Add Media Type to metadata response #4492

As of 8.18.0, libvips C++ wrapper retrieves error messages at
exception construction time rather than lazily when accessed.

On Windows this led to error messages being referenced rather
than copied, leading to access beyond their lifetime and possible
corruption.

.cirrus.yml

@@ -1,18 +0,0 @@
-freebsd_instance:
-  image_family: freebsd-15-0
-
-task:
-  name: FreeBSD
-  env:
-    IGNORE_OSVERSION: yes
-  skip_notifications: true
-  prerequisites_script:
-    - pkg update -f
-    - pkg upgrade -y
-    - pkg install -y devel/git devel/pkgconf graphics/vips www/node22 www/npm
-    - pkg-config --modversion vips-cpp
-  install_script:
-    - npm install
-    - npm run build
-  test_script:
-    - node --test test/unit/io.js

.github/ISSUE_TEMPLATE/installation.md

@@ -31,7 +31,7 @@ please open an issue against that package instead.
 
 <!-- Please place an [x] in the relevant box to confirm. -->
 
-- [ ] I am using Node.js with a version that satisfies `^18.17.0 || ^20.3.0 || >=21.0.0`
+- [ ] I am using Node.js with a version that satisfies `>=20.9.0`
 - [ ] I am using Deno
 - [ ] I am using Bun
 

.github/workflows/ci.yml

@@ -9,8 +9,8 @@ jobs:
       contents: read
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: "24"
       - run: npm install --ignore-scripts
@@ -31,123 +31,124 @@ jobs:
           - os: ubuntu-24.04
             container: rockylinux:8
             nodejs_arch: x64
-            nodejs_version: "^18.17.0"
+            nodejs_version: "^20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
             platform: linux-x64
             package: true
           - os: ubuntu-24.04
             container: rockylinux:8
             nodejs_arch: x64
-            nodejs_version: "^20.3.0"
+            nodejs_version: "^22"
-            nodejs_version_major: 20
-            platform: linux-x64
-          - 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
+            container: rockylinux:8
-            nodejs_version_major: 18
+            nodejs_arch: x64
-            platform: linuxmusl-x64
+            nodejs_version: "^24"
-            package: true
+            nodejs_version_major: 24
+            platform: linux-x64
           - os: ubuntu-24.04
             container: node:20-alpine3.18
             nodejs_version_major: 20
             platform: linuxmusl-x64
+            package: true
           - os: ubuntu-24.04
             container: node:22-alpine3.20
             nodejs_version_major: 22
             platform: linuxmusl-x64
+          - os: ubuntu-24.04
+            container: node:24-alpine3.22
+            nodejs_version_major: 24
+            platform: linuxmusl-x64
           - os: ubuntu-24.04-arm
             container: arm64v8/rockylinux:8
             nodejs_arch: arm64
-            nodejs_version: "^18.17.0"
+            nodejs_version: "^20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
             platform: linux-arm64
             package: true
           - os: ubuntu-24.04-arm
             container: arm64v8/rockylinux:8
             nodejs_arch: arm64
-            nodejs_version: "^20.3.0"
+            nodejs_version: "^22"
-            nodejs_version_major: 20
+            nodejs_version_major: 22
+            platform: linux-arm64
+          - os: ubuntu-24.04-arm
+            container: arm64v8/rockylinux:8
+            nodejs_arch: arm64
+            nodejs_version: "^24"
+            nodejs_version_major: 24
             platform: linux-arm64
           - os: macos-15-intel
             nodejs_arch: x64
-            nodejs_version: "^18.17.0"
+            nodejs_version: "^20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
             platform: darwin-x64
             package: true
           - os: macos-15-intel
             nodejs_arch: x64
-            nodejs_version: "^20.3.0"
+            nodejs_version: "^22"
-            nodejs_version_major: 20
+            nodejs_version_major: 22
             platform: darwin-x64
           - os: macos-15-intel
             nodejs_arch: x64
-            nodejs_version: "^22.9.0"
+            nodejs_version: "^24"
-            nodejs_version_major: 22
+            nodejs_version_major: 24
             platform: darwin-x64
           - os: macos-15
             nodejs_arch: arm64
-            nodejs_version: "^18.17.0"
+            nodejs_version: "^20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
             platform: darwin-arm64
             package: true
           - os: macos-15
             nodejs_arch: arm64
-            nodejs_version: "^20.3.0"
+            nodejs_version: "^22"
-            nodejs_version_major: 20
+            nodejs_version_major: 22
             platform: darwin-arm64
           - os: macos-15
             nodejs_arch: arm64
-            nodejs_version: "^22.9.0"
+            nodejs_version: "^24"
-            nodejs_version_major: 22
+            nodejs_version_major: 24
             platform: darwin-arm64
           - os: windows-2022
             nodejs_arch: x86
-            nodejs_version: "18.18.2" # pinned to avoid 18.19.0 and npm 10
+            nodejs_version: "^20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
             platform: win32-ia32
             package: true
-          - os: windows-2022
-            nodejs_arch: x86
-            nodejs_version: "^20.3.0"
-            nodejs_version_major: 20
-            platform: win32-ia32
-          - os: windows-2022
-            nodejs_arch: x86
-            nodejs_version: "^22.9.0"
-            nodejs_version_major: 22
-            platform: win32-ia32
           - os: windows-2022
             nodejs_arch: x64
-            nodejs_version: "^18.17.0"
+            nodejs_version: "^20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
             platform: win32-x64
             package: true
           - os: windows-2022
             nodejs_arch: x64
-            nodejs_version: "^20.3.0"
+            nodejs_version: "^22"
-            nodejs_version_major: 20
+            nodejs_version_major: 22
             platform: win32-x64
           - os: windows-2022
             nodejs_arch: x64
-            nodejs_version: "^22.9.0"
+            nodejs_version: "^24"
-            nodejs_version_major: 22
+            nodejs_version_major: 24
             platform: win32-x64
           - os: windows-11-arm
             nodejs_arch: arm64
-            nodejs_version: "^20.3.0"
+            nodejs_version: "^20.9.0"
             nodejs_version_major: 20
             platform: win32-arm64
             package: true
           - os: windows-11-arm
             nodejs_arch: arm64
-            nodejs_version: "^22.9.0"
+            nodejs_version: "^22"
             nodejs_version_major: 22
             platform: win32-arm64
+          - os: windows-11-arm
+            nodejs_arch: arm64
+            nodejs_version: "^24"
+            nodejs_version_major: 24
+            platform: win32-arm64
     steps:
       - name: Dependencies (Rocky Linux glibc)
         if: contains(matrix.container, 'rockylinux')
@@ -159,22 +160,22 @@ jobs:
         run: apk add build-base git python3 font-noto --update-cache
       - name: Dependencies (Python 3.11 - macOS, Windows)
         if: contains(matrix.os, 'macos') || contains(matrix.os, 'windows')
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.12"
       - name: Dependencies (Node.js)
         if: "!contains(matrix.platform, 'linuxmusl')"
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.nodejs_version }}
           architecture: ${{ matrix.nodejs_arch }}
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - run: npm install
       - run: npm run build
       - run: npm run test-unit
       - if: matrix.package
         run: npm run package-from-local-build
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         if: matrix.package
         with:
           name: ${{ matrix.platform }}
@@ -191,16 +192,18 @@ jobs:
       image: ${{ matrix.container }}
       volumes:
         - /opt:/opt:rw,rshared
-        - /opt:/__e/node20:ro,rshared
+        - /opt:/__e/node24:ro,rshared
     strategy:
       fail-fast: false
       matrix:
         include:
-        - container: node:18-alpine3.17
+        - container: node:20-alpine3.20
-          nodejs_version_major: 18
-          package: true
-        - container: node:20-alpine3.18
           nodejs_version_major: 20
+          package: true
+        - container: node:22-alpine3.20
+          nodejs_version_major: 22
+        - container: node:24-alpine3.22
+          nodejs_version_major: 24
     steps:
       - name: Allow Linux musl containers on ARM64 runners # https://github.com/actions/runner/issues/801#issuecomment-2394425757
         shell: sh
@@ -211,13 +214,13 @@ jobs:
           ln -s /usr/bin/node /opt/bin/node
       - name: Dependencies
         run: apk add build-base git python3 font-noto --update-cache
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - run: npm install
       - run: npm run build
       - run: npm run test-unit
       - if: matrix.package
         run: npm run package-from-local-build
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         if: matrix.package
         with:
           name: linuxmusl-arm64
@@ -238,20 +241,20 @@ jobs:
             base_image: "balenalib/rpi-raspbian:bullseye"
             nodejs_arch: armv6l
             nodejs_hostname: unofficial-builds.nodejs.org
-            nodejs_version: "18.17.0"
+            nodejs_version: "20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
           - platform: linux-s390x
             base_image: "--platform=linux/s390x s390x/debian:bookworm"
             nodejs_arch: s390x
             nodejs_hostname: nodejs.org
-            nodejs_version: "18.17.0"
+            nodejs_version: "20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
           - platform: linux-ppc64
             base_image: "--platform=linux/ppc64le ppc64le/debian:bookworm"
             nodejs_arch: ppc64le
             nodejs_hostname: nodejs.org
-            nodejs_version: "18.17.0"
+            nodejs_version: "20.9.0"
-            nodejs_version_major: 18
+            nodejs_version_major: 20
           - platform: linux-riscv64
             base_image: "--platform=linux/riscv64 riscv64/debian:trixie"
             compiler_flags: "-march=rv64gc"
@@ -260,7 +263,7 @@ jobs:
             nodejs_version: "20.19.5"
             nodejs_version_major: 20
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: uraimo/run-on-arch-action@v3
         with:
           arch: none
@@ -279,19 +282,39 @@ jobs:
             npm run build
             node --test test/unit/io.js
             npm run package-from-local-build
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: ${{ matrix.platform }}
           path: npm/${{ matrix.platform }}
           retention-days: 1
           if-no-files-found: error
+  build-freebsd:
+    permissions:
+      contents: read
+    needs: lint
+    name: "build-freebsd"
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v6
+      - uses: vmactions/freebsd-vm@v1
+        continue-on-error: true
+        with:
+          prepare: |
+            pkg update -f
+            pkg upgrade -y
+            pkg install -y devel/git devel/pkgconf graphics/vips www/node22 www/npm
+            pkg-config --modversion vips-cpp
+          run: |
+            npm install
+            npm run build
+            node --test test/unit/io.js
   build-emscripten:
     permissions:
       contents: read
     needs: lint
     name: "build-wasm32 [package]"
     runs-on: ubuntu-24.04
-    container: "emscripten/emsdk:4.0.18"
+    container: "emscripten/emsdk:4.0.21"
     steps:
       - uses: actions/checkout@v4
       - name: Dependencies
@@ -311,7 +334,7 @@ jobs:
           test "$EMSCRIPTEN_VERSION_LIBVIPS" = "$EMSCRIPTEN_VERSION_SHARP"
       - run: emmake npm run test-unit
       - run: emmake npm run package-from-local-build
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: wasm32
           path: npm/wasm32
@@ -329,12 +352,12 @@ jobs:
       - build-emscripten
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v7
         with:
           path: npm
       - name: Create npm workspace tarball
         run: tar -vcaf npm-workspace.tar.xz --directory npm --exclude=from-local-build.js .
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: '24'
       - name: Create release notes

.github/workflows/npm.yml

@@ -96,7 +96,7 @@ jobs:
     steps:
       - name: Install Node.js
         if: ${{ matrix.runtime == 'node' }}
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: 20
       - name: Install pnpm

.gitignore

@@ -1,7 +1,6 @@
 src/build
 src/node_modules
 node_modules
-/coverage
 npm/*/*
 !npm/*/package.json
 test/bench/node_modules
@@ -9,7 +8,6 @@ test/fixtures/output*
 test/fixtures/vips-properties.xml
 test/leak/libvips.supp
 .DS_Store
-.nyc_output
 .vscode/
 package-lock.json
 .idea

README.md

@@ -8,7 +8,7 @@ smaller, web-friendly JPEG, PNG, WebP, GIF and AVIF images of varying dimensions
 
 It can be used with all JavaScript runtimes
 that provide support for Node-API v9, including
-Node.js (^18.17.0 or >= 20.3.0), Deno and Bun.
+Node.js (>= 20.9.0), Deno and Bun.
 
 Resizing an image is typically 4x-5x faster than using the
 quickest ImageMagick and GraphicsMagick settings

biome.json

@@ -1,5 +1,5 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.3.4/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.3.10/schema.json",
   "vcs": {
     "enabled": true,
     "clientKind": "git",

docs/package.json

@@ -11,8 +11,9 @@
     "astro": "astro"
   },
   "dependencies": {
-    "@astrojs/starlight": "^0.36.2",
+    "@astrojs/starlight": "^0.37.1",
-    "astro": "^5.15.3",
+    "astro": "^5.16.6",
-    "starlight-auto-sidebar": "^0.1.3"
+    "jsdoc-to-markdown": "^9.1.3",
+    "starlight-auto-sidebar": "^0.1.4"
   }
 }

docs/public/humans.txt

@@ -326,3 +326,6 @@ GitHub: https://github.com/tpatel
 
 Name: Maël Nison
 GitHub: https://github.com/arcanis
+
+Name: Dmytro Tiapukhin
+GitHub: https://github.com/eddienubes

docs/src/content/docs/api-input.md

@@ -17,7 +17,8 @@ Dimensions in the response will respect the `page` and `pages` properties of the
 
 A `Promise` is returned when `callback` is not provided.
 
-- `format`: Name of decoder used to decompress image data e.g. `jpeg`, `png`, `webp`, `gif`, `svg`
+- `format`: Name of decoder used to parse image e.g. `jpeg`, `png`, `webp`, `gif`, `svg`, `heif`, `tiff`
+- `mediaType`: Media Type (MIME Type) e.g. `image/jpeg`, `image/png`, `image/svg+xml`, `image/avif`
 - `size`: Total size of image in bytes, for Stream and Buffer input only
 - `width`: Number of pixels wide (EXIF orientation is not taken into consideration, see example below)
 - `height`: Number of pixels high (EXIF orientation is not taken into consideration, see example below)
@@ -50,6 +51,7 @@ A `Promise` is returned when `callback` is not provided.
 - `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.
+- `gainMap.image`: HDR gain map, if present, as compressed JPEG image.
 
 
 

docs/src/content/docs/api-operation.md

@@ -170,7 +170,7 @@ inputStream
 
 
 ## sharpen
-> sharpen([options], [flat], [jagged]) ⇒ <code>Sharp</code>
+> sharpen([options]) ⇒ <code>Sharp</code>
 
 Sharpen the image.
 
@@ -189,15 +189,13 @@ See [libvips sharpen](https://www.libvips.org/API/current/method.Image.sharpen.h
 
 | Param | Type | Default | Description |
 | --- | --- | --- | --- |
-| [options] | <code>Object</code> \| <code>number</code> |  | if present, is an Object with attributes |
+| [options] | <code>Object</code> |  | if present, is an Object with attributes |
 | [options.sigma] | <code>number</code> |  | the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`, between 0.000001 and 10 |
 | [options.m1] | <code>number</code> | <code>1.0</code> | the level of sharpening to apply to "flat" areas, between 0 and 1000000 |
 | [options.m2] | <code>number</code> | <code>2.0</code> | the level of sharpening to apply to "jagged" areas, between 0 and 1000000 |
 | [options.x1] | <code>number</code> | <code>2.0</code> | threshold between "flat" and "jagged", between 0 and 1000000 |
 | [options.y2] | <code>number</code> | <code>10.0</code> | maximum amount of brightening, between 0 and 1000000 |
 | [options.y3] | <code>number</code> | <code>20.0</code> | maximum amount of darkening, between 0 and 1000000 |
-| [flat] | <code>number</code> |  | (deprecated) see `options.m1`. |
-| [jagged] | <code>number</code> |  | (deprecated) see `options.m2`. |
 
 **Example**  
 ```js
@@ -360,8 +358,6 @@ with all white pixel values made fully transparent.
 
 Existing alpha channel values for non-white pixels remain unchanged.
 
-This feature is experimental and the API may change.
-
 
 **Since**: 0.32.1  
 **Example**  

docs/src/content/docs/api-output.md

@@ -117,6 +117,38 @@ await sharp(pixelArray, { raw: { width, height, channels } })
 ```
 
 
+## toUint8Array
+> toUint8Array() ⇒ <code>Promise.&lt;{data: Uint8Array, info: Object}&gt;</code>
+
+Write output to a `Uint8Array` backed by a transferable `ArrayBuffer`.
+JPEG, PNG, WebP, AVIF, TIFF, GIF and raw pixel data output are supported.
+
+Use [toFormat](#toformat) or one of the format-specific functions such as [jpeg](#jpeg), [png](#png) etc. to set the output format.
+
+If no explicit format is set, the output format will match the input image, except SVG input which becomes PNG output.
+
+By default all metadata will be removed, which includes EXIF-based orientation.
+See [keepExif](#keepexif) and similar methods for control over this.
+
+Resolves with an `Object` containing:
+- `data` is the output image as a `Uint8Array` backed by a transferable `ArrayBuffer`.
+- `info` contains properties relating to the output image such as `width` and `height`.
+
+
+**Since**: v0.35.0  
+**Example**  
+```js
+const { data, info } = await sharp(input).toUint8Array();
+```
+**Example**  
+```js
+const { data } = await sharp(input)
+  .avif()
+  .toUint8Array();
+const base64String = data.toBase64();
+```
+
+
 ## keepExif
 > keepExif() ⇒ <code>Sharp</code>
 
