Roblox backend: 60 Hz render cap (SetRenderRate) and MicroProfiler labels (SetProfiling)
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4DBug
@@ -1 +1 @@
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[[12, "imgui.lua"], [13741, "imgui_demo.lua"], [14674, "imgui_demo_2.lua"], [17749, "imgui_demo_apps.lua"], [19008, "imgui_demo_tools.lua"], [20334, "imgui_demo_widgets.lua"], [22258, "imgui_docking.lua"], [25386, "imgui_dragdrop.lua"], [25678, "imgui_draw.lua"], [30866, "imgui_h.lua"], [33079, "imgui_impl_roblox.lua"], [33866, "imgui_impl_roblox_fonts.lua"], [40269, "imgui_internal.lua"], [43439, "imgui_tables.lua"], [47786, "imgui_tabs.lua"], [48953, "imgui_widgets.lua"], [57477, "imstb_rectpack.lua"], [57923, "imstb_textedit.lua"], [59164, "imstb_truetype.lua"], [61632, "imstd_minstdio.lua"]]
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[[12, "imgui.lua"], [13741, "imgui_demo.lua"], [14674, "imgui_demo_2.lua"], [17749, "imgui_demo_apps.lua"], [19008, "imgui_demo_tools.lua"], [20334, "imgui_demo_widgets.lua"], [22258, "imgui_docking.lua"], [25386, "imgui_dragdrop.lua"], [25678, "imgui_draw.lua"], [30866, "imgui_h.lua"], [33079, "imgui_impl_roblox.lua"], [33903, "imgui_impl_roblox_fonts.lua"], [40306, "imgui_internal.lua"], [43476, "imgui_tables.lua"], [47823, "imgui_tabs.lua"], [48990, "imgui_widgets.lua"], [57514, "imstb_rectpack.lua"], [57960, "imstb_textedit.lua"], [59201, "imstb_truetype.lua"], [61669, "imstd_minstdio.lua"]]
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+41
-2
@@ -33561,10 +33561,18 @@ local function DestroyTiles(bd)
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bd.Tiles = {}
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end
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-- MicroProfiler labels, enabled with ImGui_ImplRoblox.SetProfiling(true)
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local profilebegin, profileend = debug.profilebegin, debug.profileend
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local profiling = false
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local function PB(name) if profiling then profilebegin(name) end end
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local function PE() if profiling then profileend() end end
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@native
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function ImGui_ImplRoblox_RenderDrawData(draw_data)
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local bd = ImGui_ImplRoblox_GetBackendData()
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PB("ImGui RenderDrawData")
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PB("ImGui textures")
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if draw_data.Textures ~= nil then
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for _, tex in draw_data.Textures:iter() do
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if tex.Status ~= ImTextureStatus.OK then
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@@ -33573,9 +33581,17 @@ function ImGui_ImplRoblox_RenderDrawData(draw_data)
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end
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end
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end
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PE()
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-- Render rate cap: textures are always updated (imgui expects it), tiles only at bd.RenderRate Hz
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if bd.RenderRate > 0 then
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local now = os.clock()
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if now + 0.002 < bd.NextRender then PE(); return end
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bd.NextRender = math.max(bd.NextRender + 1 / bd.RenderRate, now)
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end
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local sw, sh = floor(draw_data.DisplaySize.x), floor(draw_data.DisplaySize.y)
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if sw <= 0 or sh <= 0 then return end
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if sw <= 0 or sh <= 0 then PE(); return end
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local cols, rows = ceil(sw / TILE), ceil(sh / TILE)
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if cols ~= bd.TileCols or rows ~= bd.TileRows then
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DestroyTiles(bd)
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@@ -33592,6 +33608,7 @@ function ImGui_ImplRoblox_RenderDrawData(draw_data)
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end
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-- Pass 1: collect primitives, hash them into tiles
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PB("ImGui tile hash")
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local n = 0
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for _, draw_list in draw_data.CmdLists:iter() do
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local vtx, idx = draw_list.VtxBuffer.Data, draw_list.IdxBuffer.Data
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@@ -33666,7 +33683,10 @@ function ImGui_ImplRoblox_RenderDrawData(draw_data)
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end
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end
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PE()
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-- Pass 2: redraw + upload changed tiles
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PB("ImGui raster+upload")
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local force = bd.ForceRedraw
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bd.ForceRedraw = false
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for ty = 0, rows - 1 do
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@@ -33702,7 +33722,9 @@ function ImGui_ImplRoblox_RenderDrawData(draw_data)
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DrawTriangle(va, pr_b[p], vc, pr_t[p], cx0, cy0, cx1, cy1, tox, toy)
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end
