix
          * @throws {Error} Invalid parameters
          * @returns A sharp instance that can be used to chain operations
          */
-        recomb(inputMatrix: Matrix3x3): Sharp;
+        recomb(inputMatrix: Matrix3x3 | Matrix4x4): Sharp;
 
         /**
          * Transforms the image using brightness, saturation, hue rotation and lightness.
@@ -1108,6 +1108,8 @@ declare namespace sharp {
         resolutionUnit?: 'inch' | 'cm' | undefined;
         /** String containing format for images loaded via *magick */
         formatMagick?: string | undefined;
+        /** Array of keyword/text pairs representing PNG text blocks, if present. */
+        comments?: CommentsMetadata[] | undefined;
     }
 
     interface LevelMetadata {
@@ -1115,6 +1117,11 @@ declare namespace sharp {
         height: number;
     }
 
+    interface CommentsMetadata {
+        keyword: string;
+        text: string;
+    }
+
     interface Stats {
         /** Array of channel statistics for each channel in the image. */
         channels: ChannelStats[];
@@ -1335,6 +1342,17 @@ declare namespace sharp {
         background?: Color | undefined;
     }
 
+    type Precision = 'integer' | 'float' | 'approximate';
+
+    interface BlurOptions {
+        /** A value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2` */
+        sigma: number;
+        /** A value between 0.001 and 1. A smaller value will generate a larger, more accurate mask. */
+        minAmplitude?: number;
+        /** How accurate the operation should be, one of: integer, float, approximate. (optional, default "integer") */
+        precision?: Precision | undefined;
+    }
+
     interface FlattenOptions {
         /** background colour, parsed by the color module, defaults to black. (optional, default {r:0,g:0,b:0}) */
         background?: Color | undefined;
@@ -1730,6 +1748,7 @@ declare namespace sharp {
 
     type Matrix2x2 = [[number, number], [number, number]];
     type Matrix3x3 = [[number, number, number], [number, number, number], [number, number, number]];
+    type Matrix4x4 = [[number, number, number, number], [number, number, number, number], [number, number, number, number], [number, number, number, number]];
 }
 
 export = sharp;

lib/input.js

@@ -450,6 +450,7 @@ function _isStreamInput () {
  * - `xmp`: Buffer containing raw XMP data, if present
  * - `tifftagPhotoshop`: Buffer containing raw TIFFTAG_PHOTOSHOP data, if present
  * - `formatMagick`: String containing format for images loaded via *magick
+ * - `comments`: Array of keyword/text pairs representing PNG text blocks, if present.
  *
  * @example
  * const metadata = await sharp(input).metadata();

lib/libvips.js

@@ -10,10 +10,10 @@ const semverGreaterThanOrEqualTo = require('semver/functions/gte');
 const semverSatisfies = require('semver/functions/satisfies');
 const detectLibc = require('detect-libc');
 
-const { engines, optionalDependencies } = require('../package.json');
+const { config, engines, optionalDependencies } = require('../package.json');
 
 const minimumLibvipsVersionLabelled = process.env.npm_package_config_libvips || /* istanbul ignore next */
-  engines.libvips;
+  config.libvips;
 const minimumLibvipsVersion = semverCoerce(minimumLibvipsVersionLabelled).version;
 
 const prebuiltPlatforms = [
@@ -162,21 +162,23 @@ const pkgConfigPath = () => {
   }
 };
 
-const skipSearch = (status, reason) => {
+const skipSearch = (status, reason, logger) => {
-  log(`Detected ${reason}, skipping search for globally-installed libvips`);
+  if (logger) {
+    logger(`Detected ${reason}, skipping search for globally-installed libvips`);
+  }
   return status;
 };
 
-const useGlobalLibvips = () => {
+const useGlobalLibvips = (logger) => {
   if (Boolean(process.env.SHARP_IGNORE_GLOBAL_LIBVIPS) === true) {
-    return skipSearch(false, 'SHARP_IGNORE_GLOBAL_LIBVIPS');
+    return skipSearch(false, 'SHARP_IGNORE_GLOBAL_LIBVIPS', logger);
   }
   if (Boolean(process.env.SHARP_FORCE_GLOBAL_LIBVIPS) === true) {
-    return skipSearch(true, 'SHARP_FORCE_GLOBAL_LIBVIPS');
+    return skipSearch(true, 'SHARP_FORCE_GLOBAL_LIBVIPS', logger);
   }
   /* istanbul ignore next */
   if (isRosetta()) {
-    return skipSearch(false, 'Rosetta');
+    return skipSearch(false, 'Rosetta', logger);
   }
   const globalVipsVersion = globalLibvipsVersion();
   return !!globalVipsVersion && /* istanbul ignore next */

lib/operation.js

@@ -6,6 +6,17 @@
 const color = require('color');
 const is = require('./is');
 
+/**
+ * How accurate an operation should be.
+ * @member
+ * @private
+ */
+const vipsPrecision = {
+  integer: 'integer',
+  float: 'float',
+  approximate: 'approximate'
+};
+
 /**
  * Rotate the output image by either an explicit angle
  * or auto-orient based on the EXIF `Orientation` tag.
@@ -367,23 +378,51 @@ function median (size) {
  *   .blur(5)
  *   .toBuffer();
  *
- * @param {number} [sigma] a value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`.
+ * @param {Object|number|Boolean} [options]
+ * @param {number} [options.sigma] a value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`.
+ * @param {string} [options.precision='integer'] How accurate the operation should be, one of: integer, float, approximate.
+ * @param {number} [options.minAmplitude=0.2] A value between 0.001 and 1. A smaller value will generate a larger, more accurate mask.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
-function blur (sigma) {
+function blur (options) {
-  if (!is.defined(sigma)) {
+  let sigma;
+  if (is.number(options)) {
+    sigma = options;
+  } else if (is.plainObject(options)) {
+    if (!is.number(options.sigma)) {
+      throw is.invalidParameterError('options.sigma', 'number between 0.3 and 1000', sigma);
+    }
+    sigma = options.sigma;
+    if ('precision' in options) {
+      if (is.string(vipsPrecision[options.precision])) {
+        this.options.precision = vipsPrecision[options.precision];
+      } else {
+        throw is.invalidParameterError('precision', 'one of: integer, float, approximate', options.precision);
+      }
+    }
+    if ('minAmplitude' in options) {
+      if (is.number(options.minAmplitude) && is.inRange(options.minAmplitude, 0.001, 1)) {
+        this.options.minAmpl = options.minAmplitude;
+      } else {
+        throw is.invalidParameterError('minAmplitude', 'number between 0.001 and 1', options.minAmplitude);
+      }
+    }
+  }
+
+  if (!is.defined(options)) {
     // No arguments: default to mild blur
     this.options.blurSigma = -1;
-  } else if (is.bool(sigma)) {
+  } else if (is.bool(options)) {
     // Boolean argument: apply mild blur?
-    this.options.blurSigma = sigma ? -1 : 0;
+    this.options.blurSigma = options ? -1 : 0;
   } else if (is.number(sigma) && is.inRange(sigma, 0.3, 1000)) {
     // Numeric argument: specific sigma
     this.options.blurSigma = sigma;
   } else {
     throw is.invalidParameterError('sigma', 'number between 0.3 and 1000', sigma);
   }
+
   return this;
 }
 
