713146 - BMP encoder with INPUT_FORMAT_RGBA converts data to RGB regardless of output format

Status: ASSIGNED

(Core :: Graphics: ImageLib, defect)

Description

[Kelsey Gilbert [:jgilbert]]

For INPUT_FORMAT_HOSTARGB, during encoding, the output is converted to RGB or RGBA based on the output bpp setting, which is acceptable. But, when encoding with INPUT_FORMAT_RGBA, we down-convert to RGB unconditionally.

Comment 1

[Kelsey Gilbert [:jgilbert]]

Attachment: Allow for encoding RGBA BMPs from INPUT_FORMAT_RGBA

Try run:
https://tbpl.mozilla.org/?tree=Try&rev=ed4b016c13ce

Comment 2

[Kelsey Gilbert [:jgilbert]]

I plan on landing this together with bug 713143.