Move alpha-premultiplication information away from the FORMAT - farbfeld - suckless image format with conversion tools
(HTM) git clone git://git.suckless.org/farbfeld
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---
(DIR) commit 7b03f52a130a12355d87bc05f028db31963112cc
(DIR) parent dd22f4087d5e7420929575d1bbaf767d76395e9c
(HTM) Author: FRIGN <dev@frign.de>
Date: Sun, 31 Jan 2016 00:08:17 +0100
Move alpha-premultiplication information away from the FORMAT
and rather define it in the manual.
In the end, it doesn't influence the data structure and thus is not
part of the FORMAT-specification.
Diffstat:
M FORMAT | 23 +++++++++++------------
M farbfeld.5 | 6 +++---
2 files changed, 14 insertions(+), 15 deletions(-)
---
(DIR) diff --git a/FORMAT b/FORMAT
@@ -1,15 +1,14 @@
FARBFELD IMAGE FORMAT SPECIFICATION
- +--------+----------------------------------------------+
- | Bytes | Description |
- +--------+----------------------------------------------+
- | 8 | "farbfeld" magic value |
- +--------+----------------------------------------------+
- | 4 | 32-Bit BE unsigned integer (width) |
- +--------+----------------------------------------------+
- | 4 | 32-Bit BE unsigned integer (height) |
- +--------+----------------------------------------------+
- | [2222] | 4*16-Bit BE unsigned integers [RGBA] / pixel |
- | | pixels in rows, not alpha-premultiplied |
- +--------+----------------------------------------------+
+ +--------+-----------------------------------------------------------+
+ | Bytes | Description |
+ +--------+-----------------------------------------------------------+
+ | 8 | "farbfeld" magic value |
+ +--------+-----------------------------------------------------------+
+ | 4 | 32-Bit BE unsigned integer (width) |
+ +--------+-----------------------------------------------------------+
+ | 4 | 32-Bit BE unsigned integer (height) |
+ +--------+-----------------------------------------------------------+
+ | [2222] | 4*16-Bit BE unsigned integers [RGBA] / pixel, row-aligned |
+ +--------+-----------------------------------------------------------+
(DIR) diff --git a/farbfeld.5 b/farbfeld.5
@@ -15,10 +15,10 @@ BYTES DESCRIPTION
8 "farbfeld" magic value
4 32-Bit BE unsigned integer (width)
4 32-Bit BE unsigned integer (height)
-[2222] 4*16-Bit BE unsigned integers [RGBA] / pixel
- pixels in rows, not alpha-premultiplied
+[2222] 4*16-Bit BE unsigned integers [RGBA] / pixel, row-aligned
.Ed
-The RGB-data should be in sRGB.
+The RGB-data should be sRGB for best interoperability and not
+alpha-premultiplied.
.Sh USAGE
.Nm
provides