The framebuffer is a video output device that drives a video display from a memory buffer containing a complete frame of data. The information in the buffer typically consists of color values for every pixel (point that can be displayed) on the screen. Color values are commonly stored in 1-bit monochrome, 4-bit palletized, 8-bit palletized, 16-bit highcolor and 24-bit truecolor formats. An additional alpha channel is sometimes used to retain information about pixel transparency. The total amount of the memory required to drive the framebuffer is dependent on the resolution of the output signal, as well as the color depth and palette size.

Framebuffers differ significantly from the vector graphics displays that were common prior to the advent of the framebuffer. With a vector display, only the vertices of the graphics primitives are stored. The electron beam of the output display is then commanded to move from vertex to vertex, tracing an analog line across the area between these points. With a framebuffer, the electron beam (if the display technology uses one) is commanded to trace a left-to-right, top-to-bottom path across the entire screen, much in the same way a television renders a broadcast signal. At the same time, the color information for each point on the screen is pulled from the framebuffer, creating a set of discrete picture elements (pixels).

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Does anyone know if the "shared exponent RGBE 9:9:9:5" texture/framebuffer format is accessible under DX9 on ATI or NV GPUs?
ivanassen (Ivan-Assen Ivanov) Sun, 13 Dec 2009 21:09:32 -0000
Does anyone know if the "shared exponent RGBE 9:9:9:5" texture/framebuffer format is accessible under DX9 on ATI or NV GPUs?
YATA ! J'ai trouvé ! Saloperie de CONFIG_PARTITION_ADVANCED … Ça boote. Maintenant, je m'aperçois que le framebuffer merdoie complètement
benjaminvialle (Benjamin VIALLE) Sun, 13 Dec 2009 11:00:09 -0000
YATA ! J'ai trouvé ! Saloperie de CONFIG_PARTITION_ADVANCED … Ça boote. Maintenant, je m'aperçois que le framebuffer merdoie complètement
@Foomandoonian Not a G3, but a G4 Mac, a few years ago. As long as you don't want a desktop, it's OK - getting beyond a framebuffer is hell.
irregularshed (Steve Anderson) Fri, 11 Dec 2009 14:47:27 -0000
@Foomandoonian Not a G3, but a G4 Mac, a few years ago. As long as you don't want a desktop, it's OK - getting beyond a framebuffer is hell.
說 OSD有個簡單的底了，明天來把實際的圖做上去...未來要做成server才是正途，現在先趕進度。framebuffer真是簡單明瞭的好物阿...... http://plurk.com/p/2y2c88
fillano (Hsu Ping Feng) Fri, 11 Dec 2009 12:52:48 -0000
說 OSD有個簡單的底了，明天來把實際的圖做上去...未來要做成server才是正途，現在先趕進度。framebuffer真是簡單明瞭的好物阿...... http://plurk.com/p/2y2c88
やっとのことで虫取り完了。オフスクリーンレンダリングが絡むとめどぃ。Framebuffer Object の内容可視化するツールが欲しい……
etsav (YATSUZASHI Akimi) Fri, 11 Dec 2009 09:07:56 -0000
やっとのことで虫取り完了。オフスクリーンレンダリングが絡むとめどぃ。Framebuffer Object の内容可視化するツールが欲しい……
#karmic koala flashes a framebuffer console as it shuts down, instead of the uglier VGA console...so thats an improvement! :P
mandeep_sandhu (Mandeep Sandhu) Fri, 11 Dec 2009 08:03:17 -0000
#karmic koala flashes a framebuffer console as it shuts down, instead of the uglier VGA console...so thats an improvement! :P

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