r600g: implement draw_rectangle callback

The color resolve on r6xx needs PT_RECTLIST. Using conventional primitive
types (triangles and quads) produces an ugly line between two diagonally
opposite corners. I guess a rectangular point sprite would work too.

2 files changed, 16 insertions, 14 deletions

diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c
index ad4ccd9eb46..03ed91fa0b5 100644
--- a/src/gallium/auxiliary/util/u_blitter.c
+++ b/src/gallium/auxiliary/util/u_blitter.c
@@ -123,13 +123,6 @@ struct blitter_context_priv
    boolean has_stencil_export;
 };
 
-static void blitter_draw_rectangle(struct blitter_context *blitter,
-                                   unsigned x, unsigned y,
-                                   unsigned width, unsigned height,
-                                   float depth,
-                                   enum blitter_attrib_type type,
-                                   const union pipe_color_union *attrib);
-
 
 struct blitter_context *util_blitter_create(struct pipe_context *pipe)
 {
@@ -146,7 +139,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
       return NULL;
 
    ctx->base.pipe = pipe;
-   ctx->base.draw_rectangle = blitter_draw_rectangle;
+   ctx->base.draw_rectangle = util_blitter_draw_rectangle;
 
    /* init state objects for them to be considered invalid */
    ctx->base.saved_blend_state = INVALID_PTR;
@@ -862,12 +855,12 @@ static void blitter_draw(struct blitter_context_priv *ctx,
    pipe_resource_reference(&buf, NULL);
 }
 
-static void blitter_draw_rectangle(struct blitter_context *blitter,
-                                   unsigned x1, unsigned y1,
-                                   unsigned x2, unsigned y2,
-                                   float depth,
-                                   enum blitter_attrib_type type,
-                                   const union pipe_color_union *attrib)
+void util_blitter_draw_rectangle(struct blitter_context *blitter,
+                                 unsigned x1, unsigned y1,
+                                 unsigned x2, unsigned y2,
+                                 float depth,
+                                 enum blitter_attrib_type type,
+                                 const union pipe_color_union *attrib)
 {
    struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
 
diff --git a/src/gallium/auxiliary/util/u_blitter.h b/src/gallium/auxiliary/util/u_blitter.h
index e06e8b12d53..2055fd64f40 100644
--- a/src/gallium/auxiliary/util/u_blitter.h
+++ b/src/gallium/auxiliary/util/u_blitter.h
@@ -129,6 +129,15 @@ struct pipe_context *util_blitter_get_pipe(struct blitter_context *blitter)
    return blitter->pipe;
 }
 
+/* The default function to draw a rectangle. This can only be used
+ * inside of the draw_rectangle callback if the driver overrides it. */
+void util_blitter_draw_rectangle(struct blitter_context *blitter,
+                                 unsigned x1, unsigned y1,
+                                 unsigned x2, unsigned y2,
+                                 float depth,
+                                 enum blitter_attrib_type type,
+                                 const union pipe_color_union *attrib);
+
 /*
  * These states must be saved before any of the following functions are called:
  * - vertex buffers