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-rw-r--r--media/libaom/src/aom_dsp/arm/intrapred_neon.c590
1 files changed, 590 insertions, 0 deletions
diff --git a/media/libaom/src/aom_dsp/arm/intrapred_neon.c b/media/libaom/src/aom_dsp/arm/intrapred_neon.c
new file mode 100644
index 000000000..c85b1e910
--- /dev/null
+++ b/media/libaom/src/aom_dsp/arm/intrapred_neon.c
@@ -0,0 +1,590 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <arm_neon.h>
+
+#include "config/aom_config.h"
+#include "config/aom_dsp_rtcd.h"
+
+#include "aom/aom_integer.h"
+
+//------------------------------------------------------------------------------
+// DC 4x4
+
+// 'do_above' and 'do_left' facilitate branch removal when inlined.
+static INLINE void dc_4x4(uint8_t *dst, ptrdiff_t stride, const uint8_t *above,
+ const uint8_t *left, int do_above, int do_left) {
+ uint16x8_t sum_top;
+ uint16x8_t sum_left;
+ uint8x8_t dc0;
+
+ if (do_above) {
+ const uint8x8_t A = vld1_u8(above); // top row
+ const uint16x4_t p0 = vpaddl_u8(A); // cascading summation of the top
+ const uint16x4_t p1 = vpadd_u16(p0, p0);
+ sum_top = vcombine_u16(p1, p1);
+ }
+
+ if (do_left) {
+ const uint8x8_t L = vld1_u8(left); // left border
+ const uint16x4_t p0 = vpaddl_u8(L); // cascading summation of the left
+ const uint16x4_t p1 = vpadd_u16(p0, p0);
+ sum_left = vcombine_u16(p1, p1);
+ }
+
+ if (do_above && do_left) {
+ const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
+ dc0 = vrshrn_n_u16(sum, 3);
+ } else if (do_above) {
+ dc0 = vrshrn_n_u16(sum_top, 2);
+ } else if (do_left) {
+ dc0 = vrshrn_n_u16(sum_left, 2);
+ } else {
+ dc0 = vdup_n_u8(0x80);
+ }
+
+ {
+ const uint8x8_t dc = vdup_lane_u8(dc0, 0);
+ int i;
+ for (i = 0; i < 4; ++i) {
+ vst1_lane_u32((uint32_t *)(dst + i * stride), vreinterpret_u32_u8(dc), 0);
+ }
+ }
+}
+
+void aom_dc_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ dc_4x4(dst, stride, above, left, 1, 1);
+}
+
+void aom_dc_left_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ (void)above;
+ dc_4x4(dst, stride, NULL, left, 0, 1);
+}
+
+void aom_dc_top_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ (void)left;
+ dc_4x4(dst, stride, above, NULL, 1, 0);
+}
+
+void aom_dc_128_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ (void)above;
+ (void)left;
+ dc_4x4(dst, stride, NULL, NULL, 0, 0);
+}
+
+//------------------------------------------------------------------------------
+// DC 8x8
+
+// 'do_above' and 'do_left' facilitate branch removal when inlined.
