[Mesa-dev] Mesa (master): util: Add small caps checker helper

[Jakob Bornecrantz]

On 2010-04-29 18.23, Jakob Bornecrantz wrote:
> On 2010-04-29 17.11, Keith Whitwell wrote:
>> Jakob,
>>
>> A couple of these are a bit misleading - DX10&   DX11 aren't fully
>> supportable without further changes&   extensions to gallium, so it seems
>> misleading to have these ever return true - at least until those changes
>> are done.
>>
>> Would it make sense to have a UTIL_CHECK_NONIMPLEMENTED or similar that
>> always fails, which we can remove once proper support is in gallium?
>>
>
> Right added a unimplemented check and comments to clarify.
>
> Even tho those list are just demos it would be nice if anybody who has
> more time then me would update them to be more extensive of the required
> caps for different APIs and extensions.

So the plan was to commit these changes and write a small email follow 
up, but it took a bit longer then planned to write the code and apply 
input from people and suddenly it was beer o clock, so anyways here it is:

The goal of the code was to provide a way to express a set of 
requirments for a given feature/extension or version of API. But just as 
important was the readability of this list for driver developers trying 
to get a good overview of which features to implement for a given 
extension or API.

So regarding the demo tables, I tried to express a feature level table 
from the DX11 documentation[1]. But I didn't finish it. I had a bit to 
match up all the features against Gallium features. If somebody has a 
itch to finish this please go ahead, this is pretty much a janitorial task.

The OpenGL case is a bit more difficult to figure out since the code 
that determines which OpenGL version to expose is spread across 
st_extensions.c and main/extensions.c, again another janitorial task.

On a unrelated note Marek, if you follow the link you will see that 
Microsoft divided DX9 into 3 levels.

Cheers Jakob.

[1] http://msdn.microsoft.com/en-us/library/ff476876(v=VS.85).aspx