panfrost: Fixup stream out information per variant

We could probably get away with doing this once per pipe_shader_state
but let's not jump down that rabbit hole quite yet.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>

src/gallium/drivers/panfrost/pan_context.c

@@ -2129,6 +2129,13 @@ panfrost_bind_shader_state(
                                         &outputs_written);
 
                 shader_state->compiled = true;
+
+                /* Fixup the stream out information, since what Gallium returns
+                 * normally is mildly insane */
+
+                shader_state->stream_output = variants->base.stream_output;
+                shader_state->so_mask =
+                        update_so_info(&shader_state->stream_output, outputs_written);
         }
 }
 

src/gallium/drivers/panfrost/pan_context.h

@@ -232,6 +232,8 @@ struct panfrost_shader_state {
 
         struct mali_attr_meta varyings[PIPE_MAX_ATTRIBS];
         gl_varying_slot varyings_loc[PIPE_MAX_ATTRIBS];
+        struct pipe_stream_output_info stream_output;
+        uint64_t so_mask;
 
         unsigned sysval_count;
         unsigned sysval[MAX_SYSVAL_COUNT];