svga: add new svga_winsys_context::get_command_buffer_size()

To ask how large the current command buffer is.  Will be used for
a new GALLIUM_HUD graph.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>

diff --git a/src/gallium/drivers/svga/svga_winsys.h b/src/gallium/drivers/svga/svga_winsys.h
index 562c6690fc1bd9116943c09226299054f174133d..0ad6b5e6c76dde915795e80dc5584ea2014463c2 100644 (file)
--- a/src/gallium/drivers/svga/svga_winsys.h
+++ b/src/gallium/drivers/svga/svga_winsys.h
@@ -107,6 +107,12 @@ struct svga_winsys_context
    (*reserve)(struct svga_winsys_context *swc, 
              uint32_t nr_bytes, uint32_t nr_relocs );
    
+   /**
+    * Returns current size of command buffer, in bytes.
+    */
+   unsigned
+   (*get_command_buffer_size)(struct svga_winsys_context *swc);
+
    /**
     * Emit a relocation for a host surface.
     * 

diff --git a/src/gallium/winsys/svga/drm/vmw_context.c b/src/gallium/winsys/svga/drm/vmw_context.c
index dae121e4053397845b3913e8445cf3f5b86fa8d3..8d23bff5d748b5ff442377bf5a2a88265314ecae 100644 (file)
--- a/src/gallium/winsys/svga/drm/vmw_context.c
+++ b/src/gallium/winsys/svga/drm/vmw_context.c
@@ -315,6 +315,13 @@ vmw_swc_reserve(struct svga_winsys_context *swc,
    return vswc->command.buffer + vswc->command.used;
 }
 
+static unsigned
+vmw_swc_get_command_buffer_size(struct svga_winsys_context *swc)
+{
+   const struct vmw_svga_winsys_context *vswc = vmw_svga_winsys_context(swc);
+   return vswc->command.used;
+}
+
 static void
 vmw_swc_context_relocation(struct svga_winsys_context *swc,
                           uint32 *cid)
@@ -761,6 +768,7 @@ vmw_svga_winsys_context_create(struct svga_winsys_screen *sws)
 
    vswc->base.destroy = vmw_swc_destroy;
    vswc->base.reserve = vmw_swc_reserve;
+   vswc->base.get_command_buffer_size = vmw_swc_get_command_buffer_size;
    vswc->base.surface_relocation = vmw_swc_surface_relocation;
    vswc->base.region_relocation = vmw_swc_region_relocation;
    vswc->base.mob_relocation = vmw_swc_mob_relocation;