Show a panic alert if the CP matrix indices don't match the XF matrix indices

This almost certainly never happens, but if it does we want to know.

1 files changed, 12 insertions, 0 deletions

diff --git a/Source/Core/VideoCommon/VertexLoaderManager.cpp b/Source/Core/VideoCommon/VertexLoaderManager.cpp
index eea5183a81..f3fc4d9e7e 100644
--- a/Source/Core/VideoCommon/VertexLoaderManager.cpp
+++ b/Source/Core/VideoCommon/VertexLoaderManager.cpp
@@ -321,6 +321,18 @@ static void CheckCPConfiguration(int vtx_attr_group)
     // Don't bail out, though; we can still render something successfully
     // (real hardware seems to hang in this case, though)
   }
+
+  if (g_main_cp_state.matrix_index_a.Hex != xfmem.MatrixIndexA.Hex ||
+      g_main_cp_state.matrix_index_b.Hex != xfmem.MatrixIndexB.Hex)
+  {
+    PanicAlertFmt("Mismatched matrix index configuration between CP and XF stages - "
+                  "index A: {:08x}/{:08x}, index B {:08x}/{:08x}. "
+                  "Please report on the issue tracker.",
+                  g_main_cp_state.matrix_index_a.Hex, xfmem.MatrixIndexA.Hex,
+                  g_main_cp_state.matrix_index_b.Hex, xfmem.MatrixIndexB.Hex);
+    DolphinAnalytics::Instance().ReportGameQuirk(
+        GameQuirk::MISMATCHED_GPU_MATRIX_INDICES_BETWEEN_CP_AND_XF);
+  }
 }
 
 int RunVertices(int vtx_attr_group, OpcodeDecoder::Primitive primitive, int count, DataReader src,