CanvasUtilities Replace pixel iterator.

behreajj · Oct 27, 2024 · 457efdf · 457efdf
1 parent be7dead
commit 457efdf
Showing 1 changed file with 21 additions and 10 deletions.
diff --git a/support/canvasutilities.lua b/support/canvasutilities.lua
@@ -998,25  998,36 @@ function CanvasUtilities.spectrum(
             local aActive <const> = args.spectrumAlpha --[[@as number]]
 
             local floor <const> = math.floor
             local strpack <const> = string.pack
             local lchTosRgb <const> = Clr.srLchTosRgb
             local toHex <const> = Clr.toHex
 
-            local image <const> = Image(wVrf, hVrf)
-            local pxItr <const> = image:pixels()
-            for pixel in pxItr do
-                local x <const> = pixel.x
-                local y <const> = pixel.y
             ---@type string[]
             local byteArr <const> = {}
             local areaCanvas <const> = wVrf * hVrf
             local i = 0
             while i < areaCanvas do
                 local x <const> = i % wVrf
                 local y <const> = i // wVrf
 
                 local hex = 0xff000000
                 if y < spectrumHeight then
-                    pixel(toHex(lchTosRgb(
-                        100.0 - y * yToLgt, cActive, x * xToHue, 1.0)))
                     hex = toHex(lchTosRgb(
                         100.0 - y * yToLgt, cActive, x * xToHue, 1.0))
                 elseif y < chrBarThresh then
-                    pixel(toHex(lchTosRgb(
-                        lActive, x * xToChr, hActive, 1.0)))
                     hex = toHex(lchTosRgb(
                         lActive, x * xToChr, hActive, 1.0))
                 else
                     local v <const> = floor(x * xToAlpha255   0.5)
-                    pixel(0xff000000 | v << 0x10 | v << 0x08 | v)
                     hex = 0xff000000 | v << 0x10 | v << 0x08 | v
                 end
 
                 i = i   1
                 byteArr[i] = strpack("<I4", hex)
             end
 
             local image <const> = Image(wVrf, hVrf)
             image.bytes = table.concat(byteArr)
             context:drawImage(image,
                 Rectangle(0, 0, wVrf, hVrf),
                 Rectangle(0, 0, wVrf, hVrf))