@@ -787,24 +826,22 @@ function linear (a, b) {
  *     // With this example input, a sepia filter has been applied
  *   });
  *
- * @param {Array<Array<number>>} inputMatrix - 3x3 Recombination matrix
+ * @param {Array<Array<number>>} inputMatrix - 3x3 or 4x4 Recombination matrix
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
 function recomb (inputMatrix) {
-  if (!Array.isArray(inputMatrix) || inputMatrix.length !== 3 ||
+  if (!Array.isArray(inputMatrix)) {
-      inputMatrix[0].length !== 3 ||
+    throw is.invalidParameterError('inputMatrix', 'array', inputMatrix);
-      inputMatrix[1].length !== 3 ||
-      inputMatrix[2].length !== 3
-  ) {
-    // must pass in a kernel
-    throw new Error('Invalid recombination matrix');
   }
-  this.options.recombMatrix = [
+  if (inputMatrix.length !== 3 && inputMatrix.length !== 4) {
-    inputMatrix[0][0], inputMatrix[0][1], inputMatrix[0][2],
+    throw is.invalidParameterError('inputMatrix', '3x3 or 4x4 array', inputMatrix.length);
-    inputMatrix[1][0], inputMatrix[1][1], inputMatrix[1][2],
+  }
-    inputMatrix[2][0], inputMatrix[2][1], inputMatrix[2][2]
+  const recombMatrix = inputMatrix.flat().map(Number);
-  ].map(Number);
+  if (recombMatrix.length !== 9 && recombMatrix.length !== 16) {
+    throw is.invalidParameterError('inputMatrix', 'cardinality of 9 or 16', recombMatrix.length);
+  }
+  this.options.recombMatrix = recombMatrix;
   return this;
 }
 

lib/output.js

@@ -65,6 +65,7 @@ const bitdepthFromColourCount = (colours) => 1 << 31 - Math.clz32(Math.ceil(Math
  * `channels` and `premultiplied` (indicating if premultiplication was used).
  * When using a crop strategy also contains `cropOffsetLeft` and `cropOffsetTop`.
  * When using the attention crop strategy also contains `attentionX` and `attentionY`, the focal point of the cropped region.
+ * Animated output will also contain `pageHeight` and `pages`.
  * May also contain `textAutofitDpi` (dpi the font was rendered at) if image was created from text.
  * @returns {Promise<Object>} - when no callback is provided
  * @throws {Error} Invalid parameters
@@ -109,6 +110,7 @@ function toFile (fileOut, callback) {
  * - `info` contains the output image `format`, `size` (bytes), `width`, `height`,
  * `channels` and `premultiplied` (indicating if premultiplication was used).
  * When using a crop strategy also contains `cropOffsetLeft` and `cropOffsetTop`.
+ * Animated output will also contain `pageHeight` and `pages`.
  * May also contain `textAutofitDpi` (dpi the font was rendered at) if image was created from text.
  *
  * A `Promise` is returned when `callback` is not provided.

lib/sharp.js

@@ -57,7 +57,6 @@ if (sharp) {
     help.push(
       '- Ensure optional dependencies can be installed:',
       '    npm install --include=optional sharp',
-      '    yarn add sharp --ignore-engines',
       '- Ensure your package manager supports multi-platform installation:',
       '    See https://sharp.pixelplumbing.com/install#cross-platform',
       '- Add platform-specific dependencies:',
@@ -73,9 +72,9 @@ if (sharp) {
   }
   if (isLinux && /(symbol not found|CXXABI_)/i.test(messages)) {
     try {
-      const { engines } = require(`@img/sharp-libvips-${runtimePlatform}/package`);
+      const { config } = require(`@img/sharp-libvips-${runtimePlatform}/package`);
       const libcFound = `${familySync()} ${versionSync()}`;
-      const libcRequires = `${engines.musl ? 'musl' : 'glibc'} ${engines.musl || engines.glibc}`;
+      const libcRequires = `${config.musl ? 'musl' : 'glibc'} ${config.musl || config.glibc}`;
       help.push(
         '- Update your OS:',
         `    Found ${libcFound}`,

lib/utility.js

@@ -75,6 +75,13 @@ if (!libvipsVersion.isGlobal) {
 }
 versions.sharp = require('../package.json').version;
 
+/* istanbul ignore next */
+if (versions.heif && format.heif) {
+  // Prebuilt binaries provide AV1
+  format.heif.input.fileSuffix = ['.avif'];
+  format.heif.output.alias = ['avif'];
+}
+
 /**
  * Gets or, when options are provided, sets the limits of _libvips'_ operation cache.
  * Existing entries in the cache will be trimmed after any change in limits.

npm/darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-darwin-arm64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with macOS 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-darwin-arm64": "1.0.2"
+    "@img/sharp-libvips-darwin-arm64": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,11 +29,7 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
-    "yarn": ">=3.2.0",
-    "pnpm": ">=7.1.0",
-    "glibc": ">=2.26"
   },
   "os": [
     "darwin"

npm/darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-darwin-x64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with macOS x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-darwin-x64": "1.0.2"
+    "@img/sharp-libvips-darwin-x64": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,11 +29,7 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
-    "yarn": ">=3.2.0",
-    "pnpm": ">=7.1.0",
-    "glibc": ">=2.26"
   },
   "os": [
     "darwin"

npm/linux-arm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-arm",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Linux (glibc) ARM (32-bit)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm": "1.0.2"
+    "@img/sharp-libvips-linux-arm": "1.0.5"
   },
   "files": [
     "lib"
@@ -29,10 +29,9 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
+  },
-    "yarn": ">=3.2.0",
+  "config": {
-    "pnpm": ">=7.1.0",
     "glibc": ">=2.28"
   },
   "os": [

