Skip to content

Fix non-simd magnifyBy2 #470

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
treeform merged 2 commits into from
Jul 22, 2022
Merged

Fix non-simd magnifyBy2 #470

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
ac52716
Fix non simd magnifyBy2
treeform Jul 22, 2022
21ac6af
f
treeform Jul 22, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 4 additions & 5 deletions src/pixie/masks.nim
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -152,18 +152,17 @@ proc magnifyBy2*(mask: Mask, power = 1): Mask {.raises: [PixieError].} =
x += 16
for x in x ..< mask.width:
let
value = mask.unsafe[x, y div scale]
scaledX = x * scale
idx = result.dataIndex(scaledX, y)
value = mask.unsafe[x, y]
resultIdx = result.dataIndex(x * scale, y * scale)
for i in 0 ..< scale:
result.data[idx + i] = value
result.data[resultIdx + i] = value
# Copy that row of values into (scale - 1) more rows
let rowStart = result.dataIndex(0, y * scale)
for i in 1 ..< scale:
copyMem(
result.data[rowStart + result.width * i].addr,
result.data[rowStart].addr,
result.width * 4
result.width
)

proc applyOpacity*(target: Mask, opacity: float32) {.hasSimd, raises: [].} =
Expand Down