6 files changed, 9 insertions, 10 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_context.h b/src/gallium/drivers/llvmpipe/lp_context.h
index abfe852bae5..051596878d9 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.h
+++ b/src/gallium/drivers/llvmpipe/lp_context.h
@@ -91,6 +91,7 @@ struct llvmpipe_context {
 
    struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
    int num_so_targets;
+   unsigned so_append_bitmask;
    struct pipe_query_data_so_statistics so_stats;
    unsigned num_primitives_generated;
 
diff --git a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
index 4e239043ec4..11b665af8ef 100644
--- a/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
+++ b/src/gallium/drivers/llvmpipe/lp_draw_arrays.c
@@ -104,7 +104,7 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
       }
    }
    draw_set_mapped_so_targets(draw, lp->num_so_targets,
-                              lp->so_targets);
+                              lp->so_targets, lp->so_append_bitmask);
 
    llvmpipe_prepare_vertex_sampling(lp,
                                     lp->num_sampler_views[PIPE_SHADER_VERTEX],
@@ -134,7 +134,7 @@ llvmpipe_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info)
    if (mapped_indices) {
       draw_set_indexes(draw, NULL, 0, 0);
    }
-   draw_set_mapped_so_targets(draw, 0, NULL);
+   draw_set_mapped_so_targets(draw, 0, NULL, 0);
 
    if (lp->gs && !lp->gs->shader.tokens) {
       /* we have attached stream output to the vs for rendering,
diff --git a/src/gallium/drivers/llvmpipe/lp_state_so.c b/src/gallium/drivers/llvmpipe/lp_state_so.c
index fa58f79c9c1..c20ff26639d 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_so.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_so.c
@@ -70,17 +70,13 @@ llvmpipe_set_so_targets(struct pipe_context *pipe,
    int i;
    for (i = 0; i < num_targets; i++) {
       pipe_so_target_reference((struct pipe_stream_output_target **)&llvmpipe->so_targets[i], targets[i]);
-      /* if we're not appending then lets reset the internal
-         data of our so target */
-      if (!(append_bitmask & (1 << i)) && llvmpipe->so_targets[i]) {
-         llvmpipe->so_targets[i]->internal_offset = 0;
-         llvmpipe->so_targets[i]->emitted_vertices = 0;
-      }
    }
 
    for (; i < llvmpipe->num_so_targets; i++) {
       pipe_so_target_reference((struct pipe_stream_output_target **)&llvmpipe->so_targets[i], NULL);
    }
+
+   llvmpipe->so_append_bitmask = append_bitmask;
    llvmpipe->num_so_targets = num_targets;
 }
 
diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index 431864ae087..ea6c0f929c5 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -88,6 +88,7 @@ struct softpipe_context {
 
    struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
    unsigned num_so_targets;
+   unsigned so_append_bitmask;
    
    struct pipe_query_data_so_statistics so_stats;
    unsigned num_primitives_generated;
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index 45b1390de4d..cde4d51c734 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -112,7 +112,7 @@ softpipe_draw_vbo(struct pipe_context *pipe,
    }
 
    draw_set_mapped_so_targets(draw, sp->num_so_targets,
-                              sp->so_targets);
+                              sp->so_targets, sp->so_append_bitmask);
 
    if (sp->gs && !sp->gs->shader.tokens) {
       /* we have an empty geometry shader with stream output, so
@@ -135,7 +135,7 @@ softpipe_draw_vbo(struct pipe_context *pipe,
       draw_set_indexes(draw, NULL, 0, 0);
    }
 
-   draw_set_mapped_so_targets(draw, 0, NULL);
+   draw_set_mapped_so_targets(draw, 0, NULL, 0);
 
    /*
     * TODO: Flush only when a user vertex/index buffer is present
diff --git a/src/gallium/drivers/softpipe/sp_state_so.c b/src/gallium/drivers/softpipe/sp_state_so.c
index 3682c6c6742..96bb6b17ae8 100644
--- a/src/gallium/drivers/softpipe/sp_state_so.c
+++ b/src/gallium/drivers/softpipe/sp_state_so.c
@@ -77,6 +77,7 @@ softpipe_set_so_targets(struct pipe_context *pipe,
    }
 
    softpipe->num_so_targets = num_targets;
+   softpipe->so_append_bitmask = append_bitmask;
 }
 
 void