npm/linux-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-arm64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Linux (glibc) 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm64": "1.0.2"
+    "@img/sharp-libvips-linux-arm64": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,10 +29,9 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
+  },
-    "yarn": ">=3.2.0",
+  "config": {
-    "pnpm": ">=7.1.0",
     "glibc": ">=2.26"
   },
   "os": [

npm/linux-s390x/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-s390x",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Linux (glibc) s390x",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-s390x": "1.0.2"
+    "@img/sharp-libvips-linux-s390x": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,10 +29,9 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
+  },
-    "yarn": ">=3.2.0",
+  "config": {
-    "pnpm": ">=7.1.0",
     "glibc": ">=2.31"
   },
   "os": [

npm/linux-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-x64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Linux (glibc) x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-x64": "1.0.2"
+    "@img/sharp-libvips-linux-x64": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,10 +29,9 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
+  },
-    "yarn": ">=3.2.0",
+  "config": {
-    "pnpm": ">=7.1.0",
     "glibc": ">=2.26"
   },
   "os": [

npm/linuxmusl-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linuxmusl-arm64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Linux (musl) 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-arm64": "1.0.2"
+    "@img/sharp-libvips-linuxmusl-arm64": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,10 +29,9 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
+  },
-    "yarn": ">=3.2.0",
+  "config": {
-    "pnpm": ">=7.1.0",
     "musl": ">=1.2.2"
   },
   "os": [

npm/linuxmusl-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linuxmusl-x64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Linux (musl) x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-x64": "1.0.2"
+    "@img/sharp-libvips-linuxmusl-x64": "1.0.4"
   },
   "files": [
     "lib"
@@ -29,10 +29,9 @@
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
+  },
-    "yarn": ">=3.2.0",
+  "config": {
-    "pnpm": ">=7.1.0",
     "musl": ">=1.2.2"
   },
   "os": [

npm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "private": "true",
   "workspaces": [
     "darwin-arm64",

npm/wasm32/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-wasm32",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with wasm32",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -28,13 +28,10 @@
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
-    "yarn": ">=3.2.0",
-    "pnpm": ">=7.1.0"
   },
   "dependencies": {
-    "@emnapi/runtime": "^1.1.1"
+    "@emnapi/runtime": "^1.2.0"
   },
   "cpu": [
     "wasm32"

npm/win32-ia32/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-ia32",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Windows x86 (32-bit)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -28,10 +28,7 @@
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
-    "yarn": ">=3.2.0",
-    "pnpm": ">=7.1.0"
   },
   "os": [
     "win32"

npm/win32-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-x64",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "description": "Prebuilt sharp for use with Windows x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -28,10 +28,7 @@
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "npm": ">=9.6.5",
-    "yarn": ">=3.2.0",
-    "pnpm": ">=7.1.0"
   },
   "os": [
     "win32"

package.json

@@ -1,7 +1,7 @@
 {
   "name": "sharp",
   "description": "High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images",
-  "version": "0.33.4",
+  "version": "0.33.5-rc.1",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
   "contributors": [
@@ -88,7 +88,8 @@
     "Mart Jansink <m.jansink@gmail.com>",
     "Lachlan Newman <lachnewman007@gmail.com>",
     "Dennis Beatty <dennis@dcbeatty.com>",
-    "Ingvar Stepanyan <me@rreverser.com>"
+    "Ingvar Stepanyan <me@rreverser.com>",
+    "Don Denton <don@happycollision.com>"
   ],
   "scripts": {
     "install": "node install/check",
@@ -138,56 +139,58 @@
   "dependencies": {
     "color": "^4.2.3",
     "detect-libc": "^2.0.3",
-    "semver": "^7.6.0"
+    "semver": "^7.6.3"
   },
   "optionalDependencies": {
-    "@img/sharp-darwin-arm64": "0.33.4",
+    "@img/sharp-darwin-arm64": "0.33.5-rc.1",
-    "@img/sharp-darwin-x64": "0.33.4",
+    "@img/sharp-darwin-x64": "0.33.5-rc.1",
-    "@img/sharp-libvips-darwin-arm64": "1.0.2",
+    "@img/sharp-libvips-darwin-arm64": "1.0.4",
-    "@img/sharp-libvips-darwin-x64": "1.0.2",
+    "@img/sharp-libvips-darwin-x64": "1.0.4",
-    "@img/sharp-libvips-linux-arm": "1.0.2",
+    "@img/sharp-libvips-linux-arm": "1.0.5",
-    "@img/sharp-libvips-linux-arm64": "1.0.2",
+    "@img/sharp-libvips-linux-arm64": "1.0.4",
-    "@img/sharp-libvips-linux-s390x": "1.0.2",
+    "@img/sharp-libvips-linux-s390x": "1.0.4",
-    "@img/sharp-libvips-linux-x64": "1.0.2",
+    "@img/sharp-libvips-linux-x64": "1.0.4",
-    "@img/sharp-libvips-linuxmusl-arm64": "1.0.2",
+    "@img/sharp-libvips-linuxmusl-arm64": "1.0.4",
-    "@img/sharp-libvips-linuxmusl-x64": "1.0.2",
+    "@img/sharp-libvips-linuxmusl-x64": "1.0.4",
-    "@img/sharp-linux-arm": "0.33.4",
+    "@img/sharp-linux-arm": "0.33.5-rc.1",
-    "@img/sharp-linux-arm64": "0.33.4",
+    "@img/sharp-linux-arm64": "0.33.5-rc.1",
-    "@img/sharp-linux-s390x": "0.33.4",
+    "@img/sharp-linux-s390x": "0.33.5-rc.1",
-    "@img/sharp-linux-x64": "0.33.4",
+    "@img/sharp-linux-x64": "0.33.5-rc.1",
-    "@img/sharp-linuxmusl-arm64": "0.33.4",
+    "@img/sharp-linuxmusl-arm64": "0.33.5-rc.1",
-    "@img/sharp-linuxmusl-x64": "0.33.4",
+    "@img/sharp-linuxmusl-x64": "0.33.5-rc.1",
-    "@img/sharp-wasm32": "0.33.4",
+    "@img/sharp-wasm32": "0.33.5-rc.1",
-    "@img/sharp-win32-ia32": "0.33.4",
+    "@img/sharp-win32-ia32": "0.33.5-rc.1",
-    "@img/sharp-win32-x64": "0.33.4"
+    "@img/sharp-win32-x64": "0.33.5-rc.1"
   },
   "devDependencies": {
-    "@emnapi/runtime": "^1.1.1",
+    "@emnapi/runtime": "^1.2.0",
-    "@img/sharp-libvips-dev": "1.0.2",
+    "@img/sharp-libvips-dev": "1.0.4",
-    "@img/sharp-libvips-dev-wasm32": "1.0.3",
+    "@img/sharp-libvips-dev-wasm32": "1.0.5",
-    "@img/sharp-libvips-win32-ia32": "1.0.2",
+    "@img/sharp-libvips-win32-ia32": "1.0.4",
-    "@img/sharp-libvips-win32-x64": "1.0.2",
+    "@img/sharp-libvips-win32-x64": "1.0.4",
     "@types/node": "*",
     "async": "^3.2.5",
     "cc": "^3.0.1",
-    "emnapi": "^1.1.1",
+    "emnapi": "^1.2.0",
     "exif-reader": "^2.0.1",
     "extract-zip": "^2.0.1",
     "icc": "^3.0.0",
-    "jsdoc-to-markdown": "^8.0.1",
+    "jsdoc-to-markdown": "^8.0.3",
     "license-checker": "^25.0.1",
-    "mocha": "^10.4.0",
+    "mocha": "^10.7.3",
-    "node-addon-api": "^8.0.0",
+    "node-addon-api": "^8.1.0",
-    "nyc": "^15.1.0",
+    "nyc": "^17.0.0",
     "prebuild": "^13.0.1",
     "semistandard": "^17.0.0",
     "tar-fs": "^3.0.6",
-    "tsd": "^0.31.0"
+    "tsd": "^0.31.1"
   },
   "license": "Apache-2.0",
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0",
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
-    "libvips": ">=8.15.2"
+  },
+  "config": {
+    "libvips": ">=8.15.3"
   },
   "funding": {
     "url": "https://opencollective.com/libvips"

