From d1e6ee9cd7c5d5cc89136a89440327274b64eec2 Mon Sep 17 00:00:00 2001
From: Flyinghead <raphael.jean@gmail.com>
Date: Thu, 2 Feb 2023 20:19:52 +0100
Subject: [PATCH] pvr: add a dummy sorted triangle if list is empty

this signals that sorted triangles are being used otherwise wrong
indexes values lead to a crash
---
 core/hw/pvr/ta_util.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/hw/pvr/ta_util.cpp b/core/hw/pvr/ta_util.cpp
index 628b6845c..ec146b6af 100644
--- a/core/hw/pvr/ta_util.cpp
+++ b/core/hw/pvr/ta_util.cpp
@@ -179,6 +179,11 @@ void sortTriangles(rend_context& ctx, RenderPass& pass, const RenderPass& previo
 		SortedTriangle& last = ctx.sortedTriangles.back();
 		last.count = idxSize + triangleList.size() * 3 - last.first;
 	}
+	else
+	{
+		// Add a dummy one to signal we're using sorted triangles
+		ctx.sortedTriangles.push_back({ pp_base, 0, 0});
+	}
 	pass.sorted_tr_count = ctx.sortedTriangles.size();
 
 #if PRINT_SORT_STATS