Xgl steps in to handle much of the X server's work--to draw a line or fill a rectangle with white, for instance. The use of OpenGL commands lets the graphics hardware manage many operations that otherwise would require constant coordination between the X server and its applications, Friedman said.
"We're offloading a lot of the work to the hardware," Friedman said. "The result is things look and feel a lot smoother."
For example, the video hardware can store whatever information is contained in windows that have been hidden by other windows. That means the contents of the hidden panes can be redrawn quickly when an upper window is moved and the window underneath is revealed. In contrast, with regular X servers, the text underneath must be retrieved by numerous requests by the X server.
Xgl accelerates Cairo, so its future use will benefit from hardware acceleration, Friedman said.
"If you're using Cairo, all your Cairo operations are accelerated--fonts, windows, special effects," Friedman said. "In terms of vectorizing the desktop, this moves us way ahead."
[^] # Re: Joli mais dangereux...
Posté par gnumdk (site web personnel) . En réponse au journal Xgl, la suite. Évalué à 2.
Xgl steps in to handle much of the X server's work--to draw a line or fill a rectangle with white, for instance. The use of OpenGL commands lets the graphics hardware manage many operations that otherwise would require constant coordination between the X server and its applications, Friedman said.
"We're offloading a lot of the work to the hardware," Friedman said. "The result is things look and feel a lot smoother."
For example, the video hardware can store whatever information is contained in windows that have been hidden by other windows. That means the contents of the hidden panes can be redrawn quickly when an upper window is moved and the window underneath is revealed. In contrast, with regular X servers, the text underneath must be retrieved by numerous requests by the X server.
Xgl accelerates Cairo, so its future use will benefit from hardware acceleration, Friedman said.
"If you're using Cairo, all your Cairo operations are accelerated--fonts, windows, special effects," Friedman said. "In terms of vectorizing the desktop, this moves us way ahead."