+static INLINE void dc_8x8(uint8_t *dst, ptrdiff_t stride, const uint8_t *above,
+ const uint8_t *left, int do_above, int do_left) {
+ uint16x8_t sum_top;
+ uint16x8_t sum_left;
+ uint8x8_t dc0;
+
+ if (do_above) {
+ const uint8x8_t A = vld1_u8(above); // top row
+ const uint16x4_t p0 = vpaddl_u8(A); // cascading summation of the top
+ const uint16x4_t p1 = vpadd_u16(p0, p0);
+ const uint16x4_t p2 = vpadd_u16(p1, p1);
+ sum_top = vcombine_u16(p2, p2);
+ }
+
+ if (do_left) {
+ const uint8x8_t L = vld1_u8(left); // left border
+ const uint16x4_t p0 = vpaddl_u8(L); // cascading summation of the left
+ const uint16x4_t p1 = vpadd_u16(p0, p0);
+ const uint16x4_t p2 = vpadd_u16(p1, p1);
+ sum_left = vcombine_u16(p2, p2);
+ }
+
+ if (do_above && do_left) {
+ const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
+ dc0 = vrshrn_n_u16(sum, 4);
+ } else if (do_above) {
+ dc0 = vrshrn_n_u16(sum_top, 3);
+ } else if (do_left) {
+ dc0 = vrshrn_n_u16(sum_left, 3);
+ } else {
+ dc0 = vdup_n_u8(0x80);
+ }
+
+ {
+ const uint8x8_t dc = vdup_lane_u8(dc0, 0);
+ int i;
+ for (i = 0; i < 8; ++i) {
+ vst1_u32((uint32_t *)(dst + i * stride), vreinterpret_u32_u8(dc));
+ }
+ }
+}
+
+void aom_dc_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ dc_8x8(dst, stride, above, left, 1, 1);
+}
+
+void aom_dc_left_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ (void)above;
+ dc_8x8(dst, stride, NULL, left, 0, 1);
+}
+
+void aom_dc_top_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ (void)left;
+ dc_8x8(dst, stride, above, NULL, 1, 0);
+}
+
+void aom_dc_128_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ (void)above;
+ (void)left;
+ dc_8x8(dst, stride, NULL, NULL, 0, 0);
+}
+
+//------------------------------------------------------------------------------
+// DC 16x16
+
+// 'do_above' and 'do_left' facilitate branch removal when inlined.
+static INLINE void dc_16x16(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left,
+ int do_above, int do_left) {
+ uint16x8_t sum_top;
+ uint16x8_t sum_left;
+ uint8x8_t dc0;
+
+ if (do_above) {
+ const uint8x16_t A = vld1q_u8(above); // top row
+ const uint16x8_t p0 = vpaddlq_u8(A); // cascading summation of the top
+ const uint16x4_t p1 = vadd_u16(vget_low_u16(p0), vget_high_u16(p0));
+ const uint16x4_t p2 = vpadd_u16(p1, p1);
+ const uint16x4_t p3 = vpadd_u16(p2, p2);
+ sum_top = vcombine_u16(p3, p3);
+ }
+
+ if (do_left) {
+ const uint8x16_t L = vld1q_u8(left); // left row
+ const uint16x8_t p0 = vpaddlq_u8(L); // cascading summation of the left
+ const uint16x4_t p1 = vadd_u16(vget_low_u16(p0), vget_high_u16(p0));
+ const uint16x4_t p2 = vpadd_u16(p1, p1);
+ const uint16x4_t p3 = vpadd_u16(p2, p2);
+ sum_left = vcombine_u16(p3, p3);
+ }
+
+ if (do_above && do_left) {
+ const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
+ dc0 = vrshrn_n_u16(sum, 5);
+ } else if (do_above) {
+ dc0 = vrshrn_n_u16(sum_top, 4);
+ } else if (do_left) {
+ dc0 = vrshrn_n_u16(sum_left, 4);
+ } else {
+ dc0 = vdup_n_u8(0x80);
+ }
+
+ {
+ const uint8x16_t dc = vdupq_lane_u8(dc0, 0);
+ int i;
+ for (i = 0; i < 16; ++i) {
+ vst1q_u8(dst + i * stride, dc);
+ }
+ }
+}
+
+void aom_dc_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ dc_16x16(dst, stride, above, left, 1, 1);
+}
+
+void aom_dc_left_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above,
+ const uint8_t *left) {
+ (void)above;
+ dc_16x16(dst, stride, NULL, left, 0, 1);
+}
+
+void aom_dc_top_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above,
+ const uint8_t *left) {
+ (void)left;
+ dc_16x16(dst, stride, above, NULL, 1, 0);
+}
+
+void aom_dc_128_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above,
+ const uint8_t *left) {
+ (void)above;
+ (void)left;
+ dc_16x16(dst, stride, NULL, NULL, 0, 0);
+}
+
+//------------------------------------------------------------------------------
+// DC 32x32
+
+// 'do_above' and 'do_left' facilitate branch removal when inlined.
