1526941 - Make nsDisplayTransform smaller

Status: RESOLVED FIXED

(Core :: Web Painting, enhancement, P2)

Description

[Miko Mynttinen]

Currently transform display item uses 1KB of memory. We can shrink this to almost half by changing nsDisplayTransform to derive from nsDisplayWrapList, instead of having child display items in a member variable |nsDisplayTransform::mStoredList|.

Comment 1

[Miko Mynttinen]

Attachment: Bug 1526941 - Part 1: Simplify nsDisplayTransform constructors r=mattwoodrow

Comment 2

[Miko Mynttinen]

Attachment: Bug 1526941 - Part 2: Refactor nsDisplayWrapList::GetComponentAlphaBounds() and nsDisplayWrapList::GetOpaqueRegion() and move some of the logic to nsDisplayList r=mattwoodrow

Depends on D21184

Comment 3

[Miko Mynttinen]

Attachment: Bug 1526941 - Part 3: Use mozilla::UniquePtr for mTransformPreserves3D r=mattwoodrow

Depends on D21185

Comment 4

[Miko Mynttinen]

Attachment: Bug 1526941 - Part 4: Remove mStoredList from nsDisplayTransform r=mattwoodrow

Depends on D21186

Comment 5

[Miko Mynttinen]

Attachment: Bug 1526941 - Part 5: Rewrite nsDisplayTransform bounds calculations r=mattwoodrow

Depends on D21187

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/894310bf6264
Part 1: Simplify nsDisplayTransform constructors r=mattwoodrow
https://hg.mozilla.org/integration/autoland/rev/e2228efd2dc0
Part 2: Refactor nsDisplayWrapList::GetComponentAlphaBounds() and nsDisplayWrapList::GetOpaqueRegion() and move some of the logic to nsDisplayList r=mattwoodrow
https://hg.mozilla.org/integration/autoland/rev/57c633e6cb44
Part 3: Use mozilla::UniquePtr for mTransformPreserves3D r=mattwoodrow
https://hg.mozilla.org/integration/autoland/rev/c5a66f2c239f
Part 4: Remove mStoredList from nsDisplayTransform r=mattwoodrow
https://hg.mozilla.org/integration/autoland/rev/02fe822afa8c
Part 5: Rewrite nsDisplayTransform bounds calculations r=mattwoodrow

Comment 7

[Arthur Iakab [arthur_iakab]]

https://hg.mozilla.org/mozilla-central/rev/894310bf6264
https://hg.mozilla.org/mozilla-central/rev/e2228efd2dc0
https://hg.mozilla.org/mozilla-central/rev/57c633e6cb44
https://hg.mozilla.org/mozilla-central/rev/c5a66f2c239f
https://hg.mozilla.org/mozilla-central/rev/02fe822afa8c