@@ -250,6 +282,27 @@ const outputWithP3 = await sharp(input)
 ```
 
 
+## withGainMap
+> withGainMap() ⇒ <code>Sharp</code>
+
+If the input contains gain map metadata, use it to convert the main image to HDR (High Dynamic Range) before further processing.
+The input gain map is discarded.
+
+If the output is JPEG, generate and attach a new ISO 21496-1 gain map.
+JPEG output options other than `quality` are ignored.
+
+This feature is experimental and the API may change.
+
+
+**Since**: 0.35.0  
+**Example**  
+```js
+const outputWithGainMap = await sharp(inputWithGainMap)
+  .withGainMap()
+  .toBuffer();
+```
+
+
 ## keepXmp
 > keepXmp() ⇒ <code>Sharp</code>
 
@@ -510,6 +563,7 @@ Use these WebP options for output image.
 | [options.delay] | <code>number</code> \| <code>Array.&lt;number&gt;</code> |  | delay(s) between animation frames (in milliseconds) |
 | [options.minSize] | <code>boolean</code> | <code>false</code> | prevent use of animation key frames to minimise file size (slow) |
 | [options.mixed] | <code>boolean</code> | <code>false</code> | allow mixture of lossy and lossless animation frames (slow) |
+| [options.exact] | <code>boolean</code> | <code>false</code> | preserve the colour data in transparent pixels |
 | [options.force] | <code>boolean</code> | <code>true</code> | force WebP output, otherwise attempt to use input format |
 
 **Example**  
@@ -663,7 +717,7 @@ instead of providing `xres` and `yres` in pixels/mm.
 | [options.xres] | <code>number</code> | <code>1.0</code> | horizontal resolution in pixels/mm |
 | [options.yres] | <code>number</code> | <code>1.0</code> | vertical resolution in pixels/mm |
 | [options.resolutionUnit] | <code>string</code> | <code>&quot;&#x27;inch&#x27;&quot;</code> | resolution unit options: inch, cm |
-| [options.bitdepth] | <code>number</code> | <code>8</code> | reduce bitdepth to 1, 2 or 4 bit |
+| [options.bitdepth] | <code>number</code> | <code>0</code> | reduce bitdepth to 1, 2 or 4 bit |
 | [options.miniswhite] | <code>boolean</code> | <code>false</code> | write 1-bit images as miniswhite |
 
 **Example**  
@@ -687,8 +741,7 @@ Use these AVIF options for output image.
 AVIF image sequences are not supported.
 Prebuilt binaries support a bitdepth of 8 only.
 
-This feature is experimental on the Windows ARM64 platform
+When using Windows ARM64, this feature requires a CPU with ARM64v8.4 or later.
-and requires a CPU with ARM64v8.4 or later.
 
 
 **Throws**:
@@ -705,6 +758,7 @@ and requires a CPU with ARM64v8.4 or later.
 | [options.effort] | <code>number</code> | <code>4</code> | CPU effort, between 0 (fastest) and 9 (slowest) |
 | [options.chromaSubsampling] | <code>string</code> | <code>&quot;&#x27;4:4:4&#x27;&quot;</code> | set to '4:2:0' to use chroma subsampling |
 | [options.bitdepth] | <code>number</code> | <code>8</code> | set bitdepth to 8, 10 or 12 bit |
+| [options.tune] | <code>string</code> | <code>&quot;&#x27;iq&#x27;&quot;</code> | tune output for a quality metric, one of 'iq' (default), 'ssim' (default when lossless) or 'psnr' |
 
 **Example**  
 ```js
@@ -744,6 +798,7 @@ globally-installed libvips compiled with support for libheif, libde265 and x265.
 | [options.effort] | <code>number</code> | <code>4</code> | CPU effort, between 0 (fastest) and 9 (slowest) |
 | [options.chromaSubsampling] | <code>string</code> | <code>&quot;&#x27;4:4:4&#x27;&quot;</code> | set to '4:2:0' to use chroma subsampling |
 | [options.bitdepth] | <code>number</code> | <code>8</code> | set bitdepth to 8, 10 or 12 bit |
+| [options.tune] | <code>string</code> | <code>&quot;&#x27;ssim&#x27;&quot;</code> | tune output for a quality metric, one of 'ssim' (default), 'psnr' or 'iq' |
 
 **Example**  
 ```js

docs/src/content/docs/api-resize.md

@@ -284,6 +284,7 @@ The `info` response Object will contain `trimOffsetLeft` and `trimOffsetTop` pro
 | [options.background] | <code>string</code> \| <code>Object</code> | <code>&quot;&#x27;top-left pixel&#x27;&quot;</code> | Background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to that of the top-left pixel. |
 | [options.threshold] | <code>number</code> | <code>10</code> | Allowed difference from the above colour, a positive number. |
 | [options.lineArt] | <code>boolean</code> | <code>false</code> | Does the input more closely resemble line art (e.g. vector) rather than being photographic? |
+| [options.margin] | <code>number</code> | <code>0</code> | Leave a margin around trimmed content, value is in pixels. |
 
 **Example**  
 ```js
@@ -320,4 +321,13 @@ const output = await sharp(input)
     threshold: 42,
   })
   .toBuffer();
+```
+**Example**  
+```js
+// Trim image leaving (up to) a 10 pixel margin around the trimmed content.
+const output = await sharp(input)
+  .trim({
+    margin: 10
+  })
+  .toBuffer();
 ```

docs/src/content/docs/changelog/v0.35.0.md

@@ -0,0 +1,49 @@
+---
+title: v0.35.0 - TBC
+slug: changelog/v0.35.0
+---
+
+* Breaking: Drop support for Node.js 18, now requires Node.js >= 20.9.0.
+
+* Breaking: Remove `install` script from `package.json` file.
+  Compiling from source is now opt-in via the `build` script.
+
+* Breaking: AVIF output is now tuned using SSIMULACRA2-based `iq` quality metrics rather than `ssim`.
+
+* Breaking: Remove deprecated `failOnError` constructor property.
+
+* Breaking: Remove deprecated `paletteBitDepth` from `metadata` response.
+
+* Breaking: Remove deprecated properties from `sharpen` operation.
+
+* Breaking: Rename `format.jp2k` as `format.jp2` for API consistency.
+
+* Upgrade to libvips v8.18.0 for upstream bug fixes.
+
+* Ensure TIFF output `bitdepth` option is limited to 1, 2 or 4.
+
+* Deprecate Windows 32-bit (win32-ia32) prebuilt binaries.
+
+* Add AVIF/HEIF `tune` option for control over quality metrics.
+  [#4227](https://github.com/lovell/sharp/issues/4227)
+
+* Add `withGainMap` to process HDR JPEG images with embedded gain maps.
+  [#4314](https://github.com/lovell/sharp/issues/4314)
+
+* Add `toUint8Array` for output image as a `TypedArray` backed by a transferable `ArrayBuffer`.
+  [#4355](https://github.com/lovell/sharp/issues/4355)
+
+* TypeScript: Ensure `FormatEnum` keys match reality.
+  [#4475](https://github.com/lovell/sharp/issues/4475)
+
+* Add `margin` option to `trim` operation.
+  [#4480](https://github.com/lovell/sharp/issues/4480)
+  [@eddienubes](https://github.com/eddienubes)
+
+* Ensure HEIF primary item is used as default page/frame.
+  [#4487](https://github.com/lovell/sharp/issues/4487)
+
+* Add image Media Type (MIME Type) to metadata response.
+  [#4492](https://github.com/lovell/sharp/issues/4492)
+
+* Add WebP `exact` option for control over transparent pixel colour values.

docs/src/content/docs/index.md

@@ -10,7 +10,7 @@ smaller, web-friendly JPEG, PNG, WebP, GIF and AVIF images of varying dimensions
 
 It can be used with all JavaScript runtimes
 that provide support for Node-API v9, including
-Node.js >= 18.17.0, Deno and Bun.
+Node.js >= 20.9.0, Deno and Bun.
 
 Resizing an image is typically 4x-5x faster than using the
 quickest ImageMagick and GraphicsMagick settings

docs/src/content/docs/install.md

@@ -20,10 +20,6 @@ npm install sharp
 pnpm add sharp
 ```
 
-When using `pnpm`, add `sharp` to
-[ignoredBuiltDependencies](https://pnpm.io/settings#ignoredbuiltdependencies)
-to silence warnings.
-
 ```sh frame="none"
 yarn add sharp
 ```
@@ -39,7 +35,7 @@ deno run --allow-env --allow-ffi --allow-read --allow-sys ...
 
 ## Prerequisites
 
-* Node-API v9 compatible runtime e.g. Node.js ^18.17.0 or >=20.3.0.
+* Node-API v9 compatible runtime e.g. Node.js >= 20.9.0.
 
 ## Prebuilt binaries
 
@@ -54,8 +50,8 @@ Ready-compiled sharp and libvips binaries are provided for use on the most commo
 * Linux s390x (glibc >= 2.36)
 * Linux x64 (glibc >= 2.26, musl >= 1.2.2, CPU with SSE4.2)
 * Windows x64
-* Windows x86
+* Windows x86 (deprecated, Node.js 20 only)
-* Windows ARM64 (experimental, CPU with ARMv8.4 required for all features)
+* Windows ARM64 (CPU with ARMv8.4 required for all features)
 
 This provides support for the
 JPEG, PNG, WebP, AVIF (limited to 8-bit depth), TIFF, GIF and SVG (input) image formats.
@@ -112,13 +108,13 @@ and on macOS when running Node.js under Rosetta.
 
 ## Building from source
 
-This module will be compiled from source when:
+```sh frame="none"
+npm install sharp
+npm explore sharp -- npm run build
+```
 
-* a globally-installed libvips is detected, or
+The build process will search for a globally-installed libvips.
-* using `npm explore sharp -- npm run build`, or
+This detection logic can be skipped by setting the
-* using the deprecated `npm run --build-from-source` at `npm install` time.
-
-The logic to detect a globally-installed libvips can be skipped by setting the
 `SHARP_IGNORE_GLOBAL_LIBVIPS` (never try to use it) or
 `SHARP_FORCE_GLOBAL_LIBVIPS` (always try to use it, even when missing or outdated)
 environment variables.
@@ -129,21 +125,12 @@ Building from source requires:
 * [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
 
-There is an install-time check for these dependencies.
 If `node-addon-api` or `node-gyp` cannot be found, try adding them via:
 
 ```sh frame="none"
 npm install --save node-addon-api node-gyp
 ```
 
-When using `pnpm`, you may need to add `sharp` to
-[onlyBuiltDependencies](https://pnpm.io/settings#onlybuiltdependencies)
-to ensure the installation script can be run.
-
-For cross-compiling, the `--platform`, `--arch` and `--libc` npm flags
-(or the `npm_config_platform`, `npm_config_arch` and `npm_config_libc` environment variables)
-can be used to configure the target environment.
-
 ## WebAssembly
 
 Experimental support is provided for runtime environments that provide
@@ -166,10 +153,8 @@ as well as the additional [building from source](#building-from-source) dependen
 
 ```sh frame="none"
 pkg install -y pkgconf vips
-```
+npm install sharp
-
+npm explore sharp -- npm run build
-```sh frame="none"
-cd /usr/ports/graphics/vips/ && make install clean
 ```
 
 ## Linux memory allocator
@@ -203,6 +188,12 @@ and how to configure it.
 Some package managers use symbolic links
 but AWS Lambda does not support these within deployment packages.
 
+An alternative approach is to use a well-maintained, third-party Lambda Layer:
+
+- [cbschuld/sharp-aws-lambda-layer](https://github.com/cbschuld/sharp-aws-lambda-layer)
+- [pH200/sharp-layer](https://github.com/pH200/sharp-layer)
+- [zoellner/sharp-heic-lambda-layer](https://github.com/zoellner/sharp-heic-lambda-layer)
+
 To get the best performance select the largest memory available.
 A 1536 MB function provides ~12x more CPU time than a 128 MB function.
 

install/build.js

@@ -10,7 +10,7 @@ const {
   spawnRebuild,
 } = require('../lib/libvips');
 
-log('Attempting to build from source via node-gyp');
+log('Building from source');
 log('See https://sharp.pixelplumbing.com/install#building-from-source');
 
 try {
@@ -29,7 +29,7 @@ try {
 }
 
 if (useGlobalLibvips(log)) {
-  log(`Detected globally-installed libvips v${globalLibvipsVersion()}`);
+  log(`Found globally-installed libvips v${globalLibvipsVersion()}`);
 }
 
 const status = spawnRebuild();

install/check.js

@@ -1,14 +0,0 @@
-/*!
-  Copyright 2013 Lovell Fuller and others.
-  SPDX-License-Identifier: Apache-2.0
-*/
-
-try {
-  const { useGlobalLibvips } = require('../lib/libvips');
-  if (useGlobalLibvips() || process.env.npm_config_build_from_source) {
-    process.exit(1);
-  }
-} catch (err) {
-  const summary = err.message.split(/\n/).slice(0, 1);
-  console.log(`sharp: skipping install check: ${summary}`);
-}

lib/constructor.js

@@ -278,6 +278,7 @@ const Sharp = function (input, options) {
     trimBackground: [],
     trimThreshold: -1,
     trimLineArt: false,
+    trimMargin: 0,
     dilateWidth: 0,
     erodeWidth: 0,
     gamma: 0,
@@ -306,6 +307,7 @@ const Sharp = function (input, options) {
     fileOut: '',
     formatOut: 'input',
     streamOut: false,
+    typedArrayOut: false,
     keepMetadata: 0,
     withMetadataOrientation: -1,
     withMetadataDensity: 0,
@@ -313,6 +315,7 @@ const Sharp = function (input, options) {
     withExif: {},
     withExifMerge: true,
     withXmp: '',
+    withGainMap: false,
     resolveWithObject: false,
     loop: -1,
     delay: [],
@@ -348,6 +351,7 @@ const Sharp = function (input, options) {
     webpEffort: 4,
     webpMinSize: false,
     webpMixed: false,
+    webpExact: false,
     gifBitdepth: 8,
     gifEffort: 7,
     gifDither: 1,
@@ -362,7 +366,7 @@ const Sharp = function (input, options) {
     tiffPredictor: 'horizontal',
     tiffPyramid: false,
     tiffMiniswhite: false,
-    tiffBitdepth: 8,
+    tiffBitdepth: 0,
     tiffTile: false,
     tiffTileHeight: 256,
     tiffTileWidth: 256,
@@ -375,6 +379,7 @@ const Sharp = function (input, options) {
     heifEffort: 4,
     heifChromaSubsampling: '4:4:4',
     heifBitdepth: 8,
+    heifTune: 'ssim',
     jxlDistance: 1,
     jxlDecodingTier: 0,
     jxlEffort: 7,

lib/index.d.ts

@@ -259,7 +259,6 @@ declare namespace sharp {
          * Set the pipeline colourspace.
          * The input image will be converted to the provided colourspace at the start of the pipeline.
          * All operations will use this colourspace before converting to the output colourspace, as defined by toColourspace.
-         * This feature is experimental and has not yet been fully-tested with all operations.
          *
          * @param colourspace pipeline colourspace e.g. rgb16, scrgb, lab, grey16 ...
          * @throws {Error} Invalid parameters
@@ -470,21 +469,6 @@ declare namespace sharp {
          */
         sharpen(options?: SharpenOptions): Sharp;
 
-        /**
-         * Sharpen the image.
-         * When used without parameters, performs a fast, mild sharpen of the output image.
-         * When a sigma is provided, performs a slower, more accurate sharpen of the L channel in the LAB colour space.
-         * Fine-grained control over the level of sharpening in "flat" (m1) and "jagged" (m2) areas is available.
-         * @param sigma the sigma of the Gaussian mask, where sigma = 1 + radius / 2.
-         * @param flat the level of sharpening to apply to "flat" areas. (optional, default 1.0)
-         * @param jagged the level of sharpening to apply to "jagged" areas. (optional, default 2.0)
-         * @throws {Error} Invalid parameters
-         * @returns A sharp instance that can be used to chain operations
-         *
-         * @deprecated Use the object parameter `sharpen({sigma, m1, m2, x1, y2, y3})` instead
-         */
-        sharpen(sigma?: number, flat?: number, jagged?: number): Sharp;
-
         /**
          * Apply median filter. When used without parameters the default window is 3x3.
          * @param size square mask size: size x size (optional, default 3)
@@ -693,6 +677,13 @@ declare namespace sharp {
          */
         toBuffer(options: { resolveWithObject: true }): Promise<{ data: Buffer; info: OutputInfo }>;
 
+        /**
+         * Write output to a Uint8Array backed by a transferable ArrayBuffer. JPEG, PNG, WebP, AVIF, TIFF, GIF and RAW output are supported.
+         * By default, the format will match the input image, except SVG input which becomes PNG output.
+         * @returns A promise that resolves with an object containing the Uint8Array data and an info object containing the output image format, size (bytes), width, height and channels
+         */
+        toUint8Array(): Promise<{ data: Uint8Array; info: OutputInfo }>;
+
         /**
          * Keep all EXIF metadata from the input image in the output image.
          * EXIF metadata is unsupported for TIFF output.
@@ -849,7 +840,7 @@ declare namespace sharp {
          * @returns A sharp instance that can be used to chain operations
          */
         toFormat(
-            format: keyof FormatEnum | AvailableFormatInfo,
+            format: keyof FormatEnum | AvailableFormatInfo | "avif",
             options?:
                 | OutputOptions
                 | JpegOptions
@@ -903,7 +894,7 @@ declare namespace sharp {
          *  - sharp.gravity: north, northeast, east, southeast, south, southwest, west, northwest, center or centre.
          *  - sharp.strategy: cover only, dynamically crop using either the entropy or attention strategy. Some of these values are based on the object-position CSS property.
          *
-         * The experimental strategy-based approach resizes so one dimension is at its target length then repeatedly ranks edge regions,
+         * The strategy-based approach resizes so one dimension is at its target length then repeatedly ranks edge regions,
          * discarding the edge with the lowest score based on the selected strategy.
          *  - entropy: focus on the region with the highest Shannon entropy.
          *  - attention: focus on the region with the highest luminance frequency, colour saturation and presence of skin tones.
@@ -992,14 +983,6 @@ declare namespace sharp {
          *  'none' (least), 'truncated', 'error' or 'warning' (most), highers level imply lower levels, invalid metadata will always abort. (optional, default 'warning')
          */
         failOn?: FailOnOptions | undefined;
-        /**
-         * By default halt processing and raise an error when loading invalid images.
-         * Set this flag to false if you'd rather apply a "best effort" to decode images,
-         * even if the data is corrupt or invalid. (optional, default true)
-         *
-         * @deprecated Use `failOn` instead
-         */
-        failOnError?: boolean | undefined;
         /**
          * Do not process input images where the number of pixels (width x height) exceeds this limit.
          * Assumes image dimensions contained in the input metadata can be trusted.
@@ -1028,11 +1011,11 @@ declare namespace sharp {
         openSlide?: OpenSlideInputOptions | undefined;
         /** JPEG 2000 specific input options */
         jp2?: Jp2InputOptions | undefined;
-        /** Deprecated: use tiff.subifd instead */
+        /** @deprecated Use {@link SharpOptions.tiff} instead */
         subifd?: number | undefined;
-        /** Deprecated: use pdf.background instead */
+        /** @deprecated Use {@link SharpOptions.pdf} instead */
         pdfBackground?: Colour | Color | undefined;
-        /** Deprecated: use openSlide.level instead */
+        /** @deprecated Use {@link SharpOptions.openSlide} instead */
         level?: number | 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;
@@ -1184,6 +1167,8 @@ declare namespace sharp {
 
     type HeifCompression = 'av1' | 'hevc';
 
