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

1 files changed, 24 insertions, 0 deletions

diff --git a/src/mesa/pipe/softpipe/sp_draw_arrays.c b/src/mesa/pipe/softpipe/sp_draw_arrays.c
index 5198a493da..7ea29a0a26 100644
--- a/src/mesa/pipe/softpipe/sp_draw_arrays.c
+++ b/src/mesa/pipe/softpipe/sp_draw_arrays.c
@@ -135,6 +135,19 @@ softpipe_draw_elements(struct pipe_context *pipe,
       draw_set_mapped_element_buffer(draw, 0, NULL);
    }
 
+   /* Map feedback buffers if enabled */
+   if (sp->feedback.enabled) {
+      const uint n = sp->feedback.interleaved ? 1 : sp->feedback.num_attribs;
+      for (i = 0; i < n; i++) {
+         void *ptr = pipe->winsys->buffer_map(pipe->winsys,
+                                              sp->feedback_buffer[i].buffer,
+                                              PIPE_BUFFER_FLAG_WRITE);
+         draw_set_mapped_feedback_buffer(draw, i, ptr,
+                                         sp->feedback_buffer[i].size);
+      }
+   }
+
+
    /* draw! */
    draw_arrays(draw, mode, start, count);
 
@@ -152,6 +165,17 @@ softpipe_draw_elements(struct pipe_context *pipe,
       draw_set_mapped_element_buffer(draw, 0, NULL);
    }
 
+   /* Unmap feedback buffers if enabled */
+   if (sp->feedback.enabled) {
+      const uint n = sp->feedback.interleaved ? 1 : sp->feedback.num_attribs;
+      for (i = 0; i < n; i++) {
+         pipe->winsys->buffer_unmap(pipe->winsys,
+                                    sp->feedback_buffer[i].buffer);
+         draw_set_mapped_feedback_buffer(draw, i, NULL, 0);
+      }
+   }
+
+
    softpipe_unmap_surfaces(sp);
    softpipe_unmap_constant_buffers(sp);