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, 4 insertions, 1 deletions

diff --git a/src/gallium/drivers/nvfx/nvfx_context.h b/src/gallium/drivers/nvfx/nvfx_context.h
index e48f9f3aa88..d6cd272eed5 100644
--- a/src/gallium/drivers/nvfx/nvfx_context.h
+++ b/src/gallium/drivers/nvfx/nvfx_context.h
@@ -121,7 +121,8 @@ struct nvfx_context {
 	struct pipe_stencil_ref stencil_ref;
 	struct pipe_viewport_state viewport;
 	struct pipe_framebuffer_state framebuffer;
-	struct pipe_resource *idxbuf;
+	struct pipe_index_buffer idxbuf;
+	struct pipe_resource *idxbuf_buffer;
 	unsigned idxbuf_format;
 	struct nvfx_sampler_state *tex_sampler[PIPE_MAX_SAMPLERS];
 	struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
@@ -242,6 +243,8 @@ extern void nvfx_draw_elements(struct pipe_context *pipe,
                                unsigned indexSize, int indexBias,
                                unsigned mode, unsigned start,
                                unsigned count);
+extern void nvfx_draw_vbo(struct pipe_context *pipe,
+                          const struct pipe_draw_info *info);
 
 /* nvfx_vertprog.c */
 extern boolean nvfx_vertprog_validate(struct nvfx_context *nvfx);