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-rw-r--r--media/libvpx/vpx_dsp/arm/sad_neon.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/media/libvpx/vpx_dsp/arm/sad_neon.c b/media/libvpx/vpx_dsp/arm/sad_neon.c
new file mode 100644
index 000000000..173f08ac3
--- /dev/null
+++ b/media/libvpx/vpx_dsp/arm/sad_neon.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2014 The WebM 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 <arm_neon.h>
+
+#include "./vpx_config.h"
+
+#include "vpx/vpx_integer.h"
+
+unsigned int vpx_sad8x16_neon(
+ unsigned char *src_ptr,
+ int src_stride,
+ unsigned char *ref_ptr,
+ int ref_stride) {
+ uint8x8_t d0, d8;
+ uint16x8_t q12;
+ uint32x4_t q1;
+ uint64x2_t q3;
+ uint32x2_t d5;
+ int i;
+
+ d0 = vld1_u8(src_ptr);
+ src_ptr += src_stride;
+ d8 = vld1_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ q12 = vabdl_u8(d0, d8);
+
+ for (i = 0; i < 15; i++) {
+ d0 = vld1_u8(src_ptr);
+ src_ptr += src_stride;
+ d8 = vld1_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ q12 = vabal_u8(q12, d0, d8);
+ }
+
+ q1 = vpaddlq_u16(q12);
+ q3 = vpaddlq_u32(q1);
+ d5 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(q3)),
+ vreinterpret_u32_u64(vget_high_u64(q3)));
+
+ return vget_lane_u32(d5, 0);
+}
+
+unsigned int vpx_sad4x4_neon(
+ unsigned char *src_ptr,
+ int src_stride,
+ unsigned char *ref_ptr,
+ int ref_stride) {
+ uint8x8_t d0, d8;
+ uint16x8_t q12;
+ uint32x2_t d1;
+ uint64x1_t d3;
+ int i;
+
+ d0 = vld1_u8(src_ptr);
+ src_ptr += src_stride;
+ d8 = vld1_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ q12 = vabdl_u8(d0, d8);
+
+ for (i = 0; i < 3; i++) {
+ d0 = vld1_u8(src_ptr);
+ src_ptr += src_stride;
+ d8 = vld1_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ q12 = vabal_u8(q12, d0, d8);
+ }
+
+ d1 = vpaddl_u16(vget_low_u16(q12));
+ d3 = vpaddl_u32(d1);
+
+ return vget_lane_u32(vreinterpret_u32_u64(d3), 0);
+}
+
+unsigned int vpx_sad16x8_neon(
+ unsigned char *src_ptr,
+ int src_stride,
+ unsigned char *ref_ptr,
+ int ref_stride) {
+ uint8x16_t q0, q4;
+ uint16x8_t q12, q13;
+ uint32x4_t q1;
+ uint64x2_t q3;
+ uint32x2_t d5;
+ int i;
+
+ q0 = vld1q_u8(src_ptr);
+ src_ptr += src_stride;
+ q4 = vld1q_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ q12 = vabdl_u8(vget_low_u8(q0), vget_low_u8(q4));
+ q13 = vabdl_u8(vget_high_u8(q0), vget_high_u8(q4));
+
+ for (i = 0; i < 7; i++) {
+ q0 = vld1q_u8(src_ptr);
+ src_ptr += src_stride;
+ q4 = vld1q_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ q12 = vabal_u8(q12, vget_low_u8(q0), vget_low_u8(q4));
+ q13 = vabal_u8(q13, vget_high_u8(q0), vget_high_u8(q4));
+ }
+
+ q12 = vaddq_u16(q12, q13);
+ q1 = vpaddlq_u16(q12);
+ q3 = vpaddlq_u32(q1);
+ d5 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(q3)),
+ vreinterpret_u32_u64(vget_high_u64(q3)));
+
+ return vget_lane_u32(d5, 0);
+}
+
+static INLINE unsigned int horizontal_long_add_16x8(const uint16x8_t vec_lo,
+ const uint16x8_t vec_hi) {
+ const uint32x4_t vec_l_lo = vaddl_u16(vget_low_u16(vec_lo),
+ vget_high_u16(vec_lo));
+ const uint32x4_t vec_l_hi = vaddl_u16(vget_low_u16(vec_hi),
+ vget_high_u16(vec_hi));
+ const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi);
+ const uint64x2_t b = vpaddlq_u32(a);
+ const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
+ vreinterpret_u32_u64(vget_high_u64(b)));
+ return vget_lane_u32(c, 0);
+}
+static INLINE unsigned int horizontal_add_16x8(const uint16x8_t vec_16x8) {
+ const uint32x4_t a = vpaddlq_u16(vec_16x8);
