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This commit is contained in:
Ryan Oldenburg 2021-12-11 18:06:11 -06:00
parent 18a81b3d0e
commit 2c2e35bff5
1 changed files with 8 additions and 0 deletions
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8
src/pixie/masks.nim
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@ -45,9 +45,17 @@ template unsafe*(src: Mask): UnsafeMask =
UnsafeMask(mask: src) UnsafeMask(mask: src)
template `[]`*(view: UnsafeMask, x, y: int): uint8 = template `[]`*(view: UnsafeMask, x, y: int): uint8 =
## Gets a value from (x, y) coordinates.
## * No bounds checking *
## Make sure that x, y are in bounds.
## Failure in the assumptions will case unsafe memory reads.
view.mask.data[view.mask.dataIndex(x, y)] view.mask.data[view.mask.dataIndex(x, y)]
template `[]=`*(view: UnsafeMask, x, y: int, color: uint8) = template `[]=`*(view: UnsafeMask, x, y: int, color: uint8) =
## Sets a value from (x, y) coordinates.
## * No bounds checking *
## Make sure that x, y are in bounds.
## Failure in the assumptions will case unsafe memory writes.
view.mask.data[view.mask.dataIndex(x, y)] = color view.mask.data[view.mask.dataIndex(x, y)] = color
proc `[]`*(mask: Mask, x, y: int): uint8 {.inline, raises: [].} = proc `[]`*(mask: Mask, x, y: int): uint8 {.inline, raises: [].} =