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authorKeith Whitwell <[email protected]>2008-12-23 13:26:25 +0000
committerKeith Whitwell <[email protected]>2008-12-23 15:11:41 +0000
commitf5d4274b4a8effc70c238060c3728aea629663df (patch)
treebee1ec5d2e694f4678851a4b848bfeaa2ad831ef
parented7ba03256fc4503d5d7483d032014ac9e8242fe (diff)
draw: allow driver-override of draw_need_pipeline()
-rw-r--r--src/gallium/auxiliary/draw/draw_pipe_validate.c21
-rw-r--r--src/gallium/auxiliary/draw/draw_vbuf.h11
2 files changed, 28 insertions, 4 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_validate.c b/src/gallium/auxiliary/draw/draw_pipe_validate.c
index f34c68728ef..03e842ce082 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_validate.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_validate.c
@@ -33,6 +33,7 @@
#include "draw_private.h"
#include "draw_pipe.h"
#include "draw_context.h"
+#include "draw_vbuf.h"
static boolean points( unsigned prim )
{
@@ -52,16 +53,28 @@ static boolean triangles( unsigned prim )
}
/**
- * Check if we need any special pipeline stages, or whether
- * prims/verts can go through untouched. Don't test for bypass
- * clipping or vs modes, this function is just about the primitive
- * pipeline stages.
+ * Default version of a function to check if we need any special
+ * pipeline stages, or whether prims/verts can go through untouched.
+ * Don't test for bypass clipping or vs modes, this function is just
+ * about the primitive pipeline stages.
+ *
+ * This can be overridden by the driver.
*/
boolean
draw_need_pipeline(const struct draw_context *draw,
const struct pipe_rasterizer_state *rasterizer,
unsigned int prim )
{
+ /* If the driver has overridden this, use that version:
+ */
+ if (draw->render &&
+ draw->render->need_pipeline)
+ {
+ return draw->render->need_pipeline( draw->render,
+ rasterizer,
+ prim );
+ }
+
/* Don't have to worry about triangles turning into lines/points
* and triggering the pipeline, because we have to trigger the
* pipeline *anyway* if unfilled mode is active.
diff --git a/src/gallium/auxiliary/draw/draw_vbuf.h b/src/gallium/auxiliary/draw/draw_vbuf.h
index b0aa2df3099..9ac068c47b8 100644
--- a/src/gallium/auxiliary/draw/draw_vbuf.h
+++ b/src/gallium/auxiliary/draw/draw_vbuf.h
@@ -55,6 +55,17 @@ struct vbuf_render {
unsigned max_vertex_buffer_bytes;
/**
+ * Query if the hardware driver needs assistance for a particular
+ * combination of rasterizer state and primitive.
+ *
+ * Currently optional.
+ */
+ boolean (*need_pipeline)(const struct vbuf_render *render,
+ const struct pipe_rasterizer_state *rasterizer,
+ unsigned int prim );
+
+
+ /**
* Get the hardware vertex format.
*
* XXX: have this in draw_context instead?