+    type HeifTune = 'iq' | 'ssim' | 'psnr';
+
     type Unit = 'inch' | 'cm';
 
     interface WriteableMetadata {
@@ -1277,6 +1262,8 @@ declare namespace sharp {
         formatMagick?: string | undefined;
         /** Array of keyword/text pairs representing PNG text blocks, if present. */
         comments?: CommentsMetadata[] | undefined;
+        /** HDR gain map, if present */
+        gainMap?: GainMapMetadata | undefined;
     }
 
     interface LevelMetadata {
@@ -1289,16 +1276,21 @@ declare namespace sharp {
         text: string;
     }
 
+    interface GainMapMetadata {
+        /** JPEG image */
+        image: Buffer;
+    }
+
     interface Stats {
         /** Array of channel statistics for each channel in the image. */
         channels: ChannelStats[];
         /** Value to identify if the image is opaque or transparent, based on the presence and use of alpha channel */
         isOpaque: boolean;
-        /** Histogram-based estimation of greyscale entropy, discarding alpha channel if any (experimental) */
+        /** Histogram-based estimation of greyscale entropy, discarding alpha channel if any */
         entropy: number;
-        /** Estimation of greyscale sharpness based on the standard deviation of a Laplacian convolution, discarding alpha channel if any (experimental) */
+        /** Estimation of greyscale sharpness based on the standard deviation of a Laplacian convolution, discarding alpha channel if any */
         sharpness: number;
-        /** Object containing most dominant sRGB colour based on a 4096-bin 3D histogram (experimental) */
+        /** Object containing most dominant sRGB colour based on a 4096-bin 3D histogram */
         dominant: { r: number; g: number; b: number };
     }
 
@@ -1404,11 +1396,13 @@ declare namespace sharp {
         /** Level of CPU effort to reduce file size, integer 0-6 (optional, default 4) */
         effort?: number | undefined;
         /** Prevent use of animation key frames to minimise file size (slow) (optional, default false) */
-        minSize?: boolean;
+        minSize?: boolean | undefined;
         /** Allow mixture of lossy and lossless animation frames (slow) (optional, default false) */
-        mixed?: boolean;
+        mixed?: boolean | undefined;
         /** Preset options: one of default, photo, picture, drawing, icon, text (optional, default 'default') */
         preset?: keyof PresetEnum | undefined;
+        /** Preserve the colour data in transparent pixels (optional, default false) */
+        exact?: boolean | undefined;
     }
 
     interface AvifOptions extends OutputOptions {
@@ -1422,6 +1416,8 @@ declare namespace sharp {
         chromaSubsampling?: string | undefined;
         /** Set bitdepth to 8, 10 or 12 bit (optional, default 8) */
         bitdepth?: 8 | 10 | 12 | undefined;
+        /** Tune output for a quality metric, one of 'iq', 'ssim' or 'psnr' (optional, default 'iq') */
+        tune?: HeifTune | undefined;
     }
 
     interface HeifOptions extends OutputOptions {
@@ -1437,6 +1433,8 @@ declare namespace sharp {
         chromaSubsampling?: string | undefined;
         /** Set bitdepth to 8, 10 or 12 bit (optional, default 8) */
         bitdepth?: 8 | 10 | 12 | undefined;
+        /** Tune output for a quality metric, one of 'ssim', 'psnr' or 'iq' (optional, default 'ssim') */
+        tune?: HeifTune | undefined;
     }
 
     interface GifOptions extends OutputOptions, AnimationOptions {
@@ -1481,8 +1479,8 @@ declare namespace sharp {
         xres?: number | undefined;
         /** Vertical resolution in pixels/mm (optional, default 1.0) */
         yres?: number | undefined;
-        /** Reduce bitdepth to 1, 2 or 4 bit (optional, default 8) */
+        /** Reduce bitdepth to 1, 2 or 4 bit (optional) */
-        bitdepth?: 1 | 2 | 4 | 8 | undefined;
+        bitdepth?: 1 | 2 | 4 | undefined;
         /** Write 1-bit images as miniswhite (optional, default false) */
         miniswhite?: boolean | undefined;
         /** Resolution unit options: inch, cm (optional, default 'inch') */
@@ -1608,6 +1606,8 @@ declare namespace sharp {
         threshold?: number | undefined;
         /** Does the input more closely resemble line art (e.g. vector) rather than being photographic? (optional, default false) */
         lineArt?: boolean | undefined;
+        /** Leave a margin around trimmed content, value is in pixels. (optional, default 0) */
+        margin?: number | undefined;
     }
 
     interface RawOptions {
@@ -1913,16 +1913,13 @@ declare namespace sharp {
     }
 
     interface FormatEnum {
-        avif: AvailableFormatInfo;
         dcraw: AvailableFormatInfo;
         dz: AvailableFormatInfo;
         exr: AvailableFormatInfo;
         fits: AvailableFormatInfo;
         gif: AvailableFormatInfo;
         heif: AvailableFormatInfo;
-        input: AvailableFormatInfo;
         jpeg: AvailableFormatInfo;
-        jpg: AvailableFormatInfo;
         jp2: AvailableFormatInfo;
         jxl: AvailableFormatInfo;
         magick: AvailableFormatInfo;
@@ -1934,8 +1931,7 @@ declare namespace sharp {
         raw: AvailableFormatInfo;
         svg: AvailableFormatInfo;
         tiff: AvailableFormatInfo;
-        tif: AvailableFormatInfo;
+        vips: AvailableFormatInfo;
-        v: AvailableFormatInfo;
         webp: AvailableFormatInfo;
     }
 

lib/input.js

@@ -30,7 +30,7 @@ const inputStreamParameters = [
   // Format-specific
   'jp2', 'openSlide', 'pdf', 'raw', 'svg', 'tiff',
   // Deprecated
-  'failOnError', 'openSlideLevel', 'pdfBackground', 'tiffSubifd'
+  'openSlideLevel', 'pdfBackground', 'tiffSubifd'
 ];
 
 /**
@@ -106,14 +106,6 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
     }`);
   }
   if (is.object(inputOptions)) {
-    // Deprecated: failOnError
-    if (is.defined(inputOptions.failOnError)) {
-      if (is.bool(inputOptions.failOnError)) {
-        inputDescriptor.failOn = inputOptions.failOnError ? 'warning' : 'none';
-      } else {
-        throw is.invalidParameterError('failOnError', 'boolean', inputOptions.failOnError);
-      }
-    }
     // failOn
     if (is.defined(inputOptions.failOn)) {
       if (is.string(inputOptions.failOn) && is.inArray(inputOptions.failOn, ['none', 'truncated', 'error', 'warning'])) {
@@ -574,7 +566,8 @@ function _isStreamInput () {
  *
  * A `Promise` is returned when `callback` is not provided.
  *
- * - `format`: Name of decoder used to decompress image data e.g. `jpeg`, `png`, `webp`, `gif`, `svg`
+ * - `format`: Name of decoder used to parse image e.g. `jpeg`, `png`, `webp`, `gif`, `svg`, `heif`, `tiff`
+ * - `mediaType`: Media Type (MIME Type) e.g. `image/jpeg`, `image/png`, `image/svg+xml`, `image/avif`
  * - `size`: Total size of image in bytes, for Stream and Buffer input only
  * - `width`: Number of pixels wide (EXIF orientation is not taken into consideration, see example below)
  * - `height`: Number of pixels high (EXIF orientation is not taken into consideration, see example below)
@@ -607,6 +600,7 @@ function _isStreamInput () {
  * - `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.
+ * - `gainMap.image`: HDR gain map, if present, as compressed JPEG image.
  *
  * @example
  * const metadata = await sharp(input).metadata();

lib/operation.js

@@ -259,45 +259,18 @@ function affine (matrix, options) {
  *   })
  *   .toBuffer();
  *
- * @param {Object|number} [options] - if present, is an Object with attributes
+ * @param {Object} [options] - if present, is an Object with attributes
  * @param {number} [options.sigma] - the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`, between 0.000001 and 10
  * @param {number} [options.m1=1.0] - the level of sharpening to apply to "flat" areas, between 0 and 1000000
  * @param {number} [options.m2=2.0] - the level of sharpening to apply to "jagged" areas, between 0 and 1000000
  * @param {number} [options.x1=2.0] - threshold between "flat" and "jagged", between 0 and 1000000
  * @param {number} [options.y2=10.0] - maximum amount of brightening, between 0 and 1000000
  * @param {number} [options.y3=20.0] - maximum amount of darkening, between 0 and 1000000
- * @param {number} [flat] - (deprecated) see `options.m1`.
- * @param {number} [jagged] - (deprecated) see `options.m2`.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
-function sharpen (options, flat, jagged) {
+function sharpen (options) {
-  if (!is.defined(options)) {
+  if (is.plainObject(options)) {
-    // No arguments: default to mild sharpen
-    this.options.sharpenSigma = -1;
-  } else if (is.bool(options)) {
-    // Deprecated boolean argument: apply mild sharpen?
-    this.options.sharpenSigma = options ? -1 : 0;
-  } else if (is.number(options) && is.inRange(options, 0.01, 10000)) {
-    // Deprecated numeric argument: specific sigma
-    this.options.sharpenSigma = options;
-    // Deprecated control over flat areas
-    if (is.defined(flat)) {
-      if (is.number(flat) && is.inRange(flat, 0, 10000)) {
-        this.options.sharpenM1 = flat;
-      } else {
-        throw is.invalidParameterError('flat', 'number between 0 and 10000', flat);
-      }
-    }
-    // Deprecated control over jagged areas
-    if (is.defined(jagged)) {
-      if (is.number(jagged) && is.inRange(jagged, 0, 10000)) {
-        this.options.sharpenM2 = jagged;
-      } else {
-        throw is.invalidParameterError('jagged', 'number between 0 and 10000', jagged);
-      }
-    }
-  } else if (is.plainObject(options)) {
     if (is.number(options.sigma) && is.inRange(options.sigma, 0.000001, 10)) {
       this.options.sharpenSigma = options.sigma;
     } else {
@@ -339,7 +312,7 @@ function sharpen (options, flat, jagged) {
       }
     }
   } else {
-    throw is.invalidParameterError('sigma', 'number between 0.01 and 10000', options);
+    this.options.sharpenSigma = -1;
   }
   return this;
 }
@@ -510,8 +483,6 @@ function flatten (options) {
  *
  * Existing alpha channel values for non-white pixels remain unchanged.
  *
- * This feature is experimental and the API may change.
- *
  * @since 0.32.1
  *
  * @example

lib/output.js

@@ -76,7 +76,7 @@ function toFile (fileOut, callback) {
     err = new Error('Missing output file path');
   } else if (is.string(this.options.input.file) && path.resolve(this.options.input.file) === path.resolve(fileOut)) {
     err = new Error('Cannot use same file for input and output');
-  } else if (jp2Regex.test(path.extname(fileOut)) && !this.constructor.format.jp2k.output.file) {
+  } else if (jp2Regex.test(path.extname(fileOut)) && !this.constructor.format.jp2.output.file) {
     err = errJp2Save();
   }
   if (err) {
@@ -164,6 +164,41 @@ function toBuffer (options, callback) {
   return this._pipeline(is.fn(options) ? options : callback, stack);
 }
 
+/**
+ * Write output to a `Uint8Array` backed by a transferable `ArrayBuffer`.
+ * JPEG, PNG, WebP, AVIF, TIFF, GIF and raw pixel data output are supported.
+ *
+ * Use {@link #toformat toFormat} or one of the format-specific functions such as {@link #jpeg jpeg}, {@link #png png} etc. to set the output format.
+ *
+ * If no explicit format is set, the output format will match the input image, except SVG input which becomes PNG output.
+ *
+ * By default all metadata will be removed, which includes EXIF-based orientation.
+ * See {@link #keepexif keepExif} and similar methods for control over this.
+ *
+ * Resolves with an `Object` containing:
+ * - `data` is the output image as a `Uint8Array` backed by a transferable `ArrayBuffer`.
+ * - `info` contains properties relating to the output image such as `width` and `height`.
+ *
+ * @since v0.35.0
+ *
+ * @example
+ * const { data, info } = await sharp(input).toUint8Array();
+ *
+ * @example
+ * const { data } = await sharp(input)
+ *   .avif()
+ *   .toUint8Array();
+ * const base64String = data.toBase64();
+ *
+ * @returns {Promise<{ data: Uint8Array, info: Object }>}
+ */
+function toUint8Array () {
+  this.options.resolveWithObject = true;
+  this.options.typedArrayOut = true;
+  const stack = Error();
+  return this._pipeline(null, stack);
+}
+
 /**
  * Keep all EXIF metadata from the input image in the output image.
  *
@@ -319,6 +354,30 @@ function withIccProfile (icc, options) {
   return this;
 }
 
+/**
+ * If the input contains gain map metadata, use it to convert the main image to HDR (High Dynamic Range) before further processing.
+ * The input gain map is discarded.
+ *
+ * If the output is JPEG, generate and attach a new ISO 21496-1 gain map.
+ * JPEG output options other than `quality` are ignored.
+ *
+ * This feature is experimental and the API may change.
+ *
+ * @since 0.35.0
+ *
+ * @example
+ * const outputWithGainMap = await sharp(inputWithGainMap)
+ *   .withGainMap()
+ *   .toBuffer();
+ *
+ * @returns {Sharp}
+ */
+function withGainMap() {
+  this.options.withGainMap = true;
+  this.options.colourspace = 'scrgb';
+  return this;
+}
+
 /**
  * Keep XMP metadata from the input image in the output image.
  *
@@ -690,6 +749,7 @@ function png (options) {
  * @param {number|number[]} [options.delay] - delay(s) between animation frames (in milliseconds)
  * @param {boolean} [options.minSize=false] - prevent use of animation key frames to minimise file size (slow)
  * @param {boolean} [options.mixed=false] - allow mixture of lossy and lossless animation frames (slow)
+ * @param {boolean} [options.exact=false] - preserve the colour data in transparent pixels
  * @param {boolean} [options.force=true] - force WebP output, otherwise attempt to use input format
  * @returns {Sharp}
  * @throws {Error} Invalid options
@@ -742,6 +802,9 @@ function webp (options) {
     if (is.defined(options.mixed)) {
       this._setBooleanOption('webpMixed', options.mixed);
     }
+    if (is.defined(options.exact)) {
+      this._setBooleanOption('webpExact', options.exact);
+    }
   }
   trySetAnimationOptions(options, this.options);
   return this._updateFormatOut('webp', options);
@@ -887,7 +950,7 @@ function gif (options) {
  */
 function jp2 (options) {
   /* node:coverage ignore next 41 */
-  if (!this.constructor.format.jp2k.output.buffer) {
+  if (!this.constructor.format.jp2.output.buffer) {
     throw errJp2Save();
   }
   if (is.object(options)) {
@@ -992,7 +1055,7 @@ function trySetAnimationOptions (source, target) {
  * @param {number} [options.xres=1.0] - horizontal resolution in pixels/mm
  * @param {number} [options.yres=1.0] - vertical resolution in pixels/mm
  * @param {string} [options.resolutionUnit='inch'] - resolution unit options: inch, cm
- * @param {number} [options.bitdepth=8] - reduce bitdepth to 1, 2 or 4 bit
+ * @param {number} [options.bitdepth=0] - reduce bitdepth to 1, 2 or 4 bit
  * @param {boolean} [options.miniswhite=false] - write 1-bit images as miniswhite
  * @returns {Sharp}
  * @throws {Error} Invalid options
@@ -1007,10 +1070,10 @@ function tiff (options) {
       }
     }
     if (is.defined(options.bitdepth)) {
-      if (is.integer(options.bitdepth) && is.inArray(options.bitdepth, [1, 2, 4, 8])) {
+      if (is.integer(options.bitdepth) && is.inArray(options.bitdepth, [1, 2, 4])) {
         this.options.tiffBitdepth = options.bitdepth;
       } else {
-        throw is.invalidParameterError('bitdepth', '1, 2, 4 or 8', options.bitdepth);
+        throw is.invalidParameterError('bitdepth', '1, 2 or 4', options.bitdepth);
       }
     }
     // tiling
@@ -1092,8 +1155,7 @@ function tiff (options) {
  * AVIF image sequences are not supported.
  * Prebuilt binaries support a bitdepth of 8 only.
  *
- * This feature is experimental on the Windows ARM64 platform
+ * When using Windows ARM64, this feature requires a CPU with ARM64v8.4 or later.
- * and requires a CPU with ARM64v8.4 or later.
  *
  * @example
  * const data = await sharp(input)
@@ -1113,11 +1175,13 @@ function tiff (options) {
  * @param {number} [options.effort=4] - CPU effort, between 0 (fastest) and 9 (slowest)
  * @param {string} [options.chromaSubsampling='4:4:4'] - set to '4:2:0' to use chroma subsampling
  * @param {number} [options.bitdepth=8] - set bitdepth to 8, 10 or 12 bit
+ * @param {string} [options.tune='iq'] - tune output for a quality metric, one of 'iq' (default), 'ssim' (default when lossless) or 'psnr'
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
 function avif (options) {
-  return this.heif({ ...options, compression: 'av1' });
+  const tune = is.object(options) && is.defined(options.tune) ? options.tune : 'iq';
+  return this.heif({ ...options, compression: 'av1', tune });
 }
 
