mesa: add comment that GL_CLIP_DISTANCE0 == GL_CLIP_PLANE0 in enable.c

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

diff --git a/src/mesa/main/enable.c b/src/mesa/main/enable.c
index 0f3bcf0a9e2ed204a22514a9bd9f6fa1c2f0da43..417548a3cb8937ed8570b698b8cf875d17f85524 100644 (file)
--- a/src/mesa/main/enable.c
+++ b/src/mesa/main/enable.c
@@ -313,7 +313,7 @@ _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
             }
          }
          break;
-      case GL_CLIP_DISTANCE0:
+      case GL_CLIP_DISTANCE0: /* aka GL_CLIP_PLANE0 */
       case GL_CLIP_DISTANCE1:
       case GL_CLIP_DISTANCE2:
       case GL_CLIP_DISTANCE3:
@@ -1202,7 +1202,7 @@ _mesa_IsEnabled( GLenum cap )
         return ctx->Eval.AutoNormal;
       case GL_BLEND:
          return ctx->Color.BlendEnabled & 1;  /* return state for buffer[0] */
-      case GL_CLIP_DISTANCE0:
+      case GL_CLIP_DISTANCE0: /* aka GL_CLIP_PLANE0 */
       case GL_CLIP_DISTANCE1:
       case GL_CLIP_DISTANCE2:
       case GL_CLIP_DISTANCE3: