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panfrost: Add panfrost_streamout_offset helper

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Calculates the bias required for an xfb record in the src_offset field
to account for truncating the address to force alignment.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5423>
This commit is contained in:
Alyssa Rosenzweig 2020-06-10 19:28:28 -04:00 • committed by Marge Bot
parent 24c3b95925
commit e26ac2e165
1 changed files with 7 additions and 0 deletions
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7
src/gallium/drivers/panfrost/pan_cmdstream.c
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@ -1615,6 +1615,13 @@ panfrost_emit_varyings(struct panfrost_batch *batch, union mali_attr *slot,
return transfer.gpu;
}
static unsigned
panfrost_streamout_offset(unsigned stride, unsigned offset,
struct pipe_stream_output_target *target)
{
return (target->buffer_offset + (offset * stride * 4)) & 63;
}
static void
panfrost_emit_streamout(struct panfrost_batch *batch, union mali_attr *slot,
unsigned stride, unsigned offset, unsigned count,