From b74c0abd8d32b815a095cc5c2068f3ae88b37206 Mon Sep 17 00:00:00 2001
From: hendricks266 <hendricks266@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Tue, 25 Oct 2016 05:43:50 +0000
Subject: [PATCH] Engine: Add vox_undefine().

git-svn-id: https://svn.eduke32.com/eduke32@5914 1a8010ca-5511-0410-912e-c29ae57300e0
---
 polymer/eduke32/build/include/build.h |  1 +
 polymer/eduke32/build/src/engine.c    | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/polymer/eduke32/build/include/build.h b/polymer/eduke32/build/include/build.h
index 0ff128706..34e4da750 100644
--- a/polymer/eduke32/build/include/build.h
+++ b/polymer/eduke32/build/include/build.h
@@ -1029,6 +1029,7 @@ void E_LoadTileIntoBuffer(int16_t tilenume, int32_t dasiz, char *buffer);
 void E_RenderArtDataIntoBuffer(palette_t * pic, uint8_t const * buf, int32_t bufsizx, int32_t sizx, int32_t sizy);
 
 int32_t   qloadkvx(int32_t voxindex, const char *filename);
+void vox_undefine(int32_t const);
 intptr_t   allocatepermanenttile(int16_t tilenume, int32_t xsiz, int32_t ysiz);
 void   copytilepiece(int32_t tilenume1, int32_t sx1, int32_t sy1, int32_t xsiz, int32_t ysiz, int32_t tilenume2, int32_t sx2, int32_t sy2);
 void   makepalookup(int32_t palnum, const char *remapbuf, uint8_t r, uint8_t g, uint8_t b, char noFloorPal);
diff --git a/polymer/eduke32/build/src/engine.c b/polymer/eduke32/build/src/engine.c
index 30a0f0075..4ca105620 100644
--- a/polymer/eduke32/build/src/engine.c
+++ b/polymer/eduke32/build/src/engine.c
@@ -9991,6 +9991,33 @@ int32_t qloadkvx(int32_t voxindex, const char *filename)
     return 0;
 }
 
+void vox_undefine(int32_t const tile)
+{
+    ssize_t voxindex = tiletovox[tile];
+    if (voxindex < 0)
+        return;
+
+#ifdef USE_OPENGL
+    if (voxmodels[voxindex])
+    {
+        voxfree(voxmodels[voxindex]);
+        voxmodels[voxindex] = NULL;
+    }
+    DO_FREE_AND_NULL(voxfilenames[voxindex]);
+#endif
+
+    for (ssize_t j = 0; j < MAXVOXMIPS; ++j)
+    {
+        // CACHE1D_FREE
+        voxlock[voxindex][j] = 1;
+        voxoff[voxindex][j] = 0;
+    }
+    voxscale[voxindex] = 65536;
+    tiletovox[tile] = -1;
+
+    // TODO: nextvoxid
+}
+
 //
 // inside
 //