draw/softpipe: EXT_transform_feedback support (v2)

This replaces the current code with an implementation compatible with
the new gallium interface. I've left some of the remains of the interface
intact so llvmpipe keeps building correctly, and I'll take a look at fixing
llvmpipe up later.

v2: fixup as per Brian's review

Signed-off-by: Dave Airlie <[email protected]>

1 files changed, 5 insertions, 7 deletions

diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index 5442aba9019..c657bd61fcf 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -55,7 +55,6 @@ struct sp_vertex_shader;
 struct sp_velems_state;
 struct sp_so_state;
 
-
 struct softpipe_context {
    struct pipe_context pipe;  /**< base class */
 
@@ -88,13 +87,12 @@ struct softpipe_context {
    struct pipe_viewport_state viewport;
    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
    struct pipe_index_buffer index_buffer;
-   struct {
-      struct softpipe_resource *buffer[PIPE_MAX_SO_BUFFERS];
-      int offset[PIPE_MAX_SO_BUFFERS];
-      int so_count[PIPE_MAX_SO_BUFFERS];
-      int num_buffers;
-   } so_target;
+
+   struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
+   int num_so_targets;
+   
    struct pipe_query_data_so_statistics so_stats;
+   unsigned num_primitives_generated;
 
    unsigned num_fragment_samplers;
    unsigned num_fragment_sampler_views;