Howzit?
I would like to confirm my understanding of the various data paths between
applications (both direct and indirect rendering) and the graphics hardware.
First I have the path of 3D data between the 3D direct rendering program and the
graphics hardware which is pretty simple.
Direct rendering program (3D stuff)
|
Direct rendering (3D data)
|
3D data
|
Graphics hardware
Second I have the path of 2D data between the 3D direct rendering program and the
graphics hardware. Here I would like some clarification where I have question marks.
Direct rendering program (2D stuff)
|
X protocol encode (2D data)
|
2D data
|
? X-server ?
? Decode and dispatch ?
? DDX Driver ?
|
2D data
|
Graphics hardware
Third I have the path of 2D data between the 3D indirect rendering program and the
graphics hardware. Again I would like some clarification where I have put question
marks.
Indirect rendering program (2D stuff)
|
X protocol encode (2D data)
|
2D data
|
? X-server ?
? Decode and dispatch ?
? DDX Driver ?
|
2D data
|
Graphics hardware
Lastly I have the path of 3D data between the 3D indirect rendering program and the
graphics hardware. Again more clarification where there are question marks.
Indirect rendering program (3D stuff)
|
OpenGL encode (3D data)
|
3D data
|
? X-server ?
? Decode and dispatch ?
? DDX Driver ?
|
2D data
|
Graphics hardware
Are the, ????? encode , lines "processes" ie they create / produce the 2D (X Protocol
encoding) or 3D (OpenGl encoding) data?
The main thing I want to know is what happens between the Encoding and the Graphics
hardware.
Please point out any errors.
This information will be used as part of the documentation for DRI in the form of a
flow chart.
cheers
Liam
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