 /**
@@ -1140,6 +1204,7 @@ function avif (options) {
  * @param {number} [options.effort=4] - CPU effort, between 0 (fastest) and 9 (slowest)
  * @param {string} [options.chromaSubsampling='4:4:4'] - set to '4:2:0' to use chroma subsampling
  * @param {number} [options.bitdepth=8] - set bitdepth to 8, 10 or 12 bit
+ * @param {string} [options.tune='ssim'] - tune output for a quality metric, one of 'ssim' (default), 'psnr' or 'iq'
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -1188,6 +1253,17 @@ function heif (options) {
         throw is.invalidParameterError('bitdepth', '8, 10 or 12', options.bitdepth);
       }
     }
+    if (is.defined(options.tune)) {
+      if (is.string(options.tune) && is.inArray(options.tune, ['iq', 'ssim', 'psnr'])) {
+        if (this.options.heifLossless && options.tune === 'iq') {
+          this.options.heifTune = 'ssim';
+        } else {
+          this.options.heifTune = options.tune;
+        }
+      } else {
+        throw is.invalidParameterError('tune', 'one of: psnr, ssim, iq', options.tune);
+      }
+    }
   } else {
     throw is.invalidParameterError('options', 'Object', options);
   }
@@ -1635,11 +1711,13 @@ module.exports = (Sharp) => {
     // Public
     toFile,
     toBuffer,
+    toUint8Array,
     keepExif,
     withExif,
     withExifMerge,
     keepIccProfile,
     withIccProfile,
+    withGainMap,
     keepXmp,
     withXmp,
     keepMetadata,

lib/resize.js

@@ -540,10 +540,19 @@ function extract (options) {
  *   })
  *   .toBuffer();
  *
+ * @example
+ * // Trim image leaving (up to) a 10 pixel margin around the trimmed content.
+ * const output = await sharp(input)
+ *   .trim({
+ *     margin: 10
+ *   })
+ *   .toBuffer();
+ *
  * @param {Object} [options]
  * @param {string|Object} [options.background='top-left pixel'] - Background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to that of the top-left pixel.
  * @param {number} [options.threshold=10] - Allowed difference from the above colour, a positive number.
  * @param {boolean} [options.lineArt=false] - Does the input more closely resemble line art (e.g. vector) rather than being photographic?
+ * @param {number} [options.margin=0] - Leave a margin around trimmed content, value is in pixels.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -564,6 +573,13 @@ function trim (options) {
       if (is.defined(options.lineArt)) {
         this._setBooleanOption('trimLineArt', options.lineArt);
       }
+      if (is.defined(options.margin)) {
+        if (is.integer(options.margin) && options.margin >= 0) {
+          this.options.trimMargin = options.margin;
+        } else {
+          throw is.invalidParameterError('margin', 'positive integer', options.margin);
+        }
+      }
     } else {
       throw is.invalidParameterError('trim', 'object', options);
     }

lib/sharp.js

@@ -7,12 +7,13 @@
 
 const { familySync, versionSync } = require('detect-libc');
 
+const { version } = require('../package.json');
 const { runtimePlatformArch, isUnsupportedNodeRuntime, prebuiltPlatforms, minimumLibvipsVersion } = require('./libvips');
 const runtimePlatform = runtimePlatformArch();
 
 const paths = [
-  `../src/build/Release/sharp-${runtimePlatform}.node`,
+  `../src/build/Release/sharp-${runtimePlatform}-${version}.node`,
-  '../src/build/Release/sharp-wasm32.node',
+  `../src/build/Release/sharp-wasm32-${version}.node`,
   `@img/sharp-${runtimePlatform}/sharp.node`,
   '@img/sharp-wasm32/sharp.node'
 ];
@@ -72,6 +73,7 @@ if (sharp) {
   } else {
     help.push(
       `- Manually install libvips >= ${minimumLibvipsVersion}`,
+      '    See https://sharp.pixelplumbing.com/install#building-from-source',
       '- Add experimental WebAssembly-based dependencies:',
       '    npm install --cpu=wasm32 sharp',
       '    npm install @img/sharp-wasm32'

lib/utility.js

@@ -24,7 +24,7 @@ const format = sharp.format();
 format.heif.output.alias = ['avif', 'heic'];
 format.jpeg.output.alias = ['jpe', 'jpg'];
 format.tiff.output.alias = ['tif'];
-format.jp2k.output.alias = ['j2c', 'j2k', 'jp2', 'jpx'];
+format.jp2.output.alias = ['j2c', 'j2k', 'jp2', 'jpx'];
 
 /**
  * An Object containing the available interpolators and their proper values

npm/darwin-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-darwin-arm64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with macOS 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-darwin-arm64": "1.2.4"
+    "@img/sharp-libvips-darwin-arm64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-darwin-arm64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "os": [
     "darwin"

npm/darwin-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-darwin-x64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with macOS x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-darwin-x64": "1.2.4"
+    "@img/sharp-libvips-darwin-x64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-darwin-x64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "os": [
     "darwin"

npm/from-local-build.js

@@ -44,9 +44,10 @@ cpSync(releaseDir, libDir, {
   }
 });
 
-// Generate README
+// Generate README and index.cjs
-const { name, description } = require(`./${platform}/package.json`);
+const { version, name, description } = require(`./${platform}/package.json`);
 writeFileSync(join(destDir, 'README.md'), `# \`${name}\`\n\n${description}.\n${licensing}`);
+writeFileSync(join(destDir, 'index.cjs'), `module.exports = require('./lib/sharp-${platform}-${version}.node');`);
 
 // Copy Apache-2.0 LICENSE
 copyFileSync(join(__dirname, '..', 'LICENSE'), join(destDir, 'LICENSE'));

npm/linux-arm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-arm",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (glibc) ARM (32-bit)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm": "1.2.4"
+    "@img/sharp-libvips-linux-arm": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linux-arm.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "glibc": ">=2.31"

npm/linux-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-arm64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (glibc) 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-arm64": "1.2.4"
+    "@img/sharp-libvips-linux-arm64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linux-arm64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "glibc": ">=2.26"

npm/linux-ppc64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-ppc64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (glibc) ppc64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-ppc64": "1.2.4"
+    "@img/sharp-libvips-linux-ppc64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linux-ppc64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "glibc": ">=2.36"

npm/linux-riscv64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-riscv64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (glibc) RISC-V 64-bit",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-riscv64": "1.2.4"
+    "@img/sharp-libvips-linux-riscv64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linux-riscv64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "glibc": ">=2.41"

npm/linux-s390x/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-s390x",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (glibc) s390x",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-s390x": "1.2.4"
+    "@img/sharp-libvips-linux-s390x": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linux-s390x.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "glibc": ">=2.36"

npm/linux-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linux-x64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (glibc) x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linux-x64": "1.2.4"
+    "@img/sharp-libvips-linux-x64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linux-x64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "glibc": ">=2.26"

npm/linuxmusl-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linuxmusl-arm64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (musl) 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-arm64": "1.2.4"
+    "@img/sharp-libvips-linuxmusl-arm64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linuxmusl-arm64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "musl": ">=1.2.2"

npm/linuxmusl-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-linuxmusl-x64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Linux (musl) x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,9 +15,10 @@
   },
   "preferUnplugged": true,
   "optionalDependencies": {
-    "@img/sharp-libvips-linuxmusl-x64": "1.2.4"
+    "@img/sharp-libvips-linuxmusl-x64": "1.3.0-rc.2"
   },
   "files": [
+    "index.cjs",
     "lib"
   ],
   "publishConfig": {
@@ -25,11 +26,11 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-linuxmusl-x64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
     "musl": ">=1.2.2"

npm/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "private": "true",
   "workspaces": [
     "darwin-arm64",

npm/wasm32/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-wasm32",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with wasm32",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -23,15 +23,15 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-wasm32.node.js",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json",
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "dependencies": {
-    "@emnapi/runtime": "^1.7.0"
+    "@emnapi/runtime": "^1.7.1"
   },
   "cpu": [
     "wasm32"

npm/win32-arm64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-arm64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Windows 64-bit ARM",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,6 +15,7 @@
   },
   "preferUnplugged": true,
   "files": [
+    "index.cjs",
     "lib",
     "versions.json"
   ],
@@ -23,12 +24,12 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-win32-arm64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json",
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "os": [
     "win32"

npm/win32-ia32/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@img/sharp-win32-ia32",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
-  "description": "Prebuilt sharp for use with Windows x86 (32-bit)",
+  "description": "Prebuilt sharp for use with Windows x86 (deprecated)",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
   "repository": {
@@ -15,6 +15,7 @@
   },
   "preferUnplugged": true,
   "files": [
+    "index.cjs",
     "lib",
     "versions.json"
   ],
@@ -23,12 +24,12 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-win32-ia32.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json",
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": "^20.9.0"
   },
   "os": [
     "win32"

npm/win32-x64/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@img/sharp-win32-x64",
-  "version": "0.34.5",
+  "version": "0.35.0-rc.0",
   "description": "Prebuilt sharp for use with Windows x64",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,6 +15,7 @@
   },
   "preferUnplugged": true,
   "files": [
+    "index.cjs",
     "lib",
     "versions.json"
   ],
@@ -23,12 +24,12 @@
   },
   "type": "commonjs",
   "exports": {
-    "./sharp.node": "./lib/sharp-win32-x64.node",
+    "./sharp.node": "./index.cjs",
     "./package": "./package.json",
     "./versions": "./versions.json"
   },
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "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": "0.34.5",
+  "version": "0.35.0-rc.0",
   "author": "Lovell Fuller <npm@lovell.info>",
   "homepage": "https://sharp.pixelplumbing.com",
   "contributors": [
@@ -89,12 +89,12 @@
     "Lachlan Newman <lachnewman007@gmail.com>",
     "Dennis Beatty <dennis@dcbeatty.com>",
     "Ingvar Stepanyan <me@rreverser.com>",
-    "Don Denton <don@happycollision.com>"
+    "Don Denton <don@happycollision.com>",
+    "Dmytro Tiapukhin <cool.gegeg@gmail.com>"
   ],
   "scripts": {
     "build": "node install/build.js",
-    "install": "node install/check.js || npm run build",
+    "clean": "rm -rf src/build/ test/fixtures/output.*",
-    "clean": "rm -rf src/build/ .nyc_output/ coverage/ test/fixtures/output.*",
     "test": "npm run lint && npm run test-unit",
     "lint": "npm run lint-cpp && npm run lint-js && npm run lint-types",
     "lint-cpp": "cpplint --quiet src/*.h src/*.cc",
@@ -144,57 +144,56 @@
     "semver": "^7.7.3"
   },
   "optionalDependencies": {
-    "@img/sharp-darwin-arm64": "0.34.5",
+    "@img/sharp-darwin-arm64": "0.35.0-rc.0",
-    "@img/sharp-darwin-x64": "0.34.5",
+    "@img/sharp-darwin-x64": "0.35.0-rc.0",
-    "@img/sharp-libvips-darwin-arm64": "1.2.4",
+    "@img/sharp-libvips-darwin-arm64": "1.3.0-rc.2",
-    "@img/sharp-libvips-darwin-x64": "1.2.4",
+    "@img/sharp-libvips-darwin-x64": "1.3.0-rc.2",
-    "@img/sharp-libvips-linux-arm": "1.2.4",
+    "@img/sharp-libvips-linux-arm": "1.3.0-rc.2",
-    "@img/sharp-libvips-linux-arm64": "1.2.4",
+    "@img/sharp-libvips-linux-arm64": "1.3.0-rc.2",
-    "@img/sharp-libvips-linux-ppc64": "1.2.4",
+    "@img/sharp-libvips-linux-ppc64": "1.3.0-rc.2",
-    "@img/sharp-libvips-linux-riscv64": "1.2.4",
+    "@img/sharp-libvips-linux-riscv64": "1.3.0-rc.2",
-    "@img/sharp-libvips-linux-s390x": "1.2.4",
+    "@img/sharp-libvips-linux-s390x": "1.3.0-rc.2",
-    "@img/sharp-libvips-linux-x64": "1.2.4",
+    "@img/sharp-libvips-linux-x64": "1.3.0-rc.2",
-    "@img/sharp-libvips-linuxmusl-arm64": "1.2.4",
+    "@img/sharp-libvips-linuxmusl-arm64": "1.3.0-rc.2",
-    "@img/sharp-libvips-linuxmusl-x64": "1.2.4",
+    "@img/sharp-libvips-linuxmusl-x64": "1.3.0-rc.2",
-    "@img/sharp-linux-arm": "0.34.5",
+    "@img/sharp-linux-arm": "0.35.0-rc.0",
-    "@img/sharp-linux-arm64": "0.34.5",
+    "@img/sharp-linux-arm64": "0.35.0-rc.0",
-    "@img/sharp-linux-ppc64": "0.34.5",
+    "@img/sharp-linux-ppc64": "0.35.0-rc.0",
-    "@img/sharp-linux-riscv64": "0.34.5",
+    "@img/sharp-linux-riscv64": "0.35.0-rc.0",
-    "@img/sharp-linux-s390x": "0.34.5",
+    "@img/sharp-linux-s390x": "0.35.0-rc.0",
-    "@img/sharp-linux-x64": "0.34.5",
+    "@img/sharp-linux-x64": "0.35.0-rc.0",
-    "@img/sharp-linuxmusl-arm64": "0.34.5",
+    "@img/sharp-linuxmusl-arm64": "0.35.0-rc.0",
-    "@img/sharp-linuxmusl-x64": "0.34.5",
+    "@img/sharp-linuxmusl-x64": "0.35.0-rc.0",
-    "@img/sharp-wasm32": "0.34.5",
+    "@img/sharp-wasm32": "0.35.0-rc.0",
-    "@img/sharp-win32-arm64": "0.34.5",
+    "@img/sharp-win32-arm64": "0.35.0-rc.0",
-    "@img/sharp-win32-ia32": "0.34.5",
+    "@img/sharp-win32-ia32": "0.35.0-rc.0",
-    "@img/sharp-win32-x64": "0.34.5"
+    "@img/sharp-win32-x64": "0.35.0-rc.0"
   },
   "devDependencies": {
-    "@biomejs/biome": "^2.3.4",
+    "@biomejs/biome": "^2.3.10",
     "@cpplint/cli": "^0.1.0",
-    "@emnapi/runtime": "^1.7.0",
+    "@emnapi/runtime": "^1.7.1",
-    "@img/sharp-libvips-dev": "1.2.4",
+    "@img/sharp-libvips-dev": "1.3.0-rc.2",
-    "@img/sharp-libvips-dev-wasm32": "1.2.4",
+    "@img/sharp-libvips-dev-wasm32": "1.3.0-rc.2",
-    "@img/sharp-libvips-win32-arm64": "1.2.4",
+    "@img/sharp-libvips-win32-arm64": "1.3.0-rc.2",
-    "@img/sharp-libvips-win32-ia32": "1.2.4",
+    "@img/sharp-libvips-win32-ia32": "1.3.0-rc.2",
-    "@img/sharp-libvips-win32-x64": "1.2.4",
+    "@img/sharp-libvips-win32-x64": "1.3.0-rc.2",
     "@types/node": "*",
-    "emnapi": "^1.7.0",
+    "emnapi": "^1.7.1",
-    "exif-reader": "^2.0.2",
+    "exif-reader": "^2.0.3",
     "extract-zip": "^2.0.1",
     "icc": "^3.0.0",
-    "jsdoc-to-markdown": "^9.1.3",
     "node-addon-api": "^8.5.0",
-    "node-gyp": "^11.5.0",
+    "node-gyp": "^12.1.0",
     "tar-fs": "^3.1.1",
     "tsd": "^0.33.0"
   },
   "license": "Apache-2.0",
   "engines": {
-    "node": "^18.17.0 || ^20.3.0 || >=21.0.0"
+    "node": ">=20.9.0"
   },
   "config": {
-    "libvips": ">=8.17.3"
+    "libvips": ">=8.18.0"
   },
   "funding": {
     "url": "https://opencollective.com/libvips"

src/binding.gyp

@@ -5,6 +5,7 @@
   'variables': {
     'vips_version': '<!(node -p "require(\'../lib/libvips\').minimumLibvipsVersion")',
     'platform_and_arch': '<!(node -p "require(\'../lib/libvips\').buildPlatformArch()")',
+    'sharp_version': '<!(node -p "require(\'../package.json\').version")',
     'sharp_libvips_version': '<!(node -p "require(\'../package.json\').optionalDependencies[\'@img/sharp-libvips-<(platform_and_arch)\']")',
     'sharp_libvips_yarn_locator': '<!(node -p "require(\'../lib/libvips\').yarnLocator()")',
     'sharp_libvips_include_dir': '<!(node -p "require(\'../lib/libvips\').buildSharpLibvipsIncludeDir()")',
@@ -20,6 +21,7 @@
         'defines': [
           '_VIPS_PUBLIC=__declspec(dllexport)',
           '_ALLOW_KEYWORD_MACROS',
+          '_HAS_EXCEPTIONS=1',
           'G_DISABLE_ASSERT',
           'G_DISABLE_CAST_CHECKS',
           'G_DISABLE_CHECKS'
@@ -81,7 +83,7 @@
       }]
     ]
   }, {
-    'target_name': 'sharp-<(platform_and_arch)',
+    'target_name': 'sharp-<(platform_and_arch)-<(sharp_version)',
     'defines': [
       'G_DISABLE_ASSERT',
       'G_DISABLE_CAST_CHECKS',
@@ -120,7 +122,7 @@
     'conditions': [
       ['use_global_libvips == "true"', {
         # Use pkg-config for include and lib
-        'include_dirs': ['<!@(PKG_CONFIG_PATH="<(pkg_config_path)" pkg-config --cflags-only-I vips-cpp vips glib-2.0 | sed s\/-I//g)'],
+        'include_dirs': ['<!@(PKG_CONFIG_PATH="<(pkg_config_path)" pkg-config --cflags-only-I vips-cpp vips glib-2.0 | sed s/-I//g)'],
         'libraries': ['<!@(PKG_CONFIG_PATH="<(pkg_config_path)" pkg-config --libs vips-cpp)'],
         'defines': [
           'SHARP_USE_GLOBAL_LIBVIPS'
@@ -147,7 +149,8 @@
           ['OS == "win"', {
             'defines': [
               '_ALLOW_KEYWORD_MACROS',
-              '_FILE_OFFSET_BITS=64'
+              '_FILE_OFFSET_BITS=64',
+              '_HAS_EXCEPTIONS=1'
             ],
             'link_settings': {
               'libraries': [
@@ -282,7 +285,7 @@
     'target_name': 'copy-dll',
     'type': 'none',
     'dependencies': [
-      'sharp-<(platform_and_arch)'
+      'sharp-<(platform_and_arch)-<(sharp_version)'
     ],
     'conditions': [
       ['OS == "win"', {

src/common.cc

@@ -289,6 +289,7 @@ namespace sharp {
       case ImageType::JXL: id = "jxl"; break;
       case ImageType::RAD: id = "rad"; break;
       case ImageType::DCRAW: id = "dcraw"; break;
+      case ImageType::UHDR: id = "uhdr"; break;
       case ImageType::VIPS: id = "vips"; break;
       case ImageType::RAW: id = "raw"; break;
       case ImageType::UNKNOWN: id = "unknown"; break;
@@ -339,6 +340,9 @@ namespace sharp {
     { "VipsForeignLoadRadBuffer", ImageType::RAD },
     { "VipsForeignLoadDcRawFile", ImageType::DCRAW },
     { "VipsForeignLoadDcRawBuffer", ImageType::DCRAW },
+    { "VipsForeignLoadUhdr", ImageType::UHDR },
+    { "VipsForeignLoadUhdrFile", ImageType::UHDR },
+    { "VipsForeignLoadUhdrBuffer", ImageType::UHDR },
     { "VipsForeignLoadVips", ImageType::VIPS },
     { "VipsForeignLoadVipsFile", ImageType::VIPS },
     { "VipsForeignLoadRaw", ImageType::RAW }
@@ -356,6 +360,9 @@ namespace sharp {
         imageType = it->second;
       }
     }
+    if (imageType == ImageType::UHDR) {
+      imageType = ImageType::JPEG;
+    }
     return imageType;
   }
 
