# --- T2-COPYRIGHT-BEGIN ---
# t2/package/*/xf86-video-rendition/03-rop-table.patch
# Copyright (C) 2026 The T2 SDE Project
# SPDX-License-Identifier: GPL-2.0 or patched project license
# --- T2-COPYRIGHT-END ---

--- a/src/accelX.c	2026-07-12 13:25:39.916000718 +0200
+++ b/src/accelX.c	2026-07-12 13:25:53.292968887 +0200
@@ -108,16 +108,17 @@
  * global data
  */
 
-static int Rop2Rop[]={ 
+/* X calls the source "reverse" and the destination "inverted": GXandReverse is
+   S & ~D, GXandInverted is ~S & D.  cmd2d.h names the operands explicitly, so
+   ROP_AND_SND is S & ~D and ROP_AND_NSD is ~S & D. */
+static int Rop2Rop[]={
     ROP_ALLBITS0, ROP_AND_SD, ROP_AND_SND,  ROP_S,
  /* GXclear,      GXand,      GXandReverse, GXcopy, */
     ROP_AND_NSD,   ROP_D,  ROP_XOR_SD, ROP_OR_SD,
  /* GXandInverted, GXnoop, GXxor,      GXor,  */
-    ROP_NOR_SD, ROP_S,   ROP_NOT_D, ROP_NOT_S,   
- /* suppose I have some problems understanding what invert and revers means <ml>
-    ROP_NOR_SD, ROP_S,   ROP_NOT_S, ROP_NOT_D,   */
- /* GXnor,      GXequiv, GXinvert,  GXorReverse, */
-    ROP_NOT_S,      ROP_XNOR_SD,  ROP_NAND_SD, ROP_ALLBITS1 };
+    ROP_NOR_SD, ROP_XNOR_SD, ROP_NOT_D, ROP_OR_SND,
+ /* GXnor,      GXequiv,     GXinvert,  GXorReverse, */
+    ROP_NOT_S,      ROP_OR_NSD,   ROP_NAND_SD, ROP_ALLBITS1 };
  /* GXcopyInverted, GXorInverted, GXnand,      GXset */