[Mesa-dev] [PATCH 18/53] r600: disable SB for now on tess related shaders.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

Note we have to disable on vertex shaders when we are
operating in tes mode.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/gallium/drivers/r600/r600_shader.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index d13d2d7..b7d21fb 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -161,6 +161,13 @@ int r600_pipe_shader_create(struct pipe_context *ctx,
 		R600_ERR("translation from TGSI failed !\n");
 		goto error;
 	}
+	if (shader->shader.processor_type == TGSI_PROCESSOR_VERTEX) {
+		/* only disable for vertex shaders in tess paths */
+		if (key.vs.as_ls)
+			use_sb = 0;
+	}
+	use_sb &= (shader->shader.processor_type != TGSI_PROCESSOR_TESS_CTRL);
+	use_sb &= (shader->shader.processor_type != TGSI_PROCESSOR_TESS_EVAL);
 
 	/* disable SB for shaders using doubles */
 	use_sb &= !shader->shader.uses_doubles;
-- 
2.5.0