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end
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PB("ImGui upload")
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tile.Image:WritePixelsBuffer(Vector2.zero, TILE_SIZE, buf)
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PE()
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end
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if not tile.Visible then
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tile.Visible = true
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@@ -33715,6 +33737,7 @@ function ImGui_ImplRoblox_RenderDrawData(draw_data)
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-- drop references so old vertex tables can be collected
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for k = n + 1, bd.LastPrimCount do pr_a[k], pr_b[k], pr_c[k], pr_d[k], pr_t[k] = nil, nil, nil, nil, nil end
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bd.LastPrimCount = n
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PE(); PE()
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end
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---------------------------------------------------------
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@@ -33738,7 +33761,7 @@ function ImGui_ImplRoblox_Init(parent, render_scale)
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local bd = {
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Time = os.clock(), Gui = gui, Connections = {},
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Textures = {}, TextureCount = 0, MouseX = -1, MouseY = -1,
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Tiles = {}, TileCols = 0, TileRows = 0, Scale = render_scale or 1, TilesActive = false, TH1 = {}, TH2 = {}, TN = {}, TL = {}, LastPrimCount = 0, ForceRedraw = true,
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Tiles = {}, TileCols = 0, TileRows = 0, Scale = render_scale or 1, TilesActive = false, RenderRate = 60, NextRender = 0, TH1 = {}, TH2 = {}, TN = {}, TL = {}, LastPrimCount = 0, ForceRedraw = true,
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}
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io.BackendPlatformUserData = bd
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@@ -33811,6 +33834,7 @@ function ImGui_ImplRoblox_Shutdown()
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end
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function ImGui_ImplRoblox_NewFrame()
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PB("ImGui NewFrame (backend)")
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local io = ImGui.GetIO()
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local bd = ImGui_ImplRoblox_GetBackendData()
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@@ -33839,8 +33863,18 @@ function ImGui_ImplRoblox_NewFrame()
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bd.TilesActive = want
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for _, tile in pairs(bd.Tiles) do tile.Label.Active = want end
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end
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PE()
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end
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--- Max tile redraws per second (default 60); 0 = every frame. imgui logic still runs every frame.
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function ImGui_ImplRoblox_SetRenderRate(hz)
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ImGui_ImplRoblox_GetBackendData().RenderRate = hz or 0
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end
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--- Toggle MicroProfiler labels (debug.profilebegin) for the backend
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function ImGui_ImplRoblox_SetProfiling(enabled) profiling = enabled and true or false end
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local function ImGui_ImplRoblox_IsProfiling() return profiling end
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function ImGui_ImplRoblox_SetRenderScale(scale)
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local bd = ImGui_ImplRoblox_GetBackendData()
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if scale == bd.Scale then return end
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@@ -33857,6 +33891,9 @@ ImGui_ImplRoblox = {
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RenderDrawData = ImGui_ImplRoblox_RenderDrawData,
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AddFile = ImGui_ImplRoblox_AddFile,
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SetRenderScale = ImGui_ImplRoblox_SetRenderScale,
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SetRenderRate = ImGui_ImplRoblox_SetRenderRate,
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SetProfiling = ImGui_ImplRoblox_SetProfiling,
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IsProfiling = ImGui_ImplRoblox_IsProfiling,
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}
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return true -- [Roblox] ModuleScripts must return exactly one value
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@@ -62244,6 +62281,8 @@ return {
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ImGui_ImplRoblox_Init = ImGui_ImplRoblox_Init,
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ImGui_ImplRoblox_NewFrame = ImGui_ImplRoblox_NewFrame,
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ImGui_ImplRoblox_RenderDrawData = ImGui_ImplRoblox_RenderDrawData,
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ImGui_ImplRoblox_SetProfiling = ImGui_ImplRoblox_SetProfiling,
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ImGui_ImplRoblox_SetRenderRate = ImGui_ImplRoblox_SetRenderRate,
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ImGui_ImplRoblox_SetRenderScale = ImGui_ImplRoblox_SetRenderScale,
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ImGui_ImplRoblox_Shutdown = ImGui_ImplRoblox_Shutdown,
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ImGui_ImplRoblox_UpdateTexture = ImGui_ImplRoblox_UpdateTexture,
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