mirror of
https://github.com/lovell/sharp.git
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73 lines
2.1 KiB
JavaScript
Executable File
73 lines
2.1 KiB
JavaScript
Executable File
var sharp = require("./build/Release/sharp");
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module.exports.buffer = {
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jpeg: "__jpeg",
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png: "__png",
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webp: "__webp"
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};
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module.exports.canvas = {
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crop: "c",
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embedWhite: "w",
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embedBlack: "b"
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};
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module.exports.resize = function(input, output, width, height, options, callback) {
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"use strict";
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if (typeof options === 'function') {
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callback = options;
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options = {};
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} else {
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options = options || {};
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}
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if (typeof input === 'string') {
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options.inFile = input;
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} else if (typeof input ==='object' && input instanceof Buffer) {
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options.inBuffer = input;
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} else {
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callback("Unsupported input " + typeof input);
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return;
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}
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if (!output || output.length === 0) {
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callback("Invalid output");
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return;
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}
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var outWidth = Number(width);
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if (Number.isNaN(outWidth)) {
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callback("Invalid width " + width);
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return;
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}
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var outHeight = Number(height);
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if (Number.isNaN(outHeight)) {
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callback("Invalid height " + height);
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return;
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}
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var canvas = options.canvas || "c";
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if (canvas.length !== 1 || "cwb".indexOf(canvas) === -1) {
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callback("Invalid canvas " + canvas);
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return;
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}
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var sharpen = !!options.sharpen;
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var progessive = !!options.progessive;
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var sequentialRead = !!options.sequentialRead;
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sharp.resize(options.inFile, options.inBuffer, output, width, height, canvas, sharpen, progessive, sequentialRead, callback);
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};
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module.exports.cache = function(limit) {
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if (Number.isNaN(limit)) {
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limit = null;
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}
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return sharp.cache(limit);
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}
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/* Deprecated v0.0.x methods */
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module.exports.crop = function(input, output, width, height, sharpen, callback) {
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sharp.resize(input, output, width, height, {canvas: "c", sharpen: true}, callback);
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};
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module.exports.embedWhite = function(input, output, width, height, callback) {
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sharp.resize(input, output, width, height, {canvas: "w", sharpen: true}, callback);
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};
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module.exports.embedBlack = function(input, output, width, height, callback) {
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sharp.resize(input, output, width, height, {canvas: "b", sharpen: true}, callback);
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};
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