@@ -375,6 +382,9 @@ namespace sharp {
         imageType = ImageType::MISSING;
       }
     }
+    if (imageType == ImageType::UHDR) {
+      imageType = ImageType::JPEG;
+    }
     return imageType;
   }
 
@@ -416,7 +426,7 @@ namespace sharp {
     }
     if (ImageTypeSupportsPage(imageType)) {
       option->set("n", descriptor->pages);
-      option->set("page", descriptor->page);
+      option->set("page", std::max(0, descriptor->page));
     }
     switch (imageType) {
       case ImageType::SVG:
@@ -446,6 +456,22 @@ namespace sharp {
     return option;
   }
 
+  /*
+    Should HEIF image be re-opened using the primary item?
+  */
+  static bool HeifPrimaryPageReopen(VImage image, InputDescriptor *descriptor) {
+    if (image.get_typeof(VIPS_META_N_PAGES) == G_TYPE_INT && image.get_typeof("heif-primary") == G_TYPE_INT) {
+      if (image.get_int(VIPS_META_N_PAGES) > 1 && descriptor->pages == 1 && descriptor->page == -1) {
+        int const pagePrimary = image.get_int("heif-primary");
+        if (pagePrimary != 0) {
+          descriptor->page = pagePrimary;
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
   /*
     Open an image from the given InputDescriptor (filesystem, compressed buffer, raw pixel data)
   */
@@ -480,12 +506,15 @@ namespace sharp {
             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);
+            } else if (imageType == ImageType::HEIF && HeifPrimaryPageReopen(image, descriptor)) {
+              option = GetOptionsForImageType(imageType, descriptor);
+              image = VImage::new_from_buffer(descriptor->buffer, descriptor->bufferLength, nullptr, option);
             }
-          } catch (vips::VError const &err) {
+          } catch (std::runtime_error const &err) {
-            throw vips::VError(std::string("Input buffer has corrupt header: ") + err.what());
+            throw std::runtime_error(std::string("Input buffer has corrupt header: ") + err.what());
           }
         } else {
-          throw vips::VError("Input buffer contains unsupported image format");
+          throw std::runtime_error("Input buffer contains unsupported image format");
         }
       }
     } else {
@@ -556,10 +585,10 @@ namespace sharp {
         imageType = DetermineImageType(descriptor->file.data());
         if (imageType == ImageType::MISSING) {
           if (descriptor->file.find("<svg") != std::string::npos) {
-            throw vips::VError("Input file is missing, did you mean "
+            throw std::runtime_error("Input file is missing, did you mean "
               "sharp(Buffer.from('" + descriptor->file.substr(0, 8) + "...')?");
           }
-          throw vips::VError("Input file is missing: " + descriptor->file);
+          throw std::runtime_error("Input file is missing: " + descriptor->file);
         }
         if (imageType != ImageType::UNKNOWN) {
           try {
@@ -567,12 +596,15 @@ namespace sharp {
             image = VImage::new_from_file(descriptor->file.data(), option);
             if (imageType == ImageType::SVG || imageType == ImageType::PDF || imageType == ImageType::MAGICK) {
               image = SetDensity(image, descriptor->density);
+            } else if (imageType == ImageType::HEIF && HeifPrimaryPageReopen(image, descriptor)) {
+              option = GetOptionsForImageType(imageType, descriptor);
+              image = VImage::new_from_file(descriptor->file.data(), option);
             }
-          } catch (vips::VError const &err) {
+          } catch (std::runtime_error const &err) {
-            throw vips::VError(std::string("Input file has corrupt header: ") + err.what());
+            throw std::runtime_error(std::string("Input file has corrupt header: ") + err.what());
           }
         } else {
-          throw vips::VError("Input file contains unsupported image format");
+          throw std::runtime_error("Input file contains unsupported image format");
         }
       }
     }
@@ -580,7 +612,7 @@ namespace sharp {
     // Limit input images to a given number of pixels, where pixels = width * height
     if (descriptor->limitInputPixels > 0 &&
       static_cast<uint64_t>(image.width()) * image.height() > descriptor->limitInputPixels) {
-      throw vips::VError("Input image exceeds pixel limit");
+      throw std::runtime_error("Input image exceeds pixel limit");
     }
     return std::make_tuple(image, imageType);
   }
@@ -756,19 +788,19 @@ namespace sharp {
       : image.height();
     if (imageType == ImageType::JPEG) {
       if (image.width() > 65535 || height > 65535) {
-        throw vips::VError("Processed image is too large for the JPEG format");
+        throw std::runtime_error("Processed image is too large for the JPEG format");
       }
     } else if (imageType == ImageType::WEBP) {
       if (image.width() > 16383 || height > 16383) {
-        throw vips::VError("Processed image is too large for the WebP format");
+        throw std::runtime_error("Processed image is too large for the WebP format");
       }
     } else if (imageType == ImageType::GIF) {
       if (image.width() > 65535 || height > 65535) {
-        throw vips::VError("Processed image is too large for the GIF format");
+        throw std::runtime_error("Processed image is too large for the GIF format");
       }
     } else if (imageType == ImageType::HEIF) {
       if (image.width() > 16384 || height > 16384) {
-        throw vips::VError("Processed image is too large for the HEIF format");
+        throw std::runtime_error("Processed image is too large for the HEIF format");
       }
     }
   }
@@ -1127,4 +1159,20 @@ namespace sharp {
     }
     return image;
   }
+
+  /*
+    Does this image have a gain map?
+  */
+  bool HasGainMap(VImage image) {
+    return image.get_typeof("gainmap-data") == VIPS_TYPE_BLOB;
+  }
+
+  /*
+    Removes gain map, if any.
+  */
+  VImage RemoveGainMap(VImage image) {
+    VImage copy = image.copy();
+    copy.remove("gainmap-data");
+    return copy;
+  }
 }  // namespace sharp

src/common.h

@@ -18,9 +18,9 @@
 // Verify platform and compiler compatibility
 
 #if (VIPS_MAJOR_VERSION < 8) || \
-  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION < 17) || \
+  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION < 18) || \
-  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 17 && VIPS_MICRO_VERSION < 3)
+  (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 18 && VIPS_MICRO_VERSION < 0)
-#error "libvips version 8.17.3+ is required - please see https://sharp.pixelplumbing.com/install"
+#error "libvips version 8.18.0+ is required - please see https://sharp.pixelplumbing.com/install"
 #endif
 
 #if defined(__has_include)
@@ -105,7 +105,7 @@ namespace sharp {
       rawPremultiplied(false),
       rawPageHeight(0),
       pages(1),
-      page(0),
+      page(-1),
       createChannels(0),
       createWidth(0),
       createHeight(0),
@@ -173,6 +173,7 @@ namespace sharp {
     JXL,
     RAD,
     DCRAW,
+    UHDR,
     VIPS,
     RAW,
     UNKNOWN,
@@ -397,6 +398,16 @@ namespace sharp {
   */
   VImage StaySequential(VImage image, bool condition = true);
 
+  /*
+    Does this image have a gain map?
+  */
+  bool HasGainMap(VImage image);
+
+  /*
+    Removes gain map, if any.
+  */
+  VImage RemoveGainMap(VImage image);
+
 }  // namespace sharp
 
 #endif  // SRC_COMMON_H_

src/metadata.cc

@@ -31,7 +31,7 @@ class MetadataWorker : public Napi::AsyncWorker {
     sharp::ImageType imageType = sharp::ImageType::UNKNOWN;
     try {
       std::tie(image, imageType) = OpenInput(baton->input);
-    } catch (vips::VError const &err) {
+    } catch (std::runtime_error const &err) {
       (baton->err).append(err.what());
     }
     if (imageType != sharp::ImageType::UNKNOWN) {
@@ -141,8 +141,60 @@ class MetadataWorker : public Napi::AsyncWorker {
         memcpy(baton->tifftagPhotoshop, tifftagPhotoshop, tifftagPhotoshopLength);
         baton->tifftagPhotoshopLength = tifftagPhotoshopLength;
       }
+      // Gain Map
+      if (image.get_typeof("gainmap-data") == VIPS_TYPE_BLOB) {
+        size_t gainMapLength;
+        void const *gainMap = image.get_blob("gainmap-data", &gainMapLength);
+        baton->gainMap = static_cast<char *>(g_malloc(gainMapLength));
+        memcpy(baton->gainMap, gainMap, gainMapLength);
+        baton->gainMapLength = gainMapLength;
+      }
       // PNG comments
       vips_image_map(image.get_image(), readPNGComment, &baton->comments);
+      // Media type
+      std::string mediaType;
+      switch (imageType) {
+        case sharp::ImageType::JPEG:
+        case sharp::ImageType::PNG:
+        case sharp::ImageType::WEBP:
+        case sharp::ImageType::JP2:
+        case sharp::ImageType::TIFF:
+        case sharp::ImageType::GIF:
+        case sharp::ImageType::FITS:
+        case sharp::ImageType::JXL:
+          baton->mediaType = "image/" + baton->format;
+          break;
+        case sharp::ImageType::SVG:
+          baton->mediaType = "image/svg+xml";
+          break;
+        case sharp::ImageType::HEIF:
+          if (baton->compression == "av1") {
+            baton->mediaType = "image/avif";
+          } else if (baton->compression == "hevc") {
+            baton->mediaType = "image/heic";
+          }
+          break;
+        case sharp::ImageType::PDF:
+          baton->mediaType = "application/pdf";
+          break;
+        case sharp::ImageType::OPENSLIDE:
+          baton->mediaType = "image/tiff";
+          break;
+        case sharp::ImageType::PPM:
+          baton->mediaType = "image/x-portable-pixmap";
+          break;
+        case sharp::ImageType::EXR:
+          baton->mediaType = "image/x-exr";
+          break;
+        case sharp::ImageType::RAD:
+          baton->mediaType = "image/vnd.radiance";
+          break;
+        case sharp::ImageType::UHDR:
+          baton->mediaType = "image/jpeg";
+          break;
+        default:
+          break;
+      }
     }
 
     // Clean up
@@ -164,6 +216,9 @@ class MetadataWorker : public Napi::AsyncWorker {
     if (baton->err.empty()) {
       Napi::Object info = Napi::Object::New(env);
       info.Set("format", baton->format);
+      if (!baton->mediaType.empty()) {
+        info.Set("mediaType", baton->mediaType);
+      }
       if (baton->input->bufferLength > 0) {
         info.Set("size", baton->input->bufferLength);
       }
@@ -182,10 +237,6 @@ class MetadataWorker : public Napi::AsyncWorker {
       info.Set("isPalette", baton->isPalette);
       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);
@@ -276,6 +327,12 @@ class MetadataWorker : public Napi::AsyncWorker {
           Napi::Buffer<char>::NewOrCopy(env, baton->tifftagPhotoshop,
             baton->tifftagPhotoshopLength, sharp::FreeCallback));
       }
+      if (baton->gainMapLength > 0) {
+        Napi::Object gainMap = Napi::Object::New(env);
+        info.Set("gainMap", gainMap);
+        gainMap.Set("image",
+          Napi::Buffer<char>::NewOrCopy(env, baton->gainMap, baton->gainMapLength, sharp::FreeCallback));
+      }
       if (baton->comments.size() > 0) {
         int i = 0;
         Napi::Array comments = Napi::Array::New(env, baton->comments.size());

src/metadata.h

@@ -19,6 +19,7 @@ struct MetadataBaton {
   sharp::InputDescriptor *input;
   // Output
   std::string format;
+  std::string mediaType;
   int width;
   int height;
   std::string space;
@@ -53,6 +54,8 @@ struct MetadataBaton {
   size_t xmpLength;
   char *tifftagPhotoshop;
   size_t tifftagPhotoshopLength;
+  char *gainMap;
+  size_t gainMapLength;
   MetadataComments comments;
   std::string err;
 
@@ -82,7 +85,9 @@ struct MetadataBaton {
     xmp(nullptr),
     xmpLength(0),
     tifftagPhotoshop(nullptr),
-    tifftagPhotoshopLength(0) {}
+    tifftagPhotoshopLength(0),
+    gainMap(nullptr),
+    gainMapLength(0) {}
 };
 
 Napi::Value metadata(const Napi::CallbackInfo& info);

src/operations.cc

@@ -14,7 +14,6 @@
 #include "./operations.h"
 
 using vips::VImage;
-using vips::VError;
 
 namespace sharp {
   /*
@@ -285,9 +284,9 @@ namespace sharp {
   /*
     Trim an image
   */
-  VImage Trim(VImage image, std::vector<double> background, double threshold, bool const lineArt) {
+  VImage Trim(VImage image, std::vector<double> background, double threshold, bool const lineArt, int const margin) {
     if (image.width() < 3 && image.height() < 3) {
-      throw VError("Image to trim must be at least 3x3 pixels");
+      throw std::runtime_error("Image to trim must be at least 3x3 pixels");
     }
     if (background.size() == 0) {
       // Top-left pixel provides the default background colour if none is given
@@ -320,18 +319,36 @@ namespace sharp {
       if (widthA > 0 && heightA > 0) {
         if (width > 0 && height > 0) {
           // Combined bounding box (B)
-          int const leftB = std::min(left, leftA);
+          int leftB = std::min(left, leftA);
-          int const topB = std::min(top, topA);
+          int topB = std::min(top, topA);
-          int const widthB = std::max(left + width, leftA + widthA) - leftB;
+          int widthB = std::max(left + width, leftA + widthA) - leftB;
-          int const heightB = std::max(top + height, topA + heightA) - topB;
+          int heightB = std::max(top + height, topA + heightA) - topB;
+          if (margin > 0) {
+            leftB = std::max(0, leftB - margin);
+            topB = std::max(0, topB - margin);
+            widthB = std::min(image.width() - leftB, widthB + 2 * margin);
+            heightB = std::min(image.height() - topB, heightB + 2 * margin);
+          }
           return image.extract_area(leftB, topB, widthB, heightB);
         } else {
           // Use alpha only
+          if (margin > 0) {
+            leftA = std::max(0, leftA - margin);
+            topA = std::max(0, topA - margin);
+            widthA = std::min(image.width() - leftA, widthA + 2 * margin);
+            heightA = std::min(image.height() - topA, heightA + 2 * margin);
+          }
           return image.extract_area(leftA, topA, widthA, heightA);
         }
       }
     }
     if (width > 0 && height > 0) {
+      if (margin > 0) {
+        left = std::max(0, left - margin);
+        top = std::max(0, top - margin);
+        width = std::min(image.width() - left, width + 2 * margin);
+        height = std::min(image.height() - top, height + 2 * margin);
+      }
       return image.extract_area(left, top, width, height);
     }
     return image;
@@ -343,7 +360,7 @@ namespace sharp {
   VImage Linear(VImage image, std::vector<double> const a, std::vector<double> const b) {
     size_t const bands = static_cast<size_t>(image.bands());
     if (a.size() > bands) {
-      throw VError("Band expansion using linear is unsupported");
+      throw std::runtime_error("Band expansion using linear is unsupported");
     }
     bool const uchar = !Is16Bit(image.interpretation());
     if (image.has_alpha() && a.size() != bands && (a.size() == 1 || a.size() == bands - 1 || bands - 1 == 1)) {

src/operations.h

@@ -82,7 +82,7 @@ namespace sharp {
   /*
     Trim an image
   */
-  VImage Trim(VImage image, std::vector<double> background, double threshold, bool const lineArt);
+  VImage Trim(VImage image, std::vector<double> background, double threshold, bool const lineArt, int const margin);
 
   /*
    * Linear adjustment (a * in + b)

src/pipeline.cc

@@ -84,7 +84,7 @@ class PipelineWorker : public Napi::AsyncWorker {
       if (nPages == -1) {
         // Resolve the number of pages if we need to render until the end of the document
         nPages = image.get_typeof(VIPS_META_N_PAGES) != 0
-          ? image.get_int(VIPS_META_N_PAGES) - baton->input->page
+          ? image.get_int(VIPS_META_N_PAGES) - std::max(0, baton->input->page)
           : 1;
       }
 
