Mesa (master): radv: be smarter with the draw packets when executing secondary buffers

[Samuel Pitoiset]

Module: Mesa
Branch: master
Commit: 47d7d1861399563900d1f0ca31b06690f33049a1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=47d7d1861399563900d1f0ca31b06690f33049a1

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Mon Oct 16 14:15:54 2017 +0200

radv: be smarter with the draw packets when executing secondary buffers

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

---

 src/amd/vulkan/radv_cmd_buffer.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 64e7e2637b..2252d80e11 100644
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -2669,8 +2669,16 @@ void radv_CmdExecuteCommands(
 				secondary->state.emitted_compute_pipeline;
 		}
 
-		primary->state.last_primitive_reset_en = secondary->state.last_primitive_reset_en;
-		primary->state.last_primitive_reset_index = secondary->state.last_primitive_reset_index;
+		/* Only re-emit the draw packets when needed. */
+		if (secondary->state.last_primitive_reset_en != -1) {
+			primary->state.last_primitive_reset_en =
+				secondary->state.last_primitive_reset_en;
+		}
+
+		if (secondary->state.last_primitive_reset_index) {
+			primary->state.last_primitive_reset_index =
+				secondary->state.last_primitive_reset_index;
+		}
 	}
 
 	/* After executing commands from secondary buffers we have to dirty