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Add features from libvips 7.40+

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Load TIFF from Buffer/Stream

Interlaced PNG output no longer needs tilecache

Option to disable PNG adaptive row filtering
This commit is contained in:
Lovell Fuller
2014-11-07 15:38:41 +00:00
parent 740838b47c
commit 7537adf399
11 changed files with 183 additions and 21 deletions
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54
test/unit/io.js
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@@ -3,6 +3,8 @@
var fs = require('fs');
var assert = require('assert');
var semver = require('semver');
var sharp = require('../../index');
var fixtures = require('../fixtures');
@@ -343,9 +345,9 @@ describe('Input/output', function() {
});
describe('PNG compression level', function() {
describe('PNG output', function() {
it('valid', function(done) {
it('compression level is valid', function(done) {
var isValid = false;
try {
sharp().compressionLevel(0);
@@ -355,7 +357,7 @@ describe('Input/output', function() {
done();
});
it('invalid', function(done) {
it('compression level is invalid', function(done) {
var isValid = false;
try {
sharp().compressionLevel(-1);
@@ -365,6 +367,52 @@ describe('Input/output', function() {
done();
});
if (semver.gte(sharp.libvipsVersion(), '7.41.0')) {
it('withoutAdaptiveFiltering generates smaller file [libvips 7.41.0+]', function(done) {
// First generate with adaptive filtering
sharp(fixtures.inputPng)
.resize(320, 240)
.withoutAdaptiveFiltering(false)
.toBuffer(function(err, dataAdaptive, info) {
if (err) throw err;
assert.strictEqual(true, dataAdaptive.length > 0);
assert.strictEqual('png', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
// Then generate without
sharp(fixtures.inputPng)
.resize(320, 240)
.withoutAdaptiveFiltering()
.toBuffer(function(err, dataWithoutAdaptive, info) {
if (err) throw err;
assert.strictEqual(true, dataWithoutAdaptive.length > 0);
assert.strictEqual('png', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
assert.strictEqual(true, dataWithoutAdaptive.length < dataAdaptive.length);
done();
});
});
});
}
});
if (semver.gte(sharp.libvipsVersion(), '7.40.0')) {
it('Load TIFF from Buffer [libvips 7.40.0+]', function(done) {
var inputTiffBuffer = fs.readFileSync(fixtures.inputTiff);
sharp(inputTiffBuffer)
.resize(320, 240)
.jpeg()
.toBuffer(function(err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
done();
});
});
}
});