From aa0292c6a58347b907c2f154f58f6ac0e4d09765 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 5 Jan 2026 05:11:15 +0000
Subject: [PATCH 1/2] Initial plan


From c199f0018892ed1575b3f737cdfe111b1edbccef Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Mon, 5 Jan 2026 05:18:30 +0000
Subject: [PATCH 2/2] Add optional constructorOptions parameter to Sharp::run()
 method

Co-authored-by: kiatng <1106470+kiatng@users.noreply.github.com>
---
 README.md                | 17 ++++++++++++++++-
 src/Sharp.php            |  9 +++++++--
 src/sharp.js             | 16 +++++++++++++---
 tests/Unit/SharpTest.php | 21 +++++++++++++++++++++
 4 files changed, 57 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 6c782e5..306891c 100644
--- a/README.md
+++ b/README.md
@@ -35,9 +35,10 @@ This last command will create a `node_modules` directory, `package-lock.json` an
 - Sharp npm package
 
 ## Usage
-There is only one static method `run` in the `Sharp` class. It takes two arguments:
+There is only one static method `run` in the `Sharp` class. It takes three arguments:
 - `$io`: Input and output parameters
 - `$params`: Parameters for the image processing
+- `$constructorOptions` (optional): Sharp constructor options (e.g., `density`, `failOn`, `limitInputPixels`)
 
 Refer to the [Sharp documentation](https://sharp.pixelplumbing.com/) on the specifications of the parameters.
 
@@ -77,6 +78,20 @@ Sharp::run(
 );
 ```
 
+Example with constructor options (e.g., setting DPI for SVG rendering):
+```php
+Sharp::run(
+    [
+        'input' => ['is_raw' => false, 'data' => $svgPath],
+        'output' => ['is_raw' => false, 'file' => $pngPath],
+    ],
+    [
+        'resize' => ['width' => 300, 'height' => 200]
+    ],
+    ['density' => 300] // Set DPI to 300 for higher quality SVG rendering
+);
+```
+
 Refer to the test cases in `tests/Unit/SharpTest.php` for more examples.
 
 ## Contributing
diff --git a/src/Sharp.php b/src/Sharp.php
index eea76bb..0b38ff2 100644
--- a/src/Sharp.php
+++ b/src/Sharp.php
@@ -17,10 +17,11 @@ class Sharp
     /**
      * @param array $io {input: {is_raw: bool, data: string, ?ext: string}, output: {is_raw: bool, ?file: string}}
      * @param array $params {toFormat: {format: string, options: object}, {resize: {width: int, height: int, options: object}}}
+     * @param array $constructorOptions Optional Sharp constructor options (e.g., density, failOn, limitInputPixels)
      * @return string
      * @throws Exception
      */
-    public static function run(array $io, array $params)
+    public static function run(array $io, array $params, array $constructorOptions = [])
     {
         try {
             if ($io['input']['is_raw']) {
@@ -38,7 +39,11 @@ public static function run(array $io, array $params)
                 $file = $io['input']['data'];
             }
 
-            $process = new Process(['node', __DIR__ . '/sharp.js', $file, json_encode($params)]);
+            $args = ['node', __DIR__ . '/sharp.js', $file, json_encode($params)];
+            if (!empty($constructorOptions)) {
+                $args[] = json_encode($constructorOptions);
+            }
+            $process = new Process($args);
             $process->run();
 
             // Cleanup temporary file
diff --git a/src/sharp.js b/src/sharp.js
index f342f33..ec1022d 100644
--- a/src/sharp.js
+++ b/src/sharp.js
@@ -16,7 +16,7 @@ const sharp = require('sharp');
             throw new Error('Missing required arguments: file and apis');
         }
 
-        const [file, apisJson] = arguments;
+        const [file, apisJson, constructorOptionsJson] = arguments;
 
         // Validate JSON apis
         let apis;
@@ -26,8 +26,18 @@ const sharp = require('sharp');
             throw new Error('Invalid apis JSON format');
         }
 
-        // Initialize sharp with input file
-        let image = sharp(file);
+        // Parse constructor options (optional)
+        let constructorOptions = {};
+        if (constructorOptionsJson) {
+            try {
+                constructorOptions = JSON.parse(constructorOptionsJson);
+            } catch (e) {
+                throw new Error('Invalid constructorOptions JSON format');
+            }
+        }
+
+        // Initialize sharp with input file and optional constructor options
+        let image = sharp(file, constructorOptions);
 
         // Define supported APIs map, see https://sharp.pixelplumbing.com/
         const supportedApis = {
diff --git a/tests/Unit/SharpTest.php b/tests/Unit/SharpTest.php
index e52fc32..3e7b60a 100644
--- a/tests/Unit/SharpTest.php
+++ b/tests/Unit/SharpTest.php
@@ -111,4 +111,25 @@ public function testCanRemoveAlphaChannel()
 
         $this->assertFileExists($outputPath);
     }
+
+    public function testCanUseConstructorOptions()
+    {
+        $outputPath = $this->testOutputDir . '/with-density.png';
+
+        $io = [
+            'input' => ['is_raw' => false, 'data' => $this->testSvgFile],
+            'output' => ['is_raw' => false, 'file' => $outputPath]
+        ];
+
+        $params = [
+            'resize' => ['width' => 200, 'height' => 200]
+        ];
+
+        // Use density option to set DPI for SVG rendering
+        $constructorOptions = ['density' => 300];
+
+        Sharp::run($io, $params, $constructorOptions);
+
+        $this->assertFileExists($outputPath);
+    }
 }
\ No newline at end of file