More work on vertex feedback / glRasterPos. Basic rasterpos works now.

3 files changed, 15 insertions, 1 deletions

diff --git a/src/mesa/pipe/draw/draw_context.c b/src/mesa/pipe/draw/draw_context.c
index 3c095810e55..4498293e92b 100644
--- a/src/mesa/pipe/draw/draw_context.c
+++ b/src/mesa/pipe/draw/draw_context.c
@@ -48,6 +48,7 @@ struct draw_context *draw_create( void )
    draw->pipeline.clip      = draw_clip_stage( draw );
    draw->pipeline.flatshade = draw_flatshade_stage( draw );
    draw->pipeline.cull      = draw_cull_stage( draw );
+   draw->pipeline.feedback  = draw_feedback_stage( draw );
 
    ASSIGN_4V( draw->plane[0], -1,  0,  0, 1 );
    ASSIGN_4V( draw->plane[1],  1,  0,  0, 1 );
@@ -147,6 +148,14 @@ static void validate_pipeline( struct draw_context *draw )
 }
 
 
+void draw_set_feedback_state( struct draw_context *draw,
+                              const struct pipe_feedback_state *feedback )
+{
+   draw->feedback = *feedback;
+   validate_pipeline( draw );
+}
+
+
 /**
  * Register new primitive setup/rendering state.
  * This causes the drawing pipeline to be rebuilt.
@@ -245,6 +254,7 @@ void
 draw_set_mapped_feedback_buffer(struct draw_context *draw, uint index,
                                 void *buffer, uint size)
 {
+   assert(index < PIPE_MAX_FEEDBACK_ATTRIBS);
    draw->mapped_feedback_buffer[index] = buffer;
    draw->mapped_feedback_buffer_size[index] = size; /* in bytes */
 }
diff --git a/src/mesa/pipe/draw/draw_context.h b/src/mesa/pipe/draw/draw_context.h
index 50315749693..2babc02f45f 100644
--- a/src/mesa/pipe/draw/draw_context.h
+++ b/src/mesa/pipe/draw/draw_context.h
@@ -83,6 +83,9 @@ void draw_set_viewport_state( struct draw_context *draw,
 void draw_set_clip_state( struct draw_context *pipe,
                           const struct pipe_clip_state *clip );
 
+void draw_set_feedback_state( struct draw_context *draw,
+                              const struct pipe_feedback_state * );
+
 void draw_set_setup_state( struct draw_context *draw,
                            const struct pipe_setup_state *setup );
 
diff --git a/src/mesa/pipe/draw/draw_feedback.c b/src/mesa/pipe/draw/draw_feedback.c
index 2729f44dc69..ecdd98e83d7 100644
--- a/src/mesa/pipe/draw/draw_feedback.c
+++ b/src/mesa/pipe/draw/draw_feedback.c
@@ -81,7 +81,8 @@ feedback_vertex(struct draw_stage *stage, const struct vertex_header *vertex)
 
    for (i = 0; i < feedback->num_attribs; i++) {
       const uint attr = feedback->attrib[i];
-      const float *src = attr ? vertex->data[attr] : vertex->clip;
+      const uint slot = stage->draw->vertex_info.attrib_to_slot[attr];
+      const float *src = attr ? vertex->data[slot] : vertex->clip;
       const uint size = feedback->size[i];
       float *dest = fs->dest[i * select];