I mean get them to use love.graphcs.isSupported() then if it fails use ImageData otherwise, canvasesNixola wrote:Mickeyjm, that's exactly what I want to avoid. Canvas are fast and useful, it's not fair that some Windows users can't have them because Microsoft is dumb.
Appreciate where you're coming from.mickeyjm wrote:I mean get them to use love.graphcs.isSupported() then if it fails use ImageData otherwise, canvasesNixola wrote:Mickeyjm, that's exactly what I want to avoid. Canvas are fast and useful, it's not fair that some Windows users can't have them because Microsoft is dumb.
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gr = love.graphics
-- load a host image
host = love.image.newImageData( 'buda.png' )
-- apply an effect to host image
host:mapPixel( effect )
-- load image to be inserted into host
insert = love.image.newImageData( 'Linux.png' )
-- insert imagedata into host
host:paste(insert,10,10,0,0,40,40)
-- create a drawing surface (canvas)
canvas = love.graphics.newCanvas( 20,20)
-- direct drawing to canvas
gr.setCanvas( canvas )
gr.setColor(255,55,255,255)
gr.circle('fill',10,10,8)
gr.setCanvas()
-- convert userdata (canvas) to imagedata
data = canvas:getImageData( )
-- add converted canvas to host imagedata
host:paste(data,30,30,0,0,20,20)
-- convert imagedata into an image
composite = gr.newImage(host)
-- now ready to draw composite
gr.setColorMode('replace')
gr.draw(composite,100,100)
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canvas:renderTo( function() gr.draw( image ) end )
that's the thing... you can't. not unless you actually find/implement a software implementation of opengl. doing this with on a pixel-by-pixel basis through lua (if mapPixel and setPixel are involved) is going to be obscenely slow for just about any task you'd actually want to use canvases for anyway.Ref wrote:Can't figure out how to direct drawing primitives to an image without using canvases.
