gallium: implement set_sample_mask() in all drivers

prevents segfault when state trackers try to set default mask.
Other option would be to make this required only for drivers
supporting multisampling, but this seems more clean.
Only dummy implementations (for normal drivers) provided (no driver
supports multisampling yet neither).

1 files changed, 7 insertions, 0 deletions

diff --git a/src/gallium/drivers/nvfx/nvfx_state.c b/src/gallium/drivers/nvfx/nvfx_state.c
index 315de492da..3c566808d0 100644
--- a/src/gallium/drivers/nvfx/nvfx_state.c
+++ b/src/gallium/drivers/nvfx/nvfx_state.c
@@ -506,6 +506,12 @@ nvfx_set_clip_state(struct pipe_context *pipe,
 }
 
 static void
+nvfx_set_sample_mask(struct pipe_context *pipe,
+		     unsigned sample_mask)
+{
+}
+
+static void
 nvfx_set_constant_buffer(struct pipe_context *pipe, uint shader, uint index,
 			 struct pipe_resource *buf )
 {
@@ -644,6 +650,7 @@ nvfx_init_state_functions(struct nvfx_context *nvfx)
 	nvfx->pipe.set_blend_color = nvfx_set_blend_color;
         nvfx->pipe.set_stencil_ref = nvfx_set_stencil_ref;
 	nvfx->pipe.set_clip_state = nvfx_set_clip_state;
+	nvfx->pipe.set_sample_mask = nvfx_set_sample_mask;
 	nvfx->pipe.set_constant_buffer = nvfx_set_constant_buffer;
 	nvfx->pipe.set_framebuffer_state = nvfx_set_framebuffer_state;
 	nvfx->pipe.set_polygon_stipple = nvfx_set_polygon_stipple;