gallium: remove pipe_index_buffer and set_index_buffer

pipe_draw_info::indexed is replaced with index_size. index_size == 0 means
non-indexed.

Instead of pipe_index_buffer::offset, pipe_draw_info::start is used.
For indexed indirect draws, pipe_draw_info::start is added to the indirect
start. This is the only case when "start" affects indirect draws.

pipe_draw_info::index is a union. Use either index::resource or
index::user depending on the value of pipe_draw_info::has_user_indices.

v2: fixes for nine, svga

3 files changed, 6 insertions, 25 deletions

diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index a57f5875537..7ce4dc3560d 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -88,7 +88,6 @@ struct softpipe_context {
    struct pipe_shader_buffer buffers[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_BUFFERS];
    struct pipe_viewport_state viewports[PIPE_MAX_VIEWPORTS];
    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
-   struct pipe_index_buffer index_buffer;
    struct pipe_resource *mapped_vs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
    struct pipe_resource *mapped_gs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index 137ad0565b3..6363701cf92 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -96,21 +96,17 @@ softpipe_draw_vbo(struct pipe_context *pipe,
    }
 
    /* Map index buffer, if present */
-   if (info->indexed) {
+   if (info->index_size) {
       unsigned available_space = ~0;
-      mapped_indices = sp->index_buffer.user_buffer;
+      mapped_indices = info->has_user_indices ? info->index.user : NULL;
       if (!mapped_indices) {
-         mapped_indices = softpipe_resource_data(sp->index_buffer.buffer);
-         if (sp->index_buffer.buffer->width0 > sp->index_buffer.offset)
-            available_space =
-               (sp->index_buffer.buffer->width0 - sp->index_buffer.offset);
-         else
-            available_space = 0;
+         mapped_indices = softpipe_resource_data(info->index.resource);
+         available_space = info->index.resource->width0;
       }
 
       draw_set_indexes(draw,
-                       (ubyte *) mapped_indices + sp->index_buffer.offset,
-                       sp->index_buffer.index_size, available_space);
+                       (ubyte *) mapped_indices,
+                       info->index_size, available_space);
    }
 
 
diff --git a/src/gallium/drivers/softpipe/sp_state_vertex.c b/src/gallium/drivers/softpipe/sp_state_vertex.c
index 48c8d2cb39f..a7a8736390d 100644
--- a/src/gallium/drivers/softpipe/sp_state_vertex.c
+++ b/src/gallium/drivers/softpipe/sp_state_vertex.c
@@ -97,19 +97,6 @@ softpipe_set_vertex_buffers(struct pipe_context *pipe,
 }
 
 
-static void
-softpipe_set_index_buffer(struct pipe_context *pipe,
-                          const struct pipe_index_buffer *ib)
-{
-   struct softpipe_context *softpipe = softpipe_context(pipe);
-
-   if (ib)
-      memcpy(&softpipe->index_buffer, ib, sizeof(softpipe->index_buffer));
-   else
-      memset(&softpipe->index_buffer, 0, sizeof(softpipe->index_buffer));
-}
-
-
 void
 softpipe_init_vertex_funcs(struct pipe_context *pipe)
 {
@@ -118,5 +105,4 @@ softpipe_init_vertex_funcs(struct pipe_context *pipe)
    pipe->delete_vertex_elements_state = softpipe_delete_vertex_elements_state;
 
    pipe->set_vertex_buffers = softpipe_set_vertex_buffers;
-   pipe->set_index_buffer = softpipe_set_index_buffer;
 }