nanogui: New Nano-X Architecture Preview available
Subject:
Re: [nanogui] New Nano-X Architecture Preview available
From:
####@####.####
Date:
16 Dec 2010 07:57:51 -0000
Message-Id: <AANLkTimPNqLs_262kG3HE0Knde=ocy60AsJQMqtkqL9b@mail.gmail.com>
This is a very happy news ,thank you Greg Haerr
2010/12/16 Greg Haerr ####@####.####
> Hi,
>
> There's been quite a bit of new work recently on the internals of
> Nano-X, which are now running well enough to announce a preview
> of this upcoming release, which is currently v0.93 in the git repository.
>
> I have updated the website and there is also a snapshot tarball available:
> ftp://microwindows.org/pub/microwindows/microwindows-src-snapshot.tar.gz
>
> Here's a summary of the new enhancements. Please feel free to
> try it out, there are huge speed increases for font and image display,
> and also a demo of 32bpp compositing, which runs on any
> truecolor display (compositedemo.sh, blitdemo.sh). I will be
> writing up more details on the internal driver architecture and
> providing screen shots on the website soon.
>
> New Nano-X Engine Architecture Preview - Dec 15, 2010
>
> New Ports
> MAC OSX 64-bit X11 port
> MoSync port
>
> New Features
> o Processor and framebuffer independent compositing with internal RGBA
> 32bpp pixmaps
> with display on 8/15/16/24/32bpp truecolor displays.
> o Hugely faster display of font and image data using blit rather than
> per-pixel drawing.
> o Entirely new driver architecture uses fast conversion blits for all
> display
> of font and image data. Subdrivers for 1/2/4/8/15/16/24/32bpp have no
> control
> branches in inner loops for highest speed. For systems without
> framebuffers, like desktop X11 for testing, all image data is computed
> using framebuffer subdrivers, and then blitted once to final display
> using an automatic graphics Update() operation. For systems with
> framebuffers, drawing is done directly to screen for speed, with support
> for
> future "buffered" windows for late-stage final compositing.
> o All conversion blits support all portrait modes, stretching, raster ops,
> and srcover alpha blending.
> o GdArea, GdReadArea, GdBitmap and all fonts use fast conversion blits.
> o New conversion blits can be added for speed for specific systems, and
> slower draw code is still available for 1/2/4/8bpp palette systems.
> o Most image loaders (png, jpg, etc) read into internal RGBA format for
> easy use in compositing and alpha blending.
> o Runtime auto-portrait mode switching now possible without application
> image recomputation requirements. (bin/nano-X -A)
>
> New Driver Architecture
> o All drivers are endian-neutral with only Read/DrawPixel, DrawV/Hline and
> Blit
> entry points.
> o New conversion blit implementation uses static inline functions for
> high speed, and ease of adding new framebuffer or image data formats.
> o RGBA image data format available regardless of framebuffer.
> o X11 driver can emulate 8/15/16/24/32bpp displays using same codepath as
> target.
>
> Nano-X API Changes
> GrNewPixmapEx takes MWIF_RGBA8888, 32 and hardware framebuffer parameter.
>
> Win32 API Changes
> Added CreateDibSection, GetLastError, SetLastError, RegisterHotKey,
> UnRegisterHotkey
>
> As usual, have fun with it!
>
> Regards,
>
> Greg
>
>
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