From 804789d73ee66857216f1e32c74c80dd65ef587f Mon Sep 17 00:00:00 2001
From: notaz
Date: Sun, 6 Jan 2013 03:55:09 +0200
Subject: gpus: handle list underflows better

---
 plugins/gpu_unai/gpulib_if.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'plugins/gpu_unai')

diff --git a/plugins/gpu_unai/gpulib_if.cpp b/plugins/gpu_unai/gpulib_if.cpp
index de16721..0d506bc 100644
--- a/plugins/gpu_unai/gpulib_if.cpp
+++ b/plugins/gpu_unai/gpulib_if.cpp
@@ -307,7 +307,11 @@ int do_cmd_list(unsigned int *list, int list_len, int *last_cmd)
           gpuDrawLF(gpuPixelDrivers [ (Blending_Mode | Masking | Blending | (PixelMSB>>3)) >> 1]);
 
           num_vertexes++;
-          if((*list_position & 0xf000f000) == 0x50005000 || list_position >= list_end)
+          if(list_position >= list_end) {
+            cmd = -1;
+            goto breakloop;
+          }
+          if((*list_position & 0xf000f000) == 0x50005000)
             break;
         }
 
@@ -338,7 +342,11 @@ int do_cmd_list(unsigned int *list, int list_len, int *last_cmd)
           gpuDrawLG(gpuPixelDrivers [ (Blending_Mode | Masking | Blending | (PixelMSB>>3)) >> 1]);
 
           num_vertexes++;
-          if((*list_position & 0xf000f000) == 0x50005000 || list_position >= list_end)
+          if(list_position >= list_end) {
+            cmd = -1;
+            goto breakloop;
+          }
+          if((*list_position & 0xf000f000) == 0x50005000)
             break;
         }
 
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