[Mesa-dev] [PATCH 6/6] swrast: Use BITFIELD64_BIT for arrayAttribs.

Brian Paul brianp at vmware.com
Wed Mar 18 09:50:17 PDT 2015


On 03/18/2015 10:34 AM, Jose Fonseca wrote:
> As VARYING_SLOT_MAX can be bigger than 32.
>
> I'll probably stop building swrast with MSVC in the near future, but this
> seems a real bug regardless.
> ---
>   src/mesa/swrast/s_span.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
> index 5d618f0..e304b6b 100644
> --- a/src/mesa/swrast/s_span.c
> +++ b/src/mesa/swrast/s_span.c
> @@ -788,7 +788,7 @@ clip_span( struct gl_context *ctx, SWspan *span )
>            memmove(ARRAY, ARRAY + (SHIFT), (LEN) * sizeof(ARRAY[0]))
>
>            for (i = 0; i < VARYING_SLOT_MAX; i++) {
> -            if (span->arrayAttribs & (1 << i)) {
> +            if (span->arrayAttribs & BITFIELD64_BIT(i)) {
>                  /* shift array elements left by 'leftClip' */
>                  SHIFT_ARRAY(span->array->attribs[i], leftClip, n - leftClip);
>               }
>

All six look good to me.

Reviewed-by: Brian Paul <brianp at vmware.com>

This patch (6/6) is a subset of one I still have sitting around related 
to http://bugs.freedesktop.org/show_bug.cgi?id=87136



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