bug/imgui-luau
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Library perf (draw-data identical): layout core (no ImVec2 __index in ItemSize, inlined ID/style/clip stacks, scalar ItemAdd/IsClippedEx/CalcItemSize/GetColorU32), text + widgets (scalar TextEx/ButtonEx/Checkbox/Slider/Drag/Selectable/TreeNode, word-wrap memo), tables (in-place clip rects, no per-row/cell temporaries, @native cell functions, scalar ClipWith), draw list (PrimRectXY, scalar AddRect/AddRectFilled/AddLine/PathRect/arcs)

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This commit is contained in:
4DBug
2026-10-14 23:27:23 -05:00
parent b71e29ee35
commit ed53d0683e
9 changed files with 2213 additions and 1255 deletions
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imgui_internal.lua
+18 -3
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@@ -837,14 +837,21 @@ function IM_RECT:GetBR() return ImVec2(self.Max.x, self.Max.y) end -- Bottom-rig
--- @param r ImRect
@native
function IM_RECT:ClipWith(r)
ImVec2_Copy(self.Min, ImMax(self.Min, r.Min)); ImVec2_Copy(self.Max, ImMin(self.Max, r.Max))
-- [Luau] scalar math, no temporary ImVec2 (= ImMax(Min, r.Min) / ImMin(Max, r.Max))
local smin, smax, rmin, rmax = self.Min, self.Max, r.Min, r.Max
smin.x = mathMax(smin.x, rmin.x); smin.y = mathMax(smin.y, rmin.y)
smax.x = mathMin(smax.x, rmax.x); smax.y = mathMin(smax.y, rmax.y)
end
-- Full version, ensure both points are fully clipped.
--- @param r ImRect
@native
function IM_RECT:ClipWithFull(r)
ImVec2_Copy(self.Min, ImClamp(self.Min, r.Min, r.Max)); ImVec2_Copy(self.Max, ImClamp(self.Max, r.Min, r.Max))
-- [Luau] scalar math, no temporary ImVec2 (= ImClamp(Min/Max, r.Min, r.Max))
local smin, smax, rmin, rmax = self.Min, self.Max, r.Min, r.Max
local min_x, min_y, max_x, max_y = rmin.x, rmin.y, rmax.x, rmax.y
smin.x = mathMax(min_x, mathMin(smin.x, max_x)); smin.y = mathMax(min_y, mathMin(smin.y, max_y))
smax.x = mathMax(min_x, mathMin(smax.x, max_x)); smax.y = mathMax(min_y, mathMin(smax.y, max_y))
end
--- @param p ImRect|ImVec2
@@ -983,7 +990,15 @@ function MT.ImDrawList:PathClear() self._Path:clear() end
--- @param pos ImVec2
@native
function MT.ImDrawList:PathLineTo(pos) self._Path:push_back(pos) end
function MT.ImDrawList:PathLineTo(pos)
-- [Luau] inline self._Path:push_back(pos) (ImVec2_TCopy into the preallocated slot)
local path = self._Path
local n = path.Size + 1
if n > path.Capacity then path:push_back(pos) return end
local dest = path.Data[n]
dest.x = pos.x; dest.y = pos.y
path.Size = n
end
function MT.ImDrawList:PathLineToMergeDuplicate(pos)
local path_size = self._Path.Size