mirror of
https://github.com/NixOS/mobile-nixos.git
synced 2024-12-18 21:41:53 +03:00
107 lines
2.7 KiB
Ruby
107 lines
2.7 KiB
Ruby
# FFI bindings for a couple of our hacks.
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module LVGL::FFI
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# TODO: Figure out when the following struct (and this typedef) are at the
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# end, this segfaults...
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typedef "lv_task_cb_t", "void (*lv_task_cb_t)(struct _lv_task_t *)"
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LvTask = struct! [ # {{{
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[:uint32_t, :period],
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[:uint32_t, :last_run],
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[:lv_task_cb_t, :task_cb],
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["void *", :user_data],
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[:uint8_t, :prio],
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[:uint8_t, :once],
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] # }}}
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extern "void hal_init()"
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# TODO: begin/rescue DLError and assume failing is we're not in simulator.
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if lv_introspection_is_simulator
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global!("int", "monitor_width")
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global!("int", "monitor_height")
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end
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extern "void lv_task_handler()"
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def handle_lv_task(lv_task_p)
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# Unwrap the lv_task struct we received
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lv_task = LvTask.new(lv_task_p.to_i)
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# This is the userdata that has been given
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userdata = lv_task.user_data
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# Side-step our inability to rehydrate an mruby Object properly
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task = LVGL::Hacks::LVTask::REGISTRY[userdata.to_i]
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# Call the task
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task.call()
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end
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bound_method! :handle_lv_task, "void handle_lv_task_(lv_task_t * task)"
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extern "lv_task_t * lv_task_create(lv_task_cb_t, uint32_t, lv_task_prio_t, void *)"
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end
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# FFI bindings for "hacks" for lv_lib_nanosvg
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module LVGL::FFI
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# lv_lib_nanosvg/lv_nanosvg.h
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extern "void lv_nanosvg_init()"
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extern "void lv_nanosvg_resize_next_width(int)"
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extern "void lv_nanosvg_resize_next_height(int)"
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end
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module LVGL::Hacks
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def self.init()
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LVGL::FFI.hal_init()
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LVGL::FFI.lv_nanosvg_init()
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end
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def self.monitor_height=(v)
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if LVGL::Introspection.simulator?
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LVGL::FFI.monitor_height = v
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end
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end
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def self.monitor_width=(v)
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if LVGL::Introspection.simulator?
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LVGL::FFI.monitor_width = v
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end
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end
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def self.theme_night(hue)
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LVGL::FFI.lv_theme_set_current(
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LVGL::FFI.lv_theme_night_init(hue, 0)
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)
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end
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module LVTask
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# Temp hack...
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# I need to figure out how to use Fiddle's #to_value to rehydrate an mruby
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# Object into its proper form.
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REGISTRY = {
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# userdata pointer int value => instance
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}
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def self.create_task(period, prio, task)
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userdata = Fiddle::Pointer[task]
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REGISTRY[userdata.to_i] = task
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LVGL::FFI.lv_task_create(
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LVGL::FFI["handle_lv_task"],
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period,
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prio,
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userdata
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)
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end
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def self.handle_tasks()
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#$stderr.puts "-> handle_tasks"
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LVGL::FFI.lv_task_handler()
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#$stderr.puts "<- handle_tasks"
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end
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end
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end
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module LVGL::Hacks
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module LVNanoSVG
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def self.resize_next_width(width)
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LVGL::FFI.lv_nanosvg_resize_next_width(width)
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end
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def self.resize_next_height(height)
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LVGL::FFI.lv_nanosvg_resize_next_height(height)
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end
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end
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end
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