@@ -153,7 +153,7 @@ class PipelineWorker : public Napi::AsyncWorker {
       if (baton->trimThreshold >= 0.0) {
         MultiPageUnsupported(nPages, "Trim");
         image = sharp::StaySequential(image);
-        image = sharp::Trim(image, baton->trimBackground, baton->trimThreshold, baton->trimLineArt);
+        image = sharp::Trim(image, baton->trimBackground, baton->trimThreshold, baton->trimLineArt, baton->trimMargin);
         baton->trimOffsetLeft = image.xoffset();
         baton->trimOffsetTop = image.yoffset();
       }
@@ -274,7 +274,7 @@ class PipelineWorker : public Napi::AsyncWorker {
           }
           sharp::SetDensity(image, baton->input->density);
           if (image.width() > 32767 || image.height() > 32767) {
-            throw vips::VError("Input SVG image will exceed 32767x32767 pixel limit when scaled");
+            throw std::runtime_error("Input SVG image will exceed 32767x32767 pixel limit when scaled");
           }
         } else if (inputImageType == sharp::ImageType::PDF) {
           if (baton->input->buffer != nullptr) {
@@ -290,12 +290,20 @@ class PipelineWorker : public Napi::AsyncWorker {
         }
       } else {
         if (inputImageType == sharp::ImageType::SVG && (image.width() > 32767 || image.height() > 32767)) {
-          throw vips::VError("Input SVG image exceeds 32767x32767 pixel limit");
+          throw std::runtime_error("Input SVG image exceeds 32767x32767 pixel limit");
         }
       }
       if (baton->input->autoOrient) {
         image = sharp::RemoveExifOrientation(image);
       }
+      if (sharp::HasGainMap(image)) {
+        if (baton->withGainMap) {
+          image = image.uhdr2scRGB();
+        }
+        image = sharp::RemoveGainMap(image);
+      } else {
+        baton->withGainMap = false;
+      }
 
       // Any pre-shrinking may already have been done
       inputWidth = image.width();
@@ -335,7 +343,7 @@ class PipelineWorker : public Napi::AsyncWorker {
         image.interpretation() != VIPS_INTERPRETATION_LABS &&
         image.interpretation() != VIPS_INTERPRETATION_GREY16 &&
         baton->colourspacePipeline != VIPS_INTERPRETATION_CMYK &&
-        !baton->input->ignoreIcc
+        !baton->input->ignoreIcc && !baton->withGainMap
       ) {
         // Convert to sRGB/P3 using embedded profile
         try {
@@ -667,7 +675,7 @@ class PipelineWorker : public Napi::AsyncWorker {
 
           // Verify within current dimensions
           if (compositeImage.width() > image.width() || compositeImage.height() > image.height()) {
-            throw vips::VError("Image to composite must have same dimensions or smaller");
+            throw std::runtime_error("Image to composite must have same dimensions or smaller");
           }
           // Check if overlay is tiled
           if (composite->tile) {
@@ -957,6 +965,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("effort", baton->webpEffort)
             ->set("min_size", baton->webpMinSize)
             ->set("mixed", baton->webpMixed)
+            ->set("exact", baton->webpExact)
             ->set("alpha_q", baton->webpAlphaQuality)));
           baton->bufferOut = static_cast<char*>(area->data);
           baton->bufferOutLength = area->length;
@@ -1024,6 +1033,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("compression", baton->heifCompression)
             ->set("effort", baton->heifEffort)
             ->set("bitdepth", baton->heifBitdepth)
+            ->set("tune", baton->heifTune.c_str())
             ->set("subsample_mode", baton->heifChromaSubsampling == "4:4:4"
               ? VIPS_FOREIGN_SUBSAMPLE_OFF : VIPS_FOREIGN_SUBSAMPLE_ON)
             ->set("lossless", baton->heifLossless)));
@@ -1076,20 +1086,19 @@ class PipelineWorker : public Napi::AsyncWorker {
           // Get raw image data
           baton->bufferOut = static_cast<char*>(image.write_to_memory(&baton->bufferOutLength));
           if (baton->bufferOut == nullptr) {
-            (baton->err).append("Could not allocate enough memory for raw output");
+            throw std::runtime_error("Could not allocate enough memory for raw output");
-            return Error();
           }
           baton->formatOut = "raw";
         } else {
           // Unsupported output format
-          (baton->err).append("Unsupported output format ");
+          auto unsupported = std::string("Unsupported output format ");
           if (baton->formatOut == "input") {
-            (baton->err).append("when trying to match input format of ");
+            unsupported.append("when trying to match input format of ");
-            (baton->err).append(ImageTypeId(inputImageType));
+            unsupported.append(ImageTypeId(inputImageType));
           } else {
-            (baton->err).append(baton->formatOut);
+            unsupported.append(baton->formatOut);
           }
-          return Error();
+          throw std::runtime_error(unsupported);
         }
       } else {
         // File output
@@ -1168,6 +1177,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("effort", baton->webpEffort)
             ->set("min_size", baton->webpMinSize)
             ->set("mixed", baton->webpMixed)
+            ->set("exact", baton->webpExact)
             ->set("alpha_q", baton->webpAlphaQuality));
           baton->formatOut = "webp";
         } else if (baton->formatOut == "gif" || (mightMatchInput && isGif) ||
@@ -1223,6 +1233,7 @@ class PipelineWorker : public Napi::AsyncWorker {
             ->set("compression", baton->heifCompression)
             ->set("effort", baton->heifEffort)
             ->set("bitdepth", baton->heifBitdepth)
+            ->set("tune", baton->heifTune.c_str())
             ->set("subsample_mode", baton->heifChromaSubsampling == "4:4:4"
               ? VIPS_FOREIGN_SUBSAMPLE_OFF : VIPS_FOREIGN_SUBSAMPLE_ON)
             ->set("lossless", baton->heifLossless));
@@ -1262,7 +1273,7 @@ class PipelineWorker : public Napi::AsyncWorker {
           return Error();
         }
       }
-    } catch (vips::VError const &err) {
+    } catch (std::runtime_error const &err) {
       char const *what = err.what();
       if (what && what[0]) {
         (baton->err).append(what);
@@ -1294,7 +1305,6 @@ class PipelineWorker : public Napi::AsyncWorker {
       }
       warning = sharp::VipsWarningPop();
     }
-
     if (baton->err.empty()) {
       int width = baton->width;
       int height = baton->height;
@@ -1337,12 +1347,21 @@ class PipelineWorker : public Napi::AsyncWorker {
       }
 
       if (baton->bufferOutLength > 0) {
-        // Add buffer size to info
         info.Set("size", static_cast<uint32_t>(baton->bufferOutLength));
-        // Pass ownership of output data to Buffer instance
+        if (baton->typedArrayOut) {
-        Napi::Buffer<char> data = Napi::Buffer<char>::NewOrCopy(env, static_cast<char*>(baton->bufferOut),
+          // ECMAScript ArrayBuffer with Uint8Array view
-          baton->bufferOutLength, sharp::FreeCallback);
+          Napi::ArrayBuffer ab = Napi::ArrayBuffer::New(env, baton->bufferOutLength);
-        Callback().Call(Receiver().Value(), { env.Null(), data, info });
+          memcpy(ab.Data(), baton->bufferOut, baton->bufferOutLength);
+          sharp::FreeCallback(static_cast<char*>(baton->bufferOut), nullptr);
+          Napi::TypedArrayOf<uint8_t> data = Napi::TypedArrayOf<uint8_t>::New(env,
+            baton->bufferOutLength, ab, 0, napi_uint8_array);
+          Callback().Call(Receiver().Value(), { env.Null(), data, info });
+        } else {
+          // Node.js Buffer
+          Napi::Buffer<char> data = Napi::Buffer<char>::NewOrCopy(env, static_cast<char*>(baton->bufferOut),
+            baton->bufferOutLength, sharp::FreeCallback);
+          Callback().Call(Receiver().Value(), { env.Null(), data, info });
+        }
       } else {
         // Add file size to info
         if (baton->formatOut != "dz" || sharp::IsDzZip(baton->fileOut)) {
@@ -1386,7 +1405,7 @@ class PipelineWorker : public Napi::AsyncWorker {
 
   void MultiPageUnsupported(int const pages, std::string op) {
     if (pages > 1) {
-      throw vips::VError(op + " is not supported for multi-page images");
+      throw std::runtime_error(op + " is not supported for multi-page images");
     }
   }
 
@@ -1469,6 +1488,7 @@ class PipelineWorker : public Napi::AsyncWorker {
         {"preset", vips_enum_nick(VIPS_TYPE_FOREIGN_WEBP_PRESET, baton->webpPreset)},
         {"min_size", baton->webpMinSize ? "true" : "false"},
         {"mixed", baton->webpMixed ? "true" : "false"},
+        {"exact", baton->webpExact ? "true" : "false"},
         {"effort", std::to_string(baton->webpEffort)}
       };
       suffix = AssembleSuffixString(".webp", options);
@@ -1615,6 +1635,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   baton->trimBackground = sharp::AttrAsVectorOfDouble(options, "trimBackground");
   baton->trimThreshold = sharp::AttrAsDouble(options, "trimThreshold");
   baton->trimLineArt = sharp::AttrAsBool(options, "trimLineArt");
+  baton->trimMargin = sharp::AttrAsUint32(options, "trimMargin");
   baton->gamma = sharp::AttrAsDouble(options, "gamma");
   baton->gammaOut = sharp::AttrAsDouble(options, "gammaOut");
   baton->linearA = sharp::AttrAsVectorOfDouble(options, "linearA");
@@ -1692,6 +1713,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   // Output
   baton->formatOut = sharp::AttrAsStr(options, "formatOut");
   baton->fileOut = sharp::AttrAsStr(options, "fileOut");
+  baton->typedArrayOut = sharp::AttrAsBool(options, "typedArrayOut");
   baton->keepMetadata = sharp::AttrAsUint32(options, "keepMetadata");
   baton->withMetadataOrientation = sharp::AttrAsUint32(options, "withMetadataOrientation");
   baton->withMetadataDensity = sharp::AttrAsDouble(options, "withMetadataDensity");
@@ -1706,6 +1728,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   }
   baton->withExifMerge = sharp::AttrAsBool(options, "withExifMerge");
   baton->withXmp = sharp::AttrAsStr(options, "withXmp");
+  baton->withGainMap = sharp::AttrAsBool(options, "withGainMap");
   baton->timeoutSeconds = sharp::AttrAsUint32(options, "timeoutSeconds");
   baton->loop = sharp::AttrAsUint32(options, "loop");
   baton->delay = sharp::AttrAsInt32Vector(options, "delay");
@@ -1741,6 +1764,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   baton->webpEffort = sharp::AttrAsUint32(options, "webpEffort");
   baton->webpMinSize = sharp::AttrAsBool(options, "webpMinSize");
   baton->webpMixed = sharp::AttrAsBool(options, "webpMixed");
+  baton->webpExact = sharp::AttrAsBool(options, "webpExact");
   baton->gifBitdepth = sharp::AttrAsUint32(options, "gifBitdepth");
   baton->gifEffort = sharp::AttrAsUint32(options, "gifEffort");
   baton->gifDither = sharp::AttrAsDouble(options, "gifDither");
@@ -1775,6 +1799,7 @@ Napi::Value pipeline(const Napi::CallbackInfo& info) {
   baton->heifEffort = sharp::AttrAsUint32(options, "heifEffort");
   baton->heifChromaSubsampling = sharp::AttrAsStr(options, "heifChromaSubsampling");
   baton->heifBitdepth = sharp::AttrAsUint32(options, "heifBitdepth");
+  baton->heifTune = sharp::AttrAsStr(options, "heifTune");
   baton->jxlDistance = sharp::AttrAsDouble(options, "jxlDistance");
   baton->jxlDecodingTier = sharp::AttrAsUint32(options, "jxlDecodingTier");
   baton->jxlEffort = sharp::AttrAsUint32(options, "jxlEffort");

src/pipeline.h

@@ -48,6 +48,7 @@ struct PipelineBaton {
   size_t bufferOutLength;
   int pageHeightOut;
   int pagesOut;
+  bool typedArrayOut;
   std::vector<Composite *> composite;
   std::vector<sharp::InputDescriptor *> joinChannelIn;
   int topOffsetPre;
@@ -101,6 +102,7 @@ struct PipelineBaton {
   bool trimLineArt;
   int trimOffsetLeft;
   int trimOffsetTop;
+  int trimMargin;
   std::vector<double> linearA;
   std::vector<double> linearB;
   int dilateWidth;
@@ -167,6 +169,7 @@ struct PipelineBaton {
   int webpEffort;
   bool webpMinSize;
   bool webpMixed;
+  bool webpExact;
   int gifBitdepth;
   int gifEffort;
   double gifDither;
@@ -194,6 +197,7 @@ struct PipelineBaton {
   std::string heifChromaSubsampling;
   bool heifLossless;
   int heifBitdepth;
+  std::string heifTune;
   double jxlDistance;
   int jxlDecodingTier;
   int jxlEffort;
@@ -208,6 +212,7 @@ struct PipelineBaton {
   std::unordered_map<std::string, std::string> withExif;
   bool withExifMerge;
   std::string withXmp;
+  bool withGainMap;
   int timeoutSeconds;
   std::vector<double> convKernel;
   int convKernelWidth;
@@ -242,6 +247,7 @@ struct PipelineBaton {
     bufferOutLength(0),
     pageHeightOut(0),
     pagesOut(0),
+    typedArrayOut(false),
     topOffsetPre(-1),
     topOffsetPost(-1),
     channels(0),
@@ -281,6 +287,7 @@ struct PipelineBaton {
     trimLineArt(false),
     trimOffsetLeft(0),
     trimOffsetTop(0),
+    trimMargin(0),
     linearA{},
     linearB{},
     dilateWidth(0),
@@ -344,6 +351,7 @@ struct PipelineBaton {
     webpEffort(4),
     webpMinSize(false),
     webpMixed(false),
+    webpExact(false),
     gifBitdepth(8),
     gifEffort(7),
     gifDither(1.0),
@@ -357,7 +365,7 @@ struct PipelineBaton {
     tiffBigtiff(false),
     tiffPredictor(VIPS_FOREIGN_TIFF_PREDICTOR_HORIZONTAL),
     tiffPyramid(false),
-    tiffBitdepth(8),
+    tiffBitdepth(0),
     tiffMiniswhite(false),
     tiffTile(false),
     tiffTileHeight(256),
@@ -371,6 +379,7 @@ struct PipelineBaton {
     heifChromaSubsampling("4:4:4"),
     heifLossless(false),
     heifBitdepth(8),
+    heifTune("ssim"),
     jxlDistance(1.0),
     jxlDecodingTier(0),
     jxlEffort(7),
@@ -381,6 +390,7 @@ struct PipelineBaton {
     withMetadataOrientation(-1),
     withMetadataDensity(0.0),
     withExifMerge(true),
+    withGainMap(false),
     timeoutSeconds(0),
     convKernelWidth(0),
     convKernelHeight(0),

src/stats.cc

@@ -39,7 +39,7 @@ class StatsWorker : public Napi::AsyncWorker {
     sharp::ImageType imageType = sharp::ImageType::UNKNOWN;
     try {
       std::tie(image, imageType) = OpenInput(baton->input);
-    } catch (vips::VError const &err) {
+    } catch (std::runtime_error const &err) {
       (baton->err).append(err.what());
     }
     if (imageType != sharp::ImageType::UNKNOWN) {
@@ -92,7 +92,7 @@ class StatsWorker : public Napi::AsyncWorker {
         baton->dominantRed = dx * 16 + 8;
         baton->dominantGreen = dy * 16 + 8;
         baton->dominantBlue = dz * 16 + 8;
-      } catch (vips::VError const &err) {
+      } catch (std::runtime_error const &err) {
         (baton->err).append(err.what());
       }
     }
@@ -112,7 +112,6 @@ class StatsWorker : public Napi::AsyncWorker {
       debuglog.Call(Receiver().Value(), { Napi::String::New(env, warning) });
       warning = sharp::VipsWarningPop();
     }
-
     if (baton->err.empty()) {
       // Stats Object
       Napi::Object info = Napi::Object::New(env);

src/utilities.cc

@@ -123,6 +123,7 @@ Napi::Value format(const Napi::CallbackInfo& info) {
     "jpeg", "png", "webp", "tiff", "magick", "openslide", "dz",
     "ppm", "fits", "gif", "svg", "heif", "pdf", "vips", "jp2k", "jxl", "rad", "dcraw"
   }) {
+    std::string id = f == "jp2k" ? "jp2" : f;
     // Input
     const VipsObjectClass *oc = vips_class_find("VipsOperation", (f + "load").c_str());
     Napi::Boolean hasInputFile = Napi::Boolean::New(env, oc);
@@ -154,11 +155,11 @@ Napi::Value format(const Napi::CallbackInfo& info) {
     output.Set("stream", hasOutputBuffer);
     // Other attributes
     Napi::Object container = Napi::Object::New(env);
-    container.Set("id", f);
+    container.Set("id", id);
     container.Set("input", input);
     container.Set("output", output);
     // Add to set of formats
-    format.Set(f, container);
+    format.Set(id, container);
   }
 
