evan
ad396d3f01
Boots to a launcher that lists /apps/<name>/main.lua on the SD card and runs the selected app in a vendored Lua 5.4 with gui, input, fs, sys and log bindings. Settings persist as a Lua table in /settings.lua, covering touch calibration and screen rotation, with a settings app to edit both. Rotation is applied after mapping raw touch into the panel's rotation-0 frame, so turning the UI never invalidates a calibration.
67 lines
2.3 KiB
Lua
67 lines
2.3 KiB
Lua
-- Run: lua test/settings_calibration.lua
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-- Stubs the firmware bindings so the settings app loads on a desktop Lua.
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local saved
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local rotation = 0
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gui = {
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color = function() return 0 end,
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setRotation = function() end,
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width = function() return 320 end,
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height = function() return 480 end,
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clear = function() end,
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drawText = function() end,
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drawRect = function() end,
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drawLine = function() end,
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}
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sys = {
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exit = function() end,
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setCalibration = function(...) saved = {...} return true end,
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getRotation = function() return rotation end,
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setRotation = function(degrees) rotation = degrees return true end,
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}
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input = {getRawTouch = function() return nil end}
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log = {info = function() end}
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dofile("sdcard/apps/settings/main.lua")
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-- A perfectly linear panel spanning raw 200..3800 over 320x480 must round-trip
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-- to those same extremes from the two inset samples.
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local inset, w, h = 30, 320, 480
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local function raw(pixel, size) return 200 + (3800 - 200) * pixel / size end
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local s1 = {x = raw(inset, w), y = raw(inset, h)}
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local s2 = {x = raw(w - inset, w), y = raw(h - inset, h)}
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local x0, y0, x1, y1 = computeCalibration(s1, s2, w, h, inset)
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assert(math.abs(x0 - 200) <= 1, "x0 " .. x0)
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assert(math.abs(y0 - 200) <= 1, "y0 " .. y0)
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assert(math.abs(x1 - 3800) <= 1, "x1 " .. x1)
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assert(math.abs(y1 - 3800) <= 1, "y1 " .. y1)
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-- A flipped panel (raw decreasing with pixel) must yield a descending range.
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local s3 = {x = 3800 - raw(inset, w) + 200, y = s1.y}
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local s4 = {x = 3800 - raw(w - inset, w) + 200, y = s2.y}
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local fx0, _, fx1 = computeCalibration(s3, s4, w, h, inset)
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assert(fx0 > fx1, "flipped axis should descend")
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-- Rotation cycles through the four quarter turns and wraps back to 0.
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setup()
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for _, expected in ipairs({90, 180, 270, 0}) do
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on_touch(20, 85)
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assert(sys.getRotation() == expected, "rotation " .. sys.getRotation())
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end
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setup()
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on_touch(20, 45)
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on_tick() -- release after the menu tap arms sampling
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input.getRawTouch = function() return s1.x, s1.y end
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on_tick()
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input.getRawTouch = function() return nil end
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on_tick()
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input.getRawTouch = function() return s2.x, s2.y end
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on_tick()
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input.getRawTouch = function() return nil end
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on_tick()
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assert(saved, "calibration was not saved")
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assert(math.abs(saved[1] - 200) <= 1, "saved x0 " .. saved[1])
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print("ok")
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