+static INLINE void dc_32x32(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left,
+ int do_above, int do_left) {
+ uint16x8_t sum_top;
+ uint16x8_t sum_left;
+ uint8x8_t dc0;
+
+ if (do_above) {
+ const uint8x16_t A0 = vld1q_u8(above); // top row
+ const uint8x16_t A1 = vld1q_u8(above + 16);
+ const uint16x8_t p0 = vpaddlq_u8(A0); // cascading summation of the top
+ const uint16x8_t p1 = vpaddlq_u8(A1);
+ const uint16x8_t p2 = vaddq_u16(p0, p1);
+ const uint16x4_t p3 = vadd_u16(vget_low_u16(p2), vget_high_u16(p2));
+ const uint16x4_t p4 = vpadd_u16(p3, p3);
+ const uint16x4_t p5 = vpadd_u16(p4, p4);
+ sum_top = vcombine_u16(p5, p5);
+ }
+
+ if (do_left) {
+ const uint8x16_t L0 = vld1q_u8(left); // left row
+ const uint8x16_t L1 = vld1q_u8(left + 16);
+ const uint16x8_t p0 = vpaddlq_u8(L0); // cascading summation of the left
+ const uint16x8_t p1 = vpaddlq_u8(L1);
+ const uint16x8_t p2 = vaddq_u16(p0, p1);
+ const uint16x4_t p3 = vadd_u16(vget_low_u16(p2), vget_high_u16(p2));
+ const uint16x4_t p4 = vpadd_u16(p3, p3);
+ const uint16x4_t p5 = vpadd_u16(p4, p4);
+ sum_left = vcombine_u16(p5, p5);
+ }
+
+ if (do_above && do_left) {
+ const uint16x8_t sum = vaddq_u16(sum_left, sum_top);
+ dc0 = vrshrn_n_u16(sum, 6);
+ } else if (do_above) {
+ dc0 = vrshrn_n_u16(sum_top, 5);
+ } else if (do_left) {
+ dc0 = vrshrn_n_u16(sum_left, 5);
+ } else {
+ dc0 = vdup_n_u8(0x80);
+ }
+
+ {
+ const uint8x16_t dc = vdupq_lane_u8(dc0, 0);
+ int i;
+ for (i = 0; i < 32; ++i) {
+ vst1q_u8(dst + i * stride, dc);
+ vst1q_u8(dst + i * stride + 16, dc);
+ }
+ }
+}
+
+void aom_dc_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ dc_32x32(dst, stride, above, left, 1, 1);
+}
+
+void aom_dc_left_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above,
+ const uint8_t *left) {
+ (void)above;
+ dc_32x32(dst, stride, NULL, left, 0, 1);
+}
+
+void aom_dc_top_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above,
+ const uint8_t *left) {
+ (void)left;
+ dc_32x32(dst, stride, above, NULL, 1, 0);
+}
+
+void aom_dc_128_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above,
+ const uint8_t *left) {
+ (void)above;
+ (void)left;
+ dc_32x32(dst, stride, NULL, NULL, 0, 0);
+}
+
+// -----------------------------------------------------------------------------
+
+void aom_d135_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ const uint8x8_t XABCD_u8 = vld1_u8(above - 1);
+ const uint64x1_t XABCD = vreinterpret_u64_u8(XABCD_u8);
+ const uint64x1_t ____XABC = vshl_n_u64(XABCD, 32);
+ const uint32x2_t zero = vdup_n_u32(0);
+ const uint32x2_t IJKL = vld1_lane_u32((const uint32_t *)left, zero, 0);
+ const uint8x8_t IJKL_u8 = vreinterpret_u8_u32(IJKL);
+ const uint64x1_t LKJI____ = vreinterpret_u64_u8(vrev32_u8(IJKL_u8));
+ const uint64x1_t LKJIXABC = vorr_u64(LKJI____, ____XABC);
+ const uint8x8_t KJIXABC_ = vreinterpret_u8_u64(vshr_n_u64(LKJIXABC, 8));
+ const uint8x8_t JIXABC__ = vreinterpret_u8_u64(vshr_n_u64(LKJIXABC, 16));
+ const uint8_t D = vget_lane_u8(XABCD_u8, 4);
+ const uint8x8_t JIXABCD_ = vset_lane_u8(D, JIXABC__, 6);
+ const uint8x8_t LKJIXABC_u8 = vreinterpret_u8_u64(LKJIXABC);
+ const uint8x8_t avg1 = vhadd_u8(JIXABCD_, LKJIXABC_u8);
+ const uint8x8_t avg2 = vrhadd_u8(avg1, KJIXABC_);