   // Raw, uncompressed data
@@ -243,7 +244,7 @@ Napi::Value _maxColourDistance(const Napi::CallbackInfo& info) {
     }
     // Calculate colour distance
     maxColourDistance = image1.dE00(image2).max();
-  } catch (vips::VError const &err) {
+  } catch (std::runtime_error const &err) {
     throw Napi::Error::New(env, err.what());
   }
 

test/bench/perf.js

@@ -228,6 +228,19 @@ async.series({
             }
           });
       }
+    }).add('sharp-buffer-uint8array', {
+      defer: true,
+      fn: (deferred) => {
+        sharp(inputJpgBuffer)
+          .resize(width, height)
+          .toUint8Array()
+          .then(() => {
+            deferred.resolve();
+          })
+          .catch((err) => {
+            throw err;
+          });
+      }
     }).add('sharp-file-file', {
       defer: true,
       fn: (deferred) => {
@@ -266,6 +279,19 @@ async.series({
             }
           });
       }
+    }).add('sharp-file-uint8array', {
+      defer: true,
+      fn: (deferred) => {
+        sharp(fixtures.inputJpg)
+          .resize(width, height)
+          .toUint8Array()
+          .then(() => {
+            deferred.resolve();
+          })
+          .catch((err) => {
+            throw err;
+          });
+      }
     }).add('sharp-promise', {
       defer: true,
       fn: (deferred) => {

test/fixtures/index.js

@@ -70,9 +70,11 @@ module.exports = {
   inputJpgRandom: getPath('random.jpg'), // convert -size 200x200 xc:   +noise Random   random.jpg
   inputJpgThRandom: getPath('thRandom.jpg'), // convert random.jpg  -channel G -threshold 5% -separate +channel -negate thRandom.jpg
   inputJpgLossless: getPath('testimgl.jpg'), // Lossless JPEG from ftp://ftp.fu-berlin.de/unix/X11/graphics/ImageMagick/delegates/ljpeg-6b.tar.gz
+  inputJpgWithGainMap: getPath('gain-map.jpg'), // https://github.com/libvips/libvips/issues/3799
 
   inputPng: getPath('50020484-00001.png'), // http://c.searspartsdirect.com/lis_png/PLDM/50020484-00001.png
   inputPngGradients: getPath('gradients-rgb8.png'),
+  inputPngWithSlightGradientBorder: getPath('slight-gradient-border.png'),
   inputPngWithTransparency: getPath('blackbug.png'), // public domain
   inputPngCompleteTransparency: getPath('full-transparent.png'),
   inputPngWithGreyAlpha: getPath('grey-8bit-alpha.png'),
@@ -125,7 +127,7 @@ module.exports = {
   inputSvgSmallViewBox: getPath('circle.svg'),
   inputSvgWithEmbeddedImages: getPath('struct-image-04-t.svg'), // https://dev.w3.org/SVG/profiles/1.2T/test/svg/struct-image-04-t.svg
   inputAvif: getPath('sdr_cosmos12920_cicp1-13-6_yuv444_full_qp10.avif'), // CC by-nc-nd https://github.com/AOMediaCodec/av1-avif/tree/master/testFiles/Netflix
-
+  inputAvifWithPitmBox: getPath('pitm.avif'), // https://github.com/lovell/sharp/issues/4487
   inputJPGBig: getPath('flowers.jpeg'),
 
   inputPngDotAndLines: getPath('dot-and-lines.png'),

test/types/sharp.test-d.ts

@@ -86,6 +86,9 @@ let transformer = sharp()
   });
 readableStream.pipe(transformer).pipe(writableStream);
 
+sharp().toUint8Array();
+sharp().toUint8Array().then(({ data }) => data.byteLength);
+
 console.log(sharp.format);
 console.log(sharp.versions);
 
@@ -231,7 +234,7 @@ sharp(input)
 
 sharp(input)
   .resize(100, 100)
-  .toFormat('jpg')
+  .toFormat('avif')
   .toBuffer({ resolveWithObject: false })
   .then((outputBuffer: Buffer) => {
     // Resolves with a Buffer object when resolveWithObject is false
@@ -264,9 +267,7 @@ sharp(input)
 // Output to tif
 sharp(input)
   .resize(100, 100)
-  .toFormat('tif')
   .toFormat('tiff')
-  .toFormat(sharp.format.tif)
   .toFormat(sharp.format.tiff)
   .toBuffer();
 
@@ -362,7 +363,7 @@ sharp(input)
   .avif({ quality: 50, lossless: false, effort: 5, chromaSubsampling: '4:2:0' })
   .heif()
   .heif({})
-  .heif({ quality: 50, compression: 'hevc', lossless: false, effort: 5, chromaSubsampling: '4:2:0' })
+  .heif({ quality: 50, compression: 'hevc', lossless: false, effort: 5, chromaSubsampling: '4:2:0', tune: 'psnr' })
   .toBuffer({ resolveWithObject: true })
   .then(({ data, info }) => {
     console.log(data);
@@ -545,8 +546,8 @@ sharp('input.tiff').jxl({ decodingTier: 4 }).toFile('out.jxl');
 sharp('input.tiff').jxl({ lossless: true }).toFile('out.jxl');
 sharp('input.tiff').jxl({ effort: 7 }).toFile('out.jxl');
 
-// Support `minSize` and `mixed` webp options
+// Support webp options
-sharp('input.tiff').webp({ minSize: true, mixed: true }).toFile('out.gif');
+sharp('input.tiff').webp({ minSize: true, mixed: true, exact: true }).toFile('out.webp');
 
 // 'failOn' input param
 sharp('input.tiff', { failOn: 'none' });
@@ -598,7 +599,7 @@ const vertexSplitQuadraticBasisSpline: string = sharp.interpolators.vertexSplitQ
 // Triming
 sharp(input).trim({ background: '#000' }).toBuffer();
 sharp(input).trim({ threshold: 10, lineArt: true }).toBuffer();
-sharp(input).trim({ background: '#bf1942', threshold: 30 }).toBuffer();
+sharp(input).trim({ background: '#bf1942', threshold: 30, margin: 20 }).toBuffer();
 
 // Text input
 sharp({
@@ -771,3 +772,35 @@ sharp().erode();
 sharp().erode(1);
 sharp().dilate();
 sharp().dilate(1);
+
+sharp.format.dcraw;
+sharp.format.dz;
+sharp.format.fits;
+sharp.format.gif;
+sharp.format.heif;
+sharp.format.jp2;
+sharp.format.jpeg;
+sharp.format.jxl;
+sharp.format.magick;
+sharp.format.openslide;
+sharp.format.pdf;
+sharp.format.png;
+sharp.format.ppm;
+sharp.format.rad;
+sharp.format.raw;
+sharp.format.svg;
+sharp.format.tiff;
+sharp.format.vips;
+sharp.format.webp;
+// @ts-expect-error
+sharp.format.avif;
+// @ts-expect-error
+sharp.format.input;
+// @ts-expect-error
+sharp.format.jp2k;
+// @ts-expect-error
+sharp.format.jpg;
+// @ts-expect-error
+sharp.format.tif;
+// @ts-expect-error
+sharp.format.v;

test/unit/avif.js

@@ -7,7 +7,13 @@ const { describe, it } = require('node:test');
 const assert = require('node:assert');
 
 const sharp = require('../../');
-const { inputAvif, inputJpg, inputGifAnimated } = require('../fixtures');
+const {
+  inputAvif,
+  inputAvifWithPitmBox,
+  inputJpg,
+  inputGifAnimated,
+  inputPng,
+} = require('../fixtures');
 
 describe('AVIF', () => {
   it('called without options does not throw an error', () => {
@@ -17,22 +23,20 @@ describe('AVIF', () => {
   });
 
   it('can convert AVIF to JPEG', async () => {
-    const data = await sharp(inputAvif)
+    const data = await sharp(inputAvif).resize(32).jpeg().toBuffer();
-      .resize(32)
-      .jpeg()
-      .toBuffer();
     const { size, ...metadata } = await sharp(data).metadata();
     void size;
     assert.deepStrictEqual(metadata, {
       autoOrient: {
         height: 13,
-        width: 32
+        width: 32,
       },
       channels: 3,
       chromaSubsampling: '4:2:0',
       density: 72,
       depth: 'uchar',
       format: 'jpeg',
+      mediaType: 'image/jpeg',
       hasAlpha: false,
       hasProfile: false,
       // 32 / (2048 / 858) = 13.40625
@@ -41,7 +45,7 @@ describe('AVIF', () => {
       isProgressive: false,
       isPalette: false,
       space: 'srgb',
-      width: 32
+      width: 32,
     });
   });
 
@@ -55,12 +59,13 @@ describe('AVIF', () => {
     assert.deepStrictEqual(metadata, {
       autoOrient: {
         height: 26,
-        width: 32
+        width: 32,
       },
       channels: 3,
       compression: 'av1',
       depth: 'uchar',
       format: 'heif',
+      mediaType: 'image/avif',
       hasAlpha: false,
       hasProfile: false,
       height: 26,
@@ -70,25 +75,54 @@ describe('AVIF', () => {
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
-      width: 32
+      width: 32,
     });
   });
 
-  it('can passthrough AVIF', async () => {
+  it('can convert PNG to lossless AVIF', async () => {
-    const data = await sharp(inputAvif)
+    const data = await sharp(inputPng)
       .resize(32)
+      .avif({ lossless: true, effort: 0 })
       .toBuffer();
     const { size, ...metadata } = await sharp(data).metadata();
     void size;
     assert.deepStrictEqual(metadata, {
       autoOrient: {
-        height: 13,
+        height: 24,
-        width: 32
+        width: 32,
       },
       channels: 3,
       compression: 'av1',
       depth: 'uchar',
       format: 'heif',
+      mediaType: 'image/avif',
+      hasAlpha: false,
+      hasProfile: false,
+      height: 24,
+      isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
+      pagePrimary: 0,
+      pages: 1,
+      space: 'srgb',
+      width: 32,
+    });
+  });
+
+  it('can passthrough AVIF', async () => {
+    const data = await sharp(inputAvif).resize(32).toBuffer();
+    const { size, ...metadata } = await sharp(data).metadata();
+    void size;
+    assert.deepStrictEqual(metadata, {
+      autoOrient: {
+        height: 13,
+        width: 32,
+      },
+      channels: 3,
+      compression: 'av1',
+      depth: 'uchar',
+      format: 'heif',
+      mediaType: 'image/avif',
       hasAlpha: false,
       hasProfile: false,
       height: 13,
@@ -98,7 +132,7 @@ describe('AVIF', () => {
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
-      width: 32
+      width: 32,
     });
   });
 
@@ -112,12 +146,13 @@ describe('AVIF', () => {
     assert.deepStrictEqual(metadata, {
       autoOrient: {
         height: 300,
-        width: 10
+        width: 10,
       },
       channels: 4,
       compression: 'av1',
       depth: 'uchar',
       format: 'heif',
+      mediaType: 'image/avif',
       hasAlpha: true,
       hasProfile: false,
       height: 300,
@@ -127,7 +162,7 @@ describe('AVIF', () => {
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
-      width: 10
+      width: 10,
     });
   });
 
@@ -142,12 +177,13 @@ describe('AVIF', () => {
     assert.deepStrictEqual(metadata, {
       autoOrient: {
         height: 26,
-        width: 32
+        width: 32,
       },
       channels: 3,
       compression: 'av1',
       depth: 'uchar',
       format: 'heif',
+      mediaType: 'image/avif',
       hasAlpha: false,
       hasProfile: false,
       height: 26,
@@ -157,28 +193,91 @@ describe('AVIF', () => {
       pagePrimary: 0,
       pages: 1,
       space: 'srgb',
-      width: 32
+      width: 32,
     });
   });
 
   it('Invalid width - too large', async () =>
     assert.rejects(
-      () => sharp({ create: { width: 16385, height: 16, channels: 3, background: 'red' } }).avif().toBuffer(),
+      () =>
-      /Processed image is too large for the HEIF format/
+        sharp({
-    )
+          create: { width: 16385, height: 16, channels: 3, background: 'red' },
-  );
+        })
+          .avif()
+          .toBuffer(),
+      /Processed image is too large for the HEIF format/,
+    ));
 
   it('Invalid height - too large', async () =>
     assert.rejects(
-      () => sharp({ create: { width: 16, height: 16385, channels: 3, background: 'red' } }).avif().toBuffer(),
+      () =>
-      /Processed image is too large for the HEIF format/
+        sharp({
-    )
+          create: { width: 16, height: 16385, channels: 3, background: 'red' },
-  );
+        })
+          .avif()
+          .toBuffer(),
+      /Processed image is too large for the HEIF format/,
+    ));
 
   it('Invalid bitdepth value throws error', () =>
     assert.throws(
       () => sharp().avif({ bitdepth: 11 }),
-      /Expected 8, 10 or 12 for bitdepth but received 11 of type number/
+      /Expected 8, 10 or 12 for bitdepth but received 11 of type number/,
-    )
+    ));
-  );
+
+  it('Different tune options result in different file sizes', async () => {
+    const ssim = await sharp(inputJpg)
+      .resize(32)
+      .avif({ tune: 'ssim', effort: 0 })
+      .toBuffer();
+    const iq = await sharp(inputJpg)
+      .resize(32)
+      .avif({ tune: 'iq', effort: 0 })
+      .toBuffer();
+    assert(ssim.length < iq.length);
+  });
+
+  it('AVIF with non-zero primary item uses it as default page', async () => {
+    const { exif, ...metadata } = await sharp(inputAvifWithPitmBox).metadata();
+    void exif;
+    assert.deepStrictEqual(metadata, {
+      format: 'heif',
+      mediaType: 'image/avif',
+      width: 4096,
+      height: 800,
+      space: 'srgb',
+      channels: 3,
+      depth: 'uchar',
+      isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
+      pages: 5,
+      pagePrimary: 4,
+      compression: 'av1',
+      resolutionUnit: 'cm',
+      hasProfile: false,
+      hasAlpha: false,
+      autoOrient: { width: 4096, height: 800 },
+    });
+
+    const data = await sharp(inputAvifWithPitmBox)
+      .png({ compressionLevel: 0 })
+      .toBuffer();
+    const { size, ...pngMetadata } = await sharp(data).metadata();
+    assert.deepStrictEqual(pngMetadata, {
+      format: 'png',
+      mediaType: 'image/png',
+      width: 4096,
+      height: 800,
+      space: 'srgb',
+      channels: 3,
+      depth: 'uchar',
+      isProgressive: false,
+      isPalette: false,
+      bitsPerSample: 8,
+      hasProfile: false,
+      hasAlpha: false,
+      autoOrient: { width: 4096, height: 800 },
+    });
+  });
 });

test/unit/failOn.js

@@ -54,23 +54,6 @@ describe('failOn', () => {
     );
   });
 
-  it('deprecated failOnError', () => {
-    assert.doesNotThrow(
-      () => sharp({ failOnError: true })
-    );
-    assert.doesNotThrow(
-      () => sharp({ failOnError: false })
-    );
-    assert.throws(
-      () => sharp({ failOnError: 'zoinks' }),
-      /Expected boolean for failOnError but received zoinks of type string/
-    );
-    assert.throws(
-      () => sharp({ failOnError: 1 }),
-      /Expected boolean for failOnError but received 1 of type number/
-    );
-  });
-
   it('returns errors to callback for truncated JPEG', (_t, done) => {
     sharp(fixtures.inputJpgTruncated, { failOn: 'truncated' }).toBuffer((err, data, info) => {
       assert.ok(err.message.includes('VipsJpeg: premature end of'), err);

test/unit/gain-map.js

@@ -0,0 +1,69 @@
+/*!
+  Copyright 2013 Lovell Fuller and others.
+  SPDX-License-Identifier: Apache-2.0
+*/
+
+const { describe, it } = require('node:test');
+
+const sharp = require('../../');
+const fixtures = require('../fixtures');
+
+describe('Gain maps', () => {
+  it('Metadata contains gainMap', async (t) => {
+    t.plan(4);
+
+    const { format, gainMap } = await sharp(
+      fixtures.inputJpgWithGainMap,
+    ).metadata();
+    t.assert.strictEqual(format, 'jpeg');
+    t.assert.strictEqual(typeof gainMap, 'object');
+    t.assert.ok(Buffer.isBuffer(gainMap.image));
+    t.assert.strictEqual(gainMap.image.length, 31738);
+  });
+
+  it('Can be regenerated', async (t) => {
+    t.plan(4);
+
+    const data = await sharp(fixtures.inputJpgWithGainMap)
+      .withGainMap()
+      .toBuffer();
+    const metadata = await sharp(data).metadata();
+    t.assert.strictEqual(metadata.format, 'jpeg');
+    t.assert.strictEqual(typeof metadata.gainMap, 'object');
+    t.assert.ok(Buffer.isBuffer(metadata.gainMap.image));
+
+    const {
+      format,
+      width,
+      height,
+      channels,
+      depth,
+      space,
+      hasProfile,
+      chromaSubsampling,
+    } = await sharp(metadata.gainMap.image).metadata();
+
+    t.assert.deepEqual(
+      {
+        format,
+        width,
+        height,
+        channels,
+        depth,
+        space,
+        hasProfile,
+        chromaSubsampling,
+      },
+      {
+        format: 'jpeg',
+        width: 1920,
+        height: 1080,
+        channels: 1,
+        depth: 'uchar',
+        space: 'b-w',
+        hasProfile: true,
+        chromaSubsampling: '4:4:4',
+      },
+    );
+  });
+});

test/unit/heif.js

@@ -96,4 +96,14 @@ describe('HEIF', () => {
       sharp().heif({ compression: 'av1', bitdepth: 11 });
     }, /Error: Expected 8, 10 or 12 for bitdepth but received 11 of type number/);
   });
+  it('valid tune does not throw an error', () => {
+    assert.doesNotThrow(() => {
+      sharp().heif({ compression: 'hevc', tune: 'psnr' });
+    });
+  });
+  it('invalid tune should throw an error', () => {
+    assert.throws(() => {
+      sharp().heif({ compression: 'hevc', tune: 'fail' });
+    }, /Error: Expected one of: psnr, ssim, iq for tune but received fail of type string/);
+  });
 });

test/unit/io.js

@@ -7,6 +7,7 @@ const fs = require('node:fs');
 const path = require('node:path');
 const { afterEach, beforeEach, describe, it } = require('node:test');
 const assert = require('node:assert');
+const { isMarkedAsUntransferable } = require('node:worker_threads');
 
 const sharp = require('../../');
 const fixtures = require('../fixtures');
@@ -1092,4 +1093,39 @@ describe('Input/output', () => {
     assert.strictEqual(channels, 3);
     assert.strictEqual(format, 'jpeg');
   });
+
+  it('toBuffer resolves with an untransferable Buffer', async () => {
+    const data = await sharp(fixtures.inputJpg)
+      .resize({ width: 8, height: 8 })
+      .toBuffer();
+
+    if (isMarkedAsUntransferable) {
+      assert.strictEqual(isMarkedAsUntransferable(data.buffer), true);
+    }
+    assert.strictEqual(ArrayBuffer.isView(data), true);
+    assert.strictEqual(ArrayBuffer.isView(data.buffer), false);
+  });
+
+  it('toUint8Array resolves with a transferable Uint8Array', async () => {
+    const { data, info } = await sharp(fixtures.inputJpg)
+      .resize({ width: 8, height: 8 })
+      .toUint8Array();
+
+    assert.strictEqual(data instanceof Uint8Array, true);
+    if (isMarkedAsUntransferable) {
+      assert.strictEqual(isMarkedAsUntransferable(data.buffer), false);
+    }
+    assert.strictEqual(ArrayBuffer.isView(data), true);
+    assert.strictEqual(info.format, 'jpeg');
+    assert.strictEqual(info.width, 8);
+    assert.strictEqual(info.height, 8);
+    assert.strictEqual(data.byteLength, info.size);
+    assert.strictEqual(data[0], 0xFF);
+    assert.strictEqual(data[1], 0xD8);
+
+    const metadata = await sharp(data).metadata();
+    assert.strictEqual(metadata.format, 'jpeg');
+    assert.strictEqual(metadata.width, 8);
+    assert.strictEqual(metadata.height, 8);
+  });
 });

test/unit/jp2.js

@@ -11,7 +11,7 @@ const sharp = require('../../');
 const fixtures = require('../fixtures');
 
 describe('JP2 output', () => {
-  if (!sharp.format.jp2k.input.buffer) {
+  if (!sharp.format.jp2.input.buffer) {
     it('JP2 output should fail due to missing OpenJPEG', () =>
       assert.rejects(async () =>
         sharp(fixtures.inputJpg)
@@ -45,11 +45,11 @@ describe('JP2 output', () => {
           assert.strictEqual('png', info.format);
           assert.strictEqual(8, info.width);
           assert.strictEqual(15, info.height);
-          assert.strictEqual(4, info.channels);
+          assert.strictEqual(3, info.channels);
         });
     });
 
