139 lines
5.0 KiB
Lua
139 lines
5.0 KiB
Lua
-- ─────────────────────────────────────────────────────────────────────────────
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-- Monitors
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--
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-- Kuycon P20 on DP-2: 4500x3000 @ 60Hz, 1.5x fractional scale.
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-- 4500/1.5 = 3000 and 3000/1.5 = 2000, both integers, so this is a "clean"
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-- fractional scale and Hyprland will not complain.
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--
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-- On HDR --------------------------------------------------------------------
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-- GNOME runs this panel in bt2100/HDR. Hyprland CAN do that (cm = "hdr"), but
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-- on 0.56.x it currently breaks screencopy: grim screenshots come back empty,
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-- and OBS/Sunshine capture and hyprlock's blurred background go with them.
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-- Root cause is still open upstream. Since screen capture matters more here
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-- than an HDR desktop, the desktop runs SDR at 10-bit and HDR is handed to
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-- fullscreen games only, via render.cm_auto_hdr in looks.lua.
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--
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-- To try full-time HDR anyway, set cm = "hdr" below (or override it in
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-- overrides.lua) and read the notes in that file first.
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-- ─────────────────────────────────────────────────────────────────────────────
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local prefs = require("prefs")
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-- Per-output overrides written by Panama Settings, keyed by output name:
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-- { ["DP-2"] = { mode = "3840x2160@60", scale = 2, transform = 0 } }
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--
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-- Only mode, scale, and transform are read. Colour management and bit depth
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-- stay here, because those are the settings with a documented reason attached
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-- (see the header) rather than preferences, and a settings page has no way to
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-- explain the screencopy tradeoff at the moment you would be changing it.
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local displays = prefs.get("displays", {})
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if type(displays) ~= "table" then
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displays = {}
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end
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local function mode_dimensions(mode)
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if type(mode) ~= "string" then
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return nil, nil
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end
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local width, height, refresh = mode:match("^(%d+)x(%d+)@(%d+%.%d+)$")
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if width == nil then
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width, height, refresh = mode:match("^(%d+)x(%d+)@(%d+)$")
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end
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width, height, refresh = tonumber(width), tonumber(height), tonumber(refresh)
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if width == nil or height == nil or refresh == nil
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or width <= 0 or height <= 0 or refresh <= 0 then
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return nil, nil
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end
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return width, height
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end
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local function valid_mode(mode)
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local width = mode_dimensions(mode)
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return width ~= nil
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end
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local function valid_scale(mode, scale)
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local width, height = mode_dimensions(mode)
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if width == nil or type(scale) ~= "number" or scale ~= scale
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or scale <= 0 or scale > 4 then
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return false
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end
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local logical_width = width / scale
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local logical_height = height / scale
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return math.abs(logical_width - math.floor(logical_width + 0.5)) < 0.0001
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and math.abs(logical_height - math.floor(logical_height + 0.5)) < 0.0001
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end
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local function valid_transform(transform)
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return type(transform) == "number"
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and transform == math.floor(transform)
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and transform >= 0
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and transform <= 3
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end
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local function display_entry(output)
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if type(output) ~= "string" or output == ""
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or output:match("^[%w_.-]+$") == nil then
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return nil
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end
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local entry = displays[output]
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if type(entry) ~= "table" then
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return nil
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end
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if not valid_mode(entry.mode)
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or not valid_scale(entry.mode, entry.scale)
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or not valid_transform(entry.transform) then
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return nil
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end
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return entry
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end
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local shipped_mode = "4500x3000@60"
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local shipped_scale = 1.5
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local shipped_transform = 0
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local dp2 = display_entry("DP-2")
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hl.monitor({
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output = "DP-2",
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mode = dp2 and dp2.mode or shipped_mode,
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position = "0x0",
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scale = dp2 and dp2.scale or shipped_scale,
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transform = dp2 and dp2.transform or shipped_transform,
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-- 10-bit output. 4500x3000@60 at 10bpc is ~24 Gbps, right at the edge of
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-- DP 1.4 HBR3, so this relies on DSC. If the display fails to light up or
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-- falls back to a lower mode, drop this line first.
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bitdepth = 10,
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-- "auto" = sRGB at 8bpc, wide gamut at 10bpc. Not HDR; see header.
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cm = "auto",
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})
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-- Other connected outputs use the same validated per-output store. They keep
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-- automatic placement and the compositor's normal colour policy; DP-2 alone
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-- carries the panel-specific 10-bit policy documented above.
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for output, _ in pairs(displays) do
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if output ~= "DP-2" then
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local entry = display_entry(output)
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if entry ~= nil then
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hl.monitor({
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output = output,
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mode = entry.mode,
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position = "auto",
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scale = entry.scale,
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transform = entry.transform,
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})
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end
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end
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end
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-- Any monitor not named above: sane defaults rather than nothing.
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hl.monitor({
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output = "",
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mode = "preferred",
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position = "auto",
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scale = "auto",
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})
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return true
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