1 files changed, 64 insertions, 0 deletions
diff --git a/dnn/arm/dnn_arm.h b/dnn/arm/dnn_arm.h
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+++ b/dnn/arm/dnn_arm.h
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+/* Copyright (c) 2011-2019 Mozilla
+                 2023 Amazon */
+/*
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   - Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+
+   - Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef DNN_ARM_H
+#define DNN_ARM_H
+
+#include "cpu_support.h"
+#include "opus_types.h"
+
+void compute_linear_dotprod(const LinearLayer *linear, float *out, const float *in);
+void compute_linear_neon(const LinearLayer *linear, float *out, const float *in);
+
+
+#if defined(OPUS_ARM_PRESUME_DOTPROD)
+
+#define OVERRIDE_COMPUTE_LINEAR
+#define compute_linear(linear, out, in, arch) ((void)(arch),compute_linear_dotprod(linear, out, in))
+
+#elif defined(OPUS_ARM_PRESUME_NEON_INTR) && !defined(OPUS_ARM_MAY_HAVE_DOTPROD)
+
+#define OVERRIDE_COMPUTE_LINEAR
+#define compute_linear(linear, out, in, arch) ((void)(arch),compute_linear_neon(linear, out, in))
+
+#elif defined(OPUS_HAVE_RTCD) && (defined(OPUS_ARM_MAY_HAVE_DOTPROD) || defined(OPUS_ARM_MAY_HAVE_NEON))
+
+extern void (*const DNN_COMPUTE_LINEAR_IMPL[OPUS_ARCHMASK + 1])(
+                    const LinearLayer *linear,
+                    float *out,
+                    const float *in
+                    );
+#define OVERRIDE_COMPUTE_LINEAR
+#define compute_linear(linear, out, in, arch) \
+    ((*DNN_COMPUTE_LINEAR_IMPL[(arch) & OPUS_ARCHMASK])(linear, out, in))
+
+
+#endif
+
+
+
+#endif /* DNN_ARM_H */