--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/arch/simddetect.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,99 @@
+///////////////////////////////////////////////////////////////////////
+// File:        simddetect.h
+// Description: Architecture detector.
+// Author:      Stefan Weil (based on code from Ray Smith)
+//
+// (C) Copyright 2014, Google Inc.
+// 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.
+///////////////////////////////////////////////////////////////////////
+#ifndef TESSERACT_ARCH_SIMDDETECT_H_
+#define TESSERACT_ARCH_SIMDDETECT_H_
+
+#include <tesseract/export.h>
+#include "tesstypes.h"
+
+namespace tesseract {
+
+// Function pointer for best calculation of dot product.
+using DotProductFunction = TFloat (*)(const TFloat *, const TFloat *, int);
+extern DotProductFunction DotProduct;
+
+// Architecture detector. Add code here to detect any other architectures for
+// SIMD-based faster dot product functions. Intended to be a single static
+// object, but it does no real harm to have more than one.
+class SIMDDetect {
+public:
+  // Returns true if AVX is available on this system.
+  static inline bool IsAVXAvailable() {
+    return detector.avx_available_;
+  }
+  // Returns true if AVX2 (integer support) is available on this system.
+  static inline bool IsAVX2Available() {
+    return detector.avx2_available_;
+  }
+  // Returns true if AVX512 Foundation (float) is available on this system.
+  static inline bool IsAVX512FAvailable() {
+    return detector.avx512F_available_;
+  }
+  // Returns true if AVX512 integer is available on this system.
+  static inline bool IsAVX512BWAvailable() {
+    return detector.avx512BW_available_;
+  }
+  // Returns true if AVX512 Vector Neural Network Instructions are available.
+  static inline bool IsAVX512VNNIAvailable() {
+    return detector.avx512VNNI_available_;
+  }
+  // Returns true if FMA is available on this system.
+  static inline bool IsFMAAvailable() {
+    return detector.fma_available_;
+  }
+  // Returns true if SSE4.1 is available on this system.
+  static inline bool IsSSEAvailable() {
+    return detector.sse_available_;
+  }
+  // Returns true if NEON is available on this system.
+  static inline bool IsNEONAvailable() {
+    return detector.neon_available_;
+  }
+  // Returns true if RVV is available on this system.
+  static inline bool IsRVVAvailable() {
+    return detector.rvv_available_;
+  }
+
+  // Update settings after config variable was set.
+  static TESS_API void Update();
+
+private:
+  // Constructor, must set all static member variables.
+  SIMDDetect();
+
+private:
+  // Singleton.
+  static SIMDDetect detector;
+  // If true, then AVX has been detected.
+  static TESS_API bool avx_available_;
+  static TESS_API bool avx2_available_;
+  static TESS_API bool avx512F_available_;
+  static TESS_API bool avx512BW_available_;
+  static TESS_API bool avx512VNNI_available_;
+  // If true, then FMA has been detected.
+  static TESS_API bool fma_available_;
+  // If true, then SSe4.1 has been detected.
+  static TESS_API bool sse_available_;
+  // If true, then NEON has been detected.
+  static TESS_API bool neon_available_;
+  // If true, then RVV has been detected.
+  static TESS_API bool rvv_available_;
+};
+
+} // namespace tesseract
+
+#endif // TESSERACT_ARCH_SIMDDETECT_H_