-    it('JP2 quality', (done) => {
+    it('JP2 quality', (_t, done) => {
       sharp(fixtures.inputJp2)
         .resize(320, 240)
         .jp2({ quality: 70 })
@@ -65,7 +65,7 @@ describe('JP2 output', () => {
         });
     });
 
-    it('Without chroma subsampling generates larger file', (done) => {
+    it('Without chroma subsampling generates larger file', (_t, done) => {
       // First generate with chroma subsampling (default)
       sharp(fixtures.inputJp2)
         .resize(320, 240)
@@ -111,7 +111,7 @@ describe('JP2 output', () => {
     it('Invalid JP2 chromaSubsampling value throws error', () => {
       assert.throws(
         () => sharp().jp2({ chromaSubsampling: '4:2:2' }),
-        /Expected one of 4:2:0, 4:4:4 but received 4:2:2 of type string/
+        /Expected one of: 4:2:0, 4:4:4 for chromaSubsampling but received 4:2:2 of type string/
       );
     });
   }

test/unit/libvips.js

@@ -180,7 +180,7 @@ describe('libvips binaries', () => {
       process.env.npm_config_arch = 's390x';
       process.env.npm_config_libc = '';
       const locatorHash = libvips.yarnLocator();
-      assert.strictEqual(locatorHash, '4ab19140fd');
+      assert.strictEqual(locatorHash, 'f7e557e9d6');
       delete process.env.npm_config_platform;
       delete process.env.npm_config_arch;
       delete process.env.npm_config_libc;

test/unit/metadata.js

@@ -19,6 +19,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputJpg).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('jpeg', metadata.format);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2725, metadata.width);
       assert.strictEqual(2225, metadata.height);
@@ -41,6 +42,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputJpgWithExif).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('jpeg', metadata.format);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(450, metadata.width);
       assert.strictEqual(600, metadata.height);
@@ -66,6 +68,7 @@ describe('Image metadata', () => {
       const profile = icc.parse(metadata.icc);
       assert.strictEqual('object', typeof profile);
       assert.strictEqual('Generic RGB Profile', profile.description);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       done();
     });
   });
@@ -92,6 +95,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputTiff).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('tiff', metadata.format);
+      assert.strictEqual('image/tiff', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2464, metadata.width);
       assert.strictEqual(3248, metadata.height);
@@ -111,6 +115,7 @@ describe('Image metadata', () => {
       assert.strictEqual('undefined', typeof metadata.xmp);
       assert.strictEqual('undefined', typeof metadata.xmpAsString);
       assert.strictEqual('inch', metadata.resolutionUnit);
+      assert.strictEqual('image/tiff', metadata.mediaType);
       done();
     });
   });
@@ -119,6 +124,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputTiffMultipage).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('tiff', metadata.format);
+      assert.strictEqual('image/tiff', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2464, metadata.width);
       assert.strictEqual(3248, metadata.height);
@@ -142,6 +148,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputPng).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('png', metadata.format);
+      assert.strictEqual('image/png', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2809, metadata.width);
       assert.strictEqual(2074, metadata.height);
@@ -166,6 +173,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputPngTestJoinChannel).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('png', metadata.format);
+      assert.strictEqual('image/png', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(320, metadata.width);
       assert.strictEqual(240, metadata.height);
@@ -191,6 +199,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputPngWithTransparency).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('png', metadata.format);
+      assert.strictEqual('image/png', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2048, metadata.width);
       assert.strictEqual(1536, metadata.height);
@@ -225,6 +234,7 @@ describe('Image metadata', () => {
       height: 32,
       isPalette: false,
       isProgressive: false,
+      mediaType: 'image/png',
       space: 'b-w',
       width: 32,
       autoOrient: {
@@ -250,6 +260,7 @@ describe('Image metadata', () => {
       height: 32,
       isPalette: false,
       isProgressive: false,
+      mediaType: 'image/png',
       space: 'grey16',
       width: 32,
       autoOrient: {
@@ -263,6 +274,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputWebP).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('webp', metadata.format);
+      assert.strictEqual('image/webp', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(1024, metadata.width);
       assert.strictEqual(772, metadata.height);
@@ -285,11 +297,12 @@ describe('Image metadata', () => {
     sharp(fixtures.inputWebPAnimated)
       .metadata()
       .then(({
-        format, width, height, space, channels, depth,
+        format, mediaType, width, height, space, channels, depth,
         isProgressive, pages, loop, delay, hasProfile,
         hasAlpha
       }) => {
         assert.strictEqual(format, 'webp');
+        assert.strictEqual(mediaType, 'image/webp');
         assert.strictEqual(width, 80);
         assert.strictEqual(height, 80);
         assert.strictEqual(space, 'srgb');
@@ -308,11 +321,12 @@ describe('Image metadata', () => {
     sharp(fixtures.inputWebPAnimated, { pages: -1 })
       .metadata()
       .then(({
-        format, width, height, space, channels, depth,
+        format, mediaType, width, height, space, channels, depth,
         isProgressive, pages, pageHeight, loop, delay,
         hasProfile, hasAlpha
       }) => {
         assert.strictEqual(format, 'webp');
+        assert.strictEqual(mediaType, 'image/webp');
         assert.strictEqual(width, 80);
         assert.strictEqual(height, 720);
         assert.strictEqual(space, 'srgb');
@@ -332,11 +346,12 @@ describe('Image metadata', () => {
     sharp(fixtures.inputWebPAnimatedLoop3)
       .metadata()
       .then(({
-        format, width, height, space, channels, depth,
+        format, mediaType, width, height, space, channels, depth,
         isProgressive, pages, loop, delay, hasProfile,
         hasAlpha
       }) => {
         assert.strictEqual(format, 'webp');
+        assert.strictEqual(mediaType, 'image/webp');
         assert.strictEqual(width, 370);
         assert.strictEqual(height, 285);
         assert.strictEqual(space, 'srgb');
@@ -355,6 +370,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputGif).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('gif', metadata.format);
+      assert.strictEqual('image/gif', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(800, metadata.width);
       assert.strictEqual(533, metadata.height);
@@ -375,6 +391,7 @@ describe('Image metadata', () => {
     sharp(fixtures.inputGifGreyPlusAlpha).metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('gif', metadata.format);
+      assert.strictEqual('image/gif', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2, metadata.width);
       assert.strictEqual(1, metadata.height);
@@ -395,11 +412,12 @@ describe('Image metadata', () => {
     sharp(fixtures.inputGifAnimated)
       .metadata()
       .then(({
-        format, width, height, space, channels, depth,
+        format, mediaType, width, height, space, channels, depth,
         isProgressive, pages, loop, delay, background,
         hasProfile, hasAlpha
       }) => {
         assert.strictEqual(format, 'gif');
+        assert.strictEqual(mediaType, 'image/gif');
         assert.strictEqual(width, 80);
         assert.strictEqual(height, 80);
         assert.strictEqual(space, 'srgb');
@@ -419,11 +437,12 @@ describe('Image metadata', () => {
     sharp(fixtures.inputGifAnimatedLoop3)
       .metadata()
       .then(({
-        format, width, height, space, channels, depth,
+        format, mediaType, width, height, space, channels, depth,
         isProgressive, pages, loop, delay, hasProfile,
         hasAlpha
       }) => {
         assert.strictEqual(format, 'gif');
+        assert.strictEqual(mediaType, 'image/gif');
         assert.strictEqual(width, 370);
         assert.strictEqual(height, 285);
         assert.strictEqual(space, 'srgb');
@@ -462,6 +481,7 @@ describe('Image metadata', () => {
   it('File in, Promise out', (_t, done) => {
     sharp(fixtures.inputJpg).metadata().then((metadata) => {
       assert.strictEqual('jpeg', metadata.format);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2725, metadata.width);
       assert.strictEqual(2225, metadata.height);
@@ -508,6 +528,7 @@ describe('Image metadata', () => {
     const pipeline = sharp();
     pipeline.metadata().then((metadata) => {
       assert.strictEqual('jpeg', metadata.format);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       assert.strictEqual(829183, metadata.size);
       assert.strictEqual(2725, metadata.width);
       assert.strictEqual(2225, metadata.height);
@@ -559,6 +580,7 @@ describe('Image metadata', () => {
     const pipeline = sharp().metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('jpeg', metadata.format);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       assert.strictEqual(829183, metadata.size);
       assert.strictEqual(2725, metadata.width);
       assert.strictEqual(2225, metadata.height);
@@ -583,6 +605,7 @@ describe('Image metadata', () => {
     image.metadata((err, metadata) => {
       if (err) throw err;
       assert.strictEqual('jpeg', metadata.format);
+      assert.strictEqual('image/jpeg', metadata.mediaType);
       assert.strictEqual('undefined', typeof metadata.size);
       assert.strictEqual(2725, metadata.width);
       assert.strictEqual(2225, metadata.height);
@@ -917,6 +940,7 @@ describe('Image metadata', () => {
       .metadata()
       .then(metadata => {
         assert.strictEqual(metadata.format, 'tiff');
+        assert.strictEqual(metadata.mediaType, 'image/tiff');
         assert.strictEqual(metadata.width, 317);
         assert.strictEqual(metadata.height, 211);
         assert.strictEqual(metadata.space, 'rgb16');
@@ -931,6 +955,7 @@ describe('Image metadata', () => {
     const metadata = await sharp(fixtures.inputAvif).metadata();
     assert.deepStrictEqual(metadata, {
       format: 'heif',
+      mediaType: 'image/avif',
       width: 2048,
       height: 858,
       space: 'srgb',
@@ -1014,6 +1039,7 @@ describe('Image metadata', () => {
     const metadata = await sharp(fixtures.inputJpgLossless).metadata();
     assert.deepStrictEqual(metadata, {
       format: 'jpeg',
+      mediaType: 'image/jpeg',
       width: 227,
       height: 149,
       space: 'srgb',

test/unit/png.js

@@ -145,6 +145,7 @@ describe('PNG', () => {
         width: 68
       },
       format: 'png',
+      mediaType: 'image/png',
       width: 68,
       height: 68,
       space: 'srgb',
@@ -154,7 +155,6 @@ describe('PNG', () => {
       isProgressive: false,
       isPalette: true,
       bitsPerSample: 8,
-      paletteBitDepth: 8,
       hasProfile: false,
       hasAlpha: false
     });
@@ -226,12 +226,10 @@ describe('PNG', () => {
       .png({ colours: 2, palette: false })
       .toBuffer();
 
-    const { channels, isPalette, bitsPerSample, paletteBitDepth, size, space } = await sharp(data).metadata();
+    const { channels, isPalette, bitsPerSample, 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/sharpen.js

@@ -94,24 +94,6 @@ describe('Sharpen', () => {
       });
   });
 
-  it('invalid sigma', () => {
-    assert.throws(() => {
-      sharp(fixtures.inputJpg).sharpen(-1.5);
-    });
-  });
-
-  it('invalid flat', () => {
-    assert.throws(() => {
-      sharp(fixtures.inputJpg).sharpen(1, -1);
-    });
-  });
-
-  it('invalid jagged', () => {
-    assert.throws(() => {
-      sharp(fixtures.inputJpg).sharpen(1, 1, -1);
-    });
-  });
-
   it('invalid options.sigma', () => assert.throws(
     () => sharp().sharpen({ sigma: -1 }),
     /Expected number between 0\.000001 and 10 for options\.sigma but received -1 of type number/
@@ -144,24 +126,23 @@ describe('Sharpen', () => {
 
   it('sharpened image is larger than non-sharpened', (_t, done) => {
     sharp(fixtures.inputJpg)
-      .resize(320, 240)
+      .resize(32, 24)
-      .sharpen(false)
       .toBuffer((err, notSharpened, info) => {
         if (err) throw err;
         assert.strictEqual(true, notSharpened.length > 0);
         assert.strictEqual('jpeg', info.format);
-        assert.strictEqual(320, info.width);
+        assert.strictEqual(32, info.width);
-        assert.strictEqual(240, info.height);
+        assert.strictEqual(24, info.height);
         sharp(fixtures.inputJpg)
-          .resize(320, 240)
+          .resize(32, 24)
-          .sharpen(true)
+          .sharpen()
           .toBuffer((err, sharpened, info) => {
             if (err) throw err;
             assert.strictEqual(true, sharpened.length > 0);
             assert.strictEqual(true, sharpened.length > notSharpened.length);
             assert.strictEqual('jpeg', info.format);
-            assert.strictEqual(320, info.width);
+            assert.strictEqual(32, info.width);
-            assert.strictEqual(240, info.height);
+            assert.strictEqual(24, info.height);
             done();
           });
       });

test/unit/tiff.js

@@ -122,7 +122,6 @@ describe('TIFF', () => {
     sharp(fixtures.inputTiff8BitDepth)
       .toColourspace('b-w') // can only squash 1 band uchar images
       .tiff({
-        bitdepth: 8,
         compression: 'none',
         predictor: 'none'
       })
@@ -154,7 +153,7 @@ describe('TIFF', () => {
   it('Invalid TIFF bitdepth value throws error', () => {
     assert.throws(() => {
       sharp().tiff({ bitdepth: 3 });
-    }, /Error: Expected 1, 2, 4 or 8 for bitdepth but received 3 of type number/);
+    }, /Error: Expected 1, 2 or 4 for bitdepth but received 3 of type number/);
   });
 
   it('TIFF setting xres and yres on file', () =>

test/unit/trim.js

@@ -222,6 +222,9 @@ describe('Trim borders', () => {
       },
       'Invalid lineArt': {
         lineArt: 'fail'
+      },
+      'Invalid margin': {
+        margin: -1
       }
     }).forEach(([description, parameter]) => {
       it(description, () => {
@@ -289,4 +292,42 @@ describe('Trim borders', () => {
       assert.strictEqual(trimOffsetLeft, 0);
     });
   });
+
+  describe('Adds margin around content', () => {
+    it('Should trim complex gradients', async () => {
+      const { info } = await sharp(fixtures.inputPngGradients)
+        .trim({ threshold: 50, margin: 100 })
+        .toBuffer({ resolveWithObject: true });
+
+      const { width, height, trimOffsetTop, trimOffsetLeft } = info;
+      assert.strictEqual(width, 1000);
+      assert.strictEqual(height, 443);
+      assert.strictEqual(trimOffsetTop, -557);
+      assert.strictEqual(trimOffsetLeft, 0);
+    });
+
+    it('Should trim simple gradients', async () => {
+      const { info } = await sharp(fixtures.inputPngWithSlightGradientBorder)
+        .trim({ threshold: 70, margin: 50 })
+        .toBuffer({ resolveWithObject: true });
+
+      const { width, height, trimOffsetTop, trimOffsetLeft } = info;
+      assert.strictEqual(width, 900);
+      assert.strictEqual(height, 900);
+      assert.strictEqual(trimOffsetTop, -50);
+      assert.strictEqual(trimOffsetLeft, -50);
+    });
+
+    it('Should not overflow image bounding box', async () => {
+      const { info } = await sharp(fixtures.inputPngWithSlightGradientBorder)
+        .trim({ threshold: 70, margin: 9999999 })
+        .toBuffer({ resolveWithObject: true });
+
+      const { width, height, trimOffsetTop, trimOffsetLeft } = info;
+      assert.strictEqual(width, 1000);
+      assert.strictEqual(height, 1000);
+      assert.strictEqual(trimOffsetTop, 0);
+      assert.strictEqual(trimOffsetLeft, 0);
+    });
+  });
 });

test/unit/webp.js

@@ -213,6 +213,33 @@ describe('WebP', () => {
     );
   });
 
+  it('valid exact', () => {
+    assert.doesNotThrow(() => sharp().webp({ exact: true }));
+  });
+
+  it('invalid exact throws', () => {
+    assert.throws(
+      () => sharp().webp({ exact: 'fail' }),
+      /Expected boolean for webpExact but received fail of type string/
+    );
+  });
+
+  it('saving exact pixel colour values produces larger file size', async () => {
+    const withExact = await
+      sharp(fixtures.inputPngAlphaPremultiplicationSmall)
+        .resize(8, 8)
+        .webp({ exact: true, effort: 0 })
+        .toBuffer();
+
+    const withoutExact = await
+      sharp(fixtures.inputPngAlphaPremultiplicationSmall)
+        .resize(8, 8)
+        .webp({ exact: false, effort: 0 })
+        .toBuffer()
+
+    assert.strictEqual(true, withExact.length > withoutExact.length);
+  });
+
   it('invalid loop throws', () => {
     assert.throws(() => {
       sharp().webp({ loop: -1 });