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addons/tfa-base/lua/tfa/modules/cl_tfa_rendertarget.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+
+-- Copyright (c) 2018-2020 TFA Base Devs
+
+-- Permission is hereby granted, free of charge, to any person obtaining a copy
+-- of this software and associated documentation files (the "Software"), to deal
+-- in the Software without restriction, including without limitation the rights
+-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+-- copies of the Software, and to permit persons to whom the Software is
+-- furnished to do so, subject to the following conditions:
+
+-- The above copyright notice and this permission notice shall be included in all
+-- copies or substantial portions of the Software.
+
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+-- SOFTWARE.
+
+TFA.DrawingRenderTarget = false
+
+local props = {
+	["$translucent"] = 1
+}
+
+local TFA_RTMat = CreateMaterial("tfa_rtmaterial", "UnLitGeneric", props) --Material("models/weapons/TFA/shared/optic")
+local TFA_RTScreen, TFA_RTScreenO = {}, {}
+local tgt
+local old_bt
+local ply, vm, wep
+local w, h
+local qualitySizes
+
+local function callFunc()
+	if wep.RTCode then
+		wep:RTCode(TFA_RTMat, w, h)
+	end
+
+	if wep:GetStatL("RTDrawEnabled") then
+		wep:CallAttFunc("RTCode", TFA_RTMat, w, h)
+	end
+end
+
+hook.Add("OnScreenSizeChanged", "TFA_rendertargets", function()
+	qualitySizes = nil
+	TFA_RTScreen, TFA_RTScreenO = {}, {}
+end)
+
+local function TFARenderScreen()
+	ply = GetViewEntity()
+
+	if not IsValid(ply) or not ply:IsPlayer() then
+		ply = LocalPlayer()
+
+		return
+	end
+
+	if not IsValid(vm) then
+		vm = ply:GetViewModel()
+
+		return
+	end
+
+	wep = ply:GetActiveWeapon()
+
+	if not IsValid(wep) or not wep.IsTFAWeapon then return end
+
+	if not wep.MaterialCached then
+		wep.MaterialCached = true
+		wep.MaterialCached_V = nil
+		wep.MaterialCached_W = nil
+	end
+
+	local skinStat = wep:GetStatL("Skin")
+	if isnumber(skinStat) then
+		if vm:GetSkin() ~= skinStat then
+			vm:SetSkin(skinStat)
+		end
+	end
+
+	if wep:GetStatL("MaterialTable_V") and not wep.MaterialCached_V then
+		wep.MaterialCached_V = {}
+		vm:SetSubMaterial()
+		local collectedKeys = table.GetKeys(wep:GetStatL("MaterialTable_V"))
+		table.Merge(collectedKeys, table.GetKeys(wep:GetStatL("MaterialTable")))
+
+		for _, k in pairs(collectedKeys) do
+			if k ~= "BaseClass" then
+				local v = wep:GetStatL("MaterialTable_V")[k]
+
+				if not wep.MaterialCached_V[k] then
+					vm:SetSubMaterial(k - 1, v)
+					wep.MaterialCached_V[k] = true
+				end
+			end
+		end
+	end
+
+	if not (wep:GetStatL("RTDrawEnabled") or wep.RTCode ~= nil) then return end
+	w, h = ScrW(), ScrH()
+
+	if not qualitySizes then
+		qualitySizes = {
+			[0] = h,
+			[1] = math.Round(h * 0.5),
+			[2] = math.Round(h * 0.25),
+			[3] = math.Round(h * 0.125),
+		}
+	end
+
+	local quality = TFA.RTQuality()
+
+	if wep:GetStatL("RTOpaque") then
+		tgt = TFA_RTScreenO[quality]
+
+		if not tgt then
+			local size = qualitySizes[quality]
+			tgt = GetRenderTargetEx("TFA_RT_ScreenO_" .. size, size, size, RT_SIZE_NO_CHANGE, MATERIAL_RT_DEPTH_SHARED, 0, CREATERENDERTARGETFLAGS_UNFILTERABLE_OK, IMAGE_FORMAT_RGB888)
+			TFA_RTScreenO[quality] = tgt
+		end
+	else
+		tgt = TFA_RTScreen[quality]
+
+		if not tgt then
+			local size = qualitySizes[quality]
+			tgt = GetRenderTargetEx("TFA_RT_Screen_" .. size, size, size, RT_SIZE_NO_CHANGE, MATERIAL_RT_DEPTH_SHARED, 0, CREATERENDERTARGETFLAGS_UNFILTERABLE_OK, IMAGE_FORMAT_RGBA8888)
+			TFA_RTScreen[quality] = tgt
+		end
+	end
+
+	TFA.LastRTUpdate = CurTime() + 0.01
+
+	render.PushRenderTarget(tgt)
+	render.Clear(0, 0, 0, 255, true, true)
+
+	TFA.DrawingRenderTarget = true
+	render.CullMode(MATERIAL_CULLMODE_CCW)
+	ProtectedCall(callFunc)
+	TFA.DrawingRenderTarget = false
+
+	render.SetScissorRect(0, 0, 0, 0, false)
+	render.PopRenderTarget()
+
+	if old_bt ~= tgt then
+		TFA_RTMat:SetTexture("$basetexture", tgt)
+		old_bt = tgt
+	end
+
+	if wep:GetStatL("RTMaterialOverride", -1) >= 0 then
+		wep:GetOwner():GetViewModel():SetSubMaterial(wep:GetStatL("RTMaterialOverride"), "!tfa_rtmaterial")
+	end
+end
+
+hook.Remove("PostRender", "TFASCREENS")
+
+hook.Add("PreRender", "TFASCREENS", function()
+	if not TFA.RT_DRAWING then
+		TFA.RT_DRAWING = true
+		TFARenderScreen()
+		TFA.RT_DRAWING = false
+	end
+end)
+
+TFA.RT_DRAWING = false