Docs: highlight possibly breaking changes in next release

Except when targeting WebAssembly.

.github/workflows/ci.yml

@@ -14,39 +14,54 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: ubuntu-22.04
+          - os: ubuntu-24.04
             container: rockylinux:8
             nodejs_arch: x64
             nodejs_version: "^18.17.0"
             nodejs_version_major: 18
             platform: linux-x64
             prebuild: true
-          - os: ubuntu-22.04
+          - os: ubuntu-24.04
             container: rockylinux:8
             nodejs_arch: x64
             nodejs_version: "^20.3.0"
             nodejs_version_major: 20
             platform: linux-x64
-          - os: ubuntu-22.04
+          - os: ubuntu-24.04
+            container: rockylinux:8
+            nodejs_arch: x64
+            nodejs_version: "^22.9.0"
+            nodejs_version_major: 22
+            platform: linux-x64
+          - os: ubuntu-24.04
             container: node:18-alpine3.17
             nodejs_version_major: 18
             platform: linuxmusl-x64
             prebuild: true
-          - os: ubuntu-22.04
+          - os: ubuntu-24.04
             container: node:20-alpine3.18
             nodejs_version_major: 20
             platform: linuxmusl-x64
-          - os: macos-12
+          - os: ubuntu-24.04
+            container: node:22-alpine3.20
+            nodejs_version_major: 22
+            platform: linuxmusl-x64
+          - os: macos-13
             nodejs_arch: x64
             nodejs_version: "^18.17.0"
             nodejs_version_major: 18
             platform: darwin-x64
             prebuild: true
-          - os: macos-12
+          - os: macos-13
             nodejs_arch: x64
             nodejs_version: "^20.3.0"
             nodejs_version_major: 20
             platform: darwin-x64
+          - os: macos-13
+            nodejs_arch: x64
+            nodejs_version: "^22.9.0"
+            nodejs_version_major: 22
+            platform: darwin-x64
           - os: macos-14
             nodejs_arch: arm64
             nodejs_version: "^18.17.0"
@@ -58,6 +73,11 @@ jobs:
             nodejs_version: "^20.3.0"
             nodejs_version_major: 20
             platform: darwin-arm64
+          - os: macos-14
+            nodejs_arch: arm64
+            nodejs_version: "^22.9.0"
+            nodejs_version_major: 22
+            platform: darwin-arm64
           - os: windows-2019
             nodejs_arch: x86
             nodejs_version: "18.18.2" # pinned to avoid 18.19.0 and npm 10
@@ -69,6 +89,11 @@ jobs:
             nodejs_version: "^20.3.0"
             nodejs_version_major: 20
             platform: win32-ia32
+          - os: windows-2019
+            nodejs_arch: x86
+            nodejs_version: "^22.9.0"
+            nodejs_version_major: 22
+            platform: win32-ia32
           - os: windows-2019
             nodejs_arch: x64
             nodejs_version: "^18.17.0"
@@ -80,6 +105,11 @@ jobs:
             nodejs_version: "^20.3.0"
             nodejs_version_major: 20
             platform: win32-x64
+          - os: windows-2019
+            nodejs_arch: x64
+            nodejs_version: "^22.9.0"
+            nodejs_version_major: 22
+            platform: win32-x64
     steps:
       - name: Dependencies (Rocky Linux glibc)
         if: contains(matrix.container, 'rockylinux')
@@ -125,7 +155,7 @@ jobs:
     permissions:
       contents: write
     name: ${{ matrix.platform }} - Node.js ${{ matrix.nodejs_version_major }} - prebuild
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -144,6 +174,13 @@ jobs:
             nodejs_hostname: nodejs.org
             nodejs_version: "18.17.0"
             nodejs_version_major: 18
+          - platform: linux-ppc64
+            distro: bullseye
+            run_on_arch: ppc64le
+            nodejs_arch: ppc64le
+            nodejs_hostname: nodejs.org
+            nodejs_version: "18.17.0"
+            nodejs_version_major: 18
     steps:
       - uses: actions/checkout@v4
       - uses: uraimo/run-on-arch-action@v2
@@ -170,8 +207,8 @@ jobs:
     permissions:
       contents: write
     name: wasm32 - prebuild
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
-    container: "emscripten/emsdk:3.1.64"
+    container: "emscripten/emsdk:3.1.70"
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/npm.yml

@@ -16,57 +16,57 @@ jobs:
       matrix:
         include:
           - name: linux-x64-node-npm
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: node
             package-manager: npm
           - name: linux-x64-node-pnpm
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: node
             package-manager: pnpm
           - name: linux-x64-node-yarn
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: node
             package-manager: yarn
           - name: linux-x64-node-yarn-pnp
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: node
             package-manager: yarn-pnp
           - name: linux-x64-node-yarn-v1
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: node
             package-manager: yarn-v1
           - name: linux-x64-deno
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: deno
           - name: linux-x64-bun
-            runs-on: ubuntu-22.04
+            runs-on: ubuntu-24.04
             runtime: bun
 
           - name: darwin-x64-node-npm
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: node
             package-manager: npm
           - name: darwin-x64-node-pnpm
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: node
             package-manager: pnpm
           - name: darwin-x64-node-yarn
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: node
             package-manager: yarn
           - name: darwin-x64-node-yarn-pnp
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: node
             package-manager: yarn-pnp
           - name: darwin-x64-node-yarn-v1
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: node
             package-manager: yarn-v1
           - name: darwin-x64-deno
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: deno
           - name: darwin-x64-bun
-            runs-on: macos-12
+            runs-on: macos-13
             runtime: bun
 
           - name: win32-x64-node-npm

docs/api-colour.md

@@ -27,9 +27,9 @@ const output = await sharp(input)
 
 Convert to 8-bit greyscale; 256 shades of grey.
 This is a linear operation. If the input image is in a non-linear colour space such as sRGB, use `gamma()` with `greyscale()` for the best results.
-By default the output image will be web-friendly sRGB and contain three (identical) color channels.
+By default the output image will be web-friendly sRGB and contain three (identical) colour channels.
 This may be overridden by other sharp operations such as `toColourspace('b-w')`,
-which will produce an output image containing one color channel.
+which will produce an output image containing one colour channel.
 An alpha channel may be present, and will be unchanged by the operation.
 
 

docs/api-composite.md

@@ -6,8 +6,8 @@ Composite image(s) over the processed (resized, extracted etc.) image.
 The images to composite must be the same size or smaller than the processed image.
 If both `top` and `left` options are provided, they take precedence over `gravity`.
 
-Any resize, rotate or extract operations in the same processing pipeline
+Other operations in the same processing pipeline (e.g. resize, rotate, flip,
-will always be applied to the input image before composition.
+flop, extract) will always be applied to the input image before composition.
 
 The `blend` option can be one of `clear`, `source`, `over`, `in`, `out`, `atop`,
 `dest`, `dest-over`, `dest-in`, `dest-out`, `dest-atop`,

docs/api-constructor.md

@@ -40,6 +40,7 @@ where the overall height is the `pageHeight` multiplied by the number of `pages`
 | [options.page] | <code>number</code> | <code>0</code> | Page number to start extracting from for multi-page input (GIF, WebP, TIFF), zero based. |
 | [options.subifd] | <code>number</code> | <code>-1</code> | subIFD (Sub Image File Directory) to extract for OME-TIFF, defaults to main image. |
 | [options.level] | <code>number</code> | <code>0</code> | level to extract from a multi-level input (OpenSlide), zero based. |
+| [options.pdfBackground] | <code>string</code> \| <code>Object</code> |  | Background colour to use when PDF is partially transparent. Parsed by the [color](https://www.npmjs.org/package/color) module to extract values for red, green, blue and alpha. Requires the use of a globally-installed libvips compiled with support for PDFium, Poppler, ImageMagick or GraphicsMagick. |
 | [options.animated] | <code>boolean</code> | <code>false</code> | Set to `true` to read all frames/pages of an animated image (GIF, WebP, TIFF), equivalent of setting `pages` to `-1`. |
 | [options.raw] | <code>Object</code> |  | describes raw pixel input image data. See `raw()` for pixel ordering. |
 | [options.raw.width] | <code>number</code> |  | integral number of pixels wide. |

docs/api-input.md

@@ -22,15 +22,16 @@ A `Promise` is returned when `callback` is not provided.
 - `density`: Number of pixels per inch (DPI), if present
 - `chromaSubsampling`: String containing JPEG chroma subsampling, `4:2:0` or `4:4:4` for RGB, `4:2:0:4` or `4:4:4:4` for CMYK
 - `isProgressive`: Boolean indicating whether the image is interlaced using a progressive scan
+- `isPalette`: Boolean indicating whether the image is palette-based (GIF, PNG).
+- `bitsPerSample`: Number of bits per sample for each channel (GIF, PNG, HEIF).
 - `pages`: Number of pages/frames contained within the image, with support for TIFF, HEIF, PDF, animated GIF and animated WebP
 - `pageHeight`: Number of pixels high each page in a multi-page image will be.
-- `paletteBitDepth`: Bit depth of palette-based image (GIF, PNG).
 - `loop`: Number of times to loop an animated image, zero refers to a continuous loop.
 - `delay`: Delay in ms between each page in an animated image, provided as an array of integers.
 - `pagePrimary`: Number of the primary page in a HEIF image
 - `levels`: Details of each level in a multi-level image provided as an array of objects, requires libvips compiled with support for OpenSlide
 - `subifds`: Number of Sub Image File Directories in an OME-TIFF image
-- `background`: Default background colour, if present, for PNG (bKGD) and GIF images, either an RGB Object or a single greyscale value
+- `background`: Default background colour, if present, for PNG (bKGD) and GIF images
 - `compression`: The encoder used to compress an HEIF file, `av1` (AVIF) or `hevc` (HEIC)
 - `resolutionUnit`: The unit of resolution (density), either `inch` or `cm`, if present
 - `hasProfile`: Boolean indicating the presence of an embedded ICC profile

docs/api-operation.md

@@ -104,7 +104,7 @@ const output = await sharp(input).flop().toBuffer();
 Perform an affine transform on an image. This operation will always occur after resizing, extraction and rotation, if any.
 
