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280
lua/pac3/libraries/urltex.lua
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280
lua/pac3/libraries/urltex.lua
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--[[
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| This file was obtained through the combined efforts
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| of Madbluntz & Plymouth Antiquarian Society.
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|
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| Credits: lifestorm, Gregory Wayne Rossel JR.,
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| Maloy, DrPepper10 @ RIP, Atle!
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|
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| Visit for more: https://plymouth.thetwilightzone.ru/
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--]]
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local urltex = {}
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urltex.TextureSize = 1024
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urltex.ActivePanel = urltex.ActivePanel or NULL
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urltex.Queue = urltex.Queue or {}
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urltex.Cache = urltex.Cache or {}
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concommand.Add("pac_urltex_clear_cache", function()
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urltex.Cache = {}
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urltex.Queue = {}
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end)
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if urltex.ActivePanel:IsValid() then
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urltex.ActivePanel:Remove()
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end
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local enable = CreateClientConVar("pac_enable_urltex", "1", true)
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local EMPTY_FUNC = function() end
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local function findFlag(url, flagID)
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local startPos, endPos = url:find(flagID)
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if not startPos then return url, false end
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if url:sub(endPos + 1, endPos + 1) == ' ' or url:sub(startPos - 1, startPos - 1) == ' ' then
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url = url:gsub(' ?' .. flagID .. ' ?', '')
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return url, true
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end
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return url, false
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end
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function urltex.GetMaterialFromURL(url, callback, skip_cache, shader, size, size_hack, additionalData)
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if size_hack == nil then
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size_hack = true
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end
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additionalData = additionalData or {}
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shader = shader or "VertexLitGeneric"
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if not enable:GetBool() then return end
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local noclampS, noclamp, noclampT
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url, noclampS = findFlag(url, 'noclamps')
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url, noclampT = findFlag(url, 'noclampt')
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url, noclamp = findFlag(url, 'noclamp')
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local urlAddress = url
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local urlIndex = url
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if noclamp then
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urlIndex = urlIndex .. ' noclamp'
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elseif noclampS then
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urlIndex = urlIndex .. ' noclampS'
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elseif noclampT then
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urlIndex = urlIndex .. ' noclampT'
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end
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noclamp = noclamp or noclampS and noclampT
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local renderTargetNeeded =
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noclampS or
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noclamp or
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noclampT
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if isfunction(callback) and not skip_cache and urltex.Cache[urlIndex] then
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local tex = urltex.Cache[urlIndex]
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local mat = CreateMaterial("pac3_urltex_" .. pac.Hash(), shader, additionalData)
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mat:SetTexture("$basetexture", tex)
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callback(mat, tex)
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return
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end
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callback = callback or EMPTY_FUNC
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if urltex.Queue[urlIndex] then
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table.insert(urltex.Queue[urlIndex].callbacks, callback)
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else
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urltex.Queue[urlIndex] = {
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url = urlAddress,
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urlIndex = urlIndex,
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callbacks = {callback},
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tries = 0,
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size = size,
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size_hack = size_hack,
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shader = shader,
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noclampS = noclampS,
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noclampT = noclampT,
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noclamp = noclamp,
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rt = renderTargetNeeded,
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additionalData = additionalData
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}
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end
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end
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function urltex.Think()
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if not pac.IsEnabled() then return end
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if table.Count(urltex.Queue) > 0 then
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for url, data in pairs(urltex.Queue) do
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-- when the panel is gone start a new one
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if not urltex.ActivePanel:IsValid() then
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urltex.StartDownload(data.url, data)
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end
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end
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urltex.Busy = true
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else
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urltex.Busy = false
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end
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end
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timer.Create("urltex_queue", 0.1, 0, urltex.Think)
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function urltex.StartDownload(url, data)
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if urltex.ActivePanel:IsValid() then
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urltex.ActivePanel:Remove()
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end
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url = pac.FixUrl(url)
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local size = tonumber(data.size or urltex.TextureSize)
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local id = "urltex_download_" .. url
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local pnl
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local frames_passed = 0
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local function createDownloadPanel()
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pnl = vgui.Create("DHTML")
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-- Tested in PPM/2, this code works perfectly
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pnl:SetVisible(false)
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pnl:SetSize(size, size)
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pnl:SetHTML([[<html>
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<head>
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<style type="text/css">
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html
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{
