diff options
Diffstat (limited to 'adapter/img/sixel.nim')
| -rw-r--r-- | adapter/img/sixel.nim | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/adapter/img/sixel.nim b/adapter/img/sixel.nim index f813ae77..676197bf 100644 --- a/adapter/img/sixel.nim +++ b/adapter/img/sixel.nim @@ -8,7 +8,11 @@ # follows: # # * DCS q set-raster-attributes is omitted. -# * 32-bit binary number in header indicates length of following palette. +# * 32-bit binary number in header indicates the end of the following +# palette. (Note: this includes this 32-bit number's and the following 8-bit +# number's length as well.) +# * This is followed by an 8-bit number indicating whether the image includes +# transparent pixels. # * A lookup table is appended to the file end, which includes (height + 5) / 6 # 32-bit binary numbers indicating the start index of every 6th row. # @@ -384,7 +388,7 @@ proc encode(img: openArray[RGBAColorBE]; width, height, offx, offy, cropw: int; let nodes = root.flatten(outs, palette) if halfdump: # prepend prelude size - let L = outs.len - 4 - preludeLenPos # subtract length field + let L = outs.len - preludeLenPos outs.setU32BE(uint32(L), preludeLenPos) let os = newPosixStream(STDOUT_FILENO) let L = width * height |