 You must provide an array of length 4 or a 2x2 affine transformation matrix.
-By default, new pixels are filled with a black background. You can provide a background color with the `background` option.
+By default, new pixels are filled with a black background. You can provide a background colour with the `background` option.
 A particular interpolator may also be specified. Set the `interpolator` option to an attribute of the `sharp.interpolators` Object e.g. `sharp.interpolators.nohalo`.
 
 In the case of a 2x2 matrix, the transform is:

docs/api-output.md

@@ -439,6 +439,7 @@ Use these WebP options for output image.
 | [options.lossless] | <code>boolean</code> | <code>false</code> | use lossless compression mode |
 | [options.nearLossless] | <code>boolean</code> | <code>false</code> | use near_lossless compression mode |
 | [options.smartSubsample] | <code>boolean</code> | <code>false</code> | use high quality chroma subsampling |
+| [options.smartDeblock] | <code>boolean</code> | <code>false</code> | auto-adjust the deblocking filter, can improve low contrast edges (slow) |
 | [options.preset] | <code>string</code> | <code>&quot;&#x27;default&#x27;&quot;</code> | named preset for preprocessing/filtering, one of: default, photo, picture, drawing, icon, text |
 | [options.effort] | <code>number</code> | <code>4</code> | CPU effort, between 0 (fastest) and 6 (slowest) |
 | [options.loop] | <code>number</code> | <code>0</code> | number of animation iterations, use 0 for infinite animation |
@@ -694,8 +695,6 @@ Requires libvips compiled with support for libjxl.
 The prebuilt binaries do not include this - see
 [installing a custom libvips](https://sharp.pixelplumbing.com/install#custom-libvips).
 
-Image metadata (EXIF, XMP) is unsupported.
-
 
 **Throws**:
 
@@ -710,7 +709,9 @@ Image metadata (EXIF, XMP) is unsupported.
 | [options.quality] | <code>number</code> |  | calculate `distance` based on JPEG-like quality, between 1 and 100, overrides distance if specified |
 | [options.decodingTier] | <code>number</code> | <code>0</code> | target decode speed tier, between 0 (highest quality) and 4 (lowest quality) |
 | [options.lossless] | <code>boolean</code> | <code>false</code> | use lossless compression |
-| [options.effort] | <code>number</code> | <code>7</code> | CPU effort, between 3 (fastest) and 9 (slowest) |
+| [options.effort] | <code>number</code> | <code>7</code> | CPU effort, between 1 (fastest) and 9 (slowest) |
+| [options.loop] | <code>number</code> | <code>0</code> | number of animation iterations, use 0 for infinite animation |
+| [options.delay] | <code>number</code> \| <code>Array.&lt;number&gt;</code> |  | delay(s) between animation frames (in milliseconds) |
 
 
 
@@ -761,10 +762,6 @@ Use a `.zip` or `.szi` file extension with `toFile` to write to a compressed arc
 
 The container will be set to `zip` when the output is a Buffer or Stream, otherwise it will default to `fs`.
 
-Requires libvips compiled with support for libgsf.
-The prebuilt binaries do not include this - see
-[installing a custom libvips](https://sharp.pixelplumbing.com/install#custom-libvips).
-
 
 **Throws**:
 

docs/changelog.md

@@ -1,5 +1,33 @@
 # Changelog
 
+## v0.34 - *hat*
+
+Requires libvips v8.16.0
+
+### v0.34.0 - TBD
+
+* Breaking: Support `info.size` on wide-character systems via upgrade to C++17.
+  [#3943](https://github.com/lovell/sharp/issues/3943)
+
+* Breaking: Ensure `background` metadata can be parsed by `color` package.
+  [#4090](https://github.com/lovell/sharp/issues/4090)
+
+* Add `isPalette` and `bitsPerSample` to metadata, deprecate `paletteBitDepth`.
+
+* Expose WebP `smartDeblock` output option.
+
+* TypeScript: Ensure channel counts use the correct range.
+  [#4197](https://github.com/lovell/sharp/pull/4197)
+  [@DavidVaness](https://github.com/DavidVaness)
+
+* Improve support for ppc64le architecture.
+  [#4203](https://github.com/lovell/sharp/pull/4203)
+  [@sumitd2](https://github.com/sumitd2)
+
+* Add `pdfBackground` constructor property.
+  [#4207](https://github.com/lovell/sharp/pull/4207)
+  [@calebmer](https://github.com/calebmer)
+
 ## v0.33 - *gauge*
 
 Requires libvips v8.15.3

docs/humans.txt

@@ -302,3 +302,9 @@ GitHub: https://github.com/ton11797
 
 Name: Nathan Keynes
 GitHub: https://github.com/nkeynes
+
+Name: Sumit D
+GitHub: https://github.com/sumitd2
+
+Name: Caleb Meredith
+GitHub: https://github.com/calebmer

docs/install.md

@@ -36,10 +36,11 @@ deno run --allow-ffi ...
 
 Ready-compiled sharp and libvips binaries are provided for use on the most common platforms:
 
-* macOS x64 (>= 10.13)
+* macOS x64 (>= 10.15)
 * macOS ARM64
-* Linux ARM (glibc >= 2.28)
+* Linux ARM (glibc >= 2.31)
 * Linux ARM64 (glibc >= 2.26, musl >= 1.2.2)
+* Linux ppc64 (glibc >= 2.31)
 * Linux s390x (glibc >= 2.31)
 * Linux x64 (glibc >= 2.26, musl >= 1.2.2, CPU with SSE4.2)
 * Windows x64
@@ -110,7 +111,7 @@ environment variables.
 
 Building from source requires:
 
-* C++11 compiler
+* C++17 compiler
 * [node-addon-api](https://www.npmjs.com/package/node-addon-api) version 7+
 * [node-gyp](https://github.com/nodejs/node-gyp#installation) version 9+ and its dependencies
 
@@ -134,6 +135,8 @@ Use in web browsers is unsupported.
 
 Native text rendering is unsupported.
 
+[Tile-based output](/api-output#tile) is unsupported.
+
 ```sh
 npm install --cpu=wasm32 sharp
 ```
@@ -235,8 +238,10 @@ custom:
 
 ### electron
 
+#### electron-builder
+
 Ensure `sharp` is unpacked from the ASAR archive file using the
-[asarUnpack](https://www.electron.build/configuration/configuration.html)
+[asarUnpack](https://www.electron.build/app-builder-lib.interface.platformspecificbuildoptions#asarunpack)
 option.
 
 ```json
@@ -251,6 +256,22 @@ option.
 }
 ```
 
+#### electron-forge
+
+Ensure `sharp` is unpacked from the ASAR archive file using the
+[unpack](https://js.electronforge.io/interfaces/_electron_forge_maker_squirrel.InternalOptions.Options.html#asar)
+option.
+
+```json
+{
+  "packagerConfig": {
+    "asar": {
+      "unpack": "**/node_modules/{sharp,@img}/**/*"
+    }
+  }
+}
+```
+
 ### vite
 
 Ensure `sharp` is excluded from bundling via the

lib/channel.js

@@ -158,6 +158,7 @@ function bandbool (boolOp) {
 
 /**
  * Decorate the Sharp prototype with channel-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/colour.js

@@ -39,9 +39,9 @@ function tint (tint) {
 /**
  * Convert to 8-bit greyscale; 256 shades of grey.
  * This is a linear operation. If the input image is in a non-linear colour space such as sRGB, use `gamma()` with `greyscale()` for the best results.
- * By default the output image will be web-friendly sRGB and contain three (identical) color channels.
+ * By default the output image will be web-friendly sRGB and contain three (identical) colour channels.
  * This may be overridden by other sharp operations such as `toColourspace('b-w')`,
- * which will produce an output image containing one color channel.
+ * which will produce an output image containing one colour channel.
  * An alpha channel may be present, and will be unchanged by the operation.
  *
  * @example
@@ -159,6 +159,7 @@ function _setBackgroundColourOption (key, value) {
 
 /**
  * Decorate the Sharp prototype with colour-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/composite.js

@@ -46,8 +46,8 @@ const blend = {
  * The images to composite must be the same size or smaller than the processed image.
  * If both `top` and `left` options are provided, they take precedence over `gravity`.
  *
- * Any resize, rotate or extract operations in the same processing pipeline
+ * Other operations in the same processing pipeline (e.g. resize, rotate, flip,
- * will always be applied to the input image before composition.
+ * flop, extract) will always be applied to the input image before composition.
  *
  * The `blend` option can be one of `clear`, `source`, `over`, `in`, `out`, `atop`,
  * `dest`, `dest-over`, `dest-in`, `dest-out`, `dest-atop`,
@@ -202,6 +202,7 @@ function composite (images) {
 
 /**
  * Decorate the Sharp prototype with composite-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/constructor.js

