-- MSAA enable scroll test on love2d

function love.load()
  limits = love.graphics.getSystemLimits()

  love.graphics.setDefaultFilter("nearest", "nearest")
  img0 = love.graphics.newImage("bgtile.png")

  love.graphics.setDefaultFilter("linear", "linear")
  img1 = love.graphics.newImage("bgtile.png")

  local w, h
  w, h = love.graphics.getDimensions()

  settings = {}
  settings.msaa = 0
  canvas0 = love.graphics.newCanvas(w, h, settings)

  settings.msaa = 16
  canvas1 = love.graphics.newCanvas(w, h, settings)

  y = 32
end

function love.update(dt)
  y = y + 2.0 * dt
end

function love.draw()
  love.graphics.clear(0.25, 0.41, 0.88, 1.0)

  h = img0:getHeight()

  love.graphics.setCanvas(canvas0)
  love.graphics.clear()
  love.graphics.setColor(1.0, 1.0, 1.0, 1.0)
  love.graphics.draw(img0, 0, y)

  love.graphics.setCanvas(canvas1)
  love.graphics.clear()
  love.graphics.setColor(1.0, 1.0, 1.0, 1.0)
  love.graphics.draw(img1, 322, y)

  love.graphics.setCanvas()
  love.graphics.draw(canvas0, 0, 0)
  love.graphics.draw(canvas1, 0, 0)

  love.graphics.print("FPS: " .. tostring(love.timer.getFPS()), 2, 2)
  love.graphics.print("MSAA limit : " .. limits["canvasmsaa"], 2, 20)

  local tx = 320 - 8 * 7
  love.graphics.print("nearest", tx, 40)
  love.graphics.print("MSAA: " .. tostring(canvas0:getMSAA()), tx, 60)

  tx = 328
  love.graphics.print("linear", tx, 40)
  love.graphics.print("MSAA: " .. tostring(canvas1:getMSAA()), tx, 60)
end

function love.keypressed(key, isrepeat)
  if key == "escape" then
    -- ESC key to exit
    love.event.quit()
  end
end