src/binding.gyp

@@ -192,7 +192,7 @@
                 '-Oz',
                 '-sALLOW_MEMORY_GROWTH',
                 '-sENVIRONMENT=node',
-                '-sEXPORTED_FUNCTIONS=["_vips_shutdown", "_uv_library_shutdown"]',
+                '-sEXPORTED_FUNCTIONS=["emnapiInit", "_vips_shutdown", "_uv_library_shutdown"]',
                 '-sNODERAWFS',
                 '-sTEXTDECODER=0',
                 '-sWASM_ASYNC_COMPILATION=0',

src/common.h

@@ -16,8 +16,8 @@
 
 #if (VIPS_MAJOR_VERSION < 8) || \
   (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION < 15) || \
-  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 15 && VIPS_MICRO_VERSION < 2)
+  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 15 && VIPS_MICRO_VERSION < 3)
-#error "libvips version 8.15.2+ is required - please see https://sharp.pixelplumbing.com/install"
+#error "libvips version 8.15.3+ is required - please see https://sharp.pixelplumbing.com/install"
 #endif
 
 #if ((!defined(__clang__)) && defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)))

src/emscripten/common.gypi

@@ -9,8 +9,7 @@
     'default_configuration': 'Release',
     'type': 'executable',
     'cflags': [
-      '-pthread',
+      '-pthread'
-      '-sDEFAULT_TO_CXX=0'
     ],
     'cflags_cc': [
       '-pthread'
@@ -19,6 +18,7 @@
       '--js-library=<!(node -p "require(\'emnapi\').js_library")',
       '-sAUTO_JS_LIBRARIES=0',
       '-sAUTO_NATIVE_LIBRARIES=0',
+      '-sDEFAULT_TO_CXX=0',
       '-sNODEJS_CATCH_EXIT=0',
       '-sNODEJS_CATCH_REJECTION=0'
     ],
@@ -28,7 +28,7 @@
       'EMNAPI_WORKER_POOL_SIZE=1'
     ],
     'include_dirs': [
-      '<!(node -p "require(\'emnapi\').include")'
+      '<!(node -p "require(\'emnapi\').include_dir")'
     ],
     'sources': [
       '<!@(node -p "require(\'emnapi\').sources.map(x => JSON.stringify(path.relative(process.cwd(), x))).join(\' \')")'

src/metadata.cc

@@ -10,6 +10,8 @@
 #include "common.h"
 #include "metadata.h"
 
+static void* readPNGComment(VipsImage *image, const char *field, GValue *value, void *p);
+
 class MetadataWorker : public Napi::AsyncWorker {
  public:
   MetadataWorker(Napi::Function callback, MetadataBaton *baton, Napi::Function debuglog) :
@@ -131,6 +133,8 @@ class MetadataWorker : public Napi::AsyncWorker {
         memcpy(baton->tifftagPhotoshop, tifftagPhotoshop, tifftagPhotoshopLength);
         baton->tifftagPhotoshopLength = tifftagPhotoshopLength;
       }
+      // PNG comments
+      vips_image_map(image.get_image(), readPNGComment, &baton->comments);
     }
 
     // Clean up
@@ -246,6 +250,17 @@ class MetadataWorker : public Napi::AsyncWorker {
           Napi::Buffer<char>::NewOrCopy(env, baton->tifftagPhotoshop,
             baton->tifftagPhotoshopLength, sharp::FreeCallback));
       }
+      if (baton->comments.size() > 0) {
+        int i = 0;
+        Napi::Array comments = Napi::Array::New(env, baton->comments.size());
+        for (auto &c : baton->comments) {
+          Napi::Object comment = Napi::Object::New(env);
+          comment.Set("keyword", c.first);
+          comment.Set("text", c.second);
+          comments.Set(i++, comment);
+        }
+        info.Set("comments", comments);
+      }
       Callback().Call(Receiver().Value(), { env.Null(), info });
     } else {
       Callback().Call(Receiver().Value(), { Napi::Error::New(env, sharp::TrimEnd(baton->err)).Value() });
@@ -285,3 +300,21 @@ Napi::Value metadata(const Napi::CallbackInfo& info) {
 
   return info.Env().Undefined();
 }
+
+const char *PNG_COMMENT_START = "png-comment-";
+const int PNG_COMMENT_START_LEN = strlen(PNG_COMMENT_START);
+
+static void* readPNGComment(VipsImage *image, const char *field, GValue *value, void *p) {
+  MetadataComments *comments = static_cast<MetadataComments *>(p);
+
+  if (vips_isprefix(PNG_COMMENT_START, field)) {
+    const char *keyword = strchr(field + PNG_COMMENT_START_LEN, '-');
+    const char *str;
+    if (keyword != NULL && !vips_image_get_string(image, field, &str)) {
+      keyword++;  // Skip the hyphen
+      comments->push_back(std::make_pair(keyword, str));
+    }
+  }
+
+  return NULL;
+}

src/metadata.h

@@ -9,6 +9,8 @@
 
 #include "./common.h"
 