@@ -139,6 +139,7 @@ const debuglog = util.debuglog('sharp');
  * @param {number} [options.page=0] - Page number to start extracting from for multi-page input (GIF, WebP, TIFF), zero based.
  * @param {number} [options.subifd=-1] - subIFD (Sub Image File Directory) to extract for OME-TIFF, defaults to main image.
  * @param {number} [options.level=0] - level to extract from a multi-level input (OpenSlide), zero based.
+ * @param {string|Object} [options.pdfBackground] - Background colour to use when PDF is partially transparent. Parsed by the [color](https://www.npmjs.org/package/color) module to extract values for red, green, blue and alpha. Requires the use of a globally-installed libvips compiled with support for PDFium, Poppler, ImageMagick or GraphicsMagick.
  * @param {boolean} [options.animated=false] - Set to `true` to read all frames/pages of an animated image (GIF, WebP, TIFF), equivalent of setting `pages` to `-1`.
  * @param {Object} [options.raw] - describes raw pixel input image data. See `raw()` for pixel ordering.
  * @param {number} [options.raw.width] - integral number of pixels wide.
@@ -299,6 +300,7 @@ const Sharp = function (input, options) {
     webpLossless: false,
     webpNearLossless: false,
     webpSmartSubsample: false,
+    webpSmartDeblock: false,
     webpPreset: 'default',
     webpEffort: 4,
     webpMinSize: false,
@@ -348,6 +350,7 @@ const Sharp = function (input, options) {
     timeoutSeconds: 0,
     linearA: [],
     linearB: [],
+    pdfBackground: [255, 255, 255, 255],
     // Function to notify of libvips warnings
     debuglog: warning => {
       this.emit('warning', warning);
@@ -447,6 +450,7 @@ Object.assign(Sharp.prototype, { clone });
 
 /**
  * Export constructor.
+ * @module Sharp
  * @private
  */
 module.exports = Sharp;

lib/index.d.ts

@@ -244,14 +244,14 @@ declare namespace sharp {
          * @param tint Parsed by the color module.
          * @returns A sharp instance that can be used to chain operations
          */
-        tint(tint: Color): Sharp;
+        tint(tint: Colour | Color): Sharp;
 
         /**
          * Convert to 8-bit greyscale; 256 shades of grey.
          * This is a linear operation.
          * If the input image is in a non-linear colour space such as sRGB, use gamma() with greyscale() for the best results.
-         * By default the output image will be web-friendly sRGB and contain three (identical) color channels.
+         * By default the output image will be web-friendly sRGB and contain three (identical) colour channels.
-         * This may be overridden by other sharp operations such as toColourspace('b-w'), which will produce an output image containing one color channel.
+         * This may be overridden by other sharp operations such as toColourspace('b-w'), which will produce an output image containing one colour channel.
          * An alpha channel may be present, and will be unchanged by the operation.
          * @param greyscale true to enable and false to disable (defaults to true)
          * @returns A sharp instance that can be used to chain operations
@@ -401,7 +401,7 @@ declare namespace sharp {
         /**
          * Perform an affine transform on an image. This operation will always occur after resizing, extraction and rotation, if any.
          * You must provide an array of length 4 or a 2x2 affine transformation matrix.
-         * By default, new pixels are filled with a black background. You can provide a background color with the `background` option.
+         * By default, new pixels are filled with a black background. You can provide a background colour with the `background` option.
          * A particular interpolator may also be specified. Set the `interpolator` option to an attribute of the `sharp.interpolators` Object e.g. `sharp.interpolators.nohalo`.
          *
          * In the case of a 2x2 matrix, the transform is:
@@ -799,8 +799,6 @@ declare namespace sharp {
          * Use tile-based deep zoom (image pyramid) output.
          * Set the format and options for tile images via the toFormat, jpeg, png or webp functions.
          * Use a .zip or .szi file extension with toFile to write to a compressed archive file format.
-         *
-         * Warning: multiple sharp instances concurrently producing tile output can expose a possible race condition in some versions of libgsf.
          * @param tile tile options
          * @throws {Error} Invalid options
          * @returns A sharp instance that can be used to chain operations
@@ -935,6 +933,8 @@ declare namespace sharp {
         subifd?: number | undefined;
         /** Level to extract from a multi-level input (OpenSlide), zero based. (optional, default 0) */
         level?: number | undefined;
+        /** Background colour to use when PDF is partially transparent. Requires the use of a globally-installed libvips compiled with support for PDFium, Poppler, ImageMagick or GraphicsMagick. */
+        pdfBackground?: Colour | Color | undefined;
         /** Set to `true` to read all frames/pages of an animated image (equivalent of setting `pages` to `-1`). (optional, default false) */
         animated?: boolean | undefined;
         /** Describes raw pixel input image data. See raw() for pixel ordering. */
@@ -969,7 +969,7 @@ declare namespace sharp {
     interface Raw {
         width: number;
         height: number;
-        channels: 1 | 2 | 3 | 4;
+        channels: Channels;
     }
 
     interface CreateRaw extends Raw {
@@ -977,15 +977,17 @@ declare namespace sharp {
         premultiplied?: boolean | undefined;
     }
 
+    type CreateChannels = 3 | 4;
+
     interface Create {
         /** Number of pixels wide. */
         width: number;
         /** Number of pixels high. */
         height: number;
-        /** Number of bands e.g. 3 for RGB, 4 for RGBA */
+        /** Number of bands, 3 for RGB, 4 for RGBA */
-        channels: Channels;
+        channels: CreateChannels;
         /** Parsed by the [color](https://www.npmjs.org/package/color) module to extract values for red, green, blue and alpha. */
-        background: Color;
+        background: Colour | Color;
         /** Describes a noise to be created. */
         noise?: Noise | undefined;
     }
@@ -1072,6 +1074,10 @@ declare namespace sharp {
         chromaSubsampling?: string | undefined;
         /** Boolean indicating whether the image is interlaced using a progressive scan */
         isProgressive?: boolean | undefined;
+        /** Boolean indicating whether the image is palette-based (GIF, PNG). */
+        isPalette?: boolean | undefined;
+        /** Number of bits per sample for each channel (GIF, PNG). */
+        bitsPerSample?: number | undefined;
         /** Number of pages/frames contained within the image, with support for TIFF, HEIF, PDF, animated GIF and animated WebP */
         pages?: number | undefined;
         /** Number of pixels high each page in a multi-page image will be. */
@@ -1098,8 +1104,8 @@ declare namespace sharp {
         tifftagPhotoshop?: Buffer | undefined;
         /** The encoder used to compress an HEIF file, `av1` (AVIF) or `hevc` (HEIC) */
         compression?: 'av1' | 'hevc';
-        /** Default background colour, if present, for PNG (bKGD) and GIF images, either an RGB Object or a single greyscale value */
+        /** Default background colour, if present, for PNG (bKGD) and GIF images */
-        background?: { r: number; g: number; b: number } | number;
+        background?: { r: number; g: number; b: number } | { gray: number };
         /** Details of each level in a multi-level image provided as an array of objects, requires libvips compiled with support for OpenSlide */
         levels?: LevelMetadata[] | undefined;
         /** Number of Sub Image File Directories in an OME-TIFF image */
@@ -1339,7 +1345,7 @@ declare namespace sharp {
 
     interface RotateOptions {
         /** parsed by the color module to extract values for red, green, blue and alpha. (optional, default "#000000") */
-        background?: Color | undefined;
+        background?: Colour | Color | undefined;
     }
 
     type Precision = 'integer' | 'float' | 'approximate';
@@ -1355,7 +1361,7 @@ declare namespace sharp {
 
     interface FlattenOptions {
         /** background colour, parsed by the color module, defaults to black. (optional, default {r:0,g:0,b:0}) */
-        background?: Color | undefined;
+        background?: Colour | Color | undefined;
     }
 
     interface NegateOptions {
@@ -1380,7 +1386,7 @@ declare namespace sharp {
         /** Position, gravity or strategy to use when fit is cover or contain. (optional, default 'centre') */
         position?: number | string | undefined;
         /** Background colour when using a fit of contain, parsed by the color module, defaults to black without transparency. (optional, default {r:0,g:0,b:0,alpha:1}) */
-        background?: Color | undefined;
+        background?: Colour | Color | undefined;
         /** The kernel to use for image reduction. (optional, default 'lanczos3') */
         kernel?: keyof KernelEnum | undefined;
         /** Do not enlarge if the width or height are already less than the specified dimensions, equivalent to GraphicsMagick's > geometry option. (optional, default false) */
@@ -1423,14 +1429,14 @@ declare namespace sharp {
         /** single pixel count to right edge (optional, default 0) */
         right?: number | undefined;
         /** background colour, parsed by the color module, defaults to black without transparency. (optional, default {r:0,g:0,b:0,alpha:1}) */
-        background?: Color | undefined;
+        background?: Colour | Color | undefined;
         /** how the extension is done, one of: "background", "copy", "repeat", "mirror" (optional, default `'background'`) */
         extendWith?: ExtendWith | undefined;
     }
 
     interface TrimOptions {
         /** Background colour, parsed by the color module, defaults to that of the top-left pixel. (optional) */
-        background?: Color | undefined;
+        background?: Colour | Color | undefined;
         /** Allowed difference from the above colour, a positive number. (optional, default 10) */
         threshold?: number | undefined;
         /** Does the input more closely resemble line art (e.g. vector) rather than being photographic? (optional, default false) */
@@ -1441,8 +1447,8 @@ declare namespace sharp {
         depth?: 'char' | 'uchar' | 'short' | 'ushort' | 'int' | 'uint' | 'float' | 'complex' | 'double' | 'dpcomplex';
     }
 
