On 22 August 2012 18:54, Marek Olšák <mar...@gmail.com> wrote:
> The original samples positions took samples outside of the pixel boundary,
> leading to dark pixels on the edge of the colorbuffer, among other things.
>
Does this address the issues you were having with the error thresholds in
the EXT_framebuffer_multisample piglit tests (Re: your Aug 13 email
"[Piglit] [PATCH] ext_framebuffer_multisample: relax MSAA precision")?
> ---
> src/gallium/drivers/r600/evergreen_state.c | 32
> ++++++++++++++--------------
> 1 file changed, 16 insertions(+), 16 deletions(-)
>
> diff --git a/src/gallium/drivers/r600/evergreen_state.c
> b/src/gallium/drivers/r600/evergreen_state.c
> index 4e86693..e12706e 100644
> --- a/src/gallium/drivers/r600/evergreen_state.c
> +++ b/src/gallium/drivers/r600/evergreen_state.c
> @@ -1516,24 +1516,24 @@ static uint32_t evergreen_set_ms_pos(struct
> pipe_context *ctx, struct r600_pipe_
> static unsigned max_dist_4x = 6;
> /* 8xMSAA */
> static uint32_t eg_sample_locs_8x[] = {
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> };
> static uint32_t cm_sample_locs_8x[] = {
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG(-2, -5, 4, -4, 1, 6, -6, -2),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> - FILL_SREG( 6, 1, 0, 0, -5, 4, 7, -8),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG(-2, -5, 3, -4, -1, 5, -6, -2),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> + FILL_SREG( 6, 0, 0, 0, -5, 3, 4, 4),
> };
> static unsigned max_dist_8x = 8;
> /* 16xMSAA */
> --
> 1.7.9.5
>
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