From: Roland Scheidegger <srol...@vmware.com>
Similar fix to what is done for the non-llvm case, we could otherwise still
hit the stages (near certainly with gs) which crash. It is probably a much
better idea to skip trying to draw at that point anyway.
---
.../draw/draw_pt_fetch_shade_pipeline_llvm.c | 42 +++++++++++---------
1 file changed, 24 insertions(+), 18 deletions(-)
diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
index b0c18ed..a8ddad6 100644
--- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
@@ -300,31 +300,37 @@ llvm_pipeline_generic( struct draw_pt_middle_end *middle,
FREE(vert_info->verts);
vert_info = &gs_vert_info;
prim_info = &gs_prim_info;
-
- clipped = draw_pt_post_vs_run( fpme->post_vs, vert_info );
-
}
/* stream output needs to be done before clipping */
draw_pt_so_emit( fpme->so_emit,
- vert_info,
+ vert_info,
prim_info );
- if (clipped) {
- opt |= PT_PIPELINE;
- }
-
- /* Do we need to run the pipeline? Now will come here if clipped
+ /*
+ * if there's no position, need to stop now, or the latter stages
+ * will try to access non-existent position output.
*/
- if (opt & PT_PIPELINE) {
- pipeline( fpme,
- vert_info,
- prim_info );
- }
- else {
- emit( fpme->emit,
- vert_info,
- prim_info );
+ if (draw_current_shader_position_output(draw) != -1) {
+ if ((opt & PT_SHADE) && gshader) {
+ clipped = draw_pt_post_vs_run( fpme->post_vs, vert_info );
+ }
+ if (clipped) {
+ opt |= PT_PIPELINE;
+ }
+
+ /* Do we need to run the pipeline? Now will come here if clipped
+ */
+ if (opt & PT_PIPELINE) {
+ pipeline( fpme,
+ vert_info,
+ prim_info );
+ }
+ else {
+ emit( fpme->emit,
+ vert_info,
+ prim_info );
+ }
}
FREE(vert_info->verts);
}
--
1.7.9.5
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
