13 Commits

Author	SHA1	Message	Date
Jeroen van Rijn	afb6ebd21e	Fix gray+alpha alpha extract.	2021-05-04 17:48:43 +02:00
Jeroen van Rijn	9a39ce6b75	Change General_Error.OK to nil	2021-05-03 15:38:43 +02:00
Jeroen van Rijn	59b3c472ca	Convert core:compress and core:image error checks to new union comparison. ... No more need for `is_kind(err, Error_Value)`, just test err == Error_Value.	2021-05-03 15:08:34 +02:00
Jeroen van Rijn	448f834b28	Remove debug print in image helper.	2021-05-03 01:23:03 +02:00
Jeroen van Rijn	3160a6a12c	Don't need other path for grayscale output.	2021-05-02 21:11:06 +02:00
Jeroen van Rijn	7d534769d6	Add new PNG post processing options.	2021-05-02 20:38:30 +02:00
Jeroen van Rijn	433d742183	Fix Paeth for bit depth < 8.	2021-05-01 20:39:00 +02:00
Jeroen van Rijn	0659a11a1a	PNG: Fix tRNS handling.	2021-05-01 18:24:31 +02:00
Jeroen van Rijn	db1ef078ff	Fix a few more cases in which bKGD wasn't properly applied.	2021-05-01 16:05:13 +02:00
Jeroen van Rijn	a02bcd3bfd	PNG: Fix test for when premultiplication is needed.	2021-05-01 13:16:47 +02:00
gingerBill	5f617c56e1	Minor stylistic code changes to compress and image packages	2021-04-30 10:58:29 +01:00
Jeroen van Rijn	06f1eaa153	Use regular allocator from png+gzip's load_from_file. ... I would've used `os.stream_from_handle`, but: - Parts of it seem to be implemented for Windows only at the moment. - PNG's `peek_data` using that stream didn't manage to rewind and thus tried to parse the data after the header as the header. Two things must happen: - The `os.stream_from_handle` implementation needs to be fixed. - PNG and GZIP's parsers need to be able to handle streams that can't rewind or seek (backward). Those fixes are on my TODO list but are exceed the scope of this patch.	2021-04-30 09:35:43 +02:00
Jeroen van Rijn	58e023e0cf	Add compress and image to core.	2021-04-30 00:21:52 +02:00