-    /** 3 for sRGB, 4 for CMYK */
+    /** 1 for grayscale, 2 for grayscale + alpha, 3 for sRGB, 4 for CMYK or RGBA */
-    type Channels = 3 | 4;
+    type Channels = 1 | 2 | 3 | 4;
 
     interface RGBA {
         r?: number | undefined;
@@ -1451,7 +1457,8 @@ declare namespace sharp {
         alpha?: number | undefined;
     }
 
-    type Color = string | RGBA;
+    type Colour = string | RGBA;
+    type Color = Colour;
 
     interface Kernel {
         /** width of the kernel in pixels. */
@@ -1576,7 +1583,7 @@ declare namespace sharp {
         size: number;
         width: number;
         height: number;
-        channels: 1 | 2 | 3 | 4;
+        channels: Channels;
         /** indicating if premultiplication was used */
         premultiplied: boolean;
         /** Only defined when using a crop strategy */

lib/input.js

@@ -8,7 +8,7 @@ const is = require('./is');
 const sharp = require('./sharp');
 
 /**
- * Justication alignment
+ * Justification alignment
  * @member
  * @private
  */
@@ -24,9 +24,9 @@ const align = {
  * @private
  */
 function _inputOptionsFromObject (obj) {
-  const { raw, density, limitInputPixels, ignoreIcc, unlimited, sequentialRead, failOn, failOnError, animated, page, pages, subifd } = obj;
+  const { raw, density, limitInputPixels, ignoreIcc, unlimited, sequentialRead, failOn, failOnError, animated, page, pages, subifd, pdfBackground } = obj;
-  return [raw, density, limitInputPixels, ignoreIcc, unlimited, sequentialRead, failOn, failOnError, animated, page, pages, subifd].some(is.defined)
+  return [raw, density, limitInputPixels, ignoreIcc, unlimited, sequentialRead, failOn, failOnError, animated, page, pages, subifd, pdfBackground].some(is.defined)
-    ? { raw, density, limitInputPixels, ignoreIcc, unlimited, sequentialRead, failOn, failOnError, animated, page, pages, subifd }
+    ? { raw, density, limitInputPixels, ignoreIcc, unlimited, sequentialRead, failOn, failOnError, animated, page, pages, subifd, pdfBackground }
     : undefined;
 }
 
@@ -222,6 +222,10 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
         throw is.invalidParameterError('subifd', 'integer between -1 and 100000', inputOptions.subifd);
       }
     }
+    // PDF background colour
+    if (is.defined(inputOptions.pdfBackground)) {
+      this._setBackgroundColourOption('pdfBackground', inputOptions.pdfBackground);
+    }
     // Create new image
     if (is.defined(inputOptions.create)) {
       if (
@@ -430,15 +434,16 @@ function _isStreamInput () {
  * - `density`: Number of pixels per inch (DPI), if present
  * - `chromaSubsampling`: String containing JPEG chroma subsampling, `4:2:0` or `4:4:4` for RGB, `4:2:0:4` or `4:4:4:4` for CMYK
  * - `isProgressive`: Boolean indicating whether the image is interlaced using a progressive scan
+ * - `isPalette`: Boolean indicating whether the image is palette-based (GIF, PNG).
+ * - `bitsPerSample`: Number of bits per sample for each channel (GIF, PNG, HEIF).
  * - `pages`: Number of pages/frames contained within the image, with support for TIFF, HEIF, PDF, animated GIF and animated WebP
  * - `pageHeight`: Number of pixels high each page in a multi-page image will be.
- * - `paletteBitDepth`: Bit depth of palette-based image (GIF, PNG).
  * - `loop`: Number of times to loop an animated image, zero refers to a continuous loop.
  * - `delay`: Delay in ms between each page in an animated image, provided as an array of integers.
  * - `pagePrimary`: Number of the primary page in a HEIF image
  * - `levels`: Details of each level in a multi-level image provided as an array of objects, requires libvips compiled with support for OpenSlide
  * - `subifds`: Number of Sub Image File Directories in an OME-TIFF image
- * - `background`: Default background colour, if present, for PNG (bKGD) and GIF images, either an RGB Object or a single greyscale value
+ * - `background`: Default background colour, if present, for PNG (bKGD) and GIF images
  * - `compression`: The encoder used to compress an HEIF file, `av1` (AVIF) or `hevc` (HEIC)
  * - `resolutionUnit`: The unit of resolution (density), either `inch` or `cm`, if present
  * - `hasProfile`: Boolean indicating the presence of an embedded ICC profile
@@ -639,6 +644,7 @@ function stats (callback) {
 
 /**
  * Decorate the Sharp prototype with input-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/operation.js

@@ -128,7 +128,7 @@ function flop (flop) {
  * Perform an affine transform on an image. This operation will always occur after resizing, extraction and rotation, if any.
  *
  * You must provide an array of length 4 or a 2x2 affine transformation matrix.
- * By default, new pixels are filled with a black background. You can provide a background color with the `background` option.
+ * By default, new pixels are filled with a black background. You can provide a background colour with the `background` option.
  * A particular interpolator may also be specified. Set the `interpolator` option to an attribute of the `sharp.interpolators` Object e.g. `sharp.interpolators.nohalo`.
  *
  * In the case of a 2x2 matrix, the transform is:
@@ -930,6 +930,7 @@ function modulate (options) {
 
 /**
  * Decorate the Sharp prototype with operation-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/output.js

@@ -623,6 +623,7 @@ function png (options) {
  * @param {boolean} [options.lossless=false] - use lossless compression mode
  * @param {boolean} [options.nearLossless=false] - use near_lossless compression mode
  * @param {boolean} [options.smartSubsample=false] - use high quality chroma subsampling
+ * @param {boolean} [options.smartDeblock=false] - auto-adjust the deblocking filter, can improve low contrast edges (slow)
  * @param {string} [options.preset='default'] - named preset for preprocessing/filtering, one of: default, photo, picture, drawing, icon, text
  * @param {number} [options.effort=4] - CPU effort, between 0 (fastest) and 6 (slowest)
  * @param {number} [options.loop=0] - number of animation iterations, use 0 for infinite animation
@@ -658,6 +659,9 @@ function webp (options) {
     if (is.defined(options.smartSubsample)) {
       this._setBooleanOption('webpSmartSubsample', options.smartSubsample);
     }
+    if (is.defined(options.smartDeblock)) {
+      this._setBooleanOption('webpSmartDeblock', options.smartDeblock);
+    }
     if (is.defined(options.preset)) {
       if (is.string(options.preset) && is.inArray(options.preset, ['default', 'photo', 'picture', 'drawing', 'icon', 'text'])) {
         this.options.webpPreset = options.preset;
@@ -1123,8 +1127,6 @@ function heif (options) {
  * The prebuilt binaries do not include this - see
  * {@link https://sharp.pixelplumbing.com/install#custom-libvips installing a custom libvips}.
  *
- * Image metadata (EXIF, XMP) is unsupported.
- *
  * @since 0.31.3
  *
  * @param {Object} [options] - output options
@@ -1132,7 +1134,9 @@ function heif (options) {
  * @param {number} [options.quality] - calculate `distance` based on JPEG-like quality, between 1 and 100, overrides distance if specified
  * @param {number} [options.decodingTier=0] - target decode speed tier, between 0 (highest quality) and 4 (lowest quality)
  * @param {boolean} [options.lossless=false] - use lossless compression
- * @param {number} [options.effort=7] - CPU effort, between 3 (fastest) and 9 (slowest)
+ * @param {number} [options.effort=7] - CPU effort, between 1 (fastest) and 9 (slowest)
+ * @param {number} [options.loop=0] - number of animation iterations, use 0 for infinite animation
+ * @param {number|number[]} [options.delay] - delay(s) between animation frames (in milliseconds)
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -1169,13 +1173,14 @@ function jxl (options) {
       }
     }
     if (is.defined(options.effort)) {
-      if (is.integer(options.effort) && is.inRange(options.effort, 3, 9)) {
+      if (is.integer(options.effort) && is.inRange(options.effort, 1, 9)) {
         this.options.jxlEffort = options.effort;
       } else {
-        throw is.invalidParameterError('effort', 'integer between 3 and 9', options.effort);
+        throw is.invalidParameterError('effort', 'integer between 1 and 9', options.effort);
       }
     }
   }
+  trySetAnimationOptions(options, this.options);
   return this._updateFormatOut('jxl', options);
 }
 
@@ -1227,10 +1232,6 @@ function raw (options) {
  *
  * The container will be set to `zip` when the output is a Buffer or Stream, otherwise it will default to `fs`.
  *
- * Requires libvips compiled with support for libgsf.
- * The prebuilt binaries do not include this - see
- * {@link https://sharp.pixelplumbing.com/install#custom-libvips installing a custom libvips}.
- *
  * @example
  *  sharp('input.tiff')
  *   .png()
@@ -1551,6 +1552,7 @@ function _pipeline (callback, stack) {
 
 /**
  * Decorate the Sharp prototype with output-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/resize.js

@@ -72,7 +72,9 @@ const kernel = {
   cubic: 'cubic',
   mitchell: 'mitchell',
   lanczos2: 'lanczos2',
-  lanczos3: 'lanczos3'
+  lanczos3: 'lanczos3',
+  mks2013: 'mks2013',
+  mks2021: 'mks2021'
 };
 
