draw: implement distance culling

[mesa.git] / src / gallium / auxiliary / draw / draw_context.c

diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index 81b3068553d877b7653bcdf9d12e0bb01a48f8e8..0dbddb451112bf04141a54aba8677dfd11020575 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -752,6 +752,23 @@ draw_current_shader_num_written_clipdistances(const struct draw_context *draw)
    return draw->vs.vertex_shader->info.num_written_clipdistance;
 }
 
+
+uint
+draw_current_shader_culldistance_output(const struct draw_context *draw, int index)
+{
+   if (draw->gs.geometry_shader)
+      return draw->gs.geometry_shader->culldistance_output[index];
+   return draw->vs.vertex_shader->culldistance_output[index];
+}
+
+uint
+draw_current_shader_num_written_culldistances(const struct draw_context *draw)
+{
+   if (draw->gs.geometry_shader)
+      return draw->gs.geometry_shader->info.num_written_culldistance;
+   return draw->vs.vertex_shader->info.num_written_culldistance;
+}
+
 /**
  * Return a pointer/handle for a driver/CSO rasterizer object which
  * disabled culling, stippling, unfilled tris, etc.