+typedef std::vector<std::pair<std::string, std::string>> MetadataComments;
+
 struct MetadataBaton {
   // Input
   sharp::InputDescriptor *input;
@@ -47,6 +49,7 @@ struct MetadataBaton {
   size_t xmpLength;
   char *tifftagPhotoshop;
   size_t tifftagPhotoshopLength;
+  MetadataComments comments;
   std::string err;
 
   MetadataBaton():

src/operations.cc

@@ -144,7 +144,7 @@ namespace sharp {
   /*
    * Gaussian blur. Use sigma of -1.0 for fast blur.
    */
-  VImage Blur(VImage image, double const sigma) {
+  VImage Blur(VImage image, double const sigma, VipsPrecision precision, double const minAmpl) {
     if (sigma == -1.0) {
       // Fast, mild blur - averages neighbouring pixels
       VImage blur = VImage::new_matrixv(3, 3,
@@ -155,7 +155,9 @@ namespace sharp {
       return image.conv(blur);
     } else {
       // Slower, accurate Gaussian blur
-      return StaySequential(image).gaussblur(sigma);
+      return StaySequential(image).gaussblur(sigma, VImage::option()
+        ->set("precision", precision)
+        ->set("min_ampl", minAmpl));
     }
   }
 
@@ -164,10 +166,10 @@ namespace sharp {
    */
   VImage Convolve(VImage image, int const width, int const height,
     double const scale, double const offset,
-    std::unique_ptr<double[]> const &kernel_v
+    std::vector<double> const &kernel_v
   ) {
     VImage kernel = VImage::new_from_memory(
-      kernel_v.get(),
+      static_cast<void*>(const_cast<double*>(kernel_v.data())),
       width * height * sizeof(double),
       width,
       height,
@@ -183,19 +185,21 @@ namespace sharp {
    * Recomb with a Matrix of the given bands/channel size.
    * Eg. RGB will be a 3x3 matrix.
    */
-  VImage Recomb(VImage image, std::unique_ptr<double[]> const &matrix) {
+  VImage Recomb(VImage image, std::vector<double> const& matrix) {
-    double *m = matrix.get();
+    double* m = const_cast<double*>(matrix.data());
     image = image.colourspace(VIPS_INTERPRETATION_sRGB);
-    return image
+    if (matrix.size() == 9) {
-      .recomb(image.bands() == 3
+      return image
-        ? VImage::new_from_memory(
+        .recomb(image.bands() == 3
-          m, 9 * sizeof(double), 3, 3, 1, VIPS_FORMAT_DOUBLE
+          ? VImage::new_matrix(3, 3, m, 9)
-        )
+          : VImage::new_matrixv(4, 4,
-        : VImage::new_matrixv(4, 4,
+            m[0], m[1], m[2], 0.0,
-          m[0], m[1], m[2], 0.0,
+            m[3], m[4], m[5], 0.0,
-          m[3], m[4], m[5], 0.0,
+            m[6], m[7], m[8], 0.0,
-          m[6], m[7], m[8], 0.0,
+            0.0, 0.0, 0.0, 1.0));
-          0.0, 0.0, 0.0, 1.0));
+    } else {
+      return image.recomb(VImage::new_matrix(4, 4, m, 16));
+    }
   }
 
   VImage Modulate(VImage image, double const brightness, double const saturation,

src/operations.h

@@ -47,13 +47,13 @@ namespace sharp {
   /*
    * Gaussian blur. Use sigma of -1.0 for fast blur.
    */
-  VImage Blur(VImage image, double const sigma);
+  VImage Blur(VImage image, double const sigma, VipsPrecision precision, double const minAmpl);
 
   /*
    * Convolution with a kernel.
    */
   VImage Convolve(VImage image, int const width, int const height,
-    double const scale, double const offset, std::unique_ptr<double[]> const &kernel_v);
+    double const scale, double const offset, std::vector<double> const &kernel_v);
 
   /*
    * Sharpen flat and jagged areas. Use sigma of -1.0 for fast sharpen.
@@ -95,7 +95,7 @@ namespace sharp {
    * Recomb with a Matrix of the given bands/channel size.
    * Eg. RGB will be a 3x3 matrix.
    */
-  VImage Recomb(VImage image, std::unique_ptr<double[]> const &matrix);
+  VImage Recomb(VImage image, std::vector<double> const &matrix);
 
   /*
    * Modulate brightness, saturation, hue and lightness

src/pipeline.cc

@@ -325,6 +325,7 @@ class PipelineWorker : public Napi::AsyncWorker {
       if ((baton->keepMetadata & VIPS_FOREIGN_KEEP_ICC) && baton->withIccProfile.empty()) {
         // Cache input profile for use with output
         inputProfile = sharp::GetProfile(image);
+        baton->input->ignoreIcc = true;
       }
       char const *processingProfile = image.interpretation() == VIPS_INTERPRETATION_RGB16 ? "p3" : "srgb";
       if (
@@ -592,7 +593,7 @@ class PipelineWorker : public Napi::AsyncWorker {
 
       // Blur
       if (shouldBlur) {
-        image = sharp::Blur(image, baton->blurSigma);
+        image = sharp::Blur(image, baton->blurSigma, baton->precision, baton->minAmpl);
       }
 
       // Unflatten the image
@@ -609,7 +610,7 @@ class PipelineWorker : public Napi::AsyncWorker {
       }
 
       // Recomb
-      if (baton->recombMatrix != NULL) {
+      if (!baton->recombMatrix.empty()) {
         image = sharp::Recomb(image, baton->recombMatrix);
       }
 
@@ -849,6 +850,11 @@ class PipelineWorker : public Napi::AsyncWorker {
       image = sharp::SetAnimationProperties(
         image, nPages, targetPageHeight, baton->delay, baton->loop);
 
