From e80921f29dded10835df842ad0d9a4d437b51965 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Wed, 22 Nov 2017 21:00:42 +0000
Subject: [PATCH] Fix Voodoo caching of textures ending at the exact end of
 texture memory. Fixes FMV in Return to Castle Wolfenstein.

---
 src/vid_voodoo.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/vid_voodoo.c b/src/vid_voodoo.c
index 73c6824..319170c 100644
--- a/src/vid_voodoo.c
+++ b/src/vid_voodoo.c
@@ -1628,7 +1628,12 @@ static void flush_texture_cache(voodoo_t *voodoo, uint32_t dirty_addr, int tmu)
                                 
                                 if (addr_end != 0)
                                 {
-                                        if (dirty_addr >= (addr_start & voodoo->texture_mask & ~0x3ff) && dirty_addr < (((addr_end & voodoo->texture_mask) + 0x3ff) & ~0x3ff))
+                                        int addr_start_masked = addr_start & voodoo->texture_mask & ~0x3ff;
+                                        int addr_end_masked = ((addr_end & voodoo->texture_mask) + 0x3ff) & ~0x3ff;
+                                        
+                                        if (addr_end_masked < addr_start_masked)
+                                                addr_end_masked = voodoo->texture_mask+1;
+                                        if (dirty_addr >= addr_start_masked && dirty_addr < addr_end_masked)
                                         {
 //                                pclog("  Evict texture %i %08x\n", c, voodoo->texture_cache[tmu][c].base);