Re: [Gambas-devel] gb3: Image.Draw method is missing when using gb.sdl
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From: Laurent C. <lor...@gm...> - 2011-01-07 22:16:44
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Le mercredi 5 janvier 2011 15:34:53, Kevin Fishburne a écrit : > I'm in the process of converting my app from gb.image only to gb.image + > gb.sdl to improve rendering performance. To my horror I noticed that the > Draw method is no longer available. I'm using the following components: > Draw.Image is no more available in gambas3, instead you must use Draw.Begin() / Draw.End() on Image objects. > gb > gb.image > gb.image.effect > gb.image.io > gb.net > gb.sdl > gb.sdl.sound > > There is a Copy method, though it doesn't have parameters to specify the > destination coordinates or width/height for scaling. It's like the Draw > method with only the first four parameters. Interestingly good old > DrawAlpha seems to still be there (yay!). Draw.Copy() method is only to copy the image or only a part of it, no some sort of Image.Draw() replacement/workaround, see http://gambasdoc.org/help/comp/gb.image/image/copy?v3 > > Should there be a Draw method, or is there a different way to achieve > the same functionality? It looks like using "Draw.Image(...)" will work, > so I may have to integrate my rendering directly into the SDL backbuffer > (Screen_Draw[]), though that would require a rewrite of the rendering > pipeline. Final question, if there was an Image.Draw method, would that > bypass SDL and use software rendering? If so it may be best for me to > rewrite the rendering pipeline so it's pure SDL. In a normal world, Draw.Begin() with an Image object, should work, but in a world with myself as the maintainer/developper of the sdl component, it's not! Why ? Because i'm really a lazy guy. It should be done from a long time, but as everybody, i'm a bit busy, with projects/familly/job/... Drawing on Images is planned to be implemented through openGL, so (i hope!) it should be possible to use the power of the graphic card to to some rotation/stretching/zoom dynamicly, and perhaps some other things. Sorry for the lack of features of the sdl component, sincerely. ++ |