st/vega: Add POLYGON_STENCIL and POLYGON_FILL renderer state.

The states are designated for polygon filling.  Polygon filling is a
two-pass process utilizing the stencil buffer.  polygon_fill and
polygon_array_fill functions are updated to make use of the state.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/gallium/state_trackers/vega/renderer.h b/src/gallium/state_trackers/vega/renderer.h
index 288c17f9c8..8d13c02f3b 100644
--- a/src/gallium/state_trackers/vega/renderer.h
+++ b/src/gallium/state_trackers/vega/renderer.h
@@ -37,6 +37,8 @@ struct pipe_resource;
 struct pipe_sampler_state;
 struct pipe_sampler_view;
 struct pipe_surface;
+struct pipe_vertex_element;
+struct pipe_vertex_buffer;
 
 struct renderer *renderer_create(struct vg_context *owner);
 void renderer_destroy(struct renderer *);
@@ -94,6 +96,26 @@ void renderer_filter(struct renderer *renderer,
 
 void renderer_filter_end(struct renderer *renderer);
 
+VGboolean renderer_polygon_stencil_begin(struct renderer *renderer,
+                                         struct pipe_vertex_element *velem,
+                                         VGFillRule rule,
+                                         VGboolean restore_dsa);
+
+void renderer_polygon_stencil(struct renderer *renderer,
+                              struct pipe_vertex_buffer *vbuf,
+                              VGuint mode, VGuint start, VGuint count);
+
+void renderer_polygon_stencil_end(struct renderer *renderer);
+
+VGboolean renderer_polygon_fill_begin(struct renderer *renderer,
+                                      VGboolean save_dsa);
+
+void renderer_polygon_fill(struct renderer *renderer,
+                           VGfloat min_x, VGfloat min_y,
+                           VGfloat max_x, VGfloat max_y);
+
+void renderer_polygon_fill_end(struct renderer *renderer);
+
 void renderer_draw_quad(struct renderer *,
                         VGfloat x1, VGfloat y1,
                         VGfloat x2, VGfloat y2,