+      if (image.get_typeof(VIPS_META_PAGE_HEIGHT) == G_TYPE_INT) {
+        baton->pageHeightOut = image.get_int(VIPS_META_PAGE_HEIGHT);
+        baton->pagesOut = image.get_int(VIPS_META_N_PAGES);
+      }
+
       // Output
       sharp::SetTimeout(image, baton->timeoutSeconds);
       if (baton->fileOut.empty()) {
@@ -1284,6 +1290,10 @@ class PipelineWorker : public Napi::AsyncWorker {
       if (baton->input->textAutofitDpi) {
         info.Set("textAutofitDpi", static_cast<uint32_t>(baton->input->textAutofitDpi));
       }
+      if (baton->pageHeightOut) {
+        info.Set("pageHeight", static_cast<int32_t>(baton->pageHeightOut));
+        info.Set("pages", static_cast<int32_t>(baton->pagesOut));
+      }
 
       if (baton->bufferOutLength > 0) {
         // Add buffer size to info
@@ -1532,6 +1542,8 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   baton->negate = sharp::AttrAsBool(options, "negate");
   baton->negateAlpha = sharp::AttrAsBool(options, "negateAlpha");
   baton->blurSigma = sharp::AttrAsDouble(options, "blurSigma");
+  baton->precision = sharp::AttrAsEnum<VipsPrecision>(options, "precision", VIPS_TYPE_PRECISION);
+  baton->minAmpl = sharp::AttrAsDouble(options, "minAmpl");
   baton->brightness = sharp::AttrAsDouble(options, "brightness");
   baton->saturation = sharp::AttrAsDouble(options, "saturation");
   baton->hue = sharp::AttrAsInt32(options, "hue");
@@ -1597,17 +1609,18 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
     baton->convKernelScale = sharp::AttrAsDouble(kernel, "scale");
     baton->convKernelOffset = sharp::AttrAsDouble(kernel, "offset");
     size_t const kernelSize = static_cast<size_t>(baton->convKernelWidth * baton->convKernelHeight);
-    baton->convKernel = std::unique_ptr<double[]>(new double[kernelSize]);
+    baton->convKernel.resize(kernelSize);
     Napi::Array kdata = kernel.Get("kernel").As<Napi::Array>();
     for (unsigned int i = 0; i < kernelSize; i++) {
       baton->convKernel[i] = sharp::AttrAsDouble(kdata, i);
     }
   }
   if (options.Has("recombMatrix")) {
-    baton->recombMatrix = std::unique_ptr<double[]>(new double[9]);
     Napi::Array recombMatrix = options.Get("recombMatrix").As<Napi::Array>();
-    for (unsigned int i = 0; i < 9; i++) {
+    unsigned int matrixElements = recombMatrix.Length();
-       baton->recombMatrix[i] = sharp::AttrAsDouble(recombMatrix, i);
+    baton->recombMatrix.resize(matrixElements);
+    for (unsigned int i = 0; i < matrixElements; i++) {
+      baton->recombMatrix[i] = sharp::AttrAsDouble(recombMatrix, i);
     }
   }
   baton->colourspacePipeline = sharp::AttrAsEnum<VipsInterpretation>(

src/pipeline.h

@@ -43,6 +43,8 @@ struct PipelineBaton {
   std::string fileOut;
   void *bufferOut;
   size_t bufferOutLength;
+  int pageHeightOut;
+  int pagesOut;
   std::vector<Composite *> composite;
   std::vector<sharp::InputDescriptor *> joinChannelIn;
   int topOffsetPre;
@@ -76,6 +78,8 @@ struct PipelineBaton {
   bool negate;
   bool negateAlpha;
   double blurSigma;
+  VipsPrecision precision;
+  double minAmpl;
   double brightness;
   double saturation;
   int hue;
@@ -195,7 +199,7 @@ struct PipelineBaton {
   std::unordered_map<std::string, std::string> withExif;
   bool withExifMerge;
   int timeoutSeconds;
-  std::unique_ptr<double[]> convKernel;
+  std::vector<double> convKernel;
   int convKernelWidth;
   int convKernelHeight;
   double convKernelScale;
@@ -221,11 +225,13 @@ struct PipelineBaton {
   VipsForeignDzDepth tileDepth;
   std::string tileId;
   std::string tileBasename;
-  std::unique_ptr<double[]> recombMatrix;
+  std::vector<double> recombMatrix;
 
   PipelineBaton():
     input(nullptr),
     bufferOutLength(0),
+    pageHeightOut(0),
+    pagesOut(0),
     topOffsetPre(-1),
     topOffsetPost(-1),
     channels(0),

test/fixtures/index.js

@@ -14,29 +14,26 @@ const getPath = function (filename) {
 
 // Generates a 64-bit-as-binary-string image fingerprint
 // Based on the dHash gradient method - see http://www.hackerfactor.com/blog/index.php?/archives/529-Kind-of-Like-That.html
-const fingerprint = function (image, callback) {
+async function fingerprint (image) {
-  sharp(image)
+  return sharp(image)
     .flatten('gray')
     .greyscale()
     .normalise()
     .resize(9, 8, { fit: sharp.fit.fill })
     .raw()
-    .toBuffer(function (err, data) {
+    .toBuffer()
-      if (err) {
+    .then(function (data) {
-        callback(err);
+      let fingerprint = '';
-      } else {
+      for (let col = 0; col < 8; col++) {
-        let fingerprint = '';
+        for (let row = 0; row < 8; row++) {
-        for (let col = 0; col < 8; col++) {
+          const left = data[(row * 8) + col];
-          for (let row = 0; row < 8; row++) {
+          const right = data[(row * 8) + col + 1];
-            const left = data[(row * 8) + col];
+          fingerprint = fingerprint + (left < right ? '1' : '0');
-            const right = data[(row * 8) + col + 1];
-            fingerprint = fingerprint + (left < right ? '1' : '0');
-          }
         }
-        callback(null, fingerprint);
       }
+      return fingerprint;
     });
-};
+}
 
 module.exports = {
 
@@ -102,6 +99,7 @@ module.exports = {
   inputPngTrimSpecificColour16bit: getPath('Flag_of_the_Netherlands-16bit.png'), // convert Flag_of_the_Netherlands.png -depth 16 Flag_of_the_Netherlands-16bit.png
   inputPngTrimSpecificColourIncludeAlpha: getPath('Flag_of_the_Netherlands-alpha.png'), // convert Flag_of_the_Netherlands.png -alpha set -background none -channel A -evaluate multiply 0.5 +channel Flag_of_the_Netherlands-alpha.png
   inputPngUint32Limit: getPath('65536-uint32-limit.png'), // https://alexandre.alapetite.fr/doc-alex/large-image/
+  inputPngWithProPhotoProfile: getPath('prophoto.png'),
 
   inputWebP: getPath('4.webp'), // http://www.gstatic.com/webp/gallery/4.webp
   inputWebPWithTransparency: getPath('5_webp_a.webp'), // http://www.gstatic.com/webp/gallery3/5_webp_a.webp
@@ -139,6 +137,7 @@ module.exports = {
 
   testPattern: getPath('test-pattern.png'),
 
+  inputPngWithTransparent: getPath('d.png'),
   // Path for tests requiring human inspection
   path: getPath,
 
