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-rw-r--r--media/libvpx/libvpx/vpx_dsp/arm/variance_neon_dotprod.c298
1 files changed, 298 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/arm/variance_neon_dotprod.c b/media/libvpx/libvpx/vpx_dsp/arm/variance_neon_dotprod.c
new file mode 100644
index 0000000000..ab843e9fca
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_dsp/arm/variance_neon_dotprod.c
@@ -0,0 +1,298 @@
+/*
+ * Copyright (c) 2021 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 <assert.h>
+
+#include "./vpx_dsp_rtcd.h"
+#include "./vpx_config.h"
+
+#include "vpx/vpx_integer.h"
+#include "vpx_dsp/arm/mem_neon.h"
+#include "vpx_dsp/arm/sum_neon.h"
+#include "vpx_ports/mem.h"
+
+// Process a block of width 4 four rows at a time.
+static INLINE void variance_4xh_neon_dotprod(const uint8_t *src_ptr,
+ int src_stride,
+ const uint8_t *ref_ptr,
+ int ref_stride, int h,
+ uint32_t *sse, int *sum) {
+ uint32x4_t src_sum = vdupq_n_u32(0);
+ uint32x4_t ref_sum = vdupq_n_u32(0);
+ uint32x4_t sse_u32 = vdupq_n_u32(0);
+
+ int i = h;
+ do {
+ const uint8x16_t s = load_unaligned_u8q(src_ptr, src_stride);
+ const uint8x16_t r = load_unaligned_u8q(ref_ptr, ref_stride);
+
+ const uint8x16_t abs_diff = vabdq_u8(s, r);
+ sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff);
+
+ src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1));
+ ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1));
+
+ src_ptr += 4 * src_stride;
+ ref_ptr += 4 * ref_stride;
+ i -= 4;
+ } while (i != 0);
+
+ *sum = horizontal_add_int32x4(
+ vreinterpretq_s32_u32(vsubq_u32(src_sum, ref_sum)));
+ *sse = horizontal_add_uint32x4(sse_u32);
+}
+
+// Process a block of width 8 two rows at a time.
+static INLINE void variance_8xh_neon_dotprod(const uint8_t *src_ptr,
+ int src_stride,
+ const uint8_t *ref_ptr,
+ int ref_stride, int h,
+ uint32_t *sse, int *sum) {
+ uint32x4_t src_sum = vdupq_n_u32(0);
+ uint32x4_t ref_sum = vdupq_n_u32(0);
+ uint32x4_t sse_u32 = vdupq_n_u32(0);
+
+ int i = h;
+ do {
+ const uint8x16_t s =
+ vcombine_u8(vld1_u8(src_ptr), vld1_u8(src_ptr + src_stride));
+ const uint8x16_t r =
+ vcombine_u8(vld1_u8(ref_ptr), vld1_u8(ref_ptr + ref_stride));
+
+ const uint8x16_t abs_diff = vabdq_u8(s, r);
+ sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff);
+
+ src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1));
+ ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1));
+
+ src_ptr += 2 * src_stride;
+ ref_ptr += 2 * ref_stride;
+ i -= 2;
+ } while (i != 0);
+
+ *sum = horizontal_add_int32x4(
+ vreinterpretq_s32_u32(vsubq_u32(src_sum, ref_sum)));
+ *sse = horizontal_add_uint32x4(sse_u32);
+}
+
+// Process a block of width 16 one row at a time.
+static INLINE void variance_16xh_neon_dotprod(const uint8_t *src_ptr,
+ int src_stride,
+ const uint8_t *ref_ptr,
+ int ref_stride, int h,
+ uint32_t *sse, int *sum) {
+ uint32x4_t src_sum = vdupq_n_u32(0);
+ uint32x4_t ref_sum = vdupq_n_u32(0);
+ uint32x4_t sse_u32 = vdupq_n_u32(0);
+
+ int i = h;
+ do {
+ const uint8x16_t s = vld1q_u8(src_ptr);
+ const uint8x16_t r = vld1q_u8(ref_ptr);
+
+ const uint8x16_t abs_diff = vabdq_u8(s, r);
+ sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff);
+
+ src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1));
+ ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1));
+
+ src_ptr += src_stride;
+ ref_ptr += ref_stride;
+ } while (--i != 0);
+
+ *sum = horizontal_add_int32x4(
+ vreinterpretq_s32_u32(vsubq_u32(src_sum, ref_sum)));
+ *sse = horizontal_add_uint32x4(sse_u32);
+}
+
+// Process a block of any size where the width is divisible by 16.