+ const uint64x1_t avg2_u64 = vreinterpret_u64_u8(avg2);
+ const uint32x2_t r3 = vreinterpret_u32_u8(avg2);
+ const uint32x2_t r2 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 8));
+ const uint32x2_t r1 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 16));
+ const uint32x2_t r0 = vreinterpret_u32_u64(vshr_n_u64(avg2_u64, 24));
+ vst1_lane_u32((uint32_t *)(dst + 0 * stride), r0, 0);
+ vst1_lane_u32((uint32_t *)(dst + 1 * stride), r1, 0);
+ vst1_lane_u32((uint32_t *)(dst + 2 * stride), r2, 0);
+ vst1_lane_u32((uint32_t *)(dst + 3 * stride), r3, 0);
+}
+
+void aom_v_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ int i;
+ uint32x2_t d0u32 = vdup_n_u32(0);
+ (void)left;
+
+ d0u32 = vld1_lane_u32((const uint32_t *)above, d0u32, 0);
+ for (i = 0; i < 4; i++, dst += stride)
+ vst1_lane_u32((uint32_t *)dst, d0u32, 0);
+}
+
+void aom_v_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ int i;
+ uint8x8_t d0u8 = vdup_n_u8(0);
+ (void)left;
+
+ d0u8 = vld1_u8(above);
+ for (i = 0; i < 8; i++, dst += stride) vst1_u8(dst, d0u8);
+}
+
+void aom_v_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ int i;
+ uint8x16_t q0u8 = vdupq_n_u8(0);
+ (void)left;
+
+ q0u8 = vld1q_u8(above);
+ for (i = 0; i < 16; i++, dst += stride) vst1q_u8(dst, q0u8);
+}
+
+void aom_v_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ int i;
+ uint8x16_t q0u8 = vdupq_n_u8(0);
+ uint8x16_t q1u8 = vdupq_n_u8(0);
+ (void)left;
+
+ q0u8 = vld1q_u8(above);
+ q1u8 = vld1q_u8(above + 16);
+ for (i = 0; i < 32; i++, dst += stride) {
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q1u8);
+ }
+}
+
+void aom_h_predictor_4x4_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ uint8x8_t d0u8 = vdup_n_u8(0);
+ uint32x2_t d1u32 = vdup_n_u32(0);
+ (void)above;
+
+ d1u32 = vld1_lane_u32((const uint32_t *)left, d1u32, 0);
+
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 0);
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 1);
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 2);
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u32(d1u32), 3);
+ vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(d0u8), 0);
+}
+
+void aom_h_predictor_8x8_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ uint8x8_t d0u8 = vdup_n_u8(0);
+ uint64x1_t d1u64 = vdup_n_u64(0);
+ (void)above;
+
+ d1u64 = vld1_u64((const uint64_t *)left);
+
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 0);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 1);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 2);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 3);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 4);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 5);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 6);
+ vst1_u8(dst, d0u8);
+ dst += stride;
+ d0u8 = vdup_lane_u8(vreinterpret_u8_u64(d1u64), 7);
+ vst1_u8(dst, d0u8);
+}
+
+void aom_h_predictor_16x16_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ int j;
+ uint8x8_t d2u8 = vdup_n_u8(0);
+ uint8x16_t q0u8 = vdupq_n_u8(0);
+ uint8x16_t q1u8 = vdupq_n_u8(0);
+ (void)above;
+
+ q1u8 = vld1q_u8(left);
+ d2u8 = vget_low_u8(q1u8);
+ for (j = 0; j < 2; j++, d2u8 = vget_high_u8(q1u8)) {
