mirror of
https://github.com/bryanthaboi/gen1recomp
synced 2026-10-09 18:07:27 -04:00
Bart in 't Veld
218b9249a2
Expose a generic seam so a mod can drive a second screen without the engine owning any dual-screen layout policy: - render.compose hook in Renderer:endFrame hands a mod the finished world + UI canvases, their SGB zones, the frame metrics, Renderer:blitCanvas (lifted from the internal blit closure) and the SecondScreen bridge. Return true to take over the window; no wrap (or calling next) runs the normal single-window composite byte-for-byte. - SecondScreen.lua + the Android Presentation bridge (love_android_ secondary_* in common/android.cpp, GameActivity secondary display) as the optional physical-second-display transport. No battle-render changes: a mod lays out the two screens (including any battle split) itself. Ships with a unit test, no-mod parity via gate_hooks, and docs/modding.md (D14).
60 lines
1.8 KiB
Lua
60 lines
1.8 KiB
Lua
-- Bridge to native secondary-display output (Android Presentation). The C
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-- functions live in mobile/android/love/src/jni/love/src/common/android.cpp.
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-- Everything is guarded: off Android, or if the symbols cannot be resolved,
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-- this stays inert and the renderer keeps the in-window stacked layout.
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local SecondScreen = {}
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local C = nil
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local function log(msg)
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pcall(function() require("src.core.Logger").info("SecondScreen: %s", msg) end)
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end
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do
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local ok, ffi = pcall(require, "ffi")
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if not (ok and ffi) then
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log("ffi unavailable (not LuaJIT); second display disabled")
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else
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pcall(ffi.cdef, [[
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int love_android_secondary_ready();
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void love_android_push_secondary(const void *rgba, int w, int h);
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void love_android_secondary_enable(int on);
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]])
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local okLib, lib = pcall(ffi.load, "love")
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if okLib and lib and pcall(function() return lib.love_android_secondary_ready end) then
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C = lib
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log("bridge linked via ffi.load('love')")
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elseif pcall(function() return ffi.C.love_android_secondary_ready end) then
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C = ffi.C
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log("bridge linked via default namespace")
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else
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log(("bridge symbols not found (ffi.load ok=%s); second display disabled")
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:format(tostring(okLib)))
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end
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end
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end
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function SecondScreen.usable()
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return C ~= nil
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end
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function SecondScreen.available()
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if not C then return false end
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local ok, r = pcall(C.love_android_secondary_ready)
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return ok and r ~= 0
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end
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function SecondScreen.push(imageData, w, h)
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if not C or not imageData then return false end
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return pcall(function()
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C.love_android_push_secondary(imageData:getFFIPointer(), w, h)
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end)
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end
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function SecondScreen.setEnabled(on)
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if not C then return end
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pcall(function() C.love_android_secondary_enable(on and 1 or 0) end)
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end
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return SecondScreen
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