@@ -150,46 +149,44 @@ module.exports = {
   // Verify similarity of expected vs actual images via fingerprint
   // Specify distance threshold using `options={threshold: 42}`, default
   // `threshold` is 5;
-  assertSimilar: function (expectedImage, actualImage, options, callback) {
+  assertSimilar: async function (expectedImage, actualImage, options, callback) {
     if (typeof options === 'function') {
       callback = options;
       options = {};
     }
-
+    if (typeof options === 'undefined' || options === null) {
-    if (typeof options === 'undefined' && options === null) {
       options = {};
     }
-
     if (options.threshold === null || typeof options.threshold === 'undefined') {
       options.threshold = 5; // ~7% threshold
     }
-
     if (typeof options.threshold !== 'number') {
       throw new TypeError('`options.threshold` must be a number');
     }
 
-    if (typeof callback !== 'function') {
+    try {
-      throw new TypeError('`callback` must be a function');
+      const [expectedFingerprint, actualFingerprint] = await Promise.all([
+        fingerprint(expectedImage),
+        fingerprint(actualImage)
+      ]);
+      let distance = 0;
+      for (let i = 0; i < 64; i++) {
+        if (expectedFingerprint[i] !== actualFingerprint[i]) {
+          distance++;
+        }
+      }
+      if (distance > options.threshold) {
+        throw new Error(`Expected maximum similarity distance: ${options.threshold}. Actual: ${distance}.`);
+      }
+    } catch (err) {
+      if (callback) {
+        return callback(err);
+      }
+      throw err;
+    }
+    if (callback) {
+      callback();
     }
-
-    fingerprint(expectedImage, function (err, expectedFingerprint) {
-      if (err) return callback(err);
-      fingerprint(actualImage, function (err, actualFingerprint) {
-        if (err) return callback(err);
-        let distance = 0;
-        for (let i = 0; i < 64; i++) {
-          if (expectedFingerprint[i] !== actualFingerprint[i]) {
-            distance++;
-          }
-        }
-
-        if (distance > options.threshold) {
-          return callback(new Error('Expected maximum similarity distance: ' + options.threshold + '. Actual: ' + distance + '.'));
-        }
-
-        callback();
-      });
-    });
   },
 
   assertMaxColourDistance: function (actualImagePath, expectedImagePath, acceptedDistance) {

test/types/sharp.test-d.ts

@@ -59,6 +59,12 @@ sharp('input.jpg')
 
 sharp('input.jpg').resize({ width: 300 }).blur(false).blur(true).toFile('output.jpg');
 
+sharp().blur();
+sharp().blur(1);
+sharp().blur({ sigma: 1 });
+sharp().blur({ sigma: 1, precision: 'approximate' });
+sharp().blur({ sigma: 1, minAmplitude: 0.8 });
+
 sharp({
   create: {
     width: 300,
@@ -295,6 +301,13 @@ sharp('input.gif')
     [0.2392, 0.4696, 0.0912],
   ])
 
+  .recomb([
+    [1,0,0,0],
+    [0,1,0,0],
+    [0,0,1,0],
+    [0,0,0,1],
+  ])
+
   .modulate({ brightness: 2 })
   .modulate({ hue: 180 })
   .modulate({ lightness: 10 })

test/unit/blur.js

@@ -35,6 +35,19 @@ describe('Blur', function () {
       });
   });
 
+  it('specific options.sigma 10', function (done) {
+    sharp(fixtures.inputJpg)
+      .resize(320, 240)
+      .blur({ sigma: 10 })
+      .toBuffer(function (err, data, info) {
+        if (err) throw err;
+        assert.strictEqual('jpeg', info.format);
+        assert.strictEqual(320, info.width);
+        assert.strictEqual(240, info.height);
+        fixtures.assertSimilar(fixtures.expected('blur-10.jpg'), data, done);
+      });
+  });
+
   it('specific radius 0.3', function (done) {
     sharp(fixtures.inputJpg)
       .resize(320, 240)
@@ -91,4 +104,54 @@ describe('Blur', function () {
           });
       });
   });
+
+  it('invalid precision', function () {
+    assert.throws(function () {
+      sharp(fixtures.inputJpg).blur({ sigma: 1, precision: 'invalid' });
+    }, /Expected one of: integer, float, approximate for precision but received invalid of type string/);
+  });
+
+  it('invalid minAmplitude', function () {
+    assert.throws(function () {
+      sharp(fixtures.inputJpg).blur({ sigma: 1, minAmplitude: 0 });
+    }, /Expected number between 0.001 and 1 for minAmplitude but received 0 of type number/);
+
+    assert.throws(function () {
+      sharp(fixtures.inputJpg).blur({ sigma: 1, minAmplitude: 1.01 });
+    }, /Expected number between 0.001 and 1 for minAmplitude but received 1.01 of type number/);
+  });
+
+  it('specific radius 10 and precision approximate', async () => {
+    const approximate = await sharp(fixtures.inputJpg)
+      .resize(320, 240)
+      .blur({ sigma: 10, precision: 'approximate' })
+      .toBuffer();
+    const integer = await sharp(fixtures.inputJpg)
+      .resize(320, 240)
+      .blur(10)
+      .toBuffer();
+
+    assert.notDeepEqual(approximate, integer);
+    await fixtures.assertSimilar(fixtures.expected('blur-10.jpg'), approximate);
+  });
+
+  it('specific radius 10 and minAmplitude 0.01', async () => {
+    const minAmplitudeLow = await sharp(fixtures.inputJpg)
+      .resize(320, 240)
+      .blur({ sigma: 10, minAmplitude: 0.01 })
+      .toBuffer();
+    const minAmplitudeDefault = await sharp(fixtures.inputJpg)
+      .resize(320, 240)
+      .blur(10)
+      .toBuffer();
+
+    assert.notDeepEqual(minAmplitudeLow, minAmplitudeDefault);
+    await fixtures.assertSimilar(fixtures.expected('blur-10.jpg'), minAmplitudeLow);
+  });
+
+  it('options.sigma is required if options object is passed', function () {
+    assert.throws(function () {
+      sharp(fixtures.inputJpg).blur({ precision: 'invalid' });
+    }, /Expected number between 0.3 and 1000 for options.sigma but received undefined of type undefined/);
+  });
 });

test/unit/gif.js

@@ -39,7 +39,7 @@ describe('GIF input', () => {
       })
   );
 
