mirror of
https://github.com/bryanthaboi/gen1recomp
synced 2026-09-26 13:33:27 -04:00
1jamie
2f6c5527f6
- Introduced PresentSync module to manage display synchronization. - Updated love.run() to handle display changes and resizing events with PresentSync. - Enhanced FrameCap logic to accommodate PresentSync requirements. - Modified VSync to report effective states and handle driver quirks. - Updated options menus to reflect PresentSync availability and restrictions. - Added tests to validate PresentSync functionality and its interaction with VSync settings. should address issue #1910 and issue #1958
83 lines
3.1 KiB
Lua
83 lines
3.1 KiB
Lua
return function(game)
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local U = dofile("tests/drivers/util.lua")
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local FrameCap = require("src.core.FrameCap")
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local RefreshRate = require("src.core.RefreshRate")
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local VSync = require("src.core.VSync")
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local PresentSync = require("src.core.PresentSync")
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local FRAMES = 300
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U.log("MAX FPS reads", FrameCap.label(game.save.options.fpsCap),
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"live cap", FrameCap.current,
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"(0 = DISPLAY, no software pacing)")
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U.log("VSYNC reads", VSync.label(game.save.options.vsync),
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"driver says",
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(love.window.getVSync and tostring(love.window.getVSync())) or "unknown")
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local sync = PresentSync.status()
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U.log("PresentSync",
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"linux=" .. tostring(sync.linux),
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"driver=" .. tostring(sync.driver),
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"nest=" .. tostring(sync.nest),
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"gamescope=" .. tostring(sync.gamescope),
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"gated=" .. tostring(sync.gated),
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"strategy=" .. tostring(sync.strategy),
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"needsSoftwareCap=" .. tostring(sync.needsSoftwareCap),
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"probe=" .. tostring(sync.probeCount))
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local snapped = dofile("src/core/FixedStep.lua")
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local bare = dofile("src/core/FixedStep.lua")
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local snappedSteps, bareSteps = 0, 0
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snapped:init(function() snappedSteps = snappedSteps + 1 end)
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bare:init(function() bareSteps = bareSteps + 1 end)
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local hist, worstRun, run = {}, 0, 0
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local margin, total = 1, 0
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local last = love.timer.getTime()
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for _ = 1, FRAMES do
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U.wait(1)
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local now = love.timer.getTime()
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local dt = now - last
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last = now
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total = total + dt
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RefreshRate.sample(dt)
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snapped.refreshPeriod = require("src.core.PresentSync").logicRefreshPeriod()
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local before = snappedSteps
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snapped:update(dt)
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bare:update(dt)
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local n = snappedSteps - before
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hist[n] = (hist[n] or 0) + 1
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run = (n == 0) and run + 1 or 0
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if run > worstRun then worstRun = run end
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local residual = snapped.accum % snapped.STEP
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margin = math.min(margin, residual, snapped.STEP - residual)
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end
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sync = PresentSync.status()
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U.log("PresentSync after",
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"gated=" .. tostring(sync.gated),
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"strategy=" .. tostring(sync.strategy),
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"needsSoftwareCap=" .. tostring(sync.needsSoftwareCap),
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"probe=" .. tostring(sync.probeCount))
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local hz = RefreshRate.hz()
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U.log("SDL/measured refresh", hz and string.format("%.2fHz", hz) or "unknown",
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"measured present rate",
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string.format("%.2fHz", FRAMES / math.max(total, 1e-6)))
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U.log("mismatch (not a multiple of 60Hz)",
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tostring(RefreshRate.mismatch() ~= nil))
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local counts = {}
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for n = 0, 4 do
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if hist[n] then counts[#counts + 1] = n .. "x" .. hist[n] end
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end
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U.log("steps per display frame", table.concat(counts, " "))
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U.log("longest run of duplicated frames", worstRun)
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U.log("snapped steps", snappedSteps, "unsnapped steps", bareSteps,
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"expected", math.floor(total * 60 + 0.5))
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U.log("closest the accumulator came to the step boundary",
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string.format("%.3fms", margin * 1000))
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U.log("watch the overworld scroll now; PASS is even motion, FAIL is a",
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"two-fast-one-stalled beat")
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end
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