gallium: Implement draw_vbo and set_index_buffer for all drivers.

Some drivers define a generic function that is called by all drawing
functions.  To implement draw_vbo for such drivers, either draw_vbo
calls the generic function or the prototype of the generic function is
changed to match draw_vbo.

Other drivers have no such generic function.  draw_vbo is implemented by
calling either draw_arrays and draw_elements.

For most drivers, set_index_buffer does not mark the state dirty for
tracking.  Instead, the index buffer state is emitted whenever draw_vbo
is called, just like the case with draw_elements.  It surely can be
improved.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gallium/drivers/r600/r600_context.h b/src/gallium/drivers/r600/r600_context.h
index 1f03b202ee..9427c19d05 100644
--- a/src/gallium/drivers/r600/r600_context.h
+++ b/src/gallium/drivers/r600/r600_context.h
@@ -157,6 +157,7 @@ struct r600_context {
 	struct r600_context_state	*vs_sampler_view[PIPE_MAX_ATTRIBS];
 	struct r600_vertex_element	*vertex_elements;
 	struct pipe_vertex_buffer	vertex_buffer[PIPE_MAX_ATTRIBS];
+	struct pipe_index_buffer	index_buffer;
 };
 
 #if 0
@@ -201,6 +202,8 @@ void r600_draw_range_elements(struct pipe_context *ctx,
 		unsigned index_size, int index_bias, unsigned min_index,
 		unsigned max_index, unsigned mode,
 		unsigned start, unsigned count);
+void r600_draw_vbo(struct pipe_context *ctx,
+                   const struct pipe_draw_info *info);
 
 void r600_init_blit_functions(struct r600_context *rctx);
 void r600_init_state_functions(struct r600_context *rctx);