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overflow:hidden;
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]] .. (data.size_hack and "margin: -8px -8px;" or "margin: 0px 0px;") .. [[
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}
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</style>
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<script>
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window.onload = function() {
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setInterval(function() {
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console.log('REAL_FRAME_PASSED');
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}, 50);
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};
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</script>
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</head>
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<body>
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<img src="]] .. url .. [[" alt="" width="]] .. size .. [[" height="]] .. size .. [[" />
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</body>
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</html>]])
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pnl:Refresh()
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function pnl:ConsoleMessage(msg)
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if msg == 'REAL_FRAME_PASSED' then
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frames_passed = frames_passed + 1
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end
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end
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urltex.ActivePanel = pnl
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end
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local go = false
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local time = 0
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local timeoutNum = 0
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local think
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local function onTimeout()
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timeoutNum = timeoutNum + 1
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if IsValid(pnl) then pnl:Remove() end
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if timeoutNum < 5 then
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pac.dprint("material download %q timed out.. trying again for the %ith time", url, timeoutNum)
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-- try again
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go = false
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time = 0
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createDownloadPanel()
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else
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pac.dprint("material download %q timed out for good", url, timeoutNum)
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pac.RemoveHook("Think", id)
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timer.Remove(id)
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urltex.Queue[data.urlIndex] = nil
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end
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end
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function think()
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-- panel is no longer valid
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if not pnl:IsValid() then
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onTimeout()
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return
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end
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-- give it some time.. IsLoading is sometimes lying, especially on chromium branch
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if not go and not pnl:IsLoading() then
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time = pac.RealTime + 1
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go = true
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end
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if go and time < pac.RealTime and frames_passed > 20 then
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pnl:UpdateHTMLTexture()
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local html_mat = pnl:GetHTMLMaterial()
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if html_mat then
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local crc = pac.Hash()
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local vertex_mat = CreateMaterial("pac3_urltex_" .. crc, data.shader, data.additionalData)
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local tex = html_mat:GetTexture("$basetexture")
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tex:Download()
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vertex_mat:SetTexture("$basetexture", tex)
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-- tex:Download()
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urltex.Cache[data.urlIndex] = tex
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pac.RemoveHook("Think", id)
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timer.Remove(id)
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urltex.Queue[data.urlIndex] = nil
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local rt
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if data.rt then
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local textureFlags = 0
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textureFlags = textureFlags + 4 -- clamp S
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textureFlags = textureFlags + 8 -- clamp T
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textureFlags = textureFlags + 16 -- anisotropic
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textureFlags = textureFlags + 256 -- no mipmaps
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-- textureFlags = textureFlags + 2048 -- Texture is procedural
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textureFlags = textureFlags + 32768 -- Texture is a render target
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-- textureFlags = textureFlags + 67108864 -- Usable as a vertex texture
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if data.noclamp then
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textureFlags = textureFlags - 4
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textureFlags = textureFlags - 8
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elseif data.noclampS then
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textureFlags = textureFlags - 4
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elseif data.noclampT then
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textureFlags = textureFlags - 8
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end
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local vertex_mat2 = CreateMaterial("pac3_urltex_" .. crc .. '_hack', 'UnlitGeneric', data.additionalData)
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vertex_mat2:SetTexture("$basetexture", tex)
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rt = GetRenderTargetEx("pac3_urltex_" .. crc, size, size, RT_SIZE_NO_CHANGE, MATERIAL_RT_DEPTH_NONE, textureFlags, CREATERENDERTARGETFLAGS_UNFILTERABLE_OK, IMAGE_FORMAT_RGB888)
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render.PushRenderTarget(rt)
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render.Clear(0, 0, 0, 255, false, false)
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cam.Start2D()
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surface.SetMaterial(vertex_mat2)
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surface.SetDrawColor(255, 255, 255)
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surface.DrawTexturedRect(0, 0, size, size)
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cam.End2D()
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render.PopRenderTarget()
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vertex_mat:SetTexture('$basetexture', rt)
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urltex.Cache[data.urlIndex] = rt
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end
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timer.Simple(0, function()
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pnl:Remove()
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end)
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if data.callbacks then
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for i, callback in pairs(data.callbacks) do
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callback(vertex_mat, rt or tex)
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end
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end
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end
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end
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end
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pac.AddHook("Think", id, think)
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-- 5 sec max timeout, 5 maximal timeouts
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timer.Create(id, 5, 5, onTimeout)
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createDownloadPanel()
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end
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return urltex
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