Am 03.03.2013 21:27, schrieb Dave Airlie:
> From: Dave Airlie <airl...@redhat.com>
>
> This is to be used to implement glGet GL_SAMPLE_POSITION.
>
> Signed-off-by: Dave Airlie <airl...@redhat.com>
> ---
> src/gallium/include/pipe/p_context.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/src/gallium/include/pipe/p_context.h
> b/src/gallium/include/pipe/p_context.h
> index 7ed946e..4ffee20 100644
> --- a/src/gallium/include/pipe/p_context.h
> +++ b/src/gallium/include/pipe/p_context.h
> @@ -520,6 +520,10 @@ struct pipe_context {
> const uint *block_layout, const uint *grid_layout,
> uint32_t pc, const void *input);
> /*@}*/
> + void (*get_sample_position)(struct pipe_context *context,
> + int max_samples,
> + unsigned sample_index,
> + float *out_value);
> };
>
It looks like GL wants that function to depend on the currently bound
visual, and this is format-indepedent (which seems to be more sane
indeed). I think though "max_samples" should be "num_samples" or
something similar. Also some doc would be nice.
Otherwise LGTM.
Roland
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