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authorBrian Paul <[email protected]>2010-12-08 19:00:32 -0700
committerBrian Paul <[email protected]>2010-12-08 19:00:32 -0700
commit0be042cb4d256393750f7060d79bdaa2cd47d72e (patch)
treead153fb00ece82c16d80d8269d9a8bbeb75bad7d /src/gallium/auxiliary
parent691048a22acf930e263711cf206e792a1b52f342 (diff)
draw: setup instance ID for VS interpreter
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r--src/gallium/auxiliary/draw/draw_vs_exec.c6
1 files changed, 6 insertions, 0 deletions
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);