gltrace: Return sensible value for GL_MAX_DEBUG_MESSAGE_LENGTH when faking KHR_debug.

`apitrace trace glretrace ...` relies on it.

1 files changed, 5 insertions, 0 deletions

diff --git a/wrappers/glcaps.cpp b/wrappers/glcaps.cpp
index e680fdd9..7e5f9850 100644
--- a/wrappers/glcaps.cpp
+++ b/wrappers/glcaps.cpp
@@ -268,6 +268,11 @@ _glGetIntegerv_override(GLenum pname, GLint *params)
                 params[0] = 256;
             }
             break;
+        case GL_MAX_DEBUG_MESSAGE_LENGTH:
+            if (params[0] == 0) {
+                params[0] = 4096;
+            }
+            break;
         }
     }
 }