From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Wed, 30 Mar 2016 03:29:07 +0000 (-0700)
Subject: nir/spirv: Set a default number of invocations for geometry shaders
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cf2257069cbde19fd177a02c079206914aac5d14;p=mesa.git

nir/spirv: Set a default number of invocations for geometry shaders

The SPIR-V spec says geometry shaders are supposed to have one invocation
by default.  The execution mode is only required if there are multiple
invocations.
---

diff --git a/src/compiler/nir/spirv/spirv_to_nir.c b/src/compiler/nir/spirv/spirv_to_nir.c
index 663f41fa876..948454494fa 100644
--- a/src/compiler/nir/spirv/spirv_to_nir.c
+++ b/src/compiler/nir/spirv/spirv_to_nir.c
@@ -2676,6 +2676,9 @@ spirv_to_nir(const uint32_t *words, size_t word_count,
 
    b->shader = nir_shader_create(NULL, stage, options);
 
+   /* Set shader info defaults */
+   b->shader->info.gs.invocations = 1;
+
    /* Parse execution modes */
    vtn_foreach_execution_mode(b, b->entry_point,
                               vtn_handle_execution_mode, NULL);