Import code from previous AssetBuilder version

thirdparty/libsquish/colourblock.h

@@ -0,0 +1,41 @@
+/* -----------------------------------------------------------------------------
+
+    Copyright (c) 2006 Simon Brown                          si@sjbrown.co.uk
+
+    Permission is hereby granted, free of charge, to any person obtaining
+    a copy of this software and associated documentation files (the
+    "Software"), to deal in the Software without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Software, and to
+    permit persons to whom the Software is furnished to do so, subject to
+    the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+   -------------------------------------------------------------------------- */
+
+#ifndef SQUISH_COLOURBLOCK_H
+#define SQUISH_COLOURBLOCK_H
+
+#include "squish.h"
+#include "maths.h"
+
+namespace squish {
+
+void WriteColourBlock3( Vec3::Arg start, Vec3::Arg end, u8 const* indices, void* block );
+void WriteColourBlock4( Vec3::Arg start, Vec3::Arg end, u8 const* indices, void* block );
+
+void DecompressColour( u8* rgba, void const* block, bool isDxt1 );
+
+} // namespace squish
+
+#endif // ndef SQUISH_COLOURBLOCK_H