+static INLINE void variance_large_neon_dotprod(const uint8_t *src_ptr,
+ int src_stride,
+ const uint8_t *ref_ptr,
+ int ref_stride, int w, int h,
+ uint32_t *sse, int *sum) {
+ uint32x4_t src_sum = vdupq_n_u32(0);
+ uint32x4_t ref_sum = vdupq_n_u32(0);
+ uint32x4_t sse_u32 = vdupq_n_u32(0);
+
+ int i = h;
+ do {
+ int j = 0;
+ do {
+ const uint8x16_t s = vld1q_u8(src_ptr + j);
+ const uint8x16_t r = vld1q_u8(ref_ptr + j);
+
+ const uint8x16_t abs_diff = vabdq_u8(s, r);
+ sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff);
+
+ src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1));
+ ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1));
+
+ j += 16;
+ } while (j < w);
+
+ src_ptr += src_stride;
+ ref_ptr += ref_stride;
+ } while (--i != 0);
+
+ *sum = horizontal_add_int32x4(
+ vreinterpretq_s32_u32(vsubq_u32(src_sum, ref_sum)));
+ *sse = horizontal_add_uint32x4(sse_u32);
+}
+
+static INLINE void variance_32xh_neon_dotprod(const uint8_t *src,
+ int src_stride,
+ const uint8_t *ref,
+ int ref_stride, int h,
+ uint32_t *sse, int *sum) {
+ variance_large_neon_dotprod(src, src_stride, ref, ref_stride, 32, h, sse,
+ sum);
+}
+
+static INLINE void variance_64xh_neon_dotprod(const uint8_t *src,
+ int src_stride,
+ const uint8_t *ref,
+ int ref_stride, int h,
+ uint32_t *sse, int *sum) {
+ variance_large_neon_dotprod(src, src_stride, ref, ref_stride, 64, h, sse,
+ sum);
+}
+
+void vpx_get8x8var_neon_dotprod(const uint8_t *src_ptr, int src_stride,
+ const uint8_t *ref_ptr, int ref_stride,
+ unsigned int *sse, int *sum) {
+ variance_8xh_neon_dotprod(src_ptr, src_stride, ref_ptr, ref_stride, 8, sse,
+ sum);
+}
+
+void vpx_get16x16var_neon_dotprod(const uint8_t *src_ptr, int src_stride,
+ const uint8_t *ref_ptr, int ref_stride,
+ unsigned int *sse, int *sum) {
+ variance_16xh_neon_dotprod(src_ptr, src_stride, ref_ptr, ref_stride, 16, sse,
+ sum);
+}
+
+#define VARIANCE_WXH_NEON_DOTPROD(w, h, shift) \
+ unsigned int vpx_variance##w##x##h##_neon_dotprod( \
+ const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, \
+ unsigned int *sse) { \
+ int sum; \
+ variance_##w##xh_neon_dotprod(src, src_stride, ref, ref_stride, h, sse, \
+ &sum); \
+ return *sse - (uint32_t)(((int64_t)sum * sum) >> shift); \
+ }
+
+VARIANCE_WXH_NEON_DOTPROD(4, 4, 4)
+VARIANCE_WXH_NEON_DOTPROD(4, 8, 5)
+
+VARIANCE_WXH_NEON_DOTPROD(8, 4, 5)
+VARIANCE_WXH_NEON_DOTPROD(8, 8, 6)
+VARIANCE_WXH_NEON_DOTPROD(8, 16, 7)
+
+VARIANCE_WXH_NEON_DOTPROD(16, 8, 7)
+VARIANCE_WXH_NEON_DOTPROD(16, 16, 8)
+VARIANCE_WXH_NEON_DOTPROD(16, 32, 9)
+
+VARIANCE_WXH_NEON_DOTPROD(32, 16, 9)
+VARIANCE_WXH_NEON_DOTPROD(32, 32, 10)
