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Merge "doc/*.txt: restrict code to 69 columns" into main

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This commit is contained in:
James Zern
2022-08-05 22:03:51 +00:00
committed by Gerrit Code Review
parent 4ad0e1895e 7a0a9935ed
commit fcbc2d78ab
2 changed files with 45 additions and 40 deletions
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54
doc/webp-container-spec.txt
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@ -511,8 +511,9 @@ Disposal method (D): 1 bit
if blend.A = 0 then
blend.RGB = 0
else
blend.RGB = (src.RGB * src.A +
dst.RGB * dst.A * (1 - src.A / 255)) / blend.A
blend.RGB =
(src.RGB * src.A +
dst.RGB * dst.A * (1 - src.A / 255)) / blend.A
~~~~~
* Alpha-blending SHOULD be done in linear color space, by taking into account
@ -760,33 +761,34 @@ canvas ← new image of size VP8X.canvasWidth x VP8X.canvasHeight with
loop_count ← ANIM.loopCount
dispose_method ← ANIM.disposeMethod
if loop_count == 0:
loop_count = ∞
loop_count = ∞
frame_params ← nil
assert next chunk in image_data is ANMF
for loop = 0..loop_count - 1
clear canvas to ANIM.background_color or application defined color
until eof or non-ANMF chunk
frame_params.frameX = Frame X
frame_params.frameY = Frame Y
frame_params.frameWidth = Frame Width Minus One + 1
frame_params.frameHeight = Frame Height Minus One + 1
frame_params.frameDuration = Frame Duration
frame_right = frame_params.frameX + frame_params.frameWidth
frame_bottom = frame_params.frameY + frame_params.frameHeight
assert VP8X.canvasWidth >= frame_right
assert VP8X.canvasHeight >= frame_bottom
for subchunk in 'Frame Data':
if subchunk.tag == "ALPH":
assert alpha subchunks not found in 'Frame Data' earlier
frame_params.alpha = alpha_data
else if subchunk.tag == "VP8 " OR subchunk.tag == "VP8L":
assert bitstream subchunks not found in 'Frame Data' earlier
frame_params.bitstream = bitstream_data
render frame with frame_params.alpha and frame_params.bitstream on
canvas with top-left corner at (frame_params.frameX,
frame_params.frameY), using dispose method dispose_method.
canvas contains the decoded image.
Show the contents of the canvas for frame_params.frameDuration * 1ms.
clear canvas to ANIM.background_color or application defined color
until eof or non-ANMF chunk
frame_params.frameX = Frame X
frame_params.frameY = Frame Y
frame_params.frameWidth = Frame Width Minus One + 1
frame_params.frameHeight = Frame Height Minus One + 1
frame_params.frameDuration = Frame Duration
frame_right = frame_params.frameX + frame_params.frameWidth
frame_bottom = frame_params.frameY + frame_params.frameHeight
assert VP8X.canvasWidth >= frame_right
assert VP8X.canvasHeight >= frame_bottom
for subchunk in 'Frame Data':
if subchunk.tag == "ALPH":
assert alpha subchunks not found in 'Frame Data' earlier
frame_params.alpha = alpha_data
else if subchunk.tag == "VP8 " OR subchunk.tag == "VP8L":
assert bitstream subchunks not found in 'Frame Data' earlier
frame_params.bitstream = bitstream_data
render frame with frame_params.alpha and frame_params.bitstream
on canvas with top-left corner at (frame_params.frameX,
frame_params.frameY), using dispose method dispose_method.
canvas contains the decoded image.
Show the contents of the canvas for
frame_params.frameDuration * 1ms.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~