 /**
@@ -569,6 +571,7 @@ function trim (options) {
 
 /**
  * Decorate the Sharp prototype with resize-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

lib/utility.js

@@ -280,6 +280,7 @@ function unblock (options) {
 
 /**
  * Decorate the Sharp class with utility-related functions.
+ * @module Sharp
  * @private
  */
 module.exports = function (Sharp) {

npm/darwin-arm64/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-darwin-arm64": "1.0.4"
+    "@img/sharp-libvips-darwin-arm64": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/darwin-x64/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-darwin-x64": "1.0.4"
+    "@img/sharp-libvips-darwin-x64": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/linux-arm/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm": "1.0.5"
+    "@img/sharp-libvips-linux-arm": "1.1.0-rc3.1"
   },
   "files": [
     "lib"
@@ -32,7 +32,7 @@
     "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
   },
   "config": {
-    "glibc": ">=2.28"
+    "glibc": ">=2.31"
   },
   "os": [
     "linux"

npm/linux-arm64/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm64": "1.0.4"
+    "@img/sharp-libvips-linux-arm64": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/linux-ppc64/package.json

@@ -0,0 +1,46 @@
+{
+  "name": "@img/sharp-linux-ppc64",
+  "version": "0.33.5",
+  "description": "Prebuilt sharp for use with Linux (glibc) ppc64",
+  "author": "Lovell Fuller <npm@lovell.info>",
+  "homepage": "https://sharp.pixelplumbing.com",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/lovell/sharp.git",
+    "directory": "npm/linux-ppc64"
+  },
+  "license": "Apache-2.0",
+  "funding": {
+    "url": "https://opencollective.com/libvips"
+  },
+  "preferUnplugged": true,
+  "optionalDependencies": {
+    "@img/sharp-libvips-linux-ppc64": "1.1.0-rc3"
+  },
+  "files": [
+    "lib"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
+  "type": "commonjs",
+  "exports": {
+    "./sharp.node": "./lib/sharp-linux-ppc64.node",
+    "./package": "./package.json"
+  },
+  "engines": {
+    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+  },
+  "config": {
+    "glibc": ">=2.31"
+  },
+  "os": [
+    "linux"
+  ],
+  "libc": [
+    "glibc"
+  ],
+  "cpu": [
+    "ppc64"
+  ]
+}

npm/linux-s390x/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-s390x": "1.0.4"
+    "@img/sharp-libvips-linux-s390x": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/linux-x64/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-x64": "1.0.4"
+    "@img/sharp-libvips-linux-x64": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/linuxmusl-arm64/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-arm64": "1.0.4"
+    "@img/sharp-libvips-linuxmusl-arm64": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/linuxmusl-x64/package.json

@@ -15,7 +15,7 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-x64": "1.0.4"
+    "@img/sharp-libvips-linuxmusl-x64": "1.1.0-rc3"
   },
   "files": [
     "lib"

npm/package.json

@@ -7,6 +7,7 @@
     "darwin-x64",
     "linux-arm",
     "linux-arm64",
+    "linux-ppc64",
     "linux-s390x",
     "linux-x64",
     "linuxmusl-arm64",

npm/wasm32/package.json

@@ -31,7 +31,7 @@
     "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
   },
   "dependencies": {
-    "@emnapi/runtime": "^1.2.0"
+    "@emnapi/runtime": "^1.3.1"
   },
   "cpu": [
     "wasm32"

package.json

@@ -144,14 +144,15 @@
   "optionalDependencies": {
     "@img/sharp-darwin-arm64": "0.33.5",
     "@img/sharp-darwin-x64": "0.33.5",
-    "@img/sharp-libvips-darwin-arm64": "1.0.4",
+    "@img/sharp-libvips-darwin-arm64": "1.1.0-rc3",
-    "@img/sharp-libvips-darwin-x64": "1.0.4",
+    "@img/sharp-libvips-darwin-x64": "1.1.0-rc3",
-    "@img/sharp-libvips-linux-arm": "1.0.5",
+    "@img/sharp-libvips-linux-arm": "1.1.0-rc3.1",
-    "@img/sharp-libvips-linux-arm64": "1.0.4",
+    "@img/sharp-libvips-linux-arm64": "1.1.0-rc3",
-    "@img/sharp-libvips-linux-s390x": "1.0.4",
+    "@img/sharp-libvips-linux-ppc64": "1.1.0-rc3",
-    "@img/sharp-libvips-linux-x64": "1.0.4",
+    "@img/sharp-libvips-linux-s390x": "1.1.0-rc3",
-    "@img/sharp-libvips-linuxmusl-arm64": "1.0.4",
+    "@img/sharp-libvips-linux-x64": "1.1.0-rc3",
-    "@img/sharp-libvips-linuxmusl-x64": "1.0.4",
+    "@img/sharp-libvips-linuxmusl-arm64": "1.1.0-rc3",
+    "@img/sharp-libvips-linuxmusl-x64": "1.1.0-rc3",
     "@img/sharp-linux-arm": "0.33.5",
     "@img/sharp-linux-arm64": "0.33.5",
     "@img/sharp-linux-s390x": "0.33.5",
@@ -163,34 +164,33 @@
     "@img/sharp-win32-x64": "0.33.5"
   },
   "devDependencies": {
-    "@emnapi/runtime": "^1.2.0",
+    "@emnapi/runtime": "^1.3.1",
-    "@img/sharp-libvips-dev": "1.0.4",
+    "@img/sharp-libvips-dev": "1.1.0-rc3",
-    "@img/sharp-libvips-dev-wasm32": "1.0.5",
+    "@img/sharp-libvips-dev-wasm32": "1.1.0-rc3",
-    "@img/sharp-libvips-win32-ia32": "1.0.4",
+    "@img/sharp-libvips-win32-ia32": "1.1.0-rc3",
-    "@img/sharp-libvips-win32-x64": "1.0.4",
+    "@img/sharp-libvips-win32-x64": "1.1.0-rc3",
     "@types/node": "*",
-    "async": "^3.2.5",
     "cc": "^3.0.1",
-    "emnapi": "^1.2.0",
+    "emnapi": "^1.3.1",
     "exif-reader": "^2.0.1",
     "extract-zip": "^2.0.1",
     "icc": "^3.0.0",
-    "jsdoc-to-markdown": "^8.0.3",
+    "jsdoc-to-markdown": "^9.1.1",
     "license-checker": "^25.0.1",
-    "mocha": "^10.7.3",
+    "mocha": "^11.0.1",
-    "node-addon-api": "^8.1.0",
+    "node-addon-api": "^8.3.0",
-    "nyc": "^17.0.0",
+    "nyc": "^17.1.0",
     "prebuild": "^13.0.1",
     "semistandard": "^17.0.0",
     "tar-fs": "^3.0.6",
-    "tsd": "^0.31.1"
+    "tsd": "^0.31.2"
   },
   "license": "Apache-2.0",
   "engines": {
     "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
   },
   "config": {
-    "libvips": ">=8.15.3"
+    "libvips": ">=8.16.0"
   },
   "funding": {
     "url": "https://opencollective.com/libvips"

src/binding.gyp

@@ -12,13 +12,13 @@
     'sharp_libvips_lib_dir': '<!(node -p "require(\'../lib/libvips\').buildSharpLibvipsLibDir()")'
   },
   'targets': [{
-    'target_name': 'libvips-cpp',
+    'target_name': 'libvips-cpp-<(vips_version)',
     'conditions': [
       ['OS == "win"', {
         # Build libvips C++ binding for Windows due to MSVC std library ABI changes
         'type': 'shared_library',
         'defines': [
-          'VIPS_CPLUSPLUS_EXPORTS',
+          '_VIPS_PUBLIC=__declspec(dllexport)',
           '_ALLOW_KEYWORD_MACROS'
         ],
         'sources': [
@@ -45,6 +45,9 @@
           'Release': {
             'msvs_settings': {
               'VCCLCompilerTool': {
+                "AdditionalOptions": [
+                  "/std:c++17"
+                ],
                 'ExceptionHandling': 1,
                 'Optimization': 1,
                 'WholeProgramOptimization': 'true'
@@ -83,7 +86,7 @@
     ],
     'dependencies': [
       '<!(node -p "require(\'node-addon-api\').gyp")',
-      'libvips-cpp'
+      'libvips-cpp-<(vips_version)'
     ],
     'variables': {
       'conditions': [
@@ -149,7 +152,7 @@
           ['OS == "mac"', {
             'link_settings': {
               'libraries': [
-                'libvips-cpp.42.dylib'
+                'libvips-cpp.<(vips_version).dylib'
               ]
             },
             'xcode_settings': {
@@ -169,9 +172,10 @@
             ],
             'link_settings': {
               'libraries': [
-                '-l:libvips-cpp.so.42'
+                '-l:libvips-cpp.so.<(vips_version)'
               ],
               'ldflags': [
+                '-lstdc++fs',
                 '-Wl,-s',
                 '-Wl,--disable-new-dtags',
                 '-Wl,-z,nodelete',
@@ -207,14 +211,14 @@
       }]
     ],
     'cflags_cc': [
-      '-std=c++0x',
+      '-std=c++17',
       '-fexceptions',
       '-Wall',
       '-Os'
     ],
     'xcode_settings': {
-      'CLANG_CXX_LANGUAGE_STANDARD': 'c++11',
+      'CLANG_CXX_LANGUAGE_STANDARD': 'c++17',
-      'MACOSX_DEPLOYMENT_TARGET': '10.13',
+      'MACOSX_DEPLOYMENT_TARGET': '10.15',
       'GCC_ENABLE_CPP_EXCEPTIONS': 'YES',
       'GCC_ENABLE_CPP_RTTI': 'YES',
       'OTHER_CPLUSPLUSFLAGS': [
@@ -234,6 +238,9 @@
           ['OS == "win"', {
             'msvs_settings': {
               'VCCLCompilerTool': {
+                "AdditionalOptions": [
+                  "/std:c++17"
+                ],
                 'ExceptionHandling': 1,
                 'Optimization': 1,
                 'WholeProgramOptimization': 'true'

