mirror of
https://github.com/airstruck/luigi.git
synced 2025-11-18 12:25:06 +00:00
c9a5811adc
Looks for main.lua. Launch it like this:
luajit myapp/lib/luigi/launch.lua
If luigi isn't inside the project directory, pass
the path containing main.lua as the second argument.
The path must end with a directory separator.
luajit /opt/luigi/launch.lua ./myapp/
If the app prefixes luigi modules with something
other then 'luigi', pass that prefix as the third
argument.
luajit /opt/luigi/launch.lua ./myapp/ lib.luigi
47 lines
1.1 KiB
Lua
47 lines
1.1 KiB
Lua
local REL = (...):gsub('[^.]*$', '')
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local APP_ROOT = rawget(_G, 'LUIGI_APP_ROOT') or ''
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local ffi = require 'ffi'
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local sdl = require(REL .. 'sdl')
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local SDL2_image = ffi.load 'SDL2_image'
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ffi.cdef [[ SDL_Surface *IMG_Load(const char *file); ]]
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local Image = setmetatable({}, { __call = function (self, ...)
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local object = setmetatable({}, { __index = self })
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return object, self.constructor(object, ...)
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end })
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function Image:constructor (renderer, path)
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self.sdlRenderer = renderer
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self.sdlSurface = ffi.gc(
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SDL2_image.IMG_Load(APP_ROOT .. path),
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sdl.freeSurface)
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if self.sdlSurface == nil then
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error(ffi.string(sdl.getError()))
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end
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self.sdlTexture = ffi.gc(
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sdl.createTextureFromSurface(renderer, self.sdlSurface),
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sdl.destroyTexture)
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if self.sdlTexture == nil then
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error(ffi.string(sdl.getError()))
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end
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self.width = self.sdlSurface.w
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self.height = self.sdlSurface.h
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end
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function Image:getWidth ()
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return self.width
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end
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function Image:getHeight ()
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return self.height
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end
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return Image
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