Felix Kühling wrote:
I'm looking into porting the savage driver to the new interface so it can be built in the Mesa tree. I took a look at the r128 and mga drivers for reference. I noticed that the old drivers (I still have a savage-2-0-0-branch lying around) used to check the DRI/DDX/DRM versions (using driCheckDriDdxDrmVersions) in the CreateScreen or InitDriver function. This check is gone in the current drivers and replaced by a version check in the CreateNewScreen function (using driCheckDriDdxDrmVersions2). However, as far as I understand this function is only called if the driver is loaded by a new libGL. When the driver is built without NEW_INTERFACE_ONLY and loaded by an old libGL then there are no version checks any more. Am I missing something?
An old libGL will call the driver's CreateScreen function. This function calls __driUtilCreateScreen, which does the extra work that is now done in a new libGL, then calls the driver's CreateNewScreen. Whether you're using an old libGL or a new one, you eventually get to CreateNewScreen.
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