Closed
Bug 1203744
Opened 10 years ago
Closed 10 years ago
SCREEN blending with unpremultiplied source data is broken in CompositorOGL
Categories
(Core :: Graphics: Layers, defect)
Core
Graphics: Layers
Tracking
()
RESOLVED
FIXED
mozilla43
| Tracking | Status | |
|---|---|---|
| firefox43 | --- | fixed |
People
(Reporter: mattwoodrow, Assigned: mattwoodrow)
Details
Attachments
(1 file)
|
2.27 KB,
patch
|
dvander
:
review+
|
Details | Diff | Splinter Review |
For unpremultiplied SCREEN we need a blending function that will give us:
Color = src*srcAlpha + (1-src*srcAlpha)*dest
The current code gets:
Color = src*srcAlpha + (1-src)*dest
There doesn't appear to be a way to do this using blend functions alone, so switching to use the shader for premultiplication.
Attachment #8659577 -
Flags: review?(dvander)
|
||
Updated•10 years ago
|
Attachment #8659577 -
Flags: review?(dvander) → review+
Status: NEW → RESOLVED
Closed: 10 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla43
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Description
•