Mathis/sharp
1
0
Fork 0
mirror of https://github.com/lovell/sharp.git synced 2025-12-19 07:15:08 +01:00
Code Issues Packages Projects Releases Wiki Activity

Allow non-RGB input to embed/extend onto bg with alpha #646

Browse Source
This commit is contained in:
Lovell Fuller
2016-12-11 15:58:20 +00:00
parent 61721bb086
commit d2455267a8
11 changed files with 74 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
test/unit/embed.js
View File

@@ -22,24 +22,22 @@ describe('Embed', function () {
});
});
if (sharp.format.webp.output.buffer) {
it('JPEG within WebP, to include alpha channel', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.background({r: 0, g: 0, b: 0, alpha: 0})
.embed()
.webp()
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('webp', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
assert.strictEqual(4, info.channels);
fixtures.assertSimilar(fixtures.expected('embed-3-into-4.webp'), data, done);
});
});
}
it('JPEG within WebP, to include alpha channel', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.background({r: 0, g: 0, b: 0, alpha: 0})
.embed()
.webp()
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('webp', info.format);
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
assert.strictEqual(4, info.channels);
fixtures.assertSimilar(fixtures.expected('embed-3-into-4.webp'), data, done);
});
});
it('PNG with alpha channel', function (done) {
sharp(fixtures.inputPngWithTransparency)
@@ -103,6 +101,23 @@ describe('Embed', function () {
});
});
it('embed TIFF in LAB colourspace onto RGBA background', function (done) {
sharp(fixtures.inputTiffCielab)
.resize(64, 128)
.embed()
.background({r: 255, g: 102, b: 0, alpha: 0.5})
.png()
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('png', info.format);
assert.strictEqual(64, info.width);
assert.strictEqual(128, info.height);
assert.strictEqual(4, info.channels);
fixtures.assertSimilar(fixtures.expected('embed-lab-into-rgba.png'), data, done);
});
});
it('Enlarge and embed', function (done) {
sharp(fixtures.inputPngWithOneColor)
.embed()