[xserver patch v4 3/5] glx: Enforce a 1:1 correspondence between GLX and X11 windows.

[Francisco Jerez]

Kristian Høgsberg <krh at bitplanet.net> writes:

> On Mon, Feb 8, 2010 at 1:25 PM, Francisco Jerez <currojerez at riseup.net> wrote:
>> The spec says (regarding glXCreateWindow): "If there is already a
>> GLXFBConfig associated with win (as a result of a previous
>> glXCreateWindow call), then a BadAlloc error is generated.". It will
>> also come useful to implement DRI2InvalidateBuffers for the indirect
>> case.
>
> Can you just use the existing __glXDrawableRes for tracking this?
>
I don't think so. To implement DRI2InvalidateBuffers we need a way to
map an X11 window to its GLX window: In the GLX1.3 world the client
decides the IDs of its GLX drawables so in general GLX and X11 drawable
IDs aren't going to be the same.

> cheers,
> Kristian
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