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tga_encoder
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33 Commits

Author SHA1 Message Date
Nils Dagsson Moskopp 0272fa5ccd
Change scanline order names 
The scanline order ”bottom-top” has been changed to ”bottom_top”.
The scanline order “top-bottom” has been changed to “top_bottom”.

The scanline order names were changed so that API consumers can check if
“tga_encoder.features.scanline_order.top_bottom” is truthy instead of
having to check “tga_encoder.features.scanline_order["top-bottom"]”.

This is a breaking change, but since no release of tga_encoder happened
since commit 01bcbbf927 which allowed the
scanline order to be specified, it can not affect any mod on ContentDB.
 2023-11-28 21:41:54 +01:00
Nils Dagsson Moskopp e599c9fe83
Use keys with truthy values in features table 
If the features table uses keys with truthy values, it is easy to check
for the presence of some feature by checking if the corresponding table
entry (e.g. “tga_encoder.features.color_format.A1R5G5B5”) is truthy.
 2023-11-27 23:07:06 +01:00
Nils Dagsson Moskopp c0cc855a02
Refactor encoding of uncompressed A1R5G5B5 images 2023-10-18 05:08:16 +02:00
Nils Dagsson Moskopp 2b4faee266
Refactor encoding of compressed A1R5G5B5 images 2023-10-18 05:02:41 +02:00
Nils Dagsson Moskopp 619e49d3b7
Encode alpha channel for compressed A1R5G5B5 images 2023-10-18 02:12:48 +02:00
Nils Dagsson Moskopp 2e0471c81f
Encode alpha channel for uncompressed A1R5G5B5 images 2023-10-18 02:12:48 +02:00
Nils Dagsson Moskopp 48d94720c1
Add features table 2023-10-17 12:33:29 +02:00
Nils Dagsson Moskopp 01bcbbf927
Allow encoding with top-bottom scanline order 2023-10-16 21:15:40 +02:00
Nils Dagsson Moskopp bb68ceb38d
Do not encode images with illegal colormap indexes 2023-09-22 20:06:21 +02:00
Nils Dagsson Moskopp 4dd3833f3b
Move encoding format heuristics from image:save() to image:encode() 2023-09-18 16:45:31 +02:00
Nils Dagsson Moskopp 685bdcb379
Allow encoding with B8G8R8A8 colormap 2022-05-19 18:26:41 +02:00
Nils Dagsson Moskopp 45e405982a
Allow encoding with A1R5G5B5 colormap 2022-05-16 18:48:18 +02:00
Nils Dagsson Moskopp e83894fcfa
Treat empty colormap as no colormap 2022-05-16 17:56:53 +02:00
Nils Dagsson Moskopp 9f9b78eed9
Allow color-mapped encoding for RGB images 2022-05-16 17:28:16 +02:00
Nils Dagsson Moskopp ed061e68ff
Allow RLE encoding for RGBA images 2022-05-16 13:16:23 +02:00
Nils Dagsson Moskopp 1f9c446a98
Assert that pixel data is encoded 2022-05-16 03:21:52 +02:00
Nils Dagsson Moskopp 7b94fc026d
Allow to specify color format 2022-05-16 02:48:51 +02:00
Nils Dagsson Moskopp fa23775bf9
Measure pixel_depth in bits everywhere 2022-05-16 01:54:21 +02:00
Nils Dagsson Moskopp 36ee45ebe3
Add RGBA support (only RAW encoding) 2022-05-16 01:39:33 +02:00
Nils Dagsson Moskopp 2112637faf
Use HSP for RGB-to-BW8 conversion 2022-05-15 19:58:19 +02:00
Nils Dagsson Moskopp 5b79bc6fb7
Set default encoding to R8G8B8 RAW 
This the most trivial RGB encoding the encoder supports. Setting
it prevents a crash related to BW8 only supporting RAW encoding.
 2022-05-15 19:31:24 +02:00
Nils Dagsson Moskopp 759b0a188f
Allow saving R8G8B8 images as BW8 2022-05-15 19:23:26 +02:00
Nils Dagsson Moskopp 376b6404b2
Allow RAW or RLE encoding for true-color images 2022-05-15 15:56:18 +02:00
Nils Dagsson Moskopp 9bd1702d60
Encode image only when saving it to a file 2022-05-15 14:58:12 +02:00
Nils Dagsson Moskopp 25b7b30945
Allow encoding grayscale images as BW8 2022-05-14 22:41:52 +02:00
Nils Dagsson Moskopp 9af0719df8
Allow encoding RGB images as B8G8R8 2022-05-14 21:56:42 +02:00
Nils Dagsson Moskopp 1b48c3f539
Use raw packets in RLE compression in tga_encoder 2022-05-14 21:52:08 +02:00
Nils Dagsson Moskopp 13552f16f2
Reduce TGA filesize by 25% by using 16-bit colors 2022-05-14 21:52:07 +02:00
Nils Dagsson Moskopp adb8e45d67
Fix TGA file writing on Windows 
Before this patch, the tga_encoder mod would write corrupted TGA files
on Windows: Bytes that looked like newlines were replaced by a carriage
return and a newline.
 2022-05-14 20:21:59 +02:00
Nils Dagsson Moskopp 3f60b5baa6
Speed up TGA encoding by creating fewer strings 2022-05-14 20:21:58 +02:00
Nils Dagsson Moskopp 52e5c955f0
Use RLE compression in tga_encoder 2022-05-14 20:21:58 +02:00
Lizzy Fleckenstein b88579b52e
Add updated tga_encoder 2022-05-14 20:21:58 +02:00
Lizzy Fleckenstein eaa4dc99d7
Initial import 2022-05-14 20:21:52 +02:00