Re: [PATCH 01/02] dri2proto: Add DRI2GetParam request

[Eric Anholt]

On Thu, 10 May 2012 00:04:36 -0700, Chad Versace <chad.vers...@linux.intel.com> 
wrote:
>  /*
>   * Events
> @@ -330,4 +331,32 @@ typedef struct {
>  } xDRI2InvalidateBuffers;
>  #define sz_xDRI2InvalidateBuffers 32
>  
> +typedef struct {
> +    CARD8   reqType;
> +    CARD8   dri2ReqType;
> +    CARD16  length B16;
> +    CARD32  drawable B32;
> +    CARD32  namespace_ B32;
> +    CARD32  param_hi B32;
> +    CARD32  param_lo B32;
> +} xDRI2GetParamReq;
> +#define sz_xDRI2GetParamReq 20

64 bits of param enums?  I'm going to go ahead and guess that we've
moved to a new protocol or driver implementation before we run out of 32 bits.

> +┌───
> +    DRI2GetParam
> +     drawable: DRAWABLE
> +     namespace: DRI2PARAM_NAMESPACE
> +     param: CARD64
> +      ▶
> +     is_param_recognized: BOOL
> +     unused: 3 bytes
> +     value: CARD64
> +└───
> +     Errors: Drawable, Value
> +
> +        Get the value of a parameter. The parameter's value is looked up in
> +     the 'namespace' on the screen associated with the 'drawable'.
> +
> +        Possible values of 'param_is_recognized' are true (1) and
> +     false(0).  If false, then 'value' is undefined.

s/param_is_recognized/is_param_recognized/

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