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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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diff --git a/media/libyuv/source/compare_neon.cc b/media/libyuv/source/compare_neon.cc
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+/*
+ * Copyright 2012 The LibYuv Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "libyuv/basic_types.h"
+
+#include "libyuv/compare_row.h"
+#include "libyuv/row.h"
+
+#ifdef __cplusplus
+namespace libyuv {
+extern "C" {
+#endif
+
+#if !defined(LIBYUV_DISABLE_NEON) && defined(__ARM_NEON__) && \
+ !defined(__aarch64__)
+
+uint32 SumSquareError_NEON(const uint8* src_a, const uint8* src_b, int count) {
+ volatile uint32 sse;
+ asm volatile (
+ "vmov.u8 q8, #0 \n"
+ "vmov.u8 q10, #0 \n"
+ "vmov.u8 q9, #0 \n"
+ "vmov.u8 q11, #0 \n"
+
+ "1: \n"
+ MEMACCESS(0)
+ "vld1.8 {q0}, [%0]! \n"
+ MEMACCESS(1)
+ "vld1.8 {q1}, [%1]! \n"
+ "subs %2, %2, #16 \n"
+ "vsubl.u8 q2, d0, d2 \n"
+ "vsubl.u8 q3, d1, d3 \n"
+ "vmlal.s16 q8, d4, d4 \n"
+ "vmlal.s16 q9, d6, d6 \n"
+ "vmlal.s16 q10, d5, d5 \n"
+ "vmlal.s16 q11, d7, d7 \n"
+ "bgt 1b \n"
+
+ "vadd.u32 q8, q8, q9 \n"
+ "vadd.u32 q10, q10, q11 \n"
+ "vadd.u32 q11, q8, q10 \n"
+ "vpaddl.u32 q1, q11 \n"
+ "vadd.u64 d0, d2, d3 \n"
+ "vmov.32 %3, d0[0] \n"
+ : "+r"(src_a),
+ "+r"(src_b),
+ "+r"(count),
+ "=r"(sse)
+ :
+ : "memory", "cc", "q0", "q1", "q2", "q3", "q8", "q9", "q10", "q11");
+ return sse;
+}
+
+#endif // defined(__ARM_NEON__) && !defined(__aarch64__)
+
+#ifdef __cplusplus
+} // extern "C"
+} // namespace libyuv
+#endif