From: Marek Olšák <marek.olsak@amd.com>
Date: Tue, 26 May 2020 09:39:08 +0000 (-0400)
Subject: radeonsi: add a hack to disable TRUNC_COORD for shadow samplers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fe3947632ce9946562a39ef95a6796b8604f1f42;p=mesa.git

radeonsi: add a hack to disable TRUNC_COORD for shadow samplers

This fixes dEQP-GLES3.functional.shaders.texture_functions.textureprojlodoffset.sampler2dshadow_vertex.

This is probably a dEQP bug.

Fixes: d573d1d82524b8a2e5f56938069cabc0f0176a0e

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5209>
---

diff --git a/src/gallium/drivers/radeonsi/si_state.c b/src/gallium/drivers/radeonsi/si_state.c
index 808f4af9192..f17e8b57a13 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -4479,7 +4479,8 @@ static void *si_create_sampler_state(struct pipe_context *ctx,
    unsigned max_aniso = sscreen->force_aniso >= 0 ? sscreen->force_aniso : state->max_anisotropy;
    unsigned max_aniso_ratio = si_tex_aniso_filter(max_aniso);
    bool trunc_coord = state->min_img_filter == PIPE_TEX_FILTER_NEAREST &&
-                      state->mag_img_filter == PIPE_TEX_FILTER_NEAREST;
+                      state->mag_img_filter == PIPE_TEX_FILTER_NEAREST &&
+                      state->compare_mode == PIPE_TEX_COMPARE_NONE;
    union pipe_color_union clamped_border_color;
 
    if (!rstate) {