mesa: return the correct value for GroupStackDepth

We already have one group (the default) as specified in the spec. So
lets return its size, rather than the index of the current group.

Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Timothy Arceri <[email protected]>
(cherry picked from commit 078dd6a0b4135b5181eea538473fe53a9bc61223)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/main/errors.c b/src/mesa/main/errors.c
index 88fc0283ed4..fda5a90bf5e 100644
--- a/src/mesa/main/errors.c
+++ b/src/mesa/main/errors.c
@@ -775,7 +775,7 @@ _mesa_get_debug_state_int(struct gl_context *ctx, GLenum pname)
          debug->Log.Messages[debug->Log.NextMessage].length : 0;
       break;
    case GL_DEBUG_GROUP_STACK_DEPTH:
-      val = debug->CurrentGroup;
+      val = debug->CurrentGroup + 1;
       break;
    default:
       assert(!"unknown debug output param");