anv: Perform rasterizer discard in the SOL stage instead of the clipper.

See commit b0629e6894513a2c49a018bc3342a4e55435a236, where we discovered
that the SOL stage's "Rendering Disable" feature is a lot faster at
throwing away all geometry than the clipper's "reject all" mode.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>

1 files changed, 10 insertions, 2 deletions

diff --git a/src/intel/vulkan/genX_pipeline_util.h b/src/intel/vulkan/genX_pipeline_util.h
index 516fc49..c134d5d 100644
--- a/src/intel/vulkan/genX_pipeline_util.h
+++ b/src/intel/vulkan/genX_pipeline_util.h
@@ -666,8 +666,7 @@ emit_3dstate_clip(struct anv_pipeline *pipeline,
       clip.APIMode                  = APIMODE_D3D,
       clip.ViewportXYClipTestEnable = true;
 
-      clip.ClipMode = rs_info->rasterizerDiscardEnable ?
-         CLIPMODE_REJECT_ALL : CLIPMODE_NORMAL;
+      clip.ClipMode = CLIPMODE_NORMAL;
 
       clip.TriangleStripListProvokingVertexSelect = 0;
       clip.LineStripListProvokingVertexSelect     = 0;
@@ -687,3 +686,12 @@ emit_3dstate_clip(struct anv_pipeline *pipeline,
 #endif
    }
 }
+
+static void
+emit_3dstate_streamout(struct anv_pipeline *pipeline,
+                       const VkPipelineRasterizationStateCreateInfo *rs_info)
+{
+   anv_batch_emit(&pipeline->batch, GENX(3DSTATE_STREAMOUT), so) {
+      so.RenderingDisable = rs_info->rasterizerDiscardEnable;
+   }
+}