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Add raw, uncompressed image data output #136

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Lovell Fuller
2014-12-16 15:46:47 +00:00
parent 464fb1726d
commit a190ae6b08
4 changed files with 100 additions and 5 deletions
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49
test/unit/io.js
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@@ -384,8 +384,8 @@ describe('Input/output', function() {
done();
});
if (semver.gte(sharp.libvipsVersion(), '7.41.0')) {
it('withoutAdaptiveFiltering generates smaller file [libvips ' + sharp.libvipsVersion() + '>=7.41.0]', function(done) {
if (semver.gte(sharp.libvipsVersion(), '7.42.0')) {
it('withoutAdaptiveFiltering generates smaller file [libvips ' + sharp.libvipsVersion() + '>=7.42.0]', function(done) {
// First generate with adaptive filtering
sharp(fixtures.inputPng)
.resize(320, 240)
@@ -463,4 +463,49 @@ describe('Input/output', function() {
});
}
if (semver.gte(sharp.libvipsVersion(), '7.42.0')) {
describe('Ouput raw, uncompressed image data [libvips ' + sharp.libvipsVersion() + '>=7.42.0]', function() {
it('1 channel greyscale image', function(done) {
sharp(fixtures.inputJpg)
.greyscale()
.resize(32, 24)
.raw()
.toBuffer(function(err, data, info) {
assert.strictEqual(32 * 24 * 1, info.size);
assert.strictEqual(data.length, info.size);
assert.strictEqual('raw', info.format);
assert.strictEqual(32, info.width);
assert.strictEqual(24, info.height);
done();
});
});
it('3 channel colour image without transparency', function(done) {
sharp(fixtures.inputJpg)
.resize(32, 24)
.raw()
.toBuffer(function(err, data, info) {
assert.strictEqual(32 * 24 * 3, info.size);
assert.strictEqual(data.length, info.size);
assert.strictEqual('raw', info.format);
assert.strictEqual(32, info.width);
assert.strictEqual(24, info.height);
done();
});
});
it('4 channel colour image with transparency', function(done) {
sharp(fixtures.inputPngWithTransparency)
.resize(32, 24)
.raw()
.toBuffer(function(err, data, info) {
assert.strictEqual(32 * 24 * 4, info.size);
assert.strictEqual(data.length, info.size);
assert.strictEqual('raw', info.format);
assert.strictEqual(32, info.width);
assert.strictEqual(24, info.height);
done();
});
});
});
}
});