From 704ddbcdf693079d417d831abe073caad008ab01 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Nicolai=20H=C3=A4hnle?= Date: Sun, 17 Sep 2017 18:03:04 +0200 Subject: [PATCH] radeonsi: set MIP_POINT_PRECLAMP to 0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit This fixes a bug with nearest ("point") mip selection when the fractional part of max_lod is in (0.5,1). In this case, the spec mandates that we still select the mip level ceil(max_lod) in the clamping case. However, MIP_POINT_PRECLAMP will clamp before the mip selection, which is wrong. Supposedly this setting was originally copied from the closed Vulkan driver, but as far as I can tell, closed Vulkan was actually changed back recently :) Fixes dEQP-GLES3.functional.texture.mipmap.2d.max_lod.{nearest,linear}_nearest Fixes: f7420ef5b464 ("radeonsi: enable some sampler fields to match the closed driver") Reviewed-by: Marek Olšák Reviewed-by: Dave Airlie --- src/gallium/drivers/radeonsi/si_state.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c index 96f9e44..3135566 100644 --- a/src/gallium/drivers/radeonsi/si_state.c +++ b/src/gallium/drivers/radeonsi/si_state.c @@ -3991,7 +3991,7 @@ static void *si_create_sampler_state(struct pipe_context *ctx, S_008F38_XY_MAG_FILTER(eg_tex_filter(state->mag_img_filter, max_aniso)) | S_008F38_XY_MIN_FILTER(eg_tex_filter(state->min_img_filter, max_aniso)) | S_008F38_MIP_FILTER(si_tex_mipfilter(state->min_mip_filter)) | - S_008F38_MIP_POINT_PRECLAMP(1) | + S_008F38_MIP_POINT_PRECLAMP(0) | S_008F38_DISABLE_LSB_CEIL(sctx->b.chip_class <= VI) | S_008F38_FILTER_PREC_FIX(1) | S_008F38_ANISO_OVERRIDE(sctx->b.chip_class >= VI)); -- 2.7.4