r300g: derive user buffer sizes at draw time

This only uploads the [min_index, max_index] range instead of [0, userbuf size],
which greatly speeds up user buffer uploads.

This is also a prerequisite for atomizing vertex arrays in st/mesa.

1 files changed, 5 insertions, 5 deletions

diff --git a/src/gallium/drivers/r300/r300_screen_buffer.h b/src/gallium/drivers/r300/r300_screen_buffer.h
index 70ffcf506c..58dec8539b 100644
--- a/src/gallium/drivers/r300/r300_screen_buffer.h
+++ b/src/gallium/drivers/r300/r300_screen_buffer.h
@@ -61,7 +61,8 @@ struct r300_buffer
 
 /* Functions. */
 
-void r300_upload_user_buffers(struct r300_context *r300);
+void r300_upload_user_buffers(struct r300_context *r300,
+			      int min_index, int max_index);
 
 void r300_upload_index_buffer(struct r300_context *r300,
 			      struct pipe_resource **index_buffer,
@@ -72,9 +73,8 @@ struct pipe_resource *r300_buffer_create(struct pipe_screen *screen,
 					 const struct pipe_resource *templ);
 
 struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen,
-					      void *ptr,
-					      unsigned bytes,
-					      unsigned usage);
+					      void *ptr, unsigned size,
+					      unsigned bind);
 
 unsigned r300_buffer_is_referenced(struct pipe_context *context,
 				   struct pipe_resource *buf,
@@ -87,7 +87,7 @@ static INLINE struct r300_buffer *r300_buffer(struct pipe_resource *buffer)
     return (struct r300_buffer *)buffer;
 }
 
-static INLINE boolean r300_buffer_is_user_buffer(struct pipe_resource *buffer)
+static INLINE boolean r300_is_user_buffer(struct pipe_resource *buffer)
 {
     return r300_buffer(buffer)->user_buffer ? true : false;
 }