-  it('Animated GIF first page to PNG', () =>
+  it('Animated GIF first page to non-animated GIF', () =>
     sharp(fixtures.inputGifAnimated)
       .toBuffer({ resolveWithObject: true })
       .then(({ data, info }) => {
@@ -49,10 +49,12 @@ describe('GIF input', () => {
         assert.strictEqual(80, info.width);
         assert.strictEqual(80, info.height);
         assert.strictEqual(4, info.channels);
+        assert.strictEqual(undefined, info.pages);
+        assert.strictEqual(undefined, info.pageHeight);
       })
   );
 
-  it('Animated GIF all pages to PNG "toilet roll"', () =>
+  it('Animated GIF round trip', () =>
     sharp(fixtures.inputGifAnimated, { pages: -1 })
       .toBuffer({ resolveWithObject: true })
       .then(({ data, info }) => {
@@ -62,6 +64,8 @@ describe('GIF input', () => {
         assert.strictEqual(80, info.width);
         assert.strictEqual(2400, info.height);
         assert.strictEqual(4, info.channels);
+        assert.strictEqual(30, info.pages);
+        assert.strictEqual(80, info.pageHeight);
       })
   );
 

test/unit/libvips.js

@@ -72,6 +72,15 @@ describe('libvips binaries', function () {
       const useGlobalLibvips = libvips.useGlobalLibvips();
       assert.strictEqual(true, useGlobalLibvips);
 
+      let logged = false;
+      const logger = function (message) {
+        assert.strictEqual(message, 'Detected SHARP_FORCE_GLOBAL_LIBVIPS, skipping search for globally-installed libvips');
+        logged = true;
+      };
+      const useGlobalLibvipsWithLogger = libvips.useGlobalLibvips(logger);
+      assert.strictEqual(true, useGlobalLibvipsWithLogger);
+      assert.strictEqual(true, logged);
+
       delete process.env.SHARP_FORCE_GLOBAL_LIBVIPS;
     });
   });
@@ -170,7 +179,7 @@ describe('libvips binaries', function () {
       process.env.npm_config_arch = 's390x';
       process.env.npm_config_libc = '';
       const locatorHash = libvips.yarnLocator();
-      assert.strictEqual(locatorHash, '45978c229d');
+      assert.strictEqual(locatorHash, 'c4ea54fdc1');
       delete process.env.npm_config_platform;
       delete process.env.npm_config_arch;
       delete process.env.npm_config_libc;

test/unit/metadata.js

@@ -154,6 +154,31 @@ describe('Image metadata', function () {
     });
   });
 
+  it('PNG with comment', function (done) {
+    sharp(fixtures.inputPngTestJoinChannel).metadata(function (err, metadata) {
+      if (err) throw err;
+      assert.strictEqual('png', metadata.format);
+      assert.strictEqual('undefined', typeof metadata.size);
+      assert.strictEqual(320, metadata.width);
+      assert.strictEqual(240, metadata.height);
+      assert.strictEqual('b-w', metadata.space);
+      assert.strictEqual(1, metadata.channels);
+      assert.strictEqual('uchar', metadata.depth);
+      assert.strictEqual(72, metadata.density);
+      assert.strictEqual('undefined', typeof metadata.chromaSubsampling);
+      assert.strictEqual(false, metadata.isProgressive);
+      assert.strictEqual(false, metadata.hasProfile);
+      assert.strictEqual(false, metadata.hasAlpha);
+      assert.strictEqual('undefined', typeof metadata.orientation);
+      assert.strictEqual('undefined', typeof metadata.exif);
+      assert.strictEqual('undefined', typeof metadata.icc);
+      assert.strictEqual(1, metadata.comments.length);
+      assert.strictEqual('Comment', metadata.comments[0].keyword);
+      assert.strictEqual('Created with GIMP', metadata.comments[0].text);
+      done();
+    });
+  });
+
   it('Transparent PNG', function (done) {
     sharp(fixtures.inputPngWithTransparency).metadata(function (err, metadata) {
       if (err) throw err;
@@ -576,6 +601,17 @@ describe('Image metadata', function () {
     assert.strictEqual(description, 'Generic RGB Profile');
   });
 
+  it('keep existing ICC profile, avoid colour transform', async () => {
+    const [r, g, b] = await sharp(fixtures.inputPngWithProPhotoProfile)
+      .keepIccProfile()
+      .raw()
+      .toBuffer();
+
+    assert.strictEqual(r, 131);
+    assert.strictEqual(g, 141);
+    assert.strictEqual(b, 192);
+  });
+
   it('keep existing CMYK ICC profile', async () => {
     const data = await sharp(fixtures.inputJpgWithCmykProfile)
       .pipelineColourspace('cmyk')
@@ -616,13 +652,13 @@ describe('Image metadata', function () {
       .png()
       .withIccProfile(fixtures.path('invalid-illuminant.icc'));
 
-    let warningEmitted = '';
+    const warningsEmitted = [];
     img.on('warning', (warning) => {
-      warningEmitted = warning;
+      warningsEmitted.push(warning);
     });
 
     const data = await img.toBuffer();
-    assert.strictEqual('Invalid profile', warningEmitted);
+    assert.strict(warningsEmitted.includes('Invalid profile'));
 
     const metadata = await sharp(data).metadata();
     assert.strictEqual(3, metadata.channels);

test/unit/recomb.js

@@ -121,6 +121,29 @@ describe('Recomb', function () {
       });
   });
 
+  it('applies opacity 30% to the image', function (done) {
+    const output = fixtures.path('output.recomb-opacity.png');
+    sharp(fixtures.inputPngWithTransparent)
+      .recomb([
+        [1, 0, 0, 0],
+        [0, 1, 0, 0],
+        [0, 0, 1, 0],
+        [0, 0, 0, 0.3]
+      ])
+      .toFile(output, function (err, info) {
+        if (err) throw err;
+        assert.strictEqual('png', info.format);
+        assert.strictEqual(48, info.width);
+        assert.strictEqual(48, info.height);
+        fixtures.assertMaxColourDistance(
+          output,
+          fixtures.expected('d-opacity-30.png'),
+          17
+        );
+        done();
+      });
+  });
+
   describe('invalid matrix specification', function () {
     it('missing', function () {
       assert.throws(function () {

test/unit/rotate.js

@@ -417,6 +417,7 @@ describe('Rotation', function () {
   it('Flip and flop', function (done) {
     sharp(fixtures.inputJpg)
       .resize(320)
+      .flip()
       .flop()
       .toBuffer(function (err, data, info) {
         if (err) throw err;