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

Ensure integral output of linear op #3468

Browse Source
This commit is contained in:
Lovell Fuller
2022-12-04 21:41:15 +00:00
parent a472aea025
commit 0265d305fe
3 changed files with 27 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
test/unit/linear.js
View File

@@ -73,6 +73,28 @@ describe('Linear adjustment', function () {
});
});
it('output is integer, not float, RGB', async () => {
const data = await sharp({ create: { width: 1, height: 1, channels: 3, background: 'red' } })
.linear(1, 0)
.tiff({ compression: 'none' })
.toBuffer();
const { channels, depth } = await sharp(data).metadata();
assert.strictEqual(channels, 3);
assert.strictEqual(depth, 'uchar');
});
it('output is integer, not float, RGBA', async () => {
const data = await sharp({ create: { width: 1, height: 1, channels: 4, background: '#ff000077' } })
.linear(1, 0)
.tiff({ compression: 'none' })
.toBuffer();
const { channels, depth } = await sharp(data).metadata();
assert.strictEqual(channels, 4);
assert.strictEqual(depth, 'uchar');
});
it('Invalid linear arguments', function () {
assert.throws(
() => sharp().linear('foo'),