st/mesa: Allow zero as [level|layer]_override

This fix two dEQP tests for virgl:

dEQP-EGL.functional.image.create.gles2_cubemap_positive_x_rgba_texture
dEQP-EGL.functional.image.render_multiple_contexts.gles2_cubemap_positive_x_rgba8_texture

Signed-off-by: Lepton Wu <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 4 insertions, 4 deletions

diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h
index c5fc30cec5d..1fc36631c2e 100644
--- a/src/mesa/state_tracker/st_texture.h
+++ b/src/mesa/state_tracker/st_texture.h
@@ -164,15 +164,15 @@ struct st_texture_object
     */
    enum pipe_format surface_format;
 
-   /* When non-zero, samplers should use this level instead of the level
+   /* When non-negative, samplers should use this level instead of the level
     * range specified by the GL state.
     *
     * This is used for EGL images, which may correspond to a single level out
     * of an imported pipe_resources with multiple mip levels.
     */
-   uint level_override;
+   int level_override;
 
-   /* When non-zero, samplers should use this layer instead of the one
+   /* When non-negative, samplers should use this layer instead of the one
     * specified by the GL state.
     *
     * This is used for EGL images and VDPAU interop, where imported
@@ -180,7 +180,7 @@ struct st_texture_object
     * with different fields in the case of VDPAU) even though the GL state
     * describes one non-array texture per field.
     */
-   uint layer_override;
+   int layer_override;
 
     /**
      * Set when the texture images of this texture object might not all be in