gallium: add facilities for indirect drawing

v2:
Added comments to util_draw_indirect, clarified and fixed map size.
Removed unlikely().

2 files changed, 8 insertions, 0 deletions

diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c
index ebabac051df..b75c10f3f05 100644
--- a/src/gallium/drivers/softpipe/sp_draw_arrays.c
+++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c
@@ -34,6 +34,7 @@
 #include "pipe/p_defines.h"
 #include "pipe/p_context.h"
 #include "util/u_inlines.h"
+#include "util/u_draw.h"
 #include "util/u_prim.h"
 
 #include "sp_context.h"
@@ -67,6 +68,11 @@ softpipe_draw_vbo(struct pipe_context *pipe,
    if (!softpipe_check_render_cond(sp))
       return;
 
+   if (info->indirect) {
+      util_draw_indirect(pipe, info);
+      return;
+   }
+
    sp->reduced_api_prim = u_reduced_prim(info->mode);
 
    if (sp->dirty) {
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index ee3e0f2aef6..cfb10b17a87 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -200,6 +200,8 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
       return 0;
+   case PIPE_CAP_DRAW_INDIRECT:
+      return 1;
    }
    /* should only get here on unhandled cases */
    debug_printf("Unexpected PIPE_CAP %d query\n", param);