src/common.cc

@@ -109,6 +109,10 @@ namespace sharp {
     if (HasAttr(input, "subifd")) {
       descriptor->subifd = AttrAsInt32(input, "subifd");
     }
+    // // PDF background color
+    if (HasAttr(input, "pdfBackground")) {
+      descriptor->pdfBackground = AttrAsVectorOfDouble(input, "pdfBackground");
+    }
     // Create new image
     if (HasAttr(input, "createChannels")) {
       descriptor->createChannels = AttrAsUint32(input, "createChannels");
@@ -402,6 +406,9 @@ namespace sharp {
             if (imageType == ImageType::TIFF) {
               option->set("subifd", descriptor->subifd);
             }
+            if (imageType == ImageType::PDF) {
+              option->set("background", descriptor->pdfBackground);
+            }
             image = VImage::new_from_buffer(descriptor->buffer, descriptor->bufferLength, nullptr, option);
             if (imageType == ImageType::SVG || imageType == ImageType::PDF || imageType == ImageType::MAGICK) {
               image = SetDensity(image, descriptor->density);
@@ -506,6 +513,9 @@ namespace sharp {
             if (imageType == ImageType::TIFF) {
               option->set("subifd", descriptor->subifd);
             }
+            if (imageType == ImageType::PDF) {
+              option->set("background", descriptor->pdfBackground);
+            }
             image = VImage::new_from_file(descriptor->file.data(), option);
             if (imageType == ImageType::SVG || imageType == ImageType::PDF || imageType == ImageType::MAGICK) {
               image = SetDensity(image, descriptor->density);

src/common.h

@@ -15,18 +15,14 @@
 // Verify platform and compiler compatibility
 
 #if (VIPS_MAJOR_VERSION < 8) || \
-  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION < 15) || \
+  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION < 16) || \
-  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 15 && VIPS_MICRO_VERSION < 3)
+  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 16 && VIPS_MICRO_VERSION < 0)
-#error "libvips version 8.15.3+ is required - please see https://sharp.pixelplumbing.com/install"
+#error "libvips version 8.16.0+ is required - please see https://sharp.pixelplumbing.com/install"
 #endif
 
-#if ((!defined(__clang__)) && defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 6)))
+#if defined(__has_include)
-#error "GCC version 4.6+ is required for C++11 features - please see https://sharp.pixelplumbing.com/install"
+#if !__has_include(<filesystem>)
-#endif
+#error "C++17 compiler required - please see https://sharp.pixelplumbing.com/install"
-
-#if (defined(__clang__) && defined(__has_feature))
-#if (!__has_feature(cxx_range_for))
-#error "clang version 3.0+ is required for C++11 features - please see https://sharp.pixelplumbing.com/install"
 #endif
 #endif
 
@@ -74,6 +70,7 @@ namespace sharp {
     int textSpacing;
     VipsTextWrap textWrap;
     int textAutofitDpi;
+    std::vector<double> pdfBackground;
 
     InputDescriptor():
       buffer(nullptr),
@@ -108,7 +105,8 @@ namespace sharp {
       textRgba(false),
       textSpacing(0),
       textWrap(VIPS_TEXT_WRAP_WORD),
-      textAutofitDpi(0) {}
+      textAutofitDpi(0),
+      pdfBackground{ 255.0, 255.0, 255.0, 255.0 } {}
   };
 
   // Convenience methods to access the attributes of a Napi::Object

src/metadata.cc

@@ -3,6 +3,7 @@
 
 #include <numeric>
 #include <vector>
+#include <cmath>
 
 #include <napi.h>
 #include <vips/vips8>
@@ -47,8 +48,11 @@ class MetadataWorker : public Napi::AsyncWorker {
       if (image.get_typeof("interlaced") == G_TYPE_INT) {
         baton->isProgressive = image.get_int("interlaced") == 1;
       }
-      if (image.get_typeof("palette-bit-depth") == G_TYPE_INT) {
+      if (image.get_typeof(VIPS_META_PALETTE) == G_TYPE_INT) {
-        baton->paletteBitDepth = image.get_int("palette-bit-depth");
+        baton->isPalette = image.get_int(VIPS_META_PALETTE);
+      }
+      if (image.get_typeof(VIPS_META_BITS_PER_SAMPLE) == G_TYPE_INT) {
+        baton->bitsPerSample = image.get_int(VIPS_META_BITS_PER_SAMPLE);
       }
       if (image.get_typeof(VIPS_META_N_PAGES) == G_TYPE_INT) {
         baton->pages = image.get_int(VIPS_META_N_PAGES);
@@ -171,8 +175,13 @@ class MetadataWorker : public Napi::AsyncWorker {
         info.Set("chromaSubsampling", baton->chromaSubsampling);
       }
       info.Set("isProgressive", baton->isProgressive);
-      if (baton->paletteBitDepth > 0) {
+      info.Set("isPalette", baton->isPalette);
-        info.Set("paletteBitDepth", baton->paletteBitDepth);
+      if (baton->bitsPerSample > 0) {
+        info.Set("bitsPerSample", baton->bitsPerSample);
+        if (baton->isPalette) {
+          // Deprecated, remove with libvips 8.17.0
+          info.Set("paletteBitDepth", baton->bitsPerSample);
+        }
       }
       if (baton->pages > 0) {
         info.Set("pages", baton->pages);
@@ -218,15 +227,15 @@ class MetadataWorker : public Napi::AsyncWorker {
         info.Set("subifds", baton->subifds);
       }
       if (!baton->background.empty()) {
+        Napi::Object background = Napi::Object::New(env);
         if (baton->background.size() == 3) {
-          Napi::Object background = Napi::Object::New(env);
           background.Set("r", baton->background[0]);
           background.Set("g", baton->background[1]);
           background.Set("b", baton->background[2]);
-          info.Set("background", background);
         } else {
-          info.Set("background", baton->background[0]);
+          background.Set("gray", round(baton->background[0] * 100 / 255));
         }
+        info.Set("background", background);
       }
       info.Set("hasProfile", baton->hasProfile);
       info.Set("hasAlpha", baton->hasAlpha);

src/metadata.h

@@ -24,7 +24,8 @@ struct MetadataBaton {
   int density;
   std::string chromaSubsampling;
   bool isProgressive;
-  int paletteBitDepth;
+  bool isPalette;
+  int bitsPerSample;
   int pages;
   int pageHeight;
   int loop;
@@ -59,7 +60,8 @@ struct MetadataBaton {
     channels(0),
     density(0),
     isProgressive(false),
-    paletteBitDepth(0),
+    isPalette(false),
+    bitsPerSample(0),
     pages(0),
     pageHeight(0),
     loop(-1),

src/pipeline.cc

@@ -3,6 +3,7 @@
 
 #include <algorithm>
 #include <cmath>
+#include <filesystem>
 #include <map>
 #include <memory>
 #include <numeric>
@@ -20,17 +21,6 @@
 #include "operations.h"
 #include "pipeline.h"
 
-#ifdef _WIN32
-#define STAT64_STRUCT __stat64
-#define STAT64_FUNCTION _stat64
-#elif defined(_LARGEFILE64_SOURCE)
-#define STAT64_STRUCT stat64
-#define STAT64_FUNCTION stat64
-#else
-#define STAT64_STRUCT stat
-#define STAT64_FUNCTION stat
-#endif
-
 class PipelineWorker : public Napi::AsyncWorker {
  public:
   PipelineWorker(Napi::Function callback, PipelineBaton *baton,
@@ -929,6 +919,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("lossless", baton->webpLossless)
             ->set("near_lossless", baton->webpNearLossless)
             ->set("smart_subsample", baton->webpSmartSubsample)
+            ->set("smart_deblock", baton->webpSmartDeblock)
             ->set("preset", baton->webpPreset)
             ->set("effort", baton->webpEffort)
             ->set("min_size", baton->webpMinSize)
@@ -1136,6 +1127,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("lossless", baton->webpLossless)
             ->set("near_lossless", baton->webpNearLossless)
             ->set("smart_subsample", baton->webpSmartSubsample)
+            ->set("smart_deblock", baton->webpSmartDeblock)
             ->set("preset", baton->webpPreset)
             ->set("effort", baton->webpEffort)
             ->set("min_size", baton->webpMinSize)
@@ -1304,9 +1296,11 @@ class PipelineWorker : public Napi::AsyncWorker {
         Callback().Call(Receiver().Value(), { env.Null(), data, info });
       } else {
         // Add file size to info
-        struct STAT64_STRUCT st;
+        if (baton->formatOut != "dz" || sharp::IsDzZip(baton->fileOut)) {
-        if (STAT64_FUNCTION(baton->fileOut.data(), &st) == 0) {
+          try {
-          info.Set("size", static_cast<uint32_t>(st.st_size));
+            uint32_t const size = static_cast<uint32_t>(std::filesystem::file_size(baton->fileOut));
+            info.Set("size", size);
+          } catch (...) {}
         }
         Callback().Call(Receiver().Value(), { env.Null(), info });
       }
@@ -1419,6 +1413,7 @@ class PipelineWorker : public Napi::AsyncWorker {
         {"lossless", baton->webpLossless ? "true" : "false"},
         {"near_lossless", baton->webpNearLossless ? "true" : "false"},
         {"smart_subsample", baton->webpSmartSubsample ? "true" : "false"},
+        {"smart_deblock", baton->webpSmartDeblock ? "true" : "false"},
         {"preset", vips_enum_nick(VIPS_TYPE_FOREIGN_WEBP_PRESET, baton->webpPreset)},
         {"min_size", baton->webpMinSize ? "true" : "false"},
         {"mixed", baton->webpMixed ? "true" : "false"},
@@ -1676,6 +1671,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   baton->webpLossless = sharp::AttrAsBool(options, "webpLossless");
   baton->webpNearLossless = sharp::AttrAsBool(options, "webpNearLossless");
   baton->webpSmartSubsample = sharp::AttrAsBool(options, "webpSmartSubsample");
+  baton->webpSmartDeblock = sharp::AttrAsBool(options, "webpSmartDeblock");
   baton->webpPreset = sharp::AttrAsEnum<VipsForeignWebpPreset>(options, "webpPreset", VIPS_TYPE_FOREIGN_WEBP_PRESET);
   baton->webpEffort = sharp::AttrAsUint32(options, "webpEffort");
   baton->webpMinSize = sharp::AttrAsBool(options, "webpMinSize");