+ const uint64x2_t b = vpaddlq_u32(a);
+ const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)),
+ vreinterpret_u32_u64(vget_high_u64(b)));
+ return vget_lane_u32(c, 0);
+}
+
+unsigned int vpx_sad64x64_neon(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride) {
+ int i;
+ uint16x8_t vec_accum_lo = vdupq_n_u16(0);
+ uint16x8_t vec_accum_hi = vdupq_n_u16(0);
+ for (i = 0; i < 64; ++i) {
+ const uint8x16_t vec_src_00 = vld1q_u8(src);
+ const uint8x16_t vec_src_16 = vld1q_u8(src + 16);
+ const uint8x16_t vec_src_32 = vld1q_u8(src + 32);
+ const uint8x16_t vec_src_48 = vld1q_u8(src + 48);
+ const uint8x16_t vec_ref_00 = vld1q_u8(ref);
+ const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16);
+ const uint8x16_t vec_ref_32 = vld1q_u8(ref + 32);
+ const uint8x16_t vec_ref_48 = vld1q_u8(ref + 48);
+ src += src_stride;
+ ref += ref_stride;
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00),
+ vget_low_u8(vec_ref_00));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00),
+ vget_high_u8(vec_ref_00));
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16),
+ vget_low_u8(vec_ref_16));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16),
+ vget_high_u8(vec_ref_16));
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_32),
+ vget_low_u8(vec_ref_32));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_32),
+ vget_high_u8(vec_ref_32));
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_48),
+ vget_low_u8(vec_ref_48));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_48),
+ vget_high_u8(vec_ref_48));
+ }
+ return horizontal_long_add_16x8(vec_accum_lo, vec_accum_hi);
+}
+
+unsigned int vpx_sad32x32_neon(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride) {
+ int i;
+ uint16x8_t vec_accum_lo = vdupq_n_u16(0);
+ uint16x8_t vec_accum_hi = vdupq_n_u16(0);
+
+ for (i = 0; i < 32; ++i) {
+ const uint8x16_t vec_src_00 = vld1q_u8(src);
+ const uint8x16_t vec_src_16 = vld1q_u8(src + 16);
+ const uint8x16_t vec_ref_00 = vld1q_u8(ref);
+ const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16);
+ src += src_stride;
+ ref += ref_stride;
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00),
+ vget_low_u8(vec_ref_00));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00),
+ vget_high_u8(vec_ref_00));
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16),
+ vget_low_u8(vec_ref_16));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16),
+ vget_high_u8(vec_ref_16));
+ }
+ return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi));
+}
+
+unsigned int vpx_sad16x16_neon(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride) {
+ int i;
+ uint16x8_t vec_accum_lo = vdupq_n_u16(0);
+ uint16x8_t vec_accum_hi = vdupq_n_u16(0);
+
+ for (i = 0; i < 16; ++i) {
+ const uint8x16_t vec_src = vld1q_u8(src);
+ const uint8x16_t vec_ref = vld1q_u8(ref);
+ src += src_stride;
+ ref += ref_stride;
+ vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src),
+ vget_low_u8(vec_ref));
+ vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src),
+ vget_high_u8(vec_ref));
+ }
+ return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi));
+}
+
+unsigned int vpx_sad8x8_neon(const uint8_t *src, int src_stride,
+ const uint8_t *ref, int ref_stride) {
+ int i;
+ uint16x8_t vec_accum = vdupq_n_u16(0);
+
+ for (i = 0; i < 8; ++i) {
+ const uint8x8_t vec_src = vld1_u8(src);
+ const uint8x8_t vec_ref = vld1_u8(ref);
+ src += src_stride;
+ ref += ref_stride;
+ vec_accum = vabal_u8(vec_accum, vec_src, vec_ref);
+ }
+ return horizontal_add_16x8(vec_accum);
+}