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diff --git a/thirdparty/basis_universal/basisu_astc_decomp.h b/thirdparty/basis_universal/basisu_astc_decomp.h
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+++ b/thirdparty/basis_universal/basisu_astc_decomp.h
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+#ifndef _TCUASTCUTIL_HPP
+#define _TCUASTCUTIL_HPP
+/*-------------------------------------------------------------------------
+ * drawElements Quality Program Tester Core
+ * ----------------------------------------
+ *
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ *//*!
+ * \file
+ * \brief ASTC Utilities.
+ *//*--------------------------------------------------------------------*/
+
+#include "transcoder/basisu.h" // to pick up the iterator debug level madness
+#include <vector>
+#include <stdint.h>
+
+namespace basisu_astc
+{
+namespace astc
+{
+
+// Unpacks a single ASTC block to pDst
+// If isSRGB is true, the spec requires the decoder to scale the LDR 8-bit endpoints to 16-bit before interpolation slightly differently, 
+// which will lead to different outputs. So be sure to set it correctly (ideally it should match whatever the encoder did).
+bool decompress(uint8_t* pDst, const uint8_t* data, bool isSRGB, int blockWidth, int blockHeight);
+
+} // astc
+} // basisu
+
+#endif