1 files changed, 38 insertions, 0 deletions
diff --git a/gst/goom/v3d.c b/gst/goom/v3d.c
new file mode 100644
index 0000000..f37141e
--- /dev/null
+++ b/gst/goom/v3d.c
@@ -0,0 +1,38 @@
+/* Goom Project
+ * Copyright (C) <2003> iOS-Software
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+#include "v3d.h"
+
+void
+v3d_to_v2d (v3d * v3, int nbvertex, int width, int height, float distance,
+    v2d * v2)
+{
+  int i;
+
+  for (i = 0; i < nbvertex; ++i) {
+    if (v3[i].z > 2) {
+      int Xp, Yp;
+
+      F2I ((distance * v3[i].x / v3[i].z), Xp);
+      F2I ((distance * v3[i].y / v3[i].z), Yp);
+      v2[i].x = Xp + (width >> 1);
+      v2[i].y = -Yp + (height >> 1);
+    } else
+      v2[i].x = v2[i].y = -666;
+  }
+}