[Mesa-dev] [PATCH 09/30] r600g: don't enable SB for geom shaders

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

SB needs fixes for three GS instructions it seems to raise
them outside loops etc despite my best efforts.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/gallium/drivers/r600/r600_shader.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 73b2909..59fda7b 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -158,6 +158,9 @@ int r600_pipe_shader_create(struct pipe_context *ctx,
 		return r;
 	}
 
+	/* disable SB for geom shaders - it can't handle the CF_EMIT instructions */
+	use_sb &= (shader->shader.processor_type != TGSI_PROCESSOR_GEOMETRY);
+
 	/* Check if the bytecode has already been built.  When using the llvm
 	 * backend, r600_shader_from_tgsi() will take care of building the
 	 * bytecode.
-- 
1.8.3.1