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require("iuplua")
require("iupluagl")
require("luagl")
require("imlua")
iup.key_open()
texture = 0
cnv = iup.glcanvas{buffer="DOUBLE", rastersize = "640x480"}
function cnv:resize_cb(width, height)
iup.GLMakeCurrent(self)
gl.Viewport(0, 0, width, height)
end
function cnv:action(x, y)
iup.GLMakeCurrent(self)
gl.PixelStore(gl.UNPACK_ALIGNMENT, 1)
gl.Clear('COLOR_BUFFER_BIT,DEPTH_BUFFER_BIT') -- Clear Screen And Depth Buffer
gl.DrawPixelsRaw (image:Width(), image:Height(), glformat, gl.UNSIGNED_BYTE, gldata)
iup.GLSwapBuffers(self)
end
function cnv:k_any(c)
if c == iup.K_q or c == iup.K_ESC then
return iup.CLOSE
end
if c == iup.K_F1 then
if fullscreen then
fullscreen = false
dlg.fullscreen = "No"
else
fullscreen = true
dlg.fullscreen = "Yes"
end
end
if c == iup.K_F2 then
fileName = iup.GetFile("*.*")
new_image = im.FileImageLoadBitmap(fileName)
if (not new_image) then
iup.Message("Error", "LoadBitmap failed.")
else
gldata, glformat = new_image:GetOpenGLData()
if (image) then image:Destroy() end
image = new_image
iup.Update(cnv)
end
end
end
if arg and arg[1] ~= nil then
fileName = arg[1]
else
fileName = iup.GetFile("*.*")
end
image = im.FileImageLoadBitmap(fileName)
if (not image) then
error("LoadBitmap failed.")
end
gldata, glformat = image:GetOpenGLData()
dlg = iup.dialog{cnv; title="LuaGL/IUP/IM Loader"}
dlg:show()
cnv.rastersize = nil -- reset minimum limitation
if (iup.MainLoopLevel()==0) then
iup.MainLoop()
end
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