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Ensure op ordering is respected where possible #3319

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Emit warnings when previous ops might be ignored
Flip and flop now occur before rotate, if any
This commit is contained in:
Lovell Fuller
2022-08-18 13:57:13 +01:00
parent e547eaa180
commit 212a6e7519
13 changed files with 168 additions and 50 deletions
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56
test/unit/rotate.js
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@@ -25,8 +25,8 @@ describe('Rotation', function () {
it('Rotate by 30 degrees with semi-transparent background', function (done) {
sharp(fixtures.inputJpg)
.rotate(30, { background: { r: 255, g: 0, b: 0, alpha: 0.5 } })
.resize(320)
.rotate(30, { background: { r: 255, g: 0, b: 0, alpha: 0.5 } })
.png()
.toBuffer(function (err, data, info) {
if (err) throw err;
@@ -39,8 +39,8 @@ describe('Rotation', function () {
it('Rotate by 30 degrees with solid background', function (done) {
sharp(fixtures.inputJpg)
.rotate(30, { background: { r: 255, g: 0, b: 0, alpha: 0.5 } })
.resize(320)
.rotate(30, { background: { r: 255, g: 0, b: 0, alpha: 0.5 } })
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual('jpeg', info.format);
@@ -51,25 +51,31 @@ describe('Rotation', function () {
});
it('Rotate by 90 degrees, respecting output input size', function (done) {
sharp(fixtures.inputJpg).rotate(90).resize(320, 240).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();
});
sharp(fixtures.inputJpg)
.rotate(90)
.resize(320, 240)
.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();
});
});
it('Rotate by 30 degrees, respecting output input size', function (done) {
sharp(fixtures.inputJpg).rotate(30).resize(320, 240).toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(397, info.width);
assert.strictEqual(368, info.height);
done();
});
it('Resize then rotate by 30 degrees, respecting output input size', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 240)
.rotate(30)
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(397, info.width);
assert.strictEqual(368, info.height);
done();
});
});
[-3690, -450, -90, 90, 450, 3690].forEach(function (angle) {
@@ -141,8 +147,8 @@ describe('Rotation', function () {
it('Rotate by 270 degrees, rectangular output ignoring aspect ratio', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 240, { fit: sharp.fit.fill })
.rotate(270)
.resize(320, 240, { fit: sharp.fit.fill })
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(320, info.width);
@@ -300,6 +306,16 @@ describe('Rotation', function () {
)
);
it('Multiple rotate emits warning', () => {
let warningMessage = '';
const s = sharp();
s.on('warning', function (msg) { warningMessage = msg; });
s.rotate();
assert.strictEqual(warningMessage, '');
s.rotate();
assert.strictEqual(warningMessage, 'ignoring previous rotate options');
});
it('Flip - vertical', function (done) {
sharp(fixtures.inputJpg)
.resize(320)