st/mesa: re-arrange st_finalize_texture

Move the early-out for surface-based textures earlier. This narrows the
scope of the locking added in a follow-up commit.

Fix one remaining case of initializing a surface-based texture
without properly finalizing it.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/mesa/state_tracker/st_cb_texture.c

@@ -2473,9 +2473,6 @@ st_finalize_texture(struct gl_context *ctx,
          stObj->lastLevel = stObj->base._MaxLevel;
    }
 
-   firstImage = st_texture_image_const(stObj->base.Image[cubeMapFace][stObj->base.BaseLevel]);
-   assert(firstImage);
-
    /* Skip the loop over images in the common case of no images having
     * changed.  But if the GL_BASE_LEVEL or GL_MAX_LEVEL change to something we
     * haven't looked at, then we do need to look at those new images.
@@ -2486,6 +2483,14 @@ st_finalize_texture(struct gl_context *ctx,
       return GL_TRUE;
    }
 
+   /* If this texture comes from a window system, there is nothing else to do. */
+   if (stObj->surface_based) {
+      return GL_TRUE;
+   }
+
+   firstImage = st_texture_image_const(stObj->base.Image[cubeMapFace][stObj->base.BaseLevel]);
+   assert(firstImage);
+
    /* If both firstImage and stObj point to a texture which can contain
     * all active images, favour firstImage.  Note that because of the
     * completeness requirement, we know that the image dimensions
@@ -2498,11 +2503,6 @@ st_finalize_texture(struct gl_context *ctx,
       st_texture_release_all_sampler_views(st, stObj);
    }
 
-   /* If this texture comes from a window system, there is nothing else to do. */
-   if (stObj->surface_based) {
-      return GL_TRUE;
-   }
-
    /* Find gallium format for the Mesa texture */
    firstImageFormat =
       st_mesa_format_to_pipe_format(st, firstImage->base.TexFormat);

src/mesa/state_tracker/st_manager.c

@@ -48,6 +48,7 @@
 #include "st_cb_fbo.h"
 #include "st_cb_flush.h"
 #include "st_manager.h"
+#include "st_sampler_view.h"
 
 #include "state_tracker/st_gl_api.h"
 
@@ -734,6 +735,8 @@ st_context_teximage(struct st_context_iface *stctxi,
       width = height = depth = 0;
    }
 
+   pipe_resource_reference(&stObj->pt, tex);
+   st_texture_release_all_sampler_views(st, stObj);
    pipe_resource_reference(&stImage->pt, tex);
    stObj->surface_format = pipe_format;