+VARIANCE_WXH_NEON_DOTPROD(32, 64, 11)
+
+VARIANCE_WXH_NEON_DOTPROD(64, 32, 11)
+VARIANCE_WXH_NEON_DOTPROD(64, 64, 12)
+
+#undef VARIANCE_WXH_NEON_DOTPROD
+
+static INLINE unsigned int vpx_mse8xh_neon_dotprod(const unsigned char *src_ptr,
+ int src_stride,
+ const unsigned char *ref_ptr,
+ int ref_stride, int h) {
+ uint32x2_t sse_u32[2] = { vdup_n_u32(0), vdup_n_u32(0) };
+
+ int i = h / 2;
+ do {
+ uint8x8_t s0, s1, r0, r1, diff0, diff1;
+
+ s0 = vld1_u8(src_ptr);
+ src_ptr += src_stride;
+ s1 = vld1_u8(src_ptr);
+ src_ptr += src_stride;
+ r0 = vld1_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ r1 = vld1_u8(ref_ptr);
+ ref_ptr += ref_stride;
+
+ diff0 = vabd_u8(s0, r0);
+ diff1 = vabd_u8(s1, r1);
+
+ sse_u32[0] = vdot_u32(sse_u32[0], diff0, diff0);
+ sse_u32[1] = vdot_u32(sse_u32[1], diff1, diff1);
+ } while (--i != 0);
+
+ return horizontal_add_uint32x2(vadd_u32(sse_u32[0], sse_u32[1]));
+}
+
+static INLINE unsigned int vpx_mse16xh_neon_dotprod(
+ const unsigned char *src_ptr, int src_stride, const unsigned char *ref_ptr,
+ int ref_stride, int h) {
+ uint32x4_t sse_u32[2] = { vdupq_n_u32(0), vdupq_n_u32(0) };
+
+ int i = h / 2;
+ do {
+ uint8x16_t s0, s1, r0, r1, diff0, diff1;
+
+ s0 = vld1q_u8(src_ptr);
+ src_ptr += src_stride;
+ s1 = vld1q_u8(src_ptr);
+ src_ptr += src_stride;
+ r0 = vld1q_u8(ref_ptr);
+ ref_ptr += ref_stride;
+ r1 = vld1q_u8(ref_ptr);
+ ref_ptr += ref_stride;
+
+ diff0 = vabdq_u8(s0, r0);
+ diff1 = vabdq_u8(s1, r1);
+
+ sse_u32[0] = vdotq_u32(sse_u32[0], diff0, diff0);
+ sse_u32[1] = vdotq_u32(sse_u32[1], diff1, diff1);
+ } while (--i != 0);
+
+ return horizontal_add_uint32x4(vaddq_u32(sse_u32[0], sse_u32[1]));
+}
+
+unsigned int vpx_get4x4sse_cs_neon_dotprod(const unsigned char *src_ptr,
+ int src_stride,
+ const unsigned char *ref_ptr,
+ int ref_stride) {
+ uint8x16_t s = load_unaligned_u8q(src_ptr, src_stride);
+ uint8x16_t r = load_unaligned_u8q(ref_ptr, ref_stride);
+
+ uint8x16_t abs_diff = vabdq_u8(s, r);
+
+ uint32x4_t sse = vdotq_u32(vdupq_n_u32(0), abs_diff, abs_diff);
+
+ return horizontal_add_uint32x4(sse);
+}
+
+#define VPX_MSE_WXH_NEON_DOTPROD(w, h) \
+ unsigned int vpx_mse##w##x##h##_neon_dotprod( \
+ const unsigned char *src_ptr, int src_stride, \
+ const unsigned char *ref_ptr, int ref_stride, unsigned int *sse) { \
+ *sse = vpx_mse##w##xh_neon_dotprod(src_ptr, src_stride, ref_ptr, \
+ ref_stride, h); \
+ return *sse; \
+ }
+
+VPX_MSE_WXH_NEON_DOTPROD(8, 8)
+VPX_MSE_WXH_NEON_DOTPROD(8, 16)
+VPX_MSE_WXH_NEON_DOTPROD(16, 8)
+VPX_MSE_WXH_NEON_DOTPROD(16, 16)
+
+#undef VPX_MSE_WXH_NEON_DOTPROD
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-06 17:01:19 +0000