local util = {} --TODO: the whole stencil/canvas system should be reviewed since it has been changed in a naive way function util.process(canvas, options) --TODO: now you cannot draw a canvas to itself util.drawCanvasToCanvas(canvas, canvas, options) end function util.drawCanvasToCanvas(canvas, other_canvas, options) options = options or {} util.drawto(other_canvas, 0, 0, 1, function() if options["blendmode"] then love.graphics.setBlendMode(options["blendmode"]) end if options["shader"] then love.graphics.setShader(options["shader"]) end if options["stencil"] then love.graphics.stencil(options["stencil"]) love.graphics.setStencilTest("greater",0) end if options["istencil"] then love.graphics.stencil(options["istencil"]) love.graphics.setStencilTest("equal", 0) end if options["color"] then love.graphics.setColor(unpack(options["color"])) else love.graphics.setColor(255,255,255) end if love.graphics.getCanvas() ~= canvas then love.graphics.draw(canvas,0,0) end if options["blendmode"] then love.graphics.setBlendMode("alpha") end if options["shader"] then love.graphics.setShader() end if options["stencil"] or options["istencil"] then --love.graphics.setInvertedStencil() love.graphics.setStencilTest() end end) end function util.drawto(canvas, x, y, scale, cb) local last_buffer = love.graphics.getCanvas() love.graphics.push() love.graphics.origin() love.graphics.setCanvas(canvas) love.graphics.translate(x, y) love.graphics.scale(scale) cb() love.graphics.setCanvas(last_buffer) love.graphics.pop() end return util