+ q0u8 = vdupq_lane_u8(d2u8, 0);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 1);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 2);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 3);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 4);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 5);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 6);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 7);
+ vst1q_u8(dst, q0u8);
+ dst += stride;
+ }
+}
+
+void aom_h_predictor_32x32_neon(uint8_t *dst, ptrdiff_t stride,
+ const uint8_t *above, const uint8_t *left) {
+ int j, k;
+ uint8x8_t d2u8 = vdup_n_u8(0);
+ uint8x16_t q0u8 = vdupq_n_u8(0);
+ uint8x16_t q1u8 = vdupq_n_u8(0);
+ (void)above;
+
+ for (k = 0; k < 2; k++, left += 16) {
+ q1u8 = vld1q_u8(left);
+ d2u8 = vget_low_u8(q1u8);
+ for (j = 0; j < 2; j++, d2u8 = vget_high_u8(q1u8)) {
+ q0u8 = vdupq_lane_u8(d2u8, 0);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 1);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 2);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 3);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 4);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 5);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 6);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ q0u8 = vdupq_lane_u8(d2u8, 7);
+ vst1q_u8(dst, q0u8);
+ vst1q_u8(dst + 16, q0u8);
+ dst += stride;
+ }
+ }
+}
+
+static INLINE void highbd_dc_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
+ const uint16_t *above,
+ const uint16_t *left) {
+ assert(bw >= 4);
+ assert(IS_POWER_OF_TWO(bw));
+ int expected_dc, sum = 0;
+ const int count = bw * 2;
+ uint32x4_t sum_q = vdupq_n_u32(0);
+ uint32x2_t sum_d;
+ uint16_t *dst_1;
+ if (bw >= 8) {
+ for (int i = 0; i < bw; i += 8) {
+ sum_q = vpadalq_u16(sum_q, vld1q_u16(above));
+ sum_q = vpadalq_u16(sum_q, vld1q_u16(left));
+ above += 8;
+ left += 8;
+ }
+ sum_d = vadd_u32(vget_low_u32(sum_q), vget_high_u32(sum_q));
+ sum = vget_lane_s32(vreinterpret_s32_u64(vpaddl_u32(sum_d)), 0);
+ expected_dc = (sum + (count >> 1)) / count;
+ const uint16x8_t dc = vdupq_n_u16((uint16_t)expected_dc);
+ for (int r = 0; r < bw; r++) {
+ dst_1 = dst;
+ for (int i = 0; i < bw; i += 8) {
+ vst1q_u16(dst_1, dc);
+ dst_1 += 8;
+ }
+ dst += stride;
+ }
+ } else { // 4x4
+ sum_q = vaddl_u16(vld1_u16(above), vld1_u16(left));
+ sum_d = vadd_u32(vget_low_u32(sum_q), vget_high_u32(sum_q));
+ sum = vget_lane_s32(vreinterpret_s32_u64(vpaddl_u32(sum_d)), 0);
+ expected_dc = (sum + (count >> 1)) / count;
+ const uint16x4_t dc = vdup_n_u16((uint16_t)expected_dc);
+ for (int r = 0; r < bw; r++) {
+ vst1_u16(dst, dc);
+ dst += stride;
+ }
+ }
+}
+
+#define intra_pred_highbd_sized_neon(type, width) \
+ void aom_highbd_##type##_predictor_##width##x##width##_neon( \
+ uint16_t *dst, ptrdiff_t stride, const uint16_t *above, \
+ const uint16_t *left, int bd) { \
+ (void)bd; \
+ highbd_##type##_predictor(dst, stride, width, above, left); \
+ }
+
+#define intra_pred_square(type) \
+ intra_pred_highbd_sized_neon(type, 4); \
+ intra_pred_highbd_sized_neon(type, 8); \
+ intra_pred_highbd_sized_neon(type, 16); \
+ intra_pred_highbd_sized_neon(type, 32); \
+ intra_pred_highbd_sized_neon(type, 64);
+
+intra_pred_square(dc);
+#undef intra_pred_square
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 12:42:02 +0000