From: Brian Paul <brianp@vmware.com>
Date: Thu, 9 Dec 2010 02:00:32 +0000 (-0700)
Subject: draw: setup instance ID for VS interpreter
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0be042cb4d256393750f7060d79bdaa2cd47d72e;p=mesa.git

draw: setup instance ID for VS interpreter
---

diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c
index dab3eb1ca8e..08608b480e0 100644
--- a/src/gallium/auxiliary/draw/draw_vs_exec.c
+++ b/src/gallium/auxiliary/draw/draw_vs_exec.c
@@ -99,6 +99,12 @@ vs_exec_run_linear( struct draw_vertex_shader *shader,
    tgsi_exec_set_constant_buffers(machine, PIPE_MAX_CONSTANT_BUFFERS,
                                   constants, const_size);
 
+   if (shader->info.uses_instanceid) {
+      unsigned i = machine->SysSemanticToIndex[TGSI_SEMANTIC_INSTANCEID];
+      assert(i < Elements(machine->SystemValue));
+      machine->SystemValue[i][0] = shader->draw->instance_id;
+   }
+
    for (i = 0; i < count; i += MAX_TGSI_VERTICES) {
       unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i);