src/pipeline.h

@@ -157,6 +157,7 @@ struct PipelineBaton {
   bool webpNearLossless;
   bool webpLossless;
   bool webpSmartSubsample;
+  bool webpSmartDeblock;
   VipsForeignWebpPreset webpPreset;
   int webpEffort;
   bool webpMinSize;
@@ -328,6 +329,7 @@ struct PipelineBaton {
     webpNearLossless(false),
     webpLossless(false),
     webpSmartSubsample(false),
+    webpSmartDeblock(false),
     webpPreset(VIPS_FOREIGN_WEBP_PRESET_DEFAULT),
     webpEffort(4),
     webpMinSize(false),

test/bench/parallel.js

@@ -15,7 +15,6 @@ const width = 720;
 const height = 480;
 
 sharp.concurrency(1);
-sharp.simd(true);
 
 const timer = setInterval(function () {
   console.dir(sharp.counters());

test/bench/random.js

@@ -12,7 +12,6 @@ const sharp = require('../../');
 const fixtures = require('../fixtures');
 
 sharp.cache(false);
-sharp.simd(true);
 
 const min = 320;
 const max = 960;

test/fixtures/index.js

@@ -80,6 +80,8 @@ module.exports = {
   inputPngWithGreyAlpha: getPath('grey-8bit-alpha.png'),
   inputPngWithOneColor: getPath('2x2_fdcce6.png'),
   inputPngWithTransparency16bit: getPath('tbgn2c16.png'), // http://www.schaik.com/pngsuite/tbgn2c16.png
+  inputPng8BitGreyBackground: getPath('bgbn4a08.png'), // http://www.schaik.com/pngsuite/bgbn4a08.png
+  inputPng16BitGreyBackground: getPath('bggn4a16.png'), // http://www.schaik.com/pngsuite/bggn4a16.png
   inputPng16BitGreyAlpha: getPath('16-bit-grey-alpha.png'), // CC-BY-NC-SA florc http://www.colourlovers.com/pattern/50713/pat
   inputPngOverlayLayer0: getPath('alpha-layer-0-background.png'),
   inputPngOverlayLayer1: getPath('alpha-layer-1-fill.png'),

test/types/sharp.test-d.ts

@@ -713,4 +713,9 @@ sharp(input).composite([
     density: 72, 
     failOn: "truncated"
   }
-])
+])
+
+const colour: sharp.Colour = '#fff';
+const color: sharp.Color = '#fff';
+sharp({ pdfBackground: colour });
+sharp({ pdfBackground: color });

test/unit/avif.js

@@ -34,6 +34,7 @@ describe('AVIF', () => {
       // Math.round(13.40625) = 13
       height: 13,
       isProgressive: false,
+      isPalette: false,
       space: 'srgb',
       width: 32
     });
@@ -55,6 +56,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 26,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
@@ -77,6 +80,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 13,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
@@ -100,6 +105,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 300,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
@@ -124,6 +131,8 @@ describe('AVIF', () => {
       hasProfile: false,
       height: 26,
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',

test/unit/failOn.js

@@ -72,7 +72,7 @@ describe('failOn', () => {
 
   it('returns errors to callback for truncated JPEG', function (done) {
     sharp(fixtures.inputJpgTruncated, { failOn: 'truncated' }).toBuffer(function (err, data, info) {
-      assert.ok(err.message.includes('VipsJpeg: Premature end of'), err);
+      assert.ok(err.message.includes('VipsJpeg: premature end of'), err);
       assert.strictEqual(data, undefined);
       assert.strictEqual(info, undefined);
       done();
@@ -95,7 +95,7 @@ describe('failOn', () => {
         throw new Error('Expected rejection');
       })
       .catch(err => {
-        done(err.message.includes('VipsJpeg: Premature end of') ? undefined : err);
+        done(err.message.includes('VipsJpeg: premature end of') ? undefined : err);
       });
   });
 

test/unit/io.js

@@ -893,6 +893,27 @@ describe('Input/output', function () {
         sharp({ subifd: 1.2 });
       }, /Expected integer between -1 and 100000 for subifd but received 1.2 of type number/);
     });
+    it('Valid pdfBackground property (string)', function () {
+      sharp({ pdfBackground: '#00ff00' });
+    });
+    it('Valid pdfBackground property (object)', function () {
+      sharp({ pdfBackground: { r: 0, g: 255, b: 0 } });
+    });
+    it('Invalid pdfBackground property (string) throws', function () {
+      assert.throws(function () {
+        sharp({ pdfBackground: '00ff00' });
+      }, /Unable to parse color from string/);
+    });
+    it('Invalid pdfBackground property (number) throws', function () {
+      assert.throws(function () {
+        sharp({ pdfBackground: 255 });
+      }, /Expected object or string for background/);
+    });
+    it('Invalid pdfBackground property (object)', function () {
+      assert.throws(function () {
+        sharp({ pdfBackground: { red: 0, green: 255, blue: 0 } });
+      }, /Unable to parse color from object/);
+    });
   });
 
   it('Fails when writing to missing directory', async () => {

test/unit/libvips.js

@@ -138,7 +138,7 @@ describe('libvips binaries', function () {
     });
     it('arch', () => {
       const [, arch] = libvips.runtimePlatformArch().split('-');
-      assert.strict(['arm', 'arm64', 'ia32', 'x64'].includes(arch));
+      assert.strict(['arm', 'arm64', 'ia32', 'x64', 'ppc64'].includes(arch));
     });
     it('isUnsupportedNodeRuntime', () => {
       assert.strictEqual(libvips.isUnsupportedNodeRuntime(), undefined);
@@ -179,7 +179,7 @@ describe('libvips binaries', function () {
       process.env.npm_config_arch = 's390x';
       process.env.npm_config_libc = '';
       const locatorHash = libvips.yarnLocator();
-      assert.strictEqual(locatorHash, 'c4ea54fdc1');
+      assert.strictEqual(locatorHash, '9b2ea457de');
       delete process.env.npm_config_platform;
       delete process.env.npm_config_arch;
       delete process.env.npm_config_libc;

test/unit/metadata.js

@@ -201,6 +201,48 @@ describe('Image metadata', function () {
     });
   });
 
+  it('PNG with greyscale bKGD chunk - 8 bit', async () => {
+    const data = await sharp(fixtures.inputPng8BitGreyBackground).metadata();
+    assert.deepStrictEqual(data, {
+      background: {
+        gray: 0
+      },
+      bitsPerSample: 8,
+      channels: 2,
+      density: 72,
+      depth: 'uchar',
+      format: 'png',
+      hasAlpha: true,
+      hasProfile: false,
+      height: 32,
+      isPalette: false,
+      isProgressive: false,
+      space: 'b-w',
+      width: 32
+    });
+  });
+
+  it('PNG with greyscale bKGD chunk - 16 bit', async () => {
+    const data = await sharp(fixtures.inputPng16BitGreyBackground).metadata();
+    assert.deepStrictEqual(data, {
+      background: {
+        gray: 67
+      },
+      bitsPerSample: 16,
+      channels: 2,
+      density: 72,
+      depth: 'ushort',
+      format: 'png',
+      hasAlpha: true,
+      hasProfile: false,
+      height: 32,
+      isPalette: false,
+      isProgressive: false,
+      space: 'grey16',
+      width: 32
+    });
+  });
+
   it('WebP', function (done) {
     sharp(fixtures.inputWebP).metadata(function (err, metadata) {
       if (err) throw err;
@@ -878,6 +920,8 @@ describe('Image metadata', function () {
       channels: 3,
       depth: 'uchar',
       isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
       pages: 1,
       pagePrimary: 0,
       compression: 'av1',
@@ -931,7 +975,7 @@ describe('Image metadata', function () {
     sharp(fixtures.inputJpgWithCorruptHeader)
       .metadata(function (err) {
         assert.strictEqual(true, !!err);
-        assert.ok(err.message.includes('Input file has corrupt header: VipsJpeg: Premature end of'), err);
+        assert.ok(err.message.includes('Input file has corrupt header: VipsJpeg: premature end of'), err);
         done();
       });
   });
@@ -940,7 +984,7 @@ describe('Image metadata', function () {
     sharp(fs.readFileSync(fixtures.inputJpgWithCorruptHeader))
       .metadata(function (err) {
         assert.strictEqual(true, !!err);
-        assert.ok(err.message.includes('Input buffer has corrupt header: VipsJpeg: Premature end of'), err);
+        assert.ok(err.message.includes('Input buffer has corrupt header: VipsJpeg: premature end of'), err);
         done();
       });
   });

test/unit/normalize.js

@@ -15,8 +15,8 @@ const assertNormalized = function (data) {
     min = Math.min(min, data[i]);
     max = Math.max(max, data[i]);
   }
-  assert.strictEqual(0, min);
+  assert.strictEqual(0, min, 'min too high');
-  assert.ok([254, 255].includes(max));
+  assert.ok(max > 248, 'max too low');
 };
 
 describe('Normalization', function () {

test/unit/png.js

@@ -146,6 +146,8 @@ describe('PNG', function () {
       density: 72,
       depth: 'uchar',
       isProgressive: false,
+      isPalette: true,
+      bitsPerSample: 8,
       paletteBitDepth: 8,
       hasProfile: false,
       hasAlpha: false
@@ -218,8 +220,10 @@ describe('PNG', function () {
       .png({ colours: 2, palette: false })
       .toBuffer();
 
