mesa: issue warning for out of bounds array indexes

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 27049486ee9..d5c604c56a2 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -184,6 +184,8 @@ _mesa_validate_DrawElements(GLcontext *ctx,
                                     ctx->Array.ElementArrayBufferObj);
       if (max >= ctx->Array._MaxElement) {
          /* the max element is out of bounds of one or more enabled arrays */
+         _mesa_warning(ctx, "glDrawElements() index=%u is "
+                       "out of bounds (max=%u)", max, ctx->Array._MaxElement);
          return GL_FALSE;
       }
    }