[bug #54496] gui: NSBitmapImageRep does not support BMP

[Ivan Vučica]

URL:
<http://savannah.gnu.org/bugs/?54496>

Summary: gui: NSBitmapImageRep does not support BMP
Project: GNUstep
Submitted by: ivucica
Submitted on: Sat 11 Aug 2018 09:25:54 PM UTC
Category: Gui/AppKit
Severity: 2 - Minor
Item Group: Change Request
Status: Confirmed
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any

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Details:

Currently there is no support for BMP in NSBitmapImageRep. This propagates
further, so that NSImage cannot load BMPs either.

Looking at how NSBitmapImageRep is implemented, this seems easy enough,
practically a starter project.

For instance, I wanted to display /sys/firmware/acpi/bgrt/image which is
populated by the ACPI BGRT Linux kernel module on many modern UEFI machines.
This comes from an ACPI table used by operating systems such as Windows to
display an image during boot that matches what is displayed on the POST
screen.






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[Yavor Doganov]

Follow-up Comment #1, bug #54496 (project gnustep):

BMP is supported through ImageMagick, if the library was configured with
--enable-imagemagick. On my system, NSImage +imageFileTypes returns 242 types
(including 3 variants of the BMP format).