-    const { channels, paletteBitDepth, size, space } = await sharp(data).metadata();
+    const { channels, isPalette, bitsPerSample, paletteBitDepth, size, space } = await sharp(data).metadata();
     assert.strictEqual(channels, 1);
+    assert.strictEqual(isPalette, false);
+    assert.strictEqual(bitsPerSample, 1);
     assert.strictEqual(paletteBitDepth, undefined);
     assert.strictEqual(size, 89);
     assert.strictEqual(space, 'b-w');

test/unit/stats.js

@@ -27,7 +27,7 @@ describe('Image Stats', function () {
       if (err) throw err;
 
       assert.strictEqual(true, stats.isOpaque);
-      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
+      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.332915340666659));
       assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.7883011147075762));
 
       const { r, g, b } = stats.dominant;
@@ -272,7 +272,7 @@ describe('Image Stats', function () {
 
       assert.strictEqual(true, stats.isOpaque);
       assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.51758075132966));
-      assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 9.959951636662941));
+      assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 9.971384105278734));
 
       const { r, g, b } = stats.dominant;
       assert.strictEqual(40, r);
@@ -336,8 +336,8 @@ describe('Image Stats', function () {
       if (err) throw err;
 
       assert.strictEqual(true, stats.isOpaque);
-      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 6.087309412541799));
+      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 6.08118048729375));
-      assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 2.9250574456255682));
+      assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 2.936767879098001));
 
       const { r, g, b } = stats.dominant;
       assert.strictEqual(120, r);
@@ -484,7 +484,7 @@ describe('Image Stats', function () {
       if (err) throw err;
 
       assert.strictEqual(true, stats.isOpaque);
-      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
+      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.332915340666659));
       assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.788301114707569));
 
       const { r, g, b } = stats.dominant;
@@ -552,7 +552,7 @@ describe('Image Stats', function () {
 
     return pipeline.stats().then(function (stats) {
       assert.strictEqual(true, stats.isOpaque);
-      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
+      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.332915340666659));
       assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.788301114707569));
 
       const { r, g, b } = stats.dominant;
@@ -615,7 +615,7 @@ describe('Image Stats', function () {
   it('File in, Promise out', function () {
     return sharp(fixtures.inputJpg).stats().then(function (stats) {
       assert.strictEqual(true, stats.isOpaque);
-      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.319914765248541));
+      assert.strictEqual(true, isInAcceptableRange(stats.entropy, 7.332915340666659));
       assert.strictEqual(true, isInAcceptableRange(stats.sharpness, 0.788301114707569));
 
       const { r, g, b } = stats.dominant;
@@ -682,8 +682,8 @@ describe('Image Stats', function () {
     return Promise
       .all([original, blurred])
       .then(([original, blurred]) => {
-        assert.strictEqual(true, isInAcceptableRange(original.sharpness, 0.7883011147075476));
+        assert.strictEqual(true, isInAcceptableRange(original.sharpness, 0.789046400439488));
-        assert.strictEqual(true, isInAcceptableRange(blurred.sharpness, 0.4791559805997398));
+        assert.strictEqual(true, isInAcceptableRange(blurred.sharpness, 0.47985138441709047));
       });
   });
 

test/unit/tile.js

@@ -7,7 +7,6 @@ const fs = require('fs');
 const path = require('path');
 const assert = require('assert');
 
-const eachLimit = require('async/eachLimit');
 const extractZip = require('extract-zip');
 
 const sharp = require('../../');
@@ -31,11 +30,10 @@ const assertDeepZoomTiles = function (directory, expectedSize, expectedLevels, d
     });
   });
   // Verify each tile is <= expectedSize
-  eachLimit(tiles, 8, function (tile, done) {
+  Promise.all(tiles.map(function (tile) {
-    sharp(tile).metadata(function (err, metadata) {
+    return sharp(tile)
-      if (err) {
+      .metadata()
-        done(err);
+      .then(function (metadata) {
-      } else {
         assert.strictEqual('jpeg', metadata.format);
         assert.strictEqual('srgb', metadata.space);
         assert.strictEqual(3, metadata.channels);
@@ -43,10 +41,10 @@ const assertDeepZoomTiles = function (directory, expectedSize, expectedLevels, d
         assert.strictEqual(false, metadata.hasAlpha);
         assert.strictEqual(true, metadata.width <= expectedSize);
         assert.strictEqual(true, metadata.height <= expectedSize);
-        done();
+      });
-      }
+  }))
-    });
+    .then(() => done())
-  }, done);
+    .catch(done);
 };
 
 const assertZoomifyTiles = function (directory, expectedTileSize, expectedLevels, done) {
@@ -485,7 +483,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             fs.stat(path.join(directory, 'ImageProperties.xml'), function (err, stat) {
               if (err) throw err;
               assert.strictEqual(true, stat.isFile());
@@ -511,7 +509,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             assertZoomifyTiles(directory, 256, 1, done);
           });
       });
@@ -532,7 +530,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             assertZoomifyTiles(directory, 256, 5, done);
           });
       });
@@ -553,7 +551,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             assertZoomifyTiles(directory, 256, 13, done);
           });
       });
@@ -577,7 +575,7 @@ describe('Tile', function () {
             assert.strictEqual(2048, info.width);
             assert.strictEqual(1536, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             assertZoomifyTiles(directory, 256, 4, done);
           });
       });
@@ -596,7 +594,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             fs.stat(path.join(directory, '0', '0', '0.jpg'), function (err, stat) {
               if (err) throw err;
               assert.strictEqual(true, stat.isFile());
@@ -623,7 +621,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             const sample = path.join(directory, '0', '0', '0.jpg');
             sharp(sample).metadata(function (err, metadata) {
               if (err) throw err;
@@ -660,7 +658,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             const sample = path.join(directory, '0', '0', '0.png');
             sharp(sample).metadata(function (err, metadata) {
               if (err) throw err;
@@ -698,7 +696,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             const sample = path.join(directory, '0', '0', '0.webp');
             sharp(sample).metadata(function (err, metadata) {
               if (err) throw err;
@@ -734,8 +732,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
-
             assertGoogleTiles(directory, 256, 1, done);
           });
       });
@@ -756,8 +753,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
-
             assertGoogleTiles(directory, 256, 5, done);
           });
       });
@@ -781,8 +777,7 @@ describe('Tile', function () {
             assert.strictEqual(2809, info.width);
             assert.strictEqual(2074, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
-
             assertGoogleTiles(directory, 256, 5, done);
           });
       });
@@ -802,7 +797,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             fixtures.assertSimilar(fixtures.expected('tile_centered.jpg'), fs.readFileSync(path.join(directory, '0', '0', '0.jpg')), done);
           });
       });
@@ -822,7 +817,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             fixtures.assertSimilar(fixtures.expected('tile_centered.jpg'), fs.readFileSync(path.join(directory, '0', '0', '0.jpg')), done);
           });
       });
@@ -844,7 +839,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             const infoJson = require(path.join(directory, 'info.json'));
             assert.strictEqual('http://iiif.io/api/image/2/context.json', infoJson['@context']);
             assert.strictEqual(`${id}/${name}`, infoJson['@id']);
@@ -874,7 +869,7 @@ describe('Tile', function () {
             assert.strictEqual(2725, info.width);
             assert.strictEqual(2225, info.height);
             assert.strictEqual(3, info.channels);
-            assert.strictEqual('number', typeof info.size);
+            assert.strictEqual(undefined, info.size);
             const infoJson = require(path.join(directory, 'info.json'));
             assert.strictEqual('http://iiif.io/api/image/3/context.json', infoJson['@context']);
             assert.strictEqual('ImageService3', infoJson.type);

test/unit/webp.js

@@ -102,6 +102,29 @@ describe('WebP', function () {
     });
   });
 
+  it('can produce a different file size using smartDeblock', () =>
+    sharp(fixtures.inputPngOverlayLayer0)
+      .resize(320, 240)
+      .webp({ quality: 30, smartDeblock: false })
+      .toBuffer()
+      .then(withoutSmartDeblock =>
+        sharp(fixtures.inputPngOverlayLayer0)
+          .resize(320, 240)
+          .webp({ quality: 30, smartDeblock: true })
+          .toBuffer()
+          .then(withSmartDeblock => {
+            assert.strictEqual(true, withSmartDeblock.length !== withoutSmartDeblock.length);
+          })
+      )
+  );
+
+  it('invalid smartDeblock throws', () => {
+    assert.throws(
+      () => sharp().webp({ smartDeblock: 1 }),
+      /Expected boolean for webpSmartDeblock but received 1 of type number/
+    );
+  });
+
   it('should produce a different file size with specific preset', () =>
     sharp(fixtures.inputJpg)
       .resize(320, 240)