From 8d09d621373747235d90099adf5bed647090ec97 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Tue, 24 Mar 2020 07:47:16 +1000
Subject: [PATCH] gallivm/sample: add num samples query for txqs (v2)

v2: add false to the existing users (Roland)

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4122>
---
 src/gallium/auxiliary/gallivm/lp_bld_nir.c        | 1 +
 src/gallium/auxiliary/gallivm/lp_bld_sample.h     | 1 +
 src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c | 6 ++++++
 src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c   | 1 +
 4 files changed, 9 insertions(+)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_nir.c b/src/gallium/auxiliary/gallivm/lp_bld_nir.c
index 4944b0f944e..671b2800ebe 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_nir.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_nir.c
@@ -1472,6 +1472,7 @@ static void visit_txs(struct lp_build_nir_context *bld_base, nir_tex_instr *inst
    params.explicit_lod = explicit_lod;
    params.is_sviewinfo = TRUE;
    params.sizes_out = sizes_out;
+   params.samples_only = false;
 
    if (instr->op == nir_texop_query_levels)
       params.explicit_lod = bld_base->uint_bld.zero;
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample.h b/src/gallium/auxiliary/gallivm/lp_bld_sample.h
index ac47c9e5606..954bce600ec 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample.h
@@ -123,6 +123,7 @@ struct lp_sampler_size_query_params
    unsigned target;
    LLVMValueRef context_ptr;
    boolean is_sviewinfo;
+   bool samples_only;
    enum lp_sampler_lod_property lod_property;
    LLVMValueRef explicit_lod;
    LLVMValueRef *sizes_out;
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
index ea51ed1f2d0..5b623eda26b 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_sample_soa.c
@@ -3902,6 +3902,12 @@ lp_build_size_query_soa(struct gallivm_state *gallivm,
 
    lp_build_context_init(&bld_int_vec4, gallivm, lp_type_int_vec(32, 128));
 
+   if (params->samples_only) {
+      params->sizes_out[0] = lp_build_broadcast(gallivm, lp_build_vec_type(gallivm, params->int_type),
+                                                dynamic_state->num_samples(dynamic_state, gallivm,
+                                                                           context_ptr, texture_unit));
+      return;
+   }
    if (params->explicit_lod) {
       /* FIXME: this needs to honor per-element lod */
       lod = LLVMBuildExtractElement(gallivm->builder, params->explicit_lod,
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index efdce32d2d2..f61d05fded7 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -2644,6 +2644,7 @@ emit_size_query( struct lp_build_tgsi_soa_context *bld,
    params.lod_property = lod_property;
    params.explicit_lod = explicit_lod;
    params.sizes_out = sizes_out;
+   params.samples_only = false;
 
    bld->sampler->emit_size_query(bld->sampler,
                                